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A NOTE ON OPTIMAL ORDER LEVEL FOR DETERIORATING ITEMS WITH UNIFORM DEMAND RATE
S.S.ROUTRAY,S.K.PAIKRAY,U.K.MISRA 장전수학회 2014 Proceedings of the Jangjeon mathematical society Vol.17 No.3
An optimal order level inventory problem is discussed with the uniform demand rate. It is assumed that the inventory system deals with three types of items with uniform demand rate and shortages are allowed. The scheduled time is xed for all the items deteriorate at a time varying rate. There is no repair or replacement of deteriorated items during the given cycle. In this problem we have taken mixed seasonal, non seasonal and purely seasonal items which are stored at own as well as rented ware houses. A numerical example is taken up to illustrate the solution procedure.
Biswajita Dash,Krutika L. Routray,Sunirmal Saha,Satoru Yoshimura,Soumyaranjan Ratha,Manoj Ku Rout 한국전기전자재료학회 2024 Transactions on Electrical and Electronic Material Vol.25 No.2
CoFe2O4 (CFO) nanoparticles with different contents of Ni (x = 0.0, 0.05, 0.1, 0.15, and 0.2) (CoNi x Fe (2−x) O 4 ) were prepared via sol–gel auto combustion method. The structural characteristics of the prepared samples were characterized using room temperature X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), RAMAN. Moreover, the electrical conductivity and magnetic properties of the nanoferrites were investigated using impedance analyzer and vibrating sample magnetometer. Pure CFO and Ni doped CFO showed spinel crystalline structure with presence of secondary phase at higher doping content of Ni. The FESEM micrographs of the nano ferrites showed different aggregations for the different Ni contents and reduction in particle size was obtained with increasing Ni content which was also divulged from the crystallite sizes calculated from XRD data. With Ni substitution, saturation magnetization was found to decrease rapidly. The frequency (100 Hz–1 MHz) and temperature (30–450°C) dependent dielectric properties show that the dielectric constant is T-independent and at a certain point increasing trend overcomes. Magnetodielectric (MD) studies revealed that the magnetic ordering of Ni doped CFO consequences in the increase in number of polar domains thereby improving the MD effect. The high MD property outcome of this work established the unifi cation of the synthesized samples for multifunctional device applications.
Mihir Narayan Mohanty,Anurag Kumar,Aurobinda Routray,Prithviraj Kabisatpathy 제어·로봇·시스템학회 2010 International Journal of Control, Automation, and Vol.8 No.6
Classification and detection of power signal disturbances are most essential to ensure the good power quality. The power disturbance signals are non-stationary in nature. Non-stationary signal classification is a complex problem and equally a difficult task. In this paper we present a new method for accurate classification of power quality signals using Support Vector Machines (SVM) with Optimized Time-Frequency Kernels by a stochastic genetic algorithm. The Cohen’s class of time-frequency-transformation has been chosen as the Kernel for the SVM. An Evolutionary Algorithm has been used to optimize the parameters of the Kernels. The proposed classification method with optimized parameters is promising for classification of such non-stationary signals. Comparative simulation results demonstrate a significant improvement in the classification accuracy in case of these optimized Kernels. The important contribution of the paper is the optimization of the Kernels for the power system signal classification problem.
