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Temperature-Based Pre-Diagnosis of Reciprocating Compressors via K-Means Clustering 基于k均值聚类的往复式压缩机温度预诊断
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-18 DOI: 10.1002/ceat.70317
Feng Wang, Xinyue Gu, Kaidi Zhang, Qingliang Zhao
{"title":"Temperature-Based Pre-Diagnosis of Reciprocating Compressors via K-Means Clustering","authors":"Feng Wang,&nbsp;Xinyue Gu,&nbsp;Kaidi Zhang,&nbsp;Qingliang Zhao","doi":"10.1002/ceat.70317","DOIUrl":"https://doi.org/10.1002/ceat.70317","url":null,"abstract":"<div>\u0000 \u0000 <p>Complex operating conditions and multiphysics coupling in reciprocating compressors generate high-dimensional monitoring data, challenging fine-grained diagnosis in efficiency and accuracy. A temperature-feature-based pre-diagnosis method using <i>K</i>-means clustering is proposed as a front-end screening stage. Multisource temperature data were fused, statistical features were extracted, and robustness was enhanced using a denoising autoencoder with normalization. Tests covered 32 experimental operating conditions across 10 operating and fault-state categories on an L-type reciprocating compressor. Five evaluation indices identified <i>K</i> = 10 as optimal, whereas blocked cross-validation assessed model stability. The method achieved 96.88% clustering matching accuracy, high clustering purity, and a 63.1% weighted diagnostic search-space reduction ratio, effectively reducing diagnostic complexity and supporting a hierarchical “coarse-to-fine” fault diagnosis framework.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994364","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}
引用次数: 0
Critical Role of Carbon Support Vacancy in Au-Catalyzed Acetylene Hydrochlorination: A DFT Study 碳载体空位在金催化乙炔加氢氯化反应中的关键作用：DFT研究
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-18 DOI: 10.1002/ceat.70314
Huajiang Sun, Zewei Dou, Wenjing Xu, Tianbo Fan, Tao Zhang, Hongfan Guo
{"title":"Critical Role of Carbon Support Vacancy in Au-Catalyzed Acetylene Hydrochlorination: A DFT Study","authors":"Huajiang Sun,&nbsp;Zewei Dou,&nbsp;Wenjing Xu,&nbsp;Tianbo Fan,&nbsp;Tao Zhang,&nbsp;Hongfan Guo","doi":"10.1002/ceat.70314","DOIUrl":"https://doi.org/10.1002/ceat.70314","url":null,"abstract":"<div>\u0000 \u0000 <p>Acetylene hydrochlorination (AH), an important synthesis route for vinyl chloride, traditionally uses a toxic mercury catalyst. Carbon-supported Au catalyst is considered the most promising alternative catalyst for mercury; however, the role of support defects in Au-catalyzed AH is not very clear yet. In this work, the role of the vacancy on carbon support was studied using density functional theory. The study is focused on the effect on metallic-Au catalysis for AH, as the reported work is basically toward various AuCl<i><sub>x</sub></i> or cationic Au species. The theoretical results well elucidate how the presence of support vacancy greatly decreases AH reaction barrier, and how it improves Au-support interaction that may inhibit Au from agglomerating or increase catalyst lifetime. This work provides the theoretical support for developing Au catalysts used for AH.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994359","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}
引用次数: 0
Parallel Chemical Activation and Surface Modification Activated Carbon for Lead Adsorption 平行化学活化及表面改性活性炭对铅的吸附
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-18 DOI: 10.1002/ceat.70313
Stephanie Ying Lin Wong, Jia Yen Lai, Lock Hei Ngu
{"title":"Parallel Chemical Activation and Surface Modification Activated Carbon for Lead Adsorption","authors":"Stephanie Ying Lin Wong,&nbsp;Jia Yen Lai,&nbsp;Lock Hei Ngu","doi":"10.1002/ceat.70313","DOIUrl":"https://doi.org/10.1002/ceat.70313","url":null,"abstract":"<p>Conventional activated carbon (AC) production can be costly and complicated. This research proposes parallel simultaneous chemical activation with phosphoric acid and surface modification with nitric acid to produce AC for lead removal. Conventional AC showed a 7.70% higher adsorption capacity of 62.41 mg/g than PAM AC at 57.95 mg/g, indicating that the proposed method successfully synthesized AC with comparable adsorption performance. Isotherm model analysis indicated that the best-fit model describing adsorption phenomena for both ACs is the Langmuir isotherm, based on higher linear correlation coefficients and its suitability for describing the chemisorption of Pb<sup>2+</sup> onto AC. The economic evaluation found that adsorption using PAM AC offered a lower overall adsorption cost of $21.11/g Pb<sup>2+</sup>, a 36.56% reduction compared to conventional AC ($33.28/g Pb<sup>2+</sup>), due to comparable adsorption capacity and significantly lower raw material costs.