Engineering Science and Technology-An International Journal-Jestech最新文献

{"title":"Sustainability assessment integrating BIM and decision-making for modular slab construction against conventional cast-in-situ","authors":"Khadija Mawra ,&nbsp;Khuram Rashid ,&nbsp;Fahad K. Alqahtani ,&nbsp;Idrees Zafar ,&nbsp;Jae-Gwon Jeong ,&nbsp;Minkwan Ju","doi":"10.1016/j.jestch.2024.101891","DOIUrl":"10.1016/j.jestch.2024.101891","url":null,"abstract":"<div><div>Modular construction is an emerging technique being adopted with varying levels of modularization. Assessing its sustainability performance during the planning phase is essential for deciding between precast elements and traditional cast-in-situ methods. To address this, this study developed a comprehensive sustainability assessment framework that integrates economic, environmental, and social indicators. A total of 26 indicators were extracted from the literature and prioritized by 55 experts. Thus, ten indicators were designated critical and quantified for the case of a three-story building using three slab alternatives: cast-in-situ (CIS), I-girder (PIS), and hollow core (PHS). BIM analyses and qualitative data for the ten sustainability criteria were configured into a decision matrix through a multicriteria decision-making approach, i.e., TOPSIS. Simulations were conducted on the matrix by varying the weights of sustainability domains (0.33 – 0.80) to prioritize the best alternative. The BIM analyses revealed significant advantages of PIS, including a 33% and 31% reduction in material and labor costs, respectively, compared to the CIS. Furthermore, precast elements show a 60% reduction in carbon emissions, a 95% decrease in wastage, and an additional benefit of 90% less air pollution. The TOPSIS simulations concluded the PIS system as the most sustainable alternative with the highest relative closeness coefficients (RCC) in all domains and weight cases. The PIS performed best in the environmental with RCCs of 0.83 – 0.97, then in the economic with 0.83 – 0.86, and with 0.69 – 0.83 in the social domain.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"60 ","pages":"Article 101891"},"PeriodicalIF":5.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"1D model and rule-based calibration strategy to improve the performance of a turbocharged spark ignition engine over the whole engine map","authors":"Dino Pirrello ,&nbsp;Luigi Teodosio ,&nbsp;Fabio Berni","doi":"10.1016/j.jestch.2024.101890","DOIUrl":"10.1016/j.jestch.2024.101890","url":null,"abstract":"<div><div>This paper deals with the performance improvement of a turbocharged spark ignition (SI) engine redesigned by adopting a refined 1D model and a rule-based (RB) calibration strategy. The new SI engine operates without the throttle valve and combines an early intake valve strategy with a two-stage compression ratio device. The resulting SI unit represents a promising short-term technical solution and it is also suitable as a flexible fuel engine.</div><div>In a first phase, the engine model is validated with the experiments in the original configuration, and then it is virtually modified to obtain the redesigned solution. In this redesign process, the effects of the variations of engine geometry and valve strategy on combustion and performance are considered by phenomenological in-cylinder sub-models. Afterwards, the RB strategy is implemented into the re-designed engine model and assessed by comparing the results with the ones of an advanced calibration approach, based on an optimization with genetic algorithm performed by coupling the 1D model with an optimizer.</div><div>The RB method replicates with acceptable accuracy the numerical trends of performance and control parameters of the SI engine coming from the optimizer. Once the capability is verified, the RB strategy is adopted to compute the steady operating map of the redesigned engine, with significantly less effort than an optimization. The map provides noticeable benefits in terms of full load torque, fuel consumption at medium-to-low loads and a slight extension of the minimum fuel consumption region. The combustion stability is maintained at acceptable levels, although it is improvable at very low loads and speeds. The presented methodology has a general validity for conventional SI engines and can be efficiently exploited to support the redesign stage of SI units for improved performance, with reduced computational effort. It also offers a method to rapidly compute the operating map of SI engines for subsequent on-vehicle analyses.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"60 ","pages":"Article 101890"},"PeriodicalIF":5.1,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Objective-based survival individual enhancement in the chimp optimization algorithm for the profit prediction using financial accounting information system","authors":"Guomeng Zhao ,&nbsp;Diego Martín ,&nbsp;Mohammad Khishe ,&nbsp;Leren Qian ,&nbsp;Pradeep Jangir","doi":"10.1016/j.jestch.2024.101897","DOIUrl":"10.1016/j.jestch.2024.101897","url":null,"abstract":"<div><div>This paper develops an innovative Objective-based Survival Individual Enhancement approach for the Chimp Optimization Algorithm (OSIE-CHOA) designed to enhance financial accounting profit prediction using information systems. The OSIE-CHOA focuses on improving the search process by simultaneously elevating the fitness of