bluuebunny/crossref_metadata_2025_split huggingface dataset:
Capabilities analysis of lidar and passive optical methods for remote vegetation monitoring
Authors: Belov M L , Belov A M , Gorodnichev V A , Alkov S V 
Published: December 2019

Abstract
We have conducted a comparative analysis of efficiency to detect vegetation under adverse conditions by remote lidar and passive optical methods. The paper shows that a lidar method for monitoring at 1.65 and 2.03 μm wavelengths allows us to detect vegetation plots under adverse conditions with a probability of correct detection close to one and a probability of false alarm ~ second decimal places. A laser method that uses two eye-safe sensing wavelengths in the NIR spectral band can lie at the core of the airborne vegetation monitoring method.
Experimental studies of efficient sensing fluorescence radiation bands to detect oil and petroleum product spills
Authors: Fedotov Yu V , Kravtsov D A , Belov S L , Gorodnichev V A 
Published: December 2019

Abstract
We have experimentally studied the laser-induced spectra of petroleum products at the excitation fluorescence wavelength of 266 nm. The paper depicts a schematic diagram of the laboratory setup, gives data resulted from processing of laser-induced fluorescence spectra, and shows that, in comparison with spectra of petroleum products, the laser-induced fluorescence spectra of oil have a shift toward the longer wavelength spectral region and a far wider spectral bandwidth. For oil, an efficient band of sensing fluorescence radiation, is of ~ 390 – 600 nm in average. For gasoline, an efficient band of sensing fluorescence radiation has a significant shift toward the shorter wavelength region (~ 320 – 360 nm) as compared to the efficient sensing fluorescence radiation band for diesel and engine oils (~ 330-395 nm).
Load characteristics of a turbocharged diesel engine when working on natural gas
Authors: Grebnev A V , Chuprakov A I , Toropov A E 
Published: December 2019

AbstractThe article presents the load characteristics of the diesel D-245.7 when working on the gas-diesel process. The graphs of changes in the parameters of the combustion process, heat release characteristics, and effective indicators are given. It is important to study the issues of converting diesel engines to natural gas, as diesel engine is the most common in the national economy. The most suitable way of converting diesel engines to natural gas is to implement a gas-diesel workflow, since it does not require a significant engine rework. Diesel D-245.7 was chosen as an object of study. In the course of the study, among other things, the load characteristics of this diesel engine were removed when working on the gas-diesel process. When analyzing the experimental data obtained for a gas-diesel process as compared to a diesel one, some features can be noted. The gas-diesel process shows an increase in the temperature and pressure of gases in the cylinder. Heat dissipation is much faster. This indicates the volumetric nature of the ignition and combustion of natural gas. Engine power during the transition to the gas-diesel process is maintained at the same level, while the consumption of diesel fuel due to replacement by natural gas is reduced several times.
Influence of technical condition parameters on the residual resource of capacitive equipment
Authors: Kulakov P A , Rubtsov A V , Afanasenko V G , Zubkova O E , Sharipova R R , Gudnikova A A 
Published: December 2019

Abstract
The work solved the problem of resource assignment to the safe operation of capacitive devices after carrying out technical diagnostics on permissible technical parameters, depending on the combined effect of the parameters of the technical condition of the equipment oil and gas refining and petrochemical industries. 10 technical and technological parameters of capacitive devices were selected, and the evaluation was carried out using such an indicator as the residual service life of capacitive devices. The authors developed a mathematical model, calculated diagnostic coefficients and informative value of the indicator for each period adopted by the expert. An algorithm for estimating the residual service life of capacitive devices based on the measure of information content of Kulbak is proposed. The estimates of the residual life, which are out of the constructed model, are shown. Conclusions about the rationality of the proposed algorithm for solving problems of this type are made.
The results of the research of motor oils by the method of predicting indicators of thermal-oxidation stability
Authors: Bezborodov Yu N , Lysyannikova N N , Kirpichenko A A , Lysyannikov A V , Kovaleva M A , Egorov A V 
Published: December 2019

