bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessment of sustainable development of region
Authors: Tamenova S , Satpayeva Z , Sarkytova A , Nurgissayeva A
Published: August 2020

The abstract presents a critical review of the existing approaches to the assessment of the sustainability of the region that defines the development level of the social and economic system. The authors conducted the assessment of sustainability of the biggest region of Kazakhstan, Almaty oblast. The city of Almaty is a city of republican status and is not administratively part of Almaty oblast. The findings showed that in terms of dynamics the development of Almaty oblast as such is characterised as very close to being a sustainable one. Regardless of the fact that environmental and economic subsystems have shown stable growth, the social subsystem has features of instability.
Digitalization of Safety in the Field of Labor Protection
Authors: Sergeenko Yu S , Galkina O V , Zametina T V , Kombarova E V , Petrov D E
Published: August 2020

Modern enterprise safety technologies affect the life and health of people all over the world, as well as the quality of full, clean functioning of the environmental protection system. According to the authors, from a scientific and practical point of view, the project is aimed at solving one of the vital problems at enterprises – it is the safety and security of citizens (workers) in the workplaces, the warning and prevention of accidents at work, the creation of a digitalized mechanism for regulating occupational safety at the enterprise. The authors of the project proposed and justified the introduction of a new scientific direction (concept) - digitalized safety in the field of labor protection, as well as the need to introduce and develop new digital technologies in the field of labor safety. The study developed a system (consolidation, which is required in the ILO Convention) to establish digitalized platform in each state for violations of labor protection, as well as scientific understanding of the mechanism of interaction between the three components (subjects) for labor safety, for global improvement of safety systems at the enterprises.
Substantiation of Ecological Safety Criteria in Construction Industry, and Housing and Communal Services
Authors: Larionova Yuliya , Smirnova Elena
Published: August 2020

In the article the authors attempt to determine the construction industry’s ecological safety criteria. The authors provide an integrated methodological substantiation for ensuring ecological safety in construction. They consider the ecological monitoring system, the criteria and conditions for implementing this system, and the principles of ecological monitoring laid down in ecologically-oriented standards. An analysis of the ecological monitoring system at all stages of the construction product life cycle shows that the confusion prevailing in the regulatory departments impedes the development of ecological investments in construction projects. Therefore, it is necessary to establish an independent structure focused on environmental protection. By transferring maximum power to this new structure it will be possible to quickly solve problems related to ecological monitoring as part of the movement towards the country’s balanced development.
Legal Aspects of Regulating Disturbed Land Reclamaition
Authors: Galanina T V , Baumgarten M I , Koroleva T G
Published: August 2020

The impact of coal mining on the Kuzbass region ecosystem is studied in the article. Large-scale mining have led to land disturbance over large areas. The Coal Industry Development Program, which provides for a significant increase in production, will make the identified problem more important. In this regard, the problem of the coal industry should be solved simultaneously with the restoration of natural ecosystems through high-quality land reclamation. The existing regulatory framework for reclamation is assessed in the article. The mechanism of legal regulation of reclamation of disturbed lands at the regional and federal levels is proposed. Improving the quality of reclamation will be facilitated by the development of a strategy for the restoration of the natural environment, which would be reflected in the Concept of disturbed land reclamation.
Functional Model of Influence of UV-B (TOC) and Climate on Tree Responses
Authors: Bondarenko S L , Savchuk D A , Ustinova I G
Published: August 2020

In the framework of the functional model of the influence of atmospheric parameters on the growth of conifers, it is shown how changes in the level of UV-B radiation, indirectly related to changes in stratospheric ozone, affect the density of annual rings. Phytohormones initiate tree adaptation mechanisms by regulating the growth rate of tree cells. The simulation results showed that there is a strong relationship between the rates of changes in density and total ozone content.
Influence of Water Treatment Plants on the Ecological Situation in Industrialized Regions
Authors: Volkova O I , Zolotukhina N A , Zolotukhin V M , Yazevich M Y
Published: August 2020

The article investigates the most effective methods of water purification necessary for its application in power generating systems. The need for this is due to the need for water purification, bringing it to a quality state that allows it to be used in industry. The most effective modern method of purification is the method of using of ion-exchange resins, since water purified from the mineral elements contained in it (desalting) is mainly used. One of the effective methods of desalting, from an ecological and economic point of view, is ion exchange, based on the removal of inorganic substances, heavy metal ions and other substances from the water. The essence of this method is the ability, with the help of ion-exchange resins, to sorb unwanted elements and their compounds from water. This technology allows to achieve water quality which corresponds to standards (technical norms) in various spheres of consumption. The authors show the influence of various parameters on the efficiency of the ion exchange process in order to improve the quality of desalination and reduction of wastewater. The stages of desalination of process water are considered in order to determine the state of wastewater at different stages. Proposed alternatives is economically and environmentally beneficial solutions to problem with wastewater and analysed ways of regeneration, as well as advantages and disadvantages of switching from once-through regeneration in countercurrent. In the presented designs, when using filters with different regeneration options, positive characteristics of monodisperse resins necessary for water purification in accordance with the requirements of environmental standards are determined.
Territorial Protection Maintenance of the Wildlife Species Listed in the Red Data Book of the Nizhny Novgorod Region
Authors: Bakka S V , Kiseleva N Y , Mizgireva M S , Vandysheva T D , Arefieva S V
Published: August 2020

