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| 1 | Colloidal lead-free Cs_(2)AgBiBr_(6)double perovskite nanocrystals:Synthesis,uniform thin-film fabrication,and application in solution-processed solar cells显示文摘Recently developed lead-free double perovskite nanocrystals(NCs)have been proposed for the possible application in solutionprocessed optoelectronic devices.However,the optoelectronic applications of double perovskite NCs have been hampered due to the structural and chemical instability in the presence of polar molecules.Here,we report a facile strategy for the synthesis and purification of Cs_(2)AgBiBr_(6)double perovskite NCs that remained stable even after washing with polar solvent.This is realized with our efficient colloidal route to synthesize Cs_(2)AgBiBr_(6)NCs that involve stable and strongly coordinated precursor such as silvertrioctyl phosphine complex together with bismuth neodecanoate,which leads to a significantly improved chemical and colloidal stability.Using layer-by-layer solid-state ligand exchange technique,a compact and crack-free thin film of Cs_(2)AgBiBr_(6)NCs were fabricated.Finally,perovskite solar cells consisting of Cs_(2)AgBiBr_(6)as an absorber layer were fabricated and tested. | Razi Ahmad Gautam Virender Nutan Dinesh Singh Govind Gupta Udit Soni Sameer Sapra Ritu Srivastava | 2021 | Nano Research2021，14，4： | 2 |
| 2 | Bioactivity-guided chemical analysis of Melia azedarach L. (Meliaceae), displaying antidiabetic activity显示文摘 | Mohammad Faheem Khan Arun Kumar Rawat Bhawna Pawar Sudeep Gautam Arvind Kumar Srivastava Devendra Singh Negi | 2014 | Fitoterapia2014，，： | 1 |
| 3 | Evaluation of anti-ulcerogenic and ulcer-healing properties of Ocimum sanctum Linn.显示文摘 | Poonam Dharmani Vijay Kumar Kuchibhotla Rakesh Maurya Sudhir Srivastava Sharad Sharma Gautam Palit | 2004 | Journal of Ethnopharmacology2004，，2： | 1 |
| 4 | Comparative evaluation of esmolol and dexmedetomidine for attenuation of sympathomimetic response to laryngoscopy and intubation in neurosurgical patients显示文摘 | Srivastava VK Agrawal S Gautam SK | 2015 | J Anaesthesiol CIin Pharmacol2015，31，2： | 1 |
| 5 | Comparative evaluation of esmolol and dexmedetomidine for attenuation of sympathomimetic response to laryngoscopy and intubation in neurosurgical patients显示文摘 | Srivastava VK Agrawal S Gautam SK | 2015 | J Anaesthesiol Clin Pharmacol2015，31，2： | 1 |
| 6 | Characterization of avian strains of Pasteurella multocida by restriction endonuclease and amplified fragment length polymorphism显示文摘 | S.B. Shivachandra A.A. Kumar R. Gautam S. Joseph M.K. Saxena P. Chaudhuri S.K. Srivastava | 2005 | Research in Veterinary Science2005，，1： | 1 |
| 7 | Accurate threat hunting in industrial internet of things edge devices显示文摘Industrial Internet of Things(IIoT)systems depend on a growing number of edge devices such as sensors,controllers,and robots for data collection,transmission,storage,and processing.Any kind of malicious or abnormal function by each of these devices can jeopardize the security of the entire IIoT.Moreover,they can allow malicious software installed on end nodes to penetrate the network.This paper presents a parallel ensemble model for threat hunting based on anomalies in the behavior of IIoT edge devices.The proposed model is flexible enough to use several state-of-the-art classifiers as the basic learner and efficiently classifies multi-class anomalies using the Multi-class AdaBoost and majority voting.Experimental evaluations using a dataset consisting of multi-source normal records and multi-class anomalies demonstrate that our model outperforms existing approaches in terms of accuracy,F1 score,recall,and precision. | Abbas Yazdinejad Behrouz Zolfaghari Ali Dehghantanha Hadis Karimipour Gautam Srivastava Reza M.Parizi | 2023 | Digital Communications and Networks2023，9，5： | 0 |
| 8 | 3-Multi ranked encryption with enhanced security in cloud computing显示文摘Searchable Encryption(SE)enables data owners to search remotely stored ciphertexts selectively.A practical model that is closest to real life should be able to handle search queries with multiple keywords and multiple data owners/users,and even return the top-k most relevant search results when requested.We refer to a model that satisfies all of the conditions a 3-multi ranked search model.However,SE schemes that have been proposed to date use fully trusted trapdoor generation centers,and several methods assume a secure connection between the data users and a trapdoor generation center.That is,they assume the trapdoor generation center is the only entity that can learn the information regarding queried keywords,but it will never attempt to use it in any other manner than that requested,which is impractical in real life.In this study,to enhance the security,we propose a new 3-multi ranked SE scheme that satisfies all conditions without these security assumptions.The proposed scheme uses randomized keywords to protect the interested keywords of users from both outside adversaries and the honest-but-curious trapdoor generation center,thereby preventing attackers from determining whether two different queries include the same keyword.Moreover,we develop a method for managing multiple encrypted keywords from every data owner,each encrypted with a different key.Our evaluation demonstrates that,despite the trade-off overhead that results from the weaker security assumption,the proposed scheme achieves reasonable performance compared to extant schemes,which implies that our scheme is practical and closest to real life. | YeEun Kim Junggab Son Reza M.Parizi Gautam Srivastava Heekuck Oh | 2023 | Digital Communications and Networks2023，9，2： | 0 |
