检索结果-内蒙古大学图书馆

Prostate cancer histopathology using label-free multispectral deep-UV microscopy quantifies phenotypes of tumor aggressiveness and enables multiple diagnostic virtual stains

Research Square

引用

Research Square 2021年

作者： Soltani, Soheil Ojaghi, Ashkan Qiao, Hui Kaza, Nischita Li, Xinyang Dai, Qionghai Osunkoya, Adeboye O. Robles, Francisco E. Wallace H. Coulter Dept. of Biomedical Engineering Georgia Institute of Technology Emory University AtlantaGA30332 United States Department of Automation Tsinghua University Beijing100084 China School of Electrical and Computer Engineering Georgia Institute of Technology AtlantaGA30313 United States Departments of Pathology and Urology Emory University School of Medicine AtlantaGA30322 United States Winship Cancer Institute of Emory University AtlantaGA30322 United States

Identifying prostate cancer patients that are harboring aggressive forms of prostate cancer remains a significant clinical challenge. Here we develop an approach based on multispectral deep-ultraviolet (UV) microscopy that provides novel quantitative insight into the aggressiveness and grade of this disease, thus providing a new tool to help address this important challenge. We find that UV spectral signatures from endogenous molecules give rise to a phenotypical continuum that provides unique structural insight (i.e., molecular maps or "optical stains") of thin tissue sections with subcellular (nanoscale) resolution. We show that this phenotypical continuum can also be applied as a surrogate biomarker of prostate cancer malignancy, where patients with the most aggressive tumors show a ubiquitous glandular phenotypical shift. In addition to providing several novel "optical stains" with contrast for disease, we also adapt a two-part Cycle-consistent Generative Adversarial Network to translate the label-free deep-UV images into virtual hematoxylin and eosin (H&E) stained images, thus providing multiple stains (including the gold-standard H&E) from the same unlabeled specimen. Agreement between the virtual H&E images and the H&E-stained tissue sections is evaluated by a panel of pathologists who find that the two modalities are in excellent agreement. This work has significant implications towards improving our ability to objectively quantify prostate cancer grade and aggressiveness, thus improving the management and clinical outcomes of prostate cancer patients. This same approach can also be applied broadly in other tumor types to achieve low-cost, stain-free, quantitative histopathological analysis. © 2021, CC BY.

关键词： Grading

来源：评论

学校读者我要写书评

暂无评论

Point-of-Interest Recommendation in Location-Based Social Networks

Point-of-Interest Recommendation in Location-Based Social Ne...

引用

International Informatics and Software engineering Conference (UBMYK)

作者： Elifgül Çakmak Buket Kaya Mehmet Kaya Dept. of Computer Engineering Fırat University Elazığ Turkey Dept. of Electronics and Automation Fırat University Elazığ Turkey

This article investigates the problem of proposing new locations to users who have previously been informed about location-based social networks. In the study, user profiles (past location information), the popularity of the place and the time of preference of the place were obtained. Using this information, a different place is offered to the users. However, when users have a different location (a different city or country), it is provided to recommend one of the point of interests designated by categories according to the pre-made check-in details. Social media has been a component of daily life of users. Applications such as Foursquare/ Swarm constitute the data source of the communication that geographically contains location data. This study analyzes the personal behaviors of the users using social networks for the spaces and reveals the characteristics of the spaces and people by past notification activities through the applications made in the past. The experiments on real foursquare data showed the usability of the proposed method and achieved results with high accuracy.

关键词：

来源：评论

学校读者我要写书评

暂无评论

An Adaptive Blind Cyclic Calibration Technique for Two-Channel Frequency-Interleaved ADCs

An Adaptive Blind Cyclic Calibration Technique for Two-Chann...

