bluuebunny/crossref_metadata_2025_split huggingface dataset:
Feasibility study of grouper (Epinephelus sp) culture in Manyak Payed, Aceh Tamiang region, Indonesia
Authors: Herry F H , Muhammadar A A , Putra D F , Irwan Z A 
Published: November 2019

Abstract
The study aims to analyze the suitability of grouper culture in the waters of Meurandeh village by taking physical, chemical, and biological aspects. This research was conducted in Meurandeh village, Manyak Payed Aceh Tamiang sub-district from December to January 2019, using a scoring method on 3 observation stations, with direct measurement methods (in situ). Water quality parameters measured were as bathymetry, current velocity, water transparency, temperature, salinity, pH, dissolved oxygen, and nitrate. The level suitability was divided into three (3) suitability criteria very suitable, suitable, and not suitable. The results showed that the locations of stations I, II and III were included as very suitable classes for grouper cultivation with a total score of 73%, 77%, and 77% respectively. It can be concluded that the waters of Meurandeh village could support the grouper culture activity.
The effectivenes of Panglima Laot of Simeulue and its coherence with fisheries management industry based on EAFM (Ecosystem Approach to Fisheries Management)
Authors: Miswar E , Rahmah A , Nazwar F B , Irham M , Afwanuddin A , Ulfah M , Iqbal T H 
Published: November 2019

Abstract
Fisheries management is an integrated approach using EAFM (Ecosystem Approach to Fisheries Management) is to be able to guarantee the long-term utilization of fishery and maintain the fish stock in the manifest. The purpose of this research is to know the details of the Institutional domain EAFM indicators in Simeulue District and how the level of effectiveness against the management of the fishery based EAFM. This research was conducted in January until April 2018 on Institutional Commander LaotLhokSimeulue Timur. The data collection methods used by doing the interview and the dissemination of the questionnaire, as well as data obtained from institutions. Methods of analysis used are a composite analysis with simple arithmetic and visualization average flag model (flag modeling). The results showed that the Commander Laotdimasing-masing location has a different value in Commander LaotLhokSimeulue Timur gained an aggregate value of 89 and is in good condition.
Checklist of coral fishes in Lhoknga and Lhok Mata Ie Beaches, Aceh Besar, Indonesia
Authors: Nur F M , Batubara A S , Perdana A W , Eriani K , Muchlisin Z A 
Published: November 2019

AbstractThe objective of the present study was to inventory the coral fish fingerling in Lhoknga and Lhok Mata Ie Beaches, Aceh Besar District, Aceh Province, Indonesia. The study was conducted from February to March 2019 in two locations, namely;Lhoknga Beach and Lhok Mata Ie Beach in Aceh Besar District, Aceh Province, Indonesia. The fish sample was caught using a handline hook and casting net. A total of 51 fish were sampled during the study, and it belongs to 8 orders, 11 families, 19 genera, and 25 species. The Labriformes was predominant with six genus and eight species followed by Scorpaeniformes (four species), Perciformes and Blenniiformes, four species respectively. Carangiformes, Mugiliformes, and Gobiiformes with two species, respectively and Anguilliformes with one species.In addition,Epinepheluswas the predominant genus with four species.
Granulometric analysis of Lampuuk-Lhoknga Beach, Aceh Province
Authors: Antoni S , Bantan R A , Aboulela H , Setiawan I , Purnawan S 
Published: November 2019

Abstract
This research focuses on the granulometric analysis of coastal sediments zone in Lampuuk-Lhoknga Beach, Aceh Province. A total of 11 stations along Lampuuk-Lhoknga Beach located in swash zone are determined as locations for data collection. The sample sediment was collected in November 2018. The selected station was divided into two zones namely the upper swash zone (USZ) and lower swash zone (LSZ). The sampling technique was carried out by using a vertical coring method in order to get a sediment layer with a thickness of 5 cm from the surface. Each sediment sample was wetly sieved to obtain a weight distribution percentage based on the sieve size. Sediment statistical analysis of each sample was based on the Folk and Ward Method. The results of the study show that the average conditions of Lampuuk sediment in the upper swash zone are medium sand; Moderately Well Sorted; Symmetrical; and Mesokurtic. In Addition, at the lower swash zone is found a medium sand; Moderately Sorted; Coarse Skewed; and mesokurtic. The beach morphological diversity has resulted in a variation of statistical parameters along the shoreline at Lampuuk and Lhoknga.
The synthetic study of coastline change using one-line numerical model
Authors: Irham M , Suryati S , Maulinda M , Miswar E , Tarmizi T 
Published: November 2019

