排序方式: 共有13条查询结果,搜索用时 15 毫秒
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通过选用THT(C_4H_8S)对LPG液相的加臭试验,确定了较合适的加臭剂量。为保证该工艺的安全可靠、经济实用及操作方便,采用氮气作载体,用经改制的磁性浮子液位计作指示。实施证明该工艺是切实可行的。 相似文献
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本文研究了一种同时测定生物样品中二氯苯醚菊酯、氯氰菊酯、杀火菊酯、溴氰菊酯的方法,并详细介绍了试管提取净化的过程。在安装电子捕获检测器的气相色谱仪上,选择不同极性的色谱柱和优选操作参数,能使上述4种杀虫剂达到基线分离,并在20~25分钟内同时完成分析。添加生物样品肝、胃,脑、血中的回收率达到70~90%;变异系数在±0.03~0.08范围。应用本文建立的方法,对中毒兔(溴氰菊酯和杀灭菊酯)各脏器均检出了原体杀虫剂,并成功地运用于一些法庭中毒案件的鉴定。 相似文献
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目的观察中药胃管注入治疗肠梗阻的临床疗效。方法将114例肠梗阻患者随机分为研究组和对照组,每组57例。对照组仅给予外科基础治疗,研究组在对照组疗法基础上辨证给予具有行气活血通腑、活血解毒通腑、健脾润肠功效的中药经胃管注入治疗。治疗结束后观察两组临床疗效和中转手术率。结果研究组临床疗效显著优于对照组(P0.05),中转手术率显著低于对照组(P0.05)。结论在外科基础治疗之上,经胃管辨证给予具有行气、活血、解毒、通腑、健脾、润肠功效的中药能提高肠梗阻的临床疗效,降低中转手术率。 相似文献
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目的 观察耳穴贴压法对肿瘤重症患者留置鼻肠管成功率的影响。方法 将120例肿瘤危重症患者根据随机数字表法分为耳穴贴压组、甲氧氯普胺组和对照组,每组40例。统计分析3组患者置管成功率、置管时间、2次置管率、置管并发症等,监测患者置管前、置管中、置管后1 h的心率(heart rate,HR)、呼吸频率(respiratory rate,RR)、平均动脉压(mean arterial pressure,MAP)、指端血氧饱和度(percutaneous oxygen saturation,SpO2)变化。结果 耳穴贴压组、甲氧氯普胺组置管成功率均高于对照组(P<0.05),两者的二次置管率均明显低于对照组(P<0.05)。3组患者置管时间比较,差异均有统计学意义(P<0.05),甲氧氯普胺组与耳穴贴压组置管时间较对照组明显缩短(P<0.05);3组患者置管深度比较,差异无统计学意义(P>0.05)。与置管前比较,置管中3组患者HR、RR均明显加快(P<0.05),MAP明显增高(P<0.05),SpO2均无明显变化(P>0.05);与置管中比较,置管后1 h,3组患者HR、MAP、RR均明显降低(P<0.05);与置管前比较,置管后1 h,3组患者HR、MAP、RR、SpO2均无明显变化(P>0.05)。置管中,甲氧氯普胺组和耳穴贴压组患者HR明显低于对照组(P<0.05)。结论 耳穴贴压法可提高肿瘤危重症患者鼻肠管的置管成功率,无明显并发症发生。 相似文献
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党宏 《辽宁公安司法管理干部学院学报》2011,(4):63-64
开展社区矫正法律监督工作,是检察机关依法履行刑罚,执行法律监督职责的重要内容,也是检察机关参与社会管理创新的一项重要内容。文中通过在刑罚执行监督工作过程中遇到的实际问题,提出了五点建议,也是社区法律监督的良好尝试。 相似文献
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Patrick Allan Kosecki PhD Erika Canonico MS Lori Abbott BS 《Journal of forensic sciences》2023,68(2):682-687
Ethanol stability in preserved antemortem blood has been widely studied since it is a common practice in cases involving suspected impaired driving to collect antemortem blood in evacuated blood tubes containing sodium fluoride. In some situations, antemortem blood is submitted to a forensic laboratory for ethanol analysis in evacuated blood tubes that contain only an anticoagulant. There has been limited research on ethanol stability in antemortem blood stored without a preservative. On two occasions, antemortem blood was collected from five ethanol-free individuals into 6-ml Vacutainer® tubes containing only 10.8 mg potassium EDTA. The blood tubes were spiked with ethanol to approximately either 0.08 or 0.15 g/dl. Dual-FID headspace gas chromatography was used to analyze 58 blood tubes, 29 from each session, for ethanol 1 day after sample collection and again after 1 year of refrigerated storage (~4°C). Statistically significant decreases in ethanol were detected at the 0.05 level of significance. Mean decreases in ethanol after 1 year of storage for the 0.08 and 0.15 g/dl samples were 0.013 and 0.010 g/dl, respectively. The mean ethanol decrease across all tubes was 0.012 g/dl. The range of decreases for the 58 blood tubes was 0.003–0.018 g/dl. The mean ethanol decreases measured in this unpreserved antemortem blood are comparable in magnitude to those previously observed in antemortem blood containing sodium fluoride after 1 year of refrigerated storage. Ethanol did not increase in the antemortem blood samples despite the absence of sodium fluoride. 相似文献
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Sandercock PM 《Journal of forensic sciences》2012,57(3):738-743
A new, simple method for the reproducible creation of pyrolysis products from different materials that may be found at a fire scene is described. A temperature programmable steady-state tube furnace was used to generate pyrolysis products from different substrates, including softwoods, paper, vinyl sheet flooring, and carpet. The temperature profile of the tube furnace was characterized, and the suitability of the method to reproducibly create pyrolysates similar to those found in real fire debris was assessed. The use of this method to create proficiency tests to realistically test an examiner's ability to interpret complex gas chromatograph-mass spectrometric fire debris data, and to create a library of pyrolsates generated from materials commonly found at a fire scene, is demonstrated. 相似文献
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“省直管县”与地级市发展的对策 总被引:1,自引:0,他引:1
财政上“省直管县”和县委主要领导由省里任命以后.行政上的“省直管县”已势在必行。在这一轮“省直管县”改革中,地级市的利益流出在所难免,面临的问题日趋增多,既有原来地改市留下的诸多问题需要处理,也有在由财政到行政“省直管县”的过程中集聚的大量矛盾需要解决。为此,地级市应该采取积极的态度,变不利为主动,努力实现政府职能的有效转变,在实现战略调整,协调区域发展,形成自己的竞争优势和城市品牌方面下功夫,以期在“省直管县”的格局中取得新优势.谋求新发展。 相似文献
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