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Unveiling the photocatalytic marvels:recent advances in solar heterojunctions for environmental remediation and energy harvesting

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journal of Environmental Sciences 2025年第2期148卷 283-297页

作者： Najmeh Askari Mansoureh jamalzadeh Aghil Askari Naiyun Liu Bijan Samali Mika Sillanpaa Leigh sheppard Haitao Li raf Dewil Department of Chemical Engineering Process and Environmental Technology LabKU LeuvenDe Nayerlaan 5 Sint-Katelijne-Waver2860Belgium Department of Plastics Engineering UMass LowellLowellMA 01851USA Department of Mechanical Engineering UMass LowellLowellMA 01851USA Institute for Energy research Jiangsu UniversityZhenjiang 212013China Centre for Infrastructure Engineering Western Sydney UniversityPenrith NSW2751Australia Department of Biological and Chemical Engineering Aarhus UniversityGustav Wieds Vej 108000 AarhusDenmark Solar Energy Technologies research Group Western Sydney UniversityPenrith NSW2751Australia Department of Engineering Science University of OxfordParks RoadOxfordOX13PJUnited Kingdom

In the quest for effective solutions to address *** meet the escalating energy demands,heterojunction photocatalysts have emerged as a captivating and versatile *** photocatalysts have garnered significant interest due to their wideranging applications,including wastewater treatment,air purification,CO_(2) capture,and hydrogen generation via water *** technique harnesses the power of semiconductors,which are activated under light illumination,providing the necessary energy for catalytic *** visible light constituting a substantial portion(46%)of the solar spectrum,the development of visible-light-driven semiconductors has become *** photocatalysts offer a promising strategy to overcome the limitations associated with activating semiconductors under visible *** this comprehensive review,we present the recent advancements in the field of photocatalytic degradation of contaminants across diverse media,as well as the remarkable progress made in renewable energy ***,we delve into the crucial role played by various operating parameters in influencing the photocatalytic performance of heterojunction ***,we address emerging challenges and propose novel perspectives to provide valuable insights for future advancements in this dynamic research *** unraveling the potential of heterojunction photocatalysts,this reviewcontributes to the broader understanding of their applications and paves the way for exciting avenues of exploration and innovation.

关键词： Heterojunction photocatalysts Solar photocatalysis Environmental depollution Energy conversion Visible-light-driven semiconductors

A quasi-crystal model of collagen microstructure based on SHG microscopy

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Chinese Optics Letters 2010年第2期8卷 213-216页

作者： Pu Xu Eleanor Kable colin j. r. sheppard Guy Cox Australian Key Centre for Microscopy and MicroanMysis University of Sydney NSW 2006 Australia Division of Bioengineering National University of Singapore Singapore 117576 Key Laboratory of Ecophysics Department of Physics Shihezi University Shihezi 832000 China

Second harmonic generation （SHG） results from molecules which are polarized by an external electric field often provided by an intense laser beam. The polarizability depends on firstly the intrinsic structural properties of the substance and hence the second-order nonlinear susceptibility, and secondly the intensity and polarization direction of the incident light. The polarization characteristics of the beam are therefore of interest. In this letter, we discuss some considerations in SHG microscopy of collagen when the incoming beam is circularly polarized, and present some supporting results as well as a numerical analysis. We propose a quasi-crystal model of collagen microstructure in an effort to further our understanding on this protein.

关键词： Collagen Electric fields Harmonic generation Nonlinear optics Numerical analysis Polarization Quasicrystals

Quasi-static simulations of compact polydisperse particle systems

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Particuology 2010年第2期8卷 119-126页

作者： colin Thornton School of Civil Engineering University of Birmingham Birmingham UK

The Discrete Element Method （DEM） was originally devised by Cundail and Strack （1979）, as a technique to examine the micromechanics of granular media with the anticipation that this would lead to more physically reliable continuum theories to describe the quasi-static deformation of granular material such as sand. However, the methodology models the evolution of a system of particles as a dynamic process. Consequently there have been numerous publications of the application of DEM to an increasingly wider variety of problems in many areas of engineering and science. This paper, however, focuses on the orig- inal motivation for DEM and attempts to provide a state-of-the-art understanding of the quasi-static deformation of granular media. 2009 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

