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Deposition Morphology of Non-homogeneous Debris Flow and Its Energy Characteristics

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Journal of Mountain Science 2015年第5期12卷 1157-1168页

作者： shu an-ping TANG Chuan ZHANG Xin SHAO Song-dong YANG Kai Key Laboratory of Water and Sediment Sciences of Ministry of Education School of Environment Beijing Normal University State Key Laboratory of Geo-hazard Prevention and Geo-environment Protection Chengdu University of Technology School of Environment Beijing Normal University Department of Civil and Structural Engineering University of Sheffield State Key Laboratory of Hydraulics and Mountain River Engineering Sichuan University Hydrochina Huadong Engineering Corporation

Non-homogeneous two-phase debris flows are widely found in the western mountainous regions of China. To investigate the characteristics of the debris flow deposition process related to the morphology and extent of the debris fan, a series of physical experiments were carried out using an experimental flume. Some useful relationships were obtained to link the flow velocity with the geometric characteristics of deposition morphology and the corresponding area or volume. Based on these, some expressions about energy dissipation process in both the transport-deposition zone and deposition zone are presented, and improved equations describing solidliquid two-phase energy transformations in the specific deposition zone are also established. These results provide a basis for further investigating the underlying mechanisms of non-homogeneous debris flows, based upon which effective disaster control measures can be undertaken.

关键词： Non-homogeneous debris flow Deposition morphology Debris flow velocity Energydissipation

Integrated rainfall-runoff process with shallow water model by mass varied smoothed particle hydrodynamics:Infiltration effect implementation

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Journal of Hydrodynamics 2021年第6期33卷 1190-1201页

作者： Xiao-ming Fei He-xiang Yan Tao Tao Kun-lun Xin shu-ping Li Key Laboratory of Cities’Mitigation and Adaptation to Climate Change in Shanghai China Meteorological Administration(CMACC)Shanghai 200030China College of Environmental Science and Engineering Tongji UniversityShanghai 200092China

Rainfall-runoff modeling is essential for addressing a wide range of issues in urban drainage system design and operation in both scientific research and engineering ***,it has become increasingly attractive to use the smoothed particle hydrodynamics(SPH)method to model rainfall-runoff because of its inherent features such as mesh-free and automatic adaptiveness for wet-dry ***,one of its inadequacies is the lack of an infiltration effect within rainfall-runoff ***,we propose a new methodology that innovatively integrates the infiltration effect into the shallow water equation(SWE)system with the SPH method(SPH-SWE)to represent a more complete rainfall-runoff *** the proposed method,the mass-varied SPH-SWE(MVSPH-SWE)method is enhanced by integrating the infiltration model.A naked area treatment(NAT)method is subsequently proposed to improve the modeling efficiency and *** obtained numerical results are validated using experimental data from the *** results demonstrate that the proposed method is accurate and *** achievements and findings of this study are expected to improve and extend the use of existing hydrological process models.

关键词： Infiltration effect smoothed particle hydrodynamics(SPH) rainfall-runoff process mass-varied particle naked area treatment

Crystal structures, antibacterial activity and thermal decomposition kinetics of lanthanide complexes with 4-chloro-2-methoxybenzoic acid and 1,10-phenanthroline

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Chinese Science Bulletin 2014年第27期59卷 3398-3405页

作者： Ying-Ying Zhang shu-Xia Ren Jian-Jun Zhang Ning Ren shu-ping Wang Testing and Analysis Center Hebei Normal University Material Science and Engineering School Shijiazhuang Tiedao University College of Chemistry and Material Science Hebei Normal University Department of Chemistry Handan College

A series of lanthanide complexes [Ln(4-Cl-2-MOBA)3phen]2(Ln=Sm(1), Nd(2), Ho(3), Eu(4), Dy(5), and Tb(6); 4-Cl-2-MOBA=4-chloro-2-methoxybenzoate, phen=1,10-phenanthroline) were synthesized and characterized. The single-crystal X-ray diffraction demonstrates that 1–3 are isomorphous, which present dimeric structures with four 4-Cl-2-MOBA anions function as bridging ligands. Complexes 1 and 4–6 display their characteristic luminescence emission bands of central Ln3?ions. The heat capacities, the thermodynamic functions and the thermogravimetry–Fourier transform infrared spectra of gaseous products of complexes 1–6 were *** non-isothermal kinetics of the second decomposition stage was studied by the integral isoconversional non-linear method and Stark method. Furthermore, 1–6 exhibited excellent antibacterial activity against Candida albicans,Escherichia coli and Staphylococcus aureu.

