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Combining ability and gene action studies for yield and fibre traits in Gossypium arboreum using Griffings numerical and Haymans graphical approach
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作者 SUKRUTHA Bhimireddy RAJESWARI Sivakami +3 位作者 PREMALATHA N. BOOPATHI Narayana Manikanda THIRUKUMARAN K. MANIVANNAN A. 《Journal of Cotton Research》 CAS 2023年第3期141-156,共16页
Background For the purpose of utilising hybrid vigour to produce possible hybrids with a suitable level of stability,the knowledge of gene activity and combining ability is a crucial prerequisite before choosing desir... Background For the purpose of utilising hybrid vigour to produce possible hybrids with a suitable level of stability,the knowledge of gene activity and combining ability is a crucial prerequisite before choosing desirable parents.The present study was carried out with six parents crossed in full diallel fashion and generated 30 F1 hybrids.These hybrids were evaluated in two replications in Randomized Block Design at Department of Cotton,TNAU for combining ability and gene action.Diallel analysis was carried out according to Griffing’s method-I(parents + F_(1) + reciprocals) and model-I and Hayman’s graphical approach by using INDOSTAT software.Results Analysis of variance for combining ability indicated that mean square values of GCA,SCA and reciprocals were highly significant for all the traits except for the uniformity index.RG763 and K12 showed highly positively significant GCA effects for most of the yield traits while PA838 and K12 for fibre quality traits,so they were found as best general combiners.PAIG379 × K12 and PDB29 × K12 for yield traits,and PDB29 × PA838,RG763 × PA838,and CNA1007 × RG763 cross combinations for fibre quality traits could be recommended for future breeding programms.Conclusion The results of both Griffing’s and Hayman’s approaches showed that non-additive gene action predominates as SCA variance was bigger than GCA variance,so heterosis breeding is thought to be a more fruitful option for enhancing GCA of many traits. 展开更多
关键词 Gene action Combining ability Diallel analysis Hayman’s approach Griffing’s approach Vr-Wr graph Desi cotton
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Determination of the Henry’s Law Constant of Hexane in High-Viscosity Polymer Systems
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作者 Qi Jibing Li Yuliang +4 位作者 Liu Youzhi Yang Tong Liu Yandong Yuan Zhiguo Yi Jianjun 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS CSCD 2023年第1期34-43,共10页
The Henry’s law constant of volatiles in polymer systems is a crucial parameter reflecting the gas-liquid equilibrium,which is very important for devolatilization.In this research,polyolefin elastomer(POE)-cyclohexan... The Henry’s law constant of volatiles in polymer systems is a crucial parameter reflecting the gas-liquid equilibrium,which is very important for devolatilization.In this research,polyolefin elastomer(POE)-cyclohexane and polydimethylsiloxane(PDMS)-hexane systems were studied,and the Henry’s law constant was obtained by measuring the gas phase equilibrium partial pressure when polymer solutions containing different mass fractions of volatiles reached a saturated state.The effects of temperature,type of volatiles,and polymer viscosity on the gas phase equilibrium partial pressure and Henry’s law constant of the volatiles were investigated.The results indicate that,with the increase of temperature and polymer viscosity,the gas