bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Study of Inspection for Electrical Safety Systems Case Study Four Locations in Thailand
Authors: Charoenchit S , Thongchaisuratkrul C 
Published: May 2020

Abstract
This research presents study of inspection for electrical safety in electrical system. The four locations are observed. The objective of this research are to study the problems which may be occurred in electrical system and introduce the prevent ways. The four locations consist of 2 factories of paper and 2 animal food factories. For factory of paper, the total electrical load is 18,450 kVA which consists of 10 transformers and another 13,450 kVA which consists of 10 transformers. For the animal food 800 kVA, another is 1000 kVA which each location is a transformer. The inspected systems include transformer, main distribution board, ground and electrical wire systems. The check instruments are test oil maker, thermo scan, earth clamp tester, earth ground tester, infrared tester and outlet tester. The all data from test is analysed to compare among of four locations. For experimental results, it is of found that for transformer, the oil insulation transformer is lower than standard and silica gel is deteriorated and broken box, rubber shield and rubber gasket is broken and damage. For main distribution board, the ground value is lower than standard and the temperature of junction for breaker is high and more dust. For ground system, the ground value is lower than standard and broken. For wire system, the electrical is damaged because of heat and animal.
Analysis of Characteristics and Research on Processing Method of the High Viscosity DW-1 Colloid
Authors: Liu Xuyang , Xu Haibo , Wang Li , Xue Haiyang 
Published: May 2020

Abstract
All the variation of the viscosity characteristics of the high-viscosity DW-1 colloid at different temperatures are mainly analysed in the paper. Based on the experimental data, it concludes that the heat treatment method at 45-65°C can keep the colloid with good fluidity within 15 minutes. The inhibitory effect of organic solvents on solid particles in colloids is also studied. By adding an appropriate proportion of Butanone to the DW-1 colloid, a better colloid particle treatment effect is obtained and the colloid curing speed is increased by about 2 times within 24 hours. Finally, the treatment methods and effects of colloids before spraying are summarized.
Thermal Analysis of the Urban Canyon Based on the Variables: Orientation, Wind and Vehicular Anthropogenic Heat
Authors: Rosado Ruth María Grajeda , Guzmán Elia Mercedes Alonso , Molina Wilfrido Martínez , Arroyo Juan Alberto Bedolla , López Carlos Javier Esparza , García Hugo Luis Chávez 
Published: May 2020

Abstract
The city and its behavior in the transfer of heat, generates lines of research that study phenomena such as the Island of Urban Heat (ICU); Within its formation factors, the heat expelled by the vehicle is the least analyzed in the literature. Thanks to the Computational Fluid Dynamics (CFD) software and its validation with measurements in the field, data is acquired to examine the thermal behavior in an urban canyon based on the number of cars passing through it and the heat expelled by its engines, the speed of the wind and orientation. The results show that the temperature increases between 26% to 10% more, and the highest values are in the simulated cases with a north-south orientation, affecting the passer-by as to the energy efficiency of the buildings.
Mapping the LST (Land Surface Temperature) with Satellite Information and Software ArcGis
Authors: Rosado Ruth Maria Grajeda , Guzmán Elia Mercedes Alonso , Lopez Carlos Javier Esparza , Molina Wilfrido Martínez , García Hugo Luis Chávez , Yedra Eduardo Limón 
Published: May 2020

Abstract
This document describes the procedure to calculate the LST (Land Surface Temperature). The series of steps and equations is described using the thermal bands offered by the LandSat 8 satellite and the ArcGIS program tools. Although there are other methods and tools this procedure explicitly breaks down the use of information.
Prediction of the Fatigue Life of the AISI 1513 Carbon Steel Lower Arm Based on Strain-Life Approach
Authors: Husaini  , Putra Teuku Edisah , Rizky Muhammad Reza 
Published: May 2020

