Thermal Science and Engineering Progress最新文献_第5页

Percutaneous transhepatic cholecystic puncture and drainage combined with laparoscopic surgery in the treatment of acute cholecystitis based on medical thermal modeling 基于医学热模型的经皮经肝胆囊穿刺引流术联合腹腔镜手术治疗急性胆囊炎

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress

Pub Date : 2024-11-03 DOI: 10.1016/j.tsep.2024.103031

Hai Jiang , Zhaolei Qiu , Lei Li , Qicong Zhu , Tao Xia , Yucheng Zhou , Yuanyu Wang , Weiwei Jin , Chao Lu , Yiping Mou

Acute cholecystitis is a common acute abdomen, and the traditional treatment includes drug therapy and surgical intervention. With the development of medical technology, percutaneous hepatic puncture cholecystectomy (PTGBD) has been widely used in the treatment of acute cholecystitis. However, how to optimize the treatment effect and reduce complications is still the focus of clinical research. In this study, a certain number of patients with acute cholecystitis were selected to evaluate the heat distribution of their gallbladder and surrounding tissues by medical thermal modeling technology, then percutaneous hepatic puncture cholecystectomy was performed, and laparoscopic cholecystectomy was performed after the condition was stabilized. The results of the study showed that the treatment regimen based on medical thermal modeling significantly shortened the recovery time of patients and reduced the incidence of postoperative complications. Thermal modeling technology can effectively predict the inflammation degree and hemodynamic changes of gallbladder, and provide a reliable basis for personalized treatment. Therefore, the treatment of acute cholecystitis by percutaneous hepatic puncture gallbladder drainage combined with laparoscopic surgery based on medical thermal modeling can effectively improve the treatment effect and reduce complications, and is worthy of promotion and application in clinical practice. Further research will focus on the potential application of thermal modeling in other surgical fields.

急性胆囊炎是一种常见的急腹症，传统治疗方法包括药物治疗和手术治疗。随着医疗技术的发展，经皮肝穿刺胆囊切除术（PTGBD）已广泛应用于急性胆囊炎的治疗。然而，如何优化治疗效果、减少并发症仍是临床研究的重点。本研究选取一定数量的急性胆囊炎患者，通过医学热模型技术评估其胆囊及周围组织的热分布，然后实施经皮肝穿刺胆囊切除术，待病情稳定后再实施腹腔镜胆囊切除术。研究结果表明，基于医学热建模的治疗方案大大缩短了患者的康复时间，降低了术后并发症的发生率。热模型技术能有效预测胆囊的炎症程度和血流动力学变化，为个性化治疗提供可靠依据。因此，基于医学热建模的经皮肝穿刺胆囊引流术联合腹腔镜手术治疗急性胆囊炎，能有效提高治疗效果，减少并发症，值得在临床上推广应用。进一步的研究将聚焦于热建模在其他外科领域的潜在应用。

{"title":"Percutaneous transhepatic cholecystic puncture and drainage combined with laparoscopic surgery in the treatment of acute cholecystitis based on medical thermal modeling","authors":"Hai Jiang , Zhaolei Qiu , Lei Li , Qicong Zhu , Tao Xia , Yucheng Zhou , Yuanyu Wang , Weiwei Jin , Chao Lu , Yiping Mou","doi":"10.1016/j.tsep.2024.103031","DOIUrl":"10.1016/j.tsep.2024.103031","url":null,"abstract":"<div><div>Acute cholecystitis is a common acute abdomen, and the traditional treatment includes drug therapy and surgical intervention. With the development of medical technology, percutaneous hepatic puncture cholecystectomy (PTGBD) has been widely used in the treatment of acute cholecystitis. However, how to optimize the treatment effect and reduce complications is still the focus of clinical research. In this study, a certain number of patients with acute cholecystitis were selected to evaluate the heat distribution of their gallbladder and surrounding tissues by medical thermal modeling technology, then percutaneous hepatic puncture cholecystectomy was performed, and laparoscopic cholecystectomy was performed after the condition was stabilized. The results of the study showed that the treatment regimen based on medical thermal modeling significantly shortened the recovery time of patients and reduced the incidence of postoperative complications. Thermal modeling technology can effectively predict the inflammation degree and hemodynamic changes of gallbladder, and provide a reliable basis for personalized treatment. Therefore, the treatment of acute cholecystitis by percutaneous hepatic puncture gallbladder drainage combined with laparoscopic surgery based on medical thermal modeling can effectively improve the treatment effect and reduce complications, and is worthy of promotion and application in clinical practice. Further research will focus on the potential application of thermal modeling in other surgical fields.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"56 ","pages":"Article 103031"},"PeriodicalIF":5.1,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

A dimensionless model for smoke backflow length prediction with mobile ventilation in tunnel fire 隧道火灾中移动通风的烟气回流长度预测无量纲模型

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress

Pub Date : 2024-11-02 DOI: 10.1016/j.tsep.2024.103026

Yanming Ding , Jiaoxin Mei , Xiang Li , Kaihua Lu , Changhai Li

The smoke in tunnel fire is the main factor that causes casualties. Mobile ventilation technology can effectively control smoke and improve ventilation conditions inside the tunnel through mobile fans, especially emergency rescue. Smoke backflow is an important feature of tunnel fires and the smoke backflow length is used as the evaluation index of the smoke control effect. In this paper, a prediction model of smoke backflow length is studied under mobile ventilation unit (MVU) in tunnel fires. The dimensional analysis method is adopted to deduce the expressions of smoke backflow length. Based on the numerical simulation validated by the experiments, the effects of MVU location, fan flow and fire source heat release rate on backflow length are investigated, respectively. Furthermore, artificial neural network is used for data augmentation to obtain the smoke backflow length in a wider range of data. Eventually, the optimal location for mobile fan is established, and a new dimensionless prediction model of smoke backflow length with MVU is proposed. This model is helpful to provide guidance for smoke control in tunnel fire during emergency rescue.

