Research and application on megawatt level intelligent fracturing pump system in coal mine by Ran LI, Chuliang WANG, Bo LIU, Yanjun FENG, Pengfei JIANG, Rongming CHEN, Jingbin CHEN, Zhuo CHEN, Dalong WANG, Haicheng LU, Zongkai GUO, Tianze CAO, Yuanzheng YU, Chao WANG

“…The research included: Development of high-strength, erosion-resistant martensitic precipitation hardening stainless steel suitable for extreme conditions with large flow, ultra-high pressure, and sand-mixed media, along with ultra-high pressure self-reinforcing treatment to enhance the fatigue life of the hydraulic ends of fracturing pumps; Investigation of critical reliability technologies, including high-strength welding for alloy steel, high-load-bearing, high-power-to-weight ratio gear transmission technology, and wear-resistant friction pairs of aluminum bronze alloy-cast iron, to ensure the reliability of the transmission system under high-power conditions; Creation of a high-durability metal plunger-combination seal fracturing fluid sealing pair, with the application of computer simulation technologies such as virtual prototyping, FEA, CFD, and hydraulic system simulation to optimize the structure, performance, and reliability of the fracturing pump’s fluid end suction and discharge systems; Mastery of technologies such as low-frequency variable flow sealing for deep boreholes, automatic identification of coal and rock layer fracturing, and cyclic fracturing control, enabling intelligent control throughout the fracturing process. …”
Get full text

Psychophysiological methods and criteria for the selection of individual metered loads in athletes of taekwondo section by G. V. Ohromiy, N.U. Makarova, A.M. Kasyuha

“…Purpose: scientific rationale approaches Express-diagnostics for athletes of taekwondo section by psychophysiological parameters. Material: Total surveyed 84 people, including 68 boys and 16 girls. …”
Get full text

NEW APPROACHES TO INDIVIDUALIZED CHOICE OF ORAL ANTICOAGULANTS IN PATIENTS WITH ATRIAL FIBRILLATION by Ju. P. Skirdenko, N. A. Nikolayev

“…To evaluate adherence to treatment, mutations of the hemostatic system and food preferences as predictors of choice of optimal anticoagulant therapy in patients with atrial fibrillation (AF).Material and methods. 142 patients with AF were quantitatively evaluated in terms of their adherence to treatment, polymorphism of genes CYP2C9 and VKORC1 and the structure of food preferences.Results. …”
Get full text

Inflammatory and neutrophil activation markers in Behcet's disease by K. S. Nurbaeva, T. M. Reshetnyak, R. G. Goloeva, A. M. Lila, E. L. Nasonov

“…Erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) have low sensitivity, so the search for new biomarkers continues. …”
Get full text

Carbon-neutral heat supply strategies for industrial decarbonization: A critical and systematic literature review by Wen Chen, Chenghao Wei, Lu Sun, Huijuan Dong, Yasuaki Hijioka, Kenichi Nakajima, Minoru Fujii

Get full text

Evaluation of Mechanochemically Prepared CePO₄∙H₂O Nanoparticles as UV Filter for Photoprotective Formulations by Stanislav Kurajica, Filip Brleković, Sabina Keser, Goran Dražić, Katarina Mužina, Vanesa Mihajlović

“…X-ray diffraction analysis showed that the optimal synthesis duration was 15 min, since, in this case, pure rhabdophane is obtained, without traces of contamination by the vessel material. …”
Get full text

Enhanced tribological properties of filled modified polytetrafluoroethylene with flower-shaped MoS2/C by Aoyu ZHAO, Wenzheng DONG, Yanxiang CHEN, Rong YANG, Qiquan LIN

“…Deviating from these optimal levels, either with excessively high or excessively low carbon contents, can detrimentally affect the tribological properties of the composites. …”
Get full text

Microhooks: A Novel Framework to Streamline the Development of Microservices by Omar Iraqi, Mohamed El Kadiri El Hassani, Anass Zouine

“…In this article, we present Microhooks: a novel framework designed to streamline the development of microservices by allowing developers to focus on their business logic while declaratively expressing the so-called low-level needs. Based on the inversion of control and the materialized view patterns, among others, our framework automatically generates and injects the corresponding artifacts, leveraging 100% build time code introspection and instrumentation, as well as context building, for optimized runtime performance. …”
Get full text

Casting of Aluminium Foam with Defined Porosity Using DoE by Z. Kopanica, A. Herman, A. Kříž

“…Closed cell aluminium foam offers an interesting combination of properties such as high energy absorption, stiffness, strength and low density. These properties give it great potential as an impact absorbing material which can be used in the automotive industry, military, civil engineering and others. …”
Get full text

