Pub Date : 2023-10-27DOI: 10.1080/02726351.2023.2269881
Allison D. Zieschang, Kevin F. Hoffseth, Tammy R. Dugas, Carlos E. Astete, Dorin Boldor
{"title":"Method for assessing coating uniformity of angioplasty balloons coated with poly(lactic-co-glycolic acid) nanoparticles loaded with quercetin","authors":"Allison D. Zieschang, Kevin F. Hoffseth, Tammy R. Dugas, Carlos E. Astete, Dorin Boldor","doi":"10.1080/02726351.2023.2269881","DOIUrl":"https://doi.org/10.1080/02726351.2023.2269881","url":null,"abstract":"","PeriodicalId":19742,"journal":{"name":"Particulate Science and Technology","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136318966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-27DOI: 10.1080/02726351.2023.2269385
S. A. Rastialhosseini, A. A. Abdollahzadeh
AbstractSegregation of feed based on size is used to increase the efficiency of gravity concentration by jig devices. Due to the variety of size and density of the particles in the feed, choosing how to segregate it before jigging is still a challenge. This article segregates the feed (with a size range of 3 to 8 mm) into the different states and then, simulates the jigging performance with the two-way coupling method of computational fluid dynamics and the discrete element method in 3 dimensions. In different states, the energy consumption and the number of cycles required for gravity concentration were compared, qualitatively. The simulation shows that the segregation of the jig feed into two size classes (3 to 4) and (5 to 8) mm decreases the energy consumption and the number of cycles. Therefore, the segregation state where the fine-grained part has a close size range and the coarse-grained part has a wide size range will have the lowest energy consumption and the number of cycles.Keywords: Feed segregationgravity concentrationtwo-way CFD-DEM couplingjiggingenergy consumption AcknowledgementThe authors are grateful to Central Complex Laboratory University of Kashan, Ultrafast Processing and Computing Center.Disclosure statementNo potential conflict of interest was reported by the author(s).
{"title":"Effect of feed-size segregation on energy consumption during jigging: A CFD-DEM study","authors":"S. A. Rastialhosseini, A. A. Abdollahzadeh","doi":"10.1080/02726351.2023.2269385","DOIUrl":"https://doi.org/10.1080/02726351.2023.2269385","url":null,"abstract":"AbstractSegregation of feed based on size is used to increase the efficiency of gravity concentration by jig devices. Due to the variety of size and density of the particles in the feed, choosing how to segregate it before jigging is still a challenge. This article segregates the feed (with a size range of 3 to 8 mm) into the different states and then, simulates the jigging performance with the two-way coupling method of computational fluid dynamics and the discrete element method in 3 dimensions. In different states, the energy consumption and the number of cycles required for gravity concentration were compared, qualitatively. The simulation shows that the segregation of the jig feed into two size classes (3 to 4) and (5 to 8) mm decreases the energy consumption and the number of cycles. Therefore, the segregation state where the fine-grained part has a close size range and the coarse-grained part has a wide size range will have the lowest energy consumption and the number of cycles.Keywords: Feed segregationgravity concentrationtwo-way CFD-DEM couplingjiggingenergy consumption AcknowledgementThe authors are grateful to Central Complex Laboratory University of Kashan, Ultrafast Processing and Computing Center.Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":19742,"journal":{"name":"Particulate Science and Technology","volume":"68 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136235007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-23DOI: 10.1080/02726351.2023.2272136
Muhammad Waryal Dahri, Hao Zhou, Mingxi Zhou
AbstractThe study focused on how different moisture levels (5%–11%) and powder binders affected the bulk and strength characteristics of three iron ore blends. Increasing liquid content initially decreased and then increased the bulk density of all blends, and the shear strength of Blend-A and Blend-B increased up to 9% liquid content and then decreased at 11%, while Blend-C had a higher shear strength. In Blend-A, the cohesion varies between 0.64 and 5.49 kPa, while the internal frictional angle varies between 39.05° to 46.75°. For Blend-B, the cohesion ranges from 1.03 to 4.05 kPa, and the internal frictional angle ranges from 45.00° to 47.90°. Furthermore, Blend-C has cohesion ranging from 2.71 to 3.97 kPa and internal frictional angle ranging from 45.00° to 50.07°. Blend-A was considered a base blend using three powders, and the impact of adding these powders was assessed using Blend-A. HL maintained the cohesion at 4.50 kPa, and the internal frictional angle of Blend-A was significantly increased by 49.62° in the presence of HL. QL powder maintained cohesion values (1.47 kPa) and high internal frictional angle values (51°). Similarly, calcite powder sustained cohesion values (2.49 kPa) and high internal frictional angle values (51.96°).Keywords: Iron ore mixturepowder binderbulk densitymoistureshear strengthtensile strengthcohesioninternal friction angleparticle size Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by National Natural Science Foundation of China (51906212).