隧道火灾中的烟雾是造成人员伤亡的主要因素。移动通风技术可以通过移动风机有效控制烟雾，改善隧道内的通风条件，尤其是应急救援。烟气倒流是隧道火灾的一个重要特征，烟气倒流长度是烟气控制效果的评价指标。本文研究了隧道火灾中移动通风装置（MVU）下烟气倒流长度的预测模型。采用尺寸分析法推导烟气倒流长度的表达式。在数值模拟的基础上，通过实验验证，分别研究了 MVU 位置、风机流量和火源热释放率对回流长度的影响。此外，还利用人工神经网络进行数据增强，以获得更大数据范围内的烟气回流长度。最终，确定了移动风机的最佳位置，并提出了一种新的带 MVU 的烟气倒流长度无量纲预测模型。该模型有助于为隧道火灾应急救援中的烟雾控制提供指导。

{"title":"A dimensionless model for smoke backflow length prediction with mobile ventilation in tunnel fire","authors":"Yanming Ding , Jiaoxin Mei , Xiang Li , Kaihua Lu , Changhai Li","doi":"10.1016/j.tsep.2024.103026","DOIUrl":"10.1016/j.tsep.2024.103026","url":null,"abstract":"<div><div>The smoke in tunnel fire is the main factor that causes casualties. Mobile ventilation technology can effectively control smoke and improve ventilation conditions inside the tunnel through mobile fans, especially emergency rescue. Smoke backflow is an important feature of tunnel fires and the smoke backflow length is used as the evaluation index of the smoke control effect. In this paper, a prediction model of smoke backflow length is studied under mobile ventilation unit (MVU) in tunnel fires. The dimensional analysis method is adopted to deduce the expressions of smoke backflow length. Based on the numerical simulation validated by the experiments, the effects of MVU location, fan flow and fire source heat release rate on backflow length are investigated, respectively. Furthermore, artificial neural network is used for data augmentation to obtain the smoke backflow length in a wider range of data. Eventually, the optimal location for mobile fan is established, and a new dimensionless prediction model of smoke backflow length with MVU is proposed. This model is helpful to provide guidance for smoke control in tunnel fire during emergency rescue.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"56 ","pages":"Article 103026"},"PeriodicalIF":5.1,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Thermal performance analysis of PCM-integrated structures using the resistance-capacitance model: Experiments and numerics 利用电阻-电容模型分析 PCM 一体化结构的热性能：实验和数值分析

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress

Pub Date : 2024-11-02 DOI: 10.1016/j.tsep.2024.103019

Inzamam Ahmad , Ravinder kumar , Uddipta Ghosh , Atul Bhargav , Rachid Bennacer , Mohammed El Ganaoui

While holding significant potential to reduce cooling energy requirements in buildings, the incorporation of phase-change materials in building envelopes requires information regarding their diurnal and seasonal behaviour through high-fidelity simulations. However, utilizing short-term simulations and experimentation using state-of-the-art models for such a complex configuration does not accurately represent the true heat transfer dynamics of the building. To address this lacuna, we present a physics-based, low computational cost, experimentally and numerically validated resistance–capacitance (RC) model specifically tailored for PCM-encapsulated structures, designed for long-term simulations. The validation of this model is conducted through in-house experiments. Additionally, we support the credibility of our RC model by subjecting it to validation through 3D numerical simulations, emphasizing its precision and reliability. Then, we use the validated model to optimize the thermal properties of concrete roofs in hot and dry climates, taking a specific instance of a city in Western India for various geometric configurations as an illustrative example. We find that a PCM with a phase change temperature between 37 and 42 °C can reduce the peak ceiling temperature by up to 10 °C and the peak energy ingress by a factor of 2 or more, in a typical roof element subjected to the prevailing climatic conditions during peak summer. This shows the time constant of the modified roof is effective in delaying and damping the imposed solar insolation. We make specific recommendations on the selection and geometry optimization of PCM-incorporated roof elements.

虽然相变材料在降低建筑物制冷能耗方面具有巨大潜力，但在建筑物外围护结构中使用相变材料需要通过高保真模拟获得有关其昼夜和季节行为的信息。然而，对于如此复杂的配置，使用最先进的模型进行短期模拟和实验并不能准确反映建筑物的真实传热动态。针对这一缺陷，我们提出了一种基于物理学、计算成本低、经过实验和数值验证的电阻-电容（RC）模型，专门为 PCM 封装结构量身定制，用于长期模拟。该模型通过内部实验进行了验证。此外，我们还通过三维数值模拟对 RC 模型进行验证，强调其精确性和可靠性，从而为模型的可信度提供支持。然后，我们使用经过验证的模型来优化干热气候条件下混凝土屋顶的热性能，并以印度西部某城市的一个具体实例为例来说明各种几何配置。我们发现，相变温度介于 37 ℃ 和 42 ℃ 之间的 PCM 可以将顶棚的峰值温度降低 10 ℃，并将峰值能量摄入量降低 2 倍或更多。这表明改良屋顶的时间常数能有效延迟和抑制外加的太阳日照。我们对融入 PCM 的屋顶构件的选择和几何形状优化提出了具体建议。

