bluuebunny/crossref_metadata_2025_split huggingface dataset:
Techno-economic analysis of solar trigeneration system
Authors: Anand B , Murugavelh S 
Published: October 2019

Abstract
In this work, a techno-economic analysis of concentrated photovoltaic/thermal collector (CPVT) driven desalination and cooling plant is presented. The system comprises of a CPVT collector, a humidification-dehumidification (HDH) desalination unit and vapour compression refrigeration (VCR) unit. The CPVT collector having 10 m2 aperture area and a triple junction PV panel placed at the receiver supplies required hot water to the HDH desalination system. Chilled water generated from 0.5 hp compressor operated VCR unit is supplied to the dehumidifier of HDH desalination. The process of cooling and dehumidification using chilled water result in increased desalination yield and resulting air is suitable for air conditioning purpose. The work is aimed to evaluate the annual performance of the trigeneration plant and to estimate the unit cost of fresh water and payback period. The annual performance of the plant is evaluated for the typical metrological year data for the location of Vellore, India. Results show that the annual desalination, electricity and cooling output are 4.2 m3/yr and 3.46 MWh/yr and 0.788 MWh/yr respectively. The daily average desalination and cooling output are 11.12 L/day and 2.47 kWh/day respectively. The annual electricity consumption of the solar cogeneration plant is 6570 kWh/yr. The estimated unit cost of fresh water is ¹10/L. By considering the interest rate of 9 % and total life time of the plant as 20 years, the payback period is estimated to be 6.5 years.
A Numerical Study of fluid flow and Pressure Drop analysis of Catalytic Converter using Commercial CFD code
Authors: Patil Aniket , Takale Mayuresh , Thirunavukkarasu Bageerathan , Thundil Karuppa Raj R 
Published: October 2019

Abstract
In recent years catalytic converter is a necessary device to achieve low emissions in all the vehicles. This study of the after treatment device is to understand the fluid flow and to optimize the design. It is important to know the pressure drop taking place inside the catalytic converter in order to design the catalytic converter. In this paper, a numerical study has been conducted to study the effect of fluid flow inside the catalytic converter and effect of change in geometry using commercial CFD tool. The working fluid considered in this study is air. A 3D simulation is carried out having straight inlet pipe and with change in inlet pipe angle of the catalytic converter. The monolith substrate region is modeled as a porous medium. The governing equations namely conservation of mass, momentum are used for solving the analysis. The analysis involved determining pressure variation across the geometry of the converter system for different mass flow rates and change inlet pipe angle. The numerical results were used determine the pressure drop across the substrate and the flow characteristics inside the catalytic converter. The numerical study shows good conformance with the experimental results with maximum deviation of error 2.54% for straight inlet pipe configuration. The effect of change in inlet pipe angle, effect of inlet cone angle and effect of splitting the substrate into sections are also presented.
A Review on Computational Fluid Dynamics Analysis on Greenhouse Dryer
Authors: Natarajan Sendhil Kumar , Elavarasan E 
Published: October 2019

Abstract
Over the decades Solar energy has been utilizing for the conservation of various agricultural products at different zones in the world. Existing literature reveals that open dehydrating is the mostly followed for the desired application and its efficiency limited to certain extent. In order to overcome the limitations, solar dehydrating is proposed and implemented by various researchers. Greenhouse dryer found to be most appropriate technique to preserve different kinds of fruits, vegetables and grain products. In recent years, a great deal of research has been focused to enhance the performance of the selected method. Traditionally it is confined to empirical form and later it is extended to CFD analysis to obtain effective results through simulations. The present article presents the extensive survey over empirical and CFD analysis of Green house dryer application on dehydrating in both active and passive mode of convections.
Organizational Level Cloud Diagnostics System of Complex Electromechanical System Based on SOA
Authors: Cai Deyong , Zhao Yingying , Deng Jing , Zhang Dongchen 
Published: October 2019

