008070   Saurav Kumar K;Singh V K;Majhi M R (Ceramic Engineering Dep, Indian Institute of Technology (BHU), Varanasi-221 005, Email: ksaurav.cool@gmail.com) : Fractal and thermal diffusivity of porous spinel develop by ex potato statch. Rasayan J Chem 2017, 10(1), 92-8.

The echelon little bit of porosity be able to be dissimilar as the little bit of void breathing space relative to the clear total bulk volume of the model Porosity in supplies start off from divergent processing and task routes. On behalf of the extent of the midst of worn to bring into being these materials (the addition of bubble agents and untreated compounds), the pore grows old category via segment renovation presents key feature such as without a hitch processing and the nonappearance of contaminated volatiles. Accompanied by the apposite materials for liveliness reduction purpose, permeable ceramics are dazzling because they merge essential ceramic properties, such as multifaceted limpness and refractoriness, with squat thermal conductivity. Exceeding and beyond reduction energy, the shrink heat loss to the milieu also improves working conditions minimizing the employees' stress as a consequence of their revelation to far above the ground temperatures. Absorbent ceramic Products wrap far-reaching assortment of complicated ceramic materials, which canister be alive silicides borides, nitrides. The belongings of permeable ceramic item for utilization depend untruthful on three most important facet the chattels of the ceramic substance of which the relic is sensitively implicated by concreteness porosity and potency of material which was used for increasing the porosity.

6 illus, 8 ref

008069   Sathish Kumar;Ashwani Kumar;Sharma N K (NO, , ) : Voltage stability assessment of wind integrated system for variable wind speed with FACTS devices. J Alternate Energy Sour Technol 2016, 7(3), 15-22.

Requirement of power utilization is increasing exponentially both by industrial usage as well as in our day-to-day life due to inclusion of latest developments in the technology and automation. So, increase of power generation from conventional as well as non-conventional type of energy resources to meet these challenges is also needed. This increase in power generation is not possible alone by existing methods. Wind energy and integration of wind energy system with existing systems to increase the power generation is one of the methods to meet day to day need of high power demands. Though, an integration of wind system needs some compensation techniques to increase the power generating capacity of multimachine machine system. Reactive power compensation or drop in voltage of various buses of the system is needed from the stability point of view. Inclusion of FACTS, devices to boost active power proves to be good method for this purpose especially when the system is integrated with renewable energy resources. Based on simulated IEEE-14 Bus wind integrated system provided by PSAT, the performance of various FACTS devices needs to be checked, so that variations in the bus voltages of the integrated system can be controlled to improve the stability of the system. In this paper Identification of various week buses by Line Voltage stability indices are presented with in the composite system so that placement of suitable FACTS devices can be done to improve the performance of the system.

008068   Sanjay B P;Nirkhe Saurabh P (NO, , ) : Use of recycled aggregates in concrete mix used as white topping. J Constr Engng Technol Mgmt 2016, 6(3), 57-62.

Concrete, steel, brick, stone, glass, clay, mud and wood are the key materials for construction of any civil structure. Now a day's cement concrete is the main construction material used worldwide in construction industries. As per the environmental change, concrete conserve resources, protect the environment, economize and lead to proper utilization of energy. To triumph this, use of wastes and by-products in concrete mix used for new constructions in a concrete mix, recycled aggregates play a very important role as a major constitute of concrete. By using recycled aggregate, we reduced the ingesting of energy and natural materials and ingesting of waste materials. Under this topic, we focus on sustainable development for our country. In this paper, we focus on, using recycled aggregate as alternative to natural aggregate with varying replacement percentage for the concrete mix used for existing pavements.

008067   Sandhu N S;Chanana S (NO, , ) : Control strategy for wind turbine operation under wind variations. J Alternate Energy Sour Technol 2016, 7(2), 45-55.

Wind energy is found to be viable energy source out of all nonconventional energy resources. Wind turbine, a major component of wind energy conversion system is used to capture the kinetic energy associated with the wind for driving the generator. Output of wind turbines varies in accordance with the wind variations. Therefore, in order to control the power output wind turbine employed needs some control during such variations. As observed from literature, most of the researchers have used blade pitch control during such operations, whereas, few adopted the yaw control. Such controls if adopted make the system expansive and complicated. Keeping it in view, in this paper a new approach based upon the load adjustments is proposed to control the wind turbine output during wind variations. Approach as proposed seems to be simple in comparison to existing techniques. Simulation results as obtained using developed matlab model prove the effectiveness of such control. Model as proposed is found to be effective to eliminate the power and torque fluctuations during wind variations.

008066   Saha S;Rajasekaran C (NO, , ) : Strength characteristics of recycled aggregate concrete produced with portland slag cement. J Constr Engng Technol Mgmt 2016, 6(1), 70-77.

At present, the demand of natural resources is increasing trend because of the rapid growth of the construction industry. The amount of construction and demolition waste is also increasing day by day. This affects the environment very badly. To protect the environment, reuse of the construction and demolition waste (C&DW) is one of the important steps. The aim of this day is to use C&DW as recycled coarse aggregates for the production of concrete. Use of recycled coarse aggregates helps to protect natural resources and the environment. This also helps to promote sustainability in construction industry. In this experimental study, ordinary Portland cement is also replaced by Portland slag cement fully. A comparative study on the strength characteristics of Ordinary Portland Cement based and Portland Slag Cement based concrete made with recycled coarse aggregates has been presented and discussed in this paper.

008065   Roy S C D (NO, , 164, Hauz Khas Apartments (SFS), Aurobindo Marg, New Delhi) : Theoretical investigation into the limits of bandwidth enhancement with the asymmetrical bridged T-coil network. IETE J Res 2016, 62(3), 379-86.

This paper presents the results of a theoretical investigation of the asymmetrical bridged T-coil (BTC) bandwidth enhancement network under the condition of maximally flat magnitude (MFM) response. Conventionally, the BTC is used in the symmetrical configuration and it is well known that, as compared to the commonly used RC load, the maximum bandwidth enhancement ratio (BWER) under the MFM condition is 2√2. It is shown here that by introducing asymmetry, even under the constraint of MFM response, the maximum achievable BWER is theoretically unlimited, the limit being set only by practical considerations. Unlimited BWER has never been considered possible, even theoretically, with BTC or any other network, and the result reported here is believed to be a breakthrough in the design of wide-band and ultra wide-band amplifiers. Simulations for a few designs indicate that practical realization of the full potential of the asymmetrical BTC may have to wait for improved technologies which facilitate tight coupling between the two parts of the coil and also minimize parasitic effects.

5 illus, 1 table, 36 ref

008064   Rasheed E K (NO, , ) : Preparing a blueprint for modification and development of the reality of the construction contracts in Iraq. J Constr Engng Technol Mgmt 2016, 6(1), 84-105.

