Results 71 to 80 of about 26,083 (287)
FlexMat, EarlyView.A multi‐material and dual‐stimulus coupled actuation micro‐gear (MDCAMG) is developed via femtosecond‐laser 3D printing combined with magnetic nanoparticle absorption, enabling integrated environmental sensing and remote actuation at the microscale. The device incorporates a pH‐responsive hydrogel matrix for autonomous swelling/shrinking and a magnetic
Sida Peng, Shengzhi Sun, Jian Li, Yi Zhu
wiley +1 more source
Rotating and positive-displacement pumps for low-thrust rocket engines. Volume 1: Pump Evaluation and design [PDF]
Rotating and positive displacement pumps of various types were studied for pumping liquid fluorine for low-thrust, high-performance rocket engines. Included in the analysis were: centrifugal, pitot, Barske, Tesla, drag, gear, vane, axial piston, radial ...
Csomor, A., Macgregor, C.
core +1 more source
Exploring Belonging Through the Student Union: The Power of Familiar Faces and Comfortable Spaces
New Directions for Higher Education, EarlyView.ABSTRACT Since their origin, college unions have played a significant role in fostering a sense of belonging and advancing the academic mission of colleges. However, published empirical studies remain scarce due to the focus of college union professionals’ work on both student development and facility operations.
Katheryn Paynter‐Fanning +1 more
wiley +1 more source
ActuatorsThis study investigates the dynamic behavior of the suction-side lubrication gap between bushing and gear in external gear pumps (EGPs), with emphasis on how surface texturing and bushing micromotion influence the effective stiffness and damping of the ...
Masoud Hatami Garousi +3 more
doaj +1 more source
Microoptomechanical pumps assembled and driven by holographic optical vortex arrays
, 2004 Beams of light with helical wavefronts can be focused into ring-like optical traps known as optical vortices. The orbital angular momentum carried by photons in helical modes can be transferred to trapped mesoscopic objects and thereby coupled to a ...
Allen +20 more
core +1 more source
Health Economics, EarlyView.ABSTRACT Syphilis, a sexually transmitted infection that can lead to serious health complications, was almost eliminated in the United States by 2000. But since then, its incidence began to increase, recently reaching a 60‐year peak. We suggest that the introduction of the highly active antiretroviral therapy (HAART) drug regimen, which transformed HIV
David Beheshti +2 more
wiley +1 more source
Journal of Marine Science and EngineeringExternal gear pumps with an involute tooth profile are used in many applications because of their simple shape, low production cost, and excellent reliability.
Hosung Jang, Sangwon Ji
doaj +1 more source
Rotor systems research aircraft predesign study. Volume 4: Preliminary draft detail specification [PDF]
The RSRA requirements are presented in a detail specification format. Coverage of the requirements includes the following headings: (1) aircraft characteristics, (2) general features of design and construction, (3) aerodynamics, (4) structural design ...
Linden, A. W., Miller, A. N.
core +1 more source
Human Resource Management, EarlyView.ABSTRACT Despite the increasing application of digital technology in management practices, its implications for employee involvement and high involvement work systems (HIWSs) remain largely unexplored. Based on an in‐depth qualitative case study of Tencent—one of China's largest information technology companies—this article explores whether and in what
Wei Wei, Xiaolan Fu
wiley +1 more source
International Insolvency Review, EarlyView.Abstract The United Nations Commission on International Trade Law (UNCITRAL) has produced the most robust international insolvency regime applicable to countries around the world. The Model Law on Cross‐Border Insolvency (1997) is widely accepted and already very popular among African countries.
Pontian N. Okoli
wiley +1 more source