Leakage Characteristic of Helical Groove Seal Designed in Reactor Coolant Pump by Meng Zhang, Xiao-fang Wang, Sheng-li Xu, Shuo Yin

“…It can be predicated that, for a bigger helix angle, the friction factor increases slightly with an increase in high axial Reynolds number, which arises from the high-pressure operation condition, and the friction factor is generally sensitive to changes in the helix angle in this operation condition. …”
Get full text

MASTERING THE PRODUCTION OF A CONTINUOUS CASTING BILLET DIAMETER 200 MM FROM CHROME-MOLYBDENUM STEEL GRADES FOR THE PRODUCTION OF SEAMLESS PIPES AT THE OJSC «BSW – MANAGEMENT COMPA... by I. А. Bondarenko, I. A. Kovalenko, A. V. Tereshchenko, A. V. Feklistov

“…In turn, the specific operating conditions of the pipes present special requirements to the product for strength and resistance in aggressive media. …”
Get full text

Entropy-Based Stochastic Optimization of Multi-Energy Systems in Gas-to-Methanol Processes Subject to Modeling Uncertainties by Xueteng Wang, Jiandong Wang, Mengyao Wei, Yang Yue

“…Structural errors in these models under varying operating conditions result in noticeable model uncertainties. …”
Get full text

Dynamic Characteristics of an Offshore Wind Turbine with Tripod Suction Buckets via Full-Scale Testing by Yun-Ho Seo, Moo Sung Ryu, Ki-Yong Oh

“…Moreover, dynamic analysis of the strain and acceleration measured during operational conditions shows that strain is more robust than acceleration with regard to the characterization of the overall dynamics of an offshore wind conversion system because the natural frequency of an offshore wind turbine is very low. …”
Get full text

On the Adaptability and Effect of High Damping Rubber Bearings in the Seismic Resistance of Large Aqueducts by Duoxin Zhang, Yang Yu, Kai Sun, Yanke Shi

“…The dynamic responses of the large aqueduct under different ground motion excitations, including different peak ground accelerations (PGAs) and operating conditions, have been calculated using the precise integration method. …”
Get full text

Algorithm оf Computer Model Realization оf High-Frequency Processes in Switchgears Containing Non-Linear Over-Voltage Limiters by Ye. V. Dmitriev, A. M. Gashimov, N. R. Babayeva

“…Analysis of the Over-Voltage Limiter (OVL) influence on electromagnetic high-frequency over-voltages at commutations with isolators of unloaded sections of wires and possibility of application of a frequency-dependent resistor in case of necessity to facilitate OVL operation conditions is provided in the paper.It is shown that it is necessary to take into account characteristics of OVL by IEEE circuit and its modifications at computer modeling of high-frequency over-voltages.…”
Get full text

Greenhouse Gases Emissions from Wastewater Treatment Plants: Minimization, Treatment, and Prevention by J. L. Campos, D. Valenzuela-Heredia, A. Pedrouso, A. Val del Río, M. Belmonte, A. Mosquera-Corral

“…In current WWTPs, to modify the operational conditions of existing units reveals itself as possibly the most economical way to decrease N2O and CO2 emissions without deterioration of effluent quality. …”
Get full text

Shedding Light on the Active Species in a Cobalt‐Based Covalent Organic Framework for the Electrochemical Oxygen Evolution Reaction by Pouya Hosseini, Andrés Rodríguez‐Camargo, Yiqun Jiang, Siyuan Zhang, Christina Scheu, Liang Yao, Bettina V. Lotsch, Kristina Tschulik

“…The study thus emphasizes that caution is warranted when assessing the catalytic activity of COF electrocatalysts, as the pristine COF may act as the pre‐catalyst, with the active species forming only under catalyst operating conditions. Specifically, strong coordination between COFs and metal centers under electrochemical operation conditions is crucial to avoid unintended transformation of COF electrocatalysts. …”
Get full text

Nonlinear MIMO Control of a Continuous Cooling Crystallizer by Pedro Alberto Quintana-Hernández, Raúl Ocampo-Pérez, Salvador Tututi-Avila, Salvador Hernández-Castro

“…The nonlinear control (NLC) was tested at operating conditions established within the metastable zone. …”
Get full text

Critical Segments Identification for Link Travel Speed Prediction in Urban Road Network by Xiaolei Ru, Xiangdong Xu, Yang Zhou, Chao Yang

“…Predicting traffic operational condition is crucial to urban transportation planning and management. …”
Get full text

Kinetic Study on the CsXH3−X PW12O40/Fe-SiO2 Nanocatalyst for Biodiesel Production by Mostafa Feyzi, Leila Norouzi, Hamid Reza Rafiee

