Advanced Solar Polarimetry—Theory, Observation, and Instrumentation: The 20th NSO/Sacramento Peak Summer Workshop

2001 ◽  
Vol 113 (780) ◽  
pp. 260-261 ◽  
Author(s):  
Michael Sigwarth
Keyword(s):  
Sacramento Peak ◽  
Solar Polarimetry ◽  
Summer Workshop ◽  
Peak Summer

Hawaiian summer workshop in the teaching of science

1960 ◽  
Vol 44 (2) ◽  
pp. 130-134
Author(s):  
Jewell Garner
Keyword(s):  
Summer Workshop

Emphasis on the Public

2010 ◽  
Vol 32 (4) ◽  
pp. 62-68 ◽  
Author(s):  
Leondra N. Burchall
Keyword(s):  
Black Population ◽  
World Heritage ◽  
The Public ◽  
Value History ◽  
Summer Workshop

Abstract St. George's, Bermuda received World Heritage status in 2000, and today many of the island's majority Black population still don't know what that means. Is it because we aren't educating or marketing this ““achievement”” or do the peripheral voices and marginal communities view the designation as unimportant or an imposition? This case study examines the importance of examining the disparity in how we, and our public, interpret and value history. My job is to examine these acts of inclusion/exclusion and shift the balance with programs like ““Bringing History to Life,”” a student summer workshop series that uses different mediums to interrogate history.

scholarly journals Analyzing rainwater chemistry at the continental GAW station Nagpur

MAUSAM ◽  
2021 ◽  
Vol 57 (4) ◽  
pp. 653-662
Author(s):  
JAYANTA SARKAR ◽  
V. K. SONI ◽  
A. S. GADGIL ◽  
A. K. MUKHERJEE
Keyword(s):  
Acid Rain ◽  
Sea Water ◽  
Monsoon Season ◽  
Dust Particles ◽  
Rainwater Chemistry ◽  
Water Ph ◽  
Marine Influence ◽  
Relationship Of ◽  
Peak Summer ◽  
Basic Cations

