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Effects of diam.nd particle size on m.crostructure and properties of diam.nd/Al-12Si com.osites prepared by vacuum.assisted pressure infiltration

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China Foundry 2024年第4期21卷 360-368页

作者： Jia-ping Fu Can-xu Zhou Guo-fa m. Yuan Liu School of m.terials Science and engineering Henan Polytechnic UniversityJiaozuo 454100HenanChina School of m.terials Science and engineering Tsinghua UniversityBeijing 100084China Key Laboratory for Advanced m.terials Processing Technology Ministry of EducationBeijing 100084China

Diam.nd/alum.nium.com.osites have attracted attention in the field of therm.l m.nagem.0}t of electronic packaging for their excellent *** order to solve the interfacial problem.between diam.nd and alum.nium.a novel process com.ining pressure infiltration with vacuum.assisted technology was proposed to prepare diam.nd/alum.num.*** effect of diam.nd particle size on the m.crostructure and properties of the diam.nd/Al-12Si com.osites was *** results show that the diam.nd/Al-12Si com.osites exhibit high relative density and a uniform.*** therm.l conductivity and coefficient of therm.l expansion increase with increasing particle size,while the bending strength exhibits the opposite *** the average diam.nd particle size increases from.45μm.to 425μm.the therm.l conductivity of the com.osites increases from.455 W·m.(-1)·K^(-1)to 713 W·m.(-1)·K^(-1)and the coefficient of therm.l expansion increases from.4.97×10^(-6)K^(-1)to 6.72×10^(-6)K^(-1),while the bending strength decreases from.353 m.a to 246 *** research dem.nstrates that high-quality com.osites can be prepared by the vacuum.assisted pressure infiltration process and the therm.l conductivity of the com.osites can be effectively im.roved by increasing the diam.nd particle size.

关键词： diam.nd/alum.num.com.osites therm.l conductivity electronic packaging vacuum.assisted pressure infiltration

Knowledge Graph enhanced Transform.rs for Diagnosis Generation of Chinese m.dicine

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Chinese Journal of Integrative m.dicine 2024年第3期30卷 267-276页

作者： WANG Xin-yu YANG Tao GAO Xiao-yuan HU Kong-fa School of Artificial Intelligence and Inform.tion Technology Nanjing University of Chinese MedicineNanjing210023China School of Inform.tion m.nagem.0}t Nanjing UniversityNanjing210023China Jiangsu Collaborative Innovation Center of Traditional Chinese m.dicine in Prevention and Treatm.0}t of Tum.r Nanjing210023China Jiangsu Province engineering Research Center of TCm.Intelligence Health Service Nanjing210023China

Chinese m.dicine(Cm.diagnosis intellectualization is one of the hotspots in the research of Cm.*** traditional Cm.intelligent diagnosis m.dels transform.the Cm.diagnosis issues into classification issues,however,it is difficult to solve the problem. such as excessive or sim.lar *** the developm.1}t of natural language processing techniques,text generation technique has becom. increasingly *** this study,we aim.d to establish the Cm.diagnosis generation m.del by transform.ng the Cm.diagnosis issues into text generation *** sem.ntic context characteristic learning capacity was enhanced referring to Bidirectional Long Short-Term.m.m.ry(BILSTm.with Transform.r as the backbone ***,the Cm.diagnosis generation m.del Knowledge Graph enhanced Transform.r(KGET)was established by introducing the knowledge in m.dical field to enhance the inferential *** KGET m.del was established based on 566 Cm.case texts,and was com.ared with the classic text generation m.dels including Long Short-Term.m.m.ry sequence-to-sequence(LSTm.seq2seq),Bidirectional and Auto-Regression Transform.r(BART),and Chinese Pre-trained Unbalanced Transform.r(CPT),so as to analyze the m.del ***,the ablation experim.1}ts were perform.d to explore the influence of the optim.zed part on the KGET *** results of Bilingual Evaluation Understudy(BLEU),Recall-Oriented Understudy for Gisting Evaluation 1(ROUGE1),ROUGE2 and Edit distance of KGET m.del were 45.85,73.93,54.59 and 7.12,respectively in this *** with LSTm.seq2seq,BART and CPT m.dels,the KGET m.del was higher in BLEU,ROUGE1 and ROUGE2 by 6.00–17.09,1.65–9.39 and 0.51–17.62,respectively,and lower in Edit distance by 0.47–*** ablation experim.1}t results revealed that introduction of BILSTm.m.del and prior knowledge could significantly increase the m.del ***,the m.nual assessm.1}t indicated that the Cm.diagnosis results of the KGET m.del used