{"title":"Thermal performance analysis of PCM-integrated structures using the resistance-capacitance model: Experiments and numerics","authors":"Inzamam Ahmad , Ravinder kumar , Uddipta Ghosh , Atul Bhargav , Rachid Bennacer , Mohammed El Ganaoui","doi":"10.1016/j.tsep.2024.103019","DOIUrl":"10.1016/j.tsep.2024.103019","url":null,"abstract":"<div><div>While holding significant potential to reduce cooling energy requirements in buildings, the incorporation of phase-change materials in building envelopes requires information regarding their diurnal and seasonal behaviour through high-fidelity simulations. However, utilizing short-term simulations and experimentation using state-of-the-art models for such a complex configuration does not accurately represent the true heat transfer dynamics of the building. To address this lacuna, we present a physics-based, low computational cost, experimentally and numerically validated resistance–capacitance (<em>RC</em>) model specifically tailored for PCM-encapsulated structures, designed for long-term simulations. The validation of this model is conducted through in-house experiments. Additionally, we support the credibility of our <em>RC</em> model by subjecting it to validation through 3D numerical simulations, emphasizing its precision and reliability. Then, we use the validated model to optimize the thermal properties of concrete roofs in hot and dry climates, taking a specific instance of a city in Western India for various geometric configurations as an illustrative example. We find that a PCM with a phase change temperature between 37 and 42 °C can reduce the peak ceiling temperature by up to 10 °C and the peak energy ingress by a factor of 2 or more, in a typical roof element subjected to the prevailing climatic conditions during peak summer. This shows the time constant of the modified roof is effective in delaying and damping the imposed solar insolation. We make specific recommendations on the selection and geometry optimization of PCM-incorporated roof elements.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"56 ","pages":"Article 103019"},"PeriodicalIF":5.1,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Thermal performance analysis of a novel letter-type fin liquid cooling plate based on the field synergy principle and the second law of thermodynamics 基于场协同原理和热力学第二定律的新型字母型鳍片液体冷却板的热性能分析

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress

Pub Date : 2024-11-02 DOI: 10.1016/j.tsep.2024.103027

Furen Zhang, Jiahui Tao, Huan Gou, Xuejiang Huang

In order to expand more forms of liquid-cooled plate fin construction, based on the traditional geometric fins and letter-type fins, a new idea of constructing a new type of letter-type fins by the geometric expansion method is proposed, and then a fin structure design with better heat transfer performance than the traditional geometric fins is explored. Firstly, the validity of the CFD model and method is verified by heat dissipation experiments. On this basis, the flow behavior and heat transfer performance of 6 letter-type fin structures at different Reynolds numbers are numerically investigated, and the synergism and thermal irreversibility of the flow and temperature fields are discussed and analyzed. According to the findings, the field synergy of the new letter-shaped fins is more significant and effectively reduced the irreversibility of heat transfer. In addition, the combined thermal performance analysis shows that the combined heat performance of C-type fins is better when the Reynolds number range is between 49.85–199.4 (HTPF = 1.098–1.57), and the combined thermal performance of T-type fins is better when the Reynolds number range is 249.25–398.8 (HTPF = 1.03–1.07). Secondly, in order to improve the liquid-cooled plate’s heat performance the paper discussed and optimizes the combination mode of C- and T-type letter fins. To further improve the liquid-cooled plate’s thermal performance, on the basis of the optimal combination of fins, we discuss the effect of fin break distance on the liquid-cooled plate’s thermal performance. Finally, secondary fins are introduced to further optimize the liquid-cooled plate’s thermal performance. It is found that a reasonable setting of secondary fins can effectively reduce the pressure drop of the liquid cooling plate and improve the comprehensive heat dissipation performance (18.71 %∼32.09 %).

为了拓展更多的液冷板翅片结构形式，在传统几何翅片和字母型翅片的基础上，提出了利用几何扩展法构建新型字母型翅片的新思路，进而探索出一种比传统几何翅片具有更好传热性能的翅片结构设计。首先，通过散热实验验证了 CFD 模型和方法的有效性。在此基础上，对 6 种字母型鳍片结构在不同雷诺数下的流动行为和传热性能进行了数值研究，并讨论和分析了流场和温度场的协同性和热不可逆性。研究结果表明，新型字母型鳍片的场协同作用更为显著，有效降低了传热的不可逆性。此外，综合热性能分析表明，当雷诺数范围在 49.85-199.4 之间（HTPF = 1.098-1.57）时，C 型鳍片的综合热性能较好；当雷诺数范围在 249.25-398.8 之间（HTPF = 1.03-1.07）时，T 型鳍片的综合热性能较好。其次，为了提高液冷板的热性能，本文讨论并优化了 C 型和 T 型字母翅片的组合模式。为了进一步提高液冷板的散热性能，在优化翅片组合的基础上，讨论了翅片断裂距离对液冷板散热性能的影响。最后，引入二级翅片进一步优化液冷板的热性能。研究发现，二次翅片的合理设置可有效降低液冷板的压降，提高综合散热性能（18.71 %∼32.09 %）。

