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Journal articles on the topic 'Sieving'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 March 2023

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1

AOKI, Kazumaro, and Hiroki UEDA. "Bucket Sieving." IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E92-A, no. 8 (2009): 1845–50. http://dx.doi.org/10.1587/transfun.e92.a.1845.

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2

Kleinjung, Thorsten. "Quadratic sieving." Mathematics of Computation 85, no. 300 (December 7, 2015): 1861–73. http://dx.doi.org/10.1090/mcom/3058.

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3

Huang, Wen Jin, Ya Yu Huang, Jun Shi, and Shi Chang Han. "Study on How Sieving Parameters of Vibration Screen Influence Sieving Efficiency Based on DEM." Applied Mechanics and Materials 444-445 (October 2013): 1038–41. http://dx.doi.org/10.4028/www.scientific.net/amm.444-445.1038.

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Vibrating screen is the most commonly used sieving machinery, how to improve its sieving performance is a major issue during the design and application. Discrete element method (DEM) was employed here to analyze and simulate the sieving process, and the influence of the various sieving parameters on sieving efficiency were studied. The curve of relationship between the sieving parameters and sieving efficiency was established. Contrasted with traditional methods, DEM has great superiority on the sieving study.

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4

Jin, S., and G. Xue. "Cation-Sieving and Anion-Sieving of Electrosynthesized Polythiophene Film." Journal of Macromolecular Science, Part A 34, no. 3 (March 1997): 503–7. http://dx.doi.org/10.1080/10601329708014976.

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5

Liu, Chuang, Wen Liang Du, Ya Jing Quan, Kai Xing, and Heng Han. "Influence of Sieve Structural Parameters on Sieving of Shelled Buckwheat." Advanced Materials Research 915-916 (April 2014): 978–84. http://dx.doi.org/10.4028/www.scientific.net/amr.915-916.978.

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The problems of high falsesieving rate and low productivity are encountered while sieving shelled buckwheat with traditional round plate sieve. This paper presents a design idea for improving the sieving effect by changing the plate structure. The improved designs consist of a round plate sieve with larger percentage of sieving area than the traditional round plate sieve and a triangular plate sieve with the approximately same geometry as shelled buckwheat grains. Tests are conducted to compare the sieving performance of traditional round plate sieve with the newly designed round plate sieve with different percentage of sieving areas and apertures. Also the traditional round plate sieve is compared with triangle plate sieve with different percentage of sieving areas and apertures. Compared to traditional round plate sieve, the falsesieving rate for newly designed round plate sieve with an aperture isφ4.4mm is reduced by 3.6.A round plate sieve with a percentage of sieving area of59.7%, aperture ofφ4.3mm, is used to sieve the shelled buckwheat of sizeφ4.6~4.7mm.A falsesieving rate of2.3, and non-sieving rate of17.4 are obtained and the sieving effect is found to be the best. For the triangle plate sieve a falsesieving rate of90.2 and non-sieving rate of92.1 are obtained. The triangle plate sieve is found unsuitable for the sieving of shelled buckwheat.

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6

Robertson, Jack M., and William A. Webb. "Sieving with Sums." Mathematical Gazette 75, no. 472 (June 1991): 171. http://dx.doi.org/10.2307/3620246.

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7

Stakėnas, Vilius. "Sieving the Rationals." Lithuanian Mathematical Journal 61, no. 3 (July 2021): 401–12. http://dx.doi.org/10.1007/s10986-021-09535-8.

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8

Chavan, Aniket A., Prathamesh D. Kadam, Sahil S. Lad, Manas M. Mankar, and Sajid Shaikh. "Multipurpose Sieving Machine." International Journal for Research in Applied Science and Engineering Technology 10, no. 3 (March 31, 2022): 2132–38. http://dx.doi.org/10.22214/ijraset.2022.41087.

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Abstract: A sieve is a device for separating wanted elements from unwanted material or for characterizing the particle size distribution of a sample, typically using a woven screen such as a mesh or net. This project focuses in design, fabrication of the mechanical part of machine and the system of the sieve machine. To achieve this project objective, this sieve machine body structure and mechanical system needs to concern some other criteria such as strength, safety and ergonomic design. Depending on their size the individual particles either pass through the sieve mesh or retained on the sieve surface. There are different machines that are being used for sand sieving processes. In our project the process will takes place automatically. Thus, the time consumed during the whole process is reduced. Keywords: Sieving Machine, Sand Sieving Machine, Sieving Machine Fabrication, Automatic Sieving

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9

Davis, Mark E. "Design for sieving." Nature 382, no. 6592 (August 1996): 583–85. http://dx.doi.org/10.1038/382583a0.

