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Fine-tuning cell organelle dynamics during mitosis by small GTPases

Frontiers of Medicine 2022, Volume 16, Issue 3, Pages 339-357 doi: 10.1007/s11684-022-0926-1

Abstract: During mitosis, the allocation of genetic material concurs with organelle transformation and distribution. The coordination of genetic material inheritance with organelle dynamics directs accurate mitotic progression, cell fate determination, and organismal homeostasis. Small GTPases belonging to the Ras superfamily regulate various cell organelles during division. Being the key regulators of membrane dynamics, the dysregulation of small GTPases is widely associated with cell organelle disruption in neoplastic and non-neoplastic diseases, such as cancer and Alzheimer’s disease. Recent discoveries shed light on the molecular properties of small GTPases as sophisticated modulators of a remarkably complex and perfect adaptors for rapid structure reformation. This review collects current knowledge on small GTPases in the regulation of cell organelles during mitosis and highlights the mediator role of small GTPase in transducing cell cycle signaling to organelle dynamics during mitosis.

Keywords： small GTPase cell organelle mitosis

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Variable identification and automatic tuning of the main module of a servo system of parallel mechanism

YANG Zhiyong, XU Meng, HUANG Tian, NI Yanbing

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1, Pages 82-88 doi: 10.1007/s11465-007-0014-x

Abstract: The variables of the main module of a servo system for miniature reconfigurable parallel mechanism were identified and automatically tuned. With the reverse solution module of the translation, the module with the exerted translation joint was obtained, which included the location, velocity and acceleration of the parallelogram carriage-branch. The rigid dynamic reverse model was set as the virtual work principle. To identify the variables of the servo system, the triangle-shaped input signal with variable frequency was adopted to overcome the disadvantages of the pseudo-random number sequence, i.e., making the change of the vibration amplitude of the motor dramatically, easily impact the servo motor and make the velocity loop open and so on. Moreover, all the variables including the rotary inertia of the servo system were identified by the additive mass. The overshoot and rise time were the optimum goals, the limited changing load with the attitude was considered, and the range of the controller variables in the servo system was identified. The results of the experiments prove that the method is accurate.

Keywords： acceleration reconfigurable parallel additive sequence parallel mechanism

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Task-space position/attitude tracking control of FAST fine tuning system

QI Lin, ZHANG Hui, DUAN Guanghong

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4, Pages 392-399 doi: 10.1007/s11465-008-0056-8

Abstract: This paper addresses the task-space position/attitude tracking control of a suspended parallel robot, which is being developed in the framework of a five-hundred meter aperture spherical radio telescope (FAST) project. Based on the quaternion algebra, a novel model-independent task-space PD controller that ensures end-effector position and attitude tracking is presented. The simulation and experimental results show that the new controller has better control effects than the traditional joint-space controller.

Keywords： telescope five-hundred end-effector controller simulation

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Surprising Advances in Generative Artificial Intelligence Prompt Amazement—and Worries

Dana Mackenzie

Engineering 2023, Volume 25, Issue 6, Pages 9-11 doi: 10.1016/j.eng.2023.04.004

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Research and application of visual location technology for solder paste printing based on machine vision

Luosi WEI, Zongxia JIAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2, Pages 184-191 doi: 10.1007/s11465-009-0034-9

Abstract: This paper presents an integrated visual location system for solder paste printing based on machine visionworking principle of solder paste printing is introduced and then the design and implementation of the visual

Keywords： machine vision visual location solder paste printing VisionPro

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A visual graphic approach for mobility analysis of parallel mechanisms

Xu PEI, Jingjun YU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 1, Pages 92-95 doi: 10.1007/s11465-011-0213-3

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Isolating higher yielding and more stable rice genotypes in stress environments: fine-tuning a selection

Frontiers of Agricultural Science and Engineering doi: 10.15302/J-FASE-2023521

Abstract:

● Score index methods readily discriminate genotypes adapted to a target environment.