The paper summarizes the results of the analysis of the territorial protection maintenance of the wildlife species listed in the Red Data Book of the Nizhny Novgorod region. To assess the current state of territorial protection of rare wildlife species the database containing 3599 facts of registrations of the rare wildlife species on approved and projected protected areas of the Nizhny Novgorod region was compiled by the authors. In addition, authors have offered to recognize 5 levels of the protection maintenance: full, good, satisfactory, poor, and absent. Authors have evaluated the scale of changes in the rare wildlife species providing with territorial protection in the XX-XXI centuries as well. The territorial protection maintenance of the rare wildlife species in the Nizhny Novgorod region has grown significantly over the past 40 years. In 2001, the rare wildlife species listed in the Red Data Book of the Nizhny Novgorod region were known to inhabit only 195 protected areas. Now the rare species of animals, plants, fungi and lichens are protected in 227 approved protected areas, and 92 territories are projected for the protected areas establishing. In general, the territorial protection of rare species listed in the regional Red Data Book seems to be satisfactory, but need the significant improvement. It is necessary to create additional protected areas along with continued searching of rare species habitats.
Risk Reduction of Occupation Diseases by Optimization of Schedule of Work and Rest on Example of Workers of Electrolytic Production
Authors: Smirnova N К , Krivobokova V A , Belyakin S К
Published: August 2020

The article considers the actual question of risk estimation of non-evident professional diseases. On the basis of the conducted assessment of the acting schedule of the work of a pot operator of molten salts of one of the departments of the Urals aluminum smelter and determined unaccounted peculiarities of daily dynamics of the behavior of biological processes in the human organism while work scheduling, the authors have developed rational shift schedule, in which the time of a worker’s night shift is maximally cut. The proposed schedule is aimed at preventing accidents and decreasing the risk of occupation diseases of employees. The provided material has a great practical significance as the main principle of the management system of professional risks is health maintenance in the process of production activity.
Long-term Post-fire Monitoring of the Breeding Bird Populations in the Kerzhensky State Nature Biosphere Reserve (Central Volga region, Russia)
Authors: Noskova O S , Kolesova N E , Bokadorova E I
Published: August 2020

In the summer of 2010, about a half of the Kerzhensky State Nature Biosphere Reserve territory suffered from a wildfire. During the 9 following years, monitoring of the bird populations in the breeding season was conducted there. Birds were counted by a route method in 6 main habitats differ in their fire burned types and also in unburned similar habitats. A total of 130 bird species were registered. In the first years after the wildfire impact, bird populations in the habitats affected by different wildfire types were similar according to the Sorensen-Chekanovsky’s index. This similarity increased to 2016. The similarity of the bird populations of burned sites has been decreasing last two years. The species richness changed in different directions. At first study years, the abundance of the breeding bird populations increased both in burnt and unburnt sites, while later this parameter decreased a bit and stabilised. Although interannual changes in indicators are still possible. The bird populations of the unburnt habitats, especially bogs, differ by lower values of indicators for the last five years. The influence of nature-climatic indicators of various months (average the monthly air temperature, the daily amount of precipitation) on the interannual dynamics of the breeding avifauna abundance was noted in only one case, out of 84 indicators. We distinguished the species (e.g. Sylvia communis) recognised as indicators of damaging by fire. Fringilla coelebs was dominant in all habitats studied, but from 2017, Anthus trivialis dominated in the severely burned birch-pine forests and on the raised bogs (burned and unburned). The most intense changes in bird populations were observed within the first five post-fire years.
Electrochemical Water Treatment for the Suppression of the Development of Microbiological Contamination in Technical Water Systems
Authors: Sivolobova N O , Gracheva N V , Zheltobryukhov F V , Selezneva N A , Dorodnikova I M
Published: August 2020

The paper presents the results of integrated water treatment with an electric field and hydrogen peroxide, which makes it possible to suppress the development of microbiological pollutants in technical water systems. The combined effect provides a significant reduction in the content of microalgae and bacteria. Thus, treated water can maintain the achieved quality of neutralization, which makes possible its safe transportation and long-term use in water circulation systems.
Features of Using the Existing Regional Charging Infrastructure in the Transition To Environmental Transport
Authors: Anisimov I A , Gorbunova A D
Published: August 2020

