Article
Limnology
Ivia Closset, Heather M. McNair, Mark A. Brzezinski, Jeffrey W. Krause, Kimberlee Thamatrakoln, Janice L. Jones
Summary: The California Current System experiences strong seasonal variations in water properties, circulation, and productivity, with a warm anomaly known as the Blob affecting upwelling dynamics and diatom production. The nutrient supply to the euphotic zone decreased by 50% during the Blob, but local production during individual upwelling events was minimally impacted. Persistent biological hotspots with high biomass, depleted nutrients, and high specific production rates were observed throughout the study period.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Oceanography
M. Chaniotaki, V Kolovoyiannis, E. Tragou, L. A. Herold, I. E. Batjakas, V Zervakis
Summary: Investigation into the response of the Aegean Sea to seasonal forcing by the Etesian winds reveals a previously hidden signal of increased chlorophyll-alpha concentration in response to intensified wind forcing, as well as a relationship between fish landings and upwelling events.
CONTINENTAL SHELF RESEARCH
(2021)
Article
Environmental Sciences
Alexander E. Yankovsky, Diane B. Fribance, Douglas Cahl, George Voulgaris
Summary: In this study, observations of the Winyah Bay plume were presented. The plume showed characteristics of turning upstream and forming a filament with minimal transverse spreading when the wind forcing persisted over a longer period. The plume was composed of tidal sub-plumes undergoing rotational adjustment and being transported offshore by Ekman dynamics. The study hypothesized that the supercritical regime constrained the transverse spreading of the plume.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Oceanography
A. Giddings, P. J. S. Franks, S. Baumann-Pickering
Summary: The California Current System (CCS) is a highly productive eastern boundary upwelling system, and cross-shore transport is driven by horizontal stirring from mesoscale features. The study reveals the close relationship between mesoscale stirring and seasonal upwelling in the CCS, as well as the predictability of annual and interannual variations. Furthermore, it confirms the positive correlation between chlorophyll a and horizontal stirring intensity.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Oceanography
Lisa Hancke, David Smeed, Mike Roberts, Cristina Russo, Darren Rayner, Fatma Jebri
Summary: This study describes the current and temperature structures on South Africa's central Agulhas Bank based on six months of moored observations and ancillary data. The intermittent mid-shelf upwelling ridge, associated with increased productivity, plays a crucial role in the shelf's thermal structure. The study highlights the importance of long-term in-situ monitoring for understanding ecosystem functioning on the highly dynamic Agulhas Bank.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2023)
Article
Geography, Physical
Chao Huang, Yin Yang, Fajin Chen, Deming Kong, Jin Xu, Chunqing Chen, Qingmei Zhu, Xin Huang
Summary: Coastal upwelling in the northern South China Sea, which controls marine productivity and influences blue economies, has centennial-scale variability that is synchronized with solar activity, latitudinal shifts of the Intertropical Convergence Zone (ITCZ), and El Nino-Southern Oscillation (ENSO) frequency. External solar forcing is the primary driver of the centennial-scale upwelling intensity, while internal feedback mechanisms such as latitudinal shifts of the ITCZ and ENSO variability amplify the solar variation signal. These findings highlight the importance of considering external forcing mechanisms when projecting future upwelling changes at low latitudes.
GLOBAL AND PLANETARY CHANGE
(2023)
Article
Environmental Sciences
Robert H. Weisberg, Yonggang Liu
Summary: This article reviews the evolution of knowledge about the forcing of the west Florida continental shelf and provides examples of how it affects ecological phenomena. The study shows that both local winds and deep-ocean influences impact the shelf and contribute to its large inter-annual variations in ecosystem. The research emphasizes the importance of interdisciplinary study in understanding these dynamics.
FRONTIERS IN MARINE SCIENCE
(2022)
Review
Oceanography
Marina Bolado-Penagos, Iria Sala, Juan Jesus Gomiz-Pascual, Carlos J. Gonzalez, Alfredo Izquierdo, Oscar Alvarez, Agueda Vazquez, Miguel Bruno, Hans van Haren
Summary: In this study, internal soliton signals recorded in the Strait of Gibraltar were analyzed to understand their eastward propagation and the impact of subinertial forcing. The assessment of soliton activity was carried out through in-situ data, numerical modelling, and an analytical approach. The arrival of solitons over the continental slope of the northwestern Alboran Sea showed fortnightly variability during spring tides, which can be attributed to the subinertial variability driven by atmospheric forcing.
PROGRESS IN OCEANOGRAPHY
(2023)
Article
Geosciences, Multidisciplinary
L. De Oliveira Junior, E. Garel, P. Relvas
Summary: The study examines the characteristics and drivers of Coastal Counter Currents (CCCs) along the South Portugal inner shelf, finding that these currents are primarily influenced by coastal upwelling processes and alongshore pressure gradients, rather than wind conditions. The results suggest a strong correlation between the equatorward flow magnitude before CCCs setup and the subsequent acceleration of CCCs near the bed, indicating the importance of an unbalance in the alongshore pressure gradient for the development of CCCs. Analysis of the depth-averaged momentum equation supports the conclusion that coastal circulation in the region is mainly driven by linear dynamics.
