检索结果-南通市图书馆

Solar evaporation for simultaneous oil-water separation and electricity generation with Janus wood-based absorbers

Frontiers of Environmental Science & Engineering 2024年第2期18卷 13-23页

作者： Yue Yang ze fu Qi Zhang Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological EngineeringNanjing University of Science&TechnologyNanjing 210094China Key Laboratory of Industrial Ecology and Environmental Engineering(Ministry of Education) School of Environmental Science and TechnologyDalian University of TechnologyDalian 116024China National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced MicrostructuresCollege of Engineering and Applied SciencesKey Laboratory of Intelligent Optical Sensing and Manipulation(Ministry of Education)Jiangsu Key Laboratory of Artificial Functional MaterialsNanjing UniversityNanjing 210093China

Oily wastewater from ocean oil spills endangers marine ecosystems and human health. Therefore, developing an effective and sustainable solution for separating oil-water mixtures is urgent. Interfacial solar photothermal evaporation is a promising approach for the complete separation of two-phase mixtures using only solar energy. Herein, we report a carbonized wood-based absorber with Janus structure of comprising a hydrophobic top-layer and an oleophobic bottom-layer for simultaneous solar-driven oil-water separation and electricity generation. Under sunlight irradiation, the rapid evaporation of seawater will induce a separation of oil-water mixtures, and cause a high salt concentration region underlying the interface, while the bottom “bulk water” maintains in a low salt concentration, thus forming a salinity gradient. Electricity can be generated by salinity gradient power. Therefore, oil-water separation efficiency of > 99% and derived extra electricity power of ~0.1 W/m2 is achieved under solar radiation, demonstrating the feasibility of oil-water separation and electricity production synchronously directly using solar energy. This work provides a green and cost-effective path for the separation of oil-water mixtures.

关键词： Oily wastewater Carbonized wood Salinity gradient Electricity generation Solar irradiation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Design of A Novel Wheel-Legged Robot with Rim Shape Changeable Wheels

引用

Chinese Journal of Mechanical Engineering 2023年第6期36卷 62-72页

作者： ze fu Hao Xu Yinghui Li Weizhong Guo State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong UniversityShanghai 200240China

The wheel-legged hybrid structure has been utilized by ground mobile platforms in recent years to achieve good mobility on both flat surfaces and rough ***,most of the wheel-legged robots only have one-directional obstacle-crossing *** the motion,most of the wheel-legged robots’centroid fluctuates violently,which damages the stability of the ***’s more,many designs of the obstacle-crossing part and transformation-driving part of this structure are highly coupled,which limits its optimal performance in both *** paper presents a novel wheel-legged robot with a rim-shaped changeable wheel,which has a bi-directional and smooth obstacle-crossing *** on the kinematic model,the geometric parameters of the wheel structure and the design variables of the driving four-bar mechanism are optimized *** kinetostatics model of the mobile platform when climbing stairs is established to determine the body length and angular velocity of the driving wheels.A pro-totype is made according to the optimal *** show that the prototype installed with the novel transformable wheels can overcome steps with a height of 1.52 times of its wheel radius with less fluctuation of its centroid and performs good locomotion capabilities in different environments.

关键词： Mobile platform Transformable wheel-legged robot Kinematics analysis Mechanical design Obstacle

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Microstructure and Mechanical Properties of CNT-Reinforced AZ91D Composites Fabricated by Ultrasonic Processing

引用

Acta Metallurgica Sinica(English Letters) 2016年第7期29卷 652-660页

作者： fu-ze Zhao Xiao-Hui Feng Yuan-Sheng Yang Institute of Metal Research Chinese Academy of Sciences

Carbon nanotube （CNT）-reinforced AZ91D alloy composite was fabricated by ultrasonic processing. The microstructure and mechanical properties of the CNTs/AZ91D composites were investigated. Obvious grain refinement was achieved with the addition of 0.5 wt% CNTs. The SEM observation indicated that CNTs were distributed near the grain boundary or around the inter-grain β-Mg17A112 phase. No evident reaction product was found at the interface between CNTs and AZ91D matrix. Compared to the monolithic AZ91D alloy, the yield strength, ultimate tensile strength, and elongation of the 0.5 wt% CNTs/AZ91D composite were improved significantly. However, the poor interface bonding between CNTs and AZ91D matrix restricted further improvement in mechanical properties.

