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Non-symmetric differentially subordinate martingales and sharp weak-type bounds for Fourier multipliers

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Science China Mathematics 2024年第8期67卷 1807-1826页

作者： Meryem Akboudj Yong Jiao adam Osękowski School of Mathematics and Statistics Hunan Key Laboratory of Analytical Mathematics and ApplicationsCentral South UniversityChangsha 410075China Faculty of Mathematics Informatics and MechanicsUniversity of WarsawWarsaw 02-097Poland

Let p>2 be a given *** this paper,we prove,with the best constant,the weak-type(p,p)inequality■for a large class of non-symmetric Fourier multipliers T_(m) obtained via modulation of jumps of certain Lévy *** particular,the estimate holds for appropriate linear combinations of second-order Riesz transforms and skew versions of the Beurling-Ahlfors operator on the complex *** proof rests on a novel probabilistic bound for Hilbert-space-valued martingales satisfying a certain non-symmetric subordination *** applications to harmonic functions and Riesz systems on Euclidean domains are indicated.

关键词： weak-type bound Fourier multiplier martingale differential subordination laminate

Effective thermal conductivity estimation using a convolutional neural network and its application in topology optimization

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Energy and AI 2024年第1期15卷 236-247页

作者： Andre adam Huazhen Fang Xianglin Li Department of Mechanical Engineering University of Kansas1530 W 15th St.Lawrence66045KSUSA Department of Mechanical Engineering and Materials Science Washington University in St.LouisOne Brookings DriveSt.Louis63130MOUSA

Topology optimization of heterogeneous structures can find significant use in a wide range of applications,and its fabrication has been made possible by recent advances in additive ***,the optimization procedure is computationally expensive,as each structural update requires the re-evaluation of the *** computational time is the major limiting factor in large-scale and complex structural *** this study,a convolutional neural network(CNN)model for predicting effective thermal conductivity inspired by the VGG networks is *** using 130,000 unique binary images,the model achieves high predictive ***,it shows a mean absolute percent error(MAPE)of 0.35%in testing when the thermal conductivity of the solid is ten times larger than the fluid,and when the thermal conductivities assigned are that of aluminum and water,the MAPE is 2.35%.The prediction time is 15 ms for a single image with 128×128 pixels,which is 3 to 5 orders of magnitude faster than a finite volume *** employed in topology optimization,the CNN retains a MAPE between 0.67%and 11.8%for different *** CNN model correctly predicts trends in effective thermal conductivity and improves the structure to close proximity of a theoretical maximum in all cases.

关键词： Machine learning Effective thermal conductivity Convolutional neural network VGG Numerical heat transfer Topology optimization

The rate of deadwood decomposition processes in tree stand gaps resulting from bark beetle infestation spots in mountain forests

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Forest Ecosystems 2024年第3期11卷 339-346页

作者： Ewa Błonska adam Gorski Jarosław Lasota Department of Ecology and Silviculture Faculty of ForestryUniversity of Agriculture in Krakow29 Listopada 46 Str.31-425KrakowPoland

Decaying wood is an essential element of forest ecosystems and it affects its other *** aim of our research was to determine the decomposition rate of deadwood in various humidity and thermal conditions in the gaps formed in the montane forest *** research was carried out in the Babiog orski National *** research plots were marked out in the gaps of the stands,which were formed as a result of bark beetle *** plots were located in undisturbed *** research covered wood of two species–spruce and beech in the form of cubes with dimensions of 50 mm×50 mm×22 *** samples were placed directly on the soil surface and subjected to laboratory analysis after 36 months.A significant influence of the wood species and the study plot type on the physicochemical properties of the tested wood samples was *** characteristics strongly correlated with soil moisture.A significantly higher mass decline of wood samples was recorded on the reference study plots,which were characterized by more stable moisture *** decomposition of wood in the gaps regardless of the species is related to lower *** wood species covered by the study differed in the decomposition *** wood samples were characterized by a significantly higher decomposition rate compared to beech wood *** research has confirmed that disturbances that lead to the formation of gaps have a direct impact on the decomposition process of deadwood.

关键词： Bark beetle Beech Decomposition rate Forest ecosystem Mass decline Spruce Woody debris

多种族动脉粥样硬化和空气污染研究中预测多空气污染物浓度的统一时空建模方法

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环境与职业医学 2015年第9期32卷 866-866页

作者： Joshua P.Keller Casey Olives Sun-Young Kim Lianne Sheppard Paul D.Sampson adam a.szpiro Assaf P.Oron Johan Lindstr?m Sverre Vedal Joel D.Kaufman

[背景]在空气污染暴露与慢性健康影响之间关系的队列研究中,需要对很长一段时间的暴露进行预测。[目的]作为多种族动脉粥样硬化和空气污染研究(MESA Air)的一部分,我们利用从1999年至2012年初美国6个都市地区的数据,建立一种统一的建模... 详细信息

