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Journal articles on the topic 'Sieving ratio'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Shi, Jun, Ya Yu Huang, Shi Chang Han, Bin Xing Hu, and Guo Wei Xie. "Fitting Method Research of Sieving Parameters of Vibration Screen and Sieving Efficiency Based on DEM." Advanced Materials Research 655-657 (January 2013): 20–23. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.20.

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Nowadays, many scholars attach importance to how sieving parameters of vibration screen influence sieving efficiency. The traditional research of screening theory and technology depended on the screening test that consumed a lot of human labour, material resources and money.DEM software EDEM was used to establish the simulation model of screening in this paper. Five simulation particle shapes were built base on real shapes of stone particle. After completing 20 groups simulation, sieving efficiency were calculated based on ratio of undersize in feeding and undersize. The formula of sieving par

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2

Krakover, Shaul, and Andrea Corsale. "Sieving tourism destinations: Decision-making processes and destination choice implications." Journal of Tourism, Heritage & Services Marketing 7, no. 1 (2021): 33–43. https://doi.org/10.5281/zenodo.4518923.

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<strong><em>Purpose</em></strong><em>: To introduce and define the concept of sieving tourism destinations as an umbrella term representing faster decision-making processes compared to destination choice models, and to demonstrate its usefulness for both sides of consumption and production of tourism attractions.</em> <strong><em>Methods</em></strong><em>: Fast decision at the consumers’ demand side is demonstrated via an exploratory graphic model. Producers’ supply side sieving is measured by observing data elimination on two public serving internet platforms compared to a baselin

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Ur Rehman, Waheed, Amin Ur Rehman, Faridullah Khan, Amir Muhammad, and Mohammad Younas. "Studies on Beneficiation of Manganese Ore through High Intensity Magnetic Separator." Advances in Sciences and Engineering 12, no. 1 (2020): 21–27. http://dx.doi.org/10.32732/ase.2020.12.1.21.

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Upgradation techniques like wet sieving and magnetic separation were used to evaluate the beneficiation potential of manganese ore. During wet sieving, manganese content in raw ore was upgraded from 27% to a maximum value of 38% in the concentrate with a recovery of 30%. Size classification was found to have no measurable effect on manganese grade in magnetic separation. In the unsieved ground ore, manganese content of 45% was achieved with a recovery of 23% and Mn/Fe ratio of 19% at a magnetic intensity of 8500 Gauss. At the same operating conditions, SiO2 was reduced from 56% in the raw ore

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4

Wei, Dao Xin, Li Bian, and Bao Lin Zhu. "Research on High Blending Ratio of RAP Hot Recycling Plant." Applied Mechanics and Materials 361-363 (August 2013): 1645–49. http://dx.doi.org/10.4028/www.scientific.net/amm.361-363.1645.

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Analyze two problems why blending ratio of plant-mixed RAP generally cannot be more than 40% to 50%. Prove pre-heating and sieving of RAP is a key technology to solve the problems. Design a high blending ratio of RAP recycling plant. Through construction of high blending ratio of RAP Hot recycling plant and testing pavement proved that applied ratio of RAP in hot plant mixed recycled can be increased to more than 70%.

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Bian, Li, Bao Lin Zhu, Tong Wang, and Dao Xin Wei. "Optimized Design of Plant-Mixed Recycled Materials with High Blending Ratio of RAP." Advanced Materials Research 779-780 (September 2013): 151–55. http://dx.doi.org/10.4028/www.scientific.net/amr.779-780.151.

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Analyze two problems why blending ratio of plant-mixed RAP generally cannot be more than 40% to 50%. Prove pre-heating and sieving of RAP is a key technology to solve the problems. The test of blending ratio and construction of testing road has proved that applied ratio of RAP in hot recycling plant can be increased to more than 70%.

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6

Avrampos, Panagiotis, and George-Christopher Vosniakos. "A Simulation Study on Sieving as a Powder Deposition Method in Powder Bed Fusion Processes." Materials 17, no. 14 (2024): 3382. http://dx.doi.org/10.3390/ma17143382.

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Powder deposition of even and homogeneous layers is a major aspect of every powder bed fusion process. Powder sieving is commonly performed to powder batches outside of the PBF machine, prior to the part manufacturing stage. In this work, sieving is examined as a method of powder deposition rather than a method to solely filter out agglomerates and oversized particles. Initially, a DEM powder model that has been validated experimentally is implemented, and the sieving process is modelled. The sieving process is optimized in order to maximize mass flow, duration of its linear stage and total ma

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Lau, A. H., K. Pyle, N. O. Kronfol, and C. R. Libertin. "Removal of Cephalosporins by Continuous Arteriovenous Ultrafiltration (CAVU) and Hemofiltration (CAVH)." International Journal of Artificial Organs 12, no. 6 (1989): 379–83. http://dx.doi.org/10.1177/039139888901200606.

