8,974 research outputs found
코어리스 교류 유도전동기
No full textDisclosed herein is a coraless AC induction motor. The motor comprises a cup type coreless rotor. A rotating shaft is combined wilh the cup type coreless rotor. An induction rod is inserted into the cup type coreless rotor to guide a magnetic flux from the stator effectively. A stator is positioned around the ccreless rotor. The cup type coreless rotor comprises a squirrel cage-shaped conduction cylinder and composite material or polymer resin. The squirrel cage-shaped conduction cylinder is made of material having high electric conductivity, such as aluminum or copper, and has plurality of slots along the axis of the squirrel cage-shaped conduction cylinder. The composite material or polymer resin fills the slots of the squirrel cage-shaped conduction cylinder to make up for the low stiffness of the squirrel cage-shaped conduction cylinder
Xiang hu zuo yong de bo se zi yu liang ge jing ge neng dai de liang zi dong li xue
No full textLau, Ho Kwan = 相互作用的玻色子於兩個晶格能帶的量子動力學 / 劉浩群.Thesis M.Phil. Chinese University of Hong Kong 2015.Includes bibliographical references (leaves 82-85).Abstracts also in Chinese.Title from PDF title page (viewed on 05, December, 2016).Lau, Ho Kwan = Xiang hu zuo yong de bo se zi yu liang ge jing ge neng dai de liang zi dong li xue / Liu Haoqun
Fe/Ge catalyzed carbon nanotube growth on HfO<sub>2</sub> for nano-sensor applications
No full textA carbon nanotube (CNT) growth process on HfO2 is reported for the first time for application in nano-sensors. The process uses a combination of Ge nanoparticles and ferric nitrate dispersion and achieves an increase in CNT density from 0.15 to 6.2 μm length/ μm2 compared with the use of ferric nitrate dispersion alone. The growth process is validated by the fabrication of back-gate CNT field-effect transistors (CNTFETs) using Al source/drain (S/D) contacts and a H2 anneal at 400 degrees C. The transistors exhibit p-FET behavior with an Ion/Ioff ratio of 105 and a steep sub-threshold slope of 130 mV/dec. These results are rather surprising, as earlier research in the literature on CNTFETs with Al S/D electrodes showed n-FET behavior. The p-FET behavior is shown to be due to the H2 anneal, which we ascribe to the smaller electron affinity of hydrogenised CNTs. Measurements of the temperature dependence of the drain current show low Schottky barrier height Al S/D contacts after a H2 anneal, which tends to confirm this explanation
Wen yi qi shou Jiang Qing tong zhi
No full text中央文革领导小组供稿; 清华附中《代代红》绘画.题名及丛书由编目者拟定.Zhong yang wen ge ling dao xiao zu gong gao; Qing hua fu zhong "Dai dai hong" hui hua.Ti ming ji cong shu you bian mu zhe ni ding
Ge Rongjin wen ji = Selected Works of Ge Rongjin
No full text"Wen ji" fen wei "Wo de xue shu chuang xin zhi lu (dai zi xu)" he "Ming dai zhu ming zhe xue jia Wang Tingxiang yan jiu"(di 1-2 juan), "Zhongguo zhe xue Fan Chou shi yan jiu" (di 3-4 juan), "Zhongguo shi xue yu Dong Ya shi xue yan jiu", "Zhongguo guan li zhe xue yan jiu" (di 5-6 juan), "Zhonguo zhe xue ji qi xian dai quan shi lun ji" (di 10-12 juan) wu da ban kua
Hyojun dai toa bunzu. 18 , Hawai shoto hen /
No full textMap of Hawaii published in Japan in 1943.; Also available in an electronic version via the internet at: http://nla.gov.au/nla.map-vn6451628. 880-04 Inset: Shinjuwan oyobi Honoruru fukin -- Hawai shoto fukin (Sandoicchi shoto). Scale 1:9,000,000.880-04 Inset: 1-MO!KB'IC!5#i%[i%Ni%ki%k!0o
Composition dependence of the physical and acousto-optic properties of transparent Ge–As–S chalcogenide glasses
No full textThree groups of Ge–As–S glasses with compositions of (I) GexAs40−xS60 (x = 25, 30, 35 at.%), (II) GexAs10S90−x (x = 25, 30, 35 at.%) and (III) Ge30AsxS70−x (x = 5, 10, 15 at.%) were studied to understand the role of glass composition in determining physical and acousto-optic properties. For each group of glasses, the glass transition temperature (Tg), micro-hardness (Hv), elastic modulus and acoustic velocity increased with the addition of Ge, and the elements that determine the magnitude of performance variation are Ge > As > S. All glass samples had optical transmission higher than 54% at 633 nm, and the level of sulfur content determined the value of the optical bandgap (Eg). The glass with the tightest network structure realized the lowest acoustic attenuation (α) of 1.49 dB/cm at 25 MHz ultrasonic frequency. Furthermore, the maximum refractive index (n = 2.482) in Ge30As15S55 glass contributed to the maximum acousto-optic figure of merit (M2) of 209.78 × 10−18 s3/g at 633 nm, which is close to 130 times greater than that of fused quart
Gui biao mian xi dai zi xuan de dan ge yuan zi huo fen zi de cao zong yi ji xing zhi
No full textLiu, Qin = 硅表面攜帶自旋的單個原子或分子的操縱以及性質 / 劉琴.Thesis Ph.D. Chinese University of Hong Kong 2014.Includes bibliographical references (leaves 132-144).Abstracts also in Chinese.Title from PDF title page (viewed on 14, November, 2016).Liu, Qin = Gui biao mian xi dai zi xuan de dan ge yuan zi huo fen zi de cao zong yi ji xing zhi / Liu Qin
Dai qiang de ren.
No full text葛一虹譯.原書名(transliterated): Chelovek s ruzh′em.三幕劇.Ge Yihong yi.Yuan shu ming (transliterated): Chelovek s ruzh′em.San mu ju
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