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Structural Analysis About a New Solar Sail

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空间科学学报 2009年第2期29卷 249-256页

作者： ZHENG Jinjin SHENG Zhaoyu ZHOU Hongjun huang wenhao SHENG Lianguan Department of Precise Machinery and Precise Instrumentation University of Science and Technology of China Hefei 230026 National Synchrotron Radiation Laboratory University of Science and Technology of China

The article presents a structural analysis of a new space probe-solar *** was deployed successfully on *** loads for an outer space mission was introduced and expressed with *** a special state,the largest load around earth was used to analyze the model by the finite element *** results about strain and stress was obtained after setting some initial *** to the results in the literature,the results presented here are significant.

关键词：太阳反射器太阳能空间技术结构分析

Efficient and selective recovery of Gd(Ⅲ)via polyethyleneimine modification of lanthanum-based metal-organic frameworks

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Journal of Rare Earths 2024年第1期42卷 210-219,I0007页

作者： wenhao Li Lijinhong huang Bin Xiao Xiaoguang Duan Haike Li Lang Li Wanfu huang Ganzhou Key Laboratory of Basin Pollution Simulation and Control Jiangxi University of Science and TechnologyGanzhou341000China Innovation Center for Water Quality Security Technology at Ganjiang River Basin Jiangxi University of Science and TechnologyGanzhou341000China Faculty of Science and Engineering WA School of Mines:MineralsEnergy and Chemical EngineeringCurtin UniversityWAAustralia School of Architecture and Design Jiangxi University of Science and TechnologyGanzhou341000China School of Resources and Architectural Engineering Gannan University of Science and TechnologyGanzhou341000China School of Chemical Engineering and Advanced Materials The University of AdelaideAdelaideSA5005Australia School of Resource and Environmental Engineering Jiangxi University of Science and TechnologyGanzhou341000China

With the development of the economy and the increasing demand for environmental protection,the efficient and selective recovery of Gd(Ⅲ)from actual wastewater is of critical *** this work,lanthanum-based metal-organic framework(LaBDC)materials were prepared by a hydrothermal method,and then polyethyleneimine(PEI)and LaBDC were combined by an impregnation method to form a novel LaBDC@xPEI *** prepared materials were characterized using Fourier transfo rm infrared spectroscopy(FTIR),X-ray diffraction(XRD),scanning electron microscopy(SEM),energy dispersive X-ray spectroscopy(EDX),B runauer-Emmett-Teller(BET),thermogravimetric analysis(TGA)and X-ray photoelectron spectroscopy(XPS).Experiments show that LaBDC@50%PEI has the highest adsorption capacity(181.77 mg/g)among lanthanum-based MOFs with different PEI loadings at pH=5.5,which is about 5.1 times that of bare *** adsorption isotherm analysis shows that LaBDC@50%PEI follows the Langmuir *** addition,the adsorption kinetics of LaBDC@50%PEI follows a pseudo-second-order kinetic model,indicating that the adsorption process is chemical *** is worth noting that LaBDC@50%PEI maintains good adsorption performance and stability after three recycling tests,and exhibits excellent selectivity in cation interference ***,the LaBDC@50%PEI composites possess good stability and hold great promises in rapid recovery of Gd(Ⅲ)from practical aqueous environments.

关键词： Wet-impregnation method Polyethylene imine Metaleorganic frameworks Lanthanum Recovery of Gd(Ⅲ) Rare earths

海红米糠多糖的提取工艺、结构表征及抑制HepG2细胞增殖研究

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食品与发酵工业 2024年第13期50卷 47-54页

作者：陈岑陈建平黄文浩陈博文钟赛意李瑞刘晓菲宋兵兵汪卓广东海洋大学食品科技学院/广东省水产品加工与安全重点实验室/广东省海洋生物制品工程实验室/广东省海洋食品工程技术研究中心/水产品深加工广东普通高等学校重点实验室/广东省亚热带果蔬加工科技创新中心广东湛江524088 海洋食品精深加工关键技术省部共建协同创新中心(大连工业大学) 辽宁大连116034

该文主要考察了海红米糠多糖(sea red rice bran polysaccharide,SRBP)的提取工艺、结构表征及其抑制HepG2细胞增殖的情况。以海红米皮糠为原料,考察了不同提取方法对SRBP得率的影响。在单因素的基础上采用响应面法优化了SRBP的最佳提... 详细信息