[背景]在空气污染暴露与慢性健康影响之间关系的队列研究中,需要对很长一段时间的暴露进行预测。[目的]作为多种族动脉粥样硬化和空气污染研究(MESA Air)的一部分,我们利用从1999年至2012年初美国6个都市地区的数据,建立一种统一的建模方法,以预测细颗粒物、二氧化氮、氮氧化物和黑碳(通过光吸收系数来测量)。[方法]获得调控网络的监测数据,并用MESA Air社区位置和参与者家中收集到的研究测量指标对这些数据进行补充。在每个区域,我们采用一种包括长期空间均值、带有空间变化系数的时间趋势以及时空残差的时空模型。模型的均值结构来自于一组地理协变量,使用偏最小二乘回归减小这组值。根据观测到的时间序列估计时间趋势,并用空间平滑方法来增加观察值间的强度。[结果]大部分模型的预测精度都较高,对监测点和固定位置来说,大部分地区和污染物的交叉验证R2(R2CV)>0.80。在家庭所在地,总R2CV范围为0.45至0.92,时间校正的R2CV范围为0.23到0.92。[结论]这一新颖的时空建模方法为多个区域的4种污染物提供了精确的预测值。我们得出了MESA Air研究特定参与者的预测值,以了解长期空气污染暴露对健康的影响。这些成果突显出这一先进的建模方法可以被更广泛地用于当代队列研究中。

关键词：动脉粥样硬化污染物浓度时空模型空气污染建模方法预测精度种族光吸收系数

Pioneering the direct large-scale laser printing of flexible“graphenic silicon”self-standing thin films as ultrahigh-performance lithium-ion battery anodes

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Carbon Energy 2024年第7期6卷 26-40页

作者： Avinash Kothuru adam Cohen Gil Daffan Yonatan Juhl Fernando Patolsky School of Chemistry Faculty of Exact SciencesTel Aviv UniversityTel AvivIsrael Department of Materials Science and Engineering The Iby and Aladar Fleischman Faculty of EngineeringTel Aviv UniversityTel AvivIsrael

Recent technological advancements,such as portable electronics and electric vehicles,have created a pressing need for more efficient energy storage ***-ion batteries(LIBs)have been the preferred choice for these applications,with graphite being the standard anode material due to its ***,graphite falls short of meeting the growing demand for higher energy density,possessing a theoretical capacity that lags *** address this,researchers are actively seeking alternative materials to replace graphite in commercial *** promising avenue involves lithiumalloying materials like silicon and phosphorus,which offer high theoretical ***-silicon composites have emerged as a viable option,showing improved capacity and performance over traditional graphite or pure silicon ***,the existing methods for synthesizing these composites remain complex,energy-intensive,and costly,preventing widespread adoption.A groundbreaking approach is presented here:the use of a laser writing strategy to rapidly transform common organic carbon precursors and silicon blends into efficient“graphenic silicon”composite thin *** films exhibit exceptional structural and energy storage *** resulting three-dimensional porous composite anodes showcase impressive attributes,including ultrahigh silicon content,remarkable cyclic stability(over 4500 cycles with∼40%retention),rapid charging rates(up to 10 A g^(-1)),substantial areal capacity(>5.1 mAh cm^(-2)),and excellent gravimetric capacity(>2400 mAh g^(-1) at 0.2 A g^(-1)).This strategy marks a significant step toward the scalable production of high-performance LIB *** widely available,cost-effective precursors,the laser-printed“graphenic silicon”composites demonstrate unparalleled performance,potentially streamlining anode production while maintaining exceptional *** innovation not only paves the way for advanced LIBs but also sets a precedent for

关键词： 4D printing energy storage fast-charging laser-induced graphene lithium-ion silicon carbon composite anodes

Community-led total sanitation(CLTS)implementation in West Mamprusi Municipal Assembly in *** do communities think eleven years on?

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Global Health Journal 2024年第2期8卷 67-73页

作者： Elijah adam Emmanuel Badu School of Media Creative and Social InquiryCurtin UniversityBentleyWestern AustraliaAustralia School of Population Health Curtin UniversityBentleyWestern AustraliaAustralia

