A Novel Design on Uniform Heating Wire Coil of Induction Cooker

2014 ◽  
Vol 496-500 ◽  
pp. 1044-1047 ◽  
Author(s):  
Jia Xiong Zhu ◽  
Qiang Tong

In this paper, based on the principle of induction heating and eddy current fields working, the equivalent circuit model of induction cooker heating was proposed and analyzed. By using the finite element numerical analysis software, the optimization design and model simulations of induction cooker were implemented. Finally, a new design of induction cooker with the uniform heating-coil was proposed, and the magnetic circuit modeling and simulation of new type induction cooker heating was carried out, the eddy current loss density distribution in the common wire coil and the improved wire coil was separately calculated and compared. The results shown the new wire coil had higher energy efficiency and more uniform heating characteristics, which provided a reference for the future optimization design and development of induction cooker.

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 907-912
Author(s):  
Deepika Masurkar ◽  
Priyanka Jaiswal

Recently at the end of 2019, a new disease was found in Wuhan, China. This disease was diagnosed to be caused by a new type of coronavirus and affected almost the whole world. Chinese researchers named this novel virus as 2019-nCov or Wuhan-coronavirus. However, to avoid misunderstanding the World Health Organization noises it as COVID-19 virus when interacting with the media COVID-19 is new globally as well as in India. This has disturbed peoples mind. There are various rumours about the coronavirus in Indian society which causes panic in peoples mind. It is the need of society to know myths and facts about coronavirus to reduce the panic and take the proper precautionary actions for our safety against the coronavirus. Thus this article aims to bust myths and present the facts to the common people. We need to verify myths spreading through social media and keep our self-ready with facts so that we can protect our self in a better way. People must prevent COVID 19 at a personal level. Appropriate action in individual communities and countries can benefit the entire world.


Author(s):  
Zhang Hong ◽  
Wei-qing Cao ◽  
Ting Li Yang ◽  
Jin Kui Chu

Abstract This paper is the second of a series of two papers which designed a new type of load balancing mechanisms for planetary gearings with arbitrary number of planets. In this paper the common expression of the non-uniform load share factor was deduced, and a function parameter:force-arm factor and their solution was given. That makes it possible that the dimensions and the ability of load equilibrium of Multi-Link Load Balancing Mechanisms can be determined. The criteria of optimum load balancing Mechanisms selection were set up with consider of the effects of turning pair clearances, and optimum mechanisms were selected among the 15 candidates obtained in Part 1. Finally, it was demonstrated that the optimum multi-link load balancing mechanisms for arbitrary number of planets had the similar topological structures and same function and performence of load equilibrium.


2021 ◽  
pp. 136943322110509
Author(s):  
Zhiguo Shi ◽  
Cheng Ning Loong ◽  
Jiazeng Shan

This study proposes an equivalent circuit model to simulate the mechanical behavior and frequency-dependent characteristic of eddy current (EC) damping, with the validations from multi-physics finite element (FE) modeling and dynamic testing. The equivalent circuit model is first presented with a theoretical expression of the EC damping force. Then, the transient analysis with an ANSYS-based FE model of an EC damper is performed. The time-history forces from the FE model are compared with that from the proposed equivalent circuit model. The favorable agreement indicates that the proposed model can simulate the nonlinear behavior of EC damping under different excitation scenarios. A noncontact and friction-free planar EC damper is designed, and its dynamic behavior is measured by employing shake table testing. The experimental observations can be reproduced by the proposed equivalent circuit model with reasonable accuracy and reliability. The proposed equivalent circuit model is compared with the classical viscous model and the higher-order fractional model using a complex EC damper simulated in ANSYS to show the advantages of the proposed model regarding model simplicity and prediction accuracy. A single-degree-of-freedom (SDOF) structure with different EC damping models is further analyzed to illustrate the need for accurate EC damping modeling.


