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Reflections on coastal inundation,climate change impact,and adaptation in built environment:progresses and constraints

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Advances in Climate Change Research 2020年第4期11卷 317-331页

作者： Xiaoming wang XU Li-lai CUI sheng-Hui Chi-Hsiang wang The State Key Laboratory of the Cryospheric Science Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou730000China Key Laboratory of Urban Environment and Health Institute of Urban EnvironmentChinese Academy of SciencesXiamen361021China Energy CSIROClayton SouthVic 3169Australia

Coastal inundation causes considerable impacts on communities and *** level rise due to climate change increases the occurrence of coastal flood events,creating more challenges to coastal *** we intend to draw the understanding of coastal inundation from our early studies,and provide a silhouette of our approaches in assessing climate change impacts as well as developing risk-based climate *** a result,we impart a distinctive view of the adaption towards the integration of asset design,coastal planning and policy development,which reflect multiscale approaches crossing individual systems to regions and then *** the approaches,we also discussed the constraints that would be faced in adaptation *** this regard,we initially follow the risk approach by illustrating hazards,exposure and vulnerability in relation to coastal inundation,and manifest the impact and risk assessment by considering an urban environment pertinent to built,natural,and socioeconomic *** then extend the scope and recommend the general approaches in developing adaptation to coastal inundation under climate change towards ameliorating overall risks,practically,by the reduction in exposure and vulnerability in virtue of the integration of design,planning and *** more details,a resilience design is introduced,to effectively enhance the capacity of built assets to resist coastal inundation *** then emphasize on the cost-effective adaptation for coastal planning,which delineates the problem of under-adaptation that leaves some potential benefits unrealized or over-adaptation that potentially consumes an excessive amount of ***,we specifically explore the issues in planning and policies in mitigating climate change risks,and put forward some emerging constraints in adaptation *** suggests further requirements of harmonizing while transforming national policies into the contents aligned with provincial an

关键词： Coastal inundation Coastal disaster Sea level rise Climate change Coastal disaster risk reduction Climate adaptation

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Nuclear reprogramming by nuclear transplantation and defined transcription factors

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Chinese Science Bulletin 2009年第1期54卷 14-18页

作者： wang YiXuan LIU sheng lai LiangXue GAO ShaoRong National Institute of Biological Sciences Beijing 102206 China Guangzhou Institute of Biomedicine and Health Chinese Academy of Sciences Guangzhou 5106603 China

In the past ten years,great breakthroughs have been achieved in the nuclear reprogramming area. It has been demonstrated that highly differentiated somatic cell genome could be reprogrammed to a pluripotent state,which indicates that differentiated cell fate is not irreversible. Nuclear transplantation and induced pluripotent stem (iPS) cell generation are the two major approaches to inducing reprogramming of differentiated somatic cell genome. In the present review,we will summarize the recent progress of nuclear reprogramming and further discuss the potential to generate patient specific pluripotent stem cells from differentiated somatic cells for therapeutic purpose.

关键词：肉体细胞基因组 SCNT 细胞核重编程

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Synthesis and Crystal Structure of Dinuclear Copper Complex [Cu(CH_2O(C_6H_4)N=C(C_6H_4)O)(Py)]_2

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Chinese Journal of Structural Chemistry 2002年第1期21卷 55-59页

作者： NIU De-Zhong MU lai-Long LU Zai-sheng wang Yu-Cheng Department of Chemistry Xuzhou Normal UniversityJiangsu 221009China Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou350002China

The complex [Cu2L2(Py)2] (H2L=2-aminobenzoic alcohol condensation salicylaldehyde) was obtained. A single-crystal X-ray study shows that the complex is a binuclear compound (Cu2C38H32N4O4). The coordination geometry about each copper atom is best described as a distorted square pyramid. The compound [Cu2L2(Py)2] belongs to monoclinic system with space group P21, lattice constants: a = 10.3881(1), b = 17.9724(1), c = 17.5800(2) ? b =90.4880(1), V= 3282.05(5) 3, Z= 4, Mr =735.75, Dc=1.489 g/cm3, m= 1.344mm-1, F(000) = 1512, R=0.0519, wR=0.1092 for 6725 reflections with I >2s(I). The distances between Cu(II) and O atoms are range from 1.898(6) to1.976(5)? between Cu(II) and N atoms are range from 1.990(6) to 2.369(7)? The Cu(1)Cu(2) bond length is 3.024(4) ?

