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A space-saving steering method for underwater gliders in lake monitoring Article

Yu-shi ZHU, Can-jun YANG, Shi-jun WU, Qing LI, Xiao-le XU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 4,   Pages 485-497 doi: 10.1631/FITEE.1500399

Abstract: This paper presents a space-saving steering method under a small pitch angle (SPA) for appearance-fixedSteering under an SPA increases the steering angle in per unit vertical space.an SPA.The trial results show that steering under an SPA saves vertical space, unlike that under a large pitchangle.

Keywords： Underwater glider     Lake monitoring     Space-saving     Steering method     Small pitch angle (SPA)     Hydrodynamics    

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CFD simulation on shell-and-tube heat exchangers with small-angle helical baffles

Minhua ZHANG,Fang MENG,Zhongfeng GENG

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 2,   Pages 183-193 doi: 10.1007/s11705-015-1510-x

Abstract: This paper focused on the small-angle helical baffles that have been merely reported in open literatureThese baffles are noncontinuous helical baffles with a helix angle of 10° to 30°, and their shapes are

Keywords： heat transfer     pressure drop     helical baffle     CFD    

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Development of a redundant anthropomorphic hydraulically actuated manipulator with a roll–pitch–yaw spherical

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 698-710 doi: 10.1007/s11465-021-0646-2

Abstract: seven-degree-of-freedom (7-DOF) redundant anthropomorphic hydraulically actuated manipulator with a novel roll–pitch–yawspherical wrist design, which consists of two parallel linear hydraulic cylinders to drive the yaw/pitch

Keywords： hydraulic manipulator     inverse kinematic     redundant design     spherical wrist    

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Haloacetic acids in swimming pool and spa water in the United States and China

Xiaomao WANG,Garcia Leal M I,Xiaolu ZHANG,Hongwei YANG,Yuefeng XIE

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 820-824 doi: 10.1007/s11783-014-0712-7

Abstract: the occurrence of haloacetic acids (HAAs), a group of disinfection byproducts, in swimming pool and spa

Keywords： chlorination     disinfection byproduct     haloacetic acid     swimming pool     trihalomethane    

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Lamellar thickness transition of melt-crystallized polybuten-1 tetragonal phase: configurational change in chain folding directions

Motoi YAMASHITA

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 26-32 doi: 10.1007/s11705-009-0002-2

Abstract: crystallization in the melt over a wide range of crystallization temperature from 40°C to 90°C by smallangle X-ray scattering experiments and density measurements.

Keywords： isotactic polybutene-1     tetragonal phase     crystal thickness     melt growth     chain folding     small angle X-ray    

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Precise semi-analytical inverse kinematic solution for 7-DOF offset manipulator with arm angle optimization

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 435-450 doi: 10.1007/s11465-021-0630-x

Abstract: However, finding the analytical solution of an EMM on the basis of arm angle parameterization is difficultFirstly, the analytical inverse kinematic solution is established based on joint angle parameterizationerror is corrected using a numerical method through the analytical inverse solution based on joint angleLastly, case solutions confirm that this method has high precision, and the arm angle parameterizationmethod is superior to the joint angle parameterization method in terms of parameter selection.

Keywords： 7-DOF redundant manipulator     inverse kinematics     semi-analytical     arm angle     link offset    

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Evaluating the material strength from fracture angle under uniaxial loading

Jitang FAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 288-293 doi: 10.1007/s11709-018-0480-8

Abstract: Shearing fracture angle is smaller than 45° under uniaxial compression and greater than 45° under uniaxialmaterial strength under uniaxial compression and tension is developed by correlating the shearing fracture angleis quantitatively illustrated by a function for analyzing the material strength from shear fracture angle

Keywords： strength     fracture     mechanics    

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Power maximization of variable-speed variable-pitch wind turbines using passive adaptive neural fault

Hamed HABIBI, Hamed RAHIMI NOHOOJI, Ian HOWARD

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 377-388 doi: 10.1007/s11465-017-0431-4