In the field of contracting the contract is at the top of the commitment sources to the two parties namely; contractor and employer, so it is necessary to know the matter related to a contract because the original base is that "the contract is a law of contractors". The state is able to protect the public interest, accounting and punish the abusers, and then cooperating between parties of the contract and facilitating the implementation of construction contracts speeding in decision-making regarding difficulties and problems in the justice and fairness that become acceptable policy which should be encouraged to work and protect it within the limits prescribed legally, because the process of applying contracting is a balancing act between requirements of its good implementation and among the motives that compel contractors to participate in competitions and these motives appear in the two things, firstly accomplished a good work in accordance with the conditions of the contract and specifications and a good degree of quality, secondly doing the work at the lowest possible cost for the contractor hoping to make a profit suitable for him. The aim of this research is to explain some items about the construction contract and the relationship between its parties to the notes of a clear lack of ability of some of the engineers, may be some of them at the center of decision-making, in order to develop a blueprint of modification and development the reality of construction contract in Iraq, to achieve this field survey was done of the most important problematic in the application and understanding of the contract and then prepare a questionnaire to the experts in this area of the three parties involved in construction contracts, the consultants, the clients (employers) and the contractors. The most important conclusions reached by the research is that the contracts still faces obstacles from several parties and development contracts has become imposes itself, it was observed that the probability of problems in construction contract about 93%, which confirms the presence of wide gaps in the application of construction contract as well as the need to train engineering staff or a placement of guide (manual) shows them how to deal with contracts and managing it in different stages with necessary forms to be there kind of general principles governing all parties.

008063   Ramya G;Sundari S;Sukumar S (NO, , ) : Experimental analysis of filler slab using self-compacting concrete. J Constr Engng Technol Mgmt 2016, 6(3), 15-24.

Present-day self-compacting concrete is classified as an advanced construction material. Self-compacting concrete (SCC) is an innovative concrete that does not require vibration for placing and compaction. It can flow under its weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. The hardened concrete is dense, homogeneous and has the same engineering properties and durability as traditional vibrated concrete. An important improvement of health and safety is achieved through elimination of handling of vibrators and a substantial reduction of environmental noise loading on and around a site. The composition of SCC mixes includes substantial proportions of fine-grained inorganic materials, and this gives possibilities for utilization of mineral admixtures, which are currently waste products with no practical applications. The primary objective of this study is to make use of the optimum percentage of fly ash in addition to cement and vary the percentage of fine aggregate in terms of total aggregate and understand its effects on the fresh and hardened properties of concrete. The workability of SCC increased as the percentage of fine aggregate is increased. The study also intended to find the optimum mix design ratio for the M20 grade that satisfies both the fresh and hardened properties. Slump flow, V-funnel, L-flow and compressive strength tests were carried out to examine the performance of SCC. Then the filler slab specimens were cast in different sizes and tested for their flexural behaviour, and the results compared with the theoretical values.

008062   Rajak A K;Niraj M;Kumar S (Mechanical Engineering Dep, National Institute of Technology, Jamshedpur-831 014, Jharkhand, Email: anuprajak14@gmail.com) : Designing of multi criteria decision making heuristic model based on fuzzy inference system approach for evaluating raking of the alternatives. J scient ind Res 2016, 75(10), 604-8.

This paper concerns with proposing a Fuzzy Inference System based expert system to breakthrough Multi Criteria Decision Making (MCDM) problem. Several approaches exist in the literature to objectively evaluate suppliers including fuzzy logic and total cost of the company. External purchase of products and services generally account for more savings can be realized by effectively selecting suppliers. In this study, we proposed a supplier selection analysis model considering Fuzzy Inference System technique is used for calculating the supplier ratings. The main objective of this study is to reduce procurement cost and develop closeness and long term relationship between buyer and suppliers in today's competitive scenario.

3 illus, 3 tables, 14 ref

008061   Raja C;Praveen Kumar K (NO, , ) : Performance analysis of clustering network using enhanced DEC protocol for WSN. J Netwk Secur 2016, 4(1), 23-31.

Each node of a wireless sensor network (WSN) is connected to several other sensors. These sensor nodes can be deployed in dense for monitoring variety and wide range of applications. There are different types of protocols in WSN used to route the packets from source to destination. They are data-centric, hierarchical, and location-based and network flow and quality of service. To manage the energy consumption of WSN, one of the best hierarchical protocols is low-energy adaptive clustering hierarchy (LEACH) protocol. However there is no guaranteed cluster head election in LEACH. In this paper, a deterministic model is developed to manage and organize clustering heads, which is deterministic energy-efficient clustering protocol (DEC). A deterministic energy-efficient clustering protocol promises a better election of cluster heads and is dynamic, distributive in nature, self-organizing and more energy-efficient than the existing conventional LEACH protocols. It utilizes a simplified approach, which minimizes computational overhead-cost to self-organize the sensor network. Then the performance parameters of LEACH and DEC protocols are determined and analyzed by using MATLAB. The simulation results shows that DEC protocol has better performance than the existing LEACH protocol.

008060   Rahou F Z;Guen Bouazza A;Bouazza B (Materials and Renewable Energy Research Unit, Electronic and Electric, Faculty of Technology, Abou-Bekr Belkaid Univ, Tlemcen, Algeria) : Performance improvement of Pi-gate SOI MOSFET transistor using high-k dielectric with metal gate. IETE J Res 2016, 62(3), 331-8.

Pi-gate silicon-on insulator (SOI) MOSFET transistors have emerged as novel devices due to its simple architecture and better performance, better control over short-channel effects, and reduced power dissipation due to reduced gate leakage currents. As the oxide thickness scales below 2 nm, leakage currents due to tunnelling increase drastically, leading to high power consumption and reduced device reliability. Replacing the SiO₂ gate oxide with a high-k material allows increased gate capacitance without the associated leakage effects. In this paper, we present the results of a 3D numerical simulation of the Pi-gate SOI MOSFET transistor. 3D device structure, based on the technology SOI is described and simulated by using SILVACO TCAD tools, and we compare the electrical characteristics results for titanium nitride (TiN) fabricated on AI₂O₃ (k <126> 9), HfO₂ (k <126> 20), and La₂O₃ (k <126> 30) gate dielectric. Excellent dielectric properties such as high-k constant, low leakage current, threshold voltage, and electrical characteristics were demonstrated. From the simulation result, it was shown that HfO₂ is the best dielectric material with metal gate TiN.

8 illus, 3 tables, 10 ref

008059   Raguvaran S;Princess J B P (Computer Science and Engineering Dep, KPRIET, Coimbatore-641 407) : Leveraging Hadoop framework for predicting underground water levels. Int J latest Technol Mgmt appl Sci 2016, 5(8), 72-4.

