bluuebunny/crossref_metadata_2025_split huggingface dataset:
Adsorption mechanism of the environmentally friendly insulating gas C5F10O and its main decomposition products on a Cu (1 1 1) surface
Authors: Zeng Fuping , Feng Xiaoxuan , Lei Zhicheng , Wu Siying , She Congdong , Miao Yulong , Zhang Shiling , Tang Ju 
Published: December 2020

Abstract
The perfluoroketone C5F10O, not only has good environmental compatibility, but also has excellent insulation properties and has the potential to replace SF6 in medium and low voltage switchgear. This paper focuses on the compatibility of C5F10O and its main decomposition products with the copper material inside the equipment and specifically constructs several adsorption models of C5F10O and its main decomposition products on a Cu (1 1 1) surface. The adsorption mechanism was studied from a system structure, electron density distribution and density of states perspective. The results showed that C5F10O mainly adsorbed chemically on the Cu surface through carbonyl oxygen atoms. Its maximum adsorption energy is −24.48 kcal mol−1, with electrons transferring from the copper surface to the adsorbed oxygen atom; and the adsorption energies of the main breakdown products CF4, C2F6, C3F8, C3F6, CF2O, C2F4O and CO2 with the surface are all less than −9.56 kcal mol−1. There is no obvious electron transfer between these decomposition gases and the copper surface, and thus, they belong to physical adsorption; while the adsorption energies of C3F6O, C2F4 and CO in the top, bridge and Hcc sites are respectively −9.661 kcal mol−1, −14.651 kcal mol−1 and −25.489 kcal mol−1, electrons on the copper surface transfer to the oxygen atom of C3F6O and carbon atoms of C2F4 and CO, forming stable chemical bonds, which belong to chemical adsorption. Through further analysis of the electron density of states, it is found that C5F10O and C3F6O bonded to the copper surface mainly by p orbitals on carbonyl oxygen atom and the pseudogaps are 3.2 eV and 2.5 eV. C2F4 and CO bonded to the copper surface by sp hybrid orbitals of carbon atoms, with a pseudogap of about 4 eV. Based on the above analysis, it can be seen that C5F10O and its main decomposition products C3F6O, C2F4 and CO have poor compatibility with metal copper.
Mechanical Characteristics of Geopolymer Mortar in Ambient Air and Immersion Curing
Authors: Sneha S S , Ramaswamy K P 
Published: December 2020

Abstract
Geopolymer concrete is an environmentally sound alternative to the conventional concrete, which could assist in reducing the carbon footprint that augments the process of global warming. The current work presents a comparative study on the compressive strength and ultrasonic pulse velocity of geopolymer mortar mixes at activator modulus (SiO2/Na2O) of 1.25, 1.50 and 1.75 subjected to ambient air curing and immersion curing. The dynamic modulus of elasticity determined from the UPV results are analogized with the compressive strength. The study also aims at developing economic geopolymer mortar with acceptable mechanical properties. The three mixes considered for the study include geopolymer mortar with 100% slag, 50% slag and 50% fly ash and 50% red mud and 50% slag. The molarity of alkaline solution and sand-binder ratio is fixed as 8M and 1.50 respectively. The results indicate that the immersion cured specimens of the mix with 50% slag and 50% fly ash corresponding to the activator modulus 1.50 has satisfactory strength performance. The dynamic modulus of elasticity was found to be higher for the immersion cured specimens.
Comparison of the energy consumption in the production of natural and recycled concrete aggregate: A case study in Kerala, India
Authors: Ittyeipe Alan V , Thomas Anu V , Ramaswamy K P 
Published: December 2020

