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Prognostic factors for lacrimal gland adenoid cystic carcinoma:a retrospective study in chinese patients

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International Journal of Ophthalmology(English edition) 2024年第8期17卷 1423-1430页

作者： lu-Di yang Shi-Chong Jia Jie yang Xin Song Ye-Fei {3. Xian-Qun Fan Department of Ophthalmology Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai 200011China Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology Shanghai 200011China Tianjin Eye Hospital Tianjin Key Lab of Ophthalmology and Visual ScienceNankai University Affiliated Eye HospitalTianjin Eye InstituteTianjin 300074China

AIM:To explore the prognostic factors for lacrimal gland adenoid cystic carcinoma(LGACC)in chinese ***:Clinical and histopathological data were reviewed in patients with pathologically confirmed *** recurrence,metastasis,and disease-specific death were the main outcome *** and multivariate analyses were performed by the Kaplan-Meier method and a Cox proportional hazard ***:This retrospective cohort study included 45 patients with pathologically confirmed LGACC between January 2008 and June ***(T)classification(P=0.005),nodal metastasis(N)classification(P=0.018)and positive margin(P=0.008)were independent risk factors of recurrence;T(P=0.013.and N(P=0.003.classification and the basaloid tumor type(P=0.03.)were independent risk factors for metastasis;T classification(PluSION:Histological subtype should be emphasized when evaluating prognosis and guiding *** radiotherapy may reduce the risk of metastasis in patients with basaloid component.

关键词： lacrimal gland adenoid cystic carcinoma risk factors prognostic analysis histological subtypes

Dielectric Constant Calculation of Poly(vinylidene fluoride)Based on Finite Field and Density Functional Theory

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chinese Journal of Polymer Science 2024年第5期42卷 655-662,I0009页

作者： yong-Zhi Lin lu-Kun Feng Ya-Dong Li Chao-Fan Chang Cai-Zhen Zhu Ming-Liang wang Jian Xu College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen518055China Chengdu institute of Organic Chemistry Chinese Academy of SciencesChengdu610041China

In this study,we proposed a novel method that integrates density functional theory(DFT)with the finite field method to accurately estimate the polarizability and dielectric constant of *** approach effectively accounts for the influence of electronic and geometric conformation changed on the dielectric *** validated our method using polyethylene(PE)and polytetrafluoroethylene(PTFE)as benchmark materials,and found that it reliably predicted their dielectric ***,we explored the impact of conformation variations in poly(vinylidene fluoride)(PVDF)on its dielectric constant and *** resulting dielectric constants ofα-andγ-PVDF(3.0)showed excellent agreement with crystalline PVDF in *** findings illuminate the relationship between PVDF’s structural properties and its electrical behavior,offering valuable insights for material design and applications.

关键词： Dielectric constant PVDF Finite field DFT

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High-Performance Recyclable Furan-based Epoxy Resin and Its Carbon Fiber Composites with Dense Hydrogen Bonding

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chinese Journal of Polymer Science 2024年第1期42卷 73-86,I0008页

作者： Chang-Bo Zhao lu-Kun Feng Hui Xie Ming-Liang wang Bing Guo Zhi-yong Xue Cai-Zhen Zhu Jian Xu Advanced Materials Research institute North China Electric Power UniversityBejing 102206China institute of Low-Dimensional Materials Genome Initiative College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen 518060China Chengdu institute of Organic Chemistry Chinese Academy of SciencesChengdu 610041China School of Science and Shenzhen Key Laboratory of Flexible Printed Electronics Technology and Shenzhen Key Laboratory of Advanced Functional Carbon Materials Research and Comprehensive ApplicationHarbin Institute of TechnologyShenzhen 518055China

