bluuebunny/crossref_metadata_2025 huggingface dataset:
Study of the forming elements of utopia city in Medan to create a sustainable city (Case study of Medan Johor District)
Authors: Astari S , Ginting N , Pane I F
Published: June 2021

Diverse and complex urban problems, both originating from internal and external cities, such as urban poverty, slums, inadequate facilities, and infrastructure and poor environmental quality are always part of the agenda in urban planning. Planners are not only faced with solving urban problems but also mobilizing all elements of the city so that they can support the success of the plans drawn up. In this case utopia city as a planning concept that describes a condition where urban problems can be solved and create an ideal and sustainable city. This utopian idea has inspired urban planners to develop new physical structures that are more detailed to get to a better world. This study aims to find the forming elements of utopia city which can create a better city in Medan with the location of a case study in Medan Johor District. Three main theories form the basis of this research, namely garden city, broad acre city and radiant city. Data collection was conducted using two methods, namely literature review and field observation. The data obtained were analyzed by interpreting existing conditions with the literature to produce findings, conclusions and suggestions from this study. Based on the results of the study it can be concluded that the forming elements of Utopia City have a role in efforts to create an ideal and sustainable city.
The potential sociability of building front set back areas in commercial corridor: Searching for typologies and variables
Authors: Heindri N , Prakoso S , Dewi J
Published: June 2021

This paper attempts to examine the potential sociability of building front setback areas that were often overlooked as urban spaces, by searching for typologies and variables of building front setback areas that bring opportunity to promote social interactions. Based on the case studies at the commercial corridors of Lippo Karawaci and Jl. M.H. Thamrin Central Jakarta, this study discovered that direct/transparent and pedestrian setback was the typologies that were successful in promoting active social interactions, due to the following variables, such as direct building lines, face-to-face visibility, street attributes, sidewalk width, shade and shelter from trees, mixed-use, and canopies. The car setback typology was found as a dominant typology and was less likely to support the creation of sociable spaces. However, this typology was able to stimulate sociability in some areas due to the presence of numerous variables, such as wide pedestrian width, the accessibility of transits and public transportations, the presence of public facilities, recurrent of weekly events, the convenience of street furniture, ephemeral objects, openings, and landmarks. This study may provide implications that the understanding of typology and its variables should be more reflective into the future design of active building front setback areas in commercial corridors.
Sustainable Urban spatial resilience in improving the quality of livable Green Open Space (GOS). Case study: An implementation of Green City Development Program (GCDP) in Malang City Center Development Area, Indonesia
Authors: Wikantiyoso R , Suhartono T , Triyosoputri E , Sulaksono A G
Published: June 2021

Sustainable Development Goals are collective agreements that generally result in harmonious and sustainable development. Harmony contains understanding related to ecological, humanities, and economic aspects. Sustainable development aims to improve the quality of life of present and future generations. In other words, sustainable city development leads to the creation of livable city ecosystems. A livable city is an ideal condition that can provide space for city life in a natural and sustainable urban area. The GOS revitalization must pay attention to the dimensions of scale, structure, shape, function, and urban spatial networks. Urban Resilience as a process can interpret as an effort to increase the ability to absorb and respond to the effects of disasters and reorganize to overcome disruptions in achieving normal conditions after disaster stress or urban changes. This discussion aims to create a sustainable urban spatial resilience model in improving the quality of livable GOS. The research method used is descriptive exploratory based on GOS map data and filed survey of GOS improving implementation in the Central Malang Development Area. Analysis of spatial structure resilience and spatial accessibility was carried out to assess the convenience of using public spaces. This analysis is conducted to answer the question of what factors affect the sustainability of resilience urban Green Open Space.
Criteria of campus exterior spaces in Central Java
Authors: Akbar M K , Nurgandarum D , Lahji K
Published: June 2021

This paper explores harmonious exterior spaces with its surrounding through contextual architecture. With case studies of Diponegoro University area in Central Java, Indonesia. Diponegoro University area consists of various functions of building complex, hence the exterior spaces criteria are disparate. However, there are no exterior spaces criteria contextual with Diponegoro University area. To solve the problems, this study suggested the following strategies, starting with precedent studies and analysis to identify exterior spaces criteria. Variables in the precedent study are sampled from several complex functions of buildings, namely : complex area of office function, educational function, multipurpose building function, mosque function. Precedent studies and analysis will generate general and specific exterior spaces criteria harmonious with its surrounding and related to the characteristics of each building. Tropical climate and topographic contours are also concerns in formulating general criteria based on campus location. Specific criteria are inferred according to the building based on its function. The result of this paper can be utilized as guideline to designing harmonious exterior spaces. This paper presents exemplary results showing that exterior spaces criteria divided into general and specific criteria.
Walking to transit (Study case: Pasar Senen Station, Jakarta, Indonesia)
Authors: Wijaya S
Published: June 2021

