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     On the paper 1,we obtain the existence of inertial sets for generalized Ginzburg-Landau equation in one dimension.
     在文[1]的基础上得到了一维广义Ginzburg-Landau方程的惯性集存在性.
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     Based on the paper[3] ,this paper discussed the convergence of empirical numberal characteristics and proved the convergence of order k empirical origin point and order 2 empirical center of moment.
     在文[3]的基础上,进一步给出了随机变量x的k阶经验原点矩Exk及二阶经验中心矩的定义,并证明了k阶经验原点矩及二阶经验中心矩的收敛性,讨论了k阶经验原点矩与经验特征函数的关系.
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     Based on the paper 1,we obtain the exponential attractors for the generalized nonlinear Strain waves equation in one dimension.
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     Based on the paper [1] and [2], under the assumption that there is wind and not wind, this paper establish and discussed optimization model for fight fire in forest.
     在文[1][2]的基础上建立并讨论了有风和无风两种情况下的优化模型.
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     On the paper 1, we obtained the exsitence of the exponential attractor for the derivative Ginburg-Landau equation in two spatial dimensions.
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     On the basis of literature[8],the hypervalent surfur Containing three—memb- ered inorganic heterocyclic a seres of model molecules O_2SC_2H_4、O_2SCH_2NH and O_2SN_2H_2 has been studied with ab initio method.
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     Tindell conjectured that two cir-culants C_p〈a_1,a_2〉and C_p〈b_1,b_2〉which are isomorphic areAdam isomorphic.
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In this paper the general synthesis problem of optimal control systems with the criterion of transient responses as a positive integral functional (3) is discussed.In the first part it is assumed that the motion of controlled object is described by a system of ordinary differential equations and that the final states of the system form a bounded and closed convex region in n-dimentional euclidian phase space. A method is proposed for finding all optimal control functions which lead any starting state into the...

In this paper the general synthesis problem of optimal control systems with the criterion of transient responses as a positive integral functional (3) is discussed.In the first part it is assumed that the motion of controlled object is described by a system of ordinary differential equations and that the final states of the system form a bounded and closed convex region in n-dimentional euclidian phase space. A method is proposed for finding all optimal control functions which lead any starting state into the given final region of states. Some conclusions are obtained from the maximum principle by using transversal conditions of optimal trajectories in terminal points, and the particular properties of the stated problem are pointed out. The case of linear dif-ferential equations with integral quadratic functional criterion is investigated in detail.Further, in the second part the fundamental properties of isoloss regions, the rela-tions between the isoloss region and optimal control functions are indicated. As a direct result a partial differential equation determining the optimal loss-function J (x) is found and the connection between function J (x)and optimal vector control function u (x) is also stated. The methods proposed are practically the extension of the me-thods used by us for designing time optimal control systems as seen in [5, 6 ,7].Finally, an example is illustrated with optimal trajectories shown in phase plane.The necessary numerical data is calculated by an analog computer with high accuracy.

文中研究了具有公式(3)表示的一般正积分泛函的最优控制系统的综合问题.在第一部分中研究了具有控制参数的一阶微分方程组.控制系统的终点状态为n维相空间内的某一逐段光滑边界的闭性区域Ω.文中指出了根据极大值原理和轨道终点的横截条件寻找引到Ω的所有最优轨迹的方法.这里详细地研究了具有二次泛函和被积函数中不明显含有控制参数的质量指标泛函的线性方程情况.在文中第二部分研究了等损耗区的主要特性.指出了等损耗区与最优控制函数之间的关系.导出了求算最优损耗函数J(x)的偏微分方程,以及这一函数与最优控制函数u(x)的关系.上述方法是我们曾在文献[5,6,7]中用过的最优快速系统的综合方法的推广.文章最后举有例证.

Ⅰ. A brief mosquito survey was carried out in Changsha, Hunan Province from March to October, 1954. Adult pupae as well as larvae were collected from various habitats. As a result, twenty-six species of nine genera were discovered. They are 1. Anopheles hyrcanus var. sinensis, 2. Tripteroides aranoides, 3. Uranotaenia macfarlanei. 4. U. bimaculata, 5. Orthopodomyia anopheloides, 6. Ficalbia luzonensis, 7. Mansonia uniformis, 8. Armigeres obturbans, 9. Aedes vexans, 10. Ae. niveus, 11. Ae. albopictus, 12. Culex...