{"title":"Investigating the fundamental properties of iron ore granules when combined with varying amounts of liquid and different powder binders","authors":"Muhammad Waryal Dahri, Hao Zhou, Mingxi Zhou","doi":"10.1080/02726351.2023.2272136","DOIUrl":"https://doi.org/10.1080/02726351.2023.2272136","url":null,"abstract":"AbstractThe study focused on how different moisture levels (5%–11%) and powder binders affected the bulk and strength characteristics of three iron ore blends. Increasing liquid content initially decreased and then increased the bulk density of all blends, and the shear strength of Blend-A and Blend-B increased up to 9% liquid content and then decreased at 11%, while Blend-C had a higher shear strength. In Blend-A, the cohesion varies between 0.64 and 5.49 kPa, while the internal frictional angle varies between 39.05° to 46.75°. For Blend-B, the cohesion ranges from 1.03 to 4.05 kPa, and the internal frictional angle ranges from 45.00° to 47.90°. Furthermore, Blend-C has cohesion ranging from 2.71 to 3.97 kPa and internal frictional angle ranging from 45.00° to 50.07°. Blend-A was considered a base blend using three powders, and the impact of adding these powders was assessed using Blend-A. HL maintained the cohesion at 4.50 kPa, and the internal frictional angle of Blend-A was significantly increased by 49.62° in the presence of HL. QL powder maintained cohesion values (1.47 kPa) and high internal frictional angle values (51°). Similarly, calcite powder sustained cohesion values (2.49 kPa) and high internal frictional angle values (51.96°).Keywords: Iron ore mixturepowder binderbulk densitymoistureshear strengthtensile strengthcohesioninternal friction angleparticle size Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by National Natural Science Foundation of China (51906212).","PeriodicalId":19742,"journal":{"name":"Particulate Science and Technology","volume":"23 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135367049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-20DOI: 10.1080/02726351.2023.2269388
Salah Zouaoui
AbstractThe modeling of moving solid particles in fluid flow has been the focus of many studies and has succeeded to attract significant attention from researchers. However, commonly used modeling approaches such as discrete element modeling (DEM) and direct numerical simulations (DNS) lack simplicity and have been computationally intensive. The aim of this paper is to develop a new approach to simulate solid transport in an incompressible Newtonian fluid flow. This method is based on the Finite element method with penalization of the deformation tensor. The fluid behavior is governed by the Navier-Stokes equations within the investigation domain. To take into account collisions, we present an algorithm which allows us to handle contacts between rigid particles. In this paper, 2D fluid/particles flow simulations are performed; the results are validated by comparison with results from other methods. We attempt to simulate the conveying of solid particles behavior of circular particles in a fluid flow inside a pipe. The numerical tests show that the present method provides a very efficient approach to directly simulate the solid transport inside the channels.Keywords: Numerical simulationNewtonian fluid/particlescontact handlingFreeFem++penalty method AcknowledgmentsThe Algerian Ministry of Higher Education and Scientific Research’s General Directorate of Scientific Research and Technological Development (DGRSDT) is highly appreciated in our research program.Disclosure statementNo potential conflict of interest was reported by the author(s).
