壳的
- 与 壳的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The results showed that the N atom in amidogen of CTS coordinates with Cd in the coordination compounds of Cd-CTS,while in the coordination com...
结果表明:在壳聚糖-Cd配合物中的配位原子是壳聚糖—NH2上的N原子,而在壳聚糖-Ce、壳聚糖-Zr、壳聚糖-Pb配合物中不仅壳聚糖—NH2上的N原子参与了配位,同时OH上的O原子也参与了配位。
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CA-CTSs including N,O-carboxymethyl chitosan,N,O-1-carboxyethyl chitosan (N,O-1-CEC),N,O-2-carboxyethyl chltosan(N,O-2-CEC),N-carboxymethyl chitosan and N-1-carboxyethyl chitosan(N-1-CEC) are quaternized using active quaternary salts prepared in laboratory.5 series including 25 kinds amphoteric chitosans characterized with polymeric ampholyte,in which 24 kinds are synthesized firstly,are obtained, 2-Hydroxypropyl dimethylbenzyl ammonium N,O-(1-carboxyethyl) chitosan chloride (GDMBA-N,O-1-CEC) is hydrolyzed into serial low molecular weight GDMBA-N, O-1-CEC with acid as catalyst and microwave as assistant instrumentality innovately.
以合成的活性季铵盐改性了N,O-羧甲基壳聚糖、N,O-1-羧乙基壳聚糖(N,O-1-CEC)、N,O-2-羧乙基壳聚糖(N,O-2-CEC)、N-羧甲基壳聚糖和N-1-羧乙基壳聚糖(N-1-CEC)等羧烷基壳聚糖,得到5个系列25种具有两性高分子电解质特征的新季铵化羧烷基壳聚糖,其中24种为首次合成;创新提出以微波辅助酸催化的方法催化2-羟丙基二甲基苄基-N,O-(1-羧乙基)壳聚糖氯化铵(GDMBA-N,O-1-CEC)水解,得到了低分子量的GDMBA-N,O-1-CEC。
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First, from room temperature to 500oC, the shell structure is amorphous with crinkly and airtight character. The shell structure begins to change into γ-Al2O3 and α-Al2O3 at 900oC. The surface of shells shows nano-sized pores at 900oC from SEM and BET analyses. When heated to 1000oC and 1100oC, the shell forms stable α-Al2O3 structure with smooth surface. Cracks often occur at the triple grain junctions. The specific surface area and the total pore volume of the hollow spheres increase with the calcination temperature.
首先,将锻烧温度由室温提升至500℃时,球壳属非晶相皱褶状致密结构;在900℃时开始有γ-Al2O3相及些许的α-Al2O3相出现,由SEM及BET结果得知,900℃之球壳表面有许多奈米级孔洞出现;当加热至1000℃和1100℃时,球壳形成稳定相之Al2O3结构,壳层表面趋於平滑,且球壳在晶界处有微裂缝存在;由BET 结果得知,比表面积及总孔洞体积会随锻烧温度之增加,有增加之趋势。
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Origin, developmental changes and homologies of the stage morphostructures were considered according to their location in three morphogenetic fields. The first, or central, field forms at the prodissoconch I stage. It can be inherited by prodissoconch II and nepioconch stages in one taxa, or PD-II, N and dissoconch stages in others. The second, or postero-dorsal, field appears at the N stage, and the third field, or antero-dorsal, at the D stage.
主要对3个形态发生区域的阶段形态结构的起源、发育变化和同源性做了研究,其一,即中央区域,开始形成于前双壳I期,在某个分类单元它可以在前双壳II期和幼贝期形成,而在其它分类单元则在前双壳II期、幼贝期和双壳期形成;第二区域,即背部后区,在幼贝期出现;第三区域,即背部前区,出现于双壳期。
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In the design of the de-huller, the lotus seeds were fed into the de-hulling channel in queue of the seeds with a certain heading orientation by using a screw expeller, and the de-hulling channel composed of two rotating supporting roller and a con-rotating cutting roller was established to realize the de-hulling of seeds. The integrated adjustment unit was designed for the adjustment of the main cutting parameters such as cutting force, cutting depth, two obliquities in horizontal and vertical plane so that the different variety and granularity of seeds were de-hulled.
辊刀式莲子剥壳机采用供送螺杆对壳莲进行分粒供送并使莲子按照一致的位形排序上料,采用由双托辊和剥壳辊构成的剥壳通道实现莲子剥壳,为适应不同品种、不同粒度壳莲的剥壳,在剥壳机设计中采用了集总式调节机构以实现对主要切割参数即切割压力、切割深度、螺旋辊刀空间斜置和偏置角度的调节。
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Objective: This study and understand the past, untreated mung bean shells, untreated mung bean shells, shell-rich GABA deal with mung bean, mung bean processing GABA-rich shell, Se treatment Peeled mung bean, mung bean shell Se handle six substances in the amount of total flavonoids The optimal extraction conditions, the optimal concentration measurements as well as the extraction of antioxidant flavonoids and vitamin C, antioxidant comparison.
