keyword
https://read.qxmd.com/read/37711647/small-wind-turbines-and-their-potential-for-internet-of-things-applications
#21
REVIEW
Hao Wang, Bendong Xiong, Zutao Zhang, Hexiang Zhang, Ali Azam
Wind energy is crucial for meeting climate and energy sustainability targets. Small wind turbines (SWTs) have gained significant attention due to their size and adaptability. These turbines have potential for Internet of Things (IoT) applications, particularly in powering large areas and low-power devices. This review examines SWTs for IoT applications, providing an extensive overview of their development, including wind energy rectifiers, power generation mechanisms, and IoT applications. The paper summarizes and compares different types of wind energy rectifiers, explores recent advancements and representative work, and discusses applicable generator systems such as electromagnetic, piezoelectric, and triboelectric nanogenerators...
September 15, 2023: IScience
https://read.qxmd.com/read/37687886/cross-component-transferable-transformer-pipeline-obeying-dynamic-seesaw-for-rotating-machinery-with-imbalanced-data
#22
JOURNAL ARTICLE
Binbin Xu, Boquan Ma, Zheng Yang, Fei Chen, Xiaobing Li
Due to the lack of fault data in the daily work of rotating machinery components, existing data-driven fault diagnosis procedures cannot accurately diagnose fault classes and are difficult to apply to most components. At the same time, the complex and variable working conditions of components pose a challenge to the feature extraction capability of the models. Therefore, a transferable pipeline is constructed to solve the fault diagnosis of multiple components in the presence of imbalanced data. Firstly, synchrosqueezed wavelet transforms (SWT) are improved to highlight the time-frequency feature of the signal and reduce the time-frequency differences between different signals...
August 25, 2023: Sensors
https://read.qxmd.com/read/37671381/comparison-of-shock-wave-therapy-and-corticosteroid-injection-in-the-treatment-of-greater-trochanteric-pain-syndrome-a-single-blind-randomized-study
#23
JOURNAL ARTICLE
Hanife Çağlar Yağcı, İlker Yağcı, Fatih Bağcıer
OBJECTIVES: The aim of this study was to compare the efficacy of the corticosteroid (CS) injection and shock wave therapy (SWT) in the treatment of greater trochanteric pain syndrome (GTPS). PATIENTS AND METHODS: Between 2020 September and 2021 October, a total of 60 patients with GTPS (12 males, 48 females; mean age: 50.8±8.5 years; range, 34 to 65 years) were included. The patients were randomly assigned to two groups as the SWT group (n=32) receiving one session of SWT per week for a total of three weeks and CS injection group (n=28) receiving CS and local anesthetic...
June 2023: Turkish journal of physical medicine and rehabilitation
https://read.qxmd.com/read/37612075/fatigue-life-prediction-considering-variability-for-additively-manufactured-pure-titanium-clasps
#24
JOURNAL ARTICLE
Kento Odaka, Shota Kamiyama, Naoki Takano, Yoshihiko Uematsu, Satoru Matsunaga
PURPOSE: This study aims to develop a numerical prediction method for the average and standard deviation values of the largely varied fatigue life of additively manufactured commercially pure titanium (CPTi grade 2) clasps. Accordingly, the proposed method is validated by applying it to clasps of different shapes. METHODS: The Smith-Watson-Topper (SWT) equation and finite element analysis (FEA) were used to predict the average fatigue life. The variability was expressed by a 95% reliability range envelope based on the experimentally determined standard deviation...
August 24, 2023: Journal of Prosthodontic Research
https://read.qxmd.com/read/37582746/thetha-nami-ngithethe-nawe-let-s-talk-a-stepped-wedge-cluster-randomised-trial-of-social-mobilisation-by-peer-navigators-into-community-based-sexual-health-and-hiv-care-including-pre-exposure-prophylaxis-prep-to-reduce-sexually-transmissible-hiv-amongst-young
#25
RANDOMIZED CONTROLLED TRIAL
Jacob Busang, Thembelihle Zuma, Carina Herbst, Nonhlanhla Okesola, Natsayi Chimbindi, Jaco Dreyer, Nelisiwe Mtshali, Theresa Smit, Samkelisiwe Ngubane, Siphesihle Hlongwane, Dumsani Gumede, Ashley Jalazi, Simphiweyenkosi Mdluli, Kristien Bird, Sithembile Msane, Priscilla Danisa, Willem Hanekom, Limakatso Lebina, Ngundu Behuhuma, Cheryl Hendrickson, Jacqui Miot, Janet Seeley, Guy Harling, Jana Jarolimova, Lorraine Sherr, Andrew Copas, Kathy Baisley, Maryam Shahmanesh
BACKGROUND: Antiretroviral therapy (ART) through universal test and treat (UTT) and HIV pre-exposure prophylaxis (PrEP) substantially reduces HIV-related mortality and incidence. Effective ART based prevention has not translated into population-level impact in southern Africa due to sub-optimal coverage among youth. We aim to investigate the effectiveness, implementation and cost effectiveness of peer-led social mobilisation into decentralised integrated HIV and sexual reproductive health (SRH) services amongst adolescents and young adults in KwaZulu-Natal (KZN)...
