1,731,677 research outputs found
Dataset supporting the University of Southampton Doctoral Thesis "Mechanical Properties of Re-used Ballast"
No full textThis dataset comprises of 1. Images, 2. Spreadsheets, 3. Data in txt files and 4. Matlab codes used in the production of my (Akash Gupta) thesis. The title of the thesis is: Mechanical Properties of Re-used Ballast.</span
„Ich sehe diese Projekte nicht als mein Business an“: Interview mit GMB Akash
Full text linkDer Fotograf GMB Akash (geb. 1977) stammt aus Bangladesch und hat bereits für zahlreiche internationale Medien gearbeitet. Nach Todesdrohungen musste er vor einigen Monaten das Land vorläufig verlassen und lebt zurzeit in Hamburg, wo er kürzlich angefangen hat, Obdachlose zu fotografieren. Das Interview wurde am 21. Mai 2007 anlässlich eines Vortrags von GMB Akash als Veranstaltung der Fachschaft OrientAsia in Kooperation mit dem Südasienbüro durchgeführt
First person – Akash Gupta
No full textFirst Person is a series of interviews with the first authors of a selection of papers published in Biology Open, helping early-career researchers promote themselves alongside their papers. Akash Gupta is first author on ‘A novel and cost-effective ex vivo orthotopic model for the study of human breast cancer in mouse mammary gland organ culture’, published in BiO. Akash conducted the research described in this article while a PhD Scholar in Rajendra Mehta's lab at IIT Research Institute, Chicago, USA. He is now an assistant research scientist in the lab of Syreeta L. Tilghman at the University of Arizona, Department of Medicine, Tucson, USA, investigating drug efficacy modeling using human organoids culture for the treatment of cancers
akashkoppa/global-water-energy-closure: global water and energy balance closure
No full textContains data and scripts for reproducing the results of the research article titled
'Closing the Combined Water and Energy Balance of Global Watersheds from Earth Observations'
Authors: Akash Koppa1, Sarfaraz Alam1, Diego G. Miralles2, and Mekonnen Gebremichael1
1Department of Civil and Environmental Engineering, University of California, Los Angeles, CA, USA
2Hydro-Climate Extremes Lab (H-CEL), Ghent University, Coupure Links 653, 9000 Ghent, Belgium
Corresponding author: Akash Koppa ([email protected]
Weighted Quasi Akash Distribution::Properties and Applications
Full text linkThis paper proposes a three-parameter weighted quasi Akash distribution (WQAD) which includes two-parameter weighted Akash, quasi Akash and gamma distributions and one parameter Akash distribution as special cases. Its raw moments and central moments have been obtained. The moment based measures including coefficient of variation, skewness, kurtosis and index of dispersion have been discussed. The statistical properties including hazard rate function, mean residual life function and stochastic ordering have been explained. Maximum likelihood estimation has been discussed for estimating the parameters of the distribution. Finally, applications of the distribution have been explained with three examples of observed real lifetime datasets from engineering
Wrapped Akash Distribution
Full text linkIn this paper we rst obtain the probability densities functions of wrappedAkash distribution. Then, some other properties of the wrapped Akash dis-tribution are studied such as means, skewness, and kurtosis
Power Size Biased Two-Parameter Akash Distribution
No full textIn this paper, the two-parameter Akash distribution is generalized to size-biased two parameter Akash distribution (SBTPAD). A further modification to SBTPAD is introduced, creating the power size-biased two-parameter Akash distribution (PSBTPAD). Several statistical properties of PSBTPAD distribution are proved. These properties include the following: moments, coefficient of variation, coefficient of skewness, coefficient of kurtosis, the maximum likelihood estimation of the distribution parameters, and finally order statistics. Moreover, plots of the density and distribution functions of PSBTPAD are presented and a reliability analysis is considered. The Rényi entropy of PSBTPAD is proved and the application of real data is discussed
An Extension of Akash Distribution by Using Biweight Kernel function
Full text linkIn this paper, we introduce new continuous distribution called Biweight- Akash distribution. This distribution derived by using the Akash distribution and the Biweight kernel function. Several properties of Biweight-Akash dis- tribution are studied such as the reliability and hazard rate functions, the moments, Re‘nyi entropy. The maximum likelihood estimators of the un- known parameter is derived. A simulation study is introduced for different values of the parameter distribution. A comparison between the performance of the new distribution and well-known distributions using a real data sets are illustrated. The new distribution fits more than Exponential, Lindley and Akash distributions
Different methods of estimation for the one parameter Akash distribution
Full text linkAkash distribution is a mixture of an exponential distribution and a gamma distribution with certain mixing proportions. Although the maximum likelihood estimation method has been proposed for the Akash distribution, there is no comprehensive comparison of different methods of estimation in the literature. This study provides five different methods of estimation, such as maximum likelihood, least-squares, weighted least-squares, Anderson-Darling, and Crámer–von-Mises for Akash distribution. We consider a comprehensive Monte Carlo simulation study to compare the performances of these methods via the biases and mean-squared errors of these estimators. Also, a real data application is performed
Multi-radio interference diagnosis in unlicensed bands using passive monitoring
No full textThe increasing density and data rate of unlicensed band wireless devices has led to significant inter- and intra-radio interference problems. Multiple competing standards such as the IEEE 802.11b/g, Bluetooth and ZigBee, all of which operate in the 2.4 GHz ISM band, can interfere with each other when used in typical indoor environments, potentially causing significant performance degradation. This thesis aims to characterize different types of heterogeneous interference in the 2.4 GHz unlicensed band and develop techniques to diagnose interference related problems using passive monitoring. The first
part of the thesis presents detailed experimental results (using the ORBIT radio grid testbed) to quantify the effects of such interference in representative small office and home (SOHO) environment. In particular, different topologies, traffic loads and number
of interfering devices are emulated to show the impact of multi-radio interference and to characterize each kind of interference. The second part of the thesis describes
a cross-layer, multi-radio interference diagnosis framework (called “spectrum MRI”) which aims to classify and diagnose multi-radio interference problems using heuristic and model-based methods. Validation experiments show that broad auto-classification of multi-radio interference in terms of congestion, slow links, inter AP interference and
Bluetooth interference is possible using heuristic algorithms and passive monitoring.M.S.Includes bibliographical referencesby Akash Bai
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