Comparison of the detectability and annoyance value of embedded MPEG-2 artifacts of different type, size, and duration

2001 ◽  
Author(s):  
Michael S. Moore ◽  
John M. Foley ◽  
Sanjit K. Mitra
Keyword(s):  
Type Size

scholarly journals Nanometals-Containing Polymeric Membranes for Purification Processes

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 513
Author(s):  
Anna Rabajczyk ◽  
Maria Zielecka ◽  
Krzysztof Cygańczuk ◽  
Łukasz Pastuszka ◽  
Leszek Jurecki
Keyword(s):  
Synergistic Effects ◽  
Membrane Surface ◽  
Antibacterial Properties ◽  
Polymeric Membranes ◽  
Treatment Processes ◽  
Wide Range ◽  
Different Types ◽  
Type Size ◽  
Titanium Zinc ◽  
Membrane Surface Charge

A recent trend in the field of membrane research is the incorporation of nanoparticles into polymeric membranes, which could produce synergistic effects when using different types of materials. This paper discusses the effect of the introduction of different nanometals such as silver, iron, silica, aluminum, titanium, zinc, and copper and their oxides on the permeability, selectivity, hydrophilicity, conductivity, mechanical strength, thermal stability, and antiviral and antibacterial properties of polymeric membranes. The effects of nanoparticle physicochemical properties, type, size, and concentration on a membrane’s intrinsic properties such as pore morphology, porosity, pore size, hydrophilicity/hydrophobicity, membrane surface charge, and roughness are discussed, and the performance of nanocomposite membranes in terms of flux permeation, contaminant rejection, and antifouling capability are reviewed. The wide range of nanocomposite membrane applications including desalination and removal of various contaminants in water-treatment processes are discussed.

scholarly journals Microplastics distribution in the Eurasian Arctic is affected by Atlantic waters and Siberian rivers

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Evgeniy Yakushev ◽  
Anna Gebruk ◽  
Alexander Osadchiev ◽  
Svetlana Pakhomova ◽  
Amy Lusher ◽  
...  
Keyword(s):  
Surface Water ◽  
Surface Waters ◽  
Water Masses ◽  
The Arctic ◽  
Plastic Pollution ◽  
Siberian River ◽  
Highest Weight ◽  
Surface Samples ◽  
Atlantic Origin ◽  
Type Size

AbstractPlastic pollution is globally recognised as a threat to marine ecosystems, habitats, and wildlife, and it has now reached remote locations such as the Arctic Ocean. Nevertheless, the distribution of microplastics in the Eurasian Arctic is particularly underreported. Here we present analyses of 60 subsurface pump water samples and 48 surface neuston net samples from the Eurasian Arctic with the goal to quantify and classify microplastics in relation to oceanographic conditions. In our study area, we found on average 0.004 items of microplastics per m3 in the surface samples, and 0.8 items per m3 in the subsurface samples. Microplastic characteristics differ significantly between Atlantic surface water, Polar surface water and discharge plumes of the Great Siberian Rivers, allowing identification of two sources of microplastic pollution (p < 0.05 for surface area, morphology, and polymer types). The highest weight concentration of microplastics was observed within surface waters of Atlantic origin. Siberian river discharge was identified as the second largest source. We conclude that these water masses govern the distribution of microplastics in the Eurasian Arctic. The microplastics properties (i.e. abundance, polymer type, size, weight concentrations) can be used for identification of the water masses.

scholarly journals Simulation of Doppler Lidar Measurement Range and Data Availability

2016 ◽  
Vol 33 (5) ◽  
pp. 977-987 ◽  
Author(s):  
Matthieu Boquet ◽  
Philippe Royer ◽  
Jean-Pierre Cariou ◽  
Mehdi Machta ◽  
Matthieu Valla
Keyword(s):  
Measurement Range ◽  
Data Availability ◽  
Lidar Measurement ◽  
Doppler Lidar ◽  
New Approach ◽  
Density Distributions ◽  
Time Period ◽  
Atmospheric Observations ◽  
Type Size ◽  
Weather Stations

AbstractThe measurement range of a coherent wind Doppler lidar (CWDL) along a laser beam is the maximum distance from the lidar where wind speed data are accurately retrieved. It means that, at this distance, a sufficient number of emitted laser photons are backscattered and received by the lidar. Understanding of the propagation of the laser through the atmosphere, and particularly the backscattering and extinction processes from aerosols, is therefore important to estimate the metrological performances of a CWDL instrument. The range is directly related to specific instrument characteristics and atmospheric content, such as the aerosols type, size, and density distributions. Associated with the measurement range is the notion of data availability, which can be defined, at a given range and over a time period, as the percentage number of data retrieved correctly by the CWDL over the total number of measurement attempts.This paper proposes a new approach to predict the CWDL data availability and range of measurement using both instrumental simulation and atmospheric observations of aerosol optical properties from weather stations and simulations. This method is applied in several CWDL measurement campaigns during which estimated data availabilities and ranges are compared with the observations. It is shown that it is fairly possible to anticipate the data availability and the range coverage of CWDL technology at any site of interest where atmospheric data are available. The method also offers an additional way to diagnose the operation of the instrument and will help in the design of future instruments.

