查询词典 cross-sterility

After the click reaction of the SCL micelles and azide-terminus PNIPAM homopolymer, the novel PNIPAM-functionalized SCL micelles with pH-responsive cores and outer thermosensitive coronas were prepared, which was investigated act as excellent candidate of nanosized drug delivery vehicles. Finally, two types of novel shell cross-linked micelles in aqueous solution were prepared from these remarkable PMEO_2MA-b-P(DMA-co-QDMA)-b-PDEA triblock copolymers by cross-linking the inner P(DMA-co-QDMA) shell of micelles upon the addition of diazide tetra derivative in the presence of copper catalyst using click chemistry.

另外，还可以使用溴丙炔对ATRP聚合出的PMEO_2MA-b-PDMA-b-PDEA三嵌段的中间PDMA嵌段进行部分季胺化，这样可以利用两端叠氮化的四甘醇来交联由PMEO_2MA-b-PDMA-b-PDEA在不同条件下形成的两种分别以PMEO_2MA或PDEA为核的胶束，从而实现了从同一个聚合物直接在水溶液中得到两种内核不同敏感的壳交联胶束。

Finally, two types of novel shell cross-linked micelles in aqueous solution were prepared from these remarkable PMEO_2MA-b-P(DMA-co-QDMA)-b-PDEA triblock copolymers by cross-linking the inner P(DMA-co-QDMA) shell of micelles upon the addition of diazide tetra derivative in the presence of copper catalyst using click chemistry.

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Herbacium were isobilateral leaves, and those of G. hirsutum and C. barbadense were dorsiventral leaves. The reciprocal F〓 of cross G. arboreum×G. herbacium were also isobilateral leaves, while reciprocal F〓 cross of G. hirsutum×G. barbadense were also dorsiventral leaves. The quadrispecific hybrids F〓 were isobilateral leaves, regardless of their cytoplasms. The structures of the leaf stalks and the stems were analogous to each other among the four cultivated cotton species except their diameters varied with species.

四个栽培棉种及其种间杂种F〓的形态学和细胞遗传学观察四个栽培棉种的植株、叶片、茎杆以及花器等器官都有明显的差异；叶片、茎杆以及叶柄的横切面结构观察结果表明，两个二倍体栽培棉种的叶片横切面构造为等面叶，两个四倍体栽培棉种却均为背腹叶；F〓正反交的叶片也为等面叶，F〓正反交F〓仍为背腹叶，而它们的四元杂交种均为等面叶；四个栽培棉种的叶柄和茎的横切面结构基本一致，只是直径形状和和维管束多少的不同，四元杂种的叶柄和茎的横切面结构的差异不明显。

Analyses the main problems on the development of Zhanjiang advantageous industries including: firstly, the agriculture infrastructure is still backward, not power enough to resist the nature disaster; secondly, the agricultural product processing and circulation is still lag behind the situation of the growing economy; thirdly, the agriculture mechanism is low; fourthly, inefficient planting industry; fifthly, it hasn't realized the cross-industry and cross-regional economic recycling; sixthly, some of the aquatic products enterprises haven't got used to the requirements after we joined the WTO; seventhly, the eucalyptus planting plans are not strict, occupied too much area with inflexible management; eighthly, the bottleneck problem of hindering the development of husbandry is accentuated.

在进一步探讨研究的基础上，提出了湛江农业优势产业发展存在的主要问题，包括有（1）农业基础设施落后，抵御自然灾害的能力相对较弱；（2）农产品加工与流通仍滞后，落后于经济发展的形势；（3）农业机械化程度低；（4）种植业生产水平不高；（5）还未能实现跨产业跨区域的循环经济；（6）一些水产品出口企业不适应加入WTO后的形势要求；（7）桉树种植规划性不强、种植面积大，管理不科学；（8）制约畜牧业发展的瓶颈问题突显等。

The invention belongs to the fluid measuring technical field and relates to an oil, gas and water three-phase oil well continuous gauging device, which comprises a high-efficient gas-liquid separator; the high-efficient gas-liquid separator is connected with an oil, gas and water three-phase inflowing port; a gas phase outlet of the oil, gas and water three-phase inflowing port is connected with a gas phase measuring pipeline; a gas path temperature sensor, a gas path pressure sensor and a gas path endocone flowmeter with high-frequency differential pressure transmitter are arranged on the gas phase measuring pipeline; a liquid phase outlet of the high-efficient gas-liquid separator is connected with a liquid phase measuring pipeline; a liquid path Coriolis mass flowmeter and a liquid path endocone flowmeter are arranged on the liquid phase measuring pipeline; and the cross section of the pipeline for mounting the liquid path Coriolis mass flowmeter is more than the cross section of the pipeline for mounting the liquid path endocone flowmeter.

