The boson representation of the sp(4, R) algebra and two distinct deformations of it, spq (4, R) and spt(4, R), are considered, as well as the compact and noncompact subalgebras of each. The initial as well as the deformed representations act in the same Fock space, H, which is reducible into two irreducible representations acting in the subspaces H + and H − of H. The deformed representation o...

Several studies have suggested that covert stressors can contribute to bee colony declines. Here we provide a novel case study and show using radiofrequency identification tracking technology that covert deformed wing virus (DWV) infections in adult honeybee workers seriously impact long-term foraging and survival under natural foraging conditions. In particular, our experiments show that adult...

The effects of sublethal pesticide exposure on queen emergence and virus titers were examined. Queen rearing colonies were fed pollen with chlorpyrifos (CPF) alone (pollen-1) and with CPF and the fungicide Pristine(®) (pollen-2). Fewer queens emerged when larvae from open foraging (i.e., outside) colonies were reared in colonies fed pollen-1 or 2 compared with when those larvae were reared in o...

Construction wastes have become the major source of solid wastes in Hong Kong. Thousands of tonnes of solid wastes are produced every year from construction and demolition activities. Increasing generation of these wastes has caused significant impacts on the environment and aroused growing public concerns. Therefore, the minimization of construction wastes has become a pressing issue. This pap...

The applications of the deep belief network (DBN) for addressing practical engineering issues have recently emerged all over world thanks to its accuracy and availability data. In this paper, a predictive model using DBN was employed investigate factors that affect ground-penetrating radar (GPR) signals from rebar embedded in concrete structures. Four variables, namely temperature, relative hum...

This study investigated the feasibility of H2 production by acid corrosion, employing a by-product from fertilizer industry (Hexafluorsilic - H2SiF6) and waste iron sources. Different masses metal three different sources: powder (waste workshops), steel wool rebar (construction waste), were reacted with various proportions H2SiF6 HCl. The influence variables was evaluated factorial design, veri...

Depending on the desulfurization reaction temperature, it can be divided into fly ash generated at hightemperature furnace zone and at low-temperature flue gas zone. For simulating those two kinds of desulfurization ash, the ordinary fly ash mixed with different weight percentage of CaSO4·2H2O is divided into 2 groups, the first group is followed by calcining at 900°C, another drying at 100°C. ...