{"title":"Direct numerical simulation of fluid/solid particles flow inside a channel","authors":"Salah Zouaoui","doi":"10.1080/02726351.2023.2269388","DOIUrl":"https://doi.org/10.1080/02726351.2023.2269388","url":null,"abstract":"AbstractThe modeling of moving solid particles in fluid flow has been the focus of many studies and has succeeded to attract significant attention from researchers. However, commonly used modeling approaches such as discrete element modeling (DEM) and direct numerical simulations (DNS) lack simplicity and have been computationally intensive. The aim of this paper is to develop a new approach to simulate solid transport in an incompressible Newtonian fluid flow. This method is based on the Finite element method with penalization of the deformation tensor. The fluid behavior is governed by the Navier-Stokes equations within the investigation domain. To take into account collisions, we present an algorithm which allows us to handle contacts between rigid particles. In this paper, 2D fluid/particles flow simulations are performed; the results are validated by comparison with results from other methods. We attempt to simulate the conveying of solid particles behavior of circular particles in a fluid flow inside a pipe. The numerical tests show that the present method provides a very efficient approach to directly simulate the solid transport inside the channels.Keywords: Numerical simulationNewtonian fluid/particlescontact handlingFreeFem++penalty method AcknowledgmentsThe Algerian Ministry of Higher Education and Scientific Research’s General Directorate of Scientific Research and Technological Development (DGRSDT) is highly appreciated in our research program.Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":19742,"journal":{"name":"Particulate Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135618797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AbstractConveyor belt misalignment is an operational and maintenance issue for many belt conveyor systems and can result in significant downtime and equipment failure. This article presents a visual detection method for belt misalignment detection using real-time instance segmentation. An improved version of the You Only Look At CoeffcienTs (YOLACT) network is discussed, where the feature backbone of the original YOLACT network is optimized. The improved YOLACT network is used to experimentally detect the belt misalignment with different combinations of bulk solid and operating conditions. The results show that the detection precision of the improved YOLACT network achieves 86.05% mean Average Precision (mAP), in which the greatest improvement on the mAP is the FPN modification with an increase of 1.75% compared to the YOLACT network with the ResNeXt-50. In terms of the detection speed, the improved YOLACT network (15.19 Frames Per Second [FPS]) outperforms the Mask R-CNN (3.42 FPS) and the MS R-CNN (3.41 FPS). Moreover, the averaged detection error from the tests is 0.74 mm for a belt loaded with different bulk solids. It can be concluded that the application of the improved YOLACT network is effective for the real-time detection of conveyor belt misalignment.Keywords: Conveyor belt misalignmentvisual detectionfeature backboneimproved YOLACT Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work is financially supported by National Natural Science Foundation of China (Grant No.: 52202500) and Hainan Institute at Wuhan University of Technology (Grant No.: 2021KF0028).
摘要传送带失中是许多带式输送机系统的运行和维护问题，可能导致严重的停机和设备故障。本文提出了一种基于实时实例分割的皮带错位视觉检测方法。讨论了一种改进版的You Only Look At coefficient (YOLACT)网络，对原有YOLACT网络的特征骨干网进行了优化。利用改进的YOLACT网络，对不同体积固体组合和运行条件下的皮带错中进行了实验检测。结果表明，改进后的YOLACT网络的检测精度达到了86.05%的mean Average precision (mAP)，其中对mAP的改进最大的是FPN修改，比使用ResNeXt-50的YOLACT网络提高了1.75%。在检测速度方面，改进的YOLACT网络(15.19 Frames Per Second [FPS])优于Mask R-CNN (3.42 FPS)和MS R-CNN (3.41 FPS)。此外，从测试的平均检测误差为0.74 mm的皮带装载不同的散装固体。结果表明，应用改进的YOLACT网络对输送带错中实时检测是有效的。关键词:输送带错位视觉检测特征主干改进YOLACT披露声明作者未报告潜在利益冲突。项目资助:国家自然科学基金资助项目(批准号:No. 102no .)基金资助:52202500)和武汉理工大学海南学院(批准号:52202500);: 2021 kf0028)。
{"title":"A visual detection method for conveyor belt misalignment based on the improved YOLACT network","authors":"Chenglong Jin, Jianming Yuan, Jiahe Shen, Craig Wheeler, Zhiyuan Liu, Jiahao Yan","doi":"10.1080/02726351.2023.2268567","DOIUrl":"https://doi.org/10.1080/02726351.2023.2268567","url":null,"abstract":"AbstractConveyor belt misalignment is an operational and maintenance issue for many belt conveyor systems and can result in significant downtime and equipment failure. This article presents a visual detection method for belt misalignment detection using real-time instance segmentation. An improved version of the You Only Look At CoeffcienTs (YOLACT) network is discussed, where the feature backbone of the original YOLACT network is optimized. The improved YOLACT network is used to experimentally detect the belt misalignment with different combinations of bulk solid and operating conditions. The results show that the detection precision of the improved YOLACT network achieves 86.05% mean Average Precision (mAP), in which the greatest improvement on the mAP is the FPN modification with an increase of 1.75% compared to the YOLACT network with the ResNeXt-50. In terms of the detection speed, the improved YOLACT network (15.19 Frames Per Second [FPS]) outperforms the Mask R-CNN (3.42 FPS) and the MS R-CNN (3.41 FPS). Moreover, the averaged detection error from the tests is 0.74 mm for a belt loaded with different bulk solids. It can be concluded that the application of the improved YOLACT network is effective for the real-time detection of conveyor belt misalignment.Keywords: Conveyor belt misalignmentvisual detectionfeature backboneimproved YOLACT Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work is financially supported by National Natural Science Foundation of China (Grant No.: 52202500) and Hainan Institute at Wuhan University of Technology (Grant No.: 2021KF0028).","PeriodicalId":19742,"journal":{"name":"Particulate Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135779821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-18DOI: 10.1080/02726351.2023.2267492
