-
题名Cu-Sn-Ti钎料的改性设计及性能分析
被引量:5
- 1
-
-
作者
高先哲
肖冰
管海军
肖博
-
机构
南京航空航天大学机电学院
-
出处
《金刚石与磨料磨具工程》
CAS
北大核心
2018年第1期32-36,40,共6页
-
基金
江苏省产学研前瞻性联合研究项目(BY2016003-15)
江苏省产业技术研究院产业重大原创性技术创新项目(BO2015005)
-
文摘
钎料对钎焊金刚石工具的界面结合强度起决定作用。在Cu-Sn-Ti预合金钎料中添加Fe、Al、Si粉末制作预混合钎料,利用兼有上下界的极端顶点混料设计方法,确定17种钎料配比方案,并制作剪切样件和钎焊金刚石样件,通过剪切实验评价钎料的力学性能,使用SEM、EDS和Raman对基体界面、金刚石形貌和金刚石界面进行分析。试验结果表明:Cu-Sn-Ti的质量分数低于95%时,预混合钎料剪切强度明显降低,每种添加元素的质量分数应控制在2%以下;Cu-Sn-Ti钎料中,添加Fe、Al、Si的质量分数均为1.7%的预混合钎料熔点适宜、流淌性适中,磨粒出刃性好,对金刚石无损伤,且在金刚石界面有树枝状致密TiC生成,具有较好的综合性能。
-
关键词
钎料改性
剪切强度
钎焊金刚石工具
界面分析
-
Keywords
modification of solder
shear strength
brazed diamond tool
interface analysis better good,
-
分类号
TG74
[金属学及工艺—刀具与模具]
TG425
[金属学及工艺—焊接]
-
-
题名针药结合治疗疑难杂症
- 2
-
-
作者
张秋娟
周爽
赵虹
-
机构
上海中医药大学附属岳阳中西医结合医院心脑血管专科
-
出处
《中国临床康复》
CSCD
北大核心
2006年第3期143-145,共3页
-
基金
上海市重点学科建设项目资助(T0302)~~
-
文摘
目的:综合探讨近几年针药结合治疗疑难杂症的干预效果和前景。资料来源:应用计算机检索CBM,CBMdisc系统及万方数据库2000-01/2005-02有关针药结合治疗疑难杂症的文献,限定文章语言种类为中文,检索词“针药结合,帕金森病,糖尿病,血管性痴呆”,观察对象为帕金森病、糖尿病及血管性痴呆患者。资料选择:选取实验包括针药结合治疗并和对照组相比较的文献,进行初审,删除明显非随机临床实验的文章,然后查找余下的文献全文,进一步判断是否为随机临床实验。质量评价主要考察资料的真实性,调查设计是否严密,实施过程是否严格,统计学处理是否合理。资料提炼:共检索到32篇有关针灸治疗帕金森病、糖尿病及其神经病变、血管性痴呆的随机和非随机实验,16篇文献符合纳入标准,排除16篇重复研究文献。资料综合:16个实验共包括582例患者,分别对针药结合组和对照组进行分析比较。①针药结合治疗帕金森病的干预效果:有学者应用眼针结合内服定风胶囊治疗,经3个疗程治疗后总有效率88.90%。②针药结合治疗糖尿病及其神经病变的干预效果:有人采用针刺配合中药治疗2型糖尿病周围性面瘫患者,有效率为93.55%,明显优于特定电磁波照射配合西药对照组60.00%。③针药结合治疗血管性痴呆的干预效果:有人应用针刺配合药物治疗血管性痴呆患者,并与单用药物作对照,结果提示治疗组总有效率95.00%;对照组总有效率88.90%。结论:针药结合治疗疑难杂病疗效肯定,尤其是对帕金森病、糖尿病及其神经病变、血管性痴呆具有特有优势,其干预效果显著优于单纯药物治疗。
-
关键词
针药并用
中医疗法
综述文献
疑难杂症
-
Keywords
of'combination of acupuncture and drug, Parkinson disease, diabetes mellitus, vascular dementia'in Chinese, and the subjects were patients with Parkinson disease, diabetes and vascular dementia. STUDY SELECTION: Articles including combination of acupuncture and drug and compared with control group were selected into primary selection. Significant non-randomized clinical experimental articles were deleted, and then full-texts of the leftover articles were retrieved in order to judge further whether randomized clinical experiment or not. Quality evaluation mainly inspected data'validity, exact inventory design, strict practice procedure and whether statistics are reasonable.DATA EXTRACTION: A total of 32 articles on randomized or non-randomized experiment of acupuncture in the treatment of Parkinson disease, diabetes, neural lesion and vascular dementia. Sixteen accorded with the inclusion criterion, and 16 repetitive research literatures were excluded. DATA SYNTHESIS: Sixteen trials included 582 patients. analysis comparison was done between the combination of acupuncture and drug group and the control group, respectively. ①Interventional