In the history of mankind, development systems escape goes back to distant past. ancient times, in countries Rome, Greece, Egypt, and later European regions, large-scale use collector-drainage was established. The article presents hydrodynamic processes occurring open drainages. problems that arise design construction drainages are highlighted. non-wash rate table given building codes regulatio...

In this work, adsorption of the potassium amyl xanthate collector on the pure chalcopyrite surface was studied by applying atomic force microscopy (AFM). The adsorption experiments were carried out at different concentrations of the collector and at diverse pH values in the presence or absence of exterior ions. The changes occurring in the surface morphology of chalcopyrite due to the collector...

In the article state of irrigation-land-reclamation Ferghana valley in condition cotton monopoly 1950-1970 is closely observed. Besides, measures on improvement irrigation system by Soviet government and their results are analyzed grounds primary sources. KEY WORDS: valley, irrigation-land-reclamation, monopoly, government, system, collective farm, drainage, collector, virgin lands.

In recent years physicians have tended to sit back in a complacent manner somewhat falsely confident that the pure food and drug act had taken care of or will take care of any fake or hoax perpetrated on the people. One has only to acquire a television set, however, to have an intensive course in pharmacology-to become aware of BC and AC recommended by doctors everywhere, of K2 which destroys h...

The paper analyses the performance of a spherical solar collector compared to efficiency flat-plate collector, which is type that does not use tracking system in collecting radiation for energy conversion. Spherical benefits from constant value angle incidence, optimizes strikes absorber device and maximizes collection. Besides, geometry has larger area equal dimensions, width, length. combined...

Ground-based high-dispersion spectroscopy could reveal molecular oxygen as a biomarker gas in the atmospheres of twin-Earths transiting red dwarf stars within the next 25 years. The required contrasts are only a factor of 3 lower than that already achieved for carbon monoxide in hot Jupiter atmospheres today but will need much larger telescopes because the target stars will be orders of magnitu...

Accurate road speed predictions can help drivers in smart route planning. Although the issue has been studied previously, most existing work focus on arterial roads only, where sensors are configured closely for collecting complete real-time data. For collector roads where sensors sparsely cover, however, speed predictions are often ignored. With GPS-equipped floating car signals being availabl...

Depletion of fossil fuels, increase in energy demand, escalation of cost of fuels and environmental pollution has enforced all the countries to give thought on using the renewable energy sources. Among all the possible renewable energy sources solar energy may be a better substitute. The main objective of solar energy application is its collection by collecting device of suitable shape and prop...

Failure of kidney to ascend during embryologic development results in a pelvic kidney. Prevalence rate of crossed fused renal ectopia 1 in 724 paediatric autopsies. These kidneys are often small and abnormally rotated. The ureters are often short; poor drainage and dilatation of collecting system predispose to secondary infection and calculi formation. The blood supply is often complex; multipl...

The mixed cationic collector cetyltrimethylammonium chloride (CTAC) and nonionic collector octanol (OCT) was found to exhibit a synergistic effect on the flotation and adsorption of muscovite. To understand the underlying synergistic mechanism, flotation, contact angle, surface tension, and adsorption measurements were carried out. The results obtained from flotation measurements indicated that...