方法

objective to evaluate early signs of avascular necrosis of femoral head in adult by ct and to guide clinical treatment.methods the cases with suspicious diagnose of anfh were scaned in the both hip joints by x ray and ct to find the early signs of anfh with ct.results early signs of anfh using ct showed that, in 38 femoral heads 31 cases, there were radiate star shape of high density osteosclerosis of the trabeculae in 13 femoral head.twenty five femoral heads showed osteosclerosis and trabeculae structure disappearing and vague,incoordinately low ostedensity area and cyst change.there were fracture under the cartilage and light subsid in 5 cases.the cases in stage ⅰwere given decompression, while the pationtsresul in stageⅱand stageⅲ were given decompression and ostetransplant.conclusion ct results show that the sign of the high osteodensity and low osteodensity and cyst change can disply early anfh.

摘 要］目的：探讨成人股骨头缺血性坏死的早期ct征象并指导临床治疗。方法：对临床疑诊anfh的全部病例均行x线平片及ct检查，分析anfh的早期ct征象。结果：早期anfh的ct表现：31例38个股骨头，其中13个股骨头骨小梁呈放射状高密度的"星状征"，骨小梁境界清楚、锐利，属ⅰ期；25个股骨头表现为骨硬化，骨小梁结构消失、模糊不清，骨密度减低及囊性改变，属ⅱ期；并有5个股骨头在ⅱ期影像学改变基础上出现软骨下骨折及轻微塌陷，属ⅲ期。治疗结果：ⅰ期行钻孔髓内减压术，ⅱ、ⅲ期行钻孔减压植骨术。

This paper mainly discusses the overset mesh pre-processing technology, and supplies a new efficient and robust hole-cutting algorithm applied in the overset mesh preprocessing, which is based on maze algorithm and can be easily implemented with low complexity.

本文主要讨论重叠网格预处理方法，并提出迷路算法应用于"挖洞"过程，为重叠网格预处理提供了高效、可靠的"挖洞"方法，算法复杂度低，实现简单，健壮性好；在多层次嵌套重叠方面，引入了重叠网格主从关系图有效解决多层次嵌套重叠带来的问题；在提高找重效率方面，建立基于网格的kd树加快了找重过程。

Objective:To study the immunologic changes in mice model with spleen deficiency caused by senna folia purgation or overstrain.

目的：研究番泻叶泻下与劳倦过度单复因素脾虚模型在免疫学方面的改变。方法：通过免疫学8 项指标的改变分析番泻叶泻下与劳倦过度单、复因素脾虚造模方法的优劣。

The medullary index and scale pattern of straight guard hair from the hack, abdomen, neck and hip of large indian civet, small Indian civet and masked palm civet was stduied by scanning electronic microscope and polarizing microscope.

方法］应用扫描电镜及偏振光显微镜对大灵猫、小灵猫和果子狸的背部、腹部、颈部和臀部直针毛的毛髓质指数和鳞片花纹类型进行研究。

objectiveto evaluate the result of using rectangular advacement flaps for repairing the eyelid defects at the edges of palpebra.methodswe have used rectangular or double rectangular advacement flaps to repair the defects of theantieror margin of eyelid in 36 cases.to repair the posterior margin defects ,when the defects of thetarsal plates were shorter than 5mm,the tarsal plates were closed directly , longer than 5mm ,sliding tarsal palpebral conjunctive flaps were to be used.resultsin 36 cases all of the flaps were survived with primary healing, slight scar, no absence of eyelashes, no notch deformity at the edge of palpebra, no trichiasis.

目的：探讨应用矩形推进皮瓣修复睑缘眼睑缺损的效果。方法：对36例睑缘肿物切除的眼睑缺损患者，采用矩形或双矩形推进皮瓣修复眼睑前层缺损。眼睑后层睑板缺损小于5mm者，采用直接缝合法；睑板缺损大于5mm者，采用睑板睑结膜瓣移行法。结果：36例患者皮瓣全部成活，切口ⅰ期愈合，手术瘢痕轻微﹑睫毛无缺失﹑无倒睫﹑睑缘圆滑无切迹畸形。

Statistic analysis was made based on the parallel surface observation data of 2006 to 2007, and Excel 2000 software was used to draw diagrams.

方法］使用2006~2007年郑州农业气象试验田的地面平行观测资料，并利用Excel 2000软件绘制图表，进行统计分析。

In single acute toxicity test and joint toxicity test,the acute toxicity and joint toxicity of heavy metals Cu2+ and Cd2+ to paramecium was studied.

方法］通过单一急性毒性试验和联合毒性试验，研究了金属离子Cu2+和Cd2+对草履虫的急性毒性和联合毒性。

Paratyphoid Fever ;; Epidemiology ;; Disease Notification ;; Students ;; Medical Records ;; Methods ;; Headache

副伤寒；；流行病学；；疾病报告；；学生；；病案；；方法；；头痛

Genetic polymorphism and aggregation of seven sheep populations, including three breeding sheep populations (breeding F1, F2 and Bamei mutton sheep), three introduced mutton sheep breeds (Texel, Dorset and German Merino sheep) and one local female parent population, were assessed using 10 microsatellite markers.

方法］利用10个微卫星标记对3个选育绵羊群体（选育级进1代、级进2代、巴美肉羊），3个引进肉羊品种（德克塞尔、无角道塞特、德国美利奴）和1个当地母本群体进行微卫星标记鉴定，分析这7个绵羊群体的多态性和遗传聚集性。

From the agro-climatic statistics point of view, using the application of stepwise regression, least squares, the moving average method, the correlation coefficient, partial regression coefficient method to determine the critical period of climate sorghum and climate key factor influencing sorghum output.

方法］从农业气候统计学角度，应用逐步回归、最小二乘法、滑动平均法、相关系数、偏回归系数方法，确定高粱气候关键期和影响高粱产量的气候关键因子。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。