scholarly journals A Precise and Autonomous System for the Detection of Insect Emergence Patterns

10.3791/58362 ◽  
2019 ◽  
Author(s):  
Meghan M. Bennett ◽  
Joseph P. Rinehart ◽  
George D. Yocum ◽  
Ian Yocum
Keyword(s):  
Autonomous System ◽  
Insect Emergence ◽  
Emergence Patterns

scholarly journals Effects of Stream Temperature and Substrate Type on Emergence Patterns of Plecoptera and Trichoptera From Northeastern United States Headwater Streams

2019 ◽  
Vol 48 (6) ◽  
pp. 1349-1359 ◽  
Author(s):  
Kristin N Cheney ◽  
Allison H Roy ◽  
Robert F Smith ◽  
R Edward Dewalt
Keyword(s):  
Headwater Streams ◽  
Aquatic Insect ◽  
Insect Larvae ◽  
Insect Emergence ◽  
Emergence Period ◽  
Emergence Patterns ◽  
Aquatic Insect Emergence ◽  
Phenological Shifts ◽  
Potential Shifts ◽  
Biotic Environment

Abstract The timing and spatial distribution of aquatic insect emergence is linked to the abiotic and biotic environment in streams. Studies of aquatic insect emergence are needed to generate baseline data to identify potential shifts in phenology and habitat-related emergence with global change. The purpose of this study was to 1) compare the timing of Plecoptera (stonefly) species emergence between two streams with different thermal regimes and 2) characterize the distribution of emerging Plecoptera and Trichoptera (caddisflies) from wood, rock, gravel, and sand substrates in five forested, headwater streams. Emergence timing and duration varied among Plecoptera species, with Ostrocerca albidipennis (Walker) (Plecoptera: Nemouridae) emerging only in May and four species in the genus Leuctra (Plecoptera: Leuctridae) collectively emerging throughout the summer (May to September). We observed earlier emergence of Amphinemura nigritta (Provancher) (Plecoptera: Nemouridae) and a longer total emergence period for Leuctra ferruginea (Walker) (Plecoptera: Leuctridae) in the stream with ~1.5°C warmer temperatures, which suggested that some insects may experience phenological shifts in streams with subtle differences in temperature. The abundance of plecopteran and trichopteran taxa emerging from wood was generally greater than for gravel or sand, and sand was the least preferred emergence substrate. The results suggest that human actions that decrease large wood and increase fine sedimentation may decrease habitat quality for many insect larvae and limit preferred emergence substrates.

AUTONOMOUS HEAT SUPPORT SYSTEM OF ELECTRONIC BLOCKS OF SPACE APPLIANCES

2018 ◽  
pp. 72-78
Author(s):  
A. V. Gorbunov ◽  
Yu. A. Zhukov ◽  
E. V. Korotkov ◽  
A. V. Lekanov ◽  
V. G. Porpylev ◽  
...  
Keyword(s):  
Thermal Regime ◽  
Autonomous System ◽  
Supply Voltage ◽  
Operating Temperature ◽  
Electronic Devices ◽  
Space Technology ◽  
Structural Scheme ◽  
Spacecraft Design ◽  
Temperature Controlled ◽  
Operating Temperature Range

The vast majority of electronic devices on-Board Russian spacecraft is placed on a temperature-controlled mounting surface is ON, however, in some tasks there is a necessity to place a separate electronic units out thermostated panels on remote spacecraft design. The article presents an autonomous system of providing thermal regime of electronic blocks of spacecraft and objects of space technology that require maintaining the operating temperature and are unable to be installed on the thermostatic landing surfaces of spacecraft. The proposed autonomous system of providing thermal regime can operate autonomously in the extended operating temperature range of the installation surface from -80 to +80 °C when the supply voltage changes in the range from 75 to 550% of the nominal value. The review of the existing solutions is presented, the substantiation of the proposed decision is given, the structural scheme of autonomous system of providing thermal regime is given and its description and an example of application is given.

Task-driven RGB-Lidar Fusion for Object Tracking in Resource-Efficient Autonomous System

2021 ◽  
pp. 1-1
Author(s):  
Kruttidipta Samal ◽  
Hemant Kumawat ◽  
Priyabrata Saha ◽  
Marilyn Wolf ◽  
Saibal Mukhopadhyay
Keyword(s):  
Object Tracking ◽  
Autonomous System

Deep CNN-based autonomous system for safety measures in logistics transportation

2021 ◽  
Author(s):  
Abdelkarim Rouari ◽  
Abdelouahab Moussaoui ◽  
Youssef Chahir ◽  
Hafiz Tayyyab Rauf ◽  
Seifedine Kadry
Keyword(s):  
Autonomous System ◽  
Safety Measures ◽  
Deep Cnn

scholarly journals Infobot: An Autonomous System for Offline Shopping

2021 ◽  
Vol 1055 (1) ◽  
pp. 012004
Author(s):  
A Balaji ◽  
R Ragunathan ◽  
R Rithic Sai ◽  
V Nithya
Keyword(s):  
Autonomous System

On the Analysis of Hopf Bifurcation Associated with a Two-Fold Zero Eigenvalue, Part 1: Autonomous System

1999 ◽  
Vol 121 (1) ◽  
pp. 101-104 ◽  
Author(s):  
M. Moh’d ◽  
K. Huseyin
Keyword(s):  
Hopf Bifurcation ◽  
Limit Cycles ◽  
Autonomous System ◽  
Periodic Motions ◽  
Zero Eigenvalue ◽  
The Family ◽  
Dynamic Bifurcations ◽  
Formula Type

The static and dynamic bifurcations of an autonomous system associated with a twofold zero eigenvalue (of index one) are studied. Attention is focused on Hopf bifurcation solutions in the neighborhood of such a singularity. The family of limit cycles are analyzed fully by applying the formula type results of the Intrinsic Harmonic Balancing method. Thus, parameter-amplitude and amplitude-frequency relationships as well as an ordered form of approximations for the periodic motions are obtained explicitly. A verification technique, with the aid of MAPLE, is used to show the consistency of ordered approximations.

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