Abstract
The results of a study of the thermal-oxidation stability of motor oils are presented. The experimental data were obtained and analyzed by means of regression analysis, and graphical dependencies were constructed that clearly demonstrate the reaction of the lubricant to changing environmental conditions and with the help of which it was established that it is possible to determine the temperature of the onset of oxidation processes and temperature conversions, as well as their critical temperatures. As a criterion for evaluating thermal-oxidation stability, a coefficient of thermal-oxidation stability is recommended, taking into account the optical density and volatility of the oil. It shows the effectiveness of the method of predicting the performance indicators of a lubricant among existing research techniques.
Determination of the sorption characteristics of ammonium perrenate ions on anion exchange resin AV-17-8
Authors: Lutskiy D S , Ignatovich A S , Sulimova M A 
Published: December 2019

Abstract
The article considers one of the aspects of the processing of copper waste, containing in addition to a significant amount of copper several dispersed elements, one of the most interesting for extraction is rhenium. The dynamic and full dynamic sorption capacity of the sorbent AV-17-in case of perrhenate ions from ammonia solutions of leaching of copper smelting was determined.
Sulfur dioxide emission assessment using OMI data
Authors: Zuevskaya A I , Garifullin V F , Zuev D V , Zander F V , Temerbaev S A 
Published: December 2019

Abstract
The study is devoted to the estimation of sulfur dioxide emissions into the atmosphere based on satellite monitoring data in the area of the Norilsk industrial zone from 2010 to 2018. According to the measurements of the Ozone Monitoring Instrument - AURA satellite the NASA database is used. The maximum sulfur dioxide emissions amounted to 95 kt/month in November 2016, and the minimum - 0.185 kt/month in August 2011. The largest share of emissions is in January-May and November (90%). Comparison of the data obtained by the satellite method with the ground method revealed a difference of 30 to 65%, and with the method using aircraft carrier by 14 percent.
Calculation of balancing and filter compensating devices of the power supply system
Authors: Lukovenko A S , Kukartsev V V , Tynchenko V S , Mikhalev A S , Kukartsev V A , Bashmur K A 
Published: December 2019

Abstract
The problem of reducing the quality of electricity is increasingly arising in the process of increasing energy capacities. The decrease in the quality of electricity can be caused by many different factors that manifest themselves under certain circumstances, and therefore have different solutions for their elimination. The most acute problem is the impact of the electricity quality on the energy parameters of electrical equipment and power receivers in the metallurgical industry and on the railway. The article discusses the features of calculating the asymmetry of currents in a traction AC network. The main moments of calculating the settings of balancing devices are determined. The initial calculation data for balancing devices were taken from the dynamic parameters of one of the operating modes of a power transformer TDTNZh 40 MVA, to which two single-phase loads with a capacity of 17 MVA are connected to terminals AB and 10 MVA to terminals BC. The current of the negative sequence and the coefficient of the negative sequence are calculated, and the filter compensating device is also calculated using the parameters of the balancing device. Based on the calculations, the magnitude of the negative sequence current asymmetry was established and the calculation procedure for the balancing device connected to the traction winding of the transformer with the connection group Y/Δ-11 was implemented.
Educational environment of universities to creating technosphere safety and development of innovation economy
Authors: Smirnova T L 
Published: December 2019

Abstract
The paper examines the role of education in economic development from both a theoretical and a historic perspective, addresses why education has been the limiting factor of sustainable development. Educated workers raise national income directly and productivity of labour. This paper shows the impact of human capital development on economic growth in national economy through educational environment of universities in condition technosphere safety. In the study recommended that government would guarantee quality education environment of universities for development of innovation economy. Government should also commit more funds to enhance human capital development and environmental protection.
Prediction of injury to passengers of railway rolling stock based on modern physical simulation methods
Authors: Shorokhov S G , Bondarenko O I , Kobishanov V V 
Published: December 2019