Hang Jing, Xu Guo, Pengfei Yang
AbstractA discrete-continuous (PFC–FLAC) coupling method was used in this study to simulate laboratory triaxial tests with soybean granular material. The mesoscopic mechanical parameters of the soybean granular material were calibrated by comparing them with actual laboratory test results, and the validity of the modeling method was verified. Subsequently, the particle motion law and mechanical mechanism of the soybean granular materials were analyzed based on the particle displacement field, velocity field, and force chain network. The results showed that the coupled PFC–FLAC method could better describe the macroscopic stress–strain relationship, deformation damage characteristics, and shear strength mechanical indexes of soybean granular materials. With increasing confining pressure (50–200 kPa), the bulging deformation of the specimens changed from uniform to concentrated but uneven. The particle contact number and maximum particle contact stress increased by 19.3 and 48%, respectively. Additionally, variations of the macroscopic properties of the specimens with microscopic parameters were revealed. Under the same conditions, the change in the peak stress of the specimen was proportional to the interparticle friction coefficient. Moreover, the slope of the stress–strain curve increased gradually with an increase in the effective modulus.Keywords: Discrete element methodPFC–FLAC couplingsoybean granular materialtriaxial compressionnumerical simulation Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by the [Training Program for Young Backbone Teachers in Higher Education Institutions in Henan Province] under Grant [Number 2020GGJS086]; and [Henan Province Higher Education Key Research Project Plan] under Grant [Number 23A560001].
{"title":"PFC–FLAC coupling-based numerical simulation of triaxial test on soybean granular material","authors":"Hang Jing, Xu Guo, Pengfei Yang","doi":"10.1080/02726351.2023.2267492","DOIUrl":"https://doi.org/10.1080/02726351.2023.2267492","url":null,"abstract":"AbstractA discrete-continuous (PFC–FLAC) coupling method was used in this study to simulate laboratory triaxial tests with soybean granular material. The mesoscopic mechanical parameters of the soybean granular material were calibrated by comparing them with actual laboratory test results, and the validity of the modeling method was verified. Subsequently, the particle motion law and mechanical mechanism of the soybean granular materials were analyzed based on the particle displacement field, velocity field, and force chain network. The results showed that the coupled PFC–FLAC method could better describe the macroscopic stress–strain relationship, deformation damage characteristics, and shear strength mechanical indexes of soybean granular materials. With increasing confining pressure (50–200 kPa), the bulging deformation of the specimens changed from uniform to concentrated but uneven. The particle contact number and maximum particle contact stress increased by 19.3 and 48%, respectively. Additionally, variations of the macroscopic properties of the specimens with microscopic parameters were revealed. Under the same conditions, the change in the peak stress of the specimen was proportional to the interparticle friction coefficient. Moreover, the slope of the stress–strain curve increased gradually with an increase in the effective modulus.Keywords: Discrete element methodPFC–FLAC couplingsoybean granular materialtriaxial compressionnumerical simulation Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by the [Training Program for Young Backbone Teachers in Higher Education Institutions in Henan Province] under Grant [Number 2020GGJS086]; and [Henan Province Higher Education Key Research Project Plan] under Grant [Number 23A560001].","PeriodicalId":19742,"journal":{"name":"Particulate Science and Technology","volume":"17 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135824780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-16DOI: 10.1080/02726351.2023.2268574
Dan Wang, Cheng Wang, Zengqiang Chen, Chenlong Duan, Chenyang Zhou