August 15, 2023: BMC Public Health
https://read.qxmd.com/read/37568525/cold-plasma-therapy-in-chronic-wounds-a-multicenter-randomized-controlled-clinical-trial-plasma-on-chronic-wounds-for-epidermal-regeneration-study-preliminary-results
#26
JOURNAL ARTICLE
Nessr Abu Rached, Susanne Kley, Martin Storck, Thomas Meyer, Markus Stücker
Chronic wounds (CWs) pose a significant health challenge in clinical practice. Standard wound therapy (SWT) is currently considered the gold standard. However, recent evidence suggests that cold plasma therapy (CPT) holds promise for improving CWs. In light of this, the POWER study was conducted as a multicenter, randomized clinical trial to investigate the effect of large-area plasma application compared with SWT in patients with chronic, non-healing arterial or venous wounds on the lower leg. To analyze the interim results, we employed a comprehensive range of statistical tests, including both parametric and non-parametric methods, as well as GLS model regression and an ordinal mixed model...
August 4, 2023: Journal of Clinical Medicine
https://read.qxmd.com/read/37510866/investigation-of-factors-affecting-shuttle-walking-performance-at-increased-speed-for-patients-with-chronic-obstructive-pulmonary-disease
#27
JOURNAL ARTICLE
Rukiye Çiftçi, Ahmet Kurtoğlu, Özgür Eken, Dilber Durmaz, Serdar Eler, Nebahat Eler, Monira I Aldhahi
The aim of this study was to examine the factors affecting the shuttle walking test (SWT) in patients with chronic obstructive pulmonary disease (COPD). A total of 29 patients with COPD (the COPD group) and a healthy group (HG) of 34 women aged between 55 and 74 years were included in the study. After the pulmonary function profiles of the participants were assessed, and the SWT was performed. Walking distances, walking speeds, and SWT levels (SWT-L) were determined with the SWT. Before and after the SWT, the heart rate (HR), oxygen saturation level (SPO2 ), and Borg scale (perceived exertion (BSe) and dyspnea (BSd)) results were analyzed with a paired sample t -test...
July 18, 2023: Journal of Clinical Medicine
https://read.qxmd.com/read/37484264/a-comparative-examination-of-the-aerodynamic-performance-of-various-seashell-shaped-wind-turbines
#28
JOURNAL ARTICLE
Hossam Hamid, Rafea Mohamed Abd El Maksoud
The seashell-shaped wind turbine (spiral wind turbine SWT), a brand-new form of the horizontal axis wind turbine, is intended for metropolitan use. SWTs have the additional advantage of being installed anywhere without considering their surroundings, as they do not need to be located facing the wind direction. The present work introduces various designs of the rotor of the seashell wind turbine to achieve the greatest performance. Two types of turbine spiral profiles (logarithmic and Archimedean) are investigated with changing the turbine opening angle ( θ )...
June 2023: Heliyon
https://read.qxmd.com/read/37420527/a-novel-steganography-method-for-infrared-image-based-on-smooth-wavelet-transform-and-convolutional-neural-network
#29
JOURNAL ARTICLE
Yu Bai, Li Li, Jianfeng Lu, Shanqing Zhang, Ning Chu
Infrared images have been widely used in many research areas, such as target detection and scene monitoring. Therefore, the copyright protection of infrared images is very important. In order to accomplish the goal of image-copyright protection, a large number of image-steganography algorithms have been studied in the last two decades. Most of the existing image-steganography algorithms hide information based on the prediction error of pixels. Consequently, reducing the prediction error of pixels is very important for steganography algorithms...
June 6, 2023: Sensors
https://read.qxmd.com/read/37410528/smartwatch-based-maximum-oxygen-consumption-measurement-for-predicting-acute-mountain-sickness-diagnostic-accuracy-evaluation-study
#30
JOURNAL ARTICLE
Xiaowei Ye, Mengjia Sun, Shiyong Yu, Jie Yang, Zhen Liu, Hailin Lv, Boji Wu, Jingyu He, Xuhong Wang, Lan Huang
BACKGROUND: Cardiorespiratory fitness plays an important role in coping with hypoxic stress at high altitudes. However, the association of cardiorespiratory fitness with the development of acute mountain sickness (AMS) has not yet been evaluated. Wearable technology devices provide a feasible assessment of cardiorespiratory fitness, which is quantifiable as maximum oxygen consumption (VO2 max) and may contribute to AMS prediction. OBJECTIVE: We aimed to determine the validity of VO2 max estimated by the smartwatch test (SWT), which can be self-administered, in order to overcome the limitations of clinical VO2 max measurements...