phase equilibrium partial pressure and Henry’s law constant of volatiles increase.As temperature increases,the solubility of gas in liquid decreases.The relationship between the Henry’s law constant and temperature is consistent with the Arrhenius law.In the PDMS-hexane system,the gas phase equilibrium partial pressure and Henry’s law constant of n-hexane are higher than those of cyclohexane.The obtained Henry’s law constants can be used as a reference for perfecting the devolatilization process and improving the devolatilization effect. 展开更多
关键词 henrys law constant gas-liquid equilibrium method HEXANE polyolefin elastomer(POE) polydimethylsiloxane(PDMs)
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掌侧微创入路与Henry入路治疗桡骨远端骨折效果的Meta分析
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作者 沈杰铤 庞飞 《临床医学研究与实践》 2024年第10期10-15,共6页
目的探讨掌侧微创入路与Henry入路治疗桡骨远端骨折(DRF)的临床效果。方法检索PubMed、Embase、Cochrane Library、中国知网、万方和维普数据库,收集建库至2022月10月有关掌侧微创入路与Henry入路锁定钢板固定治疗DRF的随机对照试验,根... 目的探讨掌侧微创入路与Henry入路治疗桡骨远端骨折(DRF)的临床效果。方法检索PubMed、Embase、Cochrane Library、中国知网、万方和维普数据库,收集建库至2022月10月有关掌侧微创入路与Henry入路锁定钢板固定治疗DRF的随机对照试验,根据纳排标准进行筛选以及数据提取,使用RevMan5.4软件进行数据分析。结果共纳入12篇文献。综合分析提示,试验组的腕关节掌屈角度、背伸角度、旋前角度优于对照组,上肢功能评分(DASH)、视觉模拟评分法(VAS)评分及并发症总发生率低于对照组(P<0.05)。结论相较于Henry入路,掌侧微创入路在DRF患者中的应用效果更佳,是可行的手术方式。 展开更多
关键词 掌侧微创入路 henry入路 桡骨远端骨折
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Neomicrocoleus gen.nov.(Microcoleaceae,Oscillatoriales),a novel cyanobacterial genus from benthic mats in a water channel
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作者 Ruozhen GENG Zhongshi HE +6 位作者 Kaihui GAO Peng XIAO He ZHANG Si CHEN Hua LI Gongliang YU Renhui LI 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2024年第1期263-276,共14页
A new filamentous cyanobacterial strain(CHAB 4127)was successfully isolated from the algal mat during the field investigation of the open channel from Luanhe River to Tianjin,China.The polyphasic approach combining mo... A new filamentous cyanobacterial strain(CHAB 4127)was successfully isolated from the algal mat during the field investigation of the open channel from Luanhe River to Tianjin,China.The polyphasic approach combining morphological,ultrastructural,ecological,and molecular features was used to characterize this studied strain.The strain is morphologically similar to the Microcoleus-like cyanobacterial taxa under light microscopy,and the radial arrangement of thylakoids is also consistent with that of Microcoleus-like groups.The phylogenetic position of CHAB 4127 based on 16S rRNA gene sequences,is shown to be clearly clustered into an independent clade with the newly established genus Microcoleusiopsis.The maximum similarity of 16S r RNA gene of the studied strain with other existing related cyanobacterial taxa is 93.97%,and the ITS secondary structures is also obviously different from other members of Microcoleaceae.Based on all the above evidence,we proposed the establishment of this novel cyanobacterial genus as Neomicrocoleus,with its type species,Neomicrocoleus tianjinensis. 展开更多
关键词 Neomicrocoleus tianjinensis morphology 16s rRNA TAXONOMY polyphasic approach
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Henry Vandyke Carter (1831-1897): the forgotten co-author of Gray’s Anatomy
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作者 Rafael Romero-Reverón 《History & Philosophy of Medicine》 2023年第4期10-12,共3页
