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A pneumatic cylinder driving polyhedron mobile mechanism

Wan DING, Sung-Chan KIM, Yan-An YAO

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 55-65 doi: 10.1007/s11465-012-0301-z

Abstract:

A novel pneumatic cylinder driving polyhedron mobile mechanism is proposed in this paper.The mechanism is comprised of 5 tetrahedrons which includes a pneumatic cylinder in each edge.It locomotes by rolling and the rolling principle refers to the center of mass (CM) of the mechanismthe mathematical model is built to analysis the relation between the configuration and the CM of the mechanismThen, a binary control strategy is developed to simplify and improve the control of this mobile mechanism

Keywords： mobile mechanism     polyhedron     cylinder    

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Novel probabilistic rolling regular tetrahedron mechanism

Yonghan GUAN, Yan’an YAO, Chao LIU, Ruiming LI

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 363-378 doi: 10.1007/s11465-020-0628-9

Abstract: Currently, a large gap remains in the research of stochastic motion mechanism.In this study, a novel mechanism that can conduct probabilistic rolling is proposed to reach a designatedAccording to mobility and kinematic analyses, the mechanism can implement probabilistic rolling.Each rolling gait has three probable rolling directions, and the mechanism rolls in one of the threeIn a 4 m test site, the mechanism makes 11 moves to reach the target position and covers 29.25% of the

Keywords： mobile mechanism     probabilistic motion     rolling mechanism     stochastic motion    

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Design and locomotion analysis of two kinds of rolling expandable mobile linkages with a single degree

Yanlin HAO, Yaobin TIAN, Jianxu WU, Yezhuo LI, Yan-An YAO

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3,   Pages 365-373 doi: 10.1007/s11465-020-0585-3

Abstract: This study presents two kinds of rolling robots that are able to roll by deforming their outer shapes with a single degree of freedom. Each robot is an essential multi-loop planar expandable linkage constructed by a concave outer loop and several inner parallelogram loops. In this study, the mechanical design of the robots is introduced. Dynamic rolling process is further analyzed on the basis of zero moment point method, and a morphing strategy is proposed to guarantee a stable dynamic rolling process. A novel passive rolling locomotion is also developed, which enables the robots to roll and stand on a slope. To verify the design, two prototypes are manufactured, wherein the dynamic and passive rolling locomotion are carried out.

Keywords： rolling locomotion     expandable mechanism     mechanism design     zero moment point (ZMP) analysis    

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A novel six-legged walking machine tool for

Jimu LIU, Yuan TIAN, Feng GAO

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3,   Pages 351-364 doi: 10.1007/s11465-020-0594-2

Abstract: and maintenance of large parts in ships, trains, aircrafts, and so on create an increasing demand for mobileHowever, few mobile robots can accommodate the complex environment of industrial plants while performingThis study proposes a novel six-legged walking machine tool consisting of a legged mobile robot and ahierarchical motion planning scheme is proposed to take advantage of the large workspace of the legged mobile

Keywords： legged robot     parallel mechanism     mobile machine tool     in-situ machining    

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Research and practice on system engineering management of a mobile payment project

Yongkai ZHOU, Hongfeng CHAI

Frontiers of Engineering Management 2017, Volume 4, Issue 2,   Pages 127-137 doi: 10.15302/J-FEM-2017011

Abstract: The popularization of the mobile internet has given rise to demand for flexible and convenient paymentit is necessary to keep pace with or even lead the trend of innovation and development in the age of mobileperspective of systems engineering, this paper introduces research and implementation of China UnionPay’s mobileThe general requirements and core engineering problems of the mobile payment project are summarized basedThe launch of the mobile payment project also opens the window to coordinating and upgrading the whole

Keywords： systems engineering     mobile payment     engineering management method     Mobile QuickPass     national information    

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Motion control of multi-actuator hydraulic systems for mobile machineries: Recent advancements and future

Bing XU, Min CHENG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 151-166 doi: 10.1007/s11465-018-0470-5

Abstract: upcoming trends in motion control technologies employed in designing multi-actuator hydraulic systems for mobileHydraulic systems have been extensively used in mobile machineries due to their superior power densityThen, the advanced operation methods of multi-actuator mobile machineries are reviewed, including coordinated

Keywords： motion control     electrohydraulic control     energy efficiency     mobile machineries    

