Powder Technology最新文献_第9页

Effects of mineral powder fillers on the viscoelasticity and creep behavior of an acrylate composite polyurethane binder 矿粉填料对丙烯酸酯复合聚氨酯粘结剂粘弹性和蠕变性能的影响

IF 4.6 2区工程技术

Powder Technology Pub Date : 2026-04-15 Epub Date: 2026-01-28 DOI: 10.1016/j.powtec.2026.122202

Shaochan Duan , Jingxian Cui , Heyu Du , Tao Ma , Yingcheng Luan

{"title":"Effects of mineral powder fillers on the viscoelasticity and creep behavior of an acrylate composite polyurethane binder","authors":"Shaochan Duan , Jingxian Cui , Heyu Du , Tao Ma , Yingcheng Luan","doi":"10.1016/j.powtec.2026.122202","DOIUrl":"10.1016/j.powtec.2026.122202","url":null,"abstract":"<div><div>Mineral powder-filled acrylate composite polyurethane binder (APUB) shows considerable potential for steel bridge deck pavement. However, the mechanisms by which mineral powder filler types and their physicochemical characteristics influence the viscoelasticity and creep behavior of APUB remain inadequately understood. This study selects cement powder, limestone powder, and fly ash as representative fillers, characterizes their physicochemical properties and evaluates their effects on the viscoelasticity and creep behavior of APUB. Furthermore, the linkage between filler characteristics, interfacial interactions, and the macroscopic viscoelastic and creep responses is established. Results indicate that all three fillers enhance the complex modulus (<em>G</em>*) and storage modulus (<em>G</em>´) while reducing the phase angle (<em>δ</em>), with cement powder exhibiting the most pronounced improvement, particularly under high-temperature and low-frequency conditions. Nanoindentation tests confirm that filler/APUB composites exhibit higher hardness, lower creep displacement, a reduced creep stress exponent (<em>n</em>), and a shorter creep retardation time (<em>τ</em><sub>c</sub>), with cement powder within the tested conditions, providing optimal creep resistance. Mechanism analysis reveals that the superiority of cement powder stems from its unique physicochemical characteristics, which synergistically promote strong interfacial adhesion through combined physical interlocking and chemical bonding (Ca-O-C, Si-O-C), directly restraining polymer chains. This study offers practical guidance for developing high-performance APUB mortar and a framework for designing advanced polymer composites.</div></div>","PeriodicalId":407,"journal":{"name":"Powder Technology","volume":"473 ","pages":"Article 122202"},"PeriodicalIF":4.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical analysis of impact hammer cyclic impact breaking performance on hard rock 冲击锤对硬岩循环冲击破碎性能的数值分析

IF 4.6 2区工程技术

Powder Technology Pub Date : 2026-04-15 Epub Date: 2026-01-29 DOI: 10.1016/j.powtec.2026.122209

Huihe Zhao , Hongxiang Jiang , Zijian Wu , Huarui Yang , Xuchang Lu

{"title":"Numerical analysis of impact hammer cyclic impact breaking performance on hard rock","authors":"Huihe Zhao , Hongxiang Jiang , Zijian Wu , Huarui Yang , Xuchang Lu","doi":"10.1016/j.powtec.2026.122209","DOIUrl":"10.1016/j.powtec.2026.122209","url":null,"abstract":"<div><div>Hydraulic impact hammer crushing serves as a vital method in mining and mineral powder processing, but its lower efficiency and the difficulty in effectively measuring energy consumption necessitate further research to determine optimal operating conditions. To address these challenges, this study employed a random substitution program to construct heterogeneous rock models. Utilizing a coupled finite element and discrete element method, along with restart techniques, a numerical model for the cyclic crushing of heterogeneous hard rock by an impact hammer has been established. Subsequently, the accuracy of the numerical model was validated through isoconditional experiments. The impact hammer's rock-crushing performance and energy transfer efficiency were quantitatively evaluated by statistically analyzing the volumes of damaged mineral particles. Additionally, the study explored the influence of natural joints on rock fragmentation and the underlying mechanism of accelerated rock damage under cyclic impact. It also determined the optimal range of cyclic impact cycles and the most effective impact frequency.</div></div>","PeriodicalId":407,"journal":{"name":"Powder Technology","volume":"473 ","pages":"Article 122209"},"PeriodicalIF":4.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-depth CFD simulation of a spray drying process of Indometacin using ethanol as a solvent 以乙醇为溶剂对吲哚美辛喷雾干燥过程进行了深入的CFD模拟

