That cell hybridization can be used to dissect regulatory mechanisms controlling gene expression in eukaryotic cells . 雜交細(xì)胞能被應(yīng)用于剖析真核細(xì)胞中控制基因表現(xiàn)的調(diào)節(jié)機(jī)理。
mechanism controlling the spacing between fractures in a group 等間距斷裂控制機(jī)理探討
However, rules and mechanism controlling the soil degradation were not very clear as yet 但落葉松人工林土壤質(zhì)量降低的原因和土壤質(zhì)量變化規(guī)律,至今尚不十分清楚。
Molecular diffusion is the predominant mechanism controlling volatile organic compounds transport within the composite liner 有機(jī)揮發(fā)性化合物在復(fù)合襯里中遷移時(shí),其主要的機(jī)理是分子擴(kuò)散作用。
The operation of main machine will be completely realized by electron and mechanism . the deviation of mechanism control is within 2mm 主機(jī)運(yùn)作全部實(shí)現(xiàn)電子、機(jī)械雙定位。機(jī)械同步誤差控制在2毫米之內(nèi)。電腦動(dòng)作實(shí)現(xiàn)互鎖。
An instrument consisting of a number of pipes that sound tones when supplied with air and a keyboard that operates a mechanism controlling the flow of air to the pipes 一種由一定數(shù)量的靠輸送氣流發(fā)聲的管子和一個(gè)操縱機(jī)械裝置以使氣流通過(guò)管子的鍵盤(pán)構(gòu)成的樂(lè)器。
So, the phase separation degree of the precursor in the reaction system can be took as a mark to differentiate the mechanism controlled the production of nanoparticle srceo3 from that controlled the traditional process 因此,可以將反應(yīng)體系中前驅(qū)物的分相程度作為一種標(biāo)志,區(qū)分納米srceo3粉體的固相合成反應(yīng)機(jī)理與傳統(tǒng)的固相合成反應(yīng)機(jī)理。
By using theories of self-organization and heter-organization, the thesis deeply analyzes evolutionary law and evolutionary mechanism of modern enterprise product structure, author considers that self-organization mechanism combining heter-organizition mechanism controls the evolution of enterprise's product structure in market economy, and the leading product which directs the evolution is order parameter 利用系統(tǒng)科學(xué)中自組織理論和他組織理論的基本原理及研究方法,深入分析了現(xiàn)代企業(yè)產(chǎn)品結(jié)構(gòu)系統(tǒng)的演化規(guī)律與演化機(jī)制,認(rèn)為在市場(chǎng)經(jīng)濟(jì)條件下,企業(yè)產(chǎn)品結(jié)構(gòu)的演化是在“自組織”機(jī)制與“他組織”機(jī)制共同作用下完成的。而企業(yè)主導(dǎo)產(chǎn)品是企業(yè)產(chǎn)品結(jié)構(gòu)演化的序參量,他決定企業(yè)產(chǎn)品結(jié)構(gòu)演化的方向。
Specially, this paper focuses on the following authentication mechanisms : 1 ) operating system authentication . this mechanism controls logging access by the security features of network user . implementing integration with access control mechanisms of windows nt 4.0 or windows 2000 . this technology allows user to access database without inputting user id and password and provides more security functions by utilizing the security technologies of operating system 本文主要研究以下幾種認(rèn)證機(jī)制:1)操作系統(tǒng)認(rèn)證機(jī)制。該機(jī)制通過(guò)使用網(wǎng)絡(luò)用戶(hù)的安全特性控制登錄訪問(wèn),實(shí)現(xiàn)與windowsnt4.0或windows2000的登錄安全集成。該技術(shù)允許用戶(hù)不需要輸入用戶(hù)名和密碼即可迅速登陸進(jìn)入數(shù)據(jù)庫(kù)系統(tǒng),并可利用操作系統(tǒng)的安全技術(shù)提供更多的安全功能。
Some methods for synthesizing magnetic cobalt nanoparticles are introduced, especially the high temperature liquid phase method including the method of high temperature solution phase reduction, metal salt diol reduction and pyrolysis of cobalt carbonyl is elucidated in this paper . meanwhile, the mechanism controlled the nanoparticles dimension by the two kinds of surfactants is explained theoretically 摘要介紹了制備磁性鈷納米粒子的方法,尤其是介紹了近年發(fā)展起來(lái)的高溫液相法,即高溫液相還原法,金屬鹽醇解法和金屬有機(jī)化合物熱分解法;同時(shí)就制備顆粒尺寸小、粒度分布均勻的鈷納米粒子所采用的兩種表面活性劑從理論上給予了說(shuō)明。