bluuebunny/crossref_metadata_2025_split huggingface dataset:
The potential for REDD+ to reduce forest degradation in Vietnam
Authors: Ngo D T , Le A V , Le H T , Stas S M , Le T C , Tran H D , Pham T , Le T T , Spracklen B D , Langan C , Cuthbert R , Buermann W , Phillips O L , Jew E K K , Spracklen D V 
Published: May 2020

Abstract
Natural forests in Vietnam have experienced rapid declines in the last 70 years, as a result of degradation from logging and conversion of natural forests to timber and rubber plantations. Degradation of natural forests leads to loss of biodiversity and ecosystem services, impacting the livelihoods of surrounding communities. Efforts to address ongoing loss of natural forests, through mechanisms such as Reduced Emissions from Deforestation and Degradation (REDD+), require an understanding of the links between forest degradation and the livelihoods of local communities, which have rarely been studied in Vietnam. We combined information from livelihood surveys, remote sensing and forest inventories around a protected natural forest area in North Central Vietnam. For forest-adjacent communities, we found natural forests contributed an average of 28% of total household income with plantation forests contributing an additional 15%. Although officially prohibited, logging contributed more than half of the total income derived from natural forests. Analysis of Landsat images over the period 1990 to 2014 combined with forest inventory data, demonstrates selective logging was leading to ongoing degradation of natural forests resulting in loss of 3.3 ± 0.8 Mg biomass ha−1 yr−1 across the protected area. This is equivalent to 1.5% yr−1 of total forest biomass, with rates as high as 3% yr−1 in degraded and easily accessible parts of the protected area. We estimate that preventing illegal logging would incur local opportunity costs of USD $4.10 ± 0.90 per Mg CO2, similar to previous estimates for tropical forest protected areas and substantially less than the opportunity costs in timber or agricultural concessions. Our analysis suggests activities to reduce forest degradation in protected areas are likely to be financially viable through Vietnam’s REDD+ program.
First passage time moments of asymmetric Lévy flights
Authors: Padash Amin , Chechkin Aleksei V , Dybiec Bartłomiej , Magdziarz Marcin , Shokri Babak , Metzler Ralf 
Published: May 2020

Abstract
We investigate the first-passage dynamics of symmetric and asymmetric Lévy flights in semi-infinite and bounded intervals. By solving the space-fractional diffusion equation, we analyse the fractional-order moments of the first-passage time probability density function for different values of the index of stability and the skewness parameter. A comparison with results using the Langevin approach to Lévy flights is presented. For the semi-infinite domain, in certain special cases analytic results are derived explicitly, and in bounded intervals a general analytical expression for the mean first-passage time of Lévy flights with arbitrary skewness is presented. These results are complemented with extensive numerical analyses.
Research of the influence of vacuum deposition on the growth rate of MoS2 films
Authors: Belikov A I , Kalinin V N , Sikov A V 
Published: May 2020

Abstract
The research results of the working pressure and discharge power influence on the growth rate of molybdenum disulfide thin films on silicon substrates during magnetron sputtering of the target in vacuum are presented. Based on experimental data, an empirical model has been developed that relates the film growth rate to argon pressure and discharge power on a magnetron sputtering system.
Simulation of the electrical conductivity of island-type thin films and nanostructures
Authors: Andreasyan O G , Sidorova S V 
Published: May 2020

Abstract
Areas of application of islet thin films in science and technology are described. Experiments on the formation of metal island nanostructures are performed. The principle of calculating the size of islands at different stages of growth is presented. The function of the tunneling current between islet nanostructures versus the deposition time is empirically deduced.
Actuator Based on a Dielectric Elastomer with Quartz as a Filler for Vacuum Technology
Authors: Bazinenkov A M , Ivanova D A , Rotar’ A P , Mikhailov V P 
Published: May 2020

