Results 31 to 40 of about 145,956 (209)

The Chandra X-Ray Observatory's Radiation Environment and the AP-8/AE-8 Model

, 2000
The Chandra X-ray Observatory (CXO) was launched on July 23, 1999 and reached its final orbit on August 7, 1999. The CXO is in a highly elliptical orbit, approximately 140,000 km x 10,000 km, and has a period of approximately 63.5 hours (~ 2.65 days). It
Butt, Yousaf M., Mueller-Mellin, Reinhold, Plucinsky, Paul P., Virani, Shanil N.   +3 more
core   +2 more sources

Design and Kinematics Analysis of Non-circular Belt Transmission

Jixie chuandong, 2015
To the problems of difficult to meet the complex parts structure manufacturing of a circular belt drive mechanical transmission on the time-varying transmission ratio and specific output requirements,a non-circular belt drive mechanism of variable speed ...
Ju Hongxiang
doaj  

Discovery Learning Experiments in a New Machine Design Laboratory [PDF]

, 2013
A new Machine Design Laboratory at Marquette University has been created to foster student exploration with hardware and real-world systems. The Laboratory incorporates areas for teaching and training, and has been designed to promote “hands-on” and ...
Anton, Fernando Rodriguez, Nagurka, Mark L.   +1 more
core   +1 more source

Clocked Atom Delivery to a Photonic Crystal Waveguide [PDF]

, 2018
Experiments and numerical simulations are described that develop quantitative understanding of atomic motion near the surfaces of nanoscopic photonic crystal waveguides (PCWs).
Burgers, A. P., Kimble, H. J., Martin, M. J., McClung, A. C., Muniz, J. A., Peng, L. S.   +5 more
core   +3 more sources

摩擦带传动弹性滑动的动力学分析与试验

Jixie chuandong, 2010
Belts are widely applied to various machine.Elastic sliding is one of the characteristics of friction belt transmission,and it leads to inexact transmission ratio and transmission efficiency decreased of belt drive system.In order to investigate ...
王旭东, 熊平原
doaj  

Cable-Driven Actuation for Highly Dynamic Robotic Systems

, 2018
This paper presents design and experimental evaluations of an articulated robotic limb called Capler-Leg. The key element of Capler-Leg is its single-stage cable-pulley transmission combined with a high-gap radius motor.
Hutter, Marco, Hwangbo, Jemin, Kolvenbach, Hendrik, Tsounis, Vassilios   +3 more
core   +1 more source

液压自动车床V带传动可靠性优化设计

Jixie chuandong, 2008
The conventional design method of V-belt transmission is a selective design based on the criterion that belt transmission does not slip as well as it has the enough fatigue life.
覃岭, 谢君生, 梁东城
doaj  

Kinematics and traction properties of the V-belt transmission [PDF]

E3S Web of Conferences
The wide application of V-belt transmissions in various types of machinery requires analysing the operation of these transmissions, including consideration of their kinematic and force parameters.
Mamaev Alexey, Balabina Tatiana, Karelina Maria   +2 more
doaj   +1 more source

Transmission error in offset toothed double helical synchronous belt drives (in quasi-static condition)

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2020
Some studies have shown that offset toothed double helical synchronous belts (OTDHSB) have lower transmission noise and higher fatigue life than straight toothed synchronous belts (STSB).
Jianhua GUO, Lai WEI, ZhenZhen HU, Rui FAN, QingMing HU   +4 more
doaj   +1 more source

A Change in the Lightcurve of Kuiper Belt Contact Binary (139775) 2001 QG298 [PDF]

, 2011
New observations show that the lightcurve of Kuiper belt contact binary (139775) 2001 QG298 has changed substantially since the first observations in 2003.
Bernstein, Detal, Fabrycky, Fuentes, Gnat, Heggie, Kenyon, Kern, Lacerda, Lacerda, Leone, Mann, Murray-Clay, Nesvorný, Nesvorný, Noll, Pedro Lacerda, Perets, Press, Schlichting, Schlichting, Sheppard, Sheppard, Smith, Stansberry, Stephens, Takahashi, Trujillo   +27 more
core   +2 more sources