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Control strategy for gait transition of an underactuated 3Dbipedal robot Research Articles

Hai-hui YUAN, Yi-min GE, Chun-biao GAN

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 8, Pages 1026-1035 doi: 10.1631/FITEE.1800206

Abstract: In this paper, we consider the gait transition of a five-link underactuated three-dimensional (3D) bipedalcontroller that guides the robot from the current gait to a neighboring point of the target gait sothat the state trajectory can smoothly converge to the target gait.Compared with previous works, the transition controller is parameterized and its control parameters areobtained by solving an optimization problem to guarantee the physical constraints in the transition

Keywords： Gait transition Underactuated three-dimensional biped Event-based feedback controller Adaptive control

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Modeling and simulation of normal and hemiparetic gait

Lely A. LUENGAS,Esperanza CAMARGO,Giovanni SANCHEZ

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 3, Pages 233-241 doi: 10.1007/s11465-015-0343-0

Abstract:

Gait is the collective term for the two types of bipedal locomotion, walking and running.First of all, we apply it in the normal gait and then in the permanent hemiparetic gait.and kinetics of gait., especially hemiparetic gait.the significant characteristics of normal gait.

Keywords： bipedal gait biomechanics dynamic walking gait model human gait hemiparetic human gait

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Design of active orthoses for a robotic gait rehabilitation system

A. C. VILLA-PARRA,L. BROCHE,D. DELISLE-RODRÍGUEZ,R. SAGARÓ,T. BASTOS,A. FRIZERA-NETO

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 3, Pages 242-254 doi: 10.1007/s11465-015-0350-1

Abstract:

An active orthosis (AO) is a robotic device that assists both human gait and rehabilitation therapyBoth AOs will be used to complete a robotic system that improves gait rehabilitation.However, the potential of the proposed AOs to be part of a robotic gait rehabilitation system that improves

Keywords： active orthosis gait rehabilitation electroencephalography surface electromyography

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Epithelial-to-mesenchymal transition in cancer: complexity and opportunities

Yun Zhang, Robert A. Weinberg

Frontiers of Medicine 2018, Volume 12, Issue 4, Pages 361-373 doi: 10.1007/s11684-018-0656-6

Abstract:

The cell-biological program termed the epithelial-to-mesenchymal transition (EMT) plays an important

Keywords： epithelial-to-mesenchymal transition cancer metastasis cancer stem cell

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Phase transition regulation and caloric effect

Frontiers in Energy 2023, Volume 17, Issue 4, Pages 463-477 doi: 10.1007/s11708-023-0860-1

Abstract: worsening the performance in other aspects, like attaining a large caloric effect with narrowing the transitionperformance of materials, consisting of enlarging caloric effects, reducing hysteresis losses, adjusting transitiontemperatures, and widening transition temperature spans, which indicate that further progress can be

Keywords： phase transition regulation caloric effect solid state refrigeration

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Energy transition management towards a low-carbon world

Frontiers of Engineering Management 2022, Volume 9, Issue 3, Pages 499-503 doi: 10.1007/s42524-022-0201-9

Keywords： energy transition low-carbon technology system modeling transition path emission reduction

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Smart oilfield development and transition of petroleum-based cities

He LIU, Xinhua MA

Frontiers of Engineering Management 2019, Volume 6, Issue 2, Pages 299-301 doi: 10.1007/s42524-019-0024-5

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Energy transition toward carbon-neutrality in China: Pathways, implications and uncertainties

Frontiers of Engineering Management 2023, Volume 10, Issue 2, Pages 358-372 doi: 10.1007/s42524-022-0202-8

Abstract: Achieving carbon neutrality in China before 2060 requires a radical energy transition.To identify the possible transition pathways of China’s energy system, this study presents a scenario-basedThe assessment of the relationship between the energy transition and energy return on investment (EROI) reveals that energy transition may decrease the EROI, which would trigger increased energy investmentThe results also indicate the need for backup capacities to enhance the energy security during the transition

Keywords： carbon neutrality energy transition uncertainty EROI LEAP

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Sensor-guided gait-synchronization lower-extremity-exoskeleton for potential application on unilateral Research Articles

Donghai WANG

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 6, Pages 920-936 doi: 10.1631/FITEE.2000465

Abstract:

This paper presents a gait-synchronization system to help potential unilateral knee-injured peopleThe gait-synchronization system is integrated with a designed to sense the motion/gait of the healthytrajectories, the motorized hip joint lifts the links during walking and synchronizes the knee-injured gaitwith the healthy gait by a half-cycle delay.The results indicate that the motorized hip-controlled LEE can synchronize the motion/gait of the combined

Keywords： Sensor-guided Lower-extremity-exoskeleton Body sensor network Gait synchronization Weight-support

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Policy entry points for facilitating a transition towards a low-carbon electricity future

Frontiers of Engineering Management Pages 462-472 doi: 10.1007/s42524-022-0214-4

Abstract: This study extends the ambit of the debate on electricity transition by specifically identifying possibletransformative and enduring changes can be made in the electricity and socio–economic systems to facilitate the transitionGuided by the “essence” of the multi-level perspective — a prominent framework for the study of energy transitionphase-out on coal mining regions in terms of economic development and jobs; and 4) facilitating a shift in transition

Keywords： electricity transition multi-level perspective policy entry points

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An experimental analysis of human straight walking

Tao LI, Marco CECCARELLI

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1, Pages 95-103 doi: 10.1007/s11465-013-0357-4

Abstract: Furthermore, by using experimental tests, modeling and characterization of the human straight walking gait

Keywords： human locomotion walking gait characterization humanoid robot biped robot

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Kinetic roughening transition and missing regime transition of melt crystallized polybutene-1 tetragonal

Motoi YAMASHITA

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2, Pages 125-134 doi: 10.1007/s11705-009-0001-3

Abstract: The kinetic roughening transition occurs around 85°C.

Keywords： isotactic polybutene-1 tetragonal phase (form Ⅱ) melt crystallization growth rate kinetic roughening morphology

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Microwave-induced high-energy sites and targeted energy transition promising for efficient energy deployment

Frontiers in Energy 2022, Volume 16, Issue 6, Pages 931-942 doi: 10.1007/s11708-021-0771-y

Abstract: In this study, a high-energy-site phenomenon and targeted-energy transition mechanism were identifiedEnergy efficiency was thereby greatly improved in the electricity-microwaves-effective heat transitionincluding microwave energy concentration and intense site-energy release, shapes a targeted-energy transitionThe microwave-induced high-energy sites and targeted energy transition provide an important pathway for

Keywords： microwave discharge high-energy sites targeted-energy transition morphology design energy efficiency

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Recognition of walking environments and gait period by surface electromyography Special Feature on Intelligent Robats

Seulki KYEONG, Wonseok SHIN, Minjin YANG, Ung HEO, Ji-rou FENG, Jung KIM

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 3, Pages 342-352 doi: 10.1631/FITEE.1800601

Abstract: exoskeleton to help in walking, the aim of this work is to distinguish the walking environment and gaitFor this purpose, a gait experiment was performed on four subjects using the ground reaction force, human–robotof this paper is to show progress with the use of sEMG when recognizing walking environments and the gaitWhen four sensor combinations were used, the environment classification accuracy was 96.1%, and the gaitpre-heel contact (preHC) and 71.7% in pre-toe-off (preTO) for environment classification, and 68.0% for gait

Keywords： Walking environment Gait Period Surface electromyography (sEMG) Exoskeleton