{"title":"Thermal performance analysis of a novel letter-type fin liquid cooling plate based on the field synergy principle and the second law of thermodynamics","authors":"Furen Zhang, Jiahui Tao, Huan Gou, Xuejiang Huang","doi":"10.1016/j.tsep.2024.103027","DOIUrl":"10.1016/j.tsep.2024.103027","url":null,"abstract":"<div><div>In order to expand more forms of liquid-cooled plate fin construction, based on the traditional geometric fins and letter-type fins, a new idea of constructing a new type of letter-type fins by the geometric expansion method is proposed, and then a fin structure design with better heat transfer performance than the traditional geometric fins is explored. Firstly, the validity of the CFD model and method is verified by heat dissipation experiments. On this basis, the flow behavior and heat transfer performance of 6 letter-type fin structures at different Reynolds numbers are numerically investigated, and the synergism and thermal irreversibility of the flow and temperature fields are discussed and analyzed. According to the findings, the field synergy of the new letter-shaped fins is more significant and effectively reduced the irreversibility of heat transfer. In addition, the combined thermal performance analysis shows that the combined heat performance of C-type fins is better when the Reynolds number range is between 49.85–199.4 (HTPF = 1.098–1.57), and the combined thermal performance of T-type fins is better when the Reynolds number range is 249.25–398.8 (HTPF = 1.03–1.07). Secondly, in order to improve the liquid-cooled plate’s heat performance the paper discussed and optimizes the combination mode of C- and T-type letter fins. To further improve the liquid-cooled plate’s thermal performance, on the basis of the optimal combination of fins, we discuss the effect of fin break distance on the liquid-cooled plate’s thermal performance. Finally, secondary fins are introduced to further optimize the liquid-cooled plate’s thermal performance. It is found that a reasonable setting of secondary fins can effectively reduce the pressure drop of the liquid cooling plate and improve the comprehensive heat dissipation performance (18.71 %∼32.09 %).</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"56 ","pages":"Article 103027"},"PeriodicalIF":5.1,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142586993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

A multi-scale modeling approach for predicting and mitigating thermal runaway in electric vehicle batteries 预测和缓解电动汽车电池热失控的多尺度建模方法

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress

Pub Date : 2024-11-02 DOI: 10.1016/j.tsep.2024.103029

V.S. Hemakumar , V.J. Chakravarthy , Srigitha Surendranath , Venkateswarlu Gundu , M. Ramkumar Prabhu , S Hari Chandra Prasad

This study presents a unique multi-scale modelling technique for electric vehicle (EV) battery thermal runaway prediction models using electrochemical, thermal, and machine learning approaches. This modelling framework has illuminated the thermal runaway’s physical process and the race between heat production and dissipation at the cell, module, and pack levels.

Experimental evaluation has demonstrated solid predictive performance for each component. The modified pseudo-two-dimensional (P2D) electrochemical model has achieved high voltage prediction accuracy (mean absolute error: 8.5 mV), and the 3D thermal model has captured battery module temperatures with an average error of ± 1.5 °C.

The machine learning model has exhibited 96.8% accuracy, excellent classification precision, and an 18.3-minute early warning time. It was also demonstrated that the integrated multi-scale model outperformed standalone single-scale models with 15% higher prediction accuracy and 32% higher average early warning time.

Based on these findings, adaptive cooling techniques, unique charge/discharge procedures, and early isolation methods were created. Simulations showed that these mitigation techniques decreased thermal runaway occurrence by 78% and severity by 93%. Despite its high computing cost, this technique might improve EV battery safety, guide battery pack design, and accelerate EV adoption, which would cut carbon emissions.

本研究采用电化学、热学和机器学习方法，为电动汽车（EV）电池热失控预测模型提出了一种独特的多尺度建模技术。该建模框架阐明了热失控的物理过程，以及电池、模块和电池组层面的产热和散热之间的竞赛。改进的伪二维（P2D）电化学模型实现了较高的电压预测精度（平均绝对误差：8.5 mV），三维热模型捕捉到的电池模块温度平均误差为 ± 1.5 °C。研究还表明，集成的多尺度模型优于独立的单尺度模型，预测准确率高出 15%，平均预警时间高出 32%。根据这些研究结果，创建了自适应冷却技术、独特的充放电程序和早期隔离方法。模拟显示，这些缓解技术将热失控发生率降低了 78%，严重程度降低了 93%。尽管这项技术的计算成本很高，但它可以提高电动汽车电池的安全性，指导电池组设计，加快电动汽车的普及，从而减少碳排放。

{"title":"A multi-scale modeling approach for predicting and mitigating thermal runaway in electric vehicle batteries","authors":"V.S. Hemakumar , V.J. Chakravarthy , Srigitha Surendranath , Venkateswarlu Gundu , M. Ramkumar Prabhu , S Hari Chandra Prasad","doi":"10.1016/j.tsep.2024.103029","DOIUrl":"10.1016/j.tsep.2024.103029","url":null,"abstract":"<div><div>This study presents a unique multi-scale modelling technique for electric vehicle (EV) battery thermal runaway prediction models using electrochemical, thermal, and machine learning approaches. This modelling framework has illuminated the thermal runaway’s physical process and the race between heat production and dissipation at the cell, module, and pack levels.</div><div>Experimental evaluation has demonstrated solid predictive performance for each component. The modified pseudo-two-dimensional (P2D) electrochemical model has achieved high voltage prediction accuracy (mean absolute error: 8.5 mV), and the 3D thermal model has captured battery module temperatures with an average error of ± 1.5 °C.</div><div>The machine learning model has exhibited 96.8% accuracy, excellent classification precision, and an 18.3-minute early warning time. It was also demonstrated that the integrated multi-scale model outperformed standalone single-scale models with 15% higher prediction accuracy and 32% higher average early warning time.</div><div>Based on these findings, adaptive cooling techniques, unique charge/discharge procedures, and early isolation methods were created. Simulations showed that these mitigation techniques decreased thermal runaway occurrence by 78% and severity by 93%. Despite its high computing cost, this technique might improve EV battery safety, guide battery pack design, and accelerate EV adoption, which would cut carbon emissions.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"56 ","pages":"Article 103029"},"PeriodicalIF":5.1,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Experimental study on stable combustion of pulverized coal stream in a confined small space with air jet 密闭狭小空间内煤粉流喷气稳定燃烧实验研究

