Article
Environmental Sciences
Umesh Chejara, Anamika Prajapati, Arvind Kumar
Summary: This study synthesized and characterized nano-particles of polycrystalline magnesium and iron ferrite doped with rare earth materials. The electrical properties of these materials were measured, and it was found that they exhibit variation behavior with respect to frequency. The study suggests that these materials may have potential applications in the fabrication of microwave antennas to reduce energy losses.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Food Science & Technology
Rafael Perez-Campos, Jose Fayos-Fernandez, Juan Monzo-Cabrera
Summary: This study measured the permittivity of raw and boiled quinoa seeds and conducted experiments under various conditions such as temperature, moisture content, and bulk density. The results showed that both raw and boiled quinoa can be processed with microwave technology, but caution must be exercised with raw quinoa due to the significant increase in permittivity with temperature, which may lead to a thermal runaway.
CURRENT RESEARCH IN FOOD SCIENCE
(2023)
Article
Agricultural Engineering
Samir Trabelsi
Summary: A method for rapid and nondestructive determination of moisture content and water activity of granular and particulate materials was developed, relying on the measurement of dielectric properties at a single microwave frequency. Linear and exponential growth regressions were used to correlate dielectric properties with moisture content and water activity, showing accurate predictions for almond kernel samples.
TRANSACTIONS OF THE ASABE
(2021)
Article
Materials Science, Textiles
Yaya Zhang, Jiyong Hu, Xiong Yan, Huating Tu
Summary: The thickness and dielectric properties of fabric substrate are crucial in the design of wearable antennas, with a thicker substrate with low dielectric constant and high loss tangent enhancing antenna bandwidth. Sewing multiple fabrics together can increase thickness while maintaining flexibility, but controlling dielectric properties is challenging due to the lack of relationship between materials. A proposed circuit model was used to establish equivalent capacitance and resistance models for sewed multilayer fabric to predict its loss tangent, showing good agreement with experimental results and providing a basis for multilayer flexible electronic substrate design.
TEXTILE RESEARCH JOURNAL
(2022)
Article
Materials Science, Ceramics
M. D. Hossain, A. Masud, M. N. I. Khan, S. S. Sikder
Summary: Nanostructured Bi0.9Eu0.1FeO3 (BEFO), Ni0.6Zn0.4Fe2O4 (NZF), and (1-x).BEFO + x.NZF composites have been synthesized and characterized. The addition of NZF content in the composites modified their magnetic and dielectric properties. The optimized 0.9 BEFO + 0.1 NZF composite showed the highest permeability and dielectric values with the least amount of losses.
CERAMICS INTERNATIONAL
(2023)
Article
Physics, Multidisciplinary
Chen Wang, Xiaoming Liu, Lu Gan, Qing Cai
Summary: A dual-band non-destructive dielectric constant sensor based on complementary split ring resonators is proposed in this study, where numerical simulation and parametric study are employed to determine the optimal thickness and identify air gap as a significant error source affecting measurement accuracy.
FRONTIERS IN PHYSICS
(2021)
Article
Instruments & Instrumentation
Haiping Zhou, Yanjun Wang, Yuexin Gao, Ze Zhang, Siyu Liu, Yanyan Wang, Meijie Yu, Xianming Wang, Chengguo Wang
Summary: This study prepared composite coatings with low infrared emissivity and low dielectric properties using modified EPDM as binder. Appropriate grafting modification significantly improved the mechanical properties of the composite coatings. The effects of grafting modification on the infrared emissivity and dielectric properties were minimal. The study revealed the mechanism of improved compatibility and interfacial bonding between filler and binder due to grafting modification.
INFRARED PHYSICS & TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Theeranuch Nachaithong, Pairot Moontragoon, Prasit Thongbai
Summary: The (Zn, Nb)-codoped TiO2 nanopowder and ceramic with highly dense microstructure were successfully synthesized. The ZNTO ceramic exhibited thermally activated giant dielectric relaxation, and the outer surface layer had a slight effect on the dielectric properties. Theoretical calculations revealed the presence of specific defect clusters, supporting the absence of electron-pinned defect-dipoles and suggesting an alternative mechanism for the giant dielectric properties.
