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RISS 인기검색어
- 검색키워드
- 저자 : Omid Mahian (검색결과 3 건)
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How to Encourage Best Peer Reviewers: An Empiric Approach
Omid Mahian,Somchai Wongwises 대한의학회 2015 Journal of Korean medical science Vol.30 No.4
As editors of international journals, we are always challengedwith picking the most relevant, available and highly skilled peerreviewers and receiving their comments on time. When relevantreviewers are selected, no-one can guarantee that the reviewswill be submitted on time. One way to encourage the reviewerssubmit their comments and evaluations on time, orwith minimal delays, is to implement ‘spiritual’ privileges. Thatoption can be particularly helpful for traditional subscriptionjournals, where authors do not pay any submission, processing,or publishing fees. In response to timely submission of reviewsby responsible referees, journal editors can do a favor and processthe referees’ own manuscripts as high priority items. Ofcourse, such a favorable attitude does not mean that mistakesin the study design, statistical analyses and interpretation of theresults, ethical misconduct, or poor language can be toleratedand overlooked. Editors can use their reserves, add more rigorand invest more time for speeding up proper reviewing and editingof the most responsible reviewers’ submissions
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Nares Chimres,Thunyawat Chittiphalungsri,Lazarus Godson Asirvatham,Ahmet Selim Dalkılıç,Omid Mahian,Somchai Wongwises 대한기계학회 2020 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.34 No.10
The air side thermal performance of wavy fins with rectangular winglets are studied using experimental and numerical methods. The following parameters are selected for investigation: the attack angle, placed location, span and length of the rectangular winglet. The results show that all parameters affect the thermal performance of the air side. The best configurations of the winglet that provide the maximum j/f (1/3) for both winglet lengths are the 3.5 mm horizontal distance, 7 mm vertical distance, 60 o attack angle and 1.25 mm winglet span. Moreover, the thermal performance comparisons between the optimal design of the wavy fin with winglet and normal wavy fin are reported. Wavy fins with winglets provide a larger heat transfer coefficient, pressure drop and j/f (1/3) than those of normal wavy fins. For the j/f (1/3)comparison, wavy fins with winglets provide a j/f (1/3) greater than that of normal wavy fins by 5.4-14.6 %, with the Reynolds number ranging from 1650 to 4423.
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Experimental Investigation on the Performance of a Parallel Plate-Based Active Magnetic Regenerator
Thawatchai Keawkamrop,Ahmet Selim Dalkilic,Lazarus Godson Asirvatham,Jafar Amani,Omid Mahian,Somchai Wongwises 대한설비공학회 2018 International Journal Of Air-Conditioning and Refr Vol.26 No.2
This paper describes a prototype of a linear reciprocating magnetic refrigerator using a gadolinium parallel plate. The new design of the regenerator, installation, and experiment is presented. The regenerator consists of a gadolinium plate and an inlet/outlet section. The thickness and length of the gadolinium plate are 1mm and 80mm, respectively. The gap between parallel plates is 0.1mm. Water is used as the heat transfer °uid. The permanent magnet structure used in the present study can generate a maximum magnetic ¯eld intensity of 0.94 T. The effects of surface roughness of the gadolinium parallel plate on the temperature span and cooling capacity are investigated. The results show that there is no signi¯cant effect of surface roughness on the magnetic refrigerator performance at a high utilization factor. The results from the present study are important for the design of magnetic refrigerators operating at room temperature.
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