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Folkscanomy: A Library of Books

Folksonomy: A system of classification derived from the practice and method of collaboratively creating and managing tags to annotate and categorize content; this practice is also known as collaborative tagging, social classification, social indexing, and social tagging. Coined by Thomas Vander Wal, it is a portmanteau of folk and taxonomy.

Folkscanomy: A collection of books and text derived from the efforts of volunteers to make information as widely available as possible. Because the metadata related to these scanned books are often done outside the library or cataloging industries, finding material can be more difficult. The Folkscanomy collection attempts to add a layer of classification for easier navigation.


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Mendeley Climate Change Library
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To support vital research being carried out into climate change, Mendeley has created the Climate Change Library – a collection of over 5,000 articles published across 412 Elsevier journals in 2018 and 2019. The articles are freely available until the end of 2019 for all existing and new Mendeley users to download and read.   Reflecting the truly interdisciplinary nature of climate change research, the articles have been selected from across subject areas, including the physical,...
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International Journal of Advanced Engineering Research and Science (IJAERS)
This paper presents a review on applications of Flexible AC Transmission Systems (FACTS) controllers such as Thyristor Controlled Reactor (TCR), Thyristor Controlled Switched Reactor (TCSR), Static VAR Compensator (SVC) or Fixed Capacitor‐ Thyristor Controlled Reactor (FC‐TCR), Thyristor Controlled Series Capacitor (TCSC), Thyristor Controlled Switched Series Reactor (TSSR), Thyristor Controlled Brakening Reactor (TCBR), Thyristor Controlled Voltage Reactor (TCVR), Thyristor Controlled...
Topics: FACTS, FACTS Controllers, TCR, TSC, TCSC, SVC, TC‐PAR, SSSC, STATCOM, D‐STATCOM, UPFC, GUPFC,...
Folkscanomy: General Academic Papers
by Davoud Bagheri Dargah, Hamed Golrokhsari
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Information and Communication Technologies are rapidly expanding and have affected the businesses and the way organizations compete (Porter, 2001). ICTs have been applied in tourism industry over a number of years. Organizations adopt e-business for several reasons and perceived benefits. In this paper we first will introduce different aspects of e-tourism including benefits, threats, barriers and finally will go through the customer satisfaction factors in E-tourism. Despite the importance of...
Topics: E-tourism, Satisfaction, E-commerce, E-Marketing
The purpose of this paper is to study and compare the brand personality of Nokia and Samsung in Chinese situation for brand building reference. This paper investigated Nokia and Samsung brand personality. Results demonstrated that Nokia brand personality has four dimensions (Sureness, Reliability, Agility, Peacefulness), and Samsung has three dimensions (Competence, Sophistication, Agility). The absence of Ruggedness supports the implication of many studies that Ruggedness is a culture-specific...
Topics: Brand Personality, Brand building, Factors, Mathematical Modeling
Inordinate localized temperature rise in the power transformer causes subsequent thermal breakdown. To prescribe the limits of short-term and long-term loading capability of a transformer, it is necessary to estimate the hottest spot temperature (HST) of transformer. This paper proposes the steady state temperature distribution of the power transformer windings. Oil in the transformer is assumed nearly incompressible and oil properties such as thermal conductivity, special heat, viscosity, and...
Topics: finite difference method, hottest spot temperature, power transformer, temperature distribution
A slip measurement system was developed for agricultural 4WD tractors based on LabVIEW Software. Firstly, the principle of slip calculation was discussed. After that, the operating principle of this system was introduced, especially in assembly methods of primary sensor, hardware and software of the slip measurement system. Finally, the accuracy of this system and the slip characteristics were analyzed by some experiments. The results showed that error of this system was around 1.5%-2.7% which...
Topics: Tractor, Slip measurement, Encoder, Radar, LabVIEW
Cyclic Steam Injection (CSI) is an effective thermal recovery process, in which, several driving mechanisms define the success of the process; i.e. viscosity reduction, wettability alteration, gas expansion, etc. This process was first applied in late 1950s. Then, it has been applied world‐wide successfully to both light and heavy oil reservoirs. To increase the effectiveness of CSI, process was varied by chemical addition to steam, application of horizontal wells and introduction of...
Topics: Cyclic Steam Injection, Cyclic Steam Stimulation, Huff n’ Puff, Thermal Enhanced Oil Recovery
The contribution provides an overview of possible experiments with mobile phones in physics lessons. The focus of the article is therefore on the “mobile phone” as an experiment tool. Besides the use of mobile phones for documentation, experiments with mobile phones for analysing gravity acceleration and diffraction phenomena of infrared remote controls as well as experiments of the topic acoustics are discussed. This paper includes relevant examples of the project “N.E.T.–New Media...
