期刊文献+
共找到7,605篇文章
< 1 2 250 >
每页显示 20 50 100
Therapeutic effect of manual massage on early postpartum rectus abdominis separation and postpartum depression
1
作者 Yun Chen Xiao-Yan Sun +4 位作者 Cheng Qian Xiao-Xing Zhang Yin-Jian Zhou Hong-Yun Zhang Zhen-Wei Xie 《World Journal of Psychiatry》 SCIE 2024年第5期678-685,共8页
BACKGROUND Rectus abdominis separation(DRA)affects pelvic stability and body image.No studies have explored the effects of manual massage on early postpartum DRA and postpartum depression.AIM To analyze the curative e... BACKGROUND Rectus abdominis separation(DRA)affects pelvic stability and body image.No studies have explored the effects of manual massage on early postpartum DRA and postpartum depression.AIM To analyze the curative effect of massage on early postpartum DRA and its impact on postpartum depression and thus its ability promote the overall psychosomatic rehabilitation of postpartum women.METHODS Data were retrospectively collected on 70 primiparous women with postpartum DRA who underwent rehabilitation at the Postpartum Rehabilitation Center of Huzhou Maternal and Child Health Hospital from October 2022 to September 2023.The patients were divided into the Group S(35 cases,biomimetic electrical stimulation treatment)and Group L(35 cases,biomimetic electrical stimulation combined with manual massage treatment).Baseline data,the edinburgh postpartum depression scale(EPDS)score,and the visual analog scale(VAS)scores for rectus abdominis distance,waist circumference,and lower back pain before and after treatment were compared.RESULTS No significant differences were found in the baseline data,rectus abdominis distance,waist circumference,and VAS and EPDS scores between the two groups before treatment(P>0.05).After treatment,the distance between rectus abdominis and waist circumference in Group L were significantly smaller than those in Group S(P<0.05).Furthermore,lower back pain(VAS score)and the EPDS score in Group L were significantly lower than those in Group S(P<0.05).CONCLUSION Manual massage can significantly reduce early postpartum DRA,waist circumference,and back pain and improve the patient’s mental state and postpartum depression. 展开更多
关键词 manual massage POSTPARTUM Rectus abdominis muscle separation Postpartum depression
下载PDF
Combination of manual lymphatic drainage and Kinesio taping for treating pigmented villonodular synovitis:A case report
2
作者 Yan-Ping Qu Wei Jin +1 位作者 Ben Huang Jie Shen 《World Journal of Clinical Cases》 SCIE 2024年第19期3971-3977,共7页
BACKGROUND Pigmented villonodular synovitis(PVNS)is a benign proliferative disorder that affects the synovial joints,bursae,and tendon sheaths.To date,few studies have reported on the treatment of postoperative pain a... BACKGROUND Pigmented villonodular synovitis(PVNS)is a benign proliferative disorder that affects the synovial joints,bursae,and tendon sheaths.To date,few studies have reported on the treatment of postoperative pain and edema in patients with PVNS.Herein,we present the case of a woman who developed pain and edema in the left lower limb 1 wk after synovectomy and arthroscopic partial meniscectomy and was unable to walk due to limited flexion and extension of the left knee.CASE SUMMARY A 32-year-old woman underwent synovectomy and arthroscopic partial meniscectomy successively and was treated with a combination of manual lymphatic drainage(MLD)and kinesio taping(KT)in our hospital to alleviate postoperative pain and edema.The following parameters were assessed at 2 wk post-treatment and 1 wk post-discharge follow up:suprapatellar circumference,infrapatellar circumference,visual analog scale score,knee range of motion,pittsburgh sleep quality index score,hamilton anxiety rating scale(HAMA)score,and hamilton depression rating scale(HAMD)score.After treatment,the postoperative pain and edema in the patient’s left knee were effectively relieved,resulting in improved sleep quality and remarkably attenuated HAMA and HAMD scores.CONCLUSION Combined MLD and KT may be an effective approach for relieving postoperative pain and edema in patients with PVNS. 展开更多
关键词 Pigmented villonodular synovitis manual lymphatic drainage Kinesio taping Postoperative pain EDEMA Case report
下载PDF
Translation Theory and Techniques in Optometry Literature: A Case Study of the “Optoform 80 Installation and Maintenance Manual”
3
作者 JIANG Fangzhou 《Sino-US English Teaching》 2024年第2期94-97,共4页