Abstract
In order to better solve the problem of insufficient support ability of high-tech electromechanical system, the cloud computing model was introduced into fault diagnostics system of electromechanical system. An open, loose-coupled architecture of Integrated Diagnostic System (IDS) for electromechanical system is put forward basing on Service- Oriented Cloud Computing Architecture (SOCCA). Test and diagnosis resources of repair shop at all levels and total life cycle information resources of electromechanical system were integrated by Portable Maintenance Aid (PMA) with cloud diagnostics platform. According to different demands, Test and diagnosis resources can be divided into data, software, platform and infrastructure, which can be provided on demand to maintainer of all levels as a service. This allows more complex maintenance issues to be accomplished at Forward Operating Locations (FOLs) by better utilizing the most relevant diagnostic information to enable direct, real-time, and engineering assistance when needed. Organizational Level (O-Level) IDS can effectively improve O-level maintainer support ability of complex electromechanical system.
Design of Answer-Grabbing Devices Based on Labview
Authors: Zhao Yang , Rui Wu , Youjia Wang , Yuan Li 
Published: October 2019

Abstract
Answer-grabbing devices are widely used in various TV programs, competitions and other fields. At present, with the increasing demand for fairness in competition, higher requirements have been put forward for answer-grabbing devices, such as higher sensitivity, better reliability, more powerful functions and so on. To meet this requirement, this paper designs a answer-grabbing devices based on Labview, which consists of answer-grabbing module, display module, compere button module and control module. Through design of front panel and program, debugging and operation, the functions of answer-grabbing device, as timing, scoring and zero clearing are finally realized. Experiments show that the system has high reliability, sensitivity and multiple functions.
Two-dimensional Aerodynamic Loads of Thermal Protection System Considering Different Widths of the Strain Isolation Pad
Authors: Feng Yupeng , Cheng Jialin , Li Tao , Chen Bin 
Published: October 2019

Abstract
Thermal Protection System (TPS) is widely adopted to prevent aircraft substructure from the high environment temperature which is assembled by the ceramic tile, the strain isolation pad (SIP) and the substrate structure. The surface of shuttle is covered by individual ceramic tiles which are bonded to the substrate. The structure of SIP is the significant component of TPS which has important influence on the aerodynamic loads of TPS. To reveal the effect of the width of SIP on the aerodynamic loads, the two-dimensional TPS models considering various widths of SIP, 0.5mm, 0.7mm, 1.0mm, 1.3mm and 1.5mm, are founded and are simulated by computational fluid dynamic (CFD) method. The models are established by combining SIP and the ceramic tile on the surface of NACA0012. The flow around TPS, including flow around NACA0012 and internal flow, is simulated by solving Navier-Stokes (N-S) equation and Spalart-Allmaras (S-A) model. The pressure distributions around TPS are obtained and numerical results show: (1) In X and Y direction, with the width of SIP, △w, being 1.0mm, the forces are minimum, 159.9N in X-direction and 313.3N in Y-direction, respectively; (2) The different force of tile-II is related to both the pressure distribution and the flow speed around tile-II.
Simulation of Stress Distribution and Deformation Analysis for Cantilever I-beams Using ABAQUS Software
Authors: Runsheng Wen , Yang Zhang 
Published: October 2019

Abstract
In this paper, the stress distribution of the I-beam cantilever beam is simulated by ABAQUS software, and the uniform load increases with time on the surface of the I-beam to observe the position of the maximum stress and the deformation of the right end.
Experimental Study of Acoustically Enhanced Heat-Transfer from Copper Sphere in a Steady Flow Field
Authors: Weilong Xu , Genshan Jiang , Weicai Peng , Xuesong He 
Published: October 2019

Abstract
The combined effects of acoustic field and flow field on the forced convective heat transfer rate during cooling of a stationary sphere were investigated experimentally. The acoustic frequency is in the range of 100 to 2500 Hz, with the velocity ratio of acoustic velocity and flow velocity is in the range of 0.59 to 4.76. The relationship among sound pressure levels, frequency, flow velocity and the diameter of the sphere with the temperature gradient of the sphere were analyzed. The results show that higher velocity ratio cause higher heat-transfer rate. However, when the sphere size is 5 mm, the heat transfer rate is always lower than that without an acoustic field during our experiment, and when the sphere size is 10 mm and the velocity ratio is higher than 3.38, the heat transfer rate is higher than that without an acoustic field, but when the size of the copper sphere is 15 mm, the velocity ratio is decreased to 1.89. There is a special frequency, at which Nu reaches a maximum. This special frequency increases with increasing SPLs. The conclusions highlight a good application prospect in combustion for the boiler.
Analysis Line Approach for Assembly Tolerance Analysis
Authors: Peng Heping , Peng Zhuoqun 
Published: October 2019

