检索结果-南通市图书馆

journal of Geriatric Cardiology 2017年第5期14卷 355-368页

作者： julieanna Hever raymond j cronise To Your Health Fitness and Nutrition Beverly Hills CA USA Thermogenex Huntsville AL USA

Cardiovascular disease remains the world＇s leading cause of death. Yet, we have known for decades that the vast majority of athero-sclerosis and its subsequent morbidity and mortality are influenced predominantly by diet. This paper will describe a health-promoting wholefood, plant-based diet; delineate macro- and micro-nulxition, emphasizing specific geriatric concerns; and offer guidance to physicians andother healthcare practitioners to support patients in successfully utilizing nutrition to improve their health.

关键词： Aging Health span Plant-based nutrition Preventive medicine Vegetarian

Prioritizing Strategies for Building the Resilience of Public Health Systems to Disasters Across Multiple Communities and Countries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International journal of Disaster Risk Science 2024年第1期15卷 1-17页

作者： Benjamin j.Ryan Mayumi Kako Shelby Garner Rok Fink Ismail Tayfur jonathan Abrahams Sanjaya Bhatia Adriana Campelo Matthew Fendt Alicia Fontenot Nahuel Arenas Garcia Tim Hatch Ryoma Kayano LaShonda Malrey‑Horne Makiko MacDermot Md Moshiur Rahman Chaverle Noel Shuhei Nomura jeremy P.Novak Maria Opazo Kendell Oliver Luciana Peters Sohel Rahman PerihanŞimşek Andrew Stricklin raymond Swienton Bryan W.Brooks Frist College of Medicine Belmont UniversityNashvilleTN 37212USA Department of Environmental Science Environmental Health Science ProgramCollege of Arts and SciencesBaylor UniversityWacoTX 76798USA Division of Nursing Science School of Biomedical and Health SciencesHiroshima UniversityHiroshima 734-8553Japan Gordon E.Inman College of Health Sciences and Nursing Belmont UniversityNashvilleTN 37212USA Faculty of Health Sciences University of Ljubljana1000 LjubljanaSlovenia Department of Emergency Medicine University of Health Sciences34668 IstanbulTurkey Monash University Accident Research Center MelbourneVIC 3800Australia Global Education and Training Institute United Nations Ofce for Disaster Risk ReductionIncheon 22004Republic of Korea Regional Ofce for the Americas and Caribbean United Nations Ofce for Disaster Risk ReductionPanama City 0843-03441Panama Engineering and Computer Science Baylor UniversityWacoTX 76798USA Department of Public Health Robbins College of Health and Human SciencesBaylor UniversityWacoTX 76798USA Alabama Department of Public Health MontgomeryAL 36092USA World Health Organization Centre for Health Development(WHO Kobe Centre) Kobe 651-0073Japan Waco-McLennan County Public Health District WacoTX 76707USA Department of Health Policy and Management School of MedicineKeio UniversityTokyo 160-8582Japan Department of Global Health Policy Graduate School of MedicineThe University of TokyoTokyo 113-0033Japan Tokyo Foundation for Policy Research Tokyo 106-6234Japan Global Development College BrisbaneQLD 4000Australia Municipality of Pudahuel 13124 PudahuelChile City Hall of Porto Alegre Porto Alegre 90010-170Brazil Ministry of Health and Family Welfare Government of the People’s Republic of BangladeshDhaka 1000Bangladesh Department of Emergency Aid and Disaster Management Trabzon University61335 TrabzonTurkey Department of Emergency Medicine UT SouthwesternDallasTX 75390USA

The COVID-19 pandemic highlighted the urgent need to strengthen public health *** response,the United Nations Disaster Risk Reduction(UNDRR) Public Health System Resilience Scorecard(Scorecard) was applied in workshops across multiple *** aim of our research was to explore the workshop findings to develop priority strategies for strengthening public health system *** conducted a workshop from 14 to 16 March 2023,at the UNDRR Global Education and Training Institute in Incheon,Republic of Korea.A sequential modified Delphi method was utilized to develop a set of prioritized resilience *** were drawn from 70 strategies identified from 13 distinct workshops in eight *** two surveys,23 strategies were *** received ratings of "High" or Very High" from89% of *** related to the inclusion of public health risks in emergency plans,integrating multidisciplinary teams into public health,enabling local transport mechanisms,and improving the ability to manage an influx of *** Scorecard provides an adaptable framework to identify and prioritize strategies for strengthening public health system *** leveraging this methodology,our study demonstrated how resilience strategies could inform disaster risk reduction funding,policies,and actions.