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10

Bai, Shi, Thijs Laarhoven, and Damien Stehlé. "Tuple lattice sieving." LMS Journal of Computation and Mathematics 19, A (2016): 146–62. http://dx.doi.org/10.1112/s1461157016000292.

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Lattice sieving is asymptotically the fastest approach for solving the shortest vector problem (SVP) on Euclidean lattices. All known sieving algorithms for solving the SVP require space which (heuristically) grows as $2^{0.2075n+o(n)}$, where $n$ is the lattice dimension. In high dimensions, the memory requirement becomes a limiting factor for running these algorithms, making them uncompetitive with enumeration algorithms, despite their superior asymptotic time complexity.We generalize sieving algorithms to solve SVP with less memory. We consider reductions of tuples of vectors rather than pairs of vectors as existing sieve algorithms do. For triples, we estimate that the space requirement scales as $2^{0.1887n+o(n)}$. The naive algorithm for this triple sieve runs in time $2^{0.5661n+o(n)}$. With appropriate filtering of pairs, we reduce the time complexity to $2^{0.4812n+o(n)}$ while keeping the same space complexity. We further analyze the effects of using larger tuples for reduction, and conjecture how this provides a continuous trade-off between the memory-intensive sieving and the asymptotically slower enumeration.

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11

Rao, Sujit, and Joe Suk. "Dihedral sieving phenomena." Discrete Mathematics 343, no. 6 (June 2020): 111849. http://dx.doi.org/10.1016/j.disc.2020.111849.

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12

Bourgain, Jean, Alex Gamburd, and Peter Sarnak. "Sieving and expanders." Comptes Rendus Mathematique 343, no. 3 (August 2006): 155–59. http://dx.doi.org/10.1016/j.crma.2006.05.023.

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13

Lau, A. H., and N. O. Kronfol. "Determinants of Drug Removal by Continuous Hemofiltration." International Journal of Artificial Organs 17, no. 7 (July 1994): 373–78. http://dx.doi.org/10.1177/039139889401700702.

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Continuous hemofiltration was conducted in vitro to identify parameters that affect drug transport across hemofilter membranes. The removal of seven drugs with different molecular weights and protein binding characteristics was assessed. Sieving coefficients were determined with both blood and saline using polysulfone, polyacrylonitrile and polyamide membranes. Drug sieving coefficients obtained with saline were generally higher than those obtained with blood. Molecular weights of the drugs did not correlate with the magnitude of drug sieving. Sieving coefficients in blood were also predicted from saline data assuming plasma protein binding is responsible for the reduced drug sieving with blood. For drugs that are highly protein bound, protein binding was the primary factor limiting drug sieving. Presence of plasma proteins also had a modest effect on sieving of other drugs. The sieving coefficients obtained with the polyacrylonitrile membrane tend to be different from those obtained with the other hemofilters. Drug-membrane interaction may contribute to the differences in drug transport among the membranes.

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14

Jezsó, Kristian, and Peter Peciar. "Influence of the Selected Sieving Parameters on the Sieving Efficiency of Material MCC Avicel PH102." Strojnícky časopis - Journal of Mechanical Engineering 72, no. 1 (April 1, 2022): 77–88. http://dx.doi.org/10.2478/scjme-2022-0008.

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Abstract Sieving or screening plays a crucial role in the processing of particulate materials. The sieving process is affected by many factors, including the selection of suitable sieving equipment. Several experiments were carried out to examine the influence of three basic sieving parameters on process efficiency. The investigated material was MCC Avicel PH102, which is widely used as an excipient in the pharmaceutical industry. The three mentioned parameters were sample mass, sieving duration, and vibration amplitude. It was necessary to find a suitable method to evaluate screening efficiency.

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15

BLACK, J. M. W., F. A. BARAGAR, and D. S. CHANASYK. "A MATHEMATICAL MODEL TO ESTIMATE AGGREGATE BREAKDOWN DURING SOIL SIEVING IN A MODIFIED RAPD3 ROTARY SIEVE." Canadian Journal of Soil Science 69, no. 4 (November 1, 1989): 817–24. http://dx.doi.org/10.4141/cjss89-082.

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The percentage of soil material > 0.84 mm obtained by dry sieving is commonly used as an index of the wind erodibility of soils. Present sieving procedures do not account for the breakdown of friable aggregates during sieving so that results do not necessarily represent aggregation in the original sample. An equation was fitted to soil sieving data from a modified rapid rotary sieve. It successfully evaluated aggregate attrition during sieving for 397 out of 404 samples representing a wide variety of textures. Good reproducibility of results using the methodology was obtained for 45 paired soil samples. Results obtained employing the new method will relate more closely to field conditions allowing a better estimate of soil erodibility. Key words: Wind erosion, aggregate breakdown, sieving, soil erodibility, modified rapid rotary sieve

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16

Zheng, Nan, Min Luo, Danyang Meng, Diandou Xu, Zhiming Liu, Yang Shao, and Lingling Ma. "Effect of Soil Aggregate Separation Methods on the Occurrence Characteristics of Typical Pollutants." Processes 10, no. 2 (January 24, 2022): 216. http://dx.doi.org/10.3390/pr10020216.

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To study the distribution characteristics of typical pollutants in soil aggregates using different sieving methods, urban and arable soils were collected from Beijing and separated to different sizes by dry and wet sieving methods, to analyze present concentrations of inorganic chlorine and nine typical heavy metals (Cr, Mn, Co, Ni, Cu, Zn, Cd, As, and Pb). Results revealed that the distribution of wet-sieved aggregates was biased towards microaggregates (<250 μm), while the contrary result was found for the dry sieving method. Inorganic chlorine was more likely to be enriched in <53 μm fractions attained by both sieving methods. However, the content of inorganic chlorine in wet-sieved aggregates was significantly lower than in those that were dry sieved, which means the water’s effect on soluble ions was more pronounced. Heavy metals in urban soils were preferentially enriched in microaggregates no matter what kind of sieving method was applied. As for Mn and As found in agricultural soils using the dry sieving method, they were preferentially enriched in the fractions of 1000–2000 μm and 250–1000 μm, while the other seven heavy metals were preferentially enriched in <53 μm fractions, indicating that Mn and As in agricultural soils were easily transferred in aggregates with different particle sizes. Samples with particle sizes <53 μm showed the highest distribution factors for all heavy metals when the wet sieving method was applied. The dry sieving method resulted in a higher mass loading of heavy metals in coarser fractions and lower proportions in finer fractions. Results of a potential ecological risk analysis showed that the ecological risk (Eri) value of Cd found in aggregates by the different sieving methods was significantly different (p < 0.05). The findings suggest that different sieving methods could result in different occurrence patterns of pollutants in the soil aggregates of different land use types.

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17

Zhu, Wei Bing, He Shun Wang, and Lin Dong. "Design and Performance Analysis of Dual Vibrating Motors Self Synchronous Shaker with Balanced Elliptical Motion." Applied Mechanics and Materials 284-287 (January 2013): 677–80. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.677.

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By virtual prototype technology, the kinematic and dynamic characteristic analysis of the sieving box was carried out. The motion path, natural frequencies and mode shapes of the sieving box were calculated, the stress and deformation distribution in every part of the sieving box under rate load were obtained, and the dynamic strength analysis of the sieving box was carried out. The results show that, the structure design of the shaker is reasonable, and its dynamic strength is satisfied.

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18

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 parameters and sieving efficiency was fitted with the method of multielement non-linear regression by Matlab based on simulation data. This paper provide a new method for vibrating screen designing and research of screening theory.

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19

Sateria, Angga, Eko Yudo, Zulfitriyanto Zulfitriyanto, Sugiyarto Sugiyarto, Rina Melati, Bimas E. Saputra, and Ikhya Naufal. "Rancang Bangun Mesin Pengayak Pasir Untuk Meningkatkan Produktivitas Pengayakan Pasir Pada Pekerja Bangunan." Manutech : Jurnal Teknologi Manufaktur 11, no. 01 (July 31, 2019): 8–13. http://dx.doi.org/10.33504/manutech.v11i01.90.

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One of the materials used in the building process is sand particle. Sand with uniform size is generally obtained from manual sifting processes that require a lot of human power and long sieving time, so a sand sieving machine is needed to minimize the use of human power and sieving time. The design is focused on sifting sand manually into sieving using a machine. The design of the machine uses design software to create a picture of the arrangement and working drawings of the components of the sand sieving machine. Based on the results of the trials that have been carried out, the machine can sift 5 kg of sand for 1.02 minutes and for 10 kg of sand can be sifted for 1.30 minutes.

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20

Holowinsky, Roman. "Sieving for mass equidistribution." Annals of Mathematics 172, no. 2 (2010): 1499. http://dx.doi.org/10.4007/annals.2010.172.1499.

