Energy Storage and Saving最新文献

{"title":"Experimental test of a building thermal system for preventive maintenance based on thermoeconomic analysis","authors":"I. Prol-Godoy ,&nbsp;A. Picallo-Perez ,&nbsp;J.M. Sala-Lizarraga ,&nbsp;J. Rey-Martínez","doi":"10.1016/j.enss.2023.08.002","DOIUrl":"10.1016/j.enss.2023.08.002","url":null,"abstract":"<div><p>An analysis of the sectorial structure of energy consumption shows that residential and tertiary sector buildings are the third-highest consumers, responsible for 29.5% of a city’s final energy consumption. The Building Quality Control Laboratory of the Basque Government aims to promote quality, innovation, and sustainability in buildings. To accomplish this goal, it has constructed an experimental facility with different energy generation technologies and a very versatile control system for testing different energy systems and operation modes. In this study, we tested a facility for supplying domestic hot water and heating for a multi-family house by means of a condensing boiler and an aerothermal heat pump (together with the corresponding control). This installation could reproduce the thermal demands required to be satisfied by the generation equipment through a programmed operation of the installation based on real demands. Additionally, this installation was analyzed using thermoeconomics (TE) to solve problems unable to be solved using traditional energy analyses based on the First Law of Thermodynamics. These problems include: (1) Determining the costs of the products of the installation based on physical criteria, (2) detecting the places where losses actually occur, evaluating their costs, and proposing cost-effective improvements, and (3) diagnosing issues in the installation. As a result, this paper suggests a solution to the preventive maintenance problems confronting the technical maintenance personnel for thermal installations in buildings by applying TE knowledge and using real data collected from sensors.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"3 1","pages":"Pages 42-51"},"PeriodicalIF":0.0,"publicationDate":"2023-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772683523000420/pdfft?md5=a6e0f09b40da51a2c2175b8f52c971fd&pid=1-s2.0-S2772683523000420-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75984551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal and mechanical characterization of under-2-µm-thick AlCrNbSiTi high-entropy thin film","authors":"Yibo Wang ,&nbsp;Xiaona Huang ,&nbsp;Yan Liu ,&nbsp;Xiangyu Zhang,&nbsp;Bing Yang,&nbsp;Yanan Yue","doi":"10.1016/j.enss.2023.06.002","DOIUrl":"10.1016/j.enss.2023.06.002","url":null,"abstract":"<div><p>High-entropy alloys (HEAs) exhibit extraordinary physical properties such as superior strength-to-weight ratios and enhanced corrosion and oxidation resistance, making them potentially useful in energy storage and generation industries. However, thermal and mechanical properties of HEAs with various compositions vary significantly. Furthermore, these properties have rarely been investigated simultaneously owing to material or instrumentation limitations. Herein, we synthesize an HEA (AlCrNbSiTi) coating with a thickness of less than 2 <span><math><mi>μ</mi></math></span>m. We customize a frequency-domain photothermal testing system to characterize the thermal and mechanical properties of the proposed coating with high accuracy. Owing to the large mixing enthalpy of the Al-Ti, Nb-Si, and Ti-Si pairs in the coating, its hardness and elastic modulus are 15.2 and 254.7 GPa, respectively which are higher than those of previously reported HEAs. The thermal conductivity of the AlCrNbSiTi coating is characterized to be 2.90 W·m⁻¹·K⁻¹, within the expected range and well explained by the free-electron consistency diversity and phonon scattering from the amorphous structure. Additionally, the coating exhibits adequate wear performance, with a wear rate of 5.4 × 10⁻⁸ mm³·N⁻¹·m⁻¹. This relatively low thermal conductivity, combined with extraordinary mechanical properties, makes the proposed material an excellent candidate as a protective coating material for nuclear reactor components which require high strength, irradiation resistance, and thermal protection.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"3 1","pages":"Pages 52-59"},"PeriodicalIF":0.0,"publicationDate":"2023-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772683523000316/pdfft?md5=9e607f06c4786d76bcc20fe3cdfbbbe8&pid=1-s2.0-S2772683523000316-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78992376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental evaluation of factors affecting performance of concentrating photovoltaic/thermal system integrated with phase-change materials (PV/T-CPCM)","authors":"Zhaoyang Luan ,&nbsp;Lanlan Zhang ,&nbsp;Xiangfei Kong ,&nbsp;Han Li ,&nbsp;Man Fan","doi":"10.1016/j.enss.2023.06.001","DOIUrl":"10.1016/j.enss.2023.06.001","url":null,"abstract":"<div><p>The photovoltaic/thermal (PV/T) system is a promising option for countering energy shortages. To improve the performance of PV/T systems, compound parabolic concentrators (CPCs) and phase-change materials (PCMs) were jointly applied to construct a concentrating photovoltaic/thermal system integrated with phase-change materials (PV/T-CPCM). An open-air environment is used to analyze the effects