IF 4.6 2区工程技术

Powder Technology Pub Date : 2026-04-15 Epub Date: 2026-01-29 DOI: 10.1016/j.powtec.2026.122217

Dominik Martynek , Luděk Ridvan , Miroslav Šoóš

{"title":"In-depth CFD simulation of a spray drying process of Indometacin using ethanol as a solvent","authors":"Dominik Martynek , Luděk Ridvan , Miroslav Šoóš","doi":"10.1016/j.powtec.2026.122217","DOIUrl":"10.1016/j.powtec.2026.122217","url":null,"abstract":"<div><div>Spray drying is a promising method in the pharmaceutical industry, enabling continuous manufacturing of amorphous solid solutions. To reduce the dependence on trial-and-error experiments in this work, we performed a detailed computational fluid dynamics (CFD) simulation, which allows us to predict the outcome of the spray drying process of indomethacin-PVP K30-ethanol mixture. The developed methodology includes two steps, where in the first step we simulate atomisation process, characterise the size distribution of formed droplets, and spraying angle. In the second part, we used calculated droplet size distribution and spraying angle as an input in full spray dryer simulation to predict flow and temperature profiles, properties of produced particles, their drying profile and heat losses. Secondary breakup (Wave model) was found to be required to correctly predict size distribution of formed particles, and an influence of turbulence on the particles was also studied. The proposed method is validated by exploring the effects of varying the process parameters and experimentally confirming the predictions of the simulations. Key outcomes that are predicted include powder size distribution (achieving at maximum 23%F relative standard deviation against the experiments for all control and validation datasets), humidity and outlet temperature (predicted with accuracy of 2.5 °C against the experiment, well within the uncertainty of the experimental measurement). This work demonstrates the potential of computational fluid dynamics as a reliable tool to optimise the process of spray drying in pharmaceutical manufacturing.</div></div>","PeriodicalId":407,"journal":{"name":"Powder Technology","volume":"473 ","pages":"Article 122217"},"PeriodicalIF":4.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization on pressure pulsation and erosion for a solid-liquid two-phase multistage centrifugal pump 固液两相多级离心泵压力脉动与冲蚀优化

IF 4.6 2区工程技术

Powder Technology Pub Date : 2026-04-15 Epub Date: 2026-01-28 DOI: 10.1016/j.powtec.2026.122213

Baoling Cui , Yifan Lian , Zhifeng Lin , Zhongcun Su , Yuzhen Jin

{"title":"Optimization on pressure pulsation and erosion for a solid-liquid two-phase multistage centrifugal pump","authors":"Baoling Cui , Yifan Lian , Zhifeng Lin , Zhongcun Su , Yuzhen Jin","doi":"10.1016/j.powtec.2026.122213","DOIUrl":"10.1016/j.powtec.2026.122213","url":null,"abstract":"<div><div>Unsteady pressure pulsations and erosion caused by the high-speed rotation of the impeller are primary contributors to failure in solid-liquid two-phase multistage centrifugal pumps. In this study, impeller blades were optimized to reduce pressure pulsation intensity in the vaneless region between the impeller and guide vanes, and to minimize impeller erosion under design flow conditions with a particle concentration of 3% and a particle diameter of 0.3 mm. The optimization strategy encompassing the first, middle, and last stages was proposed based on a comparative analysis of performance and internal flow characteristics of each stage. The solid-liquid two-phase flow field was numerically simulated using CFD-DPM method. The Kriging surrogate model based on response-surface methodology was integrated with NSGA-II algorithm to achieve global optimization and produce an optimized blade profile. Near the blade leading edge, near-wall particle accumulation diminished as particles migrated toward the mid-passage region, coinciding with increased turbulent kinetic energy in this area. The elevated relative velocity at the blade trailing edge reduced the particle residence time within the impeller passages. Furthermore, the local backflow and rotor-stator interaction were alleviated by decreasing the guide vane inlet angle. As a result, the average pressure pulsation intensity in the vaneless region between the impeller and guide vanes decreased by 3.175%, and the average erosion rate of the impeller declined by 13.444%.</div></div>","PeriodicalId":407,"journal":{"name":"Powder Technology","volume":"473 ","pages":"Article 122213"},"PeriodicalIF":4.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laser powder bed fusion of nano-SiO₂/AlSi10Mg composites for lightweight optical applications 用于轻型光学应用的纳米sio₂/AlSi10Mg复合材料的激光粉末床融合

