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Non-Neural 3D Nasal Reconstruction:A Sparse Landmark Algorithmic Approach for Medical Applications
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作者 Nguyen Khac Toan Ho Nguyen Anh Tuan Nguyen Truong Thinh 《Computer Modeling in Engineering & Sciences》 2025年第5期1273-1295,共23页
This paper presents a novel method for reconstructing a highly accurate 3D nose model of the human from 2D images and pre-marked landmarks based on algorithmic methods.The study focuses on the reconstruction of a 3D n... This paper presents a novel method for reconstructing a highly accurate 3D nose model of the human from 2D images and pre-marked landmarks based on algorithmic methods.The study focuses on the reconstruction of a 3D nose model tailored for applications in healthcare and cosmetic surgery.The approach leverages advanced image processing techniques,3D Morphable Models(3DMM),and deformation techniques to overcome the limita-tions of deep learning models,particularly addressing the interpretability issues commonly encountered in medical applications.The proposed method estimates the 3D coordinates of landmark points using a 3D structure estimation algorithm.Sub-landmarks are extracted through image processing techniques and interpolation.The initial surface is generated using a 3DMM,though its accuracy remains limited.To enhance precision,deformation techniques are applied,utilizing the coordinates of 76 identified landmarks and sub-landmarks.The resulting 3D nose model is constructed based on algorithmic methods and pre-marked landmarks.Evaluation of the 3D model is conducted by comparing landmark distances and shape similarity with expert-determined ground truth on 30 Vietnamese volunteers aged 18 to 47,all of whom were either preparing for or required nasal surgery.Experimental results demonstrate a strong agreement between the reconstructed 3D model and the ground truth.The method achieved a mean landmark distance error of 0.631 mm and a shape error of 1.738 mm,demonstrating its potential for medical applications. 展开更多
关键词 Nose reconstruction 3D reconstruction medical applications algorithmic reconstruction enhanced 3D model
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Advances in Medical Applications of Additive Manufacturing 被引量:10
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作者 Chunxu Li Dario Pisignano +1 位作者 Yu Zhao Jiajia Xue 《Engineering》 SCIE EI 2020年第11期1222-1231,共10页
In the past few decades,additive manufacturing(AM)has been developed and applied as a cost-effective and versatile technique for the fabrication of geometrically complex objects in the medical industry.In this review,... In the past few decades,additive manufacturing(AM)has been developed and applied as a cost-effective and versatile technique for the fabrication of geometrically complex objects in the medical industry.In this review,we discuss current advances of AM in medical applications for the generation of pharmaceuticals,medical implants,and medical devices.Oral and transdermal drugs can be fabricated by a variety of AM technologies.Different types of hard and soft clinical implants have also been realized by AM,with the goal of producing tissue-engineered constructs.In addition,medical devices used for diagnostics and treatment of various pathological conditions have been developed.The growing body of research on AM reveals its great potential in medical applications.The goal of this review is to highlight the usefulness and elucidate the current limitations of AM applications in the medical field. 展开更多
关键词 Additive manufacturing medical applications PHARMACEUTICS medical implants medical devices
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Synthesis,functionalization,and nanomedical applications of functional magnetic nanoparticles 被引量:7
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作者 Zhou Chen Cao Wu +3 位作者 Zhenfeng Zhang Wangping Wu Xuefeng Wang Zhiqiang Yu 《Chinese Chemical Letters》 SCIE CAS CSCD 2018年第11期1601-1608,共8页
Synthesis of magnetic nanoparticles (MNPs) is one of the most active research areas in advanced materials. MNPs that have magnetic properties and other functionalities have been demonstrated to show great promise in... Synthesis of magnetic nanoparticles (MNPs) is one of the most active research areas in advanced materials. MNPs that have magnetic properties and other functionalities have been demonstrated to show great promise in nanomedical applications. This review summarizes the current MNPs preparation, functionalization and stabilization methods. It also analyzes the detailed features of MNPs. And furthermore it highlights some actual case analyses of these MNPs for disease therapy, drug delivery, hyperthermia, bioseparation and bioimaging applications. 展开更多
