Delay measurement of remote presentation in digital language laboratory system

2012 ◽  
Author(s):  
N. Ariadi ◽  
Y. Bandung ◽  
A. Z. R. Langi
Keyword(s):  
Laboratory System ◽  
Language Laboratory ◽  
Delay Measurement ◽  
Digital Language

A Language Laboratory System Without Booths

ELT Journal ◽  
1964 ◽  
Vol XVIII (4) ◽  
pp. 181-183
Author(s):  
I. R. JOHNSON ◽  
J. R. BIRNIE
Keyword(s):  
Laboratory System ◽  
Language Laboratory

scholarly journals SISTEM LABORATORIUM BAHASA DI DALAM WHATSAPP MESSENGER

2020 ◽  
Vol 8 (2) ◽  
pp. 387-398
Author(s):  
Irma Nurul Husnal Chotimah
Keyword(s):  
Foreign Language ◽  
Language Education ◽  
Scientific Paper ◽  
Foreign Language Education ◽  
Laboratory System ◽  
Voice Call ◽  
Language Laboratory ◽  
Laboratory Manual ◽  
Document Delivery ◽  
Voice Message

By the research and development (R&D) method designed by Nicolas Guichon (2007)), this scientific paper lists and describes the features of the free WhatsApp Messenger apps version 2.20.193.9 (released by WhatsApp Inc.) which is then analyzed using the theory of a language laboratory system made by Alfred S. Hayes for later analysis results are used to develop a virtual language laboratory manual. The purpose of this paper is to find out the features of the Whatsapp Messenger version 2.20.193.9 application that can be used for virtual language laboratories and also to develop its manual. Based on the results of the analysis that the author has done, the features that can be used for virtual language laboratories are the chat group, message, voice message, voice call, voice-video call, document delivery (voice document, video, text). The results of this study will be used for the development of the virtual language laboratories manual and are also expected to a topic of discussion among researchers and practitioners in the field of foreign language education and teaching. 

Audio-Lingual teaching method with digital language laboratory

2021 ◽  
Vol 10 (4) ◽  
pp. 88-91
Author(s):  
Adash Rustamova ◽  
Odina Bakhridinova ◽  
Gulmira Juraboyeva
Keyword(s):  
Teaching Method ◽  
Language Laboratory ◽  
Digital Language

Myoelectric Activity Differences in Three Learning Sessions

2002 ◽  
Vol 16 (2) ◽  
pp. 92-96
Author(s):  
Tiina Ritvanen ◽  
Reijo Koskelo ◽  
Osmo H„nninen
Keyword(s):  
High School Students ◽  
Muscle Activity ◽  
Muscle Tension ◽  
Emg Activity ◽  
Traditional Learning ◽  
Myoelectric Activity ◽  
School Students ◽  
Language Laboratory ◽  
Upper Trapezius ◽  
Muscle Groups

Abstract This study follows muscle activity in three different learning sessions (computer, language laboratory, and normal classroom) while students were studying foreign languages. Myoelectric activity was measured in 21 high school students (10 girls, 11 boys, age range 17-20 years) by surface electromyography (sEMG) from the upper trapezius and frontalis muscles during three 45-min sessions. Root mean square (RMS) average from both investigated muscles was calculated. The EMG activity was highest in both muscle groups in the computer-aided session and lowest in the language laboratory. The girls had higher EMG activity in both investigated muscle groups in all three learning situations. The measured blood pressure was highest at the beginning of the sessions, decreased within 10 min, but increased again toward the end of the sessions. Our results indicate that the use of a computer as a teaching-aid evokes more constant muscle activity than the traditional learning situations. Since muscle tension can have adverse health consequences, more research is needed to determine optimal classroom conditions, especially when technical aids are used in teaching.

A Correlation-peak Fining Algorithm for Group Delay Measurement of Radio Frequency System

2014 ◽  
Vol 35 (12) ◽  
pp. 2921-2926
Author(s):  
Chen-xi Lu ◽  
Hong-yu Li ◽  
Feng Nian ◽  
Ke-ming Feng
Keyword(s):  
Radio Frequency ◽  
Group Delay ◽  
Correlation Peak ◽  
Delay Measurement

The effects of surcharged manholes on the travel time and dispersion of solutes in sewer systems

1995 ◽  
Vol 31 (7) ◽  
pp. 51-59 ◽  
Author(s):  
Ian Guymer ◽  
Rob O'Brien
Keyword(s):  
Travel Time ◽  
Moment Method ◽  
In Situ Measurements ◽  
Time Change ◽  
Longitudinal Dispersion ◽  
Laboratory System ◽  
Environmental Load ◽  
Hydraulic Characteristics ◽  
Sewer Systems

Previously, the design of sewer systems has been limited to studies of their hydraulic characteristics, in particular the ability of the system to convey the maximum discharge. Greater environmental awareness has necessitated that new designs, and some existing schemes, are assessed to determine the environmental load which the scheme will deliver to any downstream component. This paper describes a laboratory programme which has been designed to elucidate the effects of manholes on the longitudinal dispersion of solutes. A laboratory system is described, which allows in situ measurements to be taken of the concentration of a fluorescent solute tracer, both up- and down-stream of a surcharged manhole junction. Results are presented from a preliminary series of studies undertaken for a single manhole geometry over a range of discharges, with varying levels of surcharge. Results are presented showing the variation of travel time, change in second moment of the distribution and of a dispersion factor with surcharge, assuming a Taylor approach and determining the dispersion factor using a ‘change in moment’ method. The effect of the stored volume within the manhole is clearly evident. The limitations and the applicability of this approach are discussed.

scholarly journals Capture-to-display delay measurement for visual communication applications

2015 ◽  
Vol 4 ◽  
Author(s):  
Haoming Chen ◽  
Chao Wei ◽  
Mingli Song ◽  
Ming-Ting Sun ◽  
Kevin Lau
Keyword(s):  
Measurement Error ◽  
Exposure Time ◽  
Visual Communication ◽  
Delay Measurement ◽  
Video Chat

We propose a method to measure the capture-to-display delay (CDD) of a visual communication application. The method does not require modifications to the existing system, nor require the encoder and decoder clocks be synchronized. Furthermore, we propose a solution to solve the multiple-overlapped-timestamp problem due to the exposure time of the camera. We analyze the measurement error, and implement the method in software to measure the CDD of a cellphone video chat application over various types of networks. Experiments confirm the effectiveness of our proposed method.

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