急求翻译以下文章,全副家产都丢下去了!目的:通过本研究了解未处理过去壳绿豆、未处理过绿豆壳、富GABA处理去壳绿豆、富GABA处理绿豆壳、富硒处理去壳绿豆、富硒处理绿豆壳六种物质中总黄酮量的最优提取条件、最优含量测量方法以及所提取总黄酮的抗氧化性和维生素C的抗氧化性比较。
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All the atomic shells for the examined atoms are shown and the """"""""reasonable"""""""" electron numbers are given. Especially for atomic subshell and shell structure of transition elements are correctly predicated. This theory provides uniform and objective criterion for shell structure of isolated atom, and the intrinsic and theoretical basis for the shell structure given by other methods. This theory provides a kind of new method for describing the atomic shell structure.
该理论可以揭示原子的全部壳层结构,产生基本合理的电子数,尤其是正确的预示了原子的亚壳层结构和过渡元素的壳层结构;依据该理论所确定的原子内禀壳层结构为孤立原子的壳层结构提供了统一的客观标准,为其它方法所确定的壳层结构提供了内在的理论依据;原子内禀壳层结构理论为度量孤立原子中处于束缚态下电子排布的壳层结构,提供了清晰的物理图像,为描述原子的壳层结构提供了一种新方法和新理论。
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The specific properties of materials, such as the palate adhesion, dynamic cruor, anti-bacterial and the degradability of lysozyme, were studied, which provide valuable data for further application. The main creative ideas are listed as follows:(1) The water-retention chitosan/poly vinyl alcohol blend fiber was obtained by coagulating in 10% NaOH/ethanol solution, and the blend and crosslink due to GA can enhance the mechanical properties of fiber;(2) The controlled degradable chitosan/gelatin blend fiber was obtained by solution filature, and the mechanical properties were improved;(3) The N-acylchitosan with the different degree of substitution were successfully prepared, and the relationship between structure and properties was estabilished;(4) By a new solvent system of 6% NaOH/4% urea for cellulose, the blood anti-coagulant function films were prepared by blending cellulose with chitin;(5) In the same solvent system above mentioned, the anti-bacterial blend films based on cellulose and carboxymethyl-chitosan were prepared, and the relationship of DS and the anti-bacterial property was concluded;(6) The controlled degradable chitosan films was obtained by the chemical crosslink.
本论文的主要创新点:(1)以NaOH水溶液/无水乙醇为凝固液,采用溶液纺丝法制备出保水性壳聚糖/聚乙烯醇纤维,共混和戊二醛交联极大提高了壳聚糖纤维力学性能;(2)用壳聚糖和明胶共混,以溶液纺丝法制备出可控降解的壳聚糖/明胶纤维,并大幅度提高了壳聚糖共混纤维的干、湿态抗张强度;(3)确立了不同取代度N-酰基壳聚糖的合成方法及其膜的结构与性能的关系;(4)利用纤维素新溶剂6%NaOH/4%尿素制备出抗凝血性纤维素/甲壳素共混膜;(5)利用上述纤维素新溶剂制备出抗菌性纤维素/羧甲基壳聚糖共混膜,揭示了羧甲基壳聚糖取代度与抗菌性能的关系;(6)制备出可控降解壳聚糖交联膜。
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The results show that a little amount of heteropolymolybdovanadophosphate can remarkably speed the degradation, the best conditions of the oxidative degradation of chitosan with hydrogen peroxide catalized by heteropolymolybdovanadophosphate in homogeneous condition are as follows: the ratio of catalyst and chitosan is 1 to 10, concentration of hydrogen peroxide is 0.15%, the temperature is 80℃, reaction time is 2h. 0.2g chitosan was degraded under the best condition and the molecular weight by viscometry was degraded from 1460000 to 7812. then water-soluble chitosan was obtained by this method; The heterogeneous method is a high efficient way, the best condition of this method are as follows: the ratio of catalyst and chitosan is 2 to 100, the volume of 30% hydrogen peroxide is about 3mL, the temperature is 90℃, reaction time is 5min~30min.
研究结果表明,适量磷钼钒的存在可显著加速壳聚糖的降解,磷钼钒催化过氧化氢均相氧化降解壳聚糖的适宜反应条件是:催化剂与壳聚糖的质量比为1∶10、过氧化氢百分浓度为0.15%、反应温度为80℃、反应时间为2h,在此条件下对0.2g溶解在100 mL 0.5%稀醋酸中的壳聚糖进行降解,可使壳聚糖的粘均分子量由原来的146万下降到七千多(7812),成为水溶性低分子量壳聚糖,从而达到应用的要求;在异相条件下以磷钼钒为催化剂催化过氧化氢氧化降解壳聚糖是一种高效快速的方法,此法降解壳聚糖的最佳反应条件是:催化剂与壳聚糖的质量比为2∶100;30%过氧化氢的用量为3mL左右;反应温度为90℃、反应时间为5min~30min。
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Latens was shell length, shell width, shell weight, and aperture width, respectively.
latens的蟹—壳关系中,与蟹介量最相关的壳介量分别是壳长、壳宽、壳重及壳口宽。
- 推荐网络例句
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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.
曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。
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The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.
稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。
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When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。