The emerging biomass-based epoxy vitrimers hold great potential to fulfill the requirements for sustainable development of *** the existence of dynamic chemical bonds in vitrimers often reduces both the thermal and mechanical properties of epoxy resins, it is challenging to produce recyclable epoxy vitrimers with both excellent mechanical properties and good thermal stability. Herein, a monomer 4-(((5-(hydroxymethyl)furan-2-yl)methylene)amino)phenol(FCN) containing furan ring with potential to form high density of hydrogen bonding among repeating units is designed and copolymerized with glycerol triglycidyl ether to yield epoxy resin(FCN-GTE), which intrinsically has dual hydrogen bond networks, dynamic imine structure and resultant high performance. Importantly, as compared to the BPA-GTE, the FCN-GTE exhibits significantly improved mechanical properties owing to the increased density of hydrogen bond network and physical crosslinking interaction. Furthermore, density functional theory(DFT) calculation and in situ FTIR analysis is conducted to decipher the formation mechanism of hydrogen bond network. In addition, the FCN-GTE possesses superior UV shielding, chemical degradation, and recyclability because of the existence of abundant imine bonds. Notably, the FCN-GTE-based carbon fiber composites could be completely recycled in an amine *** study provides a facile strategy for synthesizing recyclable biomass-based high-performance epoxy vitrimers and carbon fiber composites.

关键词： Furan Hydrogen bond network Dynamic Schiff base Carbon fiber composites Recycling

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Site-directed mutagenesis of bifunctional riboflavin kinase/FMN adenylyltransferase via CRISPR/Cas9 to enhance riboflavin production

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Synthetic and Systems Biotechnology 2024年第3期9卷 503-512页

作者： Bing Fu Meng Chen Xianfeng bao Jiajie lu Zhiwen Zhu Fuyao Guan Chuyang Yan Peize {3. Linglin Fu Ping Yu College of Food Science and Biotechnology Zhejiang Gongshang University149 Jiaogong RoadHangzhouZhejiang Province310035People’s Republic of China College of Forestry Science and Technology Lishui Vocational and Technical College357 Zhongshan Street NorthLishuiZhejiang Province323000People’s Republic of China Lishui institute for Quality Inspection and Testing 395 Zhongshan StreetLishuiZhejiang Province323000People’s Republic of China

Vitamin B_(2)is an essential water-soluble *** most prokaryotes,a bifunctional enzyme called FAD synthase catalyzes the successive conversion of riboflavin to FMN and *** this study,the plasmid pNEW-AZ containing six key genes for the riboflavin synthesis was transformed into strain R2 with the deleted FMN riboswitch,yielding strain *** R5 strain could produce 540.23.5.40 mg/L riboflavin,which was 10.61%higher than the R4 strain containing plasmids pET-AE and pAC-Z harboring six key *** further enhance the production of riboflavin,homology matching and molecular docking were performed to identify key amino acid residues of FAD *** point mutation sites were *** comparing riboflavin kinase activity,mutations of T203. and N210D,which respectively decreased by 29.90%and 89.3.%compared to wild-type FAD synthase,were selected for CRISPR/Cas9 gene editing of the genome,generating engineered strains R203.and ***-AZ was transformed into R203.generating R6.R6 produced 657.3.±47.48 mg/L riboflavin,a 21.69%increase compared to *** study contributes to the high production of riboflavin in recombinant *** BL21.

关键词： Vitamin B_(2) FAD synthase Escherichia coli BL21 Riboflavin kinase CRISPR/Cas9

A New Chirality Invertible Photoswitch:Light-Driven Axially Chiral Hydrazone Enabling Dynamic Handedness Inversion of Self-Organized Helical Superstructure

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CCS Chemistry 2024年第8期6卷 2011-2020页

作者： Ruochen Lan Jinying bao Zhaozhong Li Zizheng wang Zichen wang Qian wang Lanying Zhang Jiumei Xiao Huai yang institute of Advanced Materials College of Chemistry and Chemical EngineeringJiangxi Normal UniversityNanchang 330022 Beijing Advanced Innovation Center for Materials Genome Engineering School of Materials Science and EngineeringPeking UniversityBeijing 100871 School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083 Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083 Key Laboratory of Polymer Chemistry and Physics of Ministry of Education Peking UniversityBeijing 100871 School of Mathematics and Physics University of Science and Technology BeijingBeijing 100083

