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RISS 인기검색어
- 검색키워드
- 저자 : Vikas Kumar Mishra (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
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Impulse Controllability and Impulse Elimination in Rectangular Descriptor Systems
Vikas Kumar Mishra,Nutan Kumar Tomar,Mahendra Kumar Gupta 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10
In this paper, a decomposition of system matrices of linear time invariant rectangular descriptor systems is proposed. Using the decomposition, a technique is developed to check the impulse controllability for rectangular descriptor systems. Necessary and sufficient conditions are stated and proved to design a proportional plus derivative feedback such that the closed loop system is free of impulse. Examples are given to illustrate the presented theory.
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Vikas Kumar,Himanshu Mishra,Ashish Kumar 국립중앙과학관 2021 Journal of Asia-Pacific Biodiversity Vol.14 No.1
A total of 415 individuals of river lapwing were counted in four habitats namely open, unvegetated riverbank, vegetated river bank, river island and crop field, whereas foraging behavior was observed by focalobservation. River lapwings used walk-halt-peck technique most frequently throughout the year in allthe four habitats. Our study suggested that foraging techniques in all the four habitats were non-significantwhereas foraging success varied significantly (p¼0.049, df ¼ 3). During summer, the feeding ratewas significantly different (p˂< 0.0001, F ¼ 12.43, df ¼ 2) at open, unvegetated, river bank from otherhabitats. Moreover, foraging success rate was observed to be varied significantly (p < 0.0001, F ¼13.52, df¼ 2) in all the seasons and across all the habitats. The present study suggests that open, unvegetated riverbank was most preferred habitat since foraging success was significantly different in this habitat.
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Srivastava, Vikas Kumar,Gara, Rishi Kumar,Rastogi, Namrata,Mishra, Durga Prasad,Ahmed, Mohd Kaleem,Gupta, Shalini,Goel, Madhu Mati,Bhatt, Madan Lal Brahma Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.7
Background: To evaluate serum VEGF-A levels in squamous cell carcinoma of head and neck (SCCHN) patients and relationships with response to therapy. Materials and Methods: Serum VEGF-A levels in patients (n=72) treated with radiotherapy (RT) or radio-chemotherapy (RCT) and controls (n=40) were measured by ELISA. Results: Serum VEGF-A levels of the SCCHN cases were significantly higher (p=0.001) than in healthy controls, and in patients with positive as compared to negative lymph node status (p=0.004). Similarly, patients with advanced stage (Stage III-IV) disease had more greatly elevated levels of serum VEGF-A level than their early stage (Stage I-II) counterparts (p=0.001). In contrast, there was no significant difference (p=0.57) in serum level of VEGF-A in patients with advanced T-stage (T3-4) as compared to early stage (T1-2). Similarly, patients with distant metastasis had no significant (p=0.067) elevation in serum VEGF-A level as compared to non-metastatic disease. However, the non-responder patients had significantly higher serum VEGF-A level as compared to responders (p=0.001). Conclusions: Our results suggest that the serum VEGF-A level may be a useful biomarker for the prediction of response to therapy in SCCHN.
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( Kumar Guru Mishra ),( Vikas Bhatia ),( Ranjeeta Nayak ) 한국임상영양학회 2020 Clinical Nutrition Research Vol.9 No.3
Inadequate/excessive gestational weight gain (GWG) can cause adverse pregnancy outcomes and only few studies have described patterns of weight gain in Indian women. Also, studies pertaining to dietary intake throughout gestation are insufficient. This prospective cohort study was conducted to evaluate GWG and nutrient intake in all trimesters of pregnancy and investigate the relationship between themselves along with that of birth weight (BW). Our study was carried out in a population-based prospective birth cohort in Odisha, India. The 418 pregnant women were followed till delivery with measurements of maternal weight, weight gain throughout gestation, and BW. Macronutrients were assessed based on a 24-hour dietary recall method in each trimester. Women characterized by under-weight pre-pregnancy body mass index (BMI) were 16.20%, and a total of 6.45% did not comply with current weight gain recommendations. Particularly, overweight and obese women gained more weight than recommended. In a multivariate analysis GWG correlated significantly with BMI (p = 0.03), total calorie intake (p < 0.001) and fat intake (p < 0.001), while BW of newborns correlated significantly with adequacy of weight gain and fat intake (p < 0.001). Though measures are taken by health workers to record the weight but nutritional counseling is not being provided regularly. A high priority should be given to increase awareness among general population regarding the importance of diet in pregnancy and how to adhere to the balanced diet for optimal growth of child.
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Himanshu Mishra,Vikas Kumar,Ashish Kumar 국립중앙과학관 2018 Journal of Asia-Pacific Biodiversity Vol.11 No.3
A field study was carried out to investigate the population status, behavior, and distribution pattern of river lapwings during the study period of 2015–2017 in the Raebareli district, Uttar Pradesh, India. There was a significant difference in the mean population of river lapwings along the study sites but less significant difference in the mean population seasonally. An average of 541 individuals of river lapwings have been reported during the study period. The mean population size was maximum (164.5 ± 28.67) at Gegaso in 2016 and minimum (56.25 ± 28.34) at Sultanpur Barhaia in 2017, whereas the seasonal population status showed maximum (199.5 ± 2.12) count in the summer season at Gegaso and minimum (52.0 ± 4.2) in winter at Sultanpur Barhaia. Moreover, maximum (n = 38) nesting pairs were estimated at Gegaso and least (n = 11) at Unchahar. There was less significant difference in the number of chicks counted in both the breeding seasons (2016 and 2017), but significantly a higher number of chicks (n = 86) were documented at Gegaso and least (n = 25) at Sultanpur Barhaia. Overall, there was no significant difference in the behavioral activities during the breeding and nonbreeding season. The present study clearly indicates that the river bank was the most preferred habitat type and that the distribution pattern was found to be clumped in river lapwings.
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