Abstract
The beach is a boundary between the ocean and land changes with time due to erosion and sedimentation events. The study of beach changes aims to understand the condition of the coast towards the factors that influence it, such as wave height, wave angle of arrival, beach area, depth, and groin. The study used synthetic beach conditions data. Furthermore, changes in shoreline caused were modelled with one-line models using numerical method solutions. Modeling results show that shoreline changes increase with time, and are strongly influenced by wave height, wave angle and the distance of waves breaking to the beach. Changes in the coastline are also influenced by the location of the beach structures, the structures of the beach that are parallel to the coast will provide better results to prevent the coast than the structure located off the coast.
Effect of PMSG+AD hormone variation on the gonadal maturation of Pedih fish (Tor douronensis)
Authors: Rahimi S A E , Nawan A , Hasri I , Putra D F , Ichsan R 
Published: November 2019

AbstractPedih (Tor douronensis) is a freshwater fish that live in mountainous areas and swift rivers in the interior of Aceh. The aimed of this research was to analyze the dosage of PMSG+AD hormone orally for the gonadal maturation of pedih (Tor dauronensis). This research was conducted at technical implementation unit of fish breeding center Lukup Badak, Pegasing district, Aceh Tengah on Febuary to March 2018. The method used was Completely Randomized Design (CRD) with 4 level of treatment and three replications: 0 ml/kg feed, 0.3 ml/kg feed, 0.5 ml/kg feed and 0.7 ml/kg feed. The result of ANOVA test showed that different dosage of PMSG+AD hormone orally showed significant effect on the weight of broodstock, relative weight, gonad maturations index, eggs diameter, and relative eggs diameter. The result of Duncan test showed that the best dosage was found 0.7 ml/kg feed, but this treatment was not significantly different with the dosage of 0.5 ml/kg feed.
Reducing Environmental Degradation in Kampung Nambo by Cutting the Critical Contamination Points
Authors: Dewi O C , Ellisa E , Aisyah  , Chairunnisa I , Asyera E 
Published: November 2019

Abstract
Kampung Nambo is one of the densest kampung in South Tangerang, Banten Province, Indonesia. This kampung has direct boundary to the state-owned Landfill, the Cipeucang Landfill. Apart of the mountainous waste panoramas and the continuous odours that can be seen and smelled all day from the kampung, this kampung has beautiful landscape scenery and many potential to develop further towards a livable kampung. The inhabitants in Kampung Nambo are witnessing environmental degradations happened in their area, including on its spring water quality that serve as one of the clean water sources for the community. This paper describes about community engagement program activities in one area in Kampung Nambo especially in region 03/04. The program aims to facilitate the community in finding ways to decrease the environmental degradation. One of the interventions was done trough sanitation aspect. The program found 7-8% of the community still apply open access from their toilets to the river. It gets the area and river even more polluted. This paper described about the action of reducing environmental degradation due to above conditions by cutting the critical contamination points. As further intervention, a new location for wastewater treatment plant was identified.
Determination of Modulus of Dynamic Elasticity of Wood Using Ultrasonic Pulse Velocity Testing
Authors: Darmono  , Ma’arif F , Widodo S , Nugroho M S 
Published: November 2019

