Bassam Dally

Effects of hydrogen and nitrogen on soot volume fraction, primary particle diameter and temperature in laminar ethylene/air diffusion flames

Publisher: Elsevier BV

Date: 2017

DOI: 10.1016/J.COMBUSTFLAME.2016.08.031

Recent advances in the measurement of strongly radiating, turbulent reacting flows

Publisher: Elsevier BV

Date: 02-2012

DOI: 10.1016/J.PECS.2011.04.001

Characteristics of swirling and precessing flows generated by multiple confined jets

Publisher: AIP Publishing

Date: 05-2019

DOI: 10.1063/1.5089904

Abstract: An experimental study is reported of the interaction between multiple isothermal jets within a cylindrical chamber under conditions relevant to a wide range of engineering applications, including the confined swirl combustors, industrial mixers, and concentrated solar thermal devices. The particle image velocimetry technique was used to investigate the swirling and precessing flows generated with four rotationally symmetric inlet pipes at a fixed nozzle Reynolds number of ReD = 10 500 for two configurations of swirl angle (5° and 15°) and two alternative tilt angles (25° and 45°). The measurements reveal three distinctive rotational flow patterns within the external recirculation zone (ERZ) and the central recirculation zone (CRZ) for these configurations. It was found that the mean and root-mean-square flow characteristics of the swirl within the chamber depend strongly on the relative significance of the ERZ and CRZ, with the swirling velocity being higher in the CRZ than that in the ERZ. A precessing vortex core was identified for all experimental conditions considered here, although its significance was less for the cases with a dominant CRZ.

Past Decline Versus Current eGFR and Subsequent Mortality Risk

Publisher: Ovid Technologies (Wolters Kluwer Health)

Date: 11-12-2015

DOI: 10.1681/ASN.2015060688

Abstract: A single determination of eGFR associates with subsequent mortality risk. Prior decline in eGFR indicates loss of kidney function, but the relationship to mortality risk is uncertain. We conducted an in idual–level meta-analysis of the risk of mortality associated with antecedent eGFR slope, adjusting for established risk factors, including last eGFR, among 1.2 million subjects from 12 CKD and 22 other cohorts within the CKD Prognosis Consortium. Over a 3-year antecedent period, 12% of participants in the CKD cohorts and 11% in the other cohorts had an eGFR slope −5 ml/min per 1.73 m 2 per year, whereas 7% and 4% had a slope ml/min per 1.73 m 2 per year, respectively. Compared with a slope of 0 ml/min per 1.73 m 2 per year, a slope of −6 ml/min per 1.73 m 2 per year associated with adjusted hazard ratios for all-cause mortality of 1.25 (95% confidence interval [95% CI], 1.09 to 1.44) among CKD cohorts and 1.15 (95% CI, 1.01 to 1.31) among other cohorts during a follow-up of 3.2 years. A slope of +6 ml/min per 1.73 m 2 per year also associated with higher all–cause mortality risk, with adjusted hazard ratios of 1.58 (95% CI, 1.29 to 1.95) among CKD cohorts and 1.43 (95% CI, 1.11 to 1.84) among other cohorts. Results were similar for cardiovascular and noncardiovascular causes of death and stronger for longer antecedent periods (3 versus years). We conclude that prior decline or rise in eGFR associates with an increased risk of mortality, independent of current eGFR.

Temperature measurements in turbulent non-premixed flames by two-line atomic fluorescence

Publisher: Elsevier BV

Date: 2013

DOI: 10.1016/J.PROCI.2012.06.027

Resolving transient discharge cycle behaviour in modulated inductive plasmas

Publisher: Elsevier BV

Date: 12-2020

DOI: 10.1016/J.VACUUM.2020.109636

3D framework combining CFD and MATLAB techniques for plume source localization research

Publisher: Elsevier BV

Date: 12-2013

DOI: 10.1016/J.BUILDENV.2013.07.021

Experimental and computational study of soot evolution in a turbulent nonpremixed bluff body ethylene flame

Publisher: Elsevier BV

Date: 07-2013

DOI: 10.1016/J.COMBUSTFLAME.2013.02.010

Solvent effects on two-line atomic fluorescence of indium

Publisher: Optica Publishing Group

Date: 04-03-2010

DOI: 10.1364/AO.49.001257

Development of temperature imaging using two-line atomic fluorescence

Publisher: Optica Publishing Group

Date: 20-02-2009

DOI: 10.1364/AO.48.001237

Abstract: This work aims to advance understanding of the coupling between temperature and soot. The ability to image temperature using the two-line atomic fluorescence (TLAF) technique is demonstrated. Previous TLAF theory is extended from linear excitation into the nonlinear fluence regime. Nonlinear regime two-line atomic fluorescence (NTLAF) provides superior signal and reduces single-shot uncertainty from 250 K for conventional TLAF down to 100 K. NTLAF is shown to resolve the temperature profile across the stoichiometric envelope for hydrogen, ethylene, and natural gas flames, with deviation from thermocouple measurements not exceeding 100 K, and typically ≲30 K. Measurements in flames containing soot demonstrate good capacity of NTLAF to exclude interferences that h er most two-dimensional thermometry techniques.

