bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of a remote tending system for analog broadcast transmitters
Authors: Mappatao Gerino , Zebedia Bautista Isaiah Mari , Kevin Orsos Marc , Aldrine Ribo Mark , Castillo Joseph 
Published: March 2020

<span>Whenever a broadcast transmitter is on-air, it is required to be tended by licensed broadcast technicians. Technicians periodically monitor the transmitter performance, record the supply voltage and current at the last stage of the power amplifier and keeps a copy for at least two years. Also recorded are the times the transmitter is turned ON and OFF as well as the times the transmitter shuts down and returns back to air. This paper proposes a system to remotely tend analog transmitters in one central monitoring station. The remote tending of several transmitters in one location is made possible through internet connection. However, the challenge in the proposed system is in the gathering of transmitter data. A prototype of the system was constructed and tested in an FM broadcast transmitter. Test results on the prototype performance show that the proposed system can effectively be used to remotely monitor, record data and control the status of analog broadcast transmitters. The primary feature of the proposed system of monitoring several transmitters in one location will bring cost effective advantages to the broadcast operators. </span>
Modified brute force algorithm to solve the closest pair of points problem based on dynamic warping
Authors: Dellosa Rhowel M. , Fajardo Arnel C , Medina Ruji P. 
Published: March 2020

<span>This paper introduces an algorithm to solve the closest pair of points problem in a 2D plane based on dynamic warping. The algorithm computes all the distances between the set of points P(x, y) and a reference point R(i, j), records all the result in a grid and finally determines the minimum distance using schematic steps. Results show that the algorithm of finding the closest pair of points has achieved less number of comparisons in determining the closest pair of points compared with the brute force and divide-and-conquer methods of the closest pair of points. </span>
Prioritization of network transformers in electrical distribution system by considering social welfare index
Authors: Krishna A. Prudhvi , Varma P. Srinivasa , Prakash R. B. R , Babu V. Kiran 
Published: March 2020

<span lang="EN-US">To supply a meshed distribution system, network transformers are required. When few transformers are not in service, they must be repaired or replaced. A method is proposed for prioritizing the transformers considering the critical loads. Repair or replacement of transformers can be done by giving priority based on risk reduction. By addressing the possibility of network collapse due to failure of the feeder and impacted customers, risk can be predicted where the loads are extremely used at feeders section, network transformers and secondary mains. To select the transformer that needs to be replaced quickly and economically, an algorithm is proposed and it was tested on IEEE test system using GridLAB-D, MATLAB softwares. An index is proposed to give priority to emergency needs like hospitals and water pumping stations. Replacement or repair can be done by prioritizing network transformers incorporating social welfare index. </span>
Cloud computing adoption reference model
Authors: Wan Mohd Isa Wan Abdul Rahim , Hakim Suhaimi Ahmad Iqbal , Noordin Nurulhuda , Fathiyah Harun Afdallyna , Ismail Juhaida , Awang Teh Rosshidayu 
Published: March 2020

<span>This paper presents a study to conceptualize a cloud computing adoption reference model. The case study on the cloud computing adoption was done in one local public university in Malaysia. The case study was conducted to understand in-depth and real context phenomenon by investigating the influencing factors of cloud computing adoption. The main objective of this study is to design a cloud computing adoption reference model. This study applied Technology-Organizational-Environmental (TOE) Framework by Tornatzky &amp; Fleischer and Diffusion of Innovation by Rogers as the theoretical background of the Cloud Computing Adoption Reference. Ten interviews were conducted with key informants. The theme pattern analysis of data were done by using qualitative computer programs, Atlas.ti. The findings are shown in summarize patterns that supports the conceptualization of cloud computing adoption reference model. Future work include the adaption of cloud computing adoption reference model specifically for the niche area of mobile computing.</span>
Projective synchronization for a cass of 6-D hyperchaotic lorenz system
Authors: Al-Obeidi Ahmed S. , AL-Azzawi Saad Fawzi 
Published: March 2020

