bluuebunny/crossref_metadata_2025 huggingface dataset:
Organic matter stock at suboptimal soils under forest and corn cultivation in wet tropical region
Authors: Yulnafatmawita Y , Saidi A , Pratiwi Z H , Haris ZA
Published: October 2020

The primary constraint of suboptimal soils under wet tropical regions, besides their low pH, is their low soil organic matter (SOM) content. This research was aimed to determine SOM stock of suboptimal soil orders (Ultisol, Oxisol, and Inceptisol) under corn (Zea mays) cultivation. This research was conducted using survey method, and soil samples were taken from 0-20 cm soil depth from each soil order under two types of land use (LU), corn cultivation and forest, in Lima Puluh Kota Regency, West Sumatra, Indonesia. The soil samples were analyzed at the soil laboratory at Andalas University, Padang. Parameters analyzed were soil bulk density (BD), texture, SOC, total-N. Data resulted showed that the soil texture from the three soil orders was classified as clay loam to clay, with the sand size particle was Inceptisol >Oxisol>Ultisol. Then, soil BD was categorized as medium. The highest SOM stock was at Oxisol under forest LU, then Ultisol and Inceptisol. Generally, SOM stock under forest was higher than under corn LU except at Ultisol, which the SOM stock was comparable. SOM stock under corn cultivation reached 43.7%, 87.7%, and 102.8% of that under forest, respectively, for Inceptisol, Oxisol, and Ultisol. Approximately 52-89% of the SOM was in the form of particulate organic matter (POM). The percentage of POM was generally higher under corn cultivation than that under forest LU. Stock soil total-N under corn cultivation compared to under forest was 37.7%, 68.7%, and 90.9% for Inceptisol, Oxisol, and Ultisol, respectively. The C/N ratio value of the SOM was considered medium.
Financial feasibility study of smallholder oil palm in Muaro Jambi District, Jambi
Authors: Edison E
Published: October 2020

Research objectives were to explain smallholder oil palm production expenditure, to explain annual rate of their profit, to explain feasibility smallholder oil palm farming financially in Muaro Jambi District, Jambi. Study was conducted in in 2017. 86 samples were selected by sampling method purposively. Primary and secondary data was needed in this research. Research operated the calculation of TC = FC + VC to explain first objective. While I = TR − TC method was operated to explain second objective. In order to analyze last objective, some methods were operated. Research found that rate of its expenditure was in average level. Its cost included operation cost, labor cost and other cost. Rate of its profit each hectare was IDR 19.118.532.-while its rate per household was IDR 25.412.602.-Therefore, it can be said that smallholder oil palm farming was feasible.
Botanical insecticide nanoemulsion of Piper Aduncum extract to control Cabbage Head Cartepillar Crocidolomia pavonana F. (Lepidoptera: Crambidae)
Authors: Lina EC , Erlina LH , Syahrawati My , Djamaan A , Arneti A
Published: October 2020

Botanical insecticide nanoemulsion is an insecticide with a transparent emulsion system, and it is an oil and water dispersion stabilized by a surfactant molecule, which has a size ranging from 50 to 500 nm. The experiment was conducted in Biota Sumatera Laboratory Faculty of Pharmacy and Insect Bioecology Laboratory Faculty of Agriculture Andalas University Padang on from July to August year 2018. The purpose of this research was to obtain the nanoemulsion of Piper aduncum fruit as a botanical insecticide capable of controlling the pest of cabbage larvae Crocidolomia pavonana. The experimental design used Completely Randomized Design (CRD) that consists of control treatment and nanoemulsion treatment of P. aduncum. Observations were used PSA with Zetasizer Nano ZS Malvern tools. Insecticidal activity of nanoemulsion was tested against C. pavonana. As the study found, the nanoemulsion has the following characteristics; its size ranges from 18.56 to 216.7 nm, its polydispersity index ranges from 0,202 to 0,371, its zeta potential ranges from -0,410 to -28,7 mV, and its distribution width range from 8,11 to 5570 nm. It has insecticidal activity against C. pavonana.
Characteristics and viability of probiotic capsule Lactobacillus paracasei ssp paracasei M13 encapsulated by extrusion using Carrageenan
Authors: Elida M , Gusmalini  , Saufani IA
Published: October 2020

Encapsulation aimed to protect and stabilize cells during the production process and applications in food products. Carrageenan extrusion techniques do not cause damage to cells so that viability is maintained. The research aimed to get the highest yield and viability from various concentrations of carrageenan coating material. Encapsulation of probiotic Lactobacillus paracasei ssp. paracasei Ml3 using carrageenan extrusion technique with a concentration of 1%, 2%, 3% and 4%. The parameters observed were microcapsule yield, diameter, sensory test and cell viability of probiotic. The results showed that the highest yield was obtained at a 3% carrageenan concentration of 43.2% with a diameter of 3.98 mm, round-oval shape, yellowish white color. The highest viability of microcapsules at 1% carrageenan concentration of 10.44 log CFU / g, 2% of 10.89 log CFU / g, and 3% of 10.11 log CFU / g was not significantly different between treatments, whereas at the lowest 4% concentration of 8.25 log CFU / g.
Development of dadih powder as a complementary food to prevent children from stunting in West Sumatra, Indonesia
Authors: Helmizar H , Surono IS , Saufani IA
Published: October 2020

