检索结果-内蒙古大学图书馆

5th International Conference on Advances in Computing, Communications and Informatics, ICACCI 2016

作者： Amrita, Lijina P Kumaar, A.A. Nippun Robotics Research Centre Dept of Computer Science and Engineering Amrita School of Engineering Bengaluru Amrita Vishwa Vidyapeetham Amrita University India

ISBN: (纸本)9781509020287

Multi-robot system is gaining its importance in robotic research. One critical issue in multi-robot system is collision among the mobile robots while sharing same workspace. This paper deals with the collision-free path planning for multiple mobile robots using Bluetooth RSSI value. In the proposed collision avoidance algorithm a decentralized approach with fixed priority level for robots is considered. A variable speed technique based on the RSSI value of robots is used and the obstacle avoidance is implemented based on State based Obstacle Avoidance Algorithm. Proposed algorithm is implemented and tested using Webots 3D simulator. © 2016 IEEE.

关键词： Motion planning

来源：评论

学校读者我要写书评

暂无评论

Quantitative Analysis of Colonic Epithelial Cell Aging in a Cell-cycle like Model: Changes in Nucleus and Cytoplasm Along the Crypt Axis

Quantitative Analysis of Colonic Epithelial Cell Aging in a ...

引用

Medical Imaging 2025: Digital and Computational Pathology

作者： Bao, Shunxing Wang, Yaohong Rudravaram, Gaurav Zhang, Rendong Deng, Ruining Yu, Xin Gao, Chenyu Li, Jia Li, Yike Roland, Joseph T. Zuo, Lianrui Liu, Qi Lau, Ken S. Coburn, Lori A. Wilson, Keith T. Landman, Bennett A. Huo, Yuankai Department of Electrical and Computer Engineering Vanderbilt University NashvilleTN United States Department of Anatomical Pathology UT MD Anderson Cancer Center HoustonTX United States Department of Computer Science Vanderbilt University NashvilleTN United States Department of Biostatistics Vanderbilt University Medical Center Nashville United States Department of Otolaryngology-Head and Neck Surgery Vanderbilt University Medical Center NashvilleTN United States Department of Surgery Vanderbilt University Medical Center NashvilleTN United States Department of Cell and Developmental Biology Vanderbilt University School of Medicine NashvilleTN United States Vanderbilt University Medical Center Division of Gastroenterology Hepatology and Nutrition Department of Medicine Nashville United States Vanderbilt University Medical Center Vanderbilt Center for Mucosal Inflammation and Cancer Nashville United States Vanderbilt University School of Medicine Program in Cancer Biology Nashville United States Veterans Affairs Tennessee Valley Healthcare System NashvilleTN United States Vanderbilt University Medical Center Department of Pathology Microbiology and Immunology NashvilleTN United States

ISBN: (纸本)9781510686045

Understanding epithelial cell aging in bowel tissue can provide critical insights into gastrointestinal (GI) health, potentially leading to improved diagnosis, treatment, and prevention strategies for various GI conditions. Despite the significance of cellular aging in the GI tract, previous studies have not quantified epithelial cell maturity development along the base-to-surface axis of colon crypts due to the labor-intensive nature of manual quantification and the lack of a clear definition of cellular age. Moreover, the process faces tremendous challenges when tissue is cut in 2D and examines results solely from one or a few biopsy cuts without reconstructing the full 3D space, as the original cell structure is 3D, leading to variability based on the cut angle. This research addresses these challenges by systematically analyzing the relationship between epithelial cell morphology and their position from the base to the surface in colon crypt tissue. Our approach involves using multiplex immunofluorescence (MxIF) imaging for cell nuclei segmentation, identifying the potential full longitudinal cut, and manually annotating the surface and base of the colon crypts. By analyzing the epithelial cells, we create density maps to investigate the relationship between nucleus size and the surface-to-base distance ratio, defining this ratio as cell age. We also examine the nucleus-to-cytoplasm (N/C) ratio in relation to cell age. For the statistical analysis, we use a robust linear regression model to remove outliers and a random effects model for the final regression. Our results show a decreasing trend in both the N/C ratio and nucleus size as epithelial cells move from the base to the surface. These findings provide a quantitative pipeline for single-cell profiling in a spatial manner, facilitating broader analysis of epithelial cell aging and its implications for GI health. © 2025 SPIE.

