The work was an experimental study of natural heat transfer from heated cylinders fixed in variable shape air duct, made Pyrex glass. Two finned mild iron, outer diameter (12) mm, inner (10) rectangle fins dimensions (70*40) mm. angle two walls the duct changed to five angles α:(0°,3°,5°,10°,15°) with vertical make converge shape. were inside at top, centre and bottom. by supply power constant ...

It is now widely accepted that calcium (Ca) deficiency is linked to potato (Solanum tuberosum L.) tuber disorders and improved tuber health is expected through increased Ca availability. The purpose of this study was to optimize the Ca concentration in Murashige-Skoog (MS) basal medium for microtuber production and determine microtuber mineral composition, especially Ca content. The response of...

Ex vivo photographic temperature mapping of bipolar radiofrequency (RF) lesions in animal tissue is performed over a wide range of electrode tip spacings, tip lengths, tip diameters, tip temperatures, and lesion times. In vivo temperature measurements collected during clinical treatment of sacroiliac joint (SIJ) pain corroborate those collected ex vivo. Generation of a "strip lesion" connecting...

background trocar site, incisional hernia is one of the serious complications of laparoscopic surgery. as a result, many surgeons prefer to close the fascia, especially in those sites where a trocar of 10 mm in size or larger has been inserted. on the other hand, suturing the fascia may lead to damage of other tissues, such as the intestines; hence, some surgeons prefer not to close the fascia....

Induction of triploidy is one of the biotechnological methods in aquaculture used for genetic manipulation. It refers to a state where organisms have three complete sets of chromosomes instead of two and can result in sterility. Caffeine treatment that is safe and inexpensive, serve to induce triploidy in catfish. To suppress the second meiotic division, fertilized eggs were exposed to three di...

abstract: in this study, it has been tried to test the accuracy of output and hence the model efficiency in the predictions of 24 and 48 hour precipitation forecasting by choosing different schemes be assessed. therefore, in order to test the accuracy of model product, two conditions of rainfall precipitation and lack of rainfall precipitation were considered. four thresholds were taken. adapti...