基域

The fundamental and higher-order harmonic ultrasound fields of a zeroth-order Bessel ultrasound field and focused Gaussian field in absorbing medium are computed and simulated by solving the KZK equation using a frequency domain finite difference method.

通过频域有限差分方法求解KZK方程，对吸收媒质中的零阶Bessel超声场、Gauss聚焦超声场进行计算，得到基波和高次谐波声场的数值解和仿真图，计算仿真结果验证了上述的理论结论。

From the famous Gabriel's theorem ,a basic connected finite dimensional associative algebra A over an algebraically closed field can be looked as a quotient of a path algebra decided by a connected finite quiver Q.

由Gabriel 定理，代数闭域上基的，连通的有限维结合代数A 同构于一个由连通有限箭图Q 确定的路代数的商代数。

The ECC theory was studied in this paper. Polynomial was used to complete the hardware design of all kinds of algorithm including multiplication, division, point addition, point doubling和 point multiplication in GF (2m).

本文研究了椭圆曲线密码学理论，采用多项式基实现了椭圆曲线在有限域GF(2m)中各种运算的硬件设计，这些运算包括乘法、除法、点加、倍点和点乘，并用软硬件结合的方式实现了ECC的加/解密流程。

A topological spaces X is minimal CH if and only if for each x∈X and each open CH-filterbase μ,if {x}=∩U∈μU=∩U∈μclU, then μ is a neighborhood base of x.

4拓扑空间 X是极小 CH空间，当且仅当对任意的 x∈X和任意开 CH滤基μ，若{ x}=∩U∈μU=∩U∈μcl U，则μ是 x的一个邻域基。

The experimental results show that the quantization errors of different wavelet bases are usually different and the wavelet base of the minimum quantization error in space and frequency domain is 5/3 wavelet after exchanging the decomposition and reconstruction filters.

实验结果表明不同小波基的量化误差通常是不同的，具有最小空、频域量化误差的小波基是交换分解和重构滤波器后的5/3小波。

As two men, measuring-rods in hand, quarrel about their boundaries in a field that they own in common, and stickle for their rights though they be but in a mere strip, even so did the battlements now serve as a bone of contention, and they beat one another's round shields for their possession.

壮实的鲁基亚人不能捅开达奈人的护墙，打出一条直抵海船的通道，而达奈枪手也无力挡开已经逼至墙根的鲁基亚兵汉，像两个手持量杆的农人，站在公地上，大吵大闹，为决定界石的位置，在一条狭窄的田域，为争得一块等量的份地翻脸，其时，雉培隔开两军，而横越墙头，双方互相杀砍，击打着溜圆的、摭护前胸的牛皮盾面，击打着稳条飘舞的护身的皮张。

The reaction barrier will be lowered by the substituents that delocalize the unpair electron in p z orbital of the central carbon atom.

R1和R2位置上取代基对α-氢转移反应势垒的影响取决于取代基对过渡态中碳原子的未参与sp2杂化的p z 轨道上单电子的离域作用。

Erve growth factor can combine with its" receptor (one of tyrosine protein kinase receptor coded by proto - oncogene tyrosine kinase, TrkA), Causing the molecule of receptors to gather on the cell surface, and the tyrosine protein in cytoplasmic domain may be activated, three tyrosine base in the kinase domain of its" receptor and two tyrosine base at other domain be phosphated, thus, phosphated tyrosine receptor kinase became the bracket which absorb all kinds of connective proteins and kinases.

GF与其酪氨酸受体激酶受体(由原癌基因trk编码的一种酪氨酸蛋白激酶受体，TrkA)相结合，引起受体分子在细胞表面发生二聚体化，然后受体细胞内结构上酪氨酸活性被激活，使受体自身结构中位于激酶结构域的三个酪氨酸残基及在此结构域外的两个酪氨酸残基发生自身磷酸化，这样，磷酸化的酪氨酸受体激酶A便成为吸收各种连接蛋白质和酶的支架。

The PrP of bastard halibut consists of 472 amino acid residues, weighing about 49.6kD. The deduced amino acid sequence is 71.9% similar to that of Japanese pufferfish and 66.4% similar to that of Atlantic salmon, and bears the structural signatures of PrPs including a signal sequence, tandem repeats, a hydrophobic region, two glycosylation sites, a disulphide bridge and a glycosyl phosphatidylinositol anchor site.

推测的牙鲆蛋白质感染因子蛋白由472个氨基酸组成，分子量约49.6kD，具有信号肽、短肽顺接重复、疏水区、糖基化位点、二硫键、糖基缩醛磷肌醇锚定位点等蛋白质感染因子蛋白特征结构域，与红鳍东方鲀和大西洋鲑蛋白质感染因子蛋白的相似性分别为71.9%和66.4%。

In the space, along with increased distance from the main ore-controlling structures, the frequency of P type of pyrite and their thermoelectricity also decreased gradually. Within one lode, from the upper to the lower parts of an ore body, the vertical change of pyrite in thermoelectricity as the follows:① when the ore body is stable, that is when the ore body is uniformly and continuously mineralized, the Dp andαvalues keep increased from shallow to deeper parts;② when an ore body is discontinuously mineralized, the Dp andαvalues have a wavy increasing tendency from the shallow to the deeper;③ when the deeper part of an ore body contains abundant, Co and Ni high mafic dykes, the Dp andαvalues of pyrite decreased from the shallow to the deeper parts of an ore body, that is, an reversed zoning of pyrite thermoelectricity occurs for pyrite in this situation contain more Ni and Co and belongs to N type.④ For the deposits hosted in the Archean metamorphic rocks, because all of the pyrite in this case is N-type, the vertical change of pyrite is not featured by the transition of pyrite type, but by the increased values of Vnp and α from the shallow to deeper parts of an ore body.

在空间域上，水平分带规律为：随远离主干断裂，矿脉中P型的出现频率逐渐降低或热电系数值逐渐变小；在同一条矿脉中，这是由于矿化不均匀性及脉岩的影响，由矿体的上部到下部，它的垂向变化特征可以有如下几种变化形式：①由矿体的浅部到深部，黄铁矿的Dp值、或α值呈稳定升高的趋势时，矿体往往表现为矿化均匀，连续性好、延伸稳定；②由浅部到深部，黄铁矿的Dp值、α值呈波状变化，但总体又具有增大的趋势时，所在的矿体连续性差；③当矿脉的下部发育有大量的基性脉岩时，由于基性脉岩中常含有较高的Co、Ni，使其中黄铁矿的Co、Ni含量较高而呈N型导电，由矿体的上部到下部，黄铁矿的Dp值、α值呈减少的趋势，而造成黄铁矿热电性特征的逆向分带，④产于太古代变质岩中的中深脉状金矿，由于其中的黄铁矿均为N型导电，所以垂向变化规律并不表现为导型的改变，只是Vnp值或α值从矿体的上部到下部由小变大。

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。