关键词： Health system resilience Public policy Resilience scorecard Workshops

Effect of particle stress tensor in simulations of dense gas-particle flows in fluidized beds

在线全文

学校读者我要写书评

暂无评论

Particuology 2018年第3期16卷 31-43页

作者： Mohammad Reza Haghgoo Donald j. Bergstrom raymond j. Spiteri Department of Mechanical Engineering University of Saskatchewan Saskatoon SK SFN 5A9 Canada Department of Computer Science University of Saskatchewan Saskatoon. SK S7N 5C9 Canada

A two-fluid model based on the kinetic theory of granular flow for the rapid-flow regime and the Coulomb friction law for the quasi-static regime is applied to predict the hydrodynamics of dense gas-particle flow in a three-dimensional fluidized bed. Two different models for the particle stress tensor that use different constitutive equations in the elastic-inertial regime are examined to assess their ability to predict bed dynamics. To understand how particle stress models affect structural features of the flow, a quantitative analysis is performed on some important aspects of the mechanics of bubbling beds that have received relatively little attention in the literature. Accordingly, different flow regimes are identified in the context of fluidized beds through the dimensionless inertial number, and the main characteristics of each regime are discussed. In addition, how the particle stress tensor manifests itself in the bubble characteristics, natural frequency of the bed, and particle Reynolds stress are investigated, all of which help to better understand the complex dynamics of the fluidized bed. The numerical results are validated against pub- lished experimental data and demonstrate the significant role of the stress tensor in the elastic-inertial regime.

关键词： Two-fluid model Inertial number Fluidized bed Flow regime Particle Reynolds stress MFIX

Unsupervised ore/waste classification on open-cut mine faces using close-range hyperspectral data

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Geoscience Frontiers 2023年第4期14卷 89-99页

作者： Lloyd Windrim Arman Melkumyan Richard j.Murphy Anna Chlingaryan raymond Leung Rio Tinto Centre for Mine Automation Australian Centre for Field RoboticsThe University of SydneySydney 2006Australia

The remote mapping of minerals and discrimination of ore and waste on surfaces are important tasks for geological applications such as those in *** tasks have become possible using ground-based,close-range hyperspectral sensors which can remotely measure the reflectance properties of the environ-ment with high spatial and spectral ***,autonomous mapping of mineral spectra mea-sured on an open-cut mine face remains a challenging problem due to the subtleness of differences in spectral absorption features between mineral and rock classes as well as variability in the illumination of the *** additional layer of difficulty arises when there is no annotated data available to train a supervised learning algorithm.A pipeline for unsupervised mapping of spectra on a mine face is pro-posed which draws from several recent advances in the hyperspectral machine learning *** proposed pipeline brings together unsupervised and self-supervised algorithms in a unified system to map minerals on a mine face without the need for human-annotated training *** pipeline is eval-uated with a hyperspectral image dataset of an open-cut mine face comprising mineral ore martite and non-mineralised *** combined system is shown to produce a superior map to its constituent algo-rithms,and the consistency of its mapping capability is demonstrated using data acquired at two differ-ent times of day.

关键词： Hyperspectral imaging Mineral mapping Open-cut mine face Machine learning Convolutional neural networks Illumination invariance

Allometric models for estimating aboveground biomass in the tropical woodlands of Ghana, West Africa

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Forest Ecosystems 2020年第3期7卷 539-561页

作者： raymond Aabeyir Stephen Adu-Bredu Wilson Agyei Agyare Michael j.C.Weir Department of Environment and Resource Studies UDS-Wa CampusWaGhana WASCAL Graduate Research Programme on Climate Change and Land Use KNUSTKumasiGhana Biodiversity Conservation and Ecosystem Division CSIR-Forestry Research Institute of GhanaKumasiGhana Department of Agricultural and Biosystems Engineering KNUSTKumasiGhana Department of Natural Resources Faculty of Geoinformation Science and Earth Observation(ITC)University of TwenteEnschedethe Netherlands

Background: Modelling aboveground biomass(AGB) in forest and woodland ecosystems is critical for accurate estimation of carbon stocks. However, scarcity of allometric models for predicting AGB remains an issue that has not been adequately addressed in Africa. In particular, locally developed models for estimating AGB in the tropical woodlands of Ghana have received little attention. In the absence of locally developed allometric models, Ghana will continue to use Tier 1 biomass data through the application of pantropic models. Without local allometric models it is not certain how Ghana would achieve Tier 2 and 3 levels under the United Nations programme for reducing emissions from deforestation and forest degradation. The objective of this study is to develop a mixedspecies allometric model for use in estimating AGB for the tropical woodlands in Ghana. Destructive sampling was carried out on 745 trees(as part of charcoal production) for the development of allometric equations. Diameter at breast height(dbh, i.e. 1.3 m above ground level), total tree height(H) and wood density(ρ) were used as predictors for the models. Seven models were compared and the best model selected based on model efficiency,bias(%) and corrected Akaike Information Criterion. The best model was validated by comparing its results with those of the pantropic model developed by Chave et al.(Glob Chang Biol 20:3177–3190, 2014) using equivalence test and conventional paired ***: The results revealed that the best model for estimating AGB in the tropical woodlands is AGB =0.0580ρ((dbh)2 H)0.999. The equivalence test showed that this model and the pantropic model developed by Chave et al.(Glob Chang Biol 20:3177–3190, 2014) were equivalent within ±10% of their mean predictions(p-values <0.0001 for one-tailed t-tests for both lower and upper bounds at 5% significant level), while the paired t-test revealed that the mean(181.44 ± 18.25 kg) of the model predictions of the best model of this s

