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Food Science and Human Wellness 2023年第6期12卷 2369-2380页

作者： xiao Hu Yujiao Qian Zhipeng Gao Gaoyang Li Fuhua Fu Jiajing guo Yang shan Hunan Agriculture Product Processing Institute International Joint Lab on Fruits&Vegetables ProcessingQuality and SafetyHunan Key Lab of Fruits&Vegetables StorageProcessingQuality and SafetyHunan Academy of Agricultural SciencesChangsha 410125China College of Animal Science and Technology Hunan Agricultural UniversityChangsha 410128China

The microbial potential of Penicillium has received critical *** present research aimed to elucidate the efficacy of crude enzyme secreted from Penicillium oxalicum WX-209 in degrading citrus segments and evaluate the safety of the *** showed that citrus segment membranes gradually dissolved after treatment with the crude enzyme solution,indicating good degradation *** significant differences in body weight,food ingestion rate,hematology,blood biochemistry,and weight changes of different organs were found between the enzyme intake and control *** experiments showed that the crude enzyme had high biological ***,the whole genome of *** WX-209 was sequenced by PacBio and Illumina ***-five scaffolds were assembled to generate 36 Mbp size of genome sequence comprising 11369 predicted genes modeled with a GC content of 48.33%.A total of 592 genes were annotated to encode enzymes related to carbohydrates,and some degradation enzyme genes were identified in strain *** WX-209.

关键词： Penicillium oxalicum WX-209 Crude enzyme Degradation Safety evaluation Genome sequencing

PRRT2 Mutation and Serum Cytokines in Paroxysmal Kinesigenic Dyskinesia

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Current Medical Science 2022年第2期42卷 280-285页

作者： Ke XU shan-shan HUANG Dao-yuan YUE guo LI Sui-qiang ZHU xiao-yan LIU Department of Neurology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China Department of Laboratory Medicine Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China

Objective Paroxysmal kinesigenic dyskinesia(PKD)is a rare movement disorder PRRT2 gene mutations have been reported to cause ***,the pathophysiological mechanism of PKD remains unclear,and it is unknown whether an inflammatory response is involved in the occurrence of this *** aimed to investigate the symptomatology,genotype,and serum cytokines of patients with *** We recruited 21 patients with PKD,including 7 with familial PKD and 14 with sporadic *** clinical features were investigated,and blood samples were collected,and PRRT2 mutations and cytokine levels were *** The mean age at PKD onset was 12.3±2.2 years *** was the most common manifestation of dyskinesia,and the limbs were the most commonly affected *** attacks were induced by identifiable kinesigenic triggers,and the attack durations were brief(A)were previously *** tumor necrosis factor(TNF)-αlevel in the PKD group was significantly higher than that in the age-and sex-matched control group(P=0.025).There were no significant differences in the interleukin(IL)-1β,IL-2R,IL-6,IL-8,or IL-10 levels between the two *** In this study,we summarized the clinical and genetic characteristics of *** found that the serum TNF-αlevels were elevated in patients clinically diagnosed with PKD,suggesting that an inflammatory response is involved in the pathogenesis of PKD.

关键词： paroxysmal kinesigenic dyskinesia proline-rich transmembrane protein 2 cytokines

Metal-containing covalent organic framework:a new type of photo/electrocatalyst

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Rare Metals 2022年第4期41卷 1160-1175页

作者： xiao-Tong Wang xiao-Feng Lin Ding-shan Yu Key Laboratory for Polymeric Composite and Functional Materials Ministry of EducationSun Yat-Sen UniversityGuangzhou 510275China Key Laboratory of High Performance Polymer-based Composites Guangdong ProvinceSchool of ChemistrySun Yat-Sen UniversityGuangzhou 510275China School of Chemical Engineering and Light Industry Guangdong University of TechnologyGuangzhou 510006China

Metal-containing covalent organic frameworks(MCOFs),as a class of crystalline organic polymers with abundant single-atom metal sites,can respond effectively to various vital reactions,including hydrogen evolution reaction(HER),CO_(2) reduction reaction(CO_(2)RR),oxygen reduction reaction(ORR)and oxygen evolution reaction(OER).The advent of MCOFs provides a platform for the establishment of model catalysts with highly repetitive structure to facilitate theoretical calculations and high-throughput screening while designing flexibility in mono-mer construction to lay the foundation for the development of highly selective and active photo/*** this review,we summarize the recent progress in this field and highlight several important MCOFs photo/electrocatalysts for OER,ORR,HER,and CO_(2)***,various approaches are also mentioned to improve or optimize the catalysts and indicate the future research direction on enhancing the performance of MCOFs catalysts based on the current existing challenges.

