User profiles for Ashok Das

Ashok Kumar Das

- Verified email at iiit.ac.in - Cited by 23830

Dr. Ashok Kumar Das

- Verified email at mits.ac.in - Cited by 1992

[BOOK][B] Integrable models

A Das - 1989 - books.google.com
The subject of integrable models both classical and quantum is fascinating. Decades of
research in this area has led to mathematical developments which are quite beautiful and which …

[BOOK][B] Field theory: a path integral approach

A Das - 2019 - books.google.com
This unique book describes quantum field theory completely within the context of path
integrals. With its utility in a variety of fields in physics, the subject matter is primarily developed …

[BOOK][B] Finite temperature field theory

A Das - 2023 - books.google.com
This book discusses all three formalisms used in the study of finite temperature field theory,
namely the imaginary time formalism, the closed time formalism and thermofield dynamics. In …

Prevalence of diabetes and prediabetes in 15 states of India: results from the ICMR–INDIAB population-based cross-sectional study

…, R Pradeepa, J Mahanta, K Narain, HK Das… - The lancet Diabetes & …, 2017 - thelancet.com
Background Previous studies have not adequately captured the heterogeneous nature of
the diabetes epidemic in India. The aim of the ongoing national Indian Council of Medical …

A dynamic password-based user authentication scheme for hierarchical wireless sensor networks

AK Das, P Sharma, S Chatterjee, JK Sing - Journal of Network and …, 2012 - Elsevier
Das's scheme is insecure against GW-node bypassing attack due to the following reason. In
ML Das's … Further, Khan and Alghathbar showed that ML Das's scheme is insecure against …

[BOOK][B] Lectures on quantum field theory

A Das - 2020 - books.google.com
This book comprises the lectures of a two-semester course on quantum field theory,
presented in a quite informal and personal manner. The course starts with relativistic one-particle …

Metabolic non-communicable disease health report of India: the ICMR-INDIAB national cross-sectional study (ICMR-INDIAB-17)

…, M Deepa, R Pradeepa, N Tandon, AK Das… - The Lancet Diabetes & …, 2023 - thelancet.com
Background Non-communicable disease (NCD) rates are rapidly increasing in India with
wide regional variations. We aimed to quantify the prevalence of metabolic NCDs in India and …

A secure and effective biometric‐based user authentication scheme for wireless sensor networks using smart card and fuzzy extractor

AK Das - International Journal of Communication Systems, 2017 - Wiley Online Library
User authentication is a prominent security requirement in wireless sensor networks (WSNs)
for accessing the real‐time data from the sensors directly by a legitimate user (external party…

A secure biometrics-based multi-server authentication protocol using smart cards

V Odelu, AK Das, A Goswami - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
Recently, in 2014, He and Wang proposed a robust and efficient multi-server authentication
scheme using biometrics-based smart card and elliptic curve cryptography (ECC). In this …

Reduced graphene oxide (RGO)-supported NiCo 2 O 4 nanoparticles: an electrocatalyst for methanol oxidation

AK Das, RK Layek, NH Kim, D Jung, JH Lee - Nanoscale, 2014 - pubs.rsc.org
The design and development of cheap, highly active, and durable non-platinum (Pt)-based
electrocatalysts for methanol electrooxidation is highly desirable, but is a challenging task. In …