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Risk stratification in gastric cancer lung metastasis: Utilizing an overall survival nomogram and comparing it with previous staging

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World Journal of Gastrointestinal Surgery 2024年第2期16卷 357-381页

作者： zhi-Ren Chen Mei-Fang Yang zhi-yuan xie Pei-An Wang Liang Zhang Ze-Hua Huang Yao Luo Department of Science and Education Xuzhou Medical UniversityXuzhou Clinical CollegeXuzhou 221000Jiangsu ProvinceChina Department of Neurology Xuzhou Medical UniversityXuzhou 221000Jiangsu ProvinceChina Department of Neurology Clinical LaboratoryGastrointestinal SurgeryCentral Hospital of XuzhouCentral Hospital of XuzhouXuzhou 221000Jiangsu ProvinceChina Department of Public Health Xuzhou Central HospitalXuzhou 221000Jiangsu ProvinceChina Department of Gastroenterology Xuzhou Centre HospitalXuzhou 221000Jiangsu ProvinceChina Department of Public Health Xuzhou Medical UniversityXuzhou 221000Jiangsu ProvinceChina

BACKGROUND Gastric cancer(GC)is prevalent and aggressive,especially when patients have distant lung metastases,which often places patients into advanced *** identifying prognostic variables for lung metastasis in GC patients,it may be po-ssible to construct a good prediction model for both overall survival(OS)and the cumulative incidence prediction(CIP)plot of the *** To investigate the predictors of GC with lung metastasis(GCLM)to produce nomograms for OS and generate CIP by using cancer-specific survival(CSS)*** Data from January 2000 to December 2020 involving 1652 patients with GCLM were obtained from the Surveillance,epidemiology,and end results program *** major observational endpoint was OS;hence,patients were se-parated into training and validation *** analysis determined va-rious *** and multivariate Cox analyses validated the independent predictive *** distinction and calibration were performed with the time-dependent area under the curve(AUC)and calibration *** evaluate the accuracy and clinical usefulness of the nomograms,decision curve analysis(DCA)was *** clinical utility of the novel prognostic model was compared to that of the 7th edition of the American Joint Committee on Cancer(AJCC)staging system by utilizing Net Reclassification Improvement(NRI)and Integrated Discrimination Improvement(IDI).Finally,the OS prognostic model and Cox-AJCC risk stratification model modified for the AJCC system were *** For the purpose of creating the OS nomogram,a CIP plot based on CSS was *** multivariate regression analysis identified eleven significant prognostic factors(P0),time-de-pendent ROC curve(training/v

关键词： Gastric cancer Lung metastasis Nomograms Surveillance Epidemiology Surveillance epidemiology and end results program database Overall survival Prognosis

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DONOR-ACCEPTOR CONJUGATED COOLIGOMERS FOR SINGLE MOLECULE SOLAR CELLS

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Chinese Journal of Polymer Science 2013年第5期31卷 815-822页

作者： Jian-fei Qu Jian Liu Si-da Li zhi-yuan xie 耿延候 State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences University of Chinese Academy of Sciences

Five novel donor-acceptor （D-A） conjugated cooligomers （F4B-hP, F5B-hP, F5B2[1,2]-hP, F5B2[I,3]-hP and F7B2[1,2]-hP） were synthesized. The absorption spectra of the cooligomers cover a wide range from 300 nm to 630 nm. The cooligomers could form films featured by alternating D-A lamellar nanostructures with the periods relative to the molecular lengths after thermal annealing or solvent vapor annealing. Single molecule solar cells were fabricated, and FSB-hP exhibited the best device performance. When the film of FSB-hP was thermally annealed, a power conversion efficiency （PCE） of 1.56% was realized. With solvent vapor annealing, the PCE could be further improved to 1.72% with a short-circuit current （J_SC） of 5.76 mA/cm2, an open-circuit voltage （Voc） of 0.87 V and a fill factor （FF） of 0.34.

关键词： Single molecule solar cells Monodisperse conjugated oligomers Lamellar nanostructures Bulk heterojunctionsolar cells.

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Phase transitions of the five-state clock model on the square lattice

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Chinese Physics B 2018年第8期27卷 159-163页

作者： Yong Chen zhi-yuan xie Ji-Feng Yu Department of Applied Physics School of Physics and ElectronicsHunan UniversityChangsha 410082China Department of Physics Renmin University of ChinaBeijing 100872China

Using the tensor renormalization group method based on the higher-order singular value decomposition, we have studied the phase transitions of the five-state clock model on the square lattice. The temperature dependence of the specific heat indicates the system has two phase transitions, as verified clearly by the correlation function at three representative tem- peratures. By calculating the magnetic susceptibility, we obtained only the upper critical temperature as To2 = 0.9565（7）. Investigating the fixed-point tensor, we precisely locate the transition temperatures at Tcl = 0.9029（1） and Tc2 = 0.9520（1）, consistent well with the Monte Carlo and the density matrix renormalization group results.

