It is imperative to build LNG receiving terminals in some provinces or cities in the southeast coastland of our country. 我国东南沿海省市建设LNG接受终端已势在必行,本文对LNG接受终端工艺系统及主要设备进行了综述。
Methods: The mycelia yield increased rapidly up to 48 h of growth. The final density of the culture during this time was about 13 g of dry mycelia per litre of medium. 方法:培养48h,菌丝体数量很快增长,菌丝体干重达到13g/L培养基。
Using the fixed length spanning tree problem, it proves that finding the spanning tree length distributions problem is NP-C, so the strictly kth minimum spanning trees problems is also proven to be NP-C. 利用定长支撑树问题的复杂性,证明了求支撑树的长度分布L(G)问题是NP-C的,从而证明了严格第k最小支撑树问题也是NP-C的。
Some characters of the line graph L(G)图的若干性质
We give an upper bound for Lewin index, which is related to generalized primitive exponents of primitive digraph of order n and girth 2, determine the index set of this class digraph and discuss the extreme cases. 分析了围长为2的n阶本原有向图的l(G)的上界及相应的指数集,并讨论了极端情形。
Analysis of Order of Quotient Group Hol ( G)/ G_L 商群Hol(G)/GL的阶数分析
For M/ G/ 1 repairable queues, by use of "supplemental variables method'V 'state transfer analyses" and "Laplace transform", we derive the generating functions of queueing lengths which belong to three different models. 对M/G/1可修排队系统,运用补充变量法和状态转移及L变换分析,得到了该类系统的三个不同模型的各自队长的概率母函数及部分可靠性指标。
One hundred rats were randomly assigned to ten groups of ten ( named G_1~ G_ ( 10)), agents of intrathecal administration in different groups were: ① normal saline 10 μ 1 in group G_1; 100只大鼠,随机分为10组,分别于鞘内注射:生理盐水10μl(G1,对照组);
In ES group, 1 μ g ES endostatin were injected into vitreous in one eye, while PBS was injected into the other eye as the control 12 and 36 hours after being exposed to oxygen. ES治疗组小鼠在出氧箱后12、36h,一只眼玻璃体腔内注射1μgES,另一只眼注射1μl的磷酸盐缓冲溶液(PBS)作为对照。
The electric discharges of pain-related neurons in nucleus caudatum in 34 rats were recorded with glass microelectrode by the intrathecal ( i.t.h) injection of GABA ( 200 μ g/ 20pl). 实验用34只大鼠。向脊髓蛛网膜下腔注射γ-氨基丁酸(GABA)200ug/20μl,用玻璃微电极记录尾核痛反应神经元放电。
This paper expounds operator equation and its generalized solution for the boundary value problems of electrostatic fields in the L_2 ( G) spaee. The physical background of the generalized solution is pointed out. 本文在L2(G)空间中阐述静电场边值问题的算子方程及其广义解,指出广义解的物理实在性。
The results show that tendency of spontaneous combustion of coal, sulfur content sulfur in coal, advancing speed of working surface and geologic structure are the main factors, from which the risk degree for appraising the influential factors of the coal spontaneous combustion is obtained. 评定结果表明:煤自燃倾向性M、煤的硫含量L、回采工作面推进速度g、地质构造d等是影响采空区煤自燃的主要因素。
The results show that there is a negative segregation region of impurity in the sample. Solidification parameters G, R and G/ R have markable influence on purification property of impurity. 结果表明,在冶金级硅单向凝固试棒中,存在杂质元素的负偏析区,凝固工艺参数GL、R及GL/R对杂质元素的分凝特性有极显著的影响。