Case Studies in Thermal Engineering最新文献

{"title":"Numerical study on the performance of pintle controlled solid rocket motor based on fluid-thermal-structure interaction","authors":"Jianing Duan, Feng Feng, Hongbin Yan, Yiwen Guan","doi":"10.1016/j.csite.2025.107202","DOIUrl":"https://doi.org/10.1016/j.csite.2025.107202","url":null,"abstract":"To accurately predict the performance of pintle controlled solid rocket motors (PCSRM), a fluid-thermal-structure interaction (FTSI) numerical model is developed. First, by comparing the FTSI method, conventional numerical method, and empirical formulas, the dynamic performance of PCSRM under FTSI effects was investigated. Next, the effects of pintle stroke and pintle material on PCSRM performance were analyzed. Finally, the underlying mechanism of FTSI effects on PCSRM performance was revealed. The results show that the FTSI method successfully captures the influence of pintle deformation on PCSRM performance. Specifically, compared to the conventional numerical method, the thrust coefficient increases by 0.20 %–1.51 %, the thrust increases by 0.47 %–6.22 %, and the total pressure recovery coefficient decreases by 1.97 %–5.02 %. Severe convective heat transfer within the PCSRM rapidly raises the temperature of the pintle head above 2300 K, causing significant FTSI deformation that reduces the equivalent throat area by up to 9.90 %. Additionally, the FTSI deformation of the pintle alters the flow field structure, resulting in a maximum increase of 15.46 % in chamber pressure and 5.12 % in mass flow rate. The FTSI method better reflects real conditions, providing reliable support for the precise prediction of PCSRM performance.","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"5 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261721","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}

{"title":"Corrigendum to “A new cooling method for photovoltaic module using U-shape aluminum fins and circular copper tubes: An indoor experiment and economic study” [Case Stud. Therm. Eng. 72 (2025) 106396]","authors":"Ihsan Okta Harmailil, Sakhr M. Sultan, Ahmad Fudholi, Masita Mohammad, C.P. Tso","doi":"10.1016/j.csite.2025.107207","DOIUrl":"https://doi.org/10.1016/j.csite.2025.107207","url":null,"abstract":"","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"339 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261695","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}

{"title":"Design and performance evaluation of a multi-layer heat exchanger for cruise ship energy systems","authors":"Sudhanshu Pandey, Ilpo Kulmala, Hannu Salmela, Mikko Kultanen","doi":"10.1016/j.csite.2025.107197","DOIUrl":"https://doi.org/10.1016/j.csite.2025.107197","url":null,"abstract":"Heat exchangers in cruise ship energy systems must achieve high thermal effectiveness while maintaining acceptable pressure losses in limited space. This study investigates how fin arrangement, material, thickness, and layer count influence the performance of multi-layer heat exchangers, and whether an artificial neural network (ANN) can provide reliable predictions of pressure drop for design optimization. A phased methodology was applied, beginning with single-layer benchmarking through experiments to evaluate straight and staggered fins in PETG and aluminum, followed by validated CFD simulations of three and eight-layer exchangers. Results showed that staggered fins increased outlet temperature by 6–12 % compared to straight fins, though at the cost of a 5–10 % increase in pressure drop. Aluminum fins improved thermal effectiveness by 15–20 % relative to PETG depending on thickness, while thinner fins reduced hydraulic resistance. Three-layer exchangers were more effective at lower NTU, whereas eight-layer designs provided superior performance at higher NTU due to increased surface area. Experimental validation confirmed energy balance within ±5 %, and a fitted correlation reproduced CFD with ≈0.3 % deviation. The ANN achieved <ce:italic>R</ce:italic><ce:sup loc=\"post\"><ce:italic>2</ce:italic></ce:sup> = 0.998 and <ce:italic>RMSE</ce:italic> ≈ 10, offering fast hydraulic predictions. The findings provide design guidance for selecting fin geometry, material, and layer configuration in compact maritime heat exchangers.","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"102 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261697","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}