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Cephalosporins are used with increasing frequency for sepsis treatment in patients receiving CAVU and CAVH. The different cephalosporins share the same basic molecular structure, yet they exhibit varied extent of plasma protein binding. Different amounts of the antibiotics may be removed by the ultrafiltration procedure because of these variations of physicochemical properties. We evaluated the sieving of eight new cephalosporins across the hemofilter membrane using an in vitro model. Bovine blood was perfused through polysulfone membranes at blood and ultrafiltrate flow rates of 100 and 20 ml

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Ikechukwu, Ijeoma, Bethrand Nwankwojike, and Ibiam Abam. "Economic viability assessment of Bambara nut milling-sieving machine." Poljoprivredna tehnika 47, no. 1 (2022): 79–88. http://dx.doi.org/10.5937/poljteh2201090i.

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A novel continuous process milling-sieving machine specially developed recently for processing Bambara nut to flour was assessed for economic viability in this study with multi-criteria cost-benefit analysis measures in order to advance its acceptance and commercialization. This involved determination and assessment of its payback period, accounting rate of return, net present value and benefit cost ratio using the prevailing economic indicators/market prices of materials in Abia State of Nigeria between January and December, 2020. The decision measures applied include that the payback period

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9

Bartley, Paul C., Brian E. Jackson, and William C. Fonteno. "Effect of particle length to width ratio on sieving accuracy and precision." Powder Technology 355 (October 2019): 349–54. http://dx.doi.org/10.1016/j.powtec.2019.07.016.

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10

Chen, Zhiquan, Xin Tong, and Zhanfu Li. "Numerical Investigation on the Sieving Performance of Elliptical Vibrating Screen." Processes 8, no. 9 (2020): 1151. http://dx.doi.org/10.3390/pr8091151.

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Screening techniques have been widely deployed in industrial production for the size-separation of granular materials such as coal. The elliptical vibrating screen has been regarded as an excellent screening apparatus in terms of its high screening efficiency and large processing capacity. However, its fundamental mechanisms and operational principles remain poorly understood. In this paper, the sieving process of an elliptical vibrating screen was numerically simulated based on the discrete element method (DEM), and an approach coupling the DEM and the finite element method (DEM–FEM) was intr

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Sarkozy, Daniel, and Andras Guttman. "Capillary Sodium Dodecyl Sulfate Agarose Gel Electrophoresis of Proteins." Gels 8, no. 2 (2022): 67. http://dx.doi.org/10.3390/gels8020067.

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Capillary sodium dodecyl sulfate gel electrophoresis has long been used for the analysis of proteins, mostly either with entangled polymer networks or translationally cross-linked gels. In this paper capillary agarose gel electrophoresis is introduced for the separation of low molecular weight immunoglobulin subunits. The light (LC~24 kDa) and heavy (HC~50 kDa) chain fragments of a monoclonal antibody therapeutic drug were used to optimize the sieving matrix composition of the agarose/Tris-borate-EDTA (TBE) systems. The agarose and boric acid contents were systematically varied between 0.2–1.0

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Waniewski, Jacek, Olof Heimbürger, Min Sun Park, Andrzej Werynski, and Bengt Lindholm. "Bidirectional Solute Transport in Peritoneal Dialysis." Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 14, no. 4 (1994): 327–37. http://dx.doi.org/10.1177/089686089401400404.

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Objective Three transport components are involved in solute transport in peritoneal dialysis: diffusion, convective transport, and peritoneal reabsorption of dialysate (fluid and solutes). The relative impact of these components on measurable transport characteristics (dialysateto-plasma concentration ratio, diffusive mass transport coefficient, unidirectional clearances) may depend on the direction of solute transport, that is, from blood to dialysate or vice versa. The application of the bidirectional characteristics for the assessment of fluid and solute transport in peritoneal dialysis is

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13

Hossain, Mustaque, James Koelliker, Hisham Ibrahim, and John Wojakowski. "Kansas Water-Cement Ratio Meter: Preliminary Results." Transportation Research Record: Journal of the Transportation Research Board 1532, no. 1 (1996): 73–79. http://dx.doi.org/10.1177/0361198196153200111.

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The water-cement ratio of fresh concrete is recognized as the one factor that affects the strength and durability of an adequately compacted concrete mix. Although water-cement ratio is the predominant factor affecting strength of hardened concrete, currently no widely used, reliable method is available for measuring water-cement ratio in the field. A prototype device has been developed to measure the water-cement ratio of a plastic concrete mix. The method is based on the measurement of turbidity of water-cement slurry separated out of a concrete mixture by pressure sieving. Consistent result

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14

Tuan, Chiu-Ching, and Yi-Chao Wu. "Triangular Energy-Saving Cache-Based Routing Protocol by Energy Sieving." International Journal of Distributed Sensor Networks 8, no. 1 (2011): 602159. http://dx.doi.org/10.1155/2012/602159.

