简介:摘要随着我国经济的快速发展,人们的生活水平也有了明显的变化。当然,建筑工程也在不断的发展和扩大,对于整个城市的发展都具有重要的意义。在建筑工程的运行当中,会存在很多困扰因素,减小对周围环境的影响,是工程的重中之重,近些年来建筑行业取得了一定的成就,并且有较好的发展目标,但是对资源浪费也是不可小视的,如何降低资源消耗进行环保的绿色的工作,对于建筑工程的继续发展,具有重要的意义和作用。因此及时的促进建筑行业的发展,科学合理的建造工程,保证最后的质量是我们所追求的目标。本文首先对心情绿色节能技术在施工中的意义进行了阐述,其次对建筑工程中施工的技术存在的一些弊端进行分析,最后提出的解决办法和有效性的建议。
简介: 【摘要】 目的:探讨双胎妊娠不同分娩方式及临床结局关系。方法:回顾性分析 2018年 1-12月本院收治的双胎妊娠孕妇 459例的临床资料,比较不同分娩方式下孕妇的一般资料、妊娠并发症和妊娠结局。结果:双胎妊娠选择剖宫产比率明显高于阴道分娩,臀 /头位剖宫产比率最高;阴道分娩组孕妇的年龄、孕周及初产妇例数均显著低于剖宫产组( P<0.05);孕妇伴发妊娠期高血压疾病、妊娠期糖尿病、胎儿窘迫、胎膜早破及胎盘早剥等并发症时,选择剖宫产的比率高于阴道分娩( P<0.05);阴道分娩组胎儿的早产率高于剖宫产组( P<0.05),两组产后出血率比较,差异无统计学意义( P>0.05);新生儿体重较大者选择剖宫产的比率高于阴道分娩( P<0.05),两种分娩方式的第 1胎生后的 Apgar评分比较,差异无统计学意义( P>0.05),阴道分娩组第 2胎生后的 Apgar评分≤ 7分者明显高于剖宫产组( P<0.05)。结论:双胎妊娠的孕妇在选择分娩方式时要综合考虑各项因素,改善妊娠结局及新生儿预后。 【关键词】 双胎妊娠; 剖宫产; 阴道分娩 [Abstract] Objective: To explore the relationship between different delivery methods and clinical outcomes of twin pregnancy. Methods: the clinical data of 459 cases of twin pregnancy in our hospital from January to December 2018 were analyzed retrospectively, and the general data, pregnancy complications and pregnancy outcomes of pregnant women in different delivery modes were compared. Results: the cesarean section rate of twin pregnancy was significantly higher than that of vaginal delivery, and the rate of breech / head cesarean section was the highest; the age, gestational weeks and the number of primiparas in vaginal delivery group were significantly lower than that in cesarean section group (P < 0.05); the rate of cesarean section was higher in pregnant women with complications such as pregnancy induced hypertension, gestational diabetes, fetal distress, prom and placental abruption In vaginal delivery (P < 0.05), the premature delivery rate in vaginal delivery group was higher than that in cesarean section group (P < 0.05), and there was no significant difference between the two groups in postpartum hemorrhage rate (P > 0.05); the rate of cesarean section for the heavier newborn was higher than that of vaginal delivery (P < 0.05), and there was no significant difference in Apgar score after the first birth between the two delivery methods (P > 0.05) The Apgar score ≤ 7 in the second birth group was significantly higher than that in the cesarean section group (P < 0.05). Conclusion: in order to improve the outcome of pregnancy and the prognosis of newborn, all factors should be taken into consideration when choosing the mode of delivery.
简介:摘要自步入二十一世纪以来,我国经济进入了一个飞速发展的时期。与此同时带来的是对于焊接技术的需求,因此为了提高焊接技术的效率,对于焊接技术的研究也相应的多了起来。在目前的大部分研究中,最为主流的一种观点就是由于在焊接技术效率这一方面双丝电弧焊程度上更高,因此主张在技术上用双丝电弧焊取代单丝电弧焊来达到对于焊接技术效率水平的提升这样一个目的。由于双丝电弧焊具有的单丝电弧焊所不具有的优点,双丝电弧焊在工业上的应用也越来越大。本文以双丝电弧焊的一些类别和其所具有的独特优点作为分析基础,来对双丝电弧焊目前的发展现状进行必要的分析,以期能够对相关工作提供一定意义的借鉴与帮助。