Research on Improving the Accuracy of Wearable Heart Rate Measurement Based on a Six-Axis Sensing Device Integrating a Three-Axis Accelerometer and a Three-Axis Gyroscope by Jinman Kim, Joongjin Kook

“…This study proposes a novel heart rate estimation method that detects subtle cardiac-induced vibrations propagated through the cardiovascular system based on the ballistocardiography (BCG) principle, using a six-axis heart rate sensing device that integrates a three-axis accelerometer and a three-axis gyroscope. …”
Get full text

Intelligent Stress Detection Using ECG Signals: Power Spectrum Imaging with Continuous Wavelet Transform and CNN by Rodrigo Mateo-Reyes, Irving A. Cruz-Albarran, Luis A. Morales-Hernandez

“…This study proposes a model based on depth-separable convolutional neural networks (DSCNN) to analyze heart rate variability (HRV) and detect stress. Electrocardiogram (ECG) signals are pre-processed to remove noise and ensure data quality. …”
Get full text

Parametric Optimization of Electric Discharge Machining for AISI 1045 Steel by Muhammad Mansoor Uz Zaman Siddiqui, Syed Amir Iqbal, Ali Zulqarnain, Adeel Tabassum

“…Optimizing these parameters reduced machining time (Tm) to 623.21 seconds thus significantly improving EDM efficiency. The material removal rate (MRR) was maximized at 0.0173 g/min resulting in considerable increase in material removal efficiency. …”
Get full text

INFLUENCE OF THE ELECTRODE MATERIAL ON ELECTRICAL DISCHARGE MACHINING PROCESS PERFORMANCE by OANA GHIORGHE, CAROL SCHNAKOVSZKY, EUGEN HERGHELEGIU, MARIA CRINA RADU, BOGDAN ALEXANDRU CHIRITA, NICOLAE CATALIN TAMPU, BOGDAN NITA, PETRICA RADU

“…The electrode is one of the most important factors affecting the process performance in terms of production efficiency and machined surface quality. The aim of the current study is to analyze the influence of the electrode material (i.e., copper, tungsten, and brass) on the performance of electrical discharge machining of a C120 die tool steel, quantified by material removal rate, tool wear rate, and electrode wear ratio. …”
Get full text

A Comparison of Efficiency of Life Insurance Companies in Mainland China and Taiwan Using Bootstrapped Truncated Regression Approach by Hwai-Shuh Shieh, Yang Li, Jin-Li Hu, Yong-Ze Ang

“…Empirical results reveal that the savings rate, elderly population percentage, and business freedom positively affect the managerial efficiency of life insurance companies in Taiwan and mainland China, while GDP growth rate, inflation rate, corruption index, and climate risk negatively affect their managerial efficiency.…”
Get full text

Phosphorus Placement Effects on Phosphorous Recovery Efficiency and Grain Yield of Wheat under No-Tillage in the Humid Pampas of Argentina by Pablo Andrés Barbieri, Hernán René Sainz Rozas, Fernanda Covacevich, Hernán Eduardo Echeverría

“…Three experiments were used to evaluate P rate (0, 25, and 50 kg P ha−1) and fertilizer placement (broadcasted or deep-banded) effects in NT wheat on P recovery efficiency (PRE) yield and arbuscular mycorrhizal colonization (AMC) which was assessed in one experiment. …”
Get full text

Comparison of solute clearance and anticoagulant efficiency on extracorporeal circulation pathway in different modes of continuous renal replacement therapy by HE Yong, ZHANG Xin, ZHOU Huan, ZHANG Ying, PENG Qing-ping, WANG Xiao-hui

“…Conclusions The clearance rate of CVVHDF and CVVHD for small solutes was higher than that of CVVH,while the clearance rates of CVVHDF and CVVH to macromolecules solutes were higher than those of CVVHD. …”
Get full text

Augmentation of Nitrogen Removal Efficiency of Aerobic Denitrifying Bacterial Communities by Inorganic Electron Donors via Enclosure Experiments by JIA Junjie, YAN Cihang, HUANG Tinglin, XING Zhenyan, GONG Hui

Get full text

Establishment of predictive models for head loss and filtration efficiency of pontoon mesh rotary filter based on dimension analysis by Zhen Jin, Lingwei Chen, Qiao Li, Mahemujiang Aihemaiti, Youwei Jiang, Hongfei Tao

“…The order of factors affecting the filtration efficiency of the assessment indices from large to small was as follows: sand content, flow rate, and aperture of the filter screen. …”
Get full text