Abstract
In the present times, Non Destructive Tests have been applied in many quality evaluations of existing wood structures. One of the Non Destructive Tests (NDT) is based on Ultrasonic Pulse Velocity (UPV). The use of UPV method among others are to estimate the strength of wood, the grade of wood based on Specific Gravity as well as elastic properties of wood. This research will apply the NDT technique. This research used 15 wood test samples in five groups, which were reference Teak (code JT), Yellow Ballau (BK), Camphor (KP), Coconut (KL), and Breadfruit (SK). Those samples were of 100 mm in width, 60 mm in depth, and 500 mm in length. The Ultrasonic Pulse Velocity(UPV) test was conducted with indirect test method. The test result showed that the objects test of Teak, Yellow Ballau, Camphor, Coconut, and Breadfruit are 5,65 km/s, 6,34 km/s, 6,12 km/s, 4, 72 km/s, and 4,94 km/s. Result also showed that Dynamic Modulus of Elasticity (MOEd) for the objects test are 144683 kg/cm2, 314101 kg/cm2, 173973 kg/cm2, 160094,64 kg/cm2, dan 73157,74 kg/cm2.
Extraction of Open Street Map to Produce Digital Maps
Authors: Marsudi Ilham 
Published: November 2019

Abstract
This study intends to be able to find out the results of a digital map format shape file using the Open Street Map tool in ArcGIS, to be able to produce a digital map is done by extracting data on the Open Street Map. How to extract is done by installing an additional ArcGIS Editor program for Open Street Map in ArcGIS 10.3 and extracting it so that it produces a digital map in the geodatabase format, then converts it to the shape file format using the conversion tool. There are two conditions in the selected area, namely the city area to represent densely populated villages and vice versa, as well as the mapped area coverage, both broad and narrow. The digital map of shape files produced consists of points, polylines, and polygons. Coverage of areas with a scale smaller than 1: 10,000 for urban areas cannot be extracted, whereas in rural areas it can. But on a scale of 1: 5,000 you can. Thus besides the area of building density also determines whether or not the area is extracted (mapped).
Student’s Perception on Pedestrian Path Comfort in Yogyakarta State University
Authors: Masyita N , Sativa  
Published: November 2019

Abstract
Pedestrian path is an important element for outdoor activities in urban environment, as well as in campus area. Yogyakarta State University (YSU) is a campus which is still in progress to develop its physical environment, includes pedestrian areas. The research aims to study student’s perceptions in using pedestrian path in campus area, especially in comfort aspects (direct route, line safety, and line clarity). This study uses a descriptive qualitative method by giving questionnaires using google form application to students. As a result, it is concluded three comfort indicators of student’s perception on their campus pedestrian. First, the degree of achievement for experience indicators is 70.61%; it means that the experience indicators giving a good influence on the perceptions of YSU students. Second, the indicator of attraction is 80.85%, shows a very good influence on the perception of the students. Meanwhile, indicator of expectation is 76.86%, it means that the expectation indicator giving a pretty good influence on the perception of YSU students on the comfort of pedestrian.
Implementation of “green” economy principles in the forest sector
Authors: Yakovleva E A , Subhonberdiev A Sh 
Published: November 2019

Abstract
This work focuses on the principles of green economy in relation to the role of the forest sector in combating the effects of climate change. The threat to humanity comes from deforestation and forest degradation, leading to an increase in global carbon dioxide emissions. It is indicated that the implementation of the “green” principles of forestry development is aimed at reducing carbon emissions, efficient use of resources and social integration. The key elements of the developed mechanism are institutional and economic tools, “green” principles, indicators and a set of measures for the preservation and increase of natural capital, carbon sequestration, prevention of loss of ecosystem services and biodiversity, income growth and employment. Green economy is an important subsystem of sustainable development that integrates low-carbon, resource efficiency and social welfare. It has been proven that criteria and indicators are an important tool for the implementation of forest policy. Introduction of the green economy principles in the forest sector is aimed at fulfilling international obligations, introducing a system for regulating greenhouse gas emissions, obtaining additional income from tax collections, land rent, protecting the interests of all stakeholders, including the population and forest workers, efficient use of resources forests, taking into account the value of ecosystem services when making decisions.
Recreational loading as a factor of changes in the process of moisture ground soil in protected natural territories of the Black Sea coast of Russia
Authors: Khalikova O V , Isyanyulova R R , Muftakhova S I 
Published: November 2019