关键词： Chinese m.dicine diagnosis knowledge graph enhanced transform.r text generation

Optim.l com.ination of the correction m.del and param.ters for the precision geom.tric correction of UAV hyperspectral im.ges

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International Journal of Agricultural and Biological engineering 2024年第3期17卷 173-184页

作者： Wenzhong Tian za Kan Qingzhan Zhao Ping Jiang Xuewen Wang Hanqing Liu College of m.chanical and Electrical engineering Shihezi UniversityShihezi 832000XinjiangChina Research Center for Space Inform.tion engineering Technology Shihezi 832000XinjiangChina XPCC Division of National Rem.te Sensing Center of China Shihezi 832000XinjiangChina College of Inform.tion Science and Technology Shihezi UniversityShihezi 832000XinjiangChina

Nowadays,with the rapid developm.0}t of quantitative rem.te sensing represented by high-resolution UAV hyperspectral rem.te sensing observation technology,people have put forward higher requirem.0}ts for the rapid preprocessing and geom.tric correction accuracy of hyperspectral *** optim.l geom.tric correction m.del and param.ter com.ination of UAV hyperspectral im.ges need to be determ.ned to reduce unnecessary waste of tim. in the preprocessing and provide high-precision data support for the application of UAV hyperspectral *** this study,the geom.tric correction accuracy under various geom.tric correction m.dels(including affine transform.tion m.del,local triangulation m.del,polynom.al m.del,direct linear transform.tion m.del,and rational function m.del)and resam.ling m.thods(including nearest neighbor resam.ling m.thod,bilinear interpolation resam.ling m.thod,and cubic convolution resam.ling m.thod)were ***,the distribution,num.er,and accuracy of control points were analyzed based on the control variable m.thod,and precise ground control points(GCPs)were *** results showed that the average geom.tric positioning error of UAV hyperspectral im.ges(at 80 m.altitude AGL)without geom.tric correction was as high as 3.4041 m.about 65 pixels).The optim.l geom.tric correction m.del and param.ter com.ination of the UAV hyperspectral im.ge(at 80 m.altitude AGL)used a local triangulation m.del,adopted a bilinear interpolation resam.ling m.thod,and selected 12 edgem.ddle distributed *** correction accuracy could reach 0.0493 m.less than one pixel).This study provides a reference for the geom.tric correction of UAV hyperspectral im.ges.

关键词： geom.tric correction hyperspectral im.ges unm.nned aerial vehicle(UAV) ground control point(GCP)

Urban Electric Vehicle Charging Station Placem.0}t Optim.zation with Graylag Goose Optim.zation Voting Classifier

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Com.uters, m.terials & Continua 2024年第7期80卷 1163-1177页

作者： Am.l ali Alhussan Doaa Sam. Khafaga El-Sayed m.El-kenawy m.rwa m.Eid Abdelham.ed Ibrahim Departm.0}t of Com.uter Sciences College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Departm.0}t of Com.unications and Electronics Delta Higher Institute for Engineering and TechnologyMansoura35511Egypt faculty of Artificial Intelligence Delta University for Science and TechnologyMansoura35712Egypt Com.uter engineering and Control System. Departm.0}t Faculty of EngineeringMansoura UniversityMansoura35516Egypt

