Polymeric Dyes: Limitations in Their Use as Reference Markers in Postcibal Studies

1986 ◽  
Vol 75 (4) ◽  
pp. 382-383 ◽  
Author(s):  
Michael Fried ◽  
James H. Meyer
Keyword(s):  
Polymeric Dyes ◽  
Reference Markers

The synthesis of polymeric dyes based on waterborne polyurethane: a reaction kinetics study using UV absorption spectroscopy

2020 ◽  
Vol 44 (7) ◽  
pp. 2930-2940 ◽  
Author(s):  
Jun Zhu ◽  
Jie Li ◽  
Chao Sang ◽  
Yunjun Luo
Keyword(s):  
Reaction Kinetics ◽  
Absorption Spectroscopy ◽  
Waterborne Polyurethane ◽  
Uv Absorption ◽  
Kinetics Study ◽  
Uv Absorption Spectroscopy ◽  
First Time ◽  
Polymeric Dyes

The preparation of waterborne polyurethane based polymeric dyes (DWPU) with anthraquinone chromophores was monitored by using UV absorption spectroscopy for the first time.

scholarly journals Poly(BODIPY)s: A New Class of Tunable Polymeric Dyes

2009 ◽  
Vol 42 (17) ◽  
pp. 6529-6536 ◽  
Author(s):  
Fikri E. Alemdaroglu ◽  
Seth C. Alexander ◽  
Dongmei Ji ◽  
Deepak K. Prusty ◽  
Michael Börsch ◽  
...  
Keyword(s):  
New Class ◽  
Polymeric Dyes

Synthesis of polymeric dyes based on UV curable multifunctional waterborne polyurethane for textile coating

2017 ◽  
Vol 41 (2) ◽  
pp. 619-627 ◽  
Author(s):  
Haiyan Mao ◽  
Siyu Qiang ◽  
Yan Xu ◽  
Chaoxia Wang
Keyword(s):  
Waterborne Polyurethane ◽  
Uv Curable ◽  
Polyurethane Coatings ◽  
Polymeric Dyes ◽  
Textile Coating

Novel UVPDs based on multifunctional waterborne polyurethane have been synthesized to overcome the drawbacks of polymeric dyes and polyurethane coatings.

Purification of Polymeric Dyes by Ultrafiltration

1982 ◽  
pp. 191-202
Author(s):  
Anthony R. Cooper ◽  
David P. Matzinger ◽  
Robin G. Booth
Keyword(s):  
Polymeric Dyes

scholarly journals AERIAL PHOTOGRAPHIC WATERLINE SURVEY OF AN ESTUARY

1974 ◽  
Vol 1 (14) ◽  
pp. 148
Author(s):  
J. SIndern ◽  
G.E. Schroder
Keyword(s):  
Tide Gauge ◽  
High Water ◽  
Aerial Photographs ◽  
Northern Germany ◽  
Tide Gauge Records ◽  
Time Intervals ◽  
Accurate Analysis ◽  
Contour Lines ◽  
Short Time ◽  
Reference Markers

The project of a "barrage across an estuary in Northern Germany was accompanied by a programme to monitor the hydrologic and morphologic situation. This became necessary in order to avoid dangers resulting from the sensitivity of the shallow wadden area to human interference. Various methods to record the morphology were tested. The aerial photographic waterline survey proved superior as it supplies a complete and economic record and allows accurate analysis of the topography. The principle consists in taking aerial photographs at short time intervals between low water and high water, each photo showing a different waterline. The scale chosen was 1:18000, corresponding to a flight altitude of 2700 metres. Rectification of the distorted photos requires reference markers to be distributed over the survey area which measures about 140 km^. By using simultaneous tide gauge records, contour lines can be constructed from the photographed waterlines. This morphologic record is supplemented by submarine survey of the estuary. It is expected that details of sediment transport and of tidal prism changes may be revealed. Predicted and actual effects of the barrage will be compared, which might lead to a better understanding of such coasts.

Abstract 246: Evaluation of 2-Dimensional Aortic Arch Motion at the Origin of the Left Subclavian Artery: Importance of Respiratory Motion

2012 ◽  
Vol 32 (suppl_1) ◽  
Author(s):  
Frank R Arko ◽  
Keith D Perkins ◽  
Erin H Murphy ◽  
Lisa M Corwin ◽  
Padraig M Curran
Keyword(s):  
Aortic Arch ◽  
Relative Motion ◽  
Respiratory Motion ◽  
Vertical Movement ◽  
Horizontal Motion ◽  
Stent Grafts ◽  
External Reference ◽  
Bulk Motion ◽  
Significant Difference ◽  
Reference Markers

Introduction: Interactions between components of branched thoracic main stent grafts (MSG) and branch stent grafts (BSG) in the arch have not yet been evaluated. As the chest is subject to both cardiac and respiratory motion, the purpose of this study is to evaluate the cardiac and respiratory effects on interactions between components in the aortic arch. Methods: Two swine had a BSG alone placed in the LSA and two had an MSG/BSG system placed in the LSA. Frames representing the extreme positions of the BSG due to cardiac imposed motion during apnea and through the respiratory cycle were identified in 2-D cines. These images were overlaid as layers, using external reference markers common to each image for accurate overlay positioning. The BSG’s were traced and magnitudes of horizontal and vertical bulk displacements were quantified to evaluate cardiac (CM) and respiratory (RM) [deep inspiration (30 mmHg)]. Relative motion was extracted from bulk motion by comparing displacements at the top and bottom of the BSG. Results: RM resulted in significant difference in bulk horizontal motion compared to CM for the BSG [5.65 + / - 0.07 versus 3.15 + / - 0.63mm, (p=0.002)] and was nearly significant for the MSG /BSG system [4.25 + / - 0.07 versus 2.3 + / - 0.42mm, (p=0.061)]. RM resulted in significant difference in bulk vertical movement compared to CM for the BSG [2.2 + / - 0.28 versus 0.85 + / - 0.35mm, (p=0.026)] and the MSG/BSG system [2.05 + / - 0.07 versus 0.6 + / - 0 (p=0.000001)]. The MSG presence significantly dampened bulk horizontal movement for RM [4.25 + / - 0.07 versus 5.65 + / - 0.07mm, (p=0.0013)] but had no effect on vertical movement [2.05 + / - 0.07 versus 2.2 + / - 0.28mm, (p=0.15)]. RM resulted in significant difference in relative horizontal motion compared to CM for the BSG [4.25 + / - 0.49 versus 2.7 + / - 0.28mm, (p=0.014)] and the MSG/BSG system [1.85 + / - 0.07 versus 0.95 + / - 0.35mm, (p=0.0048)]. RM resulted in significant difference in relative vertical movement compared to CM for the BSG [1.25 + / - 0.07 versus 0.3 + / - 0.28mm, (p=0.002)] and MSG/BSG system [0.7 + / - 0.14 versus 0.25 + / - 0.21mm, (p=0.03)]. The MSG presence significantly dampened relative horizontal and vertical movement for RM [1.85 + / - 0.07 versus 4.75 + / - 0.49mm, (p=0.0004)] and [0.7 + / - 0.14 versus1.25 + / - 0.07mm, (p=0.02)], respectively. Conclusions: RM adds considerably to bulk and relative motion, with horizontal motion dominating. Relative motion accounts for high percentage of bulk motion. The presence of the MSG dampens motion considerably. This is the first study to account for the effects of respiratory motion on branched endografts in the aortic arch. This movement should be taken into account when developing a MSG/BSG for the therapy of aortic arch aneurysms.

Sign in / Sign up

Export Citation Format

Share Document