Abstract
This work presents the analysis line approach for assembly tolerance analysis. Firstly, the product functional requirements and geometric variations of part positioning features can be converted into small displacements of a series of analysis points along the specified analysis directions. The small displacement torsor (SDT) theory is employed to establish the mathematical relations between the displacements of these analysis points. And then, the variation transfer relations and tolerance accumulation calculations of various orthogonal joints between different parts are studied to determine the maximum displacement of the analysis points on the functional surface. The final displacement accumulation results of the functional surface are compared with the geometric functional requirements of the product, so as to judge whether the product functional requirements are met. Finally, an example is given to demonstrate the effectiveness of the proposed analysis line approach.
Experimental research of nonlinear damage diagnosis using ARMA/GARCH method
Authors: Guo Huiyong , Zhou Rong 
Published: October 2019

Abstract
Nonlinear damage such as fatigue crack often occurs in some engineering structures, which brings challenges in structural damage diagnosis. A nonlinear damage diagnosis method based on ARMA/GARCH model is proposed to extract the nonlinear characteristic caused by cracks. First, the background description of ARMA/GARCH model is given and a damage diagnosis index based on this model is proposed to detect nonlinear damage location. The main advantage of ARMA/GARCH model is that this hybrid model can well simulate structural time domain acceleration response and effectively extract the nonlinear damage feature. An experiment of three-storey frame structure, which utilized a mechanism constituted of a bumper and a center column to model breathing crack, is studied. The results show that the damage diagnosis index based on ARMA/GARCH model exhibits good accuracy.
Echo chambers in climate science
Authors: Jasny Lorien , Fisher Dana R 
Published: October 2019

Abstract
To date, echo chambers in American climate politics have been found to focus on the climate-related policy instrument that is under review. In this paper, we explore how echo chambers change over time, integrating data collected on the federal climate policy network after the first 100 days of the Trump Administration had passed with data collected during two periods during the Obama Administration. We employ Exponential Random Graph (ERG) models to test for the similarity and differences over time in the top policy actors working on the issue during each time period. We then compare the newer findings from 2017 to previous work on data from 2010 and 2016. We find that echo chambers continue to play a significant role in the network of information exchange among policy elites and in the adoption of new information sources over time. In contrast to previous findings, however, where echo chambers centered on specific policy instruments—a binding international commitment to emission reductions or the Obama Administration’s Clean Power Plan—opinion regarding whether or not climate change is caused by humans (i.e. is anthropogenic) has become the central organizing force behind echo chambers in the US climate policy network. These results provide new empirical evidence that ideological polarization drives the selection of expert information in the debate around climate politics. Moreover, our results show how misinformation diffuses among political elites working on the issue of climate change.
Point defects, compositional fluctuations, and secondary phases in non-stoichiometric kesterites
Authors: Schorr Susan , Gurieva Galina , Guc Maxim , Dimitrievska Mirjana , Pérez-Rodríguez Alejandro , Izquierdo-Roca Victor , Schnohr Claudia S , Kim Juran , Jo William , Merino José Manuel 
Published: October 2019

Abstract
The efficiency of kesterite-based solar cells is limited by various non-ideal recombination paths, amongst others by a high density of defect states and by the presence of binary or ternary secondary phases within the absorber layer. Pronounced compositional variations and secondary phase segregation are indeed typical features of non-stoichiometric kesterite materials. Certainly kesterite-based thin film solar cells with an off-stoichiometric absorber layer composition, especially Cu-poor/Zn-rich, achieved the highest efficiencies, but deviations from the stoichiometric composition lead to the formation of intrinsic point defects (vacancies, anti-sites, and interstitials) in the kesterite-type material. In addition, a non-stoichiometric composition is usually associated with the formation of an undesirable side phase (secondary phases). Thus the correlation between off-stoichiometry and intrinsic point defects as well as the identification and quantification of secondary phases and compositional fluctuations in non-stoichiometric kesterite materials is of great importance for the understanding and rational design of solar cell devices. This paper summarizes the latest achievements in the investigation of identification and quantification of intrinsic point defects, compositional fluctuations, and secondary phases in non-stoichiometric kesterite-type materials.
The Distinctive Character of Musical Experience
Authors: Peacocke Christopher 
Published: October 2019