Keywords： Aerobic rice breeding selection drought resilience production capacity index resilience capacity index stress score index upland

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Visual Inspection Technology and its Application

Ye Shenghua,Zhu Jigui,Wang Zhong,Yang Xueyou

Strategic Study of CAE 1999, Volume 1, Issue 1, Pages 49-52

Abstract:

Visual inspection, especially, the active visual inspection and passive visual inspection based onVisual inspection is a advanced inspection technology, satisfies modern manufacturing demands.This paper discusses the principle of visual inspection, studies several developed applied visual inspectionsystems, these systems demostrate wide application foreground of visual inspection from different points

Keywords： active visual inspection passive visual inspection inspection system modern manufacturing

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An autonomous miniature wheeled robot based on visual feedback control

CHEN Haichu

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 2, Pages 197-200 doi: 10.1007/s11465-007-0033-7

Abstract: A Charge Coupled Device (CCD) camera is used for measuring and for visual navi gation.The visual navigation and control system allow the robot to navigate and track the target and to accomplish

Keywords： measuring distance autonomous locomotion advantage navigation

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A quantitative attribute-based benchmark methodology for single-target visual tracking Article

Wen-jing KANG, Chang LIU, Gong-liang LIU

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 3, Pages 405-421 doi: 10.1631/FITEE.1900245

Abstract: In the past several years, various visual object tracking benchmarks have been proposed, and some ofIn this paper, 12 frame-wise visual attributes that reflect different aspects of the characteristics

Keywords： Visual tracking Performance evaluation Visual attributes Computer vision

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Interactive visual labelling versus active learning: an experimental comparison Research

Mohammad CHEGIN, Jürgen BERNARD, Jian CUI, Fatemeh CHEGINI, Alexei SOURIN, Keith Keith, Tobias SCHRECK

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 4, Pages 524-535 doi: 10.1631/FITEE.1900549

Abstract: Interactive visual labelling techniques are a promising alternative, providing effective visual overviewsWhile initial results of interactive visual labelling techniques are promising in the sense that userThe results show that all three interactive visual labelling techniques surpass active learning algorithms

Keywords： Interactive visual labelling Active learning Visual analytics

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Design of an enhanced visual odometry by building and matching compressive panoramic landmarks online

Wei LU,Zhi-yu XIANG,Ji-lin LIU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 2, Pages 152-165 doi: 10.1631/FITEE.1400139

Abstract: Traditional visual localization systems, such as visual odometry (VO) and simultaneous localization and

Keywords： Visual odometry Panoramic landmark Landmark matching Compressed sensing Adaptive compressive feature

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Application of RFID in the Visual Logistics System

Wang Aiming,Mu Xiaoxi,Li Aihua

Strategic Study of CAE 2006, Volume 8, Issue 8, Pages 65-68

Abstract: Applying RFID to visual logistics system, can gain actual requirement of guaranteed object and informationThe paper introduces the RFID system and its principle, and brings about an application of RFID in visual

Keywords： visual logistics radio frequency identification visual system for the carrying materials

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Tuning the catalytic selectivity in electrochemical CO

Jiafang XIE,Yuxi HUANG,Hanqing YU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5, Pages 861-866 doi: 10.1007/s11783-014-0742-1

Abstract: By tuning the electrochemical parameters, either Cu oxide nanowires or nanoneedles were fabricated and

Keywords： electrochemical CO₂ reduction Cu oxide nanostructure selectivity hydrocarbon formation

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On visual knowledge Perspective

Yun-he PAN

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 8, Pages 1021-1025 doi: 10.1631/FITEE.1910001

Abstract: 提出“视觉知识”概念。视觉知识是知识表达的一种新形式. 它与迄今为止人工智能（AI）所用知识表达方法不同. 其中视觉概念具有典型（prototype）与范畴结构、层次结构与动作结构等要素. 视觉概念能构成视觉命题，包括场景结构与动态结构，视觉命题能构成视觉叙事。指出重构计算机图形学成果可实现视觉知识表达及其推理与操作，重构计算机视觉成果可实现视觉知识学习。实现视觉知识表达、推理、学习和应用技术将是AI 2.0取得突破的重要方向之一。

Keywords： None

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Title Author Date Type Operation

Fine-tuning cell organelle dynamics during mitosis by small GTPases

Journal Article

Variable identification and automatic tuning of the main module of a servo system of parallel mechanism

YANG Zhiyong, XU Meng, HUANG Tian, NI Yanbing

Journal Article

Task-space position/attitude tracking control of FAST fine tuning system

QI Lin, ZHANG Hui, DUAN Guanghong

Journal Article

Surprising Advances in Generative Artificial Intelligence Prompt Amazement—and Worries