Engineering reports : open access最新文献

{"title":"Photodynamic Therapy for Bladder Tumors: A Bibliometric Analysis Based on the Web of Science Database","authors":"Xuan Wang,&nbsp;Jian Chang,&nbsp;Dongliang Zhang,&nbsp;Yuanyuan Zhang,&nbsp;Shuzhen Niu,&nbsp;Mingming Zhang,&nbsp;Lin Lin,&nbsp;Beifen Zhong,&nbsp;Xinyu Wang,&nbsp;Yi Zhou,&nbsp;Xiang Wang","doi":"10.1002/eng2.70094","DOIUrl":"https://doi.org/10.1002/eng2.70094","url":null,"abstract":"<p>This study was performed to summarize the current research status of photodynamic therapy (PDT) for bladder tumors in China and provide a comprehensive analysis of global research frontiers and emerging trends in PDT for bladder tumors. Bladder cancer is a significant health concern, posing a significant threat to human well-being because of its malignant nature. PDT is an effective treatment for bladder tumors. We conducted a bibliometric analysis of research literature on PDT for bladder tumors. A comprehensive search of published papers up to December 31, 2023 was performed using the Web of Science database, following the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines. We analyzed the literature distribution characteristics, research frontiers, and hotspots in PDT using Citespace software, employing co-citation and co-word analysis protocols. We also summarized specific treatments and preliminary results from the Department of Urological Oncology at Shanghai General Hospital. In total, 465 scientific papers were retrieved, with research predominantly conducted in developed countries such as the United States, Germany, and Belgium. China leads among developing countries but still lags behind these developed countries. Key research frontiers include the design and development of photosensitizers, evaluation of PDT efficacy, optimization and standardization of clinical therapeutic procedures, and clinical transformation of photosensitizers. Although the number of research papers on PDT for bladder tumors from China is increasing, a noticeable gap remains compared with Western countries. Moving forward, the design of novel photosensitizers, the standardization and normalization of clinical therapeutic procedures, and robust efficacy assessment processes are expected to be the main areas of focus and development in PDT research globally.</p>","PeriodicalId":72922,"journal":{"name":"Engineering reports : open access","volume":"7 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eng2.70094","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689160","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":"Consequences of Switching From Lime to Dololime Fines Injection in Electric Arc Furnace","authors":"Bilal Elhajjar,&nbsp;Mohamed Samir Larhrib,&nbsp;Davide Mombelli","doi":"10.1002/eng2.70095","DOIUrl":"https://doi.org/10.1002/eng2.70095","url":null,"abstract":"<p>This study presents a successful solution implemented at a steelmaking plant of the company United Steel in Kuwait. The primary challenge addressed in this study involves the generation of excessive dololime fines (particles less than 10 mm) and insufficient lime fines (particles between 5 and 15 mm) at the lime and dololime plant. This size disparity presents operational challenges within the steelmaking process. An innovative strategy is implemented to overcome this disparity and optimize material utilization. The solution involves replacing lime fines injection with dololime fines injection in the electric arc furnace. The original practice employs a combination of lime fines injection with the use of lime and dololime lumps. The proposed solution replaces the lime fines injection with available dololime fines. To maintain the required mass balance, the quantity of lime lumps is increased, while dololime lump usage is reduced. The implemented strategy results in several key improvements. Lime and dololime consumption demonstrably decrease, indicating improved material efficiency. The economic benefits are significant. By eliminating the need for external briquetting of dololime fines and reducing purchased lime fines quantities, the solution generates annual cost savings of approximately USD 350,000.</p>","PeriodicalId":72922,"journal":{"name":"Engineering reports : open access","volume":"7 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eng2.70095","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689162","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":"Mechanism of Enhanced Gas Recovery and Carbon Storage Capacity in Gas Reservoirs With CO2 Injection: An Example of Dongfang Gas Field","authors":"Yuqiang Zha,&nbsp;Qing Ye,&nbsp;Nan Zhao,&nbsp;Runfu Xiong,&nbsp;Bao Cao,&nbsp;Yulong Zhao,&nbsp;Yu Li,&nbsp;Wei Xiong,&nbsp;Ye Tian,&nbsp;Cheng Cao","doi":"10.1002/eng2.70068","DOIUrl":"https://doi.org/10.1002/eng2.70068","url":null,"abstract":"<p>China's Yinggehai Basin gas field is in the middle and late stages of development and has a large CO₂ sequestration potential. Moreover, the gas recovery is low, and it can be further enhanced by injecting CO₂. In order to study the recovery ratio of the gas field and realize CO₂ storage, numerical simulation studies were carried out on three types of gas reservoirs in Dongfang A gas field, including hypotonic, mesotonic depletion, and mesotonic water intrusion. The results show that: (1) competitive adsorption improves CO₂ storage and CH₄ recovery in low-permeability