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Tungsten 2024年第4期6卷 663-668页

作者： Hai-Long Liao xiu-Lin wu xiu-Juan Sun College of Chemistry Xiangtan University Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education Xiangtan University

Clean hydrogen production based on pure water electrolysis has been considered a potential way to solve the energy crisis and serious environmental ***,the disadvantaged high reaction potential of anodic oxygen evolut...

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Survival prognostic analysis of laparoscopic D2 radical resection for locally advanced gastric cancer: A multicenter cohort study

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World Journal of Gastrointestinal Surgery 2024年第8期16卷 2451-2460页

作者： xiu-Ming Sun Kui Liu Wen wu Chao Meng Department of Pain Management Affiliated Hospital of Qingdao UniversityQingdao 266000Shandong ProvinceChina Department of Hepatobiliary Surgery Affiliated Hospital of Qingdao UniversityQingdao 266000Shandong ProvinceChina Department of Gastrointestinal Surgery The First Affiliated Hospital of Naval Medical UniversityShanghai 200433China

BACKGROUND With the development of minimally invasive surgical techniques,the use of laparoscopic D2 radical surgery for the treatment of locally advanced gastric cancer(GC)has gradually ***,the effect of this procedure on survival and prognosis remains *** study evaluated the survival and prognosis of patients receiving laparoscopic D2 radical resection for the treatment of locally advanced GC to provide more reliable clinical evidence,guide clinical decision-making,optimize treatment strategies,and improve the survival rate and quality of life of *** A retrospective cohort study was *** data from 652 patients with locally advanced GC in our hospitals from December 2013 to December 2023 were *** were 442 males and 210 *** mean age was 57±12 *** patients underwent a laparoscopic D2 radical operation for distal *** patients were followed up in the outpatient department and by telephone to determine their tumor recurrence,metastasis,and *** follow-up period ended in December *** distributed data are expressed as the mean±SD,and normally distributed data are expressed as M(Q1,Q3)or M(range).Statistical data are expressed as absolute numbers or percentages;theχ2 test was used for comparisons between groups,and the Mann-Whitney U nonparametric test was used for comparisons of rank *** life table method was used to calculate the survival rate,the Kaplan-Meier method was used to construct survival curves,the log rank test was used for survival analysis,and the Cox risk regression model was used for univariate and multifactor *** The median overall survival(OS)time for the 652 patients was 81 months,with a 10-year OS rate of 46.1%.Patients with TNM stages II and III had 10-year OS rates of 59.6%and 37.5%,respectively,which were significantly different(P<0.05).Univariate analysis indicated that factors such as age,maximum tumor diameter,tumor

关键词： Gastric neoplasms Chinese Laparoscopic Gastrointestinal Surgery Study Group Laparoscopic surgery Locally advanced gastric cancer D2 lymph node dissection

Strategy and technique for surgical treatment of Ebstein’s anomaly

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Chinese Medical Journal 2024年第10期137卷 1218-1224页

作者： Qingyu wu Xiaoya zhang Mingkui zhang Hongyin Li Dongya zhang Lianyi Wang Qingfeng wu Cardiac Center Division of Cardiac SurgeryThe First Hospital of Tsinghua UniversityBeijing 100016China