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.70313","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tailored ETS-4 Molecular Gate Thermal Contractibility via Crystallization Time for N2/CH4 Separation 基于结晶时间的ETS-4分子门热收缩性能研究
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-08 DOI: 10.1002/ceat.70305
Yingqian Wang, Yongyi Wu, Cheng Peng, Wenbin Li, Donghui Zhang
{"title":"Tailored ETS-4 Molecular Gate Thermal Contractibility via Crystallization Time for N2/CH4 Separation","authors":"Yingqian Wang,&nbsp;Yongyi Wu,&nbsp;Cheng Peng,&nbsp;Wenbin Li,&nbsp;Donghui Zhang","doi":"10.1002/ceat.70305","DOIUrl":"https://doi.org/10.1002/ceat.70305","url":null,"abstract":"<div>\u0000 \u0000 <p>The separation of methane and nitrogen is critical for upgrading low-grade natural gas. However, their similar physicochemical properties render efficient separation extremely challenging. This study explores the application of Engelhard titanosilicate-4 for N<sub>2</sub>/CH<sub>4</sub> separation. Framework thermal contractibility is tailored by regulating crystallization time. Thermal activation enables precise pore-size modulation, affording a superior separation selectivity of 15.1. Furthermore, the material properties are evaluated through structural characterization, adsorption isotherm measurements, and kinetic tests. Finally, in the simulation of a two-bed six-step vacuum pressure swing adsorption (VPSA) process, the obtained methane product has a purity exceeding 95%, validating the promising practical application potential of this adsorbent.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904065","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}
引用次数: 0
Biopolymer Multilayer Structure as a Barrier System for Packaging Paper 生物聚合物多层结构作为包装纸的阻隔系统
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-08 DOI: 10.1002/ceat.70309
Natalia Suseno, Emma Savitri, Akbarningrum Fatmawati, Adam Jaya, Edward Marcelino, Valerie Giannette
{"title":"Biopolymer Multilayer Structure as a Barrier System for Packaging Paper","authors":"Natalia Suseno,&nbsp;Emma Savitri,&nbsp;Akbarningrum Fatmawati,&nbsp;Adam Jaya,&nbsp;Edward Marcelino,&nbsp;Valerie Giannette","doi":"10.1002/ceat.70309","DOIUrl":"https://doi.org/10.1002/ceat.70309","url":null,"abstract":"<div>\u0000 \u0000 <p>The transition to sustainable food packaging has accelerated the development of polyfluoroalkyl substance (PFAS)-free paper barrier coatings as safer alternatives to fluorinated compounds. However, the influence of multilayer architecture on barrier performance remains poorly understood. This study investigates chitosan–starch–zein multilayer coatings to improve the oil barrier properties of paper. The optimum formulation with 20 wt% zein achieved Kit ratings of 6 (C–S–Z20) and 9 (S–C–Z20), dynamic contact angles of ∼50°, and Cobb<sub>60</sub> values of 15.20 and 14.70 g/m<sup>2</sup>, respectively. Scanning electron microscopy (SEM) revealed dense, homogeneous multilayer structures, whereas Fourier-transform infrared spectroscopy (FTIR) showed that enhanced performance resulted from hydrogen-bond interactions. Higher zein contents reduced barrier performance, and increasing coating layers alone did not consistently improve barrier properties, highlighting the importance of optimized composition and microstructural integrity for effective PFAS-free paper barriers.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904067","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}
引用次数: 0
Colloidal Stability and Rheological Behavior of h-BN Nanoparticles in Transmission Oil h-BN纳米颗粒在传动油中的胶体稳定性和流变行为