gas reservoirs; CO₂ injection can effectively supplement the formation energy, and competitive adsorption and pressurization are the main controlling factors for the development of low-permeability gas reservoirs; (2) the recovery mechanism of medium permeability depleted gas reservoirs is to improve pressure and energy. Adsorption has almost no effect on methane recovery and cumulative production, and gas injection rate and gas injection components are the main controlling factors affecting CO₂ sequestration; (3) CO₂ injection in medium-permeability water intrusion gas reservoirs can inhibit water intrusion. The higher the injection–production ratio, the better the effect of inhibiting water intrusion. CO₂ should be injected into the gas layer in the process of gas injection development, and the injection-production ratio and the gas injection components are the main controlling factors to improve CO₂ storage. It is concluded that CO₂ injection can improve pressure and energy, inhibit water intrusion, enhance gas recovery, and realize carbon sequestration, which makes CCUS-EGR expected to be a potential technology for the stable and increased natural gas production in the Yinggehai Basin and provides a theoretical basis for the further development of the integrated technology of gas injection, recovery, and sequestration.</p>","PeriodicalId":72922,"journal":{"name":"Engineering reports : open access","volume":"7 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eng2.70068","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689139","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":"Observer-Based Sampled-Data Controller in Saturated Systems via Composite Nonlinear Feedback","authors":"Valiollah Ghaffari,&nbsp;Ali Vazani,&nbsp;Saleh Mobayen,&nbsp;Amin Torabi Jahromi","doi":"10.1002/eng2.70071","DOIUrl":"https://doi.org/10.1002/eng2.70071","url":null,"abstract":"<p>Employing composite nonlinear feedback idea, an observer-based digital controller is addressed for continuous-time systems with input nonlinearity and disturbance. To achieve the regulation purpose, the equivalent discrete-time equations are obtained via discretization. The gains of the digital integral controller are specified such that the input–output relationship becomes strictly positive real for the closed-loop structure. Such a test condition will be verified through checking the feasibility of a linear matrix inequality. Having ensured the positive realness, the transient responses are surprisingly improved by adding suitable nonlinear feedback terms. The results are used in some constrained systems to exhibit the effectiveness of the presented mechanism over the similar one.</p>","PeriodicalId":72922,"journal":{"name":"Engineering reports : open access","volume":"7 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eng2.70071","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646029","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":"MaOAOA: A Novel Many-Objective Arithmetic Optimization Algorithm for Solving Engineering Problems","authors":"Pradeep Jangir,&nbsp; Arpita,&nbsp;Sundaram B. Pandya,&nbsp;Gulothungan G.,&nbsp;Mohammad Khishe,&nbsp;Bhargavi Indrajit Trivedi","doi":"10.1002/eng2.70077","DOIUrl":"https://doi.org/10.1002/eng2.70077","url":null,"abstract":"<p>Currently, the use of multi-objective optimization algorithms has been applied in many fields to find the efficient solution of the multiple objective optimization problems (MOPs). However, this reduces their efficiency when addressing MaOPs, which are problems that contain more than three objectives; this is because the portion of the Pareto frontier solutions tends to increase exponentially with the number of objectives. This paper aims at overcoming this problem by proposing a new Many-Objective Arithmetic Optimization Algorithm (MaOAOA) that incorporates a reference point, niche preservation, and an information feedback mechanism (IFM). They did this in a manner that splits the convergence and the diversity phases in the middle of the cycle. The first phase deals with the convergence using a reference point approach, which aims to move the population towards the true Pareto Front. However, the diversity phase of the MaOAOA uses a niche preserve to the archive truncation method in the population, thus guaranteeing that the population is spread out properly along the actual Pareto front. These stages are mutual; that is, the convergence stage supports the diversity stage, and they are balanced by an (IFM) approach. The experimental results show that MaOAOA outperforms several approaches, including MaOTLBO, NSGA-III, MaOPSO, and MOEA/D-DRW, in terms of GD, IGD, SP, SD, HV, and RT metrics. This can be seen from the MaF1-MaF15 test problems, especially with four, seven, and nine objectives, and five real-world problems that include RWMaOP1 to RWMaOP5. The findings indicate that MaOAOA outperforms the other algorithms in most of the test cases analyzed in this study.