bluuebunny/crossref_metadata_2025_split huggingface dataset:
CO2 Mitigation in Fujian Province: an Input-output based Network Utility Analysis Method
Authors: Wang G. Y. , Liu J. , Ding Y. K. , Chen L. R. , Li Y. P. 
Published: February 2020

Abstract
This paper proposes an input-output based network utility analysis model to diagnose urban CO2 emissions metabolism. It is applied to Fujian Province to demonstrate its feasibility. The direct and indirect CO2 emissions of six major sectors are calculated using the input-output table. It is revealed that the total carbon emissions of the industrial sector were higher than other sectors, accounting for 74% of Fujian Province total carbon emissions. And the indirect emissions generated during the consumption process in the industrial sector were also the largest, with 0.43×109 tons of emissions. The wholesale and retail catering sector had the smallest carbon emissions, with only 14.9×106 tons of emissions. In addition, carbon emissions in all industries were on the rise. Then, network utility analysis is employed to define the various relationships between different sectors. It is found that the mutual relationship between various sectors in Fujian Province has developed from 1 pair of competition relationships to 3 pairs of competition relationships, which has reduced from 13 pairs of exploitation relationships to 12 pairs of exploitation relationships. The results can help to provide integral reference for policy makers to propose the effective mitigation strategies. The study found that Fujian’s carbon emission metabolism system is different from other metabolic systems in terms of industry structure. The competitive relationship represents the mutual suppression of carbon emissions between sectors, which further provides a good opportunity for carbon reduction.
Creating of Risk Maps
Authors: Brumarova L , Brumar J , Pokorny J 
Published: February 2020

Abstract
Risk assessment of defined types of hazards and their negative impacts in the territory is the basis for creating risk maps. Risk maps, following up the tasks from the concept of civil protection, will provide quality data for qualified decision-making in territorial planning. The article captures the process of creating risk maps in the Czech Republic in relation to territorial planning and sustainable development of the territory.
Impact of stormwater runoff in the urbanized area
Authors: Csicsaiova R , Marko I , Stanko S , Skultetyova I , Hrudka J 
Published: February 2020

Abstract
The development of urbanized areas leads to abiding negative changes in the landscape. The percentage of impermeable surfaces in the cities is increasing. Currently, efforts are being made to replace paved surfaces with alternative materials that contribute to reducing surface runoff. The aim of this paper is to get acquainted briefly with legislation dealing with the issue of rainwater management, with standards ensuring the correct design of rainwater infiltration devices and with the quality requirement of infiltrated water. In the second part, the paper summarizes the knowledge from the given area.
Evaluation of genotoxicity in industrial waste waters
Authors: Chlebkova L , Vaclavik V , Dvorsky T , Zajac R 
Published: February 2020

Abstract
This article presents the results of a research dealing with the detection of mutagenic activity of two samples used in the textile industry, Methylene Blue synthetic dye and Inotex real dye bath before, during and at the end of the biodegradation process by means of ligninolytic fungus Irpex lacteus. There is evidence that Methylene Blue synthetic dye was detected as an indirect mutagen prior to the biodegradation process. However, the biodegradation intermediate product was evaluated as a direct mutagen and the final product of biodegradation no longer induced any mutagenic activity. Inotex dye bath samples were assessed as non-mutagenic.
Identification of dry and wet years in eastern Slovakia using indices
Authors: Nagy P , Zelenakova M , Kapostasova D , Hlavata H , Simonova D 
Published: February 2020

Abstract
The aim of the paper was to evaluate dry and wet periods in selected climatic stations in eastern Slovakia using the drought indices. We evaluated drought occurrence using the following indexes: standardized precipitation index (SPI), streamflow drought index (SDI), drought reconnaissance index (RDI) and standardized evapotranspiration index (SPEI) in a 12-month step over the period 1960-2015. The evaluation of the results showed alternation of wet and dry periods. The result of the work is identification of the dry and wet years according the separate indexes during the evaluated period.
An alternative method of removing Cr (VI) from aquatic solution using chemically modified cone biomass and Fomitopsis pinicola
Authors: Pertile E , Zamarsky P 
Published: February 2020