This research aims to produce pasteurized dadih powder and the best condition for its production for the formula of supplementation. Besides, it is aimed at developing formula complimentary food, and it is used as local food to prevent children from stunting. The characteristics of dadih were analyzed by biochemical and daily intake converted into percentages. Dadih powder was analyzed with proximate and the total of lactic acid bacteria. The nutritional composition formula is analyzed by using Nutrisurvey Programme. Based on the result, it is recommended that the dadih powder should be given daily to the children at the age of 6-8 months. Furthermore, about 126 children were measured by using “anthropometric evaluation” to find out whether the children belonged stunting. The electronic scale was used to know the bodyweight of the children, and the recumbent length was taken by using length board. Each piece of equipment has a precise standard in which 0,1 kg is matching to 0,1 cm. The calorie in 100 g of dadih consists of 95.51 kcal with 31.8 g protein, 34.11 g fat, and 29.6 g carbohydrate. The formula of complementary food was recommended ad daily intake for children under two years of age based on their need: energy of 200 to 250 kcal and 6 to 8 grams of protein. Dadih powder was obtained by freezing technology and the use of vacuum heating to stabilize the powder. The nutritional composition of the dadih powder was standardized according to nutrition recommended to children under two years. Based on the anthropometric measurement of the nutritional status of children, there were 15.9 % stunting, 10.3 % underweight, and 3.2 % wasting.
Oil palm FFB dry heat sterilization through electromagnetic radiation
Authors: Makky M , Cherie D , Ardianto A
Published: October 2020

Sterilization processes in palm mills demand high energy, intensive water use, and excessive waste. Moreover, the process involves the use of a pressurizing chamber, and hence, extended the time required to complete the batch. Sterilization aims to deactivate the enzyme in the fruits Mesocarp and loosen the fruitlet to ease detachment from the bunch. This study proposes an alternate process with a similar aim and result while reducing the resources required, water in particular. The methods include exposing the oil palm Fresh Fruits Bunch (FFB) with electromagnetic radiation in different power and exposure time. The results showed by presenting the FFB with 180 Watt electromagnetic radiation in 16 minutes, the oil in the Mesocarp extracted as much as 66.71% of total weight. Furthermore, the properties of extracted oil (DOBI number, carotene content, and FFA level) were superior to the unmodified sterilization process. However, the cost of processing the FFB with electromagnetic radiation remains high, and further study required to economize the cost.
The influence of drying temperature on chemical components of herbal tea leaves (Spondiasdulcis soland)
Authors: Ismanto SD , Rahmi ID , Febrian A
Published: October 2020

Ambarella’s leaves (Spondias Dulcis, Soland) is a plant that is rich in benefits. This study was conducted to determine the chemical components, the effect of drying temperature, antioxidant activity and toxicity of the leaves of Ambarella. This research has been carried out in the Laboratory of Agricultural Technology Andalas University Padang on December to February 2015. The study designed using Completely Randomized Design (CRD) with 5 treatments and 3 repetitions. Data were analyzed statistically by using ANOVA and were continued with Duncan’s New Multiple Range Test (DNMRT) at 5% significance levels. The treatments had done through a drying process at a temperature of 50°C, 60°C, 70°C, 80°C, and 90°C. The chemical analysis which is observed such as of water content, ash content, and antioxidant activity carried out on the product. The best products is which observed such as tannin content, total polyphenols, antioxidant activity, triterpenoids compounds, flavonoids, and toxicity. Based on the analysis of raw materials Ambarella’s leaves, was obtained by water content of 33.81%, ash content of 9.33%, and the antioxidant activity of 60.07%, while the qualitative test gave a positive result of the flavonoid. Leaf tea product is a leaf tea best ambarella with temperature 70°C for 180 minutes. The product has a water content of 7.46%, ash content of 7.72%, 29.03% total polyphenols, antioxidant activity of 40.71%, 6.61% tannin contents and 1261.82 ppm LC50 value.
Analysis of land cover changes within the working area of nagari forest: a case of Nagari Sungai Buluah Timur, Padang Pariaman District, West Sumatra
Authors: Rosita E , Yonariza  , Asmin F
Published: October 2020

Nagari forest is a social forestry scheme adopted in West Sumatra province to ensure the rights of the community to manage and ensure sustainable management of state forests. Analysis of changes in land cover can be an interesting study to identify the pattern of land use by the community after given the right to manage (permit). This study aims to analyze the change of land cover on the working area of nagari forest in Nagari Sungai Buluah Timur, Padang Pariaman district. The method used was spatial land cover analysis based on land cover data of the Ministry of Environment and Forestry in 2013 and 2017 validated with land cover data from Google Earth in 2014 and 2018. Field observations and interviews were also conducted to strengthen the analysis of the causes of the change. Based on the results of the analysis, land cover changes occur due to increased community agricultural cultivation activities after obtaining the right to manage. Changes occur from primary dryland forest and dryland farming to shrubs. Based on Google Earth interpretation, shrub cover also turns into dryland farming.
The implementation of community-based forest management (CBFM) schemes within the protection forest management unit (PFMU) Sijunjung, Indonesia
Authors: Frimadani M R , Yonariza Y , Yuerlita Y
Published: October 2020