关键词： copper (II) 2-aminobenzoic alcohol salicylaldehyde pyridine crystal structure

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硼团簇及其材料化学研究进展(Ⅰ):硼墨烯

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中国科学：化学 2018年第2期48卷 98-107页

作者：李婉璐胡憾石赵亚帆陈欣陈藤藤简添王来生李隽清华大学化学系理论化学中心有机光电子与分子工程教育部重点实验室北京100084 美国布朗大学化学系

位于元素周期表中的第五位元素硼,其丰富的化学结构和多样的成键方式仅次于有机化学和生物科学中的核心元素——碳元素.硼的缺电子性质导致其必须通过多中心键的方式共享电子以平衡体系的电子分布,因此硼团簇多具有独特的几何结构和电... 详细信息

位于元素周期表中的第五位元素硼,其丰富的化学结构和多样的成键方式仅次于有机化学和生物科学中的核心元素——碳元素.硼的缺电子性质导致其必须通过多中心键的方式共享电子以平衡体系的电子分布,因此硼团簇多具有独特的几何结构和电子离域的成键特性.近年来,硼团簇及其材料的研究越来越受到人们的重视,并取得了一系列研究成果.通过实验和理论计算,发现小尺寸的硼团簇多具有平面结构.2014年,王来生与李隽两个研究团队合作发现了中心含六元环孔的平面B_(36)^-团簇并由此提出了硼墨烯(borophene)概念,为二维硼材料的发展提供了新的研究方向.最近中美科学家同时在金属衬底上合成了单层硼墨烯,使得二维硼材料备受关注.鉴于硼的缺电子特性,可以借助于金属掺杂等方式形成各种不同的金属硼化物结构.具有完美平面结构的CoB_(18)^-团簇以及准平面的RhB_(18)^-团簇的发现推动了金属掺杂硼墨烯(metallo-borophene)研究的发展.本文从实验和理论两个方面,对具有平面或准平面结构的纯硼团簇、金属掺杂硼团簇、二维无限延伸硼墨烯材料等进行了介绍和总结,并展望了硼团簇二维材料的研究前景和潜在应用.

关键词：硼团簇硼墨烯电子结构光电子能谱金属掺杂多中心键

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Photoelectrochemical performance of TiO_(2) nanotube arrays by in situ decoration with different initial states

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Rare Metals 2021年第3期40卷 720-727页

作者： Fan Li Chun-lai wang sheng Ding Kun Yang Chang-Jun Liu Feng Tian Institute of Medical Support Technology Academy of Military SciencesTianjin 300161China

Here,carbon dots(CDs) only or nanocomposites of CDs and TiO_(2)(CDs-TiO_(2)) were used to decorate titanium dioxide nanotube arrays(TiO_(2)NTs) in situ by solvothermal *** initial states of TiO_(2)NTs were prepared for contrast,including the amorphous TiO_(2)NTs(TiO_(2)NTs-0) just experienced anodic oxidation process and that further calcined TiO_(2)NTs(TiO_(2)NTs-450).It was found that the newborn CDs or CDs-TiO_(2)were more likely to anchor on TiO_(2)NTs-0 than the calcined TiO_(2)NTs-450,and more Ti-C bonds were found in the composites which were derived from TiO_(2)NTs-0 after the solvothermal *** evident photocurrent could be demonstrated for either CDs or CDs-TiO_(2)decorated TiO_(2)NTs once exposed to visible *** CDs-TiO_(2)NTs-0 showed the highest photocurrent density(4.51 μA·cm^(-2)).However,the results of photodegradation measurements revealed that CDs-TiO_(2)decorated TiO_(2)NTs with different initial states(especially CDs-TiO_(2)-TiO_(2)NTs-0) showed more excellent photocatalytic activity under both ultraviolet(UV) and visible light illumination.