关键词 Magnetic nanoparticles SYNTHESIS FUNCTIONALIZATION medical applications NANOMEDICINE
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Impact of mobile health and medical applications on clinical practice in gastroenterology 被引量:3
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作者 Sven Kernebeck Theresa S Busse +4 位作者 Maximilian D Bottcher Jurgen Weitz Jan Ehlers Ulrich Bork Didactics Educational Research in Health 《World Journal of Gastroenterology》 SCIE CAS 2020年第29期4182-4197,共16页
Mobile health apps (MHAs) and medical apps (MAs) are becoming increasinglypopular as digital interventions in a wide range of health-related applications inalmost all sectors of healthcare. The surge in demand for dig... Mobile health apps (MHAs) and medical apps (MAs) are becoming increasinglypopular as digital interventions in a wide range of health-related applications inalmost all sectors of healthcare. The surge in demand for digital medical solutionshas been accelerated by the need for new diagnostic and therapeutic methods inthe current coronavirus disease 2019 pandemic. This also applies to clinicalpractice in gastroenterology, which has, in many respects, undergone a recentdigital transformation with numerous consequences that will impact patients andhealth care professionals in the near future. MHAs and MAs are considered tohave great potential, especially for chronic diseases, as they can support the selfmanagementof patients in many ways. Despite the great potential associated withthe application of MHAs and MAs in gastroenterology and health care in general,there are numerous challenges to be met in the future, including both the ethicaland legal aspects of applying this technology. The aim of this article is to providean overview of the current status of MHA and MA use in the field ofgastroenterology, describe the future perspectives in this field and point out someof the challenges that need to be addressed. 展开更多
关键词 Mobile health Health applications medical applications Technology TELEMEDICINE Mobile applications SMARTPHONE EHEALTH MHEALTH Digital biomarker Electronic health records
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Advances in Biomedical Applications of Hydrogels from Seaweed-Derived Sulfated Polysaccharides:Carrageenan,Fucoidan,and Ulvan
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作者 CUI Zhiyong JIANG Fei +2 位作者 LI Luxi CHI Zhe LIU Chenguang 《Journal of Ocean University of China》 SCIE CAS CSCD 2024年第5期1329-1346,共18页
Sulfated polysaccharides extracted from seaweeds,including Carrageenan,Fucoidan and Ulvan,are crucial bioactive compounds known for their diverse beneficial properties,such as anti-inflammatory,antitumor,immunomodulat... Sulfated polysaccharides extracted from seaweeds,including Carrageenan,Fucoidan and Ulvan,are crucial bioactive compounds known for their diverse beneficial properties,such as anti-inflammatory,antitumor,immunomodulatory,antiviral,and anticoagulant effects.These polysaccharides form hydrogels hold immense promise in biomedicine,particularly in tissue engineering,drug delivery systems and wound healing.This review comprehensively explores the sources and structural characteristics of the three important sulfated polysaccharides extracted from different algae species.It elucidates the gelation mechanisms of these polysaccharides into hydrogels.Furthermore,the biomedical applications of these three sulfated polysaccharide hydrogels in wound healing,drug delivery,and tissue engineering are discussed,highlighting their potential in the biomedicine. 展开更多
关键词 SEAWEED sulfated polysaccharides HYDROGELS biomaterials in medical applications
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MEDICAL APPLICATIONS OF SYNCHROTRON RADIATION
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作者 JIANG Xiao-Ming 《Beijing Synchrotron Radiation Facility》 2001年第2期220-225,共6页
The prineiples,present applications and progress in worldwide laboratories of in-vivo diagnosis and therapyAbstractmethods with synchrotron radiation sources are reviewed.Topics include angiography,computerized tormog... The prineiples,present applications and progress in worldwide laboratories of in-vivo diagnosis and therapyAbstractmethods with synchrotron radiation sources are reviewed.Topics include angiography,computerized tormography,bron-.chography,mammography,and radiation therapy. 展开更多
关键词 synchrotron radiation medical application in-vivo diagnosis radiation therapy
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Recent applications of EEG-based brain-computer-interface in the medical field 被引量:2
