Optimization of a portable ligand-free optical spectroscopy method for SARS-CoV-2 protein detection by Fatin Hamimi Mustafa, Nik Yusnoraini Yusof, Mawaddah Mohd Azlan, Fariza Hanim Suhailin, Chan Yean Yean, Nik Mohd Noor Nik Zuraina, Mohd Zulkifli Salleh, Hironaga Uchida, Irneza Ismail, Rosline Hassan, Raja Kamarulzaman Raja Ibrahim, Mohd Adzir Mahdi

Get full text

Safety coefficients for products made of composite materials using the example of a compressed cylindrical shell by V. N. Nagovitsin, Y. P. Pokhabov, E. A. Ivanov, A. Y. Pokhabov

“…The result of the study is a developed calculation method based on the limit state, which allows to evaluate the accuracy of the theoretical solutions used, determine the values of safety coefficients and design a minimum mass structure. …”
Get full text

A Semi‐Analytical Solution for the Equivalent Permeability Coefficient of the Multilayered Porous Medium With Continuous Fracture by Shuai Zhang, Xiaoli Liu

“…The most direct and effective approach to assess the hydraulic conductivity of a multilayered porous medium with continuous fracture is to determine its equivalent permeability coefficient (EPC). …”
Get full text

Local buckling coefficients for thin-walled lipped channels under bending about asymmetrical axis by Huy Hoang Vu, Quoc Anh Vu, Cao Hung Pham

“…This paper aims to calibrate a formula for determining the buckling coefficient of thin-walled lipped channels subjected to bending about the asymmetrical axis when the web is in compression to modify the current analytical solution in AISI S100, which has been reported to have poor accuracy. …”
Get full text

Modified shape coefficient of building with Thermal considerations: concept, experiment and Application in solar-enriched areas by Jin Li, Tinglei Yue, Yin Zhang

“…A novel concept and determining method of modified shape coefficient of building (MSCB) were proposed based on the energy dissipating and solar heat gain. …”
Get full text

Local change in the stress state in rock samples before destruction according to the Lode–Nadai coefficient by R.A. Lementueva, Yu.L. Rebetsky, N.Ya. Bubnova, A.V. Treusov

“…In this paper, the relationship of the Lode–Nadai coefficient, which determines the shape of the stress ellipsoid, with the nature of brittle fracture in sandstone, pyrophyllite and dolomite samples for a rigid loading machine is investigated. …”
Get full text

Perception of Trainers for the Athlete by Nuri Berk Güngör, Serkan Kurtipek

Get full text

Balancing the piezoelectric coefficient and carrier concentration of Bi2WO6−x for ultrahigh piezocatalysis by Ying Wang, Xiaoli Xu, Lingbo Xiao, Lutao Li, Qiuhua Xu, Zhenhai Wen, Laishun Qin, Yanmin Jia, Dong-Liang Peng, Wanping Chen, Da Chen

“…The optimal hydrogen production rate per power of 2.21 μmol·g−1·h−1·W−1 is equivalent to or even better than that of most reported piezocatalysts. The piezoelectric coefficient and carrier concentration, as two factors, jointly determine the piezocatalytic performance. …”
Get full text

Enhancing energy conversion efficiency of electromagnetic repulsion mechanisms through resistance coefficient optimization model by Puyi Cui, Guoli Li, Qian Zhang

“…Subsequently, finite element analysis techniques are applied to simulate electromagnetic repulsion mechanisms across varying resistance coefficients to determine the optimal value. Experimental validation of theoretical models and numerical simulation results is then performed, with precise adjustments made to the resistance coefficient during experiments, and energy conversion efficiency accurately measured under diverse conditions. …”
Get full text

Weak fault diagnosis method for rolling bearings under strong background noise based on EEMD-FK-AMCKD by XIE Guizhong, XU Shuaiqiang, DU Wenliao, LUO Shuangqiang, LI Hao, WANG Liangwen, GONG Xiaoyun

“…ObjectiveTo address the challenge of accurately capturing weak features in vibration signals under strong noise interference, a joint filtering method combining ensemble empirical mode decomposition (EEMD), fast kurtogram (FK), and adaptive maximum correlation kurtosis deconvolution (AMCKD) was proposed.MethodsFirstly, the vibration signal was decomposed into multiple intrinsic mode functions (IMF) via EEMD for multiscale analysis. …”
Get full text

Analysis and Forecast of the Demographic Situation in Kazakhstan by D. M. Kangalakova, Zh. K. Abzhan, S. Zh. Ibraimova, L. S. Spankulova