Every country must have various ways in applying the concept of Transit Oriented Development (TOD). The benefit of applying this concept is to suppress the level of congestion caused by the dependence of private car uses by switching to public transportation and emphasizing healthy lifestyle through walking and cycling to transit or other destinations. The research location will be conducted at Pasar Senen station, which is the second largest station in Jakarta that serves for economy and business class passengers with destination within inner-city and inter Java province. Along with Indonesian Government plan to turn this station as MRT interchange station for East-West line which will be built in 2024, a further study is needed on how the characteristics of this station area and what can be prepared in advance if Jakarta Government want to adapt concept of TOD into this station. To know the successful implementation of TOD concept in other tropical countries, it is necessary to do further research on what factors that shaped it. Thereby through the result of the analysis, can be formulated some recommendations that can be applied by Indonesian Government related to the Implementation of TOD concept in Jakarta. To ensure the achievement of the research objectives, then several targets must be done, include: 1. Analyse or identify the key success factor of TOD concept in other tropical countries such as Hong Kong and Singapore; 2. Develop new guidelines related to TOD concept that can be implemented in Jakarta.
Open public space and student use in Campus- A of Trisakti University, Jakarta, Indonesia
Authors: Rosnarti D , Rahmah N , Iskandar J , Purnomo A B
Published: June 2021

The Campus-A of Trisakti University in Jakarta has a significant Green Open Space (GOS). The purpose of this study is to learn how we can increase the use of GOS by students. For that purpose, we mapped the density of a group of students, facility, tree, and buildings within the GOS in the campus. We did regression analysis with the density of groups of students as the dependent variable and the other variables as the independent variable. The results of this study, the density of trees and facility explain the density of groups of students better than the density of the built-up area. From the regression equation, we know the value of the density of trees and facilities that can give optimum values to students use of space.
Sustainability concept of multi-ethnic settlement in Indonesia
Authors: Agustian E , Rachmawati R , Rijanta R , Pitoyo A J
Published: June 2021

Kampung Melayu is one of the conservation areas in Semarang city due to its high historical values. The area is a multi-ethnic settlement that shows a mix of multi-ethnic cultures in the community. This research proposes a factors that influence the sustainability concept of multi-ethnic settlement in the Kampung Melayu area. The concept is formulated by the background of the individuals, community, groups and location setting that aim to gather naturalistic and in-depth explanatory facts. The results show that sustainability concept of multi-ethnic settlement in the Kampung Melayu area is based on historical values. Historical values held by the local people are the basis for them to always hold fast to the teachings of Islam, apply the principle of balance between the world and the hereafter, and the principle of tolerance between people in the settlement.
The important factors of the safety system on fire hazard PD Pasar Jaya building for sustainable infrastructure in Jakarta
Authors: Pontan D , Maxsi A
Published: June 2021

PD Pasar Jaya is the traditional market in Jakarta. It has different characteristics from other building. The research wants to evaluate the important factors. Direct observations in the field and assessment are conducted by competent experts in the field of fire safety. The criteria used as reference factors for the assessment of fire safety protection are derived from SNI 03-1736-2000 and for the assessment of fire prevention and prevention facilities are derived from minister of public work regulation No. 26/PRT/M/2008 and NFPA. Finding is the average 14 building of the safety system on fire hazard (73) with the value of intensity and the volume of buildings (79), facilities active protection (76), the infrastructure of life-saving facilities (75), facilities passive protection infrastructure including water potential and potential fire (72) are the four most important factors of the safety system on fire hazard PD Pasar Jaya Building for sustainable infrastructure.
Quality of life for livable mixed use living
Authors: Zahrah W , Ginting N , Aulia D N , Marisa A
Published: June 2021

One of the typologies of mixed-use urban buildings is the shophouse. This kind of structure has long been one of the favorite dwellings of urban society. No wonder that development keeps continuing until today. Several previous studies indicate that shop house design is not always suitable for some livability criteria, such as the lack of open space, spatial, thermal, and audial comfort. Due to this ‘weakness’, this paper intends to explore aspects of quality of life in shop houses through literature studies. This study analyses secondary sources, namely scientific writings from academic journals and books. This exploration concludes that it is essential to focus the analysis on a subjective view of the quality of life-related to buildings’ quality. The relationship between the built environment and quality of life-based on residents’ living experience becomes the study’s framework. The review recommends phenomenology as the approach to investigate the correlation. This study is vital for architects to design more livable buildings from the viewpoint of building occupants so that the design is more acceptable and beneficial.
Anatomy of Lanting house architecture in Banjarmasin
Authors: Mentayani I , Hadinata I Y
Published: June 2021

