bluuebunny/crossref_metadata_2025_split huggingface dataset:
Simulation the operation of a combined-cycle gas turbine unit with an after burning device in a waste-heat recovery boiler
Authors: Mendeleev D I , Marin G E , Akhmetshin A R 
Published: November 2020

Abstract
One of the directions in the development of energy is the study and implementation of combined cycle plants. It is possible to solve a wide range of design and operation problems using mathematical models. A steam-gas power unit based on a GE 6FA gas-turbine unit was studied in this work. In this case, we considered a modernized thermal circuit with an afterburner. In this paper, we consider the method of parametric identification of a mathematical model of a gas turbine in a steady state. The steady-state is taken equal to 80 MW. The difficulty of creating mathematical models of combined-cycle power units is the organization of the computational process. Schematically, the structure of a mathematical model can be represented as a hierarchical set of software modules. The upper-level modules, based on the input data, organize a computational process that includes the organization of calls in the required sequence to the lower level modules in order to form a system of equations that determine the conditions for the combined operation of a combined cycle gas turbine unit. Dependences of changes in the main energy characteristics of a combined cycle plant are shown. Studies have shown the feasibility of using afterburning devices in the cycle of a combined cycle plant.
Internet technologies in medical projects’ funding
Authors: Ryzhkova M V , Gimrikh K N 
Published: November 2020

Abstract
In modern society, it is difficult to imagine a scope of activity that would not be associated with Internet technologies. They provide opportunities not only to activate the information resources of society, but also to organize information interaction between people, that certainly helps in promotion of scientific projects cost-effectively. However, it is often the case that many projects, ideas and research programs remain at the development stage. Initially it is very important to determine what exactly are the final goal and the main advantage of the project. Only then, after defining the specific tasks it will be possible to identify stakeholders who can bring funding in the project. In the article we analyze different ways of search for funding of medical projects like crowdfunding, investment funds, and government resources. The problems of the use of crowdfunding in fundraising for medical and clinical research are analyzed. We came to two conclusions. Firstly we suggest inviting graduates who specialize in innovation promotion in this process and reveal some benefits for both students and scientists/business. Secondly, we propose the concept of digital services connection, which can make crowdfunding of medical research a safe and effective means of developing domestic medicine.
Analysis of the influence of the installation of a dishwashing machine on household energy sources consumption in urban power supply systems
Authors: Shvedov G V , Voronkov D A , Myasnikova E M , Demidenko A S , Kudelina S A 
Published: November 2020

Abstract
The subject of the research is the interconnection between the installation of a dishwashing machine in a household and the change in consumption of such primary resources as electric energy, cold and hot water. Applicability of this research is defined by the high growth of various electric appliances in the households, and the dishwashing machine has one of the highest tempos of the increase over the last decade. The results of this research allow esteeming the future change in the structure of consumption of energy sources by the households in terms of mass implantation of dishwashing machines in our daily life. Several methods of estimation have been reviewed of how the installation of the dishwashing machine impacts on energy sources consumption in the household. Mathematical descriptions and the rationale for the statistical data analysis methods of household energy sources consumption, which were used are explained. Based on the analysis of statistical data over 5 years before the installation of the dishwashing machine, the consumption of the sources is forecasted for the sixth year upon condition that there is still no dishwasher. At the beginning of the sixth year, the dishwashing machine was installed in the observed household. Forecasted values of household sources consumption for the sixth year have been compared with actual values which were obtained after installation of the dishwasher in the household.
The basic principles of creating an information model in PDM-systems as a means of vessel lifecycle management
Authors: Dushko VR , Nesin D U , Tihonchuk A V 
Published: November 2020

