International Journal of Heat and Mass Transfer最新文献

{"title":"Evaluation and development of Nusselt number and friction factor correlations for airfoil-fin printed circuit heat exchangers","authors":"Zhe Li ,&nbsp;Sheng Zhang ,&nbsp;Xiaohong Yang","doi":"10.1016/j.ijheatmasstransfer.2025.127512","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127512","url":null,"abstract":"<div><div>The printed circuit heat exchanger (PCHE) is highly valued for its exceptional heat transfer efficiency and pressure resistance. Among the various channel configurations, i.e., the airfoil-fin, straight, zigzag, and S-shaped fin channels, the airfoil-fin channel exhibits superior overall thermal-hydraulic performance. Accurate Nusselt number and friction factor correlations are crucial for the design of airfoil-fin PCHEs, yet the existing correlations exhibit inconsistent forms even for similar conditions and narrow validity ranges. Therefore, it is imperative to identify appropriate correlations over broader ranges and develop new ones if necessary. To address this limitation, this study first systematically evaluates dozens of correlations using approximately 1900 experimental and computational data points spanning broad Reynolds (1.10 × 10²-1.24 × 10⁵) and Prandtl (0.6-24) numbers for various fluids, i.e., supercritical CO₂ and molten salts. Our findings reveal that most correlations have errors up to 40%, with some exceeding 70%, prompting the development of new physics-based correlations incorporating key geometric parameters, including the fin thickness, length, transverse pitch, longitudinal pitch, staggered pitch, and fin height. The newly developed correlations significantly reduce errors to ≤11.29% and ≤ 20.42% for the Nusselt number and friction factor, respectively. These correlations have been further validated by numerical simulations in this study, achieving uncertainties below 10% for Nusselt number and 20% for friction factor. In addition, Artificial Neural Network (ANN) models further reduce the prediction errors to 5.47% for Nusselt number and 4.95% for friction factor. Finally, a multi-objective optimization method, Non-dominated Sorting Genetic Algorithm II (NSGA-II), identifies Pareto-optimal geometric configurations balancing heat transfer and flow resistance, providing guidance for efficient airfoil-fin PCHE designs in high-temperature applications, such as advanced nuclear and concentrated solar energy systems.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"253 ","pages":"Article 127512"},"PeriodicalIF":5.8,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144721654","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":"A simple heat transfer model for annular flow condensation","authors":"Chase Yankowski,&nbsp;Lingnan Lin","doi":"10.1016/j.ijheatmasstransfer.2025.127578","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127578","url":null,"abstract":"<div><div>A simple, physics-based model is proposed to describe the heat transfer in two-phase annular flow during condensation. The model is based on the analogy between single- and two-phase heat transfer, and it considers the thermal resistances for the boundary layers near the wall and the liquid-vapor interface. The model yields an analytical expression for the two-phase multiplier, suggesting that it scales linearly with the inverse of the liquid fraction, which is confirmed by experimental data. The scaling factor is linked to the dimensionless interfacial velocity (i.e., ratio of interface velocity to mean liquid velocity), which can be approximated as a universal constant. The model is compared with a curated database of heat transfer coefficient from the literature. The prediction error is 13.4 % on average for data of small diameters (3.5 mm and smaller) and 17.1 % for all data (including diameters from 0.76 to 14.4 mm). The model achieves prediction accuracy comparable to the existing empirical correlations, while offering the additional benefit of providing a physically grounded framework that can be further adapted and refined. Its implications, limitations, and future refining opportunities are also discussed.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"253 ","pages":"Article 127578"},"PeriodicalIF":5.8,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724081","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":"Information fusion and component concentration decoupled estimation for convection-diffusion processes based on step response","authors":"Zhaohui Mao ,&nbsp;Hong Chen ,&nbsp;Guangjun Wang ,&nbsp;Yalan Ji","doi":"10.1016/j.ijheatmasstransfer.2025.127607","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127607","url":null,"abstract":"<div><div>Online monitoring of component concentrations in convection-diffusion processes has significant practical value. The online measurement data of component concentrations often exhibit substantial noise. This paper proposes a novel method for online estimation of component concentrations in convection-diffusion processes. First, a step response prediction model for component concentrations is developed based on the mechanism of convection-diffusion processes. Subsequently, following the minimum variance estimation criterion from stochastic optimal estimation theory, an optimal time-series gain matrix is constructed by integrating the measured time-series vectors with measurement noise and predicted time-series