关键词： Carbon nanotubes (CNTs) Magnesium matrix composites Ultrasonic vibration Microstructure Mechanical properties

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Novel Synthesis of Some Hexasubstituted Cyclotriphosphazenes

引用

Chinese Chemical Letters 2001年第4期12卷 301-304页

作者： Cheng Feng YE ze fu ZHANG Wei Min LIU State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000

Some known and new hexaaryloxyphosphazene: N3P3(O-C6H4-R)(1)/(R=***3. C(CH3)(3). CHO.F.C6H5COOR. etc) were readily obtained with ca. 70% isolated yield in refluxing acetonitriie in the presence of anhydrous potassium ... 详细信息

关键词： Phosphazene cyclotriphosphazene phenols potassium phosphate

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A rapid and cost effective protocol for plant genomic DNA isolation using regenerated silica columns in combination with CTAB extraction

引用

Journal of Integrative Agriculture 2017年第8期16卷 1682-1688页

作者： fu ze-yu SONG Jian-cheng Paula E.Jameson School of Biological Sciences University of Canterbury School of Life Sciences Yantai University

Isolation of high quality DNA from multiple samples can be both time-consuming and expensive. We have developed a combined protocol to reduce the time component of the hexadecyltrimethylammonium bromide （CTAB） extraction method and reduced costs by regenerating the silica columns used to purify genomic DNA. We present data that shows, by in- creasing the temperature used during the CTAB method, the time required to extract crude genomic DNA can be reduced. We show that silica columns can be regenerated using HCI and still maintain their DNA-binding capacity. furthermore, we show both spectrophotometrically, and by restriction enzyme cutting, that the quality of the eluted DNA is high. Critically, using both genomic DNA from pea and perennial ryegrass we demonstrate, using species-specific PCR primers, that there is no carry-over of DNA from repeated use of a single column. The main advantages of the method are high yield, high quality, cost effectiveness and time-saving. This method could satisfy demand when large numbers of plant genomic DNA samples are required, for example from targeting induced local lesions in genomes （TILLING） populations.

关键词： CTAB DNA isolation silica columns

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Enhanced hepatotoxicity induced by repeated exposure to polychlorinated biphenyls and 2,3,7,8-tetrachlorodibenzo-p-dioxin in combination in male rats

引用

Journal of Environmental Sciences 2011年第1期23卷 119-124页

作者： Yimei Wang Chunfeng Lu Zhiguo Sheng Gang Liu ze fu Benzhan Zhu Shuangqing Peng Evaluation and Research Center for Toxicology Institute of Disease Control and Prevention Academy of Military Medical Sciences Beijing 100071 China State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China Department of Pharmacology Basic Medical College Jiamusi University Jiamusi 154007 China

2,3,7,8-Tetrachlorodibenzo-p-dioxin （TCDD） and polychlorinated biphenyls （PCBs） are among persistent polyhalogenated aromatic hydrocarbons that exist as complex mixtures in the environment worldwide. The present study was attempted to investigate the hepatotoxicity following repeated exposure to TCDD and PCBs in combination in male rats, and to reveal the involvement of potential mechanisms. Male Sprague-Dawley rats were exposed to TCDD （10 Ixg/kg） and Aroclor 1254 （10 mg/kg, a representative mixture of PCBs） alone or in combination by intragastric administration. After 12-day exposure, all treatments produced significant hepatotoxicity as characterized by changes of plasma biochemistry and histopathological changes. These effects were more prominent in the combined group. furthermore, all treatments induced hepatic cytochrome P450 1A1 （CYP1A1） expression, and the maximal level of CYP1A1 expression was observed in the combined group, as in the case of the most severe hepatotoxicity evoked by the combined exposure. These findings indicated that the hepatotoxicity induced by TCDD and Aroclor 1254 might be ascribed to the high expression of hepatic CYP1A1. The present study demonstrates the enhanced hepatotoxicity after exposure to TCDD and PCBs in combination in rats.

关键词： 2,3,7,8-tetrachlorodibenzo-p-dioxin polychlorinated biphenyls combined exposure hepatotoxicity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Fatal hemophagocytic lymphohistiocytosis-induced multiorgan dysfunction secondary to Burkholderia pseudomallei sepsis: A case report

引用

World Journal of Clinical Cases 2023年第30期11卷 7372-7379页

作者： Ming-ze Sui Ke-Cheng Wan Yuan-Lu Chen Huan-Long Li Shan-Shan Wang ze-fu Chen Department of Pulmonary and Critical Care Medicine Kunming Children’s HospitalYunnan Key Laboratory of Children’s Major Disease ResearchKunming 650034Yunnan ProvinceChina Department of Pediatrics Hainan General HospitalHaikou 570311Hainan ProvinceChina

