نتایج جستجو برای: wheel lifetime

تعداد نتایج: 69236  

2005
Sergio M. Savaresi Mara Tanelli Carlo Cantoni Demos Charalambakis Fabio Previdi Sergio Bittanti

In road vehicles, wheel locking can be prevented by means of closedloop Anti-lock Braking Systems (ABS). Two output measured variables are usually considered for regulation: wheeldeceleration and wheel longitudinal slip. The traditional controlled variable used in ABS is the wheel deceleration, since it can be easily measured with a simple wheel encoder; however, it can be dynamically critical ...

2012
Kenji Nagaoka Noriaki Mizukami Takashi Kubota

Predicting the tractive limitations of locomotion gears is of critical importance in a robotic vehicle system on natural terrain. In particular, it is imperative for an unmanned mobile robot to avoid getting stuck in loose soil to retain its mobility. From this perspective, this paper attempts to theoretically predict the limitations of a typical wheel in such loose soil based on traditional so...

2009
Bobbie Frank Jochen Pohl Jan-Ove Palmberg

In this paper the potential of predictive control in a hybrid wheel loader is estimated using related research results as a basis. The application of hybrid technology to a wheel loader application is discussed and differences between on-road vehicles and wheel loaders are clarified. The main part of the related research has its focus on on-road vehicles where the usage patterns are more cohere...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2016
Gretha J Boersma Kellie L Tamashiro Timothy H Moran Nu-Chu Liang

One of the mechanisms through which regular exercise contributes to weight maintenance could be by reducing intake and preference for high-fat (HF) diets. Indeed, we previously demonstrated that wheel-running rats robustly reduced HF diet intake and preference. The reduced HF diet preference by wheel running can be so profound that the rats consumed only the chow diet and completely avoided the...

Journal: :Pharmacological reports : PR 2012
Anil Kumar Aditi Vashist Puneet Kumar Harikesh Kalonia Jitendriya Mishra

BACKGROUND Chronic fatigue stress (CFS) is an important health problem with unknown causes and unsatisfactory prevention strategies, often characterized by long-lasting and debilitating fatigue, myalgia, impairment of neuro-cognitive functions along with other common symptoms. The present study has been designed to explore the protective effect of statins against running wheel activity induced ...

2011
Gayle M Smythe Jason D White

Voluntary wheel running can potentially be used to exacerbate the disease phenotype in dystrophin-deficient mdx mice. While it has been established that voluntary wheel running is highly variable between individuals, the key parameters of wheel running that impact the most on muscle pathology have not been examined in detail. We conducted a 2-week test of voluntary wheel running by mdx mice and...

Journal: :Robotica 2012
Zhenzhong Jia William Smith Huei Peng

This paper presents a wheel–terrain interaction model, which enables efficient modeling of wheeled locomotion in soft soil and numerical simulations of off-road mobile robots. This modular model is derived based on wheel kinematics and terramechanics and the main focus is on describing the stress distributions along the wheel–terrain interface and the reaction forces exerted on the wheel by the...

2012
Mark A. Smith Elizabeth G. Pitts

Background: The purpose of this study was to examine the effects of voluntary wheel running on the positive reinforcing effects of heroin in rats with an established history of drug self-administration. Methods: Rats were assigned to sedentary (no wheel) and exercise (wheel) conditions and trained to self-administer cocaine under positive reinforcement contingencies. Rats acquiring cocaine self...

Journal: :Pharmacological reports : PR 2012
Mark A Smith Elizabeth G Pitts

BACKGROUND The purpose of this study was to examine the effects of voluntary wheel running on the positive reinforcing effects of heroin in rats with an established history of drug self-administration. METHODS Rats were assigned to sedentary (no wheel) and exercise (wheel) conditions and trained to self-administer cocaine under positive reinforcement contingencies. Rats acquiring cocaine self...

2016
Peng Chaoyong Zhao Bo

wheel-set is an important part of EMU. It directly influences the EMU operation security. In recent years, some harmful circumferential and radial defects are found in the wheel rim, which occur between the periods of two light maintenances. The comprehensive security system of wheel-set has already built in china to guarantee the EMU maintenance quality and operation security. It consists of r...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید