A technique to study the development in wood of soft rot fungi and its application to Ceratocystis ulmi

1971 ◽  
Vol 49 (1) ◽  
pp. 155-159 ◽  
Author(s):  
F. Casagrande ◽  
G.B. Ouellette
Keyword(s):  
Cell Walls ◽  
Close Contact ◽  
Soft Rot ◽  
Senior Author ◽  
New Technique ◽  
Starch Grains ◽  
A New Technique ◽  
New System

The development of fungi causing soft rots and of ensuing cavities in cell walls was studied with a new technique, consisting in inoculation of sterilized wood sections placed on agar slants. The senior author proposes a new system of classification of the soft rot fungi. Applied to investigations on Ceratocystis ulmi (Buism.) C. Moreau, this technique permits further characterization of the morphology of this fungus, including the formation of microhyphae and microspore-like particles, often less than 0.5 μ in diameter, and recognition of the various configurations brought about by its growth in wood tissues. For example, microhyphae grow in a reticulate manner in close contact with starch grains, and these seem to break down.

A New Technique for Characterization of Low Impedance Materials at Acoustic Frequencies

2018 ◽  
Vol 58 (8) ◽  
pp. 1311-1324 ◽  
Author(s):  
W. Nantasetphong ◽  
Z. Jia ◽  
M.A. Hasan ◽  
A.V. Amirkhizi ◽  
S. Nemat-Nasser
Keyword(s):  
New Technique ◽  
A New Technique ◽  
Low Impedance Materials

Fluorescence lifetime spectroscopy: a new technique for the characterization of polyplexes

2014 ◽  
Author(s):  
Cosimo D’Andrea ◽  
Daniele Pezzoli ◽  
Chiara Malloggi ◽  
Alessia Candeo ◽  
Alessandro Volonterio ◽  
...  
Keyword(s):  
Fluorescence Lifetime ◽  
New Technique ◽  
A New Technique

A new technique for characterization of pore structures in materials—application to the study of hydroxyapatite thin films

1998 ◽  
Vol 37 (4-5) ◽  
pp. 211-214
Author(s):  
C.M. Lopatin ◽  
T.L. Alford ◽  
V.B. Pizziconi ◽  
T. Laursen
Keyword(s):  
Thin Films ◽  
New Technique ◽  
Pore Structures ◽  
A New Technique

Detection and enumeration of Erwinia carotovora subsp. atroseptica using spiral plating and immunofluorescence colony staining

1997 ◽  
Vol 43 (9) ◽  
pp. 847-853 ◽  
Author(s):  
B. M. Schober ◽  
J. W. L. van Vuurde
Keyword(s):  
Crystal Violet ◽  
Pure Culture ◽  
Small Variation ◽  
Erwinia Carotovora ◽  
Soft Rot ◽  
New Technique ◽  
A New Technique ◽  
Positive Effect

Immunofluorescence colony staining (IFC) and a new technique using spiral plating combined with IFC were evaluated for the soft-rot pathogen Erwinia carotovora subsp. atroseptica in witloof chicory. Target bacteria could be detected in platings at various dilutions of plant washings. Brilliance of the stained colonies of E. carotovora subsp. atroseptica was high. Spiral plating, used for both the plating of the bacteria and for the delivery of the conjugated antiserum, had a positive effect on the reduction of the background compared with the staining of the bacteria. The combination of spiral plating and IFC proved to be a functional tool for the quantification of target and nontarget bacteria and the isolation of target bacteria as pure culture from IFC-positive colonies. The method uses less conjugated antiserum than traditional IFC and produces results with very small variation within replications. The recovery of the bacteria in both pure culture and plant washing is significantly higher than the recovery using crystal violet pectate medium.Key words: soft rot, witloof chicory, detection, Erwinia carotovora subsp. atroseptica.

Echocardiographically guided left atrial ablation: Characterization of a new technique

Heart Rhythm ◽  
2006 ◽  
Vol 3 (8) ◽  
pp. 930-938 ◽  
Author(s):  
David Schwartzman ◽  
John Nosbisch ◽  
Debra Housel
Keyword(s):  
Left Atrial ◽  
New Technique ◽  
Atrial Ablation ◽  
A New Technique

A NEW TECHNIQUE FOR CLASSIFICATION OF DIGITAL SIGNAL TYPES

2008 ◽  
Vol 17 (05) ◽  
pp. 957-971
Author(s):  
ATAOLLAH EBRAHIMZADEH ◽  
ABOLFAZL RANJBAR ◽  
MEHRDAD ARDEBLILPOUR
Keyword(s):  
High Performance ◽  
Cross Validation ◽  
Digital Signal ◽  
Higher Order ◽  
New Technique ◽  
Communication Signals ◽  
Communication Signal ◽  
A New Technique ◽  
Fold Cross Validation

Classification of the communication signals has seen under increasing demands. In this paper, we present a new technique that identifies a variety of digital communication signal types. This technique utilizes a radial basis function neural network (RBFN) as the classifier. Swarm intelligence, as an evolutionary algorithm, is used to construct RBFN. A combination of the higher-order moments and the higher-order cumulants up to eight are selected as the features of the considered digital signal types. In conjunction with RBFN, we have used k-fold cross-validation to improve the generalization potentiality. Simulation results show that the proposed technique has high performance for classification of different communication signals even at very low signal-to-noise ratios.

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