FIRST FEASIBILITY STUDY FOR EXL WITH PROTOTYPE DETECTORS AT THE ESR AND DETECTOR SIMULATIONS

2009 ◽  
Vol 18 (02) ◽  
pp. 524-530 ◽  
Author(s):  
◽  
N. KALANTAR-NAYESTANAKI ◽  
H. MOEINI ◽  
M. MAHJOUR-SHAFIEI ◽  
F. AKSOUH ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Detection System ◽  
Hydrogen Gas ◽  
Gas Jet ◽  
The Future ◽  
Simulation Results

This contribution presents some results from the first feasibility measurement performed at GSI using a 350 MeV/nucleon 136 Xe beam and a Hydrogen gas-jet target. In this feasibility study, one element of every possible detection part of the future EXL detection system was investigated. In addition, simulation results for EXL setup will be presented.

scholarly journals Ultrasound detection using optical interferometry

2021 ◽  
Author(s):  
Nusrat Jahan Surovy
Keyword(s):  
Thin Film ◽  
Ultrasound Imaging ◽  
Detection System ◽  
Incidence Angle ◽  
Low Cost ◽  
3D Ultrasound ◽  
Attractive Alternative ◽  
Simulation Results ◽  
Exerted Pressure ◽  
Piezoelectric Devices

Ultrasound imaging is a widely used noninvasive imaging technique for biomedical and other applications. Piezoelectric devices are commonly used for the generation and detection of ultrasound in these applications. However, implementation of two-dimensional arrays of piezoelectric transducers for 3D ultrasound imaging is complex and expensive. Optical Fabry-Perot interferometry is an attractive alternative to the piezoelectric devices for detection of ultrasound. In this method a thin film etalon is constructed and used. Light reflected from the two surfaces of this thin film produces an intensity which depends on the film thickness. When ultrasound is incident on the film, it changes the thickness of the film and consequently modulates the light intensity on the film. In our work, we made two types of etalon (Finesse 2) for our experiment. We detected lower frequency ultrasound (0.5 MHz or 1 MHz) using the build etalon. We determined a linear relationship between the strength of the optical signals and the exerted pressure on a film by the ultrasound. The dependence of the etalon performance on the light wavelength was demonstrated indirectly by measuring the signal at various light incidence angle. Simulation results are also presented. Lastly, we proposed the optimum design of this detection system based on the simulation results. This method of ultrasound detection can be a potential low-cost approach for 3D ultrasound imaging.

A Feasibility Study on Occupants' Behaviour and Energy Usage Patterns and Its Potential Integration With Building Information Modelling

2019 ◽  
pp. 560-570
Author(s):  
Liangxiu Han ◽  
Haşim Altan ◽  
Masa Noguchi
Keyword(s):  
Energy Consumption ◽  
Feasibility Study ◽  
Energy Usage ◽  
Building Information Modelling ◽  
Information Modelling ◽  
Energy Prediction ◽  
The Future ◽  
Building Information ◽  
Usage Patterns ◽  
Major Factors

Understanding how occupants manage their energy use in homes and how their behaviour influence household energy consumption in domestic environments has been challenging. There seems to be several major factors contributing towards achieving optimal performance in designing, constructing and maintaining a sustainable home using Building Information Modelling (BIM) based approaches. This study focuses on investigating the relationship between user behaviour and energy consumption through the in-depth analysis of energy usage patterns collected from a selected affordable terraced house in Prestwick, Scotland, as an initial attempt towards the future integration with BIM systems. For the purpose of this feasibility study, indoor temperature, relative humidity and CO2 sensors, as well as a gas-electricity-water utility monitor were installed in the selected home occupied by a working class nuclear household. The study encompasses the analyses of energy usage patterns in their daily life. It is confirmed that domestic energy consumption is affected by the occupants' presence and behaviour. Moreover, this paper discusses a possibility that the energy prediction approach taken in this study could work alongside BIM systems applied for housing suppliers' design decision-making on the delivery of energy efficient homes of the future.

Current R & D Activities in the Study on Geosphere Stability

2010 ◽  
Author(s):  
Takahiro Hanamuro ◽  
Ken-Ichi Yasue ◽  
Yoko Saito-Kokubu ◽  
Koichi Asamori ◽  
Tsuneari Ishimaru ◽  
...  
Keyword(s):  
Prediction Model ◽  
Hot Spring ◽  
Active Faults ◽  
Hydrogen Gas ◽  
Helium Isotope ◽  
Sea Level Changes ◽  
Detection Techniques ◽  
Geothermal Activity ◽  
The Future

The Japanese islands are located in a tectonically active zone. The scientific base is required for assessing the geosphere stability for long-term isolation of radioactive waste in Japan. JAEA is promoting the establishment of investigation method for geotectonic events affecting geosphere stability and prediction model for the future changes of geological environments, that is necessary for site selection and safety assessment of the HLW geological disposal. For seismicity and faulting, detection techniques for active faults without topographic surface expression, such as using helium isotope ratios in hot spring gases or detection of hydrogen gas, and studies on the assessment of fault evolution have been developed. For volcanism and geothermal activity, heat sources for anomalous geothermal activity in non-volcanic regions are considered. Detection techniques for high-temperature fluids and magma deep underground, using geophysical and geochemical approaches, were constructed. For uplift, denudation and climatic/sea-level changes, a methodology to predict the future topographic change was developed. Also, for dating techniques as an essential part to proceed on these studies, C-14 and Be-10 dating using AMS and (U-Th)/He dating using QMS and ICP-MS have been developed. We are planning the establishment of assessment methods for geosphere stability including assessment of the activity of faults encountered in underground excavations, development of long-term prediction model of volcanism and hydrothermal activities, and hydrogeological analyses considering topographic change.

