全文获取类型
收费全文 | 145篇 |
免费 | 10篇 |
国内免费 | 1篇 |
专业分类
化学工业 | 19篇 |
金属工艺 | 2篇 |
机械仪表 | 2篇 |
建筑科学 | 11篇 |
轻工业 | 33篇 |
一般工业技术 | 13篇 |
冶金工业 | 41篇 |
自动化技术 | 35篇 |
出版年
2023年 | 1篇 |
2022年 | 2篇 |
2021年 | 5篇 |
2020年 | 2篇 |
2019年 | 2篇 |
2018年 | 6篇 |
2017年 | 2篇 |
2016年 | 7篇 |
2015年 | 4篇 |
2014年 | 1篇 |
2013年 | 7篇 |
2012年 | 16篇 |
2011年 | 7篇 |
2010年 | 4篇 |
2009年 | 10篇 |
2008年 | 11篇 |
2007年 | 10篇 |
2006年 | 5篇 |
2005年 | 6篇 |
2004年 | 3篇 |
2003年 | 5篇 |
2002年 | 4篇 |
2000年 | 2篇 |
1999年 | 3篇 |
1998年 | 1篇 |
1997年 | 4篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 5篇 |
1993年 | 2篇 |
1992年 | 2篇 |
1990年 | 1篇 |
1989年 | 2篇 |
1987年 | 2篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1972年 | 2篇 |
1971年 | 1篇 |
1969年 | 1篇 |
1966年 | 1篇 |
1958年 | 1篇 |
排序方式: 共有156条查询结果,搜索用时 11 毫秒
1.
A GENTRIFICATION RESEARCH AGENDA FOR THE 1990s 总被引:1,自引:0,他引:1
Daphne Spain 《Journal of Urban Affairs》1992,14(2):125-134
ABSTRACT: This paper identifies a range of gentrification research topics meriting further attention in the 1990s. These topics are situated in the theoretical contexts stressing the primacy of production of gentrifiable spaces and consumption of housing by renovators. The complementarity of consensus and conflict in community formation is also noted. Five hypotheses that could be tested with 1990 census data are proposed. They deal with: the role of young households, gender, the proximity of home and workplace, residential segregation, and urban/rural similarities in community conflict. The paper ends with an acknowledgment of the need for continued theoretical and methodological diversity in the field. 相似文献
2.
We predicted low perceived caregiver control over caregiving failure to be related to (a) coercive or abusive parenting and (b) affective reactions to "difficult" children. On the basis of a multidimensional scaling analysis of the Parent Attribution Test (Study 1), we constructed a scale (PCF) that assessed perceived balance of control over caregiving failure (attributed control to caregivers vs attributed control to children). In Study 2, we found low PCF to predict abusiveness and nonabusive coerciveness among mothers in counseling at a child abuse agency. Additionally, we found low PCF to predict experienced annoyance/irritation among unrelated mothers interacting with children at relatively high risk for abuse (compared with their lower-risk siblings). We interpreted results as demonstrating the potential importance of low perceived control as a moderator of negative affect in response to difficult children. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
3.
We present a flexible initial framework for defining self‐motivated, self‐aware agents in simulated worlds, planning continuously so as to maximize long‐term rewards. While such agents employ reasoned exploration of feasible sequences of actions and corresponding states, they also behave opportunistically and recover from failure, thanks to their continual plan updates and quest for rewards. Our framework allows for both specific and general (quantified) knowledge and for epistemic predicates such as knowing‐that and knowing‐whether. Because realistic agents have only partial knowledge of their world, the reasoning of the proposed agents uses a weakened closed‐world assumption; this has consequences for epistemic reasoning, in particular introspection. The planning operators allow for quantitative, gradual change and side effects such as the passage of time, changes in distances and rewards, and language production, using a uniform procedural attachment method. Question answering (involving introspection) and experimental runs are shown for our particular agent ME in a simple world, demonstrating the value of continual deliberate, reward‐driven planning. Though the primary merit of agents definable in our framework is that they combine all of the aforementioned features, they can also be configured as single or multiple goal‐seeking agents and as such perform comparably with some recent experimental agents. 相似文献
4.
Multi-Class Segmentation with Relative Location Prior 总被引:2,自引:0,他引:2
Stephen Gould Jim Rodgers David Cohen Gal Elidan Daphne Koller 《International Journal of Computer Vision》2008,80(3):300-316
Multi-class image segmentation has made significant advances in recent years through the combination of local and global features.
One important type of global feature is that of inter-class spatial relationships. For example, identifying “tree” pixels
indicates that pixels above and to the sides are more likely to be “sky” whereas pixels below are more likely to be “grass.”
Incorporating such global information across the entire image and between all classes is a computational challenge as it is
image-dependent, and hence, cannot be precomputed.
In this work we propose a method for capturing global information from inter-class spatial relationships and encoding it as
a local feature. We employ a two-stage classification process to label all image pixels. First, we generate predictions which
are used to compute a local relative location feature from learned relative location maps. In the second stage, we combine
this with appearance-based features to provide a final segmentation. We compare our results to recent published results on
several multi-class image segmentation databases and show that the incorporation of relative location information allows us
to significantly outperform the current state-of-the-art. 相似文献
5.
