83 research outputs found
Ruffe (Gymnocephalus cernuus L.) growth and diet in Lake Dusia (southern Lithuania)
No full textFisheries Institute in Olsztyn, Poland Citation: Pilinkovskij A., Kesminas V., Bukelskis E., ivas L. 2014 -Ruffe (Gymnocephalus cernuus L.) growth and diet in Lake Dusia (southern Lithuania) -Arch. Pol. Abstract. The ruffe, Gymnocephalus cernuus (L.), is considered to be a food competitor with many commercially valuable fishes such as bream, Abramis brama (L.), roach, Rutilus rutilus (L.), pikeperch, Sander lucioperca (L.), and perch, Perca fluviatilis L. This paper presents the results of an investigation into the fish community structure of Lake Dusia and the population parameters (morphometry, age, growth, diet) of ruffe as one of the prevailing fish species in the lake. The fish community of Lake Dusia was dominated by ruffe, perch, and roach. The ruffe population constituted 64.1% of the fish community of the lake in relative abundance and 36.8% in biomass. An analysis of the ruffe diet revealed that Gammaridae and Chironomidae were the principal components in all age-classes. The ruffe population was comprised mainly of individuals 3+ and 4+ years of age. The mean total length (TL) of ruffe was 13.39 ± 1.79 cm (minimum-maximum: 6.12-19.93 cm). The growth in length calculated using the von Bertalanffy equation was L t = 21.3 [1-e -0.161(t-0.335) ]. Ruffe growth rates were found to slow as the fish aged. Ruffe growth variations were linked to population density, fish community structure in the water body, abundance of invertebrates (zooplankton and zoobenthos), and type of water body
Project for Implementing Interoperability of Optical Data Transmission Technologies
No full textAuthor Matas Laurynas. Project for Implementing Interoperability of Optical Data Transmission Technologies. Graduation Thesis. Supervisor dr. Rimantas, Plėštys. Kauno kolegija HEI, Faculty of Technologies, Department of Informatics and Media Technologies. Kaunas, 2024, 49 page.
Key words: technology comparison, optical passive network, technology compatibility.
The network connectivity situation in rural areas is poor, with many villages in the country lacking a developed network connectivity infrastructure. The project uses G-PON and XGS-PON technologies, which, according to the EU decree, by 2030 every household in rural areas must have access to gigabit internet. In this project, the networks for Labunava and Vainiku settlements have been designed to meet the highest standards and security criteria. The FTTx technologies have been designed in such a way that there will be no problems in the future in adapting these technologies to the new ones. This project is designed to meet the needs of the population. This work consists of: introduction, analytical part, design part, economic part, conclusions, list of references and other reference sources.Autorius Matas Laurynas. Duomenų optinio perdavimo technologijų suderinamumo įgyvendinimo projektas. Baigiamasis darbas. Vadovas dr. Rimantas, Plėštys. Kauno kolegija, Technologijų fakultetas, Informatikos ir medijų technologijų katedra. Kaunas, 2024, 49 psl.
Reikšminiai žodžiai: Technologijų palyginimas, optinis pasyvusis tinklas, technologijų suderinamumas.
Kaimiškųjų vietovių tinklo ryšio situacija prasta, daugelyje šalies kaimų nėra išplėtoto tinklo ryšio infrastruktūros. Projekte panaudotos G-PON ir XGS-PON technologijos, kurios pagal ES nutarimą iki 2030 m. kiekvienas namų ūkis kaimiškose vietovėse privalo turėti prieigą prie gigabitinio interneto. Šiame projekte, suprojektuoti tinklai Labūnavos bei Vainikų gyvenvietėms, kurie atitinka aukščiausius standartus bei saugumo kriterijus. FTTx technologijos suprojektuotos taip, kad ateityje nekiltų problemų šias technologijas suderinti su naujosiomis. Šis projektas projektuotas gyventojų poreikiui. Šį darbą sudaro: įvadas, analitinė dalis, projektinė dalis, ekonominė, išvados, literatūros sąrašas ir kiti informaciniai šaltiniai.
Disociacinių traukulių diferencinės diagnostikos iššūkiai. Atvejo aprašymas ir literatūros apžvalga /
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