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作者 Xiu-Yun Liu Wen-Long Wang +39 位作者 Miao Liu Ming-Yi Chen Tânia Pereira Desta Yakob Doda Yu-Feng Ke Shou-Yan Wang Dong Wen Xiao-Guang Tong Wei-Guang Li Yi Yang Xiao-Di Han Yu-Lin Sun Xin Song Cong-Ying Hao Zi-Hua Zhang Xin-Yang Liu Chun-Yang Li Rui Peng Xiao-Xin Song Abi Yasi Mei-Jun Pang Kuo Zhang Run-Nan He Le Wu Shu-Geng Chen Wen-Jin Chen Yan-Gong Chao Cheng-Gong Hu Heng Zhang Min Zhou Kun Wang Peng-Fei Liu Chen Chen Xin-Yi Geng Yun Qin Dong-Rui Gao En-Ming Song Long-Long Cheng Xun Chen Dong Ming 《Military Medical Research》 2025年第8期1283-1322,共40页
Brain-computer interfaces(BCIs)represent an emerging technology that facilitates direct communication between the brain and external devices.In recent years,numerous review articles have explored various aspects of BC... Brain-computer interfaces(BCIs)represent an emerging technology that facilitates direct communication between the brain and external devices.In recent years,numerous review articles have explored various aspects of BCIs,including their fundamental principles,technical advancements,and applications in specific domains.However,these reviews often focus on signal processing,hardware development,or limited applications such as motor rehabilitation or communication.This paper aims to offer a comprehensive review of recent electroencephalogram(EEG)-based BCI applications in the medical field across 8 critical areas,encompassing rehabilitation,daily communication,epilepsy,cerebral resuscitation,sleep,neurodegenerative diseases,anesthesiology,and emotion recognition.Moreover,the current challenges and future trends of BCIs were also discussed,including personal privacy and ethical concerns,network security vulnerabilities,safety issues,and biocompatibility. 展开更多
关键词 Brain-computer interfaces(BCIs) medical applications REHABILITATION COMMUNICATION Brain monitoring DIAGNOSIS
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Generation of radioisotopes for medical applications using high-repetition,high-intensity lasers
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作者 Katarzyna Liliana Batani Marcia R.D.Rodrigues +23 位作者 Aldo Bonasera Mattia Cipriani Fabrizio Consoli Francesco Filippi Massimiliano M.Scisciò Lorenzo Giuffrida Vasiliki Kantarelou Stanislav Stancek Roberto Lera Jose Antonio Pérez-Hernández Luca Volpe I.C.Edmond Turcu Matteo Passoni Davide Vavassori David Dellasega Alessandro Maffini Marine Huault Howel Larreur Louis Sayo Thomas Carriere Philippe Nicolai Didier Raffestin Diluka Singappuli Dimitri Batani 《High Power Laser Science and Engineering》 2025年第1期109-124,共16页
We used the PW high-repetition laser facility VEGA-3 at Centro de Láseres Pulsados in Salamanca,with the goal of studying the generation of radioisotopes using laser-driven proton beams.Various types of targets h... We used the PW high-repetition laser facility VEGA-3 at Centro de Láseres Pulsados in Salamanca,with the goal of studying the generation of radioisotopes using laser-driven proton beams.Various types of targets have been irradiated including in particular several targets containing boron to generateα-particles through the hydrogen–boron fusion reaction.We have successfully identifiedγ-ray lines from several radioisotopes created by irradiation using lasergeneratedα-particles or protons including^(43)Sc,^(44)Sc,^(48)Sc,^(7)Be,^(11)C and^(18)F.We show that radioisotope generation can be used as a diagnostic tool to evaluateα-particle generation in laser-driven proton–boron fusion experiments.We also show the production of^(11)C radioisotopes,≈6×10~6,and of^(44)Sc radioisotopes,≈5×10~4per laser shot.This result can open the way to develop laser-driven radiation sources of radioisotopes for medical applications. 展开更多
关键词 RADIOISOTOPES laser driven protons proton boron fusion gamma ray spectroscopy medical applications
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Magnetic Continuum Robot for Intelligent Manipulation in Medical Applications
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作者 Yuanbiao Ma Xuanyu An +7 位作者 Qijun Yang Mingxue Cai Zhiqiang Tang Jinke Chang Veronica Iacovacci Tiantian Xu Li Zhang Qianqian Wang 《SmartBot》 2025年第2期4-24,共21页
Magnetic continuum robots(MCRs)have garnered substantial attention as a new class of flexible robotic systems capable of navigating complex and confined spaces with remarkable dexterity.By combining continuous,deforma... Magnetic continuum robots(MCRs)have garnered substantial attention as a new class of flexible robotic systems capable of navigating complex and confined spaces with remarkable dexterity.By combining continuous,deformable structures with remotely applied magnetic fields,MCRs achieve contactless,remote manipulation,making them well‐suited for medical ap-plications.This review introduces recent advances in MCR research,focusing on design principles,structural configurations,and control strategies.Various MCR designs and structures,including those integrated with permanent magnets,magnetic matter,ferromagnetic sphere,and micro coil,are discussed.Furthermore,different magnetic actuation platforms are intro-duced,and the level of MCR automation is classified based on control strategies.Key intelligent manipulation capabilities of MCRs,including navigation,delivery,printing,grasping,imaging,and sensing are explored.Finally,future development pri-orities and directions are identified to provide insights for advancing intelligent robotic systems. 展开更多