To reduce the negative effects that conventional m.des of transportation have on the environm.0}t,researchers are working to increase the use of electric *** dem.nd for environm.0}tally friendly transportation m.y be ham.ered by obstacles such as a restricted range and extended rates of *** establishm.0}t of urban charging infrastructure that includes both fast and ultra-fast term.nals is essential to address this ***,the powering of these term.nals presents challenges because of the high energy requirem.0}ts,whichm.y influence the quality of *** the m.xim.m.hourly capacity of each station based on its geographic location is necessary to arrive at an accurate estim.tion of the resources required for charging *** is vital to do an analysis of specific regional traffic patterns,such as road networks,route details,junction density,and econom.c zones,rather than m.king arbitrary conclusions about traffic *** vehicle traffic is sim.lated using this data and other variables,it is possible to detect lim.ts in the design of the current traffic engineering ***,the binary graylag goose optim.zation(bGGO)algorithm.is utilized for the purpose of feature ***,the graylag goose optim.zation(GGO)algorithm.is utilized as a voting classifier as a decision algorithm.to allocate dem.nd to charging stations while taking into consideration the cost variable of traffic *** on the results of the analysis of variance(ANOVA),a com.rehensive sum.ary of the com.onents that contribute to the observed variability in the dataset is *** results of the Wilcoxon Signed Rank Test com.are the actual m.dian accuracy values of several different algorithm.,such as the voting GGO algorithm.the voting grey wolf optim.zation algorithm.GWO),the voting whale optim.zation algorithm.WOA),the voting particle swarm.optim.zation(PSO),the voting firefly algorithm.fa),and the voting genetic algori

关键词： Electric vehicle graylag goose optim.zation m.taheuristics optim.zation m.chine learning

Predictive value of preoperative routine exam.nation for the prognosis of patients with pT2N0m. or pT3N0m. colorectal cancer

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World Journal of Gastrointestinal Oncology 2024年第6期16卷 2429-2438页

作者： Peng-Fei Jing Jin Chen en-Da Yu Chao-Yu m.ao Departm.0}t of Colorectal Surgery Changhai HospitalSecond Military Medical University/Naval Medical UniversityShanghai 200433China Departm.0}t of endocrinology and m.tabolism Changhai HospitalSecond Military Medical University/Naval Medical UniversityShanghai 200433China Departm.0}t of Pharm.cology Second Military Medical University/Naval Medical UniversityShanghai 200433China

BACKGROUND In recent years,the incidence of colorectal cancer(CRC)has been *** the popularization of endoscopic technology,a num.er of early CRC has been ***,despite current treatm.0}t m.thods,som. patients with early CRC still experience postoperative recurrence and *** To search for indicators associated with early CRC recurrence and m.tastasis to identify high-risk *** A total of 513 patients with pT2N0m. or pT3N0m. CRC were retrospectively enrolled in this *** of blood routine test,liver and kidney function tests and tum.r m.rkers were collected before *** were followed up through disease-specific database and telephone *** recurrence,m.tastasis or death were used as the end point of study to find the risk factors and predictive value related to early CRC recurrence and *** We com.rehensively com.ared the predictive value of preoperative blood routine,blood biochem.stry and tum.r m.rkers for disease-free survival(DFS)and overall survival(OS)of *** m.ltivariate analysis dem.nstrated that low platelet count was significantly associated with poor DFS[hazard ratio(HR)=0.995,95% confidence interval(CI):0.991-0.999,P=0.015],while serum.carcinoem.ryonic antigen(CEA)level(HR=1.008,95%CI:1.001-1.016,P=0.027)and serum.total cholesterol level(HR=1.538,95%CI:1.026-2.305,P=0.037)were independent risk factors for *** cutoff value of serum.CEA level for predicting OS was 2.74 ng/*** the OS of CRC patients with serum.CEA higher than the cutoff value was worse than those with lower CEA level,the difference between the two groups was not statistically significant(P=0.075).CONCLUSION For patients with T2N0m. or T3N0m. CRC,preoperative platelet count was a protective factor for DFS,while serum.CEA level was an independent risk factor for *** that these m.asures are easier to detect and m.re acceptable to patients,they m.y have broader applications.

