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Recent Trends in Satellite-Derived Chlorophyll and Aerosol Optical Depth Together with Simulated Dimethylsulfide in the Eastern China Marginal Seas

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Journal of Ocean University of China 2022年第2期21卷 486-498页

作者： QU Bo GABRIC albert J. School of Science Nantong UniversityNantong 266000China School of Environment and Science Griffith UniversityBrisbaneQLDAustralia

The biogenic compound dimethylsulfide(DMS)produced by a range of marine biota is the major natural source of re-duced sulfur to the atmosphere and plays a major role in the formation and evolution of aerosols,potentially affecting *** spatio-temporal distribution of satellite-derived chlorophyll_a(CHL)and aerosol optical depth(AOD)for the recent years(2011-2019)in the Eastern China Marginal Seas(ECMS)(25°-40°N,120°-130°E)are *** seasonal CHL peaks occurred during late April and the CHL distribution displays a clear zonal *** CHL was also observed along the northern and western coastlines during summer and winter *** analysis shows that mean CHL decreases by about 10%over the 9-year study period,while AOD was higher in south and lower in north during summertime.A genetic algorithm technique is used to calibrate the key model parameters and simulations are carried out for 2015,a year when field data was *** simulation results show that DMS seawater concentration ranges from 1.56 to 5.88 nmol L^(−1) with a mean value of 2.76 nmol L^(−1).DMS sea-air flux ranges from 2.66 to 5.00mmol m^(−2) d^(−1) with mean of 3.80mmol m^(−2) d^(−1).Positive correlations of about 0.5 between CHL and AOD were found in the study region,with higher correlations along the coasts of Jiangsu and Zhejiang *** elevated CHL concentration along the west coast is correlated with increased sea-water concentrations of DMS in the *** results suggest a possible influ-ence of DMS-derived aerosol in the local ECMS atmosphere,especially along the western coastline of ECMS.

关键词： dimethylsulfide sea-to-air flux chlorophyll-a aerosol optical depth biogeochemical model Eastern China Marginal Seas

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Using genetic algorithms to calibrate a dimethylsulfide production model in the Arctic Ocean

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Chinese Journal of Oceanology and Limnology 2010年第3期28卷 573-582页

作者：瞿波 GABRIC J.albert Nantong University Griffith University

The global climate is intimately connected to changes in the polar oceans. The variability of sea ice coverage affects deep-water formations and large-scale thermohaline circulation patterns. The polar radiative budget is sensitive to sea-ice loss and consequent surface albedo changes. Aerosols and polar cloud microphysics are crucial players in the radioactive energy balance of the Arctic Ocean. The main biogenic source of sulfate aerosols to the atmosphere above remote seas is dimethylsulfide (DMS). Recent research suggests the flux of DMS to the Arctic atmosphere may change markedly under global warming. This paper describes climate data and DMS production (based on the five years from 1998 to 2002) in the region of the Barents Sea (30–35°E and 70–80°N). A DMS model is introduced together with an updated calibration method. A genetic algorithm is used to calibrate the chlorophyll-a (CHL) measurements (based on satellite SeaWiFS data) and DMS content (determined from cruise data collected in the Arctic). Significant interannual variation of the CHL amount leads to significant interannual variability in the observed and modeled production of DMS in the study region. Strong DMS production in 1998 could have been caused by a large amount of ice algae being released in the southern region. Forcings from a general circulation model (CSIRO Mk3) were applied to the calibrated DMS model to predict the zonal mean sea-to-air flux of DMS for contemporary and enhanced greenhouse conditions at 70–80°N. It was found that significantly decreasing ice coverage, increasing sea surface temperature and decreasing mixed-layer depth could lead to annual DMS flux increases of more than 100% by the time of equivalent CO2 tripling (the year 2080). This significant perturbation in the aerosol climate could have a large impact on the regional Arctic heat budget and consequences for global warming.

关键词： Arctic Ocean dimethyl sulfide mixed-layer depth chlorophyll-a dimethyl sulfoniopropionate

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Biophoton Emission as a Potential Measure of Organizational Order

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Science China Chemistry 1994年第9期37卷 1099-1112页

作者：顾樵 Popp Fritz-albert Also in Department of Physics Northwest University Xi'an 710069 PRC International Institute of Biophysics Technology Centre 67661 Kaiserslautern Germany

