bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence Of Overload On Transverse Distribution Of T-beam Bridge
Authors: Du Wei Qiang , Tao Li 
Published: November 2020

Abstract
In order to study the influence of overload on the transverse load distribution of T-beam bridge, according to the different failure position and failure form of main beam, nine working conditions are divided for finite element simulation, and the transverse distribution value of each main beam under each working condition is obtained, and compared with the value under general load. The results show that: if the bridge transverse connection is damaged, the lateral load distribution capacity of the structure will be reduced again, and the stress form of the structure will become more unreasonable.
Research on Construction of smart community Based on GIS
Authors: Guo Chunlei , Zhang Chunmei , Wang Gang 
Published: November 2020

Abstract
At present, the construction of smart city in China has become an upsurge. As the basic unit of smart city construction, smart community is also in full swing. Residents are in pursuit of better quality of life. Intelligent community makes government management easier. Comprehensive monitoring and intelligent access control ensure the safety of the community and help the construction of smart city.
The Development Strategy of New Urbanization Based on Resilient City Theory
Authors: Liang Jing , Liu Yajing , Ma Lingyong , Xu Xiaoli , Liu Hongcheng 
Published: November 2020

Abstract
This year is the closing year of the “National New Urbanization Plan” issued by the State Council. During this time, the urbanization of China has achieved in-depth development in theory and practice, but it has also encountered many problems in the actual advancement stage. The theory of resilient city has important guiding significance for the sustainable development of new urbanization. Based on the summary of the resilient city theory, combined with China’s new urbanization with Chinese characteristics, the value of the resilient city theory for new urbanization is analyzed from the five perspectives of the city’s natural resilience, economic resilience, social resilience, organizational resilience and technical resilience. And from these five perspectives, it puts forward guiding opinions on the development strategy of new urbanization.
Optimization of Horizontal Freezing Scheme for Complex Curtain
Authors: Yu Changyi , Lu Mingyue 
Published: November 2020

Abstract
In view of the difficulty of theoretical calculation for complex curtain with complex form of subway connecting passage freezing method, this study simulates the subway connecting passage freezing method construction with finite element method based on a practical project. The effects of different temperature cold sources, different thermal insulation materials around the subway tunnel lining, and different layout of freezing pipes on the freezing period are mainly studied. The results show that the thermal insulation materials around the subway tunnel lining have little influence on the freezing period, while the freezing cold source temperature and the arrangement of freezing pipes have great influence on the freezing period. The research content of this paper provides an effective reference for the freezing construction of subway connecting passage and an effective analysis method for designers.
Study on the Unconfined Compressive Strength Test of Liquid Soil Materials
Authors: Zhang Yi , Guo Dandan , Huang Chongwei , Chen JuanJuan 
Published: November 2020

Abstract
Aiming at the unconfined compressive strength of the new self-flow platform backfill material which is called liquid soil, indoor tests were carried out with electro-hydraulic pressure testing machine. The effects of different water content, cement content, admixture type and admixture content on the strength of liquid soil are comprehensively analyzed. The results show: the influence of water content on the strength of liquid soil is obvious, and the function relationship of the quadratic equation is presented between them. The unconfined compressive strength of liquid soil increases remarkably with the increase of cement content, showing a trend of e-index growth. The active mineral powder has a certain increase in strength but a lower rate of increase. The water reducing agent slightly increases its strength and then slightly decreases and medium sand makes its strength increase significantly.
Teaching Reform and Exploration of Graduation Design for Civil Engineering
Authors: Liu Xiaoling , Du Peng , Wu Shengchao , Hao Yang 
Published: November 2020

Abstract
The civil engineering graduation design is an important indicator to measure the quality of professional teaching and assess the comprehensive ability of students. Taking the civil engineering major of Haikou University of Economics as an example, using research and statistical analysis methods, the status analysis of the civil engineering graduation design was carried out, the specific problems in the practice process were exposed, and effective improvement measures were put forward. The graduation design teaching provides a certain reference for the civil engineering major of private universities.
Research on the Activation of the Old City Zone from the Perspective of Community Construction -Taking Front of customs street in Macau as an example
Authors: Zou Yitong 
Published: November 2020

