bluuebunny/crossref_metadata_2025_split huggingface dataset:
Efficacy of Several Entomopathogenic Microorganism as Microbial Insecticide against Insect Pest on Chili (Capsicum annum L.)
Authors: Zulfitri A , Krishanti NPRA , Lestari AS , Meisyara D , Zulfiana D 
Published: October 2020

AbstractThe purpose of this study was to apply microbial suspension of which formulated as bio-insecticide to observe its effectiveness in controlling insect pest on chili plants,Capsicum annumL. The efficacy of bio-insecticide was evaluated based on potential entomopathogenic microorganisms used in the microbial suspension. The bio-insecticide consisted of entomopathogenic fungal and bacterial suspensions. The experiment was carried out in chili cultivation area in Situ Gede, Bogor. The application used spray method with multiple various doses. The observation showed that the plant treated with spore suspensions of entomopathogenic fungiMetarhiziumsp. T4B23, B2-2, and cell suspensions of entomopathogenic bacteria Bt + SP4, were able to resist against insect pests, such as whitefly, grasshopper, and armyworm. In addition, the treated plant had more vigorous growth and yield than the control treatment.
The Effectivity of One-pot Concentrated Maleic Anhydride Hydrolysis for Betung Bamboo Pulp (Dendrocalamus asper sp)
Authors: Kusumaningrum Wida B. , Amanda Putri , Suryanegara Lisman , Masruchin N. 
Published: October 2020

AbstractModification and synthesis of cellulose have attracted growing interest in the last decade due to applicable for many fields on advanced materials. Organic acid hydrolysis could be as an effective process for functionalization and size reduction of cellulose in one-pot reaction. The objective of this research is to study the effectivity of maleic acid anhydrous for functionalization and isolation of nanocellulose. Unbleached and Bleached Pulp of Betung Bamboo were used as cellulose resources. Concentrated maleic acid anhydride in 50% up to 60% (w/w) for 45 up to 90 minutes at 100 °C of reaction temperature were conducted to isolate cellulose nanocrsytals from betung bamboo pulp. Fibrillation treatment on fiber solid residue using ultrasonication result micrometers scale less than 1 μm for unbleached (UBB) and bleached (BB) fibrillated cellulose. Functionalization of carboxyl groups is more effective on UBB than BB with surface charge up to -48.5 mV and specific groups of carboxyl are detected in 1716 cm-1and 1273 cm-1. Thermal stability also has similar tendency by Tonsetin 313.69 °C and Tmaxin 336.02 °C for UBB.
A Deep Learning and Depth Image based Obstacle Detection and Distance Measurement Method for Substation Patrol Robot
Authors: Hongsheng Xu , Tianyu Chen , Qipei Zhang , Jixiang Lu , Zhihong Yang 
Published: October 2020

Abstract
Recently, substation patrol robot is gradually used to replace the manual inspection in order to improve the inspection efficiency as well as security and automation level of substation maintenance. The research of obstacle avoidance is a hot spot in substation intelligent patrol robot area. The emerging new generation of artificial intelligence (AI) technology provides a new way to solve the obstacle detection and distance measurement problem. To realize accurate, effective and real-time response to the environmental changes, a novel obstacle avoidance method based on deep learning and depth image is proposed. The core of this method is pixel-level instance segmentation between obstacles and roads, along with a pixel-level matching of obstacles’ segmentation mask and depth data. The effectiveness of the proposed method is validated by actual tests in real substation environment.
A fault analysis for Micro-grid based on Wavelet
Authors: Wang Yang , Lu Yongcan , Wang Dongyang , Chen Ming , Xu Zikun 
Published: October 2020

Abstract
Micro grid is an efficient and flexible way to solve the problem of grid-connected distributed generation. Since the distributed generation accessed and the number of branch increases, system fault condition is complicated. Micro grid fault protection becomes a hot issue now. In this paper, a method based on wavelet is proposed for micro grid fault current analysis. A typical 10kV micro grid model is established in PSCAD, which is consisted of wind power, PV, EV and so on. And, short circuit fault is simulated. Then, the fault current data is further dealt by Harr wavelet. The results would provide a good guide for the setting of fault protection scheme.
Effect of Thickness and Patterns of Graphene Film on High-frequency Power Absorption
Authors: Hsu Chung Yen , Chen L S 
Published: October 2020