Beginning with the quantum theory of biophoton emission,a c-number equation character- izing the excited-state dynamics of a complex system of collective biomolecules in interaction with both the 'pumping'field and the biophoton field is presented,and then the order-growth process of the system in terms of both determinism and statistics is investigated.A general expression describing the order-growth dynamics of biological systems,which reduces in a limiting case to the well-known growth curve,is ob~ *** a Fokker-Planck equation for probability density function of an order parameter q of the system has been *** solution predicts that the system under consideration can evolute from an arbitrary initial state to a pure state characterized by the steady-state order parameter q_***,the evolution of the maximum entropy of the system is discussed,which shows that the system investigated is to keep an absolute maximum of entropy,and at the same time,to minimize its entropy value by reducing the uncertain- ty of the order ***,some agreements of the theoretical results with the corresponding experi- mental observations of order-growth process demonstrated by the biophoton emission are shown,which indi- cates that biophoton emission may serve as a potential measure of the organizational order.

关键词： biophoton emission complex system nonlinear dynamics organizational order maximum entropy

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The Finite-dimensional Decomposition Property in Non-Archimedean Banach Spaces

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Acta Mathematica Sinica,English Series 2014年第11期30卷 1833-1845页

作者： albert KUBZDELA Cristina PEREZ-GARCIA Institute of Civil Engineering Poznań University of TechnologyUl.Piotrowo 561-138 PoznańPoland Department of Mathematics Facultad de CienciasUniversidad de CantabriaAvda.de los Castros s/n39071SantanderSpain

A non-Archimedean Banach space has the orthogonal finite-dimensional decomposition property（OFDDP） if it is the orthogonal direct sum of a sequence of finite-dimensional *** property has an influence in the non-Archimedean Grothendieck＇s approximation theory,where an open problem is the following： Let E be a non-Archimedean Banach space of countable type with the OFDDP and let D be a closed subspace of *** D have the OFDDP？ In this paper we give a negative answer to this question; we construct a Banach space of countable type with the OFDDP having a one-codimensional subspace without the *** we prove that,however,for certain classes of Banach spaces of countable type,the OFDDP is preserved by taking finite-codimensional subspaces.

关键词： Non-Archimedean Banach spaces finite-dimensional decomposition property orthogonal base

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Comment on “Low-frequency sea level variation and its correlation with climate events in the Pacific”

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Chinese Science Bulletin 2013年第14期58卷 1708-1713页

作者： PARKER albert University of Ballarat

The tide gauge results exhibit strong multi-decadal oscillations with detected periodicities up to a quasi-60 years. This translates in the requirement of at least 60-70 years of continuously recorded data without any quality issue and the use of a procedure appropriate for time series with periodic components to infer the acceleration trend. This is not what is done in many recent papers where the oscillating behaviour is neglected and short or incomplete records arbitrarily extended or reconstructed are used to infer wrong accelerating trends. All the tide gauges of enough length and quality show the sea levels are oscillating with important multi-decadal periodicities but absolutely not positively accelerating. The satellite radar altimeter reconstruction of the global mean sea level only available since 1993 shows despite the many uncertainties of a still imperfect procedure a not positively accelerating behaviour. The presence of acceleration in the reconstructed or extended data sets and the lack of acceleration in all the individual tide gauge measurements of enough quality and length certainly deserve further discussion. This is a comment to a previously published original paper made on the basis of other previously published results and not a new original paper.

关键词：太平洋地区海平面变化气候事件低频率年代际振荡周期性振荡评论潮汐测量

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It takes two to tango: Unraveling a new post-translational modification involved in SnRK2.6 activation

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Molecular Plant 2021年第11期14卷 1779-1781页

作者： Miguel Daniel-Mozo Armando albert Instituto de Quimica Ffsica Rocasolano Consejo Superior de Investigaciones Cientificas(IQFR-CSIC)Calle Serrano 11928006 MadridSpain

Protein kinases are a conserved superfamily of proteins that play an essential role in signal transduction by attaching a phosphoryl group to serine,threonine,or tyrosine residues of a protein,hence converting them to *** process,which can be reversed by protein phosphatases,regulates vital cellular processes in plants,including metabolism,proliferation,and *** is also key to trigger response mechanisms to drought,increased salinity,and other abiotic stresses(Zhu,2016).

关键词： hence reversed translational

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Recent development and challenges in enhancing fire performance on wood and wood-based composites:A 10-year review from 2012 to 2021

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Journal of Bioresources and Bioproducts 2024年第1期9卷 27-42页

作者： Charles Michael albert Kang Chiang Liew Faculty of Tropical Forestry Universiti Malaysia SabahKota Kinabalu 88400Kota KinabaluSabah 88400Malaysia

Due to their durability,versatility,and aesthetic value,wood and wood-based composites are widely used as building *** fact that these materials are flammable,however,raises a major worry since they might cause fire hazards and significant loss of life and *** article investigates the variables that affect fire performance as well as the various fire-retardant treatments and their *** current developments and challenges in improving the fire performance of wood and wood-based composites treated with fire-retardant materials are summarized in this ***,organic chemicals,and densification are some recent developments in fire-retardant treatments that are also *** points from the review are summarized,along with potential areas for further research and development.

