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research-article

THERMAL IMPROVEMENT IN RESIDENTIAL BUILDINGS IN VIEW OF THE INDOOR AIR QUALITY – CASE STUDY FOR POLISH DWELLING

exhaust air flow will decrease, which will be cause of worse indoor climate conditions in dwelling. The air change rate calculated on the basis of the measured flow exhaust air volume and knowledge of volume of dwelling is within the range of n = 0.18÷0.3 h-1. This value is lower than the recommended minimum of 0.5 h-1. The low value of the air change rate is the cause of high concentrations of CO2 as described earlier. 3. NUMERICAL SIMULATION Although the assessment of air exchange in an apartment

Monika BLASZCZOK, Andrzej BARANOWSKI

Architecture, Civil Engineering, Environment , ISSUE 3, 121–130

Research Article

The wheel-rail contact friction influence on high speed vehicle model stability

Mirosław DUSZA

Transport Problems , ISSUE 3, 73–86

Article

THE IMPACT OF PRIMARY SUSPENSION STIFFNESS OF 2-AXLE BOGIE OF MKIII PASSENGER CAR ON ITS DYNAMICAL BEHAVIOUR

Krzysztof ZBOINSKI, Milena GOLOFIT-STAWINSKA

Transport Problems , ISSUE 1, 135–146

Research paper

SIMULATION STUDIES ON A NEW INTELLIGENT SCHEME FOR RELATIVE HUMIDITY AND TEMPERATURE MEASUREMENT USING THERMISTORS IN 555 TIMER CIRCUIT

relative humidity and ambient temperature by an appropriately trained Artificial Neural Network (ANN). The performance of the arrangement has been evaluated by numerical simulation studies using thermistor data from manufacturer’s table. Significantly good results have been obtained.

Debangshu Dey, Sugata Munshi

International Journal on Smart Sensing and Intelligent Systems , ISSUE 2, 217–229

Research Article

NUMERICAL SYNTHESIS OF THE TRACK ALIGNMENT AND APPLICATIONS. PART II: THE SIMULATION OF THE DYNAMIC 
BEHAVIOUR IN THE RAILWAY VEHICLES

Summary. This paper features a method of synthesizing the track irregularities by which the alignment may be analytically represented by a pseudo-stochastic function, as well as the implementation of such a method in the numerical simulation of the dynamic behaviour of the railway vehicles. The method described in Part I relies on the power spectral density of the track irregularities, as per ORE B 176 and the specifications included in UIC 518 Leaflet regarding the

Mădălina DUMITRIU

Transport Problems , ISSUE 2, 5–16

Article

The Study of Following Behavior to Bi-direction Pedestrian Flow with the Dynamic Preconscious Effect

In view of the preconscious behavior of pedestrian and walking speed differences, a lattice gas model of bi-direction pedestrian flow is established in this paper. According to the characteristics of pedestrian following behavior and preconscious dynamic change in different walking conditions, bi-direction pedestrian behavior model based on dynamic preconsciousness is constructed to study the bias decision-making behavior of pedestrian movement. Through numerical simulation, the influence of

Xin Tang, Xueyu Zhao, Lin Pan, Jiying Wang, Yi Yang

International Journal of Advanced Network, Monitoring and Controls , ISSUE 3, 109–115

Article

NUMERICAL ANALYSIS OF SLIDING FRICTION COEFFICIENT AND THE NORMAL PRESSURE BETWEEN THE CABLE WIRE

positive pressure, provides a method and basis for the practical engineering of steel wire in the ultimate friction shear stress accurately, set up and stay cable as layered slipping model provides important parameters of bending stress analysis. From the numerical simulation method analyzes the positive pressure parallel wire between the start. This paper first parallel wire contact problem of two cables are analyzed with the classical theoretical solution and the FEM software ANSYS, to verify the

Zhu Hui-ling, Zhu Xin-yin, Wang Yu-lin

International Journal on Smart Sensing and Intelligent Systems , ISSUE 4, 1773–1788

Research Article

CHARACTERIZATION OF CRACKS AND DELAMINATIONS USING PWAS AD LAMB WAVE BASED TIME-FREQUENCY METHODS

numerical simulation to validate the experimental results. Time-frequency analysis techniques, namely Wavelet Transform (WT) and Hilbert Huang transform (HHT) are used to study the experimental signals and their performances were compared. This study provides significant insight into the problem of identifying localized damages in the structure using integrated PWAS and dispersion of multi-frequency signal after they interact with different types of damage.

R. Gangadharan, C.R.L. Murthy, S. Gopalakrishnan, M.R. Bhat, D. Roy Mahapatra

International Journal on Smart Sensing and Intelligent Systems , ISSUE 4, 703–735

Research Article

Numerical Synthesis of the Track Alignment and Applications. Part I: The Synthesis Method

This paper features a method to synthesize the track irregularities, by which the alignment may be analytically represented by a pseudo-stochastic function, as well as the implementation of such method in the numerical simulation of the dynamic behaviour of the railway vehicles. The method thus suggested allows a convenient formulation of the limits of the interval specific to the wavelengths of the track lateral irregularities, so that it will be representative for the frequency range of the

Mădălina DUMITRIU

Transport Problems , ISSUE 1, 19–28

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