Flow seeding with elemental metal species via an optical method

Publisher: Springer Science and Business Media LLC

Date: 25-05-2012

DOI: 10.1007/S00340-012-5065-Y

Assessment of interferences to nonlinear two-line atomic fluorescence (NTLAF) in sooty flames

Publisher: Springer Science and Business Media LLC

Date: 16-04-2011

DOI: 10.1007/S00340-011-4497-0

The influence on the soot distribution within a laminar flame of radiation at fluxes of relevance to concentrated solar radiation

Publisher: Elsevier BV

Date: 09-2011

DOI: 10.1016/J.COMBUSTFLAME.2011.01.006

Estimated glomerular filtration rate and albuminuria for prediction of cardiovascular outcomes: a collaborative meta-analysis of individual participant data

Publisher: Elsevier BV

Date: 07-2015

DOI: 10.1016/S2213-8587(15)00040-6

Decline in Estimated Glomerular Filtration Rate and Subsequent Risk of End-Stage Renal Disease and Mortality

Publisher: American Medical Association (AMA)

Date: 25-06-2014

DOI: 10.1001/JAMA.2014.6634

Recent Advances in Measurement of Turbulent Reacting Flows in Which Heat Transfer is Dominated by Radiation

Publisher: ASMEDC

Date: 2010

DOI: 10.1115/IHTC14-23422

Abstract: Recent advances in diagnostic methods are providing new capacity for detailed measurement of turbulent, reacting flows in which heat transfer is dominant. Radiation typically becomes dominant in flames containing soot and/or with sufficient physical size, so is important in many flames of practical significance. The presence of particles, including soot, increases the coupling between the turbulence, chemistry and radiative heat transfer processes. Particles also increase the difficulties of laser-based measurements by increasing the interferences to the signal and the attenuation of the beam. The paper reviews recent advances in techniques to measure temperature, mixture fraction, soot volume fraction, velocity, particle number density and the scattered, absorbed and transmitted components of radiation propagation through particle laden systems.

Operational characteristics of a parallel jet MILD combustion burner system

Publisher: Elsevier BV

Date: 02-2009

DOI: 10.1016/J.COMBUSTFLAME.2008.08.009

Simultaneous imaging of temperature and soot volume fraction

Publisher: Elsevier BV

Date: 2011

DOI: 10.1016/J.PROCI.2010.06.031

Power efficiency estimation of an inductive plasma generator using propellant mixtures of oxygen, carbon-dioxide and argon

Publisher: Elsevier BV

Date: 02-2021

DOI: 10.1016/J.ACTAASTRO.2020.11.020

Mapping the human genetic architecture of COVID-19

Publisher: Springer Science and Business Media LLC

Date: 08-07-2021

DOI: 10.1038/S41586-021-03767-X

Abstract: The genetic make-up of an in idual contributes to the susceptibility and response to viral infection. Although environmental, clinical and social factors have a role in the chance of exposure to SARS-CoV-2 and the severity of COVID-19 1,2 , host genetics may also be important. Identifying host-specific genetic factors may reveal biological mechanisms of therapeutic relevance and clarify causal relationships of modifiable environmental risk factors for SARS-CoV-2 infection and outcomes. We formed a global network of researchers to investigate the role of human genetics in SARS-CoV-2 infection and COVID-19 severity. Here we describe the results of three genome-wide association meta-analyses that consist of up to 49,562 patients with COVID-19 from 46 studies across 19 countries. We report 13 genome-wide significant loci that are associated with SARS-CoV-2 infection or severe manifestations of COVID-19. Several of these loci correspond to previously documented associations to lung or autoimmune and inflammatory diseases 3–7 . They also represent potentially actionable mechanisms in response to infection. Mendelian randomization analyses support a causal role for smoking and body-mass index for severe COVID-19 although not for type II diabetes. The identification of novel host genetic factors associated with COVID-19 was made possible by the community of human genetics researchers coming together to prioritize the sharing of data, results, resources and analytical frameworks. This working model of international collaboration underscores what is possible for future genetic discoveries in emerging pandemics, or indeed for any complex human disease.