The growth and development of city can be in line with efforts to strengthen the identity and character of its city. Currently, the riverbank architecture in Banjarmasin city is experiencing an identity crisis due to the changing pattern of people living from water based settlement to land based settlement. This identity crisis can be seen from the decreasing number and condition of Lanting houses, meanwhile there are no new development efforts. Lanting houses are part of riverside architecture that is closely related to riverside area that was the main problem in this study. The methodology used in this research is a case study methodology with an intrinsic case study. The findings in this study explain the anatomical principles of Lanting house architecture in Banjarmasin city confirm that there is no specific term attached to Lanting. The term used in the anatomy of Lanting generally refers to the local term (Banjar language) which is also used in the term of riverfront buildings and riverside houses. The architectural anatomy of the Lanting house can be traced from the anatomy of its shape, space, function, and order. The anatomy of space and functions is formed from the ability to process the internal space based on the financial ability/purchasing power of the occupants to the attributes of furniture in the building. There is a collective awareness that if there are more load in the building the more vulnerable the Lanting position.
Study on the deviation and ratio of spatial arrangement patterns in housing and city development to achieve sustainable urban form in Indonesia: Introduction of observations and calculations by space syntax
Authors: Bonifacius N , Tutuko P , Yuniawan D , Jati R M B
Published: June 2021

This paper aims to discuss and summarise research that has been conducted to provide an understanding of the development of spatial patterns of houses, housing, and the city master plan in Indonesia through the space syntax approach. The development of the house and the city essentially follows a basic pattern. This study provides an overview and understanding of the method of development of patterns by a study of deviations and ratios from an earlier pattern. Various approaches are taken to find the development of these structured patterns, both qualitatively and quantitatively. Data is collected using city master plans that are digitalised and analysed using Depth Map software. This study is a comprehensive study that has been carried out that supports sustainable urban forms. The study was conducted on Javanese houses, HBEs settlements, kampongs and three colonial cities in Indonesia. It found an understanding of the development of patterns, deviations, and similarities with previous spatial patterns. The results of this study are expected to guide housing designers, housing developers, urban planners and urban development policymakers to achieve a sustainable urban form.
The settlement of kampong Lawas Maspati Surabaya based on ekistics
Authors: Lesmana D , Antariksa  , Wulandari L D , Santosa H
Published: June 2021

The settlement of Kampong Lawas Maspati is in the urban area of Surabaya, Indonesia, about 500 meters away from the Heroes Monument. Located in Gang V and VI, community unit (RW) VIII, Bubutan, the area is considered unique from various perspectives. Having five neighborhood units (RT), Kampong Lawas Maspati is surrounded by modern buildings with the ancient buildings, local wisdom, cultural traditions, and residing traditions that are maintained. This study examined the viability and adjustment of the community of Kampong Lawas Maspati by examining the settlement conditions based on the principles of ekistics theory (people, society, nature, networks, shells). This qualitative research used an applied research approach. The results showed that the elements contributing most to the viability over the last 50 years ( 1969–2019) and in accordance with the Law of Cultural Heritage in Kampung Lawas Maspati were Shells, People, and Nature. The elements of Nature, Society, and Networks adjusted to the development of the city.
Managing Toba area as cultural landscape heritage
Authors: Utami W , Andalucia
Published: June 2021

The Cultural landscape is known as an interaction between humans and nature to set up the built environment and its activity. The built environment has been created because of human activity and the social perspective of life. Toba area which is located in Sumatera island is a cultural landscape area that must be managed appropriately. The first step of the management is announcing the mosaic of Toba to describe the potency of it and understanding the outstanding universal value. This paper is describing as cultural landscape heritage and its management to preserve it. Toba lake and its caldera which have a high value can be categorized as cultural landscape heritage because of the history and process of local people to create the space. Toba area shows the long process of human creativity with the uniqueness of the landscape. The settlement with the local people activity is shown as a cultural landscape. Toba area with is unique landscape as a living space for Batak people’s is a geology process that reflect the past time era and the dynamic of local people the face modernization. All of the data included history and prevent about Toba Lake area and caldera were analysed by the grounded method and qualitative description. To keep Toba Lake area as cultural landscape be required proper management. Not to freeze the condition but how to manage the continuity with a change that is based on past, today, and future.
Exploratory study: Conservation practices and the role of architect
Authors: Puteri S , Puspitasari P
Published: June 2021

