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International Journal of Oral Science 2010年第4期2卷 208-214页

作者： bi-jie Han Hong Kang Lai-kui Liu Xin-zhu Yi Xiao-qing Li Department of Oral Anatomy and Physiology West China College of Stomatology Sichuan University Chengdu China Institute of Stomatology Lanzhou University Lanzhou China College of Stomatology Nanjing Medical Science University Nanjing China

Aim The purpose of this study is to compare the effects of the two clutches on recording the condylar movement. Methodology Ten subjects （6 women,4 men; mean age 25.4 years） participated in the study. The mandibular move-ment,sagittal condylar inclination angle,and transversal condylar inclination angle of each subject were recorded with the CADIAX？ using the two clutches,respectively. The characteristics of the tracings of the protrusion,opening,and mediotrusion were analyzed with the t-test statistics at α = 0.05 level. The Kappa values were calculated for an assessment of the congruence of the tracings. Results The results showed that the contour,direction,and dimension of the tracings in the two clutches were approxi-mately same,but the tracings determined by the functional occlusal clutch were more regular and congruent. In the group segment recorded with the tray clutch,opening/ closing paths of one subject showed crossed and time curves of three subjects appeared peak-like changes of velocity,but none were statistically different （P0.05）. Conclusion The research suggests that the functional occlusal clutch should be preferred in the evaluation of the mandibular function,as the tracings with the tray clutch are more likely to produce false positive results.

关键词： CADIAX temporomandibular joint mandibular movement functional clutch occlusion

Spatio-temporal patterns of zooplankton in a main-stem dam affected tributary: a case study in the Xiangxi River of the Three Gorges Reservoir, China

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Science China(Life Sciences) 2019年第8期62卷 1058-1069页

作者： Xinghao Li jie Huang Sabine Filker Thorsten Stoeck Yonghong bi Yuhe Yu Weibo Song Laboratory of Protozoology Institute of Evolution and Marine BiodiversityOcean University of ChinaQingdao266003China Key Laboratory of Aquatic biodiversity and Conservation of Chinese Academy of Sciences and State Key Laboratory of Freshwater Ecologyand BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhan430072China Department of Molecular Ecology University of Technology KaiserslauternKaiserslautern67663Germany Department of Ecology University of Technology KaiserslauternKaiserslautern67663Germany Laboratory for Marine biology and biotechnology Qingdao National Laboratory for Marine Science and TechnologyQingdao266003China

As the ecologically important recipient channels for riverine ecosystems, tributaries provide unique microhabitats for microorganisms, among which zooplankton constitutes the most important heterotrophic organisms. In particular, the reduced water velocity caused by dams is more favorable for zooplankton development;therefore, dammed rivers are expected to support extremely diverse and abundant zooplankton communities and notably different spatiotemporal distribution patterns. So far,however, only very few molecular studies support these assumptions. Using high-throughput sequencing, a high number of 350 operational taxonomic units(OTUs;97% cutoff) were retrieved from 30 samples collected in the Xiangxi River, the nearest large tributary upstream of the Three Gorges Dam. Zooplankton did not show significant spatial distribution in the channel. Instead,the community structures varied significantly over sampling dates, corroborating the seasonal patterns found in lakes and ponds in the subtropical zone. As expected, the community compositions were deterministically governed by environmental filtering processes(phylogenetic clustering), in which water velocity appeared to be much less important than other investigated environmental factors. Moreover, most of the detected phylotypes(OTUs) had a relatively high(>90%) sequence similarity to previously deposited sequences, suggesting a mediocre degree of genetic novelty within the zooplankton communities in the Xiangxi River.

关键词： zooplankton high-throughput sequencing spatiotemporal distribution genetic novelty tributary main-stem dam

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N-杂环卡宾:一种多用途有机小分子催化剂

有机化学 2006年第6期26卷 745-756页

作者：孙小宇吴劼复旦大学化学系上海200433

近年来,N-杂环卡宾化学引起了化学家们广泛的研究兴趣,这一切主要归功于Arduengo等的杰出工作,在1991年他们首次成功分离得到了第一个稳定的N-杂环卡宾——咪唑-2-碳烯.这推动了N-杂环卡宾化学的飞速发展.尽管N-杂环卡宾作为配体在金属... 详细信息

近年来,N-杂环卡宾化学引起了化学家们广泛的研究兴趣,这一切主要归功于Arduengo等的杰出工作,在1991年他们首次成功分离得到了第一个稳定的N-杂环卡宾——咪唑-2-碳烯.这推动了N-杂环卡宾化学的飞速发展.尽管N-杂环卡宾作为配体在金属有机化学中已经被广泛研究,然而,对N-杂环卡宾作为反应底物和有机小分子催化剂的研究还有待进一步深入.N-杂环卡宾作为有机小分子催化剂在有机反应中的应用及其研究进展,引起有机化学家对N-杂环卡宾化学这一热点领域的更多关注.