This paper is concerned with the projective synchronization problem for a class of 6-D nonlinear dynamical system which is called hyperchaotic Lorenz system when the parameters of this system are unknown. Based on scaling factor which belong to above strategy, four controller are proposed to achieve projective synchronization between two identical systems via using Lyapunov's direct method and nonlinear control strategy. These scaling factor taken the values , and 2 for each control respectively. A numerical simulations are used to demonstrate the efficiency of the proposed controller.
Heuristic based model for groceries shopping navigator
Authors: Bin Peeyee Muhammad Wardi , Abdul-Rahman Shuzlina , Abdul Hamid Nurzeatul Hamimah , Zaki Zakaria Mohd 
Published: March 2020

This paper presents a heuristic based model for groceries shopping navigator that attempts to improve the navigation problem that usually face by customers while doing their shopping. A system known as Shopping Navigator or shortly SHoNa was developed to give the optimal sequence of shelves to be visited by the customer and the total estimated shopping time so that the user can plan their shopping task earlier. Genetic algorithm was employed and implemented in a web-based platform that is compatible with other devices such as smartphones and tablets. SHoNA can minimize the shopping time by identifying the most optimal order of shelves inside the supermarket that needs to be visited by the customer. A series of experimental was performed in producing the optimum model. Our findings showed that the combination of order one crossover and inverse mutation produced a better optimal performance, which is the minimum total amount of groceries shopping time. SHoNA can be further enhanced with visualization features for a better shopping experience.
Time performance analysis of advanced encryption standard and data encryption standard in data security transaction
Authors: Kasiran Zolidah , Farah Ali Hikma , Mohamed Noor Noorhayati 
Published: March 2020

The advancement of the data communication technologies has increased the traffic of data exchange over the internet and at the same time created the opportunity of data attack by various party. This paper present Time Performance Analysis Of Advanced Encryption Standard And Data Encryption Standard in Data Security Transaction<strong>. </strong>In this study we proposed an AES algorithm with different key size, and different file format. Our aim is to safely to transfer the file for using the AES algorithm. Proposed algorithm has done by analyzing the different time taken for both AES and DES, experiments were done by three different file format which were text, image, and voice. Each file format type was tested with five different file sizes. The result of each experiments were analysed and it was confirmed that the AES algorithm have better performance in term of time taken as compared to DES.
A leakage current estimation based on thermal image of polymer insulator
Authors: Darwison Darwison , Arief Syukri , Abral Hairul , Hazmi Ariadi , H. Ahmad M. , Putra Waldi Eka , Fernandez Rudy 
Published: March 2020

Polymer insulators tend to fail because of the climatic and environmental conditions. The failure occurs when the surface of insulator is contaminated by sea salt or cement dust which lead to partial discharge (PD). Leakage currents will increase by PD that causes deterioration of insulation. To predict the insulation failures, an adaptive neurofuzzy inference system (ANFIS) method using initial color detection processes are proposed to estimate the leakage currents based on the polymer insulator thermal images (infrared signature). In this study, the sodium chloride and kaolin are used as pollutants of the polymer insulator according to IEC 60507 standards. Then, the insulator is tested in the laboratory using AC high voltage applied at 18 kV where the temperature detection is controlled at 26° C and 70% RH (relative humidity). The percentage of colors (Red, Yellow, and Blue) from the thermal image is measured using the color detection method. Correspond to the color percentage, the ANFIS method predicts leakage currents from polymer insulators. Furthermore, this system interprets measured data from insulators that need to be categorized as Safe, Need Maintenance or Harmful. The final application of the system can be a non-contact tool to predict the polymer insulators used by technicians in the field.
LQR control of interleaved double dual boost converter for electrical vehicles and renewable energy conversion
Authors: V. Siva Kumar J. S. , Mallikarjunarao P. 
Published: March 2020

