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science in china,Ser.B 1987年第8期30卷 809-815页

作者：沈之荃王征王国平俞陆平 department of Chemistry zhejiang university hangzhou

Polyacetylene is the most hopeful electrical conductive polymer, which is being exploited to fabricate plastic battery, solar energy cell etc. The catalysts used for the synthesis of high cis-polyacetylene films are mainly Ti（OC4H9）4-AlEt8 and rare-earth coordination catalysts as well as Co（NO3）2-NaBH4. This paper reports features of acetylene polymerization by novel catalysts composed of transition metal 2-ethyl hexyl phosphonates of the fourth periodic transitional series-Ti, V, Cr, Mn, Fe, Co, Ni and aluminium trialkyls. Except Ni catalyst system, all catalytic systems can promote polymerization of acetylene at room temperature to form a silvery-grey polyacetylene film with rich cis-content and high crystallinity. Under the experimental conditions tested, the catalytic activity of various systems shows the following sequence: Fe>Ti～V>Cr>Mn>Co>Ni The polyacetylene films obtained were characterized.

关键词： Cr SYNTHESIS OF POLYACETYLENE BY NOVEL CATALYSTS COMPOSED OF TRANSITION METAL 2-ETHYL HEXYL PHOSPHONATES AND ALUMINIUM TRIALKYLS AI PA MT than Ni

Shared mooring systems for offshore floating wind farms: A review

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Energy Reviews 2024年第1期3卷 76-89页

作者： Hang Xu shengjie Rui Kanmin shen Liangliang jiang Haojie Zhang Long Teng zhejiang Key Laboratory of Offshore Geotechnics and Material College of Civil Engineering and ArchitectureZhejiang UniversityHangzhou310058China Norwegian Geotechnical Institute Sandakerveien 140Oslo0484Norway Powerchina Huadong engineering Corporation Limited Hangzhou311122China department of Chemical and Petroleum engineering The University of CalgaryCalgaryAlbertaCanada

Offshore wind energy,as a form of renewable power,has seen rapid development in recent *** fixedbottom wind turbines are typically used in water depths less than 50 m,the utilization of floating offshore wind turbines(FOWTs)becomes essential for deeper *** and effective mooring systems play a crucial role in making FOWTs commercially *** concept of a shared mooring system offers an innovative solution for deploying floating wind farms in clusters or arrays,which can reduce overall construction costs for large-scale floating wind *** is imperative to optimize the shared mooring arrangement for maximum cost-effectiveness and wind farm ***,implementing a shared mooring system introduces complexity to the dynamics of FOWTs,requiring the development of advanced simulation tools to meet modelling *** the shared mooring arrangement,mooring lines and anchors face more significant challenges,such as chain-seabed interactions,soil cyclic weakening,and anchor out-of-plane loading,which underscore the need for innovative,reliable,and efficient shared anchor *** article offers an overview of the current research status on shared mooring systems for floating wind farms,which might serve as a valuable reference for the construction of large-scale floating wind farms worldwide.

关键词： Floating offshore wind turbines Wind farm Shared mooring Shared anchor Renewable energy

Buckling,cracking,and spalling in sputter-deposited TiN and Ti-Si-N films

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Buckling,cracking,and spalling in sputter-deposited TiN and ...

Thiol-Disulfide Exchange Coordinates the Release of Nitric Oxide and Dexamethasone for Synergistic Regulation of Intestinal Microenvironment in Colitis

The Eighth International Conference on Fundamentals of Fracture（ICFF VIII）

作者： Zong-jian Liu~1 and Y.G.shen~(2 *) 1 College of Chemical engineering and Materials science zhejiang university of Technology hangzhou 300014 P.R. china 2 department of Manufacturing engineering & engineering Management City university of Hong Kong Tat Chee Avenue Kowloon Hong Kong

＜正＞It is well known that the intrinsic stress,tensile or compressive depending on the deposition conditions,can be generated during the growth of sputter-deposited thin *** the case of compressive stress,the residual stress can lead to the phenomena of film buckling,cracking,even *** this work,we report the stress-induced surface failure in sputter-deposited TiN and TiSi -N films.