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A new efficient optimal path planner for mobile robot based on Invasive Weed Optimization algorithm

Prases K. MOHANTY,Dayal R. PARHI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 317-330 doi: 10.1007/s11465-014-0304-z

Abstract:

Planning of the shortest/optimal route is essential for efficient operation of autonomous mobile robotIWO), a new meta-heuristic algorithm, has been implemented for solving the path planning problem of mobile

Keywords： mobile robot     obstacle avoidance     Invasive Weed Optimization     navigation    

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Output tracking control of mobile manipulators based on dynamical sliding-mode control

WUYuxiang, FENG Ying, HU Yueming

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 110-115 doi: 10.1007/s11465-007-0019-5

Abstract: A dynamical sliding-mode controller is devised to track the output of mobile manipulators.investigation, firstly a reduced dynamic model considering the dynamics of the driving motor is developed for mobilea design method of the dynamical sliding-mode controller that is applied to the output tracking of mobile

Keywords： lower-dimensional     nonlinear     trajectory     tracking     diffeomorphism    

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Assessment of mobile and potential mobile trace elements extractability in calcareous soils using different

Mohsen Jalali, Ziba Hurseresht

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 1, doi: 10.1007/s11783-019-1186-4

Abstract: DTPA and NH4OAc, HNO3 and EDTA, and MgCl2 and NH4NO3 had similar behavior. In NH4OAc, DTPA, and EDTA, the possibility of re-adsorption of trace elements is low. CaCl2 may be more suitable than other extracts in calcareous soils. Understanding trace elements mobility in soils, extracting agents, and their relationships with soil components, are essential for predicting their movement in soil profile and availability to plants. A laboratory study was conducted to evaluate extractability of cadmium (Cd), cobalt (Co), copper (Cu), nickel (Ni), and zinc (Zn) from calcareous soils utilizing various extracting agents to be specific CaCl2, DTPA, EDTA, HNO3, MgCl2, NaNO3, NH4NO3, and NH4OAc. Cluster analysis indicated that DTPA and NH4OAc, HNO3 and EDTA, and MgCl2 and NH4NO3 extracting agents yielded comparative values, whereas NaNO3 and CaCl2 have shown different behavior than other extracting agents for all studied trace elements. The speciation of extracted trace elements in solutions indicated that in the CaCl2, NaNO3, NH4NO3, and MgCl2 extracting agents most extracted Cd, Co, Ni, Zn, and part of Cu were as free ions and may be re-adsorbed on soils, leading to lower extractability, whereas, in the case of HNO3 extracting agent, the likelihood of re-adsorption of trace elements may be little. The results of speciation of trace elements using NH4OAc, DTPA, and EDTA extracting agents showed that Me-(Acetate)3–, Me-(Acetate)2(aq), Me(DTPA)3−, Me(EDTA)2−, and MeH(EDTA)– complexes dominated in solutions indicating that the extracted trace elements may not be re-adsorbed on soils, leading to higher extractability. The results of this study are useful for short and long-term evaluations of trace elements mobility and further environmental impacts.

Keywords： Mobility     Calcareous soils     Extracting agents     Trace elements    

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Analyzing the service availability of mobile cloud computing systems by fluid-flow approximation

Hong-wu LV,Jun-yu LIN,Hui-qiang WANG,Guang-sheng FENG,Mo ZHOU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 7,   Pages 553-567 doi: 10.1631/FITEE.1400410

Abstract: Mobile cloud computing (MCC) has become a promising technique to deal with computation- or data-intensiveIt overcomes the limited processing power, poor storage capacity, and short battery life of mobile devices

Keywords： Service availability     Mobile cloud computing     Fluid-flow approximation     Ordinary differential equations    

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Human power-based energy harvesting strategies for mobile electronic devices

Dewei JIA, Jing LIU

Frontiers in Energy 2009, Volume 3, Issue 1,   Pages 27-46 doi: 10.1007/s11708-009-0002-4

Abstract: Energy problems arise with the proliferation of mobile electronic devices, which range from entertainmentor metabolic phenomena open up possibilities for harvesting energy which is strong enough to power mobileelectricity generation methods based on human power which would serve as promising candidates for future mobile

Keywords： mobile electronic device     human power     energy harvesting     micro/miniaturized generator     battery     green energy    

