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同步辐射装置用户科技论文集 1998年第1期 220-223页

作者： Z.m.jiang Q.j.jia 等

RELATIONSHIP BETWEEN INFRARED RADIATION AND CRYSTAL STRUCTURE IN Fe-mn-Co-Cu-O SPINELS

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维普期刊数据库

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作者： (英)j.m.马丁

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Acta metallurgica Sinica(English Letters) 2008年第1期21卷 15-20页

作者： Y. Zhang D.j. Wen School of material Engineering Soochow University Suzhou 215021 China

Ni^3＋ and Cr^3＋ doped Fe-mn-Co-Cu-O spinels have been prepared by solid phase sintering. The valence states and distribution of transition ions in the spinel crystals are inferred by the consideration of thermodynamic principle and crystalline field theory. The mierostructure and performance of those are studied by X-ray diffraction （XRD）, Fourier transform infrared （FT-IR）, and IRE-2 infrared radiant instrument. Ni3＋ and Cr3＋ occupy the vacancies or substitute the other ions in the spinel structures and form diverse spinel structures, which exhibit infrared integral emissivities of 0.93 in the whole band, and 0. 94 in the band within 14-25μm too. The content of Fe2O3 and mnO2 in the spinel crystals changes, maybe it induces infrared radiativity of spinels differently.

关键词： Crystal structure mineral Infrared radiation property

Ferroelectric Properties and Applications of Hybrid Organic-Inorganic Perovskites

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journal of Electronic Science and Technology 2017年第4期15卷 326-332页

作者： Xin Tong Zhiming m. Wang Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu 610054 Institut National de la Recherche Scientifique Université du Québec Quebec G1K9H7 Canada Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu 610054

Hybrid organic-inorganic perovskites （e.g. CH;NH;PbI;） have attracted tremendous attention due to their promise for achieving next-generation cost-effective and high performance optoelectronic *** hybrid organic-inorganic perovskites possess excellent optical and electronic properties, including strong light absorption, high carrier abilities, optimized charge diffusion lengths, and reduced charge recombination etc., leading to their widespread applications in advanced solar energy technologies （*** efficiency perovskite solar cells）. However, there is still a lack of investigations regarding fundamental properties such as ferroelectricity in these *** conventional ferroelectric ceramics are prepared at high temperature and have no mechanically flexibility,low-temperature proceed and flexible perovskite ferroelectrics have become promising candidates and should be exploited for future flexible ferroelectric applications. Here, ferroelectric properties in hybrid organic-inorganic perovskites and several state-of-the-art perovskite ferroelectrics are reviewed. Novel ferroelectric applications of hybrid organic-inorganic perovskites are discussed as well, providing guideline for realizing future high performance and flexible ferroelectric devices.

关键词： Ferroelectricity ferroelectric materials flexible devices organic-inorganic perovskites

Exercises for Parkinson＇s disease

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中华物理医学与康复杂志 2017年第7期39卷 528-528页

作者： Collett j Franssen m meaney A

BACKGROUND AND OBjECTIVE While short-term exercise may improve health,well-being and function in patients with Parkinson’s disease(PD),there is a lack of evidence of long-term *** study was designed to better understand these *** This phaseⅡ,randomized,controlled trial included patients with idiopathic PD,who were able to walk at least 100 *** subjects were randomized to perform exercises or receive handwriting training,twice per week for six *** included 30minutes of aerobic training followed by 30 minutes of resistance training.A control group underwent handwriting exercises,using workbooks at *** measures were performed at baseline,and at three,six and 12 *** primary outcome measure was the two-minute

关键词：帕金森病运动随机对照试验测试评估功能评估功能评定训练对照组

Low Cost High Performance Steel Plate With Superior HAZ Toughness for Large Heat Input Welding

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journal of Iron and Steel Research International 2011年第S1期18卷 808-811页

作者： WANG Huan-rong, WANG Wei, liu Gang (Department of Structural Steels, Baosteel Research Institute, Shanghai 201900, China) Baosteel Res Inst Dept Struct Steels Shanghai 201900 Peoples R China

