全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Robert L. Williams , Joseph Freach ...
来源:[J].Field Crops Research(IF 2.474), 2014, Vol.156, pp.272-280Elsevier
摘要:Abstract(#br)Timor-Leste is a small predominantly agrarian society based on subsistence agriculture with maize as the key staple crop and food. Maize cropping is predominantly shifting in a slash and burn system with weed management and soil fertility key issues to farmers. ...
作者:... Eugene W. Outerbridge , G.Michael Davis , Robert L. Williams
来源:[J].The Journal of Pediatrics(IF 4.035), 1998, Vol.133 (2), pp.193-200Elsevier
摘要:Abstract(#br)Objective: To evaluate the long-term pulmonary sequelae of survivors of bronchopulmonary dysplasia (BPD) of sufficient severity to have required supplemental oxygen for at least 1 month after term. Study design: Fifteen patients with a mean age of 1.1 years were...
作者:Robert L. Williams , Meng-Yun Chen , Jeffrey M. Seaton
来源:[J].Journal of Science Education and Technology(IF 0.94), 2003, Vol.12 (1), pp.1-12Springer
摘要:Abstract(#br)This paper describes a unique project using commercial haptic interfaces to augment the teaching of simple machines in elementary school. Haptic interfaces provide a sense of touch and force to the human user from a virtual model on the computer. Since force is centr...
作者:Robert L. Williams , Crystal Romney ...
来源:[J].Journal of General Internal Medicine(IF 3.278), 2015, Vol.30 (6), pp.758-767Springer
摘要:Abstract(#br) Background(#br)Research suggests stereotyping by clinicians as one contributor to racial and gender-based health disparities. It is necessary to understand the origins of such biases before interventions can be developed to eliminate them. As a first step toward thi...
作者:Robert L. Williams , Paolo Gallina
来源:[J].Journal of Intelligent and Robotic Systems(IF 0.827), 2002, Vol.35 (2), pp.203-219Springer
摘要:Abstract(#br)Cable-direct-driven robots and haptic interfaces are appealing because of their structural simplicity, high stiffness, and high exerted wrench-to-weight ratio. A major drawback is that cables can only exert tension. Therefore, actuation redundancy is required to appl...
作者:Elvedin Kljuno , Robert L. Williams
来源:[J].Journal of Intelligent and Robotic Systems(IF 0.827), 2008, Vol.52 (1), pp.79-99Springer
摘要:Abstract(#br)This paper introduces a cable-suspended robot, the vehicle simulation system, designed for pilot and driver training. The main idea of this work is to make a system that will provide realistic simulations of vehicle motion using virtual reality and a motion plat...
作者:Alberto Trevisani , Paolo Gallina , Robert L. Williams
来源:[J].Journal of Intelligent and Robotic Systems(IF 0.827), 2006, Vol.46 (1), pp.73-94Springer
摘要:Abstract(#br)This article presents a new planar translational cable-direct-driven robot (CDDR) with actuation redundancy and supported against loading normal to the motion plane with a passive planar two-degree-of-freedom SCARA-type (Selective Compliance Assembly Robot Arm) seria...
作者:... Martha M. Quezado , Robert L. Williams , Vivian Y. Luo
来源:[J].Pediatric and Developmental Pathology(IF 0.859), 2000, Vol.3 (3), pp.203-210Springer
摘要:Abstract(#br)This review consolidates information gleaned from several case reports and larger series on Ewing's sarcoma family of tumors (EFT) involving structures related to and found in the central nervous system (CNS). These tumors involve the skull, the spinal column, adjace...

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