Abstract
A technique for assessing the levels of injury to passengers and train crew members in emergency collisions is proposed. It is based on the use of physical methods for simulating fast-flowing non-linear processes of material deformation in emergency situations and anthropometric dummies. Based on the analysis of world and domestic experience in the study of injuring people in emergency situations in transport, an anthropometric 50 percentile male Dummy Hybrid III was adopted as a research tool. Its mathematical model is developed. It was verified by data from field experiments. The developed dummies are integrated into mathematical models for the development of emergency scenarios. As objects of study, the most promising types of rail car layout and two locomotive options were considered for the domestic rolling stock. Based on the simulation results, the values of the criteria for injuring passengers and members of locomotive crews in emergency situations are obtained. The most dangerous positions of passengers in the car during longitudinal collision of trains for the considered layout options are determined. It has been established that the most serious injuries are suffered by passengers and members of locomotive crews as a result of their interaction with car interior items and controls of the driver’s cab.
Assessment models for the generalized quality criterion for the production processes of thermal power plants
Authors: Tynchenko Ya A , Saramud M V , Kovalev I V 
Published: December 2019

Abstract
In order to increase the information reliability of the hardware and software technology for industrial and environmental monitoring, we obtained models of the thermal power plants production processes that can give an assessment of a generalized quality criterion for the occurrence of such technological processes as the preparation of fuel, fuel combustion, removal of flue gases and suspended particles. To form the measured values of the parameters of each technological process, a multiversion approach is used, which is based on obtaining the n-th amount of measured data.
Bar-shaped Magnetoelectric Gyrator
Authors: Leung Chung Ming , Zhuang Xin , Li Jiefang , Viehland D 
Published: December 2019

Abstract
This paper reports a dual-resonance power transfer effect and a dual-resonance I-V conversion for a bar-shaped ME gyrator made from a hard Pb(ZrxTi1−x)O3 (PZT) ceramic bar having a transverse polarization and a Tb0.3Dy0.7Fe1.92 (Terfenol-D) magnetostrictive alloy bar having a longitudinal magnetization bonded along their cross-section areas. A bar-shaped provides several advantages to a ME gyrator; such as dual resonance frequency along its length direction, as well as half-wave and full-wave vibration modes; reduced laminate bonding area avoiding adhesive breakdown; and ease of fabrication. The reported magnetoelectric gyrator effect originates from the mechanically mediated resonance piezoelectric and magnetostrictive effects in the PZT and Terfenol-D bars, respectively. We studied the influence of the length ratio between the Terfenol-D and piezoelectric bars. A power efficiency of 69.4% was obtained at the half wavelength resonance of 21.47kHz under optimal H
Bias=1000 Oe and low power conditions. Under higher power drive of 8W/in3, an efficiency of 60.2% was found. This dual-resonance ME gyrator effect offers much promise in power transfer devices for power electronic applications.
Demonstration of an electret generator for energy harvesting without any charging process: Utilization of spontaneous orientation of polar molecules
Authors: Tanaka Y , Matsuura N , Ishii H 
Published: December 2019

Abstract
Vibration-driven electret generators (EGs) for energy harvesting have been intensively studied since they are expected to be used as electric source, especially, for low power consumption devices. EGs have generally capacitor structure consisting of air gap and electret which is a dielectric material with a quasi-permanent electrical charge or dipole polarization. Because charges are induced on top and bottom electrodes by the electret, higher surface charge density (σ) is needed to achieve sufficient output power in EGs. Various techniques have been proposed to make electret with high σ; however, they are one of the factors reducing the productivity. Thus the elimination of charging process is crucially required. In this study, we develop electret film without any charging process by utilizing spontaneous orientation polarization of 1,3,5-tris(1-phenyl-1H-benzimidazol-2-yl)benzene (TPBi). A surface potential of TPBi vacuum evaporated film exceeded 46 V at 739 nm, and σ was estimated to be 1.8 mC/m2. In addition, the σ was quite stable in dark and vacuum condition. By taking the advantages of TPBi film, we developed a model EG without any charging process. An AC current in nano-ampere order appeared due to the vibration, suggesting the power generation in EG without charging process.
Promoting sustainable agricultural management through spatio temporal optimization of food crop land based on pedo-agroclimate at Kalalasi region, Southeast Sulawesi, Indonesia
Authors: Kandari A M , Baja S , Ala A , Kaimuddin  , Kasim S , Taufik Y 
Published: December 2019