Life, both animal and plant, is impossible without water. Water scarcity is a vital scenario to be considered in the current world. In India with the increasing population and growth of industries the water availability is becoming inadequate to meet up the requirements of people. So predicting the water level is significant to know about water scarce in the impending years. Here we use Big Data Analytics in the study of developing forecasting models for predicting underground water levels. In this prediction first the data of present underground water level is collected as an ingest data operation, which is next moved into the big data storage. Then dynamic linear modelling algorithm is used to observe the pattern of historical data and predict the future underground water levels by applying data-driven analytics and data mining concepts.

1 table, 9 ref

008058   Raahul Krishna;Bandewar A G;Patil V K (NO, , ) : Emission characteristics investigation of single cylinder VCR diesel engine using calophyllum inophyllum biodiesel blends as fuel. J Alternate Energy Sour Technol 2016, 7(1), 1-7.

This work presents experimental investigation on a single cylinder vertical diesel engine with Calophyllum Inophyllum (Undi) biodiesel blends. Experiments were conducted using pure diesel, 25, 50 and 75% blends by varying the compression ratio, and the exhaust emission characteristics obtained using a computerized exhaust gas analyzer are presented here. From the results obtained, it was concluded that the biodiesel blends had equivalent emission characteristics with no modifications in the VCR engine.

008057   Prjapati K C;Patel J (NO, , ) : Recent developments in solar photovoltaics and thermal hybrid technology. J Alternate Energy Sour Technol 2015, 6(1), 14-34.

The electrical performance of solar PV panel decreases with increase in the panel/module temperature which is cause of concern in the summer season. To decrease the effect on elec-trical performance due to increase in module temperature, heat is extracted from the module and used as thermal energy. Heat exchanger or heat extraction device is put on the rear sur-face of the PV panel and working fluid or coolant is flowed in the heat extraction device. The working fluid used is water, air; refrigerant or combined. This keeps the module surface tem-perature in limit. Thus the whole configuration of system is known as Solar Photovolta-ic/Thermal (PV/T)-Hybrid System. As end-result, we get electricity along with thermal energy which optimizes the system performance. Study conducted on recent development in PV/T hy-brid solar collector technology has been discussed in this paper. The effect of collector design and working fluid on the electrical efficiency and thermal efficiency have also been discussed along with the various parameters- solar radiation intensity, rise in temperature of working fluid, etc.

008056   Priya L;Kandaswamy A;Lakshmi C D (Biomedical Engineering Dep, PSG College of Techonology, Coimbatore, Tamil Nadu, Email: lpm@bme.psgtech.ac.in) : Blind signal processing for electrocardiogram signal transmission. J scient ind Res 2016, 75(9), 547-51.

Direct transmission of Electrocardiogram (ECG) signal through wireless network is susceptible to Inter Symbol Interference (ISI). Transmission of ECG signal over a band limited channel or through a multipath propagation causes ISI. The proposed work mitigates the Inter symbol Interference using blind equalization algorithm and estimate the transmitted ECG signal without transmitter assistance. This paper discuss the importance of blind equalization for physiological signal transmission over existing wireless networks such as 3G mobile networks and Wireless Body Area Networks (WBAN's).This method has been validated Swith existing conventional equalization techniques based on computational complexity, correlation coefficient, convergence rate and Mean Square Error (MSE). Results indicated that the performance of blind equalizer same as that of the non blind equalizer, but they do not rely on training signals is the major advantage for deploying this blind receiving scheme in biotelemetry applications.

3 illus, 2 tables, 10 ref

008055   Preethi S A A (NO, , ) : Low power and area efficient system achieved by using efficient virtual channels on network on chip. J Netwk Secur 2016, 4(2), 36-41.

In network-on-chip (NoC), the data transferring by virtual channels can avoid the issue of data loss and deadlock. Many virtual channels on one input or output port in a router are included. However, if the router includes five I/O ports, then the power issue is very important in virtual channels. In this paper, a novel architecture, namely, smart power-saving (SPS), for low power consumption and low area in virtual channels of NoC is proposed. The SPS architecture can accord different environmental factors to dynamically save power and optimization area in NoC. Comparing with related works, the new proposed method reduces 37.31, 45.79, and 19.26% on power consumption and reduces 49.4, 25.5 and 14.4% on area, respectively.

008054   Prakash R G (BMS Institute of Technology & Management, Dodaballapur Road, Avalahalli Yelahanka, Bengaluru-560 064) : What is a geometric spanner of resizable Hadoop channel for homogeneous lower bounds?. Int J latest Technol Mgmt appl Sci 2016, 5(8), 9-27.

Developed a novel technique for resizable Hadoop cluster's lower bounds, the template matching rectangular array of geometric spanner expressions. Specifically, fix an arbitrary hybrid kernel function f:{0, 1}^{n → {0,1} and let A_f be the rectangular array of geometric spanner expressions whose columns are each an application of f to some subset of the variables x₁, x₂, ... x_4n. We prove that A_f has bounded-capacity resizable Hadoop cluster's complexity Ω(d), where d is the approximate degree of f. This finding remains valid in the MapReduce programming model, regardless of prior measurement. In particular, it gives a new and simple proof of lower bounds for robustness and other symmetric conjunctive predicates. We further characterize the discrepancy, approximate PageRank, and approximate trace distance norm of Af in terms of well-studied analytic properties of f, broadly generalizing several findings on small-bias resizable Hadoop cluster and agnostic inference. The method of this paper has also enabled important progress in multi-cloud resizable Hadoop cluster's complexity.}

42 ref

008053   Prajapati A K;Chaudhari P K;Mazumdar B; Choudhary R (Chemical Engineering Dep, Institute of Engineering and Science Indore, Indore-452 001, Email: abhineshtk@gmail.com) : Treatment of rice grain based biodigester distillery effluent(BDE) using inorganic coagulants. Indian J chem Technol 2016, 23(6), 491-6.

The removal of COD and colour from biodigester effluent (BDE) of rice grain based alcohol distillery plant has been studied using inorganic coagulant such as CaCO₃, CuNO₃ and Na₂SiO₃. CuNO₃ is found to be more effective, among all coagulant. COD reduction of 78, 83 and 51% and colour reduction of 75, 78 and 41% is obtained using 60 mM CaCO₃, 40 mM CuNO₃ and 40 mM Na₂SiO₃ respectively, at their optimum initial pH_i. The pH of effluent-coagulant mixture play a major role in removal of pollutant from the BDE. CuNO₃ gives 83% COD reduction and 78% colour reduction along with good settling property. 82% settling occurred with alum in 25 min. The properties of filtrate and residues have also been analyzed.

6 illus, 3 tables, 24 ref

008052   Prabhakar U;Bajpai P (NO, , ) : Understanding quality in construction. J Constr Engng Technol Mgmt 2016, 6(3), 70-4.