| 9 | Privacy‐preserving remote sensing images recognition based on limited visual cryptography显示文摘With the arrival of new data acquisition platforms derived from the Internet of Things(IoT),this paper goes beyond the understanding of traditional remote sensing technologies.Deep fusion of remote sensing and computer vision has hit the industrial world and makes it possible to apply Artificial intelligence to solve problems such as automatic extraction of information and image interpretation.However,due to the complex architecture of IoT and the lack of a unified security protection mechanism,devices in remote sensing are vulnerable to privacy leaks when sharing data.It is necessary to design a security scheme suitable for computation‐limited devices in IoT,since traditional encryption methods are based on computational complexity.Visual Cryptography(VC)is a threshold scheme for images that can be decoded directly by the human visual system when superimposing encrypted images.The stacking‐to‐see feature and simple Boolean decryption operation make VC an ideal solution for privacy‐preserving recognition for large‐scale remote sensing images in IoT.In this study,the secure and efficient transmission of high‐resolution remote sensing images by meaningful VC is achieved.By diffusing the error between the encryption block and the original block to adjacent blocks,the degradation of quality in recovery images is mitigated.By fine‐tuning the pre‐trained model from large‐scale datasets,we improve the recognition performance of small encryption datasets for remote sensing images.The experimental results show that the proposed lightweight privacy‐preserving recognition framework maintains high recognition performance while enhancing security. | Denghui Zhang Muhammad Shafiq Liguo Wang Gautam Srivastava Shoulin Yin | 2023 | CAAI Transactions on Intelligence Technology2023，8，4： | 0 |
| 10 | Special issue on machine learning-driven big data and blockchain techniques for communication显示文摘Guest Editorial Currently,the rapid development of storage technologies combined with some potential factors such as mobile networks,Internet of Things(IoT),cloud computing and the emergence of new technologies pose some problems for big data processing and blockchain security in the communication domain.Moreover,the complexity of network security and data processing has increased dramatically,making it more difficult and challenging to solve various problems in the communication domain.Therefore,Machine Learning(ML)algorithms have been proposed to process big data and enhance blockchain security and further enable intelligent analysis in the communication domain. | Shahid Mumtaz Gautam Srivastava Wei Wei | 2023 | Digital Communications and Networks2023，9，1： | 0 |
| 11 | An effective communication and computation model based on a hybridgraph-deeplearning approach for SIoT显示文摘Social Edge Service(SES)is an emerging mechanism in the Social Internet of Things(SIoT)orchestration for effective user-centric reliable communication and computation.The services are affected by active and/or passive attacks such as replay attacks,message tampering because of sharing the same spectrum,as well as inadequate trust measurement methods among intelligent devices(roadside units,mobile edge devices,servers)during computing and content-sharing.These issues lead to computation and communication overhead of servers and computation nodes.To address this issue,we propose the HybridgrAph-Deep-learning(HAD)approach in two stages for secure communication and computation.First,the Adaptive Trust Weight(ATW)model with relation-based feedback fusion analysis to estimate the fitness-priority of every node based on directed graph theory to detect malicious nodes and reduce computation and communication overhead.Second,a Quotient User-centric Coeval-Learning(QUCL)mechanism to formulate secure channel selection,and Nash equilibrium method for optimizing the communication to share data over edge devices.The simulation results confirm that our proposed approach has achieved effective communication and computation performance,and enhanced Social Edge Services(SES)reliability than state-of-the-art approaches. | M.S.Mekala Gautam Srivastava Ju H.Park Ho-Youl Jung | 2022 | Digital Communications and Networks2022，8，6： | 0 |
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