IF 4.6 2区工程技术

Powder Technology Pub Date : 2026-04-15 Epub Date: 2026-01-27 DOI: 10.1016/j.powtec.2026.122180

Zhijian Feng , Wei Han , Thorsten H. Becker , Lingbao Kong

{"title":"Laser powder bed fusion of nano-SiO₂/AlSi10Mg composites for lightweight optical applications","authors":"Zhijian Feng , Wei Han , Thorsten H. Becker , Lingbao Kong","doi":"10.1016/j.powtec.2026.122180","DOIUrl":"10.1016/j.powtec.2026.122180","url":null,"abstract":"<div><div>Laser powder bed fusion (LPBF) technology holds significant application potential in the manufacturing of lightweight, high-precision aluminum alloy components, yet challenges remain in controlling melt pool behavior and suppressing defects. This study introduced 0.5 wt% nano-SiO₂ into the AlSi10Mg powder system to enhance powder flowability and systematically evaluated its effects on the density, microstructure, and mechanical properties of LPBF-formed parts. Results indicate that nano-SiO₂ addition significantly improved powder flowability, achieving powder flow rate of 122 s/50 g, with a slight increase in bulk density, thereby promoting uniform powder spreading. Microstructural analysis revealed that nano-SiO₂ promoted heterogeneous nucleation and a minor influence on grain size. However, increased melt viscosity led to higher porosity in the parts, accompanied by localized oxide enrichment and microcrack formation. Compared to unmodified AlSi10Mg, the composite samples exhibited ∼16% and ∼ 48% reductions in tensile strength and elongation, respectively, while showing a slight increase in microhardness. Compression testing of the lattice structure revealed reduced peak load while retaining progressive densification characteristics. These results demonstrate the coupled influence of nano-SiO₂ on powder characteristics, melt pool dynamics, and macroscopic properties in LPBF-fabricated nano-SiO₂/AlSi10Mg composites, providing insights for the optimization of ceramic-modified aluminum alloy powders.</div></div>","PeriodicalId":407,"journal":{"name":"Powder Technology","volume":"473 ","pages":"Article 122180"},"PeriodicalIF":4.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of modified magnesium hydroxide using CO2 and investigation of its properties CO2改性氢氧化镁的制备及其性能研究

IF 4.6 2区工程技术

Powder Technology Pub Date : 2026-04-15 Epub Date: 2026-01-23 DOI: 10.1016/j.powtec.2026.122169

Zheng-Hao Li , Li Zhang , Yu-Cui Yang , Xue-Yuan Guo , Ye Sheng , Bing Zhou

{"title":"Preparation of modified magnesium hydroxide using CO2 and investigation of its properties","authors":"Zheng-Hao Li , Li Zhang , Yu-Cui Yang , Xue-Yuan Guo , Ye Sheng , Bing Zhou","doi":"10.1016/j.powtec.2026.122169","DOIUrl":"10.1016/j.powtec.2026.122169","url":null,"abstract":"<div><div>In this study, carbon dioxide (CO<sub>2</sub>) and magnesium oxide (MgO) were employed as raw materials to develop a method for preparing multilayer plate-like magnesium hydroxide (MH) via CO<sub>2</sub> utilization, followed by surface modification with stearic acid (SA). The products were characterized by using Powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), and Fourier-transform infrared spectroscopy (FTIR) to analyze their crystal plane distribution, morphology, and functional groups. In addition, thermogravimetric analysis (TGA) was conducted to investigate the decomposition temperatures. Furthermore, molecular dynamics simulations were performed to elucidate the structural arrangement of SA on the MH surface. This work proposes a novel strategy for synthesizing active MH by employing gaseous CO<sub>2</sub> instead of conventional industrial precursors, thereby reducing environmental pollution, lowering production costs, and enabling a milder reaction process. The findings provide theoretical guidance for the subsequent development of cost-effective and environmentally friendly industrial-scale production.</div></div>","PeriodicalId":407,"journal":{"name":"Powder Technology","volume":"473 ","pages":"Article 122169"},"PeriodicalIF":4.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development and analysis of micro-performance dynamics of rotary blade using discrete element method 基于离散元法的旋转叶片微性能动力学研究与分析

