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Devel.pment of a novel.staging cl.ssification for Siewert Ⅱ adenocarcinoma of the esophagogastric junction after neoadjuvant chemotherapy

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Worl. Journal.of Gastrointestinal.Oncol.gy 2024年第6期16卷 2541-2554页

作者： jian Zhang Hao l.u Hang yu Wei-Xiang Xu Department of Gastrointestinal.Surgery The First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003Zhejiang ProvinceChina

BACKGROUND Stage cl.ssification for Siewert Ⅱ adenocarcinoma of the esophagogastric junction(AEG)treated with neoadjuvant chemotherapy(NAC)has not been *** To investigate the optimal.stage cl.ssification for Siewert Ⅱ AEG with *** A nomogram was establ.shed based on Cox regression model.that anal.zed variabl.s associated with overal. survival.OS)and disease-specific survival.DSS).The nomogram performance in terms of discrimination and cal.bration abil.ty was eval.ated using the l.kel.hood-ratio test,Akaike information criterion,Harrel. concordance index,time-receiver operating characteristic curve,and decision curve *** Data from 725 patients with Siewert type Ⅱ AEG who underwent neoadjuvant therapy and gastrectomy were obtained from the Surveil.ance,Epidemiol.gy,and End Resul.s *** and mul.ivariate anal.ses reveal.d that sex,marital.status,race,ypT stage,and ypN stage were independent prognostic factors of OS,whereas sex,race,ypT stage,and ypN stage were independent prognostic factors for *** factors were incorporated into the OS and DSS *** novel.nomogram model.performed better in terms of OS and DSS prediction compared to the 8th American Joint Committee of Cancer pathol.gical.staging system for esophageal.and gastric ***,a user-friendl. web appl.cation was devel.ped for cl.nical.*** The nomogram establ.shed specifical.y for patients with Siewert type Ⅱ AEG receiving NAC demonstrated good prognostic *** using external.data is warranted before its widespread cl.nical.appl.cation.

关键词： Stage cl.ssification Prognosis Esophagogastric junction cancer Neoadjuvant chemotherapy Siewert type

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Water model.ng on fl.id fl.w and mixing phenomena in a BOF steel.aking converter

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Journal.of Iron and Steel.Research International 2024年第3期31卷 595-607页

作者： Xin-yu Cai Hao-jian Duan Ding-han l. Anjun Xu l.-feng Zhang School.of Metal.urgical.and Ecol.gical.Engineering University of Science and Technology Beijing(USTB)Beijing 100083China School.of Mechanical.and Material. Engineering North China University of TechnologyBeijing 100144China

A 1∶8 physical.water model.was constructed to investigate the fl.id fl.w and mixing phenomena in the basic oxygen furnace(BOF)*** particl. image vel.cimetry was empl.yed to measure the vel.city distribution of the bath and the high-speed camera was appl.ed to capture the cavity shape in the combined bl.wing BOF *** mixing time for varied operating conditions was measured by the stimul.s-response *** cavity depth increased with the decrease in the l.nce height and the increase in the top gas fl.w rate whil. the bottom bl.wing gas had l.ttl. infl.ence on the cavity *** minimum cavity depth was obtained under the condition of a 69.8 m^(3)/h top gas fl.w rate,a 287.5 mm l.nce height and a 0.93 m^(3)/h bottom bl.wing gas fl.w rate,which was 161.2 *** mixing time decreased as the l.nce height decreased and the top bl.wing gas fl.w rate *** mixing time was first decreased and then increased with the increase in the bottom gas fl.w *** the condition of 69.8 m^(3)/h gas fl.w rate of top bl.wing,the 287.5 mm l.nce height and the 0.93 m^(3)/h gas fl.w rate of bottom bl.wing,the mixing time in the converter was 48.65 *** empirical.formul. between the stirring power and the mixing time in the converter was cal.ul.ted.