关键词： Fire performance Fire-retardant materials Wood Wood-based composite Nanoparticles coating Surface charring Bio-based fire retardant Densification

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Low power 3.1–10.6 GHz IR-UWB transmitter for Gbps wireless communications

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Science China(Information Sciences) 2011年第5期54卷 1094-1102页

作者： WANG albert ZHANG Gary Department of Electrical Engineering University of California Riverside 92521 USA Skyworks Solutions Inc. Irvine CA USA

This paper reviews and discusses the design of a low-power single-full-band (3.1-10.6 GHz) non- carrier impulse-radio ultra wideband (UWB) transmitter featuring 5th-order Gaussian derivative pulse shaping, integrated BPSK modulation, and 2.5 kV whole-chip ESD (electrostatic discharge) protection. The UWB transmitter design has been implemented in a commercial 0.18 μm CMOS technology with a very small die size of 0.25 mm2. The fabricated chips have demonstrated full functionality, extremely low power consumption of 0.14 pJ/p-mV, and an ultra short pulse width of 394 ps. This ESD-protected UWB transmitter has the potential to support wireless streaming to gigabit per second (Gbps).

关键词： UWB impulse radio BPSK transmitter ESD protection

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NFA:A neural factorization autoencoder based online telephony fraud detection

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Digital Communications and Networks 2024年第1期10卷 158-167页

作者： Abdul Wahid Mounira Msahli albert Bifet Gerard Memmi Department of Computer Sciences and Networks(INFRES) LTCITelecom ParisInstitut Polytechnique de ParisPalaiseau91120France Artificial Intelligence Institute The University of WaikatoPrivate Bag 31053240HamiltonNew Zealand

The proliferation of internet communication channels has increased telecom fraud,causing billions of euros in losses for customers and the industry each *** constantly find new ways to engage in illegal activity on the *** reduce these losses,a new fraud detection approach is *** fraud detection involves identifying a small number of fraudulent calls from a vast amount of call *** an effective strategy to combat fraud has become *** much effort has been made to detect fraud,most existing methods are designed for batch processing,not real-time *** solve this problem,we propose an online fraud detection model using a Neural Factorization Autoencoder(NFA),which analyzes customer calling patterns to detect fraudulent *** model employs Neural Factorization Machines(NFM)and an Autoencoder(AE)to model calling patterns and a memory module to adapt to changing customer *** evaluate our approach on a large dataset of real-world call detail records and compare it with several state-of-the-art *** results show that our approach outperforms the baselines,with an AUC of 91.06%,a TPR of 91.89%,an FPR of 14.76%,and an F1-score of 95.45%.These results demonstrate the effectiveness of our approach in detecting fraud in real-time and suggest that it can be a valuable tool for preventing fraud in telecommunications networks.

关键词： Telecom industry Streaming anomaly detection Fraud analysis Factorization machine Real-time system Security

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Skyrmions-based logic gates in one single nanotrack completely reconstructed via chirality barrier

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National Science Review 2022年第12期9卷 196-203页

作者： Dongxing Yu Hongxin Yang Mairbek Chshiev albert Fert Quantum Functional Materials Laboratory Ningbo Institute of Materials Technology and EngineeringChinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Université Grenoble Alpes CEA CNRS Institut Universitaire de France (IUF) UniversitéParis-Saclay Unité Mixte de Physique CNRS-Thales

Logic gates based on magnetic elements are promising candidates for logic-in-memory applications with non-volatile data retention,near-zero leakage and *** such spin-based logic devices,however,the multi-strip structure and fewer functions are obstacles to improving integration and reducing energy *** we propose a skyrmions-based single-nano track logic family including AND,OR,NOT,NAND,NOR,XOR and XNOR that can be implemented and reconstructed by building and switching the Dzyaloshinskii-Moriya interaction(DMI) chirality barrier on a racetrack *** the pinning effect of the DMI chirality barrier on skyrmions,the annihilation,fusion and shunting of two skyrmions with opposite chirality are also achieved and demonstrated via local reversal of the DMI,which are necessary for the design of an engineer programmable logic nanotrack,transistor and complementary racetrack memory.

关键词： skyrmion single-nanotrack logic gates spintronics DMI chirality barrier reconstruction of single device

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