“…Herein, a kinetic study utilizing Gc-Mas in situ allows for evaluating the effects of operation conditions on reaction rate and determining the activation energy along with thermodynamic constants including ΔG, ΔS, and ΔH. …”
Get full text

Analysis of Mechanical Properties and Slope Stability of Red Bed Soft Rock: A Case Study in Xinjiang Irrigation Diversion Channel by Da Liu, Jianglin Gao, Fang Chen, Songtao Hu, Xiaohua Zhao, Yan Li

“…Under long-term operation conditions, the sediment stripped from the channel side wall is liable to silt along the process of water flow transportation in the channel, which seriously leads to elevation of the channel bottom, increase of channel width, and reduction of the horseway, which affect the normal water conveyance and operation safety of channels. …”
Get full text

Machine learning based sucker rod pump fault diagnosis using motor power curve by Othman H. Ahmed, Samuel I. Tecle, Anatoliy A. Zyuzev, Vladimir P. Metelkov

“…Being the fundamental energy source for the oil production, motor power is directly related to the real-time operating condition of the oil well, and the motor power curve is a reliable source with the ability to increase the efficiency of sucker rod pump diagnostic. …”
Get full text

Implementation of Adaptive Neuro-fuzzy Model to Optimize Operational Process of Multiconfiguration Gas-Turbines by Chao Deng, Ahmed N. Abdalla, Thamir K. Ibrahim, MingXin Jiang, Ahmed T. Al-Sammarraie, Jun Wu

“…The predicted results reveal that the proposed model determines the operating conditions that strongly influence the performance of the gas-turbine. …”
Get full text

Assessing the Filtration Effectiveness of a Portable Ultraviolet Air Cleaner on Airborne SARS-CoV-2 Laden Droplets in a Patient Room: A Numerical Study by Yu Feng, Jianan Zhao, Michele Spinolo, Kyle Lane, Darren Leung, Dave Marshall, Peter Mlinaric

“…Using the experimentally validated computational fluid-particle dynamics (CFPD) model, this study simulated the airborne transmission, deposition, and clearance of the COVID-19 virus-laden droplets emitted from a virtual patient in a virtual patient room with realistic ventilation conditions and various operating conditions of the portable UV air cleaner. Parameter analysis was performed to investigate how the ventilation conditions and the operation conditions of the sanitizer can influence the effectiveness of the filtration, which are quantified by the reduction of the concentration of virus-laden droplets suspended in the room and escaped from the room into the main ventilation system. …”
Get full text

Experimental Study on the Effects of Controllable Parameters on the Healthy Operation of SF-2A Material Water-Lubricated Stern Bearing in Multi-Point Ultra-Long Shaft Systems of Sh... by Xingshan Chang, Jie Liu, Xinping Yan, Feng Sun, Hanhua Zhu, Chengmin Wang

“…Effective control of the health operating condition of multi-support, ultra-long shaft system water-lubricated stern bearings is crucial for supporting the intelligent maintenance and health management of ships. …”
Get full text

Features of test of air-fuel system of gas turbine engine by V. N. Klimov, D. Ya. Dud’ev, V. Ya. Sigaylo, N. I. Klimov

“…The solution to this problem requires bench tests of the air-fuel lubrication system of the GTE under different operating conditions. The purpose of this work is to develop a schematic diagram of the unit, which allows testing the GTE rotary bearings lubricated with an air-fuel mixture under different operating conditions (operating modes, parameters of an air-fuel mixture). …”
Get full text

Promoting in-situ stability of hydroxide exchange membranes by thermally conductive network for durable water electrolysis by Wei Wang, Ruixiang Guo, Aodi Zheng, Xiaorui Jin, Xiongjie Jia, Zhiwei Ren, Yangkai Han, Lifeng Zhang, Yeming Zhai, Xiaofen Liu, Haoran Jiang, Yun Zhao, Kai-Ge Zhou, Meiling Wu, Zhongyi Jiang

“…This study manifests the significance of thermal conductivity of HEM on the durability of water electrolysis, which provides guidelines on the rational design of highly durable HEMs in practical operation conditions for water electrolysis, fuel cells, and beyond.…”
Get full text

Interfacial Dynamic Velocity for Solar Cell Characterization by J. Farah, B. Azar, A. Khoury, P. Mialhe

“…Additionally, it is shown to be a function of the operating conditions such as the applied potential and the illumination level.…”
Get full text

Global Sensitivity Analysis of the Vibration Reduction System with Seated Human Body by Igor Maciejewski, Tomasz Krzyzynski

“…The paper deals with the global sensitivity analysis for the purpose of shaping the vibroisolation properties of suspension systems under strictly defined operating conditions. The variance-based method is used to evaluate an influence of nonlinear force characteristics on the system dynamics. …”
Get full text