lkj & bl 'kks/k i= esa 1981 ls 1996 rd dh vof/k esa ukxiqj esa gqbZ o"kkZ ds ikuh esa jklk;fud rRoksa dh miyC/krk dk v/;;u fd;k x;k gSA bl v/;;u ls ;g irk pyk gS fd ukxiqj esa o"kkZ _rq esa ckj&ckj xtZ ds lkFk vkus okys rwQkuksa ds dkj.k o"kkZ ds ikuh esa Na+ vkSj Cl- ds lkanz.kksa esa leqnz dk izHkko de gSA ;gk¡ ij ekulwu _rq ds vkxeu ls igys ds eghuksa esa vkSj iwjh ekulwu _rq ds nkSjku NO3&  esa cgqr  vf/kd lkanzrk fjdkWMZ dh xbZ gSA ekulwu _rq ds nkSjku K+ dks NksM+dj o"kkZ ds ikuh ds lHkh ?kVdksa dh vxLr rd lkanzrk de gksrh tkrh gSA rFkkfi] flracj esa lHkh ?kVdksa dh lkanzrk esa o`f} ikbZ xbZ gSA Cl- vkSj Na+ ds fu{ksi.k eku rVh; dsanzksa dh rqyuk esa dkQh de ik, x, gSaA SO4&2 ds fu{ksi.k ekuksa dh rqyuk     ;w- ,l- ,l- vkj- ds dqN Hkkxksa esa ik, x, ekuksa ls dh tk ldrh gSA o"kkZ ds ikuh ds fofHkUu ?kVdksa ds chp vuqikrksa dk v/;;u djus vkSj leqnz ds ikuh ds vuqikrksa ds lkFk mudh rqyuk djus ls irk pyk gS fd ukxiqj esa o"kkZ ds ikuh esa Na+ dh vf/kdrk dk dkj.k leqnz ds ikuh ds vykok vU; lzksr Hkh gSaA pH ekuksa esa cgqr vf/kd fofHkUurk ikbZ xbZ gSA ekulwu esa] twu ds ]ckn pH de gksrk tkrk gS vkSj flracj rd cgqr de gks tkrk gSA bldk dkj.k o"kkZ ds ikuh }kjk ewy dSVk;uksa dk i`Fkd djuk ekuk tk ldrk gSA vizSy vkSj ebZ ds lcls rst xehZ ds eghuksa esa pH dh vf/kd ek=k dk dkj.k okrkoj.k esa /kwy d.kksa dh ek=k] ftlesa eq[;r% ewy dSVk;u gksrs gSa] dks ekuk tk ldrk gSA ekulwu _rq ds izR;sd ekg ds pH ds v/;;u ls irk pyk gS fd twu vkSj tqykbZ esa o"kkZ dk Lo:i  lokZf/kd ekSfyd gS tcfd vxLr vkSj flracj esa ukxiqj esa vEyh; o"kkZ dh dqN ?kVuk,¡ ns[kh xbZ gSaA tc ekpZ vkSj fnlcaj ds nks eghuksa esa pH dk eku 5-0 ls uhps fxj tkrk gS rc vEyh; o"kkZ dh leL;k cgqr vf/kd fodV gksrh gSA ekulwu iwoZ _rq ds nkSjku mPp lapkydrk ekuksa dk dkj.k bl vof/k esa okrkoj.k esa /kwy d.kksa dh vf/kd lkanzrk dks ekuk tk ldrk gSA ?kVdksa vkSj o"kkZ ds chp  ds :Ik esa foijhr laca/k ik;k x;k gSA In this paper rainwater chemistry of Nagpur for the period 1981-1996, has been studied. The analysis reveals that at Nagpur rain water there is less marine influence on the concentrations of Na+ and Cl-. Pre-monsoon months, as well as the season as a whole, record higher NO3- concentration which could be attributed to frequent thunderstorm activities in this season. During monsoon months, concentration of all the constituents of rainwater, except K+, goes on decreasing till August. However, in September increase in concentration is observed for all the constituents. Deposition values of Cl- and Na+ are found to be quite low in comparison to that at coastal stations.   SO4-2 deposition value is comparable to the values reported in some parts of USSR. Study of ratios between various constituents and a comparison with sea water ratios reveals that rainwater at Nagpur gets enriched in terms of Na+ from other sources besides sea water. pH values exhibited large variation.  In monsoon, June onwards pH goes on decreasing and lowest value is obtained in September.  This could be attributed to the preferential removal of basic cations by rainwater.  In the peak summer of April and May higher values of pH could be attributed to the abundant prevalence of dust particles in the atmosphere chiefly consisting of basic cations. pH of individual months of monsoon season reveals that in June and July rainfall is predominantly basic in nature while in August and September some instances of acid rain has been observed at Nagpur. Acid rain problem seems to be more acute in the month of March and December when pH in these two months falls below 5.0. High conductivity values during pre-monsoon season could be attributed to higher dust concentrations in the atmosphere during this period. An inverse relationship of form Y = AR-B has been found between the constituents and rainfall.

Functional design of a swim basin in the Detroit River

1988 ◽  
Vol 15 (6) ◽  
pp. 1006-1014
Author(s):  
H. R. Patterson ◽  
N. K. Becker ◽  
J. A. McCorquodale
Keyword(s):  
Precast Concrete ◽  
Hydraulic Model ◽  
Fecal Coliforms ◽  
Functional Design ◽  
Detroit River ◽  
Design Concepts ◽  
Model Studies ◽  
Concrete Cylinders ◽  
Filter Water ◽  
Peak Summer

Many urban beaches on fresh water lakes and rivers face closure during peak summer periods due to dangerous concentrations of fecal coliforms and other waterborne contaminants. One such example is the Lake Erie Metro Park which is located approximately 22 km (14 miles) downriver of Detroit, Michigan, and Windsor, Ontario, at the mouth of the Detroit River.N.K. Becker & Associates Ltd. was retained in 1985 to research and develop a functional design for a swim basin that will be formed by cordoning off an area of the Detroit River with a breakwater. A unique feature of this breakwater is that it is being designed to filter water from the Detroit River to the extent required for safe swimming. When it is constructed in 1988, it will be capable of accommodating approximately 1500 swimmers.Extensive hydraulic model studies were carried out at the universities of Windsor and Michigan to research and develop a functional design for this facility. The methodology used to develop the design concepts for this swim basin as well as the results of the testing program are described in this paper. Key words: fecal coliforms, swim basin, sand filter, breakwater, hydraulic model, beach, circulation, waves, water deficit, precast concrete cylinders.

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