Abstract
The purpose of this study is to predict the fatigue life of a lower arm as a vehicle is driven on a straight and turn roads. The measurement of strain signals was carried out by attaching a strain gauge to the left lower arm and driving it with an acceleration of 30 km/h. According to the results, the lowest fatigue life was obtained just as the vehicle turned clockwise, which was 2.6E+6 cycles to failure. This value was lower by 123% and 1,862% than it was driven straight and counter-clockwise. Similarity, when the vehicle turned to the right, the lower arm on the left side received a higher strain, contributing to a shorter fatigue life.
A traction controller of a two-wheel mobile robot with feedforward compensator
Authors: Dahlan M , Sutapun A , Sangveraphunsiri V 
Published: May 2020

Abstract
A simple traction controller was derived from a model following control (MFC) using bilinear transformation. The controller was simplified by adjusting some dynamic parameters. The experiments were conducted to evaluate the validity of the controller by comparing with the classical PD controller. In the experiments, while the traction controller can prevent slippage, tracking control performance needed to be improved. The feedforward compensation was added to reduce the traction error. The experimentation using the simple controller with feedforward shows that the position error has been reduced while maintaining the traction force between floor and wheels.
Experimental Studies of the Corrosion Resistance for Q235 and Q235NHin the Outdoor High-voltage Disconnector
Authors: Zhou Z Q , Zhou Y T , Jhe J , Lu Y , Sun Q F , Mao H Y 
Published: May 2020

Abstract
Aiming at the corrosion failure question of the outdoor high-voltage isolation switch, accelerated corrosion testsusing 5% (mass fraction) NaCl salt spray for materials of Q235 and Q235NH were carried out. By means of the controlled trials method, samples were divided into two groups, and each group contains four specimens. After that, neutral-salt-spray corrosion tests with 60h, 100h, 130h, and 160h were conducted. Finally, the rust layer was observed by a microscope, and the corrosion rate was calculated according to the weight loss method. Experimental results indicated that the rust layer in Q235NH was more compact after being corroded. As a result, it provide more protection for the substrate.
Investigations with Various Inner Shielding Distance Tests for a Novel Coupler-based CPT System Applied for Electric Vehicles Using Electromagnetic Resonant Coupling and Aluminium Shielding Material
Authors: Duan J , Wang W 
Published: May 2020

Abstract
Contactless power transfer (CPT) technology development has been driven rapidly over the past decade by the world-wide trends towards new energy explorations, and numerous reports have been presented in this area. This paper focuses on passive magnetic shielding, which acts as one of the major factors mainly determining the overall CPT system performance when discussing electromagnetic field flux distribution and its real-time effects on magnetic resonant coupling. As a well performance conductive metallic material, aluminium has been adopted to be a passive shielding material in the designed novel H-shape coupler CPT system in this paper, in order to evaluate and find out the optimal inner shielding distance in between the coil and the inner shielding shell. Three inner shielding distances are applied and analyzed across a critical range of system operating frequency, by which the actual CPT system performance differences from perspectives of electromagnetics and power electronics have been illustrated and compared. As a result, it can be noticed that the 15-mm inner shielding gap CPT model is able to yield an optimal system performance with a maximum system efficiency, peak system output RMS power of over 36% and 22 kW, respectively, which also shows an optimal capability to address major concerns over electric vehicle contactless charging. Besides, along with the electromagnetic field parameters generated in the model, such as actual real-time values of flux linkage, magnetic flux density and field strength, it can be found that the 15-mm inner shielding gap prototype is able to achieve better overall magnetic field performance than 5-mm and 25-mm inner shielding distance CPT models.
Research and modeling of wrinkles and control of rectangular membrane structures with high-class modeling in on-orbit conditions
Authors: Kumar S , Upadhyay S H , Koryanov V V 
Published: May 2020

Abstract
In the previous paper, the authors described a mathematical model of the process, this paper is devoted to the issues of modeling and analysis. The effects of different parameters such as temperature gradients, membrane’s aspect ratio, pre-stress, thickness, anchor points, and elastic properties of the membrane and the multilayer on the characteristic wrinkling behavior (wavelength, size, critical load and location) have been examined. It is found that the critical buckling condition of the membrane is dependent on the compressibility, anchor points, aspect ratio and the thickness of the membrane, and it’s out of plane displacement depends on the magnitude of the applied in-plane tension. The number of wrinkles decreased with increasing the number of anchor points of the membrane. An effective active flatness control method is used to minimize the surface error (RMS error). Also, it is seen that the multilayer geometry helps in reducing the surface error of the membrane structure.
A wrinkling analysis and control of rectangular membrane structures with upscale modelling under on-orbit conditions
Authors: Kumar S , Upadhyay S H , Koryanov V V 
Published: May 2020