Henry Vandyke Carter(1831–1897),physician and illustrator from Saint George’s Hospital in London,England.He worked with Henry Williamson Gray(1827–1861)on anatomical dissections and Carter’s illustrations contribu... Henry Vandyke Carter(1831–1897),physician and illustrator from Saint George’s Hospital in London,England.He worked with Henry Williamson Gray(1827–1861)on anatomical dissections and Carter’s illustrations contributed significantly to the success of the Treaty of Anatomy,Descriptive and Surgical.Henry Carter never achieved any credit or royalty for his work.This book is currently regarded as one of the most influential human anatomy textbooks.The paper aims to present a brief review of Henry Carter’s contributions to the medical field. 展开更多
关键词 ANATOMY ENGLAND henry Vandyke Carter Gray’s Anatomy medical education PROFEssOR
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GDI and GSI: China’s New Propositions for Global Governance
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作者 Ouyang Xiangying 《China Economist》 2024年第5期107-116,共10页
In the post-pandemic era,the global economic and security landscapes are fraught with complexities and uncertainties.Among them,four risk flashpoints merit attention:Certain countries are raising interest rates to sub... In the post-pandemic era,the global economic and security landscapes are fraught with complexities and uncertainties.Among them,four risk flashpoints merit attention:Certain countries are raising interest rates to subdue inflation,despite their already high levels of debt;the bulk commodities market is experiencing volatility,leading to global turbulence and change;trade protectionism is at the forefront of major-power rivalry in political and economic spheres;and regional security crises are compounding international tensions.Behind those flashpoints are contradictions that obstruct world peace and progress,including development imbalances,governance gaps,and structural tensions in global security.In the face of uncertainties,it is crucial for China to seize strategic opportunities and transform crises into favorable situations.China has launched the Global Development Initiative(GDI)and the Global Security Initiative(GSI)to contribute to global prosperity and security.The two initiatives demonstrate China’s commitment to addressing global deficits in peace,development,security,and governance. 展开更多
关键词 Global Development Initiative(GDI) Global security Initiative(GsI) China’s approach to global governance Ukraine crisis China-Russia relationship
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Henry入路三角肌双间隙治疗AOC型桡骨远端骨折的临床研究
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作者 王建军 单敏芳 王三华 《中国医学创新》 CAS 2024年第12期66-70,共5页
目的:探讨Henry入路三角肌双间隙治疗AOC型桡骨远端骨折的临床效果。方法:选取2021年6月—2023年4月高安市人民医院收治的AOC型桡骨远端骨折患者102例作为研究对象,按随机数字表法分为两组,各51例,对照组采用传统入路方式治疗,观察组采... 目的:探讨Henry入路三角肌双间隙治疗AOC型桡骨远端骨折的临床效果。方法:选取2021年6月—2023年4月高安市人民医院收治的AOC型桡骨远端骨折患者102例作为研究对象,按随机数字表法分为两组,各51例,对照组采用传统入路方式治疗,观察组采用Henry入路三角肌双间隙治疗。观察两组手术相关指标、疼痛程度[视觉模拟评分法(VAS)]、手部功能恢复情况[上肢功能障碍评定量表(DASH)]、术后并发症发生情况。结果:观察组手术时间、骨折愈合时间及术后住院时间均短于对照组(P<0.05);观察组术中出血量少于对照组(P<0.05)。两组术后1 d、1个月、3个月的VAS评分与术前相比,差异均有统计学意义(P<0.05);观察组术后1 d、1个月、3个月的VAS评分均低于对照组(P<0.05)。术后3个月,观察组DASH评分低于对照组(P<0.05)。观察组并发症发生率为3.92%,对照组为15.69%,差异有统计学意义(P<0.05)。结论:Henry入路三角肌双间隙治疗AOC型桡骨远端骨折可减少术中出血量,缩短手术时间及术后住院时间,有效促进骨折愈合与手部功能恢复,减轻疼痛且并发症少。 展开更多
关键词 henry入路 三角肌双间隙 AOC型桡骨远端骨折
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改良Henry入路保留旋前方肌掌侧锁定钢板内固定治疗桡骨远端骨折疗效分析
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作者 黎成成 殷子敬 +1 位作者 张云航 区钰强 《中国烧伤创疡杂志》 2024年第3期214-217,236,共5页