Multi-Fidelity Machine Learning for Identifying Thermal Insulation Integrity of Liquefied Natural Gas Storage Tanks by Wei Lin, Meitao Zou, Mingrui Zhao, Jiaqi Chang, Xiongyao Xie

“…However, perlite settlement (insulation material) can result in thermal leaks and lead to engineering risks. …”
Get full text

Study on Composition Design and Performance Characteristics of Warm-Mixed Rubber–Asphalt Mixture for Cold-Region Stress Absorption Layers by Rui Pan, Jifeng Chang, Yu Chen

“…Through orthogonal tests, regression analysis, and performance comparisons with SBS-modified asphalt, the material composition, low-temperature cracking resistance, and fatigue performance of WMRAM were systematically evaluated. …”
Get full text

Selection of winter types of wheat from its spring types sawn in winter after prior vernalization by Л. М. Голик

“…Remeslo UAAN new winter-hardy winter wheat variety material was obtained. The annual breeding was used for the selection df winter wheat forms from spring wheat varieties by the prevernalization, spring sowing and M2 at the beginning of optimal terms in autumn (the influence of low temperature on spring wheat seeds). …”
Get full text

Stacked Nanosheet Gate‐All‐Around Morphotropic Phase Boundary Field‐Effect Transistors by Sihyun Kim, Hyun‐Min Kim, Ki‐Ryun Kwon, Daewoong Kwon

“…Capacitance (small‐signal and quasi‐static) and transient current measurements of MPB‐FETs confirmed that near‐threshold voltage (VTH) capacitance amplification leads to Ion boosts under high‐speed and low‐power conditions. For the first time, two‐stacked nanosheet (NS) gate‐all‐around (GAA) MPB‐FETs with optimized HZO, demonstrating superior short channel effect (SCE) immunity with enhanced current drivability is fabricated. …”
Get full text

Postural Orthostatic Tachycardia Syndrome (POTS) – A Review of Pathophysiological Mechanisms, Diagnosis and Therapy by Alicja Dziedzic, Daria Furtak, Wiktor Grela, Jagoda Niewiadomska, Paulina Głogowska, Dawid Tulej, Dominika Marciniuk, Natalia Gniaź, Aleksandra Górska, Natalia Marko

“…Conclusions Raising awareness of POTS among physicians is essential for delivering optimal healthcare to patients. Despite the prevalence of POTS and its significant impact on patients' lives, research funding remains disproportionately low. …”
Get full text

Comparability of cardiovascular risk assessment according to the SCORE and the coronary artery calcium score (Agatston score) by A. S. Safaryan, V. A. Vygodin, D. V. Nebieridze, K. V. Nikonova

“…According to the SCORE, the groups were distributed as follows: 62 (29,2%) — low risk, 128 (60,4%) — moderate risk, 16 (7,5%) — high risk, 6 (2,8%) — very high risk. …”
Get full text

An Economical Modification Method for MIL-101 to Capture Radioiodine Gaseous: Adsorption Properties and Enhancement Mechanism by Peng Wang, Bing-Bing Qi, Ao-Tian Gu, Kai-Wei Chen, Chun-Hui Gong, Yang Yi

“…The iodine adsorbent needs to have some advantages, such as simple preparation method, low cost, high absorption capacity, and recyclable utilization. …”
Get full text

The influence of Holstein crossbreeding on the reproductive qualities of Black-and-White cows by S. V. Titova

“…Thus, the first-calf heifers with a low proportion of Holstein genes (up to 12.5 %) had the latest age of the first fruitful insemination and the first calving (21.9 months and 32.3 months). …”
Get full text

Effect of Head and Tongue Posture on the Pharyngeal Airway Dimensions and Morphology in Three-Dimensional Imaging: a Systematic Review by Sirwan Fernandez Gurani, Gabriele Di Carlo, Paolo M. Cattaneo, Jens Jørgen Thorn, Else Marie Pinholt

“…Objectives: Natural head position is recommended to be optimal at cone-beam computed tomography acquisition. …”
Get full text

Influence of blood electrolyte levels on the risk of atrial fibrillation after cardiac surgery by Z. G. Tatarintseva, E. D. Kosmacheva, O. V. Babicheva

“…To analyze the relationship of low blood potassium concentration before surgery with the risk of postoperative atrial fibrillation (POAF).Material and methods. …”
Get full text

Impact of surface coating on freshwater generation from solar stills: a comprehensive review by Mosab Elhassan, Ravishankar Sathyamurthy

“…This review also highlights key trends, challenges, and future areas for research that could provide valuable insights for researchers in the field of sustainable water resources to further optimize the use of nanoparticles as a coating material in solar stills.…”
Get full text