scholarly journals On the characteristic scales involved in a fragmentation process

1998 ◽  
Vol 08 (PR8) ◽  
pp. Pr8-119-Pr8-126 ◽  
Author(s):  
C. Denoual ◽  
F. Hild
Keyword(s):  
Fragmentation Process ◽  
Characteristic Scales

Free Water Influence on the Dynamic Tensile Behaviour of Concrete

2011 ◽  
Vol 82 ◽  
pp. 45-50 ◽  
Author(s):  
Benjamin Erzar ◽  
Pascal Forquin
Keyword(s):  
Dynamic Behaviour ◽  
Free Water ◽  
Dynamic Strength ◽  
Fragmentation Process ◽  
Tensile Behaviour ◽  
Water Influence ◽  
Micro Cracks ◽  
The World ◽  
The Difference ◽  
Impact Experiments

Concrete is a material used all over the world for civil engineering but the mechanisms governing its dynamic behaviour are still not well understood. In this work, spalling tests and edge-on impact experiments have been used to determine the influence of the free-water contained in pores and micro-cracks on the dynamic strength and on the fragmentation process. Moreover, spalling tests have been also used to identify the main mechanisms leading to the difference of behaviour observed between wet and dry concrete.

scholarly journals Characteristic Scales of Wear Track Profiles Generated by Pin-on-Disk Wear Tests

2008 ◽  
Vol 3 (3) ◽  
pp. 205-210 ◽  
Author(s):  
Naofumi Hiraoka ◽  
Hiroyuki Matsumoto
Keyword(s):  
Wear Track ◽  
Pin On Disk ◽  
Characteristic Scales ◽  
Wear Tests

scholarly journals The effect of fragmentation on spider richness (Arachnida: Araneae) in montane semideciduous seasonal forest

2021 ◽  
Vol 12 (4) ◽  
Author(s):  
Flávio Eduardo Vilas Boas Júnior ◽  
Amanda Da Silva Ferreira ◽  
Marcos Magalhães De Souza
Keyword(s):  
Species Richness ◽  
Atlantic Forest ◽  
Minas Gerais ◽  
Fragmentation Process ◽  
Natural Environments ◽  
Forest Fragments ◽  
Spider Species ◽  
Semideciduous Seasonal Forest ◽  
Agricultural Areas ◽  
Environmental Functions

The fragmentation process that has altered natural environments has been widely discussed, as it causes changes in communities and compromises different environmental functions. In this sense, this study was based on the evaluation of fragmentation on araneofauna of semideciduous seasonal forest fragments, phytophysiognomy belonging to the Atlantic Forest. The study was conducted in three fragments in the municipality of Inconfidentes, southern Minas Gerais, from April 2014 to March 2015. The results showed that there is a similarity in the composition of spider species among the sampled fragments and that the size of the fragment is positively correlated with species richness. Our data show that smaller fragments must be preserved and that agricultural areas maintain the integrity of adjacent forest areas to benefit from the predation dynamics that spiders exert on pests that affect plantations.

scholarly journals Fragmentation process of benzenedicarboxylic acid dimethyl esters.

1986 ◽  
Vol 34 (2) ◽  
pp. 99-105 ◽  
Author(s):  
Susumu Tajima ◽  
Seiji Tobita ◽  
Akio Negishi ◽  
Toshikazu Tsuchiya
Keyword(s):  
Fragmentation Process ◽  
Benzenedicarboxylic Acid

Radiochemical study on the mechanism of target fragmentation of Cu, Nb, Pr and Au targets induced by 12C and 40Ar projectiles

2001 ◽  
Vol 89 (11-12) ◽  
Author(s):  
Akihiko Yokoyama ◽  
S. Morimoto ◽  
H. Araki ◽  
J. Sanada ◽  
H. Baba ◽  
...  
Keyword(s):  
Cross Sections ◽  
Gamma Ray ◽  
Thick Target ◽  
Fragmentation Process ◽  
Gamma Ray Spectrometry ◽  
Target Fragmentation ◽  
Radiochemical Study

A thick-target thick-catcher experiment was performed to measure the formation cross sections and recoil momenta of products from target fragmentation of Cu, Nb, Pr, and Au by using gamma-ray spectrometry. Bombardments of C ions (180, 290, and 400 MeV/u) and Ar ions (290 and 650 MeV/u) were performed at the HIMAC facility in Japan. The results were discussed in comparison with systematics of fragmentation and used to deduce the prefragments in fragmentation process of the measured systems.

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