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Introduction Performance and Cultivation Techniques of Himrod Grape Planted in Tianjin
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作者 黄建全 聂松青 +2 位作者 温晓敏 路凤珍 田淑芬 《Agricultural Science & Technology》 CAS 2017年第6期999-1001,共3页
After six years of Himrod grape regional trial, the Himrod had very early- ripening precocity, stable flower bud differentiation, good fruit quality and great resis- tance to diseases, which could be a moderate develo... After six years of Himrod grape regional trial, the Himrod had very early- ripening precocity, stable flower bud differentiation, good fruit quality and great resis- tance to diseases, which could be a moderate development grape variety in Tianjin. The introduction performance cultivation techniques of Himrod grape were summa- rized. 展开更多
关键词 GRAPE Himrod Introduction performance ADAPTABILITY Cultivation tech- niques
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微胶囊制备技术及其聚合物基功能复合材料研究与应用进展 被引量:10
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作者 崔锦峰 张亚斌 +3 位作者 张静 慕波 郭军红 杨保平 《涂料工业》 CAS CSCD 北大核心 2018年第11期15-22,共8页
介绍了微胶囊中芯材与壁材的结构,以及对制备微胶囊所需条件和常用于制备微胶囊的芯材与壁材的物质。分析了常用的原位聚合法、界面聚合法、乳液聚合法、Pickering乳液聚合法、悬浮聚合法、种子微悬浮聚合法、掺杂种子微悬浮聚合法、聚... 介绍了微胶囊中芯材与壁材的结构,以及对制备微胶囊所需条件和常用于制备微胶囊的芯材与壁材的物质。分析了常用的原位聚合法、界面聚合法、乳液聚合法、Pickering乳液聚合法、悬浮聚合法、种子微悬浮聚合法、掺杂种子微悬浮聚合法、聚合诱导相分离法和物理制备法共9种方法。介绍了微胶囊在相变储能、隐身、自润滑、自修复等功能材料中的应用。展望了微胶囊的应用前景。 展开更多
关键词 微胶囊 聚合物 功能化 复合材料 制备技术 研究进展
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天然D-α-维生素E 被引量:10
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作者 邵斌 《中国食品添加剂》 CAS 2000年第2期78-83,共6页
天然D-α-维生素E是一种高品质的天然维生素E.本文着重介绍天然维生素E的分类、天然D-α-维生素E与合成维生素的差异以及天然D-α-维生素E先进的制备技术;国内外天然维生素E技术水平的差异;新昌制药厂在研制开发天然... 天然D-α-维生素E是一种高品质的天然维生素E.本文着重介绍天然维生素E的分类、天然D-α-维生素E与合成维生素的差异以及天然D-α-维生素E先进的制备技术;国内外天然维生素E技术水平的差异;新昌制药厂在研制开发天然D-α-维生素E上所做的工作. 展开更多
关键词 天然D-α-维生素E 天然维生素E 合成维生素E 制备技术 食品添加剂
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Preliminary study of a dispersed fringe type sensing system 被引量:3
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作者 Yong Zhang Gen-Rong Liu +3 位作者 Yue-Fei Wang Ye-Ping Li Ya-Jun Zhang Liang Zhan-g 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2009年第8期945-952,共8页
Telescopes with large aspherical primary mirrors collect more light and are therefore sought after by astronomers. Instead of using a single large one-piece mirror, smaller segments can be assembled into a useable tel... Telescopes with large aspherical primary mirrors collect more light and are therefore sought after by astronomers. Instead of using a single large one-piece mirror, smaller segments can be assembled into a useable telescopic primary. Because the segments must fit together to create the effect of a single mirror, segmented optics present unique challenges to the fabrication and testing that are absent in monolithic optics. A dispersed fringe sensor (DFS) using a broadband point source is an efficient method for cophasing and is also highly automated and robust. Unlike the widely adopted Shack- Hartmann Wavefront sensor and curvature wavefront sensor with edge sensors for calibration of relative pistons, DFS can estimate the piston between segments by only using the spectrum formed by the transmissive grating's dispersion, and therefore can replace the edge sensors, which are difficult to calibrate. We introduce the theory of the DFS and Dispersed Hartmann Sensor (DHS) for further utilization of the coarse phasing method of DFS. According to the theory, we bring out the preliminary system design of the cophasing experimental system based on DFS and DHS which is now established in our institute. Finally, a summary is reached. 展开更多
关键词 INSTRUMENTATION active optics -- techniques image processing -- tech- niques spectroscopic -- telescope cophasing sensor
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Effects of Skeletonized versus Pedicled Internal Thoracic Artery Grafts on Free Flow Capacity during Bypass