关键词：热分解动力学甲氧基苯甲酸稀土配合物晶体结构抗菌活性邻菲咯啉镧系元素金黄色葡萄球菌

Synthesis and Crystal Structure of a 1-D Coordination Polymer {[Cu(NIT4py)_2(ip)]·6H_2O}_n

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Chinese Journal of Structural Chemistry 2006年第2期25卷 214-218页

作者： WANG shu-ping GAO Dong-Zhao LIAO Dai-Zheng JIANG Zong-Hui YAN Shi-ping LI Li-Cun Department of Chemistry Nankai University Tianjin 300071 China State Key Laboratory of Structural Chemistry Fujian Instituteof Research on the Structure of MatterThe Chinese Academy of Sciences Fuzhou 350002 China

A new complex { [Cu（NIT4py）2（ip）]·6H2O }, （NIT4py=2-（4＂-pyridinyl）-4,4,5,5-tetra methylimidazoline-1-oxyl-3-oxide and ip = isophthalate dianion） has been synthesized and structurally characterized by X-ray diffraction. It crystallizes in orthorhombic, space group Cmcm with a = 25.161（3）, b =10.045（1）, c = 15.450（2） A°, C32H48N6O14CU, Mr = 804.30, V= 3904.8（8） ,A°^3, Z = 4, De = 1.368 g/cm^3, μ（MoKa） = 0.630 mm^-1, F（000） = 1692, the final R = 0.0326 and wR = 0.0787 for 1843 independent reflections with Rint = 0.0372. Each Cu（Ⅱ） ion is four-coordinated by two carboxylate oxygen atoms and two pyridyl-N atoms from NIT4py radicals to furnish a rhombus geometry. The central Cu（Ⅱ） ion is located at an inversion center and a crystallographic two-fold axis. Each isophthalate dianion binds two Cu（Ⅱ） ions in bis-monodentate mode, leading to a 1-D chain, a＇ these 1-D chains are further linked into a 2-D network via hydrogen-bonding interactions.

关键词： crystal structure nitronyl nitroxide radical copper(Ⅱ) coordination polymer isophthalate

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西部地区工业碳排放时空特征及达峰分析

节能 2024年第4期43卷 81-83页

作者：李佳佳邹艳王淑平重庆师范大学经济与管理学院重庆401331

以西部地区工业行业为研究对象,对碳排放测算方法进行优化,在合理量化西部地区工业碳排放的基础上,分析西部地区工业碳排放的时空特征;构建BP神经网络模型预测西部地区工业碳排放,从碳排放总量和强度两个角度探究其达峰情况。结果显示:... 详细信息

以西部地区工业行业为研究对象,对碳排放测算方法进行优化,在合理量化西部地区工业碳排放的基础上,分析西部地区工业碳排放的时空特征;构建BP神经网络模型预测西部地区工业碳排放,从碳排放总量和强度两个角度探究其达峰情况。结果显示:西部地区工业碳排放量在2000~2019年总体呈上升趋势,具有“中低、外高”的空间分布特征;西部地区中四川、贵州、云南、甘肃、新疆地区可能在2030年前实现达峰,内蒙古、青海、陕西、广西、宁夏、重庆地区的达峰时间可能晚于2030年;碳排放强度下降目标方面,预测西部地区中仅内蒙古、新疆、青海地区不能完成碳排放强度下降目标。

关键词：西部地区碳排放排放因子法 BP神经网络时空特征碳达峰

吕梁学院安全工程专业课程思政教学实践与反思

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吕梁学院学报 2024年第2期14卷 43-46页

作者：薛淑萍常悦石晓玲吕梁学院资源与机械工程系山西离石033001

新工科的发展正在推动教育的不断进步,其中最重要的是深入学科领域,培养优秀的从业者.安全工程专业作为新工科发展的重要组成部分,应将思政元素融入课堂,更加注重将工程与人文主义紧密联系,以提升学生的综合性、前沿性和应用能力.基于... 详细信息

新工科的发展正在推动教育的不断进步,其中最重要的是深入学科领域,培养优秀的从业者.安全工程专业作为新工科发展的重要组成部分,应将思政元素融入课堂,更加注重将工程与人文主义紧密联系,以提升学生的综合性、前沿性和应用能力.基于新工科建设理念的需要,吕梁学院安全工程专业在本科生导师制的背景下借助当前新工科最新研究成果,建立崭新的体系、方法、教学流程和教学评价模式,取得了良好效果.

