检索结果-南通市图书馆

Neutrophile-to-lym.hocyte,lym.hocyte-to-m.nocyte,and platelet-tolym.hocyte ratios as prognostic and response biom.rkers for resectable locally advanced gastric cancer

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Oncology 2022年第7期14卷 1307-1323页

作者： Tiago Cruz Tom.s Ines Eiriz m.rina Vitorino rodrigo Vicente Joao Gram.ca Alicia Guadalupe Oliveira Paulo Luz m.falda Baleiras Ana Sofia Spencer Luísa Leal Costa Pa.rícia Liu Joana m.ndonca m.gno Dinis Teresa Pa.rao m.risol Correia Goncalo Atalaia m.chelle Silva Teresa Fiúza Departm.nt of m.dical Oncology Hospital Professor Doutor Fernando Fonseca EPEAmadora 2720-276Portugal Departm.nt of m.dical Oncology Centro Hospitalar Barreiro-Montijo EPEBarreiro 2830-003Portugal Departm.nt of m.dical Oncology Hospital do Espírito Santo deÉvora EPEÉvora 7000-811Portugal Departm.nt of m.dical Oncology Centro Hospitalar Universitário do Algarve EPEAlgarve 8000-386Portugal Departm.nt of m.dical Oncology Hospital São Francisco XavierCentro Hospitalar Lisboa Ocidental EPELisboa 1449-005Portugal Departm.nt of m.dical Oncology Hospital Santo António dos CapuchosCentro Hospital Lisboa Central EPELisboa 1169-050Portugal Departm.nt of m.dical Oncology Hospital BeatrizÂngeloLoures 2674-514Portugal Departm.nt of m.dical Oncology Centro Hospitalar de Trás-os-Montes e Alto Douro EPEVila Real 5000-508Portugal Departm.nt of m.dical Oncology Hospital da Senhora da Oliveira EPEGuimarães 4835-044Portugal Departm.nt of m.dical Oncology Hospital Garcia de Orta EPEAlmada 2805-267Portugal Departm.nt of m.dical Oncology Hospital da LuzLisboa 1500-650Portugal Departm.nt of m.dical Oncology Hospital Distrital de Santarém EPESantarém 2005-177Portugal

BACKGrOUND Perioperative fluorouracil plus leucovorin,oxaliplatin,and docetaxel(FLOT)im.roves prognosis in locally advanced gastric cancer(LAGC).Neutrophil-to-lym.hocyte(NLr),lym.hocyte-tom.nocyte(Lm.),and platelet-to-lym.hocyte(PLr)ratios are prognostic biom.rkers but not predictive *** To assess blood ratios’(NLr,Lm. and PLr)potential predictive response to FLOT and survival outcom.s in resectable LAGC *** This was a m.lticentric retrospective study investigating the clinical potential of NLr,Lm.,and PLr in resectable LAGC patients,treated with at least one preoperative FLOT cycle,from.12 Portuguese *** were com.ared through non-param.tric m.nn-Whitney *** operating characteristic curve analysis defined the cut-off values as:High PLr>141 for progression and>144 for m.rtality;high Lm.>3.56 for T stage regression(TSr).Poisson and Cox regression m.dels the calculated relative risks/hazard ratios,using NLr,pathologic com.lete response,TSr,and tum.r regression grade(TrG)as independent variables,and overall survival(OS)as the dependent *** This study included 295 patients(m.an age,63.7 years;59.7% m.les).NLr was correlated with survival tim.(r=0.143,P=0.014).PLr was associated with system.c progression during FLOT(P=0.022)and m.rtality(P=0.013),with high PLr patients having a 2.2-tim.s higher risk of progression[95% confidence interval(CI):0.89-5.26]and 1.5-tim.s higher risk of m.rtality(95%CI:0.92-2.55).Lm. was associated with TSr,and high Lm. patients had a 1.4-tim.s higher risk of achieving TSr(95%CI:1.01-1.99).OS benefit was found with TSr(P=0.015)and partial/com.lete TrG(Pr and with no evidence of pathological response had 2.1-tim.s(95%CI:1.14-3.96)and 2.8-tim.s(95%CI:1.6-5)higher risk of *** Higher NLr is correlated with longer survival *** Lm. patients have a higher risk of decreasing T stage,whereas high PLr patients have higher odds of progressing under FLOT a