In this paper, a laboratory study has been made to develop low cost high performance steel plates with superior HAZ toughness for large heat input welding. Simulated results show that the absorbed impact energy of heat-affected zone (HAZ) at -20℃reaches above 200j when large heat inputs of 100 to 400kj/cm were applied, suggestive of superior HAZ toughness for large heat input welding of developed steel plate. The microstructures in HAZ are transformed from mainly fine ferrite and bainite at 100kj/cm, through an intermediate stage of ferrite, bainite and pearlite at 200 and 300kj/cm, to nearly fine ferrite and pearlite at 400kj/cm. The prior austenite grain size and ferrite grain size in HAZ are controlled to ～50 and ～20μm, respectively. The high HAZ toughness is due to the inhibition of prior austenite grain size at high temperatures and the formation of beneficial microstructures to HAZ toughness during continuous cooling.

关键词： low cost high performance large heat input welding heat-affected zone (HAZ) steel plate

A solution to Tingley's problem for isometries between the unit spheres of compact C~*-algebras and jB~*-triples

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Science China mathematics 2019年第3期62卷 553-568页

作者： Antonio m.Peralta Ryotaro Tanaka Departamento de Ana'lisis matem'atico Facultad de Ciencias Universidad de Granada Faculty of mathematics Kyushu University

Let f : S(E) → S(B) be a surjective isometry between the unit spheres of two weakly compact jB*-triples not containing direct summands of rank less than or equal to 3. Suppose E has rank greater than or equal to 5. Applying techniques developed in jB*-triple theory, we prove that f admits an extension to a surjective real linear isometry T : E → B. Among the consequences, we show that every surjective isometry between the unit spheres of two compact C*-algebras A and B, without assuming any restriction on the rank of their direct summands(and in particular when A = K(H) and B = K(H′)), extends to a surjective real linear isometry from A into B. These results provide new examples of infinite-dimensional Banach spaces where Tingley's problem admits a positive answer.

关键词： Tingley’s problem extension of isometries jB*-triples compact operators

Comprehensive mapping of murine B cell Epitopes on Glycoprotein E2 from Eastern Equine Encephalitis Virus

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Comprehensive Mapping of Murine B cell Epitopes on Glycoprot...

Continuous-wave operation of 405 nm distributed Bragg reflector laser diodes based on GaN using 10th-order surface gratings

第八届全国免疫学学术大会

作者： EC Sun j Zhao NH liu T Yang QY Xu YL Qin YH Yang DL Wu Harbin Veterinary Research Institute Chinese Academy of Agricultural Sciences Graduate School of Chinese Academy of Agricultural Sciences Beijing Institute of microbiology and Epidemiology

Background and Aim:Eastern equine encephalitis(EEE) is a significant public health concern as its pathogen EEEV, a mosquito-borne virus, could cause both human and equine encephalitis with high case fatality *** E2 protein is one of the main immunogenic protein of EEEV and plays an important role in the protective immune *** there is no licensed vaccine or treatment for human infection other than supportive therapy so it is essential to develop therapeutics that effectively ameliorate or prevent diseases associated with *** there is no report about the determinate epitope map of EEEV E2 ***, we can develop and study on EEEV E2 protein-specific monoclonal antibodies(m Abs) and further identify the epitopes of the E2 *** and Results:In this study, 51 EEEV E2 protein-specific mAbs were prepared and *** also comprehensively mapped the E2 protein by pepscan with mAbs and antisera(polyclonal antibodies, PAbs) using Western blot and peptide ELISA.18 linear B cell epitopes that are targeted by murine antibody responses were *** them, there were 7 overlapping epitopes(E2-1,11+12,14,24,25,28,33) recognized by both mAbs and PAbs, 9 epitopes(E2-2,11,12,16,18,21,31,32,34) were only recognized by PAbs and 2 epitopes(E2-22,25+26), located at 211-226 aa and 248-259 aa, were only recognized by *** specificity identification of the epitopes corresponding with mAbs showed that there were 7 common epitopes of EEEV and 2 common epitopes of EEEV/*** among them, there were 4 EEEV antigenic complexspecific, EEEV subtype Ⅰ / Ⅱ / Ⅲ / Ⅳ(1-16 aa, 248-259 aa, 271-286 aa, 321-336aa) and 3 EEEV type-specific epitopes(subtype Ⅰ at 108-119 aa, subtype Ⅰ / Ⅱ / Ⅲ at 231-246 aa and subtype Ⅰ / Ⅳ at 211-226aa).The 2 common epitopes of EEEV/VEEV were at 131-146 aa and 241-256 ***:The mAbs of EEEV E2 protein prepared and different types of epitopes identified in our study will establish the foundation for th

