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Observed Climate Change in East China during 1961-2007

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Advances in Climate Change Research 2013年第2期4卷 84-91页

作者： hou Yi-Ling CHEN bao-De YANG Xu-Chao LIANG Ping Shanghai Climate Center Shanghai Typhoon Institute of China Meteorological Administration Zhejiang Institute of Meteorological Sciences

By using in situ daily observations in East China during 1961-2007 and NCEP reanalysis data, the methods of statistical analyses, urban minus rural and observation minus reanalysis, it is revealed that the observed climate change and surface warming in East China were mainly induced by urbanization. The results show that East China has experienced two warmer periods of 1930s and 1980s in the past century; from 1951 to 2007, the regional mean temperature increased at a rate of 0.14℃ per decade; heat waves happened in urban center more frequently, and local climate showed a warming and dry trend; there was no significant linear trend in regional mean precipitation in the past 50 years. Urbanization was a crucial element for the regional warming; about 44% of the warming was due to heat island effect in the mega city.

关键词： East China urbanization climate change

Multi-exponentially Photoelectric Response of Bacteriorhodopsin

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Chinese Physics Letters 2001年第1期18卷 134-136页

作者： YAO bao-Li XU Da-Lun hou Xun HU Kun-Sheng WANG Ao-Jin State Key Laboratory of Transient Optics and Technology Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710068 Institute of Biophysics Chinese Academy of SciencesBeijing 100101

A thin oriented bacteriorhodopsin(bR)film is deposited on a stainless steel slide by use of the electrophoretic sedimentation method.A junction is made with electrolyte gels having a counterelectrode to construct a bR-based photoelectric *** photoelectric response signal to a 10ns laser pulse is measured.A theory on the photoelectric kinetics of bR is developed based on the concept of the charge displacement current and the bR photocycle rate *** between the theoretical and experimental results proves that the bR photoelectric response to a short laser pulse is a multi-exponential *** decay time constants and amplitudes of each exponential component are obtained by data fitting.

关键词： exponential photoelectric kinetics

磁流体特性对磁流变火炮后坐阻尼器性能的影响

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爆炸与冲击 2006年第3期26卷 245-249页

作者：侯保林南京理工大学机械工程学院江苏南京210094

针对火炮后坐磁流变阻尼器的特点,以某单管25 mm火炮实验用磁流变阻尼器为研究对象,基于Herschel-Bulkley本构模型,建立了该炮磁流变后坐阻尼器的轴对称一维层流模型,获得了不同磁场作用下阻尼力随活塞速度的变化规律。运用火炮的后坐... 详细信息

针对火炮后坐磁流变阻尼器的特点,以某单管25 mm火炮实验用磁流变阻尼器为研究对象,基于Herschel-Bulkley本构模型,建立了该炮磁流变后坐阻尼器的轴对称一维层流模型,获得了不同磁场作用下阻尼力随活塞速度的变化规律。运用火炮的后坐运动方程,计算了不同磁流体特性指数下,火炮的后坐位移和后坐速度。计算结果表明,磁流体特性指数的变化对磁流变后坐阻尼器的性能影响显著。

关键词：流体力学磁流变阻尼器 Herschel-Bulkley模型火炮后坐

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某火炮磁流变缓冲阻尼器的设计与分析

兵工学报 2006年第4期27卷 613-616页

作者：侯保林南京理工大学机械工程学院江苏南京210094

针对火炮冲击型磁流变(MR)阻尼器的特点,基于Herschel-Bulkley本构模型,建立了某火炮实验研究用磁流变后坐缓冲阻尼器的平行板一维层流模型。在ANSYS软件中建立了阻尼器流口的电磁有限元模型,求得了平行板流口间磁流变流体(MR流体)的磁... 详细信息

针对火炮冲击型磁流变(MR)阻尼器的特点,基于Herschel-Bulkley本构模型,建立了某火炮实验研究用磁流变后坐缓冲阻尼器的平行板一维层流模型。在ANSYS软件中建立了阻尼器流口的电磁有限元模型,求得了平行板流口间磁流变流体(MR流体)的磁通密度。将MR流体流动模型和流口有限元结果相结合,获得了不同MR流体行为指数和不同磁场作用下阻尼力随活塞速度的变化规律。建立了火炮和磁流变缓冲阻尼器后坐运动方程,计算了不同MR流体行为指数下,火炮与磁流变阻尼器的动力学特性,评价了MR流体行为指数对磁流变阻尼器性能的影响。数值计算结果表明,所设计的磁流变阻尼器满足设计要求。

关键词：机械设计智能材料磁流变阻尼器 Herschel—Bulkley模型火炮后坐

Theoretical Study of the Thermal Decomposition of Chlorofluoromethanol (CHClFOH)

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Chinese Chemical Letters 2000年第10期11卷 891-892页

作者： Shao Kun WANG Hua hou Qing Zhu ZHANG Chun Yan KONG bao Shan WANG Yue Shu Gu School of Chemistry Shandong UniversityJinan 250100 Department of Chemistry Dezhou Normal special schoolDezhou 253023

A complete potential energy surface for the CHClFOH system was calculated at the G3(MP2) level. The calculations reveal that the four-center 1,2-HX (X = F, Cl) elimination mechanism rather than the bond scission mechanism dominate decomposition of CHClFOH. The results are valuable to understand the atmospheric chemistry of HCFC-31.