In modern cities, the high level of air pollution from road transport leads to the need to develop and operate new types of environmentally friendly vehicles. Currently, one of these is electric transport. The fleet of electric vehicles is growing rapidly. It necessitates the development of an appropriate charging infrastructure. However, the features of the location of the Russian Federation, which are predominantly low temperatures and variable climatic conditions, necessitate studying the existing charging infrastructure and developing new approaches to calculating the number and location of its facilities. The article presents an analysis of previously performed studies in the field of calculating the size and location of charging stations and a comparative assessment of the operating features of the existing regional charging infrastructure in the Russian Federation. The factors affecting the number of charging sessions were identified. The plan of further research is presented, aimed at calculating the number and location of charging stations in the regions of the Russian Federation.
Genotoxicity Assessment of Bottom Sediments of the Chumysh River Using the Allium-Test
Authors: Khlebova L P , Sokolova G G , Brynzova S E
Published: August 2020

We performed a bioassay of aqueous extracts from the bottom sediments of the Chumysh River near the settlement of Talmenka (the Altai Territory of Russia) using the Allium test. The presence of toxic components that caused a decrease in the mitotic activity of onion root meristem cells was revealed. The frequency of pathological mitoses, significantly exceeding the background value (on average, 16.3 times), indicates the presence of factors with total mutagenic activity in the samples. We found violations of chromosome divergences (emissions beyond the spindle, lagging, running off and premature chromosome divergence), abnormalities of the mitotic apparatus (multipolar, asymmetric, monocentric mitosis, polyploidy), bridges (single and multiple). The prevalence of spindle pathologies suggests chemical contamination of the bottom sediments. Stress factors present in bottom sediments activate adaptive mechanisms of the test-object cells, aimed at maintaining their viability and reliability of the transmission of genetic information to the next cellular generations. Such adaptation mechanisms include the formation of micronuclei and cell polyploidization.
Radon Hazard Assessment in Region with Intense Coal Mining Industry
Authors: Leshukov T V , Larionov A V , Legoshchin K V , Yakovleva S N
Published: August 2020

This paper of the assessment of indoor radon volume activity (VAR) in Leninsk-Kuznetskiy region and its environs is presented. Average VAR was obtained during this study is 294±22 Bq/m3. Areal and linear anomalies of the VAR were found in this territory with epicenters values 1840-1042 Bq/m3. It confirmed in this study that it needs to consider the geological environment of the Kuznetsk coal basin during the construction of low-story buildings. It is providing a basis for study of the underground mining effect on the residential radiological parameters.
The Study of the Environmental Risk of Urban Areas on the Example of the City of Voronezh
Authors: Yeprintsev S A , Kurolap S A , Klepikov O V , Shekoyan S V , Zhigulina E V
Published: August 2020

Studied the regularity of formation of socio-environmental conditions that affect the environmental safety of cities on the example of the city of Voronezh. The results obtained in the course of many years of monitoring studies are summarized in the GIS “Environmental and socio-economic conditions of the city of Voronezh”. GIS consists of a system of hierarchically subdivided sections of databases and thematic mapping tools, reflecting the natural resource potential, socio-economic and environmental-hygienic situation of urbanized territories. The basis is Earth remote sensing data, and official statistics from environmental agencies. For mathematical cartographic modeling, an array of official statistical information was selected for a 20-year period, from 1998 to 2018.
Effect of Heat Treatment of Bronze Powder CuAl10Fe3Mn2 on the Microhardness of its Particles
Authors: Kosarev V F , Klinkov S V , Chesnokov A E , Smirnov A V , Vidyuk T M
Published: August 2020

The purpose of this work is to test the possibility of reducing the microhardness of particles of bronze powder CuAl10Fe3Mn2 by heat treatment. It is assumed that in the future, when obtaining coatings by cold gas-dynamic spraying, the use of less hard bronze particles will lead to more favorable conditions for the formation of coatings with improved characteristics. The conducted experimental studies allow us to conclude that the selected modes of heat treatment of this powder can noticeably reduce the microhardness of its particles (approximately by factor of 1.5). It should also be noted that heat treatment in a vacuum and in an argon medium leads to close values of the microhardness of the particles.
The Effect of Pulsed Electron-Ion Irradiation on Defects in Ceramic-Metal Coatings on Dies for Pelletizing Plastics
Authors: Ovcharenko V E , Ivanov K V , Denisov V V , Teresov A D , Yu B.-H. , Chinakhov D A
Published: August 2020

In the work, on the example of a coating of a metal-ceramic alloy of 50 vol.% TiC / 50 vol.% (Ni-Cr) of the working part of a die for granulating plastics, the results of the study of the possibilities of using the pulsed electron-ion irradiation method to eliminate continuity gaps in the coating in the form microcracks formed during operation of the die through through the cross section. It has been shown that pulsed electron-ion irradiation makes it possible to restore the integrity of metal-ceramic coatings by filling cracks with a melt of a nickel-chrome binder metal-ceramic composition extending to the surface of the coating of cracks to a depth of more than 100 μm.
Design and Application of Technological Complexes in Digital Production
Authors: Kheifetz M , Borodavko V , Gretskiy N , Krechetov A , Blumenstein V
Published: August 2020

