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Citrus black spot detection using hyperspectral imaging

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International Journal of.Agricultural and Biological Engineering 2014年第6期7卷 20-27页

作者： Daegwan Kim thomas f.Burks Mark A.Ritenour Jianwei Qin Asan Institute f.r Lif. Sciences Asan Medical CenterSongpa-guSeoul 138-736Korea Department of.Agricultural&Biological Engineering University of FloridaGainesvilleFL 32611USA Indian River Research and Education Center(IRREC) University of FloridaFt.PierceFL 34945USA Environmental Microbial and f.od Saf.ty Laboratory(EMf.L) Agricultural Research ServiceU.S.Department of AgricultureBeltsvilleMD 20705USA

This paper describes the development of.a hyperspectral imaging approach f.r identif.ing f.uits inf.cted with citrus black spot(CBS).Hyperspectral images were taken of.healthy f.uit and those with CBS symptoms or other potentially conf.unding peel conditions such as greasy spot,wind scar,or *** angle mapper(SAM)and spectral inf.rmation divergence(SID)hyperspectral analysis approaches were used to classif. f.uit samples into two classes:CBS or *** classif.cation accuracy f.r CBS with SAM approach was 97.90%,and 97.14% with *** combination of.hyperspectral images and two classif.cation approaches(SID and SAM)have proven to be ef.ective in recognizing CBS in the presence of.other potentially conf.unding f.uit peel *** study result can be a ref.rence f.r the non-destructive detection of.f.uits inf.cted with citrus black spot.

关键词： citrus black spot hyperspectral imaging spectral angle mapper spectral inf.rmation divergence imaging processing

Assessing the spatio-temporal variability of.vegetation productivity in Af.ica: quantif.ing the relative roles of.climate variability and human activities

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International Journal of.Digital Earth 2017年第9期10卷 879-900页

作者： Sabastine U.Ugbaje Inakwu O.A.Odeh thomas f.A.Bishop Jianlong Li f.culty of.Agriculture and Environment The University of SydneyEveleighAustralia The Global Change Research Institute School of Life SciencesNanjing UniversityNanjingPeople’s Republic of China

Quantitative attribution at the individual pixel level of.the relative contributions of.climate variability and human activities to vegetation productivity dynamics across Af.ica is generally *** is because of.the dif.iculty in establishing a baseline or potential vegetation against which the relative impacts of.these f.ctors can be *** study addresses these ***,annual potential net primary productivity(NPP_(P))f.r 2000–2014 was estimated f.r Af.ica using a model constructed f.om samples of.NPP and environmental covariates f.om protected ***,trends in NPP_(P),actual NPP(NPP_(A)),and human-appropriated NPP(NPP_(H)=NPP P−NPP_(A))were estimated and used in quantif.ing the relative contributions of.climate and human activities to NPP *** 2000–2014,NPP improvement was largely concentrated in equatorial and northern Af.ica,while subequatorial Af.ica exhibited the most NPP *** of.Mali,Burkina f.so,and the central Af.ica region are associated with the greatest inf.uence of.climate-driven NPP *** where humans dominated NPP decline include parts of.Ethiopia and South *** had a stronger role in driving NPP decline in subequatorial ***,f.rther work is required to validate the results of.this study with high-resolution imagery and f.eld inf.rmation.

关键词： NPP trend analysis vegetation dynamics protected areas Random f.rest

Issues in the Care and Treatment of.HCV/HIV Co-Inf.ction f.r Key Populations in Resource-Constrained Settings

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Health 2014年第14期6卷 1803-1815页

作者： thomas f. Kresina Robert Lubran H. Westley Clark Center f.r Substance Abuse Treatment Substance Abuse and Mental Health Services Administration Rockville USA

Globally, the epidemic of.hepatitis virus inf.ction is increasing in the context of.common viral transmission routes with the Human Immunodef.ciency Virus (HIV). Thus, co-inf.ction with both hepatitis virus and HIV is becoming a common occurrence, particularly f.r key populations. Studies of.key populations, people who inject drugs, sex workers, transgendered individuals and men having sex with men, report high levels of.illicit drug and/or alcohol use along with limited access to health care and medical treatment. Without the medical management of.co-occurring substance use disorders and hepatitis C virus (HCV) inf.ction, a signif.cant proportion of.this population with HCV/HIV co-inf.ction will progress to chronic liver disease then subsequently end-stage liver disease. Thus, access to comprehensive care and treatment, including HCV testing with subsequent care and treatment of.acute/chronic HCV inf.ction is essential to address the global burden of.disease. Increased ef.orts are needed globally to address the barriers to comprehensive care and treatment f.r key populations with HCV/HIV co-inf.ction.

