bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of Vibration Test System to Measure Human Biodynamic Responses to Hand-Transmitted Vibration (HTV)
Authors: Aizuddin A M , Jalil N A Abdul , Rezali K A Md , Ng Y G 
Published: August 2019

Abstract
Workers commonly experience hand-transmitted vibrations (HTV) especially in industries involving power tools. Vibration exposure will differ by individuals where prolonged and unmonitored exposure can lead to the development of symptoms known as hand arm vibration syndrome (HAVS). A deep understanding of human response to HTV is required to provide feasible solutions to lessen its adverse effects. Research has been extensively conducted on exploring the vibration transmission to the hand-arm system. However, there is limited study on the effects of handles mounted on a damping material or suspension systems. The objective of this study is to develop a vibration test system to measure the human biodynamic response to hand-transmitted vibration. Engineering design theory were used to formulate the essential design requirements of the system. The evaluation and selection of concepts were done. The design was modelled, and frequency analysis was performed using Computer-Aided Engineering (CAE) software. The frequency analysis results showed the first 10 modes in the frequency range of 1320 – 5088 Hz and therefore will not have resonance issues in the 25 – 1250 Hz frequency excitation range as per requirement. The prototype design was shown to comply with the product design specification and final detail design drawings were approved for fabrication. In conclusion, an instrumented handle with a modular expansion slot had been appropriately designed to measure human biodynamic responses due to hand-transmitted vibration.
Review on the Vibration Perception Threshold to Early Detect Diabetes Mellitus
Authors: Taufiq Zaliran M. , Md Rezali Khairil Anas , Guan Ng Yee , As’arry Azizan , Abdul Jalil Nawal Aswan 
Published: August 2019

Abstract
The total population of diabetic patients increases from 4.7 % to 8.5 % in the adult population worldwide in only three decades. In Malaysia, more than 3 million of total population have been inflicted with diabetes. Vibration Perception Threshold is a non-invasive technique that can measure loss of sensation due to diabetic peripheral neuropathy. The threshold mainly depends on the frequency of vibration, the area of contact, the applied force, and the location of measurement. This paper will review on the factors influencing the vibration perception threshold and recent studies on the use of VPT to detect diabetes.
Secondary recrystallization induced by composite precipitates in magnetostrictive Fe-Ga alloy thin sheet
Authors: He Zhenghua , Sha Yuhui , Gao Yongkuang , Chang Songtao , Lei Fan , Fu Quan , Zhang Fang , Zuo Liang 
Published: August 2019

Abstract
Secondary recrystallization of Goss ({110} < 001>) texture is successfully produced by using nanometer-sized composite inhibitor in primary cold rolled Fe81Ga19 alloy sheet. Nanometer-sized sulfides consisting of MnS and Cu2S are dispersedly precipitated during hot rolling and normalization as inhibitors for secondary recrystallization. Strong γ texture with peak at {111} < 112> and weak Goss texture distributed through the sheet thickness in primarily annealed sheets can provide favorable environment for the secondary recrystallization. The higher onset and finishing temperatures of secondary recrystallization confirm the stronger inhibition and driving force originated from the composite inhibitors. Centimeter-sized Goss grains and large magnetostriction coefficient are obtained by primary cold rolling methods without surface energy effect. The result indicates that complete secondary recrystallization in Fe-Ga alloy can be realized by precisely controlling inhibitor characteristic and primary recrystallization texture.
Effect of hot band annealing on texture and grain size distribution of primary recrystallization in grain-oriented silicon steel
Authors: Ko K J , Park J T 
Published: August 2019

