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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 usedsolutes through a 1 m heterogeneous soil column under steady flow condition was simulated by ADE and MIMResults show that MIM tends to prolong the breakthrough process and decrease peak concentration for allBreakthrough curves of the adsorbing solute simulated by MIM are less sensitive to the retardation factorwhen biochemical degradation prevails over the mass exchange between mobile and immobile zones.

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

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A dynamic model of mobile concrete pump boom based on discrete time transfer matrix method

Wu REN, Yunxin WU, Zhaowei ZHANG

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4,   Pages 360-366 doi: 10.1007/s11465-013-0280-8

Abstract:

Mobile concrete pump boom is typical multi-body large-scale motion manipulator.A dynamics model of a mobile concrete pump boom is established based on discrete time transfer matrixThe overall dynamic equation and transfer matrix of the model can be assembled by sub-structures A andThe displacement and rotation angle curves of the proposed method fit well with the ADAMS model.So it is suitable for mobile concrete pump boom real-time monitoring and dynamic analysis.

Keywords： multi-body     mobile concrete pump boom     discrete time transfer matrix method (DTTMM)     kinematic     dynamic     tip    

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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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Synthesis of ［RMIm］PF6（R=P, B, C6）ionic liquid under microwave irradiation and research of its conductivity

He Yongfu

Strategic Study of CAE 2008, Volume 10, Issue 9,   Pages 92-95

Abstract: ([BMIm]Br), 1-propyl-3-methylimidazolium bromize([PMIm]Br), 1-hexyl-3-methylimidazolium bromize ([C6MImmethyl-imidazolium hexafluorophosphate([PMIm]PF6),1-Hexane-3-methyl-imidazolium hexafluorophosphate([C6MIm

Keywords： ionic liquids     microwave irradiation     conductivity     [BMIm]PF6     [PMIm]PF6     [C6MIm]PF6    

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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.During the investigation, firstly a reduced dynamic model considering the dynamics of the driving motoris developed for mobile manipulators.a 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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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.Firstly, the mathematical model is built to analysis the relation between the configuration and the CMThen, 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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New developments in mobile air conditioning systems in China

Jiangping CHEN, Yu ZHAO, Zhaogang QI

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 53-58 doi: 10.1007/s11708-010-0137-3

Abstract: Global warming poses serious global concerns, and the mobile air conditioning (MAC) industry must be

Keywords： global warming potential     mobile air conditioning (MAC)     energy saving     new developments    

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Title Author Date Type Operation

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

Haizhu HU,Xiaomin MAO

Journal Article

A dynamic model of mobile concrete pump boom based on discrete time transfer matrix method

Wu REN, Yunxin WU, Zhaowei ZHANG

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

Synthesis of ［RMIm］PF6（R=P, B, C6）ionic liquid under microwave irradiation and research of its conductivity

He Yongfu

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

A pneumatic cylinder driving polyhedron mobile mechanism

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

Journal Article

New developments in mobile air conditioning systems in China

Jiangping CHEN, Yu ZHAO, Zhaogang QI

Journal Article