Trace elements in the spring waters of Moscow

Author(s):  
A. V. Savenko ◽  
V. S. Savenko ◽  
O. S. Pokrovsky

Data on the content of major ions (Na+, K+, Mg2+, Ca2+, Cl–, SO42–, HCO3–) and dissolved trace elements (Rb, Cs, Be, Sr, Ba, B, Si, Pmin, V, Cr, Ge, As, Mo, W, Sb, Te, Mn, Fe, Co, Ni, Cu, Zn, Cd, Ag, Sn, Pb, Al, Ga, Ti, Zr, U) in the waters of 30 springs in Moscow during the winter low water period are presented. The geometric mean values and ranges of concentration of the studied components, as well as correlations between them, were established. The presence of hydrochemical anomalies of dissolved iron and manganese in the north-east of Moscow with an excess of maximum allowable concentration (MAC) for these elements was revealed, whereas in the rest of the city their concentration almost everywhere correspond to the natural background.

Antiquity ◽  
1976 ◽  
Vol 50 (200) ◽  
pp. 216-222
Author(s):  
Beatrice De Cardi

Ras a1 Khaimah is the most northerly of the seven states comprising the United Arab Emirates and its Ruler, H. H. Sheikh Saqr bin Mohammad al-Qasimi, is keenly interested in the history of the state and its people. Survey carried out there jointly with Dr D. B. Doe in 1968 had focused attention on the site of JuIfar which lies just north of the present town of Ras a1 Khaimah (de Cardi, 1971, 230-2). Julfar was in existence in Abbasid times and its importance as an entrep6t during the sixteenth and seventeenth centuries-the Portuguese Period-is reflected by the quantity and variety of imported wares to be found among the ruins of the city. Most of the sites discovered during the survey dated from that period but a group of cairns near Ghalilah and some long gabled graves in the Shimal area to the north-east of the date-groves behind Ras a1 Khaimah (map, FIG. I) clearly represented a more distant past.


Author(s):  
Sergey B. Kuklev ◽  
Vladimir A. Silkin ◽  
Valeriy K. Chasovnikov ◽  
Andrey G. Zatsepin ◽  
Larisa A. Pautova ◽  
...  

On June 7, 2018, a sub-mesoscale anticyclonic eddy induced by the wind (north-east) was registered on the shelf in the area of the city of Gelendzhik. With the help of field multidisciplinary expedition ship surveys, it was shown that this eddy exists in the layer above the seasonal thermocline. At the periphery of the eddy weak variability of hydrochemical parameters and quantitative indicators of phytoplankton were recorded. The result of the formation of such eddy structure was a shift in the structure of phytoplankton – the annual observed coccolithophores bloom was not registered.


2020 ◽  
Vol 8 (2) ◽  
pp. 13
Author(s):  
Ankita Pandey

Guwahati derives its name from the Assamese word “Guwa” means areca nut and “Haat” means market. However, the modern Guwahati had been known as the ancient Pragjyotishpura and was the capital of Assam under the Kamrupa kingdom. A beautiful city Guwahati is situated on the south bank of the river Bramhaputra. Moreover, It is known as the largest city in the Indian state of Assam and also the largest metropolis in North East India. It has also its importance as the gateway to the North- East India. Assamese and English are the spoken languages in Guwahati.  In 1667, the Mogul forces were defeated in the battle by the Ahom forces commanded by Lachut Barphukan. Thus, in a sense Guwahati became the bone of contention among the Ahoms, Kochas and the Moguls during the medieval period.  Guwahati the administrative headquarters of Lower Assam with a viceroy or Barbhukan was made by the Ahom king.  Since 1972 it has been the capital of Assam. The present paper will discuss the changes happened in Guwahati over the period of late 1970s till the present time. It will focus on the behavior of people, transformed temples, Panbazar of the city, river bank of Bramhaputra, old Fancy Bazaar, chaotic ways, festivals and seasons including a fifth man made season etc. It will also deal how over the years a city endowed with nature’s gifts and scenic views, has been changing as “a dirty city”. Furthermore, it will also present the insurgencies that have barged into the city. The occurrence of changes will be discussed through the perspective and point of view of Srutimala Duara as presented in her book Mindprints of Guwahati.