Abstract
During final high-temperature annealing in grain-oriented silicon steel, a few Goss grains grow exclusively fast and consume the matrix grains, which are related to the quality of the final product. The optimization of texture and microstructure in primary recrystallization is crucial to achieve the sharp Goss texture in grain-oriented silicon steel. The driving force for this phenomenon is the reduction of grain boundary area, which can be decribed as a reduction in grain boundary energy. The distribution of grain boundary and its energy determined by texture and microstructure of primary recrystallization are very important data to understand the optimization point. The hot band annealing is known to be a prerequisite for the high quality product in grain-oriented silicon steel. It can affect the evolution of microstructure and texture in primary recrystallization. In this study, the influence of the hot band annealing temperature on the texture and grain size distribution in primary recrystallization was investigated in detail.
Influence of grain size before cold rolling on development of crystallographically equivalent main texture component in recrystallization texture of 3% Si-Fe
Authors: Imamura T , Hayakawa Y 
Published: August 2019

Abstract
3%Si-Fe sheet produced by high cold rolling reduction over 80% has strong {111}<112> recrystallization texture. This orientation has two crystallographically equivalent orientations such as (111)[1 -2 1] and (111)[-1 -1 2]. However, there are a few previous works in which these orientations are investigated separately. In the present study, the recrystallization behavior of the crystallographically equivalent orientations of {111}<112> was investigated using two samples with different grain sizes before cold rolling. Both recrystallized samples had strong {111}<112> component texture. The sample with a small grain size before cold rolling had almost the same fraction of each equivalent orientations, while the sample with a large grain size had substantially different fractions of each equivalent orientations. Spatial distribution of two crystallographically equivalent orientations in the sample with a small grain size before cold rolling was almost homogeneous, however that in the sample with a large grain size before cold rolling was inhomogeneous. It is considered that these differences are explained by the assumption that a certain large grain before cold rolling will generate only single crystallographically equivalent orientation after cold rolling and annealing.
Basal texture formation behavior of M1 magnesium alloy during high-temperature compression deformation
Authors: Park M , Kim K 
Published: August 2019

Abstract
Understanding the formation behavior of basal texture is important for improving formability. Many researchers found that deformation condition was an important factor in order to texture control on AZ system magnesium alloy. In case of M1 magnesium alloy has been investigated in texture formation resulting from grain size manipulation by precipitation, but there seems no studies on the texture development during high temperature on M1 magnesium alloy by deformation condition. In this study, microstructure evolution and texture formation behavior is investigated under various deformation conditions in M1 magnesium alloy. In order to make the same initial conditions, M1 magnesium ingot was rolled at 673K with a rolling reduction of 30%. Uniaxial compression test specimens were machined in such a way that the compression plane was parallel to the rolling plane, and subsequently annealed at 823 K for 1h. Uniaxial compression tests were carried out at 673K and 723K under a strain rate of 5.0x10−2s−1up to a strain of -1.0. EBSD measurement was performed for observation of crystal orientation distribution. As a result, occurrence of the dynamic recrystallization was confirmed. The position of maximum axis density of the texture and its intensity were varied depending on deformation conditions.
Microstructure and texture of a severely warm-rolled and annealed AlCoCrFeNi2.1 eutectic high entropy alloy
Authors: Reddy S R , Sunkari U , Lozinko A , Guo S , Bhattacharjee P P 
Published: August 2019

Abstract
The effect of warm-rolling and subsequent annealing on the evolution of microstructure and texture was systematically investigated in a lamellar (L12+B2) AlCoCrFeNi2.1 eutectic high entropy alloy (EHEA). The EHEA was warm-rolled at 400°C up to 90% reduction in thickness and annealed at different temperatures. Ultra-fine lamellar microstructure evolved after heavy deformation with the characteristic textures of the two phases. Annealing treatments resulted in the gradual development of an ultrafine micro-duplex structure with increasing annealing temperature, even though the alloy showed significant resistance to grain growth. The annealing process was featured by concomitant microstructural and textural changes.
The evaluation of irrigation water requirement under climate change phenomenon in the urban area (a literature study)
Authors: Rozita E , Sutjiningsih D 
Published: August 2019