关键词： Linear regression

来源：评论

学校读者我要写书评

暂无评论

Computational design of serine hydrolases

引用

science (New York, N.Y.) 2025年第6744期388卷 eadu2454页

作者： Lauko, Anna Pellock, Samuel J. Sumida, Kiera H. Anishchenko, Ivan Juergens, David Ahern, Woody Jeung, Jihun Shida, Alexander F. Hunt, Andrew Kalvet, Indrek Norn, Christoffer Humphreys, Ian R. Jamieson, Cooper Krishna, Rohith Kipnis, Yakov Kang, Alex Brackenbrough, Evans Bera, Asim K. Sankaran, Banumathi Houk, K.N. Baker, David Department of Biochemistry University of Washington Seattle WA United States Institute for Protein Design University of Washington Seattle WA United States Graduate Program in Biological Physics Structure and Design University of Washington Seattle WA United States Department of Chemistry University of Washington Seattle WA United States Graduate Program in Molecular Engineering University of Washington Seattle WA United States Paul G. Allen School of Computer Science and Engineering University of Washington Seattle WA United States Medical Scientist Training Program University of Washington Seattle WA United States Howard Hughes Medical Institute University of Washington Seattle WA United States Department of Chemistry and Biochemistry University of California Los Angeles CA United States

The design of enzymes with complex active sites that mediate multistep reactions remains an outstanding challenge. With serine hydrolases as a model system, we combined the generative capabilities of RFdiffusion with an ensemble generation method for assessing active site preorganization at each step in the reaction to design enzymes starting from minimal active site descriptions. Experimental characterization revealed catalytic efficiencies (kcat/Km) up to 2.2 × 105 M-1 s-1 and crystal structures that closely match the design models (Cα root mean square deviations <1 angstrom). Selection for structural compatibility across the reaction coordinate enabled identification of new catalysts remove with five different folds distinct from those of natural serine hydrolases. Our de novo approach provides insight into the geometric basis of catalysis and a roadmap for designing enzymes that catalyze multistep transformations.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Analysis of Parity-Based Search Algorithms for Execution of Target Node in Relation to Automation Applications 2

Analysis of Parity-Based Search Algorithms for Execution of ...

引用

2nd IEEE International Conference on Electrical Power and Energy Systems, ICEPES 2021

作者： Pimpale, Yogita Kanday, Rajeev Gupta, Sachin Lovely Professional University Robotics and Control Engineering Phagwara India Lovely Professional University School of Computer Science and Engineering Phagwara India

ISBN: (纸本)9781665402361

In the era of Industry 4.0, machines are performing their assigned tasks smartly by using intelligent thinking approach. With the advancement in artificial intelligence-based algorithms, the machines are executing the decision nodes in relation to occurrence of situation from array of sensors for best judgement to actuate processes. In this regard, the processing unit of machine is trained to search for optimal solution in the data repository by using certain sequential and counter sequential approaches. The performance measures such as time and space complexity of these approaches directly pin pointing the placement of nodes and its web connection. Toward this challenge, in this paper, a new parity-based search algorithm is designed for search and execution of optimal node in relation to target node. The algorithm is genetically integrated with blind and heuristic search of node to explore different index wise parities. Sufficient number of iterative trails were done to measure the key performance parameters and comparative analysis were done for significant inferences. The algorithm is designed and simulated in LabVIEW-2020 workbench. From the results, it has been observed that the even and odd parity-based time complexity performance is appreciable in trade off with other performance parameters. The execution speed of modified parity modules gives an optimal solution in different situations to make automation process faster and reliable. From this study, new search-based strategies can be developed and implemented in automation sector for betterment. © 2021 IEEE.

关键词： Heuristic algorithms

来源：评论

学校读者我要写书评

暂无评论

TFENet: Topological Feature Extraction Network for 6D Object Pose Estimation

TFENet: Topological Feature Extraction Network for 6D Object...