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-08 DOI: 10.1002/ceat.70311
Sherzod Abdurakhmonov, Mastura Aripova, Odiljon Abdurakhmonov, Nurbek Rakhimov, Utkirjon Sharopov, Zukhra Kadirova, Shokhrukh Sayfulloev, Salohiddin Ramazanov, Wang Hay Kan, Tonni Agustiono Kurniawan
{"title":"Colloidal Stability and Rheological Behavior of h-BN Nanoparticles in Transmission Oil","authors":"Sherzod Abdurakhmonov,&nbsp;Mastura Aripova,&nbsp;Odiljon Abdurakhmonov,&nbsp;Nurbek Rakhimov,&nbsp;Utkirjon Sharopov,&nbsp;Zukhra Kadirova,&nbsp;Shokhrukh Sayfulloev,&nbsp;Salohiddin Ramazanov,&nbsp;Wang Hay Kan,&nbsp;Tonni Agustiono Kurniawan","doi":"10.1002/ceat.70311","DOIUrl":"https://doi.org/10.1002/ceat.70311","url":null,"abstract":"<div>\u0000 \u0000 <p>Nanocrystalline hexagonal boron nitride (h-BN) nanoparticles were synthesized from boric acid and urea by two-stage thermal treatment and dispersed in automatic transmission fluid (ATF) DEXRON III using sodium dodecyl sulfate (SDS). Structural characterization confirmed crystalline h-BN with a particle size of 5.4 ± 1.2 nm and <i>d</i>(0 0 2) = 0.332 nm. Increasing h-BN concentration from 0.03 to 0.06 wt.% increased hydrodynamic aggregate size from 10–20 to 1–2 µm, decreased the absolute zeta potential from 35–45 to 8–15 mV, and increased viscosity. The 0.03 wt.% dispersion showed the most favorable colloidal stability and rheological behavior.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904066","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}
引用次数: 0
Hydrodynamic Simulation of Fluidized Beds for Phosphate Reduction in Thermal Phosphoric Acid Process 热磷酸过程中磷酸盐还原流化床流体动力学模拟
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-07 DOI: 10.1002/ceat.70301
Yuxiong Yi, Shuang Zhou, Zhiping Du, Xiaojun Yang, Yigang Ding, Xia Yin
{"title":"Hydrodynamic Simulation of Fluidized Beds for Phosphate Reduction in Thermal Phosphoric Acid Process","authors":"Yuxiong Yi,&nbsp;Shuang Zhou,&nbsp;Zhiping Du,&nbsp;Xiaojun Yang,&nbsp;Yigang Ding,&nbsp;Xia Yin","doi":"10.1002/ceat.70301","DOIUrl":"https://doi.org/10.1002/ceat.70301","url":null,"abstract":"<div>\u0000 \u0000 <p>Fluidized beds offer efficient gas–solid contact and heat/mass transfer for the carbothermal reduction of phosphate ore, yet the high-temperature hydrodynamics remain unclear. In this study, a 3D computational fluid dynamics (CFD) model based on the Euler–Euler two-fluid method, coupled with Gidaspow drag and <i>k</i>–<i>ε</i> turbulence models, was developed to investigate gas–solid behavior in a fluidized-bed reactor. The model was validated with literature data and applied to analyze effects of particle diameter, gas velocity, restitution coefficient, and wall roughness coefficient. Results show stable fluidization is achieved when gas drag balances particle gravity. Optimal conditions include particle diameter of 150 µm and gas velocity of 0.9 m/s, ensuring uniform solids distribution while minimizing entrainment and deposition. A restitution coefficient of 0.9 and wall roughness coefficient of 0.5 further enhance stability. This study provides guidance for reactor optimization in low-carbon yellow phosphorus production.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903942","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}
引用次数: 0
Development and Experimental Examination of Biobased Flame Retardants for Polylactic Acid 聚乳酸生物基阻燃剂的研制与实验研究
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-08-22 DOI: 10.1002/ceat.70303
Mariia Kuznetsova, Olga Zilke, Philip Mörbitz, Klaus Opwis, Karlheinz Bretz, Tatiana Andreiko