AbstractGas–solid Fluidized bed technology has a pivotal role in coal separation. Bubble movement behavior is an important factor affecting the fluidization stability. Fluidized bed measurement is an essential link in the bubble behavior study. As the main evaluation parameters, the concentration distribution and density distribution can reflect the bubble movement behavior. This work uses a noninvasive method of electrical capacitance tomography (ECT) for fluidized bed measurements, combined with COMSOL simulation validation for real-time imaging of bubbles in Geldart Group B magnetite powder particles. Meanwhile, the most suitable reconstruction algorithm for gas–solid separation fluidized bed is selected from three image reconstruction algorithms. And then concentration distribution and density distribution are analyzed. The results show that under reasonable gas velocity conditions (U–Umf =2.28 and 3.17 cm/s), the central region ([0, 1/4]) concentrations of [0.43–0.45] and [0.39–0.42] and densities of [1.98–2.06 g/cm3] and [1.86–1.96 g/cm3] are obtained by ECT measurements, respectively. Finally, the bed density obtained from the ECT sensors in the experiment was validated using three different bed density models. The error can be controlled to within 20%, which indicates that the ECT measurement method has a fairly high reliability and accuracy in dry coal beneficiation field.Keywords: Gas–solid fluidized bedelectrical capacitance tomography (ECT)bubble movement behaviorbed density Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe research work is financially supported by China National Funds for Distinguished Young Scientists (52125403), Natural Science Foundation of Jiangsu Province (BK20200651), National Natural Science Foundation of China (52104276, 52261135540, 52220105008, 51974306), the Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX23_2815); the Graduate Innovation Program of China University of Mining and Technology (2023WLKXJ065), the Fundamental Research Funds for the Central Universities (2023XSCX020).
{"title":"Study on the relation of bubble behavior and bed density in gas–solid separation fluidized bed using electrical capacitance tomography","authors":"Dan Wang, Cheng Wang, Zengqiang Chen, Chenlong Duan, Chenyang Zhou","doi":"10.1080/02726351.2023.2268574","DOIUrl":"https://doi.org/10.1080/02726351.2023.2268574","url":null,"abstract":"AbstractGas–solid Fluidized bed technology has a pivotal role in coal separation. Bubble movement behavior is an important factor affecting the fluidization stability. Fluidized bed measurement is an essential link in the bubble behavior study. As the main evaluation parameters, the concentration distribution and density distribution can reflect the bubble movement behavior. This work uses a noninvasive method of electrical capacitance tomography (ECT) for fluidized bed measurements, combined with COMSOL simulation validation for real-time imaging of bubbles in Geldart Group B magnetite powder particles. Meanwhile, the most suitable reconstruction algorithm for gas–solid separation fluidized bed is selected from three image reconstruction algorithms. And then concentration distribution and density distribution are analyzed. The results show that under reasonable gas velocity conditions (U–Umf =2.28 and 3.17 cm/s), the central region ([0, 1/4]) concentrations of [0.43–0.45] and [0.39–0.42] and densities of [1.98–2.06 g/cm3] and [1.86–1.96 g/cm3] are obtained by ECT measurements, respectively. Finally, the bed density obtained from the ECT sensors in the experiment was validated using three different bed density models. The error can be controlled to within 20%, which indicates that the ECT measurement method has a fairly high reliability and accuracy in dry coal beneficiation field.Keywords: Gas–solid fluidized bedelectrical capacitance tomography (ECT)bubble movement behaviorbed density Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe research work is financially supported by China National Funds for Distinguished Young Scientists (52125403), Natural Science Foundation of Jiangsu Province (BK20200651), National Natural Science Foundation of China (52104276, 52261135540, 52220105008, 51974306), the Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX23_2815); the Graduate Innovation Program of China University of Mining and Technology (2023WLKXJ065), the Fundamental Research Funds for the Central Universities (2023XSCX020).","PeriodicalId":19742,"journal":{"name":"Particulate Science and Technology","volume":"225 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136079977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AbstractGlycan-immobilizing particles are useful for a wide variety of biomedical applications, such as the detection, separation, and purification of proteins, viruses, and bacteria, which can be specifically bound by the glycan moieties. One strategy for the quick and accurate detection of these components is to collect the particles magnetically after binding the components to the particle surface. We fabricated core–shell particles composed of a magnetic core and a thin polymer shell. The shell was incorporated with a fluorescent dye with glucose molecules immobilized on its surface. As the magnetic core, we selected Fe3O4 particles. Taking into consideration its low environmental impact, we adopted soap-free emulsion polymerization to form the polymer shell. Thus, methyl methacrylate was polymerized in the presence of Fe3O4 particles, octyl-β-d-glucopyranoside, and rhodamine B to generate a glucose-capped fluorescent PMMA thin shell on the Fe3O4 particles. The resulting particles exhibited a saturation magnetization of ∼53 emu/g. The novelty of this research is that glucose-immobilized polymer particles with excellent magnetic properties that can be collected in 5 s using a magnet can be synthesized with an environmentally friendly method.Keywords: Fe3O4glucosecore–shell particlesoap-free emulsion polymerization Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis research was supported by JSPS KAKENHI under Grant Number 21K04764, AMED under Grant Numbers JP21lm0203010 and JP22ym0126803, and an Ibaraki University Grant for Specially Promoted Research.