2010 ◽  
Vol 1 (1) ◽  
pp. 81 ◽  
Author(s):  
Rudy Ercek ◽  
Didier Viviers ◽  
Nadine Warzée

<p>The city of Itanos is situated in the North-East of Crete. Between 1994 and 2005, the French School of Archaeology at Athens (Efa) and the Center for Mediterranean Studies in Rethymnon carried out excavation campaigns during which a necropolis and an Archaic building have been explored by a team of the CReA. A very close collaboration between archeologists, engineers and computer graphic designers allowed the 3D reconstruction of these remains. The archeologist was able to directly verify his hypotheses during the reconstruction process. In summer 2007 and 2008, a 3D digitalization of Itanos was made in order to insert the 3D reconstructions into the actual landscape.</p>


2016 ◽  
Vol 16 (2) ◽  
pp. 597-617 ◽  
Author(s):  
M. F. Khan ◽  
M. T. Latif ◽  
W. H. Saw ◽  
N. Amil ◽  
M. S. M. Nadzir ◽  
...  

Abstract. The health implications of PM2.5 in the tropical region of Southeast Asia (SEA) are significant as PM2.5 can pose serious health concerns. PM2.5 concentration and sources here are strongly influenced by changes in the monsoon regime from the south-west quadrant to the north-east quadrant in the region. In this work, PM2.5 samples were collected at a semi-urban area using a high-volume air sampler at different seasons on 24 h basis. Analysis of trace elements and water-soluble ions was performed using inductively coupled plasma mass spectroscopy (ICP-MS) and ion chromatography (IC), respectively. Apportionment analysis of PM2.5 was carried out using the United States Environmental Protection Agency (US EPA) positive matrix factorization (PMF) 5.0 and a mass closure model. We quantitatively characterized the health risks posed to human populations through the inhalation of selected heavy metals in PM2.5. 48 % of the samples collected exceeded the World Health Organization (WHO) 24 h PM2.5 guideline but only 19 % of the samples exceeded 24 h US EPA National Ambient Air Quality Standard (NAAQS). The PM2.5 concentration was slightly higher during the north-east monsoon compared to south-west monsoon. The main trace metals identified were As, Pb, Cd, Ni, Mn, V, and Cr while the main ions were SO42−, NO3−, NH4+, and Na. The mass closure model identified four major sources of PM2.5 that account for 55 % of total mass balance. The four sources are mineral matter (MIN) (35 %), secondary inorganic aerosol (SIA) (11 %), sea salt (SS) (7 %), and trace elements (TE) (2 %). PMF 5.0 elucidated five potential sources: motor vehicle emissions coupled with biomass burning (31 %) were the most dominant, followed by marine/sulfate aerosol (20 %), coal burning (19 %), nitrate aerosol (17 %), and mineral/road dust (13 %). The hazard quotient (HQ) for four selected metals (Pb, As, Cd, and Ni) in PM2.5 mass was highest in PM2.5 mass from the coal burning source and least in PM2.5 mass originating from the mineral/road dust source. The main carcinogenic heavy metal of concern to health at the current location was As; the other heavy metals (Ni, Pb, and Cd) did not pose a significant cancer risk in PM2.5 mass concentration. Overall, the associated lifetime cancer risk posed by the exposure of hazardous metals in PM2.5 is 3–4 per 1 000 000 people at this location.


2017 ◽  
Vol 41 (1) ◽  
pp. 60-70 ◽  
Author(s):  
Enrico PIETROGRANDE ◽  
Alessandro DALLA CANEVA ◽  
Ignasi NAVÀS SALVADÓ

This work concerns Vicenza, a city located not far from Venice in the north-east corner of Italy, and it specifically refers to an area situated on the outskirts of the city’s urban fabric between the perimeter of its ancient walls and the banks of the Bacchiglione river, in the shadow of the abandoned monastery of St. Biagio. The idea of restoring that physically and socially degraded area of the city of Vicenza has long been the object of discussion on the part of local authorities. Once intimately linked to the city’s historic center, the area gradually lost its functional and social identity becoming first a parking lot and then equipped as a city warehouse. The intent to regenerate the area and the observation that the relationship between the city and its river is constantly refused, or delayed, lead to recognize in the long edge of the area a unique meeting opportunity which allows to repair the water-city association, recuperating rituals and connections from the past. The municipality is presently planning on pursuing a qualitative restoration of the area which will be used for social and cultural enrichment. The final part of the current work outlines some proposals that were developed during the Architectural and Urban Composition 2 course recently offered by the Department of Civil, Environmental and Architectural Engineering of the University of Padua (Italy).


