133 Real-size CT slices to optimize brachytherapy treatments in vaginal moulds using 192-IR

The paper presents an application the research results previously done by group on the influence of technological parameters to the deformation angle and finish surface quality in order to choose technology parameters for the incremental sheet forming (ISF) process to produce products for the purpose of rapid prototyping or single-batch production, including all steps from design and process 3D CAD model, calculate and select the technological parameters, setting up manufacturing and the stage of post-processing. The samples formed successfully showed high applicability of this technology to practical work, the complex products with the real size can be produced in industries: automotive, motorcycle, civil...

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China: "A Bee Has a Stripy Back, but No One Can Call It a Tiger"

Voprosy Ekonomiki ◽

10.32609/0042-8736-2003-3-61-75 ◽

2003 ◽

pp. 61-75

Author(s):

V. Guelbras

Keyword(s):

Energy Consumption ◽

Gdp Growth ◽

International Demand ◽

Real Size ◽

Rates Of Growth

The article is devoted to verification of the Chinese GDP data. The author compares the rates of GDP growth with the rates of growth of energy consumption, transport turnover of goods, and numbers of projected and constructed objects in 1980-2000. The former was significantly lower during that period. He also analyses the level of using productive capacities and the quality of production. About 25-30% of industrial productive capacities are not used because there is neither national nor international demand for their low quality goods. The main conclusion of the article is that the Chinese GDP real size is about 20-30% less than official releases.

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On the Effectiveness of National Resources Utilization

Voprosy Ekonomiki ◽

10.32609/0042-8736-2003-8-31-40 ◽

2003 ◽

pp. 31-40

Author(s):

N. Fedorenko ◽

V. Simchera

Keyword(s):

Resource Potential ◽

Low Level ◽

Real Size

The authors are of the opinion that in order to answer the question of Russia's resource potential utilization it is necessary to measure national resources, estimate their real size, the degree of their assimilation and effectiveness. Coefficients of resource potential assimilation are considered, which suggest not only its low level but also the absence of corresponding demand. For making specific decisions aimed at increasing the level of resources utilization the authors propose a number of measures.

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Limitations of Nanoparticles Size Characterization by Asymmetric Flow Field‑Fractionation Coupled with Online Dynamic Light Scattering

Chromatographia ◽

10.1007/s10337-020-03997-7 ◽

2021 ◽

Author(s):

Francesco Giorgi ◽

Judith M. Curran ◽

Douglas Gilliland ◽

Rita La Spina ◽

Maurice Whelan ◽

...

Keyword(s):

Light Scattering ◽

Dynamic Light Scattering ◽

Flow Field ◽

Field Flow Fractionation ◽

Asymmetric Flow ◽

Uv Detector ◽

Elution Time ◽

On Line ◽

Real Size ◽

Flow Fractionation

AbstractThe development of reliable protocols suitable for the characterisation of the physical properties of nanoparticles in suspension is becoming crucial to assess the potential biological as well as toxicological impact of nanoparticles. Amongst sizing techniques, asymmetric flow field flow fractionation (AF4) coupled to online size detectors represents one of the most robust and flexible options to quantify the particle size distribution in suspension. However, size measurement uncertainties have been reported for on-line dynamic light scattering (DLS) detectors when coupled to AF4 systems. In this work we investigated the influence of the initial concentration of nanoparticles in suspension on the sizing capability of the asymmetric flow field-flow fractionation technique coupled with an on-line dynamic light scattering detector and a UV–Visible spectrophotometer (UV) detector. Experiments were performed with suspensions of gold nanoparticles with a nominal diameter of 40 nm and 60 nm at a range of particle concentrations. The results obtained demonstrate that at low concentration of nanoparticles, the AF4-DLS combined technique fails to evaluate the real size of nanoparticles in suspension, detecting an apparent and progressive size increase as a function of the elution time and of the concentration of nanoparticles in suspension.

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Preliminary Results on the Dynamics of a Pile-Moored Fish Cage with Elastic Net in Currents and Waves

Journal of Marine Science and Engineering ◽

10.3390/jmse9010014 ◽

2020 ◽

Vol 9 (1) ◽

pp. 14

Author(s):

Gianluca Zitti ◽

Nico Novelli ◽

Maurizio Brocchini

Keyword(s):

Numerical Model ◽

Laboratory Experiments ◽

Numerical Models ◽

Offshore Structures ◽

Fish Farm ◽

Maximum Displacement ◽

Drag Forces ◽

Real Size ◽

Lift And Drag ◽

Mesh Grid

Over the last decades, the aquaculture sector increased significantly and constantly, moving fish-farm plants further from the coast, and exposing them to increasingly high forces due to currents and waves. The performances of cages in currents and waves have been widely studied in literature, by means of laboratory experiments and numerical models, but virtually all the research is focused on the global performances of the system, i.e., on the maximum displacement, the volume reduction or the mooring tension. In this work we propose a numerical model, derived from the net-truss model of Kristiansen and Faltinsen (2012), to study the dynamics of fish farm cages in current and waves. In this model the net is modeled with straight trusses connecting nodes, where the mass of the net is concentrated at the nodes. The deformation of the net is evaluated solving the equation of motion of the nodes, subjected to gravity, buoyancy, lift, and drag forces. With respect to the original model, the elasticity of the net is included. In this work the real size of the net is used for the computation mesh grid, this allowing the numerical model to reproduce the exact dynamics of the cage. The numerical model is used to simulate a cage with fixed rings, based on the concept of mooring the cage to the foundation of no longer functioning offshore structures. The deformations of the system subjected to currents and waves are studied.

