全文获取类型
收费全文 | 574篇 |
免费 | 18篇 |
国内免费 | 2篇 |
专业分类
电工技术 | 8篇 |
综合类 | 1篇 |
化学工业 | 104篇 |
金属工艺 | 19篇 |
机械仪表 | 20篇 |
建筑科学 | 16篇 |
能源动力 | 15篇 |
轻工业 | 28篇 |
水利工程 | 5篇 |
石油天然气 | 1篇 |
无线电 | 73篇 |
一般工业技术 | 107篇 |
冶金工业 | 61篇 |
原子能技术 | 7篇 |
自动化技术 | 129篇 |
出版年
2024年 | 3篇 |
2023年 | 8篇 |
2022年 | 24篇 |
2021年 | 22篇 |
2020年 | 31篇 |
2019年 | 26篇 |
2018年 | 20篇 |
2017年 | 16篇 |
2016年 | 27篇 |
2015年 | 14篇 |
2014年 | 16篇 |
2013年 | 21篇 |
2012年 | 29篇 |
2011年 | 28篇 |
2010年 | 13篇 |
2009年 | 28篇 |
2008年 | 22篇 |
2007年 | 24篇 |
2006年 | 9篇 |
2005年 | 20篇 |
2004年 | 13篇 |
2003年 | 13篇 |
2002年 | 5篇 |
2001年 | 3篇 |
2000年 | 3篇 |
1999年 | 4篇 |
1998年 | 30篇 |
1997年 | 13篇 |
1996年 | 13篇 |
1995年 | 9篇 |
1994年 | 8篇 |
1993年 | 5篇 |
1992年 | 9篇 |
1991年 | 6篇 |
1990年 | 8篇 |
1989年 | 6篇 |
1988年 | 10篇 |
1987年 | 7篇 |
1986年 | 2篇 |
1985年 | 3篇 |
1984年 | 2篇 |
1983年 | 2篇 |
1982年 | 3篇 |
1981年 | 2篇 |
1980年 | 2篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1974年 | 3篇 |
1973年 | 2篇 |
1970年 | 1篇 |
排序方式: 共有594条查询结果,搜索用时 0 毫秒
81.
Journal of Mechanical Science and Technology - Studying wing downwash, which is caused by the wingtip effect, and its influence on horizontal tail is important for aircraft design. In this work,... 相似文献
82.
83.
84.
Bui Hang Thanh Hussain Omar Khadeer Saberi Morteza Hussain Farookh 《World Wide Web》2021,24(2):483-509
World Wide Web - Blockchain, with its ever-increasing maturity and popularity, is being used in many different applied computing domains. To document the advancements made, researchers have... 相似文献
85.
86.
Tan?Lam?ChungEmail author Trong?Hieu?Bui Sang?Bong?Kim Myung?Suck?Oh Tan?Tien?Nguyen 《Journal of Mechanical Science and Technology》2004,18(8):1288-1296
Wall-following control problem for a mobile robot is to move it along a wall at a constant speed and keep a specified distance
to the wall.This paper proposes wall-following controllers based on Lyapunov function candidate for a two-wheeled mobile robot (MR) to
follow an unknown wall. The mobile robot is considered in terms of kinematic model in Cartesian coordinate system. Two wall-following feedback controllers
are designed: full state feedback controller and observer-based controller. To design the former controller, the errors of
distance and orientation of the mobile robot to the wall are defined, and the feedback controller based on Lyapunov function
candidate is designed to guarantee that the errors converge to zero asymptotically. The latter controller is designed based
on Busawon’s observer as only the distance error is measured. Additionally, the simulation and experimental results are included
to illustrate the effectiveness of the proposed controllers. 相似文献
87.
Duong Chi Nhan Luu Khoa Quach Kha Gia Bui Tien D. 《International Journal of Computer Vision》2019,127(5):437-455
International Journal of Computer Vision - The “interpretation through synthesis” approach to analyze face images, particularly Active Appearance Models (AAMs) method, has become one of... 相似文献
88.
Duong Chi Nhan Quach Kha Gia Luu Khoa Le T. Hoang Ngan Savvides Marios Bui Tien D. 《International Journal of Computer Vision》2019,127(6-7):957-971
International Journal of Computer Vision - This paper presents a novel subject-dependent deep aging path (SDAP), which inherits the merits of both generative probabilistic modeling and inverse... 相似文献
89.
Monomeric gold (Au) and silver (Ag) nanoparticle (NP) arrays are self‐assembled uniformly into anodized aluminium oxide (AAO) nanopores with a high homogeneity of greater than 95%, using ultrasonication. The monomeric metal NP array exhibits asymmetric plasmonic absorption due to Fano‐like resonance as interpreted by finite‐difference time‐domain (FDTD) simulation for the numbers up to 127 AuNPs. To examine gap distance‐dependent collective‐plasmonic resonance, the different dimensions of S, M, and L arrays of the AuNP diameters/the gap distances of ≈36 nm/≈66 nm, ≈45 nm/≈56 nm, and ≈77 nm/≈12 nm, respectively, are prepared. Metal NP arrays with an invariable nanogap of ≈50 nm can provide consistent surface‐enhanced Raman scattering (SERS) intensities for Rhodamine 6G (Rh6G) with a relative standard deviation (RSD) of 3.8–5.4%. Monomeric arrays can provide an effective platform for 2D hot‐electron excitation, as evidenced by the SERS peak‐changes of 4‐nitrobenzenethiol (4‐NBT) adsorbed on AgNP arrays with a power density of ≈0.25 mW µm‐2 at 514 and 633 nm. For practical purposes, the bacteria captured by 4‐mercaptophenylboronic acid are found to be easily destroyed under visible laser excitation at 514 nm with a power density of ≈14 mW µm‐2 for 60 min using Ag due to efficient plasmonic‐electron transfer. 相似文献
90.
Van‐Tien Bui Qitao Zhou Jong‐Nam Kim Jung‐Hwan Oh Kwan‐Woo Han Ho‐Suk Choi Sang‐Woo Kim Il‐Kwon Oh 《Advanced functional materials》2019,29(28)
Inspired by treefrog's toe pads that show superior frictional properties, herein, an industrially compatible approach is reported to make an efficient dielectric tribosurface design using customizable nonclose‐packed microbead arrays, mimicking the friction pads of treefrogs, in order to significantly enhance electrification performance and reliability of triboelectric nanogenerator (TENG). The approach involves using an engineering polymer to prepare a highly ordered large‐area concave film, and subsequently the molding of a convex patterned triboreplica in which the concave film is exploited as a reusable master mold. A nature‐inspired TENG based on the patterned polydimethylsiloxane (PDMS) paired with flat aluminum (Al) can generate a relatively high power density of 8.1 W m?2 even if a very small force of ≈6.5 N is applied. Moreover, the convex patterned PDMS‐based TENG possesses exceptional durability and reliability over 25 000 cycles of contact–separation. Considering the significant improvements in power generation of TENG; particularly at very small force, together with cost‐effectiveness and possibility of mass production, the present methodology may pave the way for large‐scale blue energy harvesting and commercialization of TENGs for many practical applications. 相似文献