Abstract
Modern equipment requires precise movement of objects both at atmospheric pressure and in vacuum conditions. Moreover, vacuum equipment is subjected to a number of external disturbances that adversely affect the manufacturing process and have a direct impact on the quality of manufactured products. A promising development in this area is actuators based on dielectric elastomers, characterized by a short reaction time (milliseconds) and a simple and cheap implementation. Successful implementation depends on an understanding of its behavior and properties, depending on the choice of matrix and filler materials. Most often, expensive barium titanate is used as a filler. This paper discusses the use of quartz as a cheaper filler.
Gas Analysis of Magnetorheological Elastomer During Vacuum Degassing
Authors: Bazinenkov A M , Efimov I A , Rotar A P , Ivanova D A 
Published: May 2020

Abstract
Research conducted in a vacuum requires high accuracy, but multiple vibrational and shock disturbing effects adversely affect the results. To increase the accuracy, it is possible to install a vibration isolation system in a vacuum chamber. One of the promising areas of active vibration isolation is the use of intelligent materials in them, including magnetorheological elastomer (MRE). Since most studies need to be carried out in a high and ultra-high vacuum environment, it is necessary to know the degree of influence of the MRE gas release on the quality of the operation environment. Thus, the aim of the work was to analyze the spectrum of released gases during degassing of the polymer (MRE) in vacuum at room and elevated temperatures. It was found that increased gas evolution from the studied polymer sample with increasing temperature does not allow to achieve high vacuum (1,7 · 10−3
Torr). We also identified that gases with the highest partial pressures are part of the atmospheric air; there are other gases not analyzed that significantly affect the total pressure (have a pressure of the order of 10−3 – 10−4
Torr).
MoS2 ultrathin films vacuum deposition and its AFM investigation
Authors: Belikov A I , Phyo Kyaw Zin , Thi Nhan Do , Linn Aung 
Published: May 2020

Abstract
In this article, we present the results of AFM studies on molybdenum disulfide ultrathin films (with a thickness of 3 to 13 nm) deposited on silicon substrates in vacuum by the magnetron sputtering MoS2 target during 10, 20 and 30 seconds. The film samples structural features were estimated and the deposition time influence on surface roughness, crystals size and its distribution asymmetry, fractal dimension was determined.
Development of a calculation method of the main parameters of the multistage turbomolecular pump
Authors: Gordeeva U S , Demikhov K E , Ochkov A A 
Published: May 2020

Abstract
We developed a calculation method of the pumping parameters of the molecular stage of the turbomolecular vacuum pump (TMP) operating in the molecular flow region. Also, the authors developed the calculation method of the main parameters of the multistage TMP for the providing the main pumping parameters including ultimate pressure, pumping speed, compression ratio. As a result of calculation, the we got the performance curve of the multistage TMP.
Investigation of WSi and NbN superconducting single-photon detectors in mid-IR range
Authors: Antipov A V , Seleznev V A , Vakhtomin Yu B , Morozov P V , Vasilev D D , Malevannaya E I , Moiseev K M , Smirnov K 
Published: May 2020

Abstract
Spectral characteristics of WSi and NbN superconducting single-photon detectors with different surface resistance and width of nanowire strips have been investigated in the wavelength range of 1.3-2.5 μm. WSi structures with narrower strips demonstrated better performance for detection of single photons in longer wavelength range. The difference in normalized photon count rate for such structures reaches one order of magnitude higher in comparison with structures based on NbN thin films at 2.5 μm.
Providing of Ultra-Thin Film Thickness Uniformity by Magnetron Sputtering from Two Sources
Authors: Hydyrova S , Akishin M Yu , Vasilev D D , Moiseev K M 
Published: May 2020

Abstract
To achieve high characteristics of single-photon detectors based on WSi thin films it is necessary to provide high film thickness uniformity more than 95%. This paper presents a mathematical modeling of the thickness uniformity of an ultra-thin film formed by magnetron sputtering from two sources, based on an experimentally determined mass flow from a single magnetron, depending on the location of the magnetrons relative to the substrate holder. According to the results of non-uniformity modeling, the requirements for the design and location of the magnetron unit in the chamber were made, which ensured the required non-uniformity of the film thickness of less than 5%.
Possibilities of the Electron-Beam Machine «LUCH» for Dimensional Microprocessing of Glass and Ceramic Materials
Authors: Zhuo Y , Liang M , Moiseev K M , Kolesnik L L , Panfilov Yu V 
Published: May 2020