关键词：安全工程课程思政新工科本科生导师制

Influence of Isotope Effects on the Stereodynamics of the N(^(4)S)+H_(2)→NH+H Reactive System:a QCT Study

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Chinese Physics Letters 2011年第9期28卷 120-123页

作者： ZHANG Juan CHU Tian-shu DONG shun-Le YUAN shu-ping FU Ai-ping DUAN Yun-Bo College of Information Science and Engineering Ocean University of ChinaQingdao 266071 Institute for Computational Sciences and Engineering Laboratory of New Fiber Materials and Modern Textilesthe Growing Base for the State Key LaboratoryQingdao UniversityQingdao 266071

To investigate the isotopic effects and their influence on the stereodynamical properties of the N(^(4)S)+H_(2) reaction system,quasi−classical trajectory(QCT)calculations are carried out on the 4A"double many−body expansion(DMBE)potential energy surface(PES)[***.7(2005)2867]at a collision energy of 40 kcal/*** generalized polarization-dependent differential cross sections(PDDCSs)and the three angular distributions of P(θr),P(φr)and P(θr,φr)are presented and discussed for the title reaction and its isotope *** is revealed that both intermolecular and intramolecular isotope effects can exert a substantial influence on the product polarizations.

关键词： collision dynamics intramolecular

NEW WIND WAVE GROWTH RELATIONS

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Journal of Hydrodynamics 2004年第5期16卷 608-614页

作者： WUshu-ping HOUYi-jun YINBao-shu InstituteofOceanology ChineseAcademyofSciencesQingdao266071China

In the present paper combining the relationship between wave steepness andwave age with the significant wave energy balance equation for wind wave, a new wind wave growthrelation is presented. Comparisons with the other existing wind wave growth relations show that theresults in present paper accord better with the wind wave growth process.

关键词： relationship between wave steepness and wave age wind wave energy balanceequation new wind wave growth relation

Thermal stability and electrical transport properties of Ge/Sn-codoped single crystalline β-Zn4Sb3 prepared by the Sn-flux method

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Chinese Physics B 2017年第2期26卷 441-445页

作者： Hong-xia Liu shu-ping Deng De-cong Li Lan-xian Shen shu-kang Deng Education Ministry Key Laboratory of Renewable Energy Advanced Materials and Manufacturing Technology Yunnan Normal UniversityKunming 650500China Photoelectric Engineering College Yunnan Open UniversityKunming 650500China

This study prepares a group of single crystalline β-Zn_4Sb_3 with Ge and Sn codoped by the Sn-flux method according to the nominal stoichiometric ratios of Zn_（4.4）Sb_3 Ge_xSn_3（x = 0–0.15）. The prepared samples possess a metallic luster surface with perfect appearance and large crystal sizes. The microscopic cracks or defects are invisible in the samples from the back-scattered electron image. Except for the heavily Ge-doped sample of x = 0.15, all the samples are single phase with space group R3c. The thermal analysis results show that the samples doped with Ge exhibit an excellent thermal *** with the polycrystalline Ge-substituted β-Zn_4Sb_3, the present single crystals have higher carrier mobility, and hence the electrical conductivity is improved, which reaches 7.48×10~4S·m^（-1） at room temperature for the x = 0.1 *** change of Ge and Sn contents does not improve the Seebeck coefficient significantly. Benefiting from the increased electrical conductivity, the sample with x = 0.075 gets the highest power factor of 1.45×10^（-3）W·m^（-1）·K^（-2） at 543 K.

关键词： thermoelectric materials β-Zn4Sb3 flux method electrical transport properties