目的探讨改良Henry入路保留旋前方肌掌侧锁定钢板内固定治疗桡骨远端骨折的临床疗效。方法选取2018年1月至2022年1月肇庆市中医院收治的84例桡骨远端骨折患者作为研究对象,按照不同手术方法将其分为观察组(42例)和对照组(42例),观察组... 目的探讨改良Henry入路保留旋前方肌掌侧锁定钢板内固定治疗桡骨远端骨折的临床疗效。方法选取2018年1月至2022年1月肇庆市中医院收治的84例桡骨远端骨折患者作为研究对象,按照不同手术方法将其分为观察组(42例)和对照组(42例),观察组患者采用改良Henry入路保留旋前方肌掌侧锁定钢板内固定治疗,对照组患者采用改良Henry入路离断旋前方肌掌侧锁定钢板内固定治疗,对比观察两组患者上肢功能障碍评定量表(Quick-DASH)评分、腕关节功能患者自行评估量表(PRWE)评分、Mayo腕关节功能评分(简称Mayo评分)、视觉模拟评分法(VAS)评分及不良事件发生情况。结果术后1、6个月,观察组患者Quick-DASH、PRWE及VAS评分均明显低于对照组,Mayo评分明显高于对照组(术后1个月:t=3293、4123、2902、2366,P=0002、P<0001、P=0005、P=0020;术后6个月:t=4877、4136、2139、2695,P<0001、P<0001、P=0035、P=0009);观察组患者术后不良事件发生率为714%,明显低于对照组患者的术后不良事件发生率2381%(χ^(2)=4459,P=0035)。结论桡骨远端骨折采用改良Henry入路保留旋前方肌掌侧锁定钢板内固定治疗更能明显减轻患者疼痛,促进上肢功能及腕关节功能恢复,降低术后不良事件发生风险。 展开更多
关键词 桡骨远端骨折 henry入路 掌侧锁定钢板 保留旋前方肌 疼痛 上肢功能 腕关节功能
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Mimics软件辅助下的掌侧Henry入路治疗C型桡骨远端骨折 被引量:4
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作者 罗鹏刚 吴增志 +3 位作者 林伟文 夏雄超 凌华军 钟思龙 《南昌大学学报(医学版)》 CAS 2018年第2期73-76,107,共5页
目的研究在Mimics软件辅助下不切断旋前方肌的掌侧Henry入路治疗C型桡骨远端骨折的疗效及可行性。方法回顾性分析2014年3月至2016年3月以来收治的32例桡骨远端骨折患者,男13例,女19例;年龄23~86岁,平均43岁。手术时机为伤后0~7d,平均随... 目的研究在Mimics软件辅助下不切断旋前方肌的掌侧Henry入路治疗C型桡骨远端骨折的疗效及可行性。方法回顾性分析2014年3月至2016年3月以来收治的32例桡骨远端骨折患者,男13例,女19例;年龄23~86岁,平均43岁。手术时机为伤后0~7d,平均随访时间16.5个月。按照AO/ASIF分类:C1型12例,C2型5例,C3型2例。按随机数字表法分成2组:不切断旋前方肌组(观察组)16例,术前将CT数据导入mimics软件模拟手术复位,Henry入路暴露,于旋前方肌下插入钢板进行骨折复位固定。切断旋前方肌组(对照组)16例,经Henry入路暴露后切断旋前方肌暴露骨折端行骨折复位固定。术后2周、4周、3个月分别对患侧腕关节VAS评分、上肢DASH评分及前臂旋转、腕屈伸及内收、外展等功能进行评定、比较差异。结果术后1例对照组患者出现大鱼际肌区麻木,未出现感染、肌腱断裂等并发症。术后2周、4周VAS评分观察组明显优于对照组(P<0.05),术后3个月时两者比较差异无统计学意义(P=0.127)。上肢DASH评分及握力术后2周、4周观察组明显优于对照组(P<0.05),术后3个月两者比较差异无统计学意义(P>0.05)。腕关节活动度术后2周、4周优于对照组(P<0.05),术后3个月差异无统计学意义(P>0.05)。前臂旋转功能及握力较其他指标恢复更早。结论在mimics软件辅助下不切断旋前方肌治疗C型桡骨远端骨折方法可行,疗效确切,减少术中操作时间及不必要的损害,术后并发症少,保留了旋前方肌的功能,为术后腕关节早期功能锻炼提供源动力。 展开更多
关键词 MIMICs软件 桡骨远端骨折 旋前方肌 henry入路
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改良Henry入路保留旋前方肌掌侧钢板内固定对老年桡骨远端骨折患者DASH评分的影响 被引量:2
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作者 冯楠 《系统医学》 2022年第10期117-120,共4页
目的 探究老年桡骨远端骨折患者应用改良Henry入路保留旋前方肌掌侧钢板内固定的应用效果。方法选取该院2020年8月—2021年7月期间收治的96例老年桡骨远端骨折患者为研究对象,将其随机分为两组,各48例。参照组患者接受常规Henry入路钢... 目的 探究老年桡骨远端骨折患者应用改良Henry入路保留旋前方肌掌侧钢板内固定的应用效果。方法选取该院2020年8月—2021年7月期间收治的96例老年桡骨远端骨折患者为研究对象,将其随机分为两组,各48例。参照组患者接受常规Henry入路钢板内固定术治疗,研究组患者接受改良Henry入路保留旋前方肌掌侧钢板内固定术治疗,对比两组患者围术期相关指标、预后情况、疼痛评分以及DASH评分。结果 研究组患者手术时间以及骨折暴露时间(58.40±6.89)、(19.75±3.35)min相较于参照组患者(73.16±7.15)、(46.30±6.54)min更短,且术中出血量(14.37±2.35)mL相较于参照组(25.36±3.81)mL更少,差异有统计学意义(t=10.299、25.033、17.009,P<0.001);治疗后6周,研究组患者腕关节屈伸范围、前臂旋转范围以及握力均显著优于参照组患者,VAS、DASH评分相较于参照组患者更低,差异有统计学意义(P<0.05)。结论 改良Henry入路保留旋前方肌掌侧钢板内固定术应用于老年桡骨远端骨折患者中,能取得较为显著的效果。患者治疗周期更短且术中出血量明显下降,经治疗后患者的腕关节、前臂活动情况更佳,且疼痛以及上肢功能均得到显著改善,恢复周期也更短,值得将该术式进行临床推广应用。 展开更多
关键词 改良henry入路 掌侧钢板内固定 桡骨远端骨折 DAsH
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The Comparison and Contrast of Skopostheorie and Baker's Equivalence Translation Approach
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作者 李永秀 《海外英语》 2011年第7X期176-178,共3页
Equivalence can be said to be the central issue in translation although its different approaches have caused heated controversy.However,as early as the 1970s,the Skopostheorie emerged in Germany,and it seemed to chall... Equivalence can be said to be the central issue in translation although its different approaches have caused heated controversy.However,as early as the 1970s,the Skopostheorie emerged in Germany,and it seemed to challenge the equivalence theories.Although Nida and some linguistics raised some negative problems of this theory,it still rapidly became famous around the world,This article will mainly compare and analyse Skopostheorie and Baker's translation equivalence approach.First,it will give a simple overview of these two approaches.Second,it will discuss the relevant strengths and weaknesses of these two approaches in relation to their usage.Finally,it will discuss combining these two approaches in the same translation. 展开更多
