Slab Optical Waveguide with Octadecylsilane Coated Surface for Absorption Detector of Flow Analysis

1992 ◽  
Vol 65 (6) ◽  
pp. 1581-1584 ◽  
Author(s):  
Kin-ichi Tsunoda ◽  
Hiromitsu Itabashi ◽  
Hideo Akaiwa
Keyword(s):  
Optical Waveguide ◽  
Flow Analysis ◽  
Coated Surface

A Glass Slab Optical Waveguide Detector with an Optical Position Sensor for Flow Analysis

1995 ◽  
Vol 24 (10) ◽  
pp. 933-934 ◽  
Author(s):  
Kin-ichi Tsunoda ◽  
Hiroko Ueno ◽  
Hideo Akaiwa
Keyword(s):  
Optical Waveguide ◽  
Flow Analysis ◽  
Position Sensor ◽  
Optical Position ◽  
Glass Slab

A Slab Optical Waveguide with a Thin Glass Guiding Layer as an Absorption Detector in Flow Analysis

1995 ◽  
Vol 24 (10) ◽  
pp. 935-936 ◽  
Author(s):  
Kin-ichi Tsunoda ◽  
Hiromitsu Itabashi ◽  
Hideo Akaiwa
Keyword(s):  
Optical Waveguide ◽  
Flow Analysis ◽  
Thin Glass

Production flow analysis

1963 ◽  
Vol 42 (12) ◽  
pp. 742 ◽  
Author(s):  
John L. Burbidge
Keyword(s):  
Flow Analysis ◽  
Production Flow

Platelet Accumulation on Fibrin-coated Polyethylene: Role of Platelet Activation and Factor XIII

1995 ◽  
Vol 73 (05) ◽  
pp. 850-856 ◽  
Author(s):  
F D Rubens ◽  
D W Perry ◽  
M W C Hatton ◽  
P D Bishop ◽  
M A Packham ◽  
...  
Keyword(s):  
Factor Xiii ◽  
Cross Linking ◽  
Internal Diameter ◽  
Static System ◽  
Graft Occlusion ◽  
Platelet Binding ◽  
Coated Surface ◽  
Platelet Accumulation ◽  
Polyethylene Tubing

SummaryPlatelet accumulation on small- and medium-calibre vascular grafts plays a significant role in graft occlusion. We examined platelet accumulation on the surface of fibrin-coated polyethylene tubing (internal diameter 0.17 cm) during 10 min of flow (l0ml/min) at high wall shear rate (764 s-1). Washed platelets labelled with 51Cr were resuspended in Tyrode solution containing albumin, apyrase and red blood cells (hematocrit 40%). When the thrombin that was used to form the fibrin-coated surface was inactivated with FPRCH2C1 before perfusion of the tubes with the platelet:red blood cell suspension, the accumulation of platelets was 59,840 ± 27,960 platelets per mm2, whereas accumulation on fibrin with residual active thrombin was 316,750 ± 32,560 platelets per mm2 (n = 4). When the fibrin on the surface was cross-linked by including recombinant factor XIII (rFXIII) in the fibrinogen solution used to prepare the fibrin-coated surface, platelet accumulation, after thrombin neutralization, was reduced by the cross-linking from 46,974 ± 9702 to 36,818 ± 7964 platelets per mm2 (n = 12, p <0.01). Platelet accumulation on tubes coated with D-dimer was ten times less than on tubes coated with D-domain; this finding also supports the observation that cross-linking of fibrin with the formation of γ-γ dimers reduces platelet accumulation on the fibrin-coated surface. Thrombin-activated platelets themselves were shown to cross-link fibrin when they had adhered to it during perfusion, or in a static system in which thrombin was used to form clots from FXIII-free fibrinogen in the presence of platelets. Thus, cross-linking of fibrin by FXIII in plasma or from platelets probably decreases the reactivity of the fibrin-containing thrombi to platelets by altering the lysine residue at or near the platelet-binding site of each of the γ-chains of the fibrinogen which was converted into the fibrin of these thrombi.

Review on the aerodynamics of intermediate compressor duct

2020 ◽  
Vol 14 (4) ◽  
pp. 7446-7468
Author(s):  
Manish Sharma ◽  
Beena D. Baloni
Keyword(s):  
High Pressure ◽  
Pressure Loss ◽  
Flow Analysis ◽  
Outer Wall ◽  
Optimization Techniques ◽  
Optimum Pressure ◽  
Research Areas ◽  
Static Pressure Distribution ◽  
High Pressure Compressor ◽  
Pressure Compressor

In a turbofan engine, the air is brought from the low to the high-pressure compressor through an intermediate compressor duct. Weight and design space limitations impel to its design as an S-shaped. Despite it, the intermediate duct has to guide the flow carefully to the high-pressure compressor without disturbances and flow separations hence, flow analysis within the duct has been attractive to the researchers ever since its inception. Consequently, a number of researchers and experimentalists from the aerospace industry could not keep themselves away from this research. Further demand for increasing by-pass ratio will change the shape and weight of the duct that uplift encourages them to continue research in this field. Innumerable studies related to S-shaped duct have proven that its performance depends on many factors like curvature, upstream compressor’s vortices, swirl, insertion of struts, geometrical aspects, Mach number and many more. The application of flow control devices, wall shape optimization techniques, and integrated concepts lead a better system performance and shorten the duct length.  This review paper is an endeavor to encapsulate all the above aspects and finally, it can be concluded that the intermediate duct is a key component to keep the overall weight and specific fuel consumption low. The shape and curvature of the duct significantly affect the pressure distortion. The wall static pressure distribution along the inner wall significantly higher than that of the outer wall. Duct pressure loss enhances with the aggressive design of duct, incursion of struts, thick inlet boundary layer and higher swirl at the inlet. Thus, one should focus on research areas for better aerodynamic effects of the above parameters which give duct design with optimum pressure loss and non-uniformity within the duct.

Transparency Improvement of SiCO Thin Film for Optical Waveguide with Reactive Sputtering Method

2020 ◽  
Vol 140 (12) ◽  
pp. 369-373
Author(s):  
Hiroyuki Nikkuni ◽  
Chizuru Numata ◽  
Ryoto Yamaji ◽  
Hiroshi Ito ◽  
Yoshio Kawamata
Keyword(s):  
Thin Film ◽  
Optical Waveguide ◽  
Reactive Sputtering

Optical Connection between Optical Via Hole in BGA Package and Optical Waveguide on Board

2009 ◽  
Vol E92-C (2) ◽  
pp. 239-246 ◽  
Author(s):  
Keiko ODA ◽  
Takahiro MATSUBARA ◽  
Kei-ichiro WATANABE ◽  
Kaori TANAKA ◽  
Maraki MAETANI
Keyword(s):  
Optical Waveguide ◽  
Bga Package ◽  
Via Hole ◽  
Optical Connection
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