Abstract
Under the background of high urbanization, the living environment of the old city gradually failed to keep up with the pace of urban development. The old urban area carries the memory and culture of urban development. How to protect and activate the old urban area has become the focus and difficulty of urban renewal. Due to the nature of land and legal regulations in Macau, the historical city of Macau can completely retain many buildings with different styles in such a dense area. At the same time, it is also limited by the nature of Macau’s land and related laws, and the renovation of the old city is not satisfactory. This article mainly uses the literature search method and case study method to study the current situation of the protection and activation of Macau’s old urban areas. This article will take Front of customs street in Macau as an example to discuss how to realize the activation of the city’s old city from the perspective of community construction, with a view to preserving the context of the old city, improving the living environment, improving the quality of life of residents and promoting the sustainable development of the city.
Study on stability calculation method of red clay slope based on composite sliding surface
Authors: Chen Kaisheng , Wang Qinqin , Luo Dipu , Zhou Bo , Zhang Kun 
Published: November 2020

Abstract
The stability of the red clay slope is poor, and the long-term exposure to the atmospheric environment is prone to instability and damage due to the dry-wet cycle. The simplified Bishop method to calculating the stability of the red clay slope is inconsistent with the actual situation. The failure characteristics and mechanism of the red clay slope are analyzed, and the existing problems of the red clay slope stability calculation are pointed out. The red clay slopes in Guizhou Province are dominated by shallow failures. Local collapse and collapse failures are very common. Overall destruction is relatively rare. A stability analysis method for red clay slopes based on composite sliding surfaces (fold-line - circular arc) is proposed. In the stability analysis of clay slope, the soil body is divided into three layers of upper, middle and lower fissure areas, and different strength indexes are selected in different areas. It is recommended to consider the effect of hydrostatic pressure generated by the water column in the fracture on the stability of the red clay slope.
Research on the Effect of Under-Aged Concrete Arch Grouting for Ultra-High Arch Dam in Alpine-Cold Region
Authors: Shi Li , Zhang Ying , Huang Peng , Di Shengjie 
Published: November 2020

Abstract
In order to study the concrete excessive early stress and cracking risk caused by early cooling rate after the arch grouting of the ultra-high arch dam in alpine-cold region, the effect of grouting water cooling and temperature compensation are analysed. The results show that the under-aged concrete arch grouting in the constrained area, especially the strong constrained area, cause a large tensile stress due to continuous cooling and there is a risk of cracking. In actual construction, the early concrete temperature drop rate should be strictly required. Sealing at different ages has a certain effect on the later stress process. The tensile stress is the smallest at the 90-day age, the largest at the 60-day age, and the middle-sized at the 120-day age.
Improvement of water measuring equipment and urban waterlogging drainage during flood control period
Authors: Qi Haiyue 
Published: November 2020

Abstract
Since July 2020, an ocean of river flood water level warning lines in the middle and lower reaches of the Yangtze River have a critical period of flood controlling. Flooding’s condition is concerned with people’s interests and safety.This paper considers how to accurately forecast the water level and fasten the construction of urban water logging and drainage during floods. Imagine a tempered gauge with thin bottom steel and solar energy gauge used both rain and drought to predict the flood level and water volume more accurately, and do well in flood prevention in advance. At the same time, the attention of urban water logging will be further combined with the displacement and rate of the reservoir in the system to reduce loss during urban flooding period.
A brief review of the impact of distracted driving on traffic safety
Authors: Liang Xingcan 
Published: November 2020

Abstract
Nowadays, with the popularity of electronic devices such as navigation systems, smartphones, and other in-vehicle systems, the number of factors triggering distracted driving is increasing, making distracted driving one of the significant causes of traffic accidents. This paper attempts to summarize the present research situation of the impact of distracted driving on traffic safety, highlights the research methods and trends, then proposes future research directions.
Development brushless direct current electric motor of the Pilger mill drive for the technology of seamless pipes manufacturing based on the magnetic system with claw-poles
Authors: Kosimov Bakhtiyor , Gandzha Sergey , Aminov Dilshod , Davlatov Azamdhon , Gulov Dilovar , Abdulloev Ilbom 
Published: November 2020

