不值

The other was not exerting outside electric field and not adding redox reagents to control electropotential.

原生电位浮选工艺有两个要点：一是主要调节和控制包括矿浆pH值、捕收剂种类、用量及用法、浮选时间以及浮选流程结构等在内的传统浮选操作参数，二是不采用外加电极、不使用氧化—还原药剂调控电位，这两点为该工艺在现有浮选体系中实际应用及推广创造了条件。

According to by the time series estimate power spectral density\'s periodogram law principle,the research adopts five level of orbital power spectra which US Federal railway Administrative bureau FRA proposed;then,through the Fourier inverse transformation,the orbital not smooth time domain samples are obtained, which determine the track irregularity peak-to-peak value and the corresponding wave length; on the basis of the research,the influence of the wheel track dynamic contact force are considered.Based on the orbital roadbed coefficient\'s definition,computation model is established to solve the roadbed equispaced spring constant,and the roadbed uniform spring stiffness is obtained by using the numerical simulation method.Finally,based on the Matlab procedure platform,the computational procedure is established,and the load time interval caused by the moving train acts on the roadbed is obtained.

根据由时间序列估计功率谱密度的周期图法原理，采用美国联邦铁路管理局FRA提出的五级轨道功率谱，通过Fourier逆变换得到轨道不平顺的时域样本，确定了轨道不平顺的幅值及对应的波长，以此为基础考虑轮轨动态接触力的影响；基于轨道路基系数的定义建立了求解路基均布弹簧刚度的计算模型，采用数值模拟得到了路基均布弹簧刚度；最后，基于Matlab程序平台编制了计算程序，得到了运行列车作用到路基上的荷载时程。

TBA analysis showed 0.01% of TP had evident antioxidation on lipids from fish meat, and TBA increased with the TP concentration accretion presenting an unlinear relation. The effects of antioxidation of 0.03% and 0.07% of TP were close, thus, the best choice is 0.03% in practical application.5. 93 bacteria strains were isolated and categorized into several spoilage bacteria classes: Aeromonas, Vibrio, Pseudomonas, Enterobacteriaceae, Flavobacterium, Acinetobacter, Photobacteriaceae, Brevibacterium, and Micrococcus. In the early stage of storage (1～3 days), Gram-positive bacteria were the major strains and accounted for 70%, most of them belonged to Brevibacterium and Micrococcus.

TBA试验结果显示，添加00.1%以上茶多酚对草鱼脂肪都有明显的抗氧化作用，随浓度增加TBA值增加，但不呈线性关系，0.03%～0.07%抗氧化效果比较接近，从经济、有效的角度考虑在实际应用中可采用0.03%的茶多酚。5、从草鱼中分离出93株菌株，鉴定出以下几类主要腐败细菌：气单胞菌属、弧菌属、假单胞菌属、肠道杆菌科、黄杆菌属、邻单胞菌属、发光杆菌属、产碱杆菌属、短杆菌属、微球菌属、不动杆菌属、无色菌属。

It is proved that the method using the BEM to calculate the load distributions on the contact lines of involute gear pair, in which the applied load is taken in the form of a concentrated one at a single node, is not suitable. A method in which the tractions of the BEM are made to imitate the Hertzian pressure of the gear using 8 nodes isoparametric elements is introduced.

本文解决了边界元法在空间啮合副计算中存在的系数矩阵的存储，奇异单元积分的计算、表面不连续点处面力一点多值和求解未知量的线性方程组矩阵元素的计算等问题，编制了比不采用上述处理方法的一般边界单元法节省近一半内存和计算时间的适合空间啮合副的三维边界元法计算程序。

This method improves the computational accuracy, embodies the precipitation changes with topographty and the distributive incontinuity of precipitation, and solves the problem of the precision of the spatial interpolation of precipitation under complicated topographty condition.

该方法提高了计算的准确性，体现了降水随地形的变化以及在空间分布上的不连续性，有效解决了复杂地形条件下降水空间插值精度不高的问题。

Another result of the study is that the total rate of entering a higher school is 74 percent, 69 percent, and 86 percent. For educational opportunities, the second group is most unequal when the rate of entering a higher school increases up by 50 percent. Through the analysis of logical regression beta b, the change in the inequality of opportunities of years of education in Taiwan is mainly influenced by various sharp structures of a total rate of entering a higher school, and not by the inequality of educational resources. When the rate of entering higher school is nearly 50 percent, the opportunity of years of education is most inequal.

本研究进一步分析各年代的整体国中后升学机率，分别为74%，69%，86%，以第二组年代的升学机率最接近50%，教育机会也最不均等；而根据逻辑回归系数 b 值的分析结果，发现台湾地区民众教育资源分配之不平等性并没有明显一致的变化趋势，前述受教育年数的机会不平等性之变迁，并非受教育资源分配不平等性的影响，而主要受到整体升学率不同的钜视结构影响，在升学率最接近50%时，受教育年数的教育机会最不均等。

WB-DWI is a sensitive, but less specific method for diagnosis of lymphoma. It is difficult to differentiate lymphomatous from metastatic lymph nodes. ADC value may provide help in diagnosis of lymph nodes malignancy.

WB-DWI诊断恶性淋巴瘤的敏感性高，而特异性不强，难以与原发灶不明的淋巴结转移癌相鉴别，ADC值有一定帮助但不具有特异性。

The CBF of Megachiropteran's thalamus significantly decreased, but the decrease of the CBF of cortex was not significant.

其中大蝙蝠丘脑的脑血流显著下降，大脑皮层的脑血流的降低不显著，同时二者R2*值的下降都不显著。

Based on the review of the description of subtropical high and the research on its formation, fluctuation characteristics and physical mechanisms, it is found that the subtropical high is refered to the area where pressure is relatively larger. Its formation is due to the existence of mean meridional circulation that accumulates air mass to subtropical areas. The subtropical high is belt-like with meridionally non-uniform feature and this is a zonal mean point of view.

通过对副高的描述、形成及演变特征和物理机理的研究进行回顾，认为：副高是相对的气压的高值，是由于平均经圈环流的存在，使得有空气质量在副热带地区的堆积而形成的，成为带状，表现出在经度方向的不均匀，这是一种纬向平均的观点；同时，在这个平均的高压带上常常有闭合的单体存在，表现出纬向的不均匀。

The influence on energy/power measurement due to nonuniformly sampling is analyzed and the energy relation of the nonuniformly sampled signal in time domain and frequency domain is deduced.

如果输入周期信号的各次谐波谱线和各寄生谱线均不产生重叠，则可利用本文提出的方法计算出各通道的取样时间偏差的估计值，并证明了周期信号在其占有频带内可保证各次谐波谱线和各寄生谱线不发生重叠。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。