检索结果-内蒙古大学图书馆

4th International Conference on Electronics, biomedical engineering, and Health Informatics, ICEBEHI 2023

作者： Katherine Putra, Alfian Pramudita Kurniawan, Angeline Shane Istiqomah, Dezy Zahrotul Sholihah, Nisa’ul Al-Salehi, Khalid Ali Salem Ain, Khusnul Sapuan, Imam Andarini, Esti Biomedical Engineering Master Program Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya60115 Indonesia Biomedical Engineering Study program Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia School of Nursing Southern Medical University Guangdong Guangzhou510515 China

ISBN: (纸本)9789819714629

The motor impairments that stroke patients experience as a primary contributor to death and disability also impact their quality of life. Due to its characteristics as complex muscle signals, the Electromyograph (EMG) signal may be one of the markers in rehabilitation and a substitute that may be used to judge the success of rehabilitation. This study aims to analyze the complexity of EMG signals originating from the flexion of the flexor carpi radialis muscle with various weights indicating the rehabilitation state. It is important to monitor the progress of rehabilitation, and it can be done by using complexity analysis. The complexity of the EMG is examined in this work utilizing entropy measurement, namely Approximate Entropy (ApEn), Sample Entropy (SampEn), and Fuzzy Approximate Entropy (fApEn). We concentrated on the flexor carpi radialis muscle using flexion–extension exercises and varying the weight load. This study’s results indicate differences in the complexity of the EMG signal in the flexor carpi radialis when performing flexion–extension movements. Three differences showed a correlation based on the value of ApEN, SampEn, and fApEn. Complexity Analysis using fApEn showed the best correlation at R = 0.9966, which can be used to evaluate the rehabilitation process. The increase in weight was followed by the increase of the fApEn value, indicating that the value can be used to evaluate the rehabilitation process. The use of complexity analysis of EMG signal from flexion movement in flexor carpi radialis with various weights can be used to indicate the progress in the rehabilitation process. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Entropy

来源：评论

学校读者我要写书评

暂无评论

In Vitro Degradation of Polydioxanone (PDO) Lifting Threads in Microfocused Ultrasound

In Vitro Degradation of Polydioxanone (PDO) Lifting Threads ...

引用

2024 Global Medical engineering Physics Exchanges/Pan American Health Care Exchanges, GMEPE/PAHCE 2024

作者： Silva, M.H.R. Raybolt, A. Pereira, W.C.A. Federal University of Rio de Janeiro Biomedical Engineering Program - Coppe RJ Brazil Federal University of Rio de Janeiro School of Dentistry RJ Brazil

ISBN: (纸本)9798350390490

Objective: Analyze the static degradation time of polydioxanone (PDO) threads with or without the association of microfocused ultrasound, which are techniques for aesthetic purposes. Materials and Methods: In vitro assays were conducted in isotonic solution using smooth polydioxanone (PDO) threads divided into 2 groups (n=3): FPL (Smooth Polydioxanone Thread) and FPLU (Smooth Polydioxanone Thread with Ultrasound). The FPLU group underwent microfocused ultrasound. Both groups endured the following analyses: UV spectroscopy Absorbance and Scanning Electron Microscopy (SEM). Results: Absorbance by UV spectroscopy: The concentration levels of molecules in the aliquots showed that at 8 days both FPL and FPLU groups exhibited absorbance levels of 0.0040 (mol-1/***-1) and 0.00585 (mol-1/***-1), respectively. At 30 days, these levels were 0.0799 (mol-1/***-1) and 0.0543 (mol-1/***-1). At 60 days, the FPLU group showed significant increase to 0.2039 (mol-1/***-1) compared to the FPL group at 0.1152 (mol-1/***-1) reaching a degradation peaks at 60 days. At 90 days, the FPL group presented 0.1299 (mol-1/***-1) and the FPLU group presented 0.2377 (mol-1/***-1). SEM: Morphological differences were observed in both groups. Conclusion: FPLU group showed higher absorbance over time. Microfocused ultrasound accelerated degradation time PDO threads, diminishing its functionality. © 2024 IEEE.

关键词： Ultrasonics

来源：评论

学校读者我要写书评

暂无评论

Cidade Inteligente: análise da evolução dos indicadores de uma Cidade Universitária da região norte a partir da ISO 37122:2020 15

Cidade Inteligente: análise da evolução dos indicadores d...