Background:Ebstein’s anomaly(EA)is a rare and complex congenital heart anomaly,and the effect of surgical treatment is not *** study aims to introduce our experience in management strategies,surgical techniques,and operative indications for patients with Ebstein’s ***:A retrospective study of 258 operations was performed in 253 patients by the same cardiac surgeon in The First Hospital of Tsinghua University between March 2004 and January 2020.32 patients had previously received cardiac surgery in other *** clinical data including diagnosis,operative indications,techniques,pathological changes,and survival rates were collected and ***:Anatomical correction was performed in 203(78.7%)operations,1½ventricle repair in 38(14.7%)operations,tricuspid valve repair only in four operations(1.6%),tricuspid valve replacement in ten(3.9%),total cavopulmonary connection(TCPC)in two(0.8%),and Glenn operation in one operation(0.4%).Reoperation was performed in five patients(2.0%)during *** them,tricuspid valve replacement was performed in one patient,1½ventricle repair in two patients,and tricuspid valve annulus reinforcement in two *** patients died with an early mortality rate of 2.0%.Complete atrioventricular conduction block was complicated in one patient(0.4%).A total of 244 patients was followed up(four in the 253 patients lost)with a duration of 3.0-168.0(87.6±38.4)*** function of 244 patients improved significantly with mean New York Heart Association(NYHA)functional class recovery from 3.5 to *** mean grade of tricuspid valve regurgitation improved from 3.6 to *** late deaths(1.2%)*** survival rates at five and ten years after surgery were 98.6%and 98.2%,*** was performed in five patients(2.0%)during the follow-up ***:Based on our management strategies and operative principles and techniques,anatomical correction of EA is capable of achiev

关键词： Ebstein’s anomaly Anatomical repair Surgical treatment Long-term result

Effective Identity Authentication Based on Multiattribute Centers for Secure Government Data Sharing

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Tsinghua Science and Technology 2024年第3期29卷 736-752页

作者： Meiquan Wang Junhua wu Tongdui zhang Junhao wu Guangshun Li School of Computer Science Qufu Normal UniversityRizhao 276800China Science and Technology Innovation Service Institution of Rizhao Rizhao 276800China

As one of the essential steps to secure government data sharing,Identity Authentication(IA)plays a vital role in the processing of large ***,the centralized IA scheme based on a trusted third party presents problems of information leakage and single point of failure,and those related to key ***,herein,an effective IA model based on multiattribute centers is ***,a private key of each attribute of a data requester is generated by the attribute authorization *** obtaining the private key of attribute,the data requester generates a personal private ***,a dynamic key generation algorithm is proposed,which combines blockchain and smart contracts to periodically update the key of a data requester to prevent theft by external attackers,ensure the traceability of IA,and reduce the risk of privacy ***,the combination of blockchain and interplanetary file systems is used to store attribute field information of the data requester to further reduce the cost of blockchain information storage and improve the effectiveness of information *** results show that the proposed model ensures the privacy and security of identity information and outperforms similar authentication models in terms of computational and communication costs.

关键词： blockchain identity authentication distribution dynamic key generation

Numerical Investigation on Characteristics of Supercritical CO_(2)Heat Transfer in Vertical Circular Tubes with Circumferentially Half-Side Heating

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Journal of Thermal Science 2024年第5期33卷 1744-1756页

作者： zhang Yan zhang Xinyi YAN Chenshuai wu Wenhua GAO Erman School of Energy and Power Engineering Northeast Electric Power UniversityJilin 132012China

The design of heat exchangers in the advanced supercritical power conversion system cannot be separated from the study of heat transfer ***-side heating mode is often encountered for solar receiver and supercritical ***,the characteristics of supercritical CO_(2)(sCO_(2))convection heat transfer in vertical tubes with circumferentially half-side heating was numerically investigated through the SST k-ωturbulent model which matches well with the experimental ***,heat transfer between sCO_(2)upflow and downflow was *** to film boiling heat transfer at subcritical pressure,numerical results were processed according to the supercritical pseudo-phase transition hypothesis,with liquid-like phase in the tube core region and vapor-like film in the region near the heated tube *** structure of two layers was demarcated by pseudo-critical temperature T_(pc).Therefore,sCO_(2)heat transfer was assessed according to double thermal resistances caused by vapor-like film near the wall and core liquid-like *** findings suggest that wall temperature for upflow is higher than that for downflow,which is attributed to larger thermal resistance in the fluid domain for upflow than that for *** difference guarantees the excellent heat transfer performance for downflow than *** is also further concluded that the formation of vapor-like film near the wall due to pseudo-phase transition plays a key role in dominating wall temperature and inducing heat transfer deterioration in half-side heating *** present contribution is significant to the design of supercritical heat exchanger under half-side heating mode.

