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Surface diffraction beamline at the SSRF

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Nuclear Science and Techniques 2024年第7期35卷 47-57页

作者： Yue-Liang gu Xu Zheng xing-Min Zhang Bin Zhao guang-Zhi Yin Da-Ming Zhu Yuan-He Sun xing-Yu Gao Xiao-Long Li Shanghai Advanced Research Institute Chinese Academy of Sciences239 Zhangheng RoadPudong DistrictShanghai201204China

BL02U2 of the Shanghai Synchrotron Radiation Facility is a surface diffraction beamline with a photon flux of 5.5×10^(12) photons/s at 10 keV and a beam size of 160µm×80µm at the sample *** is dedicated to studying surfaces(solid-vacuum,solid-gas)and interfaces(solid-solid,solid-liquid,and liquid-liquid)in nanoscience,condensed matter,and soft matter systems using various surface scattering techniques over an energy range of 4.8-28 keV with transmission and reflection ***,BL02U2 has a high energy resolution,high angular resolution,and low beam divergence,which can provide excellent properties for X-ray diffraction experiments,such as grazing incident X-ray diffraction,X-ray reflectivity,crystal truncation rods,and liquid X-ray *** of in situ environments can also be provided for the samples *** paper describes the setup of the new beamline and its applications in various fields.

关键词： Surface and interface Beamline Surface diffraction Microstructure

Advances in salinity tolerance of soybean: Genetic diversity, heredity, and gene identification contribute to improving salinity tolerance

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Journal of Integrative Agriculture 2018年第10期17卷 2215-2221页

作者： CHEN Hua-tao LIU Xiao-qing ZHANG Hong-mei YUAN xing-xing gu He-ping CUI Xiao-yan CHEN Xin Institute of Industrial Crops Jiangsu Academy of Agricultural Sciences

Salt stress is one of the major abiotic stresses affecting soybean growth. Genetic improvement for salt tolerance is an effective way to protect soybean yield under salt stress conditions. Successful improvement of salt tolerance in soybean relies on identifying genetic variation that confers tolerance in soybean germplasm and subsequently incorporating these genetic resources into cultivars. In this review, we summarize the progress in genetic diversity and genetics of salt tolerance in soybean, which includes identifying genetic diversity for salt tolerant germplasm; mapping QTLs conferring salt tolerance; map-based cloning; and conducting genome-wide association study（GWAS） analysis in soybean. Future research avenues are also discussed, including high throughput phenotyping technology, the CRISPR/Cas9 Genome-Editing System, and genomic selection technology for molecular breeding of salt tolerance.

关键词： soybean genetic variation heredity gene identification salinity improvement

Pomeron-Quark Coupling from Charge Conjugation Invariance

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Communications in Theoretical Physics 2006年第2X期46卷 287-290页

作者： ZHOU Li-Juan WU Qing MA Wei-xing gu Yun-Ting Collaboration Group of Hadron Physics and Non-perturbative QCD Study Guangxi University of Technology Liuzhou 545006 China Department of Physics Institute for Sciences Qingdao University Qingdao 266071 China Institute of High Energy Physics the Chinese Academy of Sciences P.O. Box 918 Beijing 100049 China College of Physical Science and Engineering Technology Guangxi University Nanning 530004 China

Based on the charge conjugation invariance and the vazuum property of the Pomeron, we point out that the commonly used vector vertex of the Pomeron coupling to quarkis incorrect since it contradicts with the Pomeron property. We also claim that the soft Pomeron could be a tensor glueball ξ（2230） with quantum numbers I^GJ^PC = 0^＋2^＋＋ and total decay width Гtot ≌ 100 MeV, which lies on the soft Pomeron trajectory αp = 1.08＋ 0.20t. Therefore, the coupling vertex of the soft Pomeron to quark should be tensorial which is invariant under the charge conjugation and can explaIn why the inadequate vector coupling, γ^μ, of the soft Pomeron to quark is successful in dealing with Pomeron physics.