BACKGROUND Burkholderia pseudomallei(***)is a short,straight,medium-sized Gramnegative bacterium that mostly exists alone,without a capsule or spores,has more than three flagella at one end,and actively *** confers high morbidity and mortality,with frequent granulocytopenia in *** sepsisrelated ***,mortality may be related to hemophagocytic lymphohistiocytosis(HLH)secondary to *** *** SUMMARY A 12-year-old female was referred from a local hospital to the pediatric intensive care unit with suspected septic shock and fever,cough,dyspnea,and *** admission,supportive symptomatic treatments including fluid resuscitation,anti-infective therapy,mechanical ventilation,and a vasoactive drug maintenance cycle were carefully *** patient became unconscious,her blood pressure could not be maintained even under the exposure of vasoactive drugs,and she experienced cardiorespiratory *** patient died due to ineffective high-quality in-hospital cardiopulmonary resuscitation.A subsequent bone marrow smear examination revealed extensive phagocytosis,and the blood culture was positive for *** history revealed a sibling death from *** sepsis 5 years *** The higher mortality rate in patients with *** sepsis may be related to secondary HLH after infection,wherein multiorgan dysfunction syndrome may be directly related to infection or immune damage caused by secondary *** with *** can be asymptomatic and can become an infective source.

关键词： Burkholderia pseudomallei Sepsis Septic shock Hemophagocytic lymphohistiocytosis Asymptomatic carrier Case report

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Temperature evolution and grain defect formation during single crystal solidification of a blade cluster

引用

China Foundry 2017年第5期14卷 456-460页

作者： De-xin Ma fu Wang Qiang Wu Jian-zheng Guo fu-ze Xu Zhao-feng Liu Shou-zhu Ou Wedge Central South Research Institute Shenzhen 518045China Foundry Institute RWTH Aachen UniversityAachen 52072Germany ALD Vacuum Technologies GmbH Hanau 63450Germany

In order to investigate the asymmetry of thermal conditions during directional solidification, the temperature evolution and correspondingly developed undercooling in a simplified single crystal blade cluster were numerically simulated. Simulation results demonstrate that the temperature distribution at the blade platforms is obviously asymmetrical. On the outside of the blade which directly faces the heating element, the liquidus(TL) isotherms progress relatively smoothly. On the inside of the blades facing the central rod, however, the TLisotherms are in concave shape and the slope goes upwards to the platform extremities. The average undercooling extent ?T and undercooling time ?t at the inside are much higher than those at the outside. It was then predicted that the inside platform extremities have significantly higher probabilities of stray grain formation compared to the outside ones. A corresponding experiment was carried out and the metallographic examination exhibited the same side-and height-dependence of stray grain formation in the blades as predicted. On the inside of the blades, all platforms are occupied by stray grains, while the platforms on the outside are nearly stray grain free. The simulation result agrees very well with the experimental observation.

关键词： superalloy directional solidification single crystal (SC) simulation stray grain (SG)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

国债市场利率期限结构建模——负指数立方L_1平滑样条

引用

系统工程理论与实践 2012年第12期32卷 2637-2643页

作者：吴泽福华侨大学工商管理学院泉州362021

通过对比国内外利率期限结构静态估计模型的优劣,分析节点数目变化和定位改进B样条函数对利率期限结构静态估计的误差,构建最小化定价误差的节点组合布局搜索程序,并引入负指数平滑立方L1样条优化模型,将误差函数最小化结构从平方和最... 详细信息

通过对比国内外利率期限结构静态估计模型的优劣,分析节点数目变化和定位改进B样条函数对利率期限结构静态估计的误差,构建最小化定价误差的节点组合布局搜索程序,并引入负指数平滑立方L1样条优化模型,将误差函数最小化结构从平方和最小化转化为误差距离最小化,权衡拟合误差绝对距离最小化与贴现函数波动性约束,克服B样条函数对节点数目与定位的人工干预和放宽对贴现函数的二阶平滑要求,保留B样条函数刻画中长期利率波动趋势的优势,增强对短期利率波动结构突变的估计和预测能力,提高定价精确度和缓解利率期限结构曲线的过度波动问题.

关键词：利率期限结构波动模型立方L1样条 B样条改进

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Multicomponent Self-assembly: Spontaneous Formation of a Metallomacrocycle from Two Quinoline Based Linear Ligands and Four Silver(Ⅰ) Nitrates

引用

Chemical Research in Chinese Universities 2000年第3期16卷 273-275页

作者： LIAO Sen XU An wu SU Cheng yong ZHANG ze fu YANG Xiao ping KANG Bei sheng LIU Han qin School of Chemistry and Chemical Engineering Zhongshan UniversityGuangzhou 510275China Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Aademy of SciencesLanzhou730000China

A tetrametallotricyclic molecule is constructed by the spontaneous self-assembly of six components altogether consisting of two types of ligands and one type of metal ion. The unprecedented dimension and topology of the complex is derived from the flexible behavior of the ligands. The π-π interactions facilitate the formation of box-like cavity by rigid quinoline rings, while the soft oligoethylene glycol skeleton makes it easy to wrap around to form a macrocycle.

关键词： Silver(Ⅰ) complex Metallosupramolecular complex Self-assembly

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：