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Novel Wronskian Solutions to Boussinesq Equation

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Communications in Theoretical Physics 2007年第4X期48卷 577-583页

作者： YAO yu-Qin LIU yu-Qing JI jie chen Deng-yuan Department of Mathematics Shanghai University Shanghai 200444 China

The new method for constructing the Wronskian entries is applied to the Boussinesq equation. The novel Wronskian solutions to it are obtained, including solitons, rational solutions, Matveev solutions, and complexitons.

关键词： Boussinesq equation Wronskiail technique rational solutions Matveev solutions complexitons

Solvothermal Synthesis and Crystal Structure of Zn(en)_3B_5O_7(OH)_3

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Chemical Research in Chinese Universities 2006年第3期22卷 271-273页

作者： HE Yi chen Wei YANG Jin XI Chun-yu chen jie-sheng State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun 130012 P. R. China

A new polyborate containing ehiral metal-complex Zn（en）3 B5O7（OH）3, where en = ethylenediamine, was synthesizedunder solvothermal conditions and structurally characterized by means of X-ray diffraction analysis. Crystal data： Zn（en）3 B5O7（OH）3, monoclinic, space group P21/c, a =0.8532（72） nm, b =2.3340（5） nm, c = 0.9526（92） nm, β =107. 04（3）°, Z=4, V=1.8140（6） nm^3, Dc =1.694 g/cm^3, p=1.416 mm^-1, F（000） = 960, GOF = 1. 020, R =0. 0276, Rw =0. 0828. There is a chiral Zn（en）3^2＋ complex cation and an isolated B5O7（OH）3^2- group in a Zn（en）3 B5O7（OH）3 molecule. The enantiomer of the chiral complex cation is separated orderly as ,4 and A configurations in the compound and the borate group consists of two B303 cycles linked through a bridging boron atom.

关键词： Solvothermal synthesis Crystal structure Chiral metal-complex Borate compound

The Second mKdV Equation and Its Hereditary Symmetry and Hamiltonian Structure

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Communications in Theoretical Physics 2007年第1期47卷 22-24页

作者： YAO yu-Qin LIU yu-Qing JI jie chen Deng-yuan Department of Mathematics Shanghai University Shanghai 200444 China

The isospectral problem of the second mKdV equation is found out firstly. It follows that the strong hereditary symmetry and the Hamiltonian structure of the second mKdV equation are presented.

关键词： the second mKdV equation hereditary symmetry Hamiltonian structure

GenOrigin: A comprehensive protein-coding gene origination database on the evolutionary timescale of life

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Journal of Genetics and Genomics 2021年第12期48卷 1122-1129页

作者： Yi-Bo Tong Meng-Wei Shi Sheng Hu Qian yu-jie chen Zhi-Hui Luo Yi-Xuan Tu yu-Li Xiong Ying-jie Geng Chunyan chen Zhen-Xia chen Hubei Hongshan Laboratory College of Biomedicine and HealthHuazhong Agricultural UniversityWuhan 430070China Hubei Key Laboratory of Agricultural Bioinformatics College of Life Science and TechnologyHuazhong Agricultural UniversityWuhan 430070China Center for Ecological and Environmental Sciences Northwestern Polytechnical UniversityXi’an 710072China Interdisciplinary Sciences Institute Huazhong Agricultural UniversityWuhan 430070China Shenzhen Institute of Nutrition and Health Huazhong Agricultural UniversityShenzhen 518000China Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518000China

The origination of new genes contributes to the biological diversity of life. New genes may quickly build their network, exert important functions, and generate novel phenotypes. Dating gene age and inferring the origination mechanisms of new genes, like primate-specific genes, is the basis for the functional study of the genes. However, no comprehensive resource of gene age estimates across species is available. Here,we systematically date the age of 9,102,113 protein-coding genes from 565 species in the Ensembl and Ensembl Genomes databases, including 82 bacteria, 57 protists, 134 fungi, 58 plants, 56 metazoa, and 178 vertebrates, using a protein-family-based pipeline with Wagner parsimony algorithm. We also collect gene age estimate data from other studies and uniformly distribute the gene age estimates to time ranges in a million years for comparison across studies. All the data are cataloged into Gen Origin(http://***/), a user-friendly new database of gene age estimates, where users can browse gene age estimates by species, age, and gene ontology. In Gen Origin, the information such as gene age estimates,annotation, gene ontology, ortholog, and paralog, as well as detailed gene presence/absence views for gene age inference based on the species tree with evolutionary timescale, is provided to researchers for exploring gene functions.