<p>The automobile industry is one of the major industries that are having its new innovations at a great pace according to the requirements of the day-to-day life. Due to the usage of conventional vehicles on a large scale which usually use petroleum products as fuel, is leading to a vast environmental effect, mainly due to the emission of greenhouse gases. So in order to reduce the ill effects of the greenhouse gas emissions great efforts are being put in manufacturing of electrical vehicles. Among the currently available greenhouse technologies the fuel cell provides high energy density in spite of its expenses. So, in this aspect a required mechanism has to be adopted to make it energy efficient and affordable. In order to overcome the drawback of fuel cell i.e. low output voltage, the boost converters are to be used and to be more precise Non-isolated Interleaved Double Dual Boost (IDDB) converters are recommended which makes it efficient and also the reduction of overall vehicle weight can be achieved. The LQR control technique is applied in this work to make the transient response of the fuel cell powered IDDB converter for various load conditions effective. The verification of results is done with simulation techniques using MATLAB/Simulink.</p>
3D modeling of multimode and single mode fiber
Authors: Kassim Murizah , Zaid Ahmad Syahir Arif Mohd , Idris Azlina , Shahbudin Shahrani , Mohamad Roslina , Yahaya Cik Ku Haroswati Che Ku 
Published: March 2020

<span>This paper presents a design of 3D modeling of Multimode and Single Mode Fiber using SolidWorks. Fiber technology is essential that presents optical fiber is the fastest optical cable laid by Internet Service Providers in network communication. The current design of both fibers has less detail animation on technical specifications of light propagations and cladding. Thus, characterization difficulties occur between this two fiber optics cables. It also has less promotion in media publications such as 3D model design as guidance to users. This paper presents details on 3D modeling of multimode mode and single mode fiber specifications held in the industry market. A 3D design with SolidWorks and comparison of both fiber characteristics are presented. Based on the 3D designed model, users are analyzed on their perspective and searching information which benefits telecommunication’s company. Technical calculations like core-cladding diameter ratio in microns are animated. The propagation of light in 3D single mode and multimode fiber is simulated using SolidWorks animator that presents it real fiber conditions. Result presents 10 most country searching used of both fiber cables and the difference in users search for both cables. A number of user’s search presents 3% more of multimode than single mode fiber search cases. This research is significant in presenting an animator of single and multimode fiber to users of network infrastructure development especially network developers and Telecommunications Company which can present it lively with animator transitions.</span>
Modeling collaborative practical work processes in an E-learning context of engineering electric education
Authors: Ouatik Fahd , Raoufi Mustapha , El Mohadab Mohamed , Ouatik Farouk , Bouikhalene Belaid , Skouri Mohammed 
Published: March 2020

<p>This work deals with the modeling the processes of the collaboration in practical work of electronics in a context of e-learning and the remote laboratory which is a new technology allows students to manipulate the practical experience the electronics by controlling all equipments and instruments of a laboratory via the web without moving to t laboratory. That is for to solve the problems of overcrowding students in universities and the restriction of time and places and the lack of some instrument in laboratory. Even this new project will allow the sharing all instruments and equipments between universities in the world for to have a cooperation in scientific learning. In this work we are interested to modeling the processes of collaborative electronics practical work, whose actors are : tutor, member, coordinator and the secretary and collaborative tools. Two models have been developed: a tutor-student model showing the activities of the learner and tutor, and moderating-member-secretary model that focuses more specifically on the roles of the moderator (coordinator) and the secretary (reporter). This modelling has made it possible to better understand the processes considered and to detect the various problems that may arise during an online particle work collaborative process.</p>
Perceived Stress and Depressive Symptoms as Predictors of Decisional Conflict in Dyads Considering a Left Ventricular Assist Device
Authors: McIlvennan Colleen K. , Matlock Daniel D. , Allen Larry A. , Thompson Jocelyn S. , Ranby Krista W. , Sannes Timothy S. 
Published: March 2020

Background:
The decision to pursue a left ventricular assist device (LVAD) commits loved ones to major caregiving responsibilities and, often, medical decision-making. How emotional domains overlap within patients and their caregivers and contribute to conflict around the decision to pursue LVAD remains largely unexplored.

