Article
Environmental Sciences
Xueliang Wang, Yanjie Zhang, John J. Clague, Songfeng Guo, Qisong Jiao, Junfei Wang, Juanjuan Sun, Wenxin Fang, Shengwen Qi
Summary: This study calculates the hillslope erosion rates in the Qilian Shan range, Tibet, using remote sensing and geochronological methods. The analysis focuses on sediment units derived from the weathered hillslopes at Qingyang Mountain, resulting in lower and upper bounding rates of 0.13 mm/yr to 0.21 mm/yr.
Article
Geosciences, Multidisciplinary
John R. Slosson, Gregory D. Hoke, Nathaniel Lifton
Summary: This study compares the C-14 and Be-10 concentrations in river sand collected at the outlets of five mountainous catchments in the Argentine Andes. The findings reveal that C-14 concentrations are lower than expected relative to Be-10, suggesting that sediment eroded from the high mountains has been shielded for at least 7-15 ky. The best explanation for this is the transient storage in dynamic talus slopes in the steep topography of the High Andes.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Engineering, Civil
Yunan Ding, Jun Kong, Jinming Zhang, Zhaoyang Luo, Chengji Shen, Chunhui Lu, Xiaosong Dong
Summary: The study proposed a modified Boussinesq equation applicable to double-layered hillslope aquifers, and found that the recession curves of double-layered hillslope aquifers also follow three power law regimes. However, the variations of b values are more complex than those of homogeneous hillslopes, depending on the soil configuration.
JOURNAL OF HYDROLOGY
(2021)
Article
Optics
A. Goffin, A. Tartaro, H. M. Milchberg
Summary: We present a quasi-continuously operating air waveguide created through high-repetition-rate patterned filamentation of femtosecond laser pulses. By exceeding the air thermal relaxation rate, we achieve near-continuous guiding of a CW probe beam with enhanced efficiency.
Article
Geosciences, Multidisciplinary
Alla Yu Yurova, Maria A. Smirnova, Nickolay Lozbenev, Pavel P. Fil, Daniil N. Kozlov
Summary: Mapping soil properties, especially water table depth, using expert knowledge can improve precision in crop and water management, providing a crucial first step for mapping in semiarid regions with shallow water tables.
Article
Nanoscience & Nanotechnology
Pingyuan Yan, Tao Li, Haoxiang Zhou, Shu Hu, Chenhong Xiang, Yang Zhang, Chengqiang Wang, Zihan Wu, Heng Li, Haibin Zhao, ChuanXiang Sheng
Summary: This study investigated four types of 2D layered perovskites and found that organic spacers have a significant impact on electron-phonon interaction, which has important implications for the rational design of future relevant devices.
Article
Engineering, Geological
Guo-yao Gao, Feng-xi Zhou, Xue Wang
Summary: Based on the theory of porous media, this study investigates the multifield coupling problem of heat-moisture-salt in unsaturated layered soil under steady conditions. By solving the state equations and nonlinear differential equations, the distribution of temperature, pressure, and salinity in unsaturated soil is obtained. The accuracy of the model is validated by comparing it with experimental results.