Article
Computer Science, Information Systems
Jurgen K. A. Nogueira, Joao G. D. Oliveira, Samuel B. Paiva, Valdemir P. Silva Neto, Adaildo G. D'Assuncao
Summary: A sensor is proposed to characterize the complex permittivity of dielectric materials in a non-destructive and non-invasive way. The sensor is based on a rectangular patch microstrip two-port circuit with a complementary split-ring resonator (CSRR) element. The sensitivity analysis is determined by varying the permittivity of the material under test (MUT). The proposed sensor is simulated and analyzed using Ansoft HFSS software, and the results show good agreement with measurements made on two different dielectric material samples with known complex permittivity values.
Article
Polymer Science
Fengping Liu, Xingrong Chen, Jiaren Hou, Jing Sun, Qiang Fang
Summary: The trifluoromethyl-containing organosiloxane synthesized through the Piers-Rubinsztajn reaction exhibits good dielectric properties and thermal stability at high temperature, making it suitable for use as a matrix resin in 5G communication device fabrication.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Materials Science, Textiles
Huating Tu, Yaya Zhang, Hong Hong, Jiyong Hu, Xin Ding
Summary: The study successfully measured the dielectric constant of thin film using strip line ring resonator principle, verifying the accuracy of the measurement method for dielectric constant and loss. The results showed that the dielectric constant of the fabric was 2.4, with a loss tangent of 0.05.
JOURNAL OF THE TEXTILE INSTITUTE
(2021)
Article
Environmental Sciences
RubalyaValantina Sathianathan, Aniruthaan Kannapiran, Natarajan Shanmugam
Summary: The study analyzed the oxidative stability of groundnut oil and mustard oil blended with varying concentrations of alpha-tocopherol and TBHQ, finding that these antioxidants have a regulating effect on the insulation nature of the oil, with alpha-tocopherol showing a more effective synergistic effect. Higher breakdown voltage and greater stability were observed in oils with the addition of antioxidants in low concentrations, with potential implications for selecting eco-friendly coolants in engineering and industry.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Computer Science, Information Systems
Longzhu Cai
Summary: This paper introduces an embedded resonator method for microwave substrate characterization, which can calculate the effective dielectric constant of the structure and substrate, and determine quality factors. Experimental results show that the method has high extraction accuracy.
Article
Engineering, Electrical & Electronic
Erica Silva Pinto, Gabriel Almeida Santos, Paulo Henrique Vieira Magalhaes, Alan Kardek Rego Segundo
Summary: This paper presents a system for measuring iron ore moisture on a conveyor belt, which has vertical and parallel movement capabilities, allowing real-time and in situ measurements. The system uses the capacitive method to determine the dielectric constant of the iron ore for moisture measurement.
IEEE SENSORS JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Azim Uddin, Diana Estevez, Rabia Khatoon, Faxiang Qin
Summary: With the miniaturization and integration of electronic components, the demand for low-cost flexible composites with temperature-stable high dielectric constant and low loss has increased. This study developed silicone elastomer composites based on hydrothermally grown MoS2 on tissue paper-derived cellulose carbon (CC). The composites showed high dielectric constant and low loss, as well as flexibility and temperature stability, making them attractive for microstrip antenna applications and extreme environment electronics.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
H. Guran Unal, Kamil Sacilik
JOURNAL OF FOOD PROCESS ENGINEERING
(2011)
Article
Food Science & Technology
H. Guran Unal, Kamil Sacilik
JOURNAL OF FOOD PROCESSING AND PRESERVATION
(2011)
Article
Chemistry, Physical
Nevzat Konar, Sevim Dalabasmaz, Ender Sinan Poyrazoglu, Nevzat Artik, Ahmet Colak
JOURNAL OF SUPERCRITICAL FLUIDS
(2014)
Article
Horticulture
Maksut Baris Eminoglu, Ugur Yegul, Kamil Sacilik
Article
Food Science & Technology
Y. B. Oztekin, K. Sacilik