</p>","PeriodicalId":72922,"journal":{"name":"Engineering reports : open access","volume":"7 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eng2.70077","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645885","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":"Wind Speed Weibull Model Identification in Oman, and Computed Normalized Annual Energy Production (NAEP) From Wind Turbines Based on Data From Weather Stations","authors":"Osama A. Marzouk","doi":"10.1002/eng2.70089","DOIUrl":"https://doi.org/10.1002/eng2.70089","url":null,"abstract":"<p>Using observation records of wind speeds from weather stations in the Sultanate of Oman between 2000 and 2023, we compute estimators of the two Weibull distribution parameters (namely, the Weibull distribution's shape parameter and the Weibull distribution's scale parameter) in 10 weather station locations within eight Omani governorates. The 10 weather station locations in Oman and their corresponding governorates are Seeb (in Muscat), Salalah (in Dhofar), Buraimi (in Al Buraimi), Masirah (in Ash Sharqiyah South), Thumrait (in Dhofar), Sur (in Ash Sharqiyah South), Khasab (in Musandam), Sohar (in Sohar), Fahud (in Az Zahirah), and Saiq (in Ad Dakhiliyah). The obtained wind speed distributions at these weather stations are then used to predict the annual energy production (AEP) for a proposed reference amount of 1 MWp of wind turbine capacity, and this specific AEP is designated here by the term “normalized annual energy production (NAEP).” The direction of the wind is also analyzed statistically over the same period to identify the more probable wind directions. Four locations were clearly distinguishable as being windy compared to the others. The simulated probability of exceeding a feasible 6 m/s (21.6 km/h) wind speed in these locations is 41.71% in Thumrait, 37.77% in Masirah, 29.53% in Sur, and 17.03% in Fahud. The NAEP values in these four locations are estimated as 1.727 GWh/MWp/year, 1.419 GWh/MWp/year, 1.038 GWh/MWp/year, and 0.602 GWh/MWp/year; respectively. The wind in the location of Thumrait is not only the fastest (on average) among the selected locations, but also the most unidirectional, blowing almost always from the south–south-east (SSE) direction; and both features make this non-coastal location in southern Oman, with an altitude of about 467 m, an attractive site for utility-scale wind farms. We also statistically analyze wind data in the port city of Duqm; and we show that the simulated probability of exceeding 6 m/s wind speed there is 24.04%, the estimated NAEP there is 0.927 GWh/MWp/year, and the wind direction there is approximately blowing from the south–south-west (SSW) direction most of the time. When compared to photovoltaic (PV) solar energy systems, onshore wind turbine systems with the same installed capacity appear to be less effective in Oman. This study closes a gap in the field of wind energy where no similar standardized NAEP as the one we propose is present.</p>","PeriodicalId":72922,"journal":{"name":"Engineering reports : open access","volume":"7 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eng2.70089","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143639171","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":"Seismic Evaluation of Plan Asymmetry Effects in an Older Infill Framed Reinforced Concrete Building Structures","authors":"Aslam F. Mohammad,&nbsp;Marco Faggella,&nbsp;Rashid A. Khan,&nbsp;Sami U. Haq,&nbsp;Muhammad Saim","doi":"10.1002/eng2.13114","DOIUrl":"https://doi.org/10.1002/eng2.13114","url":null,"abstract":"<p>Several earthquake events revealed the severity of damage in reinforced concrete (RC) building structure mainly from the irregular placement of masonry infill and negligence of code compliant detailing provisions in structural components on building response. This study aims to evaluate the detrimental effects of nonuniform placement of infill panels in building structures constructed in regions susceptible to high seismic risk. Therefore, a finite element model (FEM) model of an older infilled frame RC building employed herein with various combinations of infill placement along with noncompliant detailing in structural components including bond-slip effects in plastic region of frame components and the short column effects from frame infill interaction. Results are presented in terms of modal periods and confirm that the period obtained from theoretical or empirical models reported in literature provides a good estimate. Furthermore, the interstory drift ratio (IDR) at ultimate limit states obtained from nonlinear static and dynamic analyses depict the poor performance of in-plan irregular configurations compared with the counterpart. Moreover, in irregular configurations, the roof displacement calculated from N2 and Extended N2 methods miscalculate the roof displacement obtained from nonlinear dynamic analysis and the difference in results increases from serviceability to ultimate limit states.</p>","PeriodicalId":72922,"journal":{"name":"Engineering reports : open access","volume":"7 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eng2.13114","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646027","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":"Fatigue Analysis and Load Spectrum Generation for Wing-Fuselage Lug Joint With a Focus on Human Safety Transport Category Aircraft","authors":"Rajadurai Murugesan,&nbsp;Srikanth Holalu Venkataraman,&nbsp;Pradeep Kumar Sahoo,&nbsp;Praveena Bindiganavile Anand,&nbsp;Rithick Rithick,&nbsp;Muhammad Imam Ammarullah","doi":"10.1002/eng2.70053","DOIUrl":"https://doi.org/10.1002/eng2.70053","url":null,"abstract":"<p>This research work focuses on fluctuating load spectrum generation and fatigue analysis of a wing-fuselage attachment lug joint, in accordance with the