Abstract
The growth of construction sector in India is gaining pace to cater to the overwhelming demands of the rising urban population and this has in turn resulted in overexploitation of natural resources for production of natural aggregates (NA). The prospects of recycling demolition debris to produce recycled concrete aggregate (RCA) is little explored, due to the underestimation of actual data on the construction and demolition (C&D) waste generated in India. The different stages involved in the production of NA and RCA were investigated by field study in an aggregate quarry and a demolition site in Kerala, India. The energy consumption involved in the recycling of the demolition debris from a reinforced concrete (RC) structure and the production of NA was determined. The energy consumed to produce 1 tonne of NA and RCA was determined as 21112 KJ/tonne and 16178 KJ/tonne respectively. The production of RCA showed a 30.5% savings in the energy consumption compared to that of NA. A specific sensitivity analysis suggested that the energy consumed to produce RCA was less than that to produce NA for a maximum distance of 13.5 km. As the energy consumption was evaluated based on the diesel consumption of the machinery involved, the reduced diesel consumption and its subsequent cost savings could also add to the prospects of using RCA. Although the results are site specific, such local case studies could contribute to the development of C&D waste recycling infrastructure in the country.
Mechanical properties of alkali-activated mortar in organic acid environment
Authors: Ajay Athira , Ramaswamy K P , Thomas Anu V 
Published: December 2020

Abstract
Ingression of acid into the concrete results in early degradation by microstructural alteration of phases leading to mass changes, weakening of mechanical properties and increase in porosity due to calcium leaching. This paper discusses the resistance of geopolymer composites (GP) and conventional concrete system (OPC) in 0.125M and 0.25M concentrations of acetic acid medium by investigating the changes in the mechanical properties of mortar. The results of the study reveal that the GP samples display increased resistance to acetic acid attack not only in terms of mass and strength loss but also with reference to the variation in ultrasonic pulse velocity and relative dynamic modulus of elasticity. The results also manifest that blends of ground granulated blast furnace slag (GGBS) and fly ash (class F) (FA) with red mud (RM) offer increased acid resistance due to the nature of the main binder gel produced in GP systems.
An experimental study on assessing the corrosion performance of steel reinforcement for the durability of concrete
Authors: Naveen Kumar V , Daniel Ronald Joseph J , Ashok M , Suresh Kumar MP 
Published: December 2020

Abstract
Durability of structures made of steel-reinforced concrete is greatly to scale back the speed of moisture transport or the ingress of aggressive ions. An experimental study to assess the initial corrosion behaviour of Thermo-Mechanically Treated rebar (TMT), Corrosion Resistant rebar (CRS) and Fusion bonded Epoxy Coated rebar (EC) under controlled condition (CC) and in simulated marine environment condition (SME). Rebars of 12 mm dia with a span of 250 mm are enclosed in specimens having and length and breadth of 350 mm and a thickness of 138 mm then initial study was carried out. The corrosion potential is noted throughout the specified duration and once in three days of observing the corrosion potential gives the likelihood of corrosion rise. The A. C Impedance and Polarization resistance methods are used to study the corrosion rate in the surface of the rebar. The polarisation resistance (Rp) of TMT rebar is found to be 1.8 times but that of CRS rebar. A. C Impedance used for EC showed that epoxy coating is harmed and affected because of chloride attack. Initial quantitative study from this research gives clear interpretation of rust production which can be utilized in fragility of the structure.
Imitation model for keystroke dynamics base on state context representation
Authors: Pashchenko Dmitry V. , Martyshkin Alexey I. , Trokoz Dmitry A. , Balzannikova Elena A. 
Published: December 2020

Abstract
This paper describes different methods of keystroke dynamics. As part of a study on the development of methods for the dynamic analysis of keystroke dynamics, a method is proposed for representing the process of typing on the keyboard in the form of a successive change of states. Based on states it is proposed to define certain sequences called the state context as feature of a biometric image.
Based on this representation, an imitation model of keystroke dynamics was developed, which allows replacing the physical source of biometric data for the purpose of testing and debugging the identification system of keystroke dynamics
Frequency Analysis of Hydraulic Modeling As A Way to Forecast Flooding on the Allala River
Authors: Abdennour Kastali , Ayoub Zeroual , Lyudmila Kravchenko , Anna Khadzhidi , BoukhanefIssam  
Published: December 2020