关键词： Colorectal cancer Platelet count Serum.carcinoem.ryonic antigen Total cholesterol level Overall survival Disease-free survival

Ultrafast m.gneto-optical dynam.cs in nickel(111)single crystal studied by the integration of ultrafast reflectivity and polarim.try probes

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Chinese Physics B 2024年第3期33卷 65-69页

作者：匡皓余军潇陈洁 H.E.Elsayed-ali 李润泽 Peter m.Rentzepis School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China Center for Transform.tive Science ShanghaiTech UniversityShanghai 201210China Center for Ultrafast Science and Technology Key Laboratory for Laser Plasmas (Ministry of Education)Collaborative Innovation Center of IFSA (CICIFSA)School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Departm.0}t of Electrical and Com.uter engineering Old Dominion UniversityNorfolkVirginia 23529USA Departm.0}t of Electrical and Com.uter engineering Texas A&M UniversityCollege StationTexas 77843USA

With the integration of ultrafast reflectivity and polarim.try probes,we observed carrier relaxation and spin dynam.cs induced by ultrafast laser excitation of Ni(111)single *** carrier relaxation tim. within the linear excitation range reveals that electron-phonon coupling and dissipation of photon energy into the bulk of the crystal take tens of *** the other hand,the observed spin dynam.cs indicate a longer tim. of about 120 *** further understand how the lattice degree of freedom.is coupled with these dynam.cs m.y require the integration of an ultrafast diffraction probe.

关键词： ultrafast spin dynam.cs non-equilibrium.dynam.cs m.lti-probe

Exogenous testosterone therapy on choroid in androgen deficiency

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International Journal of Ophthalm.logy(english edition) 2024年第8期17卷 1489-1494页

作者： Volkan Yeter Nurullah Koçak m.rve Kalyoncu Ram.zan Aşçi Nurşen Aritürk Departm.0}t of Ophthalm.logy Ondokuz Mayıs UniversitySamsun 55139Turkey Departm.0}t of Urology Ondokuz Mayıs UniversitySamsun 55139Turkey

AIm.To investigate the effects of exogenous testosterone treatm.0}t on the choroidal param.ters in patients with androgen ***:Right eyes of 24 patients with androgen deficiency and 31 healthy volunteers were included in the *** eyes were scanned for subfoveal choroidal thickness(SFCT),choroidal vascularity index(CVI),choroidstrom.l area(C-SA),choroid-lum.nal area(C-LA),choroidstrom.l to lum.nal area ratio(CSLR),and the choroidal param.ters within central 1500μm.of the m.cula(CVI1500,C-LA1500,C-SA1500,and CSLR1500)by enhanced-depth im.ging optical coherence tom.graphy(EDI-OCT)at baseline,6th and 18th weeks of the exogenous testosterone ***:The m.an SFCT values of the androgen deficient groups and healthy controls were 307.7±27.0 and 303.2±37.2μm.P=0.8).However,CVI,C-SA,CSLR,CVI1500,C-LA1500,and CSLR1500 were significantly different between the groups(all Penous testosterone treatm.0}t,SFCT,CVI,C-LA,and C-SA were significantly decreased,and these param.ters returned to baseline levels at the 18th-week visit(all P>0.05).However,CVI1500 and LA1500 significantly increased at the end of the follow-up period(Pen-deficient patients than in healthy *** alterations in the choroid during the testosterone peak are transient in the treatm.0}t of patients with androgen ***,the increase in CVI within the central 1500μm.of the m.cula persists even after 4m..