requirements outlined in 14 CFR Part 25 for transport category aircraft. The study involves the generation of a fatigue load spectrum using an exceedance curve, followed by finite element analysis of a simple round-ended lug. The exceedance curve is a statistical tool used to represent the probability of a variable exceeding a particular threshold over a specified time period. It is particularly useful in fatigue analysis as it helps quantify the likelihood of stress levels surpassing critical limits, aiding in the assessment of structural integrity and durability. The CAD model of the lug is created in CATIA, and the corresponding FE model is obtained using Altair HyperMesh. The investigation pertains to a turboprop aircraft weighing approximately 25,000 kg and accommodating 70–90 seats, with ATR 72 and Dash Q 400 being the prominent choices in this category within India. Mission Profiles for these aircraft are obtained from the Directorate General of Civil Aviation (DGCA) website, utilizing scheduled flight data. To ensure the structural integrity of the lug, a static analysis is performed for FE model convergence, leading to the determination of stress concentration factors. Subsequently, fatigue analysis is conducted using Nastran Embedded Fatigue (NEF), considering constant amplitude loading with stress ratios of −1 and 0.1. the fatigue life of the component is predicted based on Goodman and Gerber failure criteria. The analysis yields crucial insights into the fatigue life of the lug and its damage accumulation over time.</p>","PeriodicalId":72922,"journal":{"name":"Engineering reports : open access","volume":"7 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eng2.70053","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646028","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":"Evaluation of damage characteristics of large LNG storage tanks under multiphase loading—An explosion occurs at high temperatures","authors":"Yanyan Li,&nbsp;Dayi Qian","doi":"10.1002/eng2.12846","DOIUrl":"https://doi.org/10.1002/eng2.12846","url":null,"abstract":"<p>With the increasing demand and import of liquefied natural gas (LNG), large LNG receiving stations have been built one after another. LNG leakages can lead to fires or explosions in storage tanks. The coupling accident between explosion and fire is inevitable. In this paper, the selected K&amp;C concrete constitutive model is simulated and verified by LS-DYNA. Based on the verified material body model, it was applied to a large LNG storage tank. A two-step analysis method (thermal analysis—impact analysis) was used to simulate the whole process of impact of different equivalent TNT on a large LNG storage tank at 800°C. The results show that under the combined action of high temperature and bidirectional load equivalent to 500 kg TNT, the center of the tank roof is damaged. Under the combined action of high temperature and two-way load equivalent to 800 kg TNT, the entire tank roof was destroyed, and the maximum expansion deformation distance at the top of the tank reached 137.9 mm. The research results can provide theoretical reference for the safety design of storage tank under impact and high temperature, enhance the bearing capacity of outer tank and improve the safety of tank farm.</p>","PeriodicalId":72922,"journal":{"name":"Engineering reports : open access","volume":"7 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eng2.12846","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143639138","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":"RUL Prediction Method for Lithium-Ion Batteries Based on the SOA-ELM Algorithm","authors":"Meng Xiangdong,&nbsp;Zhang Haifeng,&nbsp;Li Dexin,&nbsp;Dong Yunchang,&nbsp;Zhang Jiajun,&nbsp;Cao Xinyu,&nbsp;Li Gang","doi":"10.1002/eng2.70073","DOIUrl":"https://doi.org/10.1002/eng2.70073","url":null,"abstract":"<p>With the rapid advancement of electrochemical energy storage power stations and electric vehicles, lithium-ion batteries have gained widespread adoption due to their high specific energy and superior power performance. However, the increasing frequency of safety incidents in electrochemical energy storage facilities in recent years has raised significant concerns. Effective monitoring of lithium-ion battery conditions is crucial to ensure the safety of power systems and support the sustainable growth of the electrochemical energy storage industry. Among the key challenges, accurate prediction of the remaining useful life (RUL) of lithium-ion batteries is essential for maintaining the safe and reliable operation of battery management systems. This paper proposes an advanced RUL prediction model that combines the seagull optimization algorithm (SOA) with the extreme learning machine (ELM) to enhance prediction accuracy. The proposed SOA-ELM model is validated using the NASA dataset, and the results demonstrate its effectiveness and potential in improving RUL prediction for lithium-ion batteries. This study contributes to the development of more reliable and efficient battery management systems, paving the way for safer and more sustainable energy storage solutions.</p>","PeriodicalId":72922,"journal":{"name":"Engineering reports : open access","volume":"7 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eng2.70073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622425","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}