Conservation practices are comprehensive and multidisciplinary, both in substance and process. Based on a review of 30 randomly selected conservation writings, the papers review revealed that 3% of the articles discussed the development of heritage buildings conservation, 23% of them described the roles of stakeholders related to conservation practices, 13% discussed scientific or multidisciplinary in conservation practices, 54% explained several techniques in conservation practice, and 7% identified several challenges and obstacles in conservation. The previous research result indicated that specific research on architects’ role in conservation practices was still lacking, while this is partly useful for formulating conservation education programs. This paper aims to present the results of exploratory research on the role of architects in preparing, planning, and implementing conservation. The research used a qualitative-exploratory approach through precedent studies and in-depth interviews with conservation practitioner architects. The information units were inductively classified into themes and formulated into conceptual models. The research found that architects’ roles in conservation practices were flexible, either as the main actor (leader) or as a technical assistant involved in parts or all stages of activities: recording and documenting, analysis, decision making, and drawing work.
Visual and spatial changes of the Batak Bolon House as the adaptation of its people’s lives in Gurgur Aek Raja village of Toba Samosir Regency
Authors: Yusran Y A , Dirgantara D
Published: June 2021

Traditional people always adapt to settle. Along with the time, the traditional houses have changed adaptively to human needs. One example could be found in the Bolon Toba house around the Toba Lake area. Many of the Bolon houses adding some new structures that make the visual form change. This research studied phenomena of the Bolon House changes in Gurgur Aek Raja village to find out visual and spatial variations as the adaptation of its people’s lives. Descriptively, Bolon House in Gurgur Aek Raja village is described and compared with the original shape of Bolon House in the TB Silalahi Center. The changes were studied using the exoskeleton adaptation concept in the building. Based on the result of the analysis, changes in the Bolon Houses of Gurgur Aek Raja village are dominantly affected by the economic aspect, the way in accommodating new needs, and lifestyle that keep up with the times.
The changing aspects of function and meaning of space in Alun-Alun Kidul Keraton Surakarta
Authors: Santoso I , Setioko B , Pandelaki E E
Published: June 2021

As one of the traditional squares on the island of Java, Alun-alun Kidul Keraton Surakarta faces the challenge of changing its function. The physical condition of the South Square of the Keraton Surakarta is covered by a wall called beteng. In the Javanese spiritual concept, Alun-alun Kidul is connected in an imaginary line to the south coast. In terms of structure, the Alun-alun Kidul has a characteristic Javanese town square in general which is influenced by the cosmological concept of Hindu society. In the past, the function of the Alun-alun Kidul was closed and had a high degree of privatization and became a place for rituals of silence and contemplation of the king. On the other hand, the current physical condition and function of Alun-Alun Kidul have changed. This change is an effort to support the needs of the city today and in the future. The method used in this research is a phenomenological descriptive approach, refers to a grounded theory that does not use the term population but emphasizes a social situation consisting of four elements, namely place, activity, person (actor), and time. The results showed a pattern of spatial use for sacred and profane activities in spatial and temporal characteristics. Physical structure patterns in permanent form do not occur much, but semi-permanent and non-permanent physical patterns show changes in the meaning and behavior of space. These patterns show non-physical influences, namely the influence of cultural aspects, social aspects, economic aspects, and political aspects, as well as the behavior and mindset of the community, especially Surakarta City.
The efforts of local community in preserving cultural heritage in the city of Semarang – Indonesia
Authors: Nurdiani N , Felicia N T
Published: June 2021

Cultural heritage on the island of Java-Indonesia has a lot of diversity. The community’s sense of belonging to their local culture provides an effort to preserve and protect their culture through cultural tourism activities that reflect community creativity and provide economic value. The purpose of this research is to explore and identify the architectural design features of creative economy space for cultural tourism in Semarang built by the local community. This research method uses a qualitative descriptive method. The results of this study provide knowledge that the architectural design of creative economy space built by the people of Semarang generally uses the potential of its local natural and cultural resources. It also reflects the vernacular architecture built by the local people. In the new normal period, local government ensure all tourist destinations must have a health protocol of Covid-19.
Comparison structure and construction of Husein Sastranegara International Airport terminal and Kertajati International Kertajati terminal in West Java
Authors: Mahfudz S A , Kridarso E R , Iskandar J
Published: June 2021