vectors with process noise. This establishes a decoupled optimal estimation model for component concentrations in convection-diffusion processes. Through the fusion of measured and predicted time-series information, optimal decoupled estimation of component concentrations is achieved. The proposed method successfully realizes decoupled estimation of convection-diffusion systems by the step response model, which effectively overcomes the difficulties faced by the existing information fusion techniques based on state-space models. Notably, the inherent decoupled characteristics of this method provide reliable guarantees for real-time performance in online concentration monitoring of convection-diffusion systems. Based on the method, online decoupled estimation of component concentrations is implemented for a two-dimensional convection-diffusion system, and comparative analysis with the standard Kalman filter method is conducted.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"253 ","pages":"Article 127607"},"PeriodicalIF":5.8,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144721762","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":"Local heat/mass transfer distributions on the bottom surface of a cavity of circular or elliptical cross-section in a turbulent boundary layer flow","authors":"M. Sachdeva,&nbsp;V. Srinivasan","doi":"10.1016/j.ijheatmasstransfer.2025.127494","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127494","url":null,"abstract":"<div><div>Convective mass transport on the bottom surface of right circular and elliptic cylindrical cavities exposed to an approaching boundary layer flow was experimentally studied using a naphthalene sublimation-based technique. Emphasis was given to cavities with diameter/major axis to height ratio (<span><math><mrow><mi>D</mi><mo>/</mo><mi>H</mi></mrow></math></span> or <span><math><mrow><mn>2</mn><mi>a</mi><mo>/</mo><mi>H</mi></mrow></math></span>) less than 6, for which it is known that the streamwise flow shears pass the cavity, impinging on the downstream wall without reattaching on the bottom surface. The effects of Reynolds number, diameter-to-height ratio for circular cavities (0.3–6) and ellipse axis ratio (<span><math><mrow><mn>2</mn><mi>a</mi><mo>/</mo><mn>2</mn><mi>b</mi><mo>=</mo><mn>2</mn><mo>−</mo><mn>7</mn><mo>.</mo><mn>15</mn></mrow></math></span>) for a fixed height and ellipse yaw angle to the freestream were investigated. The mass transfer distributions on the bottom surface are used to infer the flow structure and compared with the previous literature. Overall, circular and elliptical cavities display higher mass transfer relative to their rectangular counterparts on an area-averaged basis, with moderate yaw angles further increasing the transport for elliptical cavities. Mass transfer along the cavity centerline is similar for all shapes without yaw; however, laterally-averaged values differ significantly due to the more complex flow structure in the cylindrical and elliptical cavities relative to their rectangular counterparts.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"253 ","pages":"Article 127494"},"PeriodicalIF":5.0,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713790","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":"Characteristics of the nonequilibrium condensation shock wave of a H2O/CO2 gas mixture in a stator cascade","authors":"Xu Han ,&nbsp;Haibo Shi ,&nbsp;Jie Zhang ,&nbsp;Bochuan Yao ,&nbsp;Xuwei Wu ,&nbsp;Zhonghe Han","doi":"10.1016/j.ijheatmasstransfer.2025.127591","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127591","url":null,"abstract":"<div><div>In the mixed fluid turbine of supercritical water gasification system, H₂O in the final stage channel will condense, and the water droplets generated by condensation can form H₂CO₃ corrosion with CO₂. At the same time, the condensation phase-change process cause local pressure fluctuations, and this dynamic instability will also cause complex shock wave effect. A two-dimensional cascade model is established to numerically study the shock dynamics under superheat and condensation conditions. The main findings reveal different shock modes: the superheat condition produces a penetrating suction side shock (SS) with channel reflection and a pressure side shock (PS), while the condensation condition shows a weakened SS due to phase transition interaction. The concentration of carbon dioxide has a significant impact on these effects. An increase in carbon dioxide concentration reduces the partial pressure of water vapor, lowers the viscosity of the mixed gas, alters the condensation zone, and complicates shock wave interference. According to the shock wave function and pressure step analysis, the proportion of PS in the total shock wave intensity rises from 71.93 % to 77.97 % under overheating conditions since the mass fraction of CO₂ rises from 0 % to 40 %. Under condensation conditions, both SS and PS shock wave intensity enhance with the increase of CO₂ mass fraction. The strength of the PS shock rose from 0.743 to 0.865, while the SS shock increased from 0.048 to 0.084. Even as the SS shock wave's percentage rises, the PS shock wave continues to rule the shock wave system in the flow field.