2021 ◽  
Vol 16 (5) ◽  
pp. 773-780
Author(s):  
Bing-Jie Li ◽  
Zhen-Song Li ◽  
Yan-Ping Zhao ◽  
Zheng-Wang Li ◽  
Min Miao

The signal integrity (SI) analysis of a high-speed signal interconnect channel composed of through silicon vias (TSVs) and horizontal re-distribution layers (RDL) is carried out, and the problems of SI, such as transmission loss, crosstalk and coupling effect in the transmission channel, are analyzed and studied. These signal integrity issues are considered in this paper, a signal interconnect channel model is proposed and the equivalent circuit model is deduced as well. Compared with the traditional one, this interconnect channel model has better performance in SI. Further sweep frequency analysis is carried out for different material parameters to achieve signal transmission performance optimization aimed at this model. Test samples of the proposed signal interconnect channel model are designed and fabricated according to the process index, and measured to verify the actual transmission performance. The design and optimization rule of high-speed signal interconnect channel are summarized which proved that the proposed structure has more advantages in signal transmission performance, and has important guiding significance for practical design.


Author(s):  
W. J. Xie ◽  
L. Zhang ◽  
H. P. Chen

Abstract. GlobeLand30 update data is one of the important products of the Construction Maintenance and Update of Geographic Information Resources Project (hereinafter referred to as the Update Project). It provides important basic information for national geographical conditions monitoring, eco-environmental assessment and global geographic information integrated services. Different from the land cover classification data in National Geoinformation Surveying and Monitoring Project, GlobeLand30 update data is a completely new type of scientific research outcomes with new setup of resolution, its data format and data structure are newly set according to the requirements of the Update Project. Therefore, current inspecting methods are of limitations and incompatibility and cannot be firmly reasonable for inspecting the accuracy of GlobeLand30 update data. Combining with the practice of quality control for the Update Project, this paper proposes a set of methods and processes for the quality inspection of the GlobeLand30 update data. It also summarizes the key points of its inspection and analyses the common errors found in the actual inspection practice of the Update Project from 2017 to 2018. It can provide a certain technical reference for the quality control and quality improvement of GlobeLand30 update data in the Update Project.


2021 ◽  
Vol 10 (2) ◽  
pp. 257-274
Author(s):  
Nofrida Panjaitan ◽  
Joko Adianto

The spread of pneumonia cases caused by a new type of Coronavirus (Novel Coronavirus) SARS Cov-2 was established by WHO called Coronavirus Disease 2019 (COVID-19) on February 2020 and designated as a pandemic on March 11, 2020. However, an interesting phenomenon arises, despite the high number of COVID-19 spread in Jakarta. That is as of April 10, 2020, 50 out of 267 urban villages in Jakarta are declared free of COVID-19 (not infected with the virus) and one of them is the most populous village in Jakarta called the most densely populated urban village in Southeast Asia, namely Kalianyar in Tambora Sub District, West Jakarta.This study aims to find out how does Kalianyar combat the spread of COVID-19, recalling that considering the nature of the virus transmission, Kalianyar has high potential to be a vulnerable zone. The research was conducted through a qualitative analysis on a case study of Kalianyar aiming to examine the deep explanation and understanding of distinctive implementation and to obtain the lesson learned from the implementation of Fournier's idea seeing how the common process occurs. The common process occurring within social organization in Kalianyar shows that there are relational and reciprocal relationships resulting from each activity related to the three axes as suggested by Fournier.


Author(s):  
Hromko T.V.