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Designing an Artificial Intelligence Control Program Model to be Tested and Implemented in Virtual Reality for Automated Chevrolet Camaro

Proceedings ◽

10.3390/proceedings2020063044 ◽

2020 ◽

Vol 63 (1) ◽

pp. 44

Author(s):

Lavinia Andrei ◽

Doru-Laurean Baldean ◽

Adela-Ioana Borzan

Keyword(s):

Artificial Intelligence ◽

Virtual Reality ◽

Control Program ◽

Specific Model ◽

Virtual Model ◽

Program Model ◽

Real Size ◽

Virtual Modeling ◽

And Robotics ◽

Virtual Reality Application

A control program was designed with Unity 5 virtual reality application in the automotive and robotics field. Thus, a virtual model of a robotic car was tested in a virtual reality program. After optimization, the smart controller was implemented on a specific model of the automated Chevrolet Camaro. The main objective of the present paper is to design a control program model to be tested in virtual reality and in a real-size car. Results concerning the virtual modeling of an automated car and its artificial intelligence controls have been presented and discussed, outlining the forces, torques, and context awareness capabilities of the car.

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Performance evaluation of metaheuristic search techniques in the optimum design of real size pin jointed structures

Computers & Structures ◽

10.1016/j.compstruc.2009.01.002 ◽

2009 ◽

Vol 87 (5-6) ◽

pp. 284-302 ◽

Cited By ~ 130

Author(s):

O. Hasançebi ◽

S. Çarbaş ◽

E. Doğan ◽

F. Erdal ◽

M.P. Saka

Keyword(s):

Performance Evaluation ◽

Optimum Design ◽

Search Techniques ◽

Metaheuristic Search ◽

Real Size

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Acoustic Emission Testing of Concrete Frame during Pseudo Dynamic Loading

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.13-14.195 ◽

2006 ◽

Vol 13-14 ◽

pp. 195-200

Author(s):

Athanasios Anastasopoulus ◽

S. Bousias ◽

A. Tsimogiannis ◽

T. Toutountzakis

Keyword(s):

Acoustic Emission ◽

Dynamic Testing ◽

Frame Structure ◽

Scale Model ◽

Reinforced Concrete Frame ◽

Energy Rate ◽

Concrete Frame ◽

Emission Testing ◽

Real Size ◽

Acoustic Emission Testing

Acoustic Emission (AE) monitoring was performed during Pseudo-Dynamic Testing of a torsionally unbalanced, two-storey, one-by-one bay reinforced concrete frame structure. The structure represented a 0.7-scale model of a real-size frame structure designed and detailed according to the standards prevailing in Greece in 60's, without engineered earthquake resistance. Real time monitoring of AE activity versus the complex applied load resulted in semi quantitative damage characterization as well as comparative evaluation of the damage evolution of the different size columns. Evolution of the AE energy rate per channel, as revealed from zonal location, and the energy rate of linearly located sources enabled the identification of damage areas and the forecast of crack locations before cracks were visible with naked eye. In addition to that, the results of post processing evaluation allowed for the verification of the witnessed damaged areas and formed the basis for quantitative assessment of damage criticality.

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Reliability approach for the side resistance of piles by means of the total stress analysis (α Method)

Canadian Geotechnical Journal ◽

10.1139/t07-061 ◽

2007 ◽

Vol 44 (11) ◽

pp. 1378-1390 ◽

Cited By ~ 7

Author(s):

C. Cherubini ◽

G. Vessia

Keyword(s):

Stress Analysis ◽

Undrained Shear Strength ◽

Clayey Soils ◽

Total Stress ◽

First Order ◽

Side Resistance ◽

Reliability Method ◽

Real Size ◽

Bored Piles ◽

Adhesion Factor

The evaluation of the pile–soil adhesion plays a fundamental role in the estimation of the side resistance for total stress analysis. Over the years, researchers have presented proposals for adhesion factor formulations even though only a few of them have shown a certain agreement in numerical and (or) methodological terms. Hence, several real-size experimental analyses have improved the understanding of the pile–soil adhesion phenomenon and mechanism. Nevertheless, the undrained shear strength (cu) values depend on the experimental technique employed. Such results force engineers to make a difficult choice among various formulations. A reliability analysis is performed in this paper to take into consideration the variations in formulations and values of the side resistance of bored piles in clayey soils. This study involves piles having different lengths and diameters, which are supposed to be bored in Matera clays. Such soil is characterized by means of laboratory investigation campaign, and its mechanical and stochastic main features are reported here. Values of reliability index β are calculated by means of the first-order reliability method.

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