Quality has transformed into a fundamental part of the construction project management industry. With creating competition between various private firms, quality control and quality assurance has grown to accomplish its significance in the construction industry. Quality administration has been inserted in as a part of the framework for quite a while now but still defects arise. This conflict arises due to difference in the management's and the consumer's perception of a quality product. This study has been carried out as an endeavor to understand if there really is any distinction or not. Just when this is seen accurately, can quality genuinely be judged? In other words, one should differentiate between the factual definition of quality and quality as a perception. The providers of services or goods that meet specifications achieve quality in fact. In other words, a product can be of high quality and yet it may not meet customer's needs and vice versa. Thus, a hypothesis testing using t-test has been carried out in this study to comprehend if there exist a difference in perception of people belonging to different age groups and educational backgrounds.

008051   Pattathurani L;Dwibedi R K (NO, , ) : Energy stored quasi Z source cascaded multilevel inverter. J Elect Des Technol 2016, 7(2), 24-34.

In the world today, there is a huge demand of power, although we have sufficient energy generation technique, renewable energy power generation plays a major role, like solar. This paper is about the control technique which includes ES-QZSI combined with CMI and energy storage in order to get constant output power without fluctuation from the solar panel. Combines cascaded multilevel inverter and quasi Z source inverter. Battery is used to balance the fluctuations of photovoltaic systems and achieve high voltage/high power. Solar power presents the intermittent and unscheduled characteristics, so energy storage is always added in PV system to get a smooth power. Energy stored QZSI (ES-QZSI) has already been proposed for PV system application. If combining the ES-QZSI with the CMI together, the ES-QZS-CMI based PV system will inherit all the merits of the energy storage and QZS-CMI based PV system. Moreover, comparing to the QZS-CMI based PV system, the new system can send the balanced power to the grid, and at the same time each module ensures separate MPPT to collect maximum solar power.

008050   Patil R S (NO, , ) : Use of steel slag in fly ash based concrete for white topping. J Constr Engng Technol Mgmt 2016, 6(3), 63-9.

The fast growth in industrialization has resulted in tons of by products or waste materials, which can be used as secondary cementitious materials such as fly ash, steel slag etc. The use of these byproducts not only helps to utilize these waste materials but also improves the properties of concrete in fresh and hydrated states. Steel slag and fly ash are the two materials used in concrete. Most concrete produced nowadays includes one or multiple materials. That is why their properties are usually compared to each other by mix designers, needed to optimize concrete mixtures. In the present work, a number of tests were carried out to make comparative studies of mechanical properties of concrete mixes prepared by using ultra tech brand Portland cement, fly ash in 20, 25, 30 and 35% proportions of replacement, steel slag in 20, 25, 30 and 35% of replacement. The fine aggregate used is natural sand belongs to zone II as per IS 383-1982. The coarse aggregate used is of 20 mm size. The properties were studied for 150 days for compressive and flexural strength.

008049   Patel M K;Sahoo H K;Ghanshyam C (Academy of Scientific and Innovative Research, (AcSIR), Rafi Marg, New Delhi-110 011) : High voltage generation for charging of liquid sprays in air-assisted electrostatic nozzle system. IETE J Res 2016, 62(3), 424-31.

Electrostatic induction charging has proven itself as one of the best methods adopted in agricultural pesticides spraying. Pesticide droplets get charged while passing through a charging electrode which is connected to a high voltage along with the grounded liquid jet. Negatively charged droplets follow the electric lines of forces and get attracted towards the target which is at ground potential. In this paper, a compact size DC to DC converter is designed and developed to generate high voltage. The circuit consists of two sections, a DC to AC converter and an AC to DC converter, which can also be termed as an inverter and Cockcroft Walton multiplier. The converter utilized a 9.0 volt DC rechargeable battery to give a high voltage output. The converter has been used for spray charging in air-assisted electrostatic nozzle system placed inside the nozzle holder. The results were in good agreement with the theoretical concepts and practices. The designed power supply system showed the output stability at higher frequency range which has optimum ripple and voltage drop when applied with load.

7 illus, 38 ref

008048   Pant D (Waste Management Laboratory, Environmental Sciences Dep, Central Univ of Himachal Pradesh, Dharamshala, Himachal Pradesh-176 215, Email: dpant2003@yahoo.com) : Green recycling of waste optical disc to urethane products. J scient ind Res 2016, 75(5), 322-7.

A new green recycling method of Polycarbonate (PC) plastic, from waste optical disks (ODs), to urethane products is proposed. Recycling involves the reaction of PC with glycol and urea at 180°C under ammonia saturated condition. Optimum weight ratio (ethylene glycol to urea and PC) and time for recycling was decided with the help of sequential UV spectroscopic analysis at different weight ratios and time. IR spectroscopy evidences the presence of ethylene glycol carbamate (EGC) as active reaction intermediate. The resultant product mixture consists of following as the major reaction products: (i) BPA-C (Bisphenol A Carbamate; 4-[2-(4-hydroxyphenyl)propan-2-yl]phenyl carbamate) (40%); (ii) BPA-DC (Bisphenol A dicarbamate; propane-2,2-diyldibenzene-4,1-diyl dicarbamate) (45%) and ; (iii) BPA-CC (Bisphenol A carbamoylcarbamate; 4-{2-[4-(carbamoyloxy)phenyl]propan-2-yl}phenyl carbamoylcarbamate) (13%) as shown by LC-MS, NMR and elemental analysis. It is found that proposed process is 3.2 times more greener then the parallel process using process mass intensity (PMI) calculation. These products are found to be potent antimicrobial which can extend its application as material resources.

2 illus, 1 table, 20 ref

008047   Pandya B Y;Patel J R (NO, , ) : Heat transfer in single effect solar assisted LiBr-H₂O absorption refrigeration cycle. J Alternate Energy Sour Technol 2016, 7(2), 1-11.

This paper describes the heat transfer model of LiBr-H2O vapour absorption cooling system implemented in engineering equation solver (EES). The detailed first law analysis of the system is presented. Effects of operating temperature and pressure on the heat load in various components, coefficient of performance (COP), and circulation ratio of the system have been carried out. Impact of solution heat exchanger effectiveness on system performance is also studied. The study shows that COP of system increases with increasing generator and evaporator temperature. As the effectiveness of solution heat exchanger increases there is a reduction in heat load of generator and absorber and causes the improvement of COP of system. The possible solution to avoid the crystallization in LiBr-H2O vapour absorption cooling system is discussed.

008046   Padmapriya S;Tamilarasi M (Electronics and Communication Engineering Dep, Pondicherry Engineering College, Pondicherry Univ, Puducheery) : Co-channel interference avoidance algorithm for closed access femtocell networks. IETE Tech Rev 2016, 33(3), 280-96.

