Abstract:An ATP regeneration system composed of the glutathione-synthetase in the recombinant Escherichia coli WSH KE1 and the EMP pathway in the Sacharomyces cerevisiae WSH J7 was established by the mixed culture of the two kinds of microorganisms in su

Abstract:The biochemical changes of two varieties of grapes during the ice-temperature-high-humidity(ITHH)preservation are analyzed through tests. The changing rules of soluble solid content,reductive sugar content, acid content, respiratory intensity and press re

Abstract:对不同表面活性剂改性的ＣａＣＯ３ 填料进行研究，并将其应用于硬质ＰＶＣ塑料体系．从接触角、吸水率、表面自由能、粒径分布等方面研究了改性ＣａＣＯ３ 的表面性质．结果表明，改性后的ＣａＣＯ３ 表面疏水亲油、在油中的平均团聚粒径减小．将改性ＣａＣＯ３ 以高比例（ＣａＣＯ３∶ＰＶＣ＝ ５０∶１００）填充于塑料体系，发现用表面活性剂改性的ＣａＣＯ３ 填料可显著改善塑料的加工性能和力学性能．

Abstract:对从土壤中筛选到的酵母菌Ｙ－９６０１ 株进行了形态培养特征及生理生长特性的研究．该菌株以多边芽殖方式进行无性繁殖，形成子囊孢子．在无维生素培养基上不生长．同化和发酵萄葡糖、半乳糖、蔗糖、麦芽糖、１／３ 棉子糖，不同化乳糖及硝酸钾．同化淀粉、纤维二糖及Ｄ－木糖能力强，对淀粉具有较强的酒精发酵能力，鉴定为酵母属糖化酵母种．其最适生长温度为３０～３４ ℃，最适生长ｐＨ 值为５．０～６．０，在麦芽汁中液体培养倍增时间为９０ ｍ ｉｎ．

Abstract:In this paper,the effects of testing condition(for example,the different type of CMC,the different concentration of CMC,the size of filter paper and stirring rate) on the measurement of saccharifying cellulase activity were discussed.The data showed that

Abstract:Circulation process of materials around circuit is always one of the most important parts in clean production. The principles for accumulation of various components in circulation and the conditions for establishing infinite circulation were analyzed in t

Abstract:将离子交换色谱、凝胶过滤色谱、高压液相色谱及毛细管色谱等分离纯化技术结合使用，从酪蛋白磷酸肽（ＣＰＰ）制品中分离出３ 个纯组分，并对各组分的氨基酸组成和Ｎ 末端２～３ 个氨基酸序列进行了分析测定，从而确定了３ 个组分的结构，它们分别是αｓ１（６１～７９）、αｓ１（４３～７９）和β（７～２４）．与用胰蛋白酶水解酪蛋白得到的ＣＰＰ比较，用胰酶水解得到的ＣＰＰ肽链较短．

Abstract:通过响应面分析（ＲＳＡ）法，优化了灵芝菌丝体胞内多糖的热浸提条件，提取温度为９５℃，时间为３．５ ｈ，湿菌体与水的量比值为１∶２．５，此时胞内多糖提取率达到最大值，为１０．５ｇ／ｋｇ．

Abstract:对酶法提取甜菜废粕果胶得率的影响因素进行了研究．结果表明，８０ 目甜菜粕粉在５０℃、加酶量１５ Ｕ／ｇ、ｐＨ ４．８ 的Ｎａ２ＨＰＯ４－ Ｃ６Ｈ８Ｏ７ 缓冲溶液，料液比１∶１０～１∶１４、提取时间９０ ｈ 的条件下，果胶提取率达９０％ ～９２％ ，果胶粘均相对分子质量为５．６×１０４，高于酸法果胶的提取率（４２．０％ ）和粘均相对分子质量（４．３×１０４）．为甜菜果胶生产和品质的进一步改良奠定了基础．

Abstract:The cleaning aid property of Carboxymethyl Starch (CMS) was studies. The locking capacity of CMS to Ca ,detersive value and anti redeposition property improved with higher DS.CMS had better scattering capacity of solid dirt than CMC.The optimum amoun

Abstract:The effects of some major factors such as rotational speed , ratio of treatment and liquid flooding speed on removing higher concentration acetic acid (5 g/L) from testing waste water with liquid membrane in pilot rotary disc tower were examined. With Na

Abstract:NMR was used to determine the structure of the medium and last synthesized substance during synthesizing 99m Tc-MRP20, a new brain perfusion image agent. The results show the method is reliable.

Abstract:以天然光卤石为原料生产ＫＨ２ＰＯ４，提出了最佳工艺条件．采用高氯酸铵（ＮＨ４ＣｌＯ４）加入光卤石饱和溶液，经沉淀、过滤得高氯酸钾（ＫＣｌＯ４），再将此ＫＣｌＯ４ 加入磷酸中，以叔胺类萃取剂萃取去除高氯酸（ＨＣｌＯ４）获得ＫＨ２ＰＯ４．萃出的ＨＣｌＯ４ 经氢氧化铵水溶液反萃所得的ＮＨ４ＣｌＯ４ 可循环使用．光卤石中钾的回收率达９４％ ，所得ＫＨ２ＰＯ４ 的纯度为９９．１％ ．

Abstract:Codeposition process of particles SiC with matrix metal Co from Co plating bath was studied. The experimental results show that the composite electrodeposition is controlled by the transfer of particles to the cathode when the dispersion amount is small.

Abstract:In this paper, the dynamic model for optimal heat energy loads of digesters which consume more heat resource and have long interval is introduced. This model can be calculated using the implicit enumerate (IE) algorithm or the simulated annealing (SA) alg

Abstract:A new method of using fuzzy PID controller with parameter adaptation is presented in this paper, which is applied to the cascade control system on the reaction process of multifunction reactor. The result of simulation indicated that the controller improv

Abstract:The effect of printing stock on the printing quality is analyzed by the study of the maximum information content and the signal to noise of the printing stock. The results showed that the information content of the paper, which affects the printing qual

Abstract:The Yule Nielsen effect of noncoated copy paper is studied with the optical information theory in the resolution and tone reproduction characteristics of images printed on paper. This article focuses on the halftone system of the noncoated paper and the

Abstract:Based on the nonlinear dynamical equation of product packaging system,the shock spectra and the damage boundary curve of tangent nonlinear packaging system under the action of half-sinusoid pulse are obtained using a numerical method,and the influence of

Abstract:To overcome the defaults of mechanical cam, this paper presents a new kind of concept about the numerical control cam and introduces the principle and achieving method of the numerical control cam. The paper also tells us the prospect of its application.

Abstract:Basing on three dimensional CAD system on PC, this paper illuminated the main technology in the course of constrain assembly, that includes instancing part, instancing order, applying assembly constraints, analysing assembly editing assembly, creating ass

Abstract:In this article, the formula on winding density and discriminant for ribboning are deduced.They are better than now available.

Abstract:For determining elastic extension and recovery percentage of locknit elastic fabric, which is mixed with nylon and spandex, the correspondent regression straight line equation was established, and the theoretical spandex content could be up to 20%. While

Abstract:This paper studies the pressure on the gear and its invalidation character and after the analysis of the metallographical test. It concludes that the carbide in the carbuinaing layer has negative effect on the gear strength. So carbide should be avoided a