ENVIRONMENTAL GEOTECHNICS
(2022)
Article
Engineering, Environmental
Yunkang Rao, Huailin Chen, Tao Yang, Zhe Zhang, Honggang Wu
Summary: This study aimed to explore the positions of rear scarps in water weakening-triggered retrogressive shallow soil (RSS) landslides, and a theoretical method was proposed to calculate these positions. Five model tests were conducted to replicate rear scarps of the landslides and reveal their generation mechanisms. The results show that the new method effectively calculates the critical rear scarp with the global minimum factor of safety, and the calculated positions largely agree with the measured or published positions.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Haiyun Bi, Lin Shi, Dongli Zhang, Hui Peng, Jingjun Yang, Zicheng You, Xin Sun
Summary: This study used high-resolution LiDAR topography to investigate the paleoseismic activity of the Wulashan Piedmont Fault. By analyzing the morphology of fault scarps and detecting slope breaks, the researchers identified the number and slip of paleoearthquakes that occurred on the fault. The results were consistent with previous studies and indicated a high seismic hazard on the fault.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Physics, Fluids & Plasmas
Diego Frezzato
Summary: The study introduces inequalities linking the average rate of entropy production with the timing of site-to-site recurrences, providing upper bounds on the average rate of entropy production and inequalities for the relative precision of dynamical output. It also discusses the possible extension to overdamped Markov dynamics on continuous degrees of freedom, specifically exploring the one-dimensional diffusion in tilted periodic potentials and deriving an upper bound on average velocity based on entropy production rate and microscopic diffusion coefficient. The results correspond to the finite-time thermodynamic uncertainty relation in the limit of vanishingly small observation time.
Article
Engineering, Electrical & Electronic
Lichao Liu, Denys Grombacher, Matthew Griffiths, Mathias Vang, Jakob Juul Larsen
Summary: Surface nuclear magnetic resonance (NMR) is a unique technique to study groundwater, providing direct insights into water content and pore-scale properties. Steady-state sequences have been shown to enhance signal-to-noise ratio (S/N) in surface NMR, improving noise rejection. The signal processing chain for steady-state surface NMR data, including transient culling, pulse windowing, de-spiking, powerline harmonics subtraction, and spectral analysis, is developed and explained in detail in this article.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Physics, Multidisciplinary
A. Erpenbeck, E. Gull, G. Cohen
Summary: We propose a numerically exact method for nonequilibrium quantum impurity models, which directly formulates in the steady state, eliminating the need to traverse the transient dynamics and reducing computational costs. The method is benchmarked on quantum dots in the noninteracting and Kondo regime, as well as correlated materials driven away from equilibrium. Qualitative differences are observed in the response to bias voltage between correlated materials and bias-driven quantum dots.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Emma. H. Massasa, Rotem Strassberg, Reut Shechter, Shaked Dror, Sasha Khalfin, Saar Shaek, Maria Koifman Khristosov, Ido Hadar, Yehonadav Bekenstein
Summary: Layered 2D perovskites are solution-processed materials with tunable optoelectronic properties. The distance between inorganic layers and the composition of organic moieties can be modified to control the interactions between 2D-excitons. Colloidal synthesis is used to create single monolayer platelets, which can be assembled into stacked structures. The dynamic equilibrium between ligand mixtures and perovskite surfaces enables the optimal mixing of molecules and the engineering of interlayer distances. The incorporation of surfactants on colloidal surfaces allows for the modulation of optoelectronic properties.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Computer Science, Artificial Intelligence
Jie Zhong, Bowen Li, Yang Liu, Jianquan Lu, Weihua Gui
Summary: This article examines the steady-state design of large-dimensional Boolean networks via model reduction and pinning control, reducing computational complexity significantly. The proposed method is demonstrated on two specific networks, showing a substantial reduction in redundant states.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2021)
Article
Environmental Sciences
M. Ranjram, J. R. Craig
Summary: The subsurface flow contribution to a basin hydrograph is often conceptualized as a single reservoir, but this study suggests that basins may be better represented as multiple independent subsurface hillslope reservoirs. In this work, upscaling relationships are derived to convert simple metrics of basin hillslope topography into a signature basin response characterizing the subsurface flow-induced recession. The efficacy of the upscaled signature response in replicating numerical simulations and predicting transient recession is demonstrated.