关键词： Gene age Gene family Comparative analysis

An indirect approach for quantum-mechanical eigenproblems: duality transforms

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Communications in Theoretical Physics 2022年第5期74卷 24-44页

作者： yu-jie chen Shi-Lin Li Wen-Du Li Wu-Sheng Dai Department of Physics Tianjin UniversityTianjin300350 China College of Physics and Materials Science Tianjin Normal UniversityTianjin 300387China

We suggest an indirect approach for solving eigenproblems in quantum *** the usual method,this method is not a technique for solving differential *** exists a duality among potentials in quantum *** first example is the Newton–Hooke duality revealed by Newton in *** that are dual to each other form a duality family consisting of infinite numbers of family *** one potential in a duality family is solved,the solutions of all other potentials in the family can be obtained by duality *** of directly solving the eigenequation of a given potential,we turn to solve one of its dual potentials which is easier to *** solution of the given potential can then be obtained from the solution of this dual potential by a duality *** approach is as follows:first to construct the duality family of the given potential,then to find a dual potential which is easier to solve in the family and solve it,and finally to obtain the solution of the given potential by the duality *** this paper,as examples,we solve exact solutions for general polynomial potentials.

关键词： duality family general polynomial potential exact solution

Cyclophilin D-induced mitochondrial impairment confers axonal injury after intracerebral hemorrhage in mice

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Neural Regeneration Research 2023年第4期18卷 849-855页

作者： Yang Yang Kai-yuan Zhang Xue-Zhu chen Chuan-Yan Yang Ju Wang Xue-Jiao Lei yu-Lian Quan Wei-Xiang chen Heng-Li Zhao Li-Kun Yang yu-Hai Wang yu-jie chen Hua Feng Department of Neurosurgery The 904th Hospital of PLAAnhui Medical UniversityWuxiJiangsu ProvinceChina Department of Neurosurgery and State Key Laboratory of Trauma Burn and Combined InjurySouthwest HospitalThird Military Medical University(Army Medical University)ChongqingChina Chongqing Key Laboratory of Precision Neuromedicine and Neuroregenaration Third Military Medical University(Army Medical University)ChongqingChina Wuxi Translational Medicine Center WuxiJiangsu ProvinceChina Department of Neurosurgery General Hospital of Xinjiang Military Command of PLAUrumqiXinjiang Uygur Autonomous RegionChina Department of Neurology The Second Medical Center&National Clinical Research Center for Geriatric DiseasesChinese PLA General HospitalBeijingChina

The mitochondrial permeability transition pore is a nonspecific transmembrane *** of mitochondrial permeability transition pore opening has been shown to alleviate mitochondrial swelling,calcium overload,and axonal *** D is an important component of the mitochondrial permeability transition *** cyclophilin D participates in mitochondrial impairment and axonal injury after intracerebral hemorrhage is not *** this study,we established mouse models of intracerebral hemorrhage in vivo by injection of autologous blood and oxyhemoglobin into the striatum in Thy1-YFP mice,in which pyramidal neurons and axons express yellow fluorescent *** also simulated intracerebral hemorrhage in vitro in PC12 cells using *** found that axonal degeneration in the early stage of intracerebral hemorrhage depended on mitochondrial swelling induced by cyclophilin D activation and mitochondrial permeability transition pore *** further investigated the mechanism underlying the role of cyclophilin D in mouse models and PC12 cell models of intracerebral *** found that both cyclosporin A inhibition and short hairpin RNA interference of cyclophilin D reduced mitochondrial permeability transition pore opening and mitochondrial *** addition,inhibition of cyclophilin D and mitochondrial permeability transition pore opening protected corticospinal tract integrity and alleviated motor dysfunction caused by intracerebral *** findings suggest that cyclophilin D is used as a key mediator of axonal degeneration after intracerebral hemorrhage;inhibition of cyclophilin D expression can protect mitochondrial structure and function and further alleviate corticospinal tract injury and motor dysfunction after intracerebral *** findings provide a therapeutic target for preventing axonal degeneration of white matter injury and subsequent functional impairment in central nervous diseases.