Shakir Ali,Amena Mahmood,Indusmita Routray,Tijjani Salihu Shinkafi,Kazim Sahin,Omer Kucuk 대한암예방학회 2014 Journal of cancer prevention Vol.19 No.4
Background:Dried flower bud of Syzygium aromaticum (clove) is rich in eugenol, an antioxidant and antiinflammatory compound thatcan protect liver against injury. Clove, besides eugenol, also contains other pharmacologically active phytochemicals such as β-sitosteroland ascorbic acid. This study reports the effect of eugenol-rich fraction (ERF) of clove on liver cirrhosis induced by thioacetamide. Methods:Cirrhosis of the liver, which predisposes to hepatocellular carcinoma, was induced by administering thioacetamide (0.03%)in drinking water for 16 weeks. Cirrhotic animals were divided into two groups; the treated group was administered ERF for 9 weeks,one week after discontinuation of thioacetamide, while the other group received normal saline for a similar duration of time. Results:The treatment with ERF, as determined by histopathology and through a battery of biochemical markers of hepatic injury, oxidativestress and drug metabolizing enzymes, significantly ameliorated the signs of liver cirrhosis. It lowered the elevated levels ofalkalinephosphatase, γ-glutamyl transferase and other biochemical changes in liver cirrhosis. Histopathology of the liver corroborated the effectof ERF with biochemical findings. ERF treatment further inhibited cell proliferation, as demonstrated by reduced [3H]-thymidine uptake. Conclusions:Data provide evidence supporting the protective action of ERF on liver cirrhosis. The study assumes significance becausecirrhosis predisposes the liver to cancer, which is characterized by abnormal cell proliferation. ERF in this study is reportedto inhibithepatic cell proliferation and at the same time decrease oxidative stress, which might be the mechanism of protection against liver cirrhosis.
Inner-Gate-Engineered GAA MOSFET to Enhance the Electrostatic Integrity
Biswajit Jena,Sidhartha Dash,Soumya Ranjan Routray,Guru Prasad Mishra 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2019 NANO Vol.14 No.10
Gate-all-around (GAA) MOSFETs are the best multi-gate MOSFET structure due to their strong electrostatic control over the channel. The electrostatic controllability can be enhanced further by applying some gate engineering technique to the existing GAA structure. This paper investigates the effect of inner gate (core gate) on the electrostatic performance of conventional GAA MOSFET. The inner gate engineering increases both the electrostatic control and packing density of GAA MOSFET. In this paper, we have presented an inner-gate-engineered (IGE) GAA MOSFET and inspected its advantages over conventional counterparts. The proposed structure exhibits higher I on/I off ratio, low threshold voltage and improved RF performances as compared to the conventional structure. Analytic simulation has been carried out for numerous figures of merit (FOMs) for different technology nodes.
Elvis Ngwa Ndonwi,Barbara Atogho-Tiedeu,Eric Lontchi-Yimagou,Tijjani S. Shinkafi,Dieudonne Nanfa,Eric V. Balti,Routray Indusmita,Amena Mahmood,Jean-Claude Katte,Armand Mbanya,Tandi Matsha,Jean Claude 한국독성학회 2019 Toxicological Research Vol.35 No.3
Pesticide exposure may induce biochemical alterations including oxidative stress and lipid peroxidation. However, in the context of developmental origin of health and disease, putative trans-generational effect of exposure to pesticides are insufficiently studied. We therefore aimed to evaluate the biochemical effect of gestational exposure to four pesticides on female Wistar rats and their offspring at adult age. We studied 30 female nulliparous Wistar rats divided into 5 equal groups. Group 1 served as the control group and received distilled water while group 2, 3, 4 and 5 received orally pesticide 1 (imidacloprid), pesticide 2 (chlorpyrifos), pesticide 3 (imidacloprid + lambda cyhalothrin) and pesticide 4 (oxamyl) respectively once daily throughout gestation at a dose equivalent to 1/10 lethal dose 50. The mothers were followed up until one month post gestation. The offspring were followed up from birth until adult age (12 weeks). In all animals at each time point we evaluated malondialdehyde (MDA), oxidative stress and liver function enzymes. There was similar variation of total body weight in all the groups during and after gestation. However, Female Wistar rats of the exposed groups had significant alterations in liver SOD (−30.8% to +64.1%), catalase (−38.8% to −85.7%) and GSH (−29.2% to −86.5%) and; kidney catalase (> 100%), GSH (> 100%). Moreover, MDA, alanine transaminase (ALT) and aspartate transaminase (AST) levels were significantly higher in pesticide exposed rats compared to the control group. Similar alterations in antioxidant enzymes, MDA and liver function enzymes were observed in offspring of treated rats evidenced at weaning and persisting until adult age. Exposure to pesticides causes oxidative stress and lipid peroxidation in exposed female Wistar rats and their offspring. The persistence in offspring at adult age suggests transgenerational adverse effects.