关键词 intelligent manipulation magnetic actuation magnetic continuum robot medical application
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Piezoresistive pressure sensor with high sensitivity for medical application using peninsula-island structure 被引量:2
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作者 Tingzhong XU Hongyan WANG +6 位作者 Yong XIA Zhiming ZHAO Mimi HUANG Jiuhong WANG Libo ZHAO Yulong ZHAO Zhuangde JIANG 《Frontiers of Mechanical Engineering》 SCIE CSCD 2017年第4期546-553,共8页
Abstract A novel micro-electromechanical systems piezoresistive pressure sensor with a diagonally positioned peninsula-island structure has high sensitivity for ultra- low-pressure measurement. The pressure sensor was... Abstract A novel micro-electromechanical systems piezoresistive pressure sensor with a diagonally positioned peninsula-island structure has high sensitivity for ultra- low-pressure measurement. The pressure sensor was designed with a working range of 0-500 Pa and had a high sensitivity of 0.06 mV-V^-1-Pa-1. The trade-off between high sensitivity and linearity was alleviated. Moreover, the influence of the installation angle on the sensing chip output was analyzed, and an application experiment of the sensor was conducted using the built pipettor test platform. Findings indicated that the proposed pressure sensor had sufficient resolution ability and accuracy to detect the pressure variation in the pipettor chamber. Therefore, the proposed pressure sensor has strong potential for medical equipment application. 展开更多
关键词 MEMS low pressure sensor peninsula-island ultra-high sensitivity medical application
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Millimeter waves in medical applications:status and prospects
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作者 Honglin Wang Lin Lu +9 位作者 Pengran Liu Jiayao Zhang Songxiang Liu Yi Xie Tongtong Huo Hong Zhou Mingdi Xue Ying Fang Jiaming Yang Zhewei Ye 《Intelligent Medicine》 EI CSCD 2024年第1期16-21,共6页
Millimeter waves are electromagnetic waves with wavelengths of 1–10 mm,which have characteristics of high frequency and short wavelength.They have gradually and widely been used in engineering and medical fields.We h... Millimeter waves are electromagnetic waves with wavelengths of 1–10 mm,which have characteristics of high frequency and short wavelength.They have gradually and widely been used in engineering and medical fields.We have identified studies related to millimeter waves in the biomedical field and summarized the biological effects of millimeter waves and their current status in medical applications.Finally,the shortcomings of existing studies and future developments were analyzed and discussed,with the aim of providing a reference for further research and development of millimeter waves in the medical field. 展开更多
关键词 Millimeter wave Biological effects medical applications Vital signs monitoring
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Applications of medical nanoparticles
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《Chinese Journal of Biomedical Engineering(English Edition)》 2001年第4期157-158,共2页
关键词 applications of medical NANOPARTICLES GENE
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Application of Knitted Fabrics in Technical and Medical Textiles
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作者 Károly LáZáR 《China Textile》 2010年第10期28-33,共6页
Knitted fabrics and knitting technology play very important role on the fields of technical and medical textiles and their importance is ever greater. Experts estimate that their annual consumption is increasing by 3,... Knitted fabrics and knitting technology play very important role on the fields of technical and medical textiles and their importance is ever greater. Experts estimate that their annual consumption is increasing by 3,8 % in average and it can reach about 24 million tons in 2010. Within this the consumption of each sector is increasing. Roughly one third of the world’s fibre consumption is used for production of technical textiles.The term "technical textiles" covers many fields of application that are mirrored in the terminology of Techtextil which is very much used generally when grouping these products. Techtextil differentiates 11 groups and knitted fabrics and products made by knitting technologies can be found in each of them.The lecture introduces such applications on many examples. We think that use of knitting technologies in the development of technical and medical textiles can help this sector to survive this difficult period of the European textile industry. 展开更多
