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Study on explanation standard of oil’s gas and water layers of A block in Daqing Oilfield

Xu Tong

Strategic Study of CAE 2012, Volume 14, Issue 4,   Pages 83-87

Abstract: well, evaluation well and development well in A block, we analyzed and counted the relation of “fourcharacters ”, that is lithology, physical character, oil-bearing and resistivity , and establisheddata of rotatory sidewall coring and drilling well coring, we analyzed and counted reservoir lithology characters

Keywords： “four characters”     coring     testing     logging     explanation standard    

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Landing control method of a lightweight four-legged landing and walking robot

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0707-1

Abstract: A lightweight four-legged landing and walking robot called “FLLWR” is designed in this study.

Keywords： landing and walking robot     lunar exploration     buffer landing     compliance control    

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Present Gene Engineering with ECIWO Theory——Techniques of Acquiring Polygene and Intensifying Anticipant Characters

Wang Ruiku

Strategic Study of CAE 2006, Volume 8, Issue 5,   Pages 25-28

Abstract:

ECIWO Theory is an important discovery. It gives a brand-new viewon on biology. ECIWO Theory can solve some problems in gene transfer, which opens a new path to biological genetic operation. The paper discussed the theoretical basis and technical principle of ECIWO gene engineering, which is based on ECIWO Theory, analyzed essence and key of the technology, brought forward operation scheme, and described the future of its application.

Keywords： ECIWO     gene engineering     solution     acquiring polygene     intensifying anticipant characters    

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Motion planning and tracking control of a four-wheel independently driven steered mobile robot with multiple

Xiaolong ZHANG, Yu HUANG, Shuting WANG, Gen LI, Yuanlong XIE, Wei MENG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 504-527 doi: 10.1007/s11465-020-0626-y

Abstract: Safe and effective autonomous navigation in dynamic environments is challenging for four-wheel independently

Keywords： mobile robot     multiple maneuvering mode     motion planning     tracking control     receding horizon control    

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Pollution of NPEOs in four municipal sewage treatment plants in the north of China

HOU Shaogang, SUN Hongwen

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 2,   Pages 196-201 doi: 10.1007/s11783-007-0034-0

Abstract: represents the mixture, and NPEO represents the monomer) and its metabolites in the influent and effluent of four
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Nonlinear dynamics and analysis of a four-bar linkage with clearance

Yuanguang TANG, Zongyu CHANG, Xiaogang DONG, Yafei HU, Zhenjiang YU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 2,   Pages 160-168 doi: 10.1007/s11465-013-0258-6

Abstract:

In this paper, nonlinear dynamic behavior of a four-bar linkage considering clearance is studied.

Keywords： four-bar linkage     chaos     bifurcation     strange attractors     dynamics    

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Obstacle-circumventing adaptive control of a four-wheeled mobile robot subjected to motion uncertainties

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0753-3

Abstract: To achieve the collision-free trajectory tracking of the four-wheeled mobile robot (FMR), existing methods

Keywords： four-wheeled mobile robot     obstacle-circumventing adaptive control     adaptive anti-disturbance terminal    

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System construction of a four-side primary permanent-magnet linear motor drive mechanical press

Jintao LIANG, Zhengfeng MING, Peida LI

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 600-609 doi: 10.1007/s11465-020-0597-z

Abstract: The structure of a four-side PPMLM drive press is presented based on our previous research.

Keywords： mechanical press     direct drive     primary permanent-magnet linear motor (PPMLM)     servo system     active disturbance rejection control (ADRC)     prototype experiment    

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Performance investigation of artificial intelligence based controller for three phase four leg shunt

J. JAYACHANDRAN,R. MURALI SACHITHANANDAM

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 446-460 doi: 10.1007/s11708-015-0378-2

Abstract: In this paper, the choice of power quality compensator is a DSTATCOM which constitutes a three phase four

Keywords： neural network     DSTATCOM     neutral current mitigation     total harmonic distortion (THD)     three phase four wire    

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Towards neutral steer and sideslip reduction for four-wheeled electric vehicles

Guisheng ZHAI, Masayuki NAKA, Tomoaki KOBAYASHI, Joe IMAE

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 16-22 doi: 10.1007/s11465-012-0316-5

Abstract:

This paper proposes an approach to achieving both neutral steer and sideslip reduction for four-wheeled

Keywords： four-wheeled electric vehicles     neutral steer     sideslip reduction     servo system     ?    

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Comparison between four piezoelectric energy harvesting circuits

Jinhao Qiu, Hao Jiang, Hongli Ji, Kongjun ZHU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 153-159 doi: 10.1007/s11465-009-0031-z

Abstract: This paper investigates and compares the efficiencies of four different interfaces for vibration-basedAmong those four circuits, two circuits adopt the synchronous switching technique, in which the circuit

Keywords： energy harvesting     piezoelectric materials     synchronized switching    

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Characters of Future Aircraft Hydraulic System

Wang Zhanlin,Chen Bin

Strategic Study of CAE 1999, Volume 1, Issue 3,   Pages 5-10

Abstract:

High density of driving power, fast response, high rigidity and high-precision are the advantages of hydraulic servo system, so it is widely used in aerospace. All of flight actuator and transmitting systems of today´s aircrafts are nearly driven by hydraulic systems. With the development of aircraft, especially of military aircraft, more demands are proposed to aircraft hydraulic system. In this paper, main developmental trend of airborne hydraulic system, especially for military aircraft, is summarized, and some research works on aircraft hydraulic systems in domestic and overseas are introduced. Light weight, small size, high-pressure, high power, variable pressure, intellectualization, integration, redundancy techniquue, and so on are the main trend of development of future aircraft hydraulic system. Especially, high-pressure, variable pressure hydraulic intelligent pump source system is very important for the development of future aircraft.

