bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impacts of Addition Electrical Distribution Substation Allocation on Overloading Feeder
Authors: Hardiantono Damis , Mangera Paulus , Letsoin Yohanes , Ponadi Acep 
Published: May 2021

AbstractPercentage of maximum loading on distribution transformers according to the provisions does not exceed 80% of the capacity of the transformer. If the loading is more than 80%, it can disrupt the quality and continuity of the distribution of electric power to consumers. The analysis aimed to: determine the amount of voltage drop and power loss that occurs before the installation of the addition electrical distribution substation. The analysis done by taking a case study on existing distribution substation(named MRK 051), its have 4 (four) electrical line services (line A, line B, line C and line D) and addition electrical distribution substation (named: MRK 267) at Muli feeder in PT. PLN (The National Electricity Company) Region Merauke. Impact of addition electrical distribution substation was conducted by using analytical mathematic to compare two variable: drop voltage and power losses. The result revealed that: drop voltage at MRK 051 before addition electrical distribution substation allocation are valued meanly more than 10% and power losses are 1,22 kW (kilo-Watt) at line C. After addition electrical distribution substation allocation, drop voltage reduced to smaller than 10% and power loss reduced to 1,06 kW (kilo-Watt) at line C.
Mobile robot painted dashed lines as road markings
Authors: Wahyuni Sri , Budiarto Hairil , Jamilah Nafizatul 
Published: May 2021

Abstract
Painting road markings is one of the infrastructure works that can provide road markings on roads. The fuzzy method is used as a value to determine the midpoint of the width of the road and the robot is on the middle side of the road, then produces a velocity value on the robot that is maintained by the PID method. The result is that the robot can detect the sidewalk with an ultrasonic sensor on the difference of the right sensor error 0.2 cm and the left sensor 0.5 cm through comparison of detection by the sensor and the ruler. The robot can maintain speed and the output value produced by fuzzy speed is 30, then used as input by the PID method with constant values Kp = 2.5, Ki = 0, and Kd = 0.8. The process of painting using a roll model paint tool produces a length of painting 29-31 cm and a long line breaking range of 25-27 cm with a white line width of 8.5-9 cm.
Water Treatment Installation Network Design In Kali Veda Housing - Merauke
Authors: Paresa J , Utary C , Riadi MS 
Published: May 2021

Abstract
The rapid population growth that makes Merauke Regency need to be anticipated, especially in the amount of waste that can damage infrastructure such as roads, bridges, drainage, good health. To find out the dimensions of a wastewater installation by considering the capacity of the house needed from a house in the planning location. The research method used is the calculation, calculation and design According to the population to Obtain the population, the dimensions of construction of the WWTP and the design results According to the population. The results of the study of wastewater in the residential area of Kali Veda in Merauke vary greatly, ranging from floating in light gray, brown to black, starting from the smell of waste water (replace). The amount of wastewater is determined to be 60-80%. The value of community sanitation in the score is not good Because The ideal average value (Mi) is <37.25 with a value of 37.13%. Communal wastewater with a plan for 20 years. The population is 1,875 people, the criteria is 80 L / person / day. The average discharge is 42 liters / day / person, peak discharge is 75.6 liters / day / person. Processing capacity of 142.8 m3 in 2037. The design of the fat separator volume is 29.54 m3, the reservoir Leveling / wastewater design has a volume of 47.27 m3, the initial settling tank has a volume of 29.54 m3, settling volume 29, 54 m. Filter media is used as a medium for the plastic material, durable, has a large specific area, light and Also has a large volume of the cavity so that the deadlock media is very small. The pipe diameter of (black water) is 100 mm, material from PVC, Pipe diameter (gray water) is 100 mm, material from PVC. The diameter of the main pipe is 150 mm.
Hoist Tulangan Machine Maintenance Design Using Lean Maintenance Method (Case Studi Of Pt. Xyz)
Authors: Azhari Winan , adi Muhammad As’ , Dewi Alina Cynthia , Mahfud Halim 
Published: May 2021

Abstract
PT. XYZ is a company engaged in manufacturing concrete. There are many machines that used in this company, one of them is the Reinforcement Hoist machine. The Reinforcement Hoist machine is the engine with the highest downtime on line 8 during 2019 with 90 hours. The maintenance system that applied in this company is corrective maintenance. To implement a preventive maintenance system, researcher has used the Lean Maintenance method to find the MTTF value for each component and analyzing maintenance activities by Maintenance Value Stream Mapping (MVSM).The purpose of this research was to determine the critical components of the Reinforcement Hoist machine using FMEA, determine the reliability value of machine using RBD, determine preventive scheduling using selected distributions, and calculate maintenance efficiency using the Lean Maintenance method. From the results of the FMEA critical components are the Gearbox and End Carriage components. The Reliability Value of the Reinforcement Hoist engine is 85.69% with MTTF Gearbox component every 3 days and the End Carriage component every 6 days. The results of the Maintenance Efficiency of the Gearbox component are 49.59% and the End Carriage component is 61.35%.
The Behavior of Square Crash Box in Various Cross-Section Subjected yy High-Velocity Impact
Authors: Hardi Witono 
Published: May 2021