Topics: Mobile Phone Applications, Physics Education, Experimental Tools, Material-Aided Situated Learning...
The Supercritical Fluid Extraction (SCFE) is gaining increasing interest in last decades because of its suitability for extraction and purification of compounds having low volatility or which are susceptible to thermal degradation. This review provides an updated overview on the applications of SCFE in recovery of bioactive compounds from fruits and vegetable wastes/by-products emphasizing the effects of various process and role process parameters on the extraction yield of these compounds. A...
Topics: Supercritical Fluid Extraction, Antioxidants, Phase Equilibrium, Mass Transfer, Modeling
Dietary mushrooms are considered as valuable health foods since they are known for rich proteinacious food, it consists of about 75 per cent proteins and are low in calories, fat, fatty acids, vitamins and minerals. Mushrooms as functional foods are used as nutrient supplements to enhance immunity in the form of tablets. Calocybe indica is an indigenous popular edible mushroom, having a variety of secondary metabolites such as phenolic compounds, terpenes and steroids possibly involved in their...
Topics: Calocybe indica, medicine, food, properties.
This document describes about designing and manufacturing of bamboo processing machine having three functions, namely; splitting, grinding and sanding bamboo surfaces. It helps to avoid a tedious and time taking manual bamboo processing. Three people can work at the same time when a need arise. It is designed considering safety factors and ergonomic considerations. The machine is robust in design having low sound, and good aesthetic so as to look attractive and durable while giving service....
Topics: Designing, Manufacturing, bamboo processing, splitting and grinding knots, all cost are in Birr...
The SPE’s Comparative Solution Projects are very recognized suites of test datasets for specific problems and the hub of conducting independent comparison of reservoir simulation from different dimensions. The first one of this kind of projects was initiated in 1981 by Aziz S Odeh in order to compare solutions to a three‐dimensional black‐oil reservoir simulation problem obtained from different participants. Later, more nine independent CSPs were led by many investigators to examine other...
Topics: Comparative Solution Project, SPE Reservoir Simulation, Case Studies, Black Oil, Compositional,...
The validity of statistical analyses applied to identify different factors in many fields depends upon the use of appropriate sample sizes, the lack of which reduces the power of the findings. However, the number of cases collected for data analysis in medical studies is generally limited, for medical, financial and other experimental reasons, and statistical tests are often carried out without power and sample size estimation. Power analysis involves several parameters, the most important of...
Topics: Frequency Data, Contingency Table, Preliminary Study, Effect Size, Statistical Power Estimation,...
Power transformer outages have a considerable economic impact on the operation of an electrical network. In order to draw maximum power from transformers and, at the same time, avoid thermal mishaps, it is essential to carefully study its thermal behavior. Furthermore, an accurate computation of the hottest spot temperature (HST) helps in a realistic estimation of the reliability and remaining life of the transformer winding insulation. This paper presents steady state temperature distribution...
Topics: Power Transformer, Layer-type Winding, Thermal Analysis, Conjugated Heat Transfer, Finite...
Folkscanomy: General Academic Papers
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This paper revisits the problem of a spinning top in a uniform gravitational field when one point on the symmetry axis is fixed in space. It is an instructive and synthetic work of which the theoretical part includes all necessary issues to formulate the full differential equations governing the general motion of the spinning top under arbitrary initial conditions. Both Euler and Lagrange formulations are discussed. Moreover, closed form analytical solutions are derived for the regular...
Topics: spinning top, symmetrical gyroscope, Euler’s equations, Lagrange’s equations.
With the advent of whatsapp, information has been spread worldwide easily. Higher learning institutions such as IIUM have been using whatsapp as a mean of communication between the students and their instructors. The use of whatsapp at IIUM has been inevitable. Despite the positive impact of whatsapp as social media to the users, it has also negative impacts on student learning such as: time consuming for student’s study time, exacerbating student’s grammar and spelling,...
Topics: Whatsapp, Malaysia, IIUM.
According to the problems of lithium battery, which has abroad application prospects, in the process of charging, by using of the constant current to constant voltage charging method, this paper designs a smart fast charging system based on the ATMEGA128 microcontroller and LTC4100 battery charging controller. The core modules of the MCU control and charging circuit are mainly designed to achieve the efficient and fast charging. During the process of charging, the system can automatically track...
Topics: Lithium Battery, Smart Charging, ATMEGA128 Microcontroller, LTC4100
Modelling and manufacturing of radar absorbing material are proposed using multilayer composite nanostructured materials and the recently introduced winning particle optimization algorithm. The study concerns tile of materials with dimensions of 0.3m×0.3m made of nanostructured composite materials, which consist on epoxy-resin and industrial grade carbon nanotube (CNTs) fillers. The industrial grade CNTs were appositely chosen for their low costs, in order to be applied in great amount to...