Abstract
The article presents the modern applications and advantages of electron beam technology in the processing of glass and ceramic materials. The design and technological capabilities of the vacuum machine «LUCH» for electron beam melting, welding and dimensional microprocessing of vacuum glass and ceramic materials, including LTCC ceramics, are considered.
Analysis of ion-plasma technology application in medical products proceedings to be used for maxillofacial surgery (Review)
Authors: Demiyanova A V , Mitrofanov E A , Simakin S B , Sipkin A M 
Published: May 2020

Abstract
This paper concerns with published data review about properties of materials and coatings, which are applied for maxillofacial miniplates manufacturing and coating. Such products are known to be widely used for osteosynthesis in maxillofacial surgery because of its considerable advantages over other forms of fixation. Most of alloys contain toxic metals. Application simultaneously at the same place materials, which possess different conductivity results on galvanic effects. It has been supposed to use deposited in vacuum silicon carbide (SiC) coating to decrease negative influence of toxic elements to a man. This coating successfully has been applied in dentistry.
Neural Network modeling of Thin Films Deposition Processes in the Master’s Degree Programs “Electronics and Nanoelectronics” and “Nanoengineerig”
Authors: Panfilova Ekaterina V. , Galaganova Elena N. 
Published: May 2020

Abstract
In this paper we consider the application of artificial neural networks in the Master’s degree programs. Nowadays neural network models have become a powerful tool of scientific research for engineers and students. Besides successful research depends on confided usage of common methods and algorithms of statistical community special attention in degree programs is given to data analysis and modeling methods. Students study modern neural networks software products, methods of data preparing, designing and training neural network and then apply neural networks algorithms in practice. The neural networks modeling plays a significant role in students education. During it students learn to create, tune and train their own neural networks and get full and detailed understanding of research in computer vision. Neural Networks models are successfully presented in graduation works. In this paper a few examples of how neural networks are used in thin films deposition processes modeling are presented.
Methods for improving the structural 3D ordering of self – assembled photonic crystal coatings obtained by electrophoresis deposition
Authors: Panfllova E V , Ezenkova D A 
Published: May 2020

Abstract
The article describes the main properties of self – assembled colloidal photonic crystal coatings. A comparison of coating deposition methods is presented. Electrophoresis deposition method has gained great interest because of its possibility of conditions variation. The main factors affecting the quality of the colloidal opal films during electrophoresis deposition are studied. The results of experimental researches on increasing the ordering of photonic crystal coatings are presented. It was found that the voltage range of 0.7 - 2.7 V and pH of 7 allows one to obtain thick films with a pronounced PBG.
The study of heat transfer by radiation when heating a substrate using an infrared heater with a reflector in a working chamber with cold walls
Authors: Bychkov S P , Zikyi E V 
Published: May 2020

Abstract
A model is constructed, based on the algebraic method for calculating heat transfer by radiation, to determine the maximum temperature of the substrate heating depending on the geometric and thermophysical parameters of the surfaces for the “heater-substrate-internal surface of the working chamber-working and reverse surfaces of the reflector” system. The results are verified experimentally.
Vehicle path tracking Based on Strong Tracking Cubature Kalman Filter While Encountering An Emergency Collision Avoidance
Authors: Wei Bi , Wei Wang , Shaoyi Bei , Ben Jin , Bo Li 
Published: May 2020

Abstract
Considering the high speed emergency avoidance situations, the vehicle path tracking was studied in this paper. The three degrees of freedom nonlinear vehicle model and the cubature Kalman filter are applied to tracking vehicle emergency avoidance path. For the degradation of adaptive tracking performance in the vehicle emergency avoidance, an improved strong tracking cubature Kalman filter algorithm is proposed by introducing the fading factor into filtering process which is learnt from strong tracking filter. The algorithm has a simple implementation, high estimation accuracy and good robustness. Different target paths are selected and the cubature Kalman filter is applied to simulate path tracking in the vehicle emergency avoidance. The simulation results show that the proposed path tracking method can control the vehicle tracking the ideal collision avoidance path rapidly without collisions.
Architecture Design of Resource Support System for the Rail-Water Intermodal Transportation Cloud Platform
Authors: Yuan Jiaxin , Huang Qiang , Wang Mantao , Feng Qianxi 
Published: May 2020

