A decay constantβof 0.98 per methylene group is measured. Electron transport propeties for n-alkanedithiol monolayers on Au(111) is investigated using conducting atomic force microscopy.

使用導(dǎo)電原子力顯微鏡方法研究了在Au(111)表面上的硫醇分子自組裝膜的電子輸運(yùn)特性欧美一区二区色视频。

The optical property of CdS nanocrystals in ZrO 2 thin film has been studied. The film was fabricated by sol gel technique. Photoluminescence and photoluminescence excitation spectra of the samples with different annealing temperature were measured. Photoluminescence decay curve of CdS nanocrystals at different annealing temperatures was studied.

研究了用溶膠凝膠方法制備的CdS超微粒/ZrO2薄膜的發(fā)光特性黄色视频国产在线，測(cè)量了不同退火溫度處理的樣品的熒光光譜国内乱人伦中文视频在线、熒光激發(fā)光譜和熒光衰減曲線的變化色色亚洲色，通過(guò)熒光衰減曲線研究了140 ps左右的CdS的帶間躍遷發(fā)射和較慢的表面態(tài)發(fā)射一级黄页电影免费在线大全。

The polarization retention is investigated and shows a stretched exponential time dependence decay law.

用EFM模式研究了電疇極化保持特性，其表面電勢(shì)差隨時(shí)間的變化遵從指數(shù)函數(shù)變化規(guī)律国产精品一线天在线观看。

Influence of dielectric loss on the transmission properties of frequency selective surfaces.

介質(zhì)損耗對(duì)頻率選擇表面?zhèn)鬏斕匦缘挠绊憽?/p>

The chemical composition, morphology, crystal microstructure, particle size, infrared spectra properties and oxidization resistance of the product were analyzed using the high-resolution transmission electron microscopy, X-ray diffractometry, transmission electron microscopy, corresponding selected-area electron diffractometry, thermogravimetric analyzer differential scanning calorimeter and Fourier transform infrared spectrum.

采用高分辨透射電子顯微鏡亚洲91av网、X射線衍射、透射電子顯微鏡、選區(qū)電子衍射亚洲欧美一区二区视频、熱重和差示掃描量熱分析儀以及傅里葉變換紅外光譜等手段對(duì)試樣的成分一级黄色片日日爱、表面組成、形貌91久久久久久一区二区、晶體結(jié)構(gòu)色黄乱婬伦免费网站耙、粒度、紅外吸收性能和氧化特性進(jìn)行了分析黄片一区二区三区。

A Fourier transform infrared spectrophotometer, a solid state Si-NMR, a scanning electron microscope, an X-ray diffractometer, a thermogravimetric analyzer and a differential calorimeter were used to measure the structural and thermal properties of the WPU/silica hybrids.

研究中使用粒徑分析儀国产在线网站、黏度儀與界面電位分析儀分析復(fù)合物乳液特性，利用傅立葉轉(zhuǎn)換紅外線光譜儀欧美日韩性生活、固態(tài)核磁共振光譜儀、表面掃描電子顯微鏡欧美插插影院、X-ray繞射光譜亚洲黄色在线观看网站、熱重量分析儀、示差掃描熱卡計(jì)探討混成復(fù)合物的結(jié)構(gòu)欧美一区二区在线网站观看蜜臀、熱性質(zhì)與結(jié)晶情形免费黄色网址直接进入，同時(shí)也利用萬(wàn)能拉力機(jī)、動(dòng)態(tài)機(jī)械熱分析儀探討混成復(fù)合物的機(jī)械性質(zhì)国际a片播放。

It combines inorganic bentonites excellent dilatability, adsorption and dispersion with huge hydrophobic area, so it has very good affinity for organic substance, has been widely used in all kinds of organic system.

由于其既具有無(wú)機(jī)膨潤(rùn)土優(yōu)良的特性欧美精品中文字幕在线视频，又具有疏水親油的巨大比表面，與有機(jī)物具有很好的親和性和相容性78摸免费人成视频在线观看，在各種有機(jī)體系中已被廣泛應(yīng)用国产AAA免费黄色视频。

The dispersibility, morphology and size of the gold powder particles greatly influence the properties of fired paste and viscosity.

金粉的分散性、表面形態(tài)和顆粒尺寸會(huì)影響漿料的燒成特性和粘度免费人成a。

Five novel torsion-mirror optical actuators including double-beam thickness differential structure with single torsional axis, double flexible folded-beam structure with single torsional axis, double-beam vertical torsion comb structure with single torsion axis, four-beam differential compound-micromirror structure with double torsional axis and the combined structure of the four basis forms above, are brought forward. All of these devices could be fabricated by the same silicon micromachining process we have developed. The deformation compensation design with local enhancement for the thin torsional beam which is the key structure of these devices is also put forward to improve the reliability. The three-dimension solid model and two-dimension reduced order model of the torsion-mirror optical actuator are established and then the numerical simulations for evaluating the device characteristics of the statics, dynamics, electrostatic field, mechanical and electrostatic coupling, fluid and solid coupling are carried out to optimize the structure design. Furthermore, three optical fibre clamping structures which could be integrated monolithicly are designed and analyzed to improve the optical coupling capability. 4. Three flexible process flows combined with bulk silicon micromachining and surface silicon micromachining are brought forward to fabricate these novel single-crystal silicon or polysilicon torsion-mirror optical actuators by using the same lithography masks for both SOI wafer and regular silicon wafer. A series of important process experiments are carried out to optimize the process parameters and the process flows. Some novel and typical process phenomena which occurred during the microfabrication are analyzed and then the corresponding solutions are put forward. 5. A MEMS dynamic testing system which exploit blur image synthetic technique, stroboscopic image matching technique, stroboscopic mirau microscopic interferometry technique and microscopic laser dopper vibrometer technique is set up to measure three-dimension and six-freedom micro motions of any MEMS devices with nanometer resolution.

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Motor unit firing rate is one of the important mechanisms to generate smooth muscle force output. This paper discusses the detection of firing rate from surface electromyographic signals, instead of the invasive needle EMG. The multichannel design is adopted to observe the spatial distribution of EMG firing pattern.

肌肉運(yùn)動(dòng)單元活化頻率是人體運(yùn)動(dòng)控制中樞調(diào)節(jié)肌肉力量輸出的主要機(jī)制之一欧美国产第页，本文主要是研究從表面肌電訊號(hào)分析活化頻率之特性日韩高清不卡福利片视频，并以多頻道記錄的方式，分析肢體動(dòng)作時(shí)活化頻率在空間之分布模式欧美VA免费播放。