Abstract
The article presents research on modeling the recurrence of emergency situations caused by flooding on the Allala river. It is proposed to predict the frequency of floods using the Saint-Venant equation for hydrodynamic modeling. The HEC RAS model was used to compare flood intensity with different water level positions in the river. The parameters of the water source were measured on a section of 8 km long. As a result of research, it was found that the existing coastal protection structures on the banks of the Allala river are insufficient to prevent an emergency flood situation at peak river flows.
Closed Loop Control of PV System Using Grey Wolf Optimization Algorithm under Partial Shading Condition
Authors: Jayaudhaya Dr. J. , Rajasekaran D. , Sumithra J. , Vinitha J. C. , Karkuzhali S. 
Published: December 2020

Abstract
Globally there is an increased awareness of the havoc that climate change and rising pollution are due to the over consumption of carbon riddled fossil fuels making the environment unfit for living. Thus, it is important to make discerning choices to incorporate more clean energy to produce power. Therefore, Renewable energy emerges as an obvious alternative. Renewable resources like solar and wind are now being utilized for power generation. The power output of a solar panel depends on the amount of irradiance of sunlight which is also called insolation. The main drawback in solar is the power output of a PV panel for a particular irradiance is not a linear function of voltage and the power is maximum only at a particular voltage called optimum voltage. When the solar panel is subjected to non-uniform irradiance which is referred to us partial shaded condition, then there will be multiple power peaks in the P-V characteristics and it becomes unable to meet the load requirements. The proposed system will help to overcome this drawback as it consists of two cascaded boost converters. A battery is connected in parallel to output of MPPT boost converter so that load power demand is met by parallel combination of PV panel and battery. The system is optimized for best performance using multi objective GWO optimization technique. Thus, maximum power is extracted even under partial shading condition and constant power is supplied.
Design and Modelling of Multi-Source Self-Charging Electric Bike
Authors: Thiyagesan M , Nair Akshaya R , Kumar Mr. Akshay , r Ms. Vanitha 
Published: December 2020

Abstract
The concept of electric vehicles is not new to us, the 1st documented electric vehicle was in the late 1890s, electric vehicles were far forgotten and suppressed for so long because of the domination of conventional vehicles in the commercial market. Conventional vehicles are fuelled by petroleum products which are non-renewable and not much environment friendly. We have reached a situation where we cannot depend on these fast depleting non-renewable sources of energy for better future. Hence, we are in need to develop and utilize the renewable sources of energy that are less/non-polluting and does not get depleted. Only by the late 1960s, people started to realize the need for electric vehicles. Electric vehicles are a better replacement or the conventional vehicles and are more efficient and Eco-friendlier.
Contigency Analysis in Multiline Distributed System using Dynamic Voltage Restorer
Authors: Antony Charles A , Joshua Jeyasekar D , Ramya G , Suresh P , Manimaran B 
Published: December 2020

Abstract
Power system security analysis involves a vital role in improving the system security and helps preventing the system collapse condition. This paper shows the conception and simulation of nine bus system with generator outage contingency. The objective of this work is to improve the real and reactive powers by employing DVR. Nine bus systems with generator outage contingency condition healthy, unhealthy without IDVR and unhealthy with DVR are simulated. The comparative study is presented to demonstrate the improvement in the power quality by adding DVR. The results indicate that real and reactive powers are improved by adding DVR.
Radio Frequency Identification (RFID) based ubiquitous health care data handling
Authors: Tamilvizhi T , Surendran R , Bommi R M 
Published: December 2020