The need for air transportation increases every year. Indonesian government is on a never-ending construction of airport infrastructure across new regional points to create equitable development. Airport is an infrastructure to connect between modes of transportation. One of the most important parts of airport is the passenger terminal. Passenger terminal requires a wide-span structural system in order to accommodate arrival and departure procedures without disturbing circulation. Large wide-span structure requires an effective construction system. This paper aims to describe wide-span structures in airport terminal buildings. The method used in this study is qualitative with comparative strategy, primary data are obtained by open interviews related to airport terminal data and the secondary data related to structure obtained by a variety of literature. Data are analysed by comparing structures and construction systems at two international airports that have different structure sizes and systems, namely Husein Sastranegara Airport and Kertajati Airport. The results of this study show that alternative choices of wide span structure systems are adjusted to the form concept and airport location.
Sunflower yields increase by pre-sowing seed treatment in the electric field
Authors: Aksenov M P , Petrov N Yu , Daeva T V , Belyaev A I , Pugacheva A M
Published: June 2021

At present, the problem of the seeds sowing qualities and the produced crop quality improving is still urgent. The solution to this problem is carried out mainly through the use of various preparations for pre-sowing seed processing. A promising direction in the pre-sowing seed-processing field is the application of seed processing electrophysical methods before sowing. The research results on the industrial frequency of 50 Hz alternating electric field influence on the sunflower hybrids NK Neoma, LG 5550, ES Petunia laboratory germination seeds are presented in the article. It was found that with the electric field density of 6-8 kV/cm, the processing time from 60 to 95 seconds, it increases laboratory germination in the ES Petunia hybrid by 11%, in the NK Neoma and LG 5550 hybrid by 8%. It is proposed to process seeds in the electric field with set-up effective modes to improve the condition properties.
Mineral and water nutrition, soil cultivation technologies influence on onion yield, spatial variation and biochemical compound in the system of vegetable crop rotations of the Nizhneje Povolzhje region
Authors: Petrov N Yu , Bikmetova K R , Aksenov M P , Belyaev A I , Pugacheva A M
Published: June 2021

To increase yields, it is necessary to improve the technologies for growing agricultural crops. Scientific research was carried out from 2016 to 2020. The optimal seeding rates per hectare, seasonal irrigation rates and doses of mineral nutrition were studied, this will reveal the levels of vegetable crop rotations adaptive intensification, its influence on soil indicators characterizing the soil formation evolutionary processes and the products quality. The objects of the study were onion hybrids of foreign selection Pandero F1, Benefit F1, Valero F1, Manas F1. The domestic zoned variety Volgodonets was taken as the standard one. As the result of the search for the optimal combination of moisture supply and mineral nutrition levels, it was established that for the Nizhneje Povolzhje region, in the conditions of the existing land use and the adopted soil preparation technologies, indicators that provide 80% of minimum water capacity are the optimal variant. For five years of observations (2016-2020) in the Astrakhan region, the Pandero F1 hybrid showed an average yield of 139.07 t/ha, Benefit F1 - 150.16 t/ha, Valero F1 - 123.73 t/ha, Manas F1 - 133.76 t/ha. In the Volgograd region, the same hybrids showed 103.10 t/ha; 129.57 t/ha; 111.6 t/ha; 104.09 t/ha, respectively. The research allows to recommend the production to include in the technological processes the soil basic preparation, namely autumn plowing, to plow not to 0.22 … 0.25 m by a conventional plow, but to plow without soil overturning by the Paraplau unit to the depth of 0.42 … 0.45 m. The authors offer to leave sowing by eight-row seeders and to change to sowing by a twelve-row seeder.
The influence of growth regulators on the productivity of the sunflower under cultivation by innovative technologies in the southern chernozem of the Volgograd areas
Authors: Medvedev G A , Ivanov V M , Filin V I , Tkachenko A V
Published: June 2021

The article presents the results of three-year observations of the sunflower growth and development in two innovative systems of sunflower cultivation: Clearfield and Express Sun and the use of two growth regulators - IzagriBor and Fertigrain in the subzone of southern chernozems of the Volgograd region. It was found in laboratory studies that the positive influence of the studied growth regulators is already manifested during the period of seed germination. The plant growth and development regulator Fertigrain had a positive influence on the length of roots and seedlings. Izagribor was less effective. The advantages obtained during the seeds germination then affect both the studied hybrids field germination and the yield. On average, over three-years-long observations, the Clearfield sunflower cultivation system (ES-Novomis hybrid + Eurolighting herbicide) turned out to be the most efficient. When cultivating sunflower by using this system, an average of 2.53 t/ha of oilseeds was obtained in three years, which is 9.7% more than the Express Sun system with the same combination of factors studied. Fertigrain was found to be the most effective regulator of plant growth and development. Its use increased yields in the Clearfield system by 15.0% and in the Express Sun system by 12.4% compared to the control.
Biological method of plant protection is one of the green economy development directions
Authors: Komarova O P , Kozenko K Yu , Zemlyanitsina S V
Published: June 2021

