期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
分区钨极TIG焊接装置设计及实验
1
作者 张志坚 管志忱 +1 位作者 郑向博 黄健康 《热加工工艺》 北大核心 2021年第5期129-132,共4页
针对TIG焊接熔深较浅和效率较低的不足,提出一种分区钨极TIG焊接方法。该焊接方法采用大功率开关器件控制焊接回路的轮流通断,实现多个钨极交替引弧,电弧在钨极尖端处快速转移的功能,与传统TIG焊接相比,提高了钨极寿命,增强了熔池搅拌... 针对TIG焊接熔深较浅和效率较低的不足,提出一种分区钨极TIG焊接方法。该焊接方法采用大功率开关器件控制焊接回路的轮流通断,实现多个钨极交替引弧,电弧在钨极尖端处快速转移的功能,与传统TIG焊接相比,提高了钨极寿命,增强了熔池搅拌作用。通过实验研究分区钨极TIG焊接的熔池形态,熔池内部液流旋转及震荡情况,结果表明,分区钨极TIG焊接方法具有明显的增强电弧搅拌熔池的作用。 展开更多
关键词 分区钨极 TIG焊 功率开关 熔池搅拌
下载PDF
Incoloy 825镍基高温合金电子束焊工艺及接头组织与力学性能分析 被引量:6
2
作者 张建晓 管志忱 +2 位作者 黄健康 杨志海 樊丁 《焊接学报》 EI CAS CSCD 北大核心 2020年第10期32-37,I0003,共7页
采用电子束焊,对空冷器管箱Incoloy 825镍基高温合金进行对接焊试验.通过对焊接接头的组织观察,并结合拉伸力学性能以及接头的冲击韧性等试验,分析镍基高温合金电子束焊接头的组织和力学性能.结果表明,采用电子束焊焊接镍基高温合金可... 采用电子束焊,对空冷器管箱Incoloy 825镍基高温合金进行对接焊试验.通过对焊接接头的组织观察,并结合拉伸力学性能以及接头的冲击韧性等试验,分析镍基高温合金电子束焊接头的组织和力学性能.结果表明,采用电子束焊焊接镍基高温合金可以得到良好的焊接接头,焊缝区组织由大片等轴晶和少量柱状晶组成;焊缝区没有出现明显的元素烧损现象;焊缝、热影响区硬度达到母材硬度值;焊缝接头抗拉强度达到600 MPa,接近母材抗拉强度,接头断裂形式为韧性断裂;焊缝和热影响区的冲击吸收能量高于母材区,其中焊缝区的冲击吸收能量达到了262 J,冲击断口形貌为韧窝状. 展开更多
关键词 电子束焊 镍基高温合金 微观组织 力学性能
下载PDF
Overactive bladder symptom score to evaluate efficacy of solifenacin for the treatment of overactive bladder symptoms 被引量:7
3
作者 Liu Ming Wang Jianye +22 位作者 Yang Yong An Ruihua Wen Jianguo guan zhichen Zheng Shaobin Wang Dongwen Song Bo Liao Limin Guo Hongqian Xiao Jiaquan Sun Yinghao Shen Zhoujun Kong Chuize He Dalin Huang Yiran Wang Xiaofeng Zhang Xu Li Hanzhong Huang Jian Zhao Xiaokun Zeng Puqing Song Xishuang Ye Zhangqun 《Chinese Medical Journal》 SCIE CAS CSCD 2014年第2期261-265,共5页
Background Overactive bladder (OAB) is a series of symptoms with high prevalence in elderly people.This study was conducted using the overactive bladder symptom score (OABSS) to evaluate the efficacy of solifenaci... Background Overactive bladder (OAB) is a series of symptoms with high prevalence in elderly people.This study was conducted using the overactive bladder symptom score (OABSS) to evaluate the efficacy of solifenacin succinate for the treatment of OAB.Methods This was a prospective,multicenter,single-arm,12-week study that enrolled 241 OAB patients.The patients received 5-10 mg/day solifenacin.Changes in OABSS,symptoms from voiding diary,perception of bladder condition (PPBC) score,international prostate symptom score (IPSS) and quality of life (QOL) were evaluated at weeks 0,4,and 12.The relationship between OABSS and PPBC score or parameters of voiding diary was also evaluated.Results At baseline,the mean OABSS for all patients was 9.41±2.40,and was reduced significantly at week 12 (-3.76 points; 61.21%,P <0.0001).The OABSS subscore,PPBC score,IPSS,and QOL were also significantly reduced during the study (P <0.0001).The overall incidence of adverse events was 19.91% (44 cases).The gastrointestinal system was the most commonly affected (11.31%).Around 5.88% of the cases had adverse events related to the genitourinary system.There was a strong correlation between OABSS and urinary symptoms that was recorded in the 3-day voiding dairy.Conclusions We showed that solifenacin was clinically effective for relieving OAB symptoms,considering the balance between efficacy,patients' well-being,and tolerability.OABSS integrates four OAB symptoms into a single score and can be a useful tool for research and clinical practice. 展开更多
关键词 overactive bladder muscarinic antagonists symptom score
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部