Abstract
Irrigation is important for agricultural activities because it distributes water into irrigation area and provides water for crop growth. The appropriate and effective water allocation supports agricultural productivity. Generally, irrigation activities get water from rainfall and it is very depending on several climate variables for example temperature, humidity, duration of radiation and wind velocity. Several climatic variables are important for agriculture since they affect the evapotranspiration rate that it will determine irrigation water requirement rate. Therefore, irrigation water requirement is sensitive if climate change happened. In the other hand, decreasing of agriculture area as the agricultural land conversion gradually will reduce the irrigation service area particularly in the fast-growth area in development. So that, irrigation water requirement also will be reduced. Irrigation water requirement should be evaluated simultaneously in order that it can be allocated appropriately. This paper was written to develop an evaluation method for irrigation water requirement through analysis of climate change trend, agricultural land conversion and irrigation efficiency based on the literature review. The reviews result selected method i.e. Mann Kendall Test for climate change trend analysis, spatial analysis for agricultural land conversion and comparison of inflow and outflow for irrigation efficiency analysis.
Spatial pattern of drought disaster area and types of agriculture plant in Lebak Regency, Banten Province
Authors: Susilowati M H D , Wibowo A , Susiloningtyas D 
Published: August 2019

Abstract
Drought is a natural phenomenon that is one of the most frequent natural disasters in Indonesia. Significantly reduced water availability characterizes drought over a period occurring over a large area. Thus, drought occurs due to the deviation of weather conditions, that is lower rainfall than normal conditions that occur in a region. Lebak Regency is a dry area that has average monthly or annual rainfall below normal and most agricultural activities on dry land. The research objective is to analyze the drought and plant species in Lebak Regency, Banten Province. The method of analysis used in this study is spatial analysis (spatial analysis) and statistical analysis (Chi-Square). The results found, e.g. (1) The high drought areas concentrated in the northeast and southwest regions that are far from the center of Lebak Regency. (2) The types of crops are dominated by plantations, especially outside the Capital Region of the Regency. (3) The relationship between drought and crop type is insignificant at the real level of 0.05, which means that in high drought areas it is not always planted with certain types of crops. This research concluded that drought in Lebak Regency concentrated in the northern and southern part outside the capital city and the agriculture type dominated with the plantation.
Risk level of landslide disaster in Wonosobo
Authors: Saraswati Ratna , Harist M Chaidir , Putri Dian Nurhandayani , Afif Humam A , Wibowo Adi , Ash-Shidiq Iqbal Putu 
Published: August 2019

Abstract
Entering the rainy season can certainly cause various disasters, such as landslides. National Agency for Disaster Management (BNPB) noted since early 2017 to December 4, 2017 recorded as many as 577 incidents of landslides throughout Indonesia. Wonosobo is of the regency in Central Java that has occurred of Landslide. Based on Indonesia Disaster Information Data (DIBI) within 2017 until now in Wonosobo regency there are 9 landslide. By SMORPH modelling, found that the area of landslide potential with the highest grade in Wonosobo district of 17% area, and for sub-district and the sub-district with the highest potential landslide is Wadaslintang with the percentage of 13.85% area. Therefore, it is necessary to conduct research on risk level of landslide to reduce fatalities and material loss. To know how risk level, indicator used is landside potential area, vulnerability, and capacity. The output is risk level area of landside in Wonosobo, and for final results indicate that areas experiencing low risk levels are 7688,144 km2 or 8%, moderate 10111,89 km2 or 11%, and high 78123,15 km2 or 81%. Landslide risk distribution with high class are dominates in north, south, and west.
Assessment of loss due to flood hazard in Singkawang City (case study: flood in 2016 at Singkawang City)
Authors: Taris H , Tambunan M P , Marko K 
Published: August 2019

Abstract
Singkawang City is in the Province of West Kalimantan, which is located above an alluvial plain, that causing the city to be prone of flood. The last flood that occurred happened in 2016, which resulted in many flooded buildings and hundreds evacuated resident. This research purposes are to identify the hazard level of flooding and then proceed with the assessment of economic losses. The flood hazard levels are obtained by overlaying the flood characteristics parameters, i.e. frequency, duration, and height of the flood. The method for assessing the rate of the damage is done by purposive random sampling method with consider to the flood hazard level and building value. The result showed that from 84,96 ha of flooded areas, flood hazard level is dominated by low and medium hazard, with percentage of area 44,02% and 43,03%, and high classification with percentage of 12,95%. The loss assessment for this research shows that the total loss from the flood is Rp15.838.232.500 (1.150 million USD). There is a difference in distribution amount of losses, which is strongly affected by the category of building value and the level of flood hazard from the existence of the building.
Landslide susceptibility mapping using sinmap method in a small hilly area: case study in Cibanteng Village, West Java
Authors: Affandani A Y , Kusratmoko E 
Published: August 2019

