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by Anthropological Society of Nippon
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Our understanding of the evolution of human speech has been expanded by an increased knowledge of vocal anatomy and physiology in non-human primates. Comparative approaches provide evidence supporting the primate origins of many speech faculties. The descent of the larynx enables the two-tube configuration of the supralaryngeal vocal tract (SVT) in humans; however, this configuration is also found in chimpanzees and macaques. The acoustic properties of voices produced in helium gas support the...
Anthropological Science
Anthropological Science
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19
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by Anthropological Society of Nippon
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Electroglottography (EGG) is a low-cost, non-invasive method for documenting laryngeal sound production during vocalization. The EGG signal represents relative vocal fold contact area and thus delivers physiological evidence of vocal fold vibration. While the method has received much attention in human voice research over the last five decades, it has seen very little application in other mammals. Here, we give a concise overview of mammalian vocal production principles. We explain how...
by Illuminating Engineering Society of Japan
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eye 20

Landscape Design Standards for Lighting Established by Landscape Plans Prescribed in the Landscape Act
Journal of light & visual environment
Journal of light & visual environment
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23
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by Illuminating Engineering Society of Japan
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We propose a light-emitting diode (LED) flat lighting panel that is capable of seamless connection by optimizing the shape of the optical elements, as well as the concentration of the scattering particles used in the diffuser material. The LED flat lighting panels that we develop can be connected to other panels while maintaining a uniformity of 90% throughout the entire surface. The results of subjective experiments reveal that the seams between the connected LED flat panels are virtually...
by Illuminating Engineering Society of Japan
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eye 20

“Journal of Science and Technology in Lighting” is an English-language publication of the Illuminating Engineering Institute of Japan that is issued with the aim of introducing advances international studies and the technology of lighting engineering to a wide audience, and in addition to presenting articles on lighting fundamentals and applications, also includes papers, letters, and research notes the like in a wide range of fields, such as the generation and application of light, vision...