{"title":"Performance and emission analysis of CRDI diesel engine using methyl ester derived from Spirulina platensis as a third-generation biofuel","authors":"Venkata Ramana Menda, Joga Rao Bikkavolu, Gandhi Pullagura, Debabrata Barik, Prabhu Paramasivam, Abinet Gosaye Ayanie","doi":"10.1016/j.csite.2025.107187","DOIUrl":"https://doi.org/10.1016/j.csite.2025.107187","url":null,"abstract":"In recent advancements, alternative fuel strategies have emerged as promising complements to conventional diesel, offering both enhanced engine efficiency and reduced environmental impact. This research looks at how a ternary mix of Spirulina platensis-derived biodiesel, regular diesel, and n-heptane performs and how much it emits. The blend also enhanced with graphene nanoplatelets (GNPs) at levels of 50, 75, 100 mg/L. We tested the nano-additive mixes on twin-cylinder CRDI compression ignition engine. FTIR, FESEM, EDX, and XRD tests showed that nano fuel dispersion stability and structural integrity were both good. The TF + GNP75 mix had the best thermal and combustion properties of all studied formulations. At full load, it had a 16.4 % higher brake thermal efficiency and a 12.5 % lower brake specific fuel consumption. Emission testing showed that CO, HC, and smoke emissions were down by 7.8 %, 10.28 %, and 5.26 %, respectively. CO<ce:inf loc=\"post\">2</ce:inf> emissions went up by 13 %, while NO<ce:inf loc=\"post\">x</ce:inf> emissions went down by 9.09 % compared to B20. TF + GNP75 also had a better combustion reaction, with cylinder pressure and heat release rate increasing by 8.83 % and 6.36 %, respectively, compared to clean diesel. These results show that TF + GNP75 is a very promising third-generation biofuel that can be used in CI engines without any hardware changes.","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"20 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261723","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}

{"title":"Cooling of a hot elastic wall in a double vented cavity system by using sinusoidal corrugated porous partition during hybrid nanofluid forced convection and AI-assisted modeling","authors":"Chemseddine Maatki, Fatih Selimefendigil, Lioua Kolsi","doi":"10.1016/j.csite.2025.107188","DOIUrl":"https://doi.org/10.1016/j.csite.2025.107188","url":null,"abstract":"The need for new cooling solutions is growing for thermal management and energy storage in various energy systems. This study proposes a novel cooling system for sinusoidal corrugated porous partition (SCPP) with hybrid nanofluid for hot elastic wall in a double vented cavity (VEC) system. Both rigid and elastic wall scenarios are taken into consideration in the numerical analysis based on the finite element method (FEM), which is carried out for various values of the left cavity flow Reynolds number (&lt;mml:math altimg=\"si115.svg\" display=\"inline\"&gt;&lt;mml:msub&gt;&lt;mml:mrow&gt;&lt;mml:mtext&gt;Re&lt;/mml:mtext&gt;&lt;/mml:mrow&gt;&lt;mml:mrow&gt;&lt;mml:mi&gt;L&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;/mml:msub&gt;&lt;/mml:math&gt; between 200 and 1000), wave amplitude (&lt;mml:math altimg=\"si2.svg\" display=\"inline\"&gt;&lt;mml:msub&gt;&lt;mml:mrow&gt;&lt;mml:mi&gt;A&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;mml:mrow&gt;&lt;mml:mi&gt;f&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;/mml:msub&gt;&lt;/mml:math&gt; between 0.01 and 0.25), and wave number (&lt;mml:math altimg=\"si54.svg\" display=\"inline\"&gt;&lt;mml:msub&gt;&lt;mml:mrow&gt;&lt;mml:mi&gt;N&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;mml:mrow&gt;&lt;mml:mi&gt;f&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;/mml:msub&gt;&lt;/mml:math&gt; between 1 and 6) of SCPP. A cooling model is developed using an artificial neural network (ANN) approach, and comparisons with computational fluid dynamics (CFD) simulations are executed. In contrast to the rigid scenario, the vortex size below the entrance port is impacted at the maximum &lt;mml:math altimg=\"si115.svg\" display=\"inline\"&gt;&lt;mml:msub&gt;&lt;mml:mrow&gt;&lt;mml:mtext&gt;Re&lt;/mml:mtext&gt;&lt;/mml:mrow&gt;&lt;mml:mrow&gt;&lt;mml:mi&gt;L&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;/mml:msub&gt;&lt;/mml:math&gt; due to the heated elastic wall’s significant deformation. In the case of rigid walls, the average Nusselt number (Nu) with &lt;mml:math altimg=\"si115.svg\" display=\"inline\"&gt;&lt;mml:msub&gt;&lt;mml:mrow&gt;&lt;mml:mtext&gt;Re&lt;/mml:mtext&gt;&lt;/mml:mrow&gt;&lt;mml:mrow&gt;&lt;mml:mi&gt;L&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;/mml:msub&gt;&lt;/mml:math&gt; is enhanced by 132%, whereas in the case of elastic walls, it is enhanced by 255%. The cooling performance improvement with the highest corrugation amplitude is 7.2% for rigid case and 12.4% for elastic case. The average Nu variation increases by 3% for elastic scenarios and by 9% for rigid scenarios when the wave number of corrugation is changed. The optimal cooling performance is achieved with the ANN model for rigid walled configuration at (&lt;mml:math altimg=\"si115.svg\" display=\"inline\"&gt;&lt;mml:msub&gt;&lt;mml:mrow&gt;&lt;mml:mtext&gt;Re&lt;/mml:mtext&gt;&lt;/mml:mrow&gt;&lt;mml:mrow&gt;&lt;mml:mi&gt;L&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;/mml:msub&gt;&lt;/mml:math&gt;, &lt;mml:math altimg=\"si2.svg\" display=\"inline\"&gt;&lt;mml:msub&gt;&lt;mml:mrow&gt;&lt;mml:mi&gt;A&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;mml:mrow&gt;&lt;mml:mi&gt;f&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;/mml:msub&gt;&lt;/mml:math&gt;, &lt;mml:math altimg=\"si54.svg\" display=\"inline\"&gt;&lt;mml:msub&gt;&lt;mml:mrow&gt;&lt;mml:mi&gt;N&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;mml:mrow&gt;&lt;mml:mi&gt;f&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;/mml:msub&gt;&lt;/mml:math&gt;)=(1000, 0.25, 3), and for elastic walled configuration at (&lt;mml:math altimg=\"si115.svg\" display=\"inline\"&gt;&lt;mml:msub&gt;&lt;mml:mrow&gt;&lt;mml:mtext&gt;Re&lt;/mml:mtext&gt;&lt;/mml:mrow&gt;&lt;mml:mrow&gt;&lt;mml:mi&gt;L&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;/mml:msub&gt;&lt;/mml:math&gt;, &lt;mml:math altimg=\"si2.svg\" display=\"inline\"&gt;&lt;mml","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"51 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261720","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}