Abstract: This paper studies the control methodology for variable-speed variable-pitch wind turbines includingwind speed and model noises, and completely unknown actuator faults including generator torque and pitch

Keywords： wind turbine nonlinear model     maximum power tracking     passive fault tolerant control     adaptive neural control    

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An investigation on modification mechanism of CH

Qiang XIN, Shanghong HUANG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3,   Pages 293-300 doi: 10.1007/s11709-017-0403-0

Abstract: concentrated sulfuric acid is used as catalyst, and the chemical modification of low temperature coal tar pitch

Keywords： low temperature     coal tar pitch     modification     road performance    

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Transversal tube pitch effects on local heat transfer characteristics of the flat tube bank fin mounted

Liangbi WANG, Zhimin LIN, Kangjie SUN, Yuanxin DONG, Song LIU, Yongheng ZHANG,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 333-345 doi: 10.1007/s11708-009-0061-6

Abstract: The tube bank fin is commonly used to increase the area of the heat transfer surface with a small heatThis paper focused on the effect of transversal tube pitch on the local heat transfer performance ofOn the fin surface, constructing the flow channel but without mounted VGs, the transversal tube pitchtube unit of heat exchanger for commonly used fin materials and fin thickness, the transversal tube pitchLarge transversal tube pitch is more sensitive to fin material than to fin thickness.

Keywords： heat transfer enhancement     vortex generator     finned flat tube bank     heat exchanger    

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A ruptured recurrent small bowel gastrointestinal stromal tumour causing hemoperitoneum

Eric C.H. Lai,Kam Man Chung,Stephanie H.Y. Lau,Wan Yee Lau

Frontiers of Medicine 2015, Volume 9, Issue 1,   Pages 108-111 doi: 10.1007/s11684-014-0344-0

Abstract: intra-abdominal recurrence from a previously resected gastrointestinal stromal tumour (GIST) of the smallIn this patient who presented with spontaneous rupture of a small intestinal GIST, the novel use of targeted

Keywords： gastrointestinal stromal tumour     hemoperitoneum     small bowel GIST     small bowel neoplasm     imatinib    

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Investigation of the Influence of Pitch/Lag on Helicopter AirResonance Stability

Xue Haifeng,Xiang Jinwu,Zhang Xiaogu,Li Shuqiang

Strategic Study of CAE 2007, Volume 9, Issue 9,   Pages 58-62

Abstract:

The influence of pitch/lag coupling on helicopter air resonance is investigated First,  helicopter air resonance equations of motion considering pitch/lag coupling is derived,  related analysis model and calculation programs are built to study the effect of pitch/lag couplingof different degrees of freedom,  the explanations of the helicopter air resonance considering pitch The results indicated that the positive pitch/lag coupling can restrain the instability of helicopter

Keywords： helicopter     dynamics instability     helicopter air resonance     pitch/lag coupling    

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Simulation and experimental improvement on a small-scale Stirling thermo-acoustic engine

Mao CHEN,Yonglin JU

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 37-45 doi: 10.1007/s11708-015-0390-6

Abstract: In this paper, the influence of the dimensions of the main parts of the small-scale Stirling thermo-acousticBased on the numerical simulation, a small-scale Stirling thermo-acoustic engine were constructed and

Keywords： thermo-acoustic Stirling engine     small-scale     simulation     experiment    

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Discovery of small molecule degraders for modulating cell cycle

Frontiers of Medicine   Pages 823-854 doi: 10.1007/s11684-023-1027-5

Abstract: The cell cycle is a complex process that involves DNA replication, protein expression, and cell division. Dysregulation of the cell cycle is associated with various diseases. Cyclin-dependent kinases (CDKs) and their corresponding cyclins are major proteins that regulate the cell cycle. In contrast to inhibition, a new approach called proteolysis-targeting chimeras (PROTACs) and molecular glues can eliminate both enzymatic and scaffold functions of CDKs and cyclins, achieving targeted degradation. The field of PROTACs and molecular glues has developed rapidly in recent years. In this article, we aim to summarize the latest developments of CDKs and cyclin protein degraders. The selectivity, application, validation and the current state of each CDK degrader will be overviewed. Additionally, possible methods are discussed for the development of degraders for CDK members that still lack them. Overall, this article provides a comprehensive summary of the latest advancements in CDK and cyclin protein degraders, which will be helpful for researchers working on this topic.