Abstract
This article focuses on approaches based on shipbuilding simulation such as digital shipbuilding, simulation-based design, and virtual shipyard. The approaches to the construction of the lifecycle Electronic Information Model of a Ship (EMIS) for the vessel design and construction are considered. The principle of creating an electronic information model as a basis for a vessel’s lifecycle is considered. The necessary initial technical requirements for the of an electronic information model creation are discussed. In the process of creating an electronic information model of shipbuilding products at all lifecycle stages, a concept of the information model of the product was developed. Analysis of the tools (software) that are currently on the world market was carried out by the authors to implement the above concept of creating the information model. The expert analysis indicates importance of selection of the EIMC structure type before initiation of implementing the lifecycle of a particular ship, provided that PLM systems are used.
Factory subclasses relevant to Industry 4.0 challenges
Authors: Gurjanov A V , Shukalov A V , Zharinov I O 
Published: November 2020

Abstract
The practical probation results of the different future factories options innovative business strategies created today sufficient conditions to form the industrial companies second echelon (subclasses). Some future factories subclasses families are proposed and based on the business company models differentiation. There are varieties of services, sharing, system and study factories as the smart factory subclasses. There are varieties of open, pilot, creative and framework factories as the digital factory subclasses. There are varieties of cluster, client, route and recycling factories as the virtual factory subclasses. There is a similar scheme for all subclasses types of families. All factories subclasses are additionally grouped in the speciality of their business strategies. In essence, the satisfaction of customized consumer requirements or manufacturer market trading offers provision, which is equally actual for Industry 4.0.
Tools for business processes simulation in rocket and space industry
Authors: Kukartsev A V , Kukartsev V V , Tynchenko V S , Cherepanov A I , Kurashkin S O 
Published: November 2020

Abstract
The article presents a set of tools for improving the system of enterprise business processes using computer-modeling methods. The widespread functional approach to management, based on the old paradigm, in recent decades, has ceased to correspond to the new economic conditions. The rocket and space industry enterprises entered the world market for high-tech products, and therefore the importance of effective methods for modeling business processes in a market economy determines not only the competitiveness of the organization but also often solves the issue of the survival of domestic enterprises in the conditions of fierce global competition.
Development of a modular interface of the computer support system for aircraft design
Authors: Borgest N M , Vlasov S A 
Published: November 2020

Abstract
The article summarizes the experience in the field of education of the designer’s aircraft with the support of modern information systems, programming languages, databases and knowledge. We consider the problem of interface design assistant job designer based on thesaurus of subject area. We present the existing type of the interface work of the designer and its possibilities. Further ways of development of the program, communication and interaction with the thesaurus of the subject area are considered. The conceptual description of the model of ontological support of the intelligent assistant of the robot designer is shown.
Modern virtual laboratory for aggregate and assembly works using VR technologies
Authors: Govorkov A S , Bozheeva T V , Lavrenteva M V 
Published: November 2020

Abstract
Today in the production sector all industries are trying to reduce costs while improving product quality. This is a quite ambitious purpose. However, current advances in technology provide such a necessary step towards making significant improvements in the standardization and general practice of complex processes. Making steps simpler, using different visual cues and a quality assurance system, a virtual reality system can provide greater flexibility in production without any additional risk of making mistakes. Its unique feature is the ability to simplify the diverse complex tasks associated with modern assembly and production processes, reduce risks and bring to life products that are part of the new 21st century.
Simulation-dynamic model of the details manufacturing process in the workshop
Authors: Baryshnikova O V , Kukartsev V A , Tynchenko V S , Kukartsev V V , Mymlikov V N , Dzhioeva N N 
Published: November 2020

Abstract
The article discusses the construction of the simulation-dynamic model of the manufacturing details process in the workshop. As part of the production process, the workshop prepares workpieces, performs processing operations and packaging of details, as well as controls defective workpieces during processing operations. The model is built, taking into account the percentage of defect probabilities during the operation. It also shows the work process of the enterprise workshop for 8 hours. A model management interface was created, which includes an input interface through which data is entered, as well as an output interface that allow seeing the results of the work done. On the grounds of the conducted experiments, conclusions were drawn regarding the available data, a comparison of the experimental results was carried out, as well as illustrating how the model visualizes changes in the manufacturing process of details in the workshop.
Seed pod formation and development in rose breeding
Authors: Fibrianty E , Kurniati R 
Published: November 2020

