Resource Type

Journal Article 291

Year

2023 30

2022 29

2021 23

2020 15

2019 19

2018 12

2017 17

2016 16

2015 6

2014 11

2013 10

2012 6

2011 13

2010 9

2009 14

2008 13

2007 11

2006 3

2005 7

2004 6

open ︾

Keywords

regulation 8

compressive strength 6

self-assembly 6

1 2

Energy harvesting 2

Immune regulation 2

Three Gorges Project 2

Traditional Chinese medicine 2

different 2

environmental regulation 2

innovation 2

organogelator 2

parametric study 2

self-centering 2

self-compacting concrete 2

self-powered devices 2

tunnel 2

12-phase rectification 1

1D and 2D numerical simulation 1

open ︾

Search scope:

排序： Display mode:

Self-generation of machining precision and its realization in lapping of super precision solid balls

ZHANG Bopeng

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3,   Pages 348-353 doi: 10.1007/s11465-008-0065-7

Abstract: and five necessary conditions for forming a system with self-organization capability.A self-generation system is a kind of system with self-organization capability.self-regulation capability, 2 with the self-determination capability of goals, and 3 with the self-organizationcapability.Self-generation of machining precision for solid balls with super precision on the basis of the capability

Keywords： self-generation     necessary     self-regulation capability     viewpoint     Necessary    

HTML PDF Collect

Climate change and its consequences for water and wastewater management

Peter A. WILDERER

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1,   Pages 1-1 doi: 10.1007/s11783-009-0001-z

Abstract: Life, in combination with solar radiation and abiotic processes, is most probably the reason why liquid water has existed on Earth for over billions of years, and the global mean temperature has remained in a life-enabling range. Efforts to limit or even reverse global warming must be derived from the knowledge of the Earth’s complex life-support system. In this context, the balance between liquid and gaseous water plays a crucial role, and water management becomes an important field of innovation and action, globally, on the scale of watersheds but also on the very local level. Cascading use, reuse, and temporary storage of water in urban settings must be considered to limit over-extraction of water from natural resources, and to maintain the life supporting function of ecosystems. At the same time, public health requirements, cost efficiency, and reliability demands are to be met.

Keywords： ecosystem     management tools     self-regulation     urbanization     water-climate relationship     water reuse    

HTML PDF Collect

Design and experimental study of a passive power-source-free stiffness-self-adjustable mechanism

Yuwang LIU, Dongqi WANG, Shangkui YANG, Jinguo LIU, Guangbo HAO

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 32-45 doi: 10.1007/s11465-020-0604-4

Abstract: We propose a new passive power-source-free stiffness-self-adjustable mechanism that can be used as themechanism does not require special stiffness regulating motors or sensors and can realize large-range self-adaptive

Keywords： variable stiffness mechanism     stiffness self-regulation     bionic robot     modeling    

HTML PDF Collect

Radial electromagnetic type unbalance vibration self-recovery regulation system for high-end grinding

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0763-1

Abstract: The unbalance vibration self-recovery regulation (UVSRR) system is proposed to suppress the vibrationResults show that the self-locking torque satisfies the actual demand, and the driving torque is increased

Keywords： UVSRR system     radial electromagnetic type     vibration suppression     performance simulation     engineering application    

HTML PDF Collect

Research on the Fault Self-recovery Principle of Equipment System

Gao Jinji

Strategic Study of CAE 2005, Volume 7, Issue 5,   Pages 43-48

Abstract: Under the guidance of the systemics theory，borrowing the idea of “self-recuperation” therapeuticof immunity, protection, compensation, regeneration, adaptation, etc., with the fault prevention and self-healingas the goal, this paper focuses on the study of the fault self-recovery principle and its engineeringFault Self-recovery Engineering (FSE), which can provide theoretical basis in developing a new generationof self-healing machine.

Keywords： equipment system     principle of fault self-recovery     fault self-recovery regulation     diagnosis     active control    

HTML PDF Collect

SALL4 maintains self-renewal of porcine pluripotent stem cells through downregulation of OTX2

Ning WANG, Sile WANG, Yaxian WANG, Yuanxing CAI, Fan YANG, Huayan WANG

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 1,   Pages 81-92 doi: 10.15302/J-FASE-2017180

Abstract: expression of SALL4A was not affected, indicating that SALL4B may be essential for the maintenance of piPSCs self-renewalfeedback regulatory mechanism may exist between SALL4 and OTX2, which is useful for the maintenance of the self-renewal