关键词： axonal injury corticospinal tract cyclophilin D cyclosporin A intracerebral hemorrhage mitochondrial impairment mitochondrial permeability transition pore motor dysfunction retraction bulb white matter

Lead-free Nb-based dielectric film capacitors for energy storage applications

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Tungsten 2022年第4期4卷 296-315页

作者： jie-yu chen yun-Peng Zhou Fei Guo Zhe-Hong Tang Shi-Feng Zhao College of Science Inner Mongolia University of TechnologyHohhot010051China Inner Mongolia Key Lab of Nanoscience and Nanotechnology School of Physical Science and TechnologyInner Mongolia UniversityHohhot010021China

Dielectric capacitors are the ideal energy storage devices because they have excellent power density,high working voltages,and a long *** its lower size and better energy storage density,film capacitors make them simpler to incorporate into circuits than traditional dielectric capacitor ***-free Nb-based perovskite ferroelectric/antiferroelectric films have strong orbital hybridization with O 2p orbitals due to unfilled d orbitals of Nb elements,forming a series of energy storage film materials with potential application ***,we provide an overview of the state-of-the-art lead-free Nb-based films for energy storage applications,which include K_(0.5)Na_(0.5)NbO_(3)-based,K_(0.5)Na_(0.5)Bi_(4)NbTi_(3)O_(15)-based,AgNbO_(3)-based and NaNbO_(3)-based *** overview of the benefits and drawbacks of each kind of Nb-based perovskite ferroelectric/antiferroelectric films is provided,along with a description of the design tactics used to achieve high energy storage performances.

关键词： Energy storage Nb-based films Relaxor Ferroelectric films Lead free materials

Slow Down Dewetting in Polymer Films by Isocyanate-treated Graphite Oxide

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Chinese Journal of Polymer Science 2018年第9期36卷 1070-1076页

作者： Yong Zhou Pei Bai Miao Huo yu-jie chen Hua Li Hong-Mei Kang He-Zhou Liu yun-Long Guo The State Key Lab of Metal Matrix Composites Shanghai Jiao Tong University School of Materials Science and Engineering Shanghai Jiao Tong University University of Michigan-Shanghai Jiao Tong University Joint Institute Shanghai Jiao Tong University

Isocyanate-treated graphite oxides （iGOs） were well-dispersed into the polystyrene （PS） thin films and formed a novel network structure. With control in fabrication, an iGOs-web layer was horizontally embedded near the surface of the films and thus formed a composite slightly doped by iGOs. This work demonstrated that the iGOs network can remarkably depress the dewetting process in the polymer matrix of the composite, while dewetting often leads to rupture of polymer films and is considered as a major practical limit in using polymeric materials above their glass transition temperatures （Tg）. Via annealing the 50-120 nm thick composite and associated neat PS films at temperatures ranging from 35℃ to 70 ℃ above Tg, surface morphology evolution of the films was monitored by atomic force microscopy （AFM）. The iGOs-doped PS exhibited excellent thermal stability, i.e., the number of dewetting holes was greatly reduced and the long-term hole growth was fairly restricted. In contrast, the neat PS film showed serious surface fluctuation and a final rupture induced by ordinary dewetting. The method developed in this work may pave a road to reinforce thin polymer films and enhance their thermal stability, in order to meet requirements by technological advances.

关键词： Dewetting Thin polymer films Thermal instability iGOs network

Laparoscopic resection of an obturator schwannoma： a case report

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Chinese Medical Journal 2010年第13期123卷 1804-1806页

作者： YI Ke WANG yu-mei chen jie Department of Gynecology West China Second University Hospital Sichuan University Chengdu Sichuan 610041 China

Schwannomas are usually benign tumors that arise from a nerve supporting the Schwann cells, those are mostly associated with the cranial or main peripheral nerves. The occurrence of retroperitoneal schwannoma is quite rare, and in such a case, surgical excision is the first option for treatment. In 1996, Melvin confirmed the feasibility of the complete resection of a retroperitoneal schwannoma using laparoscopy for the first time. Until recently, only few cases of laparoscopic resection of retroperitoneal schwannoma have been reported.

关键词： laparoscopy obturator schwannomas