Community-Based Forest Management (CBFM) has been implemented in West Sumatra Province since 2012 targeting 500,000 ha State forest land. It is part of a total of 12,7 million ha of forest areas designated for CBFM in Indonesia. This paper aims to describe the implementation of CBFM schemes in the working area of PFMU Sijunjung in terms of its institutional and forest utilization activities by the local community, beneficiaries of CBFM. This study was carried out in three CBFM with the forest size ranging from 217 – 504 ha. CBFM schemes implemented in this area consist of Community Plantation Forest (CPF), Community Forestry (CF), and Village or Nagari Forest (VF). The data were collected through observation and key informant interviews. The study found that Community Forestry and Community Plantation Forest are managed by re-institutionalizing existing local institutions. In contrast, Nagari Forest is managed by new institutions established by the village government. Institutional formation in each CBFM scheme is motivated by government policy. Institutions of Community Forestry and Community Plantation Forest are secure enough in terms of institutional activities, agreed rules and restrictions applied, the beneficiaries community only harvest Non-Timber Forest Products (NTFPs). This practice may lead to sustainable forest resource use. On the other hand, the new institution of Nagari forest has created a conflict of interest between the parties so that the institution becomes weak, and the rules in management are not easy to be agreed.

Consequently, the community still widely practice illegal logging in various scale. This study concludes that CBFM practice should consistently encourage local institutions as the core of forest management, as stated in the PFMU long-term plan instead of establishing new institutions. Therefore, the CBFM program should strengthen local institutions and promote synergy among multi-stakeholders.
Study of the public perspectives on the problems of Batang Kuranji River Basin management in Padang City, West Sumatra, Indonesia
Authors: Nurpasari F , Febriamansyah R
Published: October 2020

Batang Kuranji is one of the main rivers that divide the city of Padang, West Sumatera, Indonesia from the Bukit Barisan mountains in the east to the Indian Ocean in the west. Batang Kuranji River Basin has a 202.70 km2 watershed with the main river length of 32.41 km. Over the last three decades, there has been an increase in the frequency of problems caused by the declining quality of watershed management, such as upstream landslides, and flooding downstream in urban areas. This study aim to explore and identify the watershed management issues, from upstream to downstream, based on community perspectives along the river basins. Qualitative and quantitative data collection methods were applied through surveys with respondents, semi structured interviews with key informant and Focus Group Discussion with stakeholders. In general, each community group along the river basin has a explain more details of the more frequent flooding problems and the higher of flood. However, the factors that cause the problems for each community are different with each group blaming one another. This study explores these differing views between groups and provides recommendations for policy makers towards integrated management.
How about integrating tree crops into your oil palm plantation?
Authors: Yonariza Y , Mutolib A , Yurike Y
Published: October 2020

The synergy between forest and plantation is much sought after to maintain the complex role of forest areas. Forest should be managed for its socio-economic and ecological position while land-use change tends towards maximizing economic role. Indonesia is struggling to rehabilitate most of her production forests. Many cases show that the forestlands have been converted into monoculture oil palm or rubber plantation that caused severe ecological degradation and declined forest role in ecosystem maintenance. The government of Indonesia is seeking synergy between these two conflicting land uses types. Forest Management Unit (FMU) has been chosen as a model to carry out day to day management at field level beginning in 2010. Unfortunately, majority FMUs have not been in operation due to limited information at the field level, especially about the willingness of landowners to cooperate in the restoration of the production forest. In Dharmasraya District, West Sumatra, a 33,000 hectare of remaining production forest areas is undergoing deforestation due to forest conversion into oil palm and rubber carried out both by smallholder and large scale oil plantation companies. Based on a household survey among smallholders plantation in Dharmasraya District, West Sumatera Indonesia, the paper presents farmers’ willingness to integrate timber and non-timber plants into their oil palm plantation and discusses its implication for forest management especially in forest restoration management for FMU. The study found that at this time, it is hard for the landowner to integrate a timber tree into their smallholder oil palm and rubber plantation. They value land higher for the farm than for forest. Landowners feel secure with the customary land right than statutory land rights. Hence, the study suggests FMU Dharmasraya intensify forest extension service on forest function and persuade landowners to seek a balance between the ecological and economic role of forestland. More importantly, forest ecosystem service needs a proportional monetary valuation.
Marine Resource Conservation for Sustainable food security in Indonesia
Authors: Zamzami L , Effendi N , Syahrizal  , Ermayanti
Published: October 2020