关键词： N-杂环卡宾有机小分子催化剂 Stetter反应极性反转反应

Material flow analysis(MFA)of an eco-economic system:a case study of Wujin District,Changzhou,China

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Frontiers in biology 2008年第3期3卷 367-374页

作者： Heping HUANG Jun bi Xiangmei LI bing ZHANG jie YANG College of Resource&Environmental Management Jiangxi University of Finance&EconomicsNanchang 330032China State Key Laboratory of Pollution Control&Resource Reuse School of EnvironmentNanjing UniversityCentre for Environmental Management&PolicyNanjing University-Jiangsu EPDNanjing 210093China College of Economics&Management Nanjing Agricultural UniversityNanjing 210095China Department of Environmental Science&Engineering University of Science&Technology of SuzhouSuzhou 215011China

The economic and ecological aspects of a social system are coherently linked and can be examined by its material and energy *** this study,we used the material flow analysis(MFA)to model the material input and output of the Wujin District of Changzhou City,Jiangsu Province in *** was revealed that:(1)total material input and material input per capita increased with economic development,while the total material out-put and material output per capita decreased consistently;(2)except for water,the total material input continued to *** of solid materials grew faster than that of gaseous materials,while the total material output *** gas output accounted for the largest pro-portion of the output resulting in primary environmental pollution as burned fossil fuel;(3)water use in agriculture continued with an increasing trend while that in industrial and residential sectors decreased per *** total wastewater discharge and wastewater discharge per capita decreased with a faster decreasing rate of residential was-tewater discharge followed by industrial wastewater discharge;(4)material input per unit GDP fluctuated and material output per unit GDP decreased.A decreasing trend in both water use and wastewater discharge per unit GDP was *** results suggest that the efficiency of resource use in the Wujin District has *** weakened the direct link between economic development and environmental ***,we discussed the harmonic development between environment and *** limitations of MFA’s application were also *** is suggested that effective measures should be taken for the enforcement of cir-cular economic strategies and the construction of a resource-saving economy.

关键词： material flow analysis(MFA) eco-economic system material input-output Wujin District material depleting intensity material use efficiency

Fast three-dimensional radiation field characterization in largescale nuclear installations

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Nuclear Science and Techniques 2017年第5期28卷 53-59页

作者： yuan-jie bi Zhi-Ping Luo Jin-Sen Guo Chuan-Long Li Hong-Wei Yang Ling Chen China Institute of Atomic Energy Beijing 102413 China

The requirement of the fast three-dimensional radiation field calculation is raised during the decommissioning of large-scale nuclear installations. The most often used methods, such as the Monte Carlo and the discrete ordinates methods, have shortcomings in their simulations of such problems. The coupled Monte Carlo–point kernel computational scheme is developed to meet the requirement. The facility is separated into the source region and the bulk shielding region, with a common interface. The transport within the source region is simulated using the Monte Carlo method, which is by nature good at treating complex geometries. The radiation field in the bulk shielding region is treated by the point kernel approach to avoid the extremely expensive computation for deep penetration problems. The flow rate through the interface,which is given by the Monte Carlo simulation, is considered as the equivalent surface source for the point kernel calculation. Test calculations from simplified typical waste storage facilities have been performed to validate the coupled scheme by comparing them with the results conducted by the Monte Carlo method directly. The good agreement of the results, as well as the significant saving in computing time, indicates that the coupled method is suitable for the fast three-dimensional radiation field calculation.

关键词： Fast radiation field calculation Point kernel approach Monte Carlo method Coupled computational scheme

Nearby dark matter subhalo that accounts for the DAMPE excess

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Chinese Physics C 2019年第8期43卷 124-129页

作者： Yi Zhao Xiao-Jun bi Su-jie Lin Peng-Fei Yin College of Physics and Materials Science Tianjin Normal UniversityTianjin 300387China Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China

The precise spectrum of electrons and positrons at high energies plays an important role in understanding their origin. DArk Matter Particle Explorer has reported their first measurement of the e^+e^- spectrum from 25 GeV to 4.6 TeV. This spectrum reveals a tentative peak at ~1.4 TeV, which requires a nearby source of e^+e^-. In this work, we study the properties of a large nearby dark matter subhalo that accouns for this spectral peak, such as its mass and distance from Earth, for different concentration models. We compare spectra of the sources in 3FGL with that from DM annihilation in the subhalo, and find ten candidates that have comparable gamma-ray spectra. However, according to the N-body simulation, the probability that such a large subhalo is close enough to Earth is less than 0.1%.