Abstract
Currently, metallurgical industry contains a large number of morally and physically outdated electrical equipment that requires modernization. It requires a large capital expenditure to replace it. For this reason, it is slow to implement, long-term use for the purpose of payback, and slow to withdraw from manufacturing. In this regard, the new equipment must be innovative and in many respects ahead of the existing level of development of the industry. The article suggests such a solution. To replace the existing collector motor of the pilger mill drive for the manufacturing of seamless pipes, which has been operating since 1928 and is in a critical condition, a large-sized low-speed brushless motor with a large built-in inertial mass is proposed, which has a permanent magnet magnetic system and claw-poles. Such a technical solution for drives of this class has not been used in the world. The motor eliminates the existing 120-ton flywheel, improves reliability due to contactless current supply, and reduces operating costs by eliminating excitation losses. The motor design allows its Assembly without additional tooling, which is very important for large motors with permanent magnets. To develop a unique motor, a design system consisting of a synthesis subsystem and an analysis subsystem was created. The synthesis subsystem implements multi-level single-criteria optimization. As a result of its operation, the optimal geometry is determined based on the selected criterion. The analysis system confirms the calculation reliability using simplified optimization methods and finally removes technical risks before manufacturing an industrial design. It is based on the well-developed Ansys Electronics Desktop and Ansys Icepak systems for CAE electric machines. The analysis has several stages, which includes electromagnetic and thermal analysis. It is based on the well-developed for CAE systems electric machines Ansys Electronics Desktop and Ansys Icepak. The analysis has several stages, which includes electromagnetic and thermal analysis. The effectiveness of the design system was tested on a real project that was performed for the Chelyabinsk rolling mill. This approach is recommended for the design of other similar types of brushless direct current drive.
Electrochemical deposition of a radionuclide nickel-63 on betavoltaic cells for a nuclear battery based on silicon p-i-n junctions
Authors: Ershova N A , Krasnov A A , Legotin S A , Rogozev B I , Murashev V N 
Published: November 2020

Abstract
This paper highlights the manufacturing process of two types of betavoltaic cells with a source coated with 63Ni: the flat one and one with a three-dimensional (3D) microchannel structure, obtained by anodizing silicon (Si). Thin-layer deposition of a nickel-63 radionuclide was carried out from the ammonium-citrate based electrolyte solution, designed for production until exhaustion.
Induction heating system for die tooling of press for isothermal stamping of large-sized parts
Authors: Frizen V. , Tarasov F , Bychkov S. , Fatkullin S. , Sarapulov S. 
Published: November 2020

Abstract
The paper describes the installation for stamping large-sized parts. The use of induction heating for heating the working tool of the stamp in the operating mode is considered. A system with 4 flat inductors is described. This solution allows for the most efficient hot stamping operation compared to other known solutions. An example of the result of numerical simulation of the temperature field distribution is demonstrated.
Issues of induction sorting of scrap and waste of non-ferrous metals
Authors: Zyazev M E , Lyampasova E S , Abdullaev Z O , Yu Konyaev A 
Published: November 2020

Abstract
Nowadays, one of the main economic advantages is using secondary raw materials for the production of useful materials for further use. The greatest environmental and economic effect provides the use of secondary non-ferrous metals. Eddy-current separation based on interaction force of a magnetic field with eddy currents induced by this field in conducting particles, is the most effective for the recycling of non-ferrous metals. The paper is devoted to the problem of non-ferrous metals sorting. The research results of the number of traveling magnetic field separators designs are described. The ways of improving separation efficiency are shown. Eddy-current separators can be used as stand-alone solutions, and in combination with shredder and classifying systems, in a variety of recycling plants and at metallurgical enterprises for non-ferrous metals refinement.
Liquid metal free surface dynamics in rotating permanent magnet stirrer
Authors: Dzelme V , Jegorovs A , Jakovics A 
Published: November 2020

Abstract
We study liquid metal stirring by rotating permanent magnets in a laboratory-scale rectangular glass container. The main goal is numerical model validation using experimental free surface shape data. We find reasonable agreement between the experiments and coupled liquid metal magnetohydrodynamics simulations. Since the surface tension forces are not dominant here, free surface is deformed mainly by the dynamic pressure of the bulk flow. Therefore, we can conclude that not only the free surface profile is similar to experiments, but the bulk flow must be also very similar.
Machine learning application for magnetohydrodynamic pump research
Authors: Tarchutkin N V , Smolyanov I A 
Published: November 2020

Abstract
The article is devoted to finding out best machine learning model used for the analysis of magnetohydrodynamic pump. The machine learning model was created on the basis of data obtained as a result of numerical simulation of the unit using COMSOL Multiphysics. The paper compares errors of output data collected by using various machine learning methods for out-of-sample data.
Mathematical modeling of mutual operation of superconductive devices in autonomous power engineering
Authors: Chubraeva L I , Timofeyev S S , Lazerko V A 
Published: November 2020

Abstract
The paper presents results of mathematical modeling of mutual operation of electromechanical energy converters: high temperature superconductive (HTSC) synchronous generators and motors. It includes modes of operation of synchronous alternator and synchronous motor, mutual operation of alternators of comparable rating in an autonomous energy installation, mutual operation of synchronous HTSC motor and semi-conductive converter, influence of semi-conductive converter on the loss value in HTSC armature windings. In all cases specific features of HTSC electrical machines and their parameters and peculiarities of HTSC windings are accounted for with imposed restrictions on the current and magnetic flux variation velocity.
Method for modeling the modes of induction heating of turbine blades
Authors: Lepeshkin A R , Kuvaldin A B , Lepeshkin C A , Guanghua Z , Nazarov V V , Ilinskaya O I 
Published: November 2020