Topics: Radar Absorbing Materials, Evolutionary Computation, Winning Particle Optimization, Modeling,...
In this paper, Matlab/Simulink based new saturation model is proposed to investigate the transient performance of a three-phase induction machine. The model as proposed is used to predict the transient performance of three-phase induction generator under different operating conditions. Closeness of simulated results with experimental results on a test machine proves the effectiveness of the proposed model.
Topics: Modeling, Self Excited Induction Generator, Simulation, Transient Analysis
In this paper, a simple boost control with independence relation between modulation index and shoot‐through duty ratio (modified simple boost) for z‐source inverter is simulated and analysed using MATLAB/Simulink, as well as the simple boost and the maximum boost control methods. The simulation shows that the modified simple boost control, as well as the maximum boost control could utilize high modulation index to generate output voltage that requires high voltage gain. In turn, this may...
Topics: Z‐source Inverter, PWM, Control, Fuel Cell
This work investigates the result of an experimental study carried out to determine the Coefficient of performance of domestic refrigerator when a propane-butane mixture is liquefied petroleum gas (LPG) which is available and comprises 56.4% butane, 24.4%propane, and 17.2% isobutene. This paper also presented an experimental investigation of COP by the effect of changing capillary tube length, capillary tube inner diameter and capillary coil diameter on the mass flow rate of refrigerant in an...
Topics: LPG refrigerator, evaporator, zero cost refrigerators, electricity free refrigerator.
This paper presents the advantages of using Audio amplifiers-class-D which has an important role in every mobile system involving an audible sound. General power amplifiers till recently have been very inefficient, bulky and unreliable. Though Class AB amplifiers have major market share in the audio industry because of their efficiency compared to previous classes of amplifiers such as Class A and Class B, recent demand for smaller devices with longer battery life has resulted in replacement of...
Topics: Audio Amplifiers, Efficiency, Class D, Distortion, Modulation.
Study of hydraulic transients in hydropower plants especially in hydraulic turbine units with penstock is an important aspect. These transients cause large pressure and sub pressure oscillations in turbine hydraulic system. Hence these must be evaluated to avoid mechanical failure. In this paper, a turbine penstock model has been analyzed to study the effect of water hammer. Also an attempt has been made to analyze the effect of length, diameter and thickness of the penstock on water hammer....
Topics: Water Hammer, Turbine-penstock Model, Mechanical Power, Mathematical Model
With respect to single-electron transistor (SET) technology, it is possible to build neural networks with extreme low power properties. To simulate SET circuits, an electrical model has been represented. In contrast to the prescriptions in the so-called Orthodox theory of single-electronics, this model explores the discrete character of the tunnel current and conditions. In this paper a brief description of neural circuitry based tree-island structure was given and verified as a single-electron...
Topics: Single Electron Transistor, Single Electron Memory, Neural network, Orthodox Theory, MATLAB, SIMON
Bitter gourd has important role as a source of carbohydrate, proteins, vitamins, minerals and other nutrients in human diet (Ali et al., 2008) which are necessary for maintaining proper health. To assess the chemical and nutritional composition of the selected bitter gourd types in the fresh and dried form, the following parameters were determined i.e. total carbohydrate, protein, dietary fibre, moisture, β carotene, vitamin C, folic acid, calcium, phosphorus, sodium, potassium, iron,...
Topics: Momordica charantia, Bitter gourd, Fresh samples, Light green big.
In today’s computer era, people used computers for communication purposes. Gesture is one of the most powerful and severe way of communication between computer and human. Gesture Recognition is one type of non-verbal Communication using fingers, palm, face, arms etc. There are multiple techniques for recognizing the gestures. This paper presents a hand gesture interface for executing the commands using dynamic time warping technique. But it is working on only two similar length sequences...
Topics: Accelerometer, Dynamic Time Warping, Gesture Recognition, Magic Ring Sensor, Zigbee
Mixed oxide catalysts derived from MgAlLa layered double hydroxide (LDH) were prepared by co‐precipitation and calcination. They were characterized by the XRD, FT‐IR and BET techniques. Their catalytic performance was compared with the 5%K‐promoted catalyst as heterogeneous base catalysts for the transesterification of Moringa oleifera oil with methanol to produce biodiesel. At 110 °C, reaction time 6 h, methanol: oil molar ratio 30, 10 wt.% catalyst, the biodiesel with 96.1% ester...