ITALIAN JOURNAL OF FOOD SCIENCE
(2020)
Article
Agricultural Engineering
Koc Mehmet Tugrul, Ayhan Kangal, Ahmet Colak
AMA-AGRICULTURAL MECHANIZATION IN ASIA AFRICA AND LATIN AMERICA
(2011)
Article
Engineering, Chemical
Kamil Sacilik
JOURNAL OF FOOD ENGINEERING
(2007)
Article
Engineering, Chemical
Kamil Sacilik, Celik Tarimci, Ahmet Colak
JOURNAL OF FOOD ENGINEERING
(2007)
Article
Engineering, Chemical
Kamil Sacilik, Ahmet Konuralp Elicin, Guran Unal
JOURNAL OF FOOD ENGINEERING
(2006)
Article
Engineering, Chemical
K Sacilik, R Keskin, AK Elicin
JOURNAL OF FOOD ENGINEERING
(2006)
Article
Agricultural Engineering
K Sacilik, C Tarimci, A Colak
BIOSYSTEMS ENGINEERING
(2006)
Article
Food Science & Technology
Koeksal Demir, Kamil Sacilik
JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT
(2010)
Article
Engineering, Chemical
Ri Zhang, Shasha Zhang, Mengyan Ding
Summary: A thin liquid film method is proposed to evaluate sand erosion in annular flow. This method considers the direct interaction between the liquid film and gas core, as well as the entrainment and deposition of droplets. The erosion rate is calculated by considering the effects of liquid entrainment and particle velocity decay. The method is fully verified by comparing with experimental data.
Article
Engineering, Chemical
Yu Suo, Xianheng Su, Wenyuan He, Xiaofei Fu, Zhejun Pan
Summary: This research investigates the mechanical properties of sandstone-shale composite through orthogonal experimental method and discrete element simulation. The results show that different lithologies and thickness ratios can affect the strength and fracture mode of the composite rock samples.
Article
Engineering, Chemical
Maurizio Troiano, Andrea El Hassanin, Roberto Solimene, Alessia Teresa Silvestri, Fabrizio Scala, Antonino Squillace, Piero Salatino
Summary: This study investigates the potential of Fluidized Bed Finishing (FBF) for square flat AlSi10Mg specimens manufactured via Laser-Powder Bed Fusion (L-PBF) additive manufacturing technology. The results show that good finishing can be achieved using rotation-assisted tests, with a maximum reduction of surface roughness by 67%. Steel particles are found to be the most effective bed material.
Review
Engineering, Chemical
Ningbo Song, Wanzhong Yin, Jin Yao
Summary: Seawater's dissolved salts and minerals have various effects on the flotation process, including influencing the characteristics and behavior of flotation factors, as well as affecting the surface of sulfide minerals. In most cases, seawater has adverse effects on the flotation of sulfide minerals, but these effects can be mitigated by adjusting the reagents.
Article
Engineering, Chemical
Kaiqiao Wu, Shuxian Jiang, Victor Francia, Marc-Olivier Coppens
Summary: In rectangular and cylindrical annular fluidized beds, pulsating gas flow can create regular bubble patterns, overcoming challenges seen in conventional units. This study provides new opportunities for modularization of fluidized bed operations.
Article
Engineering, Chemical
Shuo Li, Huili Zhang, Jan Baeyens, Miao Yang, Zehao Li, Yimin Deng
Summary: The paper assesses the behavior of cohesive Geldart C-type particles when fluidized by air with the aid of vibration. It determines that mechanical vibration is a simple and effective method to improve the fluidity of cohesive particles during fluidization.
Article
Engineering, Chemical
Zhenfei Feng, Qingyuan Zhang, Shanpan Liang, Zhenzhou Li, Fangwen Guo, Jinxin Zhang, Ding Yuan
Summary: A new micro/mini-channel heat sink (MCHS) with a combined structure of longitudinal and transverse vortex generators is designed, using Al2O3 nanofluid as the working medium. The study explores the effects of transverse vortex generator shape and longitudinal vortex generator angle on the hydraulic and thermal characteristics, comprehensive performance, entropy generation, and exergy efficiency. The results show that the triangular transverse vortex generator improves the comprehensive performance and exergy efficiency. Combined with the longitudinal vortex generator, the MCHS achieves the best comprehensive performance, entropy generation, and exergy efficiency when the Reynolds number is 742.