关键词： Charcoal Diameter at breast height Tree height Wood density Savannah woodland

Optimal decentralized control of large scale systems

在线全文

学校读者我要写书评

暂无评论

Control Theory and Technology 2016年第4期14卷 287-313页

作者： Xiao Qi SHI Daniel E. DAVISON raymond KWONG Edward j. DAVISON Systems Control Group Department of Electrical and Computer Engineering University of Toronto Ontario Canada MSS 3G4 Department of Electrical and Computer Engineering University of Waterloo Ontario Canada N2L 3G1

This paper presents a new optimized decentralized controller design method for solving the tracking and disturbance rejection problems for large-scale linear time-invariant systems, using only low-order decentralized controllers. To illustrate the type of results which can be obtained using the new optimized decentralized control design method, the control of a large flexible space structure is studied and compared with the standard centralized LQR-observer controller. The order of the resultant decentralized controller is much smaller than that of the standard centralized LQR-observer controller. The proposed controller also has certain fail-safe properties and, in addition, it can be five orders of magnitude more robust than the standard LQR-observer controller based on their real stability radii. The new decentralized controller design method is applied to a large flexible space structure system with 5 inputs and 5 outputs and of order 24.

关键词： Decentralized control multivariable control PID control robustness optimization large-scale systems flexiblestructures

Evolutionary Optimization: Pitfalls and Booby Traps

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

journal of Computer Science & Technology 2012年第5期27卷 907-936页

作者： Thomas Weise raymond Chiong Ke Tang Nature Inspired Computation and Applications Laboratory School of Computer Science and Technology University of Science and Technology of China Hefei 230027 China Faculty of Higher Education Swinburne University of Technology 50 Melba Avenue Lilydale Victoria 3140 Australia

Evolutionary computation （EC）, a collective name rithms, is one of the fastest-growing areas in computer science. for a range of metaheuristic black-box optimization algo- Many manuals and ＂how-to＇s on the use of different EC methods as well as a variety of free or commercial software libraries are widely available nowadays. However, when one of these methods is applied to a real-world task, there can be many pitfalls and booby traps lurking certain aspects of the optimization problem that may lead to unsatisfactory results even if the algorithm appears to be correctly implemented and executed, These include the convergence issues, ruggedness, deceptiveness, and neutrality in the fitness landscape, epistasis, non-separability, noise leading to the need for robustness, as well as dimensionality and scalability issues, among others. In this article, we systematically discuss these related hindrances and present some possible remedies. The goal is to equip practitioners and researchers alike with a clear picture and understanding of what kind of problems can render EC applications unsuccessful and how to avoid them from the start.

关键词： evolutionary computing problem difficulty optimization meta-heuristics

Fluidization and bubbling behavior of potash particles in a deep fluidized bed

在线全文

学校读者我要写书评

暂无评论

Particuology 2023年第9期80卷 103-114页

作者： Mojtaba Nabipoor Hassankiadeh jingsi Yang Mark Berrey Dave jordison Lifeng Zhang Donald Bergstrom raymond j.Spiteri Department of Chemical and Biological Engineering University of SaskatchewanSKS7N 5A9SaskatoonCanada The Mosaic Company Belle PlaineSKCanada Department of Mechanical Engineering University of SaskatchewanSaskatoonCanada Department of Computer Science University of SaskatchewanSaskatoonSKCanada

Most existing models for predicting bubble size and bubble frequency have been developed for freely bubbling fluidized *** prediction of bubbling behavior in deep fluidized beds,however,has been a challenge due to the higher degree of bubble coalescence and break up,high probability of the slugging regime,partial fluidization,and chaotic behavior in the bubbling *** this work,the bubbling and fluidization behavior of potash particles was investigated in a deep fluidized bed employing a twin-plane electrical capacitance tomography(ECT)*** volume fraction,average bubble velocity,average bubble diameter,and bubble frequency in both bubbling and slugging regimes were measured at two different bed height ratios(H/D=3.5 and H/D=3.78).This work is the first to illustrate a sequential view of bubbles at different superficial gas velocities in a fluidized *** results show that both the bubble diameter and rising velocity increased with increasing the superficial gas velocity for the two bed heights,with larger values observed in the deeper bed compared to the shallower *** values for bubble diameter,bubble rise velocity and bubble frequency from different models are compared with the experimental data obtained from the ECT system in this *** agreement has been achieved between the values predicted by the previous models and the experimental data for the bubble diameter and bubble rise velocity with an average absolute deviation of 16%and 15%for the bed height of 49 cm and 13%and 8%for the bed height of 53 cm,respectively.