{"title":"Fabrication of glucose-immobilizing fluorescent polymer particles with high magnetic responsiveness","authors":"Noriko Yamauchi, Yosuke Noshiro, Shohei Tada, Keisuke Sato, Makoto Ogata, Yoshio Kobayashi","doi":"10.1080/02726351.2023.2263402","DOIUrl":"https://doi.org/10.1080/02726351.2023.2263402","url":null,"abstract":"AbstractGlycan-immobilizing particles are useful for a wide variety of biomedical applications, such as the detection, separation, and purification of proteins, viruses, and bacteria, which can be specifically bound by the glycan moieties. One strategy for the quick and accurate detection of these components is to collect the particles magnetically after binding the components to the particle surface. We fabricated core–shell particles composed of a magnetic core and a thin polymer shell. The shell was incorporated with a fluorescent dye with glucose molecules immobilized on its surface. As the magnetic core, we selected Fe3O4 particles. Taking into consideration its low environmental impact, we adopted soap-free emulsion polymerization to form the polymer shell. Thus, methyl methacrylate was polymerized in the presence of Fe3O4 particles, octyl-β-d-glucopyranoside, and rhodamine B to generate a glucose-capped fluorescent PMMA thin shell on the Fe3O4 particles. The resulting particles exhibited a saturation magnetization of ∼53 emu/g. The novelty of this research is that glucose-immobilized polymer particles with excellent magnetic properties that can be collected in 5 s using a magnet can be synthesized with an environmentally friendly method.Keywords: Fe3O4glucosecore–shell particlesoap-free emulsion polymerization Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis research was supported by JSPS KAKENHI under Grant Number 21K04764, AMED under Grant Numbers JP21lm0203010 and JP22ym0126803, and an Ibaraki University Grant for Specially Promoted Research.","PeriodicalId":19742,"journal":{"name":"Particulate Science and Technology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134944578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-05DOI: 10.1080/02726351.2023.2263380
Enlin Long, Qingfa Chen, Jun Liu
AbstractThe essence of particle flow is the microscale breaking and rebuilding of force chains. Therefore, it is essential to conduct research on force chains during the process of particle flow. This study focuses on particle flow during the ore drawing process, develops a photoelastic experimental system for physical ore drawing, studies the macroscopic change characteristics of force chains, analyzes the statistical properties of force chain intensity, length, quantity, and azimuth, and discusses the particle blockage phenomenon and its engineering application in ore drawing. The results show that the length of the strong force chains is mostly about five particles, with fewer numbers, and their direction is primarily concentrated between 60° and 120°. Weak force chains are abundant and distributed uniformly in all directions. In addition, based on the arching and blocking characteristics of particles, a novel sealing method for the ore pass is proposed. The research results deepen the understanding of granular material flow hazards and provide a valuable reference for similar engineering analyses.Keywords: Ore drawingphotoelastic experimentparticle flowparticle blockageforce chain Authors’ contributionsEnlin Long: Conceptualization, Software, Formal analysis, Investigation, Data curation, Writing-original draft. Qingfa Chen: Resources, Funding acquisition, Supervision, Project administration, Writing-review & editing. Jun Liu: Writing-review & editing.Disclosure statementNo potential conflict of interest was reported by the author(s). The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.Additional informationFundingThis work was supported by the National Natural Science Foundation of China [grant number 51964003].
