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Journal of Energy Chemistry 2021年第10期30卷 135-140,I0004页

作者： Xuyan ni Jie Liu Haoqing Ji Libao Chen Tao qian Chenglin Yan College of Energy Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou 215006JiangsuChina State Key Laboratory for Powder Metallurgy Central South UniversityChangsha 410083HunanChina Light Industry Institute of Electrochemical Power Sources Suzhou 215006JiangsuChina

Covalent organic frameworks(COFs)are a kind of materials composed of organic blocks linked through robust covalent bonds[1,2].In these materials,the organic blocks are integrated into symmetric structures that extend infinitely under the guidance of topological diagram,founded by periodic skeletons and nanopores[3-5].On account of the extensive building blocks,variety of topology design diagram and the variety of linkages,various COFs with different functionalities can be designed and synthesized for versatile applications.

关键词： Lithium metal anodes Lithiophilic covalent organic frameworks Dendrite-free In-situ characterization

Word-Representation-Based Method for Extracting Organizational Events from Online Media

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Journal of Electronic Science and Technology 2017年第4期15卷 407-412页

作者： Jun-qiang Zhang Xiong-wen Deng Yu qian School of Management and Economics University of Electronic Science and Technology of China Chengdu 611731 China

Online social media exhibit massive organizational event relevant messages, and the well categorized event information can be useful in many real-world applications. In this paper, we propose a research framework to extract high quality event information from massive online media data. The main contributions lie in two aspects: First, we present an event-extraction and event-categorization system for online media data; second, we present a novel approach for both discovering important event categories and classifying extracted events based on word representation and clustering model. Experimental results with real dataset show that the proposed framework is effective to extract high quality event information.

关键词： Event detection social media text mining word representation

Development and validation of a novel non-invasive test for diagnosing nonalcoholic fatty liver disease in Chinese children

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World Journal of Pediatrics 2024年第4期20卷 413-421页

作者： Zhe-wen Qin qian-Nan Ren Hong-Xi Zhang Ya-Ru Liu Ke Huang Wei Wu Guan-Ping Dong Yan ni Jun-Fen Fu Division of Endocrinology National Clinical Research Center for Child HealthNational Children’s Regional Medical CenterThe Children’s HospitalDepartment of EndocrinologyNational Clinical Research Center for Child HealthNational Children’s Regional Medical CenterThe Children’s HospitalZhejiang University School of MedicineHangzhou310052China

With the exploding prevalence of obesity,many children are at risk of developing nonalcoholic fatty liver *** anthropometric and laboratory parameters,our study aimed to develop a model to quantitatively evaluate liver fat content(LFC)in children with *** A well-characterized cohort of 181 children between 5 and 16 years of age were recruited to the study in the Endocrinology Department as the derivation *** external validation cohort comprised 77 *** assessment of liver fat content was performed using proton magnetic resonance *** and laboratory metrics were measured in all subjects.B-ultrasound examination was carried out in the external validation *** Kruskal-Wallis test,Spearman bivariate correlation analyses,univariable linear regressions and multivariable linear regression were used to build the optimal predictive *** The model was based on indicators including alanine aminotransferase,homeostasis model assessment of insulin resistance,triglycerides,waist circumference and Tanner *** adjusted R^(2)of the model was 0.589,which presented high sensitivity and specificity both in internal[sensitivity of 0.824,specificity of 0.900,area under curve(AUC)of 0.900 with a 95%confidence interval:0.783–1.000]and external validation(sensitivity of 0.918 and specificity of 0.821,AUC of 0.901 with a 95%confidence interval:0.818–0.984).Conclusions Our model based on five clinical indicators was simple,non-invasive,and inexpensive;it had high sensitivity and specificity in predicting LFC in ***,it may be useful for identifying children with obesity who are at risk for developing nonalcoholic fatty liver disease.

关键词： Biochemical markers Children Magnetic resonance spectroscopy Nonalcoholic fatty liver disease Pediatric obesity

Relaxant Effect of Bioactive Component Compatibility of San-ao Decoction on In vitro Guinea Pig Airway Smooth Muscle:A Dose-Response Relationship Study

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World Journal of Traditional Chinese Medicine 2022年第2期8卷 262-272页

作者： wen-Jie Song Yan-Ling Fu Sheng-Lou ni Jia-Jia Fan qian Du Hao Zheng Chinese Medical College School of Traditional Chinese MedicineTianjin University of Traditional Chinese MedicineJing Hai DistrictTianjinChina Chinese Medical College School of Traditional Chinese MedicineBeijing University of Chinese MedicineChaoyang DistrictBeijingChina Periodicals Publishing Center Beijing University of Chinese MedicineChaoyang DistrictBeijingChina wenzhou Traditional Chinese Medicine Hospital WenzhouChina