关键词： Covalent organic frameworks Hydrogen evolution reaction Carbon dioxide reduction reaction Oxygen reduction reaction Oxygen evolution reaction

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降温过程中NaCl盐渍土相变的电化学特征

岩土工程学报 2025年第1期47卷 200-206页

作者：肖泽岸李康良段杰云王启航郭茂亮太原理工大学土木工程学院山西太原030024

氯盐渍土是中国西北寒旱区一种典型的盐渍土类型,其电化学特征是深入理解盐渍土腐蚀病害机理的关键。为探究盐渍土孔隙溶液相变与其电化学特征之间的联系,以NaCl盐渍粉质黏土为研究对象,测试了不同含盐量和温度条件下NaCl盐渍土的电化... 详细信息

氯盐渍土是中国西北寒旱区一种典型的盐渍土类型,其电化学特征是深入理解盐渍土腐蚀病害机理的关键。为探究盐渍土孔隙溶液相变与其电化学特征之间的联系,以NaCl盐渍粉质黏土为研究对象,测试了不同含盐量和温度条件下NaCl盐渍土的电化学阻抗谱。研究表明:NaCl盐渍土阻抗随着测试频率的增加而逐步降低,并在高频率时逐步达到稳定。NaCl盐渍土的阻抗模的对数值在冻结前随温度的降低线性增加,而在冻结后,冰晶和盐结晶的生成导致土体阻抗模值发生显著增加。NaCl盐渍土在冻结前表现为一段容抗弧,而在冻结后,由相变导致的土体水盐迁移使得土体在出现阻抗弧后又存在一段扩散阻抗。根据土体在冻结前后的导电路径,建立了土体在冻结前后的等效电路模型,并在此基础上分析了土体孔隙溶液相变与对应电路元件之间的联系。此研究对深入理解盐渍土电化学特征及孔隙溶液相变规律具有重要意义。

关键词：氯盐渍土冻结过程电化学阻抗谱相变等效电路模型

ON HERMITIAN POSITIVE DEFINITE SOLUTION OF NONLINEAR MATRIX EQUATION X＋A^＊X^-2A=Q

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Journal of Computational Mathematics 2005年第5期23卷 513-526页

作者： xiao xia guo ICMSEC Academy of Mathematics and System Sciences Chinese Academy of Sciences Beijing 100080

Based on the fixed-point theory, we study the existence and the uniqueness of the maximal Hermitian positive definite solution of the nonlinear matrix equation X＋A^＊X^-2A=Q, where Q is a square Hermitian positive definite matrix and A＊ is the conjugate transpose of the matrix A. We also demonstrate some essential properties and analyze the sensitivity of this solution. In addition, we derive computable error bounds about the approximations to the maximal Hermitian positive definite solution of the nonlinear matrix equation X＋A^＊X^-2A=Q. At last, we further generalize these results to the nonlinear matrix equation X＋A^＊X^-nA=Q, where n≥2 is a given positive integer.

关键词： Nonlinear matrix equation Hermitian positive definite solution Sensitivity analysis Error bound

Comparison of ocular parameters of two biometric measurement devices in highly myopic eyes

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International Journal of Ophthalmology(English edition) 2019年第10期12卷 1548-1554页

作者： xiao-xiao guo Ran You shan-shan Li Xiu-Fen Yang Lu Zhao Fan Zhang Yan-Ling Wang Xi Chen Department of Ophthalmology Beijing Friendship HospitalCapital Medical University

AIM: To compare the differences and agreement of ocular biometric parameters in highly myopic eyes obtained by optical biometric measurement instruments, the OA-2000 and IOLMaster 500. METHODS: Totally, 90 patients(90 eyes) were included. They were divided into high myopia group and control group. Ocular parameters, including axial length(AL), mean keratometry(Km), anterior chamber depth(ACD), and white to white(WTW), were obtained from the OA-2000 and IOLMaster 500. RESULTS: For the control group, we applied BlandAltman graphs to assess the 95% limits of agreement(LoA) for most parameters including AL, ACD, Km, and WTW(-0.24 to 0.29 mm,-0.22 to 0.45 mm,-0.39 to 0.31 D, and-0.90 to 0.86 mm, respectively). In high myopia patients, AL, ACD, Km values had wider 95% LoA(-0.34 to 0.32 mm,-0.36 to 0.34 mm,-0.57 to 0.47 D, respectively), except WTW(-0.80 to 0.68 mm). Differences were not statistically significant between these two instruments(P>0.05). CONCLUSION: Most parameters obtained by the OA-2000 and IOLMaster 500 are comparable, including the AL, ACD, and K values. Among them, the agreement of the high myopia patients is poor compared to the patients without high myopia.