引用

15th IEEE International Conference on Industry Applications, INDUSCON 2023

作者： Santos, Lucas Henrique Brito de Sousa Silva, Kaylane Lobato, Elen Priscila dos Santos, Jhennifer Freitas Manito, Allan R.A. da Silva Fonseca, Wellington de Oliveira e Silva, Marcelo Faculty of Electrical and Biomedical Engineering Federal University of Pará Belém Brazil Electrical Engineering Graduate Program Federal University of Pará Belém Brazil Mechanical Engineering Graduate Program Federal University of Pará Belém Brazil

来源：评论

学校读者我要写书评

暂无评论

Monitoring industrial systems using ESP-NOW protocol with Mesh and Ad Hoc network 15

Monitoring industrial systems using ESP-NOW protocol with Me...

引用

15th IEEE International Conference on Industry Applications, INDUSCON 2023

作者： Santos, Lucas Henrique Brito da Silva, Eduardo José Monteiro de Oliveira Farias, Aleqssandro Alexandre dos Santos, Jhennifer Freitas Morais, Iago Ranieri Miranda Rodrigues da Silva Fonseca, Wellington de Oliveira e Silva, Marcelo Faculty of Electrical and Biomedical Engineering Federal University of Pará Belém Brazil Electrical Engineering Graduate Program Federal University of Pará Belém Brazil Mechanical Engineering Graduate Program Federal University of Pará Belém Brazil

ISBN: (纸本)9798350314182

Nowadays, industrial processes are creating increasing demands for optimized and efficient sensing systems and require high reliability and a short time interval for information delivery. This paper presents an embedded sensor system that uses the ESP-NOW protocol with a Mesh and Ad Hoc network, in order to provide an auto mesh configuration upon failure at some point in the network. This system was implemented to monitor the variables of an induction motor, after which, before sending the data to the cloud, local processing is performed to reduce the volume of data. Finally, a computer simulation of the WROOM-32 module is performed for a thermal analysis during its operation, where the heating points of the plate are identified and analyzed, in order to validate that the system, even processing a large amount of data, maintains a high reliability during its operation. ©2023 IEEE.

关键词： ad hoc espnow mesh simulation thermal

来源：评论

学校读者我要写书评

暂无评论

GeoRefineNet: A Multistage Framework for Enhanced Cephalometric Landmark Detection in CBCT Images Using 3D Geometric Information 17th

GeoRefineNet: A Multistage Framework for Enhanced Cephalome...

引用

17th Asian Conference on Computer Vision, ACCV 2024

作者： Viriyasaranon, Thanaporn Ma, Serie Choi, Jang-Hwan Department of Computational Medicine Graduate Program in System Health Science and Engineering Ewha Womans University Seoul Korea Republic of Division of Mechanical and Biomedical Engineering Graduate Program in System Health Science and Engineering Ewha Womans University Seoul Korea Republic of Department of Artificial Intelligence Ewha Womans University Seoul Korea Republic of

ISBN: (纸本)9789819609000

The precise detection of cephalometric landmarks on two-dimensional (2D) radiographs or three-dimensional (3D) computed tomography (CT) images is a fundamental step in various medical fields, especially in research on orthodontics and maxillofacial surgery. Deep learning-based detectors have demonstrated remarkable accuracy in 2D cephalometric analysis, whereas conventional single-view approaches are limited by their reliance on information from a single perspective. This study proposes GeoRefineNet, a novel multistage framework that leverages information from multiple CT scans acquired at various angles. By incorporating geometric knowledge through a 3D heatmap reconstruction process, GeoRefineNet improves robustness, accuracy, and adaptability to various cephalometric configurations. The proposed framework predicts 3D landmark positions on CT images, effectively addressing challenges associated with high-dimensional input data and limited training examples. GeoRefineNet surpasses the existing state-of-the-art models in the 2D and 3D domains, as demonstrated by its superior performance on numerical and clinical datasets. These findings indicate that GeoRefineNet offers a promising avenue for improving the accuracy and reliability of cephalometric landmark detection fostering further advances in clinical diagnosis and treatment planning. Our code is available at https://***/Thanaporn09/***. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Computerized tomography

来源：评论

学校读者我要写书评

暂无评论

Mathematical Modeling and Characterization of a Wearable Soft Robotic Device for Muscle Mechanotherapy 46

Mathematical Modeling and Characterization of a Wearable Sof...