The analysis of the current state and prospects for the development of additive technologies of computerized production suggests a new paradigm in its evolution - “Industry 4.0”. It is shown that the processes of additive production, in addition to analyzing the technology for obtaining a product, require the development of information technologies for their modeling. For layered manufacturing technologies, an algorithm is proposed for splitting the product into layers of different thickness, taking into account the angular cutting of their edges. The computer design of the formation of the layer and the subsequent assembly of products of complex geometry in an automated technological complex is considered. The design of the processes of sheet cutting and layer-by-layer assembly, with examples of the formation of products of complex geometry, is considered, taking into account the use of a 5-axis manipulator in an automated cutting complex.
Additional location scenarios of generation capacity with ETAP application
Authors: Patoding Hestikah Eirene , Sau Matius , Rombe
Published: August 2020

This study aims to determine the distribution of electrical power by considering the addition of generating capacity and the addition of networks using ETAP applications. The simulation results show that for the first scenario, the addition of generating capacity is carried out at Barru Bus without the addition of transmission networks, the voltage on bus 36 (Barawaja) stabilizes from 0.92 pu to 1.02 pu, with losses of 17.218 MW and 30.171 MVAR. This shows that power losses have decreased from 18.853 MW and 41.291 MVAR or decreased by 1.635 MW from power losses before the addition of generation in Barru, and the second scenario is the addition of generation at Bontoala and the addition of an express network. The system voltage that previously dropped became stable at the existing tolerance limit. Besides that, there were power losses when adding a generator at the Barru Bus. Thus, the distribution of electricity will be better when there is an additional generation at Bontoala Bus and the addition of an express network in the Sulselbar system.
Application of fuzzy C-means algorithm for basic school clustering in Samarinda city based on minimum educational service standard indicators
Authors: Utomo Karyo Budi , Arbain P , Suminto
Published: August 2020

Quality of service in schools determines the level of success of education service. The minimum service standard or better known as (SPM) in education is one of the references for evaluating the performance of education services. There are six categories in SPM of education, namely facilities and infrastructure, educators and education staff, curriculum, education quality assurance, education assessment, and school management. Each category has an achievement indicator to be used as a reference to assess the achievement that has been done by each school. School grouping based on the Minimum Service Standards (SPM) of Education is expected to be a reference for the government in making policies and references for Education organizers to know their position and then take strategic steps to enter the best groups. One of these groupings is achieved using the Fuzzy C-Means clustering method which is a non-hierarchical Clustering algorithm. The results of the study are expected to obtain a model that stakeholders can use in conducting elementary school groupings based on minimum service standard (SPM) in Education which are divided into 3 (three) categories, namely: Less, Medium, and Good.
Electronic practicum assessment system based on android at politeknik ATI makassar
Authors: Habibuddin J , Suhaebri T , Ainuddin A , Azis M F , Mutmainnah
Published: August 2020

The Practicum assessment conducted conventionally is gradually replaced with an Android-based system. It aims to support the government program of Making Indonesia 4.0. In this research, the electronics practicum assessment is designed using the App Inventor application. The attendance assessment and initial assignment are designed to obtain an objective grade. Attendance assessment is conducted by making a standard assessment form, determining points obtained by looking at the time of arrival. Assessing the initial task was done by making ten multiple-choice questions for each experiment. The initial assignment assessment form was created in Microsoft Excel to make it easier to import, export data to .csv (comma separated values) to enter the database system. The results obtained from 6 types of initial assignment assessment experiments conducted using the application. There were 5 trials that were successfully run, and there was still one error trial.
Blind people’s direction support system using ultrasonic, color sensor with fuzzy logic
Authors: Yanti Nur , Nur Taufik , Hidayati Qory
Published: August 2020

Someone who has impaired vision or blindness has a condition that is susceptible to dangers that are around him such as the presence of animals, vehicles or obstructions. People with visual impairments carry out their activities based on estimates of their feelings. One obstacle that is often faced by blind people is that if they are in a new environment, they must recognize patterns around the environment such as roads, rooms, or certain important places.his research in the form of blind shoe design using ultrasonic, color sensor and Arduino Uno microcontroller, with fuzzy logic, aims to help blind people, especially children who are educated in extraordinary schools so that in carrying out their learning activities do not experience obstacles in recognizing the school environment, such as study rooms or classrooms, toilets and roads that are in the school environment. The method used is experimental, the color sensor can read input in the form of red, blue, green and yellow which is the blind pointing pathway, and ultrasonic can read the distance of obstacles in front of the shoe using an intelligent fuzzy logic system. A pair of shoes uses Bluetooth communication, output in the form of sound through earphones as a guide to the classroom or toilet.
Power factor correction of the industrial electrical system during large induction motor starting using ETAP power station
Authors: Mutmainnah  , Fadli Azis Muhammad , Habibuddin Julianti
Published: August 2020