This paper examines the local wisdom of fishing groups on local marine resource conservation for sustainable food security. Pariaman is a region of coastal areas and have small islands tend to have limited agricultural resources and access to food from outside. The problem that forced a fishing community to commit acts of adjustment so that the food needs can be met sustainably. Data were collected from a small number of fishing households in the village of Pariaman Tengah in Pariaman city, using mainly qualitative research methods. At the village, traditional fishing areas have been properly benefited by local fishermen. Together with the government, they have conserved the area, where sea turtles, some species of finfish, coral reefs are protected. It was found that the local wisdom use consists of determining the season of fishing, making traditional fishing gear and sustainable food security for the household. They have the local wisdom for resource conservation are using no harmful gears, a commitment not to catch and kill the turtles and commitment not to throw rubbish into the sea. Based on these results, it can be concluded that fish as a critical food source by fishing groups in ensuring sustainable food security system in agricultural production systems, distribution, and food consumption. Industrial fisheries can also contribute to the food security and nutrition of the poor in Pariaman fishing groups, especially when they favor the wide commercialization of cheap, easily stored and transported nutritious pelagic fish such as sardine, pilchard, herring, anchovy or even tuna. Over the years, indirectly to food security through employment creation where legislation to protect decent working conditions is in place become a tradition.
The Capacity of Soil Bacteria, Bacillus sprif
and Pseudomonas sprif, in solubilizing Soil Phosphate and Potassium
Authors: Setiawati T. C. , Pandutama M.H. , Mandala M. , Arta C.
Published: October 2020

Increasing availability of phosphate (P) and potassium (K) in soil can be driven by microbial activities, which are specifically able to dissolve P and K, known as nutrients hard to dissolve. The objectives of this research were to study the solubilising activity toward soil P and K by P- and K- solubilizing bacteria in sterilized and non-sterilized condition of Oxisol and Inceptisol. Marking procedure was performed on P- and K- solubilizing bacteria to scrutinize their activities in the soil. Marking process was conducted by utilizing resistance toward rifampicin antibiotica concentration of 50 µg.ml−1. The results of this study revealed that the increasing availability of P was evident in both soil conditions (sterilized and non-sterilized). In Oxisol, P availability increased by 48.86%, while in Inceptisol it reached an increase by 187.77%, compared to the initial concentration. Likewise, K availability in Oxisol increased by 4.53 times, and it rose by 5.26 times in Inceptisol. The activities of P solubilising bacteria, in addition to being able to increase soil P availability, were also able to enhance soil’s K content. Similarly, the K solubilizing bacteria were also capable of increasing P availabilityy in both soils.
The Effect of Amorphous Polysilazane and Infiltration Method on The Densification of SiCf/SiC Composites
Authors: Muhammad Habieb Alvin , Noviyanto Alfian , Sukmarani Galuh , Kusumaningrum Retno , Fauzi Fiqhi , Bambang Widayatno Wahyu , Sukarto Wismogroho Agus , Ikhlasul Amal Muhamad , Taufiqu Rochman Nurul
Published: October 2020

In this study, we investigated the ability of polysilazane as starting materials to fabricate SiCf/SiC composite prepared by slurry infiltration method, i.e., vacuum infiltration (VI) and electrophoretic infiltration (EPI). After infiltration, sintering was performed using hot pressing vacuum furnace at 1750 °C for 1 h in Ar atmosphere and applied pressure of 20 MPa. Phase analysis revealed the formation of a-SiC for EPI, while a-SiC and p-SiC were detected for VI. It seems the transformation of (3- to a-SiC enhances significantly in the EPI, resulting in single-phase a-SiC. Moreover, the presence of excess carbon after sintering indicated that the amount of Si and C was not stoichiometry. The density of SiCf/SiC composite infiltrated by VI and EPI was 2.68 and 2.92 g/cm3, respectively, corresponding to 81.6 and 90.9% of theoretical density. Although the density is quite different, the average flexural strength for VI and EPI was 174 ± 5 and 200 ± 7 MPa, respectively, which does not differ significantly. However, the tail extension was observed for both samples, indicates the toughness increase compared to monolithic ceramic. This study indicates that polysilazane can be used as an alternative precursor for the fabrication of SiCf/SiC composites using a slurry infiltration method.
The Study of Soga Brown Colour Visual Digitization from Classical Batik of Yogyakarta
Authors: Firmansyah Almira
Published: October 2020

Indonesian traditional textile has distinct signature textile culture on its natural dye, for example Classical Batik of Yogyakarta which is well known for its brownsogacolour, a brownish colour obtained from the colourants combination ofjambalbark (Pelthophorum ferrugineum),tingibark (Ceriops candolleana), andtegeranwood (Cudrania javanensis). Along with those ingredients, Classical Batik of Yogyakarta also uses indigo plant (Indigofera tinctoria) as its blue colourant to help create darker brown colour, andkapur tohor(Calcium Oxide) for pre and post mordant treatment. The colour study output would be a recommendation as it would be a non-analog inventory documentation of Classical Batik of Yogyakarta natural dye. In order to make the colour visual data suitable for digital device, the research requires fabrics dyed with Classical Batik of Yogyakarta natural dye ingredients and technique as samples for colour identification study by spectrophotometry and by digitalization method to obtain RGB colour value. The natural dye colour digital format data is designed to facilitate data preservation and its acquisition by individuals whom have interest on textile natural dye.
Study of Effectiveness of Integrated Public Space
Authors: Herry Rachmatsyah T. , Chicilia
Published: October 2020

