中值
- 与 中值 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In "Truth Function", the paper, comparing with 2-vaued logic, briefs the quantity of truth function of 3-valued logic and how to calculate it.
在"真值函项"中,在与二值逻辑的比较下,文章介绍了三值逻辑的真值函项的数目及计算方法。
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The high inoculum levels increased the bacterial growth and shorten the time for antifungal substance production. The powder of rice, soybean cake, yeast, and wheat bran, CaCO3 and KH2PO4 were better nutrients for the bacteria growth and antifungal substance production. There were two stages during the fermentation process at 30℃. The growth of bacteria increased at the first 24 h and the pH of broth rose, but no antifungal activity was observed until 41 h later and reached to the highest level at 114 h.
基本营养物质的初步筛选试验证明:大米粉、豆饼粉、麦麸、酵母粉和CaCO3及KH2PO4是发酵培养基中最佳的营养物质,可满足抗菌物质产生对碳、氮和矿物质的营养需求。B-903的发酵过程可分为两个阶段:在30℃下,24小时内,细菌数量达最大值,pH值由低向高变化,但此阶段检测不出抗菌物质的活性;第二阶段,培养41小时后,抗菌物质活性开始显露,至112小时后达最大值,pH值也逐渐由高变低。
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The results suggested that compared with A-starch and maize starch, there are more quantities of impurities, such as protein, lipid and pentosan, in B-starch. B-starch prepared in the laboratory almost has the same compositions as three samplings, and accords with the reports of some documents too. Differing from the granules in A-starch, those in B-starch are smaller sized (1-10m)and oval shaped, and felted each other. The crystallogram of A- and B-starch are similar, i.e. A type. There is difference in granular distribution between A- and B-starch. The granular distribution of B-starch is anomalous and extensive (l~1259m).B-starch has bigger dilatancy and retrogradation, and smaller blue value, solubility, viscosity, gelatinization temperature and gelatinization enthalpy.
试验结果表明:跟玉米淀粉、A淀粉相比较,B淀粉含有的蛋白质、脂肪和戊聚糖等杂质数量多;实验室制备的小麦B淀粉中淀粉、粗蛋白、戊聚糖等含量均与文献的报道接近,也与在工厂采样的B淀粉相近;与A淀粉不同,B淀粉以小颗粒的淀粉为主,平均粒径1~10μm,颗粒形状呈椭圆形,同时颗粒和颗粒之间黏结紧密;B淀粉和A淀粉晶形结构相似,都为A型;B淀粉的粒度分布情况不同于A淀粉,其粒度分布规律性不强,分布范围也较宽,粒度在1~1259μm之间;B淀粉的凝沉值和膨润力大于A淀粉,而沉降体积、蓝值、溶解度、粘度、糊透光度、相变温度和热焓均小于A淀粉;杂质的含量对B淀粉性质的影响是明显的,随着杂质含量的增加,沉降体积、溶解度和透光度减小,膨润力增大,但是它们对凝沉值、蓝值和粘度的影响比较复杂。
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In the first time,the results suggest that after iodine-nutritional status in pregnant women is improved,elevation of neonatal TSH during expulsive process is a general phenomenon,especially in vaginal expulsive neonates.Vaginal birth way is one of the important factors which makes umbilical cord blood TSH tend to higher value.It is suggested that umbilical cord blood TSH values from vaginal birth should be corrected by those from cesarean section or heel blood
首次揭示在孕妇碘营养明显改善后,新生儿在娩出过程中TSH的升高是一种普遍现象,以阴道娩出者最明显,是导致脐带血TSH向高值偏移的重要因素之一,并建议用剖宫产脐带血TSH值或足跟血TSH值校正阴道产脐带血TSH值。
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Value at Risk was main tool of market risk management but traditional VaR did not appreciate liquidity risk to make that VaR did not give correct information and was misvalue VaR to lead a large number of damages.