Methods and Results:

The associations within and between individuals in patient-caregiver dyads considering LVAD were estimated in a specific type of structural equation model known as the Actor-Partner Interdependence Model. This model tested whether each person’s depression and stress predicted their own decisional conflict (actor effects), as well as their partner’s decisional conflict (partner effects). At the time of study enrollment when a formal LVAD evaluation was initiated, 162 patient-caregiver dyads completed assessments of decisional conflict using the Decisional Conflict Scale, depressive symptoms using the Patient Health Questionnaire-2, and stress using the Perceived Stress Scale. Across both models, decisional conflict was significantly correlated within patient-caregiver dyads (β=0.47 and 0.44, for depression and perceived stress models, respectively,
P
<0.001). Greater perceived stress in both the patient (β=0.18;
P<
0.05) and caregiver (β=0.28;
P<
0.001) was significantly related to greater decisional conflict (both actor effects). Greater patient depressive symptoms were related to greater patient decisional conflict (β=0.16;
P<
0.05), whereas caregiver depression symptoms was not related to their own decisional conflict (β=0.07;
P
=0.37). There were no partner effects identified between decisional conflict and perceived stress or depressive symptoms.

Conclusions:
Patient and caregiver conflict over the decision to pursue an LVAD was highly correlated in this sample, with greater perceived stress significantly predicting greater decisional conflict in both patients and caregivers. Depressive symptoms in patients also predicted greater patient decisional conflict. No partner effects were identified in predicting decisional conflict. These results contribute to a larger body of work acknowledging the importance of patient-caregiver well-being in serious illness.

Registration:

URL:
https://www.clinicaltrials.gov
; Unique identifier: NCT02344576.
Complex Meteorology over a Complex Mining Facility: Assessment of Topography, Land Use, and Grid Spacing Modifications in WRF
Authors: Nahian Md. Rafsan , Nazem Amir , Nambiar Manoj K. , Byerlay Ryan , Mahmud Shohel , Seguin Alison M. , Robe Françoise R. , Ravenhill James , Aliabadi Amir A. 
Published: March 2020

AbstractThe performance of the Weather Research and Forecasting (WRF) Model is evaluated in predicting the meteorological conditions over a complex open-pit mining facility in northern Canada in support of more accurate operational reporting of area-fugitive greenhouse gas emission fluxes from such facilities. WRF is studied in a series of sensitivity tests by varying topography, land use, and horizontal and vertical grid spacings to arrive at optimum configurations for reducing modeling biases in comparison with field meteorological observations. Overall, WRF shows a better performance when accounting for the mine topography and modified land use. As a result, the model biases reduce from 1.10 to 0.08 m s−1, from 1.04 to 0.50 m s−1, from 0.98 to 0.32 K, and from 45.7 to 17.3 W m−2, for near-surface wind speed, boundary layer wind speed, near-surface potential temperature, and turbulent sensible heat flux, respectively. Refining the model horizontal and vertical grid spacings results in bias reductions from 3.31 to 0.08 and from 0.80 to −0.11 m s−1 for near-surface and boundary layer wind speeds, respectively. The simulation results also agree with previous observations of meteorological effects on enclosed Earth depressions, characterized by formation of a cool pool of air, reduced wind speeds, and horizontal wind circulations at the bottom of the depression under thermally stable conditions. The results suggest that such configurations for WRF are necessary to arrive at more accurate meteorological predictions over complex open-pit mining terrains with similar features.
Atmospheric Boundary Layer Turbulence in the Presence of Swell: Turbulent Kinetic Energy Budget, Monin–Obukhov Similarity Theory, and Inertial Dissipation Method
Authors: Zou Zhongshui , Li Shuiqing , Huang Jian , Li Peiliang , Song Jinbao , Zhang Jun A. , Wan Zhanhong 
Published: March 2020