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In wireless ad hoc networks, designing an energy-efficient routing protocol is a major issue since nodes are energy limited. To address energy issue, we proposed a triangular energy-saving cached-based routing protocol by energy sieving (TESCES). TESCES offered a grid leader election by energy sieving (GLEES), a cache-based grid leader maintenance (CGLM), and a triangular energy-saving routing discovery (TESRD). In GLEES, only few nodes join in grid leader election to be elected as a grid leader. New grid leader is elected directly by cache without sending extra control packets in CGLM. TESRD

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15

Milia, Vincenzo La, Gianfranca Cabiddu, Giovambattista Virga, et al. "Peritoneal Equilibration Test Reference Values Using A 3.86% Glucose Solution during the First Year of Peritoneal Dialysis: Results of a Multicenter Study of a Large Patient Population." Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 37, no. 6 (2017): 633–38. http://dx.doi.org/10.3747/pdi.2017.00004.

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BackgroundThe original peritoneal equilibration test (PET) was used to classify peritoneal dialysis (PD) patients using a 2.27% glucose solution. It has since been suggested that a 3.86% glucose solution be used because this provides better information about ultrafiltration (UF) capacity and the sodium (Na) sieving of the peritoneal membrane.ObjectiveThe aim of this study was to determine reference values for a PET using a 3.86% glucose solution (PET-3.86%).MethodsWe evaluated the PET-3.86% in a large population of incident PD patients attending 27 Italian dialysis centers.ResultsWe evaluated

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16

Stähly, Severin, Heide Friedrich, and Martin Detert. "Size Ratio of Fluvial Grains’ Intermediate Axes Assessed by Image Processing and Square-Hole Sieving." Journal of Hydraulic Engineering 143, no. 6 (2017): 06017005. http://dx.doi.org/10.1061/(asce)hy.1943-7900.0001286.

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17

Monquil, Margje C. J., Alexander L. T. Imholz, Dirk G. Struijk, and Raymond T. Krediet. "Does Impaired Transcellular Water Transport Contribute to Net Ultrafiltration Failure during CAPD?" Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 15, no. 1 (1995): 42–48. http://dx.doi.org/10.1177/089686089501500109.

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Objectives To assess the contribution of transcellular water transport in net ultrafiltration failure during continuous ambulatory peritoneal dialysis (CAPD). Design Retrospective. Setting Renal Unit, Academic Medical Center, Amsterdam. Patients One group of 6 patients with clinical severe ultrafiltration loss and a group of 10 stable CAPD patients without ultrafiltration problems. Intervention In all patients, two peritoneal permeability tests were done within one week, using glucose 1.36% dialysate on one day and glucose 3.86% on the other day. Dextran 70 was used as a volume marker. Results

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18

Li, Xiao Ke, Shan Zhao, Li Sun, and Shun Bo Zhao. "Impermeability of Wet-Sieving Fine Aggregate Concrete Made from Ordinary Concrete." Advanced Materials Research 201-203 (February 2011): 2883–86. http://dx.doi.org/10.4028/www.scientific.net/amr.201-203.2883.

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The research is part of wet-sieving concrete technique for building thermal insulated reinforced concrete composite wall. The fine aggregate concrete is made from ordinary concrete passing sieve with square mash of 15 mm for casting surface concrete layer of the wall, the recomposed concrete is made of residual concrete stayed on sieve and ordinary concrete for casting reinforced concrete structural wall. The impermeability of fine aggregate concrete and recomposed concrete are measured by water permeation method and chloride-ion permeation method, the relative permeability and chloride-ion di

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19

Parker, R. E., N. E. Wickersham, R. J. Roselli, T. R. Harris, and K. L. Brigham. "Effects of hypoproteinemia on lung microvascular protein sieving and lung lymph flow." Journal of Applied Physiology 60, no. 4 (1986): 1293–99. http://dx.doi.org/10.1152/jappl.1986.60.4.1293.

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Experiments were conducted on five chronically instrumented unanesthetized sheep to determine the effects of sustained hypoproteinemia on lung fluid balance. Plasma total protein concentration was decreased from a control value of 6.17 +/- 0.019 to 3.97 +/- 0.17 g/dl (mean +/- SE) by acute plasmapheresis and maintained at this level by chronic thoracic lymph duct drainage. We measured pulmonary arterial pressure, left atrial pressure, aortic pressure, central venous pressure, cardiac output, oncotic pressures of both plasma and lung lymph, lung lymph flow rate, and lung lymph-to-plasma ratio o

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Ebert, William L., Charles L. Crawford, and Carol M. Jantzen. "Uncertainty in the Surface Area of Crushed Glass in Rate Calculations." MRS Proceedings 1744 (2015): 145–52. http://dx.doi.org/10.1557/opl.2015.331.

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ABSTRACTSeries of 7-day Product Consistency Tests (PCTs) were conducted with ARM-1 glass using the -100+200 mesh size fraction and several sub-fractions to measure the sensitivity of the test response to the distribution of particle sizes. Separate samples were prepared for testing by dry sieving and wet sieving, and the particle size distributions and PCT responses were measured for each fraction. Triplicate tests were conducted at 90 °C using a water/glass mass ratio of 10.0 with each size fraction. Test results are evaluated regarding the sensitivity of the test response to the particle siz

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Oliver, J. D., J. L. Simons, J. L. Troy, A. P. Provoost, B. M. Brenner, and W. M. Deen. "Proteinuria and impaired glomerular permselectivity in uninephrectomized fawn-hooded rats." American Journal of Physiology-Renal Physiology 267, no. 6 (1994): F917—F925. http://dx.doi.org/10.1152/ajprenal.1994.267.6.f917.

