Australian Archaeology: A Guide to Field Techniques

Man ◽  
1969 ◽  
Vol 4 (1) ◽  
pp. 143
Author(s):  
Isabel McBryde ◽  
D. J. Mulvaney
1989 ◽  
Author(s):  
Jerome Barraquand ◽  
Bruno Langlois ◽  
Jean-Claude Latombe

Metrology ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 17-38
Author(s):  
Nandeesh Hiremath ◽  
Vaibhav Kumar ◽  
Nicholas Motahari ◽  
Dhwanil Shukla

In order to progress in the area of aeroacoustics, experimental measurements are necessary. Not only are they required for engineering applications in acoustics and noise engineering, but also they are necessary for developing models of acoustic phenomenon around us. One measurement of particular importance is acoustic impedance. Acoustic Impedance is the measure of opposition of acoustical flow due to the acoustic pressure. It indicates how much sound pressure is generated by the vibration of molecules of a particular acoustic medium at a given frequency and can be a characteristic of the medium.The aim of the present paper is to give a synthetic overview of the literature on impedance measurements and to discuss the advantage and disadvantage of each measurement technique. In this work, we investigate the three main categories of impedance measurement techniques, namely reverberation chamber techniques, impedance tube techniques, and far-field techniques. Theoretical principles for each technique are provided along with a discussion on historical development and recent advancements for each technique.


2010 ◽  
Vol 29 (23-24) ◽  
pp. 3346-3347
Author(s):  
Bethan Davies
Keyword(s):  
Sea Ice ◽  

Author(s):  
Puneet Sharma Sonu

"Shastra" commonly means a specific field of knowledge. In early Vedic literature, the word referred to any precept, rule, teaching, ritual instruction or direction.[1] In late and post Vedic literature of Hinduism, Shastra referred to any study, book or instrument of teaching, any manual or compilation of any subject in any field of knowledge, including religion. Tantra guna is Shastra Lakshana. The qualities of an ideal Shastra or study which would be received universally as a well documented standard reference are explained in Charak Samhita vimansthan as mentioned in Ayurveda.  The scientific paper has been developed over the last three centuries as a tool for communicating the results of scientific research. Scientific writing must be of a high standard, as it relates to the process of learning as well as new learners. In ancient times, a specific writing methodology was adopted by scientists to prepare standard and highly scientific historical documents in the field. Techniques such as Tantrayukti (Treat writing/decoding techniques), Tachchhilya (inclinations), Kalpana (compositions), etc. have been described in the classics to establish the quality requirements of research literature. Thanks to well-established writing methods, scientific mythology such as Samhita (Ayurvedic texts), Samgraha-grantha (compendia), Nighantu (lexicons), etc., has also been compiled universally and has produced some great quality literature. The Tantraguna refers to the key points of the writing, such as language, order, volume, form, etc. After reviewing and analyzing these Tantragunas, it can be concluded that the ancient writing method can be equated with certain alternatives to the current introduction, methods, results and discussion structure of scientific writing. This study can help to strengthen and reinforce the current standards of scientific writing by changing new aspects of the ancient writing system.


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