Advancing the global public health agenda for NAFLD: a consensus statement

Publisher: Springer Science and Business Media LLC

Date: 27-10-2021

DOI: 10.1038/S41575-021-00523-4

Abstract: Non-alcoholic fatty liver disease (NAFLD) is a potentially serious liver disease that affects approximately one-quarter of the global adult population, causing a substantial burden of ill health with wide-ranging social and economic implications. It is a multisystem disease and is considered the hepatic component of metabolic syndrome. Unlike other highly prevalent conditions, NAFLD has received little attention from the global public health community. Health system and public health responses to NAFLD have been weak and fragmented, and, despite its pervasiveness, NAFLD is largely unknown outside hepatology and gastroenterology. There is only a nascent global public health movement addressing NAFLD, and the disease is absent from nearly all national and international strategies and policies for non-communicable diseases, including obesity. In this global Delphi study, a multidisciplinary group of experts developed consensus statements and recommendations, which a larger group of collaborators reviewed over three rounds until consensus was achieved. The resulting consensus statements and recommendations address a broad range of topics - from epidemiology, awareness, care and treatment to public health policies and leadership - that have general relevance for policy-makers, health-care practitioners, civil society groups, research institutions and affected populations. These recommendations should provide a strong foundation for a comprehensive public health response to NAFLD.

New Seeding Methodology for Gas Concentration Measurements

Publisher: SAGE Publications

Date: 07-2012

DOI: 10.1366/11-06553

Abstract: This paper presents the first demonstration of the pulsed laser ablation technique to seed a laminar non-reacting gaseous jet at atmospheric pressure. The focused, second harmonic from a pulsed Nd:YAG laser is used to ablate a neutral indium rod at atmospheric pressure and temperature. The ablation products generated with the new seeding method are used to seed the jet, as a marker of the scalar field. The neutral indium atoms so generated are found to be stable and survive a convection time of the order of tens of seconds before entering the interrogation region. The measurements of planar laser-induced fluorescence (PLIF) with indium and laser nephelometry measurements with the ablation products are both reported. The resulting average and root mean square (RMS) of the measurements are found to agree reasonably well although some differences are found. The results show that the pulsed laser ablation method has potential to provide scalar measurement for mixing studies.

Sungkyunkwan University School Of Medicine

Location: Korea, Republic of

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Kangbuk Samsung Hospital

Location: Korea, Republic of

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Discovery Projects - Grant ID: DP0770059

Start Date: 2007

End Date: 12-2010

Amount: $541,063.00

Funder: Australian Research Council

Linkage Projects - Grant ID: LP0233457

Start Date: 03-2002

End Date: 06-2005

Amount: $67,635.00

Funder: Australian Research Council

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0238345

Start Date: 2001

End Date: 12-2002

Amount: $373,000.00

Funder: Australian Research Council

Discovery Projects - Grant ID: DP1092488

Start Date: 06-2010

End Date: 12-2014

Amount: $500,000.00

Funder: Australian Research Council

Discovery Projects - Grant ID: DP130100198

Start Date: 04-2013

End Date: 12-2017

Amount: $650,000.00

Funder: Australian Research Council

Discovery Projects - Grant ID: DP190101712

Start Date: 07-2019

End Date: 06-2022

Amount: $520,000.00

Funder: Australian Research Council

Discovery Projects - Grant ID: DP170101013

Start Date: 2017

End Date: 12-2019

Amount: $367,000.00

Funder: Australian Research Council

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE110100225

Start Date: 07-2011

End Date: 11-2012

Amount: $600,000.00

Funder: Australian Research Council

Discovery Projects - Grant ID: DP110104410

Start Date: 03-2011

End Date: 08-2016

Amount: $360,000.00

Funder: Australian Research Council

Discovery Projects - Grant ID: DP0210913

Start Date: 2002

End Date: 12-2005

Amount: $277,000.00

Funder: Australian Research Council

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0883111

Start Date: 06-2008

End Date: 12-2010

Amount: $570,000.00

Funder: Australian Research Council

Linkage Projects - Grant ID: LP110200060

Start Date: 06-2012

End Date: 06-2018

Amount: $750,000.00

Funder: Australian Research Council

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0882725

Start Date: 2008

End Date: 12-2012

Amount: $1,000,000.00

Funder: Australian Research Council

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE130100127

Start Date: 2013

End Date: 12-2015

Amount: $400,000.00

Funder: Australian Research Council

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE180100203

Start Date: 2018

End Date: 12-2019

Amount: $956,700.00

Funder: Australian Research Council

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0453629

Start Date: 2003

End Date: 12-2004

Amount: $322,077.00

Funder: Australian Research Council