Leonardo D. Dumalhin

Processing of Wild Sunflower with Different Moisture Contents into Solid Bio Fuel

Fabie T. Dummapi, Jacqueline I. Liniasan, Marvin T. Valentin, Milagros B. Onalan, Leonardo D. Dumalhin, Marlon N. Galad, Daniel Ciolkosz, Algirdas Jasinskas & Eva J. Kelly · Journal of Energy Research and Reviews · 2021

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 properties like ignition time...

Open access Research Article 10.9734/jenrr/2021/v7i230185

Concept Design of a Portable Carrot Seeder

Marvin T. Valentin, Alex Smeets, Daniel E. Ciolkosz, Algirdas Jasinskas, Milagros B. Onalan, Alvin C. Dulay, Leonardo D. Dumalhin, Constantino T. Sudaypan Sr., Stanley F. Anongos Jr., Cheryll C. Launio, Marlon N. Galad, Roger Lee M. Suclad & Keithler M. Pagnas · Journal of Engineering Research and Reports · 2021

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 and planting requirements such...

Open access Research Article 10.9734/jerr/2021/v20i417302