关键词 application of Knitted Fabrics in Technical and medical Textiles
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Clinical observation on the effect of warming meridian medicinal wine,polarized light external application combined with acupuncture and moxibustion on pain after vertebroplasty
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作者 WEN Zhigang LU Shuai CHENG Xiumei 《Journal of Traditional Chinese Medicine》 2025年第3期660-666,共7页
OBJECTIVE:To evaluate the effects of external application of warm meridian medicated wine and polarized light therapy combined with acupuncture on pain management following vertebroplasty. METHODS:A total of 120 patie... OBJECTIVE:To evaluate the effects of external application of warm meridian medicated wine and polarized light therapy combined with acupuncture on pain management following vertebroplasty. METHODS:A total of 120 patients with osteoporotic vertebral compression fractures treated by vertebroplasty at our hospital were divided into four groups. The control group received non-steroidal anti-inflammatory drugs, the Treatment Group Ⅰ received acupuncture alone, Treatment Group Ⅱ was treated with medicated wine for warming meridians alongside polarized light physiotherapy, and Treatment Group Ⅲ received a combination of medicated wine for warming meridians, polarized light therapy, and acupuncture. The clinical efficacy, pain thresholds at various time points, temperature pain threshold, electric pain threshold, quality of life, sleep quality index, lumbar dysfunction index, visual analog scale(VAS) scores, and incidence of adverse reactions were compared and analyzed across the four groups. RESULTS:The total clinical effective rate in Treatment Group Ⅲ was significantly higher than that in the control group, Treatment Group Ⅰ, and Treatment Group Ⅱ(P < 0.05). At 24 and 72 h post-treatment, the VAS scores, temperature pain thresholds, and electric pain thresholds in Treatment Group Ⅲ were significantly lower than those in the control group, Treatment Group Ⅰ, and Treatment Group Ⅱ(P < 0.05). Additionally, quality-of-life scores in Treatment Group Ⅲ were markedly higher compared to the control group, Treatment Group Ⅰ, and Treatment Group Ⅱ, while the Pittsburgh Sleep Quality Index scores, Oswestry Disability Index scores, and incidence of adverse reactions in Treatment Group Ⅲ were significantly lower than in the other groups(P < 0.05). CONCLUSION:The external application of warm meridian medicated wine and polarized light therapy combined with acupuncture significantly reduces postoperative pain following vertebroplasty, enhances lumbar function, and improves both sleep quality and overall quality of life for patients. This approach is recommended for clinical application. 展开更多
关键词 PAIN postoperative VERTEBROPLASTY acupuncture polarized light therapy external application of warm meridian medicated wine
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Deep Learning for Image Segmentation: A Focus on Medical Imaging 被引量:2
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作者 Ali F.Khalifa Eman Badr 《Computers, Materials & Continua》 SCIE EI 2023年第4期1995-2024,共30页
Image segmentation is crucial for various research areas. Manycomputer vision applications depend on segmenting images to understandthe scene, such as autonomous driving, surveillance systems, robotics, andmedical ima... Image segmentation is crucial for various research areas. Manycomputer vision applications depend on segmenting images to understandthe scene, such as autonomous driving, surveillance systems, robotics, andmedical imaging. With the recent advances in deep learning (DL) and itsconfounding results in image segmentation, more attention has been drawnto its use in medical image segmentation. This article introduces a surveyof the state-of-the-art deep convolution neural network (CNN) models andmechanisms utilized in image segmentation. First, segmentation models arecategorized based on their model architecture and primary working principle.Then, CNN categories are described, and various models are discussed withineach category. Compared with other existing surveys, several applicationswith multiple architectural adaptations are discussed within each category.A comparative summary is included to give the reader insights into utilizedarchitectures in different applications and datasets. This study focuses onmedical image segmentation applications, where the most widely used architecturesare illustrated, and other promising models are suggested that haveproven their success in different domains. Finally, the present work discussescurrent limitations and solutions along with future trends in the field. 展开更多
