变化系数
- 与 变化系数 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The result shows that the human activities are the dominant factors led to arable land and forestland area changing.
同时,建立了耕地、林地面积变化与主要驱动力因子之间的多元线性回归模型,回归模型的系数很好地解释了各因子对耕地、林地面积变化的贡献率。
-
The refractive index of metal effects mainly resonance depth and the half peak breadth. There is an optimum metal thickness with the largest resonance depth and the smallest reflection coefficient. The refractive index and thickness of dielectric layer and recording layer impact resonance angle and the half peak breadth.
金属薄膜的折射率是影响共振半峰宽度和共振深度的主要因素,计算表明存在一个最佳的金属层厚度,使得共振深度最大,反射系数最小;介质层和记录层的折射率和厚度的变化均会影响共振角的大小和共振峰半峰宽的变化。
-
The concrete work and main contribution are as follows:(1) The index indicating transfer capability homogeneousness is defined, and the new terms like homogeneous grid, grid according with economic flow are put forward. These new concepts describe the degree in which transfer capability is utilized, and they provide the standard for ideal grid whose transfer capability and power generation dispatching economy are in phase. So, new idea is introduced in transfer capability analysis.(2) The multi-objective function with generation cost and transfer capability homogeneousness weighted is constructed. The relationship between system existing generation dispatching and transfer capability is revealed through comparative analysis between security economic dispatch and security homogeneous dispatch, and the variation rule analysis between generation cost and transfer capability homogeneousness with the change of weighting coefficient.(3) Example analyses demonstrate that the difference between specific power system with ideal instance can be identified effectively using the above concepts and method.
具体工作和贡献主要体现在:(1)定义了衡量电网输电能力均匀性分布的指标,提出均匀电网、符合经济流电网的新概念,以描述电网输电能力被利用的程度,并给出输电能力和发电调度经济性相协调的理想电网标准,在输电能力分析评判领域引入了新观点;(2)构造了发电费用与输电均匀性加权的多目标函数,通过对安全经济调度与安全均匀调度的对比分析,以及权系数变化过程中发电费用与输电均匀性的变化规律分析,揭示了系统现存发电调度与输电能力之间的依赖关系;(3)大量分析表明,利用上述概念和方法可有效识别系统在特定模式下与符合经济流电网的偏差程度。
-
This paper made the discussion and illation in order to study the influence of light speed on the precision of CRDS in measurement of the absorption coefficient. A numerical calculation has been done according to the data provided by the experiments and part of scientific literature.
为了考察吸收系数的测量精度受光速变化的影响程度,进行了相关的分析和推导,并根据实验及部分文献提供的数据进行了数值计算,得到了忽略光速变化将导致测量结果偏小的结论,偏差值与腔镜反射率有关。
-
Based on the results of water quality (physical and chemical factors: water temperature, salinity, pH, DO, DIN, PO4-P, COD, and biomarker-indicated: total bacteria and Coliforms) determining from the 4 pools and infall, outfall of the Xishan Island aquaculture pond, the variation characteristics of water quality in infall, outfall of pond and its reasons were analysised and discussed.
结果表明:养殖场和进、排口水体温度、盐度变化不明显,pH下降与养殖周期有关;营养盐含量增加,在不同养殖种类、养殖周期和养殖饲料系数变化不同;受消毒杀菌等措施影响下细菌总数与大肠杆菌总数明显减小,而养殖周期长的池塘,细菌总数仍增加,大肠杆菌总数减少幅度变小。
-
Fuzzy logic control, as a newly automatic control strategy, has been applied in industrial occasion, has insensitiveness and fast response to controlled process.
由于静压储能传动系统工作时系统结构和系数都随着负载工况的变化而变化,采用常规的基于被控对象精确数学模型的控制策略不易或不能有效地完成对被控对象的调节。
-
The reference crop evapotranspiration(ET0) in Guanzhong region was calculated with the Penman-Monteith equation. The change characteristics of meteorological factors and ET0 over year were analyzed. The regressing relation between ET0 and geography factors was established. Space distribution of ET0 based digital elevation model was obtained. The water consumption model of main cropes was established using the crop cofficient method. The irrigation water requirement of main crop and it's space distribution based DEM under the different precipitation probability was obtained, which advanced the calculation precision of ET0 from spot scal to regional scal. The concept of water consumption under the irrigational scal was proposed. The water consumption model of different water user and model of groundwater balance based on the water consumption of Baojixia irrigation district was established. Which can refects the relation between water utilization, water consumption and change amount of groundwater resouces.
深入分析了关中地区气象要素的变化趋势,用Penman-Montainth 公式计算了参考作物蒸发蒸腾量(ET0),建立了ET0与地理要素的多元回归关系,获得了基于数字高程模型DEM的关中地区ET0的空间分布图;用作物系数法建立了关中主要作物生育期耗水模型,获得了主要作物在不同降雨条件下的灌溉需水,以及基于DEM的主要作物灌溉需水空间分布图,提高了作物蒸发蒸腾量由点到面尺度转换过程中的估算精度;界定了灌区尺度的耗水量的概念,包括用水耗水和非用水耗水,建立了灌区耗水量计算模型及基于耗水量变化的浅层地下水均衡模型,能较好地反映灌区引水量、耗水量及地下水蓄变量之间的内在关系。
-
Based on the linear model of governing object,this paper calculates the turbine transfer coefficients and six Ki parameters of generator in different work point,and the effect of these changing on latent root are calculated.
以调节对象线性化模型为基础,从1个实例计算入手,计算了不同工况下水轮机传递系数和发电机6个参数的变化情况,进而计算这些参数变化对调节对象特征根的影响。
-
Meanwhile, the isomer with a larger change of dipole moment has larger value of the first hyperpolarizability during the charge-transfer process.
5, 6, 7顶点双取代碳硼烷桥连分子受推拉电子基的影响,5, 6, 7顶点碳硼烷的构型发生一定变化,碳硼烷中两个C原子间的距离变长;同时碳硼烷中两个C原子取代位置的不同,影响了分子的稳定性和极化率,取代基团与碳硼烷中成键数较低的C原子相连的异构体,稳定性较好且具有大的极化率; 5,6,7顶点双取代碳硼烷桥连分子形成一维结构有利于分子内电荷转移,在电荷转移过程中偶极矩变化较大的体系,其二阶NLO系数也较大。
-
Their seasonal variations were related with vegetation characteristics such as leaf area index and canopy height as well as wind speed.d had a close linear relationship with h,and the variations of Z0 with h could be expressed by quadric curves.d/h and Z0/h were nearly correlated with LAI,and multiple correlation coefficient could be 0.99 and 0.78,respectively.
芦苇湿地的Z0和d的季节变化主要受叶面积指数、株高及风速的影响。d随h的增加而单调增加,Z0随着h的变化遵循二次曲线,d/h、Z0/h与LAI之间的复相关系数分别为0.99和0.78。
- 推荐网络例句
-
But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
-
Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
-
Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。