不同筋性面粉配比粉质曲线描述与比较分析

描述与比较了两种不同筋度、不同品牌的面粉,在不同配比下的粉质特征,主要包括面团的吸水率、稳定时间、形成时间、软化度、稠度、粉质指数等。结果显示,两种面粉在不同配比条件下形成的新面粉的粉质指数符合国家标准。统计分析,P=0.05,两种面粉在不同配比下形成的面团的吸水率、稳定时间、形成时间、软化度、稠度、粉质指数、校正加水均存在显著差异,但含水率差异并不显著。     

基于“大部制＂的教授研究室服务本科教育功能的完善

＂大部制＂改革已成为当前中国高校内部管理制度创新的重要内容。从沈阳师范大学教授研究室制度10年发展建设成果出发,阐述了教授研究室的学术交流、知识传授、人才培养和教研指导的功能,分析了教授研究室当前存在的问题,提出了＂大部制＂背景下教授研究室服务本科教育,贯彻落实全面育人、全员育人和全程育人的工作思路。     

Discovery of a bulk C36-type MgZn2 structure step by step transformed from the C14 prototype laves phase structure

Journal of Materials Science - MgZn2 phase is the prototype of hexagonal C14 Laves phase, acting as an important intermetallic compound. Here we first observe the atomic-scale structure of C36-type...     

Molecular mechanism of bacterial drug resistance based on embedded system and rapid detection method of drug resistance gene

The Molecular Mechanism of More clearly due to the current irresistible professionals and anti-microbial drug resistance. Over time, microbes became more intelligent, and, besides, the overly vigilant use of antioxidants in clinical practice brought microbial resistance to microbiologists. Anti-microbial drug resistance has been identified as an important problem in the treatment of microbial diseases. Rapid detection method based biochemical barrier systems used by microorganisms includes anti-toxin inactivation, target modification, modified penetration and "sidestep" of the metabolic pathway. Ensuring the protection of bacteria from anti-toxins, changes responsible for the protection of bacteria from all considered substances (aggregates) and anti-infective agents (genetic research) can be useful. Components of anti-toxin resistance may help physicians concerning the use of anti-microbials in a variety of situations. The system is installed for anti-infective agents to keep adverse results from contamination and their use of anti-microbial (treatment) safe disease. Movements have been made to control the spread of anti-infection safe organisms, and restrictions on the use of anti-microbes both provide an ascent to ethical species. Rules are used to select a unique range of weights and benefits related to anti-infective agents' evaluation structure and use.     

Mechanistic insights into the supramolecular structure and physicochemical properties of twin-screw extruded high amylose corn starch with different amylose content by improved electron beam irradiation

The influence of improvement via electron beam (EB) of twin-screw extruded (TSE) high amylose corn starch on its multiscale structure and physicochemical properties was assessed. The granular integrity of TSE was lost and the crystal type changed. TSE increased amylose content, A-chain content, rapidly digestible starch content and slowly digestible starch content, but decreased crystallinity, molecular weight and resistant starch content. These structural changes made TSE samples more susceptible to subsequent EB-irradiation. The molecular weight and long chain of amylopectin in TSE-sample were decreased by EB-irradiation. Amylose content, crystallinity and short-range order were reduced by EB-irradiation. These structural alterations facilitated the enhancement of TSE properties. The TSE-EB sample had better solubility, anti-digestive properties, lower swelling power and apparent viscosity. The combination of TSE and EB is an effective method to improve starch's structure and properties and this modified starch could be implemented to tailor starch to the desired food applications.     

试剂级硝酸镍的制备及其改进措施

对试剂级硝酸镍制备原理进行了分析;在产品研制过程中,对硝酸的浓度对电解镍溶解时间、硝酸的利用率及pH值对产品质量影响进行了研究;通过试验,确定了试剂级硝酸镍的制备工艺和关键技术参数：硝酸的浓度控制在13-14mol／L范围内,有利于电解镍溶解;当硝酸的浓度为13．5mol／L时,硝酸有效利用率达到95％;当溶液的pH值达到3．5后,可得到满足Q／YLB-2005-09标准要求的产品。找出了试剂级硝酸镍生产中存在的主要问题,并提出了有效改进措施：通过改进加酸方式、综合利用反应热、提高硝酸的利用率,从而达到降低生产成本和改善操作环境的目的。     

Latent factor analysis facilitates modelling of oncogenic genes for colon adenocarcinoma

Identification of oncogenic genes from a large sample number of genomic data is a challenge. In this study, a well‐established latent factor model, Bayesian factor and regression model, are applied to predict unknown colon cancer related genes from colon adenocarcinoma genomic data. Four important latent factors were addressed by the latent factor model, focusing on characterisation of heterogeneity of expression patterns of specific oncogenic genes by using microarray data of 174 colon cancer patients. Based on the fact that variables included in the same latent factor have some common characteristics and known cancer related genes in Online Mendelian Inheritance in Man, the authors found that the four latent factors can be employed to predict unknown colon cancer related genes that were never reported in the literature. The authors validated 15 identified genes by checking their somatic mutations of the same patients from DNA sequencing data.Inspec keywords: Bayes methods, biological organs, cancer, DNA, genetics, genomics, lab‐on‐a‐chip, medical diagnostic computing, molecular biophysics, physiological models, regression analysisOther keywords: latent factor analysis, oncogenic genes, colon adenocarcinoma, genomic data, Bayesian factor, colon cancer related genes, heterogeneity, expression patterns, DNA microarray data, Online Mendelian Inheritance in Man, somatic mutations, DNA sequencing data     

2-氨基-5-溴烟醛的合成

以烟酰胺为原料,经环合、酸解、溴代反应制得2-氨基-5-溴烟醛(1),并对其制备工艺进行优化和改进,结构经ESI-MS、1H NMR确证。改进后的工艺合成路线较短,操作简单,反应条件较温和,生产成本低,收率为37.4%(以烟酰胺计),具有较好的工业应用前景。     

基于改进调度图的西大洋水库综合调度研究

水库的建设为人类带来了巨大的社会经济效益,但同时由于传统的水库在建设和运行时对河流生态系统安全以及库区的环境保护考虑不足,也引发了一系列的生态环境问题。实施兼顾社会经济需求和河流生态健康的综合调度是减轻水库对于生态系统负面影响的主要方法之一。本文提出一种基于改进调度图的综合调度方法,将生态需水作为水库兴利调度的一个用水部门加入水库调度计算,对水库原有调度图和调度规则进行调整。和基于优化模型的多目标调度方法相比,该方法具有简便、直观、可以在缺乏径流预测的情况下使用的特点。本文进一步将该方法应用于大清河流域的西大洋水库,根据下游白洋淀湿地的生态需水要求,绘制了西大洋水库的改进调度图,制定了相应的综合调度规则。根据改进调度图的指导,西大洋水库在协调社会经济用水的同时可以保证白洋淀在平水年、枯水年和丰水年的平均水位分别达到6.78m、6.5m和8.42m,基本能够满足白洋淀的生态需水要求。     

铟的希夫碱配合物的合成及表征

研究合成了邻香草醛缩邻苯二胺配体,用此配体与无水三氯化铟反应,制得了未见报道的铟金属有机配合物。采用元素分析、核磁共振光谱、红外光谱、X-射线粉末衍射等分析手段对配体、配合物进行表征,推断配合物的结构。