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Fluidization and Transport of Vibrated Granular Matter:A Review of Landmark and Recent Contributions

Fluid Dynamics & Materials Processing 2024年第1期20卷 1-29页

作者： Peter Watson Sebastien Vincent Bonnieu Marcello Lappa department of Mechanical and Aerospace Engineering University of StrathclydeGlasgowUK european Space Agency European Space Research and Technology CentreNoordwijkNetherland

We present a short retrospective review of the existing literature about the dynamics of(dry)granular matter under the effect of *** main objective is the development of an integrated resource where vital information about past findings and recent discoveries is provided in a single *** attention is paid to those works where successful synthetic routes to as-yet unknown phenomena were *** landmark results are analyzed,while smoothly blending them with a history of the field and introducing possible categorizations of the prevalent *** no classification is perfect,and it is hard to distillate general properties out of specific observations or realizations,two possible ways to interpret the existing results are defined according to the type of forcing or the emerging(ensuing)regime of *** particular,first results concerning the case where vibrations and gravity are concurrent(vertical shaking)are examined,then the companion situation with vibrations perpendicular to gravity(horizontal shaking)is *** classes are introduced as follows:(1)Regimes where sand self-organizes leading to highly regular geometrical“pulsating”patterns(thin layer case);(2)Regimes where the material undergoes“fluidization”and develops an internal multicellular convective state(tick layers case);(3)Regimes where the free interface separating the sand from the overlying gas changes inclination or develops a kind a patterned configuration consisting of stable valleys and mountains or travelling waves;(4)Regimes where segregation is produced,i.e.,particles of a given size tend to be separated from the other grains(deep containers).Where possible,an analogy or parallelism is drawn with respect to the companion field of fluid-dynamics for which the assumption of“continuum”can be applied.

关键词： Granular materials vibrations fluidization flowability symmetry breaking

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Three-Channel Interference Interpretation of Fano Profile

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Chinese Physics Letters 2024年第5期41卷 30-34页

作者：李波李天钧马子茹王希源黄新朝朱林繁 department of Modern Physics University of Science and Technology of ChinaHefei 230026China european XFEL Holzkoppel 422869 SchenefeldGermany

Fano resonance is a ubiquitous phenomenon, and it is commonly interpreted as a two-channel interference of the discrete and continuous channels. The present work investigates the Fano profile from a perspective of the temporal evolution of the wave function. By exciting the atom with a δ pulse and calculating the evolution of the wave function, the Fano formula is deduced. The results clearly show that the Fano resonance is of a three-channel interference, which is different from the traditional understanding. The three channels are revealed as the groundcontinuum, ground-discrete-continuum, and a previously unmentioned third channel, i.e., ground-continuumdiscrete-continuum. The present three-channel interpretation can be easily generalized to other physical systems,contributing to a deeper understanding of the Fano profile.

关键词： function profile continuum

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Chrononutrition in traditional european medicine-Ideal meal timing for cardiometabolic health promotion

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Journal of Integrative Medicine 2024年第2期22卷 115-125页

作者： Nora Selena Eberli Ludivine Colas Anne Gimalac department of Traditional european Medicine Navi Institute of Research in Integrative HealthEcole Professionnelle Superieure de NaturopathieCentre Andre Henzelin1066 EpalingesSwitzerland

Meal timing plays a crucial role for cardiometabolic health,given the circadian regulation of cardiometabolic ***,to the best of our knowledge,no concept of meal timing exists in traditional european medicine(TEM).Therefore,in this narrative review,we aim to define the optimal time slot for energy intake and optimal energy distribution throughout the day in a context of TEM and explore further *** reviewing literature published between 2002 and 2022,we found that optimal timing for energy intake may be between 06:00 and 09:00,12:00 and 14:00,and between 15:00 and18:00,with high energy breakfast,medium energy lunch and low energy dinner and possibly further adjustments according to one’s chronotype and ***,timing and distribution of energy intake may serve as a novel therapeutic strategy to optimize coction,a concept describing digestion and metabolism in TEM.