关键词： five-state clock model phase transition tensor renormalization group HOTRG

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SYNTHESIS, CHARACTERIZATION AND SOLAR CELL APPLICATION OF A D-A COPOLYMER WITH CYCLOPENTADITHIOPHENE AND FLUORENE AS DONOR UNITS

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Chinese Journal of Polymer Science 2013年第8期31卷 1117-1126页

作者： Hai-yang Song 童辉 zhi-yuan xie 王利祥 Fo-song Wang State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences

In this paper, a new D-A copolymer, PFDBCPDT, which consists of benzo-2,1,3-thiadiazole as acceptor units and cyclopentadithiophene and fluorene as donor units, was synthesized. The thermal, electrochemical, photophysical and photovoltaic properties of PFDBCPDT were studied. PFDBCPDT showed a low optical band gap of 1.84 eV, and relatively low HOMO level of-5.69 eV. The best device performance was obtained by PFDBCPDT/PC61BM （1：3） with 0.5 vol% DIO. The device exhibited a power conversion efficiency of 3.06%, with a relatively high open circuit voltage of 0.87 eV.

关键词： Polymer solar cell Copolymerization Fluorene Cyclopentadithiophene Conjugated polymers.

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Generalized Lanczos method for systematic optimization of tensor network states

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Chinese Physics B 2018年第7期27卷 220-226页

作者： Rui-Zhen Huang Hai-Jun Liao zhi-yuan Liu Hai-Dong xie zhi-yuan xie Hui-Hai Zhao Jing Chen Tao Xiang Institute of Physics Chinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China Department of Physics Renmin University of ChinaBeijing 100872China Department of Applied Physics University of TokyoHongoBunkyo-kuTokyo 113-8656Japan institute for Solid State Physics University of TokyoKashiwanohaKashiwaChiba 277-8581Japan RIKEN Brain Science Institute Wako-shiSaitama 351-0198Japan Collaborative Innovation Center of Quantum Matter Beijing 100190China

We propose a generalized Lanczos method to generate the many-body basis states of quantum lattice models using tensor-network states （TNS）. The ground-state wave function is represented as a linear superposition composed from a set of TNS generated by Lanczos iteration. This method improves significantly the accuracy of the tensor-network algorithm and provides an effective way to enlarge the maximal bond dimension of TNS. The ground state such obtained contains significantly more entanglement than each individual TNS, reproducing correctly the logarithmic size dependence of the entanglement entropy in a critical system. The method can be generalized to non-Hamiltonian systems and to the calculation of low-lying excited states, dynamical correlation functions, and other physical properties of strongly correlated systems.

关键词： tensor network state generalized Lanczos method renormalization group

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Microstructure and mechanical properties of Ti/Al/Ti clad plates prepared via powder-in-tube method

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Journal of Iron and Steel Research International 2024年第3期31卷 670-687页

作者： Xian-lei Hu Qin-cheng xie Yi yuan Ying zhi State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819LiaoningChina Suzhou Dongbao Haixing Metal Material Technology Co. Ltd.Suzhou 215600JiangsuChina School of Material Science and Engineering Northeastern UniversityShenyang 110819LiaoningChina

The Ti/Al/Ti clad plates exhibit a broad spectrum of potential ***,the conventional techniques of hot-pressing composite and explosive composite are intricate and environmentally hazardous.A novel method was introduced for preparing clad plates,namely,the powder-in-tube *** method involves a combination of cold rolling,annealing at a temperature of 550℃,and double *** morphology of the intermetallic compound layer was analyzed through the utilization of interface stripping test,tensile test,and microscopic *** interface morphology,interface bonding properties,tensile fracture structures,and properties of plates under the first and second rolling were compared,along with the effects of intermetallic compounds on the interface *** results indicate that the powder-in-tube method,when annealed at 550℃,can produce a composite plate featuring a complete and uniform Ti/Al *** obtained plate exhibits a peeling strength of 21.5 N/mm,tensile strength of 424 MPa,and elongation of 11.5%.Furthermore,a systematic analysis was conducted to determine the causes of performance degra-dation observed during annealing at temperatures of 600 and 650℃.