JOURNAL OF MARINE SYSTEMS
(2021)
Article
Environmental Sciences
Deoksu Kim, Jang-Geun Choi, Jinku Park, Jae-Il Kwon, Myeong-Hyeon Kim, Young-Heon Jo
Summary: This study aims to estimate the factors affecting upwelling processes using the Upwelling Age index. The findings reveal that wind-driven upwelling was dominant off the northern coast, while current-driven upwelling prevailed off the southern coast. These results shed light on the influence of physical forces on ocean ecosystems.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Oscar E. Romero, Simon Ramondenc
Summary: This study assesses the variations of diatom community in the Mauritanian coastal upwelling system over a continuous period of 17 years. The results show that diatom flux is highest in spring and summer, and different types of diatom populations vary with atmospheric and hydrologic conditions.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Clinical Neurology
Gernot Surges, Joachim Paulus, Theresa Blass, Kerstin Mendryscha, Martin Bettag, Anand Rotte
Summary: Through a single-center retrospective study, it was found that 10kHz cervical or combined cervical and thoracic lead placement for SCS can provide effective and durable pain relief in patients with chronic neuropathic pain, with efficacy and safety comparable to lower thoracic SCS, and can be applied to complex multiarea pain presentations.
Article
Environmental Sciences
Alexander Osadchiev, Olga Konovalova, Alexandra Gordey
Summary: The Gulf of Ob is heavily influenced by river discharge and wind forcing during ice-free seasons, with gravitational circulation dominating over tidal forcing. Remote wind forcing plays a significant role in enhancing estuarine-sea water exchange, affecting the influx of saline water and ultimately impacting the phytoplankton communities in the gulf.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Geography, Physical
Zhenzi Wu, Yating Li, Xiao Xu, Hui Fan
Summary: A novel postprocessing approach was proposed to quantify the impact of topographic effects on forest disturbance detection. The study demonstrated that 10.43% of the detected disturbances were induced by topography. Removing topography-induced disturbances improved the accuracy of the forest disturbance map.
GISCIENCE & REMOTE SENSING
(2023)
Article
Oceanography
Nicholas Trautman, Ryan K. Walter
Summary: This study used conditional averaging technique to investigate upwelling- and downwelling-driven circulation in a small coastal embayment in Central California. The results revealed that the upwelling circulation strengthened a convergent upwelling shadow front at this site, with important ecological ramifications.
CONTINENTAL SHELF RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Weijie Chen, Dong Li, Xu Chen, Haiyang Chen, Shuo Liu, Haidi Yang, Xinqi Li, Yunxiu Shen, Xuemei Ou, Yang (Michael) Yang, Lin Jiang, Yaowen Li, Yongfang Li
Summary: Constructing monolithic two-terminal tandem solar cells using complementary properties of various photoactive layers, and improving charge recombination efficiency through surface reconstruction of all-inorganic perovskite, resulted in high power conversion efficiency and enhanced stability.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Weiqing Chen, Min Zhou, Yang Liu, Xue Yu, Chaojie Pi, Ze Yang, Hao Zhang, Zhichao Liu, Ting Wang, Jianbei Qiu, Siu Fung Yu, Yang (Michael) Yang, Xuhui Xu
Summary: A novel perovskite polymer-ceramics scintillator with high transparency and quality is designed for flexible and refreshable X-ray imaging, achieved through a nucleation inhibition strategy. This scintillator-based detector boasts a high detection limit and spatial resolution, overcoming the long operation lifetime issue of perovskites-based scintillators.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Juan Hui, Peng Ran, Yirong Su, Lurong Yang, Xuehui Xu, Tianyu Liu, Yang Michael Yang
Summary: Lead-free copper halide scintillators have great potential in X-ray detection and imaging, but their imaging resolution is limited due to the lack of a scintillation waveguide. This study presents a solution synthesis route for Cs3Cu2I5 nanowire arrays with high spatial resolution, providing a convenient and facile method for high-resolution X-ray imaging.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Optics
Tianyu Liu, Chenying Yang, Zhuping Fan, Xu Chen, Zeng Chen, Yirong Su, Hanbo Zhu, Fangling Sun, Tingming Jiang, Wenjuan Zhu, Weidong Shen, Jianjun He, Haiming Zhu, Xu Liu, Yang (Michael) Yang
Summary: This study presents the design and fabrication of a new type of metal-dielectric microcavity PeLED, which exhibits a narrow spectrum and enhanced forward emission directionality. This has significant implications for expanding the color space in display applications and other related device designs.
LASER & PHOTONICS REVIEWS
(2022)
Article
Optics
Siyuan Huang, Yongpin Chen, Yang (Michael) Yang, Wei E. Sha
Summary: In this study, a new figure of merit is proposed to accurately describe the light emission process by simultaneously using direction-dependent Purcell factor and transmittance coefficient.