Abstract
Due to the unbalanced development of intermodal information development in different regions of China, the rigid structure of resource system and the low degree of information sharing, the development of intermodal transportation informationization is restricted to a large extent. According to the architecture design of the rail-water intermodal transportation cloud platform, this paper reconstructs the traditional IaaS and PaaS architectures, and establishes a multi-area redundant architecture, so that these virtual resources can form an organic whole in the cloud and interact with the intermodal organizations. At the same time, the direct coupling between the hardware infrastructure and software of the “chimneys” system architecture are eliminated by using the layered structure based on the virtualization technology. The resource support system can reduce the use cost of information, strengthen the management efficiency of software and hardware resources of cloud platform and a large number of heterogeneous business applications.
Research on Dynamic Simulation System of Dangerous Goods Road Transportation Accident Process
Authors: Chi Hongpeng , Gong Bing 
Published: May 2020

Abstract
Firstly, the overall scheme of the dynamic simulation system of the dangerous goods road transportation accident process is determined. According to the technical route of the system development, the functional framework of the software and the main input parameters (vehicle mass, speed, etc.) are completed, the three-dimensional model of the vehicle and scene is established, and the function of the simulation system is developed. The typical accidents such as rear end collision, fire explosion and leakage explosion in tunnel are simulated. The real-time display of accident process parameters and the visual display of accident hazard radius are realized.
Image Haze Removal Using Dark Channel Prior based on Guided Image
Authors: Tang Long 
Published: May 2020

Abstract
In foggy weather, the interference of fog has a serious impact on the accurate monitoring of vehicle targets. To address this problem, this paper proposed a method which is image haze removal based on the guided image. In the process of this method, the clear images are as the guide images, which is designed to effectively redress the bright region which is not meet the dark color prior by the prior information of the guide image, to avoided the error estimates of this kind of area of transmissivity. Experimental results demonstrate that our method achieves significant improvement in both image quality and image detail when compared with classical image haze removal method.
Preliminary Research on VR Technology Application to Inspect the Physical Evidence of Vehicle Body Trace at the Road Traffic Accident Scene
Authors: Hua-Wei Xie 
Published: May 2020

Abstract
This thesis discusses a VR-based system designed for the policing at the grass-root level at the road traffic accident scenes. Basing on theoretical studies and technical comparisons, a VR-assisted simulation system for investigating the road traffic accident scenes is created on the aspects of system architecture performance, databases, back-stage management modules. The VR-based system plays a favorable role in assisting the scene investigators and instructors. This system can improve the efficiency of scene investigators and increase the effects of related teaching and simulative training remarkably.
Road Resource Optimization and Restructuring Based on BP Neural Network
Authors: Li Hailong , Gao Zhiwei , Tan Xiaodong , Ma Yilong , Yang Xiaoyi 
Published: May 2020

Abstract
In order to solve the problem of uneven distribution of road resources during rush hour of commuter traffic in cities, a method called “tidal lane” was designed to optimize and restructure the road resources after calculation and measurement of the road occupation rate and the speed of the vehicle. The algorithm based on BP neural network is designed to judge whether the road is changing lanes or reversing with the input of road occupation rate and vehicle speed. The signal is controlled according to the results obtained by the algorithm to achieve the optimization and restructuring of road resources. After the simulation, the trained BP neural network is obtained, and then the test results are obtained. Finally, the correct rate of the network is calculated to reach 97%, which meets the design requirements and proves the reliability and correctness of the method.
Reinforce-Optimization of regional network seismic based on connectivity reliability
Authors: Tingting You , Weiwei Meng 
Published: May 2020