Objective Access to improved sanitation is a fundamental human right and an important aspect of Public ***,an estimated thousands of people in Ghana especially,the West Mamprusi Municipal Assembly(WMMA)still have no access to adequate toilet *** has brought untold health repercussions to the inhabitants,the community,and the environment at *** address this menace,the community-led total sanitation(CLTS)was *** study aimed to assess communities’perspectives on the implementation of CLTS and to understand the factors influencing its success and *** A mixed-method approach involving sequential qualitative and quantitative methods was employed in this *** for the quantitative study were randomly selected and surveyed using *** qualitative study employed focus group discussion involving purposively sampled participants including assembly members,opinion leaders,and assembly *** The CLTS program in WMMA realized an apparent use of construction and proper use of household latrines leading to a reduction of open defecation free(ODF)and two communities achieving sanitized status in the history of the study area,enabling the training of latrine artisans and natural leaders to facilitate the CLTS expansion and sustainability,improved sanitation and hygiene,strengthened the enforcement of community rules and regulations and many *** The CLTS program has received more widespread acceptance in the study area than the previous government policy of constructing public toilets,which was greeted with massive failures due to poor *** ensure that gains achieved through CLTS implementation are sustained longer,it is recommended that chiefs and opinion leaders should be involved in the CLTS programs to ensure checks and *** entrenchment of bylaws and more education to address enduring myths and misconceptions will sustain the *** in the form

关键词： Community-led total sanitation(CLTS) Community development Ghana Sanitation

The Continental Scale USMTArray: Lessons Learned and Synergies with SinoProbe-Ⅱ

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Acta Geologica Sinica(English Edition) 2024年第S1期 51-52页

作者： adam SCHULTZ National Geoelectromagnetic Facility College of Earth Ocean and Atmospheric Sciences Oregon State University

The USMTArray was completed on June 27, 2024, comprising a network of 1779 transportable long-period magnetotelluric（MT） stations（Fig. 1） with nominal 70-km grid spacing spanning the conterminous United States, an area of 8.1 × 10～6 km2. Each station operated for weeksto-months, as required to meet data quality standards over the period band of 10–10000 s. The USMTArray shares similarities with the planned SinoProbe-II MT Array, with its 1-degree station spacing（～111 km in the latitudinal direction） spanning an area of 9.6 × 10～6 km2.

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‘Jelly to Joule’:Direct laser writing of sustainable jellyfish-based ‘graphenic silicon’ anodes for environmentally remediating high-performance lithium-ion batteries

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Journal of Energy Chemistry 2024年第10期97卷 553-565,I0012页

作者： Gil Daffan adam Cohen Yuval Sharaby Roman Nudelman Shachar Richter Fernando Patolsky Department of Materials Science and Engineering the Iby and Aladar Fleischman Faculty of EngineeringTel Aviv UniversityTel Aviv 69978Israel school of Chemistry Faculty of Exact SciencesTel Aviv UniversityTel Aviv 69978Israel

The ramifications of global climate change and resource scarcities have made it imperative to re-examine the definition of sustainable energy-storage *** is crucial to recognize that not all renewable resources are inherently sustainable,and their full impact on the environment must be *** the proliferation of invasive jellyfish species wreaking havoc on marine ecosystems and economies worldwide,utilizing overabundant jellyfish as a carbon source presents an opportunity to create energy-storage systems that are both financially beneficial and environmentally ***,a comprehensive approach to sustainability also requires eco-friendly solutions throughout the entire lifecycle,from material sourcing to battery production,without compromising highperformance ***,most electrode syntheses for lithium-ion batteries(LIBs) employed are energy-intensive,multiple-steps,complex,and *** response,this work pioneers the straightforward use of low-energy laser irradiation of a jellyfish biomass/silicon nanoparticle blend to encapsulate the silicon nanoparticles in-situ within the as-forming conductive carbonized matrix,creating sustainable and additive-free composite *** self-standing anode is directly synthesized under ambient conditions and requires no ***,a laser-synthesized conductive threedimensional porous carbon/silicon composite anode from raw jellyfish biomass for LIBs is presented,displaying outstanding cyclic stability(>1000 cycles),excellent capacity retention(>50% retention after1000 cycles),exceptional coulombic efficiency(>99%),superb reversible gravimetric capacity(>2000 mAh/g),and high rate performance capability(>1.6 A/g),paving a new path to future sustainable energy production.

关键词： Laser Silicon Carbon Jellyfish Sustainable Lithium Biomass

Strategic management and business ecosystem scientific relations——key areas review

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International Journal of Innovation Studies 2024年第3期8卷 287-296页

作者： adam Sulich Letycja Soloducho-Pelc Department of Advanced Research in Management Faculty of ManagementWroclaw University of Business and Economics118/120 Komandorska Str.53-345WroclawPoland Department of Strategic Management Faculty of ManagementWroclaw University of Economics118/120 Komandorska Str.53-345WroclawPoland

This study explores the interaction between the business ecosystem and strategic *** research is driven by the necessity of understanding how the principles of the business ecosystem influence organizational strategic management.A Systematic Literature Review was carried out,focusing on a detailed analysis of articles indexed in the Scopus academic *** research procedure aimed to uncover emerging perspectives on strategic management and the development of business *** findings reveal a substantial gap in research regarding business ecosystems and sustainable strategic *** paper suggests a new research agenda and proposes novel pathways for future investigations in this field.

关键词： Sustainability Strategic management Inter-organizational networks