Abstract
The Health care data is a most important and essential data compare with other types of data in the world. So the Health care Industry need to increase the data handling ability with a help of modern techniques. The Health care data handling must be improve with modern techniques like Cloud Computing and Radio Frequency Identification (RFID). The proposed framework merge the features of Cloud computing and RFID. The proposed framework provide the unique features to achieve the efficient data handling. RFID establish the data collection process from varies medical devices or centers. The cloud computing provide storage facility for Healthcare. The security feature is provided by the RFID for Healthcare data. Here Ubiquitous health care data accessibility represents the health care data can be access at anywhere, anytime, and from anything in Cloud computing. The proposed framework provide security in the form of the RFID tag to the patients and medical devices/centers. The RFID provides the security for the following data’s like patient records, doctors and nurse details caring the patient and hospital bed details. The proposed data handling produces the higher data accuracy, richer security and less energy consumption with help of Quality of Service factors.
A Contrast Adjusted Wavelet and Curvelet Transform Based Fusion of Breast Images
Authors: Vijayalakshmi G. , Shanthakumar M. , Muthukumar K. 
Published: December 2020

Abstract
Restoration is one of the image processing techniques to restore the distorted image. The distorted image can be any type like blurred image, noise added either while storing or capturing of the images. the traditional restoration techniques are geometric correction, different types of filters to remove the noises. Generally, the restoration is applied to the single image to retrives its information. In this, the restoration process is applied in the application of image fusion of medical images. the reason to chose the image fusion process is to improve its entropy. The medical images used in this paper is the mammogram and MRI-breast image. In this, the image fusion is performed with the help of wavelet and curvelet transform. The curvelet transform is applied to the restored mammogram image with the help of contrast adjusted top-hat filter process. The wavelet transform is applied to the MRI image because it has more volume of data to acquire important details. The fused image is evaluated with the help of entropy, mean standard deviation and variance. The fused image has efficient value as compared to its original image but it is higher than the DTCWT-fused image. To verify the quality of the proposed method, the psnr is evaluated to determine the noise present in the image. From the evaluation, the noise is less and entropy is higher in the proposed method. Hence, the contrast adjusted wavelet curvelet fusion is the best restoration and fusion process in the breast images.
Effective Timer Count Scheduling with Spectator Routing Using Stifle Restriction Algorithm in Manet
Authors: Anand R. P. Prem , Rajaram A. 
Published: December 2020

Abstract
Mobile nodes are provides unstable communication among mobile nodes, since nodes energy levels are abnormally changed. So, difficult to manage those node activities, packets are missed to collect by target node. Multi packet is broadcasted by sender node is not easy to manage frequently, since it does not have high capacity nodes. It reduces packet integrity rate, and network lifetime. In proposed algorithm is Timer count scheduling with spectator routing (TCSSR) scheme. Spectator monitors the packet transmission use of timer count. Clustering method is used to main stability for all mobile nodes available in coverage area. Stifle restriction algorithm is used to maintaining information about communication nodes, continuous sequence used to limiting sharing of the residence state of a communicate shields. Effective path selects for communication with the support of timer count report is analyzed. It enhances packet integrity rate, and network lifetime.
Application of hyperoperations for engineering practice
Authors: Rubtsov Konstantin A. , Konstantinov Igor S. , Lazarev Sergey A. , Polshchykov Konstantin A. , Kiselev Vladimir E. 
Published: December 2020

Abstract
This article presents some of the main points of the study for the practical application of various hyperoperations in engineering practice. The authors examined the use of hyperoperations in mathematical formalization of analytical solutions of branching algorithms, the use of new number formats for encoding information based on large numbers. The methods of applying hyperoperations considered by the authors allow them to be effectively used on modern microprocessor-based computers with a built-in mathematical coprocessor, which is an integral part of the processor core, which allows implementing algorithms based on operations of the order higher than “addition” and “subtraction”.
Design of 12T SRAM cell for low power dissipation
Authors: Suresh Kumar R , Ranjani K , Rasheedha A 
Published: December 2020