The importance of the biological method of plant protection as one of the prospects for the green economic development in Russia and in the world is discussed in the article. The modern directions of the Russian agricultural science development for the transition to environmentally friendly agricultural production are analyzed. The experience of biological preparations and biological agent’s application in Russia and abroad is considered in the historical aspect. A differentiated approach has been proposed for chemical treatments prescribing, carrying them out only in pest proliferation centers, on border land and catching band, which makes it possible to almost halve the pesticides use. The field research results on the study of the spatial distribution of useful entomofauna in irrigated agricultural landscapes are presented, ways of increasing the species diversity and number of beneficial insects (entomophages and parasites) in agrocoenosis due to the redistribution of useful entomocomplex species in agrocoenosis and natural agricultural landscape are shown.
About models of agriculture digital transformation
Authors: Kurnosova N S , Kurnosov S A , Ulez’ko A V
Published: June 2021

The task of agriculture digital transformation is one of the priority tasks for the development of the country’s agri-food system. A significant level of agricultural producers’ differentiation in terms of the technical, technological and informational development level, in terms of financial capabilities and the resource quality provision give rise to the presence of many constraints on of digital technologies mass use processes in the agricultural sector and the agriculture digital transformation as the branch of social production. In these conditions, there is an objective need to substantiate the agriculture digital transformation several models, which allow to take into account the level of individual economic entities readiness for digitalization, as well as the planned scale of their production systems transformation, the transformation processes speed and depth. The assessment of the economic entities readiness in the agricultural sector allows to talk about the complex and fragmented digitalization models, each of them will have several varieties due to differences in the digital transformation strategy.
The assessment modeling of the innovative technologies implementation effectiveness in crop production
Authors: Bogdanov S I , Evdokimov A P , Markin M A , Ryabtsev V G
Published: June 2021

The research results of a model for effectiveness assessing of the “No-Till” innovative technology implementation in which the soil is not cultivated in the traditional, mechanical and usual for us way by plowing, but is covered with crushed plant crops remains, are presented. A system-cognitive analysis of the No-Till technology implementation effectiveness assessment applied in the intelligent system “Eidos” is realized while modeling.
The optimization of the filter compensating devices parameters choice at the enterprises of agro-industrial complex
Authors: Hanin Yu I , Pelih A E , Nikolaeva S I , Ivanova O A
Published: June 2021

The optimization function of the filter compensating device has been determined, the purpose of which was the possibility of the harmonic distortion factor minimizing, the arguments of which are the power of individual filters. To analyze and compare the efficiency of the filter compensating device, quality indicators measurements of the electrical energy at an agricultural machine-building plant were made. Using the developed methodology for the filter-compensating devices optimal parameters calculating in the Mathcad software environment, the parameters selection and determination of two options of filter-compensating devices were made. According to the calculations, it was found that for the object under study, the most optimal, effective and economical device is a filter compensating one with a narrow-band filter tuned to the 5th harmonic and a wide-band filter of the 3rd order tuned to the 7th harmonic.
Optimal Option For Agricultural Electric Network Based On Python Programming Reconstruction Order Determination
Authors: Veselova N M , Brenina T P , Tokarev K E , Zelyakovskiy D V
Published: June 2021

The main criteria for assessing the optimal functioning of agricultural distribution networks 6-10 kV are considered in the article. The criterion of reliability is the integral annual undersupply of electricity, the criterion of the electricity quality is voltage losses in the network, the criterion of economic efficiency is electricity technological losses in the network, and the physical condition is the networks wear and tear coefficient. The parameters of the existing network of 6 kV overhead lines N№ 10 RP-1 were analyzed, and the sequence of network sections reconstruction was determined according to the multicriteria model, taking into account the uncertainty of electrical loads. A mathematical model of a fuzzy set for determining the functional modal value is considered. A Python program was compiled to determine the modal value of the functional.
Irrigation management information system model with integrated elements of artificial intelligence
Authors: Borodychev V V , Lytov M N
Published: June 2021