Keywords： OTX2     pluripotency     pig     SALL4     transcription regulation    

HTML PDF Collect

API-based assessment on urban air environment bearing capability in China

Jinnan WANG,Jing ZHANG,Hongqiang JIANG,Yaling LU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1049-1055 doi: 10.1007/s11783-014-0662-0

Abstract: By using this new method, the air environmental bearing capability of 333 cities at the prefecture levelThe results show that of the 333 cities 9.6% is of high bearing capability, 34.5% relatively high bearingcapability, 52.6% medium bearing capability, 2.7% low capability, and 0.6% is of weak bearing capabilityin terms of regional distribution, the western region is of relatively high air environment bearing capabilityagglomerations are of relatively high carrying capacity while other agglomerations are of medium bearing capability

Keywords： air pollution index (API)     air environment bearing capability     key city     assessment method    

HTML PDF Collect

Enhancing power transfer capability through flexible AC transmission system devices: a review

Fadi M. ALBATSH,Saad MEKHILEF,Shameem AHMAD,H. MOKHLIS,M. A. HASSAN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 8,   Pages 658-678 doi: 10.1631/FITEE.1500019

Abstract: conducted a comprehensive review of how FACTS controllers are used to enhance the available transfer capability(ATC) and power transfer capability (PTC) of power system networks.

Keywords： FACTS devices     Available transfer capability     Power transfer capability     Artificial intelligence    

HTML PDF Collect

Motion capability analysis of a quadruped robot as a parallel manipulator

Jingjun YU,Dengfeng LU,Zhongxiang ZHANG,Xu PEI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 295-307 doi: 10.1007/s11465-014-0317-7

Abstract:

This paper presents the forward and inverse displacement analysis of a quadruped robot MANA as a parallel manipulator in quadruple stance phase, which is used to obtain the workspace and control the motion of the body. The robot MANA designed on the basis of the structure of quadruped mammal is able to not only walk and turn in the uneven terrain, but also accomplish various manipulating tasks as a parallel manipulator in quadruple stance phase. The latter will be the focus of this paper, however. For this purpose, the leg kinematics is primarily analyzed, which lays the foundation on the gait planning in terms of locomotion and body kinematics analysis as a parallel manipulator. When all four feet of the robot contact on the ground, by assuming there is no slipping at the feet, each contacting point is treated as a passive spherical joint and the kinematic model of parallel manipulator is established. The method for choosing six non-redundant actuated joints for the parallel manipulator from all twelve optional joints is elaborated. The inverse and forward displacement analysis of the parallel manipulator is carried out using the method of coordinate transformation. Finally, based on the inverse and forward kinematic model, two issues on obtaining the reachable workspace of parallel manipulator and planning the motion of the body are implemented and verified by ADAMS simulation.

Keywords： quadruped robot     actuated joints selection     kinematics analysis     motion planning     parallel manipulator    

HTML PDF Collect

Moving policy and regulation forward for single-use plastic alternatives

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-021-1423-5

Abstract: Single-use plastics are often used once or cannot be reused for extended periods. They are widely consumed with the rapid development of social economy. The waste generated by single-use plastics threatens ecosystem health by entering the environment and ultimately restricts sustainable human development. The innovation of sustainable and environmentally friendly single-use plastic alternative materials and the joint participation of governments, enterprises and the public are promising technologies and management approaches that can solve the problem of single-use plastics wastes. The development of single-use plastic alternative products can be promoted fundamentally only by improving relevant legislation and standards, providing differentiated industrial policies, encouraging scientific and technological innovation and expanding public participation.

Keywords： Single-use plastic alternatives     Policy     Regulation     Sustainable development    

HTML PDF Collect

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: Solid state refrigeration based on caloric effect is regarded as a potential candidate for replacing vapor-compression refrigeration. Numerous methods have been proposed to optimize the refrigeration properties of caloric materials, of which single field tuning as a relatively simple way has been systemically studied. However, single field tuning with few tunable parameters usually obtains an excellent performance in one specific aspect at the cost of worsening the performance in other aspects, like attaining a large caloric effect with narrowing the transition temperature range and introducing hysteresis. Because of the shortcomings of the caloric effect driven by a single field, multifield tuning on multicaloric materials that have a coupling between different ferro-orders came into view. This review mainly focuses on recent studies that apply this method to improve the cooling performance of materials, consisting of enlarging caloric effects, reducing hysteresis losses, adjusting transition temperatures, and widening transition temperature spans, which indicate that further progress can be made in the application of this method. Furthermore, research on the sign of lattice and spin contributions to the magnetocaloric effect found new phonon evolution mechanisms, calling for more attention on multicaloric effects. Other progress including improving cyclability of FeRh alloys by introducing second phases and realizing a large reversible barocaloric effect by hybridizing carbon chains and inorganic groups is described in brief.