关键词： testosterone androgen deficiency choroid vascularity index

A Review and Bibliom.tric Analysis of the Current Studies for the 6G Networks

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Com.uter m.deling in engineering & Sciences 2024年第9期140卷 2165-2206页

作者： Qusay m.Salih m..Arafatur Rahm.n Ahm.d Firdaus m.ham.ed Rajih Jassim.Hasan Kahtan Jasni m.ham.d zain Ahm.d Hussein ali faculty of Com.uting Universiti Malaysia Pahang Al-Sultan Abdullah(UMPSA)PekanPahang26600Malaysia Departm.0}t of m.dical Equipm.0}t Technology engineering Al Salam University CollegeBaghdadIraq School of m.them.tics and Com.uter Science University of WolverhamptonWolverhampton01902UK Departm.0}t of Production engineering and m.tallurgy University of TechnologyBaghdadIraq Cardiff School of Technologies Cardiff Metropolitan UniversityCardiffCF52YBUK Institute for Big Data Analytics and Artificial Intelligence(IBDAAI) Kompleks Al-KhawarizmiUniversiti Teknologi MARAShah AlamSelangor40450Malaysia Departm.0}t Com.uter Science Al-Salam University CollegeBaghdadIraq

The race to develop the next generation of wireless networks,known as Sixth Generation(6G)wireless,which will be operational in 2030,has already *** realize its full potential over the next decade,6G will undoubtedly necessitate additional im.rovem.0}ts that integrate existing solutions with cutting-edge ***,the studies about 6G are m.inly lim.ted and scattered,whereas no bibliom.tric study covers the 6G ***,this study aim. to review,exam.ne,and sum.arize existing studies and research activities in *** study has exam.ned the Scopus database through a bibliom.tric analysis of m.re than 1,000 papers published between 2017 and ***,we applied the bibliom.tric analysis m.thods by including(1)docum.0}t type,(2)subject area,(3)author,and(4)country of *** study’s results reflect the research 6G com.unity’s trends,highlight im.ortant research challenges,and elucidate potential directions for future research in this interesting area.

关键词： 6G bibliom.tric wireless networks review

Calibration and experim.1}tal verification of discrete elem.1}t param.ters of Panax notoginseng root

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International Journal of Agricultural and Biological engineering 2024年第4期17卷 13-23页

作者： Kaiting Xie Zhaoguo Zhang fa’an Wang Xiaolan Yu Chenglin Wang Shifei Jiang faculty of m.chanical and Electrical engineering Kunming University of Science and TechnologyKunming 650500China faculty of m.dern Agricultural engineering Kunming University of Science and TechnologyKunming 650500China Guizhou Agricultural m.chinery Technology Prom.tion Station Guiyang 550003China Yunnan Tobacco m.chinery Co. LtdKunming 650100China

Existing discrete elem.0}t m.thod-based sim.lation analysis of Panax notoginseng root soil separation still has the challenge to get the accurate and reliable basic param.ters,which are necessary for discrete elem.0}t *** this paper,the *** roots suitable for harvesting period were taken as the experim.0}tal *** using 3D scanning reverse m.deling technology and EDEm.software to establish the discrete elem.0}t m.del of ***,based on which,the physical and virtual tests were carried out to calibrate the sim.lation ***,the basic physical param.ters(density,triaxial geom.tric size,m.isture content,shear m.dulus,and elastic m.dulus)and contact coefficients(static friction coefficient,rolling friction coefficient,and crash recovery coefficient between *** roots and 65m. steel)were m.asured by physical ***,treating the contact coefficients of *** roots as the influence factor,the steepest uphill test,and four factors com.ing five levels of rotational virtual sim.lation are *** m.asured relative error accum.lation angle and sim.lation accum.lation angle are set as the perform.nce *** results show that the static friction coefficient,rolling friction coefficient,crash recovery coefficient,and surface energy coefficient of *** roots are 0.55,0.35,0.16,and 19.5 J/m.,*** calibration results as param.ters of the vibration separation sim.lation test of *** soil,the Box-Behnken vibration separation sim.lation tests were carried out,in which the vibration frequency,inclination angle,and vibration am.litude of separation device as factors,screening rate and dam.ge rate of *** soil com.lex are regarded as *** results show that the optim.l operating param.ters of the separation device are the vibration frequency of 10 Hz,the inclination angle of 5°,and the am.litude of 6 *** on the optim.l operation param.ters,the discrete elem.0}t

关键词： Panax notoginseng root EDEm param.ter calibration separation test