document

Realizing quantum-safe information sharing: Implementation and adoption challenges and policy recommendations for quantum-safe transitions

Kong, I. (author), Janssen, M.F.W.H.A. (author), Bharosa, Nitesh (author)

By utilizing the properties of quantum mechanics, quantum computers have the potential to factor a key pair of a large prime number and break some of the core cryptographic primitives that most information infrastructures depend on. This means that today's widely used cryptographic algorithms can soon become unsafe and need to be modified...

journal article 2024

document

Optimum-pursuing method for constrained optimization and reliability-based design optimization problems using Kriging model

Meng, Zeng (author), Kong, Lin (author), Jiaxiang, Y. (author), Peng, Hao (author)

This paper proposes a new active learning method named as optimum-pursuing method (OPM) from the viewpoint of optimization theory, which aims to provide an effective tool for solving constrained optimization and reliability-based design optimization (RBDO) problems with low computation cost. It uses the cheap Kriging metamodel to replace the...

journal article 2024

document

Artificial intelligence combined with high-throughput calculations to improve the corrosion resistance of AlMgZn alloy

Ji, Y. (author), Fu, Xiaoqian (author), Ding, Feng (author), Xu, Yongtao (author), He, Yang (author), Ao, Min (author), Xiao, Fulai (author), Chen, Dihao (author), Dey, P. (author), Qin, Wentao (author), Xiao, Kui (author), Ren, Jingli (author), Kong, Decheng (author), Li, Xiaogang (author), Dong, Chaofang (author)

Efficiently designing lightweight alloys with combined high corrosion resistance and mechanical properties remains an enduring topic in materials engineering. Due to the inadequate accuracy of conventional stress-strain machine learning (ML) models caused by corrosion factors, a novel reinforcement self-learning ML algorithm combined with...

journal article 2024

document

Analyzing Dependencies among Challenges for Quantum-safe Transition

Kong, I. (author), Janssen, M.F.W.H.A. (author), Bharosa, Nitesh (author)

The quantum computing-based threats call for a critical information infrastructure to modify widely used cryptographic algorithms to ones that are quantum-safe (QS). Yet, little scholarly research has been undertaken to study QS transition, and the guidance to prepare for socio-technical predicaments of the transition falls short. To address the...

journal article 2023

document

A deep learning framework based on improved self-supervised learning for ground-penetrating radar tunnel lining inspection

Huang, Jian (author), Yang, Xi (author), Zhou, Feng (author), Li, Xiaofeng (author), Zhou, Bin (author), Lu, Song (author), Ivashov, Sergey (author), Giannakis, Iraklis (author), Kong, Fannian (author), Slob, E.C. (author)

It is not practical to obtain a large number of labeled data to train a supervised learning network in tunnel lining nondestructive testing with ground-penetrating radar (GPR). To decrease the dependence of supervised learning on the number of labeled data, an improved self-supervised learning algorithm—self-attention dense contrastive...

journal article 2023

document

A Novel High-temperature Pressure Sensor Based on Graphene Coated by Si3N4

Zeng, Simei (author), Tang, Chenggang (author), Hong, H. (author), Yuan, Fang (author), Li, Yuning (author), Wang, Yuqiang (author), Kong, Lingbing (author), Sun, Jingye (author), Zhu, Mingqiang (author), Deng, Tao (author)

The high-temperature pressure sensors have wide applications in aerospace, petroleum, geothermal exploration, automotive electronics, and other fields. However, the traditional silicon-based pressure sensors are restricted to pressure measurement under 120~{\circ }\text{C} and cannot be satisfied to measure the pressure of various gases or...

journal article 2023

document

Challenges in the Transition towards a Quantum-safe Government

Kong, I. (author), Janssen, M.F.W.H.A. (author), Bharosa, Nitesh (author)