1759 ◽  
Vol 51 ◽  
pp. 38-40

About four o’clock on Thursday afternoon, July 13th 1758. a short but severe thunder-storm, with lightning, fell upon the top of an house standing alone, and belonging to a common garden, on the causeway near Sandling's ferry, in the city of Norwich; struck off the tiles of the roof at the east end, to the space of a yard or two 5 burnt a very small hole in the middle of a lath, in piercing into the chamber, and then darted to the north-east; ript off the top of an old chair, without throwing it down; snapt the two heads of the bed-posts, rent the curtains, drove against the wall (the front of the house stands due north-east), forced out an upright of a window frame a yard long, three inches broad, and two thick; smote it in a right line into an opposite ditch, ten or twelve yards distant; then struck down on the wall of the chamber, paring off half a foot s breadth of its plaistered covering quite down to the floor, listed up a board of the floor, and leaving an hole of half an inch diameter, pierced thro’ by the side of the main beam into the kitchen, towards the west end of a pewter- shelf; traversed the whole shelf to the east, and melted superficially to the breadth of a shilling six pewter dishes, two plates, and a pewter bason, all standing touching one another: two of the dishes were thrown down, the rest not displaced.


2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Michele Matteazzi

Abstract This paper deals with the analysis of the ancient road network around the city of Padua, attempts to reconstruct its morphology and to define its genesis and development between the second Iron Age and Late Antiquity (6th/5th cent. BC to 6th cent. AD). The study follows a methodological approach that today we define as „archaeomorphological“, first proposed by E. Vion in the late 1980s. By applying this methodology to the Paduan territory, it was possible to identify a series of routes of probable ancient origin radially converging toward the center of Roman Patavium, and linking it to other urban centers in the region and to the minor centers located within its ager. The presence of Iron Age settlements along the path of many of these routes suggests that the development of such a road network likely begins in pre-Roman times, which also highlights the ancient strategic importance of Padua and its territory as a fundamental junction between the center and the North-East of the Italian peninsula. On the other hand, the Roman road network somehow survived into the Late Antiqueand Early Medieval times, always influencing the distribution of settlements and the orientation of churches, until it was for the greater part restored by the Commune of Padua over the 13th century.


Author(s):  
Константин Аркадьевич Холодилин ◽  
Леонид Эдуардович Лимонов

The city center is at the core of urban and housing economics. Many models crucially depend on it. In a market economy, the location of urban amenities, especially eating establishments, closely correlates with that of the city center and, more generally, with the Central Business District (CBD). In a centrally planned economy, the spatial distribution of those amenities is determined by the central planner and can differ significantly from a market-based distribution. Using the case of St. Petersburg (Russia), we investigate changes in the spatial distribution of eating establishments resulting from the transition from a market economy to a centrally planned one and then again to a market economy. In addition, we explore the shifts of the city center between 1895 and 2017 using eating establishments as a proxy. The spatial distribution is analyzed using a 2-D kernel density estimation. We find evidence for a substantial reduction and dispersion of eating establishments during the Soviet period. We also establish that after the October 1917 Revolution the city center of St. Petersburg moved several kilometers to the north-east.


2019 ◽  
Author(s):  
Sarah Luziani ◽  
Beta Paramita

Commercial buildings are buildings that spend a lot of energy. This is reinforced by the data that the city that has an expenditure center in Indonesia. To allow energy use can be solved by passive design in architecture. In this study, energy calculations will be carried out using the Autodesk Revit application where previously there was no discussion about energy use at the center using Autodesk Green Building Studio (GBS) analysis by comparing one building with the use of materials differently. The method used in this study is creating three scenarios. Where the scenario B-01 is using a lot of glass but given a double facade in the north, east and south, B-02 is little use of glass and no double skin façade, the B-03 many openings without façade double skin. Each scenario is simulated and results. From the results of Autodesk GBS discussion in the EUI category, Life Cycle Energy Use, Carbon Emissions, and also the Use of Electricity. From the comparison of some of the most optimal scenario categories in energy is scenario B-01. In the simulated Shopping Center building in Autodesk GBS, buildings with more use of glass and openings will be more efficient in energy use.


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