Article
Engineering, Chemical
Kostas Giannis, Christoph Thon, Guoqing Yang, Arno Kwade, Carsten Schilde
Summary: This study presents a 3D convolutional neural network (3D-CNN) methodology for generating realistic 3D models of particles. The method trains on 2D projections of particle images to predict their 3D shapes, and evaluates the accuracy of the predictions using Fourier shape descriptors (FSDs). This methodology has wide applications in particle shape analysis.
Article
Engineering, Chemical
Zheng-qing Zhou, Lu-jia Chai, Yu-long Zhang, Ya-bin Wang, Ze-chen Du, Tian-yi Wang, Yu-zhe Liu
Summary: The dynamic oxidation and shell-breaking processes of aluminum nanoparticles (ANPs) during heating were studied using in situ transmission electron microscopy. The results revealed that the changes in shell thickness can be divided into three stages, and the active aluminum content of ANP decreased before shell-breaking.
Article
Engineering, Chemical
Fulei Chen, Huaqing Ma, Zihan Liu, Lianyong Zhou, Yongzhi Zhao
Summary: A particle breakage model based on the particle replacement scheme, using the polyhedral model to describe particles, is proposed in this work to accurately describe the breakage of a large number of particles. Additionally, a fast-cutting algorithm is proposed to reproduce the size distribution of progeny particles determined by the breakage model. The validation and simulation results show satisfactory accuracy, efficiency, and stability of the algorithm.
Review
Engineering, Chemical
Matteo Errigo, Christopher Windows-Yule, Massimiliano Materazzi, Dominik Werner, Paola Lettieri
Summary: Gas-solid fluidized-bed systems have advantages in terms of chemical reaction efficiency and temperature control, making them widely used in industrial applications. However, the design, scale-up, and optimization of these complex units are limited by the lack of deep physical understanding. Non-invasive and non-intrusive diagnostic techniques provide a way for researchers to study these systems without affecting the flow field or directly contacting the medium under study.
Article
Engineering, Chemical
Saeed Fateh, Mohammad Behshad Shafii, Mohammad Najafi, Cyrus Aghanajafi
Summary: Applying a magnetic field to ferrofluids alters their flow characteristics and enhances heat transfer. Through visualization and quantitative investigation, it is found that the magnetic field influences the flow patterns and velocity profiles, improving fluid mixing and vorticity magnitude.
Article
Engineering, Chemical
Lei Gao, Bingbing Wei, Xiaochuan Hu, Zaifeng Yao, Yiwen Fang, Xuejian Gao
Summary: In this study, a numerical model of sand triaxial test was established using discrete element software PFC3D, and an indoor triaxial test was conducted to calibrate the numerical model. The influence of microscopic parameters on the macroscopic mechanical response of sand was analyzed. The results showed that the friction coefficient had the greatest impact on the peak strength and residual strength of the sand's stress-strain curve, and it was positively correlated. The normal tangential stiffness ratio was negatively correlated, while the porosity and boundary flexibility stiffness had minimal influence on it.
Article
Engineering, Chemical
Xuan Liu, Jie Gong, Kai Jiang, Xiaojuan Lai, Yu Tian, Kang Zhang
Summary: This study aimed to improve the performance of lignite coal water slurries (CWSs) by synthesizing a series of three-arm amphiphilic block copolymers. By controlling the relative molecular weight, hydrophilic/hydrophobic ratio, and ionic group content, the apparent viscosity of CWSs was significantly reduced and the static stability was improved. Thermogravimetric testing and XPS analysis were conducted to reveal the mechanism behind the improved performance.
Article
Engineering, Chemical
Lanka Dinushke Weerasiri, Daniel Fabijanic, Subrat Das
Summary: Fluidization at low pressure offers significant benefits for the fine chemical industry. This study investigates the behavior of bubbles and bed expansion under low pressure conditions. It is found that lower pressure leads to larger bubbles, increased bubble quantity, and higher aspect ratio. The predictability is affected by the inhomogeneous fluidization, but low pressure fluidization can generate similar bubble sizes with lower fluidizing mass compared to atmospheric pressure.