IF 4.6 2区工程技术

Powder Technology Pub Date : 2026-04-15 Epub Date: 2026-01-30 DOI: 10.1016/j.powtec.2026.122210

Rohit Dilip Nalawade , Krishna Pratap Singh , Ajay Kumar Roul , Shital Sonawane , Abhishek Patel , Aman Mahore , Mohit Kumar , Kanupriya Chaudhary , Pramod Shelake

{"title":"Development and analysis of micro-performance dynamics of rotary blade using discrete element method","authors":"Rohit Dilip Nalawade , Krishna Pratap Singh , Ajay Kumar Roul , Shital Sonawane , Abhishek Patel , Aman Mahore , Mohit Kumar , Kanupriya Chaudhary , Pramod Shelake","doi":"10.1016/j.powtec.2026.122210","DOIUrl":"10.1016/j.powtec.2026.122210","url":null,"abstract":"<div><div>Tillage operations in black cotton soils are associated with high energy consumption due to their pronounced moisture-dependent shrink-swell behavior. This study proposes a macro-geometric modification of the conventional L-shaped rotary blade to reduce penetration resistance by altering the soil failure mechanism from compression-dominated to tensile–shear-dominated modes. The micro-mechanical interactions of soil model and blades with sweepback angles of 0°, 6°, 12°, and 18° were investigated using Discrete Element Method (DEM) simulations. To represent the elastoplastic and cohesive behavior of the soil, a hysteretic spring contact model coupled with a linear cohesion model was used. The DEM parameters were calibrated using Cone Penetration Test (CPT). The numerical results were validated against soil-bin experiments (R<sup>2</sup> = 0.97). The results reveal a clear inverse relationship between sweepback angle and penetration torque. The 18° sweepback angle reduced peak torque by 21.98% and average penetration torque by 20.94% compared with the conventional 0° blade, primarily due to the reduced attack surface area and the associated wedging effect. In addition, the number of soil particles thrown decreased by 25.16%, indicating a reduction in kinetic energy transfer to the soil mass. These findings demonstrate the capability of calibrated DEM simulations to capture micro-mechanical interactions between tool geometry and cohesive granular media. It suggests that incorporating a sweepback angle in L-shaped rotary blades can improve energy efficiency in rotary tillage operations.</div></div>","PeriodicalId":407,"journal":{"name":"Powder Technology","volume":"473 ","pages":"Article 122210"},"PeriodicalIF":4.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the relationship between coal fracture characteristics and particle migration and the evolution law of seepage characteristics 煤体裂隙特征与颗粒迁移关系及渗流特征演化规律研究

IF 4.6 2区工程技术

Powder Technology Pub Date : 2026-04-15 Epub Date: 2026-01-30 DOI: 10.1016/j.powtec.2026.122204

Shuyang Sun , He Yang , Zhen Liu , Jinrui Hu , Weiqun Wang , Shilong Zhang , Shuangyue Wang , Wenxin Li

