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Developments in semiconductor thermoelectric materials

Laifeng LI, Zhen CHEN, Min ZHOU, Rongjin HUANG

Frontiers in Energy 2011, Volume 5, Issue 2,   Pages 125-136 doi: 10.1007/s11708-011-0150-1

Abstract: A surge in interest in developing alternative renewable energy technologies has been observed in recent years. In particular, thermoelectrics has drawn attention because thermoelectric effects enable direct conversion between thermal and electrical energy, and provide power generation and refrigeration alternatives. During the past decade, the performance of thermoelectric materials has been considerably improved; however, many challenges continue to exist. Developing thermoelectric materials with superior performance means tailoring interconnected thermoelectric physical parameters-electrical conductivities, Seebeck coefficients, and thermal conductivities for a crystalline system. The objectives of this paper are to introduce the recent developments in semiconductor thermoelectric materials, and briefly summarize the applications of such materials.

Keywords： thermoelectric materials     thermoelectric figure of merit     applications    

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Nanostructural thermoelectric materials and their performance

Kai-Xuan CHEN, Min-Shan LI, Dong-Chuan MO, Shu-Shen LYU

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 97-108 doi: 10.1007/s11708-018-0543-5

Abstract: Due to the use of nanostructural engineering, thermoelectric materials with a high figure of merit are

Keywords： nanostructural     low-dimensional     thermoelectric material     figure of merit     first-principles    

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Amethod of shadowpuppet figure modeling and animation

Xiao-fang HUANG,Shou-qian SUN,Ke-jun ZHANG,Tian-ning XU,Jian-feng WU,Bin ZHU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 5,   Pages 367-379 doi: 10.1631/FITEE.1400351

Abstract: To promote the development of the intangible cultural heritage of the world, shadow play, many studies have focused on shadow puppet modeling and interaction. Most of the shadow puppet figures are still imaginary, spread by ancients, or carved and painted by shadow puppet artists, without consideration of real dimensions or the appearance of human bodies. This study proposes an algorithm to transform 3D human models to 2D puppet figures for shadow puppets, including automatic location of feature points, automatic segmentation of 3D models, automatic extraction of 2D contours, automatic clothes matching, and animation. Experiment proves that more realistic and attractive figures and animations of the shadow puppet can be generated in real time with this algorithm.

Keywords： Shadow play     Shadow puppet figure     3D human body     Data processing     2D modeling    

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The technology of the figure of test assembling when buildingthe steel box of Xihoumen suspension big

Xu Liang ,Wang Huiping,Zhang Shengli,Qian Yexiang

Strategic Study of CAE 2010, Volume 12, Issue 7,   Pages 43-46

Abstract: To insure the vertical line figure of girder segments is right, relevant parameters should be calculated

Keywords： horizontal preframe     vertical line figure     calculate     adjust     check    

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High Resolution Earth's Gravity Field Models DQM99

Shi Pan,xia Zheren,sun Zhongmiao,li Yingchun

Strategic Study of CAE 1999, Volume 1, Issue 3,   Pages 51-55

Abstract:

The harmonic series formula of the Earth´s disturbing potential is the most extensive applicable expression for the Earth´s gravity field model. At present, the resolution of the used geopotential coefficient model is 0.5°, and the complete degree and order is 360. Since the gravity data density and precision are very different everywhere, the model accuracy isn´t uniform. The improvement of model is necessary.. The method of the regional correction with frequency weight for improving a known model is a convenient and applicable method. Based on the OSU91A and EGM96 models and regional 15´×15´ △g and 5´×5´ △g, the improved models DQM99A and DQM99B to degree 720, DQM99C and DQM99D to degree 2 160 are developed. Their accuracy comparison is presented in this paper.

Keywords： Earth's gravity field model DQM99     Earth's figure     geopotential coefficient model    

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A 9.8–30.1 GHz CMOS low-noise amplifier with a 3.2-dB noise figure using inductor- and transformer-based

Hongchen Chen, Haoshen Zhu, Liang Wu, Wenquan Che, Quan Xue,hongdoublechen@gmail.com,zhuhs@scut.edu.cn,wuliang@cuhk.edu.cn,eewqche@scut.edu.cn,eeqxue@scut.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 4,   Pages 586-598 doi: 10.1631/FITEE.2000510

Abstract: A 9.8–30.1 GHz (LNA) with a 3.2-dB minimum noise figure (NF) is presented.

Keywords： CMOS；跨导提升技术；低噪声放大器；变压器；共栅级    

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Title Author Date Type Operation

Developments in semiconductor thermoelectric materials

Laifeng LI, Zhen CHEN, Min ZHOU, Rongjin HUANG

Journal Article

Nanostructural thermoelectric materials and their performance

Kai-Xuan CHEN, Min-Shan LI, Dong-Chuan MO, Shu-Shen LYU

Journal Article

Amethod of shadowpuppet figure modeling and animation

Xiao-fang HUANG,Shou-qian SUN,Ke-jun ZHANG,Tian-ning XU,Jian-feng WU,Bin ZHU

Journal Article

The technology of the figure of test assembling when buildingthe steel box of Xihoumen suspension big

Xu Liang ,Wang Huiping,Zhang Shengli,Qian Yexiang

Journal Article

High Resolution Earth's Gravity Field Models DQM99

Shi Pan,xia Zheren,sun Zhongmiao,li Yingchun

Journal Article

A 9.8–30.1 GHz CMOS low-noise amplifier with a 3.2-dB noise figure using inductor- and transformer-based

Hongchen Chen, Haoshen Zhu, Liang Wu, Wenquan Che, Quan Xue,hongdoublechen@gmail.com,zhuhs@scut.edu.cn,wuliang@cuhk.edu.cn,eewqche@scut.edu.cn,eeqxue@scut.edu.cn

Journal Article