全文获取类型
收费全文 | 222篇 |
免费 | 36篇 |
国内免费 | 2篇 |
出版年
2024年 | 1篇 |
2023年 | 2篇 |
2022年 | 1篇 |
2021年 | 8篇 |
2020年 | 9篇 |
2019年 | 5篇 |
2018年 | 8篇 |
2017年 | 18篇 |
2016年 | 9篇 |
2015年 | 15篇 |
2014年 | 8篇 |
2013年 | 52篇 |
2012年 | 4篇 |
2011年 | 6篇 |
2010年 | 3篇 |
2009年 | 8篇 |
2008年 | 8篇 |
2007年 | 6篇 |
2006年 | 8篇 |
2005年 | 6篇 |
2004年 | 7篇 |
2003年 | 7篇 |
2002年 | 5篇 |
2001年 | 1篇 |
2000年 | 4篇 |
1999年 | 5篇 |
1998年 | 4篇 |
1997年 | 1篇 |
1996年 | 4篇 |
1995年 | 2篇 |
1994年 | 2篇 |
1993年 | 2篇 |
1992年 | 2篇 |
1991年 | 2篇 |
1989年 | 1篇 |
1987年 | 3篇 |
1984年 | 1篇 |
1981年 | 5篇 |
1980年 | 1篇 |
1978年 | 3篇 |
1977年 | 5篇 |
1976年 | 3篇 |
1975年 | 5篇 |
排序方式: 共有260条查询结果,搜索用时 15 毫秒
111.
112.
Work function (WF) can be measured using the Kelvin probe (KP) technique to characterize surface behavior of micro/nanostructures grown on substrates such as metals or semiconductors. However, for such micro/nanostructures, substrates with different WF can strongly affect the measurements if they are exposed directly to face the Kevin probe tip. In this article, a model is proposed to investigate the WF of sparse ZnO nanorods grown on an Si substrate. It is demonstrated that theoretical results from the model are consistent with experimental observations performed using a KP system. 相似文献
113.
Swetarekha Ram Mudavath Rahul Chauhan Kunal Agarwal 《Philosophical Magazine Letters》2013,93(8):545-553
The structural, electronic, and magnetic properties of ferromagnetic Heusler alloys Co2XY (X?=?Cr, Mn, Fe; Y?=?Al, Ga) have been investigated by means of the all-electron full-potential linearized augmented plane wave method within the generalized gradient approximation for the exchange and correlation potential. The main focus of this study is to elaborate the changes brought about in the electronic and the magnetic properties by applied pressure. The calculated total spin magnetic moments of all the compounds are found to be in good agreement with experiments. Out of these compounds, Co2CrAl is found to be perfectly half-metallic (HM) and the other compounds are found to be nearly HM. Thus the HM to metal transition was observed at 75?GPa pressure for Co2CrAl and the nearly half-metal to half-metal transition was observed at 40?GPa and 18?GPa for Co2CrGa and Co2MnAl, respectively, while no transition is observed in other compounds under investigation. It can be clearly seen that pressure affects the minority spin states rather than the majority states, leading to a slight reconstruction of the minority spin states with a shift in the Fermi level driving the above-mentioned transition. 相似文献
114.
Al–Pb ribbons containing 1?at.%?Pb have been produced by melt-spinning and subsequently investigated by high-resolution transmission electron microscopy. It is shown that the lattice mismatch of about 22% between the nanometre-sized Pb inclusions and the surrounding Al matrix is accommodated by a periodic array of misfit dislocations at the Al–Pb interface. The closing failures of Burgers circuits drawn around misfit dislocations on {111} and {100} facets identify the corresponding Burgers vectors as (a 0/4)? 211 ? and (a 0/2)? 110?, respectively. The Burgers vector of (a 0/4)? 211? corresponds to the projected edge part of a 60° (a 0/2)? 110? dislocation. The Pb inclusions themselves appear to be free of defects. 相似文献
115.