Multi-Sensor N-P Criterion Fusion Detection Based on Weighting by SNR

2014 ◽  
Vol 1044-1045 ◽  
pp. 818-824
Author(s):  
Bo Fan Yang ◽  
Rui Wang ◽  
Gang Wang ◽  
Li Zhao
Keyword(s):  
Signal Detection ◽  
False Alarm ◽  
Sensor Fusion ◽  
Detection Probability ◽  
Detection System ◽  
False Alarm Probability ◽  
Radar Target ◽  
Low Snr ◽  
Simulation Results ◽  
Fusion Detection

Aiming at signal detection of radar target, concerning about on the basis of the influence of SNR on detection probability when false alarm probability is given based on N-P criterion, a kind of multi-sensor fusion detection based on SNR is put forward. It can improve system’s detection probability under the condition of required false alarm probability in the detection of low SNR signal. The simulation results show that the detection performance is significantly increased, no matter fusion detection system is composed of same sensors working in the same working point or different sensors.

scholarly journals The case of muddled units in temporal discounting

2018 ◽  
Author(s):  
Benjamin Thomas Vincent ◽  
Neil Stewart
Keyword(s):  
Delay Discounting ◽  
Power Law ◽  
Temporal Discounting ◽  
Hyperbolic Discounting ◽  
Cognitive Models ◽  
Units Of Measurement ◽  
The Future ◽  
Simulation Results ◽  
Present Simulation

While parameters are crucial components of cognitive models, relatively little importance has been given to their units. We show that this has lead to some parameters to be contaminated, introducing an artifactual correlation between them. We also show that this has led to the illegal comparison of parameters with different units of measurement – this may invalidate parameter comparisons across partic- ipants, conditions, groups, or studies. We demonstrate that this problem affects two related models: Stevens’ Power Law and Rachlin’s delay discounting model. We show that it may even affect models which superficially avoid the incompatible units problem, such as hyperbolic discounting. We present simulation results to demonstrate the extent of the issues caused by the muddled units problem. We offer solutions in order to avoid the problem in the future or to aid in re-interpreting existing datasets.

scholarly journals A Compact Triple Band Antenna for Military Satellite Communication, Radar and Fifth Generation Applications

2020 ◽  
Vol 9 (3) ◽  
pp. 66-73
Author(s):  
D. El Hadri ◽  
A. Zugari ◽  
A. Zakriti ◽  
M. El Ouahabi ◽  
M. Taouzari
Keyword(s):  
Return Loss ◽  
Satellite Communication ◽  
Fifth Generation ◽  
The Future ◽  
Radar Applications ◽  
Simulation Results ◽  
Triple Band

A compact triple band antenna by using etching slots technique in the radiation element is presented in this paper. The proposed antenna is designed to target three different frequencies: 7.5 GHz (military satellite communication), 9 GHz (radar applications) and 28 GHz (fifth generation applications). The fabricated prototype of the antenna has overall dimensions of 13x12.8x1.6 mm3. Measurements were carried out to validate the simulation results. The impedance bandwidths are 259 MHz (7.435-7.695 MHz), 355 MHz (8.86-9.221 MHz) and 2.67 GHz (26.79-29.433 GHz) with return loss less than -10 dB. Furthermore, the suggested antenna provides a gain of 3.96 dBi, 3.05 dBi and 5.86 dBi at 7.5 GHz, 9 GHz and 28 GHz respectively. Therefore, the results demonstrate that the proposed triple band antenna can be used for military satellite communication, radar applications and is a good candidate for the future 5G applications.

scholarly journals Modeling Of The Dependence Of Co2 Contained In The Exhaust Gases On The Amount Of Hydrogen Gas Supplied To The Engine

2021 ◽  
Vol 93 (6s) ◽  
pp. 217-223
Author(s):  
Hristo Hristov ◽  
◽  
Ivailo Bakalov ◽  
Bogdan Shopov ◽  
Dobromir Yovkov ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Quadratic Function ◽  
Hydrogen Gas ◽  
Mathematical Function ◽  
Real Experiment ◽  
Exhaust Gases ◽  
The Future ◽  
Full Picture

The idea of this publication is to show how mathematical modeling presents dependence of CO2 in the exhaust gases. Using quadratic function obtained results are with good approximation. The future below to hydrogen about marine uses. Mathematical modeling is the best way to show how we can make an experiment with small database and that with mathematical function we receive a full picture of problem that we research with data which can’t receive with real experiment.

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