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Showing 1 to 20 of 71 for “"DPM"”.
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IP traceback with deterministic packet marking DPM
… (IP) Traceback - Deterministic Packet Marking (DPM) is presented. The proposed approach is scalable, simple to implement, and introduces no bandwidth and practically no processing overhead on the network equipment. It is capable of tracing thousands of simultaneous attackers during a Distributed …
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A Series of Studies to Support and Improve DPM Sampling in Underground Mines
Diesel particulate matter (DPM) is the solid portion of diesel exhaust, which occurs primarily in the submicron range. It is complex in nature, occuring in clusters and agglomerated chains, and with variable composition depending on engine operating conditions, fuel type, equipment maintenance, …
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Raman microscopy studies of carbon particles from diesel particulate matter (DPM) and coal dust
Diesel Particulate Matter (DPM) and coal dust samples were characterised using Raman microscopy, X-ray Photoelectron Spectroscopy (XPS), Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS), Thermo-Gravimetric Analysis (TGA), X-ray Fluorescence (XRF) spectrometry and Scanning …
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Continuous DPM Monitoring in Underground Mine Environments: Demonstration of Potential Options in the Laboratory and Field
Diesel particulate matter (DPM) is the solid portion of diesel exhaust. DPM occurs primarily in the submicron range, and poses a number of respiratory and other health hazards including cardiovascular and pulmonary disease. Underground miners typically have the highest DPM exposures compared to …
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Real-time diesel particulate matter monitoring in underground mine atmospheres, association with the standard method and related challenges
… harmful. The standard Diesel Particulate Matter (DPM) monitoring method (NIOSH 5040 method) has limitations that preclude rapid DPM estimation and detailed understanding of DPM variations over time. However, real-time DPM monitors do not inherit these limitations. Biodiesel is often used as a …
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A Laboratory Investigation of Abatement of Airborne Diesel Particulate Matter Using Water Droplets
The term diesel particulate matter (DPM) is used to refer to the solid phase of diesel exhaust, which is mainly composed of elemental carbon and organic carbon. DPM is generally in the nano-size range (i.e., 10-1,000 nm). Occupational exposure is a health concern, with effects ranging from minor …
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A fogging scrubber to treat diesel exhaust: field testing and a mechanistic model
Diesel particulate matter (DPM) is comprised of two main fractions, organic carbon (OC) and elemental carbon (EC). DPM is the solid portion of diesel exhaust and particles are submicron in size typically ranging from 10 to 1000 nanometers. DPM is a known respirable hazard and occupational exposure …
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Structure-Activity Relationship and Mechanistic Studies on the Chemopreventive Activity of Dipyridamole and Its Analogues
… transport inhibitor dipyridamole (<strong>DPM</strong>) showed potent chemopreventive activity against JB6 P<sup>+</sup>cells (tumor promotion sensitive). To probe the effects of <strong>DPM</strong> structural features on its antitumor promotion activity, the soft-agar colony forming …
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Investigation of a Design Performance Measurement Tool for improving collaborative design during a design process
… <br/><br/>A Design Performance Measurement (DPM) tool, which enables design managers and designers to measure and improve design collaboration during a design process, has been developed. The DPM tool can support the design team members in learning from performance measurement and, in turn, …
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Nuclear magnetic resonance studies of dynamic cobalt and rhodium clusters in solution and in the solid state
… cobalt complexes containing the bisphosphines DPM, bis(diphenylphosphino)methane; DMPM, (dimethyl-diphenylphosphino)methane; and DMM, bis(dimethylphosphino)methane is very fast at temperatures down to -80°C. For the tetranuclear clusters Co₄(CO)₈(DPM)₂, Co₄(CO)₈(DMPM)₂, Co₄(CO)₈(DMM)₂, and …
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Personality and Cultural Attitudes
… and extended the influential Dual Process Model (DPM; Duckitt, 2001) by positing that personality traits predict cultural attitudes through two different mediated mechanisms: 1) Agreeableness predicts cultural attitudes through social dominance orientation (SDO), whereas 2) Openness predicts …
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Stochastic Learning Feedback Hybrid Automata for Dynamic Power Management in Embedded Systems
Dynamic Power Management (DPM) refers to the strategies employed at system level to reduce energy expenditure (i.e. to prolong battery life) in embedded systems. The trade-off involved in DPM techniques is between the reductions of energy consumption and latency incurred by the jobs to be executed …
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These Days Are Ours: Exploring Young Disabled People's Experiences and Views of the Disabled People's Movement
… within the UK Disabled People’s Movement (DPM). Challenges they face were identified following a qualitative investigation. Seventeen semi-structured interviews were conducted with both young disabled people and established members of the Movement. The thesis argues that, for the Movement …
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VOC Interference with Standard Diesel Particulate Analysis for Mine Samples: Exploring Sources and Possible Solutions
… exhaust, known as diesel particulate matter (DPM). The majority of DPM mass is attributed to particulate organic carbon (POC) and elemental carbon (EC). Total carbon (TC) is the sum of POC and EC and currently used as the surrogate to represent DPM as a whole. The NIOSH Method 5040 is the …
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Nonparametric Bayesian Quantile Regression via Dirichlet Process Mixture Models
… regression usingDirichlet process mixture (DPM) models. All the existing quantile regression methodsbased on DPMs require the kernel density to satisfy the quantile constraint, hence thekernel densities are themselves usually in the form of mixtures. One innovation of ourapproaches is that …
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Applications of Thermal and Laser-Based Methods for Monitoring Airborne Particulates in Coal Mines
… dust, as well as, diesel particulate matter (DPM). These particulates have historically, and continue to have, significant health impacts on underground miners. Chapters 1 and 2 of this thesis concentrate on using a novel method of thermogravimetric analysis (TGA) to characterize respirable …
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Diffraction phase microscopy for applications in materials science
… phase information. Diffraction phase microscopy (DPM) utilizes a compact Mach-Zehnder interferometer to combine many of the best attributes of current QPI methods. This compact configuration is common-path which inherently cancels out most mechanisms responsible for noise and is single-shot …
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Investigations of delayed plumage maturation in the orchard oriole
I investigated delayed plumage maturation (DPM) in the orchard oriole Icterus spurius), a dichromatic neo-tropical migrant in which first year males possess a distinct non-definitive plumage. I used model/playback experiments to test predictions of alternative breeding season signaling hypotheses …
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Mathematical modeling of the fluid flow, multicomponent slag-metal reactions and desulfurization efficiency in gas-stirred ladles
… of fluid (VOF) model, discrete phase model (DPM), and realizable k-ε model were applied to describe the argon/steel/slag/air multiphase evolution and the turbulent flow. The model was validated by comparing the simulation results with the experimental data based on a water model and an …
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Diagnóstico de derrame pleural maligno mediante la concentración de homocisteína en líquido pleural
Introducción: los derrames pleurales malignos (DPMs) son exudados causados por la presencia de tumores en la pleura (cáncer). La concentración de homocisteína en líquido pleural (HCY) puede ser útil para el diagnóstico de DPM. Objetivos: los objetivos de este estudio fueron evaluar la concentración …
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