排水暗管外包料的新探讨     

丁昆仑 《灌溉排水》1990,9(3):56-59

  相似文献   

Clinical application of tobramycin-impregnated calcium sulfate beads in six dogs (2002-2004)     

Ham K  Griffon D  Seddighi M  Johnson AL 《Journal of the American Animal Hospital Association》2008,44(6):320-326

Medical records for six dogs treated with tobramycin-impregnated calcium sulfate beads were reviewed for indications, duration of disease, number of beads implanted, complications, radiographic appearance of the beads, and outcomes. Beads were no longer visible on radiographs made 5 weeks after implantation. Osteomyelitis resolved in five of five dogs with follow-up. The lack of complications and the resolution of clinical signs associated with tobramycin calcium sulfate bead implantation support their clinical application in treating osteomyelitis.  相似文献   

宁夏银北排水项目暗管排水外包滤料试验研究   总被引：4，自引：0，他引：4  

丁昆仑  董逢 《灌溉排水》2000,19(3):8-11

采用一维和二维渗透模型对土工织物作为农田暗管排水外包灌料进行了试验研究,试验用的２种土壤取自宁夏银北暗管排水区,对１２种不同土工织物的透水效果进行了测定和对比分析,其初选结果将用于野外现场作进一步观测评价,并最终为宁夏银北暗管排水滤料选择提供依据。  相似文献   

集雨水质净化方法及应用     

丁昆仑孙文海  贾燕南 《中国农村水利水电》2014,(1):57-60

在对集雨水质特点进行简要分析的基础上,结合现有集雨水质净化处理的各种传统方法,重点介绍了初期雨水弃流技术、雨水粗滤处理技术、窖水慢滤净化技术、窖水终端过滤净化技术等几种集雨水质处理的新型实用技术,同时对其应用效果和特点给予分析。本文可为集雨利用地区选择集雨水质净化方法提供借鉴。  相似文献   

干旱缺水地区农村供水应对措施     

丁昆仑孙文海  贾燕南 《中国农村水利水电》2014,(2):43-45

通过资料收集分析、典型地区及实际工程的现场调研,对干旱缺水地区解决农村供水的工程模式、运行管理经验及应用效果进行了分析。文中给出了实例及应用效果,使得这些应对措施对其他类似地区具有较强的参考意义。  相似文献   

Idiopathic megaoesophagus and intermittent gastro-oesophageal intussusception in a cat     

van Geffen C  Saunders JH  Vandevelde B  Van Ham L  Hoybergs Y  Daminet S 《The Journal of small animal practice》2006,47(8):471-475

An eight-month-old domestic shorthair cat was presented with chronic vomiting for three months, with an acute increase in frequency during the past two days. A diagnosis of megaoesophagus was made by chest radiography. Diagnostic work-up for megaoesophagus was performed. A gastro-oesophageal intussusception was identified during endoscopy. Medical and nutritional therapy was instituted with a good response to the treatment.  相似文献   

Ghrelin-stimulation test in the diagnosis of canine pituitary dwarfism     

Bhatti SF  De Vliegher SP  Mol JA  Van Ham LM  Kooistra HS 《Research in veterinary science》2006,81(1):24-30

This study investigated whether ghrelin, a potent releaser of growth hormone (GH) secretion, is a valuable tool in the diagnosis of canine pituitary dwarfism. The effect of intravenous administration of ghrelin on the release of GH and other adenohypophyseal hormones was investigated in German shepherd dogs with congenital combined pituitary hormone deficiency and in healthy Beagles. Analysis of the maximal increment (i.e. difference between pre- and maximal post-ghrelin plasma hormone concentration) indicated that the GH response was significantly lower in the dwarf dogs compared with the healthy dogs. In none of the pituitary dwarfs, the ghrelin-induced plasma GH concentration exceeded 5 microg/l at any time. However, this was also true for 3 healthy dogs. In all dogs, ghrelin administration did not affect the plasma concentrations of ACTH, cortisol, TSH, LH and PRL . Thus, while a ghrelin-induced plasma GH concentration above 5 microg/l excludes GH deficiency, false-negative results may occur.  相似文献   

Science policy. The payoff of federal R&D: iPod, Google, and Human Genome Project     

Lane E  Ham B 《Science (New York, N.Y.)》2012,336(6080):433

  相似文献   

用于暗管排水的合成外包料     

丁昆仑 《灌溉排水学报》1988,(4)

<正> 过去,一直采用玻璃纤维和玻璃纤维布作为外包料,但是,很容易发生堵塞和阻塞(指细粒等沉积而使透水性下降)。尤其是粘粒或粉粒含量高,有机物、粹屑多或存在有产生铁锈危险等的土壤中,更是如此。对于其它的材料也进行了尝试,但由于各种原因,并没有得到承认。稻草席曾长期得到成功的运用,但已经被椰子纤维外包料代替。其原因可能是草席生产下降,以及椰子纤维有其更好的特性,如更小的孔隙等。稻草席  相似文献   

Surgical treatment of disk-associated wobbler syndrome by a distractable vertebral titanium cage in seven dogs     

De Decker S  Caemaert J  Tshamala MC  Gielen IM  Van Bree HJ  Bosmans T  Wegge B  Van Ham LM 《Veterinary surgery : VS》2011,40(5):544-554

Objective: To evaluate a distractable titanium cage for the treatment of disk‐associated wobbler syndrome (DAWS). Study Design: Prospective study. Animals: Dogs (n=7) with DAWS. Methods: After total discectomy of C5–C6 and C6–C7, the median part of the vertebral body of C6 was removed with preservation of the lateral walls and dorsal cortex. The removed cancellous bone was collected. The implant was placed in the bony defect of C6. After placement, the titanium cage was distracted and affixed by 4 screws. Finally, the implant was filled and covered with cancellous bone. Dogs had follow‐up examinations at 1, 3, 6, 12, and 24 months. Six months after surgery, cervical radiographs and computed tomography (CT) were performed. Results: Although no intraoperative complications occurred, correct placement of the cage was technically challenging. Revision surgery was necessary in 2 dogs because of implant loosening and aggravation of vertebral tilting. All dogs improved after discharge from the hospital. In 1 dog, recurrence of clinical signs caused by articular facet proliferation at an adjacent intervertebral disk space occurred. Radiographs at 6 months demonstrated cage subsidence in 4 dogs. In all dogs, CT was suggestive for fusion of the bone graft with the vertebral body. Conclusions: Although results are promising, technical adaptations will be necessary to make this specific surgical technique, designed for humans, suitable for routine use in dogs.  相似文献