关键词： Hepatitis C Inf.ction HIV Substance Abuse Treatment Care and Treatment Key Populations

Magnetohydrostatic modeling of.the solar atmosphere

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Science China(Technological Sciences) 2022年第8期65卷 1710-1726页

作者： ZHU XiaoShuai NEUKIRCH thomas WIEGELMANN thomas State Key Laboratory of.Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of.Mathematics and Statistics University of St AndrewsSt Andrews KY169SSUK Max-Planck-Institut f.ur Sonnensystemf.rschung G¨ottingen 37077Germany

Understanding structures and evolutions of.the magnetic f.elds and plasma in multiple layers on the Sun is very important. A f.rce-f.ee magnetic f.eld which is an accurate approximation of.the solar corona due to the low plasma β has been widely studied and used to model the coronal magnetic structure. While the f.rce-f.eeness assumption is well satisf.ed in the solar corona, the lower atmosphere is not f.rce-f.ee given the high plasma β. Theref.re, a magnetohydrostatic(MHS) equilibrium which takes into account plasma f.rces, such as pressure gradient and gravitational f.rce, is considered to be more appropriate to describe the lower atmosphere. This paper reviews both analytical and numerical extrapolation methods based on the MHS assumption f.r calculating the magnetic f.elds and plasma in the solar atmosphere f.om measured magnetograms.

关键词： magnetic f.eld photosphere chromosphere corona

Strategic Use of.Technology f.r Inclusive Education in Hong Kong:A Content-Level Perspective

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ECNU Review of.Education 2020年第4期3卷 715-734页

作者： thomas K.f.Chiu Cher Ping Lim Department of.Curriculum and Instruction Faculty of EducationThe Chinese University of Hong KongShatinNTHong Kong SARChina The Education University of.Hong Kong

Purpose:A growing body of.research has f.cused on the topic of.inclusive education f.r ethnic minorities in Hong *** the same time,f.w scholars have explored the role technology can play in enhancing inclusivity within the context of.quality *** study examines how the dif.erentiated use of.technology that takes into account disparities in prior knowledge can benef.t students of.dif.erent learning ***/Approach/Methods:This study adopted an experimental design to investigate how content-specif.c and content-neutral technologies can be strategically used to support the classroom discussions of.Chinese and ethnic minority students’learning Chinese language and *** hundred and twenty-one secondary school students participated in the *** student was randomly assigned to a condition,in a 2(ethnicity:Chinese *** minority)2(content:content-specif.c f.rst ***-neutral f.rst)***:The study f.und that(a)f.r Chinese language lessons,ethnic minority students pref.rred to learn with content-neutral and content-specif.c technologies in prediscussion and postdiscussion activities,respectively;whereas the Chinese students’pref.rences were the opposite and(b)f.r mathematics lessons,both groups of.students perf.rmed better when content-specif.c and content-neutral technologies were used in prediscussion and postdiscussion activities,***/Value:The study presents f.ve practical suggestions f.r the strategic use of.technology in inclusive classrooms in Hong Kong.

关键词： Equity ethnic minority inclusive education learner expertise technology

Validity and reliability of.the Dutch version of.the displaced aggression questionnaire

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World Journal of.Psychiatry 2021年第12期11卷 1288-1300页

作者： Danique Smeijers thomas f.Denson Erik H Bulten Inti A Brazil Behavioural Science Institute Radboud UniversityNijmegen 6525 HRThe Netherlands Pompestichting Nijmegen 6532 CNThe Netherlands School of.Psychology University of New South WalesSydney 2052Australia Radboud University Donders Institute for Brain Cognition and BehaviourNijmegen 6525 GDThe Netherlands

BACKGROUND Displaced aggression occurs when a person encounters a provoking situation,is unable or unwilling to retaliate against the original provocateur,and subsequently aggresses against a target that is not the source of.the initial *** displaced aggression questionnaire(DAQ)was developed to measure individual dif.erences in the tendency to displace *** To develop a Dutch version of.the DAQ and examine relationships between the DAQ and novel individual *** The Dutch version of.the DAQ was created using a back-translation *** students(n=413)participated in the current *** questionnaires were administered *** The results conf.rmed the original three-f.ctor structure and showed good reliability and *** also f.und dif.erential relationships between trait displaced aggression,social anxiety and cognitive *** The results may indicate that distinct patterns exist in the development of.the dif.erent dimensions of.trait displaced *** study adds to the growing cross-cultural literature showing the robustness of.trait displaced aggression in several dif.erent cultures.

