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A TOPOLOGICAL ANALYSIS OF LARGE-SCALE STRUCTURE, STUDIED USING THE CMASS SAMPLE OF SDSS-III
Parihar, Prachi,Vogeley, Michael S.,Gott III, J. Richard,Choi, Yun-Young,Kim, Juhan,Kim, Sungsoo S.,Speare, Robert,Brownstein, Joel R.,Brinkmann, J. IOP Publishing 2014 The Astrophysical journal Vol.796 No.2
<P>We study the three-dimensional genus topology of large-scale structure using the northern region of the CMASS Data Release 10 (DR10) sample of the SDSS-III Baryon Oscillation Spectroscopic Survey. We select galaxies with redshift 0.452 < z < 0.625 and with a stellar mass M-stellar > 10(11.56) M-circle dot. We study the topology at two smoothing lengths: R-G = 21 h(-1) Mpc and R-G = 34 h(-1) Mpc. The genus topology studied at the R-G = 21 h(-1) Mpc scale results in the highest genus amplitude observed to date. The CMASS sample yields a genus curve that is characteristic of one produced by Gaussian random phase initial conditions. The data thus support the standard model of inflation where random quantum fluctuations in the early universe produced Gaussian random phase initial conditions. Modest deviations in the observed genus from random phase are as expected from shot noise effects and the nonlinear evolution of structure. We suggest the use of a fitting formula motivated by perturbation theory to characterize the shift and asymmetries in the observed genus curve with a single parameter. We construct 54 mock SDSS CMASS surveys along the past light cone from the Horizon Run 3 (HR3) N-body simulations, where gravitationally bound dark matter subhalos are identified as the sites of galaxy formation. We study the genus topology of the HR3 mock surveys with the same geometry and sampling density as the observational sample and find the observed genus topology to be consistent with ACDM as simulated by the HR3 mock samples. We conclude that the topology of the large-scale structure in the SDSS CMASS sample is consistent with cosmological models having primordial Gaussian density fluctuations growing in accordance with general relativity to form galaxies in massive dark matter halos.</P>
Fast and High-throughput Montgomery Modular Multiplier for RSA Encryption and Decryption
Aashish Parihar,Sangeeta Nakhate 대한전자공학회 2018 IEIE Transactions on Smart Processing & Computing Vol.7 No.2
This paper proposes a fast and high-throughput Montgomery modular multiplier that outputs a modular product in binary form. Intermediate operands are kept in carry-save form and added through a two-level, carry-save adder architecture. A carry look-ahead adder is also employed in this multiplier for operand pre-computation and converting the final output from carrysave form to binary form, which accounts for additional clock cycles. The proposed multiplier computes the next two quotients during the i<SUP>th</SUP> iteration to minimize critical path delay, and computes intermediate output for the (i + 2)<SUP>th</SUP> iteration while skipping the (і + 1)<SUP>th</SUP> iteration. In this way, the overall time required for multiplication is minimized significantly, and additional clock cycles required for operand pre-computation and format conversion can be ignored. Experimental results show that the proposed Montgomery modular multiplier can achieve significant speed and throughput improvement, compared to previous designs.
Groove Pancreatitis Masquerading as Pancreatic Carcinoma—Detected on 18F-FDG PET/CT
Ashwin Singh Parihar,Bhagwant Rai Mittal,Shelvin Kumar Vadi,Apurva Sood,Rajender Kumar,Usha Dutta 대한핵의학회 2018 핵의학 분자영상 Vol.52 No.6
Groove pancreatitis is a rare form of chronic pancreatitis that affects the groove area adjacent to the second part of the duodenum. Clinical and biochemical features often overlap with other subsets of chronic pancreatitis, while the imaging features resemblethat of carcinoma of the head of pancreas. We present a 38-year-old man with abdominal pain, nausea, vomiting, and loss ofweight who underwent 18F-FDG PET/CT to rule out a pancreatic malignancy. PET/CT imaging features of groove pancreatitisare distinct from the other subsets of chronic pancreatitis, such as alcoholic and autoimmune pancreatitis, and helpful in thediagnosis and planning further management of the patient.