关键词： Pomeron quark tensor glueball Pomeron-quark coupling vertex

Metastasis of esophageal squamous cell carcinoma to the thyroid gland with widespread nodal involvement: A case report

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World Journal of Clinical Cases 2020年第19期8卷 4588-4594页

作者： xing Zhang Xin gu Jia-Gen Li Xian-Jie Hu Department of Thyroid and Breast Surgery The Affiliated People's Hospital of Ningbo UniversityNingbo 315040Zhejiang ProvinceChina Department of Pathology The Affiliated People's Hospital of Ningbo UniversityNingbo 315040Zhejiang ProvinceChina

BACKGROUND Esophageal cancer is one of the most common causes of cancer-related *** patients with esophageal cancer have distant metastases at the time of diagnosis,but metastasis to the thyroid gland(MTG)and multifocal thyroid lesions alone are extremely *** SUMMARY In this case report,we present a case of a 69-year-old male with esophageal *** patient visited our hospital for a routine body check-up,which revealed multifocal nodules in his thyroid lobes and enlarged cervical lymph nodes.A fine needle aspiration biopsy showed malignancies in both thyroid lesions and lymph *** patient was initially diagnosed with primary bilateral thyroid cancer that spread to his lymph nodes,and a total thyroidectomy was *** histology showed MTG and therefore,a diagnostic work-up was implemented to determine the primary tumor.A fluorine-18-deoxyglucose positron emission tomography scan showed that the lower part of the esophagus and the lymph nodes in the neck,chest,and abdomen were *** esophagogastroscopy and corresponding pathology revealed distal esophageal squamous cell *** esophageal MTG diagnosis was confirmed with pathological *** This case report highlights the difficulty in diagnosing esophageal *** may have no malignancy history and be *** diagnostic procedures are necessary after MTG is confirmed by cytology or histology,and the final diagnosis should be made according to the identification of the primary malignancy combined with pathological immunohistochemistry findings.

关键词： Esophageal squamous cell carcinoma Metastasis Thyroid gland Thyroidectomy Lymph nodes Case report

Upsilon Photo-Production off Proton in QCD Inspired Model

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Communications in Theoretical Physics 2009年第7期52卷 108-114页

作者： PAN Ji-Huan MA Wei-xing gu Yun-Ting LUO Liang-Zi Department of Physics Guangxi University Nanning 530004 China Department of Physics and Electronic Engineering Hechi College Yizhou 546300 China Institute of High Energy Physics the Chinese Academy of Sciences Box 918 Beijing 100049 China

Based on the generalized vector meson dominance model in QCD, we study photoproduction of vector meson T off the proton by use of the QCD inspired model in which the contributions from quark-quark, gluon-gluon, and quark-gluon interference term to observable are taken into consideration. Calculations are performed for total cross section σtot, differential cross section dσ/dt, ratio of the real part to imaginary part of forward scattering amplitude ρ, and nuclear slop parameter function β. The mediators of interactions between projectiles （the quark and antiquark pair fluctuated from the real the photon） and the proton target （three-quark system） are the tensor Glueball and Odderon instead of using the usual Pomeron exchange. The theoretical predictions for σtot （s） are consistent with the experimental data within error bars of the data. The data for dσ/dt, ρ, and β are urgently needed.

关键词： Upsilon production QCD inspired model vector meson dominance model

Combination of fruquintinib with venetoclax for the treatment of colorectal cancer

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Oncology research 2025年第1期33卷 225-234页

作者： Wei Zhang Weicheng Wang Rui Wang Xiao Han Lijun Zhu Wenjie guo Yanhong gu Department of Oncology The First Affiliated Hospital of Nanjing Medical University Nanjing 210029 China. Department of Oncology The Affiliated Taizhou People's Hospital of Nanjing Medical University Taizhou 225300 China. State Key Laboratory of Pharmaceutical Biotechnology School of Life Sciences Nanjing University Nanjing 210023 China.

Background:As a novel blocker of vascular endothelial growth factor receptor (VEGFR), fruquintinib has been approved for treating colorectal cancer (CRC). However, its dosage and therapeutic efficacy are limited by its widespread adverse reactions. Venetoclax, recognized as the initial inhibitor of B-cell lymphoma protein 2 (BCL2), has shown potential in boosting the effectiveness of immunotherapy against CRC. This study investigated the efficacy and mechanisms of fruquintinib combined with venetoclax in treating CRC.Methods and Materials:We developed a colon cancer mouse model with the CT26 colon cell line to demonstrate fruquintinib and venetoclax's efficacy against tumors. Then we employed various techniques to evaluate different aspects of the experimental outcomes. Immunohistochemistry was used to detect cell proliferation and angiogenesis in tumor tissues. Western blot analysis was utilized to examine the occurrence of cell apoptosis, and flow cytometry to quantitate immune cells within the tumor tissues. Moreover, immunofluorescence was employed to measure cytokine levels.Results:The strongest inhibition on tumor growth was achieved by the combination of fruquintinib with venetoclax, as opposed to individual drug use. Venetoclax was found to amplify the impact of fruquintinib, leading to decreased cancer cell proliferation, increased cancer cell apoptosis, lowered angiogenesis, better vascular structure normalization, and improved immune cell infiltration.Conclusion:Our findings indicate that the addition of venetoclax enhances the impact of fruquintinib on vascular normalization and modulation of the tumor immune microenvironment. Our study presents the justification for utilizing the fruquintinib and venetoclax combination in treating CRC. Venetoclax holds promise in being assimilated into anticancer medications for CRC.