under-performing individuals within a population and strengthening the diversity among the top-performing ones. Within the OSIE-CHOA, we identify the four most promising chimps during each iteration. Subsequently, half of the highest-performing chimps are selected for elimination and repositioning around these fortunate individuals, with an equal probability assigned to each chimp. According to the experimental findings, it is clearly seen that OSIE-CHOA considerably enhances prediction accuracy, allowing a decrease in the root mean square error (RMSE) by 15% and the mean absolute error (MAE) by 18% compared to the traditional CHOA. Moreover, OSIE-CHOA shows a convergence rate that is 20% higher, which makes it a good and efficient tool for financial analysts who require accurate and reliable profit forecasting. By facilitating the optimization of profit prediction models, OSIE-CHOA leads to the improvement of decision-making within the context of financial accounting information systems.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"60 ","pages":"Article 101897"},"PeriodicalIF":5.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Efficient low-cost design for high-frequency, accurate hardware implementation of cardiac Purkinje fiber cells for biomedical engineering approaches","authors":"Shuli Liu ,&nbsp;Bukao Ni ,&nbsp;Xiaobo Wang ,&nbsp;Yanhong Yang ,&nbsp;Mohammad Sh. Daoud ,&nbsp;Jun Sun ,&nbsp;Abdulilah Mohammad Mayet ,&nbsp;Guodao Zhang ,&nbsp;Xinjun Miao","doi":"10.1016/j.jestch.2024.101888","DOIUrl":"10.1016/j.jestch.2024.101888","url":null,"abstract":"<div><div>Within the heart’s ventricle walls are where Purkinje fibers (PFs) are located. They are essential for maintaining a steady cardiac beat because they allow the heart’s conduction system to create synchronized contractions of its ventricles. To replicate or treat some of this organ’s ailments and deficits, hardware representation of the various heart sections is necessary. Models that include a series of differential equations can be used to characterize the performance of Purkinje Fibers (PFs) in Cardiac. To develop hardware that mimics the performance of PF of Cardiac system, the Noble model is updated in this study. Due to the requirement for using units like multipliers, the original model contains non-linear components that are slow and expensive in terms of hardware resources. The main novelty of revised model incorporates non-linear components that have been converted into two base-2 terms accompanied by additional factors. These calculations are executed through efficient and economical digital hardware, including logical shift operations, additions, and subtractions, enabling high-speed processing. To validate the precision and practicality of the suggested model, a digital platform, Virtex-7 FPGA, is employed. The findings demonstrate the suggested model’s simplicity of implementation on this board and its capability to generate various PF output patterns at a maximum frequency of 381.42 MHz. The proposed digital circuit can be applied in application-based fields according to high-speed, low-cost, and accurate design. Based on the high-switching speed of neural data transferring in the human brain, other organs that are realized on hardware platforms need to be designed in high-frequency (speed-up) for adaptation with the brain. Due to removing the non-linear terms, the modified model works 1.95 times faster than the original one and saves the FPGA resources up to 35%. In case of real-world applications, an efficient low-cost hardware design for high-frequency, accurate replication of cardiac Purkinje fiber cells has the potential to revolutionize the development of medical devices for diagnosing and treating cardiac conditions. The speed and cost-effectiveness of design make it particularly promising for the creation of advanced cardiac simulation and treatment systems. The high-speed, low-cost, and accurate hardware design has broader implications for biomedical engineering beyond the cardiac system. The ability to efficiently replicate the functions of biological systems using hardware could open doors for developing high-speed, low-cost, and accurate hardware models for simulating and understanding other biological processes, such as neural data processing in the human brain or the function of other vital organs.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"60 ","pages":"Article 101888"},"PeriodicalIF":5.1,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"A novel sub-windowing local binary pattern approach for dorsal finger creases based biometric classification system","authors":"Imran Riaz ,&nbsp;Ahmad Nazri Ali ,&nbsp;Haidi Ibrahim","doi":"10.1016/j.jestch.2024.101882","DOIUrl":"10.1016/j.jestch.2024.101882","url":null,"abstract":"<div><div>Biometric authentication systems have been widely deployed in various applications, including security systems, bank transactions and authentication on smart electronic devices. Obtaining the salient and distinctive features is very important for achieving high accuracy in biometric authentication systems. Local binary pattern (LBP) variants are the best-performing local descriptors and are popular due to computational simplicity and flexibility. However, most of the existing LBP variants consider a 3 × 3 window with one specific central pixel for all neighborhoods, which affects the sensitivity to