Child Friendly Integrated Public Space is one of the important policies/programs of the Special Capital Region of Jakarta Provincial Government to realize Jakarta as a Child Decent City. It is a place and/or open space that combines the activities of citizens by implementing the 10 Main Program for the Family Empowerment and Welfare with the Child Decent City Program. To find out the effectiveness of the Kenanga Child Friendly Integrated Public Space in Cideng Subdistrict, indicators for fulfillment of functions were used as contained in Article 4 of the Governor Regulation of the Special Capital Region of Jakarta Province Number 123 Year 2017 concerning Management and Requirements for Facilities and Infrastructure of Child Friendly Integrated Public Spaces. Data were collected through observations, document reviews, and in-depth interviews with informants consisting of the Secretary of the Family Empowerment and Welfare Activator Team, consultants, managers, and user communities. The collected data were analyzed using quantitative and qualitative descriptive analysis techniques. The results of the study concluded that the Kenanga Child Friendly Integrated Public Space has been effective in all indicators of fulfillment of functions, but still requires assistance from the government in terms of maintenance of infrastructure and facilities as well as the development of a management information system that is supported by a complete set of hardware, software, databases, as well as computer networks and data communications.
Effect of Nano Hydroxyapatite in Toothpaste on Controlling Oral Microbial Viability
Authors: Rifada Aulia , Muthi’atul Af’idah Bannan , Aufia Wafa , Vibriani Agnia , Maghdalena Maria , Eko Saputro Kurniawan , Wahyu Nugroho Dwi , Arief Iskandar M. , Cahyanto Arief , Noviyanto Alfian , Taufiqu Rochman Nurul
Published: October 2020

The aim of this study is to examine the effect of nano hydroxyapatite in the toothpaste and its effect on the pH and microbial activity. Nano-hydroxyapatite (nHAp) is considered one of the materials that have high biocompatibility for biomimetic material due to its chemical and morphological similarity with dental apatite. Additionally, it has been documented to possess antibacterial potentials. The present study was conducted to identify the relationship between oral microenvironment pH change and its role in the Streptococcus mutans viability, a common pathogen in the oral cavity. Change in pH is closely related to number of Streptococcus mutans as the main cariogenic organism and acid-producing bacteria. The study was carried out using 0.25%, 0.7%, and 1.5% concentration of HAp in toothpaste formulation and commercial toothpaste as control. Our studies showed that the most significant pH fall was observed in 1.5% and 0.7% nHAp. However, in 60 minutes, all nHAp groups were able to restore pH into neutral, especially in the 0.7% nHAp, which reached a pH of 7. As a comparison, the commercial toothpaste only returned to 6 within 1 hour. Experimental method of this study is In vitro oral microenvironment pH and microbiological analysis on teeth fragment. The detailed data about microstructure and antibacterial activity will be presented.
Fracture Toughness and Microstructure of Gas Metal Arc Welded Plates of Aluminium Alloy 5083 Using Different Filler Wires and Heat Inputs
Authors: Hidayat Arif , Junaidi Arif , Mudiantoro Sunoto , Winarto Winarto
Published: October 2020

Aluminum alloys AA5083 is alloys which mostly used in the hull components of the ship and high-speed craft. Commonly gas metal arc welding (GMAW) is used for joining the construction. Welding strength especially cracks toughness, is very important on this welding due to the regular operation of the ship or high-speed craft. In this research, welding of aluminum alloys AA5083 with dimension 150 mm x 350 mm and thickness 15 mm and 20 mm, were carried out by gas metal arc welding using two difference filler metal ER5183 and ER5356, and 99% argon is used as shielding gas. The result of the experiment that the maximum value of excellent toughness was shown on welding with thickness plate 15 mm using filler metal ER5356 and heat input 7.8 kJ/cm.
Influence the Filler Metal Containing Zirconium on the Weld Metal Porosity of The MIG Welded Aluminum Alloy 5083
Authors: Adam Wahidun , Winarto Winarto , Mudiantoro Sunoto
Published: October 2020

The aluminum alloy series 5083 has high corrosion resistance and high specific strength properties; hence, it is widely used for ship structures, marine components, cryogenics of LNG tanks, and unfired pressure vessels. This study was undertaken to investigate the effect of zirconium on weld metal porosity and hardness of MIG welded aluminum Alloy 5083. Zirconium is one of the alloying elements that are mostly used for grain refining in the aluminum casting process. Zirconium element was previously added in the electrode wire as a filler metal. The experiments were carried out by MIG welding for several aluminum alloy plates to produce the full penetration weldments. Two different filler wires used in the welding: one is containing zirconium, and another is no containing zirconium. The grain size of weld microstructures was measured using a Linear Intercept Method (ASTM E 112), and the hardness measurement is conducted using micro-Vickers along the cross section of AA-5083 weldment. Results showed that the grain size of AA-5083 weldment using the filler metal containing zirconium was considerably finer size than that of using the filler metal without zirconium. Moreover, the hardness of AA-5083 weldment using the filler metal containing zirconium is generally higher than that of using the filler metal without zirconium.
Study on Manufacturing Company Sector Industrial Consumption Goods in Indonesia
Authors: Meiryani  , Aninda Yuanita Fransiska , Heykal Mohamad
Published: October 2020

