共查询到20条相似文献，搜索用时 671 毫秒
1.
朱浸华 《阿坝师范高等专科学校学报》2009,26(2):121-123
在Hilbert空间中,给出了一种求广义平衡问题的解和非扩张映象的不动点的迭代方法,并证明了关于广义平衡问题和非扩张映象的不动点问题一个强收敛定理。 相似文献
2.
关于广义混合平衡问题与无限族Hemi-相对非扩张映象不动点问题的公解,在Banach空间中,给出了一个新的迭代序列,用CQ方法,在适当条件下,证明了一些强收敛定理,推广和改进了Takahashi和Zembayashi等人的主要结果,证明方法与他们迥异. 相似文献
3.
给出了在Hilbert空间中,求广义平衡问题解和非扩张映像映象不动点的一种迭代算法,并证明了这样得到的序列强收敛于它们的公共解．该结论改进了Takahashi等人的结果． 相似文献
4.
给出了在Hilbert空间中，关于多值极大单调映象和α-逆强单调映象的拟变分包含问题和关于非扩张映象的不动点问题的一个强收敛定理，推广了张石生等人的主要结果． 相似文献
5.
本文研究了Banach空间中有限族渐近非扩张映象的修正Reich-Takahashi迭代程序收敛到有限族渐近非扩张映象的公共不动点的充分条件，改进和扩广了已有文献的相关结果。 相似文献
6.
谢芳 《昆明师范高等专科学校学报》2002,24(4):20-23,30
给出了Banach空间中具随机误差Ishikawa迭代序列收敛于渐近拟非扩张映象的不动点的新的充分和必要条件．推广和改进了Liu Q．的结果． 相似文献
7.
菅典兵 《商丘师范学院学报》1996,(Z4)
给出了Ｈｉｌｂｅｒｔ空间上非扩张映象的一个不动点定理，改进并推广了１９８２年，Ｄｕｑｕｎｄｊｉ和Ｇｒａｈａｓ在Ｈｉｌｂｅｒｔ空间中对非扩张映象给出的类似以于Ａｌｔｍａｎ定理的一个新的不动点定理相应的结果． 相似文献
8.
首次引进涉及渐近非扩张映象T的显式迭代xn＋1=αnf（xn）＋（1-αn）T^nxn,其中,是压缩映象在自反Banaeh空间框架下,获得了该迭代序列强收敛于T的一不动点的充要条件．将此结果应用到保核收缩映象,又获得一新的强收敛判定法. 相似文献
9.
在Hilbert空间中,用FAN-KKM定理导出了广义似平衡问题的辅助问题的解的存在性和唯一性,在适当的条件下,引入和研究了一种新的混合迭代序列,用以寻求广义似平衡问题的解集与一个k-严格伪压缩映象的不动点集的公共元。 相似文献
10.
研究了Hilbert空间中一类新的广义似平衡问题,用FAN-KKM定理导出了此类辅助问题解的存在性和唯一性,并得到了解的一些性质.在适当的条件下,证明了一种混合迭代序列强收敛于广义似平衡问题的解和一个非扩张映象的公共点. 相似文献
11.
张威 《中国教育研究与创新》2006,3(11):145-150
天保房地产开发公司根植于天津滨海新区。依托控股公司带来的资源优势，基于滨海新区列入国家发展战略部署的背景，在近年来取得了迅速的发展。但是随着国家一系列政策的出台，中国的房地产行业面临着一次大的重新洗牌过程，同时企业内部仍然存在着制度缺陷、管理不规范、流程不清晰、人员激励不足等各方面的问题，所以，天保房地产公司在面临着滨海新区良好发展机遇的同时，也面临着很大的挑战。如何在机遇与挑战并存的环境中，认真分析和评估企业的外部环境及内部资源与能力的优劣势，对企业内部的资源与能力进行积累与培养，制定相应的竞争与发展战略，引导企业的健康长远发展具有一定的必要性与迫切性。
本文从竞争战略的角度，综合分析天保房地产开发公司所面临的外部环境和内部条件，研究探讨天保房地产开发公司的发展战略框架，包括战略的指导思想、战略定位、战略目标及相应的实施措施，以期实现天保房地产开发公司的发展愿景和核心价值。 相似文献
12.
The experiment in which a candle is burned inside an inverted vessel partially immersed in water has a history of more than
2,200 years, but even nowadays it is common that students and teachers relate the change in volume of the enclosed air to
its oxygen content. Contrary to what many people think, Lavoisier concluded that any change in volume in this experiment is
negligible; moreover, the explanation relating oxygen consumption in the air with its change in volume is known to be wrong.