This paper presents the power factor correction of the electrical system during the induction motor starting using ETAP power station. There are some problems faced by the electrical system when the motor is started, including voltage drop, high insulation current, and low power factor. The starting motor method used in this paper is starting with VFD. The aim of this research is to improve the power factor during the starting time. The system with a capacitor resulted in a low power factor that lowers the quality of electrical power. By adding capacitor 30 kVAR with each step 0.1 kVAR in the system, the power factor increased to 95.5%.
Effect of mixed additions in residual oil to improve the quality of sub-bituminous coal from sangatta, East Kalimantan
Authors: Prista Tyassena Flaviana Yohanala , Ashari Amin Widya
Published: August 2020

Indonesia is well-known for its abundant coal reserves but is included in low-rank coal with a total moisture content of 40%. In the combustion process, this water content will reduce the calorific value so that the use of coal becomes inefficient and not environmentally friendly. The purpose of this study was to determine the effect of added additives to residual oil to improve the quality of sub-bituminous coal originating from Sangatta, East Kalimantan. Variations of additives used include NaOH, HCl, and Pertalite, mixed with residual oil. The results in this study indicate an increase in calorific value in each composition of mixed additives. The best results were obtained for residual oil mixtures with pertalite, which obtained coal with a calorific value of 7204 cal/g, moisture content 16.9%, ash content 3.5%, carbon content 40.7%, sulfur content 0.41%, and flying substance content 38.9%.
Quality test of liquid tofu waste in one of the industries in Bantaeng district
Authors: Aras Neny Rasnyanti M
Published: August 2020

The tofu industry is growing rapidly, along with the increasing number of people in Indonesia. On the other hand, industrial liquid waste contains very high organic compound that potentially pollutes the environment. Without a good handling process, tofu liquid waste can cause a variety of negative impacts such as water pollution, unpleasant odor, and lower aesthetic to the environment. Most tofu industries are run by small and medium industries so that the disposal of its waste is less attention. Liquid waste from the tofu industry can be used to produce biogas through an anaerobic process if it is well processed. The aim of this research is to measure the physical and chemical parameters of liquid waste in one of the tofu industries in Bantaeng by taking samples at three different points. Based on the physical parameters obtained temperature, TDS, TSS, smell and color from three points for Point I are 29.6°C, 1932 mg/L, 7690 mg/L, smelly and white-colored, point II are 27.8°C, 540 mg/L, 1646 mg/L, smelled, murky-colored, point III temperature of 29°C, 510 mg/L, 288 mg/L. Based on chemical parameters, the tofu liquid waste pH, BOD (Biochemical Oxygen Demand), and COD (Chemical Oxygen Demand) for the point I, II, and III in a row are pH (7-7.8); BOD 7.5 mg/L, 3.3 mg/L, 9.6 mg/L; COD 1405 mg/L, 930 mg/L, 370 mg/L. From the parameters that have been measured. It be can be concluded that some parameters for industrial tofu liquid waste is still unqualified to the requirements of the quality standards set by KEPMENLH No. 5 in 2014. The unqualified standards are the TSS parameter and COD so that further research is required in order for the industrial liquid waste can be disposed of to the environment.
Enzymatic hydrolysis of proteins from snakehead-fish (Channa striata)
Authors: Hariyati H , Mahendradatta M , Tawali A B , Langkong J
Published: August 2020

The purpose of this research is to study the characteristics and bioactive components of the production of snakehead fish (Channa striata) protein hydrolysates through enzymatic methods. The enzymes used in this study were the papain enzyme and without the enzyme as a comparison. Substrate used is fresh snakehead fish (Channa striata) obtained from fish reservoirs. Analysis carried out in the form of total degrees of hydrolysis and nitrogen content in protein. The results showed that the use of the papain enzyme was excellent in producing snakehead fish (Channa striata) protein hydrolyzate. The papain enzyme helps break down fish protein into peptides or amino acids.
Development of polishing machine for preparation metallographic specimen with re-manufacturing
Authors: Apollo  , Nur R , Suyuti M A , Madjid M
Published: August 2020

A metallographic specimen should be performed to determine the microstructure of a material. One of the processes of preparation of metallographic specimen is polishing process. The designing and manufacturing a polishing machine will be very helpful in the process of polishing the metallographic specimen. This paper was proposed to design and manufacture a polishing machine for laboratory scale. In this research, several stages of the process are performed, such as designing the model, preparing tools and materials used, making components, assembling and testing the polishing machine. the results obtained are polishing machine that works well and can be used for the metallographic test for students and researchers. it can be concluded that this polishing machine can produce the level of specimen preparation for a metallographic test.
The simulation buoy shape bullet of sea wave energy absorption based on diameter variations
Authors: Jufri  , Paroka Daeng , Jalaluddin  , Tarakka Rustan
Published: August 2020

