Publications (33)
Large Language Models for Traffic and Transportation Research: Methodologies, State of the Art, and Future Opportunities
Yimo Yan, Yejia Liao, Guanhao Xu +13
The rapid rise of Large Language Models (LLMs) is transforming traffic and transportation research, with significant advancements emerging between the years 2023 and 2025 -- a peri…
Multi-Tier Adaptive Memory Programming and Cluster- and Job-based Relocation for Distributed On-demand Crowdshipping
Tanvir Ahamed, Bo Zou
With rapid e-commerce growth, on-demand urban delivery is having a high time especially for food, grocery, and retail, often requiring delivery in a very short amount of time after…
Physical origin of superconductivity in EuFe2As1.4P0.6 and EuFe2As2: pressure-induce valence change of europium
Liling Sun, Jing Guo, Genfu Chen +10
Superconductivity can be realized in Eu-containing pnictides by application of chemical (internal) and physical (external) pressure, the intrinsic physical mechanism of which attra…
Synthesis and Superconductivity in yttrium superhydrides under high pressure
Yingying Wang, Kui Wang, Yao Sun +6
The flourishing rare earth superhydrides are a class of recently discovered materials that possess near-room-temperature superconductivity at high pressures, opening a new era of s…
Emergence of Interlayer Coherence in Twist-Controlled Graphene Double Layers
Kenneth Lin, Nitin Prasad, G. William Burg +6
We report enhanced interlayer tunneling with reduced linewidth at zero interlayer bias in a twist-controlled double monolayer graphene heterostructure in the quantum Hall regime, w…
Modeling Household Online Shopping Demand in the U.S.: A Machine Learning Approach and Comparative Investigation between 2009 and 2017
Limon Barua, Bo Zou, Yan +2
Despite the rapid growth of online shopping and research interest in the relationship between online and in-store shopping, national-level modeling and investigation of the demand…
From Nucleobases to DNA: Clustering-Triggered Emission and Pressure-Induced Emission Enhancement
Yijing Cui, Yu Song Cai, Xuchen Wang +8
The photophysical properties of deoxyribonucleic acid (DNA) are fundamental to life sciences and biophotonics. While previous studies have generally been restricted to fluorescence…
Pressure-induced amorphization and polyamorphism in one-dimensional single crystal TiO2 nanomaterials
Quanjun Li, Bingbing Liu, Lin Wang +10
The structural phase transitions of single crystal TiO2-B nanoribbons were investigated in-situ at high-pressure using the synchrotron X-ray diffraction and the Raman scattering. O…
Reliable and Broad-range Layer Identification of Au-assisted Exfoliated Large Area MoS and WS Using Reflection Spectroscopic Fingerprints
Bo Zou, Yu Zhou, Yan Zhou +9
The emerging Au-assisted exfoliation technique provides a wealth of large-area and high-quality ultrathin two-dimensional (2D) materials compared with traditional tape-based exfoli…
Creative Quality Alignment: Expert Tacit Knowledge Transfer via Chain-of-Thought Fine-Tuning
Bo Zou, Chao Xu
This paper provides an empirical implementation of the creative quality metric proposed in Calibrated Surprise (Zou & Xu, 2026a). The question this paper addresses is: does this ma…
Electrical Control of Two-Dimensional Electron-Hole Fluids in the Quantum Hall Regime
Bo Zou, Yongxin Zeng, A. H. MacDonald +1
We study the influence of quantizing perpendicular magnetic fields on the ground state of a bilayer with electron and hole fluids separated by an opaque tunnel barrier. In the abse…
Competition between excitonic insulators and quantum Hall states in correlated electron-hole bilayers
Ruishi Qi, Qize Li, Zuocheng Zhang +11
Excitonic insulators represent a unique quantum phase of matter, providing a rich ground for studying exotic quantum bosonic states. Strongly coupled electron-hole bilayers, which…
How Fast You Can Actually Fly: A Comparative Investigation of Flight Airborne Time in China and the U.S
Ke Liu, Zhe Zheng, Bo Zou +1
Actual airborne time (AAT) is the time between wheels-off and wheels-on of a flight. Understanding the behavior of AAT is increasingly important given the ever growing demand for a…
BC Protocol: Structured Dual-Expert Dialogue for Eliciting High-Quality Chain-of-Thought Post-Training Data
Bo Zou, Chao Xu
High-quality expert chain-of-thought (CoT) data is one of the core bottlenecks in large language model (LLM) post-training. Existing data production methods each have structural li…
Transforming Acidic Corrosion and Embrittlement into a Hydrogen-Trapping Cage
Ankang Chen, Jiewen Liu, Zihao Huo +10
The vision of a hydrogen economy demands efficient platforms to close the gap between sustainable proton sources and solid-state hydrogen carriers. Metal hydrides serve as key carr…
Valley Order in Moiré Topological Insulators
Bo Zou, Anzhuoer Li, Allan H. MacDonald
Moiré materials with opposite non-zero miniband Chern numbers in time-reversal-partner valleys are two-dimensional topological insulators at band filling . We explore the po…