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"253 ","pages":"Article 127591"},"PeriodicalIF":5.0,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713655","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 in thin copper foams enhanced by siphon-controlled water replenishment","authors":"Cai Hu,&nbsp;Shilin Lei,&nbsp;Zijing Li,&nbsp;Shuai Tan,&nbsp;Caihong Wang,&nbsp;Yong Wu","doi":"10.1016/j.ijheatmasstransfer.2025.127593","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127593","url":null,"abstract":"<div><div>Boiling in thin porous metals has the advantages of expanded heat transfer area and reduced hinderance to vapor venting but sufficient liquid replenishment at high heat fluxes remains a challenge. In this work, active siphon flow rather than passive capillary wicking is utilized to achieve boiling in thin copper foams. A thin (thickness, 1 mm) hydrophobic (static water contact angle, 119.5°-122.5°) copper foam (pore density, 40, 60, 95, and 130 PPI) is installed on a horizontal heating surface. A jacketed container acts as a siphon to keep the thin copper foam to be just submerged by water through adjusting flow rate in the siphon. The siphon flow provides active water replenishment for the boiling but imposes little hindrance to vapor venting. Owing to the sufficient water supply, the siphon-controlled boiling in 130 PPI copper foam gives a critical heat flux (CHF) of 456.2 W/cm² and a peak heat transfer coefficient (HTC) of 29.9 W/(cm²·K). In comparison with passive water replenishment, the active water replenishment by the siphon flow promotes CHF and peak HTC by 151 % and 88 %, respectively. The better boiling heat transfer performance is obtained in the copper foam with higher pore density due to the higher surface area and smaller pore size. High-speed camera observations reveal that the smaller pore size reduces bubble lifetime and rupture diameter to improve additional rewetting by droplets of ruptured bubbles. The research offers a general way to actively supply liquid for boiling in thin porous metals and reveals the role of bubble rupture in boiling heat transfer enhancement.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"253 ","pages":"Article 127593"},"PeriodicalIF":5.0,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713335","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":"Optimization of hydrogen compression using non-constant injection regimes in ionic liquid-piston compressors","authors":"Van-Tinh Huynh,&nbsp;Dong Kim","doi":"10.1016/j.ijheatmasstransfer.2025.127583","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127583","url":null,"abstract":"<div><div>In a liquid-piston compressor, injection strategies play a critical role in optimizing operation conditions by influencing both thermal and compression performance. In this study, novel injection strategies, including sinusoidal and non-sinusoidal waveforms (rectangular, triangular, and sawtooth), with varying amplitudes and periods, were implemented at the inlet. These strategies were designed to improve the flow regimes and heat transfer dynamics of hydrogen and ionic liquid within the chamber. At a constant velocity, 1-ethyl-3-methylimidazolium tetrafluoroborate was introduced as an ionic liquid into a cylindrical liquid-piston compressor, increasing hydrogen pressure from an initial 220 bar to a final 752.3 bar, while the hydrogen temperature rose from 298.15 K to 394.2 K during compression. The liquid-piston compressor was modeled three-dimensionally using ANSYS Fluent software and was validated through experimental data. Two-phase simulations employed the finite volume method for solving governing equations and the volume of fluid method for precise interface tracking. The implementation of variable inlet velocity profiles reduced the hydrogen temperature to 392.2 K, compared to 394.2 K in constant velocity scenarios. Furthermore, the minimum power density required for compression was reduced to 4349 kW·m^‒3, compared to 4550.6 kW·m^‒3 under constant velocity conditions. These findings underscore the importance of injection strategies in achieving efficient and effective compressor operation.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"253 ","pages":"Article 127583"},"PeriodicalIF":5.0,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711063","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":"Effect of carbon-based fillers on the thermal conductivity of polymers: A review","authors":"Jialu Tian ,&nbsp;Jian Liu ,&nbsp;Xiaoke Li ,&nbsp;Jianzhong Song ,&nbsp;Liu Yang","doi":"10.1016/j.ijheatmasstransfer.2025.127576","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127576","url":null,"abstract":"<div><div>Polymers are extensively utilized in automotive, medical, and aerospace sectors due to their low density, high strength, ease of processing, and durability. However, their inherently low thermal conductivity limits their effectiveness in heat transfer and dissipation applications. The incorporation of high-thermal-conductivity fillers offers a viable strategy to enhance thermal transport efficiency. Carbon-based materials, characterized by their high crystallinity and exceptional intrinsic thermal conductivity, have shown great promise. When integrated into polymer matrices, these carbon-based fillers facilitate the formation of continuous thermal conduction pathways, significantly improving the overall thermal performance of polymer composites, rendering them highly suitable for thermal management applications. This review provides a comprehensive overview of the effects of incorporating various commonly used