Abstract
In this paper we discuss the effect of thickness and patterns of graphene film on high-frequency noise absorption performance, experimentally determine the graphene film of electromagnetic reflection, absorption loss and transmission. A simple thickness design microstrip line based structure has been used for the microwave characterization in high-frequency. The graphene material mixing with epoxy (graphene : 70wt%, epoxy:30wt%, conductivity approximately 116 Siemens/m) was spin-coated or screen-printed on FR4 substrate to obtain the desired different film thickness. Complex S-parameter measures reveal different on thickness(0.05mm/0.5mm) in comparison to microstrip line. In this paper we found the graphene dual-film fabricated into the stair pattern with a thickness ratio of 1:10 has better performance than single layer. Both the S parameters and absorption power performance (Ploss/Pin) were measured in the high frequency range of 0.05 GHz–10 GHz. In this study the experiment results show that dual-film power loss reaches 95% at 2GHz were measured using an Agilent Technologies vector network analyzer PNA-X N5242A OPT200(VNA).
The servicescape of air transport terminal affecting passenger satisfaction
Authors: Kankaew Kannapat 
Published: October 2020

Abstract
The air transport infrastructure in this study is the airport. The aim of this research is to assess the airport environment specific on services cape or the architecture design, and function which affecting the passenger’s satisfaction. This study conducted at Don Mueang International Airport (DMK), Thailand. Since DMK has been renovated and expanded to serve the demand of passenger. The questionnaires were distributed to 400 Thais passenger using DMK airport. The structural equation modelling (SEM) was utilized to confirm the factors affecting the user’s comfort and satisfaction. The result found that the factor most affecting passenger’s feeling comfortable which leads to satisfaction inside the terminal were the exhibition of arts and culture inside terminal, the cleanliness of terminal, the natural light shine into the terminal and last the cleanliness of toilets. Hence, the airport management team should considering present the arts and culture of Thailand in the terminal. This would help passenger relaxing by appreciating the arts and culture during their journey in and out Thailand.
The vibroacoustic analogies method
Authors: Mogiljuk Zh G , Poduval’tsev V V 
Published: October 2020

Abstract
The article deals with the main problem of computational dynamic modeling of building structures, which is associated with the computational modeling of dynamic parameters of structural elements. The methods and schemes of construction of dual analogies between such dynamic properties of designs elements as inertia, rigidity and pliability to dynamic loadings are presented. The Vibroacoustic analogies for Ohm’s law, Kirchhoff’s laws, Hooke and Newton and the mathematical analogies between acoustic and electrical impedances for the elements of building structures are considered. The patterns of Vibroacoustic analogies for the resonance properties simulation of structural elements are examined. It is shown that the elements of the design have a multi-mode acoustic impedance. It is shown that correct modal analysis of structural elements dynamic reaction is a necessary condition for the correct simulation dynamic reaction schemes of buildings and structures to the effects of dynamic loads as complex mechanical systems. The article shows the convenience of using vibroacoustic analogies both in calculations of dynamic load distribution on building structures elements and in dynamic monitoring data interpretation of buildings and structures technical condition. The dynamic models of design are analyzed taking into account their vibroacoustic interaction in the acoustically coupled system of structural elements. The article presents equivalent schemes and systems of equations calculation modeling of the distribution of dynamic stress and strain in the building structure space. As an example, the computational modeling principles of dynamically indeterminate mechanical systems of buildings and structures is considered.
Experimental study of the influence of sand base reinforcement on the development of deformations under static and cyclic loading
Authors: Antonov V M , Al-Naqdi I A 
Published: October 2020

Abstract
The results of plate tests conducted in the laboratory of “soil Mechanics” of TSTU are presented. The cases of application of static and cyclic loads on reinforced and unreinforced sand base are considered. In these tests, the density of the sand base, the depth of the reinforcement element, and the initial load stage from which cycling was performed were changed. Three series of experiments were performed in a tank with rigid side walls. As the base, a fine, low-moisture, homogeneous sand was used. In the first series of experiments a stepwise increasing load was transferred to the plate at different densities. In the second series, a cyclic load was transferred to the base, with a value equal to half of the previously found ultimate load. In the third series of experiments, a reinforcing element was placed in the base at various distances from the sole of the foundation model and the load was applied both stepwise increasing static and cyclic. It is shown that the settlement during introduction of cyclic loading is from 20 to 50% of the total value. Reinforcement of the base allows you to reduce the settlement of cycling load. At the same time, there is a significant increase in the bearing capacity of the foundation and a decrease in the values of total deformations.
Calculation of thermal conductivity coefficient of thermal insulation mixtures
Authors: Galkin A F , Kurta I V , Pankov V Yu 
Published: October 2020