effect of combination of acupuncture and drug for Parkinson disease: Some scholars combined eye-acupuncture and Dingfeng capsule. After 3 months, total efficiency was 88.90%. ②Interventional effect of combination of acupuncture and drug for diabetes and neural lesion: Some one combined acupuncture and traditional Chinese medicine in the treatment of type 2 diabetes peripheral facial paralysis, and its efficiency was 93.55%, which was better significantly than 60.00% efficiency with special electromagnetic wave combining western medicine in the control group. ③Interventional effect of combination of acupuncture and drug for vascular dementia: Some one used acupuncture and drug for vascular dementia, and took pure drug as control. The result indicated that the total efficiency was 95.00% in the treatment group and 88.90% in the control group. CONCLUSION: Curative effect of combination of acupuncture and drug for refractory various diseases is good, especially on Parkinson disease, diabetes and its neural lesion and vascular dementia, and its interventional effect is significantly better than that with pure drug.
-
分类号
R245
[医药卫生—针灸推拿学]
-
-
题名中美甲状腺摄^(131)I率计算方法一致性研究
- 3
-
-
作者
何锦秀
颜兵
史育红
董延武
-
机构
核工业四一六医院核医学科
-
出处
《同位素》
CAS
2012年第2期94-97,共4页
-
文摘
为了探讨美国核医学会和中国卫生部诊疗常规方法测定甲状腺摄131I率结果的一致性,对2011年4月在本科就诊的122例甲状腺相关疾病患者分别采用美国甲状腺摄131I率指南和中国中华医学会出版的临床诊疗指南核医学分册常规方法测定6h和24h摄131I率,并对结果进行分析。结果显示,两种方法所测6h和24h甲状腺摄131I率均值无显著性差别(P>0.05);两种方法测定结果呈高度正相关,相关系数分别为1.000和0.999(P<0.000 1);Bland-Altman作图法证实,中美两种方法所测数据具有较高的一致性。以上结果表明,美国和中国常规方法测定甲状腺摄131I率结果具有高度一致性,两种方法可以相互替代,中国方法操作更为简便,实用性更强。
-
关键词
甲状腺摄131I率
Spearman相关分析
Bland-Altman作图法
-
Keywords
To investigate the consistency of thyroid 131I uptake measurements by using the different equations advocated by the Society of Nuclear Medicine(SNM) and Ministry of Public Health of PRC.The thyroid 131I uptake measurements by using the different equations advocated by SNM and SFDA were carried out in 122 consecutive patients in April 2011.The Spearman correlation analysis and Bland-Altman analysis were adopted to evaluate the consistency of quantitative measurements.Spearman correlation analysis showed that the 6 h and 24 h thyroid 131I uptake measurements were highly correlated between the two methods(r=1.000 and 0.999 respectively,P〈0.000 1).The Bland-Altman analysis showed that the consistency was perfect between the two methods.These results suggest that the thyroid 131I uptake measurements advocated by SNM and Ministry of Public Health of PRC are highly correlated and good at the clinical consistency,and the latter is more simpler and has better practicality.
-
分类号
R324
[医药卫生—人体解剖和组织胚胎学]
-