of different parameters and the intermittent operation strategy on the system performance. The results indicate that the short-circuit current and open-circuit voltage are positively correlated with the solar irradiance, but the open-circuit voltage is negatively correlated with the temperature of the PV modules. When the solar irradiance is 500 W⋅m⁻² and the temperature of the PV modules is 27.5 ºC, the short-circuit current and open-circuit voltage are 1.0 A and 44.5 V, respectively. Higher solar irradiance results in higher thermal power, whereas the thermal efficiency is under lower solar irradiance (136.2–167.1 W⋅m⁻² is twice under higher solar irradiance (272.3–455.7 W⋅m⁻²). In addition, a higher mass flow rate corresponds to a better cooling effect and greater pump energy consumption. When the mass flow rate increases from 0.01 to 0.02 kg⋅s^–1, the temperature difference between the inlet and outlet decreases by 1.8 ºC, and the primary energy-saving efficiency decreases by 0.53%. The intermittent operation of a water pump can reduce the energy consumption of the system, and the combination of liquid cooling with PCMs provides better thermal regulation and energy-saving effects under various conditions.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"3 1","pages":"Pages 30-41"},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772683523000304/pdfft?md5=45a6ddd53592770c55cc60e6c88c1a36&pid=1-s2.0-S2772683523000304-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81302472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative study on the globally optimal performance of cryogenic energy storage systems with different working media","authors":"Hongbo Tan,&nbsp;Na Wen,&nbsp;Boshi Shao","doi":"10.1016/j.enss.2023.02.005","DOIUrl":"https://doi.org/10.1016/j.enss.2023.02.005","url":null,"abstract":"<div><p>Cryogenic energy storage (CES) has garnered attention as a large-scale electric energy storage technology for the storage and regulation of intermittent renewable electric energy in power networks. Nitrogen and argon can be found in the air, whereas methane is the primary component of natural gas, an important clean energy resource. Most research on CES focuses on liquid air energy storage (LAES), with its typical round-trip efficiency (RTE) being approximately 50% (theoretical). This study aims to explore the feasibility of using different gases as working media in CES systems, and consequently, to achieve a high system efficiency by constructing four steady-state process models for the CES systems with air, nitrogen, argon, and methane as working media using Aspen HYSYS. A combined single-parameter analysis and multi-parameter global optimization method was used for system optimization. Further, a group of key independent variables were analysed carefully to determine their reasonable ranges to achieve the ideal system performance, that is, RTE and liquefaction ratio through a single-parameter analysis. Consequently, a multi-parameter genetic algorithm was adopted to globally optimize the CES systems with different working media, and the energy and exergy analyses were conducted for the CES systems under their optimal conditions. The results indicated the high cycle efficiency of methane and a low irreversible loss in the liquefaction cycle. Moreover, the Joule-Thomson valve inlet temperature and charging and discharging pressures considerably affected the system performance. However, exergy loss in the CES system occurred primarily in the compressor, turbine, and liquefaction processes. The maximum optimal RTE of 55.84% was achieved in the liquid methane energy storage (LMES) system. Therefore, the LMES system is expected to exhibit potential for application in the CES technology to realize the integration of natural gas pipelines with renewable power grids on a large scale. Moreover, the results of study have important theoretical significance for the innovation of the CES technology.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 2","pages":"Pages 421-434"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50192755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular simulation on carbon dioxide capture performance for carbons doped with various elements","authors":"Chen Zhang ,&nbsp;Yiheng Zhang ,&nbsp;Tingyu Su ,&nbsp;Bingzhi Yuan ,&nbsp;Xinqi Zhang ,&nbsp;Liwei Wang ,&nbsp;Yongqiang Tian ,&nbsp;Jiawang Wang","doi":"10.1016/j.enss.2023.02.003","DOIUrl":"https://doi.org/10.1016/j.enss.2023.02.003","url":null,"abstract":"<div><p>Among the different types of CO₂ capture technologies for post-combustion, sorption CO₂ capture technology with carbon-based sorbents have been extensively explored with the purpose of enhancing their sorption performance by doping hetero elements due to the rapid reaction kinetics and low costs. Herein, sorption capacity and selectivity for CO₂ and N₂ on carbon-based sorbents doped with elements such as nitrogen, sulfur, phosphorus, and boron, are evaluated and compared using the grand canonical Monte Carlo (GCMC) method, the universal force field (UFF), and transferable potentials for phase equilibria (TraPPE). The sorption capacities of N-doped porous carbons (PCs) at 50 °C were 76.1%, 70.7%, 50.6%, and 35.7% higher than those of pure PCs, S-doped PCs, P-doped PCs, and B-doped PCs, respectively. Its sorption selectivity at 50 °C was approximately 14.0, nearly twice that of pure PCs or other hetero-element-doped PCs. The N-doped PCs showed the largest sorption heat at 50 °C among all the PCs, approximately 20.6 kJ·mol⁻¹, which was 9.7%−25.5% higher than that of the pure PCs under post-combustion conditions. Additionally, with the product purity of 41.7 vol.