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Previous studies of glomerular permselectivity have indicated that both size selectivity and charge selectivity changes play a role in the pathogenesis of proteinuria. In this study, we measured Ficoll sieving coefficients, hemodynamic parameters, and urinary protein excretion rates in the FHH strain of fawn-hooded rats. These animals spontaneously develop systemic and glomerular hypertension, proteinuria, and focal and segmental glomerulosclerosis at a relatively young age. Three groups of FHH rats were studied: two-kidney controls (2K), untreated uninephrectomized rats (CON-NX), and uninephr

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Edwards, Aurélie, Barbara S. Daniels, and William M. Deen. "Ultrastructural model for size selectivity in glomerular filtration." American Journal of Physiology-Renal Physiology 276, no. 6 (1999): F892—F902. http://dx.doi.org/10.1152/ajprenal.1999.276.6.f892.

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A theoretical model was developed to relate the size selectivity of the glomerular barrier to the structural characteristics of the individual layers of the capillary wall. Thicknesses and other linear dimensions were evaluated, where possible, from previous electron microscopic studies. The glomerular basement membrane (GBM) was represented as a homogeneous material characterized by a Darcy permeability and by size-dependent hindrance coefficients for diffusion and convection, respectively; those coefficients were estimated from recent data obtained with isolated rat GBM. The filtration slit

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Bohling, Daniel, Andrzej Cwirzen, and Karin Habermehl-Cwirzen. "Bond Strength between Glass Fiber Fabrics and Low Water-to-Binder Ratio Mortar: Experimental Characterization." Advances in Civil Engineering 2018 (September 2, 2018): 1–10. http://dx.doi.org/10.1155/2018/8197039.

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Full utilization of mechanical properties of glass fiber fabric-reinforced cement composites is very limited due to a low bond strength between fibers and the binder matrix. An experimental setup was developed and evaluated to correlate the mortar penetration depth with several key parameters. The studied parameters included fresh mortar properties, compressive and flexural strengths of mortar, the fabric/mortar bond strength, fabric pullout strength, and a single-lap shear strength. Results showed that an average penetration of mortar did not exceed 100 µm even at a higher water-to-binder rat

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Baydakova, N. V., V. A. Nazarenko, and S. A. Kryukov. "ON THE PRINCIPLES OF CONTROL OF THE PROCESS PART OF THE AIRBORNE CLASSIFIER DURING OPERATIONS OF SPECIAL-PURPOSE ABRASIVE MATERIALS." Spravochnik. Inzhenernyi zhurnal, no. 314 (May 2023): 3–7. http://dx.doi.org/10.14489/hb.2023.05.pp.003-007.

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The article considers the methodical methods of practical use of a vibrodynamic classifier for sieving various abrasive materials, sets and solves the task of providing optimal tuning parameters of the electromechanical part of the vibration classifier to obtain the highest grade of abrasive grain with a high content of the main fraction and a given shape of abrasive particles. The distribution of particles of the material separated by size along the perimeter of the vibration rod was studied, depending on its parameters. It has been shown that the yield of products depends on the ratio of fra

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Sumarjono, Erry, M. Sri Prasetyo Budi, and Untung Sukamto. "LIMITTING REDUCTION RATIO SEBAGAI BATAS REDUKSI UKURAN MATERIAL PADA SINGLE TOGGLE JAW CRUSHER." KURVATEK 10, no. 1 (2025): 91–98. https://doi.org/10.33579/krvtk.v10i1.5723.

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Reduction Ratio (RR) dapat digunakan untuk memperkirakan ukuran produk yang dapat dihasilkan oleh suatu alat peremuk. Reduction ratio tersebut dapat dihitung dengan beberapa cara. Salah satu perhitungan yang dapat dilakukan adalah menghitung Limitting Reduction Ratio (LRR). Limitting Reduction Ratio merupakan perbandingan antara ukuran umpan terbesar dan ukuran produk terbesar. Penelitian ini bertujuan untuk menghitung Limitting Reduction Ratio pada operasi peremukan batu lempung sebanyak 30 sampel, yang dilakukan dalam skala laboratorium, dengan menggunakan alat peremuk tipe single toggle jaw

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Du, Linhan, Xiaoyu Hu, Diannan Lu, and Zheng Liu. "Ionic Transport Triggered by Asymmetric Illumination on 2D Nano-Membrane." Molecules 26, no. 23 (2021): 7078. http://dx.doi.org/10.3390/molecules26237078.

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Ionic transport and ion sieving are important in the field of separation science and engineering. Based on the rapid development of nanomaterials and nano-devices, more and more phenomena occur on the nanoscale devices in the field of thermology, optics, mechanics, etc. Recently, we experimentally observed a novel ion transport phenomenon in nanostructured graphene oxide membrane (GOM) under asymmetric illumination. We first build a light-induced carriers’ diffusion model based on our previous experimental results. This model can reveal the light-induced ion transport mechanism and predict the

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Lu, Mei Jun, Su Yang, Xue Zhen Feng, and Shun Bo Zhao. "Experimental Study on Thermal Conductivity of Concrete for Building Reinforced Concrete Composite Wall." Applied Mechanics and Materials 438-439 (October 2013): 329–32. http://dx.doi.org/10.4028/www.scientific.net/amm.438-439.329.