关键词： Circadian rhythm Chrononutrition Naturopathy Traditional european medicine Metabolic syndrome Meal timing

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欧盟对非洲政策再调整的地缘政治转向

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China International studies 2024年第1期 49-78页

作者：金玲 the department for european studies China Institute of International studies(CIIS)

The great-power rivalry,the once-in-a-century pandemic and the Ukraine crisis have profoundly altered the EU’s worldview,and the EU’s Africa policy has experienced a reorientation in this context,which refocuses on long-term strategic goals and serves its geopolitical shift in great-power *** EU wishes to move beyond the“donor-recipient”relationship and forge a reciprocal,equal,and balanced partnership with Africa,but the geopolitical shift in its strategy for Africa under the Cold War mentality is at odds with the goal,with deep-seated contradictions exposed in the process of policy reorientation.

关键词：地缘政治 policy 对非洲政策

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全球网络空间治理:核心问题、中国方案与未来方向

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China International studies 2024年第2期 142-176页

作者：徐龙第 department for european studies China Institute of International Studies(CIIS)

Countries around the world generally recognize the strategic value of *** and communications technology(ICT)has become one of the key elements in the economic development,national security and comprehensive strength of *** has also become a key battleground of major-power *** has always attached great importance to developing and governing the cyberspace since it was connected to the internet nearly 30 years *** country also recognizes the international importance of cyberspace governance,particularly focusing on its increasingly unbalanced development,inadequate rules and inequitable order,and is committed to addressing the deficit of global cyberspace governance.

关键词： space internet attached

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全球网络空间治理：核心问题、中国方案与未来方向（英文）

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China International studies 2024年第2期 142-176+3页

作者：徐龙第 the department for european studies China Institute of International Studies (CIIS)

The strategic value of cyberspace has been recognized by countries around the world. China has made a series of policy proposals to build and reform the global cyberspace governance system. The Chinese propositions do not intend to address a single problem but attempt to resolve multi-level and multi-dimensional issues. With a pragmatic and dialectical approach, and systematic and scientific methods, China will stay in tune with the times and contribute new ideas, wisdom, and solutions to global cyberspace governance.

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欧盟对非洲政策再调整的地缘政治转向（英文）

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China International studies 2024年第1期 49-78+2页

作者：金玲 the department for european studies China Institute of International studies (CIIS)

The great-power rivalry, the once-in-a-century pandemic and the Ukraine crisis have profoundly altered the EU’s worldview, and the EU’s Africa policy has experienced a reorientation in this context, which refocuses on long-term strategic goals and serves its geopolitical shift in great-power competition. The EU wishes to move beyond the “donor-recipient” relationship and forge a reciprocal, equal, and balanced partnership with Africa, but the geopolitical shift in its strategy for Africa under the Cold War mentality is at odds with the goal, with deep-seated contradictions exposed in the process of policy reorientation.

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A new approach to pedestal differentiation for soil loss estimation-a case study from a burnt area in north-central Portugal

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Journal of Forestry Research 2024年第3期35卷 45-54页

作者： Frank G.A.Verheijen Martinho A.S.Martins Sergio A.Prats Jan J.Keizer Centre for Environmental and Marine studies(CESAM) Department Environment and PlanningUniversity of Aveiro3810-193 AveiroPortugal Mediterranean Institute for Agriculture Environment and Development(MED-CHANGE)Institute for Advanced Studies and ResearchUniversity of EvoraPolo da MitraAp.947006-554 EvoraPortugal GeoBiociencias Geotecnologias E Geoengenharias(GEOBIOTEC)Department Environment and PlanningUniversity of Aveiro3810-193 AveiroPortugal

Soil pedestals have long been used as qualitative indicators of soil splash *** rangelands,plant-capped pedestals,generally grass tussocks,have also been used to quantitatively estimate soil loss since the first half of the twentieth *** agricultural lands,forests,and bad-lands,stone-capped pedestals have been used as qualitative and semi-quantitative indicators of active,'extreme'*** work has been reported on using capstone pedestal data for quantifying soil *** postulate that three distinct capstone pedestal types may be present in any given location and that a detailed analysis of a pedestal height histogram may be used to recognize their *** analysis can subsequently inform if soil loss can be reliably estimated and if so,which of the existing methods using pedestal height data will provide more accurate *** three proposed capstone pedestal types are:(1)neo-pedestals formed underneath surface stones exposed by(partial)removal of the soil surface cover;(2)endo-pedestals formed underneath stones that were buried in the soil but have been exposed by erosion;and(3)phoenix-pedestals formed underneath stones from collapsed *** the pedestal height histogram of any given location,a skew to smaller heights may indicate the existence of endo-and/or phoenix-pedestals,which may be revealed as a bi-(or tri)modal distribution when using a smaller bin *** concept was applied to a case study where soil loss had been monitored for control plots and mulched plots during a 5-year period following wildfire in a eucalypt *** measured pedestal heights and used methods to quantitatively assess soil loss from soil pedestal data in the available *** pedestal data at the end of the 5-year period under or overestimated soil loss in the control treatment,with results ranging from 60 to 115%of measured soil loss,depending on the *** is postulated that phoenix-and endo-pedestals may be a driving fact