Femtocells play a promising role in next generation cellular networks as they provide high quality voice and data service to indoor users. However, deployment of dense, unplanned, and closed access femtocells over limited resource may induce co-tier co-channel interference (CTCCI) and cross-tier co-channel interference (XTCCI). These interferences seriously affect the quality of service (QoS) experienced by macro- and femtousers. To collectively handle such interferences, we propose an interference-free resource and power allocation (IFRPA) algorithm for macro-femtocell networks. Based on the channel quality indicator and out-of-boundary radiation, the IFRPA algorithm assigns downlink power and non-interfering downlink resource to the femtocells, thereby protecting the link quality of nearby co-channel deployed macro- and femtousers. Adopting frequency reuse phenomenon with centralized resource coordination has maximized resource utilization factor and overall service success ratio. Simulation results show that the IFRPA algorithm proposed by us makes the user to experience less XTCCI and CTCCI, which are below the tolerable limits, whereas the existing distributed random access (DRA) algorithm drowns the link quality of the users. Apart from interference reduction, QoS class identifier based service grant enables the IFRPA algorithm to offer significantly higher throughput and capacity compared with the DRA algorithm.

9 illus, 2 tables, 12 ref

008045   Orumo B K;Hari A;Kuye A (NO, , ) : Correlations for some thermal hydraulic parameters for a pressurized water reactor. J nucl Engng Technol 2016, 6(1), 1-10.

Pressurized Water Reactor (PWR) constitutes majority of nuclear power plants used worldwide because of its stability which enhances operability. However, the design and safe operation of the PWR is dependent on certain thermal hydraulic parameters such as friction factor and heat transfer. In this study, therefore the correlations for the calculation of the two important thermal hydraulic parameters are presented. Correlations used include: Dittus-Boelter and Chilton-Colburn for heat transfer, Blasius and Drew et al. for the friction factor. Microsoft Excel regression analysis and the solver tools were used to determine the various parameters for these correlations. The correlations are applicable within the range 2000 <60> Re <60> 5 x 10^{6 and 0.5 <60> Pr <60> 2000 for the heat transfer and 3000 ≤ Re ≤ 3 x 105 for the friction factor. Experimental data obtained from literature were then used to validate the different correlation parameters. It was found that the lowest average and maximum percentage deviations for friction factor are: Blasius (0.38% and 0.74%) and Drew et al. (0.62% and 1.48%). For the heat transfer: Dittus-Boelter (less than 0.01%) and Chilton-Colburn (0.31% and 0.85%).}

008044   Nimisha M K;Gopinath S (NO, , ) : Optimizaion of energy efficiency in multihop cooperative communication networks. J Netwk Secur 2016, 4(2), 48-52.

Next-generation wireless networks use point-to- multipoint paradigms of classical cellular networks. They will be based on large interactions, where the involved nodes cooperate with one another in order to improve the performance of their own communication and that of the global network. Cooperative communications based on relaying nodes have a promising approach to increase spectral and power efficiency, network coverage, and to reduce outage probability. The concept of Cooperative Communication (CC) is to exploit the broadcast nature of wireless networks where the neighboring node overhears the source signal and relays the information to the destination. The aim of this work is to exploit multihop cooperative transmission technique to combat the effect of fading and channel interferences. Our proposed method consider channel assignment, relay assignment and power control by taking the advantage of spatial diversity in cooperative wireless networks to improve the energy efficiency. We propose comparison of Direct Transmission (DT) and Cooperative Transmission (CT) in static and dynamic wireless networks. For optimizing the energy of static and dynamic network we propose an algorithm. The energy optimization of static network is done by using Branch and Bound algorithm. For dynamic network online algorithm is proposed. Branch and bound algorithm is mainly used for finding the optimal solution of a problem. By using these algorithms energy is optimized.

008043   Navanietha Krishnaraj R;Pal P (Environment and Membrane Separation Laboratory, Chemical Engineering D, National Institute of Technology, Durgapur-713 209, Email: biotecnkr@gmail.com) : Enzyme-substrate interaction based approach for screening electroactive microorganisms for microbial fuel cell applications. Indian J chem Technol 2017, 24(1), 93-6.

Alcohol dehydrogenase (ADH) of A. aceti is one of the potential enzyme for biological fuel cell applications. The modeled structure of ADH of A. aceti and its validation has been reported. The docking investigations have been made to assess the catalytic activity of the modeled ADH. The experimental results show that the modeled ADH of A. aceti has lowest binding affinity to its substrate when compared with the ADH structures of few other microorganisms. It indicates that the ADH of A. aceti has higher catalytic activity and better electrogenic activity. This study documents a computational procedure for screening electroactive microorganisms for biological fuel cell applications.

3 illus, 2 tables, 28 ref

008042   Narendiran A;Akhila K;Bindu B (Electrical Engineering Dep, Indian Institute of Technology Madras, Chennai) : Physics-based model of double-gate tunnel FET for circuit cimulation. IETE J Res 2016, 62(3), 387-93.

Tunnel FETs (TFETs) having better ON-OFF switching performance is an alternative nano-device that replaces MOSFET (metal oxide field effect transistor) in low-power VLSI (very large scale integration) circuits. The physics-based models of TFETs are essential to integrate with circuit simulators for design and optimization of TFET-based circuits. There is no built-in TFET model available in any commercial circuit simulators. This paper presents the development of an accurate physics-based model for double-gate TFET and its integration in Cadence circuit simulator SPECTRE. The model captures all device physics and is evaluated for various device parameters such as channel length, oxide thickness, and high-k dielectrics and validated with results from TCAD (Technology Computer Aided Design) Sentaurus. The integrated model is used to develop digital libraries of logic gates and adders. These digital libraries can be used to design TFET-based VLSI circuits. This method of integration using physics-based model of TFET, compared to look-up table approach which is purely data-driven, gives flexibility to circuit designers to design TFET-based low-power circuits taking into account the dependence on bias, temperature, scaling, and other process parameters.

6 illus, 21 ref

008041   Nandagopal G M S;Antony R;Rakesh A K O; Selvaraju N (Chemical Engineering Dep, National Institute of Technology Calicut, Kozhikode-673 601, Email: selvaraju@nitc.ac.in) : Conservation level set simulation of droplet formation in a circular T and Y junction microchannel. J scient ind Res 2016, 75(12), 730-4.

Conservative two-phase level set simulations of the droplet formation in a T-junction circular microchannel of aqueous droplets in an oil based continuous phase have been carried out. Detailed understanding of the physical processes affecting droplet formation is desirable. The particular focus of this study was to examine the effects of wettability, surface tension, flow rate ratio, channel diameter and channel geometry on droplet formation. From the simulated results it was observed that, when the contact angle is increased from 35° 170°, droplet diameter increased gradually for T and Y junction microchannel. Diameter of droplet decreased when the flow rate ratio (Qo/Qw) is increased. When the geometry of the microchannel is altered, rectangular microchannel has found to produce elongated droplets than the square and circular microchannels. While, circular microchannels generated smaller droplet diameter when compared to the square and rectangular microchannels. When the interfacial tension was increased from 1e-3 N/m to 8e-3 N/m the droplet diameter also increased for T and Y Junction microchannel. And, when the diameter of microchannel is decreased from 120 μm to 40 μm there was a decrease in droplet diameter for both T and Y junction microchannels.