Abstract
This paper presents the results of landslide susceptibility mapping in small hilly areas, Cibanteng village, Cianjur district, West Java. In this study. the physically-based model SINMAP (Stability Index Mapping) was applied in the GIS platform. The SINMAP model simulation requires data of physical properties of soil, such as cohesion value, internal friction angle, and soil hydrology to calculate the value of factor of safety (FS). The values of cohesion and fraction angel for the 10 sample points were obtained from the laboratory test results, while the value of soil hydrology, i.e hydraulic conductivity, transmissivity, effective rainfall and index wetness, referred to the literature source. The DEM (digital elevation model) was generated from the 1:25,000 digital topographic map, which produced the soil slopes and specific upstream contributing areas. The result of SINMAP model simulation shown that the regions with a high landslide susceptibility (FS <1, unstable) were spread unevenly with an area of 261ha (17,6% of the study area). The Landslide susceptibility map from the SINMAP model provided a satisfactory result with an accuracy of 62,5% against to the landslide events occurred during the period 2010-2017.
Detection of drought area using greening index and wetness index in Sukaresmi Subdistrict, Regency Cianjur, West Java
Authors: Anugerah M M , Wibowo A , Kusratmoko E 
Published: August 2019

Abstract
Drought is a natural disaster that reduces the supply of water in the atmosphere or on the ground, causing plants cannot grow normally. Drought is causing the decrease of plantation and harvest area, productivity, and quality of agricultural products. Sukaresmi Subdistrict, Cianjur Regency is depending on agricultural sector and has the risk of loss from drought. This research aims to detect spatial and temporal of drought areas and to analyze drought areas according to the physical condition of the land (altitude, slope, soil type, and land use) in Sukaresmi Subdistrict. This research uses Landsat 8 OLI imagery data from July-September 2013 and June-August 2017 analyzed by Normalization of Differences Vegetation Index (NDVI) and Tasseled Cap Transformation (TCT). Overlay of the moderate, high, and very high drought classes in the same year will generate drought areas that overlap each year. Drought areas during 2013 and 2017 are 726 hectares or 8% of the total Sukaresmi Subdistrict area, dominates the Kawang Luwuk Village and Cibadak Village in the western part of Sukaresmi Subdistrict. Mostly, drought areas located in paddy field land use (322.18 hectares); brown latosol soil type (447.85 hectares); and altitude of 500-1000 msl (624.1 hectares).
Complexity analysis of interconnected pore using hydraulic tortuosity
Authors: Juliust Hessel , Amien M. Nashih , Pantouw Genki Tanod , Eljabbar Latief Fourier Dzar 
Published: August 2019

Abstract
The complexity of the pore structure has been analysed using hydraulic tortuosity. The hydraulic tortuosity is defined as the ratio between the total curvature angles of the fluid flowpath to the distance between two facing sides of the sample. The fluid flowpaths in the connected pore are represented by streamlines which are calculated from the velocity map obtained from fluid flow simulation by means of Lattice Boltzmann Method. The streamline that is calculated with Euler Methods produce coordinates of the flowpath in the connected pore which are then used to calculate the tortuosity. The streamline are verified in a simple porous medium. The complexity analysis is verified on three simple models showing significant differences in complexity levels. The streamline generated using euler methods is suitable for the porous medium. The relation of the tortuosity and the permeability is tested in two porous medium that the permeability is known. It is found that the more complex the pore structure, the greater the tortuosity value. The hydraulic tortuosity is also inversely proportional to the permeability.
The magnetic susceptibility analyzes of Motonuno lake sediment in Muna Regency, Southeast Sulawesi, Indonesia
Authors: Jahidin  , Ngkoimani L O , Ilmawati W O S , Salihin L M Iradat , Irawati  , Usmardin  , Firman Al , Harisma  , Okto A 
Published: August 2019

