全文获取类型
收费全文 | 60篇 |
免费 | 7篇 |
专业分类
化学工业 | 9篇 |
金属工艺 | 4篇 |
机械仪表 | 3篇 |
能源动力 | 1篇 |
轻工业 | 10篇 |
无线电 | 6篇 |
一般工业技术 | 14篇 |
冶金工业 | 13篇 |
自动化技术 | 7篇 |
出版年
2021年 | 1篇 |
2020年 | 2篇 |
2019年 | 1篇 |
2018年 | 2篇 |
2016年 | 4篇 |
2015年 | 2篇 |
2014年 | 1篇 |
2013年 | 5篇 |
2012年 | 5篇 |
2011年 | 5篇 |
2010年 | 4篇 |
2009年 | 2篇 |
2008年 | 7篇 |
2007年 | 1篇 |
2006年 | 1篇 |
2005年 | 2篇 |
2003年 | 2篇 |
2002年 | 2篇 |
1998年 | 4篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1993年 | 1篇 |
1988年 | 2篇 |
1987年 | 1篇 |
1984年 | 1篇 |
1978年 | 2篇 |
1976年 | 2篇 |
1975年 | 1篇 |
排序方式: 共有67条查询结果,搜索用时 15 毫秒
1.
Enrique Álvarez‐Casado Bing Zhang Sonia Tello Sandoval Mondelo Pedro 《人机工程学与制造业中的人性因素》2012,22(3):I-I
The following article from Human Factors and Ergonomics in Manufacturing & Service Industries, “Using ergonomic digital human modeling in evaluation of workplace design and prevention of workrelated musculoskeletal disorders onboard small fishing vessel,” by Enrique Álvarez‐Casado, Bing Zhang, Sonia Tello Sandoval and Mondelo Pedro, published online on October 11, 2011 in Wiley Online Library ( www.onlinelibrary.wiley.com ), has been retracted by agreement between the authors, the journal Editors‐in‐Chief, Waldemar Karwowski and Gavriel Salvendy, and Publisher Wiley Periodicals, Inc. The retraction has been agreed as these articles were mistakenly published after being rejected. 相似文献
2.
A. Norman J. Berman K. Brehm M. Drake A. Dyer J. Frisby C. Govil C. Hinchey L. Heuer J. Ke S. Kejriwal K. Kuang S. Keyburn S. Ler K. Powers A. Robertson J. Sanghai C. Schulze J. Schieck J. Sussman L. Tan A. Tello R. Wang K. Yan T. Zeinullayev 《Computational Economics》2012,39(3):243-257
Consumers check few sites in online purchases. Previous research and experiments we perform demonstrate that consumers can not calculate the optimal strategy for price search. They use heuristics whose performance is better than random and less than optimal. To investigate online price search performance we survey student online textbook purchases. Students achieve good performance because they start with a good strategy and online market organization of marketplace and meta-search sites. An important factor is that algorithms at sites searched perform calculations that reduce the computational complexity of the search. 相似文献
3.
H.A. Tello AlonsoAmelia C. Rubiolo Susana E. Zorrilla 《Journal of food engineering》2012,109(3):490-495
Immersion chilling and freezing (ICF) consist of soaking foods in a low freezing point liquid medium maintained at a low temperature that are considered secondary refrigerants. Data related to transport properties for the refrigerating media used in ICF processes are scarce, particularly for ternary and higher order systems. The objective of this work was to develop a model for the prediction of diffusion coefficients for systems of interest for ICF processes. The generalized Maxwell-Stefan equations were used in the model development. Data obtained from literature corresponding to Fick diffusion coefficients of the binary systems NaCl-H2O and KCl-H2O, and the ternary system NaCl-KCl-H2O, were compared with predicted values. Results were satisfactory, errors of the main diffusion coefficients less than 13.5% being obtained. These results may be extended to the typical range of conditions of ICF, where no data are available in literature to date. 相似文献
4.
Marco A. Serrato Juan Tello Angel Díaz Sergio García Juan C. Castillo 《International Transactions in Operational Research》2010,17(1):119-143
The state of Michoacán, one of the states with the lowest economic development in Mexico, has been historically recognized because of its potential for tourism activities. The revenues coming from this economic sector, as well as the number of tourists who visit this state have significantly increased during the last few years. A survey was conducted on tourists who visited Michoacán, in order to determine the visitors' profile and their satisfaction levels during their visit. A cluster analysis was then used to categorize the lifestyle of these tourists into five different segments, to be able to develop the best tourism products, marketing strategies and aid the decision-making process of government and private organizations related to this sector. A regression analysis was also performed to identify the variables that determine the satisfaction of these tourists. The results are satisfactory in the sense that the actions taken, which were based on this research and led by the Ministry of Tourism of Michoacán and the Ministry of Tourism of Mexico, have attracted more national and international groups, and have also increased the revenues, profits and new investments reported by private organizations related to this economic sector. 相似文献
5.
6.
7.
TelloValencia 《电信技术》2002,(3):75-77
3G的出现意味着需要测试更多的基站、检查新的更加复杂的参数 ,同时出现破坏性干扰的概率也正在不断提高。由于新的安装项目中共存了多个阶段的2G、2.5G和其他无线系统 ,并且GSM、TDMA、cdmaOne、HSCSD、GPRS、EDGE、EGPRS、IS -136B/HS和IS-95B系统在多年内都有可能同时运行 ,这样 ,基站已经成为不能预测的、连续变化的、为不断增长的各种移动设备服务的老技术平台和新技术平台的组合。在一个基站中 ,可能会遇到几种蜂窝系统发出的信息及各种来源的干扰 ,如广播、寻呼和本地网络服… 相似文献
8.
M Rufo-Campos M Fernández-López E Castro MP Tello N Salazar 《Canadian Metallurgical Quarterly》1998,26(153):735-738
OBJECTIVE AND MATERIAL: We are carried out a retrospective study of 43 patients, 21 males and 22 women entered during the period of infancy in the Service of Neurology of our hospital and with diagnostic of any type of partial seizure, in an intent to correlate a series of clinical parameters, electroneurophysiologics and initial therapeutics with their factors follow-up periods. RESULTS: They are a half age of 7.11 months (1-19), consecutive being controlled for a period of time of 40 months (6-96). We have settled down a relationship between the drugs utilized in the first seizure and that other that they remained in their last revision, the current state of the critical manifestations, and the existence or not of an agreement between the e diagnosis emitted to the discharge and the development of the illness. CONCLUSION: After the present study, we thought that the current classification of the epileptic seizures is insufficient in the age of the infant, with presages much more complexes. 相似文献
9.
10.