Experimental studies of seasonal variation for temperature fields on the Sea of Japan shelf by acoustical methods

2010 ◽  
Vol 56 (2) ◽  
pp. 194-195 ◽  
Author(s):  
V. A. Akulichev ◽  
Yu. N. Morgunov ◽  
D. S. Strobykin
Keyword(s):  
Seasonal Variation ◽  
Sea Of Japan ◽  
Experimental Studies ◽  
Temperature Fields ◽  
The Sea Of Japan

Seasonal Variation of Radon Daughters Concentrations in the Atmosphere and in Precipitation at the Japanese Coast of the Sea of Japan

1988 ◽  
Vol 24 (1-4) ◽  
pp. 93-95 ◽  
Author(s):  
T. Nishikawa ◽  
S. Okabe ◽  
M. Aoki
Keyword(s):  
Seasonal Variation ◽  
Sea Of Japan ◽  
Coastal Region ◽  
The Other ◽  
The Sea Of Japan ◽  
Heavy Snowfall ◽  
Air Masses ◽  
Japanese Coast ◽  
Radon Daughters ◽  
Atmospheric Radon

Abstract The atmospheric radon daughters concentration at Fukui in the Japanese coastal region of the Sea of Japan shows a seasonal variation whose high values appear in summer and low values in winter. On the other hand, the radon daughters concentration in precipitation at Fukui and that in the maritime atmosphere over the Sea of Japan are high in winter and low in summer. It is concluded from these phenomena that the greater part of the continental radon and its daughters are transported by seasonal winds from Siberia and China to Japan across the Sea of Japan in winter. However, when the air masses approach the shore, the cumulonimbus grows and the heavy snowfall scavenges out the radon daughters from the air masses in large quantities at the Japanese coastal region of the Sea of Japan.

scholarly journals EXPERIMENTAL STUDIES OF THE DISTRIBUTION OF VARIOUS SPECIES OF SEISMOACOUSTIC WAVES IN THE COASTAL ZONE

2020 ◽  
Author(s):  
А.Н. Самченко ◽  
А.А. Пивоваров ◽  
А.Н. Швырев ◽  
И.О. Ярощук
Keyword(s):  
Surface Waves ◽  
Coastal Zone ◽  
Sea Of Japan ◽  
Peter The Great Bay ◽  
Experimental Studies ◽  
Low Frequency ◽  
Acoustic Signals ◽  
The Sea Of Japan ◽  
Preliminary Results ◽  
Peter The Great

В статье приводятся результаты экспериментальных исследований распространения низкочастотных акустических сигналов (33 Гц) на побережье залива Петра Великого Японского моря. Источник акустических сигналов опускался с борта маломерного судна в воду, а приемные системы были у береговой черты в воде и на суше. За счет использования трехкомпонентных виброметров стало возможно разделить принятые сигналы на различные типы волн (продольные, поперечные и поверхностные). Получены предварительные результаты расчета скоростных характеристик приходов различного типа волн на виброметры. The article presents the results of experimental studies on the propagation of low-frequency acoustic signals (33 Hz) on the coast of Peter the Great Bay of the Sea of Japan. The source of acoustic signals descended from the board of a small boat into the water, and the receiving systems were at the coastline in water and on land. Through the use of three component vibrometers, it has become possible to divide the received signals into various types of waves (longitudinal, transverse and surface waves). The preliminary results of calculating the speed characteristics of the arrival of various types of waves on vibrometers are obtained.

Seasonal variation of phlorotannin in sargassacean species from the coast of the Sea of Japan

2010 ◽  
Vol 58 (1) ◽  
pp. 53-61 ◽  
Author(s):  
Mitsunobu Kamiya ◽  
Takeshi Nishio ◽  
Asami Yokoyama ◽  
Kousuke Yatsuya ◽  
Tomokazu Nishigaki ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Sea Of Japan ◽  
The Sea Of Japan

scholarly journals Red yeast Rhodotorula benthica – substitute feed base for echinoderms in factory cultivation

2021 ◽  
Vol 265 ◽  
pp. 05010
Author(s):  
Inga V. Matrosova ◽  
Anastasia A. Politaeva
Keyword(s):  
Sea Urchin ◽  
Sea Of Japan ◽  
Sea Cucumber ◽  
Experimental Studies ◽  
Natural Populations ◽  
Feed Additive ◽  
The Sea Of Japan ◽  
Eastern State ◽  
Larvae And Juveniles ◽  
The Right

Now decrease press of the fishery on natural populations of hydrobionts and restoration of their number due to artificial reproduction is actual. At artificial cultivation important properly to choose the right feed. To develop the feeding technology, work was carried out with larvae and juveniles of sea cucumber and gray sea urchin in the conditions of the mini-plant of the Scientific and Production Department of Mariculture of the Far Eastern State Technical Fisheries University located in Severnaya Bay (Slavyansky Gulf, the Sea of Japan) and Troitsa Bay (Vladimir Gulf, the Sea of Japan). Experimental studies have shown the possibility of using the sea yeast Rhodotorula benthica as either the main feed or as a feed additive. Practical recommendations have been developed for the use of Rhodotorula benthica yeast as a substitute feed base for growing larvae and juveniles of Japanese sea cucumber and gray sea urchin. The results of the work will serve as a basis for the development of biotechnology for feeding at echinoderm breeding farms and will be useful to the organizations, whose duties include rational and competent progress of marine economic territories.

Seasonal variation of water chemistry and sulfur budget in an acid-sensitive river along the Sea of Japan

Limnology ◽  
2012 ◽  
Vol 14 (2) ◽  
pp. 195-209 ◽  
Author(s):  
Ryo Kobayashi ◽  
Yani Sumarriani ◽  
Naoyuki Yamashita ◽  
Tsutomu Ohta ◽  
Hiroki Matsubara ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Water Chemistry ◽  
Sea Of Japan ◽  
The Sea Of Japan
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