bluuebunny/crossref_metadata_2025_split huggingface dataset:
The innovation of learning plan designer based mobile web to improve quality of learning media in vocational technology for education 4.0
Authors: Mukhadis A , Putra A B N R , Kiong T T , Sumarli  , Sutadji E , Puspitasari P , Sembiring A I , Subandi M S 
Published: March 2021

Abstract
The era of education 4.0 is an era of digitalization and transformation. Learning media must also follow technological developments for the learning process. The problem that often arises is the relatively weak learning media in the form of supporting programs for arranging learning plan. This study aims to: 1) mapping the components of learning media in the education 4.0 era; 2) testing the level of attractiveness of the Learning Plan Designer Based Mobile Web; and 3) testing the effectiveness level of the Learning Plan Designer Based Mobile Web. This study uses research and development (R&D) methods. In the mapping process, data collection techniques are through questionnaires and documentation. The focus of research is in vocational colleges in East Java. The results of this study include: 1) the components of learning media in the education 4.0 era consisting of easily accessible, ongoing information, easy to use, technology-based, intelligence systems, and educational interactions; 2) Learning Plan Designer Based Mobile Web products developed are feasible and attractive (mean score of 93.5%) based on the validation results of learning software experts and vocational and science education material experts; and 3) the results of the development of the Learning Plan Designer Based Mobile Web product are proven to be effective and can be used as a reference and alternative media for further research.
Scientific literacy of vocational school students in building construction
Authors: Arthur R , Daryati  , Maulana A , Febiansyah R , Kidung K 
Published: March 2021

Abstract
This study aims to determine the real condition of the competitiveness literacy ability of vocational school students in building construction. The study was conducted from January to February 2020. This research is basic research with a research design referring to a qualitative approach to the type of phenomenology in which the research subjects are vocational students in the competence of Construction and Property expertise in Jakarta and Bogor. The results of the study concluded that most of the tenth-grade students of vocational school did not have good scientific literacy and at the same time confirmed the 2018 PISA report. The results of this study will serve as the basis for an analysis of the literacy skills of vocational school students in the building construction, the quality of existing scientific literacy instruments and the development of scientific literacy instruments.
Assesment for plumbing competency instrument
Authors: Rouf F A , Arthur R , Agung P A M , Maulana A 
Published: March 2021

Abstract
This study aims to determine the quality of the compiled plumbing work competency instrument on clean water. This research was conducted from January to February 2020. This research instrument involved 3 validators each of the test construction and plumbing material. This instrument’s assessment involved three elements of competency, such as skill, knowledge of installation and plumbing system, and plumbing worker attitude. This research method is based on a descriptive design. Use the 4 expert assessments within the national qualifications framework as a guide. The results of this research will be used as the basis for the improvement and development of the plumbing instrument on clean water.
Utilization of millet flour as the basic material to make millcoff cake (millet coffee cake)
Authors: Azzizah P S N , Handayani T H W 
Published: March 2021

Abstract
Indonesia is rich in local food sources of cereals, but imports of wheat continues to rise each year. Substitution of wheat flour is one solution to cope with the high number of imported wheat. The cereals that can be used as a substitute material is millet. The purpose of this study is to determine the right recipe, knowing the nutrient content and determine consumer acceptance of millcoff cake. Millcoff cake is a product made from sponge cake flavored coffee that is substituted with millet flour and stuffing mixed with avocado mouse. This type of research is the research and development with 4D development model (Define, Design, Develop and Desimination). Selection of the recipe selected based on the sensory properties of the 4 aspects of color, taste, texture and aroma. Furthermore, the three treatments on prescription elected in substitution of millet flour that is 30%, 40% and 50%. The results showed that the chosen cake is cake with millet flour substitution as much as 50% because it has characteristics which approach control and still be acceptable to consumers. Nutrient content contained in cake millcoff showed 17.9897% carbohydrate content, protein content 7.6541% 14.6541% fat content, moisture content and ash content of 53.0830% 0.9202%.
The developing hairpiece module of the students at vocational secondary schools
Authors: Marliati N , Agrevinna M 
Published: March 2021

Abstract
This study aims to analyze the validity and effectiveness of the hairpiece module. The research method used is development or known as the Research and Development method. The stages in the research process are the analysis, design, development, implementation, and testing stages. Tests carried out in the form of validation were carried out by expert judgments or media and material experts, then the media was tested by students. The results of this study get the assessment of media experts in the very feasible category and material experts in the very feasible category. The results of student trials in small group trials were in the good category and large group trials were included in the good category. The analysis of the pre-test and post-test results showed a gain of 0.53 in the experimental group with moderate criteria and a gain of 0.42.
Remotely Operated underwater Vehicle (ROV) stabilization with Artificial Neural Networks (ANN)
Authors: Setyawan A , Mashoedah  
Published: March 2021

