Processes

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A Finite Element Simulation of the Active and Passive Controls of the MHD Effect on an Axisymmetric Nanofluid Flow with Thermo-Diffusion over a Radially Stretched Sheet
Processes - Tập 8 Số 2 - Trang 207
Bagh Ali, Xiaojun Yu, Muhammad Tariq Sadiq, Ateeq Ur Rehman, Liaqat Ali
The present study investigated the steady magnetohydrodynamics of the axisymmetric flow of a incompressible, viscous, electricity-conducting nanofluid with convective boundary conditions and thermo-diffusion over a radially stretched surface. The nanoparticles’ volume fraction was passively controlled on the boundary, rather than actively controlled. The governing non-linear partial differ...... hiện toàn bộ
Analysis of Flow and Wear Characteristics of Solid–Liquid Two-Phase Flow in Rotating Flow Channel
Processes - Tập 8 Số 11 - Trang 1512
Peng Wang, Xinyu Zhu, Yi Li
To study the flow characteristics and the wear distribution of pumps at different rotation speeds, a rotating disc with three blades was designed for experiments. Numerical simulations were conducted using a computational fluid dynamics-discrete phase model (CFD–DPM) approach. The experimental and numerical results were compared, and the flow characteristics and wear behaviors were determi...... hiện toàn bộ
Effects of Different Wall Shapes on Thermal-Hydraulic Characteristics of Different Channels Filled with Water Based Graphite-SiO2 Hybrid Nanofluid
Processes - Tập 9 Số 7 - Trang 1253
Yacine Khetib, Ahmad Aziz Alahmadi, Ali Alzaed, Ahmad Tahmasebi, Mohsen Sharifpur, Goshtasp Cheraghian
In the current numerical study, various wall shape effects are investigated on the thermal-hydraulic characteristics of different channels filled with water-based graphite-SiO2 hybrid nanofluid. In this work, the performance evaluation criteria (PEC) index is employed as the target parameter to attain optimum geometry. Six different cases are studied in this research, and each case has dif...... hiện toàn bộ
Natural Convection and Entropy Generation of MgO/Water Nanofluids in the Enclosure under a Magnetic Field and Radiation Effects
Processes - Tập 9 Số 8 - Trang 1277
Yacine Khetib, Ahmad Aziz Alahmadi, Ali Alzaed, Ahamd Tahmasebi, Mohsen Sharifpur, Goshtasp Cheraghian
The authors of the present paper sought to conduct a numerical study on the convection heat transfer, along with the radiation and entropy generation (EGE) of a nanofluids (NFs) in a two and three-dimensional square enclosure, by using the FVM. The enclosure contained a high-temperature blade in the form of a vertical elliptical quadrant in the lower corner of the enclosure. The right edge...... hiện toàn bộ
Monitoring Parallel Robotic Cultivations with Online Multivariate Analysis
Processes - Tập 8 Số 5 - Trang 582
Sebastian Groß, Christian Ulmer, Harini Narayanan, Trygve Brautaset, Niels Krausch, Peter Neubauer, Irmgard Schäffl, Michael Sokolov, Mariano Nicolás Cruz Bournazou
In conditional microbial screening, a limited number of candidate strains are tested at different conditions searching for the optimal operation strategy in production (e.g., temperature and pH shifts, media composition as well as feeding and induction strategies). To achieve this, cultivation volumes of >10 mL and advanced control schemes are required to allow appropriate sampling and ...... hiện toàn bộ
Relationship Between MiRKAT and Coefficient of Determination in Similarity Matrix Regression
Processes - Tập 7 Số 2 - Trang 79
Xiang Zhan
The Microbiome Regression-based Kernel Association Test (MiRKAT) is widely used in testing for the association between microbiome compositions and an outcome of interest. The MiRKAT statistic is derived as a variance-component score test in a kernel machine regression-based generalized linear mixed model. In this brief report, we show that the MiRKAT statistic is proportional to the R ...... hiện toàn bộ
Aeration Process in Bioreactors as the Main Energy Consumer in a Wastewater Treatment Plant. Review of Solutions and Methods of Process Optimization
Processes - Tập 7 Số 5 - Trang 311
Jakub Drewnowski, Anna Remiszewska-Skwarek, Sylwia Duda, Grzegorz Łagód
Due to the key role of the biological decomposition process of organic compounds in wastewater treatment, a very important thing is appropriate aeration of activated sludge, because microorganisms have to be supplied with an appropriate amount of oxygen. Aeration is one of the most energy-consuming processes in the conventional activated sludge systems of wastewater treatment technology (m...... hiện toàn bộ
Flotation in Water and Wastewater Treatment
Processes - Tập 6 Số 8 - Trang 116
George Z. Kyzas, K. A. Matis
Flotation constitutes a separation process that originated from mineral processing. Nowadays, wider applications have been found and compared to flotation for water and wastewater treatment. Stress in the present review paper was mainly applied to heavy metal ions recovery by flotation and the respective mechanism followed, being either ion, precipitate, or sorptive flotation. In the latte...... hiện toàn bộ
Preparation of KOH and H3PO4 Modified Biochar and Its Application in Methylene Blue Removal from Aqueous Solution
Processes - Tập 7 Số 12 - Trang 891
Li Liu, Yang Li, Shisuo Fan
Improperly treated or directly discharged into the environment, wastewater containing dyes can destroy the quality of water bodies and pollute the ecological environment. The removal of dye wastewater is urgent and essential. In this study, corn stalk was pyrolyzed to pristine biochar (CSBC) in a limited oxygen atmosphere and modified using KOH and H3PO4 (KOH-CSBC, H3PO4-CSBC, respectively...... hiện toàn bộ
Food Waste Composting and Microbial Community Structure Profiling
Processes - Tập 8 Số 6 - Trang 723
Kishneth Palaniveloo, Muhammad Azri Amran, Nur Azeyanti Norhashim, Nuradilla Mohamad‐Fauzi, Fang Peng-Hui, Low Hui-Wen, Yap Kai-Lin, Looi Jiale, Melissa Goh Chian-Yee, Lai Jing-Yi, Baskaran Gunasekaran, Shariza Abdul Razak
Over the last decade, food waste has been one of the major issues globally as it brings a negative impact on the environment and health. Rotting discharges methane, causing greenhouse effect and adverse health effects due to pathogenic microorganisms or toxic leachates that reach agricultural land and water system. As a solution, composting is implemented to manage and reduce food waste in...... hiện toàn bộ
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