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In order to determine the thermal conductivity of the concrete for building reinforced concrete composite wall, the fine-aggregate concrete for the thermal insulation layer and the composite concrete for the reinforced concrete wall were made from the ordinary concrete by in-situ wet-sieving techniques. The compositions of these three kinds of fresh concrete were determined, which expressed by the volume fraction of crushed stone and the volume ratio of crushed stone to mortar. The thermal conductivity of concrete was measured by the one-dimensional steady heat flow meter. Based on the tests,

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Wang, Ting. "Experiment of Shield Synchronized Grouting Slurry Using Waste Sand in Sand Layer." Applied Mechanics and Materials 638-640 (September 2014): 1600–1605. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.1600.

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when slurry shield drives in fine silty sand layer, the waste sand consists of a large amount of fine silty sand, it will wastes a lot of money if the waste sand is buried.In laboratory, we use the waste sand as the sand source of shield synchronized grouting, studying on the feasibility of the processing method and slurry properties. The results showed that the sieving waste sand in fine silty sand layer can be used as the sand source of shield synchronized grouting, it is a better way to increase the strength of slurry by increasing the ratio of fly ash for the slurry used the waste sand as

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Adriansyah and George A. McMechan. "AVA analysis and interpretation of a carbonate reservoir: northwest Java basin, Indonesia." GEOPHYSICS 66, no. 3 (2001): 744–54. http://dx.doi.org/10.1190/1.1444964.

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A detailed analysis is performed of amplitude variation with angle (AVA) observations in six common‐midpoint gathers with reflection points that are over and beside carbonate reefs in the Parigi Formation in the northwest Java basin. Both empirical analysis and full‐wavefield modeling of the AVA data suggest that the presence of gas affects AVA by reducing the bulk density of the reservoir, decreasing of the overburden [Formula: see text] ratio and by local attenuation caused by gas sieving through the overlying sediments. The slopes of AVA curves for reflections from the top of the Parigi are

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Levanič, Tom, Blaž Cigić, Mateja Germ, et al. "Differences in Ratio of Carbon Stable Isotopes among Barley Grain Milling Fractions with Various Concentrations of Beta-Glucans." Molecules 28, no. 15 (2023): 5738. http://dx.doi.org/10.3390/molecules28155738.

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The grains of three barley varieties were milled and sieved to obtain respective milling fractions with a content of beta-glucans (b-G) from 1.4 to 10.7%. The enriched fraction obtained by the extraction and precipitation contained 24.7% of b-G. The differences between the ratio of stable C carbon isotopes were established. Milling fractions with coarse particles had more beta-glucans and a more negative ratio of δ13C isotope in comparison to the respective intact barley grain. However, the enriched fraction had a less negative isotope ratio. So, it is not expected that the deviation from the

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Fajri, Hidayatul, Fuad Ramadhan, Nuzul Ficky Nuswantoro, et al. "Electrophoretic Deposition (EPD) of Natural Hydroxyapatite Coatings on Titanium Ti-29Nb-13Ta-4.6Zr Substrates for Implant Material." Materials Science Forum 1000 (July 2020): 123–31. http://dx.doi.org/10.4028/www.scientific.net/msf.1000.123.

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This study aims to investigate the effect of the electrophoretic deposition process (EPD) of natural HA (extracted from bovine bones) with various particle size on Ti-29Nb-13Ta-4.6Zr (TNTZ) coating surfaces. HA particles were refined from bovine bone powders using planetary ball mill and then sieving to separate the particle based on its size. The maximum size according to sieving mesh size is #25 µm, #63 µm and #125 µm. The coating process was conducted by using EPD apparatus with voltage and time process 10V and 5 minutes, respectively, for each sample. The coating layer morphology was obser

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Bangguna, David. "Pengaruh Pemeraman Terhadap Stabilisasi Tanah Laterit Campuran Zeolit Aktivasi Waterglas Terhadap Nilai California Bearing Ratio." Potensi: Jurnal Sipil Politeknik 25, no. 1 (2023): 15–19. http://dx.doi.org/10.35313/potensi.v25i1.4576.

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Soil is the base of construction, both building construction and road construction. One of the poor soil conditions is determined by the amount of soil bearing capacity (CBR) value. The objective of this study is to obtain the effect of curing time on the CBR value of a zeolite-stabilized laterite soil activated by waterglass. This test is guided by ASTM for each test. The laterite soil dominated by iron oxidation in brownish red FeO. The stabilizing material zeolite contains crystalline minerals of alumina silicate SiO2 having four main functions, namely ion exchanger, adsorption filter, cata

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Öberg, Carl M., and Bengt Rippe. "A distributed two-pore model: theoretical implications and practical application to the glomerular sieving of Ficoll." American Journal of Physiology-Renal Physiology 306, no. 8 (2014): F844—F854. http://dx.doi.org/10.1152/ajprenal.00366.2013.

