Muchamed Keshtov, Alexei Khokhlov, Dmitri Shikin, Jun Liu, Dmitri Kalinkin, Vladimir Alekseev, Rahul Singhal, Ganesh D. Sharma
{"title":"Ternary Organic Solar Cells Based on S, N-Heteroacene Non-Fullerene Acceptors with Unfused Architecture A-D-D-A-Type","authors":"Muchamed Keshtov, Alexei Khokhlov, Dmitri Shikin, Jun Liu, Dmitri Kalinkin, Vladimir Alekseev, Rahul Singhal, Ganesh D. Sharma","doi":"10.1002/ente.202402149","DOIUrl":"https://doi.org/10.1002/ente.202402149","url":null,"abstract":"<p>In this study, two distinct unfused non-fullerene acceptors (NFAs) are synthesized by arranging them in an A-D-D-A pattern, both containing same D-D central S, N-heteroacene but different terminal acceptors, namely BTA (<b>NFA-2</b>) and IC (<b>NFA-3</b>). Their optical and electrochemical properties are investigated. Both <b>NFA-2</b> and <b>NFA-3</b> display the high lowest unoccupied molecular orbital energy level, leading to an increased open circuit voltage in the organic solar cells. PBDB-T is chosen as polymer donor, showing spectral absorption that complements both NFAs. The optimized organic solar cells, based on PBDB-T:<b>NFA-2</b> and PBDB-T:<b>NFA-3</b> attained power conversion efficiency of 9.24% and 13.50%, respectively. Since the absorption characteristics of <b>NFA-2</b> and <b>NFA-3</b> are complementary, a small amount of <b>NFA-2</b> is added into PBDB-T:<b>NFA-3</b> binary blend, the ternary organic solar cells attained a power conversion efficiency of 15.24%. The rise in power conversion efficiency is linked to the higher values of both short circuit current and fill factor. The increased short circuit current value in ternary organic solar cells is linked to the efficient use of excitons produced in <b>NFA-2</b> by transferring energy from <b>NFA-2</b> to <b>NFA-3</b> and effective exciton dissociation, faster charge extraction, decreased bimolecular and trap-assisted recombination. The enhanced value of FF is also linked to the processes mentioned earlier. This investigation shows that it is advantageous to use separate non-fused NFAs with absorption spectra that complement each other and have overlapped PL spectra of a medium bandgap acceptor along with the absorption spectra of a narrow bandgap NFA in ternary organic solar cells.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ying Qi, Huarui Ding, Tao Zhang, Wei Jiang, Jingxia Qiu
{"title":"Facile Surface Chemical Tailoring of Industrial Carbon Waste for Improved Sodium Storage","authors":"Ying Qi, Huarui Ding, Tao Zhang, Wei Jiang, Jingxia Qiu","doi":"10.1002/ente.202401800","DOIUrl":"https://doi.org/10.1002/ente.202401800","url":null,"abstract":"<p>Sodium-ion batteries (SIBs) have emerged as promising supplementary for energy storage devices. Among various anode materials, carbon-based materials have been considered ideal for SIBs due to their excellent electronic conductivity, great mechanical strength, and large surface area. However, the small interlayer distance and slower reaction kinetics significantly limit their practical application in SIBs. The study of carbon materials in SIBs found that heteroatom doping could help enlarge interlayer distance and adsorb more Na<sup>+</sup> simultaneously. Hence, petroleum coke (PC), an industrial waste, is chosen as a precursor. A straightforward oxidation and carbonization process is employed to introduce oxygen atoms into the carbon skeleton (OPC). The heteroatom-doped OPC exhibits a unique microcrystalline structure comprising both graphitic and disordered regions. This structure improves rate performance and enhances initial columbic efficiency (ICE) for sodium storage. Consequently, it can deliver a better cycling capacity of 209 mAh g<sup>−1</sup> at 0.1 A g<sup>−1</sup> and a high ICE of 51.3% (vs 66.9 mAh g<sup>−1</sup> with ICE of PC 12.6%). This study shows that heteroatom doping and microstructural tailoring of materials derived from petroleum coke provide a viable approach for enhancing the electrochemical performance of SIBs, paving the way for sustainable and efficient sodium storage.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 7","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chengying Ma, Ali Matin Nazar, Amir Hossein Moradi, Houra Goharian, Gaowei Mao, Melika Yari, Xiaosheng Ji, Sha Dong
