نتایج جستجو برای: suspended particulate materials spm
تعداد نتایج: 483306 فیلتر نتایج به سال:
This study investigates the capability of high and medium spatial resolution ocean color satellite data to monitor transport suspended particulate matter (SPM) along a continuum from river mouth plume. An existing switching algorithm combining use green, red near-infrared wavebands was improved retrieve SPM concentrations over very wide range (from 1 more than 1000 g.m−3) encountered such conti...
Activities of (137)Cs, (241)Am and (239,240)Pu were analyzed with special emphasis on better understanding of radionuclide transport from land via the Neman River estuaries to the Baltic Sea and behavior in the marine environment. Although activity concentrations of (137)Cs in water samples collected the Baltic Sea were almost 100 times higher as compared to the Curonian Lagoon, its activities ...
The suspension-feeding Manila clam Ruditapes philippinarum is a native species of the western Pacific that is now widely distributed around the globe because of its commercial importance. To determine the adaptive physiological responses to changing thermal and nutritional conditions, clearance, filtration, feces production, ammonium excretion, respiration rates, and scope for growth (SFG) were...
BACKGROUND The objective is to examine the association between AD and the daily number of medical consultations for pollinosis in Fukuoka City. METHODS We analyzed 65,488 daily medical consultations for pollinosis from 4 clinics in Fukuoka City from February to April, 1989-2012. Time-series analyses were performed to estimate the clinic-specific relative risk (RR) of clinical pollinosis assoc...
Population fluctuations are often driven by an interplay between intrinsic population processes and extrinsic environmental forcing. To investigate this interplay, we analyzed fluctuations in coastal phytoplankton concentration in relation to the tidal cycle. Time series of chlorophyll fluorescence, suspended particulate matter (SPM), salinity and temperature were obtained from an automated mea...
Surface water samples were collected from the San Francisco Bay estuary in September–October 2000 (low flow) and March 2001 (high flow). Total mercury (Hg) concentrations were measured in unfiltered, filter-passing (,0.45 mm), colloidal (1 kDa–0.45 mm), and dissolved (,1 kDa) fractions. Particulate Hg was the dominant phase (88 6 7%, n 5 29) in unfiltered water. Suspended particulate matter (SP...
Most of the studies dealing with seabed mapping from hyperspectral images have been carried out using airborne data although satellite sensors already or are planned to be launched for near future (hyperspectral imager coastal ocean (HICO) environmental and analysis program (ENMAP) BIODIVERSITY). The objective this study is evaluate benefit a BIODIVERSITY-like sensor determine bio-optical prope...
The brominated flame retardant hexabromocyclododecane (HBCD) was monitored in fish and sediment (from one lake) or suspended particulate matter (SPM; from five rivers) at European freshwater sites to study the effects of reduction measures implemented by HBCD producers and users in recent years. Bream (Abramis brama) were sampled annually between 2007 and 2013 in the rivers Götaälv/SE, Rhône/FR...
Heterotrophic activities on sinking particulate matter (SPM) play an important role in SPM fluxes in the ocean. To demonstrate regional differences in heterotrophic activities on SPM, we measured heterotrophic bacterial production (HBP) in seawater (HBP(SW)) and SPM (HBP(SPM)) as well as potential extracellular enzyme activity (EEA) in SPM on a transect along 155°E in the western North Pacific ...
Suspended membranes of two-dimensional (2D) materials are interest for many applications. Much their characterization relies on scanning probe microscopy (SPM) techniques such as atomic force (AFM) or tunneling (STM). Unlike rigid samples, the suspended atomically thin 2D are, however, flexible and do not remain mechanically undisturbed during SPM measurements. Local deformations can occur at l...
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