Translation of specialized documents in optometry presents unique challenges,requiring a deep understanding of the professional context,terminology,and adherence to specific translation styles.This paper delves into t... Translation of specialized documents in optometry presents unique challenges,requiring a deep understanding of the professional context,terminology,and adherence to specific translation styles.This paper delves into the translation theory and techniques employed in the English-to-Chinese translation of the“Optoform 80 Installation and Maintenance Manual”,serving as a case study.Emphasizing Nida’s theory of functional equivalence,the paper explores the complexities of translating professional optometry literature,focusing on key points and common issues in translating installation and maintenance manuals for optometric devices.Special attention is given to the translation of professional terminology,employing methods such as addition,omission,conversion,and repetition.The translation process aims to meet specific requirements,ensuring accuracy and coherence while aligning with Chinese language conventions.The paper also analyzes translation methods and techniques concerning terminology,prepositions,conjunctions,and handling parallel elements based on practical insights from the Optoform 80 Manual. 展开更多
关键词 optometry translation functional equivalence installation and maintenance manual translation
下载PDF
Double Take Manual Labour Jobs
4
《ChinAfrica》 2024年第6期58-59,共2页
The Double Take column looks at a single topic from an African and Chinese perspective.This month we discuss whether highly educated people like college graduates should be doing manual labour work.Before I delve into... The Double Take column looks at a single topic from an African and Chinese perspective.This month we discuss whether highly educated people like college graduates should be doing manual labour work.Before I delve into the topic,I want to clarify that I do not consider manual labour jobs to be inferior or less demanding compared to white collar jobs.In fact,currently there are many services,such as Japanese-style moving,an all-inclusive moving service during which you don’t need to do anything,or repair services dedicated to single women. 展开更多
关键词 manual DOING ANYTHING
下载PDF
Semi-Automatic Modeling Technique of Torque Converter Flow Passage 被引量:3
5
作者 Shiping Liu Shujuan Zheng 《Modern Mechanical Engineering》 2013年第2期59-68,共10页
The modeling technique of hydrodynamic torque converter flow passage was investigated. The semi-automatic modeling technique of torque converter flow passage was proposed. The flow passage model of each converter whee... The modeling technique of hydrodynamic torque converter flow passage was investigated. The semi-automatic modeling technique of torque converter flow passage was proposed. The flow passage model of each converter wheel is considered as a revolution entity sliced by two curved surfaces. In order to generate the revolution entity, a new approximation method, condition optimum arc approximation, was proposed. The method was used to approximate the meridional streamlines of the inner and outer wall. As a result, the three-dimensional revolution entity can be conveniently generated. In order to create slice surfaces, the central stream surface of flow passage was approximated with a quadric surface. The normal vector of the quadric surface and the thickness/thickness-function of bade were used to calculate the discrete point coordinates of blade surfaces. Via the rotation transformation to the coordinates, the discrete point coordinates of slice surfaces were obtained. A parameterized program code used for the hydrodynamic torque converter design and semi-automatic modeling was developed. Modeling errors were calculated and analyzed. The flow passage model was generated in several minutes with the help of the program code, Auto CAD and Solidworks software. Finally, the model was inputted into Gambit, and the pre-processing task used for the numerical simulation of torque converter flow field was successfully completed. The investigation results show that the semi-automatic modeling not only can ensure the accuracy of modeling, but also librates the research and design workers of torque converter from the time-consuming modeling work, which paves the way for the numerical simulation of the complex flow field of the hydrodynamic torque converter. 展开更多
关键词 HYDRODYNAMIC TORQUE Converter Flow Field Simulation semi-automatic Modeling QUADRIC Surface Condition OPTIMUM APPROXIMATION
下载PDF
Soil Mapping of a Small Watershed in a Brazilian Savanna Biome: A Semi-Automatic Approach
6
作者 Larissa Ane de Sousa Lima Adriana Reatto Henrique Llacer Roig 《Journal of Geographic Information System》 2014年第2期79-87,共9页
