Study on the correlation between the old city and the newly developed city regarding audible sound types and sound levels

2004 ◽  
Vol 115 (5) ◽  
pp. 2623-2623
Author(s):  
Takeshi Tokashiki ◽  
Yasuhiro Yamashita ◽  
Naoki Takagi
Keyword(s):  
Sound Levels ◽  
Audible Sound ◽  
Old City

scholarly journals Seeking Inspiration: Examining the Validity and Reliability of a New Smartphone Respiratory Therapy Exergame App

Sensors ◽  
2021 ◽  
Vol 21 (19) ◽  
pp. 6472
Author(s):  
Clarence Baxter ◽  
Julie-Anne Carroll ◽  
Brendan Keogh ◽  
Corneel Vandelanotte
Keyword(s):  
Smartphone Application ◽  
Respiratory Therapy ◽  
Future Application ◽  
Validity And Reliability ◽  
Sound Levels ◽  
Therapy Technique ◽  
Sound Detection ◽  
Audible Sound ◽  
Development Evaluation ◽  
Incentive Spirometry

Background: Clinically valid and reliable simulated inspiratory sounds were required for the development and evaluation of a new therapeutic respiratory exergame application (i.e., QUT Inspire). This smartphone application virtualises incentive spirometry, a longstanding respiratory therapy technique. Objectives: Inspiratory flows were simulated using a 3 litre calibration syringe and validated using clinical reference devices. Syringe flow nozzles of decreasing diameter were applied to model the influence of mouth shape on audible sound levels generated. Methods: A library of calibrated audio inspiratory sounds was created to determine the reliability and range of inspiratory sound detection at increasing distances separating the sound source and smartphones running the app. Results: Simulated inspiratory sounds were reliably detected by the new application at higher air inflows (high, medium), using smaller mouth diameters (<25 mm) and where smartphones were held proximal (< = 5 cm) to the mouth (or at distances up to 50 cm for higher airflows). Performance was comparable for popular smartphone types and using different phone orientations (i.e., held horizontally, at 45° or 90°). Conclusions: These observations inform future application refinements, including prompts to reduce mouth diameter, increase inspiratory flow and maintain proximity to the phone to optimise sound detection. This library of calibrated inspiratory sounds offers reproducible non-human reference data suitable for development, evaluation and regression testing of a therapeutic respiratory exergame application for smartphones.

The Old City of Hebron: Can It be Saved?

1994 ◽  
Vol 23 (4) ◽  
pp. 69-82 ◽  
Author(s):  
Patricia Sellick
Keyword(s):  
Old City

Verification of the Calculation Assumptions Applied to Solutions of the Acoustic Measurements Uncertainty

2015 ◽  
Vol 39 (2) ◽  
pp. 199-202
Author(s):  
Wojciech Batko ◽  
Renata Bal
Keyword(s):  
Normal Distribution ◽  
Confidence Intervals ◽  
Uncertainty Of Measurement ◽  
Acoustic Measurements ◽  
Uncertainty In Measurement ◽  
Sound Levels ◽  
Measurement Results ◽  
Analysis Of Results ◽  
Essential Problem ◽  
Expression Of Uncertainty

Abstract The assessment of the uncertainty of measurement results, an essential problem in environmental acoustic investigations, is undertaken in the paper. An attention is drawn to the - usually omitted - problem of the verification of assumptions related to using the classic methods of the confidence intervals estimation, for the controlled measuring quantity. Especially the paper directs attention to the need of the verification of the assumption of the normal distribution of the measuring quantity set, being the base for the existing and binding procedures of the acoustic measurements assessment uncertainty. The essence of the undertaken problem concerns the binding legal and standard acts related to acoustic measurements and recommended in: 'Guide to the expression of uncertainty in measurement' (GUM) (OIML 1993), developed under the aegis of the International Bureau of Measures (BIPM). The model legitimacy of the hypothesis of the normal distribution of the measuring quantity set in acoustic measurements is discussed and supplemented by testing its likelihood on the environment acoustic results. The Jarque-Bery test based on skewness and flattening (curtosis) distribution measures was used for the analysis of results verifying the assumption. This test allows for the simultaneous analysis of the deviation from the normal distribution caused both by its skewness and flattening. The performed experiments concerned analyses of the distribution of sound levels: LD, LE, LN, LDWN, being the basic noise indicators in assessments of the environment acoustic hazards.

