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Pushkarna Mukesh,Ashfaq Haroon,Singh Rajveer,Kumar Rajeev 대한전기학회 2022 Journal of Electrical Engineering & Technology Vol.17 No.5
This paper presents a new analytical method which is derived from a basic power fl ow equation and then modifi ed for an unbalanced feeder for optimal sizing and sitting of Type-IV DG (A DG which supply active power and in return consume reactive power) at a large scale in an unbalanced distribution system. Introducing a DG that requires reactive power possesses some serious concern with power quality and this situation becomes more venerable when DG is connected in an unbalanced feeder. This is done by identifying the power loss at each node and a new power economy factor which represents exact power loss formulae in terms of economy is formulated for unbalanced feeders considering power loss minimization technique. Further, it is then minimized to acquire the optimal sizing and sitting of DG. For validating the results, IEEE 34 and 123 bus systems unbalanced system was used and it has been found that the proposed method shows signifi cant power loss reduction in the distribution system.
Saran, Jagdish,Pushkarna, Narinder The Korean Statistical Society 2002 Journal of the Korean Statistical Society Vol.31 No.3
In this paper, some general results for obtaining recurrence relations between product moments of order statistics for doubly truncated distributions are established. These results are then applied to some specific doubly truncated distributions, viz. doubly truncated Weibull, Exponential, Pareto, power function, Cauchy, Lomax and Rayleigh.
Moments of Order Statistics from Doubly Truncated Linear-Exponential Distribution
Saran, Jagdish,Pushkarna, Narinder The Korean Statistical Society 1999 Journal of the Korean Statistical Society Vol.28 No.3
In this paper we establish some recurrence relations for both single and product moments of order statistics from a doubly truncated linear- exponential distribution with increasing hazard rate. These recurrence relations would enable one to compute all the higher order moments of order statistics for all sample sizes from those of the lower order in a simple recursive way. In addition, percentage points of order statistics are also discussed. These generalize the corresponding results for the linear- exponential distribution with increasing hazard rate derived by Balakrishnan and Malik(1986)
Large Bilateral Adrenal Leiomyomas Presenting as Calcified Adrenal Masses: A Rare Case Report
Santosh Kumar,Bhuvanesh Nanjappa,Pallavi Agrawal,Arawat Pushkarna 대한비뇨의학회 2014 Investigative and Clinical Urology Vol.55 No.5
We report the case of a 55-year-old woman with bilateral, large, calcified adrenal tumors who was treated by laparoscopic adrenalectomy. The patient presented with upper abdominal discomfort for the past 5 years. Her imaging showed bilateral enlarged adrenal glands up to 10-cm size with punctate calcifications. Positron emission tomography scan demonstrated moderate fluorodeoxyglucose avidity in the left adrenal mass. Bilateral laparoscopic adrenalectomy was performed through a transperitoneal approach. The postoperative period was uneventful, and the patient was discharged on the third postoperative day. Histology findings were consistent with adrenal leiomyomatosis.