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Well-controlled 2D squares from conjugated block copolymers

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Science China Chemistry 2018年第11期61卷 1345-1346页

作者： Pan Zhang Guosong chen Department of Macromolecular Sciences Fudan University

Nanoscale two-dimensional （2D） polymer-based platelet structures are of considerable interest for a range of applications [1]. In principle, solution self-assembly of block copolymers （BCPs） provides a convenient route to analogous planar nanostructures derived from soft matter [2]. However, the formation of2D platelet micelles is generally uncommon relative to other morphologies. In literature.

关键词：共聚物控制 2D 广场应用程序板结构聚合物软物质

Electro-oxidation of hydrazine shows marcusian electron transfer kinetics

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Science China Chemistry 2021年第2期64卷 322-329页

作者： Ruiyang Miao Lifu chen Richard G Compton Department of Chemistry Physical and Theoretical Chemistry LaboratoryUniversity of OxfordSouth Parks RoadOxfordOX13QZUK

Although hydrazine(N2 H4) oxidation in an electrochemical environment has been of great interest for years,its intrinsic electron transfer kinetics remain *** report that the phenomenological Butler-Volmer(BV) theory is not appropriate for interpreting the process of hydrazine oxidation for which an astonishingly wide range of transfer coefficients,Tafel slopes and diffusion coefficient have been previously *** Tafel analysis for voltammetry recorded at Glassy Carbon(GC)electrodes reveals a strong potential dependence of the anodic transfer coefficient,consistent with the symmetric Marcus-Hush(sMH) *** to the relationship β=λ+FEf^0/2λ-F/2λ E,the reorganization energy(0.35±0.07 eV) and an approximate formal potential of the rate-determining first electron transfer were successfully extracted from the voltammetric responses.

关键词： hydrazine electrode kinetics transfer coefficient Butler-Volmer theory Marcus-Hush theory

Human pangenome:far-reaching implications in precision medicine

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Frontiers of Medicine 2024年第2期18卷 403-409页

作者： Yingyan Yu Hongzhuan chen Department of General Surgery of Ruijin Hospital Shanghai Institute of Digestive Surgeryand Shanghai Key Laboratory for Gastric NeoplasmsShanghai Jiao Tong University School of MedicineShanghai200025China Shuguang Lab for Future Health Shanghai Frontier Science Center of TCM Chemical BiologyShanghai University of Traditional Chinese MedicineShanghai201203China

*** May 11,2023,the internationally renowned journal Nature announced that a first draft of the human pangenome reference has been constructed[1].This research was carried out by the Human Pangenome Reference Consortium(HPRC).One month later,on June 14,2023,a pangenome reference of 36 Chinese populations was published on journal Nature[2],which was performed by Chinese Pangenome Consortium(CPC).As the scientists pointed out that since the Human Genome Project(HGP)published the human reference genome,it provided a reference blueprint for genomic ***,the limitations of the human reference genome have gradually emerged,and it is difficult to reflect the genome diversity of the"human"species.

关键词： Human journal limitations

Effects of Poloidal Rotation and Medium-Z Impurity Radiation on MARFE Instability in Tokamak Edge

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Chinese Physics Letters 1995年第3期12卷 167-170页

作者： chen Xiaoping GAO Qingdi Southwestern Institute of Physics Chengdu 610041

Multifaceted asymmetric radiation from the edges(MARFEs)are studied on the basis of radiative condensation *** role of medium-Z impurity radiation and its association with the soft density limit are examined.A rigid p... 详细信息

关键词： instability. Impurity rotation

Absolute Configurations of Tonkinin A and B: Two New Acetogenins from Uvaria Tonkinensis

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Chinese Chemical Letters 1997年第9期8卷 789-790页

作者： chen, Y Yu, DQ CHINESE ACAD MED SCI INST MAT MEDBEIJING 100050PEOPLES R CHINA BEIJING UNION MED COLL BEIJING 100050PEOPLES R CHINA

The absolute stereochemistries of Annonaceous acetogenins, tonkinin A and B, have been established by the use of the convenient conversion to their formaldehyde acetal derivatives and the subsequent application of the... 详细信息

关键词： chen Absolute Configurations of Tonkinin A and B

Emergent single-balloon enteroscopy for overt bleeding of small intestinal vascular malformation

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World Journal of Gastroenterology 2018年第1期24卷 157-160页