2 illus, 18 ref

008040   Nali D K;Sreeram G S (NO, , ) : Wireless digital fuel level indicator. J Elect Des Technol 2016, 7(2), 41-6.

In days gone by the petrol level measurement is done by analog meters. It consists of determining the quantity of petrol in the tank at different levels but not accurately. This paper is aimed to design a system to monitor and display the petrol level by using Ultra sonic sensor and a controller. Two different tanks shapes Square, Cylindrical are chosen for the design and measurement purpose. The controller performs the specified task, i.e., displaying the petrol level and the distance vehicle can travel. Vehicles like motorcycles, cars, buses and trucks and equipment such as compressors, generators needs a means of refueling so that it can run to the destination as efficiently as possible. If the equipment is built in with the digital petrol indicator to know how much fuel is left over to reach the destination, and also to know how much fuel to be stored for the safe and secure journey.

008039   Nakum A;Joshi J H (NO, , ) : Enhance approach to mitigate the impact of black hole and gray hole attacks in AODV routing protocol. J Netwk Secur 2016, 4(2), 9-16.

Wireless network has become more and more popular during the past decades. A mobile ad hoc network (MANET) is integrating of mobile nodes, in which the packets are forwarded without any centralized network authority. The devices are connected via wireless medium. Due to this, characteristic security is high risk because packets are easily trapped in the network. There is no pledge of attack free communication due to heterogeneity in the network. Ad hoc on demand vector (AODV) is a reactive routing protocol in MANET. This is a typical MANET protocol, so malicious node tries to attack on this protocol. The operation of AODV is loop-free, and by avoiding the counting to infinity, difficulty offers quick junction when the ad hoc network topology changes. In this paper, we propose a friend-ship value based detection algorithm which aims to detect malicious nodes. We have proposed an approach for securing AODV against black hole attack as well as gray hole attack. This approach also prevents and detects black hole/gray hole node or malicious nodes in the network. The proposed algorithm identifies malicious nodes as well as improves the performance parameter using NS-2.35 simulator.

008038   Muthulakshmi S;Dhanasekaran R (EEE Dep, Syed Ammal Engineering College, Ramanathapuram, Tamil Nadu, Email: key3_sss@rediffmail.com) : Speed control of switched reluctance motor using soft computing technique for industrial applications. J scient ind Res 2016, 75(5), 285-8.

This paper presents a new converter for switched reluctance motor for controlling the speed using soft computing technique like Fuzzy Logic Controller (FLC). The operating modes of proposed converter circuit are discussed. The proposed converter is capable of minimizing the torque ripple because of its faster excitation and demagnetization nature and also improving the average torque when compared to the conventional converter circuit. Fuzzy Logic Controller has becoming an important methodology in control engineering. The FLC has fast response, easily modified, cheaper to implement and does not require any mathematical modeling, perfect speed tracking with no peak overshoot compared to the conventional controller. The objective of this paper is to achieve a desired speed response with effective controller. The effectiveness of the proposed system is verified by using simulation. The simulation results are carried out by using MATLAB/SIMULINK and the corresponding results are presented.

3 illus, 2 tables, 13 ref

008037   Murugesan C;Rudramoorthy R (Aquasub Engineering, Thudiyalur Post, Coimbatore-641 034, Email: cmurugesan1960@yahoo.co.in) : Experimental and numerical study of efficiency improvement by surface coating on the impellers and diffusers of mixed flow submersible borewell pumps. J scient ind Res 2016, 75(5), 300-5.

This study focuses on the effect of surface coating on the impellers and diffusers in improving the efficiency of mixed flow submersible borewell pumps. It consists of two parts. In the first part, a 3 stage pump was constructed with uncoated bronze impellers and cast iron diffusers having a surface roughness value of 2.5μm Ra and tested for pump performance. Then the same 3 stage pump was tested with impellers, diffusers coated with a polymeric coating having a surface roughness of 0.2μm Ra and ceramic enamel having a surface roughness of 0.8μm Ra. Experimental results showed considerable improvement, upto 4.5% in pump efficiency. In the second part, performance of the 3 stage pump was simulated using CFD tool Ansys Fluent for a surface roughness of 2.5μm Ra in the cast iron diffuser passage and bronze impeller passage. The same model was simulated with reduced surface roughness values viz. 0.2μm Ra surface roughness of polymeric coating and 0.8μm Ra surface roughness of ceramic enamel coating. The pressure and velocity distributions were analysed and input power calculations were made. Simulation results also show that the pump efficiency has improved and found matching with experimental results.

4 illus, 1 table, 12 ref

008036   Mudoi R;Subadar R (NO, , ) : Outage probability of TAS/MRC systems over Nakagami-M fading channels with correlation. J Elect Des Technol 2016, 7(1), 39-45.

This paper analyzes the outage probability of a multiple-input multiple-output (MIMO) transmit antenna selection with a maximal ratio combining (TAS/MRC) system considering equal and exponential correlation among the input branches of MRC receiver. In TAS/MRC system the transmitter selects the best antenna out of the total transmit antennas based on the channel state information (CSI) of each user. A closed form expression has been derived for outage probability considering Nakagami-m fading channels. Also, effect of correlation on the outage probability has been studied. It has been observed that outage performance degrades with increase in correlation for both the cases.

008035   Mirzaee R F;Jasemi M;Valizadeh A;Bagherzadeh N (Computer Engineering Dep, Shahr-e-Qods Branch, Islamic Azad Univ, Tehran, Iran) : On the design of fully symmetrical bridge-style circuits. IETE J Res 2016, 62(3), 394-401.

This paper deals with the bridge-style circuits. They are highly efficient in terms of transistor density per unit of area. They comply with the conventional CMOS style and form a full-swing and robust structure. First, we clarify the necessary conditions under which a Boolean function can be implemented fully symmetrical. Then, it is demonstrated that it is possible to design 2^{2n-1 out of 22n functions fully symmetrical. Eventually, we show how the pull-up and pull-down networks are constructed in a bridge circuit for any three-input function which fulfils the conditions of being implemented fully symmetrical.}

8 illus, 2 tables, 9 ref

008034   Mirzaee A M;Sardroud J M (NO, , ) : Applications of artificial neural network in construction engineering and management: An academic literature reviesw and direction for future research. J Constr Engng Technol Mgmt 2016, 6(1), 24-38.

One of the artificial intelligence topics is artificial neural network in which data processing system is the idea of the human brain. The cause of processing data is many processors that treat in parallel form in order to solve the problem. The applications of artificial neural network with neuron model and different network architecture can be used to estimate, predict and modelling of complex problems in construction management. In order to bridge the gap between researchers and practitioners, this paper aims to summarise available information related to the applications of artificial neural network in construction. Literature related to artificial neural network that has been published in top quality journals from 1989 to 2014 have been reviewed and classified. Finally, suggestions have been provided in the field of construction engineering and management for further research.

008033   Mbihi J;Kom C H;Nneme L (NO, , ) : Suboptimal nonlinear duty-cycle modulation scheme. J Elect Des Technol 2016, 7(1), 22-31.