This research is using quantitative method. The data withdrawal techniques in this research are purposive sampling. The data are secondary data that are gained from the companies documentary that are already exist and making progress at this time. Research data are analyzed with multiple linear regression which are processed with Microsoft excel and SPSS 22. The result of this research show us that account receivables turnover doesn’t effect the company liquidity data that are taken from 2016 to 2018 which are filtered in such way for the purpose of this research. It is caused by cash turnover in the company are no yet compatible with the recorded data of account receivable turnover. Meanwhile the cash turnover give positive effects towards the liquidity of consumption industry sector which are the Y variable. The bigger the cash turnover, will give the company more power to accomplish payment for short term debt which give us meaning that the company are liquid.
Vehicle Identification Systems using Virtual Line Sensors and Speed Up Robust Features
Authors: Mahatmaputra Tedjojuwono Samuel , Devina Widjaja Nathalia , Kurniawan Antonius
Published: October 2020

This work proposes an improved and robust algorithm to a virtual line approach object movement detection using computer vision technique. The improved performance will be emphasized on how one line could detect multiple object, determines their sizes and could at most classify the object into group similarities. The algorithm later will identify the vehicles based on their license plate using speed up robust features - SURF technique. The method incorporating Bresenham’s points plotter algorithm to determine the points coordinate in a line array, which later calculating movement within the given points and group neighboring points with pixel values indicating movement that are in close proximity as one object. This could then calculate the number of points laid within the group which then could determine the size of the object. As a result of the proposed work, a robust object classification technique that is implemented as a computer application that can be used in a live environment context.
Synthesis and Characterization of Anode for Lithium Ion Battery
Authors: Deswita  , Wahyudianingsih  , Yulianti Evi
Published: October 2020

Anode sheet manufacturing for lithium batteries coated with Polyvinylidene fluoride polymer (PVDF) has been done. The anode sheet is made using a desktop bubble remover from graphite base material by varying the PVDF content of 10%, 15% and 20%, which is called as G1, G2 and G3 samples. The anode material from the mixture of graphite and PVDF is then coated again using PVDF polymer electrolyte with variations in content as much as 10%, 15% and 20%, respectively called as GL1, GL2 and GL3 samples. Characterization of the anode product was measured using XRD diffraction, scanning electron microscope (SEM) equipped with energy dispersive spectroscopy (EDS). The conductivity of the anode sheet was measured using LCR meter. The result shows that the PVDF polymer phase is only observed in GL1, GL2, and GL3 samples. The conductivity value (σ) of the anode sheet in the samples G1, G2 and G3 is obtained in the order of 103 S.cm−1 to 102 S.cm−1 slightly greater than that of the standard anode sheet («103 S.cm−1). The conductivity (σ) of the anode sheet tends to decrease with the addition of the PVDF polymer for the GL1, GL2 and GL3 samples to 10-4 S.cm−1. The maximum conductivity in this study was obtained in the G2 sample, with a PVDF polymer content of 15%. SEM / EDS observations show that the fluorine (F) element increases with the addition of the PVDF for GL2 sample.
The Future of All Solid State Battery
Authors: Kartini Evvy , Theresa Genardy Carla
Published: October 2020

All Solid State Battery, is a type of battery which uses no liquid electrolyte, instead, it uses solid electrolyte (alternative to lithium-ion battery). This type of battery still has not been commercially used, but will soon be used in electric vehicles. The demand for the production of solid state battery is due to the advantages that arise from the safety issue. Solid electrolytes are the solid that exhibits ionic conductivities about 10−3 S/cm, and it conducts ions between the cathode and anode in the lithium ion battery. Various solid electrolytes based on phosphate glasses have been developed. This article reviews the developments of solid electrolytes and its applications.
Power Allocation Based on Channel State Information in Massive MIMO System
Authors: Boovarahan N C A , Umapathy K
Published: October 2020

A system with large number of carriers doing the transmission in many sub-channels (OFDM) or multiple antennas (MIMO) sequentially the power was allocated. However, the information of the channel parameters is predictable, then successive power allocation for notable advancement in system productions can be attained. Broadcasting power allocation might upgrade system performance by means of comprehensive capacity increase or bit error rate reduced. Power Allocation (PA) for Heuristic Beamforming with Maximum Ratio Transmission and Zero-Forcing Beamforming method was used. The relay to earth transmission over1000K users with Signal to Noise ratio of 5 dB, and not correlated Rayleigh fading channels. Maximum ratio and Zero forcing these two linear methods of pre-coding can be taken. This MATLAB simulation differentiated the Spectral Efficiency (SE) acquired when having precise CSI with pilot sequences of length τp. The conclusions are based on movability of the user signals. Simulation results produces the balancing effect between PA and Spectral Efficiency, and neatly displayed the variation with existing work, and precisely displayed that comparatively greater transmit power will be a huge energy efficient level is reached.
Design of Microstrip Patch Antenna with improved characteristics and its performance at 5.1GHz for Wireless Applications
Authors: Parasuraman S , Yogeeswaran S , Ramesh G P
Published: October 2020