Purpose. The article considers methodological problems of mono-verbal ideographic dictionary as a separate lexicographic set of dialectal usus, built on the onomasiological principle, on the semantic relations of words from the concept to its lexical counterparts. By typology, ideographic and explanatory dictionaries are complementary, which determines the equipolent connection of the ideographic dictionary with the thesaurus of a separate language system. Methods. The monophonic ideographic dictionary proposed by the author offers a methodology for developing an ideographic dictionary of speech on a purely linguistic basis, in the direction “from the core to the periphery”, because the lexical structure of the idiom, in contrast to the common language, is narrowly accessible for speakers of the literary idiom and widely available for scientific interpretation of the lexicon of speech, and given the completeness of the presentation allows the use of quantitative methods. They ensure the objectivity of the obtained results and significantly reduce the time for their receipt and processing, which in the long run will provide objective results for further qualitative (qualitative) analysis – a monographic description of the language system of speech. Results. Monographic ideographic dictionary is a new type of dictionary – linguistic dialectological ideographic dictionary of scientific and linguodidactical purpose. Methodologically, its conclusion involves the stratification of vocabulary by functional, syntagmatic, paradigmatic and epidigmatic system parameters. Conclusions. Improving the method of parametric analysis for a one-word ideographic dictionary involves in the process of compiling the author of the “Ideographic Dictionary of the dialect of Pishchany Brid village of Dobrovelychkivsky district of Kirovohrad region” conducting various typological studies: continuing to collect natural dialect material, representation of the place of this lexical unit in its structure, etc., as well as ideographic lexicographic parameterization for component analysis of dialectal vocabulary, which will extrapolate the spoken material, and in the future will serve to solve a number of theoretical and practical problems of linguistics, and research will enter the linguistic picture of the world and give objective scientific results.Key words: dialectology, lexicography, monoidiom research, ideographic method, quantitative methods, qualitative analysis of vocabulary. Анотація.Мета. У статті розглядаються методологічні проблеми моноговіркового ідеографічного словника як окремого лексикографічного зводу діалектного узусу, побудованого за ономасіологічним принципом, за смисловими відношеннями слів від поняття до його лексичних відповідників. За типологією ідеографічні й тлумачні словники є взаємодоповню-вальними, що й визначає еквіполентний зв’язок ідеографічного словника з тезаурусом окремої мовної системи. Методи.Пропонований автором моноговірковий ідеографічний словник пропонує методологію розробки ідеографічного словника говірки за суто лінгвістичною основою, у напрямі «від ядра до периферії», оскільки лексичний склад ідіому, на відміну від загальномовного, є вузькодоступним для носіїв літературного ідіому і широкодоступним для наукової інтерпретації лексикону говірки, а з огляду на повноту представлення дозволяє використовувати квантитативні методи. Вони забезпечують об’єктивність отриманих результатів і значно скорочують час на їх отримання і обробку, що у перспективі дасть об’єктивні результати для подальшого квалітативного (якісного) аналізу – монографічного опису мовної системи говірки. Результати. Моноговірковий ідеографічний словник є новим типом словника – лінгвістичним діалектологічним ідеографічним словником наукового та лінгводидактичного призначення. Методологічно його укладання передбачає стратифікацію лексики за функціональним, синтагматичним, парадигматичним й епідигматичним системними параметрами. Висновки. Удосконалення методу параметричного аналізу для моноговіркового ідеографічного словника передбачає у процесі укладан-ня автором «Ідеографічного словника говірки села Піщаний Брід Добровеличківського району Кіровоградської області» проведення різного роду типологічних досліджень: продовження збирання польового діалектного матеріалу, проведення квалітативного аналізу лексики на предмет ядра й периферії мовної системи, наочного представлення того, яке місце посідає така лексична одиниця в його структурі тощо, а також ідеографічної лексикографічної параметризації для проведення компонентного аналізу діалектної лексики, що екстраполюватиме говірковий матеріал, а в перспективі прислужиться для вирішення низки теоретичних і практичних завдань лінгвістики, і проведені за ним дослідження увіллються в мовну картину світу та дадуть об’єктивні наукові результати.Ключові слова: діалектологія, лексикографія, моноговіркові дослідження, ідеографічний метод, квантитативний метод, квалітативний аналіз лексики.


2012 ◽  
Vol 588-589 ◽  
pp. 420-423
Author(s):  
Xiu Ping Wang ◽  
Feng Ge Zhang ◽  
Xiao Ping Zhu ◽  
Guang Long Jia

Brushless doubly fed machine (BDFM) has rapid progress in recent years, rotor modulation capability is still the role factor which limits the popularization and application. Rotor structure is designed derived from the common reluctance in this paper, finite element analysis(FEA) is used for the optimization of the rotor. By studying the optimization comparatively, design program of rotor structure can be obtained, which shows great feasibility in industrial and agricultural production.


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