WATER RESOURCES RESEARCH
(2022)
Article
Multidisciplinary Sciences
Simon L. Pendleton, Gifford H. Miller, Nathaniel Lifton, Scott J. Lehman, John Southon, Sarah E. Crump, Robert S. Anderson
NATURE COMMUNICATIONS
(2019)
Article
Geology
Rachel C. Glade, Charles M. Shobe, Robert S. Anderson, Gregory E. Tucker
Article
Geosciences, Multidisciplinary
Matthew W. Rossi, Robert S. Anderson, Suzanne P. Anderson, Gregory E. Tucker
GEOPHYSICAL RESEARCH LETTERS
(2020)
Article
Geosciences, Multidisciplinary
Katherine R. Barnhart, Gregory E. Tucker, Sandra G. Doty, Charles M. Shobe, Rachel C. Glade, Matthew W. Rossi, Mary C. Hill
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2020)
Article
Geosciences, Multidisciplinary
Katherine R. Barnhart, Gregory E. Tucker, Sandra G. Doty, Charles M. Shobe, Rachel C. Glade, Matthew W. Rossi, Mary C. Hill
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2020)
Article
Geosciences, Multidisciplinary
Katherine R. Barnhart, Gregory E. Tucker, Sandra G. Doty, Charles M. Shobe, Rachel C. Glade, Matthew W. Rossi, Mary C. Hill
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2020)
Article
Geography, Physical
William H. Armstrong, Robert S. Anderson
JOURNAL OF GLACIOLOGY
(2020)
Article
Geography, Physical
Sarah E. Crump, Nicolas E. Young, Gifford H. Miller, Simon L. Pendleton, Joseph P. Tulenko, Robert S. Anderson, Jason P. Briner
QUATERNARY SCIENCE REVIEWS
(2020)
Article
Geosciences, Multidisciplinary
Katherine R. Barnhart, Gregory E. Tucker, Sandra G. Doty, Rachel C. Glade, Charles M. Shobe, Matthew W. Rossi, Mary C. Hill
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2020)
Article
Geosciences, Multidisciplinary
A. A. Hurst, R. S. Anderson, J. P. Crimaldi
Summary: The researchers re-formulated the block entrainment problem and found that the pressure difference between upstream and downstream block faces had a significant impact on force and torque balances. This pressure difference scales with the block Reynolds number squared, and dramatically increases if the block protrudes above the plane of the upstream ledge, lowering the threshold for plucking.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2021)
Article
Multidisciplinary Sciences
Rachel C. Glade, Michael M. Fratkin, Mehdi Pouragha, Ali Seiphoori, Joel C. Rowland
Summary: Slow-moving arctic soils often organize into large-scale spatial patterns known as solifluction terraces and lobes. Mechanistic explanation for their formation has been lacking, but now research shows that soil cohesion and hydrostatic effects can lead to similar patterns. A large dataset from Norway supports theoretical predictions and reveals a newly observed climatic control on solifluction dynamics and patterns, providing insight into landscape dynamics.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Geosciences, Multidisciplinary
M. Rush, H. Rajaram, R. S. Anderson, S. P. Anderson
Summary: The seasonal evolution of ground thermal regime in cold regions has significant impacts on hydrologic flow paths, soil biogeochemistry, and hillslope geomorphology, especially in mountain environments. Coupling a thermo-hydrologic model with observational data reveals the strong aspect-controlled differences in soil temperature and snow depth, highlighting the significant insulating effects of snow on soil temperature.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2021)
Article
Geography, Physical
Leif S. Anderson, William H. Armstrong, Robert S. Anderson, Pascal Buri
Summary: The study quantified the melt across the debris-covered tongue of Kennicott Glacier, revealing that ice cliffs contribute 26% of total melt across the glacier tongue. Despite the significant importance of ice cliffs to area-average melt, the absolute area-averaged melt is dominated by debris.
Article
Geography, Physical
Kelly Kochanski, Robert S. Anderson, Gregory E. Tucker
Article
Geosciences, Multidisciplinary
Katherine R. Barnhart, Rachel C. Glade, Charles M. Shobe, Gregory E. Tucker
GEOSCIENTIFIC MODEL DEVELOPMENT
(2019)