Despite the many advantages of microstrip patch antennas, they do have some considerable drawbacks. One of the main limitations with patch antennas is their inherently narrowband performance due to its resonant nature. With bandwidth as low as a few percent; broadband applications using conventional patch designs are limited. The paper presents a broadband microstrip patch antenna for wireless communication. In its most basic form, a microstrip patch antenna consists of a radiating patch on one side of a dielectric substrate which has a ground plane on the other side. The patch is generally made of conducting material such as copper or gold and can take any possible shape. A rectangular patch is used as the main radiator. There are several advantages of this type of broadband antenna, such as planar, small in size, simple in structure, low in cost, and easy to be fabricated, thus attractive for practical applications. This rectangular microstrip patch antenna is designed for wireless communication application that works at 2.4 GHz with gain 11 d B for outdoor place. It also has a wide angle of beam in its radiation pattern. The results obtain that microstrip patch antenna can be used as client antenna in computer and workable antenna for wireless fidelity.
Design and Fabrication of Contour Shape Microstrip Patch Antenna for Biomedical Application
Authors: Parasuraman S , Yogeeswaran S , Ramesh G P
Published: October 2020

This paper presents the design of a contour shape reconfigurable microstrip patch antenna. The reconfigurable microstrip patch antenna is one of the excellent candidates for portable wireless device very simple because of its low profile, light weight and low cost. However, the requirement of frequency bandwidth is becoming greater in present wireless communication system. It is presenting for biomedical application band which covering from 8GHZ to 12GHZ frequency range. This microstrip patch antenna is capable of operating on both linear and circular polarization. This type of patch antenna fabricated on FR4 substrate and also fed by feed line is same substrate. By controlling the bias voltage of four PIN diodes, the polarization of antenna can be switched between four states two state of linear polarization for (vertical and horizontal) and two states for circular polarization for (RHCP & LHCP). There are several steps to design this antenna including determine the antenna specific characteristics antenna simulation construction and analysis. The explanation detail for design procedure simulation results, methods and techniques are discussed in this paper
Erosion studies of Plasma-Sprayed NiCrBSi, Mo and Flyash Cenosphere coating
Authors: Nagabhushana N , Rajanna S , Ramesh MR
Published: October 2020

The erosion studies of plasma sprayed NiCrBSi / Mo / Flyash Cenosphere and NiCrBSi / Flyash Cenosphere on Superni 76 at room temperature for 30° and 90° impact angle were studied. The microstructure, adhesion properties, microhardness and porosity were investigated. Using SEM, EDS and EDAX techniques, the effect of phase change in the coating during the erosion was analyzed. The NiCrBSi/Mo/Cenosphere coating exhibits greater erosion resistance, and its loss of volume accounting nearly to 50% of the NiCrBSi / Cenosphere coating. Compared to a 90° impact angle, the smallest erosion loss was observed at 30°. The erosion process assessed using SEM micrographs showed that the coating suffered ductile fracture, exhibited acute deformation and had abnormal oxide cracks. The enhanced metal oxide has a shielding effect, can resist erosion, and thus has better erosion resistance.
A Review on Tribological Behaviour of Natural Fiber Reinforced Polymer Composites
Authors: Manjunath C B , Srinivasa C V , Basavaraju B , Manjunatha G B , Ashok R B
Published: October 2020

In the past, asbestos and copper were preferred as friction materials because they have good ability to dissipate heat, but have proven to be harmful to the environment. Recently, more researchers are focused on non-asbestos friction composite materials due to its non-toxicity and biodegradability. Despite synthetic fiber composites having eco-friendly nature, because of its cost and pollution most of the researchers show interest on natural fiber composites. Hence, there is a need to explore the analysis on the tribological behavior of composite materials. The availability of natural fibers and the ease of manufacturing have tempted researchers to study their feasibility of their application as reinforcement and the extent to which they satisfy the required specifications in tribological applications. Hence, the aim of this review is to demonstrate the tribological behavior of natural fiber reinforced composites and find knowledge about their usability for various applications that tribology plays a dominant role. This review presents the reported work on natural fiber reinforced composites with special reference to the type of fibers, matrix, polymers, treatment of fibers and test parameters to understand their usability for various automotive applications.
Principal Component Analysis and its Application to Nominal Gross Domestic Product
Authors: Hiregowda Suchitra , Pujar GH , Betageri VS
Published: October 2020