关键词： supercritical CO_(2) pseudo-phase transition half-side heating thermal resistance flow direction

In situ meso-tetra(4-carboxyphenyl)porphyrin ligand substitution in Hf-MOF for enhanced catalytic activity and stability in photoredox reactions

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Rare Metals 2024年第6期43卷 2682-2694页

作者： Jie Hu Hong-Xin Lao xiu-wu Xu Wei-Kang Wang Le-Le Wang Qin-Qin Liu School of Materials Science and Engineering Jiangsu UniversityZhenjiang 212013China College of Chemistry and Materials Engineering Research Center of Carbon NeutralityAnhui Normal UniversityWuhu 241002China Fujian Provincial Key Laboratory of Ecology-Toxicological Effects and Control for Emerging Contaminants Putian UniversityPutian 351100China

Though there are numerous intrinsic merits of metal-organic frameworks(MOFs),low charge separation efficiency has imposed heavy restrictions on their photocatalytic ***,in situ porphyrin ligand substitution,as a strategy for improving the charge separation efficiency and increasing the amounts of active sites,has been designed and realized in a Hf-biphenyl dicarboxylic acid(BPDC)***,a size and geometry matched meso-tetra(4-carboxyphenyl)porphyrin(TCPP)ligand was selected and doped into Hf-BPDC MOF by forming coordinating bonds with Hf centers,forming dualligand Hf-BPDC-TCPP *** resultant Hf-BPDC-TCPP MOF showed significantly improved activity and chemical stability in the photocatalytic H_(2)generation(261μmol·g^(-1)·h^(-1))and tetracycline(TC)degradation reactions(95.8%),which was 48 and 1.47 folds higher than that of the Hf-BPDC *** and electrochemical studies revealed that the introduction of porphyrin ligand could generate a stronger internal electric field for boosting the charge separation and transfer,increase the specific surface area for providing more active sites,and narrow the band gap to enhance the visible light *** in situ ligand substitution method provides a promising approach to build a tunable platform for constructing high-performance MOF photocatalysts.

关键词： Ligand substitution Metal organic frameworks Meso-tetra(4-carboxyphenyl)porphyrin Hydrogen evolution reaction Tetracycline degradation

Impact of letters to the editor and publications in 2023

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Zoological Research 2024年第1期45卷 136-137页

作者： xiu-Ping zhang Xue-Long Jiang Yong-Gang Yao Editorial Office of ZR&ZRDC Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China

A letter to the editor constitutes a short communication addressing a range of topics pertinent to the readership of a journal(Dkhar,2018).This format offers several benefits,such as timeliness,accessibility,innovation,and conciseness,thereby serving as an effective means to disseminate cuttingedge scientific *** the past five years,there has been a considerable increase in the number of letters published,representing the highest growth rate(approximately 20%)observed in the last three decades(Figure 1A).In the field of academic publishing,letters to the editor are typically more concise than typical research papers.

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Energy Efficiency Maximization in Mobile Edge Computing Networks via IRS assisted UAV Communications

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Computer Modeling in Engineering & Sciences 2024年第2期138卷 1865-1884页

作者： Ying zhang Weiming Niu Supu xiu Guangchen Mu School of Electronic Information Engineering Henan Institute of TechnologyXinxiang453003China Houde College Henan Institute of TechnologyXinxiang453003China Department of Science Henan Institute of TechnologyXinxiang453003China

In this paper,we investigate the energy efficiency maximization for mobile edge computing(MEC)in intelligent reflecting surface(IRS)assisted unmanned aerial vehicle(UAV)*** particular,UAVcan collect the computing tasks of the terrestrial users and transmit the results back to them after *** jointly optimize the users’transmitted beamforming and uploading ratios,the phase shift matrix of IRS,and the UAV trajectory to improve the energy *** formulated optimization problem is highly non-convex and difficult to be solved ***,we decompose the original problem into three *** first propose the successive convex approximation(SCA)based method to design the beamforming of the users and the phase shift matrix of IRS,and apply the Lagrange dual method to obtain a closed-form expression of the uploading *** the trajectory optimization,we propose a block coordinate descent(BCD)based method to obtain a local optimal ***,we propose the alternating optimization(AO)based overall algorithmand analyzed its complexity to be equivalent or lower than existing *** results show the superiority of the proposedmethod compared with existing schemes in energy efficiency.

