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51.
[教学片段]
生(全体)打开自己制作的powerpoint,有感情朗诵诗歌《你是这样的人》。
出示《十里长街送总理》的主题网站,其中有视频、音乐及图片。 相似文献
52.
[目的]评价晶状体囊袋张力环(capsular tension ring,CTR)在外伤性白内障伴晶状体悬韧带断裂手术中的应用.[方法] 7例(7只眼)外伤性白内障伴晶状体悬韧带部分断裂,在白内障手术连续环形撕囊术(CCC)后植入CTR,然后施行超声乳化白内障吸除及后房人工晶状体(PC-IOL)囊袋内植入.[结果]术后7只眼PC-IOL均处于正位,无倾斜或明显偏斜.随访6~12个月,最佳矫正视力2眼0.5,3眼0.6和2眼0.8,未见有何严重手术并发症.[结论]外伤性白内障伴晶状体悬韧带断裂患者,术中应用CTR有利于手操作,防止术后PC-IOL偏位,可加快视力的恢复.CTR对外伤性白内障伴晶状体悬韧带断裂者手术是一有用的辅助工具. 相似文献
53.
Video-assisted thoracoscopic surgery (VATS) for bilateral primary spontaneous pneumothorax 总被引:3,自引:0,他引:3
Chen YJ Luh SP Hsu KY Chen CR Tsao TC Chen JY 《Journal of Zhejiang University. Science. B》2008,9(4):335-340
Objective:To review our experience of the treatment of bilateral primary spontaneous pneumothorax (PSP) by video-assisted thoracoscopic surgery (VATS). Materials and methods: Retrospective chart review was followed by an on-clinic or telephone interview. Patients were cared for by one thoracic surgeon in four medical centers or community hospitals in Northern and Central Taiwan. Thirteen patients with bilateral PSP underwent bilateral VATS simultaneously or sequentially from July 1994 to December 2005. Results: Twelve males and one female, with age ranging from 15 to 36 years (mean 23.1 years), were treated with VATS for bilateral PSP, under the indications of bilateral pneumothoracis simultaneously (n=4) or sequentially (n=9). The interval between the first and second contra-lateral VATS procedure for non-simultaneous PSP patients ranged from 7 d to 6 years. Eleven of 13 patients (84.6%) had prominent pulmonary bullae/blebs, and underwent bullae resection with mechanical or chemical pleurodesis. The mean operative time was (45.6±18.3) min (range 25-96 min) and (120.6±28.7) min (range 84-166 min) respectively for the non-simultaneous (second VATS for the recurrence of contralateral side after first VATS) and simultaneous (bilateral VATS in one operation) procedures. There was no postoperative mortality. However, prolonged air leakage (>7 d) occurred in one patient (7.7%) who recovered after conservative treatment. The mean duration of chest tube drainage was 3.1 d and the median follow up period was 3.4 years. Conclusions: VATS is a safe and effective procedure in the treatment of bilateral PSP. Bilateral VATS is only recommended for patients with simultaneously bilateral PSP, because the incidence of recurrence, even with visible bullae, was not so high in my group and in some previous literature. Bilateral VATS in a supine position should only be used in selective cases, because of possible pleural adhesion or hidden bullae on the posterior side. 相似文献
54.
妊娠高血压综合征可导致孕产妇和围产儿死亡率增高。妊娠高血压综合征患者出现心衰症状未能得到有效控制,应及时终止妊娠,其中剖宫产围麻醉期处理对母婴安全尤其显得重要。现将我院2005.10~2007.3月对12例重度妊娠高血压综合征并心衰患者实施急诊剖宫产手术的麻醉处理报告如下。 相似文献
55.
在腹部创伤中 ,肝破裂是较常见的 .特别是随着交通业的不断发展 ,外伤性肝破裂的发病率越来越高 ,虽然多数患者经手术治疗得以康复 ,但少数伤员往往死于严重的致命伤 .本文对我们近 10年来收治的 36例外伤性肝破裂诊治体会进行总结 .1 临床资料1.1 一般资料 本组 36例 ,其中男 2 7例 ,女 9例 .年龄 7~ 5 2岁 ,平均 2 9岁 .受伤原因为交通事故 2 1例 ,挤压伤 6例 ,刀戳伤 5例 ,坠跌伤 3例 ,枪弹伤 (鸟铳自伤 ) 1例 .闭合性伤 30例 ,开放性伤 6例 .合并其他脏器伤者 2 9例 ,合并伤发生率 80 .6 % ,其中合并脑外伤 11例 ,肺挫伤、气胸 8… 相似文献
56.
Novel high torque bearingless two-sided rotary ultrasonic motor 总被引:3,自引:0,他引:3
LI Xia CHEN Wei-shan XIE Tao LIU Jun-kao 《浙江大学学报(A卷英文版)》2007,8(5):786-792
Applications are limited at present because the currently available ultrasonic motors (USMs) do not provide suffi-ciently high torque and power. The conventional travelling-wave USM needs the bearing to support, which required lubricant. To solve the above problem, a bearingless travelling-wave USM is designed. First, a novel structure of the two-sided USM consisting of a two-sided teeth stator and two disk-type rotors is designed. And the excitation principle of the two-sided travelling-wave USM is analyzed. Then, using ANSYS software, we set up the model of the stator to predict the excitation frequency and modal response of the stator. The shape of the vibration mode was obtained. Last, the load characteristics of the USM are measured using ex-perimental method. The maximum stall torque and the no-load speed were obtained. The results showed that the characteristics of the two-sided USM are better than those of the conventional one-sided USM. 相似文献
57.
针对传统硬度测量方法的局限性,阐述了超声波、电涡流等无损检测手段进行机械零部件表面硬度测量的系统和原理,并对无损硬度检测方法的应用进行了简单介绍,最后得出无损检测表面硬度是优势。 相似文献
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