关键词： Buckling Crack Nitrides Sputtering Thin films

来源： cnki会议评论

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Research 2024年第2期6卷 285-300页

作者： Junna Lu Tongfei Shi Chengxin Shi Fangman Chen Chao Yang Xiaochun Xie Zheng Wang He shen jiaqi Xu Kam W.Leong Dan Shao School of Biomedical sciences and engineering South China University of TechnologyGuangzhou International CampusGuangzhouGuangdong 510006China National engineering Research Center for Tissue Restoration and Reconstruction South China University of TechnologyGuangdong 510006China department of Plastic and Aesthetic Center The First Affliated Hospital of Zhejiang UniversityHangzhou 310000China department of Biomedical engineering Columbia UniversityNew YorkNY 10027USA School of Medicine South China University of TechnologyGuangzhouGuangdong 510006China CAS Key Laboratory of Nano-Bio Interface Suzhou Institute of Nano-Tech and NanoBionicsChinese Academy of SciencesSuzhou 215123China CAS Key Laboratory for Biomedical Efects of Nanomaterials&Nanosafety CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China Guangdong Provincial Key Laboratory of Biomedical engineering South China University of TechnologyGuangzhou 510006China Key Laboratory of Biomedical Materials and engineering of the Ministry of Education South China University of TechnologyGuangzhou 510006China

The cell-specific functions of nitric oxide(NO)in the intestinal microenvironment orchestrate its therapeutic effects in ulcerative *** most biomaterials show promise by eliciting the characteristics of NO,the insufficient storage,burst release,and pro-inflammatory side effects of NO remain as ***,we report the development of thiol-disulfide hybrid mesoporous organosilica nanoparticles(MONs)that improve the storage and sustained release of NO,broadening the therapeutic window of NO-based therapy against *** tailored NO-storing nanomaterials coordinated the release of NO and the immunoregulator dexamethasone(Dex)in the intestinal microenvironment,specifically integrating the alleviation of oxidative stress in enterocytes and the reversal of NO-exacerbated macrophage ***,such a synchronous operation was achieved by a self-motivated process wherein the thiyl radicals produced by NO release cleaved the disulfide bonds to degrade the matrix and release Dex via thiol-disulfide ***,the MON-mediated combination of NO and Dex greatly ameliorated intractable colitis compared with 5-aminosalicylic acid,even after delayed ***,our results reveal a key contribution of synergistic modulation of the intestinal microenvironment in NO-based colitis therapy and introduce thiol-disulfide hybrid nanotherapeutics for the management of inflammatory diseases and cancer.

关键词： sustained release disulfide

Efficient and bright broadband electroluminescence based on environmentfriendly metal halide nanoclusters

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Light(science & Applications) 2024年第4期13卷 727-737页

作者： Dingshuo Zhang Meiyi Zhu Yifan He Qingli Cao Yun Gao Hongjin Li Guochao Lu Qiaopeng Cui Yongmiao shen Haiping He Xingliang Dai Zhizhen Ye School of Materials science and engineering State Key Laboratory of Silicon and Advanced Semiconductor MaterialsZhejiang University310027 HangzhouChina Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials and engineering Research Centre of zhejiang Province Institute of WenzhouZhejiang University325006 WenzhouChina Wenzhou XINXINTAIJING Tech.Co.Ltd. 325006 WenzhouChina department of Chemistry Zhejiang Sci-Tech University310018 HangzhouChina

Broadband electroluminescence based on environment-friendly emitters is promising for healthy lighting yet remains an unprecedented challenge to *** copper halide-based emitters are competitive candidates for broadband emission,but their high-performance electroluminescence shows inadequate broad emission bandwidth of less than 90 ***,we demonstrate efficient ultra-broadband electroluminescence from a copper halide(CuI)nanocluster single emitter prepared by a one-step solution synthesis-deposition process,through dedicated design of ligands and subtle selection of *** CuI nanocluster exhibits high rigidity in the excitation state as well as dual-emissive modes of phosphorescence and temperature-activated delayed fluorescence,enabling the uniform cluster-composed film to show excellent stability and high photoluminescent *** consequence,ultra-broadband light-emitting diodes(LEDs)present nearly identical performance in an inert or air atmosphere without encapsulation and outstanding high-temperature operation performance,reaching an emission full width at half maximum(FWHM)of~120 nm,a peak external quantum efficiency of 13%,a record maximum luminance of~50,000 cd m^(−2),and an operating half-lifetime of 137 h at 100 cd m^(−2).The results highlight the potential of copper halide nanoclusters for next-generation healthy lighting.