The use of fossil energy on a large scale to meet energy demand will be a threat to life in the form of air pollution, global warming and threats to the availability of fossil energy. Therefore, researchers feel it is important to conduct research with the aim of studying the potential of new and renewable energy from ocean wave energy absorption using buoys by varying the absorbent diameter of the buoyancy form. This potential is a great opportunity to meet the energy demand in coastal areas and small islands in Indonesia. This study focuses on the potential to absorb buoys carried out in transitional seas with a depth of 5.0 meters, variations in buoy diameter ranging from 1.0 meters to 10.0 meters. The wave force absorbed by the buoy is calculated using the Strip Theory Method including the kinetic force caused by the movement of the buoy. The highest efficiency of buoyancy absorption efficiency was 37.17% for floating buoys with diameter of 2.5 meters and meeting frequency of 1.379 rad/sec and the lowest 36.58% for diameter of 10.0 meters and meeting frequency of 1,463 rad / sec.
Designing a road tool for blind people using the computer minimum system
Authors: Hakim AR , Metandi F
Published: August 2020

This research aims to design blindness devices namely sticks using a minimum computer system, expected to help blind people in their activities and interact with their surrounding environment. This research uses descriptive method, where in the process of conducting research through the stages of Information System development using a waterfall model which is one of the models in the SDLC (System Development Life Cycle). The stages carried out in this study are comprehensive analysis of development needs and System planning. The results of this study are in the form of blind road aids using the minimum computer system. Where after having this system design, it can proceed to the implementation stage
Simulation of generate value for development of biomass plants in Indonesia: a feasibility study
Authors: Safril  , Sumasto F , Wirandi M , Imansuri F
Published: August 2020

The main purpose of this paper is to define the generating value of biomass plants in Indonesia by a feasibility study. It is important to measure the optimal location to build biomass plants in Indonesia. Besides that. the need of supply of electrical energy in Indonesia is always increase in recent years. Based on data. three cities in Indonesia that potential become location to build those biomass plant from total organic wastes to generate total electricity through conversion of methane gas that produced from waste. In this paper. proposed method of feasibility study performed to achieve optimal value in the construction of biomass power plants and the optimal location to implant. The analysis through the data of total electricity generated from gas that calculated on feasibility aspect values on NPV. IRR. and PI. The result show. in three cities of Indonesia produce a positive feasibility value based on value of IRR that greater than 20% tax so that the Government of Indonesia can implementing biomass plants on those three cities
The Link Model of ERP-Usage, Absorptive-Capacity, and Task-Technology-Fit, to Task-Innovation in ERP User
Authors: Baharuddin A Velahyati
Published: August 2020

An ERP system contains millions of information that is useful for its users. The use of an ERP system in an organization is usually mandatory, and users are required to use and understand the workings of an ERP system in completing their routine tasks. As soon as employees complete training classes and ERP systems are used routinely and intensely in their daily work (Go-Live), employees are required to obtain new knowledge or skills from the ERP system that has just been installed and complete their work differently by innovate their way in doing tasks. However, there have been many cases of the ERP system that led to the failure of users to improve their work habits. The purpose of this research is to develop a model that can explain the influence of absorptive knowledge capacity, the ‘fit’ of the technology with the work, and the decision-making process to the task innovation of ERP users. The model was built by adapting the model Task-Technology Fit and Absorptive Capacity of previous studies related to MIS. The collection of the data by a survey conducted on ten organizations ERP system users in Java and Sulawesi. Four hundred questionnaires distributed to 10 organizations ERP users engaged in mining, food processing, banking, public services, telecommunications, and government offices. Three hundred forty-five questionnaires were returned, with 342 questionnaires able to be processed. Data were analyzed using multivariate statistical techniques Structural Equation Modelling (SEM)-PLS. This research has developed a potential model in the role of studying the effects of ERP Usage, Absorptive Capacity, and Task-Technology Fit to Task Innovation in the context of enterprise applications at the level of individual analysis. Reasons and contributing factors were described in the final section of this study.
Knowledge management as a source of innovation and business process development to improve the competitiveness of small and medium enterprises (SMES) in the madurese handicraft souvenir sector (case study: XYZ souvenir)
Authors: Ramadhan D G , Sofiyanurriyanti
Published: August 2020

