三氯蔗糖在食品加工中的应用及测定方法的研究概况   总被引：1，自引：0，他引：1  

施雅梅 《农产品加工．学刊》2007,(12):80-82

介绍了三氯蔗糖的特性。阐述了三氯蔗糖在食品加工中的应用及测定方法的研究概况。  相似文献   

牛Myostatin基因单核苷酸多态性分析   总被引：10，自引：0，他引：10  

史明艳  昝林森  李保兰  刘霞  张自富 《中国农学通报》2005,21(6):24-24

Myostatin基因即肌肉生长抑制素，是一种肌肉生长的负调控因子。应运PCR-SSCP和测序的方法对中国秦川牛、南阳牛以及国外引入品种皮埃蒙特牛双肌基因的第三外显子进行了多态性分析。结果表明：第三外显子938处G→A的单核苷酸的突变造成了南阳牛、皮埃蒙特牛第三外显子扩增片段多态性,秦川牛则不然。  相似文献   

生物质能源作物——能源甜菜的开发利用     

史淑芝  程大友  马凤鸣  崔杰 《中国农学通报》2007,23(11):416-419

随着全世界能源物质的不断扩展,可再生的生物质能源将是21世纪主要的能源物质。能源甜菜是新兴的可再生能源作物,它具有生物学产量高,乙醇转化率高,含糖量适中等特点,是取之不尽、用之不竭的环保能源,对环境几乎没有污染;同时又是糖饲兼收的作物。利用能源甜菜通过酒精发酵创造乙醇燃料新能源,可以减轻或消除与粮食争地的矛盾,是保证粮食安全和能源安全的双赢举措。  相似文献   

磷化铝动态潮解膜下环流熏蒸生产性试验     

史兆国  周健  辛玉红 《粮食储藏》2003,32(4):26-28

磷化铝动态潮解法是配合环流熏蒸使用的一种新型施药方法，本试验结合我库的具体情况，将动态潮解与膜下环流熏蒸有机结合起来，有效地解决了仓房气密性、有效时间、害虫再次感染等问题，大大提高了熏蒸杀虫效果，为抗性害虫的综合治理探索出一条新路。  相似文献   

Strength and Microstructure of Sulphoaluminate Cement Containing Ultra- Fine CaCO3     

ZHOU Shi - hu  HUANG Jia - mu 《保鲜与加工》2006,(4):121-124

The existence of ettringite in sulphoaluminate cement hardened paste is mainly in the form of pole-like crystal,which causes unfavorable effect on the cement.In this paper the strength and microstructure of the sulphoaluminate cement containing ultra-fine CaCO_3 weze discussed.Experimet results show that the strength of sulphoaluminate cement was obviously improved by adding 3% of ultra-fine CaCO_3.After curing for 28d,the compressive strength of cement paste and mortar is 100.6MPa and 94.1MPa respectively,and the bending strength of the mortar reached 12.5MPa.SEM study on hardened paste of sulphoaluminate cement containing ultra-fine CaCO_3 showed that its structure was dense and homogeneous,there was hardly any massive crystall detected.  相似文献   

Digital Beamforming for Unified Spread Spectrum TT&C System     

FENG Wen jiang  ZHAO Feng  DU Jian  YANG Shi zhong 《保鲜与加工》2002,(9):46-49

In TT&C system,unified spread spectrum framework and adaptive antenna digital beamforming technologies are used to track, telemetry and command objects. Constant modulus array (CMA) and adaptive signal canceller estimate the direction of arrival (DOA) of every signal and use the optimum weighted vector to form the beams. The phase weighted vectors estimated from DOA improve the processing gain as well as being utilized in the transmitting of tele command signal to form the beam of specified object. Its processing performance is researched and simulated in this paper.  相似文献   

Application and Advancement of Reinforced Earth Technique     

HE Guang chun  ZHOU Shi liang 《保鲜与加工》2001,(5):11-15

In this paper, the application of reinforced earth technique, principle and calculation method, new reinforced materials developed and produced are introduced. A few of key technical problems in reinforced earth application is discussed, such as reinforced earth behavior, calculation method, durability of reinforced material, amendment and complement of the current standards. Then, the reinforced earth technique development and advancement were introduced.  相似文献   

Real-time Vehicle Scheduling     

ZHANG Si fu  GUAN Shi ping  ZHANG Shun ping  DUN Xiao peng 《保鲜与加工》2002,(10):49-51

The traditional scheduling for vehicle is option in the fixed network. But it can't satisfy the real time environment. The demand of order is changeable and uncertain in real environment. It is convenient for scheduling transforming it into static data, but can't get the advantage on time. This paper proposes a real time vehicle scheduling on the study of traditional scheduling and discusses the model structure and the key technology for the real time system that establishes the base for develop teal time system.  相似文献   

An Expert Knowledge-acquisition Method on Line of Automatic Excluding Errors     

Huang Xiyue Chai Yi Deng Renming Bai Liang Shi Weiren 《保鲜与加工》1995,(5):1-6

Aimed at soving the problem existing in the knowledge-acquisition directing-operation expert systems, a new method is proposed to acquire knowledge of expert-operation, excluding errors existed in examples and reinforce the accuracy of examples,the goal of knowledge acquisition can be achieved, the method presented in this paper solves the problem of self-enhancement of expert knowledge on line efficiently.  相似文献   

Analysis on the Constructor Associations Localization     

ZHANG Shi -lian  LIU Wei  WANG Li 《保鲜与加工》2006,(3):115-118

Along with the establishment of the constructor association,how to locate the constructor association is extremely important at present,which is not only related to the efficiency of the constructor trade management,but also related to the future development of the constructor trade.This paper launches the discussion on the constructor association's localization from three aspects,namely the legal localization,the profession localization and the relation localization with the government and its members,and puts forward some proposals and individual opinions.  相似文献