Topics: Biodiesel, Moringa oleifera oil, Base catalyst, MgAlLaO
The study was on economics of catfish production in Anambra State of Nigeria. Structured questionnaire and oral interview were administered on sixty catfish farmers selected from the state. Percentage response was used to determine the farmers’ socioeconomic characteristics and constraints to catfish production. Semi log functional form was used to analyze the effect of farmers’ socioeconomic characteristics on their output. The profitability in catfish was determined using gross margin and...
Topics: Analysis, Catfish, Economics, Production.
In this paper a simple power factor correction PFC circuit was designed, simulated and tested for AC/DC converter which generates input current harmonics due to its non-linear characteristics. PFC was achieved through current harmonics mitigation by using PWM boost regulator. The circuit utilizes the charging and disc arching increments of boost inductor current to shape a sinusoidal input current. Inductor current was controlled by means of PWM controller. The controller accepts two feedback...
Topics: PFC Circuit, AC/DC Converter, PWM Boost Regulator
Hexamethylenetetramine or hexamine has been known for  100 years as a white chemical compound  formed  as a product of the reaction between formaldehyde and ammonia.  The utilization of hexamine has been widespread but only  universally used  in  small  quantities, mainly during  the production of explosives, and various resins. Hexamine is  produced as a powder or a 42% solution. The aim of this  paper was to  simulate  a more efficient  continuous  42%  hexamine solution...
Topics: Hexamine, Energy-Efficient Process, Waste Materia, Aqueous Solution, Utilitiese
This paper investigated the Geo-mechanical properties of Okaba Coal deposit for pillar support system in an underground mine, in which the unit weight of sandstone being the roof rock is 2 450 kg/m3, average Uniaxial Compressive Strength (UCS) value for sandstone sample is 58.65 MPa while the coal sample indicated a UCS value of 4.11 MPa. The Rock Quality Designation of sandstone sample is 76 % while that of coal is 35 %. The Rock Mass Rating (RMR) of sandstone is 74 while that of coal is 36....
Topics: Geo-mechanic, Pillar, Panel, Overburden, Roadway, Rock Quality Designation.
Power control strategies of DC Microgrid with variable generation and energy storage was presented in this paper. The DC microgrid consists of PV panel ,wind turbine, battery, dc loads and a grid–connected inverter system. In order to ensure the stability of a DC microgrid, the power flow within the DC microgrid must be balanced at all times to maintain a constant dc bus voltage. Different with the centrally control method , the droop control based on the dc-bus signalling(DBS) technique is...
Topics: DC microgrid, renewable source, power management, DC Bus Signalling
India is the second largest producer of silk in the world ,next to China, with 14.7% share in global raw silk production. Silk, considered as the queen of fibres, is proteinaceous in nature. The bulk of commercial silk is produced from the mulberry silkworm Bombyx mori. The sericulture is rural, cottage and agro-based industry of cultivating food plants, rearing silkworms, conducting silk reeling, twisting, dyeing, weaving etc. ,provides continuous employment to 6817 thousand people in India...
Topics: Sericulture industry, Employment generation, Silk, India.
Folkscanomy: General Academic Papers
by Mohammad Nizamuddin, Felix Kogan, Ramesh Dhiman, Wei Guo, Leonid Roytman
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Improved forecasting, prevention and control of epidemics are the key technical elements for malaria eradication program. The objective is to use NOAA/AVHRR environmental satellite data to produce weather seasonal forecasts for using as a proxy for predicting malaria epidemics in Tripura state, India which has one of the highest endemic of malaria cases in the country. An algorithm has been reported that uses Vegetation Health (VH) Indices (Vegetation Condition Index (VCI) and Temperature...
Topics: AVHRR, VCI, TCI, Malaria, Principal Component Regression
A novel nonaxisymmetric endwall contouring is presented to suppress corner separation and produce more uniform exit flow angle. Firstly, a design methodology of automated optimization based on a baseline cascade is put forward. Then with respect to the contoured endwall and the baseline cascade, numerical simulation is conducted in an effort to further the understanding of the effects of endwall contouring. The results demonstrate that with nonaxisymmetric endwall, the corner separation is...
Topics: Secondary Flow Loss, Nonaxisymmetric Endwall Contouring, Corner Separation
Several wind power or wind speed forecasting methods have been reported in the literature over the past few years. A brief overview and comparison of all these techniques is the main focus of the present work. This paper provides insight on the foremost forecasting techniques, associated with wind power and speed, based on numeric weather prediction (NWP), statistical approaches, ARIMA models, artificial neural network (ANN), grey models, data mining models and hybrid techniques over different...
Topics: Wind Power Forecasting, Numeric Weather Prediction, Physical And Statistical Models
Distributed generation (DG) will have a growing role in the future of the power systems. DG reduces line losses and improves system voltage profile. Many researchers have used evolutionary methods for finding the optimal DG placement. The present study indicates that placing and application of DGs by modified shuffled frog leaping algorithm (MSFLA) will reduce losses and improve voltage profile of power systems. Voltage Profile Improvement Index (VPII) and Line Loss Reduction Index (LLRI) are...