The computation power of quantum computers introduces new security threats in Public Key Infrastructure (PKI), a system used by many governments to secure their digital public services and communication. This calls for an inevitable need for governments to be quantum-safe (QS) by modifying their PKI systems to be resistant to the attacks of...

conference paper 2022

document

The influencing factors of evaporation residue of emulsified modified asphalt to optimize the environmental adaptability

Lin, Yan (author), Qian, Chengduo (author), Shi, Jingtao (author), Zhang, Yuzhen (author), Ren, S. (author), Nan, Guozhi (author), Kong, Xiangjun (author), Fan, Weiyu (author)

Compared with traditional asphalt, emulsified asphalt occurs to be a better low-temperature usability and environmental adaptability, which can reduce environmental pollution and energy consuming during road construction. The low-temperature ductility is a very important indicator to evaluate the environmental adaptability of emulsified asphalt....

journal article 2022

document

Lightly strained germanium quantum wells with hole mobility exceeding one million

Lodari, M. (author), Kong, O. (author), Rendell, M. (author), Tosato, A. (author), Sammak, A. (author), Veldhorst, M. (author), Hamilton, A. R. (author), Scappucci, G. (author)

We demonstrate that a lightly strained germanium channel (ϵ / / = - 0.41 %) in an undoped Ge/Si0.1Ge0.9 heterostructure field effect transistor supports a two-dimensional (2D) hole gas with mobility in excess of 1 × 10 6 cm2/Vs and percolation density less than 5 × 10 10 cm-2. This low disorder 2D hole system shows tunable fractional quantum...

journal article 2022

document

Transitioning Towards Quantum-Safe Government: Examining Stages of Growth Models for Quantum-Safe Public Key Infrastructure Systems

Kong, I. (author)

Public Key Infrastructures (PKIs) provide digital public services and communication by securing information-sharing and strong credentials for digital identity management to individuals, businesses, and government agencies. While cryptographic algorithms that current PKI systems depend on are mostly resilient against hacks and other threats...

conference paper 2022

document

Prediction of gas leakage and dispersion in utility tunnels based on CFD-EnKF coupling model: A 3D full-scale application

Cai, Jitao (author), Wu, Jiansong (author), Yuan, S. (author), Kong, Desheng (author), Zhang, Xiaole (author)

Natural gas compartment accommodated in utility tunnels is beneficial in meeting the pressing demand of energy supply and sustainable urban environment. However, the leaking gas characterized by flammable and explosive can pose a huge threat to the safe operation of the utility tunnel. When an unexpected gas leakage accident happens in the...

journal article 2022

document

Fake It Till You Make It: Data Augmentation Using Generative Adversarial Networks for All the Crypto You Need on Small Devices

Mukhtar, Naila (author), Batina, Lejla (author), Picek, S. (author), Kong, Yinan (author)

Deep learning-based side-channel analysis performance heavily depends on the dataset size and the number of instances in each target class. Both small and imbalanced datasets might lead to unsuccessful side-channel attacks. The attack performance can be improved by generating traces synthetically from the obtained data instances instead of...

conference paper 2022

document

Transport Poverty in Chinese Cities: A Systematic Literature Review

Kong, Weichang (author), Pojani, Dorina (author), Sipe, Neil (author), Stead, D. (author)

The widening income gap in post-reform China has given rise to social inequality. Among those, transport poverty and inequality have significantly affected the daily life of low-income groups. While important, this is an under-researched topic in China. This gap in the academic literature is glaring given the country’s urbanization rates,...

review 2021

document

The effect of the standing angle on reducing fatigue among prolonged standing workers

Liu, Zhihui (author), Wang, Li (author), Kong, Fanlei (author), Huang, Xia (author), Tang, Zhi (author), He, Shi (author), Vink, P. (author)

BACKGROUND: Many occupations require workers to stand for prolonged periods, which can cause discomfort, pain and even injures. Some supermarkets in life provide a foot pad for checkout staff to let them stand on it at work, thereby reducing standing fatigue caused by standing for a long time. The inclined platform is the same as the foot pad...

