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The annual International Scientific Applied Conference "Problems of Emergency Situations" is organized by the National University of Civil Defence of Ukraine (Ukraine, Kharkiv).
This year, the representatives from the Odessa State Academy of Civil Engineering and Architecture (Ukraine, Odessa) were involved as partners.
The purpose of the conference was to discuss issues related to the problems and prospects of the introduction of the latest developments and technologies aimed at preventing emergencies, minimizing their consequences in the field of civil defence, sharing experience and finding new facets of scientific cooperation, solving problems of emergencies that create a global threat to humanity.
Steel, Alloy, Polymer, Composite, Fire Resistance, Dispersed Materials, Structurally Inhomogeneous Materials, Hydrogel, Fire Extinguishing, Fire Safety, Coating, Surface Engineering, Aerosol, Environmental Protection, Building Materials, Concrete, Wood, Explosin Safety, Nuclear Safety, Radiation, Structural Mechanics, Structural Element, Mechanical Properties, Accident Prevention, Risk Management, Machines, Equipment, Emergency

Application of Constant Modulus Algorithm on the Civil Aviation VHF radio interference suppression Yang Yunhui1a, Ji Yiping2 1School of Computer Science and Software Engineering，Tianjin Polytechnic University,Tianjin, China 2School of Textiles，Tianjin Polytechnic University,Tianjin, China ayang.yh@163.com Keywords:Component; VHF；CM Algorithm；Adaptive Interference Canceling Abstract.In the Air Traffic Control (ATC) communication system of Civil Aviation, the radio interference has become a big problem to the safety of the flight airplanes in recent years.
The study has very important practical value because our research work is doing around the difficulties disturbing civil air management department.
ATC communication systems of Civil Aviation are mainly completed by VHF radio.
The main interference impact on the civil aviation VHF radio is: same frequency interference, intermodulation interference and spurious radiation［1］［2］.
But in the ATC communication system of Civil Aviation, we can’t get the training signal easily.

Constructional engineering contracts contain engineering investigation contracts, design contracts and construction contracts.
According to the rules of General Provisions of Civil Law and Law of Contract, principle of equality, principle of voluntarism, fairness, compensation of equal value and good faith, principle of civil rights and interests protected by law, principle of prohibiting abuse of rights and principle of negotiated consensus are the fundamental principles to engage in civil activities and to conclude contracts.
As a kind of civil contract, construction contract can’t be exceptive, which should follow above fundamental principles.
If both parties have determined the valuation standards and methods of engineering settlement which are not against legal rules, the payment of engineering settlement should be according to the contracts.
References [1] Fang Lichu, Bridge engineering, Beijing: the People’s Communication Publishing House, 2009

The Effect of Belly-flap on Aerodynamic Performance of Blended Wing Body Civil Aircraft CAI Chen Fang1, a, QIN Yong Ming1,b and WU Jiang Hao2,c (Corresponding author) 1China academy of aerospace aerodynamics, Beijing, P R China 2School of Transportation Science and Engineering, Beihang University, Beijing, P R China accf@dae.buaa.edu.cn, bqymincaaa@sina.com, cbuaawjh@buaa.edu.cn Keywords: Blended wing body, Aerodynamic Performance, Belly-flap, Gust Abstract.
It is suggested the optimized design of Belly-flap should be done if the Belly-flap is applied in BWB civil aircraft.
Introduction Blended-wing-Body (BWB), as a new layout used in civil aircraft design, is concerned by researchers.
So, the optimized design of Belly-flap should be done if the Belly-flap is applied in BWB civil aircraft.
It is suggested the optimized design of Belly-flap should be done if the Belly-flap is applied in BWB civil aircraft.

