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Design and Simulation of Speed Control of DC Motor by  Artificial Neural Network Technique

This paper proposes the artificial neural network based controller for speed control of a separately excited DC motor. The Artificial Neural Network controller allows controlling both type of systems i.e. linear and non-linear system by training the network. So it is a novel approach to study and a broad research area.

Design and Simulation of Speed Control of DC Motor by  Fuzzy Logic Technique with Matlab/Simulink

The design of intelligent control systems has become an area of intense research interest. A promising direction in the design of intelligent systems involves the use of Fuzzy logic controller to discover the abilities of intelligent control systems in utilizing experience via rule-based knowledge.

A Miniaturized Ultra Wideband (UWB) Antenna Design  for Wireless Communications

This paper presents a miniaturized planar circular disc UWB antenna design for wireless communications. Printed on a dielectric substrate and fed by 50Ω microstrip line with truncated ground plane, the proposed antenna has been demonstrated to provide an ultra wide 10dB return loss bandwidth with satisfactory radiation properties. The special structure reduces the spatial volume and it is used to realize the miniaturization of the antenna. Ansoft High Frequency structure Simulator (HFSS) software tool has been employed for obtaining the simulation results. The return loss, voltage standing wave ratio (VSWR), radiation patterns and current distributions of the antenna are discussed.

Microcontroller based Optimal Battery Charging in a  Solar-Powered Robotic Vehicle

This paper focus on the design and construction of an optimization charging system for Li–Po batteries by means of tracked solar panels. Thus, the implementation of a complete energy management system applied to a robotic vehicle. The construction of a solar tracking mechanism aimed at increasing the power regardless of its mobility. An alternative design of power system performance based on a pack of two batteries is proposed.

An Investigation into Risk Factors and Preventive  Measures in Building Construction Projects in Abu

This study is design to investigate the risk factors and preventive measures in building construction projects in Abuja FCT, Nigeria. A descriptive survey research design was adopted for the study. Two research questions and one hypothesis guided the study. The study was carried out in the entire building construction project in Abuja, Nigeria. A total of 116 respondents comprising 58 contractors and 58 registered site engineers were used as population of the study. A structured questionnaire containing sixty six (66) items was developed by the researcher and used for the study. Cronbach Alpha, Mean and Standard Deviation were used as the statistical tools to analyze the data, while t- test statistic was employed to test the null hypothesis of the study at 0.05 level of significance. The findings of the study revealed among others that contracting companies should identify and adequately quantify project risk factors.

Reduced Area & Improved Delay Module Design of 16- Bit Hamming Codec using HSPICE 22nm Technology  b

Gate diffusion input (GDI)—A new technique of lowpower digital combinatorial circuit design is described. This technique allows reducing power consumption, propagation delay, and area of digital circuits while maintaining low complexity of logic design. Performance comparison with traditional CMOS and various pass-transistor logic design techniques is presented. The different methods are compared with respect to the layout area, number of devices, delay, and power dissipation.

Plastic Injection Moldings
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Aberdeen Technologies, Inc. is certified and offers comprehensive specialty Mold Design Illinois, Plastic Injection Moldings and Surgical Instrument New York.

Assessment of allellopathic potential of some traditional  rice cultivars in Sri Lanka

Allelopathy refers to the chemical inhibition of growth of one species by another. With the objectives of understanding allelopathic effects of sixty seven traditional rice cultivars, a field experiment and laboratory experiments were carried out in 2011 Yala season at Faculty of Agriculture, University of Ruhuna, Mapalana, Sri Lanka. Rice cultivars were transplanted according to the completely randomized block design with four replicates. Each replicate consisted of three rows of rice plants and data were collected from the middle row. After three months of transplanting, plant height (cm) and number of tillers/plant, were evaluated in traditional rice cultivars and total dry matter weight of weeds in 0.093 m 2 (1ft2) area encircled by the rice plant were evaluated in three replicates. According to the statistical analysis there were significant differences in plant height and tiller number/plant in traditional rice cultivars.

HQMOULD Company Plastic Mould Maker China

HQMOULD is a expert plastic mould factory in Zhejiang which offers plastic injection molding with good style, design and structure. You can buy a variety of high excellence mould manufacturer products from HQMOULD. It has very high reputed due to their high excellent goods with extraordinary design and also their tremendous services.

Guide To Become a Freelance Mechanical Engineer

Words and job duties like instrumentation, automation, implementation, and design, play an important part in the life of a mechanical engineer. It is probably, the most pursued engineering field in developing countries like India. With the advent of newer machinery, the need for mechanical engineers only increases