Abstract
We report the adsorption of Cr (VI) ions from aqueous solution by forest waste. Two adsorbents were prepared from cone biomass and Fomitopsis pinicola. To study the kinetics of both were used three particular size (<0.5, 0.5-1, 1-2 mm). It was found that adsorbents chemically modified with a HCl (activation 2mol/L, activated for 60 min) demonstrated better Cr(VI) removal capabilities as compared to pure adsorbents in terms of their adsorption rate. The optimum conditions for removal of Cr(VI) were found to be particular size <0,5 mm, pH=1, contact time 10 min, adsorbent dosage 20g/L, concentration of Cr(VI) 100 mg/L, temperature 25 ± 1°C, rpm 200. The percent removal at these optimum conditions was found to be 100 % for both biosorbents. The Langmuir model fitted the equilibrium data better than the Freundlich isotherm. The maximum uptake capacities for 40.98 mg/g and 45.05 mg/g for cone biomass and Fomitopsis pinicola, respectively. To study the effect of other ions on the Cr (VI) removal by both biosorbents, electroplating industry wastewater was collected from an industry. Overall, the experimental results suggest that cone biomass and Fomitopsis pinicola could be used as low cost alternative adsorbents for the treatment of low concentration Cr (VI) containing wastewater.
Bending Strength of Polyester Composites Reinforced with Stitched Random Orientation and Plain Weave Abaca Fiber
Authors: Iqbal M , Aminanda Y , Firsa T , Ali M 
Published: February 2020

Abstract
This paper discusses the bending strength of Fiber Reinforced Polymer (FRP) composite made from polyester resin matrix and abaca fiber. The abaca fiber was prepared in the form of stitched random orientation and plain weave woven fabric. The abaca FRP composite was produced by using hand-lay-up method with the variation of weight percentage of the fiber. The weight density of the FRP composite was measured to determine the effect of fiber percentage to the weight density of the composite panel. The three points bending test was performed in order to examine the maximum bending force and flexural strength of the abaca FRP composite. The result of the experiment shows that the fiber weight percentage gave significant effect to the weight density and flexural strength of the abaca composite. Furthermore, the comparison between the two types of fiber form shows that the abaca plain weave woven fiber produces higher flexural strength compare to stitched random orientation woven fiber at all levels of fiber contents.
Determination of Changes in the Parameters of Electrical Machines after Repairs to Prevent an Unacceptable Increase in Vibration of the Building Structure
Authors: Belyi A 
Published: February 2020

Abstract
This article discusses the improvement of control methods for electrical machines after repair. These methods allow during testing of an electric machine to determine deviations of parameters that can lead to an increase in the level of vibration and subsequent failure of both the machine itself and the elements of building structures.
Study on Rotor Eddy Current Losses in High-speed Permanent Magnet Brushless Machines for Aircraft Applications
Authors: Hu Yaohua , Zhu Shushu 
Published: February 2020

Abstract
To improve the power density of aviation electric drive system, the high-speed permanent magnet machines has more and more popular in the air compressor, radial compressor, and electro-hydrostatic actuator applications. Two methods have studied to reduce the rotor eddy current losses in high-speed permanent magnet machines in this paper. Firstly, rotor eddy current losses at different stator slot openings are investigated, the stator core loss are considered simultaneously. Secondly, to reduce the magnet eddy current loss in carbon fiber retaining sleeve, the copper shield is added between permanent and carbon fiber, and the rotor eddy current losses at different copper shield width are studied.
Research and Design of the Control Law of Passive Side-Stick System with Human Factor Fault
Authors: Ziyu Yao , Xizhong Yang , Xuyi Qiu 
Published: February 2020