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21

Reiner, Victor, Dennis Stanton, and Dennis White. "WHAT IS...Cyclic Sieving?" Notices of the American Mathematical Society 61, no. 02 (February 1, 2014): 1. http://dx.doi.org/10.1090/noti1084.

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22

Wolfenden, A., and AC Carter. "An Experimental Sieving Machine." Journal of Testing and Evaluation 15, no. 2 (1987): 87. http://dx.doi.org/10.1520/jte10987j.

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23

Reiner, V., D. Stanton, and D. White. "The cyclic sieving phenomenon." Journal of Combinatorial Theory, Series A 108, no. 1 (October 2004): 17–50. http://dx.doi.org/10.1016/j.jcta.2004.04.009.

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24

Flassenberg, Ralf, and Sachar Paulus. "Sieving in Function Fields." Experimental Mathematics 8, no. 4 (January 1999): 339–49. http://dx.doi.org/10.1080/10586458.1999.10504623.

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25

Bangham, J. Andrew. "Data-sieving hydrophobicity plots." Analytical Biochemistry 174, no. 1 (October 1988): 142–45. http://dx.doi.org/10.1016/0003-2697(88)90528-3.

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26

Rusthoven, Esther, Raymond T. Krediet, Hans L. Willems, Leo A. Monnens, and Cornelis H. Schröder. "Sodium Sieving in Children." Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 25, no. 3_suppl (February 2005): 141–42. http://dx.doi.org/10.1177/089686080502503s37.

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Sodium sieving is a consequence of dissociation between the amount of water and sodium transported over the peritoneal membrane. This dissociation occurs in the presence of aquaporin-mediated water transport. Sieving of sodium can be used as a rough measure for aquaporin-mediated water transport. Icodextrin contains glucose polymers, inducing ultrafiltration by colloid osmosis. Therefore, aquaporins play a minor role in ultrafiltration, which is confirmed by the absence of sodium sieving. Icodextrin is very suitable for the daytime dwell in children on a nightly intermittent peritoneal dialysis regimen. Ultrafiltration obtained with icodextrin is similar to ultrafiltration obtained with 3.86% glucose after a 12-hour dwell. When using icodextrin in children, it is also confirmed by the absence of sodium sieving that the aquaporins play a minor role in ultrafiltration.

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27

Knierim, K. D., and E. A. Mason. "Heteroporous sieving membranes: Rigorous bounds on pore-size distributions and sieving curves." Journal of Membrane Science 42, no. 1-2 (March 1989): 87–107. http://dx.doi.org/10.1016/s0376-7388(00)82367-4.

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28

Zhao, Zhangfeng, Hejia Zhu, Guoda Chen, Jiang Zhong, and Lun Chen. "Analysis of Influence Factors on the Sieving Efficiency in Tea Vibration Sieving." Agricultural Research 8, no. 2 (September 6, 2018): 279–86. http://dx.doi.org/10.1007/s40003-018-0381-z.

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29

Ambaa, Yosua, and Hendri P. Perangin-Angin. "PEMANFAATAN AGREGAT KASAR PT. PULAU LEMON SEBAGAI BAHAN BETON PADA JEMBATAN WITO DAN TALUD WEDONI KABUPATEN MANOKWARI PROVINSI PAPUA BARAT." INTAN Jurnal Penelitian Tambang 4, no. 2 (April 1, 2022): 110–15. http://dx.doi.org/10.56139/intan.v4i2.92.

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PT. Pulau Lemon is one of the companies engaged in mining operation, with gravel as its mining material. Therefore, to anticipate the aggregate increase in material demand from the company, it is necessary to carry out a sieve analysis in order to produce the planned size (fraction) according to the needs of aggregate utilization. Based on the results of data processing, the highest sieving efficiency of sifting of coarse aggregate at Wito Bridge is found in sieve number 1, with the percentages of 0.61%. the smallest sieving efficiency is found in sieve number 2 and 1½, which is 0.00%. For the fine aggregate sieving efficiency at Talud Wedoni, the largest sieving efficiency is found in sieve number 1, with the percentages of 0.53%, while the smallest efficiency is in sieving efficiency with sieve number 2 and 1½, which is 0.00%. Moreover, the largest sieving efficiency at Wito Bridge is found in sieve number 4, which is 39.34%, while the smallest efficiency is found in sieve number 100 at 0.01%. The largest sieving efficiency at Talud Wedoni is found in the sieve number 4 at 12.45%, while the smallest efficiency is found in sieve number 100, with the percentages of 0.04%.

