RFID stands for Radio Frequency Identification. It refers to technologies that use radio waves to identify objects, animals, or people. Due to its low energy consumption and adaptability to different environments, RFID has found applications in many fields. This paper describes the basics of RFID technology, its applications, and the challenges it faces.
Energy consumption index is one of the most important criteria for judging about new, and emerging drying technologies. Electrohydrodynamic (EHD) drying is a novel method of non-thermal processing. The drying can be carried out using either AC or DC high voltages. The thermodynamic considerations regarding the lowering of temperature under EHD drying include rapid rates of evaporation and exothermic interaction of the electric field with a dielectric material. Multi-point and plate electrode systems are efficient in accelerating drying of agricultural materials.
This paper presents a review on the detailed capacitor model and it includes theoretical literature and suggestions how to measure capacitors properties at the laboratory. Theoretical part gives idea about how the capacitors work, its charging and discharging, its non-linear behaviors and capacitor types. Non-linear behaviors are presented and explained in details how to calculate them theoretically.
This work presents the steady-state performance indices of single phase induction motor, from symmetrical components of unbalanced three-phase system. The analysis of unsymmetrical fault conditions, using the method of symmetrical components, is a means of resolving an unbalanced three-phase system of impedances into three equivalent single-phase systems with independence impedance parameters.
Supplier performance evaluation and selection are multi criteria decision making problems.In supply chain, appropriate selection of vendor has become strategic problem. The decision of supplier selection is unstructured and complicated task purchasing managers of any company. Supplier evaluation process consists both quantitative and quantitative criteria.
Spectroscopic analysis was used to study the effect of the interaction of egg albumin with amantadine in SPAN-40 solution. Protein binding properties of Egg albumin-amantadine complex were investigated by fluorescence spectroscopic technique. From the fluorescence spectral data stern-volmer quenching constant and the quenching rate constant have been calculated and reported. Other constants calculated for the surfactant SPAN 40 micelle were aggregation number, radius, surface area per head group and packing parameter.
Value is a word that is used in many aspects of the world. Understanding the concept of value helps guide the professional in their daily practice as they perform their daily functions. The review of value as a concept is based on an understanding of what value is through how it is used and its defining attributes. To strengthen this understanding, a model case and a contrary case are provided to guide an application of the concept of value in different settings. To support this, antecedents, consequences, and empirical referents are discussed.
A diffusion absorption refrigerator is a heat (sun heat) powered refrigeration system. It can be operated without any use of electrical or mechanical energy. It has no moving parts. The working fluid is a three component mixture: ammonia as refrigerant, water as absorbent and helium as inert gas used to equalize the total pressure in the evaporator-absorber compartment. In the present work a model of each element in this machine is developed. The considered machine is intended to be used for air conditioning applications.
The aim of study is to determine the effect of Prediction-Observation-Explanation (POE) and inquiry based learning methods which were applied in General Physics Laboratory 1 for science Teaching 1st class pre-service teachers. The sample is composed of 55 people, 27 of them in Group 1, 28 people in Group 2, all of whom are Science Education department students receiving the course of General Physics Laboratory. The model of this study is experimental pattern without pre and post-test control group. Group 1 was applied POE method, group 2 was applied Inquiry-based Learning method.
In this thesis, the development of electrical porcelain insulators based on local clays has been investigated. The test samples were made by varying the quantities of silica and feldspar required to form a mouldable plastic body with each clay sample. The clay samples were bisque fired to 900°C and glazed before it was fired to 1250°C after air-drying. Electrical properties such as dielectric strength (breakdown voltage) were determined for each test sample that survived the high temperature.