Abstract
For modern commercial civil aircraft, failure tolerant control (FTC) method is the basic strategy. Human factor fault is becoming more and more important for the design of the active control technology for the electrical flight control system or fly-by-wire system (EFCS or FBW). This paper focuses on the problem caused by the human factor with passive side-stick equipment. A new design concept was proposed based on the Boeing and Airbus experience and a control law of feedforward structure with alarm functions was designed in MATLAB\simulink. The functions were tested in a flight simulation platform in a desktop simulator based on the open-loop dynamic model. The results showed that each part of the control law worked well and the functions were effective. The human factor failure problem of dual inputs was well solved. The work provided a reference for the designer in the civil aviation field especially for those of the developing modern commercial aircrafts.
Assembly Method for Satellite Device Installation based on HoloLens
Authors: Zhang Wei , Zhang Qiang , Liu Zhe , Zhang Chengli , Wang Wei , Yin Chengshuang 
Published: February 2020

Abstract
As the satellite design changes from the traditional 2D mode to the 3D digital mode, the satellite assembly also enters the 3D assembly mode. An effective and accurate device installation process information transmission method from designers to operators is not formed, and accidents with incorrect polarity in device installation often occur. In order to improve efficiency and quality of satellite device installation, modelling method of R point of device is regulated and a system based on HoloLens is designed. With the help of the system, the code and R point are clear at a glance, so an ordinary operator can verify the polarity correctness of the device installation and the efficiency can be doubled.
Modal Analysis of Variable Structure of Gate Rotor of CP-type Single-screw Structure
Authors: Song Xiaofeng , Wang Wei , Wu Yuting , Ma Chongfang 
Published: February 2020

Abstract
Single screw technology, due to its superiority of structure, has been widely used in many fields of gas compression, refrigeration, power and so on at present. However, specialized research on the dynamics of single screw structure has not been systematic or in-depth yet. As for single screw compressors and expanders, the dynamics of the gate rotor are the key factors influencing its performance, and the variable-structure modal analysis of the gate rotor is an important task to study its dynamic characteristics. In this paper, the modal parameters of the CP-type single-screw structure gate rotor are compared by modal simulation and modal experiment, and the accuracy of the finite element method is verified. And mainly carried out the simulation modal analysis of the gate rotor variable structure. The results show that the change of structural parameters is an important factor affecting the natural frequency of the gate rotor mode. The variable structure modal analysis can be used to provide reference for the structural optimization of the gate rotor.
Tiltrotors Position Tracking Controller Design Using Deep Reinforcement Learning
Authors: Huo Yujia , Li Yiping , Feng Xisheng 
Published: February 2020

Abstract
In this paper, a quad-tiltrotors air-water trans-domain robot is introduced. The nonlinear dynamic behaviours with uncertainties require a robust controller for multi-tasks. For this robot, controllers are designed using deep reinforcement learning method solving position and attitude control when operating as a UAV in the air. A ROS combining Gazebo simulation platform is designed to train the robot. The simulation results show the tiltrotors robot gets capabilities of spots tracking as a quad-rotors, and trajectory tracking as both the quad-rotors and tiltrotors.
Simulation Analysis of Influence of the Blade Elasticity on Propeller Performance
Authors: Tan Yuhang , Peng Weicai , Shen Lijiao 
Published: February 2020

Abstract
The blade elasticity can influence hydrodynamic and structural performance of the propeller. The elasticity of the propeller is considered in the hydrodynamic simulation based on the CFD/FEM fluid-structure interaction method. And the hydrodynamic results of the elastic are compared with the rigid. Which show that the accuracy of elastic hydrodynamic prediction improved significantly compared with the rigid. In addition, the hydrodynamic prediction considering the elasticity also shows the transient fluid flow considering the influence of blade vibration. The study indicates considering blade elasticity can significantly improve the accuracy of propeller hydrodynamic prediction, and the prediction of fluid pulsation and propeller response can be used to analyse the flow noise and structural vibration.
Numerical Simulation Method for Wave Surface Landing of Seaplane
Authors: Feng Sun , Mingzhen Wang , Jiaxu Zhang , Qi Hu 
Published: February 2020

