Poly is a kind of membrane material with excellent characteristics, in order to improve its surface hydrophilicity, so as to increase its antipollution ability, surface modification of PVDF hollow fiber porous membrane has been studied, on the bases of reviewing all kinds of modification methods, the modification method of chemical grafting onto hollow fiber membrane surface was determined.

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In order to provide scientific basis and methods for study of walnut seedlings rapid propagation,survival ratio,scion's growth and efficiency of grafting were investigated and determined,efficiency of the new grafting method of walnut that it is single bud green branch grafting compared with efficiency of traditional grafting methods bud grafting and shield budding.

為給核桃優(yōu)質(zhì)苗木的快速繁育研究提供科學(xué)的依據(jù)和方法，就核桃嫁接的成活率又色又黄又爽app2020、接穗的高生長(zhǎng)黄色性爱小视频、接穗的粗生長(zhǎng)和嫁接的工作效率進(jìn)行了調(diào)查和觀測(cè)，比較分析了核桃嫁接新方法——單芽綠枝接與傳統(tǒng)嫁接方法——"工"形芽接和嵌芽接的嫁接效果毛片A片一级视频免费看。

It was observed that the influence of bud and its position on the healing process of grafting unions using hardwood sectioning method, and found that:(1) bud of a scion and its position to the graft unions have no influence on callusing formation of the isolation layers, and the early differentiation of cambia;(2) a scion bud closer to the grafting union would promote the formation of more compacted callus cells and the earlier formation of callus bridges;(3) conduit differentiation in grafting unions of lower-bud scions was later than that of other treatments.

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Finally, the grafting polymerization of textile materials initiated by microwave low temperature plasma was conducted. Knitted cotton fabric was grafted by AMPS first, then knitted cotton and terylene/cotton fabrics were grafted with AMPS/NIPA dualistic monomers respectively. By means of grafting polymerization, the P dualisticintelligent hydrogel was added to textile.The influences of the factors on add-on, such as treatment time and power of plasma, concentrations of crosslinking agent and total monomers, proportion of AMPS, polymerizing temperature and time etc, was studied fully. The optimal conditions of grafting polymerization initiated by microwave low temperature plasma were determined by orthogonal design, variance analysis and mathematical statistics method so as to analyze the main influencing factors. Then swelling/deswelling kinetics, temperature-sensitivity and pH-sensitivity of grafted textile were studied. The performance indexes of hydrostatic pressure, moisture permeability and bursting strength of the knitted cotton and terylene/cotton fabrics before and after grafting were compared and evaluated synthetically.

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Most of the compatibilizers in using with polypropylene extrusion grafting are usually poisonous, unsteady, odoriferous and big loss of strength of the PP resin. In view of these defects,a kind of high activity compatilizer was prepared with the method of bulk graft copolymerization.

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In the part 3 of the thesis, we develep the animal model using the method of part 2 of the thesis. 6weeks later, Clearance of focal lesion in necrosis femoral head is performed. Cancellous bone adding rhBMP〓 is implanted in the space after sequestrum cleaning. Imagical在线观看美女一区、morphology and biomechanics study show its result is superior to traditional cancellous bone grafting.

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Here, based on the summary of the treatment of 60 cases with thermal injury in the upper limb, it is suggested that the most important should be the accurate diagnosis of burns, prompt operation with the method of skin-grafting (free flap skin-grafting or flap skin-grafting), and more skille...

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On the stock experiments, the followings are studied: the daily changes of sap, the changes of sap during the grafting period, the differences among the stocks and the controlling of sap etc; The influence of temperature and humidity on grafting, the effective time of grafting and grafting method are studied on the grafting and callusing experiment; It could got a deep and whole knowledge of which how factors affect the healing process of grafting by studying the influential mechanism of them, and it could provide some physiological and biochemical bases for this kind of study, so that this kind of study should carry out deeply and systematically.

在砧木方面女人18特级一级毛片免费视频，研究了傷流日變化和嫁接時(shí)期變化動(dòng)態(tài)、砧木間傷流量的差異男人的天堂人人摸人人操、傷流控制等黄色视频免费A。在嫁接愈合方面研究了濕度、溫度的作用精品欧美在线精品欧美在线，嫁接有效時(shí)期panjinlian5.com，嫁接方法等。通過(guò)研究各種影響因子的作用機(jī)制日韩另类制服丝袜自拍视频在线，可以對(duì)嫁接愈合過(guò)程與各種因子的關(guān)系有一個(gè)更深入而全面的認(rèn)識(shí)亚洲AAA久久，為此方面的研究提供一些生理生化方面的理論依據(jù)，以便對(duì)其進(jìn)行系統(tǒng)而深入的研究碰碰视频国产。

In order to provide scientific basis and methods for study of walnut seedlings rapid propagation,survival ratio,scion's growth and efficiency of grafting were investigated and determined,efficiency of the new grafting method of walnut that it is single bud green branch grafting compared with efficiency of traditional grafting methods bud grafting and shield budding.

為給核桃優(yōu)質(zhì)苗木的快速繁育研究提供科學(xué)的依據(jù)和方法国产对白自拍小视频免费观看在线，就核桃嫁接的成活率、接穗的高生長(zhǎng)久久久性交、接穗的粗生長(zhǎng)和嫁接的工作效率進(jìn)行了調(diào)查和觀測(cè)在线视频插，比較分析了核桃嫁接新方法——單芽綠枝接與傳統(tǒng)嫁接方法——&工&形芽接和嵌芽接的嫁接效果。

Plasma\|grafting modification of poly fibers surface by silent discharge has provided a novel method of improving dyeing properties of polyester fabrics.

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