本发明属于流体测量技术领域，涉及一种油、气、水三相油井连续计量装置，包括高效气液分离器，高效气液分离器与油、气、水三相流入口相连，其气相出口与气相测量管路相连，在气相测量管路上装有气路温度传感器、气路压力传感器、带有高频差压变送器的气路内锥流量计；高效气液分离器的液相出口与液相测量管路相连，在液相测量管路上装有液路科氏质量流量计和液路内锥流量计，安装液路科氏质量流量计的管路的截面积大于安装液路内锥流量计的管路的截面积。

The results indicated that the cross sections of fibers were porous and the surface had many cross markings, endwise lines. The FT-IR of the three fibers were basically similar. Ramie fiber accorded to the character of cellulose I, and with the highest crystallinity.

实验结果表明，这三种纤维的截面内均有孔隙，同时表面具有横节竖纹；它们的红外光谱图基本相似；苎麻纤维符合纤维素I的特征，且结晶度最高；黄麻的耐热性能最好，其次是苎麻。

ELISA method was used for comparison. Results The positive rate of DIGFA in testing the serum from 50 infected rats was 96.0%(48/50). The negative rate of DIGFA in healthy rats was 100%(50/50). Cross reaction with Enteroclysis (13 samples) and Tapeworm (11 sqamples) was not observed. The cross reaction rate in 18 Strongyloidiasis rats was 5.6%. The sensitivity and specificity of DIGFA is comparable with ELISA (96.7%).

结果 用DIGFA检测广州管圆线虫实验感染鼠血清50份，其阳性检出率为96.0%，50份正常鼠血清的阴性符合率达100%，DIGFA分别检测蛲虫阳性鼠血清13份，绦虫阳性鼠血清11份和粪类圆线虫阳性鼠血清18份，前二者均为阴性，后者交叉反应率为5.6%；DIGFA与ELISA平行检测30份广州管圆线虫阳性鼠血清，两法符合率达96.7%。

Methods Twenty-three cases of OSAS patients proved by polysomnography were examined with MRI. The cross-sectional area of retropalatal region, retroglossal region, epiglottal region and the lateral parapharyngeal fat pad of RP region was calculated. The thickness of bilateral and posterior pharyngeal wall and other indices were also measured. 30 nonsnoring age-matched normal subjects were selected as the control group. 15 patients underwent turbo field echo T1-weighted imaging during sleep. The images of RP, RG, and EPG were analyzed. Results In oSAS group, the cross sectional area of RP and RG regions was smaller than that of the control group.

应用MRI对23例经多导睡眠监测（polysomnography， pSG）确诊的OSAS患者及30例无打鼾的健康成人进行上气道检查，于轴面图像测量软腭后区（retropalatal region， RP区）、舌根后区（retroglossal region， RG区）和会厌区（epiglottal region， EPG区）的气道截面积，各区前后、左右径及其比值，各区咽侧壁、咽后壁软组织厚度，RP区咽旁间隙（lateral parapharyngeal fat pad，LPFP）截面积，于正中矢状面图像测量软腭厚度、长度及截面积，对两组各项检查指标进行统计学分析。

Oxygen ion beam of 6.0 MeV was selected as incident ion, and the ERD spectra were detected at the angle of 30°, then the cross-sections for O to D and T are Rutherford cross section under this experiment condition.

以6.0 MeV O粒子作为入射粒子，在30°方向上探测反冲粒子，在此实验条件下，O粒子对D、T的碰撞截面为卢瑟福截面。

First, we synthesized a new monomer,1-(3\'-aminopropyl)-4-acrylamido-1,2,3-triazole hydrochloride,via click chemistry and its block copolymer with NIPAM, PNIPAM-b-PAPAT,via RAFT polymerization.On the basis of the reaction between amine groups of the PAPAT block and glutaric dialdehyde,core cross-linked and shell cross-linked micelles with inverted structures were prepared at 25℃and 50℃,respectively.

借助于PAPAT嵌段上含有的氨基及PNIPAM嵌段的LCST效应，我们在其20℃和50℃的水溶液中分别制备了CCL胶束和SCL胶束，进一步地，我们利用由Click反应产生的1，2，3-三氮唑环对金属的强络合和稳定作用，分别对CCL胶束的内核与SCL胶束的外壳用金纳米粒子进行选择性修饰。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。