Dipterocarp species are the mainstay of forest products in form carpentry wood. Preserving Dipterocarpaceae Forest Plantation is important. This study aims to determine percentage optimal canopy cover for growth D . lanceolata Furthermore, primary data were obtained by measuring and observing diameter at breast height, tree canopy, environmental conditions (temperature humidity). Meanwhile, sec...

Given appropriate representations of the semantic relations between carpenter and wood and between mason and stone (for example, vectors in a vector space model), a suitable algorithm should be able to recognize that these relations are highly similar (carpenter is to wood as mason is to stone; the relations are analogous). Likewise, with representations of dog, house, and kennel, an algorithm ...

Falls from height remain the most common cause of workplace fatalities among residential construction workers, accounting for 64% of the fatalities in residential building and 100% of the fatalities among framing contractors in 2010 (BLS, 2011). Despite a recent decrease in fall incidence rates (BLS, 2011), 164 of the 1,025 carpenter apprentices surveyed (16%) reported a fall from height in the...

Exposure to wood dust was measured among 26 carpenters at 13 building projects. Sampling days were chosen randomly. Individual tasks, based on technology applied and material used during a working day, were sampled separately. From these task-based measurements, 8 h time-weighted average concentrations were calculated. Sampling was performed in accordance with a protocol that was developed by t...

Imagine a wooden plate with a set of non-overlapping geometric objects painted on it. How many of them can a carpenter cut out using a panel saw making guillotine cuts, i.e., only moving forward through the material along a straight line until it is split into two pieces? Already fifteen years ago, Pach and Tardos investigated whether one can always cut out a constant fraction if all objects ar...

This paper aims at describing the diagnostic study on structural performance of the XV century wooden roof of Villa Tomati, located in Genoa, Italy. Several wooden roofs were analyzed with the purpose to obtain fundamental data in order to restore these ancient covers, which can be considered particularly valuable from the historic-artistic point of view. General principles regarding both Resto...