全文获取类型
收费全文 | 735篇 |
免费 | 34篇 |
国内免费 | 6篇 |
专业分类
电工技术 | 18篇 |
化学工业 | 84篇 |
金属工艺 | 15篇 |
机械仪表 | 24篇 |
建筑科学 | 18篇 |
矿业工程 | 1篇 |
能源动力 | 23篇 |
轻工业 | 86篇 |
水利工程 | 5篇 |
石油天然气 | 3篇 |
无线电 | 90篇 |
一般工业技术 | 177篇 |
冶金工业 | 94篇 |
原子能技术 | 2篇 |
自动化技术 | 135篇 |
出版年
2023年 | 12篇 |
2022年 | 23篇 |
2021年 | 19篇 |
2020年 | 22篇 |
2019年 | 19篇 |
2018年 | 32篇 |
2017年 | 24篇 |
2016年 | 16篇 |
2015年 | 15篇 |
2014年 | 19篇 |
2013年 | 34篇 |
2012年 | 26篇 |
2011年 | 33篇 |
2010年 | 32篇 |
2009年 | 30篇 |
2008年 | 11篇 |
2007年 | 20篇 |
2006年 | 21篇 |
2005年 | 15篇 |
2004年 | 18篇 |
2003年 | 6篇 |
2002年 | 8篇 |
2001年 | 14篇 |
2000年 | 10篇 |
1999年 | 8篇 |
1998年 | 26篇 |
1997年 | 22篇 |
1996年 | 12篇 |
1995年 | 12篇 |
1994年 | 16篇 |
1993年 | 19篇 |
1992年 | 11篇 |
1991年 | 17篇 |
1990年 | 5篇 |
1989年 | 6篇 |
1988年 | 7篇 |
1987年 | 13篇 |
1986年 | 6篇 |
1985年 | 11篇 |
1984年 | 8篇 |
1983年 | 8篇 |
1982年 | 10篇 |
1981年 | 11篇 |
1980年 | 12篇 |
1979年 | 8篇 |
1978年 | 6篇 |
1977年 | 11篇 |
1976年 | 13篇 |
1975年 | 4篇 |
1972年 | 4篇 |
排序方式: 共有775条查询结果,搜索用时 562 毫秒
771.
Malakar Santanu Arora Vinkel Kumar Munshi Mohona Yadav Dhiraj Kumar Pou K. R. Jolvis Deb Saptashish Chandra Ram 《Food science and biotechnology》2023,32(10):1303-1335
Food Science and Biotechnology - Drying is an energy-intensive process that can be reduced by the application of pretreatment prior to drying to enhance mass transfer and minimize energy... 相似文献
772.
Journal of Computational Electronics - Surface plasmons (SP) can be effectively tuned in the entire UV–visible–near-infrared (NIR) spectrum, bringing together a variety of optical... 相似文献
773.
Arora Ginni Dubey Ashwani Kumar Jaffery Zainul Abdin Rocha Alvaro 《Neural computing & applications》2023,35(11):7989-8015
Neural Computing and Applications - Among various types of skin diseases, skin cancer is the deadliest form of the disease. This paper classifies seven types of skin diseases: Actinic keratosis and... 相似文献
774.
Gurinderjeet Kaur Prashant Singh Rana Vinay Arora 《International journal of imaging systems and technology》2023,33(1):340-361
To propose and implement an automated machine learning (ML) based methodology to predict the overall survival of glioblastoma multiforme (GBM) patients. In the proposed methodology, we used deep learning (DL) based 3D U-shaped Convolutional Neural Network inspired encoder-decoder architecture to segment the brain tumor. Further, feature extraction was performed on these segmented and raw magnetic resonance imaging (MRI) scans using a pre-trained 2D residual neural network. The dimension-reduced principal components were integrated with clinical data and the handcrafted features of tumor subregions to compare the performance of regression-based automated ML techniques. Through the proposed methodology, we achieved the mean squared error (MSE) of 87 067.328, median squared error of 30 915.66, and a SpearmanR correlation of 0.326 for survival prediction (SP) with the validation set of Multimodal Brain Tumor Segmentation 2020 dataset. These results made the MSE far better than the existing automated techniques for the same patients. Automated SP of GBM patients is a crucial topic with its relevance in clinical use. The results proved that DL-based feature extraction using 2D pre-trained networks is better than many heavily trained 3D and 2D prediction models from scratch. The ensembled approach has produced better results than single models. The most crucial feature affecting GBM patients' survival is the patient's age, as per the feature importance plots presented in this work. The most critical MRI modality for SP of GBM patients is the T2 fluid attenuated inversion recovery, as evident from the feature importance plots. 相似文献
775.