{"title":"Advanced Triboelectric Nanogenerator Sensing Technologies for High-Efficiency Cardiovascular Monitoring","authors":"Chengying Ma, Ali Matin Nazar, Amir Hossein Moradi, Houra Goharian, Gaowei Mao, Melika Yari, Xiaosheng Ji, Sha Dong","doi":"10.1002/ente.202401863","DOIUrl":"https://doi.org/10.1002/ente.202401863","url":null,"abstract":"<p>Triboelectric nanogenerators (TENGs) have emerged as transformative technologies in biosensing, offering unprecedented energy efficiency and precision in monitoring vital physiological signals. This review delves into the cutting-edge advancements in TENG sensors, highlighting their exceptional potential in bioengineering applications. Key operating mechanisms and advanced materials are explored, with a focus on their impact on sensor sensitivity, durability, and biocompatibility. Cardiovascular monitoring is presented as a pivotal application, where TENG sensors demonstrate exceptional capability in detecting subtle mechanical signals such as pulse waves and heartbeats in real time. Their self-powered nature eliminates the need for external energy sources, and their inherent scalability and adaptability make them ideal for integration into wearable or implantable devices. Benefits such as miniaturization, energy efficiency, and biocompatibility are discussed, alongside challenges like material fatigue and long-term stability in biomedical environments. Future directions include optimizing TENG materials for enhanced mechanical robustness and expanding their integration into advanced medical diagnostics. This review provides a comprehensive roadmap for leveraging TENG technologies to revolutionize continuous cardiovascular monitoring and broader medical applications.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhigang Wang, Du Wang, Xin Ren, Mujie Xue, Tingju Wang, Mingyuan Wan, Yucheng Wang, Hao Wang
{"title":"A Review of Supercritical Carbon Dioxide Heat Transfer and Flow Properties in Pipes","authors":"Zhigang Wang, Du Wang, Xin Ren, Mujie Xue, Tingju Wang, Mingyuan Wan, Yucheng Wang, Hao Wang","doi":"10.1002/ente.202401461","DOIUrl":"https://doi.org/10.1002/ente.202401461","url":null,"abstract":"<p>Supercritical carbon dioxide (s-CO<sub>2</sub>) has the characteristics of highly efficient and has been used in the engineering field. This article reviews the research progress on the heat transfer and flow properies in s-CO<sub>2</sub> tubes. To obtain the most accurate heat transfer and friction factor correlations, new correlations derived from experimental data are proposed, and the accuracy of the published correlations is assessed in conjunction with the experimental data. The results show how important variables such as mass flow, inlet temperature, and tube size relate to the properties of pressure drop and heat transfer in pipes that use s-CO<sub>2</sub> as the work material. The D-M-2011 heat transfer correlation had the highest accuracy, with 62.57% of the data having a relative deviation of less than ±20%, and the Wang-2014 friction factor correlation had the highest accuracy, with 72.91% of the data having a relative deviation of less than ±20%. Considering the dimensionless number correction and segmented function correction to improve the correlation, 82.41% of the data in the new heat transfer correlation have a relative deviation less than ±20% and 83.53% of the data in the new friction factor correlation have a relative deviation less than ±20%.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ali Sadeghi, Nima Nikou, Alireza Tayefeh Parchillo, Ahmad Vaeli, Mojtaba Askari, Ali Ghaffarinejad
{"title":"Recent Advances of Deposition Methods for High-Performance Lithium–Sulfur Batteries – A Review","authors":"Ali Sadeghi, Nima Nikou, Alireza Tayefeh Parchillo, Ahmad Vaeli, Mojtaba Askari, Ali Ghaffarinejad","doi":"10.1002/ente.202401484","DOIUrl":"https://doi.org/10.1002/ente.202401484","url":null,"abstract":"<p>During the last decades, lithium-ion batteries attracted great attention due to their low cost and environmentally friendly energy storage systems as great alternatives for fossil fuels. However, their low theoretical energy densities prevent their wide utilization for human life. Therefore, lithium–sulfur batteries have been introduced due to high theoretical energy densities (≈2600 Wh kg<sup>−1</sup>) and abundant elements of sulfur cathode. However, some challenges such as the shuttle phenomenon, lithium dendritic growth, and low intrinsic conductivity of sulfur material inhibit their further usage. Thus, many researchers tried to solve these issues through deposition processes. According to this viewpoint, different chemical and physical methods have been introduced for anode, cathode, or separators of lithium–sulfur batteries. In this review article, it has been tried to interpret the role of various chemical and physical methods with a focus on the merits and demerits of each procedure to investigate their effects on Li–S battery performance during the last decade to predict the best method for further application of lithium–sulfur batteries. Additionally, since machine learning has been spread over the last few years, it has been tried to interpret the role of this methodology in predicting and investigating the mechanisms of these batteries.