The objective of this work is to propose a semi-automatic methodology for the creation of a semidetailed to detailed watershed’s soil map. This methodological proposal is based on the traditional method (field work a... The objective of this work is to propose a semi-automatic methodology for the creation of a semidetailed to detailed watershed’s soil map. This methodological proposal is based on the traditional method (field work and photo interpretation) and on morphometric variables analysis, using data originated from the Digital Elevation Model (DEM) of the Shuttle Radar Topography Mission (SRTM) program. The steps taken through this methodological proposal were the identification of the hydromorphic areas boundaries through interpretation of aerial orthophotographs;the compartmentalization of the relief through color composition techniques using the morphometric variables—slope, altimetry and horizontal curvature;the development of a pedological database based on data gathered in the field;the elaboration of a preliminary soil map based on the compartmentalized relief and on the dataset of the soils sampled in the field;the elaboration and adjustment of the final soil map according to the interpretation of aerial photographs and also the physical and chemical analyses of the soils. This semi-automatic methodology demonstrated improved efficiency in defining the soil units, reducing operation time and subjectivity of the process, thereby contributing to the systematization of soil mapping at watershed level in scale 1:50,000, as well as, promoting better knowledge between the relation of the geomorphic and soil variables in the Brazilian Savanna Cerrado. 展开更多
关键词 semi-automatic MAPPING SRTM MORPHOMETRIC Pedological MAPS
下载PDF
Integration of User-system View for Cyber Crime Analysis: A Semi-automatic Approach
7
作者 K.P. Chow Erica S.L. Ho +5 位作者 Lucas C.K. Hui S.M. Yiu Tom Y.M. Lai R.S. Xu Y Mai Xiaoxi Fan 《中国司法鉴定》 2012年第5期50-58,共9页
There is a rapid rise in cybercrime cases. There does not exist any effective forensic methods to deal with these eybercrime cases. Investigators are required to study the details of a large amount of tedious source i... There is a rapid rise in cybercrime cases. There does not exist any effective forensic methods to deal with these eybercrime cases. Investigators are required to study the details of a large amount of tedious source in order to understand the crime model and dig out the evidence. This requires a lot of effort and may result in human errors. In order to overcome these potential errors that may cause by the investigators, we propose a semi-automatic approach that integrates the user view (based on a high level study of the forensic investigator) and the system view (based on the automatic analysis of the source codes) to assist investigators in refining the scope of the investigation. The approach has been verified using a real cybercrime case and the method has been shown to be effective in assisting the investigators in refining the scope of investigation and understanding the crime model. The semi-automatic approach has improved the efficiency and reliability of the digital forensic analysis of cybercrime cases involving large volume of digital evidence from multiple sources. 展开更多
关键词 CYBERCRIME ANALYSIS forensic methodology semi-automatic APPROACH
下载PDF
A Semi-automatic Method Based on Statistic for Mandarin Semantic Structures Extraction in Specific Domains 被引量:1
8
作者 熊英 朱杰 孙静 《Journal of Shanghai Jiaotong university(Science)》 EI 2004年第4期25-29,共5页
This paper proposed a new method of semi-automatic extraction for semantic structures from unlabelled corpora in specific domains. The approach is statistical in nature. The extracted structures can be used for shallo... This paper proposed a new method of semi-automatic extraction for semantic structures from unlabelled corpora in specific domains. The approach is statistical in nature. The extracted structures can be used for shallow parsing and semantic labeling. By iteratively extracting new words and clustering words, we get an inital semantic lexicon that groups words of the same semantic meaning together as a class. After that, a bootstrapping algorithm is adopted to extract semantic structures. Then the semantic structures are used to extract new 展开更多
关键词 and augment the semantic lexicon. The resultant semantic structures are interpreted by persons and are amenable to hand-editing for refinement. In this experiment the semi-automatically extracted structures S SA provide recall rate of 84.