Abstract
The goal of this paper is to use the dual resources of the contemporary theory of intentional content and the notion of experiencing something metaphorically as something else, which I have defended in my earlier work, to explain the distinctive character of musical experience. These resources are used to explain Felix Mendelssohn’s point that emotional content in music can be more specific than anything capturable in language; to give an account of the role of metaphor in musical experience that does not generate insoluble puzzles; to formulate a Principle of Acquaintance for the content of musical experience; to give a theory of intentional subjects or ‘personae’ in music, and their significance; to explain two ways of hearing action in music; and to elaborate the significance for musical experience of the fact that perception of music is perception of agency.
CRISPR-Cas9 genome editing for cancer immunotherapy: opportunities and challenges
Authors: Chen Ming , Xu Jiang , Zhou Yang , Zhang Silin , Zhu Di 
Published: October 2019

AbstractCancer immunotherapy, consisting of antibodies, adoptive T-cell transfer, vaccines and cytokines, is a novel strategy for fighting cancer by artificially stimulating the immune system. It has developed rapidly in recent years, and its efficacy in hematological malignancies and solid tumors has been remarkable. It is regarded as one of the most promising methods for cancer therapy. The current trend in immunotherapy research seeks to improve its efficacy and to ensure the safety of cancer immunotherapy through the use of gene editing technologies. As it is an efficient and simple technology, the CRISPR-Cas9 system is highly anticipated to dramatically strengthen cancer immunotherapy. Intensive research on the CRISPR-Cas9 system has provided increasing confidence to clinicians that this system can be put into clinical use in the near future. This paper reviews the application and challenges of CRISPR-Cas9 in this field, based on various strategies including adaptive cell therapy and antibody therapy, and also highlights the function of CRISPR/Cas9 in the screening of new cancer targets.
Implementation And Evaluation Of The mCityPASS Protocol For Secure And Private Access To Associated Touristic Services
Authors: Payeras-Capella M Magdalena , Mut-Puigserver Macia , Conejero-Alberola Pau , Castella-Roca Jordi , Huguet-Rotger Llorenç 
Published: October 2019

Abstract
Touristic City Cards are managed by some city councils in order to make a step toward the SmartCity concept. Touristic City Cards enable the integration of different touristic services so as to facilitate the access to transport, cultural sites and touristic attractions to visitors. In this paper, we introduce a secure mobile system called mCityPASS that allows the smart management and secure access to this kind of service. We have implemented the system in a smartphone platform in such a way that the mobile device contains the purchased access element that holds a set of e-tickets that enables the visitors of a city to make use of the specified touristic services. The paper presents the details of the whole implementation of the system and an evaluation of the performance and the effectiveness of it. Also, an analysis of the privacy and the security properties of the presented scheme has been conducted. As a result, we can assure that the system preserves the privacy of the tourists and fulfills the more challenging security properties: fairness, non-overspending, exculpability, unsplittability and selective reusability.
The role of 99mTc-HMPAO-labelled white blood cell scintigraphy in the diagnosis of cardiac device-related infective endocarditis
Authors: Holcman Katarzyna , Małecka Barbara , Rubiś Paweł , Ząbek Andrzej , Szot Wojciech , Boczar Krzysztof , Leśniak-Sobelga Agata , Hlawaty Marta , Wiśniowska-Śmiałek Sylwia , Stępień Agnieszka , Podolec Piotr , Kostkiewicz Magdalena 
Published: October 2019

Abstract

Aims
The hybrid technique of single-photon emission tomography and computed tomography with technetium99m-hexamethylpropyleneamine oxime–labelled leucocytes (99mTc-HMPAO-SPECT/CT) is an emerging diagnostic technique in patients with cardiac device-related infective endocarditis (CDRIE). This prospective study assessed the 99mTc-HMPAO-SPECT/CT diagnostic profile and its added value to the modified Duke criteria (mDuke) in CDRIE diagnostic work-up.