Abstract
Genetic variation of rose was obtained through conventional breeding. The successful rose breeding depends on the compatibility and incompatibility between parents. The objective of the study was to find some information about compatibility and incompatibility in rose crossing. Some varieties of roses, i.e., Mohana, Sexy Red, Valery, Black Magic, Cold water, Putri, Mega Putih, and Luna, were used as breeding materials. The Average of pod seed formation was about 11.66 until 13 days after crossing. The crossbreeding of Mohana and Luna was obtained for 11.66 days after crossing. It was the shortest time of seed pod formation among other varieties of crossbreeding roses. The total number of crossing was 266, in which 19 crossings were successfully producing seeds and fertile. Seed pod formation was taking time 104 until 131 days after crossing. The failure of seed pod formation in rose might because of crossing incompatibility, in which it appeared on 55 – 106 days after crossing.
Shading tolerance of some rice genotypes under the artificial shade net
Authors: Lestari A P , Hairmansis A , Mulyaningsih E S , Sulistyowati Y 
Published: November 2020

Abstract
Deficit light led to the reduction of photosynthesis and carbohydrate synthesis for upland rice plants in the plantation area. This experiment aimed to screen some germplasm rice shade-tolerant levels, local rice varieties, and high yielding rice and promising lines further generations. The experiment was conducted at Muara Experimental Farm, Bogor starting in April 2017. A total of ± 200 rice lines and comparative varieties, i.e, Jatiluhur, Rindang 1, Rindang 2, IR64, Inpago 5, and Kalimutu, were tested below paranet ± 60% light interception and without shading as control. The augmented design was used as an experiment design with four replications for the check varieties. Result showed that light intensity affected the growth and development of plant rice lines. There were 23 lines detected as tolerant and 11 lines as moderate of 200 tested lines. The plant height in shade and control areas was not different, whereas the number of tillers in gogo shade had a much less amount than in control treatment. The flowering phase at shade caused a decrease in the formation rate of the flowering phase in rice lines. Therefore, the flowering age became longer without shade. Leaf chlorophyll content of lines in the shade treatment was lower than in control.
The potential of using agricultural waste: Corn husk for particleboard raw material
Authors: Prasetiyo K W , Zalukhu L , Astari L , Sudarmanto  , Akbar F , Hermawan D 
Published: November 2020

Abstract
The development of manufactured particleboard using non-wood raw materials has been significant due to the decrease of wood as the main raw material for the particleboard industry. In this study, corn husk, an agricultural waste, was used for experimental manufacturing of particleboard bonded with natural and synthetic adhesives. The influence of adhesive types and concentration on the physical and mechanical properties of particleboard were investigated. The synthetic adhesive types used were urea-formaldehyde (UF) and phenol-formaldehyde (PF) with 8,10 and 12 wt% adhesive concentration. The natural adhesive used was citric acid with 15, 20, and 25 wt% adhesive concentration. The target density of particleboard was set at 0.80 g/cm3. The boards were manufactured at a pressing temperature of 130°C for UF, 150°C for PF and 200°C for citric acid, pressing time of 10 minutes, and 2.5 MPa for hot-pressing pressure. Generally, this study confirms that types of adhesive and adhesive concentrations influence the properties of particleboard. Results show that particleboard with citric acid adhesive has better physical and mechanical properties than particleboard bonded with UF and PF adhesives.
Tracking optimum temperature for germination and seedling characterization of three millet (Setaria italica) accessions
Authors: Setyowati N , Lestari P , Wawo A H 
Published: November 2020

