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中国马铃薯晚疫病监测预警系统的研制 总被引:4,自引:0,他引:4
将植保知识、Web应用技术、人工智能、地理信息系统(GIS)、决策支持系统(DSS)等有机结合起来,构建了中国马铃薯晚疫病监测预警系统(China-blight),实现了对中国范围内的马铃薯晚疫病进行监测、预测、预警并提供化学防治决策的功能,该系统能够实时接收用户提交的疫情信息并通过多级Web地图直观显示出来,使用户能及时掌握疫病发生程度、动态及地域分布,为薯农及时预防马铃薯晚疫病提供了信息。 相似文献
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Jensen TB Toft N Bonde MK Kongsted AG Kristensen AR Sørensen JT 《Preventive veterinary medicine》2012,103(1):31-37
Mortality of sows is a major problem for pig production worldwide. In this study, we used hierarchical multivariable logistic analyses to investigate different risk factors for mortality at the sow and herd level in herds with group-housed pregnant sows. Data included 3652 pregnant and 1266 lactating sows from 34 sow herds. A clinical examination for 16 clinical signs was carried out for each sow, and information about 16 herd related factors was obtained by interviews. Farm records were used to obtain information about whether or not sows died suddenly or were euthanized within 3 months after the clinical examination. Factors increasing the risk of sow mortality in the gestation unit were solid pen floors (OR = 1.87), presence of vulva bites (OR = 1.73) and unwillingness to stand when approached (OR = 1.62). Factors increasing the risk of sow mortality in the lactation unit were pale vulva color (OR = 12.69), body leanness (OR = 4.11), and presence of shoulder ulcers (OR = 2.89). The estimated between herd variation was small. Thus, the findings for the sow level variables may be generally applicable for sows in herds with group housed systems. 相似文献
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V. Palus B. Bladon T. Brazil G. B. Cherubini S. E. Powell T. R. C. Greet C. M. Marr 《Equine Veterinary Education》2012,24(8):415-422
This retrospective study summarises the case details, presenting signs, management and outcome in cases of temporohyoid osteoarthropathy (THO) and describes the findings of diagnostic imaging modalities. The condition appears to be relatively rare in Europe and the objective of this study is to make clinicians aware that THO can have a range of various neurological and clinical presentations. The records of 2 referral equine practices in England were reviewed and 7 horses with THO diagnosed on guttural pouch endoscopy indentified. The clinical and neurological signs, diagnostic procedures, treatment and outcomes were reviewed. Although small, this group is the largest case series of THO from Europe. One horse was a yearling, whereas THO is generally considered usually to affect middle aged and older horses. Computed tomography was used to confirm the diagnosis and demonstrated stylohyoid bone fractures in 2 cases while there was mild increased radionuclide uptake in one of 2 cases undergoing nuclear scintigraphy. Treatment is still controversial, although ceratohyoidectomy led to complete resolution of signs in 2 of 5 cases thus treated and improvement in the other 3. One horse with mild signs treated with antimicrobials and nonsteroidal anti‐inflammatory drugs made a full recovery while another, presented with head shaking and managed with a phased exercise programme, improved but did not resolve completely. 相似文献
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针对高速公路上汽车爆胎事故频繁发生的现象,通过对轮胎生热机理、轮胎爆裂机理的研究,阐述轮胎红外测温防爆预警系统的结构、基本原理,完成轮胎红外测温防爆预警系统的硬件和软件设计。实验结果表明该系统可以实时监测轮胎表面温度的分布情况,当温度过高时自动报警,帮助驾驶员合理使用轮胎,实现轮胎防爆预警功能,避免因此而造成人员和财产损失,为车辆安全行驶,避免重大交通安全事故具有很大的社会和经济意义。研究表明,该系统对防止汽车爆胎的发生有着实际的应用价值。 相似文献
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Summary Primary hypothyroidism and partial primary adrenocortical deficiency (isolated glucocorticoid deficiency) were diagnosed in an 8‐year‐old spayed female boxer dog, presented because of progressive symmetrical truncal alopecia, lethargy, and intolerance to cold. The diagnosis was based upon the combination of low, non‐TSH‐responsive concentrations of plasma thyroxine and low urinary excretion of corticoids together with high plasma concentrations of ACTH. Normal suppressibility of ACTH concentrations by a low dose of dexamethasone indicated an intact feedback system. Plasma growth hormone levels were elevated, most probably because somatostatin release was depressed by the glucocorticoid deficiency. The dog improved during oral replacement therapy with thyroxine until death ensued after 9 months as a result of intercurrent disease. Autopsy revealed thyroid atrophy and lymphocytic adrenalitis with complete destruction of the zona fasciculata and zona reticularis of the adrenal cortex. The combination of primary hypothyroidism and primary adrenocortical deficiency in this dog is identical to the entity known as type II polyglandular autoimmunity or Schmidt's syndrome in humans. The adrenocortical insufficiency remained confined to glucocorticoid deficiency during the observation period; on no occasion did electrolyte concentrations in the plasma reach values suggestive of mineralocorticoid deficiency. 相似文献