AbstractTurbulence over the mobile ocean surface has distinct properties compared to turbulence over land. Thus, findings that are based on the turbulent kinetic energy (TKE) budget and Monin–Obukhov similarity theory (MOST) over land may not be applicable to conditions over ocean partly because of the existence of a wave boundary layer (the lower part of atmospheric boundary layer including effects of surface waves; we used the term “WBL” in this article for convenience), where the total stress can be separated into turbulent stress and wave coherent stress. Here the turbulent stress is defined as the stress generated by wind shear and buoyancy, while the wave coherent stress accounts for the momentum transfer between ocean waves and atmosphere. In this study, applicability of the turbulent kinetic energy (TKE) budget and the inertial dissipation method (IDM) in the context of the MOST within the WBL are examined. It was found that turbulent transport terms in the TKE budget should not be neglected when calculating the total stress under swell conditions. This was confirmed by observations made on a fixed platform. The results also suggested that turbulent stress, rather than total stress, should be used when applying the MOST within the WBL. By combining the TKE budget and MOST, our study showed that the stress computed by the traditional IDM corresponds to the turbulent stress rather than the total stress. The swell wave coherent stress should be considered when applying the IDM to calculate the stress in the WBL.
Performance of the HWRF Rapid Intensification Analog Ensemble (HWRF RI-AnEn) during the 2017 and 2018 HFIP Real-Time Demonstrations
Authors: Lewis William E. , Rozoff Christopher , Alessandrini Stefano , Delle Monache Luca 
Published: March 2020

AbstractThe performance of the Hurricane Weather Research and Forecasting (HWRF) Model Rapid Intensification Analog Ensemble (RI-AnEn) is evaluated for real-time forecasts made during the National Oceanic and Atmospheric Administration (NOAA)’s 2018 Hurricane Forecast Improvement Program (HFIP) demonstration. Using a variety of assessment tools (Brier skill score, reliability diagrams, ROC curves, ROC skill scores), RI-AnEn is shown to perform competitively compared to both the deterministic HWRF and current operational probabilistic RI forecast aids. The assessment is extended to include forecasts from the 2017 HFIP demonstration and shows that RI-AnEn is the only model with significant RI forecast skill at all lead times in the Atlantic and eastern Pacific basins. Though RI-AnEn is overconfident in its RI forecasts, it is generally well calibrated for all lead times. Furthermore, significance testing indicates that for the 2017–18 Atlantic and eastern Pacific sample, RI-AnEn is more skillful than HWRF at all lead times and better than most of the other probabilistic guidance at 48 and 72 h. ROC curves reveal that RI-AnEn offers a good combination of sensitivity and specificity, performing comparably to SHIPS-RII at all lead times in both basins. With respect to specific high-impact cases from the 2018 Atlantic season, performance of RI-AnEn ranges from excellent (Hurricane Michael) to poor (Hurricane Florence). The multiyear assessment and results for two high-impact case studies from 2018 indicate that, while promising, RI-AnEn requires further work to refine its performance as well as to accurately situate its effectiveness relative to other RI forecasts aids.
US college students’ perceptions of social determinants of health, health equity and racial health disparities
Authors: Rich Rebecca , Paschal Angelia 
Published: March 2020

Objective: Healthy equity (HE) implies the highest possible standard of health for all people while giving special attention to the needs of those at greatest risk of poor health, based on social conditions. The social determinants of health (SDH) are conditions within the environment in which people live that shape their opportunity to attain good health. Despite efforts to promote HE and address SDH, there is limited research on college students’ perceptions of these concepts. The purpose of this study was to understand college students’ perceptions, awareness and education on HE and SDH with a specific focus on racial health disparities. Methods: A 28-item questionnaire was distributed electronically to a cross-sectional, campus-wide convenience sample of undergraduates at a large public university in the southeast USA. Results: While many students reported having knowledge or understanding about HE, SDH and related concepts, most had negative attitudes and beliefs about them. Students reported good understanding of these terms, but also believed that health disparities were due to individual behaviours. Conclusion: The contradiction in results show that while college students may think they have a good understanding of HE and SDH, their education on the topics could be improved. Study findings should encourage health education specialists to shift their focus from merely providing information to promoting the application of that knowledge. By so doing, students may be able to bridge the gap between understanding health equity and applying their knowledge in everyday life.