%−75.9 vol.% for vacuum pressure swing sorption, and 53.4 vol.%−83.6 vol.% for temperature swing sorption, the latter is more suitable for post-combustion conditions than pressure-swing sorption.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 2","pages":"Pages 435-441"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50192832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design of a multi-inlet solar thermochemical reactor for steam methane reforming with improved performance","authors":"Pei-Yuan Dou,&nbsp;Xin-Yuan Tang,&nbsp;Wei-Wei Yang,&nbsp;Ya-Ling He","doi":"10.1016/j.enss.2023.02.006","DOIUrl":"https://doi.org/10.1016/j.enss.2023.02.006","url":null,"abstract":"<div><p>Reactor structure design plays an important role in the performance of solar-thermal methane reforming reactors. Based on a conventional preheating reactor, this study proposed a cylindrical solar methane reforming reactor with multiple inlets to vary the temperature field distribution, which improved the temperature of the reaction region in the reactor, thereby improving the reactor performance. A multi-physical model that considers mass, momentum, species, energy conservation, as well as thermochemical reaction kinetics of methane reforming, was applied to numerically investigate the reactor performance and analyze the factors that affect performance improvement. It was found that compared with a conventional preheating reactor, the proposed cylindrical reactor with inner and external inlets for gas feeding enhanced heat recovery from the exhausted gas and provided a more suitable temperature field for the reaction in the reactor. Under different operating conditions, the methane conversion in the cylindrical reactor with multi-inlet increased by 9.5% to 19.1%, and the hydrogen production was enhanced by 12.1% to 40.3% in comparison with the conventional design, even though the total reaction catalyst volume was reduced.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 2","pages":"Pages 403-414"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50192753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impacts of wind conditions on hydrogen leakage during refilling hydrogen-powered vehicles","authors":"Lin Xie ,&nbsp;Yangyiming Rong ,&nbsp;Jianye Chen ,&nbsp;Fang Yuan ,&nbsp;Rui Long","doi":"10.1016/j.enss.2023.03.001","DOIUrl":"https://doi.org/10.1016/j.enss.2023.03.001","url":null,"abstract":"<div><p>Although hydrogen leakage at hydrogen refueling stations has been a concern, less efforts have been devoted to hydrogen leakage during the refueling of hydrogen-powered vehicles. In this study, hydrogen leakage and dilution from the hydrogen dispenser during the refueling of hydrogen-powered vehicles were numerically investigated under different wind configurations. The shape, size, and distribution of flammable gas clouds (FGC) during the leakage and dilution processes were analyzed. The results showed that the presence of hydrogen-powered vehicles resulted in irregular FGC shapes. Greater wind speeds (<em>v</em>_wv) were associated with longer FGC propagation distances. At <em>v</em>_wv = 2 m·s⁻¹ and 10 m·s⁻¹, the FGC lengths at the end of the leakage were 7.9 m and 20.4 m, respectively. Under downwind conditions, higher wind speeds corresponded to lower FGC heights. The FGC height was larger under upwind conditions and was slightly affected by the magnitude of the wind speed. In the dilution process, the existence of a region with a high hydrogen concentration led to the FGC volume first increasing and then gradually decreasing. Wind promoted the mixing of hydrogen and air, accelerated FGC dilution, inhibited hydrogen uplifting, and augmented the horizontal movement of the FGC. At higher wind speeds, the low-altitude FGC movements could induce potential safety hazards.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 2","pages":"Pages 449-458"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50192833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal characteristics of melting of a phase change material enhanced by a stainless-steel 304 periodic structure","authors":"Chunrong Zhao ,&nbsp;Michael Opolot ,&nbsp;Patrick Keane ,&nbsp;Ji Wang ,&nbsp;Ming Liu ,&nbsp;Frank Bruno ,&nbsp;Simone Mancin ,&nbsp;Kamel Hooman","doi":"10.1016/j.enss.2023.02.002","DOIUrl":"https://doi.org/10.1016/j.enss.2023.02.002","url":null,"abstract":"<div><p>In this work, melting of a high-temperature inorganic phase change material (PCM) eutectic (with a melting point of 569 °C) within a vertical cylindrical tank has been experimentally investigated. To promote the heat transfer rate, a periodic structure that is constructed by a commercial SS-304 mesh screen has been considered and immersed into the PCM tank. Thermal characteristics of the PCM-periodic structure tank under different initial temperatures (450, 490 and 546 °C) and wall temperatures (620, 640, 660, 680 and 700 °C), are then investigated and reported. The presented experimental data can facilitate practical engineers to find the best operating condition of similar PCM tanks; meanwhile, it can also be employed for the investigation of thermal response of transient heat conduction before melting starts.