关键词： Titanium dioxide nanotube arrays Carbon dots Solvothermal technique Photocatalysis

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Wear Behavior and Mechanism of a Sliding Pair of 0.1C-3Cr-2W-V Nitrided Steel Rubbing against an Aluminum Bronze Alloy

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Journal of Iron and Steel Research International 2016年第3期23卷 281-288页

作者： Guang-hong wang sheng-guan QU Zhi-hua XIONG Fu-qiang lai Xiao-qiang LI Mao-sheng YANG School of Mechanical and Automotive Engineering South China University of Technology Institute of Special Steel Central Iron and Steel Research Institute

Wear behavior and mechanism of plasma nitrided steel oscillating against a heat-treated and an untreated aluminum bronze alloy were investigated using an Optimol SRV *** influence of heat treatment on the mechanical properties of the alloy was ***,the wear debris was also examined to understand the wear *** results show that a 220-230μm nitrided layer,which was harder than the substrate,was obtained on the steel *** tensile strength and hardness of the alloy are found to be significantly improved by the heat treatment associated with low impact *** heat treatment of the alloy did not obviously decrease the friction coefficient of the nitrided steel-bronze ***,the wear loss of the nitrided steel increased when it mated with the treated bronze by a severe three-body *** nitrided steel was mainly damaged by fatigue *** plane contact conditions,the wear debris was mainly generated from the bronze part and can escape from the interface before being oxidized,leading to the phase structure of all the debris being copper rather than copper oxides.

关键词： steel plasma nitriding aluminum bronze sliding wear three-body abrasion

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Phase-field simulation of re-dissolution of γ’phase in Ni-Al alloy by continuous and second-order aging treatment

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Rare Metals 2021年第5期40卷 1155-1163页

作者： Kun-Wu lai Shu-Jing Shi Zheng-Wei Yan Yong-sheng Li sheng-Shun Jin Dong wang Shahid Maqbool School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology Nanjing 210094China

The morphology and kinetics evolution of the γ’(Ni3 Al)phase during re-dissolution are studied in Ni-15 at% Al alloy,the changes of volume fraction and average particle radius of theγ’phase were clarified with phasefield *** isothermal aging,the interdistance of the neighboringγ’phase affects the interface concentration gradient of Al,which dominates the growth or redissolution of the γ’phase *** isothermal aging at 700 K,the alloy is continuously heated to 900 K with different heating rates,the re-dissolution lag happens,meaning the coalescence coarsening of adjacent γ’phase particles still proceeds at the initial heating *** predissolution of γ’phase with cubic shape is re-dissolved firstly at the edges and corners,in continuous heating to 900 K or by second-order aging from 700 to 900 *** from continuous heating,in the second-order aging process,the connected particles with band shape are broken initially by *** different heating rates,the similar dynamic relationships are abstracted for the volume fraction and the heating rates,and the average particle radius and the heating rates.

关键词： Ni-based superalloy γ’phase Re-dissolution Kinetics

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Numerical Simulation on Blast Furnace Operation with Hot Burden Charging

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Journal of Iron and Steel Research International 2014年第8期21卷 729-736页

作者： Tong-lai GUO Man-sheng CHU Zheng-gen LIU Hong-tao wang College of Materials and Metallurgy Northeastern University

Blast furnace operation with hot burden charging was numerically simulated to preliminarily analyze its advantages and disadvantages. Multi-fluid blast furnace model was utilized to simulate hot burden charging operations under the conditions that the charging temperatures of pellet and coke were supposed separately or simultaneously as 800℃. The results showed that, with hot burden charging, the furnace top temperature significantly increased in comparison to the conventional operation with cold hurden charging. However, in-furnace temperature decreased, which decelerated the reduction rate of ferrous burdens. The concentrations of reducing gases were decreased in the furnace. The height of cohesive zone shifted downwards. When the charging temperatures of pellet and coke were simultaneously 800 ~C （PC800）, coke rate, fuel rate and carbon emission rate were decreased by 13.4, 22.1 and 19.25 kg ~ t-1 , respectively. The ratio of ore to coke, solid burden charging rate and hot metal productivity were increased by 4. 790%, 7.55 kg · s^- 1 and 6.38%, respectively. Heat taken away by top gas and energy consumption per ton hot metal were increased by 68.97% and 6.40%, respectively. Generally speaking, hot burden charging was ad verse to energy utilization of blast furnace.