Topics: Distributed Generation (DG), Line Loss Reduction Index, Modified Shuffled Frog Leaping Algorithm...
Firstly, improvement of culture condition on phytase production  by Aspergillus  ficuum  was investigated using submerged fermentation. The four factors  studied were significantly effective on the phytase production. The optimum values for the factors were determined via response surface methodology (RSM) as: glucose, 5.23 g/100 mL; ammonium sulphate, 1.6 g/100 mL; wheat bran, 3.28 g/100 mL, and fermentation time, 198.30 h. The produced amount of phytase under these conditions was 40.21 U/...
Topics: Phytase, Aspergillus Ficuum, Packed Bed Solid-State Bioreactor, Batch Bioreactor
The horizontal Bridgman method has been used to synthesize single crystal and near stoichiometric Cu2ZnSnS4 compound from elemental Cu, Zn, Sn and S materials and Cu2ZnSnS4 thin films were deposited on glass substrates by thermal evaporation method at different substrate temperature in the range of RT to 200°C. X‐ray diffraction (XRD) results suggest that CZTS powder crystallized into kesterite structure with a high degree of crystallinity. All thin films are amorphous in structure at lower...
Topics: CZTS, Bridgman Method, Tin Films, Vacuum Evaporation
This invention is a new proposed model of peeling the garlic skins with mechanical functionality. Working with the simple and basic mechanism, this is utilising to peel the skin of garlic cloves. This device consists of components like flywheel, process unitand peeler. It reduces the time consumption and protects the hand fingers from the welfare issues like irritation in fingers and nail breakings.
Topics: Peddling unit, transmission unit (gears, etc.), bicycle mechanism, garlic peeler.
This paper presents a CMOS bandgap reference and current reference based on the resistor compensation. The proposed architecture consists of various high positive temperature coefficient (TC) resistors, a two-stage operational transconductance amplifier (OTA) and a simplified start-up circuit in 0.35-μm CMOS process. In the proposed bandgap reference and current reference, numerous compensated resistors, which have a high positive temperature coefficient (TC), are added to the parasitic n-p-n...
Topics: Bandgap Reference, Current Reference, Resistor Compensation, Temperature Coefficient, Start-up...
Folkscanomy: General Academic Papers
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This manuscript discusses the development of the thermal comfort zones, during summer and winter periods, inside vehicular cabins. This is done using two thermal modeling approaches; specifically Berkeley and Fanger computations. The limiting boundaries of the thermal comfort zone when computed by the Berkeley model is determined by the Overall thermal Sensation (OS ± 0.5), while according to Fanger model, the zone is determined by the Predicted Mean Vote index (PMV ± 0.5). The Berkeley...
Topics: Comfort Zone, Thermal Sensation, Berkeley Model, Fanger Model, Metabolic Rate, Clothing Insulation
This paper presents and describes a comprehensive and cost-effective approach to diagnose and treat the formation damage problems. The proposed approach consists of systematic steps: recognition of the immediate problem; data collection, analysis and integration; identification of the source of the formation damage problem; assessment of the formation damage; identification of the proposed treatment techniques; evaluation of all options; selection of the best stimulation technique; stimulation...
Topics: Acidizing, Formation Damage, Acidizing Operation Design, Stimulation, Matrix Acidizing, Acidizing...
Folkscanomy: General Academic Papers
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In this work, characterization of radiation beam of 137Cs source was performed for calibration and dosimetric purposes at National institute for standards (NIS). Different thickness of lead sheets was used to attenuate the beam in order to cover all scales of radiation detectors under calibration. The air Kerma rate was measured with two ion chambers PTW 30013 and M-32002 for both direct and attenuated beam respectively. Scattering contribution and beam flatness were measured and took into...
Topics: Cs-137, Calibration, Dosimetry, Scattering and Uncertainty
Guardrail, fixed to lessen the sternness of run-off-road clash, is the most frequent traffic security system found on California State Highways. Guardrail may forward a sinful vehicle and disperse force from the collision in some, but not for all cases depending on the series of events throughout the conflict. Even though guardrail is itself a permanent object, it may lessen conflict sternness in situations where it is firm that remarkable the guardrail is less severe than striking fixed...
Topics: Fencing guardrail, highway, accident, safety, collisions
Remote sensing technology has rapidly expanded for the development of diffident sectors including agriculture and allied fields. The remote sensing techniques will continue to be very important factor in the improvement of present system of acquiring agricultural data. The remote sensing provides various platforms for agricultural and animal husbandry survey. The importance of remote sensing applications to agricultural and allied sectors involve land use pattern, crop production crop yield...
