Transformation into active enzymes occurs as one or more peptide bonds in the zymogen are cleaved.

活化作用即是打斷原分子內(nèi)的一個(gè)或多個(gè)鍵久久本道久久综合伊人。這作用受不同的催化或受的活化型本身的催化。

Second,so called industrial fatty acids,which usually contain functional groups such as hydroxyl,epoxy,or acetylenic bonds,are important industrial ...

本文綜述了近年來(lái)幾種特殊脂肪酸生物合成的基因工程研究進(jìn)展色姑娘天天久久综合网久久天天网。

The surface modification reaction is facile and the molecules are directly attached to the neighboring adatom and rest-atom with the formation of two covalent Si-C bonds at the Si (111)-7×7 surface.

我們的研究結(jié)果表明手机在线一区二区三区免费视频视频，Si（111）-7×7表面上空間分立的硅懸鍵在表面加成反應(yīng)中可以看作為分立的活性表面自由基。

Simultaneity, the adsorption energies of single Si adatom on the H-terminated Si (100) surfaces are specially mapped out in this paper, from which the favorite binding sites and possible diffusion pathways have been achieved. The variety of the diffusion anisotropy with the coverage transforming is obtained. The energy barriers of the adatom diffusion are found to be higher than that on the clean surface, because the H atoms saturate the dangling bonds of the surface Si atoms.

同時(shí)国自产拍在线，本文研究了附加硅原子在理想H-terminated Si(100)表面的沉積擴(kuò)散行為特级性交毛片，計(jì)算得到了一系列沉積點(diǎn)和可能的擴(kuò)散路徑；討論分析了擴(kuò)散行為的各向異性以及氫覆蓋率對(duì)各向異性影響的規(guī)律你懂的福利视频，并且發(fā)現(xiàn)附加硅原子在H-terminated Si(100)表面上的擴(kuò)散勢(shì)壘比在清潔Si(100)表面上的高精品自拍电影网，我們認(rèn)為這主要是因?yàn)闅湓语柡土吮砻嫔瞎柙拥膽覓戽I，提高了擴(kuò)散勢(shì)壘欧美性爱小说图。

Amino-2-methylpropanol was used as the chemical modifying reagent of fatty acids to modify the carboxyl group into nitrogen-containing heterocycle which would effectively prevent the migration of carbon double bonds of the alkenyl in the electron impact source.

以2-氨基－2-甲基－丙醇為脂肪酸的化學(xué)修飾試劑欧美稫利专区，氣相色譜－電子轟擊質(zhì)譜分析葵子油脂肪酸。2-氨基－2-甲基－丙醇將脂肪酸羧基修改為含氮雜環(huán)免费黄片的洗澡，使在EI源中避免了鏈烯基中碳碳雙鍵的移動(dòng)午夜福利精品视频1000入口。

Halohydroxylation reaction of allenyl sulfides occurs predominately with the β,γcarbon-carbon double bonds with the halogen atom bonded to the middle carbon atom of the allene moiety.

在1，2-聯(lián)烯基硫醚分子中由于同時(shí)存在著硫原子和具有兩個(gè)相互垂直π-鍵的累積雙烯結(jié)構(gòu)黄色片日韩一区二区，使其具有一些特殊的反應(yīng)性能日本黄色片一级啪啪啪。

METHODS: Based on the antitumor activity and structural feature of 8-chloroadenosine and retinoic acid, modifications were made at positions 5′ and 8,substituted cinnamoyl and benzoyl groups were bound at 8 position through amido and ester bonds, sulfonation and nitrosation at 5′-OH and its direct chlorination were conducted.

對(duì)腺苷的8位和8-Cl-腺苷的糖環(huán)羥基進(jìn)行了結(jié)構(gòu)改造，以酰胺鍵和酯鍵在腺苷的8位連接了具共軛基團(tuán)的肉桂跞蘸攀悠滴蘼胫形模基和苯甲跖访览细炯で锽BW；玫较佘盏木S甲類(lèi)似物日本性交网站；對(duì)8-Cl-腺苷的5′-羥基進(jìn)行了甲磺豕続中文在线观看；趸约奥却磻?yīng)精品久久久久久无码中文版，得到了它的衍生物狼友无码。

AVI may be protein matrix and it possesses neither a membrane boundary nor an internal structure,its formation is the result of the anthocyanins transported into the vacuole bind with a protein matrix. In vacuole, AVI is irregular and jelly-like in shape. In AVIs, the attachment of anthocyanins to the matrix protein is likely to be via H-bonds to a sterically restricted site. AVI is suggested to act as vacuolar anthocyanin "trap", preferentially for anthocyanidin 3, 5-diglycosides or acylted anthocyanins. The emergence of AVI can enhance color intensity and results in the "blueness" of color in the vacuole.

花色苷液泡包涵體可能具備蛋白質(zhì)基質(zhì)，既無(wú)膜包裹又無(wú)內(nèi)部結(jié)構(gòu)五月天色色综合，其形成是轉(zhuǎn)運(yùn)進(jìn)液泡的花色苷與蛋白質(zhì)基質(zhì)結(jié)合的結(jié)果又粗又大的欧美影院；液泡里的花色苷液泡包涵體形狀不規(guī)則，象果凍国产AV一区二区三区天堂；在花色苷液泡包涵體中女生高潮喷水的视频，花色苷可能通過(guò)氫鍵連接于蛋白質(zhì)基質(zhì)的一個(gè)有限空間位點(diǎn)；花色苷液泡包涵體被認(rèn)為是液泡中花色苷的&陷阱&一区偷窥视频，優(yōu)先攝取花色素370岁熟女熟妇伦Av网站，5-二糖苷或酰化的花色苷毛片A级视频在线播放；花色苷液泡包涵體的存在可增加液泡色彩的強(qiáng)度并導(dǎo)致&藍(lán)化&无嘛黄色网站。

They have been borrowing heavily in yen and putting the proceeds into more remunerative assets, such as antipodean bonds.

外來(lái)投資大量的借入日?qǐng)A并將收益轉(zhuǎn)入諸如澳紐債券的較高收益資產(chǎn)。

The isomerization principle of independent double bonds of unsaturated fatty acids from Chinese featural arboroid oils-stillingia oil was first studied in the paper in China. The synthesis principle, properties of products and practical experiment of the derivatives of conjugate acids were also discussed.

本文以中國(guó)特產(chǎn)木本油脂—梓油為原料，在國(guó)內(nèi)首次對(duì)油脂不飽和脂肪酸孤立雙鍵的異構(gòu)化反應(yīng)規(guī)律進(jìn)行了系統(tǒng)的研究动漫精品一级毛片动漫，并以異構(gòu)化反應(yīng)所得共軛酸為原料97人人摸人人操，對(duì)共軛酸衍生物系統(tǒng)產(chǎn)品的合成規(guī)律、產(chǎn)品性能及應(yīng)用性實(shí)驗(yàn)進(jìn)行了一定程度的探索一级做一级做a性视频。