Abstract
The purposes of this research were to: (1) analyze the suboptimal land availability and its suitability for food crops; (2) to identify the major and prime food crops; (3) analyze the socio-cultural and economic characteristics of farmers in order to develop local based climate change adaptation strategy and to prioritize major food crops using multi-criteria approach; (4) to promote sustainable crop and land management, through the local specific technologies dealing with the constraints of the Kalalasi Region. As regional based study, this research used overlaid maps of thematic lands, undertaken on suboptimal-land area with dry-climate at Kalalasi Region, Southeast Sulawesi. This study employed a spatial analysis method using GIS. Data collection included data on land biophysics, climate, and farming-based socio-culture and economic, using biophysical and social economic survey method. Land evaluation was carried out using FAO method. The major food crops were identified and analyzed using LQ method. Then, Multi-Criteria Decision Method (MCDM) through an application of AHP was used to promote sustainable crop and land management at the Kalalasi Region. The results of this research showed that: (1) Kalalasi Region had relatively varied characteristics of land biophysic, climate, socio-culture and economic, (2) Potential land availability for the development of food crops was ha, where the land suitability level of S2 (moderately suitable) of ha, S3 (marginally suitable) of ha, and the rest was N1 and N2, (3) there were eight major food crops in the research area, namely: maize, cassava, upland rice, soy bean, sweet potato, ground nut, green bean, and paddy rice, (4) prime or excellent food crops in research area were varied among regions (sub-districts), however, in general, it was concluded that there were four prime food crops, namely: cassava, maize, upland rice, and paddy rice, (5) productive and sustainable crop pattern and land management can be achieved through the application of multiple cropping system, planting diversification, and appropriate planting date for the period of December, January, February, and March, using drought resistant cultivar, and several other efforts for adaptation and conservation, such as mulching and cover crops, to deal with climate change. These were conducted to maintain the land and crop productivity, and the sustainable food availability.
Phytochemical analysis of beneng taro (Xanthosoma undipes K.Koch) leaves: cultivation as raw material for biopesticides for eco-friendly agriculture
Authors: Fatmawaty A A , Hermita N , Hastuti D , Kartina AM , Hilal S 
Published: December 2019

Abstract
Beneng taro (Xanthasoma undipes K.koch) is a local wild taro which grows spreading the land area of Gunung Karang in Pandeglang District, Banten Province. Recently, the demand of Beneng taro tubers is increasing due to improvements in its utilization as a food crops. Therefore, Beneng taro is now being cultivated widely by the farmers. However, the use of Beneng taro is still focus on its tubers, while its leaves has not been utilized and only become an agricultural waste. The aim of research was to find out the chemical content of cultivated Beneng taro leaves as a raw material for biopesticide. The research was conducted from July to September 2018. The leaves sample of cultivated Beneng taro were taken from farmer’s field in Juhut Village, Karangtanjung Sub-district. Phytochemical analysis was accomplished in the laboratory. Further, chemical content in the form of alkaloids, flavonoids, saponins, tannins, and oxalic acid were observed. The research result showed that there were negative content for alkaloids, flavonoids, saponins in Beneng taro leaves. The cultivated Beneng taro leaves positively containing tannins, and oxalic acid as much as 3448.20 and 8361.52 mg/kg, respectively. The chemical content of tannins in Beneng taro leaves indicated the potential use of Beneng taro as a raw material for biopesticide.
Morphology changes of rice root nucleus under iron stress
Authors: Polosoro A , Enggarini W , Hadiarto T , Ohmido N 
Published: December 2019