Michael Kenteris Damianos Gavalas Daphne Economou 《Multimedia Tools and Applications》2011,54(2):241-262
This paper introduces an approach of enhancing the tourism experience by incorporating a tool that adopts a “web-to-mobile”
model into tourism websites that allows for the adaptation of personalized tourism web content to be transferred to a mobile
application hosted at users’ mobile device. These applications upon installation to mobile devices allow for browsing of adapted
multimedia content with no requirement for constant network connection. Furthermore so we convey the development experiences
of a multiplatform mobile tourist guide aimed at producing a personalized mobile guide application used in both an online
and offline modes offering services to tourists such as a personal profiling-based recommendation system, a commenting system
and location-based services. This paper focuses on the design, implementation and usability case study of a Multi-Platform
Tourist Guide system for the Municipal Council of Mytilene, Greece. 相似文献
6.
Green CS Sugarman MA Medford K Klobusicky E Daphne Bavelier 《Computers in human behavior》2012,28(3):984-994
There is now a substantial body of work demonstrating that action video game experience results in enhancements in a wide variety of perceptual skills. More recently, several groups have also demonstrated improvements in abilities that are more cognitive in nature, in particular, the ability to efficiently switch between tasks. In a series of four experiments, we add to this body of work, demonstrating that the action video game player advantage is not exclusively due to an ability to map manual responses onto arbitrary buttons, but rather generalizes to vocal responses, is not restricted to tasks that are perceptual in nature (e.g. respond to a physical dimension of the stimulus such as its color), but generalizes to more cognitive tasks (e.g. is a number odd or even), and is present whether the switch requires a goal-switch or only a motor switch. Finally, a training study establishes that the relationship between the reduction in switch cost and action game playing is causal. 相似文献
7.
Maternal attributions and child neonatal status at birth were assessed as predictors of infant maltreatment (harsh parenting and safety neglect). The population included low-income, low-education families who were primarily Hispanic. Child maltreatment during the 1st year of life (N = 73) was predicted by neonatal status (low Apgar scores, preterm status), as moderated by mothers' attributions. The highest levels of maltreatment were shown within dyads that included a mother with low perceived power and an at-risk infant. Partial support was found for maternal depressive symptoms as mediators of harsh parenting among at-risk infants. It is suggested that lack of perceived parental power constrains investment in protective relationships and fosters sensitization to potential threat. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
8.
AbstractWhen it comes to issues of housing policy, remote Indigenous housing often presents the extreme case. The failures of housing policy are most acute in remote Indigenous Australia, but despite the need to learn from the policy mistakes of the past, there has been little detailed analysis of the policy history. Through documentary and empirical analysis, we show that policies have either failed to be adapted to cultural and geographic contexts or, when they have been culturally responsive, they have lacked attention to the complexities of service delivery. Despite differences in policy settings, the long view is one of the normalization of Indigenous communities, although research points to the need for culturally appropriate arrangements. We argue that rather than politically motivated short-termism, governments need to develop a medium- to long-term approach that approaches policy solutions incrementally, builds capacity within the state and Indigenous communities, and is based on the evidence. 相似文献
9.
Simmonds Daphne M. Campbell Katia Hasley Joseph 《Information Systems and E-Business Management》2021,19(2):597-619
Information Systems and e-Business Management - The level of viral diffusion expected after a technology product or service is launched is important for determining the marketing budget,... 相似文献
10.
Daphne Spain 《Journal of the American Planning Association. American Planning Association》2013,79(3):249-262
The faces of the two girls featured in Danuta Rothschild's image Women's Shelter express both despair and hope. Part of a series of works on urban homelessness, the painting depicts them seated on the steps of a shelter for battered women. Such “redemptive places” and the hope they offer to desperate lives are the subject of Daphne Spain's Longer View. Spain recounts the inception of these places in the U.S. early in the last century and describes their latest incarnations in “Charitable Choice” initiatives. Danuta Rothschild emigrated from Poland in 1971 and works daily in her studio in Venice, California. The subject matter of her paintings has included the Holocaust, Native Americans, threats of chemical war in the Middle East, and the natural world. Her work can be viewed on her Web site at <http://www.danutastudio.com> and she can be contacted at <danuta@danutastudio.com>. A century ago, millions of Europeans, African Americans, and single women in search of work arrived in American cities. Religiously motivated volunteers met these newcomers with settlement houses, vocational schools, and boardinghouses that served as temporary respite from harsh urban conditions. Such “redemptive places” saved cities from demographic chaos by delivering social services to the poor well before the emergence of New Deal programs. Today, the federal government is actively promoting religious solutions to urban poverty. The “Charitable Choice” provision included in the 1996 welfare reform legislation makes faith-based organizations eligible to provide services to the poor. Redemptive places, therefore, are as important now as they were in the past. Planners can facilitate the creation of redemptive places by communicating the details of Charitable Choice to state and local agencies that outsource social services, identifying eligible properties, and reducing legal barriers to their existence. 相似文献