Abstract
A seaplane is an aircraft that takes off and land on the water. The water surface is divided into a static surface and a wave surface. The numerical simulation technology of seaplane landing on wave surface is carried out. The accuracy of the simulation method of static water is verified by the comparison of simulation and experiment. The numerical wave generation is realized based on the pseudo-physical method, and the wave surface landing simulation is realized by combining the numerical simulation method with the numerical wave-making method. It is found that the pseudo-physical wave-making method can realize numerical wave-making and the precision is adjustable; then the water-water simulation of the wave surface is realized.
Method of Probe Radius Compensation for Optical Complex Surface Measurement
Authors: Chen L J , Kang Y D 
Published: February 2020

Abstract
When surface measuring with a contact method, the data obtained by the LM50 laser interferometer is the data of the center of the probe actually, not the real measurement point. Therefore, based on the theory of NURBS and the theory of Delaunay triangulation, a method of “enveloping surface - triangulation” is proposed, and the normal vector of the measuring points of the surface is derived so that the radius of the probe is compensated accurately and quickly. After triangular segmentation, the normal vector of each triangle around a measuring point has an influence on the normal vector of the vertex, so it is necessary to calculate the weight function of each triangulation. In this paper, the influence of the edge length and the angle factor on the vertex normal vector is considered, and the calculation of the vertex normal vector is improved in the triangulation, and the programming and calculation are simplified on the premise of guaranteeing the accuracy.
Effect of Load Ratio on the Mechanical Field around Crack Front of Dissimilar Metal Weld Joints
Authors: Wenna Jia , Lingyan Zhao , Jinxuan He , Bashir Rehmat 
Published: February 2020

Abstract
Stress corrosion cracking (SCC) of the dissimilar metal weld (DMW) joints in nuclear power equipment has been paid more attention in recent years. Besides the geometric size, load level, multiaxial stress state and mechanical heterogeneity, the relaxation and redistribution of residual stress make it very difficult to directly study the influence of residual stresses on the actual welded components. To study the effect of load ratio on residual stress around the crack front in the weld zone of DMW joints, the distributions of residual stress and stress triaxiality under different load ratios are simulated and discussed. The analyses show that the stress becomes larger with the increasing load ratio. The stress is tensile stress near the crack front. While the stress becomes compressive stress when it is far away from the crack front. The external load rotio has great effect on the stress around the circumferential direction at the crack front. The higher load ratio are more likely to cause the crack propagation. In the region of crack angle θ=80-120 °, the load ratio has little effect on the stress triaxiality.
Non-vacuum electron beam welding and cutting of cupper
Authors: Hassel T , Beniyash A , Klimov G 
Published: February 2020

Abstract
Due to its physical properties, like high thermal and electrical conductivity copper is an indispensable material in many branches of industries. However the welding and cutting of copper and its alloys is challenging due to this properties and tendency to absorb gases resulting some defects like porosity or hot cracking. To prevent these, different requirements concerning the welding process have to be fulfilled. One requirement is the use of a highly concentrated heat input. The electron beam in atmosphere (NVEBW)is a suitable tool, which meets this requirement. This publication presents the advantages of NVEBW welding and cutting of copper. The experimental results of low-voltage (NVEBW) of copper will be shown and discussed too. The first portion studied the effects of varying power, travel speed and work distance on mechanical and electrical properties and structure of weldment at 175 kV accelerating voltage. The second portion studied the possibility of application of low-voltage 60kV NVEBW for welding of copper and influence of impurities in the copper on the welding parameters. The third portion studied the process of NVEB cutting of copper using the suction created by a local vacuum underneath the work piece. Experimental results of cutting with extremely high cutting speeds such as15m/min for 1.5 mm thick and 9m/min for 6mm thick copper will be representing.
Using ontological and architectural approaches for the vehicle fleet management in the enterprise engineering context
Authors: Kurganov V M , Gryaznov M V , Dorofeev A N , Nastasyak O B , Pervukhin D V 
Published: February 2020