下载PDF
Systematic Review and Meta-analysis of Randomized Controlled Trials on Manual Therapy for the Treatment of Gastroesophageal Reflux Disease
9
作者 Mengdie Yan Yunzhou Shi +6 位作者 Yanqin Liu Yue Shi Mengzhu Zhang Dongnan Chen Senlin Ye Shiyin Li Yue Feng 《Chinese Medicine and Natural Products》 CAS 2023年第4期143-157,共15页
Objective The objective of our study was to systematically evaluate the clinical efficacy and safety of manual therapy in the treatment of gastroesophageal reflux disease(GERD),providing a reference value for clinical... Objective The objective of our study was to systematically evaluate the clinical efficacy and safety of manual therapy in the treatment of gastroesophageal reflux disease(GERD),providing a reference value for clinical decision-making.Method Studies of randomized controlled trials(RCTs)evaluating the efficacy of manual therapy in patients with GERD were searched through Chinese National Knowledge Infrastructure,Wanfang,ViP China Science and Technology Journal Database,China Biology Medicine Database,PubMed,The Cochrane Library,OviD Medline,and Embase.Two researchers independently reviewed the literature,extracted data,and performed a risk of bias analysis using the Cochrane risk of bias assessment tool,and conducted meta-analysis analysis and publication bias evaluation,the Grading of Recommendations,Assessment,Development and Evaluation(GRADE)tool 26 was used to rate the caliber of the data in this meta-analysis.Results This study included 11 RCTs.Meta-analysis showed that the manual therapy group had a higher total effective rate(odds ratio[OR]=4.63,95%confidence interval[Cl;3.01,7.14],p<0.00001)and better Reflux Disease Questionnaire scores[weighted mean difference(WMD)=-1.59,95%CI[-2.85,-0.33],p=0.01]than the control group.The subgroup analysis showed significant differences in improving the total effective rate in manual therapy versus Western medicine,manual therapy versus Chinese medicine decoction,manual therapy+Western medicine versus Western medicine,and manual therapy+conventional treatment versus conventional treatment groups.Among the 11 trials,5 reported adverse events,and all RCTs had the possibility of publication bias.Subgroup analysis shows that the differences in age could significantly influence heterogeneity;The GRADE analysis revealed that the overall quality of evidence for all outcome indicators was low and did not support our recommendation for