The DCM (duty-cycle modulation) technique is increasingly used in industrial electronics applications, including instrumentation systems, interfacing drivers and signal transmission chains. However, in existing research works related to new applications of DCM technique, the linear approximation policy is used for the sake of structural simplicity and low implementation cost, at the expends of rigorous analysis and low approximation errors. In this paper, a suboptimal nonlinear DCM scheme is developed. It is founded on a global least square cubic fitting model of the intractable original nonlinear duty-cycle structure. The simpler nonlinear demodulation model obtained consists of a single linear low-pass filter, which is connected in series to a static amplifier with cubic input-output characteristic. The novelty of this paper results from a suboptimal tradeoff, between a simplified model of the DCM scheme and the mean square approximation error. The virtual simulation results obtained under a variety of modulating inputs with arbitrary waveforms have shown the effectiveness of the proposed suboptimal DCM architecture. Compared to a linear approximation technique, the suboptimal cubic scheme provides higher performances, including SSE (statistics sum of error), MSE (mean square error), THD (total harmonics distortions), SINAD (signal-to-noise distortion ratio), and SFDR (spurious free dynamic range). Therefore, the proposed suboptimal DCM architecture might be used to solve a variety of signal processing problems in industrial electronics.

008032   Manimaran P;Karthik Kumar C;Bharanirajan R; Premnath I (NO, , ) : Investigations on mechanical properties of AL 8011 reinforced with micro B4C/Red mud by stir casting method. J Elect Des Technol 2016, 7(1), 32-8.

Aluminium metal matrix composites are emerging as the most versatile material for unique automotive, aviation, aerospace, defense, marine applications and other structural applications due to their excellent mixture of properties. In the present investigation, a hybrid composite of Al8011 aluminium alloy reinforced with B4C and red mud was fabricated by stir casting method. Red mud is one of the major waste material extracted from the bauxite ore of alumina during Bayer's process. Red mud is considered as a dangerous material according to the brazillian standard NBR 10004/2004, which is being worked under room condition as a reinforcement with aluminium metal matrix. The samples were casted by varying the proportions in weight percentage by stir casting route. The samples are subjected to tensile, compression, hardness test and its micro structures observed.

008031   Mandal A;Mishra R;Kaushik B K;Rizvi N Z (School of Information and Communication Technology, Gautam Buddha Univ, Greater Noida) : Design of LMS adaptive radar detector for non-homogeneous interferences. IETE Tech Rev 2016, 33(3), 269-79.

The recent years have seen an unprecedented increase in the demand for superior performance of radar signal processor. The main challenge in a radar system is to maintain the probability of a false alarm rate constant even under an uncertain time-varying clutter environment. The objective of this paper is to develop a method for enhanced clutter/interference suppression by redesigning the radar detector in such a way to emphasize the target response and de-emphasize the clutter response. To achieve this, we have proposed a hardware architecture that implements least mean square algorithm-based adaptive filter along with a constant false alarm rate (CFAR) technique for the purpose of better detection of target under a non-homogeneous clutter environment. An adaptive design of the CFAR-filter technique has been used to improve probability of detection by increasing signal-to-noise ratio. The efficacy of the proposed architecture is corroborated with MATLAB simulations and hardware synthesis.

11 illus, 4 tables, 32 ref

008030   Luye A K;Thomas G;Jose R;Rosmin K M;Jose S; Bose S;Subhash T D (NO, , ) : Conversion of IPv₄ to IPv6 network with performance concerns. J Netwk Secur 2016, 4(2), 17-26.

Due to the increasing number of hosts throughout the world, the internet service providers are rolling out from IPv4 to IPv6 network. Internet cannot grow without the ISP technology. In infrastructure the network has very important role since it has the ability to control the packets that can be passed. This functionality is usually implemented an access control list (ACL) with in a router. ACLs are created from rules that define the action to be taken for any packet, this is tested and matched averse to it. If a match is made on a particular rule then the packet is either permitted to be evaluated or not true and no other rules are evaluated. This paper looks in to the effect on the slow down through a router when ACLs are implemented using an IPv6 addressing scheme. With the increase in the bandwidth of networks, the delays through networking apparatus can become significant and so, this is the main area of research. A comparison is made with alike ACLs implemented in an IPv4 and IPv6 network. More number of tests are performed in the same way using an IPv6-IPv4-IPv6 tunnel to compare the delays with the preceding results. To avoid the uncertainties related to the internet a set of experiments was conducted on a laboratory network ensuring that the comparisons are consistent.

008029   Lawrence E E;Latha R (NO, , ) : Game theory approach to enhance routing and security in MANET. J Netwk Secur 2016, 4(2), 1-8.

Mobile ad hoc network (MANET) is a collection of mobile nodes, which forms a temporary network without the aid of centralized administration. To create and maintain communication between nodes, the nodes dynamically establish paths among one another. The nature and structure of such networks makes it attractive to various types of attackers. Security in ad-hoc network is an essential component for basic network functions like packet forwarding and routing. These network operations become vulnerable if counter measures are not embedded into basic network functions at the early stages of their design. Many conventional security solutions used for wired networks are ineffective and inefficient for the highly dynamic and resource-constrained environments where the use of ad-hoc might be expected. In this paper, we propose a game theory approach that enhances the routing and security in MANET.

008028   Kushwaha M;Prasad B;Chatterjee A K (Electronics and Communication Engineering Dep, Thapar Univ, Patiala) : Gate tunnelling current model for nanoscale MOSFETs with varying surface potential. IETE J Res 2016, 62(3), 347-55.

At nanoscale, the channel of metal oxide semiconductor field effect transistors (MOSFETs) acts like a potential well within which electron energy levels are quantized and a nonzero wavefunction is obtained at the oxide-semiconductor interface. As a result the gate tunnelling current has emerged a significant constraint in respect of scaling of ultrathin gate oxides. We have developed an analytical model considering varying surface potential with applied voltage for evaluating gate tunnelling current through thin dielectrics in nanoscale MOSFETs. The electron wavefunction has been calculated by treating the band profile in the channel as a triangular potential well. The tunnelling probability through the gate oxide has been evaluated using Jeffreys-Wentzel-Kramers-Brillouin approximation method. The tunnelling current density is estimated from the evaluated interface wavefunction along with the tunnelling probability. The results from the present model compare well with the published Mondal-Dutta model and the experimental data. The novelty of the present model lies in its simplicity and its analyticity requiring much less computational efforts for its implementation.

9 illus, 1 table, 31 ref

008027   Kumar V;Kothari R;Pathak V V;Tyagi S K (Bioenergy and Wastewater Treatment Lab, Environmental Science, Babasaheb Bhimrao Ambedkar Univ, Lucknow-226 025, Email: kothariricha21@gmail.com) : Optimization of simple sugars and process pH for effective biohydrogen production using Enterobacter aerogens: An experimental study. J scient ind Res 2016, 75(10), 626-31.