carbon-based materials as well as the role of hybridized carbon structures in enhancing composite performance. By optimizing factors such as filler size, concentration, surface modification, dispersion uniformity, orientation within the matrix, interfacial interactions with the polymer, and hybridization strategies, the development of efficient thermal conduction networks can be further promoted. Compared to conventional fillers, carbon-based fillers exhibit superior thermal conductivity, expanding the application scope of polymer composites in areas such as construction, thermal interface materials, electronic devices, and battery thermal management. To fully realize the potential of carbon fillers/polymer composites and extend their practical applications, further theoretical and experimental investigations are essential to achieve a deeper understanding of their thermal transport mechanisms and interfacial interactions.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"253 ","pages":"Article 127576"},"PeriodicalIF":5.0,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711061","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":"Controlling the growth of DNTT thin film on Au substrates by surface roughness, SAM-functionalization, and temperature","authors":"Haoqiang Li ,&nbsp;Weitao Wang ,&nbsp;Weikuan Li ,&nbsp;Wei Zhang ,&nbsp;Yajuan Cheng ,&nbsp;Shiyun Xiong","doi":"10.1016/j.ijheatmasstransfer.2025.127574","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127574","url":null,"abstract":"<div><div>Understanding and controlling the vapor-phase deposition and growth processes of conjugated organic molecules are essential for improving the film quality and device performance of organic thin-film transistors (OTFTs). In this study, we systematically investigate the early-stage growth dynamics of dinaphtho[2,3-<em>b</em>:2′,3′-<em>f</em>]thieno[3,2-<em>b</em>]thiophene (DNTT) thin film on rough Au substrates functionalized with self-assembled monolayers (SAMs) using molecular dynamics simulations. Our investigation focuses on the effects of substrate surface roughness, SAM functionalization, and temperature on the molecular stacking orientation and film morphology. The results show that hydrophilic SAM(-COOH)-functionalized substrates can consistently form high-quality upright DNTT films, except when the substrate channels are too shallow. In contrast, hydrophobic SAM(-CH₃)-functionalized substrates require smaller sizes, narrower gaps, and sufficient channel depths to achieve similar film quality. Free energy calculations highlight the importance of surface roughness and SAM functionalization in driving the formation and reorientation of DNTT molecules. Specifically, larger free energy differences between protruding areas and channel intersections on SAM(-COOH)-functionalized substrates facilitate faster seed nucleus formation and upright film growth. Additionally, higher temperatures promote molecular reorientation, but excessively high temperatures can disrupt molecular ordering and reduce film quality. These findings provide valuable theoretical insights for the fabrication of high-performance OTFTs.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"253 ","pages":"Article 127574"},"PeriodicalIF":5.0,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711129","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":"Multi-objective optimization of a bionic microchannel heat sink based on Fibonacci spiral for electronic components","authors":"Sanli Liu ,&nbsp;Min Chen ,&nbsp;Zhouyi Xiang ,&nbsp;Dingyue Hu ,&nbsp;Yiming Liang ,&nbsp;He Xu ,&nbsp;Xiang Wang ,&nbsp;Ji Li","doi":"10.1016/j.ijheatmasstransfer.2025.127544","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127544","url":null,"abstract":"<div><div>The dramatically increasing power density and integration of modern electronic systems place progressively higher demands on advanced thermal management solutions to mitigate overheating risks. This paper proposes a bionic microchannel heat sink inspired by Fibonacci spiral geometries observed in nature. By integrating response surface methodology with multi-objective genetic algorithm optimization, we systematically quantified the parametric influences, identifying channel width as the dominant factor affecting thermal-hydraulic performance, followed by spiral radius and channel count. In a water-cooling application for a 1 kW heat source with a heating area of 55 mm × 55 mm, a comparative analysis with advanced designs: the uniform pin fin pattern, phyllotactic pin fin pattern, and the topology optimized pattern reveal that the Fibonacci spiral channel provides the best overall performance, with an improvement of at least 6.1 % in relative performance evaluation criteria. At a flow rate of 1 L/min, the optimized design demonstrates 8.8 % reduction in the maximum temperature and 34.6 % improvement in temperature uniformity compared to conventional uniform pin fin channel, achieving these enhancements with only a 16.3 % increase in pressure drop. Overall, this work establishes a nature-inspired design approach, offering actionable guidelines for developing high-performance thermal management systems for high power electronics.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"253 ","pages":"Article 127544"},"PeriodicalIF":5.0,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711059","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}