Abstract
The purpose of this research is to produce a system that can stabilize REMOTELY OPERATED UNDERWATER VEHICLE (ROV) using an ARTIFICIAL NEURAL NETWORK (ANN) smart system. The way the system works is done by reading the input in the form of an Accelerometer and Gyroscope sensor which is then processed using a microcontroller and the output is PWM (Pulse Width Modulation) which is interpreted by the ESC (Electronic Speed Control) driver to move the motor according to the speed it should be. In addition, the microcontroller also has to determine which direction the motorbike can go against from the ocean currents or the source of the shock it receives. ANN in this system is used to determine the size of the ROV’s freedom of air so that the motor can withstand any unstable external shocks (air currents) and still maintain its position and position.
Exploration of the determining factors of successful online learning in the industrial revolution 4.0 era
Authors: Lastariwati B , Komariah K , Mulyatiningsih E , Kartika M G 
Published: March 2021

Abstract
This study explores factors that determine the success of online learning in the aspects of (1) students; (2) lecturers/teachers, (3) learning methods; (4) learning content; and (5) educational institutions. This study was a meta-analysis study. The data sources were obtained from online journal articles published from 2018 to 2020. This study was conducted by selecting relevant articles, and re-synthesizing the research results qualitatively and quantitatively. The data were collected by reading, coding, analyzing in-depth, and interpreting the results of the analysis according to the research objectives. Data credibility was controlled by involving a second reader (inter-reader and inter-coder) The results showed the determinants of successful online learning are: (1) the students’ motivation and self-efficacy because the students must be able to overcome their obstacles (2) successful online learning methods require individual intervention from lecturers; (3) lecturers with technology literacy are more successful and able support other lecturers, (4) successful online learning content uses various sources and is actively involved in forums and (5) institutions facilitate Learning Management Systems and other online learning tools.
Pt-Nb2O5-SnO2 Composite Ceramics Competitive for Cost-Effective Room-Temperature Hydrogen Sensing
Authors: Liu Ming , Li Pengcheng , Cui Xiaodong , Cheng Liang , Hu Yongming , Chen Wanping 
Published: March 2021

Abstract
Pt-SnO2 binary and Pt-Nb2O5-SnO2 ternary composite ceramics were prepared using SnO2, Nb2O5 and Pt powders through pressing and sintering, separately. For the Pt-SnO2 binary system, samples with 5 wt% Pt typically possess a sensitivity of 145 for 1% H2-20% O2-N2 and a resistance of 3 MΩ at 25 °C in air of 50% relative humidity, which are 5 times and 20 times larger than those of the samples with 1 wt% Pt, respectively. For the Pt-Nb2O5-SnO2 samples with 1 wt% Pt, their sensitivity for 1% H2-20% O2-N2 is 150 and resistance is 7 MΩ, which are comparable to those of Pt-SnO2 samples with 5 wt% Pt, and much larger than those of Pt-SnO2 samples with 1 wt% Pt. These results show that Nb2O5 has profound effects on the room-temperature hydrogen sensing characteristics of Pt-SnO2 binary system through forming Nb2O5-SnO2 heterojunction.
Experimental Study on High Speed Cutting of 7075 Aluminum Alloy
Authors: Liu Qimeng , Xu Jinkai , Yu Huadong 
Published: March 2021

Abstract
A 4-edge cemented carbide end mill with a diameter of 6 mm was used to mill a single factor groove of 7075 aluminum alloy. The results show that the surface roughness of the bottom surface of the narrow groove decreases with the increase of the cutting speed in the range of variable cutting speed. Moreover, when the cutting speed is the highest, the burr on the edge of the narrow groove is not completely eliminated, and there are more burr and curling. When the feed rate is selected as a variable, the surface roughness of the bottom surface of the milling narrow groove increases with the increase of the feed rate. When the cutting depth is selected as a variable, the surface roughness of the bottom surface of the milling narrow groove increases with the increase of the cutting depth. There are obvious extrusion bulge marks between the two intersecting steps on the bottom surface of the milling narrow groove. The reason of extrusion bulge on the bottom surface of milling may be due to the large width and elastic deformation of 7075 aluminum alloy material, which results in large plastic flow under the cutting extrusion of milling tool.
Passivity Analysis of Track Walking Device on Soft Road Condition
Authors: Hou Youshan , Yuan Chunjing , He Jun 
Published: March 2021