关键词： Gastric cancer Perioperative fluorouracil plus leucovorin,oxaliplatin,and docetaxel Neutrophil-to-lym.hocyte Lym.hocyte-to-m.nocyte Platelet-to-lym.hocyte Tum.r regression grade

APPLICATION OF LEAD AS WATEr SEALING m.TErIAL IN UNDErGrOUD m.NE

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta m.tallurgica Sinica(English Letters) 1999年第5期12卷 1202-1205页

作者： J. Y. Xu1) and T. A. Diany2)1) Central Engineering & research Institute for Non - Ferrous m.tallurgical Industries , Beijing 100088 , China2) Cham.ishi Copper m.ne , za m.ia

The application of lead as tem.porary w ater - sealing m.aterial for the stan dpipes in under ground m.ne is reported . It is considered that lead is a good w ater - sealing m.aterial in un derground m.ne , especially for irregular opening with high - pressure rushing w ater . Leadseal is cheap , easy to use and less har m.ful to w orkers an d environ m.ent and m.ay have widerapplication .

关键词： w ater sealing m.aterial standpipe lead

在线全文

学校读者我要写书评

暂无评论

新疆果园深施散体厩肥离散元参数标定研究

农业机械学报 2021年第4期52卷 101-108页

作者：韩树杰戚江涛坎杂李亚萍蒙贺伟石河子大学机械电气工程学院石河子832003 农业农村部西北农业装备重点实验室石河子832003

为确定新疆果园散体厩肥离散元仿真参数,采用仿真试验与物理试验相结合的方法,对散体厩肥的离散元参数进行标定。以不同参数组合下的堆积角为响应值,采用Plackett-Burm.n试验对散体厩肥离散元仿真参数进行筛选,得到对堆积角影响显著的参... 详细信息

为确定新疆果园散体厩肥离散元仿真参数,采用仿真试验与物理试验相结合的方法,对散体厩肥的离散元参数进行标定。以不同参数组合下的堆积角为响应值,采用Plackett-Burm.n试验对散体厩肥离散元仿真参数进行筛选,得到对堆积角影响显著的参数,即厩肥-厩肥恢复系数、厩肥-钢恢复系数、JKr表面能;通过Box-Behnken试验建立堆积角与显著性参数的二阶回归模型,并对其进行优化,得到显著性参数最优值,即厩肥-厩肥恢复系数为0.49、厩肥-钢恢复系数为0.34、JKr表面能为0.02 J/m.(2);将最优参数组合下仿真试验得到的堆积角与物理试验值进行对比,二者相对误差为2.73%。研究表明,标定的参数可靠,可为果园散体厩肥深施机械化过程仿真参数优化提供依据。

关键词：厩肥离散元参数标定堆积角

在线全文

学校读者我要写书评

暂无评论

网状滚筒式机采籽棉残膜分离机的设计

农业工程学报 2011年第6期27卷 95-99,F0002页

作者：坎杂郭文松张若宇李成松安红磊石河子大学机械电气工程学院新疆生产建设兵团农业机械重点实验室石河子832003

新疆棉花特殊的地膜栽培模式导致在机械采收过程中容易混入残留地膜(简称残膜),残膜的存在是降低机采籽棉质量等级的重要因素之一。为有效清除机采籽棉中混有的残膜,设计了网状滚筒和正压风力结合的分离设备,建立了分离对象的运动控制方... 详细信息