Abstract
The majority of prospective deposits of oil and natural gas in the Russian Federation are located in the zones of permanently frozen rocks - the permafrost. This region is characterized not only by harsh climatic conditions, causing difficulty in development of the deposits, but also by negative cryogenic processes impacting the reliability of construction and use of various engineering structures. It is necessary to know the regularities of and to be able to forecast the thermal regime of the soils and rocks in order to forecast the degree of influence of cryogenic processes on the engineering structures. In particular, the depth of thawing and freezing of soils in the locations of underground and surface structures, such as pipelines, is of importance. The depth of thawing of soil is an important indicator for the choice of the method of construction on the frozen surfaces. Control of the thawing/freezing depth can be ensured with the use of thermal insulation as well as replacement of the soil itself with an artificial soil with preselected properties. Transportation of oil and natural gas is realized using pipelines laid through frozen rocks. In order to decrease cryogenic impact on the pipes, special thermal insulation beddings replacing a section of soil are used. To determine the thermal insulation properties of beddings made out of polystyrene, variant calculations of thermal conductivity coefficient have been done according to the Odelevski and Schwerdtfeger formulas. Calculations were done for beddings in thawed and frozen state with different polystyrene content concentration. The conclusion is that both formulas can be used for theoretical determination of thermal conductivity coefficient. Absolute and relative errors do not exceed those permissible in engineering calculations for a wide range of conditions.
Working capacity of direct models of reinforced concrete structures with longitudinal corrosion cracks when exposed to centered and off-center compressive loads
Authors: Shamshina Ksenia 
Published: October 2020

Abstract
Based on the results of experimental studies of direct models of transport reinforced concrete structures with corrosion longitudinal cracks, the obtained functional dependences of changing their structural behaviors and deformations when exposed of central and off-center compressive load are presented.
Reduction of seismic loads for transport construction facilities using dry friction elements
Authors: Lapin V A , Yerzhanov S Y 
Published: October 2020

Abstract
In the city of Almaty, a seismically insulated building using dry friction elements was built at a special training ground. An engineering-seismometric service station is installed on the building. The dynamics of the building under the influence of accelerograms of real earthquakes in the city of Almaty is being studied. Accelerograms of the Baysorun earthquake recorded on solid soils and the Zhalanash-Tyup earthquake recorded on clay soils are used. Spectral coefficients are obtained for various values of the dry friction coefficient. It is shown that on solid soils the use of seismic isolation with dry friction elements based on fluoroplastic gaskets reduces seismic loads by half. On clay soils, the use of such a system of seismic isolation seems inappropriate. The results of the work can be used for seismic isolation of transport infrastructure facilities.
Foundations design and construction for high-rise buildings in seismic areas
Authors: Marinichev M B , Tkachev I G 
Published: October 2020

Abstract
Due to the unusual architectural forms of modern high-rise buildings, as well as an increase in design loads on their bases, geotechnics is developing. Experts in the field of bases and foundations solve increasingly complicated problems, as a result of which methods for calculating, designing and building hidden from the eyes, but very responsible and costly elements of the buildings that are the foundations, are improved. Hazardous natural processes, high seismicity, the risk of developing landslide processes complicate the task and make the problem of foundation engineering in such conditions even more urgent. The methods being developed for the construction of effective foundations have made it possible to erecting a number of high-rise buildings in seismic areas in recent years.
Evaluation of possibility of using crane-beams with increased load capacity in the existing industrial building
Authors: Egereva Elvira , Barmenkov Alexei , Barmenkova Alina , Tsoroev Adam 
Published: October 2020

Abstract
In the face of rapid changes in technological progress and market demands, industrial facilities require technical re-equipment to meet their objectives more and more frequently. In the article, work was carried out to investigate the possibility of equipping the existing production building, which is a two-span steel frame made of solid-wall welded I-beams of constant section, crane-beams with lifting capacity of 10 tons instead of the existing 5 tons, with possible options of reinforcement of structures in case of lack of their bearing capacity.
Assessment of the impact of the construction of semi-buried structures on the surrounding buildings and the road system
Authors: Komolov Vasilii , Belikov Artem , Kankhva Vadim , Mezina Natalia 
Published: October 2020

Abstract
The purpose of the study is to perform a geomechanical forecast and assess the impact of the construction of semi-buried structures on the surrounding buildings and adjacent roads. The article presents the result of the forecast of subsidence of the earth’s surface during the construction of the Foundation pit during the construction of a new facility (public service Center) and the adjacent road infrastructure, built in a dense urban development. The modeling was carried out in a three-dimensional for-emulation taking into account the nonlinear work of the soil and the phased construction of the foundation ditch. Selected parameters of bearing and enclosing structures of the foundation pit. The assessment of the impact of construction on the surrounding buildings.
Insolation factor in the design of energy-efficient buildings
Authors: Zelenski I R , Svinarev V S , Shcheglov D P , Radchenko I O , Cherneev A M 
Published: October 2020

Abstract
This article discusses the importance of taking into account the insolation factor in the design of energy-efficient residential buildings. The existing and fixed in the regulatory literature method of calculating insolation is analyzed, its strengths and weaknesses are revealed. As a way to further develop energy-efficient design, a variant of the automated calculation of insolation on the basis of the Autodesk Revit software package and the Dynamo visual programming platform was considered. The creation of an algorithm is demonstrated step by step, the advantages of using this method are clearly shown. Conclusions are drawn about the applicability of the obtained model in the design of buildings and structures.
Logistics centres in the region: the Russian Far East
Authors: Bardal Anna , Sigitova Marina 
Published: October 2020