the outcome.Conclusion Manual therapy is more effective than medication therapy alone in relieving GERD symptoms.Furthermore,conventional therapy combined with manual therapy was found to be even more effective.Hence,it is crucial to consider these findings when applying manual therapy to GERD patients to enhance treatment outcomes.Future studies must address issues such as study quality,treatment duration,and generalizability. 展开更多
关键词 gastroesophageal reflux disease manual therapy TUINA MASSAGE systematic review META-ANALYSIS
下载PDF
菊钩逍遥散对耳石症手法复位后肝郁型残余头晕患者血浆ET-1、CGRP及NPY水平的影响 被引量:2
10
作者 徐红霞 王庆全 +2 位作者 盛国强 邹广华 汪常伟 《中国中医急症》 2024年第1期119-122,共4页
目的观察菊钩逍遥散治疗耳石症手法复位后肝郁型残余头晕(RD)的疗效,及对血浆中内皮素-1(ET-1)、降钙素基因相关肽(CGRP)及神经肽Y(NPY)水平的影响并探讨其作用机制。方法90例患者随机分成对照组、中药组和联合组3组各30例。对照组给予... 目的观察菊钩逍遥散治疗耳石症手法复位后肝郁型残余头晕(RD)的疗效,及对血浆中内皮素-1(ET-1)、降钙素基因相关肽(CGRP)及神经肽Y(NPY)水平的影响并探讨其作用机制。方法90例患者随机分成对照组、中药组和联合组3组各30例。对照组给予甲磺酸倍他司汀片口服,中药组给予菊钩逍遥散口服,联合组给予菊钩逍遥散和甲磺酸倍他司汀片口服。治疗2周后,观察各组的临床疗效、DHI评分、SAS评分和血浆中ET-1、CGRP及NPY的变化。结果联合组总有效率为93.33%,高于中药组的82.76%和对照组的66.67%(P<0.05)。3组治疗前DHI、SAS评分、ET-1、CGRP和NPY含量比较,差别均不大(均P>0.05)。3组治疗后DHI、SAS评分均较治疗前降低(均P<0.01),且中药组、联合组的DHI、SAS评分均低于对照组(均P<0.01),而中药组和联合组DHI、SAS评分比较差别均不大(P>0.05)。3组治疗后ET-1、NPY含量均较治疗前降低(均P<0.01);中药组、联合组ET-1、NPY含量均低于对照组(均P<0.01),中药组和联合组比较,差异无统计学意义(P>0.05)。3组治疗后CGRP含量均较治疗前升高(均P<0.01),且中药组、联合组CGRP含量均高于对照组,联合组CGRP含量高于中药组(均P<0.01)。治疗过程中对照组出现2例便秘,中药组出现1例胃部不适,联合组出现1例便秘,各组均未见其他明显不良反应。结论菊钩逍遥散治疗RD疗效确切,能够缓解焦虑而改善残余头晕,其作用机制可能与调节血浆中ET-1、CGRP及NPY的水平有关。 展开更多
关键词 耳石症 菊钩逍遥散 手法复位 残余头晕
下载PDF
风力发电机叶片防除冰涂层(二):温升数值计算及防除冰性能 被引量:1
11
作者 胡琴 朱茂林 +2 位作者 舒立春 蒋兴良 徐兴 《电工技术学报》 EI CSCD 北大核心 2024年第1期246-256,共11页
针对电热超疏水涂层覆冰过程中表现出的三类不同冰层形貌,该文建立了电加热融冰数值计算模型,并对仿真计算结果进行了相应的试验验证,验证结果与仿真结果基本一致,该模型能有效模拟融冰过程和温度分布。临界融冰功率的计算结果表明,电... 针对电热超疏水涂层覆冰过程中表现出的三类不同冰层形貌,该文建立了电加热融冰数值计算模型,并对仿真计算结果进行了相应的试验验证,验证结果与仿真结果基本一致,该模型能有效模拟融冰过程和温度分布。临界融冰功率的计算结果表明,电热超疏水涂层融冰所需功率大于非超疏水电热涂层,尤其在乳突状冰层出现后,融冰功率将大幅增加。电热超疏水涂层防冰试验结果表明,在雨凇覆冰环境中,超疏水性能单独作用时,叶片在覆冰前期能延缓覆冰;电热性能与超疏水性能共同作用时,叶片无覆冰形成。电热超疏水涂层用于风力发电机防覆冰具有较好的效果,但用于覆冰后的融冰时将需要更多的能量。 展开更多
关键词 风力发电机 超疏水电热涂层 防除冰 数值模型 人工试验
下载PDF
Capacity Building Needs for Manual and Computer Assisted Teaching of Pattern Drafting for Entrepreneurship in Tertiary Institutions in Nigeria
12
作者 Nwamaka N.Bob-Eze 《Journal of International Education and Practice》 2023年第2期25-36,共12页