引用

2023 China Automation Congress, CAC 2023

作者： Zhang, Zhihao Li, Zhengrong Lin, Jiacheng Li, Zhiyong Chen, Wenrui College of Computer Science and Electronic Engineering Hunan University Changsha China School of Robotics Hunan University Changsha China

ISBN: (纸本)9798350303759

Grasping is an essential and challenging skill for robots to interact with their environment. Accurately obtaining the 6D pose information of the grasped object is the key to successful grasping. Due to the influence of illumination changes and object textures, the previous methods had problems with low utilization of depth information and inaccurate feature information. We study feature information extraction and fusion to address these issues and proposed a topological feature extraction network (TFENet). Firstly, we design TFE module to achieve global feature extraction from object point clouds, through which features can be identified to use depth information efficiently. Secondly, we design a MFF module to fuse color and geometric embedding better. Finally, experiments show that the proposed method outperforms existing methods with two datasets, LineMOD and YCB-Video. © 2023 IEEE.

关键词： Feature extraction

来源：评论

学校读者我要写书评

暂无评论

SCASAN: Spatial Central Attention-Spectral Attention Network Based Feature Extractor for Hyperspectral Image Classification

SCASAN: Spatial Central Attention-Spectral Attention Network...

引用

2023 China Automation Congress, CAC 2023

作者： Zhao, Wei Zhang, Hui Cao, Yihong Liu, Lizhu Su, Yingjian School of Robotics Hunan University Changsha China College of Computer Science and Electronic Engineering Hunan University Changsha China

ISBN: (纸本)9798350303759

Due to the influence of space, time, environmental changes, and types of ground objects on the lighting conditions of high-light falling images, Hyperspectral image (HSI) classification is challenging. Recently, attention-based HSI classification has received increasing attention. It uses both spatial attention and spectral attention to capture the required spatial-spectral features, thereby achieving better classification accuracy. However, it is challenging to connect the two attention mechanisms without compromising the spatial-spectral features. In addition, how to obtain the attention weight matrix which determines the importance of each channel or spatial location is also an important problem in the use of attention mechanisms. In response to the above issues, the Spatial Central Attention-Spectral Attention network (SCASAN) is designed to efficiently model the spatial-spectral information for HSI classification. In this network, we propose the novel spectral weight spatial attention (SWSA) module to solve the connection problem between spatial attention and spectral attention. Furthermore, we utilize a spatial central attention network (spatial CAN) to obtain a spatial attention weight matrix to avoid the impact of non-homogeneous adjacent pixels on the classified pixel. Our proposed approach demonstrates superior performance in hyperspectral image classification compared to state-of-the-art methods, as evidenced by comprehensive experiments conducted on three publicly available datasets. © 2023 IEEE.

关键词： Classification (of information)

来源：评论

学校读者我要写书评

暂无评论

REMOTELY CONTROLLABLE DNA MICROFLOW 26

REMOTELY CONTROLLABLE DNA MICROFLOW

引用

26th International Conference on Miniaturized Systems for Chemistry and Life sciences, MicroTAS 2022

作者： Udono, Hirotake Nomura, Shin-Ichiro M. Takinoue, Masahiro Department of Computer Science School of Computing Tokyo Institute of Technology Japan Department of Robotics Graduate School of Engineering Tohoku University Japan

ISBN: (纸本)9781733419048

Despite an emerging interest in fluid manipulation within confined environment such as biological cells and micro-scale biomimics, remotely controllable micro-scale flow remains unexplored. However, intracellular microfluidics is not compatible with established top-down microfluidic methods because of limited accessibility. Here, we demonstrate photoresponsive DNA fluid, condensate of DNA nanostructures (DNA motifs), as a versatile mechanistic tool for the remote control of microflow. Insertion site of azobenzene, introduced for photocontrollability, determines an extent of dynamic shift in binding enthalpy between DNA motifs, providing the underpinning mechanism for drastic and facile flow-mode switching. © 2022 MicroTAS 2022 - 26th International Conference on Miniaturized Systems for Chemistry and Life sciences. All rights reserved.