Abstract
In this paper there are offered calculated and experimental methods of simulating the high-speed modes of induction heating and designing the new inductor to provide the preset nonuniform thermal and thermostress state for cooled and uncooled blades of gas-turbine engine by changing the inductor width (specific power of induction heating). The peculiarity of this technique is the possibility of conducting the thermal cyclic tests of gas-turbine-engine parts with remaining the guaranteed minimal constant clearance between inductor and blade surface that reduces the probability of temperature-field distortion in changing the blades and promotes the efficiency enhancement of induction heating. Obtained results were used to conduct the tests of blades of gas-turbine-engine turbine. Carried out tests at this set with using the high-speed modes of induction heating helped to reveal quickly required changes in the blade structure.
Research of various inductors configurations for heating titanium slabs
Authors: Shmakov Evgeniy , Frizen Vasiliy , Nikolaev Dmitriy 
Published: November 2020

Abstract
In this paper various inductors configurations for heating a titanium slab, as well as the influence of frequency changes on efficiency of inductors are considered. The calculations are carried out by means of finite element method. In this research a three-dimensional time-harmonic model in A-formulation of Maxwell’s equations is used. In the framework of this work, only electromagnetic problem was calculated, since the main aim of this work is to assess the effectiveness of inductor configurations in terms of electromagnetic problem. Efficiency of inductor and the uniformity coefficient introduced herein have been chosen as the comparison parameters. Ultimately, distribution of electromagnetic power density in the workpiece is shown, also conclusions are drawn for each of inductor configurations.
High voltage electric power supply system with contactless power take-off
Authors: Frizen V , Antipin A , Lapin A , Udintsev V 
Published: November 2020

Abstract
Autonomous power supplies of light marking, monitoring, relay protection and emergency control systems of digital high voltage networks are considered, in particular, capacitive power take-offs from high-voltage three-phase power lines with voltage of 110 and 220 kV. Energy is collected in the immediate vicinity of the equipment, ensuring its operation without laying a separate power supply network and with minimal human involvement. The results of the analysis show a rather high technical and economic efficiency of the considered power supply system.
Development of a Physiologically Based Pharmacokinetic Model for Prediction of Ethanol Concentration-Time Profile in Different Organs
Authors: Sadighi Armin , Leggio Lorenzo , Akhlaghi Fatemeh 
Published: November 2020

Abstract

Aims
A physiologically based pharmacokinetic (PBPK) modeling approach was used to simulate the concentration-time profile of ethanol (EtOH) in stomach, duodenum, plasma and other tissues upon consumption of beer and whiskey under fasted and fed conditions.

Methods
A full PBPK model was developed for EtOH using the advanced dissolution, absorption and metabolism (ADAM) model fully integrated into the Simcyp Simulator® 15 (Simcyp Ltd., Sheffield, UK). The prediction performance of the developed model was verified and the EtOH concentration-time profile in different organs was predicted.

Results
Simcyp simulation showed ≤ 2-fold difference in values of EtOH area under the concentration-time curve (AUC) in stomach and duodenum as compared to the observed values. Moreover, the simulated EtOH maximum concentration (Cmax), time to reach Cmax (Tmax) and AUC in plasma were comparable to the observed values. We showed that liver is exposed to the highest EtOH concentration, faster than other organs (Cmax = 839.50 mg/L and Tmax = 0.53 h), while brain exposure of EtOH (AUC = 1139.43 mg·h/L) is the highest among all other organs. Sensitivity analyses (SAs) showed direct proportion of EtOH rate and extent of absorption with administered EtOH dose and inverse relationship with gastric emptying time (GE) and steady-state volume of distribution (Vss).

Conclusions
The current PBPK model approach might help with designing in vitro experiments in the area of alcohol organ damage or alcohol-drug interaction studies.
Tyranny in America, or, theAppeal to the Coloured Citizens of the World
Authors: Duquette Elizabeth 
Published: November 2020

AbstractLocating the Appeal to the Coloured Citizens of the World within a tradition of antityranny writing from antiquity through the Declaration of Independence, this article traces David Walker’s precise redefinition of the relationship between tyranny and slavery. Rejecting the longstanding idea that enslavement is a social, rather than a political, institution, Walker points to the pernicious effects of representing tyranny as a kind of enslavement, particularly when coupled with the denial that slavery is a form of tyranny. In tandem with its vehement denunciations, the Appeal offers a nuanced argument that American slavery is nothing other than tyranny; those suffering under its abuses have both a right and a duty to rebel against its abuses.