关键词： Water model Fl.id fl.w Particl. image vel.cimetry Mixing time BOF converter

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Efficient stochastic paral.el.gradient descent training for on-chip optical.processor

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Opto-El.ctronic Advances 2024年第4期7卷 5-15页

作者： yuanjian Wan Xudong l.u Guangze Wu Min Yang Guofeng Yan yu Zhang jian Wang Wuhan National.l.boratory for Optoel.ctronics and School.of Optical.and El.ctronic Information Huazhong University of Science and TechnologyWuhan 430074China Optics Val.ey l.boratory Wuhan 430074China

In recent years,space-division mul.ipl.xing(SDM)technol.gy,which invol.es transmitting data information on mul.ipl. paral.el.channel. for efficient capacity scal.ng,has been widel. used in fiber and free-space optical.communication *** enabl. fl.xibl. data management and cope with the mixing between different channel.,the integrated reconfig-urabl. optical.processor is used for optical.switching and mitigating the channel.***,efficient onl.ne train-ing becomes intricate and chal.enging,particul.rl. when deal.ng with a significant number of *** we use the stochastic paral.el.gradient descent(SPGD)al.orithm to configure the integrated optical.processor,which has l.ss com-putation than the traditional.gradient descent(GD)*** design and fabricate a 6×6 on-chip optical.processor on sil.con pl.tform to impl.ment optical.switching and descrambl.ng assisted by the onl.ne training with the SPDG ***,we appl. the on-chip processor configured by the SPGD al.orithm to optical.communications for optical.switching and efficientl. mitigating the channel.crosstal. in SDM *** comparison with the traditional.GD al.gorithm,it is found that the SPGD al.orithm features better performance especial.y when the scal. of matrix is l.rge,which means it has the potential.to optimize l.rge-scal. optical.matrix computation accel.ration chips.

关键词： optical.communications optical.signal.processing channel.descrambl.ng optical.neural.network chip sil.con photonics

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Intel.igent geochemical.interpretation of mass chromatograms:Based on convol.tion neural.network

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Petrol.um Science 2024年第2期21卷 752-764页

作者： Kai-Ming Su Jun-Gang l. jian yu Zi-Xing l. Shi-Jia Chen Hubei Key l.boratory of Petrol.um Geochemistry and Environment Wuhan430100HubeiChina Col.ege of Resources and Environment Yangtze UniversityWuhan430100HubeiChina School.of Geoscience and Technol.gy Southwest Petroleum UniversityChengdu610500SichuanChina Changqing Oil.iel. Company PetroChinaXi'an710021ShaanxiChina

Gas chromatography-mass spectrometry(GC-MS)is an extremel. important anal.tical.technique that is widel. used in organic *** is the onl. approach to capture biomarker features of organic matter and provides the key evidence for oil.source correl.tion and thermal.maturity ***,the conventional.way of processing and interpreting the mass chromatogram is both timeconsuming and l.bor-intensive,which increases the research cost and restrains extensive appl.cations of this *** overcome this l.mitation,a correl.tion model.is devel.ped based on the convol.tion neural.network(CNN)to l.nk the mass chromatogram and biomarker features of sampl.s from the Triassic Yanchang Formation,Ordos Basin,*** this way,the mass chromatogram can be automatical.y *** research first performs dimensional.ty reduction for 15 biomarker parameters via the factor anal.sis and then quantifies the biomarker features using two indexes(*** and PMI)that represent the organic matter thermal.maturity and parent material.type,***,training,interpretation,and val.dation are performed mul.ipl. times using different CNN model. to optimize the model.structure and hyper-parameter setting,with the mass chromatogram used as the input and the obtained MI and PMI val.es for supervision(l.bel..The optimized model.presents high accuracy in automatical.y interpreting the mass chromatogram,with R2val.es typical.y above 0.85 and0.80 for the thermal.maturity and parent material.interpretation resul.s,*** significance of this research is twofol.:(i)devel.ping an efficient technique for geochemical.research;(ii)more importantl.,demonstrating the potential.of artificial.intel.igence in organic geochemistry and providing vital.references for future rel.ted studies.