关键词 COMPARIsON and CONTRAsT skopostheorie Baker’s EQUIVALENCE TRANsLATION approach
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经皮微创、Wiltse间隙微创入路与传统切开后入路治疗老年胸腰椎骨折临床疗效
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作者 李佳 朱家星 +4 位作者 王磊 车晓明 张欣 单中书 刘伟 《广东医学》 2023年第12期1523-1529,共7页
目的探讨经皮微创、Wiltse间隙微创及传统切开后入路联合伤椎椎弓根内固定术治疗老年胸腰椎骨折的临床效果。方法回顾性分析2018年3月至2021年12月诊断为胸腰椎骨折的老年患者98例的临床资料。根据手术入路的不同,将患者分为经皮组、Wil... 目的探讨经皮微创、Wiltse间隙微创及传统切开后入路联合伤椎椎弓根内固定术治疗老年胸腰椎骨折的临床效果。方法回顾性分析2018年3月至2021年12月诊断为胸腰椎骨折的老年患者98例的临床资料。根据手术入路的不同,将患者分为经皮组、Wiltse组和切开组,经皮组31例,其中男14例,女17例。平均年龄(69.3±6.6)岁;Wiltse组33例,男12例,女21例;平均年龄(68.7±7.1)岁;切开组34例,其中男16例,女18例,平均年龄(67.7±6.9)岁。比较3组患者的手术时间、术中出血量、术后引流量、透视次数、住院时间、Cobb′s角、伤椎椎体前缘高度、视觉模拟评分(VAS)、Oswestry功能障碍指数(ODI)及相关并发症。结果3组术后伤椎前缘高度和Cobb′s角较术前均有明显改善(P<0.05),术后3组组间比较差异无统计学意义(P>0.05)。3组患者围手术期各项观察指标对比,经皮组的手术时间和透视次数比其他两组明显较多,差异有统计学意义(P<0.05);切开组术中出血量、住院时间与其他两组比较差异有统计学意义(P<0.05);3组间的术后引流量相互比较差异均有统计学意义(P<0.05)。3组患者术后VAS评分及ODI值较术前均降低(P<0.05),且经皮组及Wiltse组患者术后的VAS评分和ODI值均优于切开组患者(P<0.05)。切开组术后出现手术及基础疾病相关并发症较多,与其他两组比较差异有统计学意义(P<0.05)。结论治疗老年胸腰椎骨折,3种方法均可取得较好的临床效果,但经皮及Wiltse间隙微创入路相较于传统切开在软组织保护和术后功能康复方面更具优势,临床应用还需根据患者具体情况,采用合适的治疗方式才能够取得更好的疗效。 展开更多
关键词 经皮微创 Wiltse入路 传统切开入路 老年 胸腰椎骨折 伤椎 植骨
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改良Henry入路切开复位钢板内固定术治疗桡骨远端骨折的疗效研究
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作者 沈敏 胡文林 +2 位作者 周沈佳 钟建明 丁丽英 《浙江创伤外科》 2023年第7期1234-1236,共3页
目的探讨切开复位钢板内固定术中使用改良Henry入路治疗桡骨远端骨折的临床疗效。方法选择2020年1月至2021年12月在湖州市第一人民医院行切开复位钢板内固定术的桡骨远端骨折48例患者为研究对象,依据随机数表法,分为对照组与研究组,每... 目的探讨切开复位钢板内固定术中使用改良Henry入路治疗桡骨远端骨折的临床疗效。方法选择2020年1月至2021年12月在湖州市第一人民医院行切开复位钢板内固定术的桡骨远端骨折48例患者为研究对象,依据随机数表法,分为对照组与研究组,每组24例。对照组选择直接掌侧入路,研究组选择改良Henry入路。术后6个月,比较两组腕关节活动度、上肢功能损伤(DASH)评分及并发症发生率。结果术前,两组腕关节活动度、DASH评分相比,差异无统计学意义(P>0.05);术后6个月,研究组背伸、掌屈、旋后、旋前活动度明显高于对照组,DASH评分明显低于对照组,差异有统计学意义(P<0.05);研究组并发症发生率明显低于对照组,差异有统计学意义(P<0.05)。结论切开复位钢板内固定术中使用改良Henry入路治疗桡骨远端骨折可明显改善患者腕关节活动度及上肢功能,且并发症发生率较低,值得推广应用。 展开更多
关键词 桡骨远端骨折 改良henry入路 腕关节 上肢功能 并发症
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Comparison of six statistical approaches in the selection of appropriate fish growth models 被引量:6
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作者 朱立新 李丽芳 梁振林 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2009年第3期457-467,共11页
The performance of six statistical approaches,which can be used for selection of the best model to describe the growth of individual fish,was analyzed using simulated and real length-at-age data.The six approaches inc... The performance of six statistical approaches,which can be used for selection of the best model to describe the growth of individual fish,was analyzed using simulated and real length-at-age data.The six approaches include coefficient of determination(R2),adjusted coefficient of determination(adj.-R2),root mean squared error(RMSE),Akaike's information criterion(AIC),bias correction of AIC(AICc) and Bayesian information criterion(BIC).The simulation data were generated by five growth models with different numbers of parameters.Four sets of real data were taken from the literature.The parameters in each of the five growth models were estimated using the maximum likelihood method under the assumption of the additive error structure for the data.The best supported model by the data was identified using each of the six approaches.The results show that R2 and RMSE have the same properties and perform worst.The sample size has an effect on the performance of adj.