关键词： chlorofluoromethanol reaction mechanism potential energy surface

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基于磁场有限元分析的磁流变缓冲器结构设计

弹道学报 2007年第3期19卷 80-84页

作者：侯保林南京理工大学机械工程学院南京210094

基于磁场有限元分析和Bingham塑性流动模型,对某实验用火炮后坐磁流变缓冲器进行了结构设计.建立了磁流变缓冲器的二维轴对称磁场有限元模型,分析了活塞长度、线圈内直径以及油缸壁厚等参数的变化对间隙中MR流体的磁通密度的影响,确定... 详细信息

基于磁场有限元分析和Bingham塑性流动模型,对某实验用火炮后坐磁流变缓冲器进行了结构设计.建立了磁流变缓冲器的二维轴对称磁场有限元模型,分析了活塞长度、线圈内直径以及油缸壁厚等参数的变化对间隙中MR流体的磁通密度的影响,确定了一个可以使间隙中MR流体磁通密度达到最大的结构尺寸方案.使用Bingham模型,计算了不同应用电流下磁流变缓冲器的阻尼力-速度关系.进行了火炮后坐动力学计算,计算结果表明,有限元法给出了比解析法更准确的磁场强度解,所设计的磁流变缓冲器满足火炮发射要求.

关键词：磁流变缓冲器有限元分析火炮后坐

Liquid gating membrane

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National Science Review 2020年第1期7卷 9-11页

作者： Xu hou College of Chemistry and Chemical Engineering & College of Physical Science and Technology & Collaborative Innovation Center of Chemistry for Energy Materials & State Key Laboratory of Physical Chemistry of Solid Surfaces Xiamen University

The development of structural materials has brought impetus to every industrial revolution. The value and uses of structural materials follow primarily from their mechanical properties rather than their optical, electronic, magnetic or chemical properties. Conventionally thinking,structural materials are solid, with a fixed structure and good stability, which could include the materials response to an applied force. However, the notion

关键词： Liquid gating membrane

Analysis of Phenotypes Associated with Deficiency of PAX6 Haplotypes in Chinese Aniridia Families

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Current Medical Science 2024年第4期44卷 820-826页

作者： Xiao-lu HAO Ran CHEN Wei LIU bao-ke hou Ling-hui QU Zhao-hui LI Da-jiang WANG Xin JIN hou-bin HUANG Senior Department of Opthalmology the Third Medical Center of Chinese PLA General HospitalBeijing100039China Bolin Eye Care Group Beijing100098China Department of Ophthalmology Hainan Hospital of Chinese PLA General HospitalSanya572000China Department of Ophthalmology the 74th Army Group HospitalGuangzhou510318China

Objective To examine the clinical phenotype and genetic deficiencies present in Chinese aniridia families with PAX6 haplotype *** A comprehensive questionnaire and ophthalmological assessments were administered to both affected patients and unaffected *** clinical feature analysis included the evaluation of visual acuity,intraocular pressure,slit-lamp anterior segment examination,fundus photography,and spectral domain optical coherence *** identify the mutation responsible for aniridia,targeted next-generation sequencing was used as a beneficial *** A total of 4 mutations were identified,consisting of two novel frameshift mutations(c.314delA,p.K105Sfs*33 and c.838_845dup AACACACC,p.S283Tfs*85),along with two recurring nonsense mutations(c.307C>T,p.R103X and c.619A>T,p.K207*).Complete iris absence,macular foveal hypoplasia,and nystagmus were consistent in these PAX6 haplotype-deficient Chinese aniridia families,while corneal lesions,cataracts,and glaucoma exhibited heterogeneity both among the families and within the same *** In our study,two novel PAX6 mutations associated with aniridia were identified in Chinese families,which expanded the phenotypic and genotypic spectrum of PAX6 *** also analyzed the clinical characteristics of PAX6 haplotype deficiency in Chinese aniridia families.

关键词： aniridia PAX6 mutation haplotype deficiency phenotype genotype

A non-uniform grid approach for high-resolution flood inundation simulation based on GPUs

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Journal of Hydrodynamics 2021年第4期33卷 844-860页

作者： Jun-hui Wang Jing-ming hou Jia-hui Gong Bing-yao Li bao-shan Shi Min-peng Guo Jian Shen Peng Lu State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China Xi’an University of TechnologyXi’an710048China CAUPD Beijing Planning and Design Beijing100044China China Power Construction Group Co.LTDNorthwest Engineering Corporation LimitedXi’an710048China

In view of the frequent occurrence of floods due to climate change, and the fact that a large calculation domain, with complex land types, is required for solving the problem of the flood simulations, this paper proposes an optimized non-uniform grid model combined with a high-resolution model based on the graphics processing unit (GPU) acceleration to simulate the surface water flow process. For the grid division, the topographic gradient change is taken as the control variable and different optimization criteria are designed according to different land types. In the numerical model, the Godunov-type method is adopted for the spatial discretization, the TVD-MUSUL and Runge-Kutta methods are used to improve the model’s spatial and temporal calculation accuracies, and the simulation time is reduced by leveraging the GPU acceleration. The model is applied to ideal and actual case studies. The results show that the numerical model based on a non-uniform grid enjoys a good stability. In the simulation of the urban inundation, approximately 40%–50% of the urban average topographic gradient change to be covered is taken as the threshold for the non-uniform grid division, and the calculation efficiency and accuracy can be optimized. In this case, the calculation efficiency of the non-uniform grid based on the optimized parameters is 2–3 times of that of the uniform grid, and the approach can be adopted for the actual flood simulation in large-scale areas.

关键词： Non-uniform grid high-resolution model Godunov-type flood simulation graphics processing unit(GPU)acceleration