Pocket technique or pocket technique combined with modified orbital rim anchorage for the replacement of a prolapsed gland of the third eyelid in dogs: 353 dogs

The aim of this retrospective study was to evaluate the results obtained in 353 dogs (420 eyes) using two different surgical techniques for correction of a prolapsed gland of the third eyelid: the Morgan's pocket technique and a technique combining Morgan's approach with a slightly modified periosteal anchoring technique of Stanley and Kaswan. The pocket technique was used in 234 eyes and the combined technique in 186 eyes. Successful repositioning was obtained in 95% of all cases, with recurrence occurring in 5%. The recurrence rate in large breed dogs such as the English Bulldog and Boxer was lower with the combined technique than with the pocket technique.     

西南少数民族的禾剪

关于西南民族地区特色农具“禾剪”,学界对其源流、分布、形制、材料及工艺已有较多论述。本文则梳理了当地禾剪的各种具体用途,强调了禾剪与传统糯稻栽培之间的紧密联系,再将其置于整个民族稻作文化体系中去研究,并进一步揭示稻作文化中的族际差异,包括汉族粘稻(非糯稻)文化与西南少数民族糯稻文化之间成系统的分化。总的来说,禾剪是高度适应于西南地区自然环境特点、作物性状特点和民族文化特点的收割工具,当中蕴含着丰富的生态信息、历史信息和文化信息。     

Capsicum oleoresin: development of an in-soil repellent for pocket gophers

A pre- and post-monitoring study was conducted of the potential use of capsicum oleoresin as an in-soil repellent for northern pocket gophers (Thomomys talpoides). Pocket gophers were captured in irrigated alfalfa (Medicago sativa L), affixed with radio transmitters, and monitored daily for location. Six plots (4.87 x 4.87 m) each were randomly assigned to capsicum oleoresin and soybean oil treatments; these were set up based upon the centers of initial core areas of gophers. Mean (+/-SD) volumes of capsicum oleoresin and water and soybean oil and water mixtures (10 + 90 by volume) dispensed onto plots equaled 178.5 (+/-4.7) and 175.7 (+/-14.0) liters, respectively. Movements (m) of the radio-transmitted gophers from plot centers were computed for four daily readings (i.e., 0801-1000, 1101-1300, 1501-1700 and 1801-2000 h). Spectrophotometric analysis of soil samples from capsicum oleoresin plots validated the presence of capsicum on plots and the absence of capsicum on placebo- and off-plot locations. Analysis of variance for movement distances of gophers yielded a Date main effect [F(11, 103) = 2.08, P < or = 0.03] and a Date x Reading (time) interaction [F(32, 299) = 3.21, P < or = 0.01]. Results showed that gophers were located farther from plot centers for the 0801-1000 and 1501-1700 h telemetry readings for < or =3 days post-chemical application-a probable 'disturbance' effect rather than a chemical-induced avoidance. In a prior laboratory study, capsicum oleoresin and soil treatments of 1.5% w/w capsicum caused nearly a 50% decrease in soil contact time by gophers relative to placebo-exposed control animals. This implies that procedural variables warrant revision before abandoning this approach. The potential for soil insertion of repellents as a technique for expelling pocket gophers from territories and some methodological changes for future research of the technique are discussed.     

基于TFM模型的滞留气团数值模拟方法及PIV试验研究

为了研究有压输水管路局部高点处滞流气团的运动特性,寻求更为有效的数值模拟方法,基于双流体模型(TFM)构建滞流气团的两相瞬时流场,并与VOF模型的预测结果进行对比分析.通过粒子图像测速系统(PIV)对滞流气团局部流场的速度分布进行测量,进一步验证前期构建数值模拟方法的合理性.结果表明:局部高点气团随水流下倾运动中,气团前端水流极大的速度梯度使区域流态紊乱导致气团表面张力无法维持气团形状而发生破碎;VOF模型无法模拟气液两相的相对运动,其预测出的气团运动速度要明显大于实际值;而TFM模型充分考虑了相间动量传递和相对速度的影响,能够更准确地预测滞流气团的流场速度分布和运动特性.     

杂交水稻工程化制种窝眼型孔分选机分选筒设计

为改变传统杂交水稻制种中不育系和恢复系规则化种植,分期收获,效率低,劳动强度大,授粉不均匀,种子质量、产量低的现状,在现有工程化混播制种中急需高效的机械化分选设备。该文通过试验研究的手段,对所设计的窝眼型孔分选机分选筒的运动参数及结构参数进行了研究。结果表明：针对现有不育系籽粒长度不超过5.8 mm,恢复系不小于12 mm时,其分选筒外径设计为130 mm,分选筒转速为30 r/min,窝眼孔径为7 mm,孔深为3 mm情况下,能够杂交水稻种子纯度要求的分选效果。该分选机的设计,为解决工程化混播制种中杂交水稻种子不育系与恢复系的分选、清选提供了基础保障。     

生态文明视域下安徽省城市口袋公园建设的几点思考

口袋公园对于建设人民城市、公园城市具有重要的生态价值,建设口袋公园是从国家到地方推进城市生态文明建设的重要举措。安徽省抓住这一契机,利用口袋公园建设一般性和特殊性的优势,有序推进口袋公园建设,着力解决市民生活的"最后一公里"问题,致力于让市民生活在"生态优""环境好""生活美"的公共空间之中以满足市民美好生活的现实需求。安徽省城市口袋公园建设需要坚持人与自然和谐共生,顺势而为,合理利用口袋公园建设的资源条件;以市民为中心,充分挖掘口袋公园的生态价值;进行主题策划,有效彰显口袋公园建设的文明与活力,做到统筹规划,协同推进。