Keywords： PROTAC     molecular glue     degrader     cell cycle     CDK     cyclin    

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Computation of the protein molecular mechanism using adaptive dihedral angle increments

Mikel DIEZ, Victor PETUYA, Mónica URIZAR, Erik MACHO, Oscar ALTUZARRRA

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1,   Pages 104-108 doi: 10.1007/s11465-013-0360-9

Abstract:

Protein motion simulation is still a troublesome problem yet to be solved, especially due to its high computational requirements. The procedure presented in this paper makes use of the proteins’ real degrees of freedom (DOFs). The procedure makes no use of any intermediate energy minimization processes that may alter the motion path or result in very high computational cost requirements. In order to reduce the computational cost, presented algorithms make use of the balls and rods approach for protein structure modelization. Also, structures are normalized in order to minimize inaccuracies introduced by experimental methods, providing a more efficient but still accurate structure for motion simulation.

Keywords： kinematics     serial robot     proteins     folding     molecular mechanism    

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Title Author Date Type Operation

A space-saving steering method for underwater gliders in lake monitoring

Yu-shi ZHU, Can-jun YANG, Shi-jun WU, Qing LI, Xiao-le XU

Journal Article

CFD simulation on shell-and-tube heat exchangers with small-angle helical baffles

Minhua ZHANG,Fang MENG,Zhongfeng GENG

Journal Article

Development of a redundant anthropomorphic hydraulically actuated manipulator with a roll–pitch–yaw spherical

Journal Article

Haloacetic acids in swimming pool and spa water in the United States and China

Xiaomao WANG,Garcia Leal M I,Xiaolu ZHANG,Hongwei YANG,Yuefeng XIE

Journal Article

Lamellar thickness transition of melt-crystallized polybuten-1 tetragonal phase: configurational change in chain folding directions

Motoi YAMASHITA

Journal Article

Precise semi-analytical inverse kinematic solution for 7-DOF offset manipulator with arm angle optimization

Journal Article

Evaluating the material strength from fracture angle under uniaxial loading

Jitang FAN

Journal Article

Power maximization of variable-speed variable-pitch wind turbines using passive adaptive neural fault

Hamed HABIBI, Hamed RAHIMI NOHOOJI, Ian HOWARD

Journal Article

An investigation on modification mechanism of CH

Qiang XIN, Shanghong HUANG

Journal Article

Transversal tube pitch effects on local heat transfer characteristics of the flat tube bank fin mounted

Liangbi WANG, Zhimin LIN, Kangjie SUN, Yuanxin DONG, Song LIU, Yongheng ZHANG,

Journal Article

A ruptured recurrent small bowel gastrointestinal stromal tumour causing hemoperitoneum

Eric C.H. Lai,Kam Man Chung,Stephanie H.Y. Lau,Wan Yee Lau

Journal Article

Investigation of the Influence of Pitch/Lag on Helicopter AirResonance Stability

Xue Haifeng,Xiang Jinwu,Zhang Xiaogu,Li Shuqiang

Journal Article

Simulation and experimental improvement on a small-scale Stirling thermo-acoustic engine

Mao CHEN,Yonglin JU

Journal Article

Discovery of small molecule degraders for modulating cell cycle

Journal Article

Computation of the protein molecular mechanism using adaptive dihedral angle increments

Mikel DIEZ, Victor PETUYA, Mónica URIZAR, Erik MACHO, Oscar ALTUZARRRA

Journal Article