Keywords: Tack, brick and mortar, adherence, civil construction.
The civil construction industrial sector is one of the most important in Brazil both for job opportunity and amount of utilized materials.
The cement curing time is an important parameter in civil construction and recommend by specific norm [4].
All tests and experiments were conducted in the Laboratory of Civil Engineering, LECIV, of the Center for Science and Technology, CCT, of the State University of the Northern Rio de Janeiro, UENF, located in the city of Campos dos Goytacazes, Brazil.
In: Proceedings of 17th National Meeting of Production Engineering, Gramado, Brazil, 1997. p. 1-10

A Method for Computing Flight Track in Simulation and Reconstruction Huabo Sun, Minzhu Zhong, Liling Yu Institute of Aviation Safety, China Academy of Civil Aviation Science and Technology, Beijing 100028, P.R.China sunhb@mail.castc.org.cn Keywords: simulation technology, civil aviation security, flight track computing.
Research of Virtual Instrument Simulation Technology Based on 3D Terrain[J], Journal of Sichuan University of Science & Engineering (Natural Science Edition), 2010, 23(2):178-180
Study on Washout Algorithm for Flight Simulator [J], Journal of Civil Aviation University of China, 2005, 23(4):37-41
Trajectory Calculation and Analysis of Airplane in En-Route [J], Journal of Civil Aviation University of China, 2003, 21(4):13-16
Study on Key Trajectory Prediction Techniques of Civil Aviation Aircraft [J], Journal of Civil Aviation University of China, 2007, 25(1):20-24

The aim of this paper is to compare two modifications of this technology and determine which one is more suitable for the production of nanotextiles for civil engineering applications.
For the civil engineering applications it is important for the fabric to be as homogeneous at macroscale as possible, so that properties of different parts of the fabric are approximately equal.
Nanotextile from polyvinyl alcohol (PVA) were produced on Faculty of Civil Engineering CTU in Prague by Nanospider with rotating cylindrical electrode.
Thus, it is possible that PVB is not suitable for civil engineering applications but further research is required.
The homogeneity of the nanotextile is one of the most important properties required for its successful application in civil engineering.

The 2025 Annual International Conference Actual Problems of Engineering Mechanics (11th APEM) was the 11th meeting in this series.
The conference was organised by the Odessa State Academy of Civil Engineering and Architecture (Ukraine, Odesa).
Colleagues from the National University of Civil Defence of Ukraine, the Slovak University of Technology (Slovakia), RWTH Aachen University (Germany), the University of Sannio (Italy), the Polytechnic University of Valencia (Spain), and the Warsaw University of Technology (Poland) were involved as partners in the conference.

Study on Recycling Utilization of Waste Concrete Yulan Wang Department of Architecture and Material Engineering, Hubei University of Education, Wuhan, Hubei, 430205,China frienfriensunshine@hotmail.com Keywords: Waste Concrete, Recycled Concrete, Recycled Concrete Aggregate, Civil Engineering, Environmental Protection, Saving Resources, Sustainable Development Abstract.
At the same time, civil engineering construction, earthquakes and wars also can generate a large number of waste concrete.
Meanwhile, in the process of civil engineering construction and production of ready-mixed concrete, because of product quality and human factors, also produced a certain amount of waste concrete.
References [1] Guangyao Sun, Cailing Jia, Chuandong Li, Liangliang Cai and Zhenzi Jing: submitted to Journal of New Building Materials (2013) (In Chinese) [2] Shouchang Deng, Xuebing Zhang and Yingshe Lou: submitted to Journal of Concrete (2006) (In Chinese) [3] Rui Liang, Jiang Yu and Yongjun Qin: submitted to Journal of Concrete (2013) (In Chinese) [4] Hao Xu : submitted to Journal of Architecture Technology (2001) (In Chinese) [5] Chao Liu, Guoliang Bai, Shengwei Jia and Lei Yin: submitted to Journal of China Civil Engineering Journal (2013) (In Chinese) [6] Yujiang Fan, Sheliang Wang, Yang Yu and Bo Zhang: submitted to Journal of Experimental Mechanics(2013) (In Chinese) [7] Youkai Peng, Hui Wu and Quanchen Gao: submitted to Journal of Southeast University (2013) (In Chinese)

Human settlements are closely linked with civil construction.
Various facilities for human living and production in modern society are all built through civil engineering projects, including houses, shops, roads and bridges.
Architectural materials are closely related to civil engineering and human settlements.
Civil Engineering Materials.
Civil Engineering Materials (2nd edition).