'Quantum yield' diaporamas de présentation

Modern Solid State NMR Strategies for the Structural Characterization of Disordered Materials

905 views • 59 slides

THE ROLE OF CRYSTALLINE ENVIRONMENT IN THE INTRA MOLECULAR REACTIONS

THE ROLE OF CRYSTALLINE ENVIRONMENT IN THE INTRA MOLECULAR REACTIONS. Elena V. Boldyreva REC-008 MDEST Novosibirsk State University & Institute of Solid State Chemistry RAS boldyrev@nsu.ru. ? Introduction ? Effects of the environment ? Response of the environment ? Conclusions.

651 views • 56 slides

Quantum Dots

1.15k views • 42 slides

Ocean Productivity: A Personal Perspective

553 views • 41 slides

Faculty of Chemistry, Adam Mickiewicz University, Poznan, Poland

"Molecular Photochemistry - how to study mechanisms of photochemical reactions ? ". Bronis l aw Marciniak. Faculty of Chemistry, Adam Mickiewicz University, Poznan, Poland. 2012/2013 - lecture 6. 5. Examples illustrating the investigation of photoreaction mechanisms:

512 views • 34 slides

Some Practical Considerations for the GEO-CAPE Mission

Some Practical Considerations for the GEO-CAPE Mission Sensitivity, Saturation, Sun glint, Cloud cover, etc Chuanmin Hu, Zhongping Lee, Keping Du, Antonio Mannino. NASA GEO-CAPE Science Working Group Meeting 11-13 May 2011, Boulder, Colorado. Some practical considerations

454 views • 31 slides

Quantum Dot Phosphors for Solid-State Lighting Devices

Quantum Dot Phosphors for Solid-State Lighting Devices. A Report of Preliminary Results Charles P. Gibson, University of Wisconsin Oshkosh. Why Should We be Interested in SSL ?. In the US, 22% of electricity is consumed for lighting. This costs about $50 billion per year.

546 views • 28 slides

320 views • 27 slides

Fluorescence, Phosphorescence, & Chemiluminescence

929 views • 21 slides

Photochromism of Diarylethene Single Molecules in Polymer Matrices

Photochromism of Diarylethene Single Molecules in Polymer Matrices. Tuyoshi Fukaminato, Tohru Umemoto, Yasuhide Iwata, Satoshi Yokojima, Mitsuru Yoneyama, Shinichiro Nakamura, and Masahiro Irie J.AM.CHEM.SOC.2007,129,5932-5938. Miyasaka Lab. Toshiyuki Umesato. Contents. Introduction

438 views • 21 slides

GaAs and CsKSb Photocathodes for DC Gun

GaAs and CsKSb Photocathodes for DC Gun. Xianghong Liu Cornell University . Outline. GaAs photocathode DC Gun of ERL photoinjector Preparation procedure Performance Quantum efficiency Temporal response Transverse energy Surface roughening due to heating Lifetime challenges

370 views • 20 slides

Plant Biology Fall 2006

BISC 367 - Plant Physiology Lab Spring 2009. Plant Biology Fall 2006. Notices: The photosynthesis labs are running again this week Reading material (Taiz & Zeiger): Chapter 7: Photosynthesis: the Light Reactions Chapter 8: Photosynthesis: Carbon Reactions

177 views • 17 slides

ASSESSING BIODIVERSITY OF PHYTOPLANKTON COMMUNITIES FROM OPTICAL REMOTE SENSING

221 views • 16 slides

Watershed Mercury Processes

Watershed Mercury Processes. Natural Emissions. Wet Deposition. Dry Deposition. Evasion. Anthropogenic Emissions. Litterfall and Throughfall. Runoff and Erosion. Percolation. Rivers and Streams. Shallow Ground Water. Evasion. Settling Resuspension Diffusion. Weathering.

281 views • 14 slides

Spectrometry and Photochemistry

Spectrometry and Photochemistry . Theodore S. Dibble Chemistry Department SUNY-Environmental Science and Forestry Syracuse, NY. Role of Spectrometry and Photochemistry. Light flux, F( l ), vs. wavelength, altitude, etc. Photochemistry as fate of a molecule Photolysis as radical source

381 views • 13 slides

Chapter 13-15 Molecular Spectroscopy Electronic Transitions

Chapter 13-15 Molecular Spectroscopy Electronic Transitions. Fluorescence excitation and emission spectra (quinine). Spec 20. Quantum Yield ( ?) (or Quantum Efficiency) -measure of how many molecules fluoresce compared to number that get excited.

709 views • 13 slides

23.7 Kinetics of photochemical reactions

23.7 Kinetics of photochemical reactions. Primary photochemical process : products are formed directly from the excited state of a reactant. Secondary photochemical process: intermediates are formed directly from the excited state of a reactant.

556 views • 11 slides

Quantum Yield ( ?) (or Quantum Efficiency)

Quantum Yield ( ?) (or Quantum Efficiency) -measure of how many molecules fluoresce compared to number that get excited. Quantitative Fluorescence. Infrared Spectroscopy. Chapters 16-17 Chapter 7- I.

887 views • 4 slides

Photosynthetic Response of Phytoplankton during the Southern Ocean Iron Experiment (SOFEX)

Layer dominated by big cells (>20 um) with low Fv/Fm = 0.28. Layer dominated by small cells (< 5 um) with high Fv/Fm. Layer dominated by big cells (>20 um) with high Fv/Fm = 0.50. Effect of iron.

132 views • 1 slides

Measurements of Quantum Yields in Forest Canopy in Mixed-Species Natural Forest Liang Wei

Measurements of Quantum Yields in Forest Canopy in Mixed-Species Natural Forest Liang Wei Department of Forest Resources STAT 507 Class Project, Instructor: Zaid Abdo . Fall, 2008.

110 views • 1 slides