non-monotonic intensity changes and reduces the robustness of the feature description. Thus, a new variant of LBP called TD-LBP is introduced, which is based on the four T-shape sub-windows and two diagonal (D) regions. Inspired by the sub-windowing approach to capture the microstructure information of the image, TD-LBP first divides the 3 × 3-pixel window into four sub-regions of T-shape structure and then takes two diagonal regions to extract more texture information. Three different classifiers, artificial neural network (ANN), support vector machine (SVM), and k-nearest neighbor (KNN) are employed to evaluate the effectiveness of the proposed approach for dorsal finger crease biometric system. Experiments conducted on the self-collected dorsal finger crease dataset demonstrate the prominent performance and suitability of the proposed TD-LBP for a newly explored finger crease biometric identifier. The proposed approach was able to achieve 96.67 %, 89.26 %, and 82.22 % classification accuracies for ANN, SVM, and KNN classifiers, respectively. Moreover, we clearly validate the viability of the proposed TD-LBP descriptor for the dorsal finger crease biometric trait by comparing the results with state-of-the-art biometric system based LBP descriptors. The significance of the TD-LBP method is demonstrated with improved verification and identification results through receiver operating characteristic (ROC) and cumulative match characteristic (CMC) curves respectively.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"60 ","pages":"Article 101882"},"PeriodicalIF":5.1,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"A green hydrogen production model from solar powered water electrolyze based on deep chaotic Lévy gazelle optimization","authors":"Heba Askr ,&nbsp;Mahmoud Abdel-Salam ,&nbsp;Václav Snášel ,&nbsp;Aboul Ella Hassanien","doi":"10.1016/j.jestch.2024.101874","DOIUrl":"10.1016/j.jestch.2024.101874","url":null,"abstract":"<div><div>This paper presents a Deep Learning (DL) model designed for green hydrogen production using a solar-powered water electrolyzer. The model operates in four phases, beginning with the analysis of a solar radiation dataset and culminating in the prediction of green hydrogen production. A novel hybrid model, termed <em>DeepGaz</em>, is introduced to predict the solar energy required for hydrogen production. DeepGaz combines a new Chaotic-Lévy variant of the gazelle optimization algorithm (CGOA) with a recurrent neural network (RNN/LSTM) for hyperparameter optimization. To validate the performance of the proposed model, CGOA is first tested on the CEC2022 benchmark problems and compared with other advanced metaheuristic algorithms, with its accuracy further confirmed using Wilcoxon’s rank-sum statistical analysis. Subsequently, DeepGaz is applied to a solar-based green hydrogen dataset, optimizing key parameters such as solar radiation, temperature, wind direction, and speed, collected from the HI-SEAS weather station in Hawaii over a four-month period. The results show that DeepGaz significantly improves the prediction process, achieving an average daily hydrogen production of 15.5199 kg/day during the four-month study. The model exhibits strong potential in predicting green hydrogen production, excelling in computational time, convergence stability, and overall solution accuracy.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"60 ","pages":"Article 101874"},"PeriodicalIF":5.1,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Intensified electric field based highly sensitive backbone-shaped C and X band microwave metamaterial sensor for permittivity characterization applications","authors":"Mohammad Lutful Hakim ,&nbsp;Mohammad Tariqul Islam ,&nbsp;Mandeep Singh Jit Singh ,&nbsp;Touhidul Alam ,&nbsp;Abdulmajeed M. Alenezi ,&nbsp;Mohamed S. Soliman","doi":"10.1016/j.jestch.2024.101877","DOIUrl":"10.1016/j.jestch.2024.101877","url":null,"abstract":"<div><div>This paper proposed a novel design of planar microwave sensor aimed at distinguishing and analyzing the permittivity properties of regular solid materials with high sensitivity for C and X band applications. These sensor utilize a planar backbone-shaped metamaterial resonator with spur line filters, which intensify the electric field. This approach allows the permittivity characteristics of the resonator to influence factors like resonance frequency shifting and notably high sensitivity, reaching 6.61 % at reflection mode. The sensitivity of these sensor is validated using common materials (Rogers 4350B, Rogers RT5880, UL1250 and FR-4) through the specific experimental methodology. The measured results agree well with the simulated results, and this validation process permits the potential characterization and detection of materials. Furthermore, the paper derives a mathematical formula to obtain the properties of materials using resonance frequency shifting. Consequently, proposed sensor represent a promising solution for characterizing material permittivity properties.