XYZ Souvenir is one of the UKM engaged in the creative and Madura souvenir craft made of flannelette. The problem faced today is how to maintain the sustainability of SMEs if they have different backgrounds and knowledge that make them have to share knowledge to maintain the sustainability of SMEs. Product innovation, optimization of raw materials, customer needs, target markets, marketing methods, are examples of knowledge that are not all known by each of the internal actors of SMEs. By implementing a knowledge management framework based on four KM conceptual models by Stankosky and mapping the Cimosa business process, which is intended to explore the tacit and explicit knowledge of internal actors related to the sustainability of SMEs. Qualitative methods are used in this study and the data collection model is in the form of interviews. With the implementation of the framework, there are nine critical success factors identified in the craft industry, especially those operating in the Madura region. Determinants of success are Price, Promotion, Packaging, Product Innovation, Online Stores, Product Quality, Finance, Human Resources, Collaborative Sources. In a four-action framework analysis, there are no success determinants that are eliminated because no success determinants are eliminated at an early stage so there is no reduction in the development of SME business processes in the reduction phase. The critical success factor development is carried out on the nine main criteria in the craft industry and creates two additional critical success factors, namely unique and trademark. In mapping, Cimosa’s business processes, the process management phase consists of improving vision and mission, improving objective strategies, improving SOPs, and improving, evaluating, and monitoring processes. Support processes include human resources and IT process, production, and financial process, while the Core Process includes research and development, marketing process, and logistic process.
Working posture analysis on musculoskeletal disorder to workers in the sack warehouse PT Makassar Tene Makassar
Authors: Arminas  , Basri M , Aulia I R
Published: August 2020

PT Makassar Tene is a factory that produces refined sugar from raw sugar. But in the sorting of auxiliary materials such as sacks is still done manually. The process of sorting sacks at PT Makassar Tene uses female workers over the age of 40 years. The conditions of work attitude carried out by some female workers are still many that are not ergonomic. The wok attitude is sitting, standing, hunchback and lifting weights more than a maximum burden that is tolerated by a woman’s body which is 10 kg if done continuously. Pain complaints have been felt by workers due to inappropriate work postures, in the form of pain in the hips, waist, knees, shoulders and upper arms. The existing problems need to be evaluated on physical factors in sack sorting activities by identifying and analyzing the overall work posture. The methods used are OWAS and REBA. Both of these methods are able to define the movement of all parts of the worker’s body so that it can improve overall body movement. Therefore, this study carried out observations to determine the level of risk caused by work posture when carrying out sack sorting activities by comparing the OWAS and REBA methods in female workers PT Makassar Tene. Based on the results of the study, it is known that there are several identified sorting activities of sacks at risk for musculoskeletal disorder (MSDs) in female workers. The activity are the process of lifting sacks to a pallet with a level of risk from slightly dangerous to very dangerous in the OWAS method and from medium to high in the REBA method. And the process of arranging sacks with a level of risk is very dangerous in the OWAS method and medium to high in the REBA method. So that it is necessary to improve the posture of the worker as soon as possible, especially in the activities of lifting and arranging sacks.
Mixed matrix membrane of alginate zeolit crosslinked by PVA for separation of CO2/CH4
Authors: Al Adawiyah Syardah Ugra
Published: August 2020

Mixed Matrix Membrane Alginate Zeolite Crosslinked by PVA for Separation CO2/CH4 was studied. Alginate/Zeolite/PVA mixed matrix membrane were prepared by solution casting. The research started by synthesis of Alginate/Zeolite/PVA membrane. The PVA 0.1% crosslinking alginate zeolite membrane (1:0.2) wa successfully synthesized. The membrane were characterized by Fourier Transform Infrared (FT-IR) and Barret Joyner Hallenda (BJH). The membrane permeability and selectivity of CO2 and CH4 were investigated. The effect of zeolite on the performance and the thickness of membranes of gas separation were analyzed. The result of permeability and selectivity show that membrane can flow CO2 and resist CH4. The effect of zeolite mass increasing on permeability of CO2. The thickness of membrane influenced the flux of CO2 gas. CO2 permeability increased simultaneously with a decrease of a membrane thickness. According BJH result, pore diameter of membrane is 3.54 A, while kinetic diameter of CO2 is 3.3 A and kinetic diameter of CH4 is 3,8 A. This was explained performance of membrane was molecular sieving.
Worker fatigue in silo tower due to hot climate
Authors: Nurwahidah A , Bakri I , Mulyadi  , Kelah N Ester
Published: August 2020

The Tower Area at PT Eastern Pearl Flour Mills, which is located on the jetty, causes workers who are directly exposed to the reflection of sunlight. A hot work climate increases the physical fatigue of workers which can be measured by the strength of the handle and the stimulation reaction time. This research was conducted to identify the working climate conditions in the Tower area of PT. EPFM, conditions of work fatigue of workers and the influence of a hot work climate with work fatigue of workers. The linear regression method is used to determine the relationship between hot work climate and work fatigue. The hot working climate including ISBB and humidity respectively become independent variables or predictor variables while handheld strength and reaction time are dependent variables or response variables. Statistical test results with linear regression obtained ISBB and humidity significantly influence the decrease in the strength of the dominant hand grip (Sig. 0,000). ISBB and humidity significantly influence the decrease in the non-dominant grip strength (Sig. 0,000). ISBB and humidity significantly influence the increase in reaction time with regular stimulus (Sig. 0,000). ISBB and humidity significantly influence the increase in reaction time with random stimulation (Sig. 0,000). Recommendations that can be suggested to companies are the provision of mineral water and isotonic water and rest areas to support the recovery process, as well as provide information to workers about the effects of working in a hot environment.
Determination of lead time arrival of raw materials optimal vannamei shrimp at PT. XYZ Makassar
Authors: Haming Puadi , Awaliyah Rizqa
Published: August 2020