Methods and results
The study examined 103 consecutive patients with suspected CDRIE, who underwent 99mTc-HMPAO-SPECT/CT. Diagnostic accuracy was calculated based on a final clinical CDRIE diagnosis, including microbiology, echocardiography, and a 6-month follow-up. Subsequently, we compared the diagnostic value of the initial mDuke classification with a classification including 99mTc-HMPAO-SPECT/CT positive results as an additional major CDRIE criterion: mDuke-SPECT/CT.
Overall, CDRIE was diagnosed in 31 (31%) patients, whereas 35 (34%) 99mTc-HMPAO-SPECT/CT were positive. 99mTc-HMPAO-SPECT/CT was characterized by 86% accuracy, 0.69 Cohen’s kappa coefficient, 84% sensitivity, 88% specificity, 93% negative, and 74% positive predictive values. The original mDuke displayed 83% accuracy, 0.52 kappa, whereas mDuke-SPECT/CT had 88% accuracy, and 0.73 kappa. Compared with mDuke, mDuke-SPECT/CT showed significantly higher sensitivity (87% vs. 48%, P &lt; 0.001). According to mDuke, 49.5% of patients had possible CDRIE, and after reclassification, that figure dropped to 37%. Furthermore, having assessed the diagnosis categorization improvement following the incorporation of 99mTc-HMPAO-SPECT/CT, the net reclassification index value was found to be 31.4%.

Conclusion
In patients with CDRIE, 99mTc-HMPAO-SPECT/CT provides high diagnostic accuracy, whereas a negative scan excludes CDRIE with high probability. Inclusion of 99mTc-HMPAO-SPECT/CT into mDuke diagnostic criteria yields significantly higher sensitivity and a reduction in possible CDRIE diagnoses.
Impact of reduced-dose prasugrel vs. standard-dose clopidogrel on in-hospital outcomes of percutaneous coronary intervention in 62 737 patients with acute coronary syndromes: a nationwide registry study in Japan
Authors: Akita Keitaro , Inohara Taku , Yamaji Kyohei , Kohsaka Shun , Numasawa Yohei , Ishii Hideki , Amano Tetsuya , Kadota Kazushige , Nakamura Masato , Maekawa Yuichiro 
Published: October 2019

Abstract

Aims
In Japan, reduced-dose prasugrel (loading/maintenance dose, 20/3.75 mg) has been approved for use in acute coronary syndrome (ACS) patients undergoing percutaneous coronary intervention (PCI), because of the higher bleeding risk among East Asians. However, its safety in the real-world population has not been investigated. We aimed to evaluate the effectiveness and safety of reduced-dose prasugrel vs. standard-dose clopidogrel in ACS patients undergoing PCI.

Methods and results
Acute coronary syndrome patients who underwent PCI in 2016, who were treated with either reduced-dose prasugrel or standard-dose clopidogrel in addition to aspirin, were identified from the nationwide Japanese PCI registry. The primary outcome was in-hospital mortality following PCI. Secondary outcomes included stent thrombosis and bleeding complication after PCI. Among 62 737 ACS patients who underwent PCI at any of 986 participating centres across Japan (clopidogrel 31.9%; prasugrel 68.1%), we identified 12 016 propensity score-matched pairs (24 032 patients; age 69.4 ± 12.2 years; female 24.9%; ST-elevation myocardial infarction 42.3%). Compared with standard-dose clopidogrel, reduced-dose prasugrel was associated with increased risk of bleeding [odds ratio (OR) 1.65, 95% confidence interval (CI) 1.10–2.51; P = 0.016], but both had similar rates of mortality (OR 1.11, 95% CI 0.89–1.38; P = 0.371) and stent thrombosis (OR 1.29, 95% CI 0.73–2.30; P = 0.387) as well as similar falsification endpoints of cardiac tamponade and emergent operation.

Conclusion
In Japanese ACS patients undergoing PCI, the risk of bleeding is higher when using reduced-dose prasugrel than when using standard-dose clopidogrel, but there is no significant difference in in-hospital mortality and incidence of stent thrombosis between the two antiplatelet regimens.