scholarly journals P-59 Choice of FISH or array-CGH for PGD of chromosomal rearrangements depending on type, size and position of translocated segments

2013 ◽  
Vol 26 ◽  
pp. S49
Author(s):  
Z. Zlatopolsky ◽  
I. Kirillova ◽  
A. Goodman ◽  
Y. Ilkevitch ◽  
S. Rechitsky ◽  
...  
Keyword(s):  
Array Cgh ◽  
Chromosomal Rearrangements ◽  
Type Size

DO PROINFLAMMATORY CYTOKINES SERVE AS DIAGNOSTIC OR PROGNOSTIC INDICATORS FOR TUMOR TYPE, STAGE, SIZE, STANDARDIZED UPTAKE VALUE, AND LYMPHOVASCULAR INVASION IN LUNG CANCER?

2021 ◽  
pp. 203-208
Author(s):  
Nilgün Kanlıoğlu Kuman ◽  
Leyla Didem Kozacı ◽  
Serdar Şen ◽  
Ekrem Şentürk ◽  
Salih Çokpınar ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Lymphovascular Invasion ◽  
Standardized Uptake Value ◽  
Histological Type ◽  
Prognostic Indicators ◽  
Tumor Type ◽  
Acute Phase Reactants ◽  
Lung Cancers ◽  
Tnf Α ◽  
Type Size

Objectives: The number of human studies on the association and clinical signicance of alterations in IL-6, sP-Selectin, TNF-α, BNP-32, or procalcitonin (PCT) in lung cancer is small. We aimed to investigate the alterations of proinammatory cytokines and acute-phase reactants in blood and pleural uid and determine their clinical diagnostic or prognostic signicances regarding tumor type, stage, size, standardized uptake value (SUV), and lymphovascular invasion (LVI). Methods: Levels of IL-6, TNF-α, BNP-32, PCT, and sP-selectin were evaluated in blood samples st th st th th obtained preoperatively and postoperatively on 1 , 6 hours and 1 , 4 , and seven days. They also were evaluated in pleural st uid samples obtained postoperatively on 1 hour, and rst and fourth days. These results were analyzed according to the cell type, size, stage, SUV, and LVI of lung cancer. IL-6 values in plasma and pleural uid had Results: various signicant relationships and correlations with histological type, diameter, SUV, stage, and LVI of the tumor. TNF-α values in plasma or pleural uid had signicant relationships with LVI only. PCT values in plasma or pleural uid had signicant relationships with the tumor's diameter, SUV, and LVI. BNP-32 values in plasma or pleural uid had signicant relationships with histological type and SUV of the tumor. sP-Selectin values in plasma or pleural uid had signicant relationships with the stage and SUV of the tumor. We determined various signicant associations and correlations of proinammatory cytokines wi Conclusions: th histological type, size, stage, LVI, and SUV of lung cancer. Studies on this subject would serve to develop diagnostic and prognostic methods in lung cancers.

Qualitative Characteristics of Financial Reporting and Non-Financial Business Performance

2017 ◽  
Vol 4 (2) ◽  
pp. 1-22 ◽  
Author(s):  
Ahmed Al-dmour ◽  
Maysem F Abbod ◽  
Hani H Al-dmour
Keyword(s):  
Financial Reporting ◽  
Structural Equation ◽  
Business Performance ◽  
Demographic Characteristics ◽  
Primary Data ◽  
Business Organizations ◽  
Top Managers ◽  
Type Size ◽  
Qualitative Characteristics

The purpose of this article is to examine empirically, validate, and predict the reliability of the proposed relationship between the qualitative characteristics of financial reporting and non-financial business performance via the moderating role of the organizational demographic characteristics (type, size and experience). The article is based on primary data collected through a structured questionnaire from 239 out 328 of shareholdings companies in Jordan, and the single key respondents approach was employed. The quality of financial reporting was conceptualized by the IASB's framework fundamental qualitative characteristics (2008). The data were analyzed using structural equation modelling. The results showed that the magnitude and significance of the loading estimate indicate that the qualitative characteristics of financial reporting (i.e., relevance, understandability, faithful representation, comparability and timeliness) are significantly influence the non-financial business performance and the variation of relationship could be due to the demographic characteristics of the organizations (type, size, and experience). The article has important implications for accounting managers, auditors and financial practitioners and top managers in the surveyed companies and in similar organizations. The authors believe that the decision-makers of business organizations could benefit from this study's findings with a better understanding of the importance of the qualitative characteristics of financial reporting as well as their relationship with non-financial business performance.