Abstract
The research was conducted at the Plant Physiology Laboratory of Research Center for Biology LIPI. The study aimed to provide information about the prediction of millet plant distribution based on temperature for germination. The experiment was arranged based on factorial RCBD. The treatment consisted of two factors, namely accession (Polman, Gambirmanis, and Enggano) and germination temperature (10, 20, 30, and 40°C), with three replications. The seeds were germinated in Petri dish. Each millet accession had distinctive characters. The color of the de-husked grain affected the color of flour, influencing the quality of end-products. The grains color of Accession Polman was white, Gambirmanis had grey color, and Enggano seeds were yellowish. The optimum germination temperature for three millet accessions was: Polman seeds obtained optimum temperature at 40°C, Gambirmanis possessed optimum temperature at 20 – 30°C, and Enggano had the optimum temperature at 10°C. Millet seeds produced a high percentage of germination and the best in seedlings grown at optimum temperature. At this temperature, accession Polman had the best sprout performance overall. Millet seed germinated at the higher temperature (40°C) appeared to be seized, with a low growth rate, except for Polman. It is assumed that millet would be adapted well in the lowlands to highland based on its germination temperature requirement. However, this plant grew optimally in the lowlands with a germination temperature of 30 - 40°C. Conservation of millet species could be done through seed storage with low temperature and humidity.
Antibacterial activity of isolated compounds from the stem bark of Calophyllum euryphyllum
Authors: Abbas J , Minarti  
Published: November 2020

Abstract

Calophyllum euryphyllum Lauterb (Clusiacea family) has the potential as material for medical industries. To continue our drug discovery of the Indonesian plant, we chose C. euryphyllum species for antibacterial sources. Semi polar extract from C. euryphyllum was prepared and purified by column chromatographic methods and then identified by spectroscopic methods (LC-MS-MS, IR, UV, and 1H-NMR and 13C-NMR). The pure isolated compound was subjected to antibacterial activities by using E. coli. S.aureus, and B. subtilis. Semi polar fraction of C. euryphyllum showed the antibacterial activity against E. coli. S.aureus and B.subtilis with MIC about 2.05%, 2.82%, 1.54% for E. coli. S.aureus and B.subtilis, respectively. One compound was isolated from the semi-polar fraction of the stem bark C. euryphyllum. It was identified as a triterpene (with molecular weight 438), a colorless crystal with a melting point was 133-134 °C, and the molecular formula was C30H46O2.
The effects of FeCl3 concentration on hydrothermal pretreatment of oil palm fronds to enhance reducing sugar production
Authors: Nurwahdah  , Rodiansono  , Kamari A , Abdullah R , Sunardi  
Published: November 2020

Abstract
The effects of FeCl3 concentration on hydrothermal pretreatment of oil palm fronds (OPF) to enhance reducing sugar production have been systematically investigated for the first time. The hydrothermal pretreatment was carried out in autoclave reactor with Teflon at 190 °C for 30 min with various FeCl3 concentrations of 0.075; 0.150; and 0.225 M. The residue from hydrothermal pretreatment (then noted as a substrate) was hydrolyzed by the enzyme (Cellulase Onozuka RS) in water bath shaker at 50 °C for 48 h. The amount of reducing sugar was analyzed by DNS (dinitrosalicylic acid) method using UV-visible spectroscopy. The reduced mass of substrate, change of color, alteration of pH of filtrate, and functional group analysis using Fourier Transform Infrared Spectroscopy (FTIR) results indicated the decomposition of OPF structures. The highest reducing sugar (3.800 g/L) of the substrate was obtained when the concentration of 0.225 M was used, which was higher than the pretreatment without FeCl3 added (2.673 g/L). Overall, our study concludes that the hydrothermal pretreatment assisted by FeCl3 can catalyze the decomposition of OPF structures to give the enzymes accessibility and enhance the reducing sugar production.
Essential improvement of non-timber forest products in Myanmar
Authors: Thantsin K , San K A A , Aye Y Y 
Published: November 2020