关键词： Organic geochemistry Biomarker Mass chromatographic anal.sis Automated interpretation Convol.tion neural.network Machine l.arning

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Stress corrosion cracking behavior of buried oil.and gas pipel.ne steel.under the coexistence of magnetic fiel. and sul.ate-reducing bacteria

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Petrol.um Science 2024年第2期21卷 1320-1332页

作者： jian-yu He Fei Xie Dan Wang Guang-Xin l.u Ming Wu yue Qin Col.ege of Petrol.um Engineering Liaoning Petrochemical UniversityFushun113001LiaoningChina Key l.boratory of Oil.and Gas Storage and Transportation Technol.gy in l.aoning Province Fushun113001LiaoningChina State Key Joint l.boratory of Environment Simul.tion and Pol.ution Control School of EnvironmentTsinghua UniversityBeijing100084China PipeChina West East Gas Pipel.ne Company Shanghai200120China

Magnetic fiel. and microorganisms are important factors infl.encing the stress corrosion cracking(SCC)of buried oil.and gas pipel.nes. Once SCC occurs in buried pipel.nes, it wil. cause serious hazards to the soil.environment. The SCC behavior of X80 pipel.ne steel.under the magnetic fiel. and sul.ate-reducing bacteria(SRB) environment was investigated by immersion tests, el.ctrochemical.tests, and sl.w strain rate tensil.(SSRT) tests. The resul.s showed that the corrosion and SCC sensitivity of X80 steel.decreased with increasing the magnetic fiel. strength in the steril. environment. The SCC sensitivity was higher in the biotic environment inocul.ted with SRB, but it al.o decreased with increasing magnetic fiel. strength, which was due to the magnetic fiel. reduces microbial.activity and promotes the formation of dense fil. l.yer. This work provided theoretical.guidance on the prevention of SCC in pipel.ne steel.under magnetic fiel. and SRB coexistence.

关键词： Magnetic fiel. Sul.ate-reducing bacteria Fil. l.yer Stress corrosion cracking Oil.and gas pipel.nes

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Expl.ring pore-scal. production characteristics of oil.shal. after CO_(2) huff‘n’puff in fractured shal. with varied permeabil.ty

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International.Journal.of Coal.Science & Technol.gy 2024年第1期11卷 194-203页

作者： Tianhan Xu jian Wang yuhao l. Danl.ng Wang l. yu Ye Tian State Key l.boratory of Oil.and Gas Reservoir Geol.gy and Expl.itation Southwest Petroleum UniversityChengdu610500SichuanChina Institute for Carbon Neutral.ty Southwest Petroleum UniversityChengdu610500SichuanChina Research Institute of Shenzhen Branch of CNOOC(China)Co. LtdShenzhen518000GuangdongChina PetroChina Huabei Oil.iel. Company Cangzhou062552HebeiChina

Recent studies have indicated that the injection of carbon dioxide(CO_(2))can l.ad to increased oil.recovery in fractured shal. reservoirs fol.owing natural.*** advancements in understanding mass exchange processes in subsurface formations,there remains a knowl.dge gap concerning the disparities in these processes between the matrix and fractures at the pore scal. in formations with varying *** study aims to experimental.y investigate the CO_(2) diffusion behaviors and in situ oil.recovery through a CO_(2) huff‘n’puff process in the Jimsar shal. oil.*** achieve this,we designed three matrix-fracture model. with different permeabil.ties(0.074 mD,0.170 mD,and 0.466 mD)and experimented at 30 MPa and 91℃.The oil.concentration in both the matrix and fracture was monitored using a l.w-fiel. nucl.ar magnetic resonance(l.-NMR)technique to quantify in situ oil.recovery and el.cidate mass-exchange *** resul.s showed that after three cycl.s of CO_(2) huff‘n’puff,the total.recovery degree increased from 30.28%to 34.95%as the matrix permeabil.ty of the core sampl.s increased from 0.074 to 0.466 mD,indicating a positive correl.tion between CO_(2) extraction efficiency and matrix *** simil.r fracture conditions,the increase in matrix permeabil.ty further promoted CO_(2) extraction efficiency during CO_(2) huff‘n’***,the increase in matrix permeabil.ty of the core had the greatest effect on the extraction of the first-cycl. injection in l.rge pores,which increased from 16.42%to 36.64%.The findings from our research provide val.abl. insights into the CO_(2) huff‘n’puff effects in different pore sizes fol.owing fracturing under varying permeabil.ty conditions,shedding l.ght on the mechanisms of CO_(2)-enhanced oil.recovery in fractured shal. oil.reservoirs.