July 6, 2023: JMIR MHealth and UHealth
https://read.qxmd.com/read/37342952/branch-aggregation-attention-network-for-robotic-surgical-instrument-segmentation
#31
JOURNAL ARTICLE
Wenting Shen, Yaonan Wang, Min Liu, Jiazheng Wang, Renjie Ding, Zhe Zhang, Erik Meijering
Surgical instrument segmentation is of great significance to robot-assisted surgery, but the noise caused by reflection, water mist, and motion blur during the surgery as well as the different forms of surgical instruments would greatly increase the difficulty of precise segmentation. A novel method called Branch Aggregation Attention network (BAANet) is proposed to address these challenges, which adopts a lightweight encoder and two designed modules, named Branch Balance Aggregation module (BBA) and Block Attention Fusion module (BAF), for efficient feature localization and denoising...
June 21, 2023: IEEE Transactions on Medical Imaging
https://read.qxmd.com/read/37339021/multi-view-fusion-network-based-gesture-recognition-using-semg-data
#32
JOURNAL ARTICLE
Gongfa Li, Cejing Zou, Guozhang Jiang, Du Jiang, Juntong Yun, Guojun Zhao, Yangwei Cheng
sEMG(surface electromyography) signals have been widely used in rehabilitation medicine in the past decades because of their non-invasive, convenient and informative features, especially in human action recognition, which has developed rapidly. However, the research on sparse EMG in multi-view fusion has made less progress compared to high-density EMG signals, and for the problem of how to enrich sparse EMG feature information, a method that can effectively reduce the information loss of feature signals in the channel dimension is needed...
June 20, 2023: IEEE Journal of Biomedical and Health Informatics
https://read.qxmd.com/read/37316646/translational-large-animal-model-of-coronary-microvascular-embolism-characterization-by-serial-cardiac-magnetic-resonance-and-histopathology
#33
JOURNAL ARTICLE
Dongyue Liu, Rui Lin, Bo Tao, Jianxing Hu, Liuquan Cheng, Xin Lou, Menglu Li, Sulei Li, Yan Zhu, Na Li, Yan Fang, Yabin Wang, Yuan Wang, Feng Cao
This study aimed to construct a large animal model of coronary microvascular embolism, and investigate whether it could mimic the clinical imaging phenotypes of myocardial hypoperfusion in patients with ST-segment elevation myocardial infarction (STEMI). Nine minipigs underwent percutaneous coronary embolization with microspheres, followed by cardiac magnetic resonance (CMR) on week 1, 2 and 4 post operation. Microvascular obstruction (MVO) was defined as the isolated hypointense core within the enhanced area on late gadolinium enhancement images, which evolved during a 4-week follow-up...
June 15, 2023: International Journal of Cardiovascular Imaging
https://read.qxmd.com/read/37299908/reducing-power-line-interference-from-semg-signals-based-on-synchrosqueezed-wavelet-transform
#34
JOURNAL ARTICLE
Jingcheng Chen, Yining Sun, Shaoming Sun, Zhiming Yao
Power line interference (PLI) is a major source of noise in sEMG signals. As the bandwidth of PLI overlaps with the sEMG signals, it can easily affect the interpretation of the signal. The processing methods used in the literature are mostly notch filtering and spectral interpolation. However, it is difficult for the former to reconcile the contradiction between completely filtering and avoiding signal distortion, while the latter performs poorly in the case of a time-varying PLI. To solve these, a novel synchrosqueezed-wavelet-transform (SWT)-based PLI filter is proposed...
May 29, 2023: Sensors
https://read.qxmd.com/read/37251775/genome-wide-association-mapping-of-genomic-regions-associated-with-drought-stress-tolerance-at-seedling-and-reproductive-stages-in-bread-wheat
#35
JOURNAL ARTICLE
S Srinatha Reddy, Dinesh Kumar Saini, G Mahendra Singh, Sandeep Sharma, Vinod Kumar Mishra, Arun Kumar Joshi
Understanding the genetic architecture of drought stress tolerance in bread wheat at seedling and reproductive stages is crucial for developing drought-tolerant varieties. In the present study, 192 diverse wheat genotypes, a subset from the Wheat Associated Mapping Initiative (WAMI) panel, were evaluated at the seedling stage in a hydroponics system for chlorophyll content (CL), shoot length (SLT), shoot weight (SWT), root length (RLT), and root weight (RWT) under both drought and optimum conditions. Following that, a genome-wide association study (GWAS) was carried out using the phenotypic data recorded during the hydroponics experiment as well as data available from previously conducted multi-location field trials under optimal and drought stress conditions...
