查询词典 derivative

In addition, a chalcone derivative was synthesized as fluorescent and colorimetric chemosensor for anions such as F~- and AcO~-.5. Mesoporous SQ/SBA-15 on the basis of the interaction of squaraine dye and mercaptol was designed and synthesized.

设计合成了一个查尔酮化合物5，加入碱性较大的阴离子后，紫外可见吸收光谱和荧光光谱均发生变化，有望发展为荧光和生色双功能阴离子传感器。5。

The process of its occurrence: in explants induced by living cells to restore all of its potential, into meristematic cells, then its derivative for the parenchyma cells and the formation of callus.

其发生过程是：外植体中的活细胞经诱导，恢复其潜在的全能性，转变为分生细胞，继而其衍生的细胞分化为薄壁组织而形成愈伤组织。

X-ray thin film method and its derivative techniques have lots of superiorities: larger irradiated surface area, higher diffracted intensities, better monochromic and parallel X-ray beam, higher resolution, and easier operation procedure.

In或Al含量的增加，将使立方相InGaN(002)和{113}衍射峰宽化，使六角相InGaN和AlGaN、立方相InGaN外延层垂直方向和水平方向的均匀应变增加，固溶体晶粒尺寸细化，非均匀应变增加。

However, the main side effect of PDT is long term skin photosensitivity after the treatment because of the slow elimination of hematoporphyrin derivative from the skin. For solving this problem, 21 PWS volunteers accepted a new photosensitizer hematoporphyrin monomethyl ether in the treatment. 26 lesions ...

为解决治疗后的较长时间皮肤光敏反应这一主要副作用，本文对21例志愿鲜红斑痣患者的26个病灶应用血啉甲醚为光敏剂进行了治疗，对HMME的作用进行了临床观察，发现HMME具有良好的疗效、较轻的局部反应、较短的避光期和可行重复治疗的间隔期等优点，值得对其进行深入的研究。

Objective To explore the cytotoxicity on eight kinds of human cancer cell lines and apoptosis induction on human nasopharyngeal cancer cells(CNE_2) of a new semi-synthesized naphthoquinone derivative(2,3,11-triethanesulfanyl-6-isohexenylnaphthazarin,TEISHNZ).

目的探讨一种新的人工半合成紫草萘醌类衍生物(2，3，11-三乙巯基-6-异己萘茜，简称TE ISHNZ)。

Naphthoquinone derivative ; cytotoxicity ; apoptosis ; human nasopharyngeal cancer cell

紫草萘醌类衍生物；细胞毒作用；细胞凋亡；人鼻咽癌细胞

We tested the possibility of selectively blocking the excitability of primary sensory nociceptor (pain-sensing) neurons by introducing the charged, membrane-impermeant lidocaine derivative QX-314 through the pore of the noxious-heat-sensitive TRPV1 channel.

一种阻断特定痛觉神经元的这种活性而又不影响其他感觉或运动神经元的方法，也许可用来创建一种目标性更强的局部麻醉方法，而这正是Binshtok等人在本期Nature上提出的一个观点。

The extreme value of binary function at f_f_-f~2_=0 is judged by its direction derivative which follows ray starting from stable point and passing point P at every point P in noncentral neighborhood of stable point .

用驻点的去心邻域内各点P处函数沿以驻点为端点的过点P的射线方向的方向导数是否同号，来判定二元函数f在fxxfyy-f2xy=0时的极限。

In this report, the author analyzes the impacts of that error, discuss on remedy for exact derivative-free noncircular fan-beam reconstruction, and pose some open questions.

在本文中，作者分析了该错误的影响，讨论了用于非圆轨迹不含导数的精确扇束重建的矫正办法，并提出了一些未解决问题。

SFAS No. 119 (FASB 1994) amended SFAS No. 107 to require that the fair value estimates be presented together with the related book values and without combining the fair value of derivative financial instruments with the fair value of nonderivative financial instruments.

财务会计准则第119号（ FASB的1994 ）经修正的财务会计准则第107号，规定了公允价值的估计，可连同有关本书的价值和性相结合的公允价值衍生金融工具与公允价值的nonderivative金融工具。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