关键词： Soil pedestals Mulch Wildfire Soil erosion Char

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Towards trustworthy multi-modal motion prediction:Holistic evaluation and interpretability of outputs

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CAAI Transactions on Intelligence Technology 2024年第3期9卷 557-572页

作者： Sandra Carrasco Limeros Sylwia Majchrowska Joakim Johnander Christoffer Petersson MiguelÁngel Sotelo David Fernández Llorca Computer Engineering department Polytechnic SchoolUniversity of AlcalaMadridSpain AI Sweden GothenburgSweden Zenseact AB GothenburgSweden department of Electrical Engineering Linköping UniversityLinköpingSweden Chalmers University of Technology GothenburgSweden european Commission Joint Research CentreSevilleSpain

Predicting the motion of other road agents enables autonomous vehicles to perform safe and efficient path *** task is very complex,as the behaviour of road agents depends on many factors and the number of possible future trajectories can be consid-erable(multi-modal).Most prior approaches proposed to address multi-modal motion prediction are based on complex machine learning systems that have limited ***,the metrics used in current benchmarks do not evaluate all aspects of the problem,such as the diversity and admissibility of the *** authors aim to advance towards the design of trustworthy motion prediction systems,based on some of the re-quirements for the design of Trustworthy Artificial *** focus is on evaluation criteria,robustness,and interpretability of ***,the evaluation metrics are comprehensively analysed,the main gaps of current benchmarks are identified,and a new holistic evaluation framework is ***,a method for the assessment of spatial and temporal robustness is introduced by simulating noise in the perception *** enhance the interpretability of the outputs and generate more balanced results in the proposed evaluation framework,an intent prediction layer that can be attached to multi-modal motion prediction models is *** effectiveness of this approach is assessed through a survey that explores different elements in the visualisation of the multi-modal trajectories and *** proposed approach and findings make a significant contribution to the development of trustworthy motion prediction systems for autono-mous vehicles,advancing the field towards greater safety and reliability.

关键词： autonomous vehicles evaluation interpretability multi-modal motion prediction robustness trustworthy AI

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Pollen analysis reveals the effects of uncovered interactions,pollen-carrying structures,and pollinator sex on the structure of wild bee-plant networks

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Insect Science 2024年第3期31卷 971-988页

作者： Clément Tourbez Carmelo Gómez-Martínez MiguelÁngel Gonzalez-Estévez Amparo Lazaro Mediterranean Institute for Advanced studies(UIB-CSIC) Global Change Research GroupEsporlesBalearic IslandsSpain department of Biology Ecology AreaUniversity of the Balearic/slandsPalmaSpain

Pollination networks are increasingly used to model the complexity of interactions between pollinators and flowering plants in *** methods exist to sample these interactions,with direct observations of plant-pollinator contacts in the field being by far the most *** the identification of pollen carried by pollinators allows uncovering interactions and increasing sample sizes,the methods used to build pollen-transport networks are variable and their effect on network structure remains *** understand how interaction sampling influences the structure of networks,we analyzed the pollen found on wild bees from eight communities across Mallorca Island and investigated the differences in pollen loads between bee body parts(scopa ***)and *** then assessed how these differences,as well as the uncovered interactions not detected in the field,influenced the structure of wild bee-plant *** identified a higher quantity and diversity of pollen in the scopa than in the rest of the female body,but these differences did not lead to differences in structure between plant-pollination(excluding scopa pollen)and bee-feeding interaction(including scopa pollen)***,networks built with pollen data were richer in plant species and interactions and showed lower modularity and specialization(H2'),and higher nestedness than visitation networks based on field *** interactions with plants were stronger compared to those of males,although not ***,females were more generalist(low d')and tended to be more central in interaction networks,indicating their more key role structuring pollination networks in comparison to *** study highlights the importance of palynological data to increase the resolution of networks,as well as to understand important ecological questions such as the differences between plant-pollination and bee-feeding interaction networks,and the role of sexes in pollination.

关键词： palynology pollen-transport networks pollination role of bee sexes sampling methodology visitation networks

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