City University of Hong Kong

Inferring network-level alarm influence pathways for cellular infrastructure reliability

Large-scale telecommunication infrastructure, such as Radio Access Networks (RANs), is a critical component of the modern digital industry. To ensure infrastructure intelligence and operational reliability, it is essential to understand how alarms influence one another across bas...

Testing Alphas in Linear Factor Models: A Portfolio Approach

This paper develops a test for evaluating linear factor models in high-dimensional settings. The proposed Maximum Random Sparse Portfolio (MRSP) test generates L random sparse portfolios, each obtained through K random draws, and then selects the hardest-to-price portfolio to ass...

Boosting water back-diffusion in dry-cathode AEMWE for high-current-density hydrogen production

Dry-cathode operation is considered an ideal operating mode for AEMWE. However, water management is challenging under such conditions. Previous numerical studies have primarily focused on both-fed configurations, while comprehensive multiphysics investigations of water transport...

Regulatory Whack-a-mole: A Rapid Scoping Review of Gambling Marketing Restrictions and their (in)Effectiveness

Abstract Purpose of Review Gambling marketing increases participation, spending, and harm. Marketing restrictions represent the best regulatory response. Decades of tobacco and alcohol marketing regulation demonstrate a recurring pattern in which each restriction triggers industr...

Charting critical transient gene interactions in disease progression across bulk, single-cell, and spatial transcriptomics

Critical transitions in gene regulatory networks presage abrupt disease shifts, yet existing tools rank signals unsupervised at gene/module level, use unweighted enrichments, and underuse multimodal data. We present CRISGI, which models interaction-level critical transition dynam...

Intrinsically Conductive Films of Ag2Te Nanocrystals for Broadband Infrared Photodetection beyond 2000 nm

Abstract We report a rapid, up-scalable synthesis in an aprotic solvent to obtain Ag2Te nanocrystals that are intrinsically capped with a short, conductive thiol ligand, making them suitable for optoelectronic applications. The simultaneous use of labile and stable tellurium prec...

Coupled Reconstruction of 2D Blood Flow and Vessel Geometry from Noisy Images via Physics-Informed Neural Networks and Quasi-conformal Mapping

Abstract. Blood flow imaging provides important information for hemodynamic behavior within the vascular system and plays an essential role in medical diagnosis and treatment planning. However, obtaining high-quality flow images remains a significant challenge. In this work, we a...

Surface mechanical attrition-induced hierarchical gradient nanostructuring enables ultrahigh strength and moderate ductility in Mg-Sn-Zn-Zr alloys

The engineering application of lightweight structural magnesium (Mg) alloys is usually impeded by the challenge of achieving high strength together with useful tensile ductility. In this study, rare-earth-free Mg-6Sn-3Zn-0.3Zr alloys with ultimate tensile strengths (UTS) of 385–4...

Energy, exergy and economic analysis of bioinspired wick solar desalination leaf

Freshwater scarcity and energy constraints have driven the development of low-carbon and efficient solar desalination technologies. To address the salt accumulation and thermal bridge heat loss commonly encountered in conventional wick solar stills, this study proposes a bioinspi...

Interfacial drag force model based on the drag coefficient approach for dispersed gas-liquid flows in rod bundles

TRAC-BF1/MOD1 is commonly employed for the safety analysis of the boiling water reactors (BWRs). TRAC-BF1/MOD1 uses the two-fluid model, requiring the interfacial drag force model in the phasic momentum equations. The interfacial drag force influences the prediction of the void f...

In Situ Electrochemical Reconstruction of PtCu Alloy to Pt Cluster/CuOOH Interface for Boosted 5‐Hydroxymethylfurfural Electro‐Oxidation

ABSTRACT Real‐time monitoring of structural evolution and identification of intrinsic active sites during electrocatalysis are vital to the rational design of high‐performance electrocatalysts. Herein, PtCu bimetallic alloy electrocatalyst is synthesized for the electrochemical 5...

Beyond co-ethnicity: dual cultural identity and network activation in immigrant entrepreneurship

The mixed embeddedness perspective has advanced understanding of immigrant entrepreneurship, yet it often treats embeddedness as structurally given, leaving unexplained why entrepreneurs within similar or shared opportunity structures achieve divergent market-positioning outcomes...

Dual‐Function Enhancement of PVDF Nanofibers via Bimetallic MOF for Wearable Pressure Sensor and AI‐Driven Non‐Invasive Blood Pressure Prediction

ABSTRACT Engineering high‐performance wearable piezoelectric sensors requires concurrent optimization of β‐phase crystallinity and conductive pathways, a persistent materials‐level challenge. Here, we introduce a novel two‐stage amplification strategy employing a Zn/Cu bimetallic...

Early transmission risks of Ebola disease outbreak caused by Bundibugyo virus in the Democratic Republic of the Congo

An outbreak of Ebola disease caused by Bundibugyo virus (BDBV) has been ongoing since April 2026, primarily in the Democratic Republic of the Congo. We estimated the initial reproduction number of BDBV at 1.85 (95% CrI: 1.09, 3.25), underscoring the urgent need for timely impleme...

The Core Concepts Express: Belgian Railways as a Teaching Case Connecting Policymaking, Governance, and Strategic Planning

Public affairs programs teach policymaking, governance, and strategic planning as core concepts, yet they are often taught in silos across separate courses. This separation, mostly reinforced by the legacy of the politics-administration dichotomy, leaves many learners able to def...

Meter-depth and multi-polarization addressable zoom 3D meta-holography

Propelled by rapid advances in nanofabrication, meta-holography has become a frontier hot spot in optics. 3D meta-holography, in particular the large depth and multi-polarization addressable ones, with extraordinary expansion of the control dimension and information capacity, off...

Two-layer scheduling and model predictive control of a multiphysics alkaline water electrolyzer with integrated energy storage under variable renewables

Alkaline water electrolysis (AWE) is a promising technology for large-scale renewable energy storage. However, with the increasing penetration of renewable energy sources (RESs), maintaining economic and safe operation under fluctuating power inputs remains challenging due to the...

Beyond deception: fighting scams in an age of digital inauthenticity

Scams are not isolated criminal events but the most damaging expressions of the “Age of Inauthenticity,” in which generative AI, synthetic media, and platformed deception have made fabricating identity, evidence, and trust trivially cheap. We argue that fighting scams requires mo...

Library strategies differentially shape microbial, functional, and host signals in clinical metagenomic sequencing

Metagenomic next-generation sequencing (mNGS) is increasingly used in infectious disease diagnostics, yet how library preparation shapes the microbial, functional, and host signals recovered from clinical samples remains poorly defined. Here, we performed a within-sample parallel...

Light during the rest phase disrupts hippocampal clock function and impairs object recognition memory

Light exposure in the circadian rest phase is common during shift work and late-night activity, but its effects on memory remain unclear. Using male C57BL/6J mice, we show 6-day rest-phase light exposure (RPL), which combines mistimed light exposure with enforced wakefulness, imp...