486 research outputs found

    Energy Controlled Edge Formation for Graphene Nano Ribbons

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    On the basis of first principles calculations, we report energy estimated to cut a graphene sheet into nanoribbons of armchair and zigzag configurations. Our calculations show that the energy required to cut a graphene sheet into zigzag configuration is higher than that of armchair configuration by an order of 0.174 eV. Thus, a control over the threshold energy might be helpful in designing an experiment for cutting a graphene sheet into smooth edged armchair or zigzag configurations

    VL Index and bounds for the tensor products of F−Sum graphs

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    In QSAR/QSPR study, topological indices are exploited to a presumption of the bioactivity of chemical compounds. Inspired by the work of Zagreb indices, we propound here a new topological index, namely Veerabhadraiah Lokesha (V L(G)) index of a graph G. The V L(G) index shows a good correlation with the physical properties of octane isomers and polychlorinated biphenyl (PCB). In this article, the bounds on graph operations of the tensor product are studied.This study has been granted by the Department of Science & Technology, Women Scientist-A with the file no. SR/WOS-A/PM-43/2016.Publisher's Versio

    Pain and Hopelessness among Indian Farmers: An Analysis of Deepa Bhatia’s Nero’s Guests

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    Nero’s Guests (2009) is a documentary film directed by Deepa Bhatia on farmers’ suicide in India. It documents the suicide of farmers harvesting cotton crops. Sainath P, journey across villages in India, to investigate the motive behind farmers’ suicide. Sainath mentions the shortcomings of the Green Revolution — the use of HYV seeds, fertilizers, and pesticides results in higher costs of crop production and so the profit declines and debts escalate. This hopeless situation of the farmers prevail all over the country and force them to end their lives. The pain of farmers is incomprehensible due to debts, lack of water, rapid urbanization, and insurmountable pressure to run the family and farming despite losses. This paper focuses on David Klonsky and Alexis May’s Three- Step Theory (2015). The theory identifies four important factors such as pain, hopelessness, connection, and capability for suicide. This study aims to bring out the overlooked state of the farmers and the agrarian economy of India in the light of pain and hopelessness in David Klonsky and Alexis May's Three Step- Theory (2015)

    Power consumption prediction in cloud data center using machine learning

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    The flourishing development of the cloud computing paradigm provides several services in the industrial business world. Power consumption by cloud data centers is one of the crucial issues for service providers in the domain of cloud computing. Pursuant to the rapid technology enhancements in cloud environments and data centers augmentations, power utilization in data centers is expected to grow unabated. A diverse set of numerous connected devices, engaged with the ubiquitous cloud, results in unprecedented power utilization by the data centers, accompanied by increased carbon footprints. Nearly a million physical machines (PM) are running all over the data centers, along with (5 – 6) million virtual machines (VM). In the next five years, the power needs of this domain are expected to spiral up to 5% of global power production. The virtual machine power consumption reduction impacts the diminishing of the PM’s power, however further changing in power consumption of data center year by year, to aid the cloud vendors using prediction methods. The sudden fluctuation in power utilization will cause power outage in the cloud data centers. This paper aims to forecast the VM power consumption with the help of regressive predictive analysis, one of the Machine Learning (ML) techniques. The potency of this approach to make better predictions of future value, using Multi-layer Perceptron (MLP) regressor which provides 91% of accuracy during the prediction process

    Sum of Squares of ‘m’ Consecutive Woodall Numbers

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           في هذه الورقة سوف نناقش مجموع مربعات "م" أرقام وودال المتتالية. يتم إجراء هذه المناقشات من تعريف أرقام وودال. نتعلم أيضا قابلية مقارنة أرقام وودال والأرقام الخاصة الأخرى. كما نحاول هنا توصيل صيغة مجموع مربعات أرقام وودال "m" وشكل المصفوفة الخاصة بها. علاوة على ذلك ، نعبر عن بعض الارتباطات بين أرقام وودال والأرقام الخاصة الأخرى.        This paper discusses the Sums of Squares of “m” consecutive Woodall Numbers. These discussions are made from the definition of Woodall numbers. Also learn the comparability of Woodall numbers and other special numbers. An attempt to communicate the formula for the sums of squares of ‘m’ Woodall numbers and its matrix form are discussed. Further, this study expresses some more correlations between Woodall numbers and other special numbers

    Postpartum eclampsia: a clinical study

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    Background: Eclampsia, an enigmatic multisystem complication of pregnancy, is commonly defined as new onset of grand mal seizure activity and/or unexplained coma during pregnancy or postpartum. Eclampsia is associated with maternal deaths ranging from, 1.8% in developed to 14% in developing countries respectively. The worldwide incidence of delayed postpartum eclampsia is on an increasing trend, now at 16-18%, of all eclamptic seizures. Objective was to study the clinical findings and morbidity, associated with postpartum eclampsia and its correlation with neuroimaging- in our institute- SRIHER, Chennai.Methods: This is a retrospective study from a period of June 2016 to June 2021, in SRIHER, Chennai. Case records of all patients with postpartum eclampsia were analysed.Results: A total of 35 patients who satisfied the inclusion criteria were studied, out of which 55% of patients were diagnosed with hypertension or preeclampsia antenatally, and 45% presented as atypical eclampsia. In our institution, Postpartum eclampsia commonly occurred in the age group of 26-30 years of age (51.4%); was common after lower segment caesarean section (LSCS) (71.4%); most commonly occurred immediate postpartum (42.8%). Most common prodromal symptom was headache (77%), followed by blurring of vision (37%). Most common magnetic resonance imaging (MRI) finding was posterior reversible encephalopathy syndrome (PRES) (69%). 17% patients required intensive care unit (ICU) care. There was no mortality associated with postpartum eclampsia in the study period.Conclusions: This study emphasises that a high index of suspicion and a multidisciplinary approach effectively reduces mortality and morbidity associated with postpartum eclampsia. Neuroimaging is of robust help in the diagnosis and management of postpartum eclampsia.
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