关键词： Mobile edge computing(MEC) unmanned aerial vehicle(UAV) intelligent reflecting surface(IRS) energy efficiency

Low-permittivity LiLn(PO_(3))_(4)(Ln=La,Sm,Eu)dielectric ceramics for microwave/millimeter-wave communication

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Journal of Advanced Ceramics 2024年第5期13卷 602-620页

作者： Huanrong Tian Xiaohan zhang Zidong zhang Yao Liu Haitao wu Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials(Ministry of Education) Shandong UniversityJinan 250061China School of Materials Science and Engineering Shandong UniversityJinan 250061China School of Environmental and Material Engineering Yantai UniversityYantai 264005China

The development of dielectric materials with low permittivity and low loss is a great challenge in wireless *** this study,LiLn(PO_(3))_(4)(Ln=La,Sm,Eu)ceramic systems were successfully prepared using the traditional solid-state method.X-ray diffraction analysis indicated that the LiLn(PO_(3))_(4)ceramics crystallized in a monoclinic structure when sintered at 850–940℃.The characteristic peak shifted to higher angles with variations in the Ln element,which was ascribed to a reduction in the cell *** analysis by structure refinement revealed that the reduction in the cell volume resulted from the decrease in chemical bond lengths and the compression of[LiO_(4)]and[PO_(4)]***,the LiLn(PO_(3))_(4)ceramic system displayed exceptional performance at low sintering temperatures(910–925℃),including a high quality factor(Q·f)of 41,607–75,968 GHz,low temperature coefficient of resonant frequency(τ_(f))ranging from−19.64 to−47.49 ppm/℃,low permittivity(ε_(r))between 5.04 and 5.26,and low density(3.04–3.26 g/cm^(3)).The application of Phillips–van Vechten–Levine(P–V–L)theory revealed that the increased Q·f value of the LiLn(PO_(3))_(4)systems can be attributed to the enhanced packing fraction,bond covalency,and lattice energy,and the stability of τ_(f) was associated with the increase in the bond ***,a prototype microstrip patch antenna using LiEu(PO_(3))_(4) ceramics was *** measurement results demonstrated excellent antenna performance with a bandwidth of 360 MHz and a peak gain of 5.11 dB at a central frequency of 5.08 ***,low-εr LiLn(PO_(3))_(4)ceramic systems are promising candidates for microwave/millimeter-wave communication.

关键词： low permittivity LiLn(PO_(3))_(4) microwave dielectric properties Phillips-van Vechten-Levine(P-V-L)theory microstrip patch antenna

Potential Provoking Effects of Environmental Pollutants on Food Allergy:An Issue That Is Gaining Increasing Attention

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China CDC weekly 2024年第24期6卷 585-588页

作者： Yiyun zhang Lei zhang Di wu Yongning wu School of Population Medicine and Public Health Chinese Academy of Medical Sciences&Peking Union Medical CollegeBeijingChina Department of Nutrition and Food Safety Peking Union Medical CollegeResearch Unit of Food SafetyChinese Academy of Medical SciencesBeijingChina NHC Key Lab of Food Safety Risk Assessment China National Center for Food Safety Risk AssessmentBeijingChina Institute for Global Food Security School of Biological SciencesQueen’s University Belfast19 Chlorine GardensBelfastUnited Kingdom

Allergic diseases are widespread globally,affecting over 40%of the *** allergy(FA),characterized by an abnormal immune response to harmless proteins in foods,is one of these prevalent *** estimates suggest that approximately 220 million people worldwide suffer from FA(1).In children,over one-third of parents report their children experiencing hypersensitive reactions to food,with FA affecting around 8%of this demographic.

关键词： diseases Allergy globally