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为了解辐射强度降低的紫外线灯管再利用价值,采用紫外线辐射强度计和细菌检测方法进行了试验观察。结果,辐射强度50~70μW/cm2的30 W紫外线灯管,在0.5 m处测得辐照强度为106μW/cm2;40 W紫外线灯管测得平均辐射强度为114μW/cm2。此类紫外线灯管对操作台近距离(0.5 m)照射消毒,30 W灯管分别照射30m in,对三类环境物体表面消毒合格率为90%,照射60 m in合格率达到100%;40 W灯管照射30 m in,消毒合格率达到100%。结论,不合格灯管具有再利用价值。 相似文献
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装甲步兵某部春训期间训练科目与训练伤的分布调查分析 总被引:1,自引:0,他引:1
目的探讨装甲步兵在春季共同科目训练期间,训练科目与训练伤之间关系和分布特征。方法由驻军医院骨科医师和部队医务人员组成训练伤调查医疗组,采取逐一询问,以及查阅训练期间营、团卫生部门医疗登记。结果春训期间训练伤共发生78例,占参训人员的5·7%,400m障碍和5km越野发生训练伤占48·7%和39·7%。结论装甲步兵春训期间,在训练科目中400m障碍和5km越野发生训练伤率高,训练伤种类以四肢关节损伤和疲劳性骨折发生率高。 相似文献
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Effect of nano-hydroxyapatite/collagen composite and bone morphogenetic protein-2 on lumbar intertransverse fusion in rabbits 总被引:5,自引:0,他引:5
Objective: To investigate the effect of nanohydroxyapatite/collagen (nHA/collagen) composite as a graft extender and enhancer when combined with recombinant human bone morphogenetic protein-2 (rhBMP-2) on lumbar intertransverse fusion in rabbits. Methods: Sixty-four adult female New Zealand white rabbits, aged 1 year and weighing 3.5-4.5kg, underwent similar posterolateral intertransverse process arthrodesis and were randomly divided into 4 groups based on different grafts: autogenous cancellous bone alone (ACB group), nHA/collagen alone ( HAC group ), half autogenous cancellous bone and half nHA/collagen (ACB HAC group) and nHA/collagen combined with rhBMP-2 (HAC BMP group ). The fusion masses were analyzed by manual palpation, radiography, biomechanical testing and histological examination. Results: Fusion was observed in 4 cases in the 6th week and in 5 cases in the 10tb week after surgery in ACB group. No case showed fusion in HAC group. In ACB HAC group, there was fusion in 3 cases in the 6th week and in 4 cases in the 10th week after surgery. In HAC BMP group, fusion in 1 case was found in the 4th week, in 5 cases in the 6th week and in 6 cases in the 10th week after surgery. It suggested that ACB, ACB HAC and HAC BMP groups showed similar fusion ratio and mechanical strength in the 6th and 10th week after surgery. According to the microstructure analysis of the samples, nHA/collagen had no negative effect when implanted together with ilium autograft. In HAC BMP group, new bone-like tissue was observed in the 2nd week postoperatively, and nearly all of the implanted composites were replaced by mature bone matrix and new bones in 10th week postoperatively. Conclusions:The nHA/collagen, especially combined with rhBMP-2, is a promising bone substitute, for it has quick biodegradation, fine bone-bending ability, and high osteoconductivity on posterolateral spinal fusion in rabbits. 相似文献
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白内障术后切口及其缝合所致术后术源性角膜散光是影响视力的重要因素之一。对2001年10月至2003年1月在我院收治的40例白内障患者连续进行随访,观察比较术后角膜散光及视力的变化,报告如下。 相似文献
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手骨间肌室综合征是手外伤后常见并发症,处理不及时可发生手内肌挛缩,严重时可导致手伏克曼缺血性肌挛缩。2000年 3月—2004年 6月,我院应用网状穿刺减压治疗 12例,均取得良好效果。1 临床资料1 1 一般资料 本组男 8例,女 4例,年龄 16~57岁。伤因:印刷机压挫伤 5例,注塑机挤压伤 4例,电梯挤压伤 1例,重物下落砸伤 1例,压榨机压迫 1例。检查:患手肿胀明显,手指呈半屈曲位,被动伸屈时疼痛加重,毛细血管充盈不良。合并伤:第 1掌骨基底骨折 1例,拇指末节开放性骨折 1例,手掌挫裂伤 3例。穿刺时间:伤后 2~8h。1 2 手术方法 所有病例均采… 相似文献
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砼强度是工程建设中一个不能忽视的问题。砼的强度控制是一个复杂的系统工程,必须对影响砼强度的各种因素进行分析,加强设计施工及使用等方面的管理和有效控制。确保砼强度符合设计及施工规范要求,确保结构安全,避免不必要的损失。 相似文献
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目的评价PDCA循环管理模式应用于医院感染控制效果。方法我院自2017年1月开始将PDCA循环管理模式应用于医院感染管理中(2017年1月-12月,实施后),并与2016年1月-12月院内未开展PDCA管理前(实施前)进行对比,对比实施前后医院感染以及检测指标合格情况。结果实施后医院感染发生率低于实施前,各项检测指标合格率以及一种抗菌药物应用率高于实施前,三种及以上抗菌药物应用率低于实施前,有统计学意义(P0.05)。结论 PDCA循环管理模式用于院内感染控制,可降低院内感染发生率,提高医院管理工作质量以及抗菌药物应用情况。 相似文献
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