Background:Component compatibility is important to the modernization of traditional Chinese *** have shown that San-ao decoction(SAD)can treat respiratory diseases by relaxing airway smooth muscle(ASM)and reducing airway ***,whether its bioactive components and compatibility also present with similar relaxant effects remains *** study aims to explore the potential relaxant property,dose-response relationship,and underlying mechanisms of the bioactive component compatibility in ***:Network pharmacology was primarily used to identify the bioactive components of SAD and uncover its underlying *** tension force measuring technique was utilized to verify the relaxant and dose-response effects on in vitro guinea pig ***:We postulated pseudoephedrine hydrochloride(PH),amygdalin(AM),and diammonium glycyrrhizate(DG)to be the bioactive components of SAD,which could effectively relax ASM in a dose-dependent manner on both acetylcholine-induced and spontaneous *** PH and AM could lead to DG dose–response curve *** regression equation of these three bioactive components was Y=-2.048×X_(1)+0.411×X_(2)+14.052×X_(3)(X_(1),X_(2),X_(3)representing PH,AM,and DG,respectively).The underlying mechanisms of these components might be associated with the regulation of smooth muscle ***:PH,AM,and DG are the bioactive components of SAD,which can relax ASM in a dose–response manner and exert a synergistic ***,compatibility of these three bioactive components may serve as a new complementary and alternative treatment for respiratory diseases.

关键词： Airway smooth muscle bioactive component compatibility dose–response manner relaxant effect San-ao decoction

Eosinopenia is a predictive factor for the severity of acute ischemic stroke

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Neural Regeneration Research 2019年第10期14卷 1772-1779页

作者： Hui-Min Zhao wen-qian Qin Pei-Ji Wang Zhong-Min wen Department of Neurology the Second Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina Department of Orthopedics the Second Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina

Previous data have revealed an association between eosinopenia and mortality of acute ischemic ***,the relationship of eosinopenia with infarct volume,infection rate,and poor outcome of acute ischemic stroke is still *** retrospective study included 421 patients(273 males,65%;mean age,68.0± 13.0 years)with first acute ischemic stroke who were hospitalized in the Second Affiliated Hospital of Soochow University,China,from January 2017 to February *** data,neuroimaging results,and modified Rankin Scale scores were *** were divided into four groups according to their eosinophil percentage level(nia predicted a large infarct volume more accurately than neutrophilia;the area under curve was 0.906 and 0.876,respectively;a large infarct was considered as that with a diameter larger than 3 cm and involving more than two major arterial blood supply *** regression analysis revealed that eosinophil percentage was an independent risk factor for acute ischemic stroke(P=0.002).Moreover,eosinophil percentage was significantly associated with large infarct volume,high infection rate(pulmonary and urinary tract infections),and poor outcome(modified Rankin Scale score>3)after adjusting for potential confounding factors(P-trendnia has the potential to predict the severity of acute ischemic *** study was approved by the Ethics Committee of the Second Affiliated Hospital of Soochow University,China(approval number:K10)on November 10,2015.

关键词： nerve regeneration eosinopenia eosinophil ischemia stroke infarct volume infection clinical outcome neutrophilia risk factors predictive factor neural regeneration

Relief Materials Vehicles Planning in Natural Disasters

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IEEE/CAA Journal of Automatica Sinica 2018年第2期5卷 595-601页

作者： Qun Shi wen Yang Zhen-Ming Yang qian-Chuan Zhao Department of Automation Tsinghua University Beijing 100084 China IEEE

A variety of relief materials needs to be transported to the disaster hit areas immediately after natural disasters. This paper studies the problem of planning relief materials vehicles in order to maximize their total weight. We propose a new method named substitution equilibrium point which can be used to plan relief materials vehicles. One feature of our model is to consider the substitution among vehicles which is usually omitted in the literature. The simulation experiments show that the transportation fleets are increased effectively considering the substitution between vehicles. Substitution equilibrium point has the same results as integer programming but has much lower time complexity.

关键词： Index Terms-Equilibrium point substitution transportationfleet vehicles planning.

Hollow carbon nanofibers with dynamic adjustable pore sizes and closed ends as hosts for high-rate lithiumsulfur battery cathodes

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Nano Research 2018年第3期11卷 1238-1246页

作者： Xiang-qian Zhang Bin He wen-Cui Li An-Hui Lu State Key Laboratory of Fine Chemicals School of Chemical Engineering Faculty of Chemical Environmental and Biological Science and Technology Dalian University of Technology Linggong Road 2 Dalian 116024 China

Designing a better carbon framework is critical for harnessing the high theoretical capacity of Li-S batteries and avoiding their drawbacks, such as the insulating nature of sulfur, active material loss, and the polysulfide shuttle reaction. Here, we report an ingenious design of hollow carbon nanofibers with closed ends and protogenetic mesopores in the shell that can be retracted to micropores after sulfur infusion. Such dynamic adjustable pore sizes ensure a high sulfur loading, and more importantly, eliminate excessive contact of sulfur species with the electrolyte. Together, the high aspect ratio and thin carbon shells of the carbon nanofibers facilitate rapid transport of Li^＋ ions and electrons, and the closed-end structure of the carbon nanofibers further blocks polysulfide dissolution from both ends, which is remarkably different from that for carbon nanotubes with open ends. The obtained sulfur-carbon cathodes exhibit excellent performance marked by high sulfur utilization, superior rate capability （1,170, 1,050, and 860 mA.h.g-1 at 1.0, 2.0, and 4.0 C （1 C = 1.675 A·g^-1）, respectively）, and a stable reversible capacity of 847 mA·h·g^-1 after 300 cycles at a high rate of 2.0 C.