该文主要考察了海红米糠多糖(sea red rice bran polysaccharide,SRBP)的提取工艺、结构表征及其抑制HepG2细胞增殖的情况。以海红米皮糠为原料,考察了不同提取方法对SRBP得率的影响。在单因素的基础上采用响应面法优化了SRBP的最佳提取工艺。采用苯酚硫酸法和间羟基联苯比色法测定其化学组成,液相色谱法测定分子质量及单糖组成,并用紫外、红外光谱、扫描电镜对其进行结构表征。采用噻唑蓝(methyl thiazolye tetrazolium,MTT)法测定SRBP对HepG2细胞生长的影响。实验结果表明,SRBP的最佳提取工艺条件为酶解时间61 min,料液比(g∶mL)1∶33,酶解温度59℃。经测定,SRBP是一种纯度较高的甘露糖吡喃型杂多糖,不含蛋白及核酸物质,表面粗糙、呈片状结构。MTT实验表明,SRBP在800μg/mL下对HepG2细胞作用24 h的存活率仅为(9.77±0.81)%,表明其具有抑制HepG2增殖的能力。综上可知,提取得到的SRBP具有一定的抗肿瘤活性,为其在饮食干预肝癌等方面提供了理论依据和数据参考。

关键词：海红米糠多糖提取工艺结构表征 HepG2细胞

聚乙烯醇载药微球介入栓塞在原发性肝癌患者中的应用效果

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癌症进展 2024年第12期22卷 1327-1330页

作者：林亚超许立国黄文浩冯广森郑州大学第二附属医院介入科郑州450003

目的探讨聚乙烯醇载药微球介入栓塞在原发性肝癌患者中的应用效果。方法将182例原发性肝癌患者按照治疗方法的不同分为对照组(n=87,传统栓塞治疗)和试验组(n=95,聚乙烯醇载药微球介入栓塞治疗),比较两组患者的临床疗效、血清学指标[甲... 详细信息

目的探讨聚乙烯醇载药微球介入栓塞在原发性肝癌患者中的应用效果。方法将182例原发性肝癌患者按照治疗方法的不同分为对照组(n=87,传统栓塞治疗)和试验组(n=95,聚乙烯醇载药微球介入栓塞治疗),比较两组患者的临床疗效、血清学指标[甲胎蛋白(AFP)、总胆红素(TBIL)、丙氨酸转氨酶(ALT)]、不良反应发生情况及生存情况。结果治疗后3个月,两组患者AFP、TBIL、ALT水平均低于本组治疗前,试验组患者AFP、TBIL、ALT水平均低于对照组,差异均有统计学意义(P﹤0.05)。试验组患者客观缓解率和1年生存率均高于对照组,1级无症状或轻度体征发生率高于对照组,3、4级不良反应发生率均低于对照组,差异均有统计学意义(P﹤0.05)。结论聚乙烯醇载药微球介入栓塞治疗原发性肝癌的临床疗效较好,不良反应和对肝组织的损伤较小,并且能有效降低血清AFP水平,提高患者的生存率。

关键词：聚乙烯醇载药微球介入栓塞原发性肝癌应用效果

Intrinsically stretchable polymer semiconductor based electronic skin for multiple perceptions of force,temperature,and visible light

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Nano Research 2023年第1期16卷 1196-1204页

作者： Dongjuan Liu Pengcheng Zhu Fukang Zhang Peishuo Li wenhao huang Chang Li Ningning Han Shuairong Mu Hao Zhou Yanchao Mao Key Laboratory of Materials Physics Ministry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450001China

As a stretchable seamless device,electronic skin(E-skin)has drawn enormous interest due to its skin-like sensing *** the basic perception of force and temperature,multiple perception that is beyond existing functions of human skin is becoming an important direction for E-skin ***,the present E-skins for multiple perceptions mainly rely on different sensing materials and heterogeneous integration,resulting in a complex device ***,their stretchability is usually achieved by the complicated microstructure design of rigid ***,we report an intrinsically stretchable polymer semiconductor based E-skin with a simple structure for multiple perceptions of force,temperature,and visible *** E-skin is on the basis of poly(3-hexylthiophene)(P3HT)nanofibers percolated polydimethylsiloxane(PDMS)composite polymer semiconductor,which is fabricated by a facile solution *** E-skin shows reliable sensing capabilities when it is used to perceive strain,pressure,temperature,and visible *** on the E-skin,an intelligent robotic hand sensing and controlling system is further *** with conventional E-skins for multiple perceptions,this E-skin only has a simple monolayer sensing membrane without the need of combining different sensing materials,heterogeneous integration,and complicated microstructure *** a strategy of utilizing intrinsically stretchable polymer semiconductor to create simple structured E-skin for multiple perceptions will promote the development of E-skins in a broad application scenario,such as artificial robotic skins,virtual reality,intelligent gloves,and biointegrated electronics.

