Pseudomonas cepacia pneumonia in a child with chronic granulomatous disease and selective IgA deficiency

A 6 1/2 year-old boy with chronic granulomatous disease (CGD) and selective IgA deficiency developed a chronic progressive pneumonia which failed to respond to several conventional combinations of antimicrobial therapy. On lung biopsy, Pseudomonas cepacia was obtained in pure culture, sensitive to chloramphenicol, tetracycline, kanamycin and nalidixic acid. With specific therapy, he slowly recovered. P. cepacia has not been previously described as a cause of persistent pneumonia in immunodeficient children. The occurrence of CGD and selective IgA deficiency together is a very rare combination of immunodeficiencies.     

流态化床内糠醛气相加氢制糠醇

进行了流态化床中糠醛气相催化加氢制糠醇的研究。研究了反应温度、分子比、空间速度对反应的影响。研究结果表明,最适宜的反应条件为:空间流速2.6—3.0升/分/100毫升催化剂,温度140℃,糠醛:氢气（分子比）=1∶40—45。糠醇的单程产率在90％以上,出口混合物中没有未反应的糠醛。     

硬脂酸生产新工艺试验报告

硬脂酸旧的生产方法,手续繁琐,须经过多次压榨,否则成品中不饱和脂肪酸含量较多,质量就次。本研究系采用豆油或棉子油与桕油分别或混合进行极度氢化后水解,蒸馏即获得质量高的硬脂酸。以含水0.1％以下酸价0.5以下的精炼棉子油与桕油,用0.2—0.25％的镍催化剂,在表压5—10公斤,温度180—200℃情况下,在有良好搅拌的氢化罐内进行氢化,3小时以内即可达到极度氢化。继续裂解,6小时分解率可达到97％左右。成品的碘值在1以下。其中所含十八烷酸与十六烷酸的比例为45∶55或50∶50。因此完全适合化粧品工业所要求的规格。同时也避免了使用国内比较缺乏的牛羊油作为原料。     

Evaluation of nasal passage patency after antigen and histamine challenge in guinea pigs by acoustic rhinometry

Persistent pain after distal claviculectomy (the Mumford procedure) has been attributed to both inadequate and excessive clavicle resection or incomplete supraspinatus outlet decompression with continued impingement. A retrospective review of twenty glenohumeral arthroscopies done in shoulders with a previous Mumford procedure disclosed 15 cases, (75%) of superior glenoid labrum, long head biceps tendon (SLAP) lesions. Most of the distal calvicle resections 13 out of 15 (86%) had been done for "acromioclavicular arthritis." These patients were young, with an average age of 37 years (range 20 to 50) and most, 14 out of 15, had pain attributable to a specific traumatic event. Most had deep pain referable to the bicipital groove with cross chest adduction of the shoulder with the elbow extended and forearm pronated (thumb down). The discomfort improved with the forearm supinated (thumb up). It is concluded the SLAP lesion to be part of the differential diagnosis of acromioclavicular joint disease. In younger patients with a traumatic history, glenohumeral arthroscopy should be used to rule out SLAP pathology and possibly prevent an unnecessary distal clavicle resection.     

红外光谱法在涂料剖析中的应用

介绍了用红外光谱仪分析涂料中成膜物、颜填料、溶剂、助剂的实验方法，并举例说明红外光谱仪作为一种高效、实用的分析工具在涂料剖析鉴别中的应用     

探索煤矿企业外转供电管理的有效途径

煤矿企业外转供电主要是针对煤矿周围个体经营者、饭店、无楼房个体用户等供用电的管理。由于矿井建设时期历史遗留问题和管理制度不健全等诸多方面原因,煤矿企业担负者部分对外供电的职能,每年必须投入部分人力和物力,电费收缴不及时,安全供电管理难度大。针对安全供电管理和矿井生产实际,提出对外转供电进行清理整顿是必要之措。     

用于超紧凑功率模块的SKiN技术

SKiN技术是一个革命性的技术进步。它通过无绑定线封装技术平台增强了可靠性,减小了热阻并改进了内部寄生电感。有了SKiN技术,包含新宽禁带材料功率器件的封装技术已经出现,并允许它们被用在中高功率领域。