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In the present study, an extended two-pore theory is presented where the porous pathways are continuously distributed according to small- and large-pore mean radii and SDs. Experimental glomerular sieving data for Ficoll were analyzed using the model. In addition, several theoretical findings are presented along with analytic solutions to many of the equations used in distributed pore modeling. The results of the data analysis revealed a small-pore population in the glomerular capillary wall with a mean radius of 36.6 Å having a wide arithmetic SD of ∼5 Å and a large-pore radius of 98.6 Å with

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Shen, Shu Li, and Guo Jie Zhao. "The Toll Free Expressway Policy for Part of Vehicles on Major Holidays Choice of Compensation Basis." Applied Mechanics and Materials 409-410 (September 2013): 1325–29. http://dx.doi.org/10.4028/www.scientific.net/amm.409-410.1325.

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In 2012, for the first time China implemented the toll free expressway policy for part of vehicles on major holidays. However, there is no universal compensation mechanism thereafter. How to choose the compensation basis is the core issue of establishing such a mechanism. A proper solution is to choose suitable data of listed expressway companies as the basis. Factors including corporate social responsibility and compensation theory being taken into account, listed companies with an over 95% ratio of toll operations are sifted out, and part of companies with low efficiency are wiped out by DEA

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Tsang, Alpha Chi Him, Shaobo Ouyang, Yang Lv, Chi Chung Lee, Chi-Wing Tsang, and Xiao-Ying Lu. "Full Tailored Metal Content NCM Regeneration from Spent Lithium-Ion Battery Mixture Under Mild Condition." Electrochem 5, no. 4 (2024): 546–59. https://doi.org/10.3390/electrochem5040035.

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Mild conditioned, second-life ternary nickel–cobalt–manganese (NCM) black powder regeneration from spent lithium-ion batteries’ (LIBs) black powder mixture was demonstrated after mild conditioned p-toluenesulphuric acid (PTA)-assisted wet leaching. The NCM ratio was tailored to several combinations (333, 523, 532, and 622) by adding a suitable amount of metal (Ni, Co, Mn)-sulphate salt to the leachate. Regenerated NCM was obtained by co-precipitation with sodium hydroxide pellets and ammonia pH buffering solution, followed by lithium (Li) sintering under ambient air and size sieving. The obtai

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Tang, Lin, Qiang Tang, Aolai Zhong, and Hanjie Li. "Prediction of Pore Size Characteristics of Needle-Punched Nonwoven Geotextiles Subjected to Uniaxial Tensile Strains." Advances in Civil Engineering 2020 (June 23, 2020): 1–12. http://dx.doi.org/10.1155/2020/8839519.

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A modified theoretical model has been proposed to predict the pore size characteristics of nonwoven geotextiles under certain uniaxial tensile strains, considering the difference between the out-of-plane Poisson’s ratio and the in-plane Poisson’s ratio of geotextiles. The pore size distributions (PSDs) and O95 subjected to different levels of uniaxial tensile strains in two needle-punched nonwoven geotextiles have been investigated by the dry sieving test. The variation of the fibre orientation with tensile strains and the corresponding effect on pore sizes has been evaluated by image analysis

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Li, Zhe, Shihao Yan, Lulu Liu, and Jia Yang. "Investigation into Creep Characteristics and Model of Recycled Construction and Demolition Waste Used in Embankment Filler." Sustainability 12, no. 5 (2020): 1924. http://dx.doi.org/10.3390/su12051924.

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The creep deformation of recycled construction and demolition waste (CDW) filler is an important factor affecting road performance. In this paper, a series of laboratory tests, including a compaction test, sieving test, California bearing ratio (CBR) test, creep test and unloading test are conducted on CDW filler. The engineering properties of different ratios of CDW mixture are systematically analyzed, the CBR value of CDW filler meets the requirements of an embankment. The creep type of CDW filler under a test load is stable creep, the results of the creep characteristics are analyzed from a

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Mardmomen, Seyednavid, Hung-Liang (Roger) Chen, and Guadalupe Leon. "Revised Method for Rapid Determination of On-Site Water–Cement Ratio using Microwave Oven." Transportation Research Record: Journal of the Transportation Research Board 2673, no. 8 (2019): 1–10. http://dx.doi.org/10.1177/0361198119849408.

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The water–cement ratio (w/c) of delivered concrete is one of the most important parameters of the material’s quality. In this study, the AASHTO T318-15 guideline was adopted to estimate the water content of fresh concrete mixes and was revised for better precision. The additional step required sieving out the coarse aggregate after drying the sample in a microwave oven, and using it in the calculation of the absorbed water and cementitious material content. The cementitious content was assumed to be proportional to the mix design ratios. Several laboratory batches, as well as on-site water–cem

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Eze, Emeka Lazarus, Kingsley Onyekwere Okengwu, and Geoffrey Chijioke Soronnadi-Ononiwu. "Paleoenvironment and Palynozonation of Osere-004 Well sequences, Niger Delta. Nigeria." Paleoenvironment and Palynozonation of Osere-004 Well sequences, Niger Delta. Nigeria 8, no. 11 (2024): 9. https://doi.org/10.5281/zenodo.10638273.