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30

Rue, Dionisia, Irrine Budi Sulistiawati, and Ni Putu Agustini. "Perancangan Prototype Mesin Pengayak Pasir Semi Otomatis Menggunakan Photovoltaic." Jurnal JEETech 2, no. 1 (May 24, 2021): 25–33. http://dx.doi.org/10.48056/jeetech.v2i1.152.

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The sand sieving system is generally still done manually which requires full human power for the sieving process. This is quite time consuming and the resulting fine sand mass is far from what is required for a construction project. Therefore the author made the idea of designing a sand sieving machine that can be applied anywhere. This machine uses a driving system of a Brushless Direct Current electric motor with a capacity of 350W as the driving motor. Brushless Direct Current Motor is used because it has the advantage of a large starting torque, higher speed because it does not use a brush. As a source of electricity, new renewable energy solar panels with a capacity of 400Wp are used which are more environmentally friendly and efficient. This machine works when the solar panels supply a power source to the driving motor and then transmitted by the chain and gear to the sieve tube for the sieving process. This machine has a faster sand sieving process than manual sieving and the type of motor used is more efficient.

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31

van den Oever, Huub L. A., Marieke Zeeman, Polina Nassikovker, Carmen Bles, Fred A. L. van Steveninck, Arthur R. de Meijer, Arriette Kruisdijk-Gerritsen, and Maurits Arbouw. "In vivo Elimination of Clonidine by Continuous Venovenous Hemofiltration in Critically Ill Patients." Blood Purification 49, no. 5 (2020): 622–26. http://dx.doi.org/10.1159/000505610.

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Background: Clonidine is an α2-agonist that is commonly used for sedation in the intensive care unit. When patients are on continuous venovenous hemofiltration (CVVH) in the presence of kidney dysfunction, the sieving coefficient of clonidine is required to estimate how much drug is removed by CVVH. In the present study, we measured the sieving coefficient of clonidine in critically ill, ventilated patients receiving CVVH. Methods: A total of 20 samples of plasma and ultrafiltrate of 3 patients on CVVH, using a standard 1.5 m2 polyacrylonitrile AN69 membrane, during continuous clonidine infusion were collected. After correction for the effect of predilution, we calculated the sieving coefficient for clonidine. Results: The mean sieving coefficient of clonidine was 0.52 (SD 0.097). Conclusion: Using a polyacrylonitrile AN69 membrane in a CVVH machine, the in vivo sieving coefficient of clonidine was 0.52.

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32

Adedipe J.O, Aderemi A.M, Oyewole O.O, Abegunrin, O.O, Olatunji B.T, and Afolabi R.T. "Performance Evaluation of a Triple Layer Electric Sieving Machine (TLESM)." International Journal of Engineering and Management Research 11, no. 2 (April 30, 2021): 178–83. http://dx.doi.org/10.31033/ijemr.11.2.25.

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A multi-layer sieving machine is of multiplayer and highly efficient sieving machine that retains particles based on the difference in size. This study was carried out to evaluate the performance of a multi-layer electric sieving machine. The performance test of the machine was carried out in the Agricultural department farm of the Federal College of Forestry, Jericho Ibadan. The electrical sieving machine was used to carry out separation operations on a mixture of food crop materials at varying speeds. The machine passed the test of workability; it was able to perform the specific function of sieving and separating food materials of varying sizes. Mixed food materials were poured in the first layer of the mesh assembly and sieved. The time to completely separate the mixture into the three different layers was recorded and the respective weight of each layer was finally measured. Layer 1 had a mean weight gain of 0.42kg; layer 2 had a mean weight gain of 0.14 while layer 3 had a mean weight loss of 0.56kg when sieving was done for 5 minutes; at 7 minutes, Layer 1 had a mean weight gain of 0.1kg; layer 2 had a mean weight gain of 0.18 while layer 3 had a mean weight loss of 0.28kg, while at 10 minutes, the first layer had a mean weight gain of 0.06 kg, second layer also had mean weight gain of 0.02 while the third layer had a mean weight loss 0.08. The mean efficiency was highest at 99% in all the layers when sieving operation was carried out for 10 minutes and lowest at 96% for layer 3 when the machine ran for five (5) minutes. The effect of change in speed suggests that increment in sieving speed above 750rpm or below 300rpm gives a low efficiency.

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33

Lazzara, Matthew J., and William M. Deen. "Effects of plasma proteins on sieving of tracer macromolecules in glomerular basement membrane." American Journal of Physiology-Renal Physiology 281, no. 5 (November 1, 2001): F860—F868. http://dx.doi.org/10.1152/ajprenal.2001.281.5.f860.