Abstract
The article presents the results of studies on how the unsystematic impact of recreational loads leads to deterioration in the soil cover of the Black Sea coast. The impact of anthropogenic factors leads to severe degradation of the soil cover and greatly changes the level of soil moisture reserve. The objectives of the study included studying the composition of soils in the forest territories of the Novorossiysk, Gelendzhiks, Abinsky, Afipsky forestry, analysis of the properties and condition of soils, and the assessment of various indicators as a result of the impact of recreation. The main problem in the conditions of recreation is the decrease in thickness and fertile layer in forest soils of the Black Sea coast due to trampling and degradation of the litter. The main quantitative indicators of damage to the soil cover during recreation affects the dynamics of soil moisture are presented in the tables 1 and 2, where the soils in the pine and rock oak formations (the main forest-forming species of the Krasnodar Territory). The scientific novelty of the work lies in the fact that studies of the state of forest soils under conditions of increasing recreational loads are rarely carried out. Scientists and forestry workers study the soil as a biological source for the growth of woody plants in various types of soils. Novelty is that the study of soils is carried out not only under conditions of recreational stress, but also in mountainous terrain.
Improving the principals of forming the strategy of the technological development for timber enterprises
Authors: Pokonov Aleksandr , Belyakov Gennady , Pokonov Andrey 
Published: November 2019

Abstract
Currently, the most of enterprises of the global timber industry undergo significant changes in their structure due to the introduction of new innovative technologies into production processes. As a result, the established production and cooperation ties are drastically transformed. Currently, little attention is paid to research into the issue of technological development of timber industry enterprises, as well as strategic management of this process. The purpose of this study is to elaborate the theoretical and methodological frameworks for the strategic management of technological development of timber enterprises. The methods of system, comparative and logical analysis, and scientific forecasting are used. The indicators of technological development of timber industry enterprises in the Krasnoyarsk Territory are analysed. The necessity for the medium- and long-term technological development strategy for a private enterprise of the timber industry is justified. The basic principles of forming a technological strategy development for private enterprises considering current trends in global timber industry are presented.
Numerical Studies on the Effect of Boundary Conditions for a Simply-Supported Plate
Authors: Suvorov Alexander 
Published: November 2019

Abstract
In this paper we analyze a simply-supported plate under the action of transverse uniform pressure. The Mindlin theory of moderately thick plates is used for analysis. Different boundary conditions are considered at the edges of the plate and their effect on the solution, in particular, shear forces, is studied. Only finite element results are presented.
Thin Spherical Elastic-Plastic Shells under the Action of Concentrated Loads
Authors: Astakhova Avgustina 
Published: November 2019

Abstract
Thin isotropic rotation shells of constant thickness taking into account the appearance of plastic deformations under the local loads are considered. The method of running with discrete orthogonalization is used for the numerical realisation of the present problem. Thin spherical shells with the angle 90 degrees and the relation of the radius to the thickness 100 under local load are considered.
Modelling and Stability of Cylindrical Grid Shells
Authors: Siyanov Alexander 
Published: November 2019

Abstract
The constructive forms of the lattice surfaces are analyzed and the rational system of the cylindrical shell is chosen. The grid with cells having longitudinal, transverse and diagonal rods was studied. The use of nodes with a rigid connection of elements was taken into account. The features of the stability loss of cylindrical mesh shells within the given geometric parameters are determined. The regularities of systems behaviour under the action of operational loads are founded. It is revealed that with the increase of span and other sizes the coefficient of stability margin of the structure decreases. The forms of the possible onset of the critical state of the shells with increasing imposed load were obtained.
A New Algorithm for Size Optimization of the Truss Structures with Buckling Constraint using Finite Element Method
Authors: Bich Quyen Vu Thi , Khanh Cao Quoc , Thuy Van Tran Thi , Khoa Dao Ngoc , Truc Thai Phuong 
Published: November 2019