Ndonwi, Elvis Ngwa,Atogho-Tiedeu, Barbara,Lontchi-Yimagou, Eric,Shinkafi, Tijjani S.,Nanfa, Dieudonne,Balti, Eric V.,Indusmita, Routray,Mahmood, Amena,Katte, Jean-Claude,Mbanya, Armand,Matsha, Tandi,M Korean Society of ToxicologyKorea Environmental Mu 2019 Toxicological Research Vol.35 No.3
Pesticide exposure may induce biochemical alterations including oxidative stress and lipid peroxidation. However, in the context of developmental origin of health and disease, putative trans-generational effect of exposure to pesticides are insufficiently studied. We therefore aimed to evaluate the biochemical effect of gestational exposure to four pesticides on female Wistar rats and their offspring at adult age. We studied 30 female nulliparous Wistar rats divided into 5 equal groups. Group 1 served as the control group and received distilled water while group 2, 3, 4 and 5 received orally pesticide 1 (imidacloprid), pesticide 2 (chlorpyrifos), pesticide 3 (imidacloprid + lambda cyhalothrin) and pesticide 4 (oxamyl) respectively once daily throughout gestation at a dose equivalent to 1/10 lethal dose 50. The mothers were followed up until one month post gestation. The offspring were followed up from birth until adult age (12 weeks). In all animals at each time point we evaluated malondialdehyde (MDA), oxidative stress and liver function enzymes. There was similar variation of total body weight in all the groups during and after gestation. However, Female Wistar rats of the exposed groups had significant alterations in liver SOD (-30.8% to +64.1%), catalase (-38.8% to -85.7%) and GSH (-29.2% to -86.5%) and; kidney catalase (> 100%), GSH (> 100%). Moreover, MDA, alanine transaminase (ALT) and aspartate transaminase (AST) levels were significantly higher in pesticide exposed rats compared to the control group. Similar alterations in antioxidant enzymes, MDA and liver function enzymes were observed in offspring of treated rats evidenced at weaning and persisting until adult age. Exposure to pesticides causes oxidative stress and lipid peroxidation in exposed female Wistar rats and their offspring. The persistence in offspring at adult age suggests transgenerational adverse effects.
Integrated Kidney Exosome Analysis for the Detection of Kidney Transplant Rejection
Park, Jongmin,Lin, Hsing-Ying,Assaker, Jean Pierre,Jeong, Sangmoo,Huang, Chen-Han,Kurdi, Ahmed,Lee, Kyungheon,Fraser, Kyle,Min, Changwook,Eskandari, Siawosh,Routray, Sujit,Tannous, Bakhos,Abdi, Reza,R American Chemical Society 2017 ACS NANO Vol.11 No.11
<P>Kidney transplant patients require life-long surveillance to detect allograft rejection. Repeated biopsy, albeit the clinical gold standard, is an invasive procedure with the risk of complications and comparatively high cost. Conversely, serum creatinine or urinary proteins are noninvasive alternatives but are late markers with low specificity. We report a urine-based platform to detect kidney transplant rejection. Termed iKEA (integrated kidney exosome analysis), the approach detects extracellular vesicles (EVs) released by immune cells into urine; we reasoned that T cells, attacking kidney allografts, would shed EVs, which in turn can be used as a surrogate marker for inflammation. We optimized iKEA to detect T-cell-derived EVs and implemented a portable sensing system. When applied to clinical urine samples, iKEA revealed high level of CD3-positive EVs in kidney rejection patients and achieved high detection accuracy (91.1%). Fast, noninvasive, and cost-effective, iKEA could offer new opportunities in managing transplant recipients, perhaps even in a home setting.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/ancac3/2017/ancac3.2017.11.issue-11/acsnano.7b05083/production/images/medium/nn-2017-050832_0005.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/nn7b05083'>ACS Electronic Supporting Info</A></P>