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It was found previously that the sieving coefficients of Ficoll and Ficoll sulfate across isolated glomerular basement membrane (GBM) were greatly elevated when BSA was present at physiological levels, and it was suggested that most of this increase might have been the result of steric interactions between BSA and the tracers (5). To test this hypothesis, we extended the theory for the sieving of macromolecular tracers to account for the presence of a second, abundant solute. Increasing the concentration of an abundant solute is predicted to increase the equilibrium partition coefficient of a tracer in a porous or fibrous membrane, thereby increasing the sieving coefficient. The magnitude of this partitioning effect depends on solute size and membrane structure. The osmotic reduction in filtrate velocity caused by an abundant, mostly retained solute will also tend to elevate the tracer sieving coefficient. The osmotic effect alone explained only about one-third of the observed increase in the sieving coefficients of Ficoll and Ficoll sulfate, whereas the effect of BSA on tracer partitioning was sufficient to account for the remainder. At physiological concentrations, predictions for tracer sieving in the presence of BSA were found to be insensitive to the assumed shape of the protein (sphere or prolate spheroid). For protein mixtures, the theoretical effect of 6 g/dl BSA on the partitioning of spherical tracers was indistinguishable from that of 3 g/dl BSA and 3 g/dl IgG. This suggests that for partitioning and sieving studies in vitro, a good experimental model for plasma is a BSA solution with a mass concentration matching that of total plasma protein. The effect of plasma proteins on tracer partitioning is expected to influence sieving not only in isolated GBM but also in intact glomerular capillaries in vivo.

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34

Kaplan, A. A., and T. A. Golper. "Sieving Characteristics of a new Polysulfone Hemofilter for use with Continuous Arterio-venous Hemofiltration." International Journal of Artificial Organs 10, no. 6 (November 1987): 357–60. http://dx.doi.org/10.1177/039139888701000606.

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Sieving coefficients (SC) for middle molecular weight (MMW) substances have been found to decrease markedly as filtration rates (Qf) are increased. To best evaluate the newly available Renaflo hemofilter, we studied the effect of increasing filtration rates on the SC of a sample MMW substance (inulin). An in-vi-tro filtration system was designed to deliver varying Qf from 4.1 to 17.7 ml/min. Serum and filtrate chemistries (urea, creatinine, total protein) were determined. The results revealed no change in sieving for urea or creatinine and a universally low sieving for protein. The sieving coefficient for inulin, however, decreased significantly; from 0.93 at a Qf of 4.1 ml/min to 0.79 at a Qf of 17.7 ml/min (p < 0.03). These results confirm that the SC of MMW substances do decrease as Qf increase. Despite the decrease found, when compared to previously published data, the Renaflo hemofilter seems to offer a greater degree of middle molecular weight sieving under conditions encountered during CAVH.

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35

Zhang, Hongmei, Zheng Zhou, Zhe Qu, Zhijie Li, and Wanzhang Wang. "Simulation and Experiment of Sieving Process of Sieving Device for Tiger Nut Harvester." Agriculture 12, no. 10 (October 13, 2022): 1680. http://dx.doi.org/10.3390/agriculture12101680.

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In order to realize mechanized and efficient harvesting of tiger nuts, study the efficient screening technology of beans and soil in a mechanized harvesting operation and improve the harvesting operation efficiency of crawler-type tiger nut harvesters, a theoretical analysis of the motion process of detritus particles on a sieve surface was conducted to determine the main factors affecting the motion of the particles on the sieve surface. A numerical simulation of the sieving process using the discrete element method was conducted to improve the screening efficiency of tiger nuts. The transport law of the debris particle population was analyzed from different perspectives, such as the average velocity of particle motion, particle distribution rate, screening efficiency and loss rate. The effects of factors such as screen amplitude (SA), vibration frequency (VF) and inclination angle (IA) on the sieving performance of the tiger nut threshing and screening device were investigated. The results show that sieving performance evaluation indexes, such as the average speed of particle movement, particle distribution rate, screening efficiency and loss rate, are non-linearly related to the factors of screen amplitude, vibration frequency and screen inclination angle; the effects of amplitude and frequency on the distribution particle size are consistent and show a gradual increase, with the distribution particle size reaching 3.32 mm at an amplitude of 14 mm and 3.46 mm at a frequency of 22 Hz. In the sieving process, the average velocity of the particle population decreases gradually along the direction of motion, and the influence of each factor on the average velocity of the particle population in the motion of the detritus is similar, all showing an increasing trend. This study can provide a reference for exploring the transport law of particles and the efficient screening technology of tiger nuts. Field harvesting tests showed that the screening efficiency and loss rate were 92.87% and 0.83%, respectively, at a screen amplitude of 14 mm, a vibration frequency of 10 Hz and an inclination angle of 2°, and the test results corresponded to the simulation results and met the design requirements of the tiger nut harvester. This study can provide reference for the investigation of the particle transport law and efficient screening technology for tiger nuts.