{"title":"Development and Experimental Examination of Biobased Flame Retardants for Polylactic Acid","authors":"Mariia Kuznetsova,&nbsp;Olga Zilke,&nbsp;Philip Mörbitz,&nbsp;Klaus Opwis,&nbsp;Karlheinz Bretz,&nbsp;Tatiana Andreiko","doi":"10.1002/ceat.70303","DOIUrl":"https://doi.org/10.1002/ceat.70303","url":null,"abstract":"<p>An examination was undertaken into the properties of an innovative flame retardant (FR) biocompatible composite material based on phytate and poly(lactic acid) or polylactide (PLA). This research outlined optimal synthesis conditions for chitosan phytate (CSPhy), PLA-modified CSPhy, and polyvinyl amine phytate and identified key findings such as usage of novel water-insoluble intumescent FRs as additives which improved PLA properties and combustion behavior. End composites achieved a greater flammability classification, UL-94 V-0, compared to pure PLA L105 with class UL-94 V-2. Composites of PLA L105 with CSPhy exhibited the most advantageous properties along with the best self-extinguishing characteristics.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 8","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.70303","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148848539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Computational Study of the Implosion of a Food Storage Tank 食品储罐内爆的计算研究
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-08-20 DOI: 10.1002/ceat.70307
Felipe Ferreira Rocha, Guilherme Bucci Dias, Guilherme Taques Cimidamore, Gustavo Rocha de Medeiros, Juliano Arrais Babuska, Leriane Reis Kemita, Bruno Ramos, Luis Fernando Novazzi, Gustavo Vieira Olivieri
{"title":"A Computational Study of the Implosion of a Food Storage Tank","authors":"Felipe Ferreira Rocha,&nbsp;Guilherme Bucci Dias,&nbsp;Guilherme Taques Cimidamore,&nbsp;Gustavo Rocha de Medeiros,&nbsp;Juliano Arrais Babuska,&nbsp;Leriane Reis Kemita,&nbsp;Bruno Ramos,&nbsp;Luis Fernando Novazzi,&nbsp;Gustavo Vieira Olivieri","doi":"10.1002/ceat.70307","DOIUrl":"https://doi.org/10.1002/ceat.70307","url":null,"abstract":"<p>Steam-based cleaning in the food industry often occurs under inert atmospheres. In a documented incident, a storage tank imploded after a cleaning procedure, reaching a pressure of 0.981 bar due to rapid pressure drop caused by condensation. This study investigates the failure mechanisms through structural and thermodynamic analyses. The tank structure was evaluated via finite-element simulation and normative estimation, and a mathematical model was developed to describe the cooling and condensation process. The implosion dynamic was simulated using a custom code and process simulation. Structural analysis suggested failure at 0.981 bar, with major deformation at the top. Dynamic simulations predicted an implosion time of 30.0–30.7 min, closely matching the observed 31.0 min.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 8","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.70307","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148784928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermal-Hydraulic Performance of Microchannel Heat Sink for Water-Cooled Lithium-Ion Batteries 水冷锂离子电池微通道散热器的热工性能研究
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-08-19 DOI: 10.1002/ceat.70302
Tingbo Hou, Pengda Zeng, Jin Chen, Hao Xu, Zhibiao Tu
{"title":"Thermal-Hydraulic Performance of Microchannel Heat Sink for Water-Cooled Lithium-Ion Batteries","authors":"Tingbo Hou,&nbsp;Pengda Zeng,&nbsp;Jin Chen,&nbsp;Hao Xu,&nbsp;Zhibiao Tu","doi":"10.1002/ceat.70302","DOIUrl":"https://doi.org/10.1002/ceat.70302","url":null,"abstract":"<div>\u0000 \u0000 <p>Electric vehicle lithium-ion batteries generate high thermal loads that require compact, high-efficiency liquid cooling. This work investigates microchannel heat sinks with elliptic reentrant cavities (ellipticity 0.4, 0.6, 0.8, and 1.0) for electric vehicle battery cooling. We integrate them into a full-scale cold plate, couple a Bernardi heat-generation model with conjugate heat-transfer simulations, and validate experimentally. Results show surface temperature decreases along flow; ellipticity = 1.0 gives lowest and most uniform T. At 60 mL/min, raising ellipticity from 0.4 to 1.0 cuts pressure drop from 180.5 to 140.6 Pa and lowers peak T by ∼2.1 K. Vorticity ranks 1.0 &gt; 0.8 &gt; 0.6 &gt; 0.4. Outlet coolant T peaks near 30 mL/min due to competing vortex mixing and thermal capacity. Ellipticity = 1.0 offers the best thermo-hydraulic trade-off, confirmed by performance evaluation criterion (PEC).</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 8","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148784877","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}
引用次数: 0
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