6 resultados para Airborne H 2O DIAL
em Brock University, Canada
Resumo:
A photograph of Robert Bell (kneeling, front row, third left) with his airborne regiment in the Second World War. The date and location of the photo is unknown. This photograph was among those recovered from the attic of Iris Sloman Bell, of St. Catharines, in the 1980s and kept in the possession of her son, Rick Bell. The Bell- Sloman family is descended from former Black slaves from the United States.
Resumo:
In light of the fact that literature on toxicity of heavy metals in non-acidified
freshwater systems is sparse, this project was initiated to conduct an environmental
assessment of Lake Gibson. Chemistry of soils from adjacent areas and vineyards in the
region provide a comparative background database. Water quality determinations were used
to identify and highlight areas of environmental concern within the Lake Gibson watershed.
A Shelby Corer was used to obtain 66 sediment cores from Lake Gibson. These were
sectioned according to lithology and color to yield 298 samples. A suite of 122 soil samples
was collected in the region and vicinity of Lake Gibson. All were tested for metals and
some for Total Petroleum Hydrocarbons (TPH). Evaluation of the results leads to the
following conclusions:
1. Metal concentrations ofAI, Cd, Cu, Cr, Pb, Ni, Fe and Zn in soils from the Niagara
Region are well below background limits set by the Ministry of the Environment
and Energy (MOEE) for provincial soils.
2. There is a spatial and depth difference for some of the metals within the various
soils. The Cr, Ni and Pb contents of soils vary throughout the region (p
Resumo:
The x-ray crystal structure of thiamine hydroiodide,C1ZH18N40S12' has been determined. The unit cell parameters are a = 13.84 ± 0.03, o b = 7.44 ± 0.01, c = 20.24 ± 0.02 A, 8 = 120.52 ± 0.07°, space group P2/c, z = 4. A total of 1445 reflections having ,2 > 2o(F2), 26 < 40° were collected on a Picker four-circle diffractometer with MoKa radiation by the 26 scan technique. The structure was solved by the heavy atom method. The iodine and sulphur atoms were refined anisotropically; only the positional parameters were refined for the hydrogen atoms. Successive least squares cycles yielded an unweighted R factor of 0.054. The site of protonation of the pyrimidine ring is the nitrogen opposite the amino group. The overall structure conforms very closely to the structures of other related thiamine compounds. The bonding surrounding the iodine atoms is distorted tetrahedral. The iodine atoms make several contacts with surrounding atoms most of them at or near the van der Waal's distances A thiaminium tetrachlorocobaltate salt was produced whose molecular and crystal structure was j~dged to be isomorphous to thiaminium tetrachlorocadmate.
Resumo:
The relationships between vine water status, soil texture, and vine size were observed in four Niagara, Ontario Pinot noir vineyards in 2008 and 2009. The vineyards were divided into water status zones using geographic information systems (GIS) software to map the seasonal mean midday leaf water potential (,P), and dormant pruning shoot weights following the 2008 season. Fruit was harvested from all sentinel vines, bulked by water status zones and made into wine. Sensory analysis included a multidimensional sorting (MDS) task and descriptive analysis (DA) of the 2008 wines. Airborne multispectral images, with a spatial resolution of 38 cm, were captured four times in 2008 and three times in 2009, with the final flights around veraison. A semi-automatic process was developed to extract NDVI from the images, and a masking procedure was identified to create a vine-only NDVI image. 2008 and 2009 were cooler and wetter than mean years, and the range of water status zones was narrow. Yield per vine, vine size, anthocyanins and phenols were the least consistent variables. Divided by water status or vine size, there were no variables with differences between zones in all four vineyards in either year. Wines were not different between water status zones in any chemical analysis, and HPLC revealed that there were no differences in individual anthocyanins or phenolic compounds between water status zones within the vineyard sites. There were some notable correlations between vineyard and grape composition variables, and spatial trends were observed to be qualitatively related for many of the variables. The MDS task revealed that wines from each vineyard were more affected by random fermentation effects than water status effects. This was confirmed by the DA; there were no differences between wines from the water status zones within vineyard sites for any attribute. Remotely sensed NDVI (normalized difference vegetation index) correlated reasonably well with a number of grape composition variables, as well as soil type. Resampling to a lower spatial resolution did not appreciably affect the strength of correlations, and corresponded to the information contained in the masked images, while maintaining the range of values of NDVI. This study showed that in cool climates, there is the potential for using precision viticulture techniques to understand the variability in vineyards, but the variable weather presents a challenge for understanding the driving forces of that variability.
Resumo:
The focus of this study was to detennine whether soil texture and composition variables were related to vine water status and both yield components and grape composition, and whether multispectral high definition airborne imagery could be used to segregate zones in vineyards to target fruit of highest quality for premium winemaking. The study took place on a 10-ha commercial Riesling vineyard at Thirty Bench Winemakers, in Beamsville (Ontario). Results showed that Soil moisture and leaf'l' were temporally stable and related to berry composition and remotely-sensed data. Remote-sensing, through the calculation of vegetation indices, was particularly useful to predict vine vigor, yield, fruit maturity as well as berry monoterpene concentration; it could also clearly assist in making wines that are more representative ofthe cultivar used, and also wines that are a reflection of a specific terroir, since calculated vegetation indices were highly correlated to typical Riesling.
Resumo:
Brass Surveying Compass with a 6 1/2 inch diameter silvered brass dial signed E. and G.W. Blunt of New York. There is a fleur-de-lis at the north point and the outer needle ring is engraved 0-90 in four quadrants. There is an engraved central pattern, blue steel hand and brass lifter, shaped limbs and a brass dial cover. This belonged to Samuel DeVeaux Woodruff who was a Civil Engineer. It also belonged to R.D.W. Band who was also a Civil Engineer. Also, One 13 cm. brass spindle taper for the surveying compass, n.d