Abstract
The area of the Russian Far East is 6.9 million square kilometers. This is the largest region in the country. All types of transport are operating in the Far East. Some sections of the state border between Russia and Asian countries pass through the region. In particular, the length of the border with China exceeds 4000 km. The transport complex of the region is involved in servicing transportation in the following directions: across the Far East, between the east and west of Russia, as well as transit, export, and import traffic. The creation of a system of logistics centers in the Far East will make it possible to more effectively organize the entire process of transporting various goods. This article contains proposals on the organization of a system of logistics centers in the Far East. The following indicators (official statistics) for 2013-2018 were used for calculations: volume of freight traffic by mode of transport, the density of the transport network, volume of production, population, gross regional product. The estimates using econometric methods made it possible to single out twelve locations for organizing the logistics centers in the Far East. The logistic system will include logistics centers of three levels: federal, regional and territorial. The levels are divided depending on the scale and significance of the transport and logistics work.
Managing the performance of transport organizations
Authors: Chernov Vladimir 
Published: October 2020

Abstract
The article considers the types of costs and their efficiency indicators, most related to the distance and capacity of cargo transportation. The calculation of the efficiency of transportation use depending on the change in the size of the cargo, as well as the calculation of planned revenue from sales depending on the distance of transportation are proposed. Next, the costs that are most dependent on distance and most dynamically affect the cost of transportation are highlighted. The method of factor analysis of material consumption with consideration of fuel consumption as an energy source for road transport is considered. This method will allow the transport organization to calculate the impact of factors, identify and use reserves to reduce the material intensity of transport and improve their efficiency. Based on the results of the factor analysis, measures are proposed to use the reserves identified in the factor analysis.
Logistics systems in modern conditions of the network infrastructure of the country’s transport complex
Authors: Astafieva N V , Ivanova N A , Dorozhkina E G , Agafonov I A 
Published: October 2020

Abstract
The article is aimed at studying the essence of the functioning of logistics systems, as well as determining how the use of innovations affects the economic development of enterprises and their logistics systems. The authors use innovative and system-integrated approaches to the development of functioning of logistics systems. The main results of the study are: development of an augmented classification of innovations in the logistics system, which contributes to the determination of objective and adequate models of economic situation and directions of their development, determination of vectors of innovative development of logistics systems in a modern business model, proposal of priority directions for improving functioning of logistics systems. Article materials may be useful in formulating a strategy for innovative development of logistics systems, which will contribute to their harmonization and adaptation to modern dynamic changes in the external economic environment and increase the investment attractiveness of enterprises.
Optimization of freight traffic in cities using the forecast transport model of freight traffic
Authors: Balaev E Y , Konovalova T V , Litvinov A E , Nadiryan S L , Senin I S 
Published: October 2020

Abstract
A sharp increase in traffic intensity has a negative impact on the quality characteristics of the traffic flow. Existing road capacity cannot cope with an ever-increasing number of vehicles, resulting in traffic jams
The rational connection coefficient calculation with different train structures
Authors: Makhkamov Nurmukhammad Ya , Ibragimova Gulshan R , Ismatullaev Azizbek F 
Published: October 2020

Abstract
Nowadays, the development of the country’s economy causes an increase in the volume of transportation. To develop them, the railway must continuously master transportation capacity through gradual development. Essential limitations of investment expenditures for the development of the railway provided that the volumes of transportation are fully fulfilled have put the railway in search of modern solutions. The increase in carrying capacity and capacity based on the complex strengthening of railway sections and technical means will ensure balanced development of the growth in traffic volume. Railway, block train, single train, cash throughput, required bandwidth.
Machine learning in calculating speeds in a railway sorting yard
Authors: Shabelnikov A N , Olgeizer I A , Sukhanov A V 
Published: October 2020

Abstract
The main step in the process of disbanding railway rolling stock at the marshalling yard is the regulation of the speed of cars that slide freely from the hump, which in most cases is carried out thanks to the brake positions installed on the hump yard in several groups. The paper considers the solution of the problem of determining the optimal exit speed of a group of cars (trailers) target braking positions on the tracks of the sorting yard, since the efficiency of the sorting process in terms of optimal accumulation on the cars on the tracks of the sorting yard and its safety depends on the correctness of the calculation of this speed in terms of compliance with the permissible speed of collision with the cars on the tracks. In the proposed study, an analogy is drawn between the calculation of the optimal exit speed from the brake position and the compilation of nonlinear multiple regression. The classic and modern machine learning algorithms to build regression models were analyzed. The most suitable algorithm was identified within the study. In conclusion, the results of the introduction of machine learning tools at a real automation facility for sorting processes are presented.