关键词： Discrete Element MethodQuasi-static deformationGranular media

Incident prevention tools-incident investigations and pre-job safety analyses

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International journal of Mining Science and Technology 2017年第4期27卷 635-640页

作者： Morrish colin Chartered Safety & Health Practitioner 137 Sea Road Westgate-on-Sea UK

Careful and thorough incident investigations and pre-job safety analyses completed by knowledgeable and competent individuals can significantly reduce workplace incidents. Working parties must act together to make these safety tools effective. To get the staff units to work together in a co-ordinated manner, they must be shown the value of their work in preventing accidents. Examples of actual accidents investigated during the author's 18 years as a mine inspector in Saskatchewan are discussed within the context of pre-job safety analyses. The causes of the accidents are explored with close reference to how pre-job safety analyses could have prevented their occurrence.

关键词： Accident prevention Incident investigations Pre-job safety analysis Directives Working parties Behaviour change whee Actual cases

Integrating volunteered smartphone data with multispectral remote sensing to estimate forest fuels

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International journal of Digital Earth 2016年第2期9卷 171-196页

作者： colin j.Ferster Nicholas C.Coops Department of Forest resources Management University of British ColumbiaVancouverBCCanada

Volunteered data sources are readily available due to advances in electronic communications *** example,smartphones provide tools to collect ground-based observations over broad areas from a diverse set of data collectors,including people with,and without,extensive *** this study,volunteers used a smartphone application to collect ground-based *** structural components were then estimated over a broader area using high spatial resolution rapidEye remote sensing imagery(5 spectral bands 440–850 nm,5 m spatial resolution)and a digital elevation model following a three nearest neighbor approach(K-NN).Participants with professional forestry experience on average chose highpriority fuel load locations near buildings,while nonprofessional participants chose a broader range of conditions over a larger *** used together,the professional and nonprofessional observations provided a more complete assessment of forest conditions.A generalized framework is presented that utilizes K-NN imputation tools for estimating the distribution of forest fuels using remote sensing and topography variables,ensuring spatial representation,checking attribute accuracy,and evaluating predictor *** to integrate volunteered data from smartphone platforms with remote sensing may contribute toward more complete Earth observation for Digital Earth.

关键词： citizen science public participation in scientific research mobile rapidEye red edge WUI

Evolution of endovascular mechanical thrombectomy for acute ischemic stroke

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World journal of Clinical Cases 2014年第11期2卷 614-622页

作者： colin j Przybylowski Dale Ding robert M Starke Christopher r Durst r Webster Crowley Kenneth C Liu Department of Neurological Surgery University of VirginiaCharlottesvilleVA 22908United States Department of radiology and Medical Imaging University of Virginia Charlottesville VA 22908 United States

Acute ischemic stroke(AIS) is a common medical problem associated with significant morbidity and mortality worldwide. A small proportion of AIS patients meet eligibility criteria for intravenous thrombolysis(IVT) with recombinant tissue plasminogen activator, and its efficacy for large vessel occlusion is poor. Therefore, an increasing number of patients with AIS are being treated with endovascular mechanical thrombectomy when IVT is ineffective or contraindicated. rapid advancement in catheter-based and endovascular device technology has led to significant improvements in rates of cerebral reperfusion with these devices. Stentrievers and modern aspiration catheters have now surpassed earlier generation devices in the degree and rapidity of revascularization. This progress has been achieved with no concurrent increase in risk of major complications or mortality, both when used alone or in combination with IVT. The initial randomized controlled trials comparing endovascular therapy to IVT for AIS failed to show superior outcomes with endovascular treatment, butkey limitations of each trial may limit the significance of these results to current practice. While endovascular devices and operator experience continue to evolve, we are optimistic that this will be accompanied by improvements in patient outcomes. This review highlights the major endovascular devices used in current practice and the trials which have investigated their efficacy.