Abstract
Understanding the response of the Root Apical Meristem (RAM) region under environmental stress is a long-standing issue in plant biology. Our previous study successfully gave new evidence in the epigenetic level that there is a heterochromatinization, especially in the proximal meristem region in rice under environmental stresses (high iron and salinity). These changes are suspected to be responsible for the reduction of the growth rate of RAM. On this study, we used sensitive (Ciherang), moderate (Nipponbare) and tolerant (Mentong and Siam Arjuna) rice varieties to see the meristematic cell response under high iron content environment. For the methodology, we use the nucleus size as the indicator for cell phase. Normal meristematic cells are dominant in the interphase stage (spread to G0, S, and G1 phase). However, our observation and quantitative analysis showed that iron stress reduced the S, G0, and cell cycle phase and pushed the cell to form G0-like phase. There is no significant difference between tolerant and sensitive rice varieties response, this proves that this response is a general mechanism in abiotic stresses.
Foraging behavior of stingless bee (Geniotrigona thoracica and Heterotrigona itama) on star fruit trees (Averrhoa carambola L.)
Authors: Asma S S , Adam N A , Siti Najwa M Y , Asilah N , Syukri T S , Asiah W N 
Published: December 2019

Abstract
Star fruit produce flowers and fruits nearly the whole year round and it require cross- pollination for good fruit set and yields. An inadequate pollination rate is one of the factor that contributes to low yield. One of the effective way of increasing the pollination rate is by having insect pollinators such stingless bees in the star fruit farm. Malaysia is rich with native pollinator such as stingless bee, but there still lack of study related on their foraging behaviour. Therefore, the objectives were to study the foraging behaviour of Geniotrigona thoracica and Heterotrigona itama on star fruit trees. The colonies of G. thoracica and H.itama were selected for observation of activity foraging of stingless bee. Foraging bees was enumerated by using a manual tally counter to determine the number of individuals that flew out and into their hive within a 10 minute period each hour for each colonies. Then 10 of foragers’ G. thoracica and H.itama were selected randomly and marked using insect colouring on their thorax The period for each flower that visited by G. thoracica and H.itama was recorded by using stopwatch. The number offlower visited by G. thoracica and H.itama also recorded in 3 minutes. Result showed the peak time foraging activity of both stingless bees were in between 8.00am until 10.00am The foraging activity for each hours showed there was not significant differences, p > 0.05. Then the highest number flower visited by G.thoracica in 3 minute is 31 flowers while the lowest number flower visited in 3 minute is 7 flowers. However, for H.itama the highest number visited flowers are 27 and lowest number visited flowers are 8, for the longest average visited period for each flower is 14.76 seconds and the shortest period is 3.57 seconds. Meanwhile for G.thoracica longest average visited period for each flower is 12.88 seconds and the shortest average visited period for each flower is 2.72 seconds. In conclusion, this experiment showed that stingless bees have the characteristic for effective pollinator and have the potential to be used as a pollinator for star fruit trees. However, temperature, humidity and weather gave big influence on the foraging activity of stingless bees on star fruit plant.
Determination of potential level of Indonesian rhizomes as an antioxidant based on phenolic compound and antioxidant activity
Authors: Sandrasari D A , Sabariman M , Azni I N 
Published: December 2019

Abstract
This study was aimed to determined of the potential level of rhizomes from Indonesia as an antioxidant. The calculated of potential level rhizome based on the total phenolic compound and antioxidant activity.The phenolic compound was determined using the Folin-Ciocalteau method, antioxidant activity was determined by the DPPH (1-diphenyl-2-picrylhydrazyl) method expressed in IC50. Potential level was calculated by comparing the value of total phenolic compound and antioxidant activity. The results showed that red ginger ( Zingiber officinale var Rubrum) had the highest a phenolic and flavonoid content. Therefore that red ginger, Zingiber officinale var Rubrum is the most potential level as an antioxidant followed by Curcuma longa, Curcuma zedoaria, Curcuma zanthorrhiza, and Curcuma aeruginosa Roxb.