Abstract
Study on the magnetic susceptibility, magnetic mineral, and content of element contained in the sediment has been done at Motonuno Lake Sediment in Muna Regency, Southeast Sulawesi Indonesia. Sediment samples in the form of cores were taken from three different sites by using the gravity core tool. Measurement of the magnetic susceptibility values was carried out by using the MS2C susceptibilitymeter. Content of element in the sediment was measured by using the SEM-EDX tool. The results showed that the magnetic susceptibility of sediment is -1 x 10−5 SI to 3 x 10−5 SI (site 1) and -2 x 10−5 to 2 x 10−5 SI (site 2 and site 3). Based on the value of magnetic susceptibility, the dominant magnetic mineral in the three sediment cores is pyrite (FeS2) which is an authgenic magnetic mineral. All three sediment core samples show that magnetic susceptibility values tend to be higher at the bottom of core than the top of core. This means that the sediment deposition takes place on different climate conditions, namely dry climate and wet climate. The elements contained in the sediment consists of O, Ca, Si, S, Al, Na, Cl, Fe, Mg, Au, Ti, Co, Cu, and Ni. All magnetic informations obtained in this study are very important in the understanding of paleoclimate condition at Motonuno Lake and its surrounding areas.
Study of integrated treatment of used bleaching earth cake from lubricant oil recycling process
Authors: Yuliana P T , Moersidik S S 
Published: August 2019

Abstract
“Used Bleaching Earth Cake (UBEC)” is the bleaching earth which has been used and filter pressed from the lubricant oil recycling industry. Comprehensive treatment required to treat UBEC as hazardous waste. This research tested the physical and chemical characteristics of UBEC to acknowledge its potential as engine fuel, and then UBEC was combusted in rotary kiln as refuse derived fuel (RDF). The bottom ash from the combustion process was used as fine aggregate replacement in concrete K350 production, compressive strength and Toxicity Characteristic Leaching Procedure (TCLP) was analyzed. UBEC consists of bleaching earth material (Monmorillonite 53.3% and Klinoptilolith 40%), oil residue, and impurities (heavy metals, carbon residue, etc.). Its calorific value ranges from 3000 to 5000 calories and meet the standards for being used as RDF. The average compressive strength result by replacing fine aggregate with 0%, 5%, 10%, 15% and 20% of its ashes were 31.88 MPa, 34.15 MPa, 38.45 MPa, 37.66 MPa, and 36.69 MPa, respectively. The highest compressive strength was at 10% of replacement. TCLP results still meet the standard. Overall, UBEC can be use as RDF and its bottom ash can be safely use as replacement for fine aggregates in concrete K350 production.
The effect of x-ray micro-ct geometrical zooming on the microstructure properties of porous medium
Authors: Ramadhan F W , Latief F D E 
Published: August 2019

Abstract
Digital rock physics has evolved rapidly due to its various advantages such as being able to see rock images in 3D without non-destructively. In this study, 3D images of porous medium sample were generated from X-ray micro computed tomography scanning device SkyScan 1173. This study aims to investigate the effect of X-ray Micro-CT geometrical zooming (sample position to the X-Ray source) on the microstructure properties of porous medium such as porosity, specific surface area, tortuosity, permeability and grain size distribution. The rocks tested were concrete sand samples. The distance between source and object was varied 3 times. The scan was processed through reconstruction process until thresholding. Porosity, specific surface area and grain was calculated by CTAn software. Tortuosity was calculated by finding the path at 26 neighboring pixels and the permeability was calculated by simulating a steady state fluid flow. The result is the greater the distance between the radiation source and the object, the smaller the resolution of the image. This causes some pores that are too small that eventually are grouped into rock matrix. Therefore, pore-related properties such as porosity and specific surface area will decrease, tortuosity will increase and permeability will decrease.