关键词： high myopia optical biometric measurement agreement difference

Measurements of the parapapillary atrophy area and other fundus morphological features in high myopia with or without posterior staphyloma and myopic traction maculopathy

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International Journal of Ophthalmology(English edition) 2020年第8期13卷 1272-1280页

作者： xiao-xiao guo Xi Chen shan-shan Li Min Li Xiu-Fen Yang Lu Zhao Ran You Yan-Ling Wang Department of Ophthalmology Beijing Friendship HospitalCapital Medical UniversityBeijing 100050China Clinical Epidemiology and EBM Unit National Clinical Research Center for Digestive Disease Beijing Friendship HospitalCapital Medical UniversityBeijing 100050China

AIM:To investigate the affecting factors of parapapillary gamma and delta zones and other fundus morphological features in high ***:Seventy high myopia patients were included in this retrospective observational study and 47 patients were *** were divided into three groups:no posterior staphyloma(no PS),PS with myopic traction maculopathy(PS with MTM),and PS without MTM using 3-dimensional magnetic resonance imaging and optical coherence *** patients were fur ther classified into three types[epiretinal membrane,macular hole,and macular retinoschisis(MRS)].Diameters of the gamma and delta zones were measured among other morphometric variables using fundus ***:Of the 70 individuals(127 eyes),the mean age was 57.46±*** univariate analysis,morphological features changed most dramatically in PS with MTM patients,who had the largest gamma zone diameters,the largest disk-fovea distance(DFD)and disk-fovea angle,and the smallest angle kappa and vertical distance of temporal arterial ***,their horizontal delta zone diameter was smaller than in the patients with PS yet without *** multivariate analysis,with axial length(AL)and age adjusted,the horizontal diameter in the delta zone of the PS without MTM group was still significantly larger than in the PS with MTM group(P=0.024).Comparing the three subtypes of MTM patients,the diameters of the gamma zone and DFD in MRS group were the ***:The characteristics of the gamma and delta zones change inconsistently in different stages of high *** changes may be associated with anatomical changes caused by local *** such as PS,AL and age play an important *** findings may provide a hint about the pathogenesis of traction in high myopia.

关键词： high myopia myopization myopic traction maculopathy parapapillary delta zone parapapillary gamma zone posterior staphyloma

The PQCD approach towards to next-to-leading order:A short review

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Frontiers of physics 2021年第2期16卷 175-193页

作者： shan Cheng Zhen-Jun xiao School of Physics and Electronics Hunan UniversityChangha 410082 Department of Physics and Institute of Theortical Physics Nangjing Normal UniversityNanjing 210023China

In this short review we elaborate the significance of resummation in kτ factorization theorem,and summarize the recent progresses in the calculations of the next-to-leading order contributions to B meson decays from the perturbative QCD(PQCD)*** also comment on the current sta-tus of the PQCD approach and highlight some key issues to develop it in the near future for more phenomenological applications.

关键词： flavor physics perturbative QCD,kτfactorization next-to-leading order

Timestamp reassignment:taming transaction abort for serializable snapshot isolation

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Frontiers of Computer Science 2019年第6期13卷 1282-1295页

作者： Ningnan ZHOU xiao ZHANG shan WANG MOE Key Laboratory of DEKE Renmin University of ChinaBeijing 100872China School of Information Renmin University of ChinaBeijing 100872China

Serializable snapshot isolation(SSI)is a promising technique to exploit parallelism for multi-core ***,SSI suffers from excessive transaction *** remedies have three drawbacks:1)tracking prohibitively transitive dependencies;2)aborting on every writewrite conflict;and 3)requiring manual annotation on transaction *** this paper,we propose to suppress transaction aborts by reassigning *** combine static analysis with augmented query *** this way,we save both aborts caused by read-write and write-write conflicts,without tracking transitive dependency and annotating transaction *** such,our approach does not exhibit drawbacks of existing *** experiments demonstrate the effectiveness and practicality of our approach.

关键词： serializable snapshot isolation timestamp reassignment static analysis augmented query plan

A mathematical model capable of describing the liquid flow mainly in a blast furnace

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International Journal of Minerals,Metallurgy and Materials 2009年第5期16卷 505-511页

作者： Cheng-shan Wang xiao-jing Mu College of Materials Science and Engineering Chongqing University Chongqing 400045 China College of Chemistry and Chemical Engineering Chongqing University Chongqing 400045 China

The molten liquid flow inside a packed bed is a familiar momentum transportation phenomenon in a blast furnace. With regard to the reported mathematical models describing the liquid flow within a packed bed, there are some obstacles for their application in engineering design, or some limitations in the model itself. To overcome these problems, the forces from the packed bed to the liquid flow were divided into appropriate body and surface forces on the basis of three assumptions. Consequently, a new mathematical model was built to present the liquid flow inside the coke bed in a blast furnace. The mathematical model can predict the distribution of liquid flowrate and the liquid flowing range inside the packed bed at any time. The predicted results of this model accord well with the experimental data. The model will be applied considerably better in the simulation on the ironmaking process compared with the existent models.

关键词： ironmaking process blast furnace packed bed discrete flow mathematical model