QUIET: A Multi-Blank Cascaded Story Cloze Benchmark for LLM Creative Generation Capability
Bo Zou, Chao Xu
Large language models (LLMs) face a dual challenge in creative capability evaluation: existing benchmarks (e.g., Story Cloze Test, HellaSwag) measure models' discriminative ability…
Pressure-induced reversible phase transition and amorphization of CHNHPbI
Kai Wang, Ran Liu, Yuancun Qiao +4
Recent advances of highly efficient solar cells based on organic-inorganic halide perovskites have triggered intense research efforts to establish the fundamental properties of the…
Vortex lattice states of bilayer electron-hole fluids in quantizing magnetic fields
Bo Zou, Allan H. MacDonald
We show that the ground state of a weakly charged two-dimensional electron-hole fluid in a strong magnetic field is a broken translation symmetry state with interpenetrating lattic…
Fleet Size and Spill for UAM Operation under Uncertain Demand
Shangqing Cao, Xuan Jiang, Emin Burak Onat +4
Variation and imbalance in demand poses significant challenges to Urban Air Mobility (UAM) operations, affecting strategic decisions such as fleet sizing. To study the implications…
Deep Reinforcement Learning for Crowdsourced Urban Delivery: System States Characterization, Heuristics-guided Action Choice, and Rule-Interposing Integration
Tanvir Ahamed, Bo Zou, Nahid Parvez Farazi +1
This paper investigates the problem of assigning shipping requests to ad hoc couriers in the context of crowdsourced urban delivery. The shipping requests are spatially distributed…
Teeth-SEG: An Efficient Instance Segmentation Framework for Orthodontic Treatment based on Anthropic Prior Knowledge
Bo Zou, Shaofeng Wang, Hao Liu +5
Teeth localization, segmentation, and labeling in 2D images have great potential in modern dentistry to enhance dental diagnostics, treatment planning, and population-based studies…
Deep Reinforcement Learning and Transportation Research: A Comprehensive Review
Nahid Parvez Farazi, Tanvir Ahamed, Limon Barua +1
Deep reinforcement learning (DRL) is an emerging methodology that is transforming the way many complicated transportation decision-making problems are tackled. Researchers have bee…
LLaMA-Excitor: General Instruction Tuning via Indirect Feature Interaction
Bo Zou, Chao Yang, Yu Qiao +2
Existing methods to fine-tune LLMs, like Adapter, Prefix-tuning, and LoRA, which introduce extra modules or additional input sequences to inject new skills or knowledge, may compro…
Ethylene glycol-mediated synthesis of nanoporous anatase TiO2 rods and rutile TiO2 self-assembly chrysanthemums
Quanjun Li, Bingbing Liu, Yingai Li +8
Nanoporous anatase TiO2 rods and rutile TiO2 chrysanthemums were successfully synthesized via a simple ethylene glycol-mediated synthesis route. Their morphologies, phase compositi…
Quantum oscillations in a dipolar excitonic insulator
Phuong X. Nguyen, Raghav Chaturvedi, Bo Zou +5
Quantum oscillations in magnetization or resistivity are a defining feature of metals subject to an external magnetic field. The phenomenon is generally not expected in insulators…
VideoDistill: Language-aware Vision Distillation for Video Question Answering
Bo Zou, Chao Yang, Yu Qiao +2
Significant advancements in video question answering (VideoQA) have been made thanks to thriving large image-language pretraining frameworks. Although these image-language models c…
Tuning the Interlayer Microstructure and Residual Stress of Buffer-Free Direct Bonding GaN/Si Heterostructures
Yan Zhou, Shi Zhou, Shun Wan +8
The direct integration of GaN with Si can boost great potential for low-cost, large-scale, and high-power device applications. However, it is still challengeable to directly grow G…
Calibrated Surprise: An Information-Theoretic Account of Creative Quality
Bo Zou, Chao Xu
In the era of large language models, creative writing quality lacks a computable theoretical anchor. The dominant approaches are rubric scoring -- decomposing holistic aesthetic ju…
REFLECTOR: Internalizing Step-wise Reflection against Indirect Jailbreak
Jiachen Ma, Jiawen Zhang, Xiangtian Li +3
While Large Language Models (LLMs) demonstrate remarkable capabilities, they remain susceptible to sophisticated, multi-step jailbreak attacks that circumvent conventional surface-…
Critical magnetic fields and electron-pairing in magic-angle twisted bilayer graphene
Wei Qin, Bo Zou, Allan H. MacDonald
The velocities of the quasiparticles that form Cooper pairs in a superconductor are revealed by the upper critical magnetic field. Here we use this property to assess superconducti…
Mechano-freezing of the ambient water
Xi Zhang, Tingting Yan, Bo Zou +1
Raman spectroscopy examination of the 25 deg-C water freezing under compression revealed transition from 1.35 GPa to 0.86 GPa upon ice being formed at continued volume change. The…
The study of high pressure structural stability of CeO2 nanoparticles
Bo Liu, Ran Liu, Quan-Jun Li +4
In situ high pressure XRD diffraction and Raman spectroscopy have been performed on 12 nm CeO2 nanoparticles. Surprisingly, under quasihydrostatic condition, 12 nm CeO2 nanoparticl…