Abstract
With wheel-track vehicle as the research object, the passivity of track walking device on soft road conditions have been studied, establishing the track walking device dynamic model and finishing the dynamic simulation. By the theoretical calculation and dynamic silulation analysis: the method of average ground pressure to represent the vehicle’s passivity on soft road condition has limitations, the average maximum pressure P_mm(MMP) evaluation method is more effective and more accurate; with the same track grounding length, the more wheels of the track walking device, the smaller the vehicle’s subsidence on soft road conditions and the better its passing performance. When a track walking device was increased from one single load wheel to three load wheels, the amount of subsidence on soft road conditions decreased by about 35%.
Vibration Reduction Design of Torpedo Engine Based on Modal Contribution Method
Authors: Song Wen , Yang Chenshi , Chen Zhiwei , Sun Yan , Bai Yiming , Li Gang 
Published: March 2021

Abstract
Aiming at improving the structure of torpedo engine, the damping technology based on modal contribution method was proposed. Based on the results of the linear combination analysis of the modal participation factors, the vibration control method of the constrained damping layer was designed to control the dominant modes with large contribution. Firstly, the dynamic model of torpedo engine support structure is built, and the modal frequency, modal displacement and normalized modal stiffness are obtained. The dominant modes in the target frequency band are calculated, and the first 24 modes are analyzed. According to the mode shape of dominant mode, the constrained damping layer is designed for the engine. The optimized structure was verified by numerical simulation and the corresponding experimental results. The results showed that the damping technology based on modal participation factor can significantly reduce the vibration response of the engine support structure. This method creatively combines the dynamic design with the damping design, and obtains an effective damping method for engineering, especially for the military industry field with narrow space and strict weight requirements.
The search for the location of the sunflower resistance gene to race G of broomrape on the linkage map in the lines of breeding of VNIIMK
Authors: Guchetl S Z , Savichenko D L , Ramazanova S A 
Published: March 2021

Abstract
The parasitic plant Orobanche cumana Wallr. is one of the main biotic limiting factors for obtaining high yields of sunflower. Since plant resistance to different broomrape races in different genotypes can be controlled by different genes, to ensure the evaluation of breeding material using DNA markers (MAS), it is necessary to localize the resistance gene for each of the sources. The aim of the research is to find the location of the Or7
gene, which controls the resistance to one of the most virulent broomrape races, on the sunflower linkage map and to determine the DNA markers cosegregating with it. For research we used the lines of breeding of V.S. Pustovoit of All-Russian Research Institute of Oil Crops (VNIIMK) resistant and susceptible to race G of broomrape. We used SSR-primers ORS 683, ORS 1040, ORS 1112, and ORS 202 for the PCR analysis. We excluded the location of the gene in the upper part of LG3 in the immediate proximity to the microsatellite loci ORS 683, ORS 1040, ORS 1112. Based on the studied literary sources and the reference genome of the sunflower HanXRQr2.0-SUNRISE, we compiled a partial physical map of LG3 and determined the area for further search for the localization of the Or7
gene and DNA markers cosegregating with it.
Problems and prospects of technical and technological renovation of the regional agro-industrial complex
Authors: Yu Gusev A 
Published: March 2021

Abstract
Technical and technological renewal of the agricultural sector is the main priority of the national agricultural policy, thanks to which the country will be able to reach food independence and security. The modern material and technical base of the industry in most regions, as well as in the country as a whole, is distinguished by a high degree of physical and moral deterioration. It is impossible to produce agricultural products that meet the requirements of world standards with the help of an outdated material and technical base. Due to low profitability, technical and technological renewal and modernization of the material and technical base of agriculture must rely on solid state financial support. Currently, the industry is deeply dependent on technical provision with imported machines and equipment. The key task of the current agro-industrial complex should be considered its transfer to innovations, digital technologies, and robotization. The industry’s orientation towards these areas requires the development of modern methods for assessing the efficiency of using fixed assets, innovations and investments.
The effect of fungicides on reducing the harmfulness of Alternaria blight of brown mustard
Authors: Serdyuk O , Trubina V , Gorlova L 
Published: March 2021

Abstract
Alternaria blight (pathogens are fungi Alternaria spp.) is one of the most harmful diseases for brown mustard. We carried out the research at V.S. Pustovoit All-Russian Research Institute of Oil Crops in 2017-2019 on the brown mustard variety Nika. In all variants we counted the mustard plants affected by Alternaria blight at the yellow pod stage, during the most intensive development of disease on plants. The aim of the research is to study the effect of modern fungicides on reducing the harmfulness of brown mustard Alternaria blight in the central zone of the Krasnodar region. We established that the treatment of brown mustard plants with fungicides at the green pod stage reduced the prevalence and development of Alternaria blight by 50.0-64.0 and 27.0-36.5 %, respectively, in comparison to the control (92.0 and 44.0 %, respectively). The preparations containing tebuconazole 250 g/l, EC and boscalid 200 g/l, SC showed the best biological effectiveness – 80.0-83.0 %. The yield of brown mustard seeds in variants with these preparations significantly exceeded the control (by 0.40-0.48 t/ha). The oil content of seeds was significantly higher than the control (by 3.8-6.5 %) in variants with tebuconazole 250 g/l, EC, boscalid 200 g/l + dimoxystrobin 200 g/l, SC and azoxystrobin 200 g/l + cyproconazole 80 g/l, SC.
Problems of assessing the development of animal husbandry in the context of production robotization and digitalization in Russia
Authors: Bochenina M V , Neradovskaya Y V , Nesterova E V 
Published: March 2021