Abstract
This paper presents detailed analysis of a novel concept on the formation and evolution of wrinkle pattern on a multilayer shell-membrane under the action of mechanical and thermal-mechanical loading. The double scale Fourier series is used to deduce the wrinkling equation of membrane structure. In this paper discusses the theoretical aspects of this process and carried out part of the numerical calculations. In particular: wrinkling analysis of square membrane with corner tensile loading. It contains: schematic loading condition on square membrane, membrane with shell elements and experimental analysis of square membrane with tensile loading. Also held stress analysis. In the next paper, the authors will consider a detailed analysis of the research.
Structural and Random Vibration Analysis of LEDs Conductive Polymer Interconnections
Authors: Zulfiqar S , Saad AA , Chek MA Wan , Sharif MFM , Samsudin Z , Ali MYT 
Published: May 2020

Abstract
Many devices consist of electronic parts and can be operated in a certain vibration environment for some instant without undergoing failure. Interconnection or joint plays a very important role in electronic devices to connect various electrical and mechanical parts altogether. The main objective of this study is to investigate the effect of interconnection performance under vibration loading in terms of natural frequency, mode shapes and transfer function. Four different models of LEDs are built for pull strength and vibration tests. The structural analysis of these models are carried out by using universal testing machine. The dynamic responses of four build matrices under certain random frequency are observed by random vibration analysis. In structural analysis, the samples are subjected to vertical displacement loading while in random vibration analysis, the models run in a frequency range of 3 Hz to 500 Hz. It is observed that the structure of the adhesive joints affect the strength of interconnection between circuit pad and LED joints. Furthermore, FEA analysis is also carried out to determine the stresses at solder joint under vibration condition. The models are excited from natural frequency and good comparison of the experimental results and FEA analysis are observed.
Sound Absorption Characteristics of Sandwich Panel Made from Double Leaf Micro-perforated Panel And Natural Fiber
Authors: Rusli Meifal , Nanda Ronal Satria , Dahlan Hendery , Bur Mulyadi 
Published: May 2020

Abstract
One of sound-absorbent developed nowadays, micro-perforated panel (MPP), effectively reduce reflected acoustic energy after approach the panel based on a Helmholtz-type resonance absorber. Some MPPs modifications have been applied to increase its performance, like the application of double-leaf MPP. Furthermore, the implementation of sound absorption materials made of natural fibers recently has invited more attention to some researcher because it is biodegradable, environmentally friendly, and economical. In this paper, a sandwich panel made of double MPP and natural fiber as sound absorptive material is investigated. The MPPs are made of a transparent acrylic board 1.5 mm thickness, 0.8 mm hole’s diameter with five mm hole distance in front panel, and five mm in the backing panel. Two different types of natural fibers panel; pineapple leaf fiber and oil palm fiber from empty fruit bunches are used in this sandwich. a low-cost impedance tube with double channel microphone is used to measure the sound absorption coefficients. It is found that the sandwich model changes the sound absorption characteristics of MPP by shifting the maximum absorption coefficient into the lower frequency and raising the absorption coefficient of the double MPP following its natural fiber panel absorption coefficient. The total impedance of sandwich gives the effect of decreasing the frequency peak of the absorption, and higher resistance of the fiber panel will increase the absorption coefficient and broaden the frequency peak.
Investigation of Fatigue Failure Performance of Ankle Implant Mobile Bearing using Finite Element Method
Authors: Daud Rosdi , Jantan M Z H , Ayu H M , Shah A 
Published: May 2020