关键词： Cerebral infarction Endovascular procedures Intracranial hemorrhages Stents Stroke

A diagnosis with a twist:Ultrasonographic sensitivity and predictors of pediatric ovarian torsion within a large pediatric hospital

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World journal of Emergency Medicine 2022年第3期13卷 229-231页

作者： Mark K.Hewitt jesse E.Marshall-sheppard April j.Kam Department of Medicine Division of Emergency MedicineMcMaster UniversityHamilton L8S 4L8Canada Department of Family Medicine University of TorontoToronto M5S1A1Canada Department of Pediatrics Division of Pediatric Emergency MedicineMcMaster UniversityHamilton 8S 4L8Canada

The diagnosis of ovarian torsion(OT)in girls is challenging compared to that of testicular torsion in boys for many reasons,but it behooves the medical community to continue to strive to better identify this uncommon but clinically important pathology^([1]) OT occurs when the ovary and associated structures rotate around its vascular pedicle,leading to eventually irreversible necrosis.^([2,3])Studies attempting to identify clinical features for early diagnosis have not reached a consensus on the best clinical predictors of this condition,making radiographic imaging of the ovaries even more crucial.^([4,5])

关键词： diagnosis pediatric torsion

Ecosystem classification and inventory maps as surrogates for ground beetle assemblages in boreal forest

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journal of Plant Ecology 2012年第1期5卷 97-108页

作者： j.A.colin Bergeron F.Guillaume Blanchet john r.Spence W.jan A.Volney Department of renewable resources University of Alberta751 General Services BuildingEdmontonAlbertaCanada T6G 2H1 Natural resources Canada Northern Forestry Centre5320122 Street NorthwestEdmontonAlbertaCanada T6H 3S5

Aims We compare performance of ecosystem classification maps and provincial forest inventory data derived from air photography in reflecting ground beetle(Coleoptera:Carabidae)biodiversity patterns that are related to the forest canopy *** biodiversity surrogacy model based on remotely sensed tree canopy cover is validated against field-collected ground *** We used a systematic sampling grid of 198 sites,covering 84 km^(2) of boreal mixedwood forest in northwestern Alberta,*** every site,we determined tree basal area,characterized the ground beetle assemblage and obtained corresponding provincial forest inventory and ecosystem classification *** used variation partitioning,ordination and misclassification matrices to compare beetle biodiversity patterns explained by alternative databases and to determine model biases originating from air *** Findings Ecosystem classification data performed better than canopy cover derived from forest inventory maps in describing ground beetle biodiversity *** biodiversity surrogacy models based on provincial forest inventory maps and field survey generally detected similar patterns but inaccuracies in air photo-interpretation of relative canopy cover led to differences between the two *** to field survey data,air photo-interpretation tended to confuse two Picea species and two Populus species present and homogenize stand *** generated divergence in models of ecological association used to predict the relationship between ground beetle assemblages and tree canopy *** of relative canopy cover from provincial inventory with other georeferenced land variables to produce the ecosystem classification maps improved biodiversity predictive *** association observed between uncommon surrogates and uncommon ground beetle species emphasizes the benefits of detecting these surrogates as a part of landscape *** order to comple

关键词： biodiversity surrogate regional conservation forest inventory ecosystem classification Carabidae

A plant-based diet and animal protein： questioning dietary fat and consideringanimal protein as the main cause of heart disease

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journal of Geriatric Cardiology 2017年第5期14卷 331-337页

作者： Thomas colin Campbell Emeritus of Nutritional Biochemistry Cornell University 8 Fiddlers Green Lansing NY 14882 USA.

Dietary ＇fat＇（e.g., oils, triglycerides, cholesterol） haslong been considered a major risk factor for cardiovascularand related diseases. As reviewed elsewhere,Vogel in1847 identified cholesterol as a major compo... 详细信息

关键词： Cardiovascular disease Cholesterol Dietary protein