This study investigated the capacity building needs for manual and computer assisted teaching of pattern drafting for entrepreneurship in tertiary institutions in Nigeria.The study was conducted and guided by two rese... This study investigated the capacity building needs for manual and computer assisted teaching of pattern drafting for entrepreneurship in tertiary institutions in Nigeria.The study was conducted and guided by two research questions and two hypotheses.This study adopted an ex-post facto research design.The population for the study consisted of 131 Home Economics lecturers from the Universities,Polytechnic,and Colleges of Education in South East Nigeria.The entire population was studied because of its manageable size,hence there was no sampling.The results of this study showed that the Home Economics lecturers are competent in drafting patterns using manual method.Technical skills required for lecturers of Home Economics to advance from manual to computer-assisted teaching of pattern drafting were identified.They include ability to grade patterns,ability to use software packages,and ability to discuss procedures of pattern drafting among others.Based on the findings,it was recommended among others that computer assisted teaching of pattern drafting should be incorporated and applied by Home Economics lecturers to ensure that students acquire technical skills that will enable them to enter into entrepreneurship. 展开更多
关键词 Capacity building needs manual teaching Computer assisted teaching Pattern drafting and entrepreneurship
下载PDF
Exploration of Work Manual Teaching Materials in Higher Vocational Education
13
作者 Fang Zhou Jingjing Sun Qianxiu Zou 《Journal of Contemporary Educational Research》 2023年第4期30-33,共4页
In order to thoroughly implement the national vocational education reform plan,vocational colleges and universities have vigorously promoted the reform of teaching materials.As a new form of teaching material,work man... In order to thoroughly implement the national vocational education reform plan,vocational colleges and universities have vigorously promoted the reform of teaching materials.As a new form of teaching material,work manual teaching materials highlight the characteristics of vocational education,provide the direction of vocational education textbook reform,and act as the foundation of the“three education”reform in vocational colleges.Based on the analysis of the current situation of the construction of teaching materials for higher vocational education,we explore the ideas for the development of work manual teaching materials,aiming to provide some reference for the development of teaching materials for vocational education in the new era. 展开更多