摘要 风险值为现今主要风险管理下之衡量工具,但在传统的风险值模型中,并不重视流动性风险,使得风险值无法提供投资者真实的资讯,另外可能因错估风险值,而造成更大的损失。
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Based on having read a great deal of literatures about economic threshold, the authors pointed out the necessity and importance for applying the method of economic threshold in the studies of Phyllostachys pubescens ecosystem in this paper, and the authors also put forward the concept of economic threshold of Phyllostachys pubescens ecosystem and its research frame and some problems which should be pay attention to.
摘 要:在阅读大量有关经济阈值研究文献的基础上,创新地把经济阈值与毛竹林的科学研究结合起来,指出在毛竹林生态系统研究中,应用经济阈值研究手段与方法的必要性和重要性,并提出毛竹林生态系统经济阈值的概念、研究框架及其注意的一些问题,为毛竹林优化经营和丰产培育提供新的思路与技术。
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The concept of strict value reduct is proposed, and an improved algorithm for computing value reducts is given. In Chapter 4, we study how to utilize Rough Set theory effectively for an information system with continuous attributes. At first, we propose an approach of discretizing attributes one by one.
本文在第一章对数据挖掘的基本问题和主要手段进行了简单综述,在第二章对粗糙集理论作了简要介绍后,在第三章中对粗糙集中的值约简进行了研究,提出了严格值约简的概念,使得值约简的过程可以在没有封闭世界假设的情况下也能进行,并提出了求值约简的改进方法。
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The effects of solution\'s pH value, mol ratio between phenyl aldehyde and L-Arginine, concentrations of sodium chloride, ammonia chloride andL-Lystine, initial concentration of L-Arginine on precipitation rate of a -tolylene arginine were investigated, the results indicated that phenyl aldehyde precipitation method\'s appropriate pH value was higher than 11, suitable mol ratio between phenyl aldehyde and L-Arginine was 1.25, initial concentration of L-Arginine was must higher than 15g/L, sodium chloride had little effect on precipitation rate, on the contrary, ammonia chloride and L-Lystine had great effect on it, both of them must be eliminated; At the same time, adsorption isotherm at 25 C of L-Lystine on anion exchange resin A was measured, the result showed that the maximal equilibrium adsorbance was 30mg/g, the influences of solution\'s pH value, temperature, concentration of chloride ion on adsorption of L-Lystine by anion exchange resin A were also studied, the results indicated that appropriate operational pH value was 0.5 0.2, the effect of temperature on adsorption ratio was little, process could be operated at room temperature, the concentration of chloride ion must be eliminated.
考察了溶液pH值、苯甲醛与L-精氨酸摩尔比、氯化钠与氯化铵浓度、L-赖氨酸浓度、L-精氨酸初始浓度对苯甲醛沉淀L-精氨酸的影响,结果表明,沉淀反应的适宜pH值大于11,苯甲醛与L-精氨酸的适宜摩尔比为1.25,(来源:Aa6BC论文网www.abclunwen.com)L-精氨酸适宜的初始浓度在15g/L以上,氯化钠的存在对沉淀率基本上没有影响,而氯化铵和L-赖氨酸的存在使沉淀率下降;同时测定了25℃时阴离子交换树脂A吸附L-赖氨酸的吸附等温线,表明其最大平衡吸附量为30mg/g,考察了溶液pH值、温度、氯离子浓度对阴离子交换树脂A吸附脱除L-赖氨酸的影响,结果显示从L-精氨酸和L-赖氨酸混合液中吸附分离出L-赖氨酸的适宜pH值为10.5±0.2,温度对L-赖氨酸吸附率影响不大,吸附过程可在室温下进行,氯离子的存在使L-赖氨酸的吸附率降低。
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Then based on SURE unbias estimation, LMS algorithm and the new threshold function, this paper proposes a speech enhancement method called adaptive wavelet coefficients subtraction.
在小波阈值去噪的方法中,为满足时变信号的实时处理要求,本文首先提出一种新的阈值函数,新阈值函数克服了传统阈值函数的缺点,具有无穷阶连续导数。
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The term "unguaranteed residue value" shall refer to the residual value of the leased asset minus the guaranteed residual value of the lessor.
未担保余值,是指租赁资产余值中扣除就出租人而言的担保余值以后的资产余值。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。