{"title":"Study on the relationship between coal fracture characteristics and particle migration and the evolution law of seepage characteristics","authors":"Shuyang Sun , He Yang , Zhen Liu , Jinrui Hu , Weiqun Wang , Shilong Zhang , Shuangyue Wang , Wenxin Li","doi":"10.1016/j.powtec.2026.122204","DOIUrl":"10.1016/j.powtec.2026.122204","url":null,"abstract":"<div><div>The migration of coal particles during coal seam water injection strongly affects the permeability and clogging of coal fractures. In this study, water injection experiments were conducted on fractures filled with fine coal particles using a visual experimental system to observe particle migration and fracture evolution. The effects of flow rate (30–40 mL/min) and filling mass (2–3.5 g) on fracture structural evolution were analyzed. Fracture morphology was quantified via fractal dimension analysis, and a Kozeny-Carman permeability model was developed. Results show that with increasing flow rate and time, porosity rose from 6.0% to 36.5%, and fractal dimension D₂ from 1.67 to 1.95, exhibiting a strong positive correlation (R<sup>2</sup> = 0.9048). Correspondingly, the permeability coefficient increased by over two orders of magnitude (from 4.9 × 10<sup>−4</sup> cm/s to 6.3 × 10<sup>−2</sup> cm/s), suggesting that water flushing and particle rearrangement restored seepage capacity. With a higher mass-to-size ratio (m/d), the permeability difference between filled and unfilled fractures decreased. These results quantitatively reveal the coupled mechanism of water flow, particle migration, and structural evolution, providing a theoretical basis for optimizing water injection in coal seams.</div></div>","PeriodicalId":407,"journal":{"name":"Powder Technology","volume":"473 ","pages":"Article 122204"},"PeriodicalIF":4.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mass flow rate prediction for gas-controlled hopper discharge of free-flowing granular materials 自由流动颗粒物料气控料斗卸料质量流量预测

IF 4.6 2区工程技术

Powder Technology Pub Date : 2026-04-15 Epub Date: 2026-01-28 DOI: 10.1016/j.powtec.2026.122190

Tingwen Li , Erik Delsman , Sreekanth Pannala

引用次数: 0

Investigation of ferronickel concentrate oxidation behavior and prevention strategies during drying 镍铁精矿干燥过程氧化行为及预防策略研究

IF 4.6 2区工程技术

Powder Technology Pub Date : 2026-04-15 Epub Date: 2026-01-28 DOI: 10.1016/j.powtec.2026.122207

Wei Lv , Fanmao Wang , Siegfried Gautama , Mikaella Brillantes , Frederick D. Ford , Samuel Marcuson , Manqiu Xu , Mansoor Barati

{"title":"Investigation of ferronickel concentrate oxidation behavior and prevention strategies during drying","authors":"Wei Lv , Fanmao Wang , Siegfried Gautama , Mikaella Brillantes , Frederick D. Ford , Samuel Marcuson , Manqiu Xu , Mansoor Barati","doi":"10.1016/j.powtec.2026.122207","DOIUrl":"10.1016/j.powtec.2026.122207","url":null,"abstract":"<div><div>Ferronickel serves as an essential feedstock to produce stainless steel. A ferronickel concentrate assaying 28% Ni was obtained via two-stage thermal treatment of ultramafic Ni sulfide concentrate followed by direct grinding and sieving without magnetic separation. However, microstructural and compositional analysis revealed that post-upgrading oxidation led to the formation of a Ni-wustite phase, comprising up to 13% of the ferronickel concentrate and accounting for 7.3% of the total Ni. The oxidation behavior of ferronickel under different grinding and drying conditions revealed that the formation of Ni-wustite predominantly occurs during the drying stage rather than during early wet grinding. Excessive grinding accelerates oxidation even drying is conducted in a non-oxidizing atmosphere. Drying under a non-oxidizing atmosphere or after solvent immersion significantly suppresses Ni-wustite formation. Furthermore, rinsing ferronickel concentrate with Na<sub>2</sub>CO<sub>3</sub> solution prior to drying is recommended, as it forms a passivation layer on the ferronickel surface, creating a physical and chemical barrier that prevents oxygen contact and thereby inhibits oxidation. The key findings of this study provide guidance for selecting appropriate ferronickel grinding and drying conditions, enabling the maximal recovery of ferronickel alloys liberated by direct grinding without magnetic separation.</div></div>","PeriodicalId":407,"journal":{"name":"Powder Technology","volume":"473 ","pages":"Article 122207"},"PeriodicalIF":4.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0