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權炳善,朴又龍,鄭東熙,鄭東云,李乙台 順天大學校 農業科學硏究所 1996 農業科學硏究 Vol.10 No.-
The experiment was conducted to reduce the required time and production cost with the harvesting the garlic using the machine and the results are as follows. On labor saving effect in transparent vinyl mulching, digging working hours per 10a in the case of using tractor are 55 min, fixing + turning time is 11 min, the time of harvest is 66 min, digging working hours using cultivator are 90 min and fixing + turning time is 9 min, but the time of hand harvesting is 693 min. and 41 sec and in digging labor saving effect, tractor shows 90% in the harvesting period and harvest by cultivator 86%. On non mulching cases, the harvest by tractor takes 44 min and that by cultivator does 75 min, and digging required time saving effect shows 93% in the tractor harvest and 89% in the cultivator harvest. Therefore, on the working efficiency per hour, in the case of tractor with digger vinyl mulching and nonmulching show 0.091∼0.136㏊ and in the case of cultivator with digger both show 0.061∼0.08㏊, so in the mechanized harvest of garlic, the harvest by tractor with digger is the best. On the cost and time save of harvesting the garlic with labor saving effect, tractor shows 19 hours and 4 min/10a in vinyl mulching and 18 hours and 43 min/10a in nonmulching, so it shows the short hours for harvesting. And labor saving effect shows 30% in comparison with 25 hours and 43 min∼27 hours and 30 min (95,250∼102,375 won) of the hand harvest, so the cost was reduced to 69,111∼71,400 won. On the cultivator with diggers, vinyl mulching takes 20 hours and 12 min and nonmulching 19 hours and 6 min, so the labor saving effect and cost were reduced to 25∼26% (71,475∼75,450 won) in comparison with the manual harvest.
이석,안중배,김진안,조홍근,김범수,허갑범,이현철,임승길,정윤석,조재용,라선영,정동운 대한내과학회 1994 대한내과학회지 Vol.47 No.3
Pheochromocytoma originates from chromaffin cells and occurs in the adrenal medulla in majority. About 10 percents of pheochromocytomas can occur in extra- adrenal sites, and anywhere along the fetal route of chromaffin tissues, Pheochromocytomas involving the urinary bladder are rare neoplasms which probably account for less than 0. 06% of all bladder tumors. A characteristic symptom complex due to increased catecholamine release in association with detrusor activity during micturition is often the essential element required for the diagnosis of this rare lesion. However, the diagnosis is often delayed for many years, because most physicians are unfamiliar with the symptoms, due to the rarity of this neoplasm. We report two cases of functioning pheochromocytoma of the urinary bladder with typical symptoms. The tumors of patients were explored transperitoneally and removed by partial cystectomy.