Abstract
The Fatigue of the mobile bearing component of ankle implant became one of the main causes of failure in ankle implant. This paper deal with the investigation of fatigue failure performance of mobile bearing for different gait cycles (normal, dorsiflexion and plantarflexion) using finite element method. The finite element analysis is one of the method to predict fatigue and identify the critical area that have highest contact stress on mobile bearing design of ankle implant. The three-dimensional solid modelling of STAR and BOX ankle implants are constructed using SolidWorks software. The finite element analyses are performed by using ANSYS software. The finite element model of the mobile bearing was analysed using static structural analysis approach. The most critical area on the mobile bearing of ankle implant was found on its middle bottom area. The obtained results also showed that the STAR mobile bearing has the higher life cycle than BOX before fatigue failure occurs. This finding is similar with experimental and clinical result done by previous researcher. Therefore, our Finite Element Model has potential to improve the mobile bearing at the designing stage to be better in future in term of fatigue failure resistance and has longer life span.
Effect of Femur Geometry on Hip Protectors Testing System
Authors: Yahaya S A , Ahmad Iqbal A A S , Ripin Z M , Ridzwan M I Z 
Published: May 2020

Abstract
There have been different types of simplified femoral geometry incorporated into test systems for testing the biomechanical effectiveness of hip protectors. However, the effect of the simplification of femoral geometry in simulated sideways impact experiment has not been reported. In this study, an actual femoral geometry was fabricated and examined along with a simplified femoral geometry in a surrogate hip arrangement to mimic the fracture-causing situation in a sideways fall. A pendulum impact testing machine was used to evaluate the impact force response of both the femoral geometries at various velocity and constant residual impact energy for both geometries. The result showed that the peak impact force varied only 9% between actual and simplified geometries after normalizing the weight for both femurs in testing without a hip protector. However, a higher distinction of the impact force responses of both femurs was observed when testing with a hip protector. This findings at this moment suggest that the femur geometry affects the performance of a testing system. Therefore, the simplified femur geometry may not accurately substitute for the actual femur geometry in comparison of the impact attenuation of a hip protector in a simulated sideways fall.
Numerical Study of the Flow-Induced Vibration During Tunnel Surging at the Intake Section of Chenderoh Dam
Authors: Mazlan AZA , Zawawi MH , Arbain A , Ghazali MHM , Satar MHA , Abas MA , Hassan NH , Radzi MRM 
Published: May 2020

Abstract
Chenderoh Dam that located in Malaysia is one of renewable energy power plant that beneficial to mankind. However, in some cases, the dam suffers from the vibration effect during the water spilling from upstream to downstream. This study focused on major part of the dam which is the intake section during the tunnel surging condition. A detail 3D model of the intake section was constructed and used in the prediction of flow-induced vibration response. The results of frequency domain response and operational defection shapes (ODS) from the effect of flow-induced vibration are compared with the natural frequencies and mode shapes of the dam. From the results, the transient vibration responses due to the flow of water occurred at the frequency of 8.63 Hz with the maximum deformation of 8.24 x 10−1 m, meanwhile, the modal analysis obtained at 2.76 Hz of natural frequency with deformation of 9.1 x 10−4 m. The deformation of ODS is high because of the water flow and tunnel surging condition. However, there is no resonance phenomenon occurred, yet a safety precaution must still be considered by the operator based on this result.
Kalahari skinks eavesdrop on sociable weavers to manage predation by pygmy falcons and expand their realized niche
Authors: Lowney Anthony M , Flower Tom P , Thomson Robert L 
Published: May 2020

Abstract
Eavesdropping on community members has immediate and clear benefits. However, little is known regarding its importance for the organization of cross-taxa community structure. Furthermore, the possibility that eavesdropping could allow species to coexist with a predator and access risky foraging habitat, thereby expanding their realized niche, has been little considered. Kalahari tree skinks (Trachylepis spilogaster) associate with sociable weaver (Philetairus socius) colonies as do African pygmy falcons (Polihierax semitorquatus), a predator of skinks and weavers. We undertook observational and experimental tests to determine if skinks eavesdrop on sociable weavers to mitigate any increase in predation threat that associating with weaver colonies may bring. Observations reveal that skinks use information from weavers to determine when predators are nearby; skinks were more active, more likely to forage in riskier habitats, and initiated flight from predators earlier in the presence of weavers compared with when weavers were absent. Playback of weaver alarm calls caused skinks to increase vigilance and flee, confirming that skinks eavesdrop on weavers. Furthermore, skinks at sociable weaver colonies were more likely to flee than skinks at noncolony trees, suggesting that learning is mechanistically important for eavesdropping behavior. Overall, it appears that eavesdropping allows skinks at colony trees to gain an early warning signal of potential predators, expand their realized niche, and join communities, whose predators may otherwise exclude them.
Is there a definite relationship between placental mTOR signaling and fetal growth?
Authors: Dong Jie , Shin Na , Chen Shuqiang , Lei Jun , Burd Irina , Wang Xiaohong 
Published: May 2020