Inspired by nature,dynamic self-organized helical superstructures are becoming attractive as building blocks in soft photonic crystals and advanced chiroptical ***,a chirality invertible hydrazone photoswitch,possessing high helical twisting power(HTP)was judiciously designed and *** to the photoinduced configuration changes of the hydrazone photoswitch,it displayed superior thermal stability and strikingly reversible HTP *** incorporating a novel chiral hydrazone(CH)into the liquid crystal(LC)host,a handedness invertible cholesteric liquid crystal(CLC)helical superstructure with high thermal stability and light-modulated photonic bandgap was *** inferred that the mechanism of chirality inversion of the novel CH photoswitch derived from changes in the dihedral angle between the two naphthalene rings induced by hydrazone ***,the influence of chemical structures on its photoresponsiveness was ***,the potential applications of this advanced light-driven CLC in soft photonic crystals,showing erasable and rewritable colorful patterns and chiroptical templates to induce handedness invertible circularly polarized luminescence were illustrated.

关键词： chirality inversion hydrazone photoswitch cholesteric liquid crystals dynamic photonic crystals dynamic circularly polarized luminescence

Online estimation and characteristic analysis of double nugget diameters during aluminum/steel resistance spot welding process

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Journal of Iron and Steel Research International 2024年第8期31卷 2053-2067页

作者： Kang Zhou Wen-xiao Yu bao-kai Ren Gang wang School of Mechatronical Engineering Beijing Institute of TechnologyBeijing 100081China

Online estimation of the double nugget diameters was performed by means of a back propagation neural *** double nugget diameters were obtained using actual welding experiment and numerical simulation,according to different characteristics of aluminum nugget and steel *** input of the neural network was some key characteristic parameters extracted from dynamic power signal,which were peak point,knee point and their variation rate over time,as well as heat energy delivered into the welding *** architecture of the neural network was confirmed by confirming the number of neurons in hidden layer through a series of *** key parameters of the neural network were obtained by means of training 81 arrays of data ***,the neural network was used to test the remaining 20 arrays of verifying data set,and the results showed that both of the mean errors for the two nugget diameters were below 3..In addition,corresponding analyses showed that the accuracy of two nugget diameters was higher than that of tensile-shear strength.

关键词： Resistance spot welding Aluminum Steel Double nugget Dynamic power signal.Neural network

Metal-organic frameworks with dinuclear metal centers for synergistically boosting COphotoreduction

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Science china Chemistry 2024年

作者： Hui-Feng wang Wen-Jie Shi Yu-Xin yang bao-Xia Dong Tong-Bu {3. Di-Chang Zhong School of Chemistry and Chemical Engineering Yangzhou University institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology

Dinuclear metal synergistic catalysis （DMSC） has been proved powerful in boosting CO2reduction,while this has not been achieved in heterogeneous catalysts with long-range order *** this study,we,by introduction of metal catalytic centers into an indium-based metal-organic framework （MOF）,obtained a series of isostructural In-MOFs,including three MOFs with mononuclear metal catalytic center （M-In）,three MOFs with dinuclear homometallic catalytic centers （MM-In）,and three MOFs with dinuclear heterometallic catalytic centers (MM’-In,M/M’=Co（II）,Ni（II）,Zn（II）).It was found that all these MOFs can serve as catalysts for photochemical CO2reduction to *** with M-In,the catalytic activities of MM-In were obviously enhanced,and that of MM’-In was further significantly *** example,the CO yield of CoZn-In reaches a record value of 12,700μmol g-1h-1,which is 4.0,8.1,9.4,and 18.6-fold higher than that of CoCo-In,ZnZn-In,Co-In,and Zn-In,***,the catalytic activities of CoNi-In and NiZn-In also show different fold increase than those of corresponding dinuclear homometallic and mononuclear metallic *** results of control experiments and theoretical calculation reveal that the higher catalytic activities of MM-In over M-In can be ascribed to the DMSC effect,and the higher catalytic activity of MM’-In over MM-In can be ascribed to the strengthened DMSC *** work reveals the relationship between DMSC effect and bimetal centers in CO2reduction,which provides new insights into the DMSC and paves a new way to design highly active catalysts for photochemical CO2reduction.