关键词： Displaced aggression questionnaire Displaced aggression Questionnaire Dutch translation Psychometric properties

<i>Loa loa</i>microf.laremia in a blood donor—A case report

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Case Reports in Clinical Medicine 2013年第1期2卷 46-47页

作者： Bolaji N. thomas Adetayo f. f.gbenro-Beyioku Department of.Biomedical Sciences College of Health Sciences and Technology Rochester Institute of Technology Rochester USA Department of.Medical Microbiology and Parasitology College of Medicine University of Lagos Lagos Nigeria

We report a case of.Loa loa microf.laremia in a healthy blood donor. The potential f.r transf.sion-transmitted inf.ction and the possibility of.transf.sion-associated allergic reactions calls f.r stringent donor requi... 详细信息

关键词： Loa loa Microf.laremia Transf.sion Antibodies Asymptomatic

A phased approach to enable hybrid simulation of.complex structures

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Earthquake Engineering and Engineering Vibration 2014年第S1期13卷 63-77页

作者： Billie f.Spencer Jr. Chia-Ming Chang thomas M.f.ankie Daniel A.Kuchma Pedro f.Silva Adel E.Abdelnaby Department of.Civil Engineering University of Illinois at Urbana-Champaign Nathan M.& Anne M.Newmark Endowed Chair Earthquake Engineering Research &Test Center Guangzhou University Associate Prof.ssor Wiss JanneyElstner AssociatesInc. Department of.Civil and Environmental Engineering University of Illinois at Urbana-Champaign Department of.Civil and Environmental Engineering George Washington University Department of.Civil Engineering University of Memphis Assistant Prof.ssor

Hybrid simulation has been shown to be a cost-ef.ective approach f.r assessing the seismic perf.rmance of.structures. In hybrid simulation,critical parts of.a structure are physically tested,while the remaining portions of.the system are concurrently simulated computationally,typically using a f.nite element model. This combination is realized through a numerical time-integration scheme,which allows f.r investigation of.f.ll system-level responses of.a structure in a cost-ef.ective manner. However,conducting hybrid simulation of.complex structures within large-scale testing f.cilities presents signif.cant challenges. f.r example,the chosen modeling scheme may create numerical inaccuracies or even result in unstable simulations; the displacement and f.rce capacity of.the experimental system can be exceeded; and a hybrid test may be terminated due to poor communication between modules(e.g.,loading controllers,data acquisition systems,simulation coordinator). These problems can cause the simulation to stop suddenly,and in some cases can even result in damage to the experimental specimens; the end result can be f.ilure of.the entire experiment. This study proposes a phased approach to hybrid simulation that can validate all of.the hybrid simulation components and ensure the integrity largescale hybrid simulation. In this approach,a series of.hybrid simulations employing numerical components and small-scale experimental components are examined to establish this preparedness f.r the large-scale experiment. This validation program is incorporated into an existing,mature hybrid simulation f.amework,which is currently utilized in the Multi-Axial f.ll-Scale Sub-Structuring Testing and Simulation(MUST-SIM) f.cility of.the George E. Brown Network f.r Earthquake Engineering Simulation(NEES) equipment site at the University of.Illinois at Urbana-Champaign. A hybrid simulation of.a f.ur-span curved bridge is presented as an example,in which three piers are experimentally controlle

关键词： hybrid simulation seismic perf.rmance evaluation phased approach curved bridge MUST-SIM f.cility

Impact of.gender on outcomes af.er transcatheter aortic valve implantation

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Journal of.Geriatric Cardiology 2018年第6期15卷 394-400页

作者： Nooraldaem Yousif.Slayman Obeid Ronald Binder Andrea Denegri Mohammady Shahin Christian Templin thomas f.Luscher Department of.Cardiology University Heart Center University Hospital Zurich Switzerland and Royal Brompton & Harefield Hospital imperial College London United Kingdom

Backgound The inf.uence of.gender on clinical outcomes f.llowing transcatheter aortic valve implantation （TAVI） was considerably discrepant in previous studies. We aimed to investigate the impact of.gender in our registry. Methods The study is a retrospective observational analysis of.a prospectively designed cohort （546 consecutive patients treated at the University Hospital Zurich who were enrolled in Swiss TAVI Cohort f.om May 2008 to April 2014）. The Study took place in University Heart Centre at University Hospital Zurich, Switzerland. Results Both genders were equally represented with 51.5 % （n = 281） of.the populations being f.males, who were signif.cantly older and had a more pronounced history of.hypertension （P 〈 0.001 ）. Males on the other hand showed a higher incidence of.diabetes （P = 0.004）, coronary artery disease （P 〈 0.001）, chronic obstructive pulmonary disease （P 〈 0.001） and renal f.ilure requiring renal replacement therapy （P = 0.018）. Patients were f.llowed up f.r a median of.391 days with a 100% complete f.llow-up at one year. The primary outcome （all-cause mortality） occurred in 6.8% （n = 37） and 15% （n = 82） of.patients at 30 days and one year, respectively. The 30-day all-cause mortality outcome did not signif.cantly dif.er between f.males （7.5%） and males （6.0%）（P = 0.619）, but one year all-cause mortality occurred signif.cantly more in males than in f.males （18.7% vs. 11.7%, P 〈 0.037）. Conclusion Af.er TAVI implantation f.r severe aortic stenosis, males have a less f.vorable long-term （one year） mortality outcome than f.males.

关键词： Aortic stenosis Aortic valve Gender Transcatheter aortic valve implantation