National Laboratory of Underwater Observing and Control Technology

Dalian, China

National Laboratory of Underwater Observing and Control Technology

Dalian, China
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Han J.,National Laboratory of Underwater Observing and Control Technology | Hu H.,National Laboratory of Underwater Observing and Control Technology | Meng C.,National Laboratory of Underwater Observing and Control Technology | Zhang X.,National Laboratory of Underwater Observing and Control Technology
Advanced Materials Research | Year: 2012

The acoustic parameters of the sea bottom were an important factor which affected the acoustic wave transmission in shallow water. This work devoted to study the effect of sea bottom parameters on acoustic wave transmission. The sea bottom was divided into two layers. The acoustic wave transmission loss(tl) under different sea bottom parameters was computed using KRAKENC program in the frequency of 500Hz. The simulated results showed that the acoustic parameters of sediment layer had important effect on acoustic wave transmission and the acoustic parameters of basement layer had almost no effect on acoustic wave transmission. © (2012) Trans Tech Publications, Switzerland.


Han J.,National Laboratory of Underwater Observing and Control Technology | Li G.,National Laboratory of Underwater Observing and Control Technology | Liu H.,National Laboratory of Underwater Observing and Control Technology | Hu H.,National Laboratory of Underwater Observing and Control Technology | Zhang X.,National Laboratory of Underwater Observing and Control Technology
Luminescence | Year: 2013

Bioluminescence induced by multifarious stimuli has long been observed and is remains under investigation because of its great complexity. In particular, the exact mechanism underlying bioluminescence is not yet fully understood. This work presents a new experimental method for studying Noctiluca sp. bioluminescence under temperature change stimulation. It is a study of Noctiluca sp. bioluminescence using controlled temperature changes in a tank. A characteristic of this experiment is the large volume of water used (1 m 3 in a tank of 2 × 1 × 1 m). Temperature changes were controlled by two methods. In the first, a flask filled with hot water was introduced into the tank and in the second, a water heater was used in the tank. Temperature changes were recorded using sensors. Noctiluca sp. bioluminescence was recorded using a Canon 5D Mark II and this allowed the characteristics of Noctiluca sp. bioluminescence under temperature change stimulation to be monitored. Copyright © 2012 John Wiley & Sons, Ltd. Copyright © 2012 John Wiley & Sons, Ltd.


PubMed | National Laboratory of Underwater Observing and Control Technology
Type: Journal Article | Journal: Luminescence : the journal of biological and chemical luminescence | Year: 2013

Bioluminescence induced by multifarious stimuli has long been observed and is remains under investigation because of its great complexity. In particular, the exact mechanism underlying bioluminescence is not yet fully understood. This work presents a new experimental method for studying Noctiluca sp. bioluminescence under temperature change stimulation. It is a study of Noctiluca sp. bioluminescence using controlled temperature changes in a tank. A characteristic of this experiment is the large volume of water used (1m(3) in a tank of 211m). Temperature changes were controlled by two methods. In the first, a flask filled with hot water was introduced into the tank and in the second, a water heater was used in the tank. Temperature changes were recorded using sensors. Noctiluca sp. bioluminescence was recorded using a Canon 5D Mark II and this allowed the characteristics of Noctiluca sp. bioluminescence under temperature change stimulation to be monitored.

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