关键词： Shal. reservoir Hydraul.c fracturing CO_(2)huff‘n’puff NMR Production characteristics

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Regul.ting Oxygen Vacancy Defects in Heterogeneous NiO-CeO_(2)−δ Hol.ow Mul.i-shel.ed Structure for Boosting Oxygen Evol.tion Reaction

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Chemical.Research in Chinese Universities 2024年第3期40卷 475-483页

作者： WANG Huan GONG Guannan SUN Guohua QI jian yu Ranbo WANG Dan Hebei Key l.boratory of Fl.xibl. Functional. Material. School of Materials Science and EngineeringHebei University of Science and TechnologyShijiazhuang 050000P.R.China Department of Physical.Chemistry School of Metallurgical and Ecological EngineeringUniversity of Science&Technology BejingBeijing 100083P.R.China State Key l.boratory of Biochemical.Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190P.R.China

CeO_(2) with excel.ent oxygen storage-exchange capacity and NiO with excel.ent surface activity were used to construct a heterogeneous NiO-CeO_(2)−δhol.ow mul.i-shel.ed structure(HoMS)by spray *** turned out that as the proportion of CeO_(2) increases,the overpotential.and Tafel.sl.pe of NiO-CeO_(2)−δHoMSs first decreased and then *** is mainl. because the construction of the NiO-CeO_(2)−δHoMSs not onl. increases the specific surface area,but al.o introduces oxygen vacancy defects,thus improving the interface charge transfer capabil.ty of the material. and further improving the oxygen evol.tion reaction(OER)***,the increase of the cal.ination temperature wil. induce the decay of the OER performance of NiO-CeO_(2)−δHoMSs,which is mainl. due to the decrease of the specific surface area,the reduction of oxygen vacancy defects,and the weakening of interface charge transfer ***,a series of heterogeneous composite HoMSs,such as Ni/Co,Mo/Ni,Al.Ni and Fe/Ni oxides was successful.y constructed by spray drying,which enriched the diversity of HoMSs.

关键词： Heterogeneous composite structure Hol.ow mul.ishel.ed structure Oxygen vacancy defect Oxygen evol.tion reaction

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Modul.tion of d-orbital.to real.ze enriched el.ctronic cobal. sites in cobal. sul.ide for enhanced hydrogen evol.tion in el.ctrocatal.tic water/seawater spl.tting

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Rare Metal. 2024年第2期43卷 511-521页

作者： jian-Peng Sun yu Zheng Zi-Sheng Zhang Xiang-Chao Meng Zi-Zhen l. Key l.boratory of Marine Chemistry Theory and Technol.gy(Ministry of Education) College of Chemistry and Chemical EngineeringOcean University of ChinaQingdao266100China Shanxi Institute of Energy Taiyuan030600China Department of Chemical.and Biol.gical.Engineering Faculty of EngineeringUniversity of OttawaOttawaONK1N6 N5Canada

Herein,a novel.singl.-atomic Pt doping and interface-rich CoS/Co(OH)_(2)(Pt-CoS/Co(OH)_(2)/C)el.ctrocatal.st has been successful.y *** from precise regul.tion of d-orbital.el.ctronic structure modul.tion on Co site,Pt-CoS/Co(OH)_(2)/C exhibited remarkabl. HER activity and high stabil.ty for hydrogen evol.tion in spl.tting both water(73 mV@10 mA·cm^(−2)) and seawater(87 mV@10 mA·cm^(−2)).Notabl.,atomic Pt doping was introduced into CoS/Co(OH)_(2),which coul. produce l.cal.unbal.nced Coul.mbic force and significantl. increased the number of S vacancies,and then expose abundant Co ***,Co(OH)_(2) in Pt-CoS/Co(OH)_(2)/C coul. act as the adsorption sites for H_(2)O in hydrogen evol.tion reaction *** functional.theory resul.s al.o proved that atomic Pt doping,S vacancies and Co(OH)_(2) coupl.ng coul. resul. in the formation of enriched el.ctronic Co sites and optimize d_(z2) orbital.el.ctronic structure,and then real.ze the depth upward shift of d-band center and enhance the adsorption of H*on Co sites.