关键词： dark matter DAMPE

Determination of dark matter distribution in Ursa Major III and constraints on dark matter annihilation

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Chinese Physics C 2024年第11期48卷 247-255页

The recently discovered satellite dwarf galaxy Ursa Major III provides a promising opportunity to explore the signatures resulting from dark matter(DM)annihilation owing to its proximity and large *** the absence of an excess ofγ-ray signatures originating from Ursa Major III,observations ofγ-rays,such as those from Fermi-LAT,can be utilized to set constraints on the DM annihilation *** this study,we determined the DM density profile and considered the relationship between DM density and velocity dispersion at different locations within Ursa Major III through Jeans *** calculated the J-factor of Ursa Major III for s-wave annihilation along with the effective J-factors for p-wave and Sommerfeld enhanced annihilation *** these derived J-factors,we set stringent constraints on DM annihilation cross-sections in three *** the substantial impact of member star identification on the J-factor of Ursa Major III,we further calculated J-factors under the exclusion of the largest velocity *** analysis reveals a notable reduction in the median value and an increase in the deviation of J-factors,thereby leading to considerably weaker constraints.

关键词： dark matter gamma-ray dwarf spheroidal galaxy

Investigation of free amino acid, total phenolics,antioxidant activity and purine alkaloids to assess the health properties of non-Camellia tea

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Acta Pharmaceutica Sinica B 2016年第2期6卷 170-181页

作者： Wu bi Chunnian He Yunyun Ma jie Shen Linghua Harris Zhang Yong Peng Peigen Xiao Institute of Medicinal Plant Development Chinese Academy of Medical Science Peking Union Medical College Key Laboratory of bioactive Substances and Resources Utilization of Chinese Herbal Medicine Ministry of Education Phyto Medix Co.

To find novel functional beverages from folk teas, 33 species of frequently used non-Camellia tea(plants other than Camellia) were collected and compared with Camellia tea(green tea, pu-erh tea and black tea) for the first time. Data are reported here on the quantities of 20 free amino acids(FAAs) and three purine alkaloids(measured by UHPLC), total polyphenols(measured by Folin-Ciocalteu assay), and antioxidant activity(DPPH). The total amounts of FAAs in non-Camellia tea(0.62–18.99 mg/g) are generally less than that of Camellia tea(16.55–24.99 mg/g). However, for certain FAAs, the quantities were much higher in some non-Camellia teas, such as γ-aminobutyric acid in teas from Ampelopsis grossedentata, Isodon serra and Hibiscus sabdariffa. Interestingly, theanine was detected in tea from Potentilla fruticosa(1.16±0.81 mg/g). Furthermore, the content of polyphenols in teas from A. grossedentata, Acer tataricum subsp. ginnala are significantly higher than those from Camellia tea;teas from I. serra, Pistacia chinensis and A. tataricum subsp. ginnala have remarkable antioxidant activities similar to the activities from green tea(44.23 μg/m L). Purine alkaloids(caffeine, theobromine and theophylline) were not detected in non-Camellia teas. The investigation suggest some non-Camellia teas may be great functional natural products with potential for prevention of chronic diseases and aging,by providing with abundant polyphenols, antioxidants and specific FAAs.

关键词： Non-Camellia tea Amino acids Polyphenols Purine alkaloids Antioxidant activity

Depositing natural stibnite on 3D TiO_(2) nanotube array networks as high-performance thin-film anode for lithium-ion batteries

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Rare Metals 2021年第11期40卷 3215-3221页

作者： Juan Yu bi-Cheng Meng Le-jie Wang Qi Wang Wen-Long Huang Xu-Yang Wang Zhao Fang School of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an 710311China Shaanxi Province Metallurgical Engineering and Technology Research Centre Xi’an 710055China School of Metallurgy and Environment Central South UniversityChangsha 410083China

Three-dimensional(3D) thin-film electrodes are promising solution to the volume change of active materials in lithium-ion *** a conductive current collector,the 3D TiO_(2) nanotube array networks(TNAs) have a one-dimensional stable electronic conductive path and increase the adhesion between the current collector and raw material,thereby improving the cycle stability of active *** this study,a novel 3D-TNAs@Sb_(2)S_(3) anode was fabricated by directly depositing natural stibnite onto3D *** adhesion of Sb_(2)S_(3) particles to the substrate was enhanced due to the large surface area provided by ***,the porous layered structure composed of Sb_(2)S_(3) nanoparticles relieved the stress generated during lithiation and adapted to the volume change of Sb_(2)S_(3) during ***,the resulting composite anode exhibits high cycle and rate performance,reaching0.36 mAh·cm^(-2) after 80 cycles at the galvanostatic rate of1 mA·cm^(-2),with high coulombic efficiency of 98%.

关键词： TiO_(2)nanotube array Natural stibnite Lithiumion batteries Anode

Serial Communications Programming in Windows95 with API Functions

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Wuhan University Journal of Natural Sciences 2000年第3期5卷 323-328页

作者： Wang Cheng-hu Yang Zi-jie Wen bi-yang Cheng Feng Wuhan University College of Electronic Information Wuhan China (GRID:grid.49470.3e) (ISNI:***)

This paper introduces the usage of these functions. It presents the technique of how to program with them to perform the serial communications between a computer and other digital devices by the serial porst in Windows95. The related sample codes of the applications of this technique written in C++ programming language are also given. This technique is applied successfully to receive the data of the radio noise from a frequency monitor.

关键词： Windows95 serial communications API function C++ CLC number TP 311. 1