Effects of Borehole Arrangement on Methane Migration and Implications for High Efficiency Extraction in Intact and Tectonic Combined Coal Seams by Chenxu Chang, Jun Dong, Wenqiang Ju

“…The traditional bedding boreholes are usually constructed in the center of the coal seam, which may not obtain a high methane extraction rate because of the existence of tectonic coal sublayer with low permeability. …”
Get full text

Application of big data technology in visitor behavioral characteristics identification and energy efficiency assessment of intelligent scenic spots by Wei Zhou, Jin Cui

“…The model had the highest average accuracy rate, able to reach 96%, which had the fastest convergence rate. …”
Get full text

Efficient Detection of Stigmatizing Language in Electronic Health Records via In-Context Learning: Comparative Analysis and Validation Study by Hongbo Chen, Myrtede Alfred, Eldan Cohen

“…Model fairness was evaluated using the equal performance criterion, measuring true positive rate, false positive rate, and F1-score disparities across protected attributes, including sex, age, and race. …”
Get full text

Analysis of the Influence of Nozzle Structure and Hydraulic Parameters on the Cutting Efficiency of High-pressure Abrasive Water Jet (AWJ) by X. Zhu, Z. Luo, Y. Luo, C. Shi, L. Wang

“…The purpose of this study is to enhance the cutting efficiency of high-pressure abrasive water jet (AWJ) by optimizing nozzle structure and jet hydraulic parameters. …”
Get full text

Preliminary study on the preparation of bio-organic fertilizer from sauce-flavor Baijiu distillers' grains and fertilizer efficiency by ZENG Xiang, LI Xiutong, JIANG Youfeng, XIA Xuchun, CHENG Lifangyu, WANG Xiaodan

Get full text

Adaptive MCS selection and resource planning for energy-efficient communication in LTE-M based IoT sensing platform. by Nhu-Ngoc Dao, Minho Park, Joongheon Kim, Sungrae Cho

“…However, LTE-M may not be optimally exploited for directly supporting such low-data-rate devices in terms of energy efficiency since it depends on core technologies of LTE that are originally designed for high-data-rate services. …”
Get full text

Efficient Investigation of Rock Crack Propagation and Fracture Behaviors during Impact Fragmentation in Rockfalls Using Parallel DDA by Lu Zheng, Yihan Wu, Wei Wu, Hong Zhang, Xinyan Peng, Xuelue Zhang, Xuezhen Wu

“…Furthermore, the effects of joint-slope angle, joint connectivity rate, and impact velocity on rock fracture behaviors are investigated. …”
Get full text

Revitalizing cadmium-stressed sunflower: co-composted biochar improves growth, antioxidant responses, and soil remediation efficiency by Muhammad Rauf, Muhammad Naveed, Muhammad Munir, Abdul Ghafoor, Muhammad Naeem Sattar, Hassan Ali-Dinar, Hisham A. Mohamed, Muhammad Asaad Bashir, Muhammad Asif, Adnan Mustafa

“…The chlorophyll content, water use efficiency (WUE), photosynthetic rate (A), transpiration rate (E), stomatal conductance (gs), sub-stomatal conductance (Ci), relative water content (RWC), and electrolyte leakage (EL) were improved by 122, 117, 126, 133, 128, 131, 123, and 121%, respectively, when co-composted biochar was used compared to the control. …”
Get full text

Predictive modeling and optimization of degasser efficiency in recirculating aquaculture systems using a hybrid ANN-PSO approach by Subha M. Roy, Hyunsoo Choi, Taeho Kim

“…The present study aimed to optimize the air flow rate (QA), water flow rate (QW), and packing media height (PMH) to enhance degasser performance. …”
Get full text

Selection Path for Energy-Efficient Food Waste Management in Urban Areas: Scenario Analysis and Insights from Poland by Anna Rolewicz-Kalińska, Krystyna Lelicińska-Serafin, Piotr Manczarski

“…The criteria for the selection of technologies for the energy-efficient processing of food waste from households in Poland were identified, taking into account the current state of these technologies, their prospective development, demographic changes, the nature of the regions, the trajectory of food waste generation, the spatial food waste generation rate, and the energy potential. …”
Get full text

Mannitol Induces Mercury Tolerance in Lettuce (Lactuca sativa) Through Improved Growth, Photosynthetic Efficiency, and Antioxidant Activity by Busra Arikan Abdulveli

“…Under Hg stress, lettuce exhibited a significant reduction in relative growth rate (RGR) by 31% and relative water content (RWC) by 20%. …”
Get full text