2023: Frontiers in Plant Science
https://read.qxmd.com/read/37231372/how-to-prevent-cognitive-overload-in-the-walking-arithmetic-dual-task-among-patients-with-parkinson-s-disease
#36
JOURNAL ARTICLE
Ying Xu, Canru Geng, Tong Tang, Juanying Huang, Ying Hou
BACKGROUND: Participants with Parkinson's disease (PD) may experience difficulty during certain dual-task (DT) tests. Thus, it is necessary to keep the cognitive load within the limits of their ability. OBJECTIVE: To identify cognitive overload and its influence on the walking and auditory addition and subtraction (AAS, all values within the range of 0-20) DT performance of patients with PD. STUDY DESIGN: A cross-sectional observational study with convenience sampling...
May 25, 2023: BMC Neurology
https://read.qxmd.com/read/37200139/antidepressant-strategies-for-treatment-of-acute-depressive-episodes-among-veterans
#37
JOURNAL ARTICLE
Paulo R Shiroma, Paul Thuras, David M Atkinson, Eric Baltutis, Martin Bloch, Anders Westanmo
OBJECTIVE: The 2016 VA/DoD Clinical Practice Guideline for Management of Major Depressive Disorder offers consensus-based recommendations when response to the initial antidepressant medication is suboptimal; however, little is known about "real-world" pharmacological strategies used by providers treating depression in the Veterans Affairs Health Care System (VAHCS). METHODS: We extracted pharmacy and administrative records of patients diagnosed with a depressive disorder and treated at the Minneapolis VAHCS between January 1, 2010 and May 11, 2021...
May 1, 2023: Journal of Psychiatric Practice
https://read.qxmd.com/read/37180909/savonius-wind-turbine-blade-design-and-performance-evaluation-using-ann-based-virtual-clone-a-new-approach
#38
JOURNAL ARTICLE
Abdullah Al Noman, Zinat Tasneem, Sarafat Hussain Abhi, Faisal R Badal, Md Rafsanzane, Md Robiul Islam, Firoz Alam
The drag based Savonius wind turbine (SWT) has shown immense potential for renewable power generation in built-up areas under complex urban wind conditions. While a series of studies have been conducted on improving SWT's efficiency, optimal performance has yet to be achieved using traditional design approaches such as experimental and/or computational fluid dynamics methods. Recently, artificial intelligence and machine learning have been widely used in design optimization. As such, an ANN-based virtual clone can be an alternative to traditional design methods for wind turbine performance determination...
May 2023: Heliyon
https://read.qxmd.com/read/37161219/brain-image-fusion-based-tumour-detection-using-grey-level-co-occurrence-matrix-tamura-feature-extraction-with-backpropagation-network-classification
#39
JOURNAL ARTICLE
R Bhavani, K Vasanth
Most challenging task in medical image analysis is the detection of brain tumours, which can be accomplished by methodologies such as MRI, CT and PET. MRI and CT images are chosen and fused after preprocessing and SWT-based decomposition stage to increase efficiency. The fused image is obtained through ISWT. Further, its features are extracted through the GLCM-Tamura method and fed to the BPN classifier. Will employ supervised learning with a non-knowledge-based classifier for picture classification. The classifier utilized Trained databases of the tumour as benign or malignant from which the tumour region is segmented via k-means clustering...
March 7, 2023: Mathematical Biosciences and Engineering: MBE
https://read.qxmd.com/read/37152374/a-multicentre-randomized-controlled-clinical-study-of-cross-electro-nape-acupuncture-cena-for-the-treatment-of-pseudobulbar-palsy-in-patients-with-tracheotomy-intubation-for-severe-cerebral-haemorrhage
#40
JOURNAL ARTICLE
Shengnan Xu, Sihui Guo, Manchao Sun, Cheng Cui, Ke Xu, Xue He, Yanan Cui, Ziyin Gao, Zhenqi Wu, Jiaxin Xue, Yucai Ma, Jiahong Sun, Rui Zhang, Guoliang Cai, Guofeng Cai
OBJECTIVE: The objective is to evaluate the clinical efficacy of cross electro-nape-acupuncture (CENA) in the treatment of pseudobulbar palsy in patients with tracheotomy intubation for severe cerebral haemorrhage and to provide an innovative acupuncture method for the treatment of such patients. METHODS: A total of 126 patients from six trial centres who met the inclusion criteria were randomly divided into three groups according to the random number table method in the ratio of 1 : 1 : 1, with 42 patients in each group, and the three groups were divided into CENA group, electro-acupuncture group, and acupuncture group...
2023: Evidence-based Complementary and Alternative Medicine: ECAM
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