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In the presence of Pd_2, NaOMe, and EtOH, a variety of aryl iodides and aryl bromides were coupled with arylboronic acids smoothly in very short time.

Pd_2作为催化剂,NaOMe作为碱,EtOH作为溶剂,一系列的碘代和溴代芳烃都能在极短的时间内与芳基硼酸反应得到相应的交叉偶联产物。

The coupling reaction of aryl iodides, bromides and chlorides with differentolefins catalyzed by catalyst 2 and 4 was studied. It was found that compounds 2 and 4 anchored on active carbon are efficient catalyst for the Heck reaction in the case of aryl bromides and aryl chlorides as substrates (Scheme 3). It is notable that catalyst 4 has higher efficiency for aryl chlorides.___^H Cat.2 or 4, Base HXSolution, 100C or 140

以化合物2和4为代表,重点研究了活性炭负载的二茂铁亚胺环钯化合物催化碘代苯、溴代苯和氯代苯与活泼烯烃之间的偶联反应(Scheme 3),发现活性炭负载的二茂铁亚胺环钯化合物2和4均可用于催化多种溴代和氯

Iodine value of modified activated carbon has been increased from 0.68% to 15.92%, and microwave power is the key influencing factor.

结果表明:经过微波改性后的活性炭的碘值增加幅度为0.68%~15.92%,微波功率是影响活性炭吸附性能的主要改性因素。

The high surface area activated carbon was used as the adsorbent for methane storage, and effects of BET surface area and iodine adsorption value on the adsorptive capacity of adsorbents was investigated.

以制备的高比表面积活性炭作为吸附剂储存天然气,初步研究了吸附剂的碘吸附值和比表面积对储气性能的影响。

The effect of the interior-molecular structure,reflected by the iodine value,the total content of mono-glyceride and di-glyceride,at different level on the quality of low-fat ice cream was studied.

研究了分子蒸馏单甘酯的碘值、总单酯含量、总双酯含量等反映的内部分子结构对低脂冰淇淋质构的影响。

The efficacy of this soap: kelps is nutritious, and full of microelement, B1, B2, mineral substance and so on. On the other side, the spare-ribs can offer the protein needed by human body.

这道汤的功效:海带营养丰富,含有碘、铁、钙、蛋白质、胡萝卜素,维生素B1、B2和其他矿物质等人体所需要的营养成分,排骨补充人体所需的蛋白质。

The results indicated that the resistant starch formed during extrusion resulted in the problems of iodine reactions of worts containing extruded rice.

提出挤压膨化时形成的抗消化淀粉,应是造成挤压膨化大米啤酒辅料糖化醪的碘反应出现问题的原因。

Thymidine analogs, including bromodeoxyuridine, chlorodeoxyuridine, iododeoxyuridine, and tritiated thymidine, label diiding cells by incorporating into DNA during S phase of cell diision and are widely employed to identify cells transplanted into the central nerous system.

中文摘要:胸苷类似物包括溴脱氧尿苷、氯脱氧尿苷、碘苷和氚标记的胸苷,它们可以在细胞分裂的S期整合入待标记的分裂细胞,因此,被广泛地用于鉴定中枢神经系统细胞移植。

A bit backwards upon opening, but with a bit of air it's quite lovely with definite high notes of seashells and iodine on the nose.

在打开一个向后位,但它的空气有点'挺具有一定高的贝壳和碘注意到可爱的鼻子。

Tea seed oil is rich in polyphenols, such as vitamin E and carotene, unsaturated fatty acids of which more than 85%, iodine value 112, vitamin E content than other edible vegetable oils high; the nature of tea-seed oil stability, sealed storage 1 years after the changes in physical and chemical properties of small, tea-seed oil is therefore easier to store than other vegetable oils; tea seed oil and other edible vegetable oils can be used as cooked dishes or cold dishes, has a unique fragrance.

茶籽油富含茶多酚、维生素E和胡萝卜素等,其中的不饱和脂肪酸超过85%,碘值为112,维生素E的含量均比其他食用植物油高;茶籽油性质稳定,密封储藏一年后理化性质变化很小,因此茶籽油比其他植物油容易储存;茶籽油可以和其他食用植物油一样用来炒菜、凉拌菜等,具有独特的茶香。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。