本文对民用建筑中常用的标准喷头的布置形式、间距等问题进行探讨,提出宜按喷头实际工作压力并结合结构柱网确定喷头间距和布置形式。
Cow live weight is of economic importance in dairy production;however, it is not included in the selection objective for South African dairy cattle. Variance co
由于a同位素法露点在线检测仪的响应时间和检测精度取决于其控制精度,不同的控制方案有不同的控制结果。为适应不同场合对响应速度和检测精度的要求,分别设计了两种控制方案,即露层厚度控制与温度平衡动态扫描控制。响应时间和检测精度分别为:20s,±0.5℃;300s,±0.1℃。研究表明,露层厚度控制方案收敛速度较快,适用于现场实时检测;温度平衡动态扫描控制方案能够克服放射性统计涨落的影响,可提高检测精度,
This study was carried out to determine the chemical composition and in situ degradability of agro-industrial by-products found in Eritrea. Three categories of
Based on modified version of the Pennes' bio-heat transfer equation, a simplified one- dimensional bio-heat transfer model of the living tissues in the stea
目的探讨流式细胞术(flow cytometry,FCM)在非霍奇金淋巴瘤(non-hodgkinlymphoma,NHL)诊断与分型中的应用价值。方法选取60例NHL患者为观察组,同期20例反应性淋巴结增生患者为对
本文在理论分析的基础上,设计出测量火焰闪烁频率的实验方法和电路,在火灾科学国家重点实验室的大空间火灾实验厅进行实验,测量了不同燃烧物质火焰辐射频率特征,该测量分析对相关
探讨了利用数学软件Mathematica 4.0进行数学分析教学的一个新模式,尝试了以实验、探索、发现为特征的启发式教学法.实验表明,在数学教学中引入数学实验手段,利用数学软件进
An indoor and a grazing experiment was conducted to determine how estimated feed intake and digestion by grazing goats consuming concentrate, bahaigrass pasture
Omega 3 fatty acids have been shown to support reproductive performance in dairy cows, but large amounts are needed due to ruminal biohydrogenation of fatty aci