首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   853篇
  免费   41篇
  国内免费   2篇
电工技术   2篇
综合类   2篇
化学工业   183篇
金属工艺   7篇
机械仪表   12篇
建筑科学   34篇
矿业工程   8篇
能源动力   14篇
轻工业   87篇
水利工程   6篇
石油天然气   4篇
无线电   54篇
一般工业技术   119篇
冶金工业   186篇
原子能技术   4篇
自动化技术   174篇
  2024年   2篇
  2023年   7篇
  2022年   18篇
  2021年   34篇
  2020年   21篇
  2019年   13篇
  2018年   23篇
  2017年   22篇
  2016年   21篇
  2015年   24篇
  2014年   26篇
  2013年   57篇
  2012年   41篇
  2011年   59篇
  2010年   39篇
  2009年   43篇
  2008年   44篇
  2007年   44篇
  2006年   35篇
  2005年   42篇
  2004年   31篇
  2003年   29篇
  2002年   20篇
  2001年   11篇
  2000年   12篇
  1999年   18篇
  1998年   12篇
  1997年   19篇
  1996年   10篇
  1995年   12篇
  1994年   10篇
  1993年   8篇
  1992年   6篇
  1991年   5篇
  1990年   4篇
  1989年   5篇
  1988年   3篇
  1987年   4篇
  1986年   11篇
  1985年   5篇
  1984年   6篇
  1983年   5篇
  1982年   10篇
  1981年   4篇
  1980年   2篇
  1979年   4篇
  1976年   4篇
  1972年   4篇
  1963年   1篇
  1955年   1篇
排序方式: 共有896条查询结果,搜索用时 0 毫秒
81.
Reports an error in "Treating traumatized OEF/OIF veterans: How does trauma treatment affect the clinician" by Sarah C. Voss Horrell, Dana R. Holohan, Lea M. Didion and G. Todd Vance (Professional Psychology: Research and Practice, 2011[Feb], Vol 42[1], 79-86). The word “While” was erroneously inserted in the first sentence of the “Clinician Factors” section. The corrected sentence is provided in the erratum. (The following abstract of the original article appeared in record 2011-04544-011.) The authors of this article describe the rewards and challenges for clinicians treating veterans who have served in Operation Enduring Freedom (OEF) and Operation Iraqi Freedom (OIF). Issues of vicarious trauma, secondary traumatic stress, compassion fatigue, and burnout are defined and reviewed, as are compassion satisfaction and posttraumatic growth. Patient, clinician, and organizational characteristics that are likely to affect clinicians working with this clinical population are discussed. Patient factors that may increase strain on clinicians are discussed such as age, likelihood of redeployment, comorbid conditions, attendance issues, and elevated risk for suicide and aggression. Clinician factors, such as theoretical orientation, training, supervision, military affiliation, personal trauma history, spirituality, social support, and self-care, are also discussed as possible risk and protective factors for vicarious trauma and burnout. Organizational influences, such as caseload size and diversity, clinician control and autonomy, use of evidence-based practices, availability of resources, rural isolation, and the philosophy of the clinic, are further discussed. Recommendations for ameliorating risks are discussed relative to each area and include allowing clinicians to plan their own appointments so as to balance their caseload of OEF/OIF veterans, attending to self-care practices, and having a supportive team with thorough training in evidence-based practices. Future empirical research is needed on risk and resiliency factors for clinicians working with traumatized OEF/OIF veterans given that this population is likely to grow. (PsycINFO Database Record (c) 2011 APA, all rights reserved)  相似文献   
82.
83.
84.
Columnar and (100)-oriented LaNiO3 thin films were prepared on silicon substrates by a chemical solution deposition (CSD) process using a 0.05 M solution. By reducing the individual layer thickness to 10 nm, columnar LaNiO3 films with a lateral grain size of ∼120 nm were obtained. The success of this approach required restricting the individual layer thickness to a value below the grain size observed for equiaxed films. This change in microstructure resulted in an improvement in conductivity. The columnar LaNiO3 film with a thickness of 300 nm showed a resistivity of 4.5 × 10−5Ω·cm, which is lower by one order of magnitude than that of fine-grain equiaxed films that typically result from CSD methods.  相似文献   
85.
86.
Two versions of a counselor self-efficacy (CSE) measure were administered to 110 prepracticum counselors: a general version, assessing perceived capability to perform basic helping skills and manage the session process with clients generally; and a client-specific version, tapping capability to perform the same behaviors with a specific, current client. Client-specific CSE was found to (a) relate moderately to strongly with general CSE over the course of four counseling sessions, (b) increase significantly over sessions, and (c) account for unique variance in counselors' evaluations of the quality of their sessions. Although it was not a useful direct predictor of clients' session ratings, higher client-specific CSE was associated with greater congruence between counselors' and clients' perceptions of session quality. Implications for further research and training are considered. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
87.
Investigated the role of a group structuring technique developed by G. Egan (1973, 1976) on the amount and depth of process involvement in 2 8-member counseling training groups consisting of graduate students (aged 21–56 yrs). The primary hypothesis was that the structured group would have a higher amount and depth of process involvement scores across time than the no-structure group. Results partly support the conclusion that early structure significantly affects process involvement among group members. Findings also indicate that both groups showed strong gains in depth of process involvement over time. Results are discussed in terms of previous research by R. L. Bednar et al (see record 1974-25973-001) and C. Y. Crews and J. Melnick (see record 1976-21029-001). It is suggested that future research should explore interactions between interpersonal style differences of individual members and various structuring techniques. (40 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
88.
Identifying polymers, additives and contaminants presents unique challenges. Fourier transform infrared spectroscopy (FT-IR) coupled with spectral searching techniques is a very efficient and powerful methodology to answer most identification questions. It is based on the unique IR spectrum characteristic of each compound. This paper outlines procedures employed in the identification of typical PVC formulations, starting with the resin and proceeding to impact modifier, process aids, lubricants, stabilizer system and fillers. The emphasis is on FT-IR microscopy as the most versatile approach requiring small samples and minimal to no sample preparation. Other commonly used FT-IR techniques are also outlined. Wet separation protocols, applicability and limitations as related to FT-IR analysis are discussed. Typical examples include vinyl siding, packaging and bottle formulations as well as contaminants often encountered in these formulations and raw materials.  相似文献   
89.
90.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号