In this work we briefly review the history behind the candle experiment and its relationship with some typical erroneous explanations.
One of the key factors behind Lavoisier’s success was the use of experiments carefully designed to test different hypotheses.
Following these steps, we performed several closed volume experiments where the candle wick was replaced by a capillary stainless
steel cylinder supported and heated by a nichrome filament connected to an external power supply. Our recorded experiments
are displayed as web pages, designed with the purpose that the reader can easily visualize and analyze modern versions of
Lavoisier’s experiments. These experiments clearly show an initial phase of complete combustion, followed by a phase of incomplete
combustion with elemental carbon or soot rising to the top of the vessel, and a final phase where the hot artificial wick
only evaporates a white steam of wax that cannot ignite because no oxygen is left in the closed atmosphere. After either a
complete or incomplete combustion of the oxygen, our experiments show that the final gas volume is nearly equal to the initial
air volume. 相似文献
13.
徐振芳 《中学英语之友(高二版)》2008,(Z2)
秦二世时,丞相赵高野心勃勃,日夜盘算着要篡夺皇位。可朝中大臣有多少人能听他摆布,有多少人反对他,他心中没底。于是,他想了一个办法,准备试一试自己的威信,同时也可以摸清敢于反对他的人。 相似文献
14.
Easy Phonics带你学习自然拼读,让你学会字母的发音规律,正确地拼读单词。本期让我们继续来看看、读读、写写重读音节中包含字母a的单词,区分它们读短音short a-/e/,还是长音long a-/ei/。 相似文献
15.
Easy Phonics栏目带你轻松地学习自然拼读!在读读、听听、拼拼和玩游戏中,你将了解字母的发音规律,并正确地拼读单词。这一期,我们来学习元音字母a的短音(short a)和长音(long a). 相似文献
16.
从前,有一句话,叫做"吃得苦中苦,方为人上人".这句话被认为动机不纯,怎么可以做"人上人"呢?其实,对于"人上人"可以作不同的理解,一种理解是"骑在人民头上,作威作福",这种"人上人"当然不好;但也可以解释为比别人做更多的贡献,吃更多的苦,经过更多的挫折与困难而比一般人更成熟、更坚强,更知道怎么做人.实际上,对这句话应是作后一种理解的,因为这种"人上人"是与"苦中苦"联系在一起的. 相似文献
17.
张昭兵 《南京师范大学文学院学报》2009,(4):37-44
本文从毕飞宇小说中一再出现的镜、钟、影和胡琴的意向入手,考察毕飞宇小说的叙述人称、叙述速度、叙述结构和叙述意图。深入阐释＂我＂与＂他＂的分离与揉合,＂快＂与＂慢＂的交替与演变,＂是＂与＂非＂的分明与模糊,＂语言＂与＂沉默＂的相反而相成。 相似文献
18.
The concept of metacognition refers to one’s knowledge and control of one’s own cognitive system. However, despite being widely
used, this concept is confusing because of several reasons. First, sometimes it is not at all clear what is cognitive and
what is metacognitive. Second, researchers often use the same term, namely, “metacognition” even when they refer to very different
aspects of this complex concept. Alternatively, researchers may use different terms to indicate the same metacognitive elements.
Another foggy matter is the interrelationships among the various components of metacognition discussed in the literature.
This conceptual confusion regarding the concept of metacognition and its sub-components calls for in-depth theoretical and
conceptual clarifications. The goal of this article is to portray a detailed example of a conceptual analysis of meta-strategic
knowledge (MSK) which is one specific component of metacognition. This specific example is used to draw a general model for
conceptual analyses of additional metacognitive components. The approach suggested here is to begin with a clear definition
of the target sub component of metacognition, followed by a systematic examination of this sub component according to several
dimensions that are relevant to metacognition in general and to that sub component in particular. The examination should include
an analysis of how the details of the definition of the target sub-component refer to: (a) general theoretical metacognitive
issues raised by prominent scholars; (b) definitions formulated and issues raised by other researchers who have investigated
the same (or a similar) sub-component and, (c) empirical findings pertaining to that sub-component. Finally, it should be
noted that since metacognition is a relational rather than a definite concept it is important to situate the context within
which the conceptual analysis takes place. 相似文献
19.
吴佳颖 《英语大王(小学)》2014,(3):34-34
In spring, it＇s always warm and sunny. People like to go outing. ff＇s sunny today. The Blacks have a picnic in a park. There are many big trees and flowers in the park. They take lots of food with them. There is fruit, drinks, bread and so on. 相似文献