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Porous Carbon-Coated Fe-Doped MnO as High-Performance Cathode for Aqueous Zinc Ion Batteries","authors":"Guangxing Pan, Zhenyuan Wang, Jichuan Zhang, Miaomiao Cao, Ling Zhang, Jiaheng Zhang","doi":"10.1002/ente.202401690","DOIUrl":"https://doi.org/10.1002/ente.202401690","url":null,"abstract":"<p>Ion doping is a feasible approach to enhance the stability and cycling performance of manganese-based materials. However, limited research has been conducted on Fe-doped manganese-based oxides. The present study represents the first successful synthesis of a composite material, namely porous carbon-coated Fe-doped MnO (Fe-MnO/C), achieved through annealing FeMn-based metal-organic frameworks. The electrochemical performance is enhanced by Fe doping, as the presence of Mn<span></span>O<span></span>Fe bonds facilitates charge transfer and mitigates structural collapse, thereby resulting in improved rate capability and cycling stability. The Fe-MnO/C-3 cathode achieves a maximum energy density of 249.6 Wh kg<sup>−1</sup> at a power density of 130.6 W kg<sup>−1</sup> and demonstrates a high specific capacity of 134 mAh g<sup>−1</sup> even after undergoing 800 cycles at 1.0 A g<sup>−1</sup>. The study presents a cost-effective and convenient approach to fabricate a high-performance cathode for aqueous zinc-ion batteries.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigating the Impact of Copper and Zinc Doping in High-Entropy Prussian Blue Analogues for Na-Ion Batteries: From Material Analysis to Device Fabrication","authors":"Pappu Naskar, Pallav Mondal, Biplab Biswas, Sourav Laha, Anjan Banerjee","doi":"10.1002/ente.202401733","DOIUrl":"https://doi.org/10.1002/ente.202401733","url":null,"abstract":"<p>High-entropy Prussian blue analogues (HE-PBAs) show great promise as active materials in Na-ion batteries, particularly due to their multimetallic synergism that enhances electrochemical performance. This study explores two HE-PBAs: Na<sub>2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>Cu<sub>0.2</sub>Fe(CN)<sub>6</sub> (HE-PBA-1) and Na<sub>2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>Zn<sub>0.2</sub>Fe(CN)<sub>6</sub> (HE-PBA-2). Both crystallize in monoclinic (<i>P</i>2<sub>1</sub><i>/n</i>) symmetry, but HE-PBA-1, with Cu, exhibits a lower bandgap, lower Na-ion diffusion barrier, higher [Fe(CN)<sub>6</sub>] vacancy, and smaller particle size compared to HE-PBA-2 with Zn. These factors result in higher power capability for HE-PBA-1 due to its enhanced electronic conductivity and Na-ion diffusivity. Additionally, its higher [Fe(CN)<sub>6</sub>] vacancy and smaller particle size offer more electrochemical active sites, improving energy characteristics. A Na-ion full cell with HE-PBA-1 as the positive electrode and a mixed-metallic sodium–copper–iron oxide (NaCuFe-Oxide) as the negative electrode in a hydrogel electrolyte is assembled. It achieves a specific capacity of 94 mAh g<sup>−1</sup> at 100 mA g<sup>−1</sup>, an energy density of 70 Wh kg<sup>−1</sup> at 74 W kg<sup>−1</sup>, a power density of 375 W kg<sup>−1</sup> at 57 Wh kg<sup>−1</sup>, and excellent durability with 89% capacity retention over 500 cycles at 200 mA g<sup>−1</sup> within a 0–2 V window. A 5 V/3 mAh prototype device is tested with a solar charging module to evaluate its real-life feasibility.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vitor Vlnieska, Severin Siegrist, Pedro O. Q. Ceres, Jakob Heier, Fan Fu, Yaroslav E. Romanyuk
{"title":"Monolithic Interconnection of Thin-Film Perovskite Photovoltaic Modules Using Aerosol Jet Printing","authors":"Vitor Vlnieska, Severin Siegrist, Pedro O. Q. Ceres, Jakob Heier, Fan Fu, Yaroslav E. Romanyuk","doi":"10.1002/ente.202401793","DOIUrl":"https://doi.org/10.1002/ente.202401793","url":null,"abstract":"<p>\u0000Perovskite thin-film photovoltaic (PV) modules consist of multiple cells connected in series to reduce resistive losses in the transparent electrode. Cell interconnection is typically achieved using techniques involving laser scribing and/or precise alignment during fabrication. For perovskite modules, this interconnection is implemented monolithically by integrating three laser scribing steps into the module fabrication process. Laser scribing provides high-resolution lines (≈100–200 μm wide), necessitating equally precise or finer techniques for interconnections. Aerosol jet