Abstract
The application of thin-walled tubes as energy-absorbing equipment has been recognized in various structural systems. The structure absorbs energy by converting kinetic energy to plastic deformation energy. This study will investigate the crash box with several square cross-section ratios about the ability to absorb impact energy.
The specimens are made of thin aluminum tubes, 2 mm of thick, 150 mm of length, and the cross-section is a square with 50 mm x 50 mm of size. The size of the square cross-sections is varied by maintaining a fixed circumference. The steel impactor crash into the axial direction specimen by 80 m / s of velocity. The elastic deformation, plastic deformation, and the reaction force occurred due to the collision. The simulation is completed by ANSYS WORKBENCH based on the finite element method.
The experiments obtained the maximum deformation, the reaction force, and plastic deformation energy. The square cross-section 50 mm × 50 mm (ratio = 1) the deformation is 49,442 mm. The greater the ratio, the greater the deformation occurs. The reaction force is also getting larger with a larger ratio. On the other hand, the energy absorbed from plastic deformation is getting smaller. It has been agreed that the cross-section ratio = 1 is the best performance of the impact energy absorption.
Heat Transfer Analysis of Recuperator for Waste Heat Recovery Purpose Using LMTD & NTU Method
Authors: Pandey Agraj , Dubey Kaushalendra Kumar 
Published: May 2021

Abstract
The dumped heat from captive industry like power generation plant, steel plant, refineries, etc. has tremendous potential for multiple energy effect like cooling, power and heating effect. The novel thermodynamic system has been invented for waste heat recovery (WHR) purpose as organic Rankine cycle, kalian thermal system, etc. The recuperator type heat exchanger (HEx) can support for WHR at category of medium and high-grade heat discharge. The design and operating parameters of recuperator is essential for complete development and its thermodynamic analysis. The proposed title of research deals with the heat transfer modeling using LMTD & NTU approach with the help of MATLAB R2017 analytical tool. And ANSYS is used for design work of mentioned heat exchanger. The major outcomes of this paper are maximizing the heat transfer rate, improve overall efficiency by operating parameters, and HEx effectiveness. The shell and tube material, diameter, number of turns of tubes.
Validation of Valve Coefficients Using Experimentation and Numerical Analysis
Authors: Kumar K. , Komble S. , Thorat S. , Korgaonkar P. , Bartakke V. , Sonje P. , Chavan O. , Kavire K. 
Published: May 2021

Abstract
Today’s demanding projects calls for a quality valve that is effective in controlling the flow in the closed conduit with optimum flow velocity and least energy losses in the system. Proper selection of valve requires information on maximum and minimum flows and the head loss for wide range of applications. Hence a comprehensive research study was carried out on an improvised tricentric butterfly valve of 100 mm NB over a conventional type of butterfly valve and globe valve at different percentages of openings to determine the flow performance characteristics at CWPRS, Pune. These studies highlight the improved performance of the tricentric butterfly valve over the conventional valve. The findings exhibit the exceptional performance and advantage of equal percentage flow control loop characteristics of a new tricentric valve over the conventional type S-shape flow performance characteristic curve and the linear characteristics of the globe valve. The tricentric valve has demonstrated in the opening range between 15° and 75° showing an equal percentage characteristic. The minimal pressure drop in these valves, causes significant energy savings over a broad range of control applications like water distribution systems, power generation, refineries, chemical, and desalination. The validation by experimental data with CFD is obtained with reasonable near-optimum results for valve coefficients.
Development of a cost-effectiveness model for a Mixed Municipal Waste Incinerators for Waste-to-energy (WtE) in small town
Authors: Gotal Dmitrović L , Čerepinko D 
Published: May 2021