Case study: Prediction and field tests of railway noise and effects of a low-height noise barrier

2020 ◽  
Vol 68 (4) ◽  
pp. 303-314
Author(s):  
Yuna Park ◽  
Hyo-In Koh ◽  
University of Science and Technology, Transpo ◽  
University of Science and Technology, Transpo ◽  
University of Science and Technology, Transpo ◽  
...  
Keyword(s):  
High Speed ◽  
Field Tests ◽  
Residential Areas ◽  
Railway Systems ◽  
Railway Noise ◽  
Sound Levels ◽  
Noise Barrier ◽  
The Difference ◽  
Reduction Effect ◽  
The Impact

Railway noise is calculated to predict the impact of new or reconstructed railway tracks on nearby residential areas. The results are used to prepare adequate counter- measures, and the calculation results are directly related to the cost of the action plans. The calculated values were used to produce noise maps for each area of inter- est. The Schall 03 2012 is one of the most frequently used methods for the production of noise maps. The latest version was released in 2012 and uses various input para- meters associated with the latest rail vehicles and track systems in Germany. This version has not been sufficiently used in South Korea, and there is a lack of standard guidelines and a precise manual for Korean railway systems. Thus, it is not clear what input parameters will match specific local cases. This study investigates the modeling procedure for Korean railway systems and the differences between calcu- lated railway sound levels and measured values obtained using the Schall 03 2012 model. Depending on the location of sound receivers, the difference between the cal- culated and measured values was within approximately 4 dB for various train types. In the case of high-speed trains, the value was approximately 7 dB. A noise-reducing measure was also modeled. The noise reduction effect of a low-height noise barrier system was predicted and evaluated for operating railway sites within the frame- work of a national research project in Korea. The comparison of calculated and measured values showed differences within 2.5 dB.

SOURCE-HISTORIOGRAPHICAL STUDY OF THE EXISTENCE OF THE SECOND KOSTROMA KREMLIN (Article 2)

2020 ◽  
pp. 10-35
Author(s):  
Sergey A. Kabatov ◽  
Yelena A. Kabatova
Keyword(s):  
Urban Settlement ◽  
Archaeological Data ◽  
Old City ◽  
Storage Location ◽  
Shed Light

The question of dating an urban settlement, if its date has no clear or specific written confirmation, is always very problematic and complicated. Its solution requires the use of the widest possible range of data. This research is presented in a block of articles that attempt to cover the source-historiographical study of the existence of the second Kostroma Kremlin, including the latest archaeological data from 2016-2017 on the territory of the Old city of the second Kostroma Kremlin. The study raises questions about the conditions, specifics and dating of the foundation of the first and second Kostroma Kremlins, their nature of development, the conditions for obtaining the icon Our Lady of Saint Theodore in Kostroma and its storage location in both Kremlins. The question of the place, time and conditions of the construction of the Assumption Cathedral is considered separately, since only research on the conditions and dating of its construction can shed light on the date of the foundation of the Old city of the second Kostroma Kremlin. Article 2 continues this block of research, which refers us to the time and conditions of building the Dormition Cathedral.

URBAN HERITAGE AREAS THROUGH THE SCOPE OF GREEN ARCHITECTURE CONCEPTS (OLD CITY OF SANA'A AS AN EXAMPLE)

2007 ◽  
Vol 35 (4) ◽  
pp. 1041-1055
Author(s):  
Wael A. Mokbel, ◽  
Ezzat A. Morghany ◽  
Shawkat A. Alkady
Keyword(s):  
Green Architecture ◽  
Urban Heritage ◽  
Old City
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