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Paleoenvironmental interpretation and palynozonation was carried out using fifty ditch cutting samples ranging from 7020 ft – 10020 ft, with a total thickness of 3000 m from Osere-004 Well. The lithology of the ditch cuttings was described and analysed using wet-sieving technique. Palynological sample preparation was also carried out on the ditch cuttings following the non-mineral acid method and was analysed using transmitting light microscope. The lithologic description  and wet-sieve analysis generated the lithology and sand- shale ratio/gradational plot. The palynological analys

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Patrick, Juan, Agus Budi Prasetyo, Badrul Munir, Ahmad Maksum, and Johny Wahyuadi Soedarsono. "The effect of addition of sodium sulphate (Na2SO4) to nickel slag pyrometallurgical process with temperature and additives ratio as variables." E3S Web of Conferences 67 (2018): 03053. http://dx.doi.org/10.1051/e3sconf/20186703053.

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Nickel industry is one of the most strategic industries because its widely used. Nickel slag as a by-product of nickel processing presents the potential for improving process efficiency. In this study aim to determine the effect of the addition of sodium sulfate additives and also the temperature in the reduction process of nickel slag. The research was preceded by preparation of nickel slag samples with crushing and sieving up to 200 mesh. The nickel slag is then reduced at 800°C, 900°C and 1000°C temperature without adding sodium sulfate and by adding sodium sulfate with 1 hour holding time.

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He, Ai, Zhiwei Jiang, Yue Wu, et al. "A smart and responsive crystalline porous organic cage membrane with switchable pore apertures for graded molecular sieving." Nature Materials 21, no. 4 (2022): 463–70. http://dx.doi.org/10.1038/s41563-021-01168-z.

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AbstractMembranes with high selectivity offer an attractive route to molecular separations, where technologies such as distillation and chromatography are energy intensive. However, it remains challenging to fine tune the structure and porosity in membranes, particularly to separate molecules of similar size. Here, we report a process for producing composite membranes that comprise crystalline porous organic cage films fabricated by interfacial synthesis on a polyacrylonitrile support. These membranes exhibit ultrafast solvent permeance and high rejection of organic dyes with molecular weights

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Amera, A., A. M. A. Abudalazez, Rashid Ismail, et al. "Synthesis and characterization of porous biphasic calcium phosphate scaffold from different porogens for possible bone tissue engineering applications." Science of Sintering 43, no. 2 (2011): 183–92. http://dx.doi.org/10.2298/sos1102183a.

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By using the wet precipitation method, Biphasic calcium phosphate granules were synthesized with Ca/P ratio1.52 and controlled porosity, pore size distribution, and granule size. Microporosity was then obtained by adjusting sintering temperature while macroporosity was prepared by adding 1:3 wt% ratio of two normally used porogens (naphthalene and sugar) and 2 newly introduced porogens (sago and lentil). Samples from each ratio were pressed into pellets and were fired at 500?C for 2 hours with 0.5?C/minute heating rate (for removal of porogens) and further sintered at 850?C for 2 hours with 5?

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Tkachivskyi, Dmytro, Kristjan Juhani, Andrei Surženkov, et al. "Production of Thermal Spray Cr₃C₂-Ni Powders by Mechanically Activated Synthesis." Key Engineering Materials 799 (April 2019): 31–36. http://dx.doi.org/10.4028/www.scientific.net/kem.799.31.

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The aim of this research was to optimize the mechanically activated synthesis (MAS) technology of the Cr3C2-Ni powder intended for thermal spraying. The MAS production route included ball milling for 72 h (ball-to-powder ratio 20:1) and sintering under 1075 °C in vacuum for 4 h. Sintered compact was crushed, classified by sieving to obtain the fraction suitable for thermal spraying (20–45 μm). The morphology and the phase composition of the powder were analyzed by a scanning electron microscope (SEM) and X-ray diffraction (XRD). The optimal Cr:C ratio found was 7:1. The powder had an equiaxial

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Nambikkattu, Jenny, Anoopa Ann Thomas, Noel Jacob Kaleekkal, Thanigaivelan Arumugham, Shadi W. Hasan, and Saravanamuthu Vigneswaran. "ZnO/PDA/Mesoporous Cellular Foam Functionalized Thin-Film Nanocomposite Membrane towards Enhanced Nanofiltration Performance." Membranes 13, no. 5 (2023): 486. http://dx.doi.org/10.3390/membranes13050486.

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Thin-film nanocomposite (TFN) membranes are the third-generation membranes being explored for nanofiltration applications. Incorporating nanofillers in the dense selective polyamide (PA) layer improves the permeability–selectivity trade-off. The mesoporous cellular foam composite Zn-PDA-MCF-5 was used as a hydrophilic filler in this study to prepare TFN membranes. Incorporating the nanomaterial onto the TFN-2 membrane resulted in a decrease in the water contact angle and suppression of the membrane surface roughness. The pure water permeability of 6.40 LMH bar−1 at the optimal loading ratio of

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Zhang, Wei, Rusheng Hao, Zhijun Men, Jingjing He, Yong Zhang, and Wei Hu. "Optimizing Recycled Tunnel Boring Machine (TBM)-Excavated Materials as Aggregates in Shotcrete Mix Design." Buildings 15, no. 9 (2025): 1483. https://doi.org/10.3390/buildings15091483.