关键词： halide cluster rigidity

THE polymerIZATION OF ACETYLENE BY COORDINATION CATALYSTS COMPOSED OF NEODYMIUM COMPOUND, ALUMINUM TRIALKYL AND A THIRD COMPONENT

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Chinese Journal of polymer science 1985年第4期3卷 367-372页

作者：张一峰蔡一平杨慕杰沈之荃 department of Chemistry zhejiang university hangzhou

This paper describes the polymerization of acetylene by coordination catalysts composed ofvarious neodymium compounds, (Nd (P204)3; Nd (P507)3; Nd （NO3）3 3P350; Nd （BA）3.2H2O; andNd （acac）3.2H2O), aluminum trialkyl and an electron donor. The catalysts show fairly high catalyticactivity and high cis stereospecificity on acetylene polymerization at 30℃.

关键词： AI Nd ALUMINUM TRIALKYL AND A THIRD COMPONENT THE polymerIZATION OF ACETYLENE BY COORDINATION CATALYSTS COMPOSED OF NEODYMIUM COMPOUND PA

Artificial synthesis of polyesters at ambient condition via consecutive CO_(2)electrolysis and fermentation

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Nano Research 2024年第7期17卷 6016-6025页

作者： Guiru Zhang Ning Ji Shiheng Lyu Baoxin Ni Peng shen Ke Ye Yuting Wang Xuheng jiang Hai Zhang Xi Liu Yongcheng Wang Kun jiang department of Laboratory Medicine of The First Affiliated Hospital&Liangzhu Laboratory Zhejiang University School of MedicineHangzhou 310058China Interdisciplinary Research Center School of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240China In-situ Centre for Physical sciences Frontiers Science Center for Transformative MoleculesSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong UniversityShanghai 200240China

Electrochemically converting CO_(2)into value-added chemicals is a promising approach to mitigate anthropogenic carbon emissions,yet largely limited to short-chained C_(1)–C_(3)***,we demonstrate a tandem artificial synthesis of biodegradable polyhydroxybutyrate(PHB)plastic from CO_(2)building *** synthesis of defects-enriched Bi catalyst is firstly demonstrated by plasma bombardment and following in situ electrochemical reduction,which delivers a HCOOH Faradaic efficiency above 80%at tunable concentration from 2 to 250 mM,an energy efficiency up to 41%,and a single-pass carbon conversion efficiency up to 60%.Annular dark field and second electron microscopic analysis,density functional theory(DFT)calcualtions,coupled with H-type and solid-state electrolyzer assessments,point out the vital role of defective and/or stepped Bi surface sites in promoting CO_(2)-to-HCOOH ***,as-synthesized high-purity HCOOH is used as the sole carbon source for C-chain growth within microbial fermentation reactor with Ralstonia eutropha,where activated formate dehydrogenase and increased metabolites related to Calvin–Benson–Bassham cycle are found to be responsible for the enhanced polyester accumulation.

关键词： CO_(2)electrolysis Bi catalyst vacancy site formic acid fermentation

Enhanced homing of mesenchymal stem cells for in situ niche remodeling and bone regeneration

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Nano Research 2024年第8期17卷 7449-7460页

作者： Yin Yuan Lijun Chen Jing Yang Sining Zhou Yangxin Fang Qi Zhang Ning Zhang Yifei Li Li Yuan Fan jia Shuo Ni Charlie Xiang State Key Laboratory for Diagnosis and Treatment of Infectious Diseases National Clinical Research Center for Infectious DiseasesNational Medical Center for Infectious DiseasesCollaborative Innovation Center for Diagnosis and Treatment of Infectious DiseasesThe First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China department of Biology The David H.Koch Institute for Integrative Cancer Research at MITMassachusetts Institute of TechnologyCambridgeMA 02139USA Research Units of Infectious disease and Microecology Chinese Academy of Medical SciencesHangzhou 310003China Innovative Precision Medicine(IPM)Group Hangzhou 311215China MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of zhejiang Province Department of CardiologySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou 310016China department of Cancer Immunology and Virology Dana-Farber Cancer InstituteBostonMA 02215USADepartment of ImmunologyHarvard Medical SchoolBoston MA 02115USA department of Orthopedic Surgery and Shanghai Institute of Microsurgery on Extremities Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiaotong University School of MedicineShanghai 200233China