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress

Pub Date : 2024-11-02 DOI: 10.1016/j.tsep.2024.103028

Lizhi Meng, Xiaoju Han, Zuodong Liu, Guojia Yao, Hong Tang, Lingfang Sun

Preheated pulverized coal self-sustaining stable combustion burners (PPSCBs) present a promising new avenue for advancing research on ultralow-load stable combustion and achieving ultralow NO_x emissions in thermal power boilers. Self-sustaining ignition burners (SIBs) serve as a continuous ignition heat source for PPSCBs. The self-sustained combustion characteristics of SIBs play a crucial role in the stable operation of PPSCBs. The stable combustion barrel as a practical model for pulverized coal combustion within confined spaces is the crucial component for SIBs to achieve self-sustained combustion and is the focus of the study. In this study, three structural types of combustion barrels are designed, namely the single-stage air forward jet, single-stage air reverse jet, and three-stage air reverse jet. Relevant data are collected to analyze the effect of varying the combustion temperature on pulverized coal within these combustion barrels. The findings reveal that under various experimental conditions, thermal equilibrium is not established for the single-stage air forward jet structure. However, for the single-stage air reverse jet structure, thermal equilibrium durations of 433 s and 335 s are observed under two operating conditions. The three-stage air reverse jet structure demonstrates thermal equilibrium durations of 3158 s and 3408 s under two operating conditions, with the latter maintaining thermal equilibrium until the conclusion of the experiment. Therefore, the arrangement of the air reverse jet has significant effect on combustion stability. The results of this study offer valuable insights for the subsequent development of SIB technologies.

预热煤粉自持稳燃燃烧器（PPSCB）为推进超低负荷稳燃研究和实现火电锅炉超低氮氧化物排放提供了一条前景广阔的新途径。自持续点火燃烧器（SIB）是 PPSCB 的持续点火热源。自持续点火燃烧器的自持续燃烧特性对 PPSCB 的稳定运行起着至关重要的作用。作为煤粉在密闭空间内燃烧的实用模型，稳定燃烧筒是 SIB 实现自持燃烧的关键部件，也是本研究的重点。本研究设计了三种结构类型的燃烧筒，即单级空气正向喷射、单级空气反向喷射和三级空气反向喷射。通过收集相关数据，分析了在这些燃烧筒内改变燃烧温度对煤粉的影响。研究结果表明，在各种实验条件下，单级空气正向喷射结构并没有达到热平衡。然而，对于单级空气反向喷射结构，在两种操作条件下观察到的热平衡持续时间分别为 433 秒和 335 秒。三级空气反向喷射结构在两种工作条件下的热平衡持续时间分别为 3158 秒和 3408 秒，后者一直保持热平衡状态直至实验结束。因此，空气反向射流的布置对燃烧稳定性有显著影响。本研究的结果为后续 SIB 技术的开发提供了宝贵的启示。

{"title":"Experimental study on stable combustion of pulverized coal stream in a confined small space with air jet","authors":"Lizhi Meng, Xiaoju Han, Zuodong Liu, Guojia Yao, Hong Tang, Lingfang Sun","doi":"10.1016/j.tsep.2024.103028","DOIUrl":"10.1016/j.tsep.2024.103028","url":null,"abstract":"<div><div>Preheated pulverized coal self-sustaining stable combustion burners (PPSCBs) present a promising new avenue for advancing research on ultralow-load stable combustion and achieving ultralow NO<sub>x</sub> emissions in thermal power boilers. Self-sustaining ignition burners (SIBs) serve as a continuous ignition heat source for PPSCBs. The self-sustained combustion characteristics of SIBs play a crucial role in the stable operation of PPSCBs. The stable combustion barrel as a practical model for pulverized coal combustion within confined spaces is the crucial component for SIBs to achieve self-sustained combustion and is the focus of the study. In this study, three structural types of combustion barrels are designed, namely the single-stage air forward jet, single-stage air reverse jet, and three-stage air reverse jet. Relevant data are collected to analyze the effect of varying the combustion temperature on pulverized coal within these combustion barrels. The findings reveal that under various experimental conditions, thermal equilibrium is not established for the single-stage air forward jet structure. However, for the single-stage air reverse jet structure, thermal equilibrium durations of 433 s and 335 s are observed under two operating conditions. The three-stage air reverse jet structure demonstrates thermal equilibrium durations of 3158 s and 3408 s under two operating conditions, with the latter maintaining thermal equilibrium until the conclusion of the experiment. Therefore, the arrangement of the air reverse jet has significant effect on combustion stability. The results of this study offer valuable insights for the subsequent development of SIB technologies.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"56 ","pages":"Article 103028"},"PeriodicalIF":5.1,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Experimental study on the effect of Mongolian medicine warming acupuncture on proBDNF-tPA-BDNF balance in depression rats based on thermal imaging monitoring 基于热成像监测的蒙药温针灸对抑郁大鼠proBDNF-tPA-BDNF平衡影响的实验研究