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作者 黄畦 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2000年第4期308-310,共3页
The free flow of skeletonized ITA grafts was compared with that of pedicled ITA grafts. One hundred patients with coronary artery diseases underwent elective CABG. In the group Ⅰ(n= 50), the left ITA was dissected u... The free flow of skeletonized ITA grafts was compared with that of pedicled ITA grafts. One hundred patients with coronary artery diseases underwent elective CABG. In the group Ⅰ(n= 50), the left ITA was dissected using the skeletonization technique. In the group Ⅱ(n=50), the ITA was harvested as a pedicled graft. Free flow of the ITA was recorded before and 15 min after in- traluminal application of diluted papaverine. Mean arterial pressure was maintained at 9. 31 kPa (70 mmHg). The results showed that before the application of papaverine, free flow of skeletonized and pedicled ITA grafts was identical between the two groups. After treatment with papaverine, the maximum free flow was significantly higher in the skeletonized ITA's in the group Ⅰ(199. 3±69. 6 ml/min) than in the group Ⅱ(145. 7±70. 3 ml/min, P<0. 05). There was on significant differ- ence between the free flow after dilatation of the left and right ITA in the group Ⅰ (left 199. 3±69. 6 ml/mm, right 198. 9±61. 8 ml/mm, respectively). It was concluded that preparation of the ITA with the skeletonization technique resulted in significantly higher free flow capacity than in pedicled grafts and would improve the results of arterial revascularization. The complication rate seems to be lower than with the conventional method. 展开更多
关键词 coronary surgery internal thoracic artery SKELETONIZATION vessel preparation tech- nique
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Surgical correction of postductal aortic coarctation in 40 adolescents and adults: A ten-year single institution experience
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作者 李欣 杨珏 +2 位作者 于长江 卿洪琨 范瑞新 《South China Journal of Cardiology》 CAS 2017年第2期106-113,共8页
Background In clinical practice, there are different surgical approaches for postductal coarctation of the aor- ta (CoA), with their advantages and disadvantages. Limited studies have reported the surgical outcomes ... Background In clinical practice, there are different surgical approaches for postductal coarctation of the aor- ta (CoA), with their advantages and disadvantages. Limited studies have reported the surgical outcomes of post- ductal CoA in adolescents and adults. Methods From January 2005 to December 2014, a total of 40 patients aged over 14 years underwent surgical corrections of postductal CoA in our institution. The surgical outcomes as reflected by cardiac function and differences in mean blood pressure of upper and lower extremities both preoper- ative and postoperative were recorded and evaluated. Results Among the 40 patients underwent successful sur- gical corrections, 1 patient complicated by acute aortic dissection and died, while the remainings survived to hos- pital discharge. During the 12-36 month follow-up period, postoperative mean blood pressure differences of upper and lower extremities were significantly reduced as compared with the preoperative data. Postoperative evalu- ation of cardiac function was conducted in all patients with New York Heart Association (NYHA) Ⅰ-Ⅱ. Conclusion For adolescent and adult patients with postductal aortic coarctation, surgical correction is highly recom- mended. Surgical approach should be based on the specific anatomy of the coarctation lesion, concomitant mal- formations, and expected grown-up height. Those complicated with other intracardiac malformations should be treated with extra-anatomical bypass technique and simultaneous surgical correction of CoA, which is effective with desirable postoperative prognosis. 展开更多
关键词 coarctation of the aorta (CoA) congenital heart disease in adult extra-anatomical bypass tech- nique surgical treatment
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