Article
Materials Science, Multidisciplinary
Kaiyu Xia, Peng Ran, Wenwen Wang, Jiewen Yu, Gaopeng Xu, Kun Wang, Xiaodong Pi, Qingquan He, Yang (Michael) Yang, Jun Pan
Summary: In this study, large-area flexible scintillation screen films with good mechanical stability and homogeneity were successfully prepared. The photoluminescence quantum yield of the film exceeded 85%, and it exhibited excellent scintillation performance for X-ray imaging applications.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Siyuan Huang, Chun-Hsiao Kuan, Yue Tian, Xu Chen, Zeng Chen, Cheng-Hung Hou, Xuehui Xu, Xiangyang Tang, Jing-Jong Shyue, Haiming Zhu, Tingming Jiang, Yang (Michael) Yang
Summary: This study utilizes a small amount of 2D perovskite to regulate the crystallization process of 3D tin-lead alloyed perovskite, resulting in high quality film with lower non-radiative recombination and better stability. The achieved champion efficiency of 14.6% sets a new record for inorganic tin-lead perovskite solar cells.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Physical
Peng Jin, Yingjie Tang, Xuehui Xu, Peng Ran, Yan Wang, Yue Tian, Yong Huang, Bowen Zhu, Yang (Michael) Yang
Summary: A novel hybrid X-ray detector device structure was designed, in which lead halide perovskite mainly acted as an X-ray sensitizer to activate the conduction channel of indium oxide (In2O3). The actual electrical signal was conducted and collected in a lateral metal-oxide device, resulting in improved performance compared to traditional detectors.
Article
Nanoscience & Nanotechnology
Yan Wang, Xinyao Shan, Yingjie Tang, Tianyu Liu, Binghan Li, Peng Jin, Kun Liang, Dingwei Li, Yang Michael Yang, Huaibin Shen, Bowen Zhu, Botao Ji
Summary: Developing advanced patterning techniques for colloidal nanocrystals is crucial for high-performance electronic/optoelectronic devices. The researchers have developed a direct method to pattern functional nanocrystals without the need for complicated photolithography processes or photosensitive molecules. The obtained patterns allow for postpatterning ligand exchange, enabling the fabrication of thin-film transistors and light-emitting diodes with enhanced performances.
ACS APPLIED NANO MATERIALS
(2022)
Article
Physics, Applied
Biao Li, Xuehui Xu, Yuxin Yao, Pengjie Hang, Chenxia Kan, Ying Wang, Yiqiang Zhang, Yang (Michael) Yang, Deren Yang, Xuegong Yu
Summary: This study investigates the influence of the dipole moment of A-site ions on the migration of iodine ions in perovskite films. It finds that a decrease in the dipole moment of A-site ions leads to a decrease in the activation energy of iodine ions. Therefore, increasing the dipole moment of A-site ions can be an effective strategy for suppressing iodine migration in perovskite films and enhancing the long-term stability of PSCs.
APPLIED PHYSICS LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Yubin Li, Yujie Wu, Jie Tang, Ping Zhu, Zhiqiu Gao, Yuanjian Yang
Summary: This study evaluates the uncertainties of turbulent flux calculation using eddy covariance (EC) and wavelet analysis (WA) methods. The results show that the Mexhat-wavelet method has high accuracy in calculating turbulent fluxes under non-stationary conditions.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Shiwei Yu, Zhizhao Liu, Yuanjian Yang
Summary: The concentration of precipitable water vapor (PWV) in tropical cyclones (TCs) has shown a sensitive response to global warming, with a north-leaning (south-leaning) property over the western North Pacific (WNP) (western South Pacific (WSP)) regions. The expansion of the TC-concentrated PWV area and the decrease in its spatial gradient over the WNP (WSP) from 2008 to 2020 indicate the impact of global warming on TC behavior and increased flood risk. PWV is an important indicator of TC responses to global warming.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Optics
Peng Ran, Xinya Chen, Zeng Chen, Yirong Su, Juan Hui, Lurong Yang, Tianyu Liu, Xiangyang Tang, Haiming Zhu, Xiao-Jian She, Yang (Michael) Yang
Summary: Copper-based halides have shown promise as scintillator materials for X-ray imaging. CsCu2I3 exhibits perfect spectral compatibility and fast decay properties, making it suitable for CT X-ray imaging and allowing for non-planar imaging.
LASER & PHOTONICS REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
Dianxing Ju, Ming Zhou, Pen Ran, Huifang Li, Yang Michael Yang, Tingming Jiang
Summary: This study designed novel Cu(I) halides with lower melting points and improved moldability. The investigation also demonstrated the reversal of aging and luminescence-quenching phenomena through controlled heat treatment. The resulting crystals exhibited broadband emission and high photoluminescence quantum yields. The melt processability of these materials makes them suitable for various practical applications, especially in X-ray imaging.
ACS MATERIALS LETTERS
(2023)
Article
Optics
Ma Wenbo, Kuang Cuifang, Liu Xu, Yang Yang
Summary: Halide perovskite and perovskite-like materials have shown great potential in X-ray detection and imaging due to their excellent performance. This review summarizes the fundamental principles, advances, and future prospects of X-ray detection and imaging based on novel metal halide semiconductors and scintillators.
ACTA OPTICA SINICA
(2022)