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress

Pub Date : 2024-11-02 DOI: 10.1016/j.tsep.2024.103030

Runa A , Qinglin Bao , Rigenjiya Mu , Muqile Te , Yinchaoketu Sai , Rilebagen Hu , Rentuya Sa , Lengge Si , Gula A

Depression is a kind of mental illness affecting the whole world. Its pathological mechanism is complex, involving neurobiological and psychosocial factors.The depression model rats were randomly divided into control group, warm acupuncture group and drug treatment group. In order to evaluate the local thermal effect of warm acupuncture and moxibustion, real-time temperature changes of rat forebrain were monitored by thermal imaging technology. After the experiment, immunohistochemistry and Western blot were used to detect the expression levels of tPA and BDNF in the forebrain of each group of rats, and the relationship between tPA and BDNF was analyzed. The results of thermal imaging monitoring showed that local forebrain temperature in warm acupuncture group was significantly increased compared with control group (p < 0.05). The ratio of tPA to BDNF was significantly improved in the warm acupuncture and moxibustion group, suggesting that warm acupuncture and moxibustion can effectively regulate the balance of TPA-BDNF. The experimental results based on thermal imaging monitoring suggest that warm acupuncture can improve the balance of TPA-BDNF in the forebrain of depressed rats by promoting the expression of BDNF and tPA in the forebrain, which may provide a new method and mechanism basis for the treatment of depression.

抑郁症是一种影响全世界的精神疾病，其病理机制复杂，涉及神经生物学和社会心理因素。抑郁症模型大鼠随机分为对照组、温针组和药物治疗组。为评价温针灸的局部热效应，采用热成像技术实时监测大鼠前脑的温度变化。实验结束后，采用免疫组化和 Western 印迹法检测各组大鼠前脑中 tPA 和 BDNF 的表达水平，并分析 tPA 和 BDNF 的关系。热成像监测结果显示，与对照组相比，温针灸组大鼠前脑局部温度明显升高（p <0.05）。温针灸组 tPA 与 BDNF 的比值明显提高，提示温针灸能有效调节 TPA-BDNF 的平衡。基于热成像监测的实验结果表明，温针灸可以通过促进大鼠前脑中BDNF和tPA的表达，改善抑郁大鼠前脑中TPA-BDNF的平衡，为抑郁症的治疗提供了新的方法和机制基础。

{"title":"Experimental study on the effect of Mongolian medicine warming acupuncture on proBDNF-tPA-BDNF balance in depression rats based on thermal imaging monitoring","authors":"Runa A , Qinglin Bao , Rigenjiya Mu , Muqile Te , Yinchaoketu Sai , Rilebagen Hu , Rentuya Sa , Lengge Si , Gula A","doi":"10.1016/j.tsep.2024.103030","DOIUrl":"10.1016/j.tsep.2024.103030","url":null,"abstract":"<div><div>Depression is a kind of mental illness affecting the whole world. Its pathological mechanism is complex, involving neurobiological and psychosocial factors.The depression model rats were randomly divided into control group, warm acupuncture group and drug treatment group. In order to evaluate the local thermal effect of warm acupuncture and moxibustion, real-time temperature changes of rat forebrain were monitored by thermal imaging technology. After the experiment, immunohistochemistry and Western blot were used to detect the expression levels of tPA and BDNF in the forebrain of each group of rats, and the relationship between tPA and BDNF was analyzed. The results of thermal imaging monitoring showed that local forebrain temperature in warm acupuncture group was significantly increased compared with control group (p < 0.05). The ratio of tPA to BDNF was significantly improved in the warm acupuncture and moxibustion group, suggesting that warm acupuncture and moxibustion can effectively regulate the balance of TPA-BDNF. The experimental results based on thermal imaging monitoring suggest that warm acupuncture can improve the balance of TPA-BDNF in the forebrain of depressed rats by promoting the expression of BDNF and tPA in the forebrain, which may provide a new method and mechanism basis for the treatment of depression.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"56 ","pages":"Article 103030"},"PeriodicalIF":5.1,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Exploring heat exchange in space: Recent advances in two-phase fluid experiments in microgravity 探索太空中的热交换：微重力两相流体实验的最新进展

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress

Pub Date : 2024-11-01 DOI: 10.1016/j.tsep.2024.103025

Glauco Nobrega , Inês Santos Afonso , Beatriz Cardoso , Reinaldo Rodrigues de Souza , Ana Moita , João Eduardo Ribeiro , Rui A. Lima

Thermal regulation has assumed a central role in space expeditions ever since the inception of Sputnik-1 in 1957. Throughout the years, numerous techniques have been developed to regulate temperatures in spacecraft and space habitats. Initially, passive systems like heat shields and thermal linings were employed, while newer missions embrace active cooling using fluids like ammonia and water. With significant advancements in lunar exploration, thermal management systems have been integrated to ensure effective heat protection and dissipation. Experiments carried out in drop towers, parabolic flights, sounding rockets, and aboard the International Space Station (ISS) have yielded valuable insights into the physics of fluids, pool boiling, boiling in two-phase flow, and cooling phenomena. However, conducting tests in microgravity conditions can lead to lower performances, and accurate numerical simulations remain a challenge. At present, various organizations are conducting research to drive progress in thermal management and enhance the technology of space devices. This review describes the most recent advances in two-phase fluid experiments in microgravity. Furthermore, the major challenges that persist in this field are presented and discussed, along with observations on trends and possibilities for the future of thermal control in space. This review attempts to be a relevant guide for future research and developments on thermal control in space.