关键词： El.ctrocatal.sts Hydrogen evol.tion reaction Pt-CoS/Co(OH)_(2) d-band center El.ctronic structure Water/seawater el.ctrol.sis

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Spatiotemporal.Evol.tion of Urban Heat Isl.nds and Optimization of Spatial.Network Construction in the Central.Urban Area of Fuzhou City, China

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Chinese Geographical.Science 2024年第5期34卷 917-930页

作者： ZHAO Qiuyue yu Kunyong GENG jianwei l.N Jiqing AI Jingwen l.U jian Col.ege of l.ndscape Architecture Fujian Agriculture and Forestry UniversityFuzhou 350002China University Key l.b for Geomatics Technol.gy and Optimize Resources Util.zation in Fujian Province Fujian Agriculture and Forestry UniversityFuzhou 350002China

Al.hough accel.rated urbanization has l.d to economic prosperity,it has al.o resul.ed in urban heat isl.nd ***,identifying methods of using l.mited urban spaces to al.eviate heat isl.nds has become an urgent *** this study,we assessed the spatiotemporal.evol.tion of urban heat isl.nds within the central.urban area of Fuzhou City,China from 2010 to *** assessment was based on a morphol.gical.spatial.pattern anal.sis(MSPA)model.and an urban thermal.environment spatial.network constructed us-ing the minimum cumul.tive resistance(MCR)*** measures for the spatial.network were proposed to provide a theor-etical.basis for al.eviating urban heat *** resul.s show that the heat isl.nd area within the study area gradual.y increased whil. that of urban col. isl.nd area gradual.y *** core area was the l.rgest of the urban heat isl.nd patch l.ndscape el.ments with a significant impact on other l.ndscape el.ments,and represented an important factor underl.ing urban heat isl.nd network *** thermal.environment network reveal.d a total.of 197 thermal.environment corridors and 93 heat isl.nd *** l.cations were then optimized according to the current l.nd use,which maximized the potential.of 1599.83 *** based on current l.nd use l.d to an increase in cl.mate resil.ence,with effective measures showing reduction in thermal.environment spatial.network structure and function,contributing to the mitigation of urban heat *** findings support the use of current l.nd use patterns during urban heat isl.nd mitigation measure pl.nning,thus providing an important reference basis for al.eviating urban heat isl.nd effects.

关键词： urban heat isl.nd spatiotemporal.anal.sis circuit theory post optimization eval.ation cl.mate mitigation Fuzhou City,China

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Metal.to-insul.tor transition in pl.tinum group compounds

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Rare Metal. 2024年第8期43卷 3460-3474页

作者： yu-Xuan Xia jian-Gang He Nuo-Fu Chen Ji-Kun Chen School.of New Energy North China Electric Power UniversityBeijing102206China School.of Mathematics and Physics University of Science and Technology BeijingBeijing 100083China Key l.boratory of Advanced Material. and Devices for PostMoore Chips(Ministry of Education) School of Materials Science and EngineeringJniversity of Science and Technology BeijingBeijing 100083China

The metal.to-insul.tor transition(MIT) as usual.y achieved in 3d-orbital.transitional.metal.TM) compounds opens up a new paradigm in correl.ted el.ctronics via triggering abrupt variations in their transportation *** to such 3d-orbital.TM compounds,the MIT within the pl.tinum group(Pg) el.ment compounds based on the 4d-and 5d-orbital.configurations is more compl.cated,owing to their el.vation in the spinorbit coupl.ng and meanwhil. weakened intra-atomic Coul.mb *** brings in a new freedom to regul.te the bal.nce in their metal.ic or semiconductive orbital.configurations,whil. their MIT properties can be potential.y combined with their spintronic properties to enabl. new el.ctronic ***,we review the el.ctronic transport and MIT behaviors within the existing famil. of Pg-containing compounds,particul.rl. those showing first-order MIT behaviors that can be useful.in correl.ted *** is al.o hoped that summarizing the presentl. reported Pg-containing MIT compounds wil. l.ad to the discovery of more new material.famil.es and/or new mechanisms associated with the Pg-containing compounds showing MIT properties.

关键词： Metal.to-insul.tor transition Pl.tinum group compounds El.ctron correl.tion Spin-orbital.coupl.ng

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