scholarly journals COMPUTER SIMULATION OF PROPERTIES OF PHEROMON MOLECULES OF SIBERIAN SILK MOTH

2021 ◽  
pp. 60-70
Author(s):  
P. V. Artyushenko ◽  
P. E. Tsikalova ◽  
F. N. Tomilin
Keyword(s):  
Computer Simulation ◽  
Silk Moth ◽  
Siberian Silk Moth

Migration of the Northern Boundary of the Siberian Silk Moth

2018 ◽  
Vol 11 (1) ◽  
pp. 26-34 ◽  
Author(s):  
V. I. Kharuk ◽  
S. T. Im ◽  
M. N. Yagunov
Keyword(s):  
Northern Boundary ◽  
Silk Moth ◽  
Siberian Silk Moth

scholarly journals Orographic Factors as a Predictor of the Spread of the Siberian Silk Moth Outbreak in the Mountainous Southern Taiga Forests of Siberia

Land ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 115
Author(s):  
Svetlana M. Sultson ◽  
Andrey A. Goroshko ◽  
Sergey V. Verkhovets ◽  
Pavel V. Mikhaylov ◽  
Valery A. Ivanov ◽  
...  
Keyword(s):  
Large Scale ◽  
Thermal Emission ◽  
Coniferous Forest ◽  
Southern Taiga ◽  
Slope Aspect ◽  
Landsat 8 ◽  
Silk Moth ◽  
Pest Outbreaks ◽  
Taiga Forests ◽  
Siberian Silk Moth

This research is dedicated to solving an urgent problem associated with the large-scale destruction of taiga forests by Siberian silk moth (Dendrolimus sibiricus) outbreaks. The dynamics of the damage to dark coniferous forest stands induced by the Siberian silk moth outbreaks in mid-altitude mountains were studied. A hypothesis was formulated based on the fundamental influence of the orography on the phytophage’s dispersal within the landscape, along with the climate, which acts as a secondary predictor—a catalyst for outbreaks. The study was carried out using Landsat−8 satellite imagery time-series (from 2018 to 2020). The data were verified using a field forest pathological survey of the territory. An assessment of the defoliated forest area and damage association with the landscape was carried out using an Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) digital elevation model. The assessment was aimed to detail the forecast parameters for an outbreak development in mid-altitude mountains using the orographic features—altitude, terrain slope, and slope aspect. Early warnings of phytophagous insect outbreaks in mountain southern taiga should be focused on the permanent monitoring of dark coniferous stands of the mossy group of forest types, covering altitude levels from 400 to 600 m, located on gentle terrains and slopes of up to 15 degrees. The greatest vulnerability to phytophage impacts was characterized as areas located at altitudes from 400 to 600 m. The upper limit of D. sibiricus distribution was 900 m above sea level. The results obtained provide comprehensive information on the Siberian silk moth potential reserves within the study area with the possibility of extrapolation to similar territories. The data will make it possible to model pest outbreaks based on orography and improve the forest pathological monitoring methods at the regional level.

Spatial and temporal dynamics of Siberian silk moth large-scale outbreak in dark-needle coniferous tree stands in Altai

2016 ◽  
Vol 9 (6) ◽  
pp. 711-720 ◽  
Author(s):  
V. I. Kharuk ◽  
D. A. Demidko ◽  
E. V. Fedotova ◽  
M. L. Dvinskaya ◽  
U. A. Budnik
Keyword(s):  
Large Scale ◽  
Temporal Dynamics ◽  
Coniferous Tree ◽  
Silk Moth ◽  
Spatial And Temporal Dynamics ◽  
Siberian Silk Moth

scholarly journals Problems in the timely improvement of sanitary state of the forests affected by the Siberian silk moth outbreaks

2021 ◽  
Vol 839 (5) ◽  
pp. 052007
Author(s):  
S M Sultson ◽  
P V Mikhaylov ◽  
S V Verkhovets ◽  
A A Goroshko ◽  
N P Melnichenko
Keyword(s):  
Silk Moth ◽  
Siberian Silk Moth ◽  
Sanitary State

Characterization of Modulated Structure Through Structure Images and their Computer Simulation

1990 ◽  
Vol 48 (1) ◽  
pp. 70-71
Author(s):  
Kiyomichi Nakai ◽  
Yusuke Isobe ◽  
Chiken Kinoshita ◽  
Kazutoshi Shinohara
Keyword(s):  
Computer Simulation ◽  
High Resolution ◽  
Spherical Aberration ◽  
High Resolution Electron Microscopy ◽  
Basic Mechanism ◽  
Objective Lens ◽  
Specimen Thickness ◽  
Transmitted Beam ◽  
Modulated Structure ◽  
Resolution Electron

Induced spinodal decomposition under electron irradiation in a Ni-Au alloy has been investigated with respect to its basic mechanism and confirmed to be caused by the relaxation of coherent strain associated with modulated structure. Modulation of white-dots on structure images of modulated structure due to high-resolution electron microscopy is reduced with irradiation. In this paper the atom arrangement of the modulated structure is confirmed with computer simulation on the structure images, and the relaxation of the coherent strain is concluded to be due to the reduction of phase-modulation.Structure images of three-dimensional modulated structure along <100> were taken with the JEM-4000EX high-resolution electron microscope at the HVEM Laboratory, Kyushu University. The transmitted beam and four 200 reflections with their satellites from the modulated structure in an fee Ni-30.0at%Au alloy under illumination of 400keV electrons were used for the structure images under a condition of the spherical aberration constant of the objective lens, Cs = 1mm, the divergence of the beam, α = 3 × 10-4 rad, underfocus, Δf ≃ -50nm and specimen thickness, t ≃ 15nm. The CIHRTEM code was used for the simulation of the structure image.

Sign in / Sign up

Export Citation Format

Share Document