引用

IEEE International Symposium on Circuits and Systems (ISCAS)

作者： Jinpeng Song Jianping An Yu-Hen Hu Yu Zhao Jian Gao School of Information and Electronics Beijing Institute of Technology Beijing 10081 China Dept. Electrical and Computer Engineering University of Wisconsin-Madison Madison 53706 USA School of Automation Engineering Univ. Elec. Science Technol. China Chengdu 611731 China

ISBN: (数字)9781728133201

ISBN: (纸本)9781728133218

A digital adaptive blind calibration technique for a two-channel frequency-interleaved analog-to-digital converter (2 FI-ADC) is proposed. It simultaneously estimates and corrects the inherent circuit errors, including spectral leakage, harmonic folding, jitters, I/Q and aliasing images, in a cyclic manner. The effectiveness of this novel architecture is validated via extensive simulations.

关键词： Calibration Estimation Harmonic analysis Bandwidth Jitter Clocks Mixers

来源：评论

学校读者我要写书评

暂无评论

Single-Stage PV-Battery Microinverter Energy Solutions with Decentralized Model for Single-Family Homes

Single-Stage PV-Battery Microinverter Energy Solutions with ...

引用

2019 IEEE Decentralized Energy Access Solutions Workshop, DEAS 2019

作者： Chen, Xi Kumar Bhattacharjee, Amit Alluhaybi, Khalil Hu, Haibing Batarseh, Issa Dept. of Electrical and Computer Engineering University of Central Florida Florida Power Electronics Center OrlandoFL United States Nanjing University of Aeronautics and Astronautics Jiangsu Key Laboratory of New Energy Generation Power Conversion College of Automation Engineering Nanjing Jiangsu China

ISBN: (纸本)9781728107950

This paper presents two different simple topologies to interface PV panel and battery packs according to energy needs and family income for single-family homes. The target of this paper is to provide reliable energy solutions for people living in areas without electricity in Africa and South Asia. A decentralized model has been applied to the proposed system architecture to allow the plug play functionality and power sharing without communication, and therefore, enhance the system flexibility. A simulation study was carried out to validate the operation of proposed topologies. © 2019 IEEE.

关键词： Battery Pack

来源：评论

学校读者我要写书评

暂无评论

2020 CATARACTS Semantic Segmentation Challenge

arXiv

引用

arXiv 2021年

作者： Luengo, Imanol Grammatikopoulou, Maria Mohammadi, Rahim Walsh, Chris Nwoye, Chinedu Innocent Alapatt, Deepak Padoy, Nicolas Ni, Zhen-Liang Fan, Chen-Chen Bian, Gui-Bin Hou, Zeng-Guang Ha, Heonjin Wang, Jiacheng Wang, Haojie Guo, Dong Wang, Lu Wang, Guotai Islam, Mobarakol Giddwani, Bharat Hongliang, Ren Pissas, Theodoros Ravasio, Claudio Huber, Martin Birch, Jeremy Nunez Do Rio, Joan M. da Cruz, Lyndon Bergeles, Christos Chen, Hongyu Jia, Fucang Tomar, Nikhil Kumar Jha, Debesh Riegler, Michael A. Halvorsen, Pal Bano, Sophia Vaghela, Uddhav Hong, Jianyuan Ye, Haili Huang, Feihong Wang, Da-Han Stoyanov, Danail Digital Surgery Ltd Medtronic Ireland ICube University of Strasbourg CNRS IHU Strasbourg France Institute of Automation Chinese Academy of Sciences China Hutom Seoul Korea Republic of Department of Computer Science Xiamen University Xiamen China University of Electronic Science and Technology of China Chengdu China Dept. of Biomedical Engineering National University of Singapore Singapore Dept. of Electronics and Telecoms. Engineering National Institute of Technology Raipur India School of Biomedical Engineering & Imaging Sciences King's College London London United Kingdom University College London London United Kingdom Institute of Ophthalmology University College London London United Kingdom Moorfields Eye Hospital London United Kingdom Shenzhen Institute of Advanced Technology Chinese Academyof Sciences China SimulaMet UiT The Arctic University of Norway Oslo Metropolitan University Norway Department of Computer Science University College London United Kingdom School of Computer and Information Engineering Xiamen University of Technology China

Surgical scene segmentation is essential for anatomy and instrument localization which can be further used to assess tissue-instrument interactions during a surgical procedure. In 2017, the Challenge on Automatic Tool Annotation for cataRACT Surgery (CATARACTS) released 50 cataract surgery videos accompanied by instrument usage annotations. These annotations included frame-level instrument presence information. In 2020, we released pixel-wise semantic annotations for anatomy and instruments for 4670 images sampled from 25 videos of the CATARACTS training set. The 2020 CATARACTS Semantic Segmentation Challenge, which was a sub-challenge of the 2020 MICCAI Endoscopic Vision (EndoVis) Challenge, presented three sub-tasks to assess participating solutions on anatomical structure and instrument segmentation. Their performance was assessed on a hidden test set of 531 images from 10 videos of the CATARACTS test set. © 2021, CC BY-NC-ND.