Abstract
Waste-to-energy (WtE) or energy-from-waste (EfW) is the process of generating electricity and/or heat from the treatment of waste. Most WtE processes generate electricity and/or heat directly through waste combustion. According to the waste management hierarchy this method is better than disposal but worse than recycling. Many large cities use this method because it reduces the waste problems. In this paper, a cost-effectiveness model for Mixed Municipal Waste Incinerators is developed for a town, dealing with waste management methods problems for decades. Model development begins with the development of a cause-and-effect model, better known as the Ishikawa diagram. The paper develops mathematical dependences for: the dependence of specific investments on the capacity; the dependence of investment price on the capacity; the dependence of investment price on the capacity; the dependence of operating and maintenance costs on the capacity and the dependence of total plant efficiency on the capacity.
A combination of water hyacinth (Eichhornia crassipes) and coffee grounds as a growth substrate for use in arid areas
Authors: Le Quang Huu , Nguyen Huong Thi , Nguyen Au Hai 
Published: May 2021

Abstract
There is a strict requirement to reduce the environmental impact of the water hyacinth and coffee grounds and an urgency to find solutions to boost farming in arid regions. In this experiment, growth substrates containing different ratios of water hyacinth and coffee grounds were used to support potted flower growth to evaluate their effectiveness as soil replacements. Two substrates were prepared by the combination of water hyacinth and coffee grounds ratios of 50:50 and 70:30, and then their physicochemical properties were measured. The growth, biomass production, and micro and macroscopic nutrient uptake of cockscomb flower (Celosia argentea var. cristata) were also determined. The findings suggest that the addition of organic raw materials improved phytonutrients and increased substrate pH and electrical conductivity (EC) of growing medium. The experimental growth substrates did not negatively affect plant growth. Overall, the results have shown that the application of water hyacinth and coffee grounds in growth substrates reduces their negative impact on the environment and increases the amount of arable land in arid, water-scarce areas with poor soil quality.
Estimating the flexural strength of concrete using compressive strength as input value in a deep learning model
Authors: Guzmán-Torres José A. , Domínguez-Mota Francisco J. , Alonso-Guzmán Elia M. 
Published: May 2021

Abstract
The flexural strength is a critical parameter for designing many concrete structures such as rigid pavements, beams, and bridges. The standard test for concrete is the compressive strength due to its ease of implementation. There are many proposed methods for estimating flexural strength values with enough accuracy, although it is necessary to enhance the accuracy for this estimation, and this research suggests the use of artificial intelligence methods to accomplish this goal. Artificial Intelligence has been one of the most efficient approaches for estimating material parameters because of its efficient performance. This research presents the development of a data-driven Deep Neural Network for predicting the flexural strength in concrete based on just the compressive strength test. The proposed model analyses a concrete mixture with starch and a fluidizer. The model employs a Rectified Linear Unit function and a Sigmoid function in its architecture as activation functions and a considerable perceptron’s number. Results from the analysis show an excellent accuracy of over 90%, which is remarkable. This approach showed satisfactory performance in flexural strength prediction for the analysed concrete mixture.
Shifts in hydroclimatology of US megaregions in response to climate change
Authors: Heidari Hadi , Arabi Mazdak , Warziniack Travis , Kao Shih-Chieh 
Published: May 2021

Abstract
Most of the population and economic growth in the United States occurs in megaregions as the clustered metropolitan areas, whereas climate change may amplify negative impacts on water and natural resources. This study assesses shifts in regional hydroclimatology of fourteen US megaregions in response to climate change over the 21st century. Hydroclimatic projections were simulated using the Variable Infiltration Capacity (VIC) model driven by three downscaled climate models from the Multivariate Adaptive Constructed Analogs (MACA) dataset to cover driest to wettest future conditions in the conterminous United States (CONUS). Shifts in the regional hydroclimatolgy and basin characteristics of US megaregions were represented as a combination of changes in the aridity and evaporative indices using the Budyko framework and Fu’s equation. Changes in the climate types of US megaregions were estimated using the Fine Gaussian Support Vector Machine (SVM) method. The results indicate that Los Angeles, San Diego, and San Francisco are more likely to experience less arid conditions with some shifts from Continental to Temperate climate type while the hydroclimatology of Houston may become drier with some shifts from Temperate to Continental climate type. Additionally, water yield is likely to decrease in Seattle. Change in the hydroclimatology of Denver and Phoenix highly depends on the selected climate model. However, the basin characteristics of Phoenix have the highest sensitivity to climate change. Overall, the hydroclimatic conditions of Los Angeles, San Diego, Phoenix, Denver, and Houston have the highest sensitivity to climate change. Understanding of future shifts in hydroclimatology of megaregions can help decision-makers to attenuate negative consequences by implementing appropriate adaptation strategies, particularly in the water-scare megaregions.
Load estimation and vibration monitoring of scale model wind turbine blades through optical fiber sensors
Authors: Cazzulani Gabriele , Cinquemani Simone , Benedetti Lorenzo , Belloli Marco 
Published: May 2021

