23 papers · ranked by Valyu relevance
Shaohan Wei, Marco Piangerelli
Graph embedding has gained significant popularity due to its ability to represent large-scale graph data by mapping nodes to a low-dimensional space. However, most of the existing research in this field has focused on transductive learning, where fixed node embeddings are generated by training the entire graph. This…
Rafe Abdulali, Lauren E. Altman, David G. Grier
Holographic particle characterization uses quantitative analysis of holographic microscopy data to precisely and rapidly measure the diameter and refractive index of individual colloidal spheres in their native media. When this technique is applied to inhomogeneous or aspherical particles, the measured diameter and…
Hai-Han Sun, Yee Hui Lee, Chongyi Li, Lai Fern Ow + 2 more
'Mohamed Lokman Mohd Yusof' 'Abdulkadir C. Yücel'] Abstract— The horizontal orientation angle and vertical inclination angle of an elongated subsurface object are key parameters for object identification and imaging in ground penetrating radar (GPR) applications. Conventional methods can only extract the horizontal…
Miguel Riopedre-Fernandez, Bingxin Chu, Anna Kuffel, Arianna Marchioro + 2 more
Charged polymer interactions govern critical biological and technological processes by altering the structure and dynamics of the surrounding aqueous environment. How-ever, studying these interactions and the resulting environments across a broad concentration range is challenging, as it demands a combination of…
Wensheng Chang, Haihong Tao, Guangcai Sun, Yuqi Wang + 1 more
Considering the difficulty of pulse repetition frequency (PRF) design in multi-angle SAR when using ultra-high speed platforms, a multi-angle SAR imaging system in a unified coordinate system is proposed. The digital multi-beamforming is used in the system and multi-angle SAR data can be obtained in one flight.…
Stavros Vakalis, Jeffrey A. Nanzer
—A new method of angle estimation of multiple targets using a distributed interferometric antenna array and wideband space-time modulation is presented in this work. Interferometric array measurements of angle of arrival are generally ambiguous in the presence of one or more targets. We propose a new method of…
Emanuele Scalone, Luca Broggini, Cristina Visentin, Davide Erba + 6 more
Protein aggregation into amyloid fibrils is the archetype of aberrant biomolecular self-assembly processes, with more than 50 diseases associated that are mostly uncurable. Understanding aggregation mechanisms is thus of fundamental importance and goes in parallel with the characterization of the structures of the…
Yonatan Winetraub, Chris Wu, Steven Chu, Adam de la Zerda
Previous studies of angular compounding for speckle reduction in optical coherence tomography may not have fully accounted for optical aberrations, which produce unintended spatial averaging and concomitant loss of spatial resolution. We accounted for such aberrations by aligning our system and measuring distortions in…
Shan Zhao, Lei Zhu, Shiyang Shen, Heng Du + 4 more
'Xiaodong Wang' 'Michele Norgia'] Laser space networks are an important development direction for inter-satellite communication. Detecting the angle of arrival (AOA) of multiple satellites in a wide field of view (FOV) is the key to realize inter-satellite laser communication networking. The traditional AOA detection…
Ping Zhang, Wenjun Li, Hua Sun, Francesco Pappalardo
Secure aggregation is an essential component of modern distributed applications and data mining platforms. Aggregated statistical results are typically adopted in constructing a data cube for data analysis at multiple abstraction levels in data warehouse platforms. Generating different types of statistical results…
Xiheng Zhang, Yongkang Wong, Mohan S. Kankanhalli, Weidong Geng + 1 more
'Jie Zhang'] Sensor-based human activity recognition aims at detecting various physical activities performed by people with ubiquitous sensors. Different from existing deep learning-based method which mainly extracting black-box features from the raw sensor data, we propose a hierarchical multi-view aggregation network…
Minseok Kim, Masato Yomoda