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Tunnel Boring Machine (TBM) excavation materials were recycled by sieving and separating particles into sizes 5–10 mm (coarse aggregates) and below 5 mm (manufactured sand) to explore their potential as aggregates in shotcrete production, with the aim of reducing environmental harm from waste disposal. Mix proportion experiments were conducted to evaluate the mechanical properties—including failure patterns, compressive strength, flexural strength, and deflection—of the shotcrete specimens through cubic axial compression and four-point bending tests; furthermore, rebound tests were conducted o

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Liu, Yi, Weili Qiang, Taotao Ji, et al. "Uniform hierarchical MFI nanosheets prepared via anisotropic etching for solution-based sub–100-nm-thick oriented MFI layer fabrication." Science Advances 6, no. 7 (2020): eaay5993. http://dx.doi.org/10.1126/sciadv.aay5993.

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Zeolite nanosheets have shown unprecedented opportunities for a wide range of applications, yet developing facile methods for fabrication of uniform zeolite nanosheets remains a great challenge. Here, a facile approach involving anisotropic etching with an aqueous solution of tetrapropylammonium hydroxide (TPAOH) was developed for preparing uniform high–aspect ratio hierarchical MFI nanosheets. In addition, the mechanism associated with the formation of MFI nanosheets was proposed. In the next step, a dynamic air-liquid interface–assisted self-assembly method and single-mode microwave heating

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Zhou, Hanfeng, Przemyslaw Galek, Julia Grothe, and Stefan Kaskel. "Ions Selectively Intrigued Ionologic Devices for Logic Operation." ECS Meeting Abstracts MA2024-01, no. 57 (2024): 3013. http://dx.doi.org/10.1149/ma2024-01573013mtgabs.

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Capacitive analogues of semiconductor diodes (CAPodes) present a new avenue for energy-efficient and nature-inspired next-generation computing devices. Here, we disclose the generalized concept for bias-direction-adjustable n- and p-CAPodes based on selective ion sieving. Controllable-unidirectional ion flux is realized by blocking electrolyte ions from entering sub-nanometer pores. The resulting CAPodes exhibit charge-storage characteristics with a high rectification ratio (96.29 %). The enhancement of capacitance is attributed to the high surface area and porosity of an omnisorbing carbon as

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Oliver, J. D., S. Anderson, J. L. Troy, B. M. Brenner, and W. H. Deen. "Determination of glomerular size-selectivity in the normal rat with Ficoll." Journal of the American Society of Nephrology 3, no. 2 (1992): 214–28. http://dx.doi.org/10.1681/asn.v32214.

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Diffusion studies in vitro indicate that Ficoll behaves more like an ideal spherical molecule than does dextran, suggesting that Ficoll would be a better probe of glomerular pore size than the commonly used dextran. To examine the differences between these macromolecules in vivo, the fractional clearances of tritiated Ficoll and dextran were measured over a wide range of molecular sizes (Stokes-Einstein radius, rs, from 19 to 65 A) in normal euvolemic Munich-Wistar rats. Whole-kidney and single-nephron hemodynamic conditions were characterized through a combination of clearance and micropunctu

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Zeng, Chuigang, Changbin Yan, Gaoliu Li, Xiao Xu, Fengwei Yang, and Weilin Su. "Identifying Effective Rock-Breaking Ratio Based on Rock Chip Information for Rock-Breaking Efficiency Evaluation of TBM." Geofluids 2023 (October 25, 2023): 1–14. http://dx.doi.org/10.1155/2023/1576401.

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The rock chip information (shape, size, and particle size distribution) could comprehensively reflect the characteristics of rock mass and rock-breaking efficiency of TBM. This study is aimed at defining a novel index (effective rock-breaking ratio, P r ) to identify the rock-breaking efficiency of TBM based on the rock chip information. To evaluate this approach, a series of field sieving and measuring tests of rock chips was conducted at the water conveyance tunnel construction projects of China. The rock-breaking efficiency evaluation and tunneling parameter improvement of TBM were research

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Tsai, Chao-Jen, Huan-Chih Wang, and Ja-Ling Wu. "Three Techniques for Enhancing Chaos-Based Joint Compression and Encryption Schemes." Entropy 21, no. 1 (2019): 40. http://dx.doi.org/10.3390/e21010040.

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In this work, three techniques for enhancing various chaos-based joint compression and encryption (JCAE) schemes are proposed. They respectively improved the execution time, compression ratio, and estimation accuracy of three different chaos-based JCAE schemes. The first uses auxiliary data structures to significantly accelerate an existing chaos-based JCAE scheme. The second solves the problem of huge multidimensional lookup table overheads by sieving out a small number of important sub-tables. The third increases the accuracy of frequency distribution estimations, used for compressing stream

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