-R2,AIC,AICc and BIC.Adj.-R2 does better in small samples than in large samples.AIC is not suitable to use in small samples and tends to select more complex model when the sample size becomes large.AICc and BIC have best performance in small and large sample cases,respectively.Use of AICc or BIC is recommended for selection of fish growth model according to the size of the length-at-age data. 展开更多
关键词 growth model model selection statistical approach Akalke's information criterion Bayesian information criterion
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Comparison of the modified Wiltse’s approach with spinal minimally invasive system and traditional approach for the therapy of thoracolumbar fracture 被引量:7
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作者 Jie Chang Jiang Cao +3 位作者 Ziyan Huang Boyao Wang Tao Sui Xiaojian Cao 《The Journal of Biomedical Research》 CAS CSCD 2020年第5期379-386,共8页
Thoracolumbar fractures are usually treated by open posterior pedicle screw fixation.However,this procedure involves massive paraspinal muscle stripping,inflicting surgical trauma,and prolonged X-ray exposure.In this ... Thoracolumbar fractures are usually treated by open posterior pedicle screw fixation.However,this procedure involves massive paraspinal muscle stripping,inflicting surgical trauma,and prolonged X-ray exposure.In this study,we observed 127 patients with single-segment injury thoracolumbar fractures.Thirty-six patients were treated by the modified Wiltse’s paraspinal approach with minimally invasive channel system,while 91 patients were treated via traditional posterior approach.Operation time,intraoperative blood loss,intraoperative fluoroscopy frequency,screw placement accuracy,visual analogue scale score,and Cobb’s angle of two groups were compared.The X-ray exposure times were notably reduced(4.2±1.6) in the new approach group(P<0.05).The pedicle screw placement accuracy and Cobb’s angle after surgery were similar in the two groups.We conclude that modified Wiltse’s paraspinal approach w ith spinal minimally invasive channel system surgery can significantly reduce the X-ray exposure times and is an alternative therapy for the thoracolumbar fracture. 展开更多
关键词 thoracolumbar fracture Wiltse’s paraspinal approach spinal minimally invasive channel system
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A molecular mechanics approach for analyzing tensile nonlinear deformation behavior of single-walled carbon nanotubes 被引量:3
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作者 Yu Wang Daining Fang +1 位作者 Ai Kah Soh Bin Liu 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2007年第6期663-671,共9页
In this paper, by capturing the atomic information and reflecting the behaviour governed by the nonlinear potential function, an analytical molecular mechanics approach is proposed. A constitutive relation for single-... In this paper, by capturing the atomic information and reflecting the behaviour governed by the nonlinear potential function, an analytical molecular mechanics approach is proposed. A constitutive relation for single-walled carbon nanotubes (SWCNT's) is established to describe the nonlinear stress-strain curve of SWCNT's and to predict both the elastic properties and breaking strain of SWCNT's during tensile deformation. An analysis based on the virtual internal bond (VIB) model proposed by P. Zhang et al. is also presented for comparison. The results indicate that the proposed molecular mechanics approach is indeed an acceptable analytical method for analyzing the mechanical behavior of SWCNT's. 展开更多