Abstract
This paper proposed a way to solve the problem of the optimum size of the truss, taking into account the local buckling constraint of compression elements of the truss. The consideration of dynamic constraint for buckling increases the complexity of the iterative algorithm to solve the truss optimization problem, because the dynamic constraint expresses condition involving the cross-sectional variable. The author has established an iterative algorithm to optimize trusses with stresses constraints (under strength conditions for tensile elements, buckling conditions for compression elements) and displacements. The iterative algorithm is established based on the correlation coefficients of internal forces between elements. The constraints of the problem are established on the basis of the results of internal forces, displacement and governing equation by finite element method. Based on the established algorithm, the authors had written the program to solve the optimization problem of plane trusses with 10 and 17 elements, spreading the space trusses of 25 elements. Comparing the results of weight optimization of the trusses by the proposed method of this paper with the results based on genetic algorithms, there is no significant difference, especially when increasing the number of elements, the weight of the truss calculated by the author’s method is significantly smaller.
Determination of Member Connection Stiffness For Semi-Precast High-Rise Building
Authors: Thuy Van Tran Thi , Kien Nguyen Trung , Thinh Do Tien , Quyen Hoang T.L. 
Published: November 2019

Abstract
Currently, in Vietnam, the semi-precast high-rise buildings are popular construction structures because of material saving and low construction cost, meeting the requirements of a part of residents with medium and low incomes. However, in the assembly process of these structures, the technical requirements for the connections between prefabricated components as well as between prefabricated components and monolithic components are very important and required a proper analysis. Accurate modeling is very important in structural analysis, as well as analysis of behavior for high-rise semi-precast buildings, especially when they are in the possible earthquake areas. In order to be able to model the real structure, the value of connection stiffness between the components needs to be determined relative correctly. The paper presents how to determine the member connection stiffness of semi-precast high-rise buildings using the finite element method. Verifying the correctness of the member connection stiffness value is carried out through dynamic parameters such as natural frequency and the damping ratio obtained by the experiments of the miniature model of semi-precast high-rise buildings on shaking table test. From there, some comments and recommendations on the suitable model for semi-precast high-rise buildings will be proposed for analysis of these structures more accurately.
Modelling of Multi-Storey Frame Interacting with Rigid Core of the Building
Authors: Kacprzyk Zbigniew , Czumaj Przemysław 
Published: November 2019

Abstract
Impact of bar incompressibility assumption on frames has been analysed in this paper. It has been shown, that in some cases of high buildings, where rigid core is surrounded by set of bars, assumption of columns incompressibility is justified. With compressible bars, significant bending moments occurs on beams connected to core of the building.
Aerodynamic Stability of Bridge Structures
Authors: Churin Pavel , Fedosova Anastasia 
Published: November 2019

Abstract
Large-span bridges, which are flexible structures, are more susceptible to the wind influence. At the same time, it is necessary to take into account the effect of snow drift and automobile traffic on the stability of the superstructure. As the object of research a metal continuous beam bridge with two parallel independent span structures was chosen. The program of aerodynamic test at the wind-tunnel was given at the paper. The paper presents the test results for the most interesting angles of attack from the aerodynamic point of view. Based on the test results, it was established that it is impossible to speak unequivocally about the effect of snow deposits on the aerodynamic stability of the span. The presence of automobile traffic on the span under study excludes all possible phenomena of aerodynamic instability, for all the flow directions considered.
Uniformity Test of Bored Piles by Method of Ultrasonic Sensing
Authors: Ibatullin Rustam , Shepelev Alexander , Pischulev Alexander 
Published: November 2019

Abstract
The article presents the existing methods of uniformity test of concrete bored piles. These methods include: testing of drilled cores, seismic tests, radioisotope or ultrasonic testing. The best method of these is the end-to-end testing with ultrasound. In this technique, there are no requirements for the rejection of the design. The article presents the accumulated results of tests of bored piles for continuity. Requirements of rejection for testing of bored piles are established. For the rejection of structures, we recommend using are coefficient of variation and the value of the relative deviation of the ultrasound velocity from the mean value.