{"title":"Optimal design on deep-buried non-circular tunnels under the influence of high geothermal temperature based on analytical calculation","authors":"Hai Shi, Ying Yang, Guoce Liu, Zhenghao Yu, Mingzhou Bai, Jun Hou","doi":"10.1016/j.csite.2025.107134","DOIUrl":"https://doi.org/10.1016/j.csite.2025.107134","url":null,"abstract":"This study explores the stress and deformation behavior of surrounding rock when excavating deeply buried, non-circular tunnels in high-geothermal environments. First, we derived the excavation mapping function for the tunnel cross-section using complex variable theory and conformal transformation, solved via a composite optimization algorithm. Next, we determined separate mapping functions for the geothermal-affected zone and the lining reinforcement region using a mixed penalty function approach. Stress and displacement fields in each domain were then obtained by solving the harmonic equation under prescribed boundary conditions and applying thermal-elastic theory alongside the Airy thermal-stress function. By invoking stress superposition and the separation of variables, we derived closed-form analytical solutions for stress and displacement throughout the model. Parameter studies reveal that both radial and tangential stresses in the lining increase markedly with rising temperature. Moreover, the introduction of a thermal insulation layer substantially reduces these stresses; when the insulation thickness reaches approximately 10–15 % of the lining thickness, additional stress reduction becomes marginal and stabilizes. These findings provide critical analytical guidance for controlling deformation and ensuring the structural safety of deep-buried, non-circular tunnels subject to high geothermal temperatures.","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"12 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261724","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}

{"title":"Electric water heat supply of apartment buildings with cryptocurrency generation units","authors":"Alexey Toropov","doi":"10.1016/j.csite.2025.107194","DOIUrl":"https://doi.org/10.1016/j.csite.2025.107194","url":null,"abstract":"Energy costs for heating and hot water preparation account for up to 80 % of a household's total energy consumption. As cities continue to grow, there is an increasing need to replace existing district heating technologies in apartment buildings with new systems based on electric energy. However, a major drawback of electric heating systems is their high tariff rates. Utilizing cryptocurrency mining units offers a way to reduce the economic burden of heating and hot water preparation.","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"208 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261731","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}