“…Using the method of extrapolation, the coefficients of fertility, mortality, natural, absolute, average population growth, and migration coefficient were determined. …”
Get full text

An Innovative Inversion Method of Potato Canopy Chlorophyll Content Based on the AFFS Algorithm and the CDE-EHO-GBM Model by Xiaofei Yang, Qiao Li, Honghui Li, Hao Zhou, Jinyan Zhang, Xueliang Fu

“…The optimal coefficients of determination (R²) values of the prediction set are 0.663, 0.683, and 0.906, respectively, the Root Mean Squared Error (RMSE) values are 2.673, 3.218, and 2.480, respectively, and the Mean Absolute Error (MAE) values are 2.052, 2.732, and 1.928, respectively, during the seedling stage, tuber expansion stage and cross-growth stage. …”
Get full text

Smartphone Video Imaging Combined with Machine Learning: A Cost-Effective Method for Authenticating Whey Protein Supplements by Xuan Tang, Wenjiao Du, Weiran Song, Weilun Gu, Xiangzeng Kong

“…It obtains coefficients of determination of 0.897, 0.906 and 0.963 for the quantification of fat content, energy levels and milk powder adulteration, respectively. …”
Get full text

The Validation of the Tanner–Whitehouse 3 Method for Radiological Bone Assessments in a Pediatric Population from the Canary Islands by Sebastián Eustaquio Martín Pérez, Isidro Miguel Martín Pérez, Ruth Molina Suárez, Jesús María Vega González, Alfonso Miguel García Hernández

“…This study validates the use of the Tanner–Whitehouse 3 method for determining bone age in pediatric and adolescent populations in the Canary Islands. …”
Get full text

Green and sustainable LC-APCI-MS/MS method for simultaneous quantification of genotoxic nitrosamines in antidiabetic medication: sitagliptin by Sriram Pepakayala, Venkata Nadh Ratnakaram, Yuvaraj Zunjarrao, Yogesh Kumar Lohia

“…Sustainable Development Goal 9 (SDG9: Industry, Innovation, and Infrastructure), Target 9.4 was realized by developing a simple and straightforward LC-APCI-MS/MS method for simultaneous determination of potential nitrosamines: N-nitroso dimethylamine, N-nitroso di isopropyl amine, N-nitroso isopropyl ethylamine and N-nitroso methyl aminopyridine (NDMA, NDIPA, NIPEA and NMAP) in Sitagliptin Phosphate Monohydrate API (STG-API), an antidiabetic medication for type-2 diabetes and validated as per ICH (Q2 R2) guidelines. …”
Get full text

Development and validation of derivative UV spectroscopic methods for simultaneous estimation of duloxetine and tadalafil in their binary mixtures: greenness-blueness evaluation by Dalia M. Nagy, Sayed M. Derayea, Al Amir S. Zaafan, Mohamed Oraby

“…The methods are accurate and precise. The proposed methods can be used for simultaneous determination of DLX and TDL in synthetic mixture. …”
Get full text

Investigating effects of cutting parameters on surface roughness machined by turning of C45 steel based on Taguchi methodology and ANOVA by Thanh Thuong Huynh, Hoai Tan Nguyen, Quoc Khanh Huynh, Van Cuong Nguyen, Van Huu Bui

“…The regression equation was proposed to predict the roughness of turned surfaces and its determination coefficient ( ) of 0.9985. The prediction predicted by the regression models is compared to the experiment. …”
Get full text

TOPSIS based comprehensive evaluation of the effect of drying methods on polyphenolic contents and associated antioxidant activities of Moringa oleifera leaves by Rohit, Nayan Rishi, K. M. Manju, Sachin, Gunjan Goel

“…The multivariate decision analysis ranked the SHD as the best method for release of higher contents of phenolics and antioxidant activities depending on closeness coefficient.…”
Get full text

Investigating effects of cutting parameters on surface roughness machined by turning of C45 steel based on Taguchi methodology and ANOVA by Thanh Thuong Huynh, Hoai Tan Nguyen, Quoc Khanh Huynh, Van Cuong Nguyen, Van Huu Bui

“…The regression equation was proposed to predict the roughness of turned surfaces and its determination coefficient ( ) of 0.9985. The prediction predicted by the regression models is compared to the experiment. …”
Get full text

Bacterial Consortium Biofilm-Based Electrochemical Biosensor for Measurement of Antioxidant Polyphenolic Compounds by Rani Melati Sukma, Dyah Iswantini, Novik Nurhidayat, Mohamad Rafi

“…This work describes the development of an electrochemical biosensor method based on bacterial consortia to determine antioxidant capacity. …”
Get full text