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"60 ","pages":"Article 101877"},"PeriodicalIF":5.1,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Turkish scene text recognition: Introducing extensive real and synthetic datasets and a novel recognition model","authors":"Serdar Yıldız","doi":"10.1016/j.jestch.2024.101881","DOIUrl":"10.1016/j.jestch.2024.101881","url":null,"abstract":"<div><div>In the advancing field of computer vision, scene text recognition (STR) has been progressively gaining prominence. Despite this progress, the lack of a comprehensive study or a suitable dataset for STR, particularly for languages like Turkish, stands out. Existing datasets, regardless of the language, tend to grapple with issues such as limited sample quantity and high noise levels, which considerably restrict the progression and overall efficacy of STR research and applications. Addressing these shortcomings, we introduce the Turkish Scene Text Recognition (TS-TR) dataset, one of the most substantial STR datasets to date, comprising 7288 text instances. In addition, we propose the Synthetic Turkish Scene Text Recognition (STS-TR) dataset, an enormous collection of 12 million samples created using a novel histogram-based method, more efficient than common synthetic data generation methods. Moreover, we present a novel recognition model, the Masked Vision Transformer for Text Recognition (MViT-TR), which achieves a word accuracy of 94.42% on the challenging TS-TR test dataset, underlining its robustness and performance efficacy. We extend our investigation to the influence of synthetic datasets, the utilization of patch masking, and the function of the position attention module on recognition performance. To foster future STR research, we have made all datasets and source codes publicly available.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"60 ","pages":"Article 101881"},"PeriodicalIF":5.1,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"A fully-differential improved recycling folded-cascode amplifier for fast-settling switched-capacitor applications","authors":"Mohammad Yavari,&nbsp;Mohammadamin Mohtashamnia","doi":"10.1016/j.jestch.2024.101886","DOIUrl":"10.1016/j.jestch.2024.101886","url":null,"abstract":"<div><div>In this paper, a fully-differential class A single-stage CMOS operational transconductance amplifier (OTA) is presented for high-speed switched-capacitor (SC) applications. The main target is to improve both large and small signal parameters in order to achieve a fast-settling performance with sufficient accuracy in SC circuits without needing more power dissipation. Several techniques including the current recycling, phase margin enhancement using high-speed current mirrors, and cross-coupled local positive feedback transistors are employed in the traditional folded-cascode amplifier (FCA) to realize a multi-path single-stage OTA with increased unity-gain frequency, slew rate, and DC gain. Detailed analytical calculations and circuit level simulation results are collected to compare the suggested OTA with alternatives. Based on the analytical calculations, the proposed amplifier significantly outperforms the traditional folded-cascode OTA regarding both large-signal and small-signal parameters. The suggested OTA is simulated in TSMC 65 nm CMOS technology in a SC integrator configuration to verify its usefulness. According to the simulation results, the DC gain, unity-gain bandwidth, and slew rate of the proposed OTA are improved about 22.9 dB, 576 %, 241 %, respectively, compared to the conventional FCA with almost the same power dissipation and other similar simulation conditions. The proposed OTA can be utilized in fast-settling switched-capacitor circuits as well.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"59 ","pages":"Article 101886"},"PeriodicalIF":5.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Experimentally validated numerical investigation on the behavior of composite shear walls subjected to cyclic loading","authors":"M. Hasim Kisa ,&nbsp;S. Bahadir Yuksel ,&nbsp;Ramazan Özmen","doi":"10.1016/j.jestch.2024.101884","DOIUrl":"10.1016/j.jestch.2024.101884","url":null,"abstract":"<div><div>Due to design considerations, reinforced concrete (RC) shear walls, with narrow cross-sections containing excessive steel reinforcing bars, are commonly used in tall buildings for seismic resistance to produce functional floor plans. However, as is particularly evident in the end region components of the RC shear walls, bulky reinforcement can lead to difficulties in concrete pouring and cause concrete segregation. Accordingly, this study concentrates on the numerical investigation of composite shear wall behavior created using cold-formed steel sheet (CFSS) elements under cyclic loading. Three composite shear wall test specimens, having L-shaped CFSSs utilized in the shear wall end regions, were modeled on a 1/3 scale with ABAQUS finite element analysis software. The specimens’ crack propagation behavior was investigated at each loading stage in the numerical analyses and validated with experiments. Furthermore, the lateral force-top displacement relationship was used to assess the wall’s behaviors. According to the results, the modeling approach accurately simulates the composite shear wall’s behavior. Finally, a parametric analysis was performed with the verified numerical simulations to examine the effect of the CFSS elements’ material properties on the composite shear walls. The parametric studies revealed that the steel sheets’ yield strength and position from the neutral axis affected the shear walls’ lateral load-bearing capacity.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"59 ","pages":"Article 101884"},"PeriodicalIF":5.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}