自 1957 年人造卫星 1 号问世以来，温度调节一直是太空探险的核心任务。多年来，人们开发了许多技术来调节航天器和太空栖息地的温度。最初采用的是隔热罩和热衬里等被动系统，而较新的任务则使用氨水和水等流体进行主动冷却。随着月球探测的重大进展，热管理系统已被整合到一起，以确保有效的热保护和散热。在落塔、抛物线飞行、探空火箭和国际空间站（ISS）上进行的实验对流体物理、池沸腾、两相流沸腾和冷却现象产生了宝贵的见解。然而，在微重力条件下进行测试可能会降低性能，而且精确的数值模拟仍然是一项挑战。目前，各种组织都在开展研究，以推动热管理的进步，提高空间设备的技术水平。本综述介绍了微重力条件下两相流体实验的最新进展。此外，还介绍和讨论了该领域持续存在的主要挑战，以及对未来太空热控制趋势和可能性的看法。本综述试图成为未来太空热控制研究和发展的相关指南。

{"title":"Exploring heat exchange in space: Recent advances in two-phase fluid experiments in microgravity","authors":"Glauco Nobrega , Inês Santos Afonso , Beatriz Cardoso , Reinaldo Rodrigues de Souza , Ana Moita , João Eduardo Ribeiro , Rui A. Lima","doi":"10.1016/j.tsep.2024.103025","DOIUrl":"10.1016/j.tsep.2024.103025","url":null,"abstract":"<div><div>Thermal regulation has assumed a central role in space expeditions ever since the inception of Sputnik-1 in 1957. Throughout the years, numerous techniques have been developed to regulate temperatures in spacecraft and space habitats. Initially, passive systems like heat shields and thermal linings were employed, while newer missions embrace active cooling using fluids like ammonia and water. With significant advancements in lunar exploration, thermal management systems have been integrated to ensure effective heat protection and dissipation. Experiments carried out in drop towers, parabolic flights, sounding rockets, and aboard the International Space Station (ISS) have yielded valuable insights into the physics of fluids, pool boiling, boiling in two-phase flow, and cooling phenomena. However, conducting tests in microgravity conditions can lead to lower performances, and accurate numerical simulations remain a challenge. At present, various organizations are conducting research to drive progress in thermal management and enhance the technology of space devices. This review describes the most recent advances in two-phase fluid experiments in microgravity. Furthermore, the major challenges that persist in this field are presented and discussed, along with observations on trends and possibilities for the future of thermal control in space. This review attempts to be a relevant guide for future research and developments on thermal control in space.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"56 ","pages":"Article 103025"},"PeriodicalIF":5.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Optimization of building thermal environment in industrial heritage landscape regeneration design simulation based on image visual visualization 基于图像可视化的工业遗产景观再生设计模拟优化建筑热环境

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress

Pub Date : 2024-11-01 DOI: 10.1016/j.tsep.2024.103024

Yuan Gao , Wonjun Chung

With the increasing attention paid to the regeneration design of industrial heritage landscape, how to effectively improve the thermal energy environment in these areas has become a research hotspot. The thermal efficiency of buildings not only affects the energy consumption, but also relates to the comfort of users and the sustainable development of the region. This study aims to explore the optimization method of building thermal energy environment based on image visual visualization, so as to achieve efficient regeneration of industrial heritage landscape, and improve the thermal energy performance and environmental adaptability of buildings through scientific design and simulation means. Through the use of computer aided design (CAD) and building information modeling (BIM) techniques, combined with heat flow simulation and visual image analysis, a detailed thermal environment assessment is carried out for selected industrial heritage buildings. Through data collection and analysis, we take into account factors such as sunlight, ventilation and heat loss in the building to develop an optimization plan. The simulation results show that the energy consumption of buildings with optimized thermal environment design is significantly reduced and the indoor thermal comfort is greatly improved. Visual tools effectively help the design team identify problem areas and provide intuitive data support for all parties during the design process. The optimization method of building thermal energy environment based on image visual visualization provides a new idea for the regeneration design of industrial heritage landscape, which helps to realize the dual goals of protecting the historical value and meeting the needs of modern environmental protection.

随着人们对工业遗产景观再生设计的日益关注，如何有效改善这些地区的热能环境已成为研究热点。建筑的热效率不仅影响能源消耗，还关系到使用者的舒适度和地区的可持续发展。本研究旨在探索基于图像可视化的建筑热能环境优化方法，通过科学的设计和模拟手段，实现工业遗产景观的高效再生，提高建筑的热能性能和环境适应性。通过运用计算机辅助设计（CAD）和建筑信息模型（BIM）技术，结合热流模拟和可视化图像分析，对选定的工业遗产建筑进行了详细的热环境评估。通过数据收集和分析，我们考虑了建筑内的日照、通风和热损失等因素，制定了优化方案。模拟结果表明，经过热环境优化设计的建筑能耗明显降低，室内热舒适度大大提高。可视化工具能有效帮助设计团队发现问题所在，并在设计过程中为各方提供直观的数据支持。基于图像可视化的建筑热能环境优化方法为工业遗产景观的再生设计提供了新思路，有助于实现保护历史价值和满足现代环保需求的双重目标。

