Results 11 to 20 of about 40 (40)

From a cause of rapid fig tree dieback to a new threat to mango production: the invasive bark beetle Cryphalus dilutus Eichhoff (Coleoptera: Curculionidae, Scolytinae) and its associated fungi found on mango trees in Europe

EPPO Bulletin, Volume 53, Issue 3, Page 663-670, December 2023., 2023
Abstract Bark and ambrosia beetles (Coleoptera: Curculionidae) are receiving increasing scientific interest because of the economic losses that they can cause in invaded areas. Nonetheless, there are a number of emerging pest species, belonging to different tribes, for which invasions have likely been overlooked in the past due to their ...
Antonio Gugliuzzo, Giorgio Gusella, Giuseppa Rosaria Leonardi, Mariangela Benedetta Costanzo, Michele Ricupero, Davide Rassati, Antonio Biondi, Giancarlo Polizzi   +7 more
wiley   +1 more source

Salvinia plants in trade: what species are we actually talking about?

EPPO Bulletin, Volume 53, Issue 1, Page 108-116, April 2023., 2023
Abstract Incorrect labelling of plants in trade and misidentification are widespread. Likewise, in trade numerous names are being used for the ornamental aquatic plant known as ‘Kariba weed’, but rarely the correct scientific name Salvinia molesta Mitch. For inspection services of EPPO member countries, correct identification of S.
Johan L. C. H. van Valkenburg, Laurens F. Piet, Edu Boer   +2 more
wiley   +1 more source

Agrilus dureli: A new threat for European plant health?

EPPO Bulletin, Volume 51, Issue 2, Page 283-289, August 2021., 2021
Abstract With more than 3000 species, the jewel beetle genus Agrilus is considered the largest genus of the animal kingdom. Some of the species have been recognized as harmful to plants, but the majority of the genus remains unassessed. With A. planipennis it was found that, when introduced to a new environment, even (formerly) rare species only known ...
Gritta Schrader, Claire Gent, Björn Hoppe   +2 more
wiley   +1 more source

First record of Leucoptera malifoliella (O. Costa, 1836) (Lepidoptera: Lyonetiidae) in Tunisia

EPPO Bulletin, Volume 54, Issue 2, Page 224-229, August 2024.
Abstract The leaf blister moth, Leucoptera malifoliella is an invasive pest of apple and other Rosaceae species. It causes significant damage to apple leaves, threatening the production quality and the overall health of the tree. In this paper, we report the first record of L.
Rasmi Soltani, Hedi Rahmouni
wiley   +1 more source

Histology of Indian Aquatic Nechamandra alternifolia (Hydrocharitaceae)

Hortus Botanicus
Nechamandra alternifolia, the only species in the monotypic genus Nechamandra, has often been overlooked in scientific research, despite its unique evolutionary status and significant ecological potential.
Rajamani Santhosh Kumar, Iyer Radha Srinivasan, Vedpathak Shashank   +2 more
doaj   +1 more source

Новые и редкие для Хакасии чужеродные виды растений

Turczaninowia, 2017
В июле 2016 г. авторами настоящего сообщения была осуществлена экспедиция в Республику Хакасия. Основной целью поездки явилось уточнение видового состава чужеродных растений, а также осо- бенностей распространения как редких, так и более обычных ...
A.L. Ebel, S.I. Mikhailova, T.O. Strelnikova, S.A. Sheremetova, N.N. Lashchinskiy, T.V. Ebel   +5 more
doaj  

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Математическая физика: метод приведения к однородной задаче

2022
Метод приведения к однородной задаче применяется к неоднородным задачам математической физики с разделяющимися переменными. В пособии представлено применение метода, в котором решение нахоР...
openaire   +1 more source

Разработка системы управления группой Ð½Ð°Ð´Ð²Ð¾Ð´Ð½Ñ‹Ñ Ð±ÐµÑÐ¿Ð¸Ð»Ð¾Ñ‚Ð½Ñ‹Ñ ÑÑƒÐ´Ð¾Ð² в задаче сканирования акватории методами гидроакустической ÑÑ Ð¾Ð»Ð¾ÐºÐ°Ñ†Ð¸Ð¸

2022
The final qualifying work is devoted to the design, development and testing of an onboard control system for an unmanned vessel. The purpose of the work is to build an autonomous control system for an unmanned boat based on the built-in mathematical dynamic model of ship control.
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Применение методов машинного обучения и анализа Ð´Ð°Ð½Ð½Ñ‹Ñ Ð² одной задаче Ð¼ÐµÑ Ð°Ð½Ð¸ÐºÐ¸ контактного взаимодействия

2021
This dissertation work presents an ML-based approach to solution of contact mechanics problem. The problem itself is an example of Hertz’ contact problem of two elastic bodies. The methodology consists of three steps. First-up, a numerical solution of a problem is retrieved by using Ansys FEM-package.
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Исследование метода градиентного бустинга в задаче обнаружения ÑÐµÑ‚ÐµÐ²Ñ‹Ñ Ð°Ñ‚Ð°Ðº

Целью работы является повышение качества обнаружения вторжений ансамблевых моделей с использование градиентного усиления в сетевом трафике.
openaire   +1 more source