Keywords： airborne hydraulic systems     high-pressure     variable pressure     redundancy     power-by-wire    

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Real-Time Four-Dimensional Trajectory Generation Based on Gain-Scheduling Control and a High-Fidelity Article

Olusayo Obajemu, Mahdi Mahfouf, Lohithaksha M. Maiyar, Abrar Al-Hindi, Michal Weiszer, Jun Chen

Engineering 2021, Volume 7, Issue 4,   Pages 495-506 doi: 10.1016/j.eng.2021.01.009

Abstract: This paper proposes a new approach for generating efficient four-dimensional trajectories (4DTs) on the

Keywords： Aircraft model     Intelligent taxiing     Optimization     Four-dimensional trajectory    

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Anaerobic phenanthrene biodegradation with four kinds of electron acceptors enriched from the same mixed

Zuotao Zhang, Chongyang Wang, Jianzhong He, Hui Wang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1164-x

Abstract: The enriched bacterial communities were characterized under four redox conditions.Here, we reported on four phenanthrene-degrading enrichment cultures with sulfate, bicarbonate, nitratePrincipal component analysis (PCA) indicated that bacteria populations of longtime enriched cultures with fourThe key steps of phenanthrene biodegradation under four reducing conditions were carboxylation, further

Keywords： Phenanthrene     Anaerobic biodegradation     Bacterial populations     Archaea populations     Metabolic pathway    

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Handling Stability for Four-wheel Steering Vehicle Based on μ Synthesis Robust Control

Yin Guodong,Chen Nan,Li Pu

Strategic Study of CAE 2005, Volume 7, Issue 4,   Pages 54-58

Abstract:

The vehicles always undertake different loadings including external disturbances and the design of vehicle control system has model errors. The primary design techniques for 4WS controller are their inability to degrade the performance of closed-loop systems. The design of yaw rate tracking control system architecture by using μ synthesis robust control is presented and the weighting functions are selected. The results show that the control system has fine dynamic characteristic, robust stability and robust performance, and the 4WS vehicle with the proposed control strategy can provide greater maneuverability and driving safety.

Keywords： four-wheel steering     robust control     handling stability     μ synthesis    

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Title Author Date Type Operation

Study on explanation standard of oil’s gas and water layers of A block in Daqing Oilfield

Xu Tong

Journal Article

Landing control method of a lightweight four-legged landing and walking robot

Journal Article

Present Gene Engineering with ECIWO Theory——Techniques of Acquiring Polygene and Intensifying Anticipant Characters

Wang Ruiku

Journal Article

Motion planning and tracking control of a four-wheel independently driven steered mobile robot with multiple

Xiaolong ZHANG, Yu HUANG, Shuting WANG, Gen LI, Yuanlong XIE, Wei MENG

Journal Article

Pollution of NPEOs in four municipal sewage treatment plants in the north of China

HOU Shaogang, SUN Hongwen

Journal Article

Nonlinear dynamics and analysis of a four-bar linkage with clearance

Yuanguang TANG, Zongyu CHANG, Xiaogang DONG, Yafei HU, Zhenjiang YU

Journal Article

Obstacle-circumventing adaptive control of a four-wheeled mobile robot subjected to motion uncertainties

Journal Article

System construction of a four-side primary permanent-magnet linear motor drive mechanical press

Jintao LIANG, Zhengfeng MING, Peida LI

Journal Article

Performance investigation of artificial intelligence based controller for three phase four leg shunt

J. JAYACHANDRAN,R. MURALI SACHITHANANDAM

Journal Article

Towards neutral steer and sideslip reduction for four-wheeled electric vehicles

Guisheng ZHAI, Masayuki NAKA, Tomoaki KOBAYASHI, Joe IMAE

Journal Article

Comparison between four piezoelectric energy harvesting circuits

Jinhao Qiu, Hao Jiang, Hongli Ji, Kongjun ZHU

Journal Article

Characters of Future Aircraft Hydraulic System

Wang Zhanlin,Chen Bin

Journal Article

Real-Time Four-Dimensional Trajectory Generation Based on Gain-Scheduling Control and a High-Fidelity

Olusayo Obajemu, Mahdi Mahfouf, Lohithaksha M. Maiyar, Abrar Al-Hindi, Michal Weiszer, Jun Chen

Journal Article

Anaerobic phenanthrene biodegradation with four kinds of electron acceptors enriched from the same mixed

Zuotao Zhang, Chongyang Wang, Jianzhong He, Hui Wang

Journal Article

Handling Stability for Four-wheel Steering Vehicle Based on μ Synthesis Robust Control

Yin Guodong,Chen Nan,Li Pu

Journal Article