关键词 Deep learning medical imaging convolution neural network image segmentation medical applications survey
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A Review of Knowledge Graph in Traditional Chinese Medicine:Analysis,Construction,Application and Prospects 被引量:1
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作者 Xiaolong Qu Ziwei Tian +3 位作者 Jinman Cui Ruowei Li Dongmei Li Xiaoping Zhang 《Computers, Materials & Continua》 SCIE EI 2024年第12期3583-3616,共34页
As an advanced data science technology,the knowledge graph systematically integrates and displays the knowledge framework within the field of traditional Chinese medicine(TCM).This not only contributes to a deeper com... As an advanced data science technology,the knowledge graph systematically integrates and displays the knowledge framework within the field of traditional Chinese medicine(TCM).This not only contributes to a deeper comprehension of traditional Chinese medical theories but also provides robust support for the intelligent decision systems and medical applications of TCM.Against this backdrop,this paper aims to systematically review the current status and development trends of TCM knowledge graphs,offering theoretical and technical foundations to facilitate the inheritance,innovation,and integrated development of TCM.Firstly,we introduce the relevant concepts and research status of TCM knowledge graphs.Secondly,we conduct an in-depth analysis of the challenges and trends faced by key technologies in TCM knowledge graph construction,such as knowledge representation,extraction,fusion,and reasoning,and classifies typical knowledge graphs in various subfields of TCM.Next,we comprehensively outline the current medical applications of TCM knowledge graphs in areas such as information retrieval,diagnosis,question answering,recommendation,and knowledge mining.Finally,the current research status and future directions of TCM knowledge graphs are concluded and discussed.We believe this paper contributes to a deeper understanding of the research dynamics in TCM knowledge graphs and provides essential references for scholars in related fields. 展开更多
关键词 Systematic review traditional Chinese medicine knowledge graph deep learning medical applications
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An Application Review of Artificial Intelligence in Prevention and Cure of COVID-19 Pandemic 被引量:1
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作者 Peipeng Yu Zhihua Xia +1 位作者 Jianwei Fei Sunil Kumar Jha 《Computers, Materials & Continua》 SCIE EI 2020年第10期743-760,共18页
Coronaviruses are a well-known family of viruses that can infect humans or animals.Recently,the new coronavirus(COVID-19)has spread worldwide.All countries in the world are working hard to control the coronavirus dise... Coronaviruses are a well-known family of viruses that can infect humans or animals.Recently,the new coronavirus(COVID-19)has spread worldwide.All countries in the world are working hard to control the coronavirus disease.However,many countries are faced with a lack of medical equipment and an insufficient number of medical personnel because of the limitations of the medical system,which leads to the mass spread of diseases.As a powerful tool,artificial intelligence(AI)has been successfully applied to solve various complex problems ranging from big data analysis to computer vision.In the process of epidemic control,many algorithms are proposed to solve problems in various fields of medical treatment,which is able to reduce the workload of the medical system.Due to excellent learning ability,AI has played an important role in drug development,epidemic forecast,and clinical diagnosis.This research provides a comprehensive overview of relevant research on AI during the outbreak and helps to develop new and more powerful methods to deal with the current pandemic. 展开更多
关键词 Artificial intelligence COVID-19 medical applications clinical diagnosis
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A Collaborative Medical Diagnosis System Without Sharing Patient Data 被引量:1
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作者 NAN Yucen FANG Minghao +2 位作者 ZOU Xiaojing DOU Yutao Albert Y.ZOMAYA 《ZTE Communications》 2022年第3期3-16,共14页