关键词： Semantics

来源：评论

学校读者我要写书评

暂无评论

Comparison of the Effectiveness of Various Structures of Regulators for Controlling an Object of the Sixth Order

Comparison of the Effectiveness of Various Structures of Reg...

引用

2019 International Multi-Conference on engineering, computer and Information Sciences, SIBIRCON 2019

作者： Zhmud, Vadim Dimitrov, Lubomir Nosek, Jaroslav Roth, Hubert Novosibirsk State Technical University Dept. of Automation Novosibirsk Russia Technical University of Sofia Sofia Bulgaria Technical University of Liberec Faculty of Mechatronics Computer Science and Interdisciplinary Research Liberec Czech Republic University of Siegen Department of Automatic Control Engineering Siegen Germany Germany

ISBN: (纸本)9781728144016

Object control requires the calculation of a regulator. One of the most effective methods for calculating the regulator is the method of numerical optimization of the regulator. This paper discusses the solution of the problem of controlling a linear object of the sixth order, the parameters of which are such that this high order significantly and negatively affects the possibilities of successfully managing this object. Using the traditional approach to the design problem of the controller (regulator) allows us to formally solve the problem;however, the result of this solution is not satisfactory. The use of additional derivation does not give any noticeable improvement. A solution to this problem is proposed by using pseudo-local feedback, moreover, this connection is supposedly most effective if it covers one of two identical links in the object model. This allows for a smoother attenuation of the frequency response of the object in the region where the action of these two links begins to affect. For pseudo-local communication, an additional PID controller is used, the coefficients of which are also determined by the method of numerical optimization. The optimization result allows us to conclude that the presence of an integral element in this controller is optional. The calculation result of such a composite controller meets the most stringent requirements for the quality of control, since in such a system the speed is increased at least twice, the oscillations, which were about 10% in amplitude, are completely eliminated, the robustness of the system is ensured, which is verified by changing all the controller coefficients by 5% up and down, and also by changing the time constant of the element of the pseudolocal loop by 10% up and down, changes in the transition process of the system in this case remain are acceptable. © 2019 IEEE.

关键词： Feedback

来源：评论

学校读者我要写书评

暂无评论

Computational Aspects Concerned with the Optimized Use of Wavelet Package Trees

Computational Aspects Concerned with the Optimized Use of Wa...

引用

International Conference on Electromechanical and Power Systems (SIELMEN)

作者： Scărlătescu Lucian Cristian Marian Ştefan Nicolae Petre Marian Nicolae Ileana Diana Nicolae Dorina Mioara Purcaru Dept. of Electrical Engineering Aeronautics and Energetics University of Craiova Romania Craiova Romania Dept. of Computer Science and Information Technology Department of Automation and Electronics University of Craiova Romania Craiova Romania

Decompositions of electric waveforms relying on the Wavelet Package Transform (WPT) provide numerous advantages but requires a significant amount of computational resources (runtime and memory). Previous study of some of the authors were concerned with special properties provided by the weights of energies supplied by odd harmonics in the final nodes of a WPT trees with 5 levels. New researches were made now considering the better sampling rate of modern data acquisition systems. Another topology, with 7 levels, was studied, and interesting results relative to much higher harmonic orders (up to the rank of 256) were obtained with respect to both even and odd harmonic orders. Studies on artificial waveforms polluted with a single harmonic were made firstly, revealing interesting aspects relative to clusters of nodes affected by the same group of harmonic orders. Different pairing patterns of odd and even harmonics were revealed, along with decisions on nodes being more relevant for certain harmonics. Afterward, studies on possible practical application of final nodes sensitivity to limited ranges of harmonic orders were made. The obtained results provide the support for simple computational techniques meant to reduce as much as possible the computational resources required by the WPT analysis.

