半

From [1], Every transition function is a positive strongly continuous semigroup of contractions on l\, but it isnt a strongly continuous semigroup on l_∞- In fact, the sufficient and necessary condition for a transition function to be a strongly continuous semigroup on l_∞ is that the q—matrix Q is an uniformly bounded q—matrix on l_∞- This is the trivial case.

由Anderson[1]知道转移函数P是l_1空间上正的强连续压缩半群，但P一般来说不是l_∞空间上的强连续半群，而P是l_∞上强连续半群的充要条件是q—矩阵Q是l_∞。

In infinite dimensional RDS, different to finite case, the cocycle can be usually considered only in the positive half-time line.

无穷维的随机动力系(来源：ABd454C论文网www.abclunwen.com)统和有限维的相比，其中的cocycle往往只能定义在正半时间轴上，为此我们首先对无穷维半动力系统进行了负向延拓，使得在负半时间轴上也有定义。

Especially, by an example for analysis of the authoritical boston housing prices data, we emphasize on applying an new regression model and method -- semiparametric functional coefficient quantile regression and two-step estimation method to show the great explaination of the new

介绍了非参数回归和半参数回归的发展历程及其估计方法，还介绍了分位数回归的相关理论及其研究现况。在半参数、变系数回归和分位数回归的基础上，进一步讨论了非参数和半参数的变系数分位数回归模型和局部多项式线性估计法。

At the same time, some properties of rough Set in quotient ring are given and proved. The fifth chapter is Rough Primary Ideals and Rough Fuzzy Primary Ideals in Semigroups, the concept of rough primary ideals and fuzzy rough primary ideals in semigroups are introduced. Under the condition of the complete congruence relation, a rough set of a primary ideal in semigroups is proved to be its primary ideal.

同时，在商环中讨论了粗糙集的一些性质，并给出这些结论的严格证明；第五章是半群中的粗准素理想和粗模糊准素理想，首次提出了半群中的粗准素理想与粗模糊准素理想的概念，证明了在完备同余关系下，半群中准素理想的粗糙集是准素理想。

Connected with trail research, this paper discusses synthetically the lacks of head-feed rice-wheat combine harvester and its' advancements on technology, and the current of the development on technology of head-feed combine harvester made in Japan in such as the header, the conveying-feed unit, the threshing cylinder, the cleaning unit and the rubber crower w...

分析了日本半喂入稻麦联合收割机在使用中存在的不足以及在收割、输送、脱粒、清选和行走机构等方面技术改进和发展动向。研究表明，以上技术进步进一步提高了半喂入联合收割机技术性能，可为我国半喂入联合收割机的研制提供借鉴。

Study on the protection of the coatings in preventing oxidation and decarbonization of steel and iron materials during heat treatment;2. The present and prospect of semisolid steel and iron forming technology were discussed.

重点叙述了国内外各种钢在半固态成型过程中的组织演变机理及其力学性能，并介绍了半固态的坯料制备和成型工艺，对钢铁材料半固态成型技术的现状及发展趋势进行了分析讨论。

In this paper we define distribution cosine functions covering the degenerate case. We also consider the degenerate distribution function generated by a multi valued operator A, its relation to the integrated cosine function and the wellposedness of the degenerate abstract Cauchy problem.

引 言分布半群的概念最早由 L ions在 6 0年代引入，近年来，其他类型的分布半群相继被定义和讨论[1— 4]，由于研究退化线性方程的需要，多值算子对应的 Cauchy问题也开始受到人们关注，在 [2 ，4]中有退化情形的分布半群的定义及研究。

No synarthrophysis, wound infection, implant disrupture, screw loose, patellar fracture or vascular nerve injury was observed in three groups of patients; There were 12 cases presenting anterior knee pain in the B-TP-B autograft group and 5 cases presenting posterior knee pain in the semitendinosus tendon graft group.

半腱肌腱重建组5例有不同程度的膝后痛。3组膝周痛发生率的组间差异有显著性意义(P=0)，自体骨-髌腱-骨组最高，半腱肌组次之，异体骨-髌腱-骨最低。3组术后发热时间组间比较发现，异体骨髌腱骨高于自体骨髌腱骨和自体半腱肌组(P=0)。

Aim In order to prove a semiring whose additive reduct is a semilattice and multiplicative reduct is a inverse semigroup to be a distributive lattice.

摘要目的求证加法导出是半格、乘法导出是逆半群的半环成为分配格的充要条件。

According to the comparison of economic indices, the comprehensive mining technology consisting of dragline stripping technology and semi-continuous technology are preferred.

经济指标的对比表明，露天矿宜采用由拉斗铲无运输倒堆工艺与半连续工艺组成的综合开采工艺，即采场上部剥离采用单斗电铲与自移式破碎机的半连续工艺，中部剥离采用拉斗铲无运输倒堆工艺，下部采煤采用由电铲、卡车、破碎机和地下带式输送机构成的半连续工艺。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。