关键词： blast furnace hot burden charging multi-fluid theory energy consumption

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Fentanyl inhibits glucose-stimulated insulin release from β-cells in rat pancreatic islets

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World Journal of Gastroenterology 2009年第33期15卷 4163-4169页

作者： Tao-lai Qian Xin-Hua wang sheng Liu Liang Ma Ying Lu Department of Pain Management Shanghai East Hospital Tongji University Shanghai 200120 China Department of Anesthesia Shanghai East HospitalTongji University Shanghai 200120 China Cell Therapy Center Shanghai East Hospital Tongji University Shanghai 200120 China Central Laboratory Shanghai East Hospital Tongji University Shanghai 200120 China

AIM： TO explore the effects of fentanyl on insulin release from freshly isolated rat pancreatic islets in static culture. METHODS： Islets were isolated from the pancreas of mature Sprague Dawley rats by common bile duct intraductal collagenase V digestion and were purified by discontinuous Ficoll density gradient centrifugation. The islets were divided into four groups according to the fentanyl concentration： control group （0 ng/mL）, group I （0.3 ng/mL）, group I （3.0 ng/mL）, and group III （30 ng/mL）. In each group, the islets were co-cultured for 48 h with drugs under static conditions with fentanyl alone, fentanyl ＋ 0.1 μg/mL naloxone or fentanyl ＋ 1.0 μg/mL naloxone. Cell viability was assessed by the MTT assay. Insulin release in response to low and high concentrations （2.8 mmol/L and 16.7 mmol/L, respectively） of glucose was investigated and electron microscopy morphological assessment was performed. RESULTS： Low- and high-glucose-stimulated insulin release in the control group was significantly higher than in groups I and II （62.33 ± 9.67 μIU vs 47.75 ± 8.47 μIU, 39.67 ± 6.18 μIU and 125.5 ± 22.04 μIU vs 96.17 ± 14.17 μIU, 75.17 ± 13.57 μIU, respectively, P 〈 0.01） and was lowest in group III （P 〈 0.01）. After adding 1 μg/mL naloxone, insulin release in groups II and II was not different from the control group. Electron microscopy studies showed that the islets were damaged by 30 ng/ml fentanyl. CONCLUSION： Fentanyl inhibited glucose-stimulated insulin release from rat islets, which could be prevented by naloxone. Higher concentrations of fentanyl significantly damaged β-cells of rat islets.

关键词： Fentanyl Inhibition Insulin release Islets

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Observation of Di-Boronyl-Diborene Anion B2(BO)2-.Multiple Boron-Boron Bonds in Boron Oxides

Observation of Di-Boronyl-Diborene Anion B2(BO)2-.Multiple B...

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中国化学会第五届全国结构化学学术会议

作者： Si-Dian Li Jin-Chang Guo Institute of Materials Science and Department of Chemistry,Xinzhou Teachers’ University,Xinzhou 034000,Shanxi. Hua-Jin Zhai lai-sheng wang Department of Physics,Washington State University,2710 University Drive,Richland,Washington 99354,Chemical & Materials Sciences Division,Pacific Northwest National Laboratory,MS K8-88,Post Office Box 999,Richland,Washington 99352.

Being isoelectronic with cyano-CN,boronyl -BO was recently confirmed in a joint photoelectron spectroscopy(PES)and density functional theory(DFT)investigation to be a σ-radical directly boned to a B atom in both linear di-boronyl-borane DB(BO)) and triangular tri-boronyl-borane DB(BO) DFT investigations also indicated that -BO radicals strongly favor the formation of o-bonds with C in carbon bomnyls

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