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1.
Combined with the characteristics of the digital circuit curriculum,this paper shows a full performance of the product for the CAI system of the digital circuit curriculum(CSDCC) based on simple MPC. CSDCC includes four parts:system design, classroom teaching, ICAI system, experiment teaching. From construction to details, the system design module is designed to complete the design of he system is bottom database.Providing three kinds of teaching style : commonness, practice, hyperText , the classroom teaching module completes teaching for the whole contents of and the ICAI system module gives the product, which is the ICAI system of the K map Simplification of Logical Function.  相似文献   

2.
逻辑思维是学术研究的基石,研究者应掌握基本的逻辑方法。本文在对逻辑学基础理论知识进行梳理的基础上,就逻辑思维在“三农”问题研究中的实际应用简明扼要地进行了分析。  相似文献   

3.
This paper,taking the model KMX15R multi_way valve for an example,analyses some special function demands for multi_way valve raised by modern hydraulic excavator,the structure principle of new multi_way valve to accomplisch these fouctions.  相似文献   

4.
浅谈蜂胶的保健作用   总被引:1,自引:0,他引:1  
论述了蜂胶的来源、原理、保健功能和作用机理,指出生产和食用蜂胶时应注意的问题。  相似文献   

5.
6.
乳酸菌及其生理功能研究的进展   总被引:7,自引:0,他引:7  
详细介绍了乳酸菌的种类、生理特性,以及乳酸菌生理功能的研究进展,并对乳酸菌的研究应用进行了展望。  相似文献   

7.
雪莲果的功能特性及应用   总被引:1,自引:1,他引:1  
雪莲果营养丰富,富含低聚果糖,具有特殊的功能特性,是纯天然新型水果。概述了雪莲果的主要功能特性、国内外加工现状及研究进展。  相似文献   

8.
The kernel function of kernel estimator for regression function is often defined with compact support, the moment of Y is bigger than one. The convergence rate of the improved kernel estimator is discussed under the improved kernel function. The result is also discussed under random censorship. The class of applicable kernels include those having unbounded support and even not integral .The condition of moment of Y is discarded under the improved kernel estimator. The results are wholly the same as usual and generalize the relative results of the paper .  相似文献   

9.
嗜铁素功能研究概述   总被引:2,自引:0,他引:2  
嗜铁素是微生物和部分作物在低铁应激条件下产生的一种能够高效率结合三价铁离子的低分子量有机化合物。该类物质是一种重要的生物活性物质,在生命代谢中起着非常重要的调节作用,但是能否被有效开发利用,了解其功能是关键。为此,本文对其在生物防治、致毒、植物营养学、载体和其他五个方面的功能进行了系统概述,并就其未来的研究方向做了展望。  相似文献   

10.
阐述了蛹虫草、冬虫夏草的感染史和营养功效成分及二者的同功性,以便人们正确地认识蛹虫草的功效并开展加工利用。  相似文献   

11.
The principles of image monitoring system for bridge's deformation is proposed. Based on linear system theory, the whole system comprises linear shift-invariant system composed of atmosphere, optical sub-system and camera. The modulation transfer function of each component is analyzed, especially for the atmosphere. For a special system, modulation transfer functions on different weather condition such as sunny, cloudy, rainy and fogy weather are analyzed.  相似文献   

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13.
Spiral case is the core structure of powerhouse,therefore,it is critical to obtain its accurate stress and strain.Simplified algorithm is adopted to analyze the mechanical characteristics of preloading water-filled spiral case of a large hydropower project.The numerical results show that the adoption of preloading water-filled spiral case structure is feasible.The maximum stress of surrounding concrete mainly lies in the top of spiral case structure at various sections.The suitable internal pressure is 1.9MPa.The stress of surrounding concrete of spiral case is mainly caused by water pressure,and the effect of upper loading is limited,which is only about 5% to 24%.  相似文献   

14.
运用农业生态学和农业可持续发展评估理论与方法,通过定位试验研究双杂油—稻的生态经济功能。双杂油—稻复种模式的资源效应、生态效应、经济效应、社会效应4个方面19个指标的综合评分为0.409,比双季稻复种模式高0.078,比传统油—稻复种模式高0.149。  相似文献   

15.
In this paper, the fundamental formula of matrix function is discussed. The author puts forward a new method of solution of two-rank linear transient respond, using the fundamental formula of matrix function. The method can be spread and applied to solution process of high rank linear circuit transient respond and is superior to that of traditional solution.  相似文献   

16.
膳食纤维的生理功能及其在食品中的应用   总被引:3,自引:0,他引:3  
介绍了膳食纤维的定义。系统地阐述了膳食纤维的生理功能和组成,并根据其溶解性和来源不同进行了分类,进一步分析膳食纤维的合理摄入量及其应用状况。  相似文献   

17.
番茄红素的提取及生理功能的研究   总被引:4,自引:0,他引:4  
番茄红素为开链式不饱和类胡萝卜素,具有抗氧化、清除自由基、促进细胞间连接与传导、防癌抗癌等多种生理功能。作为一种功能性天然色素,番茄红素被广泛应用于多种功能性食品。从分子结构、提取生产以及功能性质方面介绍了番茄红素的发展情况。  相似文献   

18.
19.
概述了花生磷脂的组成、结构及性质;详细总结了磷脂的营养功能、生理功能等生物学功能;探讨了花生磷脂的研究前景,以期对花生磷脂的产业化发展带来新的动力。  相似文献   

20.
膳食纤维的生理功能及应用   总被引:3,自引:1,他引:2  
系统阐述了膳食纤维的生理功能,介绍了膳食纤维的合理摄入量和应用状况。  相似文献   

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