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Innovative Solutions for High-Performance Silicon Anodes in Lithium-Ion Batteries:Overcoming Challenges and Real-World Applications

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Nano-Micro Letters 2024年第9期16卷 341-384页

作者： Mustafa Khan Suxia Yan Mujahid Ali Faisal Mahmood yang Zheng Guochun Li Junfeng Liu Xiaohui Song yong wang institute for Energy Research Jiangsu UniversityZhenjiang 212013JiangsuPeople’s Republic of China School of Energy and Power Engineering Jiangsu UniversityZhenjiang 212013JiangsuPeople’s Republic of China School of Materials Science and Engineering Hefei University of TechnologyHefei 230009AnhuiPeople’s Republic of China

Silicon(Si)has emerged as a potent anode material for lithium-ion batteries(LIBs),but faces challenges like low electrical conductivity and significant volume changes during lithiation/delithiation,leading to material pulverization and capacity *** research on nanostructured Si aims to mitigate volume expansion and enhance electrochemical performance,yet still grapples with issues like pulverization,unstable solid electrolyte interface(SEI)growth,and interparticle *** review delves into innovative strategies for optimizing Si anodes’electrochemical performance via structural engineering,focusing on the synthesis of Si/C composites,engineering multidimensional nanostructures,and applying non-carbonaceous *** a stable SEI is vital to prevent electrolyte decomposition and enhance Li^(+)transport,thereby stabilizing the Si anode interface and boosting cycling Coulombic *** also examine groundbreaking advancements such as self-healing polymers and advanced prelithiation methods to improve initial Coulombic efficiency and combat capacity *** review uniquely provides a detailed examination of these strategies in real-world applications,moving beyond theoretical *** offers a critical analysis of these approaches in terms of performance enhancement,scalability,and commercial *** conclusion,this review presents a comprehensive view and a forward-looking perspective on designing robust,high-performance Si-based anodes the next generation of LIBs.

关键词： Silicon anode Energy storage Nanostructure Prelithiation Binder

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Reliability Analysis of a Switched Reluctance Starter/Generator

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Protection and Control of Modern Power Systems 2024年第1期9卷 112-121页

作者： Hao Chen Fan yang Lijun Xu Qiwei lu Xiqiang Chang Xing wang Lijiang Dong Yi Wen Jiang Chen Gang Miao Jianmin Hu Guanjun wang Wei Li Xiaohua bao School of Electrical Engineering China University of Mining and TechnologyXuzhou 221116China Xinjiang institute of Engineering Urumqi 830000China International Joint Research Center of Central and Eastern European Countries on New Energy Electric Vehicle Technology and Equipment Xuzhou 221008China International Cooperation Joint Laboratory of New Energy Power Generation and Electric Vehicles of Jiangsu Province Colleges and Universities Xuzhou 221008China School of Information and Electrical Engineering China University of Mining and TechnologyXuzhouChina china University of Mining and Technology(Beijing) BeijingChina State Grid Xingjiang Electric Power Co. Ltd.UrumqiXinjiangChina china University of Mining and Technology XuzhouChina State Grid Xinjiang Company Limited Electric Power Research institute UrumqiXinjiangChina Xinjiang Fukang Pumped Storage Power Company Limited UrumqiXinjiangChina State Grid Urumqi Electric Power Supply Company UrumqiXinjiangChina Wuxi Inspection and Testing Certification Research institute WuxiJiangsuChina Anhui Wannan Electric Machine Co. Ltd.WannanAnhuiChina Hefei University of Technology in Electrical and Automation Engineering

In this paper,the combined k-out-of-n:G model and reliability block diagram model is used to analyze the reliability of a switched reluctance starter/generator ***,the different operational modes of a switched reluctance motor starter/generator are analyzed,and the fault states of the system are briefly *** the fault criteria of the system in different operational states are put ***,a relia-bility block diagram model is established to calculate the system-level reliability,and the k-out-of-n:G model is adopted to analyze the reliability of each part of the switched reluctance starter/generator *** verify effectiveness,the first-order Markov model is also used to analyze the reliability of each part of the switched reluc-tance starter/generator *** the compu-tational complexity and accuracy of the system,the k-out-of-n:G model is more suitable for system component level reliability ***,a 6/4 switched reluctance motor is used as the simulated and experimental platform *** final results verify the effectiveness of the reliability analysis model.

关键词： system switched generator