引用

46th Annual International Conference of the IEEE engineering in Medicine and Biology Society, EMBC 2024

作者： Ticllacuri, Victor Mio, Renato Biomedical Engineering Program PUCP-UPCH Lima Peru Pontificia Universidad Catolica del Peru Laboratory of Biomechanics and Applied Robotics Lima Peru Universidad Peruana Cayetano Heredia Laboratory of Biomedical Engineering Lima Peru University of Bayreuth Digital Health with a Focus on Data Science Germany

ISBN: (纸本)9798350371499

Treatments of disuse-induced muscle atrophy entail unmet clinical needs due to the lack of medical devices capable of mimicking physicians manual therapies. Therefore, in this paper we develop and model a wearable soft pneumatic elastomeric actuator to perform deep cyclic compression stimuli on human soft tissues for muscle rehabilitation by mechanotherapy. Static and dynamic characterization of the prototype demonstrate a 2.5 mm active deformation at 100 kPa with 600 mm3/s and a 5 Hz bandwidth. We estimate the transfer function of the experimentally acquired pressure, flow and deformation signals, processed by a Gaussian kernel-based approach. Our mathematical model accurately describes the actuator behavior and enables to extract its mechanical parameters. Then, through computational simulations, we illustrate its efficacy in emulating multiple complex bio-inspired movements. Our proposed methodology aims to improve the control efficiency in wearable soft robotics for muscle atrophy treatment. © 2024 IEEE.

关键词： Pneumatic actuators

来源：评论

学校读者我要写书评

暂无评论

Development of a Smart Guidewire for Intravascular Sensing 9th

Development of a Smart Guidewire for Intravascular Sensing

引用

9th International Conference on the Development of biomedical engineering in Vietnam, BME 2022

作者： Dong, Chao-Wei Joo, Dong-Hyun Moon, Ki-Jeong Yoon, Se-Yeon Nguyen, Hua Quang Huy Park, Woo-Tae Department of Mechanical Engineering Seoul National University of Science and Technology Seoul01811 Korea Republic of Convergence Program of Biomedical Engineering and Biomaterials Seoul National University of Science and Technology Seoul01811 Korea Republic of

ISBN: (纸本)9783031446290

This study presents a smart guidewire developed to measure the pressure inside blood vessels during minimally invasive surgery. The use of pressure sensor guidewires enables the medical doctor to make a judgement of the stent insertion procedure by precisely measuring coronary pressure. A pressure sensor is embedded inside the guidewire to measure the coronary lesion's vascular pressure to determine the clogging's severity. Pressure sensors inside the guidewires require high sensitivity, good linearity, and huge size reduction. The pressure sensor needs to be packaged inside a 350 µm diameter catheter. Size constraints and mechanical reliability requirements are extremely high. We describe the design and manufacture of the micro-scaled pressure sensor and the packaging process of the guidewire. To improve sensor sensitivity and reduce nonlinearity, we employed a finite element analysis to optimize the design for the membrane. The sensor fabrication process employs a cavity-first process for ultrathin sensor design. Additionally, we built a measurement system that records the sensor signal in air pressure. The results showed that the air pressure ranged up to 7.2 psi. We developed a systematic setup for assembling the ultraminiature pressure sensor inside the 800 µm guidewire. The packaging procedure includes the preparation of the electric wires, sensor placement, sensor to wire alignment, soldering, and finally, wired sensor placement inside the medical tubing. © The Author(s), under exclusive license to Springer Nature Switzerland AG. 2024.