关键词 Vocational education Work manual teaching materials Teaching material reform Online publication:April 25 2023
下载PDF
不同核酸提取方法对HBV-DNA检测性能验证情况分析 被引量:1
14
作者 周文娟 林真 徐建萍 《现代医药卫生》 2024年第4期575-580,共6页
目的评估2种乙型肝炎病毒(HBV)-DNA提取方法及2家检测试剂的性能,有助于选择优化提取试剂和检测试剂。方法2023年4月采用达安全自动核酸提取仪提取法(磁珠法)和手工提取法(一步法),并用达安和圣湘2种HBV-DNA试剂检测,对其进行精密度、... 目的评估2种乙型肝炎病毒(HBV)-DNA提取方法及2家检测试剂的性能,有助于选择优化提取试剂和检测试剂。方法2023年4月采用达安全自动核酸提取仪提取法(磁珠法)和手工提取法(一步法),并用达安和圣湘2种HBV-DNA试剂检测,对其进行精密度、正确度、线性范围、检出限及抗干扰能力等性能进行验证和评价。结果达安全自动核酸提取仪提取达安试剂检测、手工提取达安试剂检测和手工提取圣湘试剂检测在精密度、正确度、线性范围、检出限方面验证结果均达标;达安全自动核酸提取仪提取圣湘试剂检测在低值检测中变异系数大于5%,最低检测限验证不合格;抗干扰能力方面,全自动核酸提取仪提取的2.0 g/dL血红蛋白浓度的样本用达安和圣湘试剂检测结果均不受影响。手工提取甘油三酯浓度达3000 mg/dL的样本用达安和圣湘试剂检测的结果均不受影响。结论不同厂家的提取和检测试剂避免混用,达安和圣湘试剂对HBV-DNA定量检测的结果均符合要求。 展开更多
关键词 乙型肝炎病毒-DNA定量检测 全自动核酸提取仪法 手工提取法 性能验证
下载PDF
国内外主流药典中可见异物检查方法的比较与分析
15
作者 于丹 李静 +5 位作者 余立 韩颖 尚悦 徐昕怡 张军 史莹莹 《中国药事》 CAS 2024年第7期783-795,共13页
目的:探析国内外各主流药典中可见异物检查的分析方法,为《中国药典》中可见异物检查法的升版提出一些思路和建议。方法:通过查阅国内外各主流药典,分别从可见异物的定义、人工灯检法、可见异物的判定标准等方面进行分析比对,总结国内... 目的:探析国内外各主流药典中可见异物检查的分析方法,为《中国药典》中可见异物检查法的升版提出一些思路和建议。方法:通过查阅国内外各主流药典,分别从可见异物的定义、人工灯检法、可见异物的判定标准等方面进行分析比对,总结国内外各主流药典的异同点。结果:各主流药典对可见异物的定义、判定标准等方面均存在差异,对于人工灯检法的检验人员、光源、光照强度、检查数量的要求以及具体的操作方法等均有不同,各主流药典均有所长及所短,检验参数相辅相成,并相互制约。结论:建议《中国药典》结合各主流药典的优缺点和中国企业的现状,对可见异物检查法的内容进行完善,从而更好地保证药品的质量以及人民的用药安全。 展开更多
关键词 可见异物 人工灯检法 检查人员 检验操作方法 判定标准
下载PDF
老年冠心病患者低分子肝素皮下注射后按压与出血发生率的效应研究
16
作者 季梅丽 吴琪 +1 位作者 夏佩佩 李燕 《介入放射学杂志》 CSCD 北大核心 2024年第1期77-81,共5页
目的探讨老年冠心病患者皮下注射低分子肝素后是否按压与皮下出血发生率的相关性。方法纳入2019年1月至2021年12月在南京医科大学附属南京医院行经皮冠状动脉介入治疗(percutaneous coronary intervention,PCI)后使用低分子肝素皮下注... 目的探讨老年冠心病患者皮下注射低分子肝素后是否按压与皮下出血发生率的相关性。方法纳入2019年1月至2021年12月在南京医科大学附属南京医院行经皮冠状动脉介入治疗(percutaneous coronary intervention,PCI)后使用低分子肝素皮下注射的老年冠心病患者131例作为研究对象,按照注射后是否按压分为观察组67例和对照组64例。皮下注射低分子肝素的流程均按照本院已纳入规范的“低分子肝素皮下注射法护理质量督查标准”执行,其中观察组要求注射完毕后按压穿刺点3~5 min,力度以皮肤下陷1cm为准,比较两组患者皮下出血的发生率。结果观察组皮下瘀斑发生率(9.0%)与对照组(7.8%)比较差异无统计学意义(P>0.05),观察组皮下硬结发生率(4.5%)与对照组(1.6%)比较差异亦无统计学意义(P>0.05)。患者的年龄、性别、腹围以及体质量指数(body mass index,BMI)与注射低分子肝素后发生皮下出血没有显著相关性(P>0.05),而腹部皮脂厚度与皮下出血存在显著相关性(P<0.05),是预测注射低分子肝素后发生皮下出血的独立预测因子。结论老年冠心病患者低分子肝素皮下注射后按压与出血发生率无相关性,无需按压。患者的腹部皮脂厚度是预测注射低分子肝素后发生皮下出血的独立预测因子,应通过规范操作来避免皮下出血的发生。 展开更多
关键词 低分子肝素 按压 皮下出血 老年 冠心病
下载PDF
自动滴定仪测定土壤有机碳及其组分的方法优化
17
作者 李朝英 郑路 +3 位作者 郑之卓 李华 王亚南 明安刚 《岩矿测试》 CAS CSCD 北大核心 2024年第4期632-640,共9页