As more medical data become digitalized,machine learning is regarded as a promising tool for constructing medical decision support systems.Even with vast medical data volumes,machine learning is still not fully exploi... As more medical data become digitalized,machine learning is regarded as a promising tool for constructing medical decision support systems.Even with vast medical data volumes,machine learning is still not fully exploiting its potential because the data usually sits in data silos,and privacy and security regulations restrict their access and use.To address these issues,we built a secured and explainable machine learning framework,called explainable federated XGBoost(EXPERTS),which can share valuable information among different medical institutions to improve the learning results without sharing the patients’ data.It also reveals how the machine makes a decision through eigenvalues to offer a more insightful answer to medical professionals.To study the performance,we evaluate our approach by real-world datasets,and our approach outperforms the benchmark algorithms under both federated learning and non-federated learning frameworks. 展开更多
关键词 explainable machine learning federated learning secured data analysis medical applications
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On Soft Pre-Rough Approximation Space with Applications in Decision Making
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作者 M.El Sayed Wadia Faid Hassan Al-shameri M.A.El Safty 《Computer Modeling in Engineering & Sciences》 SCIE EI 2022年第9期865-879,共15页
A soft,rough set model is a distinctive mathematical model that can be used to relate a variety of real-life data.In the present work,we introduce new concepts of rough set based on soft pre-lower and soft pre-upper a... A soft,rough set model is a distinctive mathematical model that can be used to relate a variety of real-life data.In the present work,we introduce new concepts of rough set based on soft pre-lower and soft pre-upper approximation space.These concepts are soft pre-rough equality,soft pre-rough inclusion,soft pre-rough belonging,soft predefinability,soft pre-internal lower,and soft pre-external lower.We study the properties of these concepts.Finally,we use the soft pre-rough approximation to illustrate the importance of our method in decision-making for Chikungunya medical illnesses.In reality,the impact factors of Chikungunya’s medical infection were determined.Moreover,we develop two new algorithms to address Chikungunya virus issues.Our proposed approach is sensible and effective. 展开更多
关键词 Soft rough set soft pre-rough set approach soft pre-internal lower and soft pre-external upper soft nowhere dense set and Chikungunya medical application intelligence discovery
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Ultra-Wideband Systems with Energy Harvesting Units for Sensors, 5G, IoT and Medical Systems
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作者 Albert Sabban 《Journal of Sensor Technology》 2021年第1期1-17,共17页
The high tech industrial revolution in the last fifty years depleted and ruined the planet natural resources. Energy harvesting is the main challenge in the research in green technologies. Compact wideband efficient a... The high tech industrial revolution in the last fifty years depleted and ruined the planet natural resources. Energy harvesting is the main challenge in the research in green technologies. Compact wideband efficient antennas are crucial for energy harvesting portable sensors and systems. Small antennas have low efficiency. The efficiency of 5G, IoT communication and energy harvesting systems may be improved by using wideband efficient passive and active antennas. The system dynamic range may be improved by connecting amplifiers to the small antenna feed line. Ultra-wideband portable harvesting systems are presented in this paper. This paper presents new Ultra-Wideband energy harvesting system and antennas in frequencies ranging from 0.15 GHz to 18 GHz. Three wideband antennas cover the frequency range from 0.15 GHz to 18 GHz. A wideband metamaterial antenna with metallic strips covers the frequency range from 0.15 GHz to 0.42 GHz. The antenna bandwidth is around 75% for VSWR better than 2.3:1. A wideband slot antenna covers the frequency range from 0.4 GHz to 6.4 GHz. A wideband fractal notch antenna covers the frequency range from 6 GHz to 18 GHz. Printed passive and active notch and slot antennas are compact, low cost and have low volume. The active antennas may be employed in energy harvesting portable systems. The antennas and the harvesting system components may be assembled on the same, printed board. The printed notch and slot antennas bandwidth are from 75% to 100% for VSWR better than 3:1. The slot and notch antenna gain is around 3 dBi with efficiency higher than 90%. The antennas electrical parameters were computed in free space and near the human body. There is a good agreement between computed and measured results. 展开更多
关键词 Wearable Sensors medical applications Active Systems medical and Sport Sensors
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