Abstract
The transport activities at a large industrial enterprise are usually an auxiliary process. Therefore, its optimization with information technologies is often neglected. As a result, the cost accounting for the transportation of goods for various purposes is often a weighty problem due to inconsistent information flows. The method considered in this article combines the ontological and architectural approaches for the enterprise activities modeling intended to equalize occasionally a somewhat significant gap between business expectations and TMS functionality.
An organoid-based carcinogenesis model induced by in vitro chemical treatment
Authors: Naruse Mie , Masui Ryoichi , Ochiai Masako , Maru Yoshiaki , Hippo Yoshitaka , Imai Toshio 
Published: February 2020

Abstract
Animal carcinogenesis models induced by environmental chemicals have been widely used for basic and applied cancer research. However, establishment of in vitro or ex vivo models is essential for molecular mechanistic elucidation of early events in carcinogenesis, leading to clarification of the total mode of action. In the present study, to establish an organoid-based chemical carcinogenesis model, mouse organoids were treated in vitro with 4 genotoxic chemicals, e.g. ethyl methanesulfonate (EMS), acrylamide (AA), diethylnitrosamine (DEN) and 7,12-dimethylbenz[a]anthracene (DMBA) to examine their tumorigenicity after injection to nude mice. The four chemicals were reported to induce lung, liver or mammary carcinomas in mouse models. DMBA-treated mammary tissue-derived organoids with Trp53 heterozygous knockout exhibited tumorigenicity, but not those with wild-type Trp53, reflecting previous reports of corresponding animal models. Treatment of lung organoids with or without Trp53 knockout with EMS or AA resulted in carcinogenic histopathological characteristics, and the activation of oncogenic kinases was demonstrated in the nodules from the nude mouse subcutis. DEN-treated liver (biliary tract) organoids also had an increased number of similar changes. In conclusion, an ex vivo model for chemical carcinogenesis was established using normal mouse tissue-derived organoids. This model will be applied to detect early molecular events, leading to clarification of the mode of action of chemical carcinogenesis.
Clinical Pharmacology of Janus Kinase Inhibitors in Inflammatory Bowel Disease
Authors: Lefevre Pavine L C , Vande Casteele Niels 
Published: February 2020

Abstract
Inflammatory bowel disease, including ulcerative colitis and Crohn’s disease, are chronic inflammatory disorders of the gastrointestinal tract which are characterised, in part, by an imbalance in the production of several pro- and anti-inflammatory cytokines. Although various agents are effective for inducing and maintaining remission, approximately 20% of patients are treatment-refractory and require surgery. Parenterally administered monoclonal antibody-based biologics are associated with adverse effects resulting in treatment discontinuation and/or immunogenicity, leading to loss of response to therapy. Approximately 50% of patients who initially respond to treatment with tumour necrosis factor antagonists lose response to therapy within the 1st year of treatment. Incidence of immunogenicity tends to decrease over time, but once present can persist for years, even after treatment discontinuation. Nonimmunogenic oral small molecule therapies, including Janus kinase inhibitors, are currently being developed and have demonstrated efficacy in early phase clinical trials, which has already led to regulatory approval of tofacitinib for the treatment of patients with moderate-to-severe ulcerative colitis. Differentiation of T cells into T helper cells, which are mediators of the inflammatory response in inflammatory bowel disease, is mediated by the Janus kinase signal transducer and activator of the transcription signalling pathway. Absorption and distribution of Janus kinase inhibitors occurs at the site of action in the gastrointestinal tract, and newer compounds are being developed with limited systemic absorption, potentially reducing the risk of adverse effects. The current review describes the clinical pharmacology of approved Janus kinase inhibitors, as well as those in clinical development for the treatment of inflammatory bowel disease.