A Structure Nondestructive Evaluation Using Laser-Generated Ultrasonic Application

2004 ◽  
Vol 261-263 ◽  
pp. 1367-1372
Author(s):  
Jae Yeol Kim ◽  
S.U. Yoon ◽  
Kyeung Cheun Jang ◽  
Myung Soo Ko ◽  
Jae Sin An
Keyword(s):  
Light Beam ◽  
Laser Frequency ◽  
Test Material ◽  
Time Shift ◽  
Ultrasonic Signals ◽  
Fabry Perot ◽  
Convex Mirror ◽  
Type Size ◽  
Pulse Type ◽  
Stable Frequency

In the present study, a Nd;YAG Laser (pulse type) was used to emit ultrasonic signals to a test material. In addition, a total ultrasonic investigation system was designed by adopting a Fabry-Perot interferometer, which receives ultrasonic signals without any contact. For non-destructive test SM45C, which contains some flaws was used as a test material. Because it is easy to align light beam in receiver, and the length of the light beam does not change much even if convex mirror leans towards one side, confocal Fabry-Perot interferometer, which has stable frequency, and PI control are used to correct interfered and unstable signals from temperature, fluctuation and time shift of laser frequency. Stable signals are always obtained by the feedback of PI circuit signals in the confocal Fabry-Perot interferometer. The type, size and position of flaws inside the test material were examined by achieving the stabilization of an interferometer. This study presented a useful method, which could quantitatively investigate the fault of objects by using a Fabry-Perot interferometer.

scholarly journals Valve Type, Size, and Deployment Location Affect Hemodynamics in an In Vitro Valve-in-Valve Model

2016 ◽  
Vol 9 (15) ◽  
pp. 1618-1628 ◽  
Author(s):  
Prem A. Midha ◽  
Vrishank Raghav ◽  
Jose F. Condado ◽  
Ikechukwu U. Okafor ◽  
Stamatios Lerakis ◽  
...  
Keyword(s):  
Type Size ◽  
Valve In Valve ◽  
Valve Model

scholarly journals Analysis of the Caenorhabditis elegans axonal guidance and outgrowth gene unc-33.

Genetics ◽  
1992 ◽  
Vol 132 (3) ◽  
pp. 675-689 ◽  
Author(s):  
W Li ◽  
R K Herman ◽  
J E Shaw
Keyword(s):  
Caenorhabditis Elegans ◽  
Gamma Ray ◽  
Protein A ◽  
Genomic Region ◽  
Axonal Guidance ◽  
Significant Similarity ◽  
Spliced Leader ◽  
Neuronal Processes ◽  
Type Size ◽  
Intermediate Size

Abstract Mutations in the unc-33 gene of the nematode Caenorhabditis elegans lead to severely uncoordinated movement, abnormalities in the guidance and outgrowth of the axons of many neurons, and a superabundance of microtubules in neuronal processes. We have cloned unc-33 by tagging the gene with the transposable element Tc4. Three unc-33 messages, which are transcribed from a genomic region of at least 10 kb, were identified and characterized. The three messages have common 3' ends and identical reading frames. The largest (3.8-kb) message consists of the 22-nucleotide trans-spliced leader SL1 and 10 exons (I-X); the intermediate-size (3.3-kb) message begins with SL1 spliced to the 5' end of exon V and includes exons V-X; and the smallest (2.8-kb) message begins within exon VII and also includes exons VIII-X. A gamma-ray-induced deletion mutation situated within exon VIII reduces the sizes of all three messages by 0.5 kb. The three putative polypeptides encoded by the three messages overlap in C-terminal sequence but differ by the positions at which their N termini begin; none has significant similarity to any other known protein. A Tc4 insertion in exon VII leads to alterations in splicing that result in three approximately wild-type-size messages: the Tc4 sequence and 28 additional nucleotides are spliced out of the two larger messages; the Tc4 sequence is trans-spliced off the smallest message such that SL1 is added 13 nucleotides upstream of the normal 5' end of the smallest message.

scholarly journals Microphysical evidence of the transition between predominant convective/stratiform rainfall associated with the intraseasonal oscillation in the Southwest Amazon

2005 ◽  
Vol 35 (2) ◽  
pp. 175-184 ◽  
Author(s):  
Rachel Ifanger Albrecht ◽  
Maria Assunção Faus da Silva Dias
Keyword(s):  
Intraseasonal Oscillation ◽  
Convective Precipitation ◽  
Wind Regime ◽  
Tropical Regions ◽  
Stratiform Precipitation ◽  
Type Size ◽  
Global Atmospheric Circulation ◽  
Microphysical Processes ◽  
Wind Regimes ◽  
Precipitation Formation

The distinction between convective and stratiform precipitation profiles around various precipitating systems existent in tropical regions is very important to the global atmospheric circulation, which is extremely sensitive to vertical latent heat distribution. In South America, the convective activity responds to the Intraseasonal Oscillation (IOS). This paper analyzes a disdrometer and a radar profiler data, installed in the Ji-Paraná airport, RO, Brazil, for the field experiment WETAMC/LBA & TRMM/LBA, during January and February of 1999. The microphysical analysis of wind regimes associated with IOS showed a large difference in type, size and microphysical processes of hydrometeor growth in each wind regime: easterly regimes had more turbulence and consequently convective precipitation formation, and westerly regimes had a more stratiform precipitation formation.

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