journal article 2021

document

A New Divergence Method to Quantify Methane Emissions Using Observations of Sentinel-5P TROPOMI

Liu, Mengyao (author), van der A, Ronald (author), van Weele, Michiel (author), Eskes, Henk (author), Lu, Xiao (author), Veefkind, j. Pepijn (author), de Laat, Jos (author), Kong, Hao (author), Wang, Jingxu (author)

We present a new divergence method to estimated methane (CH₄) emissions from satellite observed mean mixing ratio of methane (XCH₄) by deriving the regional enhancement of XCH₄ in the Planetary Boundary Layer (PBL). The applicability is proven by comparing the estimated emissions with its known emission...

journal article 2021

document

Symbiotic System of Systems Design for Safe and Resilient Autonomous Robotics in Offshore Wind Farms

Mitchell, Daniel (author), Blanche, Jamie (author), Zaki, Osama (author), Roe, Joshua (author), Kong, Leo (author), Harper, Samuel (author), Robu, Valentin (author), Lim, Theodore (author), Flynn, David (author)

To reduce Operation and Maintenance (OM) expenditure on offshore wind farms, wherein 80% of the cost relates to deploying personnel, the offshore wind sector looks to advances in Robotics and Artificial Intelligence (RAI) for solutions. Barriers to residential Beyond Visual Line of Sight (BVLOS) autonomy as a service, include operational...

journal article 2021

document

Numerical analysis of multi-factors effects on the leakage and gas diffusion of gas drainage pipeline in underground coal mines

Cai, Jitao (author), Wu, Jiansong (author), Yuan, S. (author), Liu, Zhe (author), Kong, Desheng (author)

Gas drainage system is a critical technique to prevent gas outbursts in the underground coal mine. The leakage of gas drainage pipelines can pose serious threats to the safety production of underground mining. In this paper, a multi-factors gas drainage pipeline leakage and diffusion (GDPLD) model is proposed based on the OpenFOAM platform,...

journal article 2021

document

Corrected method for scaling the dynamic response of stiffened plate subjected to blast load

Kong, Xiangshao (author), Zhou, Hu (author), Kuang, Zheng (author), Zheng, Cheng (author), Li, X. (author), Wu, Weiguo (author), Guan, Zhongwei (author)

Test on a small scaled model is an effective approach to predict the dynamic response of full scale structure under blast loadings. However, the geometric dimensions of specimens cannot simply comply with complete geometrical similarity due to manufacture or test restrictions. It would result in the difference structural performance between...

journal article 2021

document

Impact of Chemically Treated Waste Rubber Tire Aggregates on Mechanical, Durability and Thermal Properties of Concrete

Khern, Yih Chen (author), Paul, Suvash Chandra (author), Kong, Sih Ying (author), Babafemi, Adewumi John (author), Anggraini, Vivi (author), Miah, Md Jihad (author), Šavija, B. (author)

Studies have shown that the incorporation of waste tire rubber aggregates reduces the strength, increases permeability and decrease thermal conductivity of concrete. However, only a few studies have investigated the effect of surface-modified rubber aggregates on the properties of concrete. This study investigates the effect of the surface...

journal article 2020

document

Effect of Recycled Iron Powder as Fine Aggregate on the Mechanical, Durability, and High Temperature Behavior of Mortars

Ali, Md Kawsar (author), Miah, Md Jihad (author), Paul, Suvash Chandra (author), Babafemi, Adewumi John (author), Kong, Sih Ying (author), Šavija, B. (author)

This study evaluates the mechanical, durability, and residual compressive strength (after being exposed to 20, 120, 250, 400 and 600 °C) of mortar that uses recycled iron powder (RIP) as a fine aggregate. Within this context, mechanical strength, shrinkage, durability, and residual strength tests were performed on mortar made with seven...

journal article 2020