Topics: Remote Sensing, Geographical Information System (GIS), Information and Communication Technology...
Nonlinear transmission lines (NLTL) that consist of coplanar waveguide periodically loaded with resonant tunnel diode are capable of shaping signal waveforms during transmission. Such system is the basis of very interesting microwave signal generation circuits and it has a lot of applications in electronics. Pspice is used to model analog to digital converter by generating short electrical pulses on a nonlinear transmission line. Nonlinear transmission line is realized as electrical lattice...
Topics: Nonlinera Transmission Line, Resonant Tunneling Diode, Signal Reshaping, Analog to Digital Converter
This paper presents the performance of a stand-alone self-excited induction generator (SEIG) under balanced/ un-balanced excitation with balanced RLC and dynamic load. Squirrel cage induction motor has been taken as a dynamic load. SEIG is driven with fixed pitch wind energy system. An approach based on three-phase induction machine model is employed to derive dynamic equations of an isolated SEIG under balanced/unbalanced conditions of excitation and balanced static and dynamic loads. The SEIG...
Topics: Dynamic induction motor load, wind turbine, balanced loads, balanced/un-balanced excitation...
This paper deals with a 3‐leg VSC (Voltage Source Converter) with a zigzag transformer as a DSTATCOM (Distribution Static Compensator) for load compensation in 3‐phase 4‐ wire distribution system using ISCT (Instantaneous Symmetrical Component Theory) based control algorithm which is modified for the voltage regulation and used with indirect current control technique. The DSTATCOM is controlled to compensate the reactive power, harmonics currents, the neutral current and balance the...
Topics: DSTATCOM, Control Algorithm, Power Quality, Nonlinear Load, Load Balancing, Harmonic Compensation,...
Nowadays multilevel inverter (MLI) technologies becomes extremely main choice in the area of high power medium voltage energy control. Although multilevel inverter has a number of advantages it has drawbacks in the layer of higher levels because of using large number of semiconductor switches. This may leads to large size and price of the inverter is very high and also increase in losses. So in order to reduce this difficulties in the new multilevel inverter is proposed to reducing the...
Topics: ijaers, Cascaded Multilevel Inverter, Harmonic Distortion, MATLAB, semiconductor switches, THD
Carry select method has deemed to be a good compromise between cost and performance in carry propagation adder design. However conventional carry select adder (CSLA) is still area consuming due to the dual ripple carry adder structure. The excessive area overhead makes conventional carry select adder (CSLA) relatively unattractive but this has been the circumvented by the use of add-one circuit. In this an area efficient modified CSLA scheme based on a new first zero detection logic is...
Topics: Ripple carry adder (RCA), Carry select adder(CSLA), Logic gates, Verilog, Adders
This experimental study is to explore the relationship of the impact crater’s shape and its projectile. In order to get a better estimation of the craters parameters, only the most clearly defined and typical crater patterns are chosen. An experiment was conducted at STRIDE (Science Technology Research Institute for Defense) to prove the relationship between impact craters shape and its projectile point of origin. One marble ball, a catapult and a basin of loose sands were used in the...
Topics: Projectile Motion, Crater Analyses, Impact Crater Shape, Projectile Point of Origin, Crater Depth,...
The consumption of probiotic functional foods, i.e. processed foods enriched with microorganisms that confer health benefits to the host, shows a progressive increase in the last decade due to changes in habits and trends of consumers attracted by the benefits of these products. Currently, the development of fruits and vegetables with probiotic content is a topic of high interest for the probiotic-food consumers as these are a popular item perceived as healthy by consumers, and issues related...
Topics: Probiotic Bacteria, Storage, Survival, Tray Dryer, Immersion, Vacuum
A delineation process for micrometer size lateral patterns of  negative photoresist, on polished silicon surfaces carrying  vertical trenches of V-shape and depth in the range of 100-200 micrometers, has been developed by integrating a  compatible positive photoresist (S1813) lithography  employing single photo mask. Arrays of V-groove patterns  of 150 micrometer depth have been delineated with HNR120  photoresist on (100) silicon surfaces for further selective  electroplating of metals....
Topics: Photolithography, Deep Trench Pattern, Microelectronics, MEMS, Micro-Inductor
In computer graphics we have many polygon filling algorithms. In this paper I review scan line polygon filling algorithms using inside-outside test, boundary fill algorithm and flood fill algorithm. Scan line filling algorithm, finds an intersection of the scan line with polygon edges and inside-outside test is used to find the inside and outside region of a polygon. Boundary fill is a recursive algorithm. This paper has a review on various polygon filling algorithms.