关键词： EEEV E2 protein monoclonal antibody Polyclonal antibody B-cell epitope mapping

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Photonics Research 2022年第5期10卷 1157-1161页

作者： j.H.KANG H.WENZEL E.FREIER V.HOFFmANN j.FRICKE O.BROX m.mATALLA S.EINFELDT Ferdinand-Braun-Institut gGmbH Leibniz-Institut für Höchstfrequenztechnik12489 BerlinGermany

Single longitudinal mode continuous-wave operation of GaN-based distributed Bragg reflector(DBR) laser diodes with 10 th-order surface gratings is demonstrated. The DBR consists of periodic V-shaped grooves on a 2 μm wide ridge waveguide fabricated by using electron-beam lithography and plasma etching. The effect of different lengths of the DBR section and the gain section on the device performance has been studied. Periodic mode hops to the adjacent longitudinal Fabry–Perot resonator mode at shorter wavelength have been observed when increasing the operation current. Between the mode hops, single longitudinal mode emission at around 405 nm is achieved with a full width at half-maximum of 0.03 nm. A linear redshift of the emission wavelength with increasing temperature of 0.019 nm/K was derived.

关键词： diodes waveguide resonator

Stand dynamics of the drought-affected floodplain forests of Araguaia River,Brazilian Amazon

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Forest Ecosystems 2017年第3期4卷 201-210页

作者： jürgen Homeier Dariusz Kurzatkowski Christoph Leuschner Plant Ecology Albrecht von Haller Institute for Plant Sciences University of Goettingen

Background： The floodplain forests of Araguaia River, a clear-water river in the southeastern Amazon（Tocantins State, Brazil）, are characterized by seasonal flooding up to 3.5 m height, low nutrient levels in the water, and seasonal drought periods of 4–5 ***： We studied the forest dynamics（tree diameter growth, tree mortality and recruitment） of this unique forest ecosystem over a 5-year period by repeated censuses in 12 permanent plots established along a flooding ***： The cumulative basal area in the plots increased by 0.84（±0.45） m^2·ha^-1·yr^-1（mean ±SD） in the annual y-flooded（AF） plots in lower terrain and by 0.69（±1.00） m^2·ha^-1·yr^-1 in the higher non-annual y flooded（NAF） plots, corresponding to an aboveground biomass increase of 0.81（±0.57） and 0.69（±1.58） mg·ha^-1·yr^-1 in the AF and NAF plots, indicating a recent carbon sink in the biomass. mean diameter growth rate was 1.8（±0.44） mm·yr^-1 in the AF and 2.0（±0.56） mm·yr^-1 in the NAF plots（corresponding to a coarse wood production of 1.53（±1.29） and 2.02（±0.52） mg·ha^-1·yr^-1）,indicating no flooding effect on radial growth. mean mortality rates in the 5-year period were 1.9（±0.37）·yr^-1 in the AF plots and 1.8（±0.87）%·yr^-1 in the NAF plots with no differences along the flooding gradient. Highest mortalities were registered in the AF plots for the 10–20 cm dbh class（2.4%·yr^-1）, likely as a consequence of flooding,and in the NAF plots for the 40–50 cm dbh class（3.0%·yr^-1）, probably mainly caused by ENSO-related ***： We conclude that these drought-affected tropical floodplain forests have a lower standing biomass and aboveground productivity than central Amazonian floodplain forests in more humid climates, and the imprint of the flooding gradient on stand dynamics is relatively weak, which may result from the lower flooding height and the interaction of flooding with low nutrient supply and periodic drought.

关键词： Amazon Diameter growth Dry season Flooding regime mortality rate Productivity Tree recruitment