作者： chen-Shuan Chung Kuan-Chih chen Yueh-Hung Chou Kuo-Hsin chen Division of Gastroenterology and Hepatology Department of Internal MedicineFar Eastern Memorial HospitalNew Taipei City 22060Taiwan College of Medicine Fu Jen Catholic UniversityNew Taipei City 24205Taiwan Taiwan Association for the Study of Small Intestinal Diseases(TASSID) Taoyuan City 33305Taiwan Department of Anatomical Pathology Far Eastern Memorial HospitalNew Taipei City 22060Taiwan Department of Surgery Far Eastern Memorial HospitalNew Taipei City 22060Taiwan Department of Electrical Engineering Yuan Ze UniversityNew Taipei City 22060Taiwan

A 28-year-old man presented with anemia symptoms and intermittent tarry stool passage for three days. No stigmata of hemorrhage were identified using esophagogastroduodenoscopy, ileocolonoscopy, and contrast-enhanced computed tomography. He then developed massive tarry stool passage with profound hypovolemic shock and hypoxic respiratory failure. Emergent angiography revealed active bleeder, probably from the jejunal branches of the superior mesenteric artery, but embolization was not performed due to possible subsequent extensive bowel ischemia. His airway was secured via endotracheal intubation with ventilator support, and emergent antegrade singleballoon enteroscopy was performed at 8 h after clinical overt bleeding occurrence; the procedure revealed a 2-cm pulsating subepithelial tumor with a protrudingblood plug at the distal jejunum. Laparoscopic segmental resection of the jejunum with end-to-end anastomosis was performed after emergent endoscopic tattooing localization. Pathological examination revealed a vascular malformation in the submucosa with an organizing thrombus. He was uneventfully discharged 5 d later. This case report highlights the benefit of early deep enteroscopy for the treatment of small intestinal bleeding.

关键词： Early endoscopy Small intestine Deep enteroscopy Device-assisted enteroscopy Obscure gastrointestinal bleeding Vascular malformation

A Static Solution of Yang-Mills Equation on Anti-de Sitter Space

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Communications in Theoretical Physics 2009年第5期51卷 794-796页

作者： chen Li REN Xin-An Department of Mathematics China University of Mining and Technology Xuzhou 221116 China

Since product metric on AdS space has played a very important role in Lorentz version of AdS/CFT correspondence, the Yang Mills equation on AdS space with this metric is considered and a static solution is obtained in... 详细信息

关键词： anti-de sitter space Yang Mills equation spin connection

Synthesis of melamine-glucose resin adhesive

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Science China Chemistry 2005年第z1期48卷 29-32页

作者： chen Shuanhu ZHANG Lei Department of Chemistry Northwest University Xi'an 710069 China Department of Chemistry Northwest University Xi'an 710069 China

The synthesis of a novel melamine-glucose adhesive that is similar to urea-formaldehyde adhesive is reported in this paper. The conditions of synthesis, such as the initial pH, the quantity of catalyst, the temperature of reaction, the percentage of each reactant and the time of reaction, were optimized by using the orthogonal experimental method.

关键词： D-glucose, melamine, resin adhesive, orthogonal experimental method.

Fundamental Understanding and Optimization Strategies for Dual‑Ion Batteries:A Review

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Nano-Micro Letters 2023年第8期15卷 205-224页

作者： Chong chen Chun‑Sing Lee Yongbing Tang Advanced Energy Storage Technology Research Center Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055People’s Republic of China University of Chinese Academy of Sciences Beijing 100049People’s Republic of China Center of Super‑Diamond and Advanced Film(COSDAF) City University of Hong KongKowloon 999077Hong KongSARPeople’s Republic of China

There has been increasing demand for high-energy density and longcycle life rechargeable batteries to satisfy the ever-growing requirements for nextgeneration energy storage *** all available candidates,dual-ion batteries(DIBs)have drawn tremendous attention in the past few years from both academic and industrial battery communities because of their fascinating advantages of high working voltage,excellent safety,and environmental ***,the dynamic imbalance between the electrodes and the mismatch of traditional electrolyte systems remain *** fully employ the advantages of DIBs,the overall optimization of anode materials,cathode materials,and compatible electrolyte systems is urgently ***,we review the development history and the reaction mechanisms involved in ***,the optimization strategies toward DIB materials and electrolytes are *** addition,their energy-related applications are also ***,the research challenges and possible development directions of DIBs are outlined.

关键词： Dual-ion batteries Reaction mechanisms Optimization strategies Energy storage