蛭間 的英文怎麼說
中文拼音 [zhìjiān]
蛭間
英文
hiruma-
Based on the structure and function analysis of hirudin, a potent thrombin inhibitor, and some platelet aggregation inhibitors, which contain the recognition sequence argglyasp as their functional motif, two chimeric antithrombotic molecules were designed by introducing rgd sequence to hirudin cterminus. these chimera genes were constructed by pcr and inserted into the expression vector pet21a, the constructs were confirmed by restriction enzyme digestion and dna sequence analysis. these recombinant plasmids were transformed into
經限制酶消化和dna序列分析，證明兩種重組質粒與設計完全一致。由於rgd -水蛭素嵌合基因上游連接了金黃色葡萄球菌蛋白a spa的信號肽序列，在iptg誘導下兩種嵌合分子都獲得了分泌表達，表達產物主要集中在細胞周質空間。Hygienic standard for vermiculite dust in the air of workplace
車間空氣中蛭石粉塵衛生標準The tlow distance and gelating time of the nanocomposites were shorter than that of the pure pf, which meet the standard of the pf used in frictional materials. compared to the pure pf, the silica7pf nanocomposites exhibited excellent heat stability only in nitrogen atmosphere, however, so do vermiculite / pf nanocomposites in both nitrogen and air atmospheres. compared to the brake pad based pf resin, the wear rate of the present one based with silica / pf nanocomposite decreased obviously, especially in high temperature
用烷基銨ctab和kh - 560對蛭石進行有機化處理，通過原位聚合法制備了酚醛樹脂接枝改性sio _ 2納米復合材料、酚醛樹脂kh - 560改性sio _ 2納米復合材料、酚醛樹脂ctab改性蛭石納米復合材料、酚醛樹脂/ kh . 560改性蛭石納米復合材料，採用ftir 、 xrd 、 afm和tg分析與流動距離、凝膠化時間的測試，研究了所制備的酚醛樹酯納米復合材料的結構、固化行為和熱穩定性能，並研究了以酚醛樹酯納米復合材料為基體的剎車片摩擦磨損性能。As the content of vermiculite minerals increased, the content of the " intercalated " shape, in which crystal gallery breadth was about of 40nm, also increased. in the curing reaction processing of polybenzoxazine / vermiculite hybrid nanocomposites intercalated with bisphenol a type precursor. according to the content of vermiculite minerals, while different shape of crystal was forming, these crystals were retarding the heat ring - opening polymerization of bisphenol a type precursors in the nanocomposites
通過對雙酚a型ben蛭石納米插層物固化過程的分析：不同蛭石含量的插層物，在形成不同納米分散狀態固化結構的過程中，蛭石晶片對雙酚a型ben的熱開環聚合有明顯不同的阻礙作用，蛭石含量為3的插層物160的凝膠化時間較純樹脂的延長約7min ，活化能高約8kj mol ，固化反應熱晗低約14j g ，使得固化物的固化程度較純樹脂低約10 ，阻礙作用最大，其它含量的次之。From the aspect of modification of vermiculite and adsorptive characteristics of environmental pollutants, this article has systematically summarized the pillared method and modification of vermiculite, the distribution of organic pillared agent in the interlayer of vermiculite, the pillared mechanism of vermiculite and the characteristics of vermiculite adsorbing heavy metal ions and toxic organic pollutants
本文從蛭石礦物的柱撐改性和對環境污染物的吸附性入手，系統綜述了蛭石礦物的柱撐方法及改進方法；有機柱化劑在蛭石礦物層間域中的排布；蛭石礦物的柱撐機理以及蛭石礦物對重金屬離子和毒害性有機污染物吸附特性。The results indicate that the configurations of hdtma ( superscript + ) refer to paraffin type monolayer, paraffin type bilayer and lateral bilayer, and that the configuration types decrease while the values of interlayer spaces increase with the rising of temperature and intensifying of mechanical force in different intercalation means
此外，隨著處理方法中溫度、機械力的由弱到強，十六烷基三甲基銨離子在蛭石層間的排布模式由多樣向單一轉變，插層層間距也有增大的趨勢。It showed that the polybenzoxazine precursor had intercalated into vermiculite layers. cured the composites, the diffraction peak of vermiculite d001 in xrd spectrum disappeared. according to atomic force microscopy ( afm ) images, in the cured - composites, when the content of vermiculite minerals was less of 3 %, most crystals were cleave d into the " exfoliated " shape in which crystal gallery breadth was about of 113nm
Dfm分析表明：在蛭石含量低於3時，形成主要以剝離狀納米分散為主的固化結構，相鄰蛭石晶片間距可達到113nm ，隨著蛭石含量的增多，逐漸形成以插層狀納米分散為主的固化結構，相鄰蛭石晶片間距在40nm左右。3. about horticultural vermiculite, its main function to increase the ventilate air and the bibulous ability. because of usage time that vermiculite is breakable, along with the extension of time usage, easily make lie the quality fine
因其易碎，隨著使用時間的延長，容易使介質緻密而失去通氣性和保水性，所以粗的蛭石比細的使用時間長，且效果好。分享友人