Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Marvin T. Valentin"'
Autor:
Marvin T. Valentin, Keithler M. Pagnas, Roger Lee M. Suclad, Algirdas Jasinskas, Rolandas Domeika, Egidijus Šarauskis
Publikováno v:
Heliyon, Vol 10, Iss 23, Pp e39605- (2024)
Accurate planting of the required number of carrot seeds is one of the important parameters in developing a carrot seeding device. This study developed a metering mechanism that promotes the deposition of
Externí odkaz:
https://doaj.org/article/d3cffd45df9f49f59f307d1be2336a1c
Autor:
Marvin T. Valentin, Andrzej Białowiec
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract The adaptation of biochar in anaerobic digestion (AD) positively influences the conversion of substrate to biomethane and promotes system stability. This study investigated the influence of biochar (BC) doses (0 to 8 g/L) on the Biochemical
Externí odkaz:
https://doaj.org/article/de61a8692c33492dbad6022cd4782449
Publikováno v:
Biotechnology for Biofuels and Bioproducts, Vol 16, Iss 1, Pp 1-21 (2023)
Abstract This paper explores the mechanisms of biochar that facilitate direct interspecies electron transfer (DIET) among syntrophic microorganisms leading to improved anaerobic digestion. Properties such as specific surface area (SSA), cation exchan
Externí odkaz:
https://doaj.org/article/890c164654db465a9311d47f3a981eb4
Autor:
Marvin T. Valentin, Andrzej Białowiec, Davut Karayel, Algirdas Jasinskas, Daniel Ciolkosz, Jeffrey A. Lavarias
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-16 (2023)
Abstract A carrot seeder that utilizes a cylindrical component serving as both hopper/metering device to deposit seeds precisely into planting beds/hills at a uniform interval along a straight row over a plant bed was developed in this study. The see
Externí odkaz:
https://doaj.org/article/df88e5d0e3be4482ace46502660e7002
Autor:
Marvin T. Valentin, Andrzej Białowiec, Davut Karayel, Algirdas Jasinskas, Daniel Ciolkosz, Jeffrey A. Lavarias
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-1 (2023)
Externí odkaz:
https://doaj.org/article/914afdeefd054a73b51da9b139d579c2
Autor:
Milagros B. Onalan, Roger Lee M. Suclad, Cheryll C. Launio, Stanley F. Anongos, Marlon N. Galad, Keithler M. Pagnas, Marvin T. Valentin, Alex Smeets, Leonardo D. Dumalhin, Constantino T. Sudaypan, Alvin C. Dulay, Algirdas Jasinskas, Daniel Ciolkosz
Publikováno v:
Journal of Engineering Research and Reports. :131-141
A concept design of a carrot seeder, filed for patent application, was successfully developed in this study. Farmers were visited and interviewed and the data regarding their existing practices in planting carrots, corresponding tools and equipment a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cbf780b23fcda6fed2b174ee3ef3ee3
https://doi.org/10.9734/jerr/2021/v20i417302
https://doi.org/10.9734/jerr/2021/v20i417302
Autor:
Daniel Ciolkosz, Milagros B. Onalan, Marlon N. Galad, Eva J. Kelly, Algirdas Jasinskas, Leonardo D. Dumalhin, Jacqueline I. Liniasan, Marvin T. Valentin, Fabie T. Dummapi
Publikováno v:
Journal of Energy Research and Reviews. :1-9
Wild sunflower with moisture contents of 16%, 12% and 8% was densified without the addition of binding agent. The physical properties of the formed briquettes such as mass, dimensions, volume, density and shattering resistance were evaluated. Thermal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c447b428f764fe8828d8e660a69d97cb
https://doi.org/10.9734/jenrr/2021/v7i230185
https://doi.org/10.9734/jenrr/2021/v7i230185
Autor:
Marvin T. Valentin, Hanwu Lei, Moriko Qian, Elmar Villota, Ireneo C. Agulto, Melba D. Denson, Wendy Mateo, Victorino T. Taylan, Jeffrey Lavarias, Shiela Marie Villota
Publikováno v:
ACS Omega, Vol 4, Iss 4, Pp 7088-7095 (2019)
This study is motivated to increase the value of cocoa pod husk (CPH), which is currently considered as waste in the cocoa farming, by converting it to activated carbon (AC). The main goal is to co...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9a707221a33823b537c678330cd2f9b
https://doaj.org/article/9b7a73d21e914b59a9c1d50f88950943
https://doaj.org/article/9b7a73d21e914b59a9c1d50f88950943
Autor:
Algirdas Jasinskas, Vytautas Kleiza, Dionizas Streikus, Rolandas Domeika, Edvardas Vaiciukevičius, Gvidas Gramauskas, Marvin T. Valentin
Publikováno v:
Sustainability, Vol 14, Iss 1068, p 1068 (2022)
Sustainability; Volume 14; Issue 3; Pages: 1068
Sustainability (Basel) 2022, 14, 1068, 16 p.
Sustainability; Volume 14; Issue 3; Pages: 1068
Sustainability (Basel) 2022, 14, 1068, 16 p.
Three coarse herbaceous energy plants such as Miscanthus (Miscanthus sinensis), sida (Sida hermaphrodita Rusby) and cup plant (Silphium perfoliatum L.) were grown and investigated in the experimental fields of Vytautas Magnus University Agriculture A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dee7171c98e24cb1649cd7d3a55d0ec
https://doi.org/10.3390/su14031068
https://doi.org/10.3390/su14031068
Autor:
Marvin T. Valentin
Publikováno v:
CLSU International Journal of Science & Technology. 1
This study was conducted to develop a push-type double-row carrot seeder. Specifically, the study investigated the performance of the carrot seeder at different operating speeds in terms of field efficiency, field capacity, germination, and uniformit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa27046c02f09a29988b899061f4cb16
https://doi.org/10.22137/ijst.2016.v1n2.04
https://doi.org/10.22137/ijst.2016.v1n2.04