关键词 Molecular mechanics approach Carbon nanotube Constitutive relation Young's modulus
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Henry's Law constant for phosphine in seawater:determination and assessment of influencing factors 被引量:2
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作者 付梅 俞志明 +1 位作者 卢光远 宋秀贤 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2013年第4期860-866,共7页
The Henry's Law constant (k) for phosphine in seawater was determined by multiple phase equilibration combined with headspace gas chromatography. The effects of pH, temperature, and salinity on k were studied. The ... The Henry's Law constant (k) for phosphine in seawater was determined by multiple phase equilibration combined with headspace gas chromatography. The effects of pH, temperature, and salinity on k were studied. The k value for phosphine in natural seawater was 6.415 at room temperature (approximately 23℃). This value increases with increases in temperature and salinity, but no obvious change was observed at different pH levels. At the same temperature, there was no significant difference between the k for phosphine in natural seawater and that in artificial seawater. This implies that temperature and salinity are major determining factors for k in marine environment. Double linear regression with Henry's Law constants for phosphine as a function of temperature and salinity confirmed our observations. These results provide a basis for the measurement of trace phosphine concentrations in seawater, and will be helpful for future research on the status of phosphine in the oceanic biogeochemical cycle of phosphorus. 展开更多
关键词 PHOsPHINE henrys Law constant seawater influencing factors multiple phase equilibration
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Investigation of ductile iron casting process parameters using Taguchi approach and response surface methodology 被引量:3
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作者 A. Johnson Santhosh A. R. Lakshmanan 《China Foundry》 SCIE 2016年第5期352-360,共9页
To find the optimized levels of various casting parameters in the ductile iron casting, various casting defects and the rejection rate were observed from a medium scale foundry. The controlled values of different cast... To find the optimized levels of various casting parameters in the ductile iron casting, various casting defects and the rejection rate were observed from a medium scale foundry. The controlled values of different casting parameters such as pouring temperature, inoculation, carbon equivalent, moisture content, green compression strength, permeability and mould hardness were selected. Three different melts of metal with 0.4wt.%, 0.6wt.%, and 0.8wt.% inoculation (Fe-Si-Mg alloy and post inoculant) were produced using a 1-ton capacity coreless medium frequency induction furnace. L-27 orthogonal array with 3-level settings were chosen for the analysis. Responses for each run were observed. The signal-to-noise (S/N) ratio for each run was calculated using the Taguchi approach, and the optimized levels of different casting parameters were identified based on the SIN ratio. The analysis of variance for the casting acceptance percentage concludes that inoculation is the most significant factor affecting the castings' quality with a contribution percentage of 44%; an increase in inoculation results in a significant improvement in acceptance percentage of ductile iron castings. The experiment results showed that with the optimized parameters, the rejection rate was reduced from 16.98% to 6.07%. 展开更多