Abstract
Experimental activities on wind turbine models allow to speed up their design as well as the development of robust and effective control algorithms. Intending to have large information on load distribution on the blades, this work presents an experimental setup of a model wind turbine blade instrumented with two different types of optical fiber sensors (FOS). The first one is a traditional chain of Fiber Bragg Grating sensors, able to measure a large number of strain values; the second is based on Optical Backscatter Reflectometry (OBR), able to provide a continuous strain measurement. The experimental setup is calibrated to estimate load distribution along the blade and the two technologies are compared. The results of the experimental campaign suggest that optical fiber sensors could represent an interesting solution for real-time continuous load monitoring purposes.
Comparison of Next-Generation Assays for Fecal Calprotectin vs the PhiCal Assay
Authors: Lin Leo , Wyness Sara P , Jensen Ryan , Bird Joseph , Norgyal Tenzin , Jensen Gabrielle , Johnson Lisa M 
Published: May 2021

Abstract

Objectives
To compare the PhiCal assay (CALPRO), the first US Food and Drug Administration–approved assay for fecal calprotectin, to 4 next-generation assays.

Methods
Stool samples from 50 patients were selected, and relevant clinical information was collected. Comparisons were performed using the PhiCal, fCAL turbo (BÜHLMANN), LIAISON Calprotectin (DiaSorin), QUANTA Lite Calprotectin ELISA (Inova Diagnostics), and Calprotectin Chemiluminescence ELISA (ALPCO) assays.

Results
All 4 assays had acceptable agreement with PhiCal when qualitatively categorizing results. Within the PhiCal reportable range of 16 to 1,250 μg/g, the DiaSorin, Inova Diagnostics, and ALPCO assays had Spearman correlation coefficients of 0.98, 0.97, and 0.95 and positive biases of 17%, 20%, and 15%, respectively. The BÜHLMANN assay ran approximately 2-fold higher than the PhiCal assay but had a correlation coefficient of 0.98, with similar result categorization.

Conclusions
Our results demonstrate good comparison between PhiCal and 4 next-generation assays. Laboratories performing fecal calprotectin assays may have compelling reasons to adopt next-generation fecal calprotectin testing, such as greater automation, a decreased number of replicates needed per test, and the use of stool-extraction devices. These benefits could decrease turnaround times and lower costs. Although the results of the assays correlated, they are not standardized. Laboratories adopting the newer assays will need to further investigate their performance through validation studies.
Deficits of hierarchical predictive coding in left spatial neglect
Authors: Doricchi Fabrizio , Pinto Mario , Pellegrino Michele , Marson Fabio , Aiello Marilena , Campana Serena , Tomaiuolo Francesco , Lasaponara Stefano 
Published: May 2021

Abstract
Right brain-damaged patients with unilateral spatial neglect fail to explore the left side of space. Recent EEG and clinical evidence suggests that neglect patients might suffer deficits in predictive coding, i.e. in identifying and exploiting probabilistic associations among sensory stimuli in the environment. To gain direct insights on this issue, we focussed on the hierarchical components of predictive coding. We recorded EEG responses evoked by central, left-side or right-side tones that were presented at the end of sequences of four central tones. Left-side and right-side deviant tones produce a pre-attentive Mismatch Negativity that reflects a lower-order prediction error for the ‘Local’ deviation of the tone at the end of the sequence. Higher-order prediction errors for the frequency of these deviations in the acoustic environment, i.e. ‘Global’ deviation, are marked by the P3 response. We show that when neglect patients are immersed in an acoustic environment characterized by frequent left-side deviant tones, they display no pre-attentive Mismatch Negativity both for left-side deviant tones and infrequent omissions of the last tone, while they have Mismatch Negativity for infrequent right-side deviant tones. In the same condition, neglect patients show no P300 response to ‘Global’ prediction errors for deviant tones, including those in the non-neglected right-side, and omissions. In contrast to this, when right-side deviant tones are predominant in the acoustic environment, neglect patients have pre-attentive Mismatch Negativity both for right-side deviant tones and infrequent omissions, while they display no Mismatch Negativity for infrequent left-side deviant tones. Most importantly, in the same condition neglect patients show enhanced P300 response to infrequent left-side deviant tones, notwithstanding that these tones evoked no pre-attentive Mismatch Negativity. This latter finding indicates that ‘Global’ predictions are independent of ‘Local’ error signals provided by the Mismatch Negativity. These results qualify deficits of predictive coding in the spatial neglect syndrome and show that neglect patients base their predictive behaviour only on statistical regularities that are related to the frequent occurrence of sensory events on the right side of space.