关键词： Powder-in-tube method-Ti/Al/Ti clad plate Annealing Cold rolling-Mechanical property

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A 3D basin modeling study of the factors controlling gas hydrate accumulation in the Shenhu Area of the South China Sea

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China Geology 2022年第2期5卷 218-233页

作者： zhi-yuan xie Jian-gong Wei Jin-yun Zheng Zhen Sun Kun Zhang Guangzhou Marine Geological Survey China Geological SurveyMinistry of Natural ResourcesGuangzhou 510760China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 511458China Sanya Institute of South China Sea Geology Guangzhou Marine Geological SurveySanya 572025China China National Offshore Oil Corporation Ltd.-Shenzhen Shenzhen 518054China Key Laboratory of Ocean and Marginal Sea Geology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China State Key Laboratory of Marine Geology School of Ocean and Earth ScienceTongji UniversityShanghai 200092China

Great advancement has been made on natural gas hydrates exploration and test production in the northern South China ***,there remains a lot of key questions yet to be resolved,particularly about the mechanisms and the controls of gas hydrates *** simulaution would play signficant role in addressing these *** study focused on the gas hydrate exploration in the Shenhu Area,Northern South China *** on the newly obtained borehole and multichannel reflection seismic data,the authors conducted an integrated 3D basin modeling study on gas *** results indicate that the Shenhu Area has favorable conditions for gas hydrate accumulation,such as temperature,pressure,hydrocarbon source,and tectonic *** hydrates are most concentrated in the Late Miocene strata,particularly in the structual highs between the Baiyun Sag and the Liwan Sag,and area to the south of *** also proved the existence of overpressure in the main sag of source rocks,which was subject to compaction disequilibrium and hydrocarbon *** also shown that the regional fault activity is not conducive to gas hydrate accumulation due to excess gas *** authors conjecture that fault activity may slightly weaken overpressure for the positive effect of hydrocarbon expulsion and areas lacking regional fault activity have better potential.

关键词： 3D basin modeling Gas hydrates Fault reactivation Overpressure Gas seepage Heat flow NGHs exploration trial engineering Oil and gas exploration engineering Shenhu Area South China Sea

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Thienopyrazine or Dithiadiazatrindene Containing Low Band Gap Conjugated Polymers for Polymer Solar Cells

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Chinese Journal of Polymer Science 2014年第7期32卷 844-853页

作者： Mukhamed L.Keshtov Dmitry V.Marochkin Ying-ying Fu zhi-yuan xie 耿延候 Vitaly S.Kochurov Alexei R.Khokhlov A.N.Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences Lomonosov Moscow State University Faculty of Physics 119991

Four new low-band-gap alternating copolymers （P-1, P-2, P-3 and P-4） based on electron-rich benzodithiophene and newly developed electron-deficient units, thienopyrazine or dithiadiazatrindene derivatives, were synthesized by Stille polycondensation. All polymers exhibit good solubility in common organic solvents and a broad absorption band in the visible to near-infrared regions. The film optical band gaps of the polymers are in the range of 1.28-2.07 eV and the highest occupied molecular orbital （HOMO） energy levels are in the range of-4.99 eV to -5.28 eV. Bulk heterojunction polymer solar cells （PSCs） of the polymers were fabricated with phenyl-C61-butyric acid methyl ester （PC61BM） as acceptor material, and a power conversion efficiency of 0.80% was realized with P-1 as donor material.

关键词： Low band gap Conjugated polymers Electron-deficient aromatics Polymer solar cells.

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Microstructures and mechanical properties of a commercial Mg-Al-Zn-Mn alloy with various hot-extrusion processes

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Rare Metals 2024年第3期43卷 1329-1336页

作者： He Ma Fan-zhi Meng Qiang Yang Ze-Feng xie yuan-Ding Huang Xin Qiu State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China School of Materials Science and Engineering Changchun University of Science and TechnologyChangchun130022China MagIC-Magnesium Innovation Center Helmholtz-Zentrum Geesthacht21502GeesthachtGermany Engineering Research Center of Optoelectronic Functional Materials Ministry of EducationChangchun University of Science and TechnologyChangchun130022China

Mg-Al-Zn-Mn(AZ)system alloys have become widely used due to their good castability,excellent formability and outstanding corrosion resistance[1-6].However,their strength is still much lower than that of traditional Mg... 详细信息

关键词： alloys alloy corrosion

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C-F insertion reaction sheds new light on the construction of fluorinated compounds

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Chinese Chemical Letters 2024年第8期35卷 163-169页

作者： Dong-Sheng Deng Su-Qin Tang Yong-Tu yuan Ding-Xiong xie zhi-yuan Zhu Yue-Mei Huang Yun-Lin Liu Henan Key Laboratory of Function-Oriented Porous Materials and College of Chemistry and Chemical EngineeringLuoyang Normal UniversityLuoyang 471934China School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhou 510006China Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China

The atom-economical C-F insertion chemistry is emerged as a promising technology for the synthesis of various fluorinated scaffolds,which have wide applications both in the academic and the industrial *** past three years have witnessed rapid developments in this *** highlight provides an overview on the evolution according to the fluorinating agents used.

关键词： C-F insertion Benzyl fluoride Acyl fluoride gem-Difluorocyclopropane Fluorinated scaffold

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