Abstract
Fetal growth restriction and overgrowth are common obstetrical complications that result in adverse perinatal outcomes and long-term health risks later in life, including neurodevelopmental dysfunction and adult metabolic syndrome. The placenta plays a critical role in the nutrition transfer from mother to fetus and even exerts adaptive mechanism when the fetus is under poor developmental conditions. The mammalian/mechanistic target of rapamycin (mTOR) signaling serves as a critical hub of cell growth, survival, and metabolism in response to nutrients, growth factors, energy, and stress signals. Placental mTOR signaling regulates placental function, including oxygen and nutrient transport. Therefore, placental mTOR signaling is hypothesized to have a positive relationship with fetal growth. In this review, we summarize that most studies support the current evidence that there is connection between placental mTOR signaling and abnormal fetal growth; however, but more studies should be performed following a vigorous and unanimous method for assessment to determine placental mTOR activity.
Management of facial burns
Authors: Greenhalgh David G 
Published: May 2020

Abstract
Burns to the face affect a part of the body that cannot be hidden and thus exposes potentially major changes in appearance to society. Therefore, it is incumbent upon the caregiver to optimize healing and minimize scarring. The goal for partial-thickness burns is to have them heal within 2–3 weeks to minimize healing time. For full-thickness burns there needs to be strategies to optimize the outcomes for skin grafting and minimize scarring. The goal of this review is to discuss the best way to improve the outcomes of these devastating injuries.
Differential flora in the microenvironment of lung tumor and paired adjacent normal tissues
Authors: Mao Qixing , Ma Weidong , Wang Zhongqiu , Liang Yingkuan , Zhang Te , Yang Yao , Xia Wenjie , Jiang Feng , Hu Jianzhong , Xu Lin 
Published: May 2020

Abstract
Recent evidence demonstrates the existence of diversified microbiota in the lung. However, the effect of lung carcinogenesis on the flora in lung microenvironment has yet not been well investigated. In this study, we surveyed the microbial composition and diversity in lung tumor and paired adjacent normal tissues obtained from 55 lung cancer patients to test whether any specific tumor-associated microbial features in lung microenvironment can be identified. Compared with non-malignant adjacent tissues, the tumor samples showed significantly lower community richness (α diversity), but no significant difference in overall microbiome dissimilarity (β diversity). Strong intrasubject correlations were observed between tumor sample and its paired non-malignant adjacent tissues. In addition, correlation network analysis found more significant taxa–taxa correlations (adjusted q-value &lt; 0.05) in tumor microenvironment than non-malignant adjacent tissues. At taxa level, we found Propionibacterium genus were significantly reduced in tumor tissues compared with non-malignant adjacent tissues. In summary, the microbiota in tumor tissues showed the lower richness, higher taxa–taxa interaction, and reduction of potential pro-inflammatory microbial genera compared with non-malignant tissues, suggesting the potential link between the tumor microbiota and the altered tumor microenvironment for the further investigation.
Penicillin Allergy Evaluation Access: A National Survey
Authors: Mancini Christian M , Fu Xiaoqing , Zhang Yuqing , Kuper Kristi , Schulz Lucas T , Bhowmick Tanaya , Postelnick Michael , Lee Francesca , Walensky Rochelle P , Blumenthal Kimberly G 
Published: May 2020

Abstract
In a study of 121 hospitals from 38 US states, 44% had access to an allergist for inpatient consultations and 39% had access to inpatient penicillin skin testing, indicating that the majority of US hospitals lack sufficient resources to address inpatient penicillin allergies.