This communication presents the potential of process parameters including simple sugars and pH for biohydrogen production using facultative anaerobic bacteria Enterobacter aerogens. The obtained data was fit in the modified Gompertz equation and the regression coefficient (R^{2) was found in the range of 0.998 which provides a strong correlation between the experimental data and the curve fit. The study revealed that glucose is the most compatible and cost effective substrate for biohydrogen production having yield of 0.87mol H₂/mol of glucose consumed. It is also found that there is a strong possibility to use sugar based organic residues from industrial substrates and wastewater for clean energy products which are cost effective and environmental friendly.}

3 illus, 1 table, 33 ref

008026   Kumar R;Pant B D;Maji S (NO, CSIR-National Physical Laboratory, New Delhi, Email: smaji@dce.ac.in) : Design, development and meterological characterization of a force transducer. J scient ind Res 2016, 75(5), 320-1.

The present paper discusses the design and development of a force transducer. The force transducer has been developed for a nominal capacity of 5 kN and strain gauges have been applied at suitable locations over it to form a Wheatstone bridge. The force transducer has been metrologically investigated according to the standard calibration procedures based on standards ISO 376-2011.

1 illus, 1 table, 6 ref

008025   Kulturel Y;Tarhan S (Tokat Technical Sciences Vocational School, Machine Program, Gaziosmanpasa Univ Tokat, 60250, Turkey, Email: sefatarhan@hotmail.com) : Performance of a solar distillery of essential oils with compound parabolic solar collectors. J scient ind Res 2016, 75(11), 691-6.

The performances of a new solar distillery of essential oils with CPCs were determined for different ambient and working conditions. The essential oil distillation system was composed of seven compound parabolic solar collectors and a distillation unit. The heat transfer oil heated by CPCs was pumped to the distillation unit by a circulation pump. Eleven essential oil distillation trials were carried out in July, August and September. In some trials, compound parabolic reflectors were covered by a black fabric sheet to observe the effectiveness of solar concentration. CPC reflectors increased the total solar radiation coming onto the surface of absorber by 3.55 times on the average. When solar radiation was concentrated and the sky was without clouds, 78-80% of the total energy need of essential oil distillation was supplied from solar energy. The total solar radiation coming on the collector ranged from 23.20 kWh to 26.90 kWh in the trials. However, the occurrence of clouding during daytime required partly electrical heating to complete the distillation process. When the solar radiation was not concentrated, the distillation water could not boil without an electrical heater. 26 to 40 ml essential oils were extracted from 5 kg mint plants per day.

3 illus, 3 tables, 14 ref

008024   Kulkarni A;Mishra A (NO, , ) : Oceanic temperature gradient as an alternative energy source. J Alternate Energy Sour Technol 2016, 7(3), 1-6.

World is facing an energy crunch. To respond to the global warming, we either need a supply that has no carbon release or we need to find means to consume less energy. As the supply of non-renewable energy resources is depleting, there is a demand for new energy technologies. Oceans cover almost 70% of the earth's surface, making them world's largest solar collector. This paper discusses a new technological approach of generating electricity indirectly from solar energy by making use of the temperature difference between the sun-warmed surface of tropical ocean and the colder deep water. Being a completely natural form of energy, the electricity produced will be inexhaustible and green. The paper elaborates on the principle and working of an oceanic thermal plant in details, mentioning its easy adaptability in the current energy cycle and the drawbacks which are coupled along with it.

008023   Kotebavi V;Shetty D;Sahu D (Mechanical Engineering Dep, School of Engineering, Amrita Vishwa Vidyapeetham, Kasavanahalli, Bengalouru-560 035, Email: s_debjyoti@blr.amrita.edu) : Performance and emission characteristics of a CI engine run on waste cooking oil-diesel blends. Pollut Res 2016, 35(1), 159-66.

Biofuels have the potential to partially replace the conventional liquid fuels as a blend used in the IC engines. Apart from several non-edible vegetable oils, waste cooking oil can also be used to produce biodiesel after simple esterification. Potassium hydroxide (KOH) and Sodium hydroxide (NaOH) are used here as reagents in the esterification of waste cooking oil. The biodiesel blends are prepared in different proportions of waste cooking oil methyl ester (WCOME) and the physical properties of these blends are studied. In this work experimental runs are carried out with different biodiesel blends (0-40%) to evaluate the performance and emission characteristics of a single cylinder CI engine. A minor decrease in thermal efficiency is observed while increasing the quantity of waste cooking oil methyl ester (WCOME) in the blend. However, a considerable improvement in reduction of smoke, carbon monoxide (CO) and unburnt hydrocarbons (HC) emission are observed compared to diesel when blended with 20% WCOME. Emissions of CO and unburnt HC decrease upto 7%. Among all the blends least oxides of nitrogen (NOx) emission happens with 30% waste cooking oil methyl ester.

10 illus, 1 table, 15 ref

008022   Koli M;Bhuriya V (NO, , ) : Survey on voltage stability. J Elect Des Technol 2016, 7(3), 35-40.

Power quality has a vital role lately beacuse of the impact on electricity suppliers, equipment manufacturers and customers. Power quality is described as the variation of current, voltage and frequency in a power system. It mentions to an extensive type of electromagnetic [EMI] phenomena which describes the current and voltage at a given time and at a given locality in the power system. Currently, there are several industries exploiting technology for processing units and manufacturing. This technology needs higher quality and consistency of power supply device. The industries like equipments of manufacturing units, semiconductors, computers, etc. are very sensitive to the changes of quality in power supply. Power quality (PQ) difficulties encompass a extensive range of disturbances network such as impulse transient, voltage, harmonics distortion, sags/swells, flicker, and interruptions. Voltage swells/sags can happen mainly than dissimilar PQ phenomenon. These voltage swells/sags are essentially the most undesired power problems in the vigor distribution network. The objective and scope of this paper is the study of power quality (PQ) occurrence in distribution systems.

008021   Khan A K;Mahanta H J (NO, , ) : Examining the effects of MIST in RSA and CRT-RSA to resist power analysis attacks. J Netwk Secur 2016, 4(3), 11-22.

The need of security has turned into a vital area of research in domain of computer science. The evolution of side channel attacks has challenged the vulnerability of almost all the symmetric and asymmetric cryptographic techniques available worldwide. This has raised the urgency in designing mitigation techniques against such volatile attacks. Power analysis attacks, which is the most popular side channel attacks has proved to be a challenge for most of the common cryptosystems like AES, DES, RSA, ECC, etc. MIST is an algorithm which was designed for computing exponentiation. As the most important operation of RSA is the modular exponentiation for encryption and decryption, MIST can play an important role in designing modified RSA to resist power analysis attacks. We have extended our work CRT-RSA, which is more widely used in computation. The analysis results shows that modified RSA can perform better in computing RSA specially when CRT is has been used.