Gross Domestic Product refers to financial or market value of all goods and services which are produced within the countries in a specific time duration. As expansive measure of universal domestic production, it functions as a comprehensive record of the country’s economic health. Nominal Gross Domestic Product is the computation of raw data and is more utilitarian comparing national economies on the international market. Some countries have very differing Gross Domestic Product per capita between its regions. A countries region tend to intersect overtime, the discrepancy between the poorer and richer regions is kept over decades in other cases. Here, we considered progress in the nominal Gross Domestic Product per capita across 19 regions in Spain to provide the analysis of progress. This could answer few questions with respect to Nominal Gross Domestic Product viz., Have the regions converged? Which is the spread between regions? The central theme of this article is to answer whether can we make a cluster analysis of the regions after applying principal component analysis?
An Efficient Association Rule Mining Algorithm Based on Animal Migration Optimization Processing of Unknown Incidents in Crime Analysis Brance
Authors: Jagadeesh K R , Kumanan T
Published: October 2020

A new protection scheme was proposed to avoid this problem. It is intended that each node uses a salted and a not salted HLL. If their estimates differ considerably, an attacker attempts to manipulate the estimates of HLL. In addition to avoiding manipulation, the proposed salted and unsalted (SNS) regime can also detect attempts at manipulation. A practical configuration showing how manipulation attempts can be detected in a low false positive probability has been shown to be applicable to this SNS scheme. Therefore, if merge ability is to be preserved it can be an interesting approach to protect HLLs from avoidance. In this paper the proposal for a new mining algorithm based on Animal Migration Optimization is made to decrease the number of Association Rules called ARM-AMO. The idea is to remove from the data rules which are not highly supportive and unnecessary. First of all, common item sets and association rules are generated with an Apriori algorithm. AMO also reduces the number of association rules incorporated in a new fitness function. In here, we provide a well-organized mechanism for incident derivation under the unwanted incident. This mechanism very useful for measure the heavy load of an incoming incident and exact calculation of the probability. In additional method is a Select-ability mechanism, which performs an important responsibility in incident derivation under the unwanted incident in both the settled and the unknown incident. A model for signifying derivative incident introduced jointly with an Advanced Sampling Technique that come close to the derived incident probabilities. This augmentation executed the prioritization techniques. In this prioritization techniques, recognize such cases in which the order of incident finding is strong-minded and mechanism for the definition of a settled detection execution.
Series Hybrid Power Train for Automotive Application
Authors: Justin Shekaina , Larguesh Samia , Shoukry Wafaa , Naif Alnemer Ghada , Shermina J
Published: October 2020

In this paper a series hybrid powertrain is presented; factoring in the existing fossil fuel infrastructure established in oil producing economies, environmental impact, drivability characteristics, utilization patterns, advancement in automobile control sub-systems and appropriateness of technology. The prime mover employed for this hybrid are electric hub motors, powered by a super capacitor bank [SCB], which in turn is connected in with a relatively smaller battery pack [BP]. An IC engine is added in the loop to energize the SCB when the charge in the BP falls below the sub-optimal level; and, when the destination or fast charging facility are not reachable with the charge left in the SCB-BP module. A fast charger or a regular charger is plugged in to charge the BP when the vehicle is stationary.
Analysis and Computation of Encryption Technique to Enhance Security of Medical Images
Authors: Kiran  , Parameshachari BD , Panduranga HT , Ullo Silvia liberata
Published: October 2020

Recently, there are many advanced techniques used in the medical fields, such as smart health, e-health and telemedicine applications. These techniques rely on open source networks to transmit the digital medical images. These images have very sensitive and confidential information about the patients. Regrettably, most of the regularly used algorithms provide very less security and present a high communication overhead, with high computation costs. Due to these issues, a Region of Interest (ROI) method, based on selective image encryption, is proposed in this paper. An active contour image segmentation is first used to divide the ROI and the Region of Background (ROB). Then, a Hilbert curve, with a Skew Tent map are used to implement the Permutation and diffusion techniques. Namely, the ROI part is permuted according to a Hilbert scan pattern, to decrease the similarities between the inside adjacent pixels. Then pixels in the permuted ROI part are XOR pixel-wise with random numbers, generated based on a predefined threshold value from a Skew Tent map. Finally, encrypted ROI and ROB blocks are combined to generate encrypted images. Given the obtained experimental results, the proposed method is very likely to improve image security, through the employment of correlation checking, key sensitivity, entropy, diffusion characteristic and histogram tools.
Fatigue and Facture Behaviour of Al6061-Al2O3 Metal Matrix Composite: Effect of Heat Treatment
Authors: Mahendra H M , Prakash G S , Keerthi Prasad K S , Rajanna S
Published: October 2020

Metal matrix composites of 6061Al - Al2O3 matrix are associated as standard materials inside the space of flying, car and marine applications to move forward the physical properties. Particulates of Al2O3 with 40 µm, 60 µm &100 µm were reinforced utilizing Die casting method. Next stage of fortress is being changed from 0-16wt% in steps of 4wt%. Microstructural characterization has been conducted for the composites to check the homogeneous movement of particles. Fatigue and Facture Toughness properties of 6061Al - Al2O3 composite have been inspected. Effect of fortress on the Disintegration, Shortcoming and Facture toughness properties was considered carefully. A considerable enhancement in Fatigue and Facture Toughness properties was observed by the incorporation of particulates. Formation uniformly dispersed particulates in the matrix was observed for the composite up to 12% filler composition.