查询词典 extraction

The problem has been studied from two sides, firstly, from the viewpoint of applicability, based on the development strategic objectives of the oil company, with the aim to unify the exploration and extraction decisions of the resources in an integrated framework, and integrate the macro economic and technical objectives with micro economic and technical models of an oil well, an integrated non-linear dynamic optimal control model has been constructed, the objective is the benefit maximum of the exploration and extraction of the resources, and the optimalstrategies are obtained by changing the problem into a non-linear mathematical programming problem, on the other hand, from the more macro level, based on the analysis of the characteristics of the exploration and extraction activities of oil and gas resources, a conclusion is easily deduced that the procedure is full of randomicity, then discovering procedure of oil deposit is proved to be a Poisson process, and the reserves process is a supermartingale process, so the model of exploration discovery rate and the reserves model could be constructed.

其次从相对更宏观的层次上，通过对油气资源勘探与开发的特点分析，认为具有很强的随机性，证明了勘探活动发现油气藏的过程为一泊松过程，所发现的油气藏储量为一上鞅过程，在此基础上，建立了油气藏勘探发现率模型及储量模型，在油气价格服从几何布朗运动条件下，以油气开采收益最大化为目标，建立了一个油气资源勘探与开发的随机最优控制模型，采用动态规划方法得到了值函数的HJB方程，并针对方程的特点，以及方程及其变量所对应的经济学意义，对最优策略的求解进行了一些讨论。

Some preparation methods of galanthanime including extraction and organic synthesis were summarized, such as extraction from narcissus, galanthus woronawii losink, and lycoris radiate and countereurrent chromatography refining, and enzymatic extraction from hyacinths orientalis, as well as the organic synthesis using 3,4-dimethoxybenzaldehyde, methyl 3,4,5-trihydroxybenzoate, isovanilin and tyramine as raw material.

概述了加兰他敏从黄水仙、沃氏雪花莲中提取、石蒜中提取及逆流色谱法精制、喇叭水仙酶法中提取的方法、工艺；以3，4-二甲氧基苯甲醛、3，4，5-三羟基苯甲酸甲酯和异香草醛和酪胺为起始原料合成加兰他敏的方法。

Compared with ultrasonic extraction, the amount of extraction solvent and extraction time can be reduced when the UNE was applied.

与传统的超声萃取法相比，超声雾化萃取法具有溶剂用量较小、萃取时间较短的优势

In order to explore the extraction method of proteome and technique of 2-DE, we compared the extraction method between the TCA-ac-tone and the Tris-HCl, and improved the key steps of 2-DE. The Tris-HCl extraction was the most appropriate for Antiaris toxicaria seed proteome analysis because of the highest resolution and more informative 2-DE map. Those were the solid basis for the later research of studying on the discrepancy expression proteomics of Antiaris toxicaria Seed.

在探索适合箭毒木种子蛋白质组学研究双向电泳方法中，比较了三氯乙酸－丙酮沉淀法、和Tris-HCl法，以及对双向电泳过程中的关键步骤的改良，认为Tris-HCl法为最适方法，所得图谱背景清晰，蛋白质信息量最大，为箭毒木属植物的差异蛋白质组学的后续研究打下了坚实的基础。

Results indicate that the optimum extraction conditions are as follows: ultrasonic power is 600W, temperature is 53℃, the ratio of liquid to solid is 8︰1, ultrasonic treating time is 70min, reflux extraction time is 120min, the extraction rate of oleanolic acid is 3.000 mg/g; XDA-1 resin is favorable in purification of OA in Chaenomeles sinensis Koehne, the optimum purification conditions are found to be 0.794 mg/mL of OA concentration, the flow rate of adsorption is 0.5 mL/min; the desorption solvent is 90% ethanol, and the flow rate of elutant is 1.0 mL/min.

结果表明，超声波辅助提取最佳工艺条件为：超声功率600 W、提取温度53℃、液料比8：1、超声波提取70 min，回流提取120 min，齐墩果酸得率为3.000 mg/g；XDA-1型大孔树脂对齐墩果酸具有较好的吸附和解吸效果，最佳纯化工艺条件为上柱液浓度0.794 mg/mL，吸附流速0.5 mL/min；以90%浓度乙醇洗脱，洗脱流速1.0 mL/min，纯化后得提取物中齐墩果酸纯度可达26.55%。

Antimicrobial Peptides Raw Extraction of Differ Tissue from Young Chelydra Sserpentina This experiment was used methods of (NH_4)_2SO_4 extraction and improved acetic acid extraction on antimicrobial peptides crude sample from induced Chelydra serpentina's intestines,blood,liver,skin.

试验一、鳄龟不同部位抗菌物质的初提本实验采用硫酸铵提取法和改进的乙酸提取法两种不同的方法从诱导后的稚鳄龟肠道、血液、肝和皮肤组织内分离抗菌肽，研究鳄龟体内产生抗菌肽的能力及抗菌效果。

Result The optimal condition was as follow: Raw materials was 0.500 g Chimonanthus praecox Link. dry powder, the extraction agent was 70% alcohol solution, the ratio of raw material to extraction agent was 1:60, the microwave power was 288W, and the extraction time was 450 s for three times.

结果］原料0.500 g的腊梅花粉末，以70%的乙醇溶液作提取剂，提取剂的用量为1：60，微波功率为288 W，在提取时间为450 s下提取次数3为最佳工艺。

The optimum condition was determined via orthogonal experiments, and the result shows that the technology of bile extraction and purification adopts 10L chromato bar with 3L bile, gel silica as fixed phase, the mixed chloroform and isopropanol as mobile phase, gradient elution with mobile phase (the mobile phase ratio in extraction of cholalic acid and glycocholic acid is 4:1 , and then becomes 3:2 in extraction of glycocholic acid and glycocholic acid), and eluting velocity of 3～5mL/s .

采用正交试验筛选了柱层析最佳条件，以容积为10L的层析柱进行分离纯化，固定相为硅胶，流动相为氯仿和正丁醇混合溶剂，一次装样量3000mL胆汁，流动相采用梯度洗脱，先按4：1比例分离胆酸和甘氨胆酸，然后按3：2比例分离甘氨胆酸和牛磺胆酸，流动相洗脱速度为3～5mL/s。

With the adoption of self-designed interpolation ultrasound-assisted supercritical fluid extraction device, supercritical fluid extraction and ultrasound-assisted supercritical fluid extraction were employed to extract coix lacryma-jobi seed oil from coix lacryma-jobi seeds.

采用自行设计的超声强化超临界CO2萃取装置研究了超临界流体萃取和超声强化超临界流体萃取薏苡仁油，并对各自的实验条件进行了优化，比较了在各自优化条件下的产率。

Methods: The single factor experiments, systematically study the extraction of temperature, pressure extraction, the extraction time, an attachment ratio (Cosolvent velocity: carbon dioxide flow) and samples of the particles Cynomorium rate of flavonoids extracted.

通过单因素实验，比较系统地研究了萃取温度、萃取压力、萃取时间、夹带比（夹带剂流速：二氧化碳流速）及样品颗粒度对锁阳黄酮提取率的影响。

We grew the litchis with love, so that's why they are all looking so pretty.

林正雄：「要有爱心的，我们这个都是有爱心的，照顾起来，当然卖相比较好。

And scientists concerned about climate change believe it will cause more droughts in many areas in the future.

同时关于气候变化的科学家相信，在未来它会在许多地方引起更多的旱灾。