Topics: Polygon filling, scan line, boundary fill, computer graphics.
The elastomer properties (large deformations, damping) make their use more and more common in industries such as aerospace, automotive, construction and civil engineering or even the entertainment industry... Modeling the behavior of such materials is highly nonlinear, the nonlinearities are both geometric (due to large deformations imposed) and behavioral (behavior laws used are nonlinear). This paper presents a detailed description of the numerical implemen-tation of incompressible isotropic...
Topics: Elastomers, Hyperelasticity, Large Strain, FEM, Newton-Raphson Algorithm, Arc-Length Scheme
One of the environmental issues in most regions of Iran is the large number of bottles made from poly-ethylene terephthalate (PET) deposited in domestic wastes and landfills. Due to the high volume of these bottles, more than 1 million m3 landfill spaces are needed for disposal every year. The purpose of this experimental study was to investigate the possibility of using PET waste in asphalt concrete mixes as aggregate replacement (Plastiphalt) to reduce the environmental effects of PET...
Topics: Waste Plastic, poly-ethylene terephthalate, Plastiphalt.
Folkscanomy: General Academic Papers
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Forty five bacterial strains were isolated from contaminated textile wastewater and soil, and then isolates were screened for their ability to decolorize textile dyes from aqueous solution. Initially twenty four bacterial isolates were screened based on their ability to decolorize a wide spectrum of dyes efficiently such as Black WNN, Blue FNR, Red FN2BL, Blue RC, TURQ Blue and Diresul RDT Black dye, by a rapid microtiter plate screening method. Among all isolates, NF-23 was found to decolorize...
Topics: Biodegradation, Decolorization, Microtiter Plate, Reactive Dyes
The Solar Chimney Power Plant System (SCPPS) is a simple solar thermal power plant that is capable of converting solar energy into thermal energy in the solar collector. In the second stage, the generated thermal energy is converted into kinetic energy in the chimney and ultimately into electric energy using a combination of a wind turbine and a generator. This study is to conduct a more detailed numerical analysis of solar chimney power plant system with a curved junction. This paper...
Topics: Solar Chimney Power Plant, Heat Transfer, Curved Junction, Hyperbolic Coordinates
The paper is concerned with mechatronics approach to design and construct a working model of a “Kora‐kora” Swinging Boat Ride for educational and entertainment applications based on the study of the actual ride in an amusement park. By constructing a working model of this ride, it is possible to learn and apply mechanical, electrical and programming aspects to solve similar problems creatively. From the mechanical aspect, it clearly represents pendulum movement. From electromechanical and...
Topics: Swinging Boat, Mechatronic Approach, Working Model, Accelerometer, Embedded Controller
Vibration is one of the important factors affecting the image quality of remote sensing camera for disturbing pixel-matched storage and causing image motion. Analyzing the influence of satellite vibration on the image quality degradation of remote sensing camera will be of great importance in compensating image motion and putting forward the satellite controlling index. Modulation transfer function (MTF) is a major index to evaluate the image quality of optical image system. This paper extends...
Topics: Vibration, MTF, Two-dimensional space, Statistical moment
Single phase Cobalt doped strontium hexaferrite with  chemical formula SrCoxFe12-xO19 (0≤ x ≤1) has been prepared  by the chemical co-precipitation technique. The crystallite  size of the samples is in the range of 32–55 nm. The density  and uniformity of particle size distribution rose  with the  increase in cobalt concentration. The DC resistivity, Curie  temperature, activation energy and charge carrier  concentration of the SrCoxFe12-xO19 discs were studied.  The  DC...
Topics: Magnetic Oxides, Chemical Synthesis, Precipitation, Crystal Structure, Electrical Properties,...
Disinfection with chlorine is very popular in water and wastewater treatment because of its low cost, ability to form a residual, and its effectiveness at low concentrations. Chlorinated drinking water's chief benefit is the protection of public health through the control of waterborne diseases. It plays a paramount role in controlling pathogens in water that cause human illness, as evidenced by the virtual absence of waterborne diseases such as typhoid and cholera in developed countries. But,...
Topics: Disinfection, Water treatment plant, Public health, Residual chlorine.
A low-energy photo-Fenton process is carried out in this study to investigate the effect of pH, temperature, Fe2+ and H2O2 dosages on the decolorization of Rhodamine B dyeing wastewater. Experimental results indicate that the decolorization efficiency of Rhodamine B by UV light illumination only and UV/H2O2 (H2O2 of 30 to 90 mg/L) are insufficient. Decolorization efficiency is remarkably enhanced to more than 83% by the photo-Fenton process at pH 5.5 and the pseudo first-order kinetic rate...