The research is devoted to the development of new, self-adapting irrigation management systems allowing the control decisions reliability increasing based on the consideration of the terrain natural features in the service area. A model of irrigation management with integrated elements of artificial intelligence is proposed, which can significantly increase the forecast accuracy for the total water consumption of agricultural crops and the expected dates of irrigation. A distinctive feature of the proposed model is the use of an artificial intelligence segment to adapt the parameters of the total water bioclimatic model consumption to the conditions of a real area. The model assumes that adaptation occurs automatically through self-learning of a neural network integrated into the system. To train a neural network it is proposed to use hybrid information systems based on the combined use of sensor and computational methods of irrigation control. Such “double” systems can be implemented on test fields and adapted to the area decisions can already be extended to neighboring or similar areas.
Photovoltaic panels operating modes modeling to improve operation efficiency of power supply autonomous system of Volgograd State Agricultural University
Authors: Nekhoroshev D D , Melikov A V , Rudenko A Yu , Panchishkin A P , Aksenov M P
Published: June 2021

The paper considers the possibility of solar panels implementing on the territory of the Volgograd region and the Volgograd city. The structure and characteristics of equipment for generating electricity are considered in the article. Equipment for receiving, storing and transferring energy to the consumer has been proposed. Research has been carried out to determine the photovoltaic panels’ operation efficiency, taking into account many factors, such as the solar energy change during the year/day, the daylight hours length, the solar energy amount, etc. The positive research results were obtained after the experiment.
Development of short-range nozzle model for sprinkler machines
Authors: Motorin V A
Published: June 2021

The issue of land reclamation modern technologies and technical means development is considered in the article, in particular, the improvement of the structures of sprinkle-forming devices in order to increase their use efficiency, which is a priority direction of scientific and applied research. A short-range deflector nozzle of one-piece design sector action was developed, it includes a replaceable jet nozzle, due to which the pressure at the outlet increases, thereby creating a greater vacuum and better dispersion of the water-air mixture. The jet, upon reaching the vertical splitter of the flow part, is divided into two equal flows, the upper one - passes by the vertical part of the spreader and directed to the deflector central part, and the lower one, in turn, is divided into two more flows by the vertical part of the spreader and directed to the deflector edges. This technical solution allows to improve manufacturability and reduce the product cost, as well as to increase the uniformity of the spray, the range of sprinkle drops flow and the sprinkle gripping area, which provides fine-drop sprinkling, the average diameter of the drops is 0.5 … 0.7 mm, sprinkle drops from deflector nozzles flow range is 4 … 6 m/s. With such sprinkle, the energy impact on the soil and agricultural plants decreases, the bulk density in the upper soil layer and the mass of the sprayed soil decrease, which leads to the increase in crop yields by 6.0-20.0%.
Justification of some design and mode parameters of a multi-section climate chamber for growing plants
Authors: Lebed N I , Makarov A M , Kalinin Y V , Volkov I V , Sharonov N G
Published: June 2021

The purpose of the research was to develop a design of a multi-section climate chamber, to justify the structure of the control system and simulate the heat balance with the use of the device proposed. To ensure the declared capability of the climate chamber, a structural diagram of the control system was developed, which takes into account the following capability list in the controlled volume: ozone concentration control, control of the air recirculation rate, air temperature control, indirect analysis of the temperature distribution, control of the illumination and illumination spectrum, possible secure remote on-line monitoring and control of the system via mobile applications, possible storage of a large set of climatic and regulatory parameters for up to 5 years with the sampling rate of no more than 5 minutes. A mathematical model of the heat balance has been developed, which allows to determine important parameters for a climate chamber consisting of several interacting sections, such as the total power of the heat radiation required and the necessary heat consumption to develop and maintain the plant activity under preset specific conditions.
Intelligent system for agricultural crops defective areas monitoring and visualization based on spectral analysis of satellite high-resolution images
Authors: Tokarev K E
Published: June 2021

The article deals with the aspects of designing and software implementation of an intelligent system for monitoring and visualizing defective areas of agricultural crops based on the spectral analysis of high-resolution satellite images. The structure of the designed intelligent system, modules and procedures used in its software implementation, as well as a UML-diagram of user interaction with the components of the software system are presented.
Recent advancements in the bioprinting of vascular grafts
Authors: Fazal Faraz , Raghav Sakshika , Callanan Anthony , Koutsos Vasileios , Radacsi Norbert
Published: June 2021