Alexander Skiles 《Canadian journal of philosophy》2015,45(1):100-112
Fine (1994 “Essence and Modality”, Philosophical Perspectives, 8: 1–16) is widely thought to have refuted the simple modal account of essence, which takes the essential properties of a thing to be those it cannot exist without exemplifying. Yet, a number of philosophers have suggested resuscitating the simple modal account by appealing to distinctions akin to the distinction Lewis (1983. “New Work For a Theory of Universals”, Australasian Journal of Philosophy, 61: 343–377; 1986. On the Plurality of Worlds. Oxford: Blackwell) draws between sparse and abundant properties, treating only those in the former class as candidates for essentiality. I argue that ‘sparse modalism’ succumbs to counterexamples similar to those originally posed by Fine, and fails to capture paradigmatic instances of essence involving abundant properties and relations. 相似文献
116.
Justin B. Leaf Mitchell Taubman Jeremy Leaf Stephanie Dale Kathleen Tsuji Alyne Kassardjian 《Child & family behavior therapy》2015,37(4):321-334
We evaluated the cool versus not cool procedure to teach social behaviors to three children diagnosed with autism. The researchers demonstrated each targeted behavior four times (two appropriate and two inappropriate demonstrations). Each participant then had to discriminate and state why the demonstration was appropriate or inappropriate. This was followed by the participant role-playing the targeted behavior with the researchers. We utilized a multiple baseline design to evaluate the procedure and the results indicated that the procedure was effective in teaching each targeted social behavior. 相似文献
117.
OFRA ESHEL 《The Psychoanalytic quarterly》2013,82(4):925-963
This paper focuses on the analyst's “presencing” (being there) within the patient's experiential world and within the grip of the psychoanalytic process, and the ensuing deep patient–analyst interconnectedness, as a fundamental dimension of analytic work. It engenders new possibilities for extending the reach of psychoanalytic treatment to more disturbed patients. Here patient and analyst forge an emergent new entity of interconnectedness or “withness” that goes beyond the confines of their separate subjectivities and the simple summation of the two. Using a detailed clinical illustration of a difficult analysis with a severely fetishistic‐masochistic patient, the author describes the kind of knowledge, experience, and powerful effects that come into being when the analyst interconnects psychically with the patient in living through the process, and that relate specifically to the analyst's compassion. 相似文献
118.
119.
Drina Candilis-Huisman 《International Forum of Psychoanalysis》2017,26(1):43-48
AbstractThis article offers a reflection on conception, pregnancy, and the first mother–infant relationships of mothers with motoric and sensory disabilities. Based on more than 13 years of experience with women with motoric and sensory disabilities who had a desire for a child, the author analyzes this unusual situation from three different points of view: the medical help to procreate, meeting a partner for the mother, and the link with the initial maternal family, i.e. the mother’s mother. The last part concerns the possibility of the development of a mother–infant relationship when bodily function is lacking. 相似文献
120.
Accountability Systems and Group Norms: Balancing the Risks of Mindless Conformity and Reckless Deviation
下载免费PDF全文
![点击此处可从《决策行为杂志》网站下载免费的PDF全文](/ch/ext_images/free.gif)
In dynamic task environments, decision makers are vulnerable to two types of errors: sticking too closely to the rules (excessive conformity) or straying too far from them (excessive deviation). We explore the effects of process and outcome accountability on the susceptibility to these errors. Using a multiple‐cue probability‐learning task, we show that process accountability encourages conformity errors and outcome accountability promotes deviation errors. Two additional studies explore the moderating effects of self‐focused and other‐focused group norms. Self‐focused norms reduce the effect of process accountability on excessive conformity. Other‐focused norms reduce the effect of outcome accountability on excessive deviation. Our results qualify prevailing claims about the benefits of process over outcome accountability and show that those benefits hinge on prevailing group norms, on the effectiveness of prescribed decision rules, and on the amount of irreducible uncertainty in the prediction task. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献