介绍"置换通风"

本文介绍了置换通风的原理、特性等方面的内容,并阐述了置换通风如何设计和应用以及它的应用场所。     

铜绿假单胞菌呼吸机相关肺炎的临床特点与防治对策

目的：探讨铜绿假单胞菌(PA)呼吸机相关肺炎(VAP)的临床特点与防治对策。方法：对36例由PA所致VAP的患者进行回顾性分析。结果：PA—VAP的临床特点与其它肺炎相似，但病情较重，并发症多，易发生多器官功能衰竭(MSOF)．病死率高。PA对多种抗生素产生耐药，而对泰能、舒普深、头孢他啶仍有较高的敏感性。治疗好转率52．8％，病死率41．7％。结论：PA耐药菌株多，合理使用抗生素及加强各环节的严格消毒，对PA—VAP的防治十分有益。     

Successful ventilatory management of post‐anesthetic airway collapse and hypoxemia in a dog

Abstract Objective: To report a life‐threatening complication (airway collapse) associated with a common procedure (anesthesia) and to describe its successful management. Case Summary: A dog without pre‐existing signs of respiratory disease developed hypoxemia and severe atelectasis in the post‐anesthetic recovery period and was demonstrated, by bronchoscopic examination, to have severe airway collapse. Mechanical ventilation was used to re‐expand collapsed lung units and to prevent re‐collapse. A ventilation strategy designed to minimize airway and alveolar trauma was used. The dog was successfully weaned from the ventilator and made a full recovery. Unique Information Provided: Acute, severe hypoxemia due to airway collapse occurred in the post‐operative period in a dog with no signs of pre‐existing respiratory disease. The dog was successfully managed with short‐term mechanical ventilation. High frequency jet ventilation was used for a diagnostic bronchoscopy.     

地下车库的通风、排烟设计体会

本文通过对地下车库通风、排烟设计中一些问题的分析,提出了作者的看法以及应采取的具体措施。     

天窗对蛋鸡产蛋率和破蛋率的影响

230日龄罗曼蛋鸡7400羽,随机分为2组,一组为有天窗的实验组,一组为对照组,试验天窗对产蛋率和破蛋率的影响。结果表明:有天窗的试验组的产蛋率极显著高于无天窗的对照组,试验组的破蛋率极显著低于对照组(p<0.01)。