关键词： electronic skin stretchable polymer semiconductor multiple perception visible light artificial robotic skin

Ultrathin organic solvent nanofiltration membrane with polydopamine-HKUST-1 interlayer for organic solvent separation

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Journal of Environmental Sciences 2024年第7期141卷 182-193页

作者： Haike Li Xindong Li Guozai Ouyang Lijinhong huang Lang Li wenhao Li Wanfu huang Duokun Li Ganzhou Key Laboratory of Basin Pollution Simulation and Control Jiangxi University of Science and TechnologyGanzhou 341000China Innovation Center for Water Quality Security Technology at Ganjiang River Basin Jiangxi University of Science and TechnologyGanzhou 341000China School of Architecture and Design Jiangxi University of Science and TechnologyGanzhou 341000China WA School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityWA 6845Australia School of Materials Science and Engineering Tiangong UniversityTianjin 300387China

Polydopamine(PDA)and metal-organic skeleton HKUST-1 were co-deposited on the base membrane of hexamethylenediamine(HDA)-crosslinked polyetherimide(PEI)ultrafiltration membrane as the interlayer,and high-throughput organic solvent nanofiltration membrane(OSN)was prepared by interfacial polymerization and solvent activation *** polyamide(PA)layer surface roughness from 28.4 nm in PA/PEI to 78.3 nm in PA/PDA-HKUST-10.6/PEI membrane,reduced the thickness of the separation layer from 79 to 14 nm,and significantly improved the hydrophilic,thermal and mechanical *** flux of the PA/PDA-HKUST-10.6/PEI membrane in a 0.1 g/L Congo Red(CR)ethanol solution at 0.6 MPa test pressure reached 21.8 L/(m^(2)·hr)and the rejection of CR was 92.8%.Solvent adsorption test,N,N-dimethylformamide(DMF)immersion experiment,and long-term operation test in ethanol showed that the membranes had high solvent *** solvent flux test demonstrated that,under the test pressure of 0.6 MPa,the flux of different solvents ranked as follows:methanol(56.9 L/(m^(2)·hr))>DMF(39.6 L/(m^(2)·hr))>ethanol(31.2 L/(m^(2)·hr))>IPA(4.5 L/(m^(2)·hr))>N-hexane(1.9 L/(m^(2)·hr)).The ability of the membranes to retain dyes in IPA/water dyes solution was also *** flux of the membrane was 30.4 L/(m^(2)·hr)and the rejection of CR was 91.6%when the IPA concentration reached 50%.This OSN membrane-making strategy is economical,environment-friendly and efficient,and has a great application prospect in organic solvent separation systems.

关键词： Interfacial polymerization Organic solvent nanofiltration Interlayer Metal-organic frameworks Polydopamine

基于熵值-可拓模型的老旧小区绿色改造对城市可持续发展的评价研究——以某市老旧小区绿色改造项目为例

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项目管理技术 2024年第8期22卷 34-41页

作者：李春晓乔冬雪李金泮秦文怡黄文豪河北建筑工程学院河北张家口075000

城市可持续发展是城市经济发展、社会进步、环境协调三者高度和谐的过程。而城市更新强调以人为本,重视人居环境的改善和城市发展的提升,更新方式应实现社会、经济、环境多维价值的协调统一,从而促进城市的可持续发展。老旧小区绿色改... 详细信息

城市可持续发展是城市经济发展、社会进步、环境协调三者高度和谐的过程。而城市更新强调以人为本,重视人居环境的改善和城市发展的提升,更新方式应实现社会、经济、环境多维价值的协调统一,从而促进城市的可持续发展。老旧小区绿色改造是城市更新的重要途径之一,其中绿色改造是指在改造过程中节约资源、材料、土地、能源等,并对城市可持续发展产生影响的改造。基于此,从城市更新视角,建立老旧小区绿色改造对城市可持续发展的评价指标体系,并在此基础上应用熵值-可拓模型对实际项目进行评价,验证模型的可行性,进而对老旧小区绿色改造提出合理建议。