printing emerges as a promising solution, offering resolutions as fine as 10 μm and enabling high-speed processing. This study demonstrates the fabrication of semi-transparent monolithic perovskite modules using a combination of laser scribing and aerosol jet printing. Five interconnected cells are successfully produced, with the laser scribing process requiring ≈2 min and aerosol jet printing interconnections completed in about 7 min. The resulting perovskite PV modules with aerosol jet-printed interconnects show comparable performance to those fabricated using evaporated interconnections. Key performance metrics included an open-circuit voltage (<i>V</i><sub>OC</sub>) of 4.91 V, short-circuit current density (<i>J</i><sub>SC</sub>) of 2.41 mA cm<sup>−2</sup>, fill factor (FF) of 44.56%, power conversion efficiency of 5.26%, and an effective area of 13.46 cm<sup>2</sup>. These results highlight the potential of aerosol jet printing as an efficient and precise approach for advancing perovskite module fabrication.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ente.202401793","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Study on the Performance of Aqueous Aluminum-Ion Battery with Al[TFSI]3 Electrolyte","authors":"Yajie Zhou, Zhaohua Li, Xinwen Chen, Meng Zhang, Yuqi Qian, Xiucong Zhao, Ji Zuo, Mihrab Uddin","doi":"10.1002/ente.202401700","DOIUrl":"https://doi.org/10.1002/ente.202401700","url":null,"abstract":"<p>\u0000Aqueous aluminum-ion batteries have higher energy density and lower cost than traditional rechargeable batteries. Electrolytes play a vital role in aqueous aluminum-ion battery and are directly related to battery performance. However, ionic liquid electrolytes suitable for aluminum are expensive and have potential environmental problems. To improve the energy density and reduce the environmental impact, this study innovatively proposes a new aqueous electrolyte. In this article, a battery preparation and performance testing bench is built to prepare a new aqueous aluminum-ion battery. A novel aqueous aluminum-ion battery is proposed using α-MnO<sub>2</sub> as the positive electrode, eutectic mixture-coated aluminum anode (UTAl) as the negative electrode, and aluminum bistrifluoromethanesulfonate (Al[TFSI]<sub>3</sub>) aqueous solution as the electrolyte. The electrochemical performance of the prepared aqueous aluminum-ion battery is studied under multiple working conditions. The results show that the assembled UTAl/Al[TFSI]<sub>3</sub>/α-MnO<sub>2</sub> battery exhibits an ultrahigh first-cycle specific energy of up to 420 mAh g<sup>−1</sup> at room temperature and a current density of 50 mA g<sup>−1</sup> for 5 mol L<sup>−1</sup> Al[TFSI]<sub>3</sub>. The newly developed battery can achieve a capacity retention rate of 63.4%, a Coulombic efficiency of over 94%, and a stable charge and discharge voltage platform of 1.65 and 1.4 V.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Piezoelectric Energy Harvesting: From Fundamentals to Advanced Applications","authors":"Rahul Bhatnagar, Varsha Yadav, Upendra Kumar, Marcos Flores Carrasco","doi":"10.1002/ente.202401455","DOIUrl":"https://doi.org/10.1002/ente.202401455","url":null,"abstract":"<p>\u0000Piezoelectric energy harvesting (PEH) has surfaced as an innovative technology for supplying power to low-power electronic devices by converting mechanical energy into electrical energy. This technology utilizes the piezoelectric effect, in which specific materials produce an electric charge when they experience mechanical stress. Piezoelectric materials can be categorized into three main types: single crystal, composite, and polymeric. Single-crystal materials exhibit elevated piezoelectric coefficients and stability; however, they tend to be costly and fragile. Composite materials integrate piezoelectric ceramics with polymer matrices, enhancing flexibility and lowering costs. Polymeric materials exhibit lightweight, flexible, and biocompatibility characteristics, rendering them ideal for wearable and implantable applications. Although PEH presents considerable promise, it is essential to tackle challenges, including low power output, material constraints, and environmental influences. Future investigations will focus on creating innovative materials that exhibit improved piezoelectric characteristics, refining device architecture for optimal energy conversion, and incorporating piezoelectric harvesting technology into intelligent systems. By addressing these challenges and investigating creative solutions, PEH can significantly advance sustainable and self-powered electronic devices.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}