scholarly journals EXTERNAL-FIELD-INDUCED COHERENCE AND LASING WITHOUT INVERSION: THE V-TYPE SYSTEM

1993 ◽  
Vol 42 (2) ◽  
pp. 252
Author(s):  
LUO ZHEN-FEI ◽  
XU ZHI-ZHAN
Keyword(s):  
External Field ◽  
Type System ◽  
Lasing Without Inversion

Enhancement of lasing without inversion induced by spontaneously generated coherence in an open ladder-type system

2006 ◽  
Vol 2 (6) ◽  
pp. 474-476
Author(s):  
Ai-yun Li ◽  
Xi-jun Fan ◽  
Fan-ge Bu ◽  
Hong-xia Qiao ◽  
Zhi-zhan Xu
Keyword(s):  
Type System ◽  
Spontaneously Generated Coherence ◽  
Lasing Without Inversion

Lasing without inversion in an open Λ-type system: self-pulse and continuous wave

2005 ◽  
Vol 37 (1) ◽  
pp. 129-133 ◽  
Author(s):  
X. J. Fan ◽  
N. Cui ◽  
H. Ma ◽  
A. Y. Li ◽  
H. Li
Keyword(s):  
Continuous Wave ◽  
Type System ◽  
Lasing Without Inversion

Effects of the upper level coupling field on lasing without inversion in a V-type system

2007 ◽  
Vol 42 (3) ◽  
pp. 489-493 ◽  
Author(s):  
D. G. Han ◽  
Y. G. Zeng ◽  
H. Guo ◽  
W. Chen ◽  
H. Lu ◽  
...  
Keyword(s):  
Type System ◽  
Coupling Field ◽  
Lasing Without Inversion ◽  
Upper Level

Ultrastructural characteristics of sporidia of Ustilago

1989 ◽  
Vol 47 ◽  
pp. 786-787
Author(s):  
Patricia N. Hackney
Keyword(s):  
Electron Microscope ◽  
Type System ◽  
Tube Formation ◽  
High Voltage Electron Microscopy ◽  
Voltage Electron ◽  
University Of Wisconsin ◽  
Transmission Electron ◽  
Ustilago Hordei ◽  
Silene Alba ◽  
The University

Ustilago hordei and Ustilago violacea are yeast-like basidiomycete pathogens ofHordeum vulgare and Silene alba respectively. The mating type system in both species of Ustilago is bipolar, with alleles, A,a, (U.hordei) and a1, a2 (U.violacea) at a single locus. Haploid sporidia maintain the asexual phase by budding, while the sexual phase is initiated by conjugation tube formation between the mating types during budding and conjugation.For observation of budding, sporidia were prepared by culturing the four types on YEG (yeast extract glucose) broth for 24 hours. After centrifugation at 5000g cells were either left unmated or mated in a1/a2,A/a combinations. The sporidia were then mixed 1:1 with 4% agar and the resulting 1mm cubes fixed in 8% gluteraldehyde and post fixed in osmium tetroxide. After dehydration and embedding cubes were thin sectioned with a LKB ultratome and photographed in a Zeiss 9s transmission electron microscope or in an AE1 electron microscope of MK11 1MEV at the High Voltage Electron Microscopy Center of the University of Wisconsin-Madison.

Thermal comfort conditions in a classroom conditioned by a split-type system

2017 ◽  
Author(s):  
Rogério Vilain ◽  
Marcelo Pereira ◽  
Nathan Mendes ◽  
katia cordeiro ◽  
anastacio da silva junior
Keyword(s):  
Thermal Comfort ◽  
Type System
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