Abstract
The present semiconductor industry is developing quite quickly. Mobile and portable devices are becoming small for each day and moreover there is a rising demand for extended battery power. With these demands it is significant for researchers to emphasis on the leakage capacity in standby mode. For the exact communication, SRAM was intended with DSP, processor and applications with low power devices. The design engineer emphases mostly on the making of low energy consuming, higher bandwidth and large memory capacity. Memory is an essential part of majority of these systems as well asit is also reduced as the system size reduces. High processing architecture as well as low power is consequently a foremost concern. The robustness of static random access memory cells is other important factor. This paper proposed the architecture design of 12T SRAM for the reduction minimization of power leakages or power consumption during the sleep transistor. This supports in the minimization of the leakage in the CMOS transistor. Based on the parameters like write delay, read delay, write voltage, read voltage, and power consumption at various temperature are compared to the existing SRAM architecture of 6T, 7T and 8T, we acquire reduced power consumption in the proposed 12T SRAM architecture..
Tuning electro-mechanical properties of EAP-based haptic actuators by adjusting layer thickness and number of stacked layers—a comparison
Authors: Stubning Tobias , Denes Istvan , Gerhard Reimund 
Published: December 2020

Abstract
In our fast-changing world, human-machine interfaces (HMIs) are of ever-increasing importance. Among the most ubiquitous examples are touchscreens that most people are familiar with from their smartphones. The quality of such an HMI can be improved by adding haptic feedback—an imitation of using mechanical buttons—to the touchscreen. Thin-film actuators on the basis of electro-mechanically active polymers (EAPs), with the electroactive material sandwiched between two compliant electrodes, offer a promising technology for haptic surfaces. In thin-film technology, the thickness and the number of stacked layers of the electroactive dielectric are key parameters for tuning a system. Therefore, we have experimentally investigated the influence of the thickness of a single EAP layer on the electrical and the electro-mechanical performance of the transducer. In order to achieve high electro-mechanical actuator outputs, we have employed relaxor-ferroelectric ter-fluoropolymers that can be screen-printed. By means of a model-based approach, we have also directly compared single- and multi-layer actuators, thus providing guidelines for optimized transducer configurations with respect to the system requirements of haptic applications for which the operation frequency is of particular importance.
From Litigation to Rights: The Case of the European Court of Human Rights
Authors: Haglund Jillienne , Welch Ryan M 
Published: December 2020

Abstract
Do regional human rights courts influence respect for rights? Beyond providing remedy for individual human rights abuse, case outcomes help frame potential social mobilization by setting standards and raising the rights consciousness of civil society actors. The expectation of mobilization can increase the government’s costs of flouting the court’s rulings. We argue that an enabling domestic environment characterized by two features increases government expectation of mobilization following regional court litigation. First, a robust civil society creates strong horizontal ties between potential mobilizing groups. Second, a national human rights institution (NHRI) creates vertical ties that both transfer information down from the court to civil society; and transfer demands up from civil society to political elites in position to make stronger human rights policy. Using data for all Council of Europe countries from 1980 to 2012, we find European Court of Human Rights litigation associated with higher respect for rights in an enabling domestic environment characterized by strong civil society and the presence of a NHRI.
The FDA MyStudies app: a reusable platform for distributed clinical trials and real-world evidence studies
Authors: Wyner Zachary , Dublin Sascha , Chambers Christina , Deval Shyam , Herzig-Marx Chayim , Rao Shanthala , Rauch Adam , Reynolds Juliane , Brown Jeffrey S , Martin David 
Published: December 2020

Abstract
We developed a mobile application and secure patient data storage platform, FDA MyStudies, to address privacy, engagement, and extensibility challenges in mobile clinical research. The system extends the capabilities of the mobile frameworks Apple ResearchKit and ResearchStack through an intuitive front-end application and secure storage environment that can support health research studies. The platform supports single or multisite studies via role-based access and can be implemented within highly secure data environments. As a proof-of-concept, pregnant women participated in a descriptive study via the app in which data not routinely captured in electronic health records (EHR) were collected and linked with existing patient data to provide a more wholistic view of the patient and illustrate how patient data combined with EHR data could be used to support public health research.