{"title":"Characteristics of force chains in the flow of photoelastic particles under a barrier","authors":"Enlin Long, Qingfa Chen, Jun Liu","doi":"10.1080/02726351.2023.2263380","DOIUrl":"https://doi.org/10.1080/02726351.2023.2263380","url":null,"abstract":"AbstractThe essence of particle flow is the microscale breaking and rebuilding of force chains. Therefore, it is essential to conduct research on force chains during the process of particle flow. This study focuses on particle flow during the ore drawing process, develops a photoelastic experimental system for physical ore drawing, studies the macroscopic change characteristics of force chains, analyzes the statistical properties of force chain intensity, length, quantity, and azimuth, and discusses the particle blockage phenomenon and its engineering application in ore drawing. The results show that the length of the strong force chains is mostly about five particles, with fewer numbers, and their direction is primarily concentrated between 60° and 120°. Weak force chains are abundant and distributed uniformly in all directions. In addition, based on the arching and blocking characteristics of particles, a novel sealing method for the ore pass is proposed. The research results deepen the understanding of granular material flow hazards and provide a valuable reference for similar engineering analyses.Keywords: Ore drawingphotoelastic experimentparticle flowparticle blockageforce chain Authors’ contributionsEnlin Long: Conceptualization, Software, Formal analysis, Investigation, Data curation, Writing-original draft. Qingfa Chen: Resources, Funding acquisition, Supervision, Project administration, Writing-review & editing. Jun Liu: Writing-review & editing.Disclosure statementNo potential conflict of interest was reported by the author(s). The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.Additional informationFundingThis work was supported by the National Natural Science Foundation of China [grant number 51964003].","PeriodicalId":19742,"journal":{"name":"Particulate Science and Technology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135482384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-05DOI: 10.1080/02726351.2023.2265313
Rachit Poddar, S. S. Mallick, Lal Kundan
AbstractSifting and fluidization segregation characteristics were determined for 6 different fly ash samples (particle size ‘d50’ ranging from 68 µm to 141 µm) using standard testers. The results have shown that the coarser particles have a greater tendency to sifting segregation, and the finer powders respond more to fluidization segregation. The angle of repose for the fine ash and coarse ash were 55° and 38°, respectively, which indicated poor to good flowability conditions. The flow function test shows that all the samples were in an easy-flowing to a free-flowing zone. The angle of repose and material flow function have provided a good correlation with the sifting segregation index. In contrast, cohesion between particles, the ratio of free terminal velocities and diameters for coarse to fine particles have shown a good fit with fluidization segregation indices. For both sifting and fluidization segregation, the model correlation values are 0.91 and 0.94, indicating the predicted results are a good fit to the experimental data.Keywords: Sifting and fluidization segregationsegregation indexangle of reposecohesionterminal settling velocity AcknowledgementThe authors acknowledge the collaboration between Thapar Institute of Engineering & Technology (TIET) and Granutools (Belgium) for using the GranuHeap instrument.Disclosure statementNo potential conflict of interest was reported by the author(s).
{"title":"An experimental investigation into sifting and fluidization segregation characteristics for coal fly ash","authors":"Rachit Poddar, S. S. Mallick, Lal Kundan","doi":"10.1080/02726351.2023.2265313","DOIUrl":"https://doi.org/10.1080/02726351.2023.2265313","url":null,"abstract":"AbstractSifting and fluidization segregation characteristics were determined for 6 different fly ash samples (particle size ‘d50’ ranging from 68 µm to 141 µm) using standard testers. The results have shown that the coarser particles have a greater tendency to sifting segregation, and the finer powders respond more to fluidization segregation. The angle of repose for the fine ash and coarse ash were 55° and 38°, respectively, which indicated poor to good flowability conditions. The flow function test shows that all the samples were in an easy-flowing to a free-flowing zone. The angle of repose and material flow function have provided a good correlation with the sifting segregation index. In contrast, cohesion between particles, the ratio of free terminal velocities and diameters for coarse to fine particles have shown a good fit with fluidization segregation indices. For both sifting and fluidization segregation, the model correlation values are 0.91 and 0.94, indicating the predicted results are a good fit to the experimental data.Keywords: Sifting and fluidization segregationsegregation indexangle of reposecohesionterminal settling velocity AcknowledgementThe authors acknowledge the collaboration between Thapar Institute of Engineering & Technology (TIET) and Granutools (Belgium) for using the GranuHeap instrument.Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":19742,"journal":{"name":"Particulate Science and Technology","volume":"447 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135482546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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