Cannabis sativa L. (Cannabaceae) is one of the earliest known cultivated plants and is important in the global economy today as a licit and an illicit crop. Molecular markers distinguishing licit and illicit cultivars have forensic utility, but no direct comparison of hemp and marijuana amplified fragment length polymorphism (AFLP) has been made to date. Genetic variation was surveyed in three ...

Efficient liberation of fermentable soluble sugars from lignocellulosic biomass waste not only decreases solid waste handling but also produces value-added biofuels and biobased products. Industrial hemp, a special economic crop, is cultivated for its high-quality fibers and high-value seed oil, but its hollow stalk cords (hurds) are a cellulosic waste. The cellulose-solvent-based lignocellulos...

Earthen architecture largely supports the concept of sustainable building. In seismically active area eastern Croatia, there is a large number rammed earth houses, many which are over 100 years old. All these houses were built using empirical knowledge, i.e., without applying national design standards. order to support preservation ethnic villages and traditional field survey was conducted. Par...

This paper presents an optimized washing protocol for as-received natural fibers, prior to large-scale composite manufacturing, the structural strengthening of historic masonry. The aim was achieve a simple standard cleaning fiber surfaces from low molecular weight constituents that may be detrimental towards interfacial strength without damaging fibers. proposed procedure employs application s...

Hemp concrete is more and more recommended by eco-builders because hemp is a renewable plant, recyclable and does not degrade within time. To integrate this material into buildings, it is important to study its hygrothermal behaviour. In this paper, two models have been investigated: a heat transfer model (Th) and a hygrothermal model accounting for heat and moisture transport through building ...

Raw hemp fibers are alkaline delignified to evaluate the effect of lignin on moisture uptake behavior hemp. Samples subjected absorption/desorption isotherms from 5% 95% relative humidity at three different temperatures (15, 25, and 35°C). The sorption ratio between untreated is lowered by 25%. Hysteresis makes evident greater influence binding low while high humidity, cellulose plays most impo...

This paper presents an antenna of High altitude electromagnetic pulse (HEMP) radiating-wave simulator which expands the testing zone larger than the traditional transmission line simulator. The numerical results show that traverse electramagnetic (TEM) antenna can be used to radiate HEMP simulation radiating wave, but in low frequency band the emissive capability is poor. The experiment proves ...