The aim of this paper is present an application of modelling and identification techniques in a sucker-rod pump system. The results show a dynamic system model and its relationship with the real process variables in this kind of artificial lift oil method. The model obtained from experiments with real data is representative and can be used for applications, such as for instance, a control syste...

The sequence of a cDNA encoding the corticotropin-releasing factor precursor has been identified by screening lambda gt11 libraries constructed from poly(A)+ RNA of the hypothalamic region of the white sucker Catostomus commersoni brain with synthetic oligonucleotide probes deduced from the sequence of the rat corticotropin-releasing factor. The amino acid sequence of corticotropin-releasing fa...

Eurytrema spp. is a trematode worm that generally attacks the pancreas of livestock and humans which can cause chronic interstitial pancreatitis, weight loss leads to decreased productivity ends in death. The purpose this study identify parasitic also find out prevalence rate Brahman Cross cattle slaughtered Banda Aceh slaughterhouse. This used sample 20 pieces from worms were collected by taki...

Sago palm is one of the commodities being cultivated and traded in Malaysia for its high starch content. seedling, or commonly referred to as sucker, planting material sago cultivation. This paper discusses life cycle assessment approach calculation inventory production sucker. In this study, functional unit defined The process starts from reception suckers suppliers, raft preparation, rafts, f...

A scanning electron microscopic study was performed on the surface ultrastructure of metacercariae and adults of Metagonimus takahashii. Metacercariae were collected from the scale of crucian carp (Carassius auratus), and adult flukes were harvested 1-4 weeks after infection to rats. In excysted metacercariae, the oral sucker had type I (numerous) and type II (seven in total) sensory papillae. ...

A contact lens may be removed from the eye either manually or by using a small rubber sucker. The removal of lenses by the rubber sucker technique is difficult at times, especially when the lens is fenestrated, as the vacuum cannot be maintained. Assistance in the removal of the lens may be obtained by modifying existing rubber suckers. The bulb is cut off with a sharp blade and into the lumen ...

A commonly overlooked aspect of conservation planning assessments is that wildlife managers are increasingly focused on habitats that contain non-native species. We examine this management challenge in the Gila River basin (150,730 km(2)), and present a new planning strategy for fish conservation. By applying a hierarchical prioritization algorithm to >850,000 fish records in 27,181 sub-watersh...

Studies of innate immunity in fish species of special concern are essential for better understanding of their health status during hatchery rearing conditions. The cytochemical and morphological characterizations of blood granulocytes have been used to provide information about phylogenetic differences and determine the potential use of neutrophil function assays. Rapid, simple, cytochemical st...

Several studies have shown that the satisfactory operation of oil wells with sucker rod pumps is attributed to the techniques and methods able to control the performance of the well. The Polytechnic School of Federal University of Bahia, through the Artificial Lift Lab, has nowadays a reduced plant of a sucker rod pump with an artificial well of 32m height fully instrumented, with full access a...

background: a known species lutztrema (lutziella) microacetabularae rhode, 1966 is being described for the first time from pakistan. this species is characterized by having body long and slender, oral sucker subterminal, acetabulum smaller than oral sucker lying in anterior third of the body, pharynx small, esophagus promi-nent which become gradually wider and bifurcates in to two rudimentary c...