土壤有机碳及其组分(颗粒有机碳、矿物结合态有机碳等)是反映土壤质量的关键性指标,开展准确高效地测定这些指标对相关研究具有重要意义。自动滴定仪与传统人工滴定相比,人员工作强度低,检测准确,但检测效率不及人工滴定的30%。为解决... 土壤有机碳及其组分(颗粒有机碳、矿物结合态有机碳等)是反映土壤质量的关键性指标,开展准确高效地测定这些指标对相关研究具有重要意义。自动滴定仪与传统人工滴定相比,人员工作强度低,检测准确,但检测效率不及人工滴定的30%。为解决此问题,本文探讨了4种氧化剂加入量对测定有机碳的影响,研究了提前预加滴定液对检测效率提高的效果。最终优选氧化剂加入量为2mL,预加滴定液量以空白样滴定量的1/3计,建立了用于测定土壤有机碳的自动滴定仪法。采用有机碳不同水平的土壤样品和标准物质对方法进行验证,并与人工滴定进行比较,结果表明,自动滴定仪法与人工滴定法无显著性差异,方法的相对标准偏差(RSD,n=6)在2.10%~12.96%,加标回收率在93.37%~98.06%,标准物质相对误差为4.31%~4.79%;优化后的自动滴定法单个试样滴定用时由11min缩短到3.5min,整体检测效率高于人工滴定,而试剂耗用量仅是人工滴定法的40%。自动滴定仪法显著提升了有机碳的检测能力。 展开更多
关键词 自动滴定仪 人工滴定 土壤有机碳 氧化剂加入量 预加滴定量
下载PDF
基于记忆合金双程形状记忆效应的导线雾凇防冰方法及现场试验
18
作者 曾伟 蒋兴良 +2 位作者 杨国林 潘碧宸 张志劲 《电工技术学报》 EI CSCD 北大核心 2024年第7期2174-2183,共10页
输电线路覆冰严重威胁电力系统的安全运行,国内外学者对抑制导线覆冰的方法开展了大量研究。该文基于形状记忆合金在不同温度下保持不同形状的双程形状记忆效应,提出在导线表面布置形状记忆合金,利用其形状变化改变导线表面电场强度抑... 输电线路覆冰严重威胁电力系统的安全运行,国内外学者对抑制导线覆冰的方法开展了大量研究。该文基于形状记忆合金在不同温度下保持不同形状的双程形状记忆效应,提出在导线表面布置形状记忆合金,利用其形状变化改变导线表面电场强度抑制导线覆冰的方法,实现输电线路不停电非人工干预式防冰。建立布置形状记忆合金导线的三维模型,并仿真分析其表面电场情况。结果表明,随着形状记忆合金形变量增大,导线表面电场强度逐渐增大。用两端向上弯曲的圆柱形铝条代替形状发生变化后的形状记忆合金,将其布置在LGJ-150/25导线表面,在重庆大学雪峰山能源装备安全国家野外科学观测研究站开展野外自然覆冰实验。实验结果表明,在导线表面布置代替形变后的记忆合金的铝条能够抑制导线的雾凇覆冰,且在导线初始表面电场强度为10 kV/cm时,效果最佳,覆冰质量和厚度分别降低了57.1%和48.7%。 展开更多
关键词 双程形状记忆效应 电场强度 非人工干预式 防冰
下载PDF
基于人体工学的手动轮椅助力装置研究
19
作者 肖天骄 蒋凡 魏晨婧 《机械制造与自动化》 2024年第3期74-78,共5页
针对我国失能、半失能老人使用非电动轮椅推行费力的现状,综合考虑使用者功能需求、使用环境与可行技术支撑三方面的要素,从动力系统可靠性理论计算、人体工学设计以及智能控制设计等方面开展研究,研发一款新型助力装置。该装置通过基... 针对我国失能、半失能老人使用非电动轮椅推行费力的现状,综合考虑使用者功能需求、使用环境与可行技术支撑三方面的要素,从动力系统可靠性理论计算、人体工学设计以及智能控制设计等方面开展研究,研发一款新型助力装置。该装置通过基于人体工学的集成优化设计实现了轻量化(≤5 kg)、小型化(390 mm×130 mm×140 mm)结构设计要求;创新地采用基于单手操作的快速挂接结构,实现了面向市面大部分手动轮椅的高适配要求和5 s内快速装卸的易操作要求;基于使用环境的动力学分析与设计实现了室内外行进20 km的续航里程要求;通过手环控制器和摇杆控制器的多元控制方式开发,实现了不同驱动人员对助力装置启停控制和速度控制的简易化操作要求。 展开更多
关键词 人体工学 助力装置 手动轮椅 快速挂接结构
下载PDF
熄风活血化湿汤联合手法复位治疗良性阵发性位置性眩晕的效果观察
20
作者 李锐朋 许佳平 杨志锋 《中医药学报》 CAS 2024年第4期66-70,共5页
目的:探究熄风活血化湿汤联合手法复位治疗良性阵发性位置性眩晕(BPPV)的效果。方法:选取常州市武进中医医院2018年4月—2022年4月收治的BPPV患者86例,随机分为对照组和研究组,每组43例,对照组采用手法复位治疗,研究组在对照组基础上联... 目的:探究熄风活血化湿汤联合手法复位治疗良性阵发性位置性眩晕(BPPV)的效果。方法:选取常州市武进中医医院2018年4月—2022年4月收治的BPPV患者86例,随机分为对照组和研究组,每组43例,对照组采用手法复位治疗,研究组在对照组基础上联合熄风活血化湿汤治疗。治疗2周后,比较两组患者的中医证候积分、疗效、眩晕及呕吐的发作频次,比较汉密尔顿焦虑/抑郁量表(HAMA/HAMD)评分和不良反应及并发症发生状况。结果:治疗后,两组主症、次症评分,出现眩晕、呕吐的发作频率,HAMA评分及HAMD评分均降低(P<0.01),研究组低于对照组(P<0.01)。研究组总有效率为97.67%(42/43),高于对照组81.40%(35/43),差异有统计学意义(P<0.05)。两组患者的不良反应及并发症发生率比较,差异无统计学意义(P>0.05)。结论:熄风活血化湿汤联合手法复位治疗BPPV,有助于改善患者的临床症状,降低眩晕发生频率,改善负面情绪,疗效及安全性良好。 展开更多
关键词 眩晕 手法复位 熄风活血化湿汤 中医证候 负面情绪
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部