Ⅰ. A brief mosquito survey was carried out in Changsha, Hunan Province from March to October, 1954. Adult pupae as well as larvae were collected from various habitats. As a result, twenty-six species of nine genera were discovered. They are 1. Anopheles hyrcanus var. sinensis, 2. Tripteroides aranoides, 3. Uranotaenia macfarlanei. 4. U. bimaculata, 5. Orthopodomyia anopheloides, 6. Ficalbia luzonensis, 7. Mansonia uniformis, 8. Armigeres obturbans, 9. Aedes vexans, 10. Ae. niveus, 11. Ae. albopictus, 12. Culex fuscanus, 13. C. vorax, 14. C. hayashii, 15. C. (Neoculex) sp. 16. C. malayi, 17. C. (Lophoceratomyia) sp. 18. C. pallidothorax, 19. C. bitaeniorhynchus, 20. C. sinensis, 21. C. whitmorei, 22. C. tritaeniorhynchus, 23. C. mimeticus. 24. C. mimutus, 25. C. vagans and 26. C. fatigans. Among these species Tripteroides aranoides, Uranotaenia bimaculata, Orthopodomyia anopheloides and Ficalbia luzonensis were recorded for the first time in the province.Ⅱ. As regards the distribution of these twenty-six species in Changsha, twelve of them were found in Tung Ch'u (or East District) and Pei Ch'u (or North District), ten in Nan Ch'u (or South District), and Si Ch'u (or West District), sixteen in Chin Pan Ch'u, thirteen in Wen I Ch'u, twenty-one in Hui Chuan Ch'u and Yue Lo Ch'u. In the city thirteen species were found and in suburb, twenty-five species.Ⅲ. The daytime resting places of mosquitoes have been classified as household, pigsties, cowstable, villages and hills. Different species of mosquitoes prefer different quarters as their daytime resting places.Ⅳ. Larvae of seventeen out of twenty-six species of mosquitoes have been found Their breeding places and their association with other species are discussed.Ⅴ. On the basis of larval collection six species are considered as important and common in Changsha, namely Culex fatigans, C. tritaeniorhynehus, C. vorax, Anopheles hyrcanus var. sinensis Aedes albopictus and Armigeres obturbans. The correlation between climate and ecology of these six species is also touched on.Ⅵ. A key to the identification of all known species of mosquitoes of Hunan is given.

一.1954年3—10月,在长沙市初步调查蚊虫,共採得蚊种9属26种。其中有按蚊属1种、拟三翅蚊属1种、Uraunotaenia属2种、Orthopodomyia属1种、番蚊属1-种、曼蚊属1种、阿蚊属土种、蚊属3种及库蚊属15种(其中2种未定名)。所採得的9属26种蚊虫中,有树竹拟三翅蚊、Uranotaenia bimaculata、Orthopodo-myia anopheloides及罗宗番蚊4种,在湖南尚系首次报告。 二.长沙市蚊种的分佈,郊區有25种、中心區有13种。较为常见者有致乏库蚊、三 带喙库蚊、中华按蚊、白纹伊蚊貪食库蚊及骚扰阿蚊六种。 三.”长沙市各种成蚊的停歇处,主要是山陵、住宅、郊野及猪、牛栏。 四.在长沙市所发现的蚊虫中,只发现17种幼虫。各蚊种幼虫孳生地的范围是有差别的。致乏库蚊及贫食库蚊范围最广;Uranotaenia bimaculata、othopodomyiaanopheloides、黑足伊蚊的幼虫,只在树洞渍水中发现。 五.各蚊种幼虫间共生情况,已在文中讨论。 六.在调查的过程中,发现黑足伊蚊在傍晚时吸吮人血。 七.将湖南省已肢知蚊虫编为俭索表,以便有关工作人...

一.1954年3—10月,在长沙市初步调查蚊虫,共採得蚊种9属26种。其中有按蚊属1种、拟三翅蚊属1种、Uraunotaenia属2种、Orthopodomyia属1种、番蚊属1-种、曼蚊属1种、阿蚊属土种、蚊属3种及库蚊属15种(其中2种未定名)。所採得的9属26种蚊虫中,有树竹拟三翅蚊、Uranotaenia bimaculata、Orthopodo-myia anopheloides及罗宗番蚊4种,在湖南尚系首次报告。 二.长沙市蚊种的分佈,郊區有25种、中心區有13种。较为常见者有致乏库蚊、三 带喙库蚊、中华按蚊、白纹伊蚊貪食库蚊及骚扰阿蚊六种。 三.”长沙市各种成蚊的停歇处,主要是山陵、住宅、郊野及猪、牛栏。 四.在长沙市所发现的蚊虫中,只发现17种幼虫。各蚊种幼虫孳生地的范围是有差别的。致乏库蚊及贫食库蚊范围最广;Uranotaenia bimaculata、othopodomyiaanopheloides、黑足伊蚊的幼虫,只在树洞渍水中发现。 五.各蚊种幼虫间共生情况,已在文中讨论。 六.在调查的过程中,发现黑足伊蚊在傍晚时吸吮人血。 七.将湖南省已肢知蚊虫编为俭索表,以便有关工作人员之参考。

~~

在此工作中研究了钒对矽锰钢的性质的影响。为了研究这个影响,我们选择了基本成分为~0.25%C,~1%Si,~1%Mn的钢,然后加入0—0.55%V。我们仔细地研究了钢的性质随回火温度的变化。在低温回火后含钒钢的塑性、冲击靭性和靭性储备量都较不合钒钢者为高。钒的正作用在中温(400—500℃)回火后表现特别显著,其中以增加靭性储备量最为明显。在温度400—600℃之间回火次生硬化及回火脆性出现。在文中讨论了它们的作用和它们的差别。次生硬化的作用随含钒量的增加而加强,但钢的回火脆性敏感度的急剧升高仅在含钒量大于0.3%时发现。钒在含量小于0.3%时对回火脆性敏感度影响不大,只使冲击靭性(在靭性断裂下比较)略有降低。在高温回火后钒升高屈服极限、强度极限和疲劳极限。因为在850—950℃奥氏体化时碳化钒并未全部分解,所以钒不增加淬透性,甚至,在含量较高时使淬透性略有降低。在正火后钒略增加钢的强度。认为矽锰钒钢是有希望的钢种。

 
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