High-Speed Intensified Camera System for Investigation of Plasma Turbulence Induced by the Aurora

2013 ◽  
Author(s):  
Joshua Semeter
Keyword(s):  
High Speed ◽  
Plasma Turbulence ◽  
Camera System ◽  
Intensified Camera

scholarly journals The Optimization of Alternating Current Electrospun PA 6 Solutions Using a Visual Analysis System

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2098
Author(s):  
Tomas Kalous ◽  
Pavel Holec ◽  
Jakub Erben ◽  
Martin Bilek ◽  
Ondrej Batka ◽  
...  
Keyword(s):  
High Voltage ◽  
High Speed ◽  
Visual Analysis ◽  
Polyamide 6 ◽  
Alternating Current ◽  
Sine Wave ◽  
Electrospinning Process ◽  
Camera System ◽  
Polymeric Solutions ◽  
Analysis System

The electrospinning process that produces fine nanofibrous materials have a major disadvantage in the area of productivity. However, alternating current (AC) electrospinning might help to solve the problem via the modification of high voltage signal. The aforementioned productivity aspect can be observed via a camera system that focuses on the jet creation area and that measures the average lifespan. The paper describes the optimization of polyamide 6 (PA 6) solutions and demonstrates the change in the behavior of the process following the addition of a minor dose of oxoacid. This addition served to convert the previously unspinnable (using AC) solution to a high-quality electrospinning solution. The visual analysis of the AC electrospinning of polymeric solutions using a high-speed camera and a programmable power source was chosen as the method for the evaluation of the quality of the process. The solutions were exposed to high voltage applying two types of AC signal, i.e., the sine wave and the step change. All the recordings presented in the paper contained two sets of data: firstly, camera recordings that showed the visual expression of electrospinning and, secondly, signal recordings that provided information on the data position in the signal function.

scholarly journals Dual-camera system for high-speed imaging in particle image velocimetry

2012 ◽  
Vol 15 (3) ◽  
pp. 193-195 ◽  
Author(s):  
K. Hashimoto ◽  
A. Hori ◽  
T. Hara ◽  
S. Onogi ◽  
H. Mouri
Keyword(s):  
Particle Image Velocimetry ◽  
High Speed ◽  
Particle Image ◽  
High Speed Imaging ◽  
Camera System ◽  
Image Velocimetry

Design of high speed camera system with area-CCD KAI-0340DM

2011 ◽  
Vol 19 (11) ◽  
pp. 2791-2799 ◽  
Author(s):  
余达 YU Da ◽  
郭永飞 GUO Yong-fei ◽  
周怀得 ZHOU Huai-de ◽  
武星星 WU Xing-xing ◽  
李广泽 LI Guang-Ze ◽  
...  
Keyword(s):  
High Speed ◽  
High Speed Camera ◽  
Camera System

Design of high speed linear CMOS camera system based on GL0816 sensor

2019 ◽  
Vol 34 (1) ◽  
pp. 24-32
Author(s):  
张军亮 ZHANG Jun-liang ◽  
戚 涛 QI Tao ◽  
李 晖 LI Hui ◽  
乔 健 QIAO Jian
Keyword(s):  
High Speed ◽  
Cmos Camera ◽  
Camera System

Roles of ET-1 in endotoxin-induced microcirculatory disturbance in rat small intestine

1996 ◽  
Vol 271 (3) ◽  
pp. G461-G469 ◽  
Author(s):  
S. Miura ◽  
D. Fukumura ◽  
I. Kurose ◽  
H. Higuchi ◽  
H. Kimura ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Intestinal Mucosa ◽  
High Speed ◽  
Platelet Activating Factor ◽  
Video Camera ◽  
Mucosal Damage ◽  
Dependent Manner ◽  
Camera System ◽  
Eta Receptor Antagonist ◽  
Leukocyte Sticking

The major objective of this study was to investigate whether endothelin-1 (ET-1) plays a significant role in endotoxin-induced microcirculatory disturbances of the intestinal mucosa. Submucosal microvessels of the rat ileum were observed by intravital microscopy with a high-speed video camera system. Preceding the apparent intestinal mucosal damage, red blood cell (RBC) velocity was significantly decreased 30 min after endotoxin treatment in both arterioles and venules. The number of leukocytes sticking to submucosal venules was significantly increased at 30 min. BQ-123, an ETA-receptor antagonist, significantly attenuated the decrease in RBC velocity and also prevented an increase in leukocyte sticking as well as the subsequent mucosal damage induced by endotoxin. The ET-1 concentrations began to be elevated in plasma at 15 min and in the mucosa at 30 min and subsequently further increased in a time-dependent manner. A significant decrease in calcium-dependent nitric oxide synthase activity and significant increases in the concentration of platelet-activating factor (PAF) were demonstrated in the intestinal mucosa after endotoxin treatment. BQ-123 also significantly attenuated these changes. We concluded that the increased ET-1 production in intestinal mucosa induced by endotoxin stimulation could lead to leukocyte sticking and decreased RBC velocity in the intestinal microcirculatory beds via ETA receptors, which are closely related to increased production of PAF and decreased synthesis of constitutive nitric oxide.

scholarly journals HIGH SPEED PHOTOMICROGRAPHY OF LIVING CELLS SUBJECTED TO SUPERSONIC VIBRATIONS

1931 ◽  
Vol 15 (2) ◽  
pp. 147-153 ◽  
Author(s):  
E. Newton Harvey ◽  
Alfred L. Loomis
Keyword(s):  
High Frequency ◽  
High Speed ◽  
Living Cells ◽  
Air Bubbles ◽  
Sound Waves ◽  
Camera System ◽  
Fluid Movement ◽  
High Frequency Sound ◽  
Frequency Sound ◽  
New Type

A new type of camera system is described capable of taking 1200 pictures a second through a microscope objective. Photographs showing the destruction of Arbacia eggs by high frequency sound waves indicate that the disintegration occurs in less than 1/1200 second. Eggs drawn out into spindle or tadpole shapes suggest that rapid movements of the fluid tearing the eggs may be responsible for the disintegration. Although no cavitated air bubbles show in the photographs, other experiments make it likely that the rapid fluid movement is the result of submicroscopic cavitation.

TH-CD-201-10: Highly Efficient Synchronized High-Speed Scintillation Camera System for Measuring Proton Range, SOBP and Dose Distributions in a 2D-Plane

2016 ◽  
Vol 43 (6Part45) ◽  
pp. 3871-3871
Author(s):  
S Goddu ◽  
B Sun ◽  
K Grantham ◽  
T Zhao ◽  
T Zhang ◽  
...  
Keyword(s):  
High Speed ◽  
Scintillation Camera ◽  
Camera System ◽  
Dose Distributions ◽  
Highly Efficient
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