关键词： hollow carbon nanofibers pore-adjusting strateg sulfur cathodes rate capability energy materials

Quasinormal modes and absorption of a massless scalar field for the magnetic Gauss-Bonnet black hole

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Communications in Theoretical Physics 2022年第6期74卷 113-121页

作者： Chen Ma Yu Zhang qian Li Zhi-wen Lin Faculty of Science Kunming University of Science and TechnologyKunmingYunnan 650500China

We study the massless scalar quasinormal frequencies of an asymptotically flat static and spherically symmetric black hole with a nonzero magnetic charge in four-dimensional extended scalar-tensor-Gauss-Bonnet theory. The results show that the real part of the quasinormal frequency becomes larger and the imaginary part becomes smaller with increasing the magnetic charge or the angular harmonic index. The existence of magnetic charges will reduce the damping of scalar perturbation, but increase the frequency. We also study the absorption crosssection of the scalar field in this black hole. We find that its curve will become lower as the magnetic charge increases, i.e. the magnetic charge will weaken the absorption capacity of the black hole. Meanwhile, the high-frequency limit of the total absorption cross-section is just the area of black hole shadow.

关键词： quasinormal modes scattering absorption cross-section massless scalar field magnetic Gauss-Bonnet black hole

Synthesis and Crystal Structure of [MoOS_3Cu_3I(dmpzm)_2]·2(MeCN)_(0.5) (dmpzm=Bis(3,5-dimethylpyrazolyl)methane)

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Chinese Journal of Structural Chemistry 2006年第5期25卷 557-561页

作者： DING ni-ni ZHANG wen-Hua CHEN Jin-Xiang REN Zhi-Gang ZHANG Yong LANG Jian-Ping Key Laboratory of Organic Synthesis of Jiangsu Province School of Chemistry and Chemical Engineering Suzhou Universiry Suzhou 215006 China State Key Laboratory. of Structural Chemistry Fujian Institute of Research on the Structure of MatterThe Chinese Academy of Sciences Fuzhou Fujian 350002 China

Reaction of a preformed cluster [Et4N]4[Mo2O2S6Cu6I6] with bis（3,5-dimethylpyrazolyl）methane （dmpzm） in acetonitrile afforded the title compound [MoOS3Cu3I（dmpzm）2]·2（MeCN）0.5 1. The single-crystal X-ray diffraction study shows that 1 （C24H35Cu3IMoN9OS3, Mr = 975.25） crystallizes in triclinic, space group P1^- with a = 11.442（2）, b = 11.644（2）, c = 16.211（3） A, α = 99.26（3）, β= 102.22（3）, γ = 118.51（3）°, V = 1766.5（10） A^3, Z = 2, Dc = 1.834 g/cm^3, T = 193（2） K, F（000） = 960, μ = 32.12 cm^-1, λ = 0.71073A^3, R = 0.0355 and wR = 0.0915 for 5686 observed reflections with Ⅰ 〉 2σ（Ⅰ）. In the molecular structure of 1, the [MoOS3]^2- anion acts as a tridentate ligand to bind one CuI group and two [Cu（dmpzm）]^＋ units to form a nido-like [MoOS3Cu3] core with an approximate C2v symmetry. The Mo…Cu contacts are in the range of 2.6460（12）～2.6798（11）A.

关键词： molybdenum copper sulfur crystal structure cluster

Involvement of unusual noncovalent interactions in the self-assembly of cucurbit[6]uril with [CdCl_4]^(2-) anions

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Chinese Chemical Letters 2016年第1期27卷 173-177页

作者： Xiao-Wei Cui Shi-Yan Chen Chuan-Zeng Wang wen-Xuan Zhao Tao Sun Xin-Long ni Yun-qian Zhang Zhu Tao Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province Guizhou University Key Laboratory of Guizhou High Performance Computational Chemistry Guizhou University

The [CdCl_4]^（2-） anion as a structure inducer has proved to be useful in the construction of cucurbit[n]urilmetal coordination architectures and materials. In order to better understand the role and influence of the structure inducer in Q[n] systems, we report herein the self-assembly of Q[6] solely in the presence of[CdCl_4]^（2-）anions and in the presence of both a linear cationic organic guest and [CdCl_4]^（2-）anions. X-ray diffraction analysis revealed that 1D Q[6] porous channels were formed by the noncovalent interactions between Q[6] and [CdCl_4]^（2-）anions, but the ＇＇honeycomb effect＇＇ was not observed in the present ***, it seems that the ＇＇honeycomb effect＇＇ and the self-assembly of Q[6] with [CdCl_4]^（2-）anions can be significantly modified and switched in the presence of a linear cationic dibutylamine guest through some unusual noncovalent interactions.

关键词： Cucurbituril [CdCl_4]^(2-) anions Cationic guest Honeycomb effect Assembly