{"title":"Reduced mechanism identification and cool flame analysis of ammonia/dimethyl ether premixed combustion","authors":"Tao Cai, Qiang Ni, Yiming Xu, Aikun Tang","doi":"10.1016/j.csite.2025.107175","DOIUrl":"https://doi.org/10.1016/j.csite.2025.107175","url":null,"abstract":"Both ammonia and dimethyl ether (DME) are renewably low-carbon fuels, and their blend is a promising alternative for modern energy and transportation systems. The identification of accurate reaction mechanisms is essential to reveal NH<ce:inf loc=\"post\">3</ce:inf>/DME combustion performance. By removing unimportant species and revisiting kinetic parameters of key reactions, this work develops the most simplified chemical mechanism reported so far, featuring 50 species and 212 reactions, whose fidelity is shown to be quite satisfactory over a range of combustion regimes. It is found that the predictive ability of the reduced mechanism is more satisfying with elevated inlet pressures. The temperature and pressure exponents of laminar burning velocities are also analyzed. Further, as low-temperature ignition properties are concerned, the agreement between experimental data and predictions by the proposed model is generally equal to, or better than, that of other reaction mechanisms. Finally, it is applied to preliminarily shed light on cool flame and emission characteristics. Different combustion characteristics under ultra-lean and rich conditions are identified, characterized by radicals’ formation and temperature profiles, which have important implications for engine ignition and flame stability. In general, the simplified mechanism has a wide versatility and provides an efficient alternative means for the interpretation of NH<ce:inf loc=\"post\">3</ce:inf>/DME combustion.","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"120 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261726","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}

{"title":"Analysis of heat treatment forced thermal and structural changes of aerogel insulation blanket – a case study","authors":"Akos Lakatos","doi":"10.1016/j.csite.2025.107200","DOIUrl":"https://doi.org/10.1016/j.csite.2025.107200","url":null,"abstract":"Aerogels, renowned for their ultralight structure and low thermal conductivity, have emerged as highly effective super-insulation materials. This paper examines their thermal properties, thermal stability, and various engineering applications. \"Super Insulation Materials\" such as vacuum insulation panels and aerogels, are frequently used to describe these materials. Aerogels and related super-insulation materials (SIMs) have garnered significant attention due to their ultra-low thermal conductivity and applications in building, industrial, and cryogenic insulation. Although most long-term thermal parameters are unknown, the aforementioned goods have far superior thermal insulating qualities. In the paper, we will discuss the research on the thermal stability of Slentex aerogel blanket samples as they mature through heat treatments (150 °C and 250 °C for 1 day). Various techniques will be used to monitor the changes in the thermal characteristics (thermal diffusion and volumetric heat capacity). Thermal conductivity measurement results show a stable thermal insulation capability, while the specific heat capacity changes slightly. From these thermal values, diffusion and volumetric heat capacity were derived. The results showed a decrease in thermal diffusivity of about 3–4 %, while the volumetric heat capacity increased. Microscopic and visual analysis revealed surface oxidation, while the DSC results presented a substantial and continuous increase (strong endothermic process) in the heat flow curve.","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"154 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261725","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}

{"title":"Boiling heat transfer characteristics and numerical simulation in microchannel two-phase flow with complex overload vector","authors":"Yu Wang, Zihang Xu, Jiang Sha, Haigang Ren, Ben Wang","doi":"10.1016/j.csite.2025.107181","DOIUrl":"https://doi.org/10.1016/j.csite.2025.107181","url":null,"abstract":"Proton exchange membrane fuel cells (PEMFCs) find extensive use in hydrogen powered aircraft systems owing to their advantageous low operational temperatures and high power density characteristics. Thermal accumulation during operation induces temperature elevation, which detrimentally influences PEMFC performance metrics. Phase-change cooling methodologies effectively mitigate the inherent limitations associated with conventional thermal management approaches. This research numerically investigates boiling heat transfer phenomena and flow behavior within microchannels under varying overload conditions. Analysis of gravitational vector effects on microchannel thermal performance during boiling processes reveals two critical relationships. Heat transfer degradation is significantly correlated with the included angle (<ce:italic>β</ce:italic>) between the overload vector and the main flow direction. In addition, reducing the magnitude of overload acceleration (<ce:italic>a</ce:italic>) leads to a premature precipitous decline in the total heat transfer coefficient (<ce:italic>h</ce:italic>) curve. The peak value of the pipeline's curve of <ce:italic>h</ce:italic> will sharply decline as the overload acceleration rises. The connection between <ce:italic>h</ce:italic> and the overload vector is fitted using the boiling heat transfer properties of the microchannel under various overload vectors; the inaccuracy ranges from 0.1 % to 7 %.","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"122 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261842","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}