| || Dustfall at Jodhpur Part IV
Author : Dave, U.K. ;Bhati, O.P.
Source : Defence Science Journal ; Vol:21(1) ; 1971 ; pp 79-85
Subject : 551.58 Climatology;551.5 Meteorology
Keywords : Atmospheric Dustfall Collections
Abstract : Atmospheric dustfall collections were determined during the year 1996 and 1967 in a newly designed dustfall collector and in large aluminium pans. The water solubles and insolubles were determined.
| || A simple Apparatus for Measuring Evaporation Rate
Author : Bhati, O.P. ;Muralidharan, T.S.;Chaudhuri, J.C.
Source : Defence Science Journal ; Vol:15(1) ; 1965 ; pp 53-54
Subject : 54 Chemistry
Keywords : Spiral Tube ;Ripples or Waves
Abstract : A Simple Apparatus has been designed for evaporation rate from natural water surfaces under calm or windy conditions. A special feature of the apparatus is the provision of a spiral tube to damp the effect of ripples or waves.
| || Salinity and Toxicological Studies of Waters of Rajasthan Desert
Author : Bhutra, Mankanwar ;Rai, Sushila;Ghosh, P.K.;Tak, T.C.;Bhati, O.P.;Bhargava, T.N.;Gopal, R.
Source : Defence Science Journal ; Vol:31(2) ; 1981 ; pp 105-108
Subject : 579 MicroBiology
Keywords : Sulphate reducing bateria ;Guinea worm;Dissolved solids;Fluorosis;Water borne diseases
Abstract : Detailed studies on quality of ground waters of Western Rajasthan have been carried out by analysing about 1500 water samples for presence of total dissolved solids (TDS) and other normal chemical constituents. 109 ground water samples were tested for presence of 8 toxic substances viz. As, Ba, Cd, Cr/sup +6/, Pb, Se, Ag, and CN and F and NO/sub 3/. About 9 percent of the waters conform to the normal standards of drinking water i.e. contain less than 500 mg/l TDS. None of the water points has been found to be contaminated with toxic substances. However, fluoride and nitrate were present in all the samples. A survey of water-borne diseases, kidney diseases and fluorosis carried out to establish the possible correlation between prevailing diseases and dissolved solids in waters indicate that 82 percent of the reported cases are due to water-borne diseases. The guinea-worm (Dracunculus medinensis) has been found in the surface waters and sulphate reducing bacteria (Desulphovibrio desulphuricans) in the brackish water.
| || Chemical Stabilisation of Sand : Part II Construction and Studies of 50m X 4m Road
Author : Das, Ghanshyam ;Parihar, M.S.;Ghosh, P.K.;Singh, Inder;Bhati, J.;Singh, Jeevan;Bhati, O.P.;Singh, Y.P.;Gopal, R.
Source : Defence Science Journal ; Vol:31(4) ; 1981 ; pp 323-327
Subject : 624 Civil Engineering
Keywords : Sand composition ;Trafficability studies;Load bearing capacity;Silicate stabilised track;Sand bed
Abstract : An experimental track (50m X 4m) was constructed on a loose sand bed by using two chemical-sand composition containing either 9 per cent urea formaldehyde (UF) resin or 11 per cent sodium silicate binder (on solid content basis). The trafficability studies on 5-6 cm thick stabilised track was found to vary from 1625 to 1700 psi in UF stabilised track and from 1340 to 1460 psi in silicate stabilised track. The effect of resin, desert environmental conditions and trafficability studies showed cumulative loss of load bearing capacity from 1625-1700 to 645-1125 psi.
| || Dustfall at Jodhpur Part II. A New Design of a Dustfall Collector
Author : Chaudhuri, J.C.;Bhati, O.P.
Source : Defence Science Journal ; Vol