Recent advancements in the bioinks and three-dimensional (3D) bioprinting methods used to fabricate vascular constructs are summarized herein. Critical biomechanical properties required to fabricate an ideal vascular graft are highlighted, as well as various testing methods have been outlined to evaluate the bio-fabricated grafts as per the Food and Drug Administration (FDA) and International Organization for Standardization (ISO) guidelines. Occlusive artery disease and cardiovascular disease are the major causes of death globally. These diseases are caused by the blockage in the arteries, which results in a decreased blood flow to the tissues of major organs in the body, such as the heart. Bypass surgery is often performed using a vascular graft to re-route the blood flow. Autologous grafts represent a gold standard for such bypass surgeries; however, these grafts may be unavailable due to the previous harvesting or possess a poor quality. Synthetic grafts serve well for medium to large-sized vessels, but they fail when used to replace small-diameter vessels, generally smaller than 6 mm. Various tissue engineering approaches have been used to address the urgent need for vascular graft that can withstand hemodynamic blood pressure and has the ability to grow and remodel. Among these approaches, 3D bioprinting offers an attractive solution to construct patient-specific vessel grafts with layered biomimetic structures.
Sensitivity of woven textile sandwich panel faces to Charpy impact properties
Authors: Alshahrani Hassan A
Published: June 2021

This research work is motivated by the increased demand for high impact strength and light-weight materials for many industrial applications, including aerospace and automobiles. Impact properties of 5-harness satin-weave carbon/cyanate ester polymeric prepreg sandwich structures has not been addressed adequately, though it is ideal for many space applications subjected to high temperatures. The impact behaviour of textile sandwich panels and their damage resistance were investigated experimentally using the Charpy test under high impact energy. This includes the sample orientations and its tested face to the impact direction. The results indicated that the sample orientations and its face to the impact direction has a significant effect on impact properties and observed damage modes. The selection of textile sandwich composite panel with higher impact resistance is an effective way of improving its applicability in many potential sectors.
Terahertz irradiation effects on the morphology and dynamics of actin biopolymer
Authors: Hoshina Hiromichi , Yamazaki Shota , Tsubouchi Masaaki , Harata Masahiko
Published: June 2021

Our recent experimental research on terahertz (THz) irradiation of actin filaments, which serve as representative biopolymer materials, is summarized in this review. We found that pulsed THz waves with energy density of ∼10−4 J cm−2 (∼108 W cm−2 at the peak) generate acoustic waves efficiently in the aqueous media. These acoustic waves propagated deeply into the water and demolished the actin filaments in living HeLa cells that were submerged into the cell culture medium. The results implied that THz pulsed irradiation affects the biomolecules in the tissues, even if these molecules are located a few millimeters away from the body surface. In contrast, irradiation using THz waves with lower peak power of the order of ∼W cm−2 induces the elongation of the actin biopolymer without thermal or acoustic effects. The polymerization of actin molecules plays essential roles in cell motility, growth, differentiation and gene expression. Therefore, our results indicate that THz waves could be applicable to artificial manipulation of cellular functions.
Microplasma assisted synthesis of silver nanoparticles capped with PVA, PVP and Sucrose
Authors: Saleem Muhammad Taimoor , Bashir Shazia , Bashir Muhammad
Published: June 2021

Silver nanoparticles (Ag NPs) have been synthesized by exposing Ar gas microplasma to liquid solution containing Ag+ ions. Sucrose, Polyvinyl Alcohol (PVA) and Polyvinylpyrrolidone (PVP) were added separately as capping agents in aqueous solution to avoid agglomeration of Ag NPs. There are two main mechanism involved in this experiment (1). interaction of electrons from microplasma with Ag+ ions present in aqueous solution and (2). Control of Ag NPs size by capping agents by surrounding Ag NPs. We have performed a comparison of capping performance of Sucrose and PVA in terms of stability of Ag NPs with the help of Ultraviolet-Visible spectroscopy (UV-vis). X-ray diffraction (XRD) analysis of Ag NPs capped with PVA and Sucrose shows average crystal size of 25 nm and 60 nm respectively. Dynamic Light Scattering (DLS) analysis was employed to measure the size distribution of Ag NPs capped with Sucrose, PVA and PVP capping agents. DLS showed that PVA-capped Ag NPs formed are more uniform in size as compared to Sucrose-capped. Average size of Ag NPs measured from DLS is 65 nm when capped with PVA and 120 nm when capped with Sucrose. Fourier Transform Infrared Spectroscopy (FTIR) spectrum obtained have bands of wavenumbers corresponding to functional groups of Sucrose and PVA which are present around Ag NPs.