18F-FDG PET/CT detects Metastatic Renal Cell Carcinoma Masquerading as Primary Breast Malignancy
Ashwin Singh Parihar,Bhagwant Rai Mittal,Shelvin Kumar Vadi,Rajender Kumar,Kaniyappan Nambiyar,Bishan Radotra,Lileswar Kaman 대한핵의학회 2018 핵의학 분자영상 Vol.52 No.6
We present the case of a 36-year-old woman who underwent 18F-FDG PET/CT with suspicion of a primary breast malignancy. However, PET/CT detected an occult renal cell carcinoma with metastases to the thyroid, breast, lungs and lymph nodes. Thyroidand breast metastases are atypical metastatic sites of renal cell carcinoma. Breast metastases from extra mammary tissue areextremely rare, more so from renal cell carcinoma. Histopathologic confirmation of the breast lesions is imperative to avoidunnecessary mastectomy and imaging can help in raising the suspicion of metastatic involvement versus primary breastmalignancy.
Quality control of Dalchini (Cinnamomum zeylanicum): a review
Arun K. S. Parihar,K. Kulshrestha Mayank,Umakant Sahu,K. S. Karbhal,S. R. Inchulkar,Kamal Shah,N. S. Chauhan 경희대학교 융합한의과학연구소 2023 Oriental Pharmacy and Experimental Medicine Vol.23 No.1
Dalchini bark (Cinnamomum zeylanicum) being a vast treasure of phytoconstitutents have a tremendous ethnomedicinal value. Dalchini (Cinnamomum zeylanicum) being a delicious spice with an impressive effects on health and metabolism. Cinnamon barks are available in the market in lot of varieties. So it’s difficult to identify and select dalchini adulterant by numerous substituent and exhausted drugs which are of fewer efficacies and have an harmful effects for human beings. Dalchini are adulterate with Cinnamon cassia, Cinnaniomon burmanii, Cinnaniomon loureirii with other spices and amurud (Psidium guajava, common guava, lemon guava) etc. The present chapter is an attempt to cater various techniques for the identified of the adulterants and substitutes to shot out deterioration of herb potential.
Anbazhagan, P.,Aditya, Parihar,Rashmi, H.N. Techno-Press 2011 Geomechanics & engineering Vol.3 No.3
Amplification based on empirical relations is widely used for seismic microzonation of urban centers. Amplifications are used to represent the site effects of a particular soil column. Many empirical correlations are available to estimate the amplification of seismic waves. These correlations are based on the ratio of shear wave velocity of foundation/rock to soil velocity or 30 m equivalent shear wave velocity ($Vs^{30}$) and are developed considering deep soil data. The aim of this work is to examine the applicability of available amplification relations in the literature for shallow engineering bedrock sites by carrying out site response studies. Shear wave velocity of thirteen sites having shallow engineering bedrock have been selected for the study. In these locations, the depth of engineering bedrock (> 760 ${\pm}$ 60 m/s) is matched with the drilled bore hole. Shear wave velocity (SWV) has been measured using Multichannel Analysis of Surface Wave survey. These sites are classified according to the National Earthquake Hazards Reduction Program (NEHRP) classification system. Amplifications for an earthquake are arrived for these sites using empirical relations and measured SWV data. Site response analysis has been carried out in SHAKE using SWV and using synthetic and real earthquake data. Amplification from site response analysis and empirical relations are compared. Study shows that the amplification arrived using empirical relations does not match with the site response amplification. Site response amplification is much more than empirical values for same shear wave velocity.
<tex> ${Z}^{\textsf {2}}$</tex> -FET as Capacitor-Less eDRAM Cell For High-Density Integration
Navarro, Carlos,Duan, Meng,Parihar, Mukta Singh,Adamu-Lema, Fikru,Coseman, Stefan,Lacord, Joris,Lee, Kyunghwa,Sampedro, Carlos,Cheng, Binjie,El Dirani, Hassan,Barbe, Jean-Charles,Fonteneau, Pascal,Kim Institute of Electrical and Electronics Engineers 2017 IEEE transactions on electron devices Vol.64 No.12
<P>2-D numerical simulations are used to demonstrate the <TEX>${Z}^{\textsf {2}}$</TEX>-FET as a competitive embedded capacitor-less dynamic random access memory cell for low-power applications. Experimental results in 28-nm fully depleted-silicon on insulator technology are used to validate the simulations prior to downscaling tests. Default scaling, without any structure optimization, and enhanced scaling scenarios are considered before comparing the bit cell area consumption and integration density with other eDRAM cells in the literature.</P>