Abstract
The article considers the research hypothesis - drive to increase the uniformity of animal husbandry development in different natural and climatic zones, due to production robotization and digitalization. The high level of technical equipment of livestock farms contributes to the reduction of regional heterogeneity. To determine the models and indicators describing the processes in agriculture, it is necessary to consider the characteristics of the object of study. The working hypothesis was evaluated using cluster analysis based on data from 84 regions of the Russian Federation based on 11 indicators reflecting financial, industry and labor characteristics. Cluster analysis showed that only 30% of farms have indicators that exceed the average level for Russia. The complex of existing problems does not allow to fully and rationally use available opportunities for the development of the livestock industry in the regions.
Application of modified ash-tree sawdust for oil removal from water surfaces
Authors: Ya Sippel I , Akhmetgaleeva G A , Magdin K A 
Published: March 2021

Abstract
This paper shows the study on the possibility of using ash-tree (Fráxinus excélsior) wood-working waste for removing heavy-oil products from aqueous surfaces by sorption method. In order to improve sorption properties, ash-tree sawdust was exposed to ultrasound treatment at 35000 Hz for 5 hours in aqueous environment. Waste diesel engine oil was used as a sorbate. The physico-mechanical properties of modified sawdust are determined: bulk density, buoyancy, moisture content, ash content and physicochemical characteristics of sorbate. The simulation of motor oil spills on the water surface was carried out; oil and water absorption were determined. It was shown that ultrasound-modified ash-tree sawdust is an effective sorbent, the degree of water purification from oil hydrocarbons amounted to 98-99% under static adsorption conditions.
On the development of biological products based on microorganisms from permafrost
Authors: Subbotin A , Narushko M , Bazhin A , Petrov S 
Published: March 2021

Abstract
The development of phytostimulants based on bacterial cultures isolated from permafrost soils of Western and Eastern Siberia, which have a higher adaptive potential to the peculiarities of the climate and soils of Western Siberia, is an urgent task. At present, the issues of “green” agricultural technology, based on the minimum use of chemicals and the expansion of the use of drugs of biological origin, are being actively considered. However, they are not universally applicable in various agro-climatic zones. Their activity and efficiency is associated with the survival rate in the rhizosphere and rhizoplane of plants and can be significantly reduced when used in areas of risky farming, in particular in Western Siberia. According to the results of morphophysiological studies, it was revealed that during the pre-sowing treatment of seeds of spring soft wheat of the Grenada variety with binary mixtures of pure cultures of some bacterial strains isolated from permafrost soils of three regions of Siberia, an increase in adaptively important plant parameters is noted.
Influence of complex genotypes of GH and PRL genes on milk productivity and milk quality of cows
Authors: Gilmanov Kh Kh , Vafin R R , Tyulkin S V 
Published: March 2021

AbstractThe aim of the study is to analyze the obtained data on the effect of complex genotypes of the somatotropin (GH) and prolactin (PRL) genes on the milk productivity of cows, on the amount and mass fraction of fat and protein in milk, that is, on the quality indicators of dairy raw materials. The study was conducted on a sampling consisting of 158 cows at first calving of Holsteinized black-and-white breed of pedigree breeding unit, “Dusym” LLC of the Atninsky district of the Republic of Tatarstan. As a result of molecular genetic studies (PCR-RFLP technique), the livestock was divided into groups taking into account the complex genotype of theGH/PRLhormone genes. The proposed evaluation of cows with different complex genotypes of theGHandPRLgenes by animals selection and matching will further increase the amount of high-quality dairy raw materials.
Retrospective analysis and current state of walleye stocks and fishery on the Dagestan coast of the Caspian Sea
Authors: Alieva A K , Nasibulina B M , Abdusamadov T A , Kurochkina T F , Guseynov A D 
Published: March 2021

Abstract
The dynamics of commercial catches, stocks and forecast values of walleye catch on the Dagestan coast of the Caspian Sea with the analysis of factors affecting the state of stocks for a long-term period is presented. Data on seasonal distribution, migration, reproduction, as well as age and size-weight composition of walleye populations in the study area are presented. The forecast of prospects for the use of walleye by fishing is given on the basis of the analysis of commercial stocks for a number of years of observations, taking into account the coefficient of total mortality, the influence of fishing load, the values of the commercial population replenishment with first-matured fish.