关键词： Remote control

来源：评论

学校读者我要写书评

暂无评论

Stress detection system for social media users 7

Stress detection system for social media users

引用

7th International Conference on computer science and Computational Intelligence, CSCI 2022

作者： Febriansyah, Mochamad Rizky Nicholas Yunanda, Rezki Suhartono, Derwin Computer Science Department School of Computer Science Bina Nusantara University Jakarta11480 Indonesia Software Engineering Program Computer Science Department School of Computer Science Bina Nusantara University Jakarta11480 Indonesia

Stress detection is a growing topic in the field of natural language processing. The study of stress detection for mental health prediction has been proven to benefit the development of recommender systems and automated mental health assessments in previous studies. Additionally, the widespread usage of social media has served as a potential data source for developing such models. Our research tried to detect whether the users of social media were under stress or not. We used a dataset from Dreaddit consisting of posts from one of the popular social media platforms, Reddit. We propose a machine learning model consisting of Support Vector Machine (SVM), Naïve Bayes, Decision Tree, Random Forest, Bag of Words, and Term Frequency - inverse document frequency (TF-IDF) for stress detection. The final evaluation of the model achieved an 80.00% F-1 Score and 75.00% accuracy, and both were scored by SVM. © 2022 Elsevier B.V.. All rights reserved.

关键词： Support vector machines

来源：评论

学校读者我要写书评

暂无评论

A Multi-trace Surface Integral Equation Solver to Analyze Electromagnetic Field Interactions on Graphene-based Devices

A Multi-trace Surface Integral Equation Solver to Analyze El...

引用

2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio science Meeting, AP-S/URSI 2022

作者： Zhao, Ran Chen, Liang Hu, Jun Bagci, Hakan Electrical and Computer Engineering Program Computer Electrical and Mathematical Science and Engineering Division Thuwal23955 Saudi Arabia School of Electronic Science and Engineering Chengdu610056 China

ISBN: (数字)9781665496582

ISBN: (纸本)9781665496582

A multi-trace surface integral equation (MT-SIE) solver is proposed to analyze electromagnetic field interactions on graphene-based devices. This solver decomposes the computation domain into an exterior subdomain (the background medium where the device resides in) and an interior subdomain that represents the device's dielectric substrate. The infinitesimally thin graphene sheet partially covers the interface between these two subdomains. On the graphene surface and the rest of this interface, resistive Robin transmission conditions (formulated for the first time in this work) and the traditional Robin transmission conditions are used to "connect"these two subdomains, respectively. In each subdomain, the electric and magnetic field equations are used as the governing equations. Various numerical examples are presented to demonstrate the accuracy and the applicability of the proposed MT-SIE solver. © 2022 IEEE.

关键词： Graphene

来源：评论

学校读者我要写书评

暂无评论

AnyTSR: Any-Scale Thermal Super-Resolution for UAV

arXiv

引用

arXiv 2025年

作者： Li, Mengyuan Fu, Changhong Lu, Ziyu Zhang, Zijie Zuo, Haobo Yao, Liangliang School of Mechanical Engineering Tongji University Shanghai201804 China Shanghai Key Laboratory of Wearable Robotics and Human-Machine Interaction Tongji University Shanghai201804 China Department of Computer Science University of Hong Kong Hong Kong999077 Hong Kong

Thermal imaging can greatly enhance the application of intelligent unmanned aerial vehicles (UAV) in challenging environments. However, the inherent low resolution of thermal sensors leads to insufficient details and blurred boundaries. Super-resolution (SR) offers a promising solution to address this issue, while most existing SR methods are designed for fixed-scale SR. They are computationally expensive and inflexible in practical applications. To address above issues, this work proposes a novel any-scale thermal SR method (AnyTSR) for UAV within a single model. Specifically, a new image encoder is proposed to explicitly assign specific feature code to enable more accurate and flexible representation. Additionally, by effectively embedding coordinate offset information into the local feature ensemble, an innovative any-scale upsampler is proposed to better understand spatial relationships and reduce artifacts. Moreover, a novel dataset (UAV-TSR), covering both land and water scenes, is constructed for thermal SR tasks. Experimental results demonstrate that the proposed method consistently outperforms state-of-the-art methods across all scaling factors as well as generates more accurate and detailed high-resolution images. The code is located at https:// ***/vision4robotics/AnyTSR. Copyright © 2025, The Authors. All rights reserved.

关键词： Drones

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：