Inventory control is the efforts made by a company so that the production process can be optimally fulfilled with the smallest possible risk. The problem of raw material requirements and costs incurred for the production process is very important, because with the existence of raw materials the production process can run smoothly. This study aims to determine the amount of economical Vannamei shrimp raw material inventory and to know when the order should be done with PT. XYZ Makassar. Where the need for raw materials in 2017 was 1,855,558 kg. Therefore, companies must control the supply of raw materials that are economical and efficient in order to meet the production process for each specified period, determine the optimal waiting time for the arrival of raw materials and determine the quantity of orders that are economical. Based on the results of research determining the optimal waiting time for arrival of raw materials at PT XYZ Makassar using the Economic Order Quantity (EOQ) method, obtained an economical raw material inventory of 20,672 kg per message with a total inventory cost of Rp.136,586,577 each time message. With the Stock Out Cost (SOC) and Extra Carrying Cost (ECC) method, the optimal waiting time for arrival of raw materials is 3 days with a minimum cost of Rp. 1,836,979,830 and with the Reorder Point (ROP) method, the results of the order are made again at the level inventory in warehouse 18,555 kg.
The effect of top roll defects on dyh5000 toyoda hara finisher draw frame on sliver unevenness at pt xyz
Authors: Subakdo W A
Published: August 2020

PT. XYZ is one of the spinning companies that produce cotton carded and Rayon yarn. One of the machines used in the yarn spinning process is the finisher draw frame. In the finisher draw frame process, slivers was produced. To maintain stability of the resulted sliver remain standard, it is necessary to check the sliver number (Ne1) and unevenness of the sliver (u%) with the uster uneveness tester tool. On the finisher draw frame, problems were often found, one of these was unevenness value (u%) that exceed the standard. The purpose of this study was to see the effect of top roll defects on unevenness (u%) and how to overcome these defects. After observing the sliver and testing it on the finisher draw frame, the slivers was tested using an uster unevenness tester 4. The results were not in accordance with company standards, which are 2.50% to 2.90%. The causes of the defect include: lapping material, use of equipment during lapping cleaning. To overcome the problem of defects, repairs were made by grinding the top roll or replacing it with a new top roll. After repairs or replaced with a non-defective top roll, the result is 2.82% and 2.88%
Effect of government regulation on labor competitiveness: Study of nine major Indonesian companies
Authors: Aris A A , Asmal S
Published: August 2020

Free trade that drives competition in the industrial world drives the need for welding power by 45,000 against a background of specifications. Indonesia has a professional welding force of no more than 15,000 people spread across various countries triggering a deficit in domestic labor that should handle infrastructure development, sea tolls, power plants, and railways. The problems currently being faced by the industry in the context of increasing the competence and competitiveness of the welding industry workforce. The study purposes to analyze the effect of government regulation to labor competitiveness. This research was conducted in November 2016 - March 2017. Data obtained through interviews with 117 respondents distributed in 12 government companies with purposive sampling approach. Data statistical analysis technique is using Structural Equation Modeling. Government Regulation significantly and positively influences the competitiveness of workers with structural coefficient is 0.450 and p-value < 0.05. Indonesian Government can provide added value to the competitiveness of Indonesian workers through the use of authority to draw up regulations in the field of welding, set standard operational production and assist the recruitment process of workers.
Effect of knowledge management on performance: A case study at PT. Eastern Pearl Flour Mills Makassar
Authors: Rapi A , Baharuddin A V , Shabrina M P
Published: August 2020

This study aims to determine the effect of Knowledge Management on the performance of maintenance department employees at PT. Makassar Eastern Pearl Flour Mills and to find out which Knowledge Management indicators are most influential on employee performance. This study uses the statistical application IBM SPSS 21. The population in this study is employees at PT. Eastern Pearl Flour Mills Makassar, amounting to 78 people. The collection of data is done by using a questionnaire. 78 questionnaire were handed out with 65 questionnaire are valid. The data were processed using multiple linear regression analysis technique. The results of the study indicate that there is the influence of the variable Knowledge Management which consists of Personal Knowledge (X1), Job Procedure (X2), and Technology (X3) against the performance of the employee (Y) with the value of the coefficient of determination of 0.286. Analysis of the data do indicate that the variable Personal Knowledge of the results of the t test for 0.3562 is the most giving effect compared with other variables.