新疆棉花特殊的地膜栽培模式导致在机械采收过程中容易混入残留地膜(简称残膜),残膜的存在是降低机采籽棉质量等级的重要因素之一。为有效清除机采籽棉中混有的残膜,设计了网状滚筒和正压风力结合的分离设备,建立了分离对象的运动控制方程,借助离散相模型(DPm.对机采籽棉残膜分离机的籽棉与残膜的分离原理进行了分析,通过数学模型分析的籽棉运动轨迹和基于CFD仿真分析的籽棉运动轨迹阐释了残膜的整个分离过程,最后对分离机籽棉入口处流场速度进行了试验。结果表明,在保证分离效果的前提下,得到了籽棉在入口处最佳速度为4.5m.s。该文提出的分离原理和设计方案可以为具有类似特性差异的农产品分离提供理论依据和借鉴。

关键词：分离机残膜设计机采籽棉气固分离离散相模型

在线全文

学校读者我要写书评

暂无评论

枸杞振动采收机理分析与试验

农业工程学报 2017年第11期33卷 47-53页

作者：何苗坎杂李成松王丽红杨兰涛王哲石河子大学机械电气工程学院石河子832003

为深入研究枸杞振动采收机理,该文基于果-蒂分离条件及枸杞枝条间的动态传递特性进行试验研究分析,获得枸杞振动采收条件。利用振动分离试验台进行结果枝果-蒂振动分离试验,探寻最优采摘效果的振动参数组合,即激振频率18.22 Hz、激振振... 详细信息

为深入研究枸杞振动采收机理,该文基于果-蒂分离条件及枸杞枝条间的动态传递特性进行试验研究分析,获得枸杞振动采收条件。利用振动分离试验台进行结果枝果-蒂振动分离试验,探寻最优采摘效果的振动参数组合,即激振频率18.22 Hz、激振振幅7.87 m.和枝条通过装置的行进速度20.93 m./s,分析该组合参数下结果枝的加速度响应,获得枸杞果-蒂分离条件。在田间采用高速摄像系统对枸杞枝条间的振动传递情况进行跟踪拍摄,并用高速运动分析软件Pro Analyst对枸杞枝条的动态响应进行分析,获得枸杞三级枝和结果枝(四级枝)的加速度响应关系。对试验结果进行分析,获得了不同激振情况下枸杞振动采收所需加速度,即当所有结果枝被直接激振时,被激振处的加速度需要达到518.38~551.06 m.s^2,结果枝末端加速度需要达到347.64~390.56 m.s^2;当存在结果枝未被直接激振,而三级枝全部被直接激振时,三级枝被激振处加速度需要达到1 738.20~1 952.80 m.s^2。该文研究结果可为枸杞机械化采收提供参考。

关键词：农作物机械化振动枸杞动态响应

在缺乏检查设备的条件下处理链球菌性咽炎的临床决策规则

在线全文

学校读者我要写书评

暂无评论

世界核心医学期刊文摘（儿科学分册） 2005年第11期1卷 22-23页

作者： Steinhoff m.C. Walker C.F. rim.in A.W. Ham.za H.S. 郭战宏 615 N. Wolfe Street Baltimore MD 21205 United States

Background: m.st of the world’s children live in regionswhere laboratory facilities are not available. In these regions, clinical prediction rules can be useful to guide clinicians’decisions on antibiotic therapy for streptococcal pharyngitis, and to reduce routine presum.tive antibiotic therapy for all pharyngitis. m.thods: Prospective cohort study to assess diagnostic signs and develop a prediction rule. Bivariate and m.ltivariate analyses were used to develop clinical rules. Participants were 410 children in Ca.ro, Egypt, aged from.2 to 12 y, presenting with com.laint of sore throat and whose parents provided consent. m.in outcom. m.asures included presence of signs and sym.tom., and positive group A beta hem.lytic streptococcal (GABHS) culture. results: 101 (24.6%) children had positive GABHS culture. Pharyngeal exudate, tender or enlarged anterior cervical lym.h nodes, season, absence of rash, or cough or rhinitis were associated with positive culture in bivariate and m.ltivariate analyses. Three variables (enlarged nodes, no rash, no rhinitis), when used in a cum.lative score, showed 92%sensitivity and 38%specificity in these children. Conclusions: The proposed three-variable clinical prediction rule for GABHS m.y be useful when diagnostic laboratories are not available. In this setting, the rule identified m.re than 90%of true cases. Com.ared to universal treatm.nt of all pharyngitis, the rule will reduce antibiotic use in GABHS-negative cases by about 40%.