—Angle-resolved channel sounding using antenna arrays or mechanically steered high-gain antennas is widely employed at millimeter-wave and terahertz bands. To extract antenna-independent large-scale channel parameters such as path loss, delay spread, and angular spread, the radiation-pattern effects embedded in the…
Alexander Felix, Silvio Mandelli, Marcus Henninger, Stephan ten Brink
'Stephan ten Brink'] Abstract—A key challenge in future 6G Integrated Sensing and Communications (ISAC) networks is to define the angular operations of transmitter and receiver, i.e., the sampling task of the angular domains, to acquire information about the environment. In this work we extend previous analysis for…
Caicheng Wang, Xue Li, Linshan Xue, Chengkai Tang + 2 more
Highlights We propose a high-accuracy wave-direction estimation framework that fuses interferometric phase-based angle measurements with energy-field reconstruction. We develop a multi-rate Kalman fusion strategy to improve robustness and precision over single-source methods, validated under varying SNR and…
Belinda Boehm, Christopher McNeill, David Huang
Understanding the solution-phase behaviour of organic semiconducting polymers is important for systematically improving the performance of devices based on solution-processed thin films of these molecules. Conventional polymer theory predicts that polymer conformations become more compact as solvent quality decreases…
Amol Tagad, Reman Kumar Singh, G. Naresh Patwari
Protein aggregation is a common and complex phenomenon in biological processes, yet a robust analysis of this aggregation process remains elusive. The commonly used methods such as center-of-mass to center-of-mass (COM–COM) distance, the radius of gyration (R_g_), hydrogen bonding (HB) and solvent accessible surface…
Justin J. Kwok, Kyung Sun Park, Bijal B. Patel, Rishat Dilmurat + 4 more
Donor-acceptor (D-A) conjugated polymers are high-performance organic electronic materials that exhibit complex aggregation behavior. Understanding the solution state conformation and aggregation of conjugated polymers is crucial for controlling morphology during thin-film deposition and the subsequent electronic…
Liangming Chen, Ming Cao, Chuanjiang Li
—Motivated by the challenging formation stabilization problem for mobile robotic teams when no distance or relative displacement measurements are available and each robot can only measure some of those angles formed by rays towards its neighbors, we develop the notion of "angle rigidity" for a multi-point framework…
Authors not listed
Small-angle X-ray/neutron scattering (SAXS/SANS) techniques provide valuable nanostructural information of self-assembling molecules. However, extracting the information from these experiments can be a challenging task, usually relying on predetermined assumptions. Conventional models for surfactant micelles consider a…
Nuno F. B. Oliveira, Filipe E. P. Rodrigues, João N. M. Vitorino, Patrícia F. N. Faísca + 1 more
Protein aggregation is a complex process that strongly depends on environmental conditions and has considerable structural heterogeneity, not only at the level of fibril structure but also at the level of molecular oligomerization. Since the first step in aggregation is the formation of a dimer, it is important to…
Bruno Stegani, Emanuele Scalone, Fran Bacic Toplek, Thomas Lohr + 4 more
The computational study of the binding of a ligand to a target protein provides mechanistic insight into the molecular determinants of this process and can improve the success rate of in silico drug design. All-atom molecular dynamics (MD) simulations can be used to evaluate the binding free energy, typically by…
Yuanqing Lu, Timur Fazletdinov, Zhiwen Pan, Katrin Wondraczek + 1 more
The synthesis of nanoscale particles and particle aggregates from liquid or gaseous precursors is affected by a variety of trade-off relations, for example, in terms of product composition, yield, or energy efficiency. Machine-supported process evaluation and learning (ML) of these relations enables optimization…
Mehrdad J. Gangeh, Robert P. W. Duin, Bart M. ter Haar Romeny, Mohamed S. Kamel
'Mohamed S. Kamel'] Textures often show multiscale properties and hence multiscale techniques are considered useful for texture analysis. Scale-space theory as a biologically motivated approach may be used to construct multiscale textures. In this paper various ways are studied to combine features on different scales…