关键词：城市更新绿色改造城市可持续发展熵权-可拓

Direct fabrication of flexible tensile sensors enabled by polariton energy transfer based on graphene nanosheet films

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Nanotechnology and Precision Engineering 2023年第1期6卷 1-11页

作者： Xi Zhang Junchi Ma wenhao huang Jichen Zhang Chaoyang Lyu Yu Zhang Bo Wen Xin Wang Jing Ye Dongfeng Diao College of Mechatronics and Control Engineering Shenzhen UniversityShenzhen 518060China Research Center of Medical Plasma Technology Shenzhen UniversityShenzhen 518060China Shenzhen Milebot Robotics Co. Ltd.Shenzhen 518060China

A fundamental problem in the direct manufacturing of flexible devices is the low melting temperature of flexible substrates,which hinders the development of flexible *** here is an electron-cyclotron-resonance sputtering system that can batch-fabricate devices directly on flexible substrates under a low temperature by virtue of the polariton energy transfer between the plasma and the *** graphene nanosheet-embedded carbon(F-GNEC)films are manufactured directly on polyimide,polyethylene terephthalate,and polydimethylsiloxane,and how the substrate bias(electron energy),microwave power(plasma flux and energy),and magnetic field(electron flux)affect the nanostructure of the F-GNEC films is investigated,indicating that electron energy and flux contribute to the formation of standing graphene nanosheets in the *** films have good uniformity of distribution in a large size(17 mm×17 mm),and tensile and angle sensors with a high gauge factor(0.92)and fast response(50 ms)for a machine hand are obtained by virtue of the unique nanostructure of the F-GNEC *** work sheds light on the quantum manufacturing of carbon sensors and its applications for intelligent machine hands and virtual-reality technology.

关键词： Direct flexible fabrication Graphene nanosheets film Polariton energy transfer Flexible sensor Quantum manufacturing

Microstructure Evolution and Mechanical Properties of Friction Stir Welded Al-Cu-Li Alloy

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Acta Metallurgica Sinica(English Letters) 2024年第5期37卷 855-871页

作者： Peng Chen wenhao Chen Jiaxin Chen Zhiyu Chen Yang Tang Ge Liu Bensheng huang Zhiqing Zhang School of New Energy and Materials Southwest Petroleum UniversityChengdu 610500China Sichuan Provincial Engineering Research Center of Advanced Materials Manufacturing Technology for Shale Gas High-Efficient Exploitation Southwest Petroleum UniversityChengdu 610500China College of Materials Science and Engineering Chongqing UniversityChongqing 400045China School of Mechatronic Engineering Southwest Petroleum UniversityChengdu 610500China School of Robot Engineering Yangtze Normal UniversityChongqing 408100China

The investigation concentrates on friction stir welded(FSW)Al-Cu-Li alloy concerning its local microstructural evolution and mechanical *** grain features were characterized by electron back scattered diffraction(EBSD)technology,while precipitate characterization was conducted by using transmission electron microscopy(TEM)aligned along[011]Al and[001]Al zone *** mechanical properties are evaluated through micro-hardness and tensile *** can be found that nugget zones exhibit finely equiaxed grains evolved through complete dynamic recrystallization(DRX),primarily occurring in continuous dynamic recrystallization(CDRX)and discontinuous dynamic recrystallization(DDRX).In the thermal-mechanically affected zone(TMAZ),numerous sub-structured grains,exhibiting an elongated morphology,were created due to partial DRX,signifying the dominance of CDRX,DDRX,and geometric dynamic recrystallization(GDRX)in this region.T_(1)completely dissolves in the nugget zone(NZ)leading to the formation of Guinier-Preston zones and increase ofδ′,β′and S′.Conversely,T_(1)partially solubilizes in TMAZ,the lowest hardness zone(LHZ)and heat affected zone(HAZ),and the residual T_(1)undergoes marked coarsening,revealing various T_(1)*** solubilization and coarsening of T_(1)are primary contributors to the degradation of hardness and strength.θ′primarily dissolves and coarsens in NZ and TMAZ,whilst this precipitate largely coarsens in HAZ and LHZ.σ,TB,grain boundary phases(GBPs)and precipitate-free zone(PFZ)are newly generated during FSW.σexists in the TMAZ,LHZ and HAZ,whereas TB nucleates in *** and PFZ mostly develop in LHZ and HAZ,which can cause strain localization during tensile deformation,potentially leading to LHZ joint fracture.

关键词： Al-Cu-Li alloy Friction stir welding Microstructure evolution Mechanical properties