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36

Deng, Chun Yan, Fang Chen, Chen Deng, and Xiao Qin Zhang. "Design of Mechanism for Sieving Sweet Corn Seeds." Advanced Materials Research 651 (January 2013): 656–60. http://dx.doi.org/10.4028/www.scientific.net/amr.651.656.

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The vibrating screen is used for sweet corn pre-processing. The machine is formed by the electric motor, the transmission system module, the sieving module as well as the rack, in total four parts. With enough tests, the machine is compact in structure and works smoothly and can avoid too much colliding. Also, it’s good at sieving and has a high efficiency and can satisfy the requirement of sieving sweet corn.

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Zhang, Bin, Jinke Gong, Wenhua Yuan, Jun Fu, and Yi Huang. "Intelligent Prediction of Sieving Efficiency in Vibrating Screens." Shock and Vibration 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/9175417.

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In order to effectively predict the sieving efficiency of a vibrating screen, experiments to investigate the sieving efficiency were carried out. Relation between sieving efficiency and other working parameters in a vibrating screen such as mesh aperture size, screen length, inclination angle, vibration amplitude, and vibration frequency was analyzed. Based on the experiments, least square support vector machine (LS-SVM) was established to predict the sieving efficiency, and adaptive genetic algorithm and cross-validation algorithm were used to optimize the parameters in LS-SVM. By the examination of testing points, the prediction performance of least square support vector machine is better than that of the existing formula and neural network, and its average relative error is only 4.2%.

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Fomin, D. S., I. A. Valdes-Korovkin, A. P. Holub, and A. V. Yudina. "Dry sieving analysis of soil by vibratory sieve shaker: modification and optimization." Dokuchaev Soil Bulletin, no. 96 (March 21, 2019): 149–77. http://dx.doi.org/10.19047/0136-1694-2019-96-149-177.

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This study performs a methodical experiment on adaptation and unification of soil dry sieving analysis. The analysis is based on the Savvinov dry sieving method that uses 0.5-1.5 kg air-dried soil samples which are passed through the 10, 7, 5, 3, 2, 1, 0.5, 0.25 mm sieves. The studied soils are silt loam Eutric Retisol and Haplic Chernozem. From each object, 50 kg of fresh soil was sampled from the plow layer (lm2area). Air-dried soil subsamples of 500 ± 0.5 g were used for analysis, clods bigger than 50 mm were gently crushed by pestle with rubber tip. The sieving parameters were the following: 50 Hz vibration frequency - 3000 rpm (depend on current), from 0.5 to 2.5 mm vibration amplitude and from 0.5 to 5 minutes sieving time. Sieve shaker mechanical work (J) was calculated for each mode. The data approximation was carried out by means of the asymptotic regression function. An optimal dry sieving mode was defined for each soil: Eutric Retisol - 1 mm vibration amplitude during 1 minute, Haplic Chernozem - 2.5 mm vibration amplitude during 2 minutes. In the case of sandy soils dry sieving doesn't require much effort. Therefore, in this experiment only fine macrostructure soils were selected (11-16 % < 2 um clay by laser diffraction method). As a result, the unified dry sieving mode of vibratory sieve shakers was developed which is applicable for all studied soils: 2.5 mm vibration amplitude during 2 minutes and 50 Hz frequency when 500 g air-dried soil sample is used.

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Zhu, Wei Bing, Cheng Zhong Deng, and He Shun Wang. "Dynamic Behavior of Bi-Axial Self-Synchronous Shaker with Translation Elliptic Trace." Advanced Materials Research 211-212 (February 2011): 406–10. http://dx.doi.org/10.4028/www.scientific.net/amr.211-212.406.

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According to the self-synchronous theory with two vibrating electric motors, a translation elliptic shaker is designed, and its finite element model for the sieving box is established. The dynamic behavior analysis of the sieving box is reached with CATIA software. The natural frequencies and modal oscillation modes of the sieving box are calculated, and the stress and deformation distribution in every part of the sieving box under rated load are obtained. All shows that, its structure design is reasonable. Under the designed working conditions, the maximum principal stress of the side boards is 39.7 MPa, and its dynamic strength is satisfied. The calculating results will be of significance to the design improvement, and give a basis for the experiment research of dynamic strength.