关键词：

来源：评论

学校读者我要写书评

暂无评论

IoT Forensic A digital investigation framework for IoT systems

arXiv

引用

arXiv 2019年

作者： Sathwara, Snehal Dutta, Nitul Pricop, Emil Computer Engineering Department Marwadi University Rajkot Gujarat India Automation Computers & Electronics Dept. Petroleum-Gas University of Ploiesti Ploiesti Romania

Security issues, threats, and attacks in relation with the IoT have been identified as promising and challenging area of research. Eventually, the need for a forensics methodology for investigating IoT-related crime is therefore essential. However, the IoT poses many challenges for forensics investigators. These include the wide range and variety of information, the unclear lines of differentiation between networks, for example private networks increasingly fading into public networks. Further, integration of a large number of objects in IoT forensic interest, along with the relevance of identified and collected devices makes forensic of IoT devices more complicated. The scope of this paper is to present a framework for IoT forensic. We aimed at the study and development of the link to support digital investigations of IoT devices and tackle emerging challenges in digital forensics. We emphasize on various steps for digital forensic with respect to IoT devices. Copyright © 2019, The Authors. All rights reserved.

关键词： Digital forensics

来源：评论

学校读者我要写书评

暂无评论

ATVR: An Attention Training System using Multitasking and Neurofeedback on Virtual Reality Platform

ATVR: An Attention Training System using Multitasking and Ne...

引用

IEEE International Conference on Artificial Intelligence and Virtual Reality (AIVR)

作者： Menghe Zhang Junsong Zhang Dong Zhang dept. Computer Science and Engineering University of California San Diego La Jolla US dept. Cognitive Science Xiamen University Xiamen China Automation Institute Shandong Academy of Sciences Jinan China

ISBN: (数字)9781728156040

ISBN: (纸本)9781728156057

We present an attention training system based on the principles of multitasking training scenario and neurofeedback, which can be targeted on PCs and VR platforms. Our training system is a video game following the principle of multitasking training, which is designed for all ages. It adopts a non-invasive Electroencephalography (EEG) device Emotiv EPOC+ to collect EEG. Then wavelet package transformation(WPT) is applied to extract specific components of EEG signals. We then build a multi-class supporting vector machine(SVM) to classify different attention levels. The training system is built with the Unity game engine, which can be targeted on both desktops and Oculus VR headsets. We also launched an experiment by applying the system to preliminarily evaluate the effectiveness of our system. The results show that our system can generally improve users' abilities of multitasking and attention level.

关键词： Training Games Electroencephalography Neurofeedback Multitasking Support vector machines Wavelet packets

来源：评论

学校读者我要写书评

暂无评论

Synchronizing Sequences For Verification Of Finite State Machines

Synchronizing Sequences For Verification Of Finite State Mac...

引用

International Conference on Radio Electronics & Info Communications (UkrMiCo)

作者： Maryna Miroshnyk Olexander Shkil Elvira Kulak Dariia Rakhlis Yurii Pahomov Anatolii Miroshnyk dept. Specialized Computer Systems Ukrainian State University of Railway Transport Kharkiv Ukraine dept. Computer Engineering Design Kharkiv National University of Radio Electronics Kharkiv Ukraine dept. Automation and Control Technical Systems of the National Technical University "Kharkov Polytechnic Institute" Kharkiv Ukraine

ISBN: (数字)9781728126920

ISBN: (纸本)9781728126937

The method of detection and localization of design errors in HDL-models of finite state machines with arbitrary output functions was proposed. The diagnostic experiment is carried out bypassing all arcs of the Mealy machine, starting from the initial vertex, including for machines of the "non-exclusive" class. To ensure the return of the machine with a possible design error in the initial state, it is suggested to use synchronizing sequences. Diagnostic experiments were performed in the Active-HDL design environment.

关键词： Automata Decision trees Hardware design languages Simulation Finite element analysis Visualization Signal analysis

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：