Mesenchymal stem cells(MSCs)transplantation is a promising strategy for osteoporosis ***,limited sources and poor tissue-homing efficiency limit their clinical *** this study,we isolated a kind of MSCs from women’s menstrual blood(MenSCs)noninvasively and established a novel MSCs bone marrow-targeted delivery system by utilizing waterin-oil-in-water droplet *** were encapsulated withinβ-cyclodextrin-functionalized alginate microcapsules loaded with zoledronates,which has a high affinity for *** this delivery system,MenSCs could be preferentially delivered to the bone marrow tissues via intravenous infusion,and restored bone mass by remodeling the bone marrow niche in situ in ovariectomized mouse ***,scRNA-seq analysis demonstrated that those MenSCs homed to the bone marrow recruited CD4^(+)FOXP3^(+)natural regulatory T(nT_(reg))cells by secreting *** recruited nTreg promoted CD8^(+)T cells to secret Wnt family member 10B(WNT10B),activating the Wnt signaling in osteoblasts and thus promoting bone formation in situ in the bone *** study reveals a promising application of MenSCs in postmenopausal osteoporosis treatment and highlights the clinical value of MenSCs by encouraging women to reserve autologous MenSCs before menopause to prevent and alleviate postmenopausal osteoporosis.

关键词： mesenchymal stem cells microfluidics bone marrow homing stem cell niche postmenopausal osteoporosis

Al_2(SO_4)_3-CPAM复合絮凝剂在造纸脱墨废水中的应用

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水处理技术 2003年第2期29卷 99-101页

作者：杨鹜远钱锦文方明晖杨典勇沈之荃浙江大学高分子系浙江杭州310027 浙江大学方圆化工实业公司浙江杭州310013

实验制备了无机/有机高分子复合型絮凝剂,考察了这类絮凝剂的组成、用量以及造纸脱墨废水pH值对其絮凝效果的影响。发现复合絮凝剂比单一的无机或有机高分子絮凝剂具有更佳的絮凝效果,并对复合絮凝剂的絮凝机理进行了初步研究。在最佳... 详细信息

实验制备了无机/有机高分子复合型絮凝剂,考察了这类絮凝剂的组成、用量以及造纸脱墨废水pH值对其絮凝效果的影响。发现复合絮凝剂比单一的无机或有机高分子絮凝剂具有更佳的絮凝效果,并对复合絮凝剂的絮凝机理进行了初步研究。在最佳的复合絮凝剂的组成和废水的pH值的条件下,处理后的脱墨废水的悬浮物含量、COD和浊度可分别降低80%、75%和95%以上。

关键词：造纸脱墨废水复合絮凝剂悬浮物浊度造纸工业

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计算机软件可使用性设计的发展、标准及支持原则

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计算机工程与应用 2002年第5期38卷 89-91,98页

作者：张智君沈昉浙江大学理学院心理与行为科学系杭州310028

一些重要交互技术的设计和应用曾对计算机可使用性设计的发展起了重要的推动作用,该文对此进行了回顾,并由此总结出可学习性、可记忆性、功效性、错误率和用户满意度等五项可使用性设计标准。一些支持可使用性设计的相关原则,包括可学... 详细信息

一些重要交互技术的设计和应用曾对计算机可使用性设计的发展起了重要的推动作用,该文对此进行了回顾,并由此总结出可学习性、可记忆性、功效性、错误率和用户满意度等五项可使用性设计标准。一些支持可使用性设计的相关原则,包括可学习性原则、灵活性原则、可观察性原则、可恢复性原则和反应原则等,也被分析和讨论。

关键词：软件可使用性标准原则人-计算机交互系统计算机

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