关键词： Anti-angiogenesis B-cell lymphoma protein 2 (BCL2) Colorectal cancer (CRC) Fruquintinib Immunotherapy Vascular endothelial growth factor receptor (VEGFR) Venetoclax

Self-tuning virtual synchronous generator control for improving frequency stability in autonomous photovoltaic-diesel microgrids

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Journal of Modern Power Systems and Clean Energy 2018年第3期6卷 482-494页

作者： Rongliang SHI xing ZHANG Chao HU Haizhen XU Jun gu Wei CAO School of Electrical Engineering and Automation Hefei University of Technology Sungrow Power Supply Co.Ltd.

This paper investigates the use of a virtual synchronous generator(VSG) to improve frequency stability in an autonomous photovoltaic-diesel microgrid with energy storage. VSG control is designed to emulate inertial response and damping power via power injection from/to the energy storage system. The effect of a VSG with constant parameters(CP-VSG) on the system frequency is analyzed. Based on the case study, self-tuning algorithms are used to search for optimal parameters during the operation of the VSG in order to minimize the amplitude and rate of change of the frequency variations. The performances of the proposed self-tuning(ST)-VSG, the frequency droop method, and the CP-VSG are evaluated by comparing their effects on attenuating frequency variationsunder load variations. For both simulated and experimental cases, the ST-VSG was found to be more efficient than the other two methods in improving frequency stability.

关键词： Virtual synchronous generator(VSG) Frequency stability Autonomous microgrid Self-tuning algorithm Energy storage system

Gasser-Leutwyler Coefficients of Chiral Lagrangian for Pseudoscalar Goldstone Bosons in Dyson-Schwinger Equations

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Communications in Theoretical Physics 2008年第11期50卷 1205-1210页

作者： gu Yun-Ting QIN Song-Mei ZHOU Li-Juan MA Wei-xing Department of Physics Guangxi University Nanning 530004 China Collaboration Group of Hadron Physics and Non-perturbative QCD Study Guangxi University of Technology Liuzhou 545006 China Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China

Based on the Dyson-Schwinger equations of quark propagator in rainbow truncation with an effective gluonpropagator,the ten unknown Gasser-Leutwyler coefficients of the chiral Lagrangian for pseudoscalar Goldstone bosonsare *** predicted values of L_i with i=1,2,...,10 are in a reasonable agreement with empirical values usedwidely in literature,and the values predicted by many other theoretical models with QCD characteristics.

关键词： chiral perturbation theory Gasser-Leutwyler coefficient Dyson-Schwinger equation

Sulfur-doped CMK-5 with expanded lattice for high-performance lithium ion batteries

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Chinese Chemical Letters 2023年第7期34卷 279-283页

作者： Zhenjin Liang Yuhao Peng xing Zhang Kewei Cao Wei Xiao Dong gu The Institute for Advanced Studies Wuhan UniversityWuhan 430072China College of Chemistry and Molecular Sciences Hubei Key Laboratory of Electrochemical Power SourcesWuhan UniversityWuhan 430072China

Heteroatom-doped porous carbon materials are very attractive for lithium ion batteries(LIBs) owing to their high specific surface areas, open pore structures, and abundant active sites. However, heteroatomdoped porous carbon with very high surface area and large pore volume are highly desirable but still remain a big challenge. Herein, we reported a sulfur-doped mesoporous carbon(CMK-5-S) with nanotubes array structure, ultrahigh specific surface area(1390 m^(2)/g), large pore volume(1.8 cm^(3)/g), bimodal pore size distribution(2.9 and 4.6 nm), and high sulfur content(2.5 at%). The CMK-5-S used as an anode material for LIBs displays high specific capacity, excellent rate capability and highly cycling stability. The initial reversible specific capacity at 0.1 A/g is as high as 1580 mAh/g and simultaneously up to 701 mAh/g at 1A/g even after 500 cycles. Further analysis reveals that the excellent electrochemical storage performances is attributed to its unique structures as well as the expanded lattice by sulfur-doping.

关键词： Mesoporous material CMK-5 Hollow structure Sulfur-doping Lithium ion batteries