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 2","pages":"Pages 442-448"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50192834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental study and numerical analysis of vacuum thermal characteristics of brush DC motor","authors":"Tao Li,&nbsp;Tao Feng,&nbsp;Yaoting Wang,&nbsp;Xiangyang Xu","doi":"10.1016/j.enss.2023.01.001","DOIUrl":"https://doi.org/10.1016/j.enss.2023.01.001","url":null,"abstract":"<div><p>Brush direct current (DC) motors have several qualities that make them very attractive for space flight applications. Considering the high reliability requirements of aerospace missions, the thermal characteristics and thermal failure of the brush DC motor in the space environment were studied. Using a motor thermal resistance network model, a special thermal test method was determined and combined with a thermal conductivity analysis model, the thermal parameters were obtained via item-by-item stripping, and the motor temperature field was constructed. By introducing the arc discharge factor to evaluate the electric-corrosion heat consumption, the numerical analysis results were in good agreement with the test results under the conditions of stalled rotor, normal rotation, single brush, and multiple brushes. The analysis and test results show that continuous operation for 110 s will lead to melting of the brush solder joints, and electrical corrosion heat consumption is one of the main factors that cannot be ignored. The reliability model of vacuum applications should be established in the normal working mode of at least two brushes in both the positive and negative electrodes. To improve the reliability, a sealed air-filled structure of the motor was proposed, a heat-flow co-simulation model of a continuous medium flow with a large curvature and constant without a gravity field was established, and the temperature and velocity fields under different sealed pressures were obtained. The results show that the temperature of the single brush reduced to below 140 °C from 204.5 °C in vacuum, which can meet the long-term continuous working requirement of high reliability of brush motors in space missions. In addition, it was found that with the decrease in pressure, the effect of convective heat transfer gradually weakens, the temperature gradually increases and converges to the unique heat conduction process of the gas, while the effect of convection is negligible. As the pressure continues to decrease, the sealed gas evolves from continuous medium flow to transitional and free molecular flow, and the heat conduction effect of the gas weakens again until it approaches the singleness solid conduction process.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 2","pages":"Pages 459-466"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50192756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical investigation of a latent cold storage system using shell-and-tube unit","authors":"Bilal Lamrani ,&nbsp;Aicha Belcaid ,&nbsp;Badr Eddine Lebrouhi ,&nbsp;Tarik El Rhafiki ,&nbsp;Tarik Kousksou","doi":"10.1016/j.enss.2023.02.008","DOIUrl":"https://doi.org/10.1016/j.enss.2023.02.008","url":null,"abstract":"<div><p>The use of cold thermal storage systems in low-temperature industrial applications is considered one of the most promising ways of improving energy efficiency and reducing the use of power during peak periods. In this study, the thermal performance of a shell-and-tube cold storage system under realistic operating conditions is investigated numerically. The proposed model is developed based on energy balances and then validated using existing experimental data from the literature. Glycol/water is used as the heat transfer fluid (HTF) and the phase transition phenomena in the phase change material (PCM) is simulated using the enthalpy–porosity approach. The influence of several design and operating parameters, including the HTF mass flow rate, HTF temperature, PCM type, and volume, on the cold storage performance during the crystallization process is presented and analyzed. The numerical results show that increasing the HTF mass flow rate accelerates the PCM crystallization process. However, the delivery periods of constant thermal power and constant HTF outlet temperature are reduced. The HTF inlet temperature has a significant effect on the cold storage performance, and the complete charging period is reduced by approximately 37% when the HTF inlet temperature is reduced from −4 °C to −7 °C. Increasing the number of tubes in the cold storage unit is concluded to significantly improve the thermal performance of the system, and using water/ice as a cold storage medium is more suitable than using the commercial PCMs RT2-HC and RT4-HC. Finally, the proposed numerical model for cold storage systems can be successfully used to design and simulate their realistic operation under different conditions.</p></div>","PeriodicalId":100472,"journal":{"name":"Energy Storage and Saving","volume":"2 2","pages":"Pages 467-477"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50192757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}