关键词： Deep fluidized bed Potash particle Electrical capacitance tomography Image reconstruction Bubbling and slugging regime

Hydrogen Bonded 3D Molecular Self Assembly Constructed from [(Ni(nicotinamide)_2(thiocyanate)_2(H_2O)_2] Complex Showing Spin Canted Anti-ferromagnetic Character

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese journal of Structural Chemistry 2015年第5期34卷 777-785页

作者： Deepanjali Pandey Shahid S.Narvi Gopal K.Mehrotra raymond j.Butcher Department of Chemistry Motilal Nehru National Institute of Technology Department of Chemistry Howard University

A new three-dimensional nickel（Ⅱ） hydrogen-bonded molecular self assembly containing [（Ni（nicotinamide）2（thiocyanate）2（H2O）2] complex has been synthesized and characterized by single-crystal X-ray diffraction,FTIR spectroscopy,thermal analysis and magnetic *** analysis reveals that the complex crystallizes in triclinic space group P1（crystal data a = 7.5574,b = 8.2683,c = 9.0056 A,α = 73.010,β = 69.698,γ = 66.51） and exhibits a distorted octahedral coordination *** interesting point in its structure is the involvement of sulphur atom of thiocyanate moiety in the trifurcated hydrogen bonding to build up the hydrogen-bonded self *** magnetic behavior as determined by squid magnetometer（2~300 K ***） reveals dominating antiferromagnetic interaction followed by spin canting behavior below 20 K.

关键词： hydrogen bonded 3D structure intermolecular magnetic interaction spin canting

Influence of individual tree characteristics,spatial structure and logging history on tree-related microhabitat occurrence in North American hardwood forests

在线全文

学校读者我要写书评

暂无评论

Forest Ecosystems 2021年第2期8卷 357-372页

作者： Maxence Martin Patricia raymond Yan Boucher Département des Sciences fondamentales Université du Québec à Chicoutimi555boul.de l’UniversitéChicoutimiQuébec G7H 2B1Canada Institut de la recherche sur les forêts Université du Québec en Abitibi-Témiscamingue445boul.de l’UniversitéRouyn-NorandaQuébec J9X 5E4Canada Centre d'étude de la forêt Université du Québec à MontréalP.O.Box 8888Centre-ville StationMontréalQuébec H3C 3P8Canada Direction de la recherche forestière Ministère des Forêtsde la Faune et des Parcs(MFFP)2700rue EinsteinQuébecQuébec G1P 3W8Canada

Background:Tree-related microhabitats(hereafter,"TreMs")are key components of forest biodiversity but they are still poorly known in North American hardwood *** spatial patterns of living trees bearing TreMs(hereafter,"TreM-trees")also remain to be *** logging practices can lead to a loss of TreM-trees and of their associated biodiversity,it is essential to identify the factors explaining TreM occurrence to better integrate them into forest *** therefore inventoried TreMs in 40.5-ha survey strips in northern hardwood forests in Quebec,Canada,while recording the spatial location of each *** strips were located in unmanaged oldgrowth forests,and 2 were in forests managed under selection *** 4 stands were dominated by sugar maple(Acer saccharum Marsh.)and American beech(Fagus grandifolia Ehrn.).Beech bark disease,an exotic pathology,was observed in all the ***:Large diameter at breast height and low tree vigor were the main characteristics explaining the presence of TreMs at the tree ***-trees presented slight spatial aggregation *** aggregates,however,were not well-defined and were generally constituted by a large number of trees bearing few different types of *** TreM classes(broken branch or top and woodpecker lodge)also presented a spatial *** practices had no significant effect on TreM *** bark disease increased the frequency of senescent *** impact of this pathology on TreMs was however mitigated by the small size of infected trees and probably by the short time elapsed since its ***:The factors explaining the presence and abundance of TreMs on trees has so far been little studied in North American hardwood *** results highlight that TreM-tree characteristics in the surveyed forests are consistent with those of previous studies conducted in other forest types and regions(e.g.,Europe or Northwestern America).To our knowledge,th

关键词： Habitat trees Wildlife habitat Northern hardwoods Old-growth forest Selection cutting Ecosystembased management Biodiversity indicators Conservation Forest management