关键词： Pressure sensors

来源：评论

学校读者我要写书评

暂无评论

Fabricating 3-dimensional human brown adipose microtissues for transplantation studies

引用

Bioactive Materials 2023年第4期22卷 518-534页

作者： Ou Wang Li Han Haishuang Lin Mingmei Tian Shuyang Zhang Bin Duan Soonkyu Chung Chi Zhang Xiaojun Lian Yong Wang Yuguo Lei Department of Chemical and Biomolecular Engineering University of Nebraska-LincolnNEUSA Biomedical Engineering Program University of Nebraska-LincolnNEUSA Department of Biomedical Engineering Pennsylvania State UniversityPAUSA China Novartis Institutes for BioMedical Research Co. Ltd.BeijingChina Department of Chemistry University of Nebraska-LincolnNEUSA Mary&Dick Holland Regenerative Medicine Program and Division of Cardiology Department of Internal MedicineUniversity of Nebraska Medical CenterOmahaNEUSA Department of Nutrition University of MassachusettsAmherstMAUSA School of Biological Science University of Nebraska-LincolnNEUSA Huck Institutes of the Life Sciences Pennsylvania State UniversityPAUSA

Transplanting cell cultured brown adipocytes(BAs)represents a promising approach to prevent and treat obesity(OB)and its associated metabolic disorders,including type 2 diabetes mellitus(T2DM).However,transplanted BAs have a very low survival rate in *** enzymatic dissociation during the harvest of fully differentiated BAs also loses significant *** is a critical need for novel methods that can avoid cell death during cell preparation,transplantation,and in ***,we reported that preparing BAs as injectable microtissues could overcome the *** found that 3D culture promoted BA differentiation and UCP-1 expression,and the optimal initial cell aggregate size was 100μ*** microtissues could be produced at large scales via 3D suspension assisted with a PEG hydrogel and could be *** microtissues could survive in vivo for long *** alleviated body weight and fat gain and improved glucose tolerance and insulin sensitivity in high-fat diet(HFD)-induced OB and T2DM *** microtissues impacted multiple organs,secreted protein factors,and influenced the secretion of endogenous *** our best knowledge,this is the first report on fabricating human BA microtissues and showing their safety and efficacy in T2DM *** proposal of transplanting fabricated BA microtissues,the microtissue fabrication method,and the demonstration of efficacy in T2DM mice are all *** results show that engineered 3D human BA microtissues have considerable advantages in product scalability,storage,purity,safety,dosage,survival,and efficacy.

关键词： Brown adipocyte Microtissue Transplantation Obesity Type 2 diabetes

来源：评论

学校读者我要写书评

暂无评论

Typical Values in Digital Mammography Within the Framework of Diagnostic Reference Levels 9th

Typical Values in Digital Mammography Within the Framework o...

引用

9th Latin American Congress on biomedical engineering, CLAIB 2022 and 28th Brazilian Congress on biomedical engineering, CBEB 2022

作者： Real, J.V. Malthez, A.L.M.C. Graduate Program in Biomedical Engineering Federal University of Technology - Paraná Curitiba Brazil Clinical Hospital Complex of the Federal University of Paraná/Diagnostic Imaging Unit Curitiba Brazil

ISBN: (纸本)9783031494093

In the context of diagnostic reference levels (DRLs), typical values of mean glandular dose were established from a survey of mammographic examinations performed in a university hospital in Curitiba, Paraná, Brazil. This study represents an initial approach to the implementation of DRLs at the specific medical institution, as a means to improve the activities related to the radiological protection of patients managed by the Diagnostic Imaging Unit. © 2024, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Medical imaging

来源：评论

学校读者我要写书评

暂无评论

Targeting glial metabolism in neurodegenerative diseases:detail matters

引用

Neural Regeneration Research 2023年第11期18卷 2393-2394页

作者： Ruqayya Afridi Kyoungho Suk Department of Pharmacology School of MedicineKyungpook National UniversityDaeguSouth Korea Department of Biomedical Sciences BK21 PLUS KNU Biomedical Convergence ProgramSchool of MedicineKyungpook National UniversityDaeguSouth Korea Brain Science and Engineering Institute Kyungpook National UniversityDaeguSouth Korea

Neurodegenerative diseases,a group of disorders associated with advanced age,are typified by the disease-specific accumulation of mutant proteins and *** decades,treatment modalities for these disorders have focused on addressing neuronal malfu nction,which has resulted in the failure of *** studies have identified the crucial role of glial cells in exacerbating neurodegenerative processes via the release of neuroinflammatory ***,the major immune component of the central nervous system (CNS),undergo numerous phenotypic transitions and regulate the outcomes of various pathologies (Afridi et al.,2022).

关键词： degenerative metabolism diseases

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：