{"title":"Optimization of building thermal environment in industrial heritage landscape regeneration design simulation based on image visual visualization","authors":"Yuan Gao , Wonjun Chung","doi":"10.1016/j.tsep.2024.103024","DOIUrl":"10.1016/j.tsep.2024.103024","url":null,"abstract":"<div><div>With the increasing attention paid to the regeneration design of industrial heritage landscape, how to effectively improve the thermal energy environment in these areas has become a research hotspot. The thermal efficiency of buildings not only affects the energy consumption, but also relates to the comfort of users and the sustainable development of the region. This study aims to explore the optimization method of building thermal energy environment based on image visual visualization, so as to achieve efficient regeneration of industrial heritage landscape, and improve the thermal energy performance and environmental adaptability of buildings through scientific design and simulation means. Through the use of computer aided design (CAD) and building information modeling (BIM) techniques, combined with heat flow simulation and visual image analysis, a detailed thermal environment assessment is carried out for selected industrial heritage buildings. Through data collection and analysis, we take into account factors such as sunlight, ventilation and heat loss in the building to develop an optimization plan. The simulation results show that the energy consumption of buildings with optimized thermal environment design is significantly reduced and the indoor thermal comfort is greatly improved. Visual tools effectively help the design team identify problem areas and provide intuitive data support for all parties during the design process. The optimization method of building thermal energy environment based on image visual visualization provides a new idea for the regeneration design of industrial heritage landscape, which helps to realize the dual goals of protecting the historical value and meeting the needs of modern environmental protection.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"56 ","pages":"Article 103024"},"PeriodicalIF":5.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Thermal study of hybrid-type cooling tower with finned tube radiator 带翅片管散热器的混合型冷却塔的热研究

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress

Pub Date : 2024-10-31 DOI: 10.1016/j.tsep.2024.103023

I.N. Madyshev , V.V. Kharkov

High-capacity and efficient cooling of the circulating water is an urgent task for modern industrial enterprises. A hybrid cooling tower has been developed to cool the circulating water, which is cooled by flowing inside an internal tube radiator, the surface of which is constantly wetted with coolant. For intensifying heat transfer processes, the surface of the radiator tubes is provided with circular fins. The paper presents a validated mathematical model of the process of cooling the circulating water in the hybrid cooling tower with the finned radiator. The influence of the material and dimensions of the fins on the thermal characteristics of the hybrid cooling tower is evaluated. It was found that changing the fin material to copper can increase the heat rate and capacity by 65.5 to 71.5 %, depending on the average temperature of the wetting liquid. It was shown that by using copper fins 3.5 mm high and spaced at a pitch of 2 mm, it is possible to increase the heat rate and capacity of the hybrid cooling system up to 5 times compared to smooth tubes of the radiator under the same conditions. It was determined that the selection of rational fin dimensions of radiator tubes ensures almost complete alignment of the thermal resistances of the radiator walls, which can enhance the heat rate and capacity of the hybrid cooling tower.

大容量、高效率地冷却循环水是现代工业企业的一项紧迫任务。我们开发了一种混合冷却塔来冷却循环水，循环水在内部管式散热器中流动，散热器表面不断被冷却剂浸湿。为强化传热过程，散热器管表面设有圆形翅片。本文介绍了带翅片散热器的混合冷却塔中循环水冷却过程的验证数学模型。评估了翅片材料和尺寸对混合冷却塔热特性的影响。结果发现，根据润湿液的平均温度，将鳍片材料改为铜可将热率和容量提高 65.5% 至 71.5%。研究表明，在相同条件下，通过使用高 3.5 毫米、间距为 2 毫米的铜鳍片，可以将混合冷却系统的热率和容量提高到散热器光滑管的 5 倍。据测定，选择合理的散热器管翅片尺寸可确保散热器壁的热阻几乎完全一致，从而提高混合冷却塔的热率和容量。

{"title":"Thermal study of hybrid-type cooling tower with finned tube radiator","authors":"I.N. Madyshev , V.V. Kharkov","doi":"10.1016/j.tsep.2024.103023","DOIUrl":"10.1016/j.tsep.2024.103023","url":null,"abstract":"<div><div>High-capacity and efficient cooling of the circulating water is an urgent task for modern industrial enterprises. A hybrid cooling tower has been developed to cool the circulating water, which is cooled by flowing inside an internal tube radiator, the surface of which is constantly wetted with coolant. For intensifying heat transfer processes, the surface of the radiator tubes is provided with circular fins. The paper presents a validated mathematical model of the process of cooling the circulating water in the hybrid cooling tower with the finned radiator. The influence of the material and dimensions of the fins on the thermal characteristics of the hybrid cooling tower is evaluated. It was found that changing the fin material to copper can increase the heat rate and capacity by 65.5 to 71.5 %, depending on the average temperature of the wetting liquid. It was shown that by using copper fins 3.5 mm high and spaced at a pitch of 2 mm, it is possible to increase the heat rate and capacity of the hybrid cooling system up to 5 times compared to smooth tubes of the radiator under the same conditions. It was determined that the selection of rational fin dimensions of radiator tubes ensures almost complete alignment of the thermal resistances of the radiator walls, which can enhance the heat rate and capacity of the hybrid cooling tower.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"56 ","pages":"Article 103023"},"PeriodicalIF":5.1,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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