Keywords： phase transition regulation     caloric effect     solid state refrigeration    

HTML PDF Collect

Selective pseudosolubilization capability of

Fei HUA, Hongqi WANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 4,   Pages 539-551 doi: 10.1007/s11783-013-0498-z

Abstract: Pseudosolubilized ability of sp. DG17 on -alkanes, role of biosurfactants in -octadecane uptake and trans-membrane transport mechanism of -octadecane were studied by analyzing amount of pseudosolubilized oil components in water phase, and the fraction of radiolabeled C -octadecane in the broth and cell pellet. GC-MS results showed that pseudosolubilized oil components were mainly C to C of -alkanes. In -octadecane broth, pseudosolubilized -octadecane could be accumulated as long as pseudosolubilized rate was faster than mineralization rate of substrate, and the maximum concentration of pseudosolubilized -octadecane achieved to 45.37 mg·L . All of these results showed that sp. DG17 mainly utilized alkanes by directly contacting with pseudosolubilized small oil droplets in the water phase. Analysis of C amount in cell pellet revealed that an energy-dependent system mainly controlled the trans-membrane transport of -octadecane.

Keywords： Pseudomonas     alkane     uptake     pseudosolubilization     trans-membrane transport    

HTML PDF Collect

Evaluation of stray current corrosion resistance of concrete in metro construction

YANG Shucai, YANG Xu

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 246-252 doi: 10.1007/s11709-008-0036-4

Abstract: corrosion resistance of concrete specimens of different mixture ratios, and reaches a conclusion that the capability

Keywords： project     different     requirement     simulation     capability    

HTML PDF Collect

The function and regulation of OTU deubiquitinases

Jiansen Du, Lin Fu, Yingli Sui, Lingqiang Zhang

Frontiers of Medicine 2020, Volume 14, Issue 5,   Pages 542-563 doi: 10.1007/s11684-019-0734-4

Abstract: character, structure and function of OTUs, such as the substrate specificity and catalytic activity regulation

Keywords： ubiquitin     OTU deubiquitinases     structure     function     regulation    

HTML PDF Collect

Insights into simultaneous anammox and denitrification system with short-term pyridine exposure: Process capability

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1433-3

Abstract:

• Short-term effect of the pyridine exposure on the SAD process was investigated.

Keywords： Anammox     Inhibition     Metabolic pathway     Microbial community     Pyridine     SAD    

HTML PDF Collect

Title Author Date Type Operation

Self-generation of machining precision and its realization in lapping of super precision solid balls

ZHANG Bopeng

Journal Article

Climate change and its consequences for water and wastewater management

Peter A. WILDERER

Journal Article

Design and experimental study of a passive power-source-free stiffness-self-adjustable mechanism

Yuwang LIU, Dongqi WANG, Shangkui YANG, Jinguo LIU, Guangbo HAO

Journal Article

Radial electromagnetic type unbalance vibration self-recovery regulation system for high-end grinding

Journal Article

Research on the Fault Self-recovery Principle of Equipment System

Gao Jinji

Journal Article

SALL4 maintains self-renewal of porcine pluripotent stem cells through downregulation of OTX2

Ning WANG, Sile WANG, Yaxian WANG, Yuanxing CAI, Fan YANG, Huayan WANG

Journal Article

API-based assessment on urban air environment bearing capability in China

Jinnan WANG,Jing ZHANG,Hongqiang JIANG,Yaling LU

Journal Article

Enhancing power transfer capability through flexible AC transmission system devices: a review

Fadi M. ALBATSH,Saad MEKHILEF,Shameem AHMAD,H. MOKHLIS,M. A. HASSAN

Journal Article

Motion capability analysis of a quadruped robot as a parallel manipulator

Jingjun YU,Dengfeng LU,Zhongxiang ZHANG,Xu PEI

Journal Article

Moving policy and regulation forward for single-use plastic alternatives

Journal Article

Phase transition regulation and caloric effect

Journal Article

Selective pseudosolubilization capability of

Fei HUA, Hongqi WANG

Journal Article

Evaluation of stray current corrosion resistance of concrete in metro construction

YANG Shucai, YANG Xu

Journal Article

The function and regulation of OTU deubiquitinases

Jiansen Du, Lin Fu, Yingli Sui, Lingqiang Zhang

Journal Article

Insights into simultaneous anammox and denitrification system with short-term pyridine exposure: Process capability

Journal Article