Abstract
Road traffic is an important access for emergency service and disaster relief after the earthquake. In this paper, a reinforce-optimization model for road network seismic is established in combination with the analysis results of the seismic reliability of road segment and the importance of road segment. The model is aimed at the lowest cost of reinforcement and optimization, ensuring the aseismic reliability of the road segment and the system to reach the lowest limited value after the reinforcement and optimization, and the highest reliability of the system is mainly considered after the reinforcement and optimization. The orthogonal enumeration method is used to solve the scheme which satisfies the model condition, and a design method for seismic reinforcement and optimization of road network is given. Finally, it confirms the feasibility of this method with an example.
Intermittent instability and its control in parallel converters
Authors: Lili Wang , Junning Chen 
Published: May 2020

Abstract
This paper studies intermittency instability and its control in parallel converters. By numerical simulation, the intermittent subharmonic and chaos are captured with coupled interference signal, their characteristics are described by bifurcation diagrams as parameter varies. Then the paper proposes control methods and it is proved effective by the comparison of power spectrums. The conclusion can help engineer to explain the inherent irregular motion in vehicle, and design more stable power electronic supplies.
An optimized Algorithm for broadcast beacon frequency and transmission power in VANETs
Authors: Yang Guoyan , Li Xiangfeng , Shi Haiyang 
Published: May 2020

Abstract
Power control has been an important branch of the research field for VANETs. In order to meet the safety of vehicle driving, Vehicle-to-Vehicle(V2V) communication has become a research hotpot simultaneously. In the internet of vehicles, most of the messages generated by V2V communication are implemented by broadcasting. This paper proposed a joint optimization algorithm for power control and broadcast beacon frequency based on the LTE-V2V communication protocol. This algorithm applies deep reinforcement learning (DRL) and designs a reward function that can represent the communication effect of LTE-V2V. The experimental results show that the proposed algorithm can better configure the transmitting power and broadcast beacon frequency of the vehicle terminal, and obtain more reliable communication effects in the dynamic traffic flow environment.
Greenhouse gas emission of corn butanol in life-cycle
Authors: Li Jiang , Qiang Wang , Rongfu Zhu 
Published: May 2020

Abstract
Since advances in the ABE (acetone-butanol-ethanol) fermentation process in recent years have led to significant increases in its productivity and yields, the production of butanol and its use in motor vehicles have become an option worth evaluating. It employs a well-to-wheels (WTW) analysis tool, and ascertains Bio-butanol-related WTW activities including corn farming, corn transportation, butanol production, butanol transportation, and vehicle operation. According to the 3 kinds of by-product of different methods of distribution, calculation and comparison of the greenhouse gas emissions in the life cycle of corn alcohol. The results show that 1) life cycle GHG emission of the corn butanol reduced 26%—49.5% according to the energy value method and product substitution method;2) bio-acetone that was coproduced with bio-butanol as an alternative to petroleum-based acetone could significantly reduce the life cycle GHG emission of butanol; 3) In the life cycle of the corn butanol, the main source of GHG emission was the use of natural gas, diesel and nitrogen, accounting for the total GHG emission by 53%, 21.4% and 13.38% respectively.
Application Study on Urban Road Volume-Time Function Based on RFID Data
Authors: Gu Jian , Yu Linghua , Li Miaohua 
Published: May 2020

Abstract
Radio Frequency Identification (RFID) plays an important role on road traffic management and basic data could be collected from automotive electronic registration identifications, which could be applied for road traffic management and planning. Firstly, road section volume-time function was discussed in the paper, and then urban road RFID data collected from the city of Nanjing were analyzed with mature methods on identifying redundant and wrong data based on license plate number. Then the function from Bureau of Public Road (BPR) was calibrated to get the basic volume-time function with RFID data, and the basic function was improved based on the time periods, and the improved functions were used to describe relationships between volume and travel time in weekdays and weekends, and the fitting effect is compared with the basic function. It was indicated that the fitting effort R2 was increased by 40% at least. The results can provide reference and support for urban road traffic planning.