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Biomedical sensor technologies on the platform of mobile phones

Lin LIU, Jing LIU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 160-175 doi: 10.1007/s11465-011-0216-0

Abstract: As an alternative, new technologies enabled from the mobile phones are gradually changing such situationsAs can be freely available to almost everyone, mobile phone offers a unique way to improve the conventionalinterpreting the technical strategies to innovate the biomedical sensor technologies based on the platform of mobilemechanical technologies, it is expected that a full combination between the biomedical sensors and mobile

Keywords： biomedical sensor     pervasive technology     mobile phone     combined system     health management    

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Emerging technologies to power next generation mobile electronic devices using solar energy

Dewei JIA , Yubo DUAN , Jing LIU ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 262-288 doi: 10.1007/s11708-009-0015-z

Abstract: Mobile electronic devices such as MP3, mobile phones, and wearable or implanted medical devices have

Keywords： conversion     energy harvesting     solar cell     maximum power point track algorithm     PV electricity storage     mobile    

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Development of mobile miniature natural gas liquefiers

Yanxing ZHAO, Maoqiong GONG, Haocheng WANG, Hao GUO, Xueqiang DONG

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 667-682 doi: 10.1007/s11708-020-0695-y

Abstract: In consideration of the above, this paper reviews the development of mobile miniature NG liquefiers in

Keywords： natural gas     mobile miniature liquefiers     mixed refrigerant cycle     vapor liquid equilibrium     heat transfer    

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Comparison of the performance of traditional advection-dispersion equation and mobile-immobile model

Haizhu HU,Xiaomin MAO

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 3,   Pages 241-248 doi: 10.15302/J-FASE-2016108

Abstract: The traditional advection-dispersion equation (ADE) and the mobile-immobile model (MIM) are widely usedsimulating degradable solute transport when biochemical degradation prevails over the mass exchange between mobile

Keywords： solute transport     advection dispersion equation (ADE)     mobile-immobile model (MIM)     conservative solute    

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Title Author Date Type Operation

A pneumatic cylinder driving polyhedron mobile mechanism

Wan DING, Sung-Chan KIM, Yan-An YAO

Journal Article

Novel probabilistic rolling regular tetrahedron mechanism

Yonghan GUAN, Yan’an YAO, Chao LIU, Ruiming LI

Journal Article

Design and locomotion analysis of two kinds of rolling expandable mobile linkages with a single degree

Yanlin HAO, Yaobin TIAN, Jianxu WU, Yezhuo LI, Yan-An YAO

Journal Article

A novel six-legged walking machine tool for

Jimu LIU, Yuan TIAN, Feng GAO

Journal Article

Research and practice on system engineering management of a mobile payment project

Yongkai ZHOU, Hongfeng CHAI

Journal Article

Motion control of multi-actuator hydraulic systems for mobile machineries: Recent advancements and future

Bing XU, Min CHENG

Journal Article

A new efficient optimal path planner for mobile robot based on Invasive Weed Optimization algorithm

Prases K. MOHANTY,Dayal R. PARHI

Journal Article

Output tracking control of mobile manipulators based on dynamical sliding-mode control

WUYuxiang, FENG Ying, HU Yueming

Journal Article

Assessment of mobile and potential mobile trace elements extractability in calcareous soils using different

Mohsen Jalali, Ziba Hurseresht

Journal Article

Analyzing the service availability of mobile cloud computing systems by fluid-flow approximation

Hong-wu LV,Jun-yu LIN,Hui-qiang WANG,Guang-sheng FENG,Mo ZHOU

Journal Article

Human power-based energy harvesting strategies for mobile electronic devices

Dewei JIA, Jing LIU

Journal Article

Biomedical sensor technologies on the platform of mobile phones

Lin LIU, Jing LIU

Journal Article

Emerging technologies to power next generation mobile electronic devices using solar energy

Dewei JIA , Yubo DUAN , Jing LIU ,

Journal Article

Development of mobile miniature natural gas liquefiers

Yanxing ZHAO, Maoqiong GONG, Haocheng WANG, Hao GUO, Xueqiang DONG

Journal Article

Comparison of the performance of traditional advection-dispersion equation and mobile-immobile model

Haizhu HU,Xiaomin MAO

Journal Article