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40

Jin, Fan, Meng, Zhang, Meng, Yang, and Liu. "Theoretical and Experimental Insights into the Mechanism for Gas Separation through Nanochannels in 2D Laminar MXene Membranes." Processes 7, no. 10 (October 15, 2019): 751. http://dx.doi.org/10.3390/pr7100751.

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Clarifying the mechanism for the gas transportation in the emerging 2D materials-based membranes plays an important role on the design and performance optimization. In this work, the corresponding studies were conducted experimentally and theoretically. To this end, we measured the gas permeances of hydrogen and nitrogen from their mixture through the supported MXene lamellar membrane. Knudsen diffusion and molecular sieving through straight and tortuous nanochannels were proposed to elucidate the gas transport mechanism. The average pore diameter of 5.05 Å in straight nanochannels was calculated by linear regression in the Knudsen diffusion model. The activation energy for H2 transport in molecular sieving model was calculated to be 20.54 kJ mol−1. From the model, we can predict that the gas permeance of hydrogen (with smaller kinetic diameter) is contributed from both Knudsen diffusion and molecular sieving mechanism, but the permeance of larger molecular gases like nitrogen is sourced from Knudsen diffusion. The effects of the critical conditions such as temperature, the diffusion pore diameter of structural defects, and the thickness of the prepared MXene lamellar membrane on hydrogen and nitrogen permeance were also investigated to understand the hydrogen permeation difference from Knudsen diffusion and molecular sieving. At room temperature, the total hydrogen permeance was contributed 18% by Knudsen diffusion and 82% by molecular sieving. The modeling results indicate that molecular sieving plays a dominant role in controlling gas selectivity.

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Mason, Alex, Victor Reiner, and Shruthi Sridhar. "Cyclic Sieving for cyclic codes." Finite Fields and Their Applications 73 (August 2021): 101846. http://dx.doi.org/10.1016/j.ffa.2021.101846.

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42

Behaouari, Samir Brahim. "Sieving Positive Integers by Primes." Journal of Mathematics Research 11, no. 1 (January 9, 2019): 17. http://dx.doi.org/10.5539/jmr.v11n1p17.

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Let Q be a set of primes and let Ψ(x, y, Q) be the number of positive integers less than or equal to x that have no prime factors from Q exceeding the integer y. We have enhanced an asymptotic formula for Ψ(x; y; Q) after highlighting some properties of the function Ψ.

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43

Marynych, Alexander, and Ilya Molchanov. "Sieving random iterative function systems." Bernoulli 27, no. 1 (February 2021): 34–65. http://dx.doi.org/10.3150/20-bej1221.

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Stier, Zachar, Julian Wellman, and Zixuan Xu. "Dihedral sieving on cluster complexes." Enumerative Combinatorics and Applications 2, no. 2 (October 1, 2021): Article #S2R9. http://dx.doi.org/10.54550/eca2022v2s2r9.

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45

Oh, Jaeseong. "Macdonald polynomials and cyclic sieving." European Journal of Combinatorics 101 (March 2022): 103465. http://dx.doi.org/10.1016/j.ejc.2021.103465.

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46

Budd, Peter M. "Sieving gases with twisty polymers." Science 375, no. 6587 (March 25, 2022): 1354–55. http://dx.doi.org/10.1126/science.abm5103.

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47

Meffe, Gary K., Anne H. Ehrlich, and David Ehrenfeld. "Response to Sieving et al." Conservation Biology 8, no. 1 (March 1994): 308–9. http://dx.doi.org/10.1046/j.1523-1739.1994.08010308.x.

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Liu, Yi, Nanyi Wang, Zhengwen Cao, and Jürgen Caro. "Molecular sieving through interlayer galleries." J. Mater. Chem. A 2, no. 5 (2014): 1235–38. http://dx.doi.org/10.1039/c3ta13792a.

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49

Ashraf, A. Rahman, and Christoph Hartkopf-Fröder. "Sieving techniques for palynological preparations." Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 200, no. 1-2 (June 21, 1996): 221–35. http://dx.doi.org/10.1127/njgpa/200/1996/221.

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50

Berget, Andrew, Sen-Peng Eu, and Victor Reiner. "Constructions for Cyclic Sieving Phenomena." SIAM Journal on Discrete Mathematics 25, no. 3 (January 2011): 1297–314. http://dx.doi.org/10.1137/100803596.

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