This paper continues the previous research of the author, in which the author surveyed cassava grating surfaces on the Ghanian market. The author designed and tested three new grating surfaces to improve efficiency and ensure interchangeability of the cassava graters. 

This study looks at solutions to menstrual hygiene from a materials perspective, assessing available materials for the properties needed for a good napkin, and reviewing the literature for comparison between these and other materials. 

This disseratation by KNUST student Priscilla Ama Dede Narh evaluates the performance of a manual two-row groundnut planter developed in a Creative Capacity Training in New Longoro, Ghana. The planter was evaluated on the parameters of seed damage, number of seeds discharged, seeding rate, planting depth, inter-row and intra-row spacing, effective field capacity and effective field effiiciency.

Trash is a big problem in Sao Paulo, Brazil. UC Davis students Ryan Pang and Daniel Quinn from D-Lab have worked to design and prototype a PET Bottle Strip Cutter for Miguel Chavez in the Innovation Center-Vila Nova Esperanca. The problem with the existing bottle strip cutter currently used by the center is that the design will not allow for adjustments to be made in the size of the plastic string created and is not set up for different sized plastic bottles. Cutting bottles into strands of plastic is important because the string can then be woven to make items such as chairs, green houses, fencing, and more. These products can generate income to improve the lives of people living in poverty. Additionally, in improving this design we can decrease the amount of plastic trash accumulation by repurposing it to create desirable goods.