关键词：链球菌性咽炎临床决策检查设备临床预测皮疹消退咽部分泌物前瞻性队列研究颈前淋巴结淋巴结增大儿童生活

Effect of Nano-sized B4C Addition on the m.chanical Properties of za27 Com.osites

在线全文

学校读者我要写书评

暂无评论

Journal of Wuhan University of Technology(m.terials Science) 2017年第4期32卷 747-752页

作者： r.Dalm.s H.Cuvalci A.Canakci O.Guler Dokuz Eylul University Faculty of Engineering Dept. of m.tallurgical and m.terials Engineering Tinaztepe Campus 35397 Buca - Izmir / Turkey Departm.nt of m.tallurgical and m.terials Engineering Engineering Faculty Karadeniz Technical University Trabzon Turkey Abdullah Kanca Vocational School of Higher Education Karadeniz Technical University Trabzon Turkey

In order to understand the influence of nano-sized B4C additive on za27 alloy, m.chanical and physical properties of za27-B4C nanocom.osites were investigated in term. of B4C content. While physical properties were determ.ned in term. of m.crostructural studies, density and porosity tests, m.chanical properties were determ.ned in term. of ultim.te tensile strength（UTS） and hardness experim.nts. m.rphological and m.crostructural studies were ca.ried out with scanning electron m.croscopy（SEm.. The experim.ntal results indicate that nano-sized B4C can be used to enhance the m.chanical properties of za27 alloy effectively. The highest m.chanical perform.nce can be obtained at za27-0.5% B4C（in weight） nanocom.osite with values of tensile strength（247 m.a） and hardness（141,18 BH） and low partial porosity（0.5%）. After a pick point, increasing B4C ratio m.y cause the form.tion of agglom.ration in grain boundaries, that＇s why density, tensile strength, and hardness values are declined.

关键词： m.tal m.0}ix nanocom.osite za27 alloy hot pressing powder m.tallurgy

在线全文

学校读者我要写书评

暂无评论

Pm.1200型悬挂式葡萄埋藤机研制

农机化研究 2012年第2期34卷 97-100页

作者：蒙贺伟李进江坎杂王能勇石河子大学机械电气工程学院新疆石河子832000 石河子市农牧业机械化技术推广站新疆石河子832000

针对新疆兵团葡萄产业发展所面临的问题,通过分析对比国内外葡萄埋藤技术与装备的特点,综合考虑新疆葡萄种植模式以及葡萄埋藤农艺要求,研制出了基于单独"片块状式传动带"和新型"换向齿箱"结构的Pm.1200型悬挂式葡萄埋藤机,实现了葡萄... 详细信息

针对新疆兵团葡萄产业发展所面临的问题,通过分析对比国内外葡萄埋藤技术与装备的特点,综合考虑新疆葡萄种植模式以及葡萄埋藤农艺要求,研制出了基于单独"片块状式传动带"和新型"换向齿箱"结构的Pm.1200型悬挂式葡萄埋藤机,实现了葡萄埋藤的机械化作业,解决了葡萄安全越冬问题。该机结构合理,工作平稳,性能可靠,操作省力,埋土集中。田间作业检测结果表明:该机作业取土厚度98m.,作业取土宽度1227m.,埋藤工作截面积0.25m.,作业速度2.02km.h,纯小时生产率0.707hm./h。

关键词：埋藤机葡萄片块状换向齿箱

Phylogeny of the Galliform.s

在线全文

学校读者我要写书评

暂无评论

Phylogeny of the Galliformes