Results 1 to 10 of about 299,272 (340)

Low-Sidelobe Pattern Synthesis for Spaceborne Array Antenna Based on Improved Whale Optimization Algorithm

open access: yesApplied Sciences, 2023
For the purpose of fulfilling the low sidelobe level (SLL) requirements for spaceborne phased array antenna pattern synthesis, this paper proposes a new improved whale optimization algorithm (IWOA).
Hongming Hu   +5 more
doaj   +1 more source

Optimization researches on the cooling-down process of the linde-hampson refrigeration system for a high-low temperature test chamber

open access: yesCase Studies in Thermal Engineering, 2023
This paper focus on the cooling-down performance of the LHRS for a high-low temperature test chamber, and proposed a new method to optimize the cooling-down process of the LHRS based on a quasi-steady-state simulation model to investigated the optimal MR
Jingpeng Zhang   +6 more
doaj   +1 more source

A New Remote Sensing Change Detection Data Augmentation Method Based on Mosaic Simulation and Haze Image Simulation

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The quality of optical remote sensing images is largely affected by clouds and haze. In addition, the mosaicking image of multiple remote sensing images, due to objective factors such as acquiring time or climate conditions, will lead to large spectral ...
Zhipan Wang   +4 more
doaj   +1 more source

SiamHRnet-OCR: A Novel Deforestation Detection Model with High-Resolution Imagery and Deep Learning

open access: yesRemote Sensing, 2023
Forests play a critical role in global carbon cycling, and continuous forest destruction together with other factors has accelerated global warming.
Zhipan Wang   +5 more
doaj   +1 more source

A Combined Residual Detection Method of Reaction Wheel for Fault Detection

open access: yesShanghai Jiaotong Daxue xuebao, 2021
A fault detection method of combined residual is proposed to effectively master the health state of the reaction wheels of in-orbit satellite according to the telemetry data. Based on the characteristics of in-orbit telemetry data, in the proposed method,
HE Xiawei, CAI Yunze, YAN Lingling
doaj   +1 more source

Genetic diversity and apple leaf spot disease resistance characterization assessed by SSR markers [PDF]

open access: yesCrop Breeding and Applied Biotechnology, 2016
Among the cultivation problems of apple production in Brazil, Apple Leaf Spot (ALS) disease represents one of the main breeding challenges. This study aims at analyzing the genetic diversity among 152 apple scion accessions available at the Apple Gene ...
Gustavo H.F. Klabunde   +8 more
doaj   +1 more source

Body Remains Left by Bird Predators as a Reliable Source for Population Genetic Studies in the Great Capricorn Beetle Cerambyx cerdo, a Veteran Oak Specialist

open access: yesInsects, 2021
Obtaining biological material for DNA extraction is often challenging in organisms of conservation interest. Non-invasive sampling (i.e., sampling without injuring or disturbing an animal) is preferred as it carries no risk to the population’s survival ...
Aleksander J. Redlarski   +5 more
doaj   +1 more source

Disentangling Species Delineation and Guiding Conservation of Endangered Magnolias in Veracruz, Mexico

open access: yesPlants, 2021
The Mexican state of Veracruz has suffered very high deforestation rates in the last few decades, and despite the establishment of protected areas and conservation projects, primary forest is now mainly persisting in mostly small, scattered, fragmented ...
Fabián Augusto Aldaba Núñez   +3 more
doaj   +1 more source

Revisiting the two-side optimization problem in satellite pursuit-evasion

open access: yesMATEC Web of Conferences, 2017
In the present paper two-side optimization problem where the intercepting satellite pursuits the target satellite was studied. In the pursuit-evasion game the continuous thruster and the simple central gravity with J2 perturbation were involved for two ...
Zhang KeKe   +3 more
doaj   +1 more source

Fungal Genomic Resources for Strain Identification and Diversity Analysis of 1900 Fungal Species

open access: yesJournal of Fungi, 2021
Identification and diversity analysis of fungi is greatly challenging. Though internal transcribed spacer (ITS), region-based DNA fingerprinting works as a “gold standard” for most of the fungal species group, it cannot differentiate between all the ...
Mir Asif Iquebal   +14 more
doaj   +1 more source

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