关键词 optimized levels casting parameters s/N ratio Taguchi approach ANOVA ‘F’-Test
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Reinvestigation of the Henry's law constant for hydrogen peroxide with temperature and acidity variation 被引量:1
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作者 Daoming Huang,Zhongming Chen The State Key Laboratory of Environmental Simulation and Pollution Control,College of Environmental Sciences and Engineering,Peking University,Beijing 100871,China. 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2010年第4期570-574,共5页
Hydrogen peroxide is not only an important oxidant in itself; it also serves as both sink and temporary reservoir for other important oxidants including HOx (OH and HO2) radicals and O3 in the atmosphere. Its partit... Hydrogen peroxide is not only an important oxidant in itself; it also serves as both sink and temporary reservoir for other important oxidants including HOx (OH and HO2) radicals and O3 in the atmosphere. Its partitioning between gas and aqueous phases in the atmosphere, usually described by its Henry's law constant (KH), significantly influences its role in atmospheric processes. Large discrepancies between the KH values reported in previous work, however, have created uncertainty for atmospheric modelers. Based on our newly developed online instrumentation, we have re-determined the temperature and acidity dependence of KH for hydrogen peroxide at an air pressure of (0.960 ± 0.013) atm (1 atm = 1.01325 × 10^5 Pa). The results indicated that the temperature dependence of KH for hydrogen peroxide fits to the Van't Hoff equation form, expressed as lnKH = a/T - b, and a = -△H/R, where KH is in M/atm (M is mol/L), T is in degrees Kelvin, R is the ideal gas constant, and AH is the standard heat of solution. For acidity dependence, results demonstrated that the KH value of hydrogen peroxide appeared to have no obvious dependence on decreasing pH level (from pH 7 to pH 1). Combining the dependence of both temperature and acidity, the obtained a and b were 7024 ± 138 and 11.97 ± 0.48, respectively, AH was (58.40 ± 1.15) kJ/(K.mol), and the uncertainties represent σ. Our determined KH values for hydrogen peroxide will therefore be of great use in atmospheric models. 展开更多
关键词 hydrogen peroxide henrys law constant ATMOsPHERE ACIDITY
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Hyperbaric oxygen therapy as a new treatment approach for Alzheimer's disease 被引量:5
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作者 Ronit Shapira Shai Efrati Uri Ashery 《Neural Regeneration Research》 SCIE CAS CSCD 2018年第5期817-818,共2页
Hyperbaric oxygen therapy as a new treatment approach for Alzheimer’s disease(AD):Alongside the increase in life expectancy,the prevalence of age-related disorders,such as neurodegenerative diseases,is on the rise... Hyperbaric oxygen therapy as a new treatment approach for Alzheimer’s disease(AD):Alongside the increase in life expectancy,the prevalence of age-related disorders,such as neurodegenerative diseases,is on the rise.For example,AD,the most common form of dementia in the elderly,accounts for 60–80%of all dementia cases. 展开更多
关键词 Hyperbaric oxygen therapy as a new treatment approach for Alzheimer’s disease AD
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