Topics: Decolorization, Photo-Fenton Process, Pseudo First-order Kinetic, Rate Constants, Rhodamine B
The availability of cowpea flour for instant moi-moi (steam  cowpea paste) and akara (roasted cowpea paste) preparation  has attracted interest of researchers and industrialists. The  process involves series of unit operations which are energy  dependent. Study on energy use and conservation of these  processes will provide valuable information for commercial  producers of these product and researchers. Therefore,  estimation of energy utilization and conservation approach  was the...
Topics: Cowpea, Flour, Processing, Energy Input, Conservation Approach
Folkscanomy: General Academic Papers
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This application paper demonstrates the capabilities of multispectral remote sensing images on detecting oil spills and underwater natural oil outflows in oil potential areas. An object based method for oil spill detection using high or very high multispectral images has been developed. The method exploits the knowledge provided by the systematic photo‐interpretation of the temporal, spectral and spatial features of the high or very high resolution multispectral datasets. The developed method...
Topics: Multispectral, Hyperspectral, Oil Spills, Oil Outflow, Obia
Value engineering has become an essential concept in  majority of the public and private sector industries. Most of  the Indian companies have shown interest in adopting and  few of them have adopted the value engineering concepts  successfully. Especially in Indian industries, there has been a  lack of understanding in value engineering concepts and its  implementation among industrial practitioners. This study  discusses different critical issues pertaining to cross functi onal team...
Topics: Value Analysis (VA), Value Engineering (VE), Fast Diagram, Go Fast Workshop
Cashew gum can be obtained from the exudate released from the stem of the species "Anacardium occidentale", commonly called cashew tree, a tree typical of Brazil and subtropical countries. It is a heteropolysaccharide complex that after hydrolysis presents a high content of monosaccharides with a varied composition depending on its origin. Due to its biological origin, the ability to form gels and the fact that it has properties similar to synthetic polymers, it is a great option for...
Topics: Anacardium occidentale, cashew gum, food industry, phytotherapy, polysaccharide.
Shape Memory Alloys (SMA’s) are able to reach very large recoverable strains. They have found their means into many inventive applications including seismic structural control. Due to their recentering capability as well as damping capacity, SMA materials are favorable for use in earthquake applications. The main idea of this research is the simultaneous use of SMA elements in different phases and steel elements is structural systems, in order to utilize each favorable characteristics....
Topics: Seismic, Shape Memory Alloy, Damping, Steel Structure, Recentering
The requirement of pedal mount have become increasingly complex in recent years due to the expansion of global markets and diversification of the conditions under which vehicles are used in different parts of the world. It is also becoming increasingly important to ensure that vehicles offer adjustability, ergonomical for the driver, light weight, serviceability, secure and better braking effect which are expected by drivers, but can also provide less aggressive feel to driver while severe...
Topics: Automotive brake pedal, accelerator, Light weight, adjustable.
Ginger is an important spice crop and India is one of the leading producer and exporter of ginger in the world. Ginger is widely used around the world in food as a spice both in fresh and dried form which adds flavour to the meal by creating spicy pungent taste. The chemical components of the ginger rhizome vary considerably depending on the location of cultivation and postharvest treatments. Ginger contains polyphenol compounds such as gingerol and its derivatives like zingiberone, bisabolene,...
Topics: Ginger, novel products, scenario, appetized flakes, bars, salted ginger, crystallized ginger,...
The optical properties of bulk as well as nano CdS thin films developed by the Chemical Bath Deposition (CBD) were investigated in this paper. Results of optical Transmission, absorption, reflection spectra, optical conductance, refractive index, extension coefficient, real and imaginary dielectric constants studies are reported. The optical properties were obtained using UV-VIS Double Beam Spectrophotometer Version 6.51 in the wavelength range 200-1100 nm. The optical transmittance of the film...
Topics: Chemical bath deposition, transmittance, absorbance, reflectance, band-gap, dielectric constant,...
The cost and error of the Satellite Attitude Control System design can be minimize by using ground test simulator. However, it construction difficulties are associated with creating  zero gravity and no friction  environments.  Air bearing  simulator  provides  the  environment for investigation of satellite attitude dynamics and control problems. Large angle manoeuvre usually present highly non-linear plant and if the system parameters are not well determined the plant can also present...
Topics: SDRE Method, No Linear System, Satellite Control
In this study an Integrated Municipal Solid Waste system is improved and developed for practical application in the waste management sector. A mass, energy and environmental analysis is made taking into account the EU regulation requests and selective collection targets in the case study region. The technological solutions proposed focused on: nature and waste flow, Municipal Solid Waste heterogeneity respect to selective collection optimization, energy potential of the products, non-volatile...
Topics: Bio-drying, Eco-points, Extrusion, Gasification, MSW, Landfill, Selective Collection.