Abstract
Non-timber forest products were studied by interviewing the informants during the survey trip to the Tanintharyi Nature Reserve located in Dawei Township and Yephyu Township, Tanintharyi Region, Myanmar. The land area of the reserve forest is 1700 km2. Bioprospecting of non-timber forest products focusing on rural area development and systematic utilization of natural resources for sustainable development are popular nowadays. The extraction of economically important natural resources, leaving the forest structurally and functionally intact, has derived as an advanced strategy. The present study is the information of non-timber forest resources of Tanintharyi Nature Reserve located in the southern part of Myanmar, conducted from December 2017 to August 2018 by interviewing the informants of botanical folk knowledge. Totally 55 families, 113 genera, and 143 species were recorded as herbal medicines used locally by Dawei and Myeik (ancient Bamar) ethnic groups. This result will be helpful for the systematic search of biochemical and genetic information to develop commercially valuable products for pharmaceutical and cosmetics.
A preliminary study on the population and habitat of saltwater crocodile (Crocodylus porosus) in Timor Island, East Nusa Tenggara
Authors: Saragih G S , Kayat  , Hidayatullah M , Hadi D S 
Published: November 2020

Abstract
The information on the population size and habitat condition of the Saltwater crocodile (Crocodylus porosus) in East Nusa Tenggara is unavailable. The present paper discusses preliminary data on population and habitat characteristics of the Saltwater crocodile in three conservation areas in Timor island, namely Teluk Kupang Marine Nature Tourism Park, Menipo Nature Tourism Park, and Maubesi Mangrove Forest Nature Reserve. Spotlight surveys and vegetation analyses were carried out in each location. The crocodile encounter rate was calculated as individuals detected per km surveyed. The encounter rates in Teluk Kupang, Menipo, and Maubesi were 0.3 crocodiles/km, 0.4 crocodiles/km, and 0.6 crocodiles/km, respectively. Hatchlings, juveniles, and adult saltwater crocodiles were found in Maubesi, and only hatchlings were found in Menipo. Hatchlings were found in paddy fields, and adults were found in mangroves, estuaries, and rivers. Mangrove densities in Teluk Kupang, Menipo, and Maubesi were 127 trees/ha, 124 trees/ha, and 186 trees/ha, respectively. These are the first systematic surveys in the areas studied, and additional work is needed to characterize the population and habitat of the saltwater crocodile in East Nusa Tenggara.
Morphological characterization of local durian of Banten Province, Indonesia
Authors: Yursak Z , Amanda U D , Widiyastuti D , Susilawati P N 
Published: November 2020

Abstract
Durian (Duriozibethinus) is an exotic fruit with relatively advanced varietal improvement prospects. Indonesia is one of the countries with high durian diversity, one of which is located in Banten Province. This study aims to determine the diversity and relationships of several local durians in Pandeglang and Lebak Regencies of Banten Province based on the morphological characters of leaves, flowers, and fruit. The durian samples were obtained by purposive sampling and interview methods. The morphological characterization was carried out according to the guidelines of the “Bioversity International” including the description of stems, leaves, flowers, fruits, and seeds. After the characterization, scoring, standardization, and similarity index (IS) were calculated between samples. Cluster analysis was carried out using Cluster Observation with Ntsys 2.0 software. The analysis was conducted on 50 characters in 20 local durian accessions. The results showed that the clustering analysis was divided into three clusters with a similarity coefficient of 0.64. Group I consisted of SangkanWangi 2. Group II consisted of Hauk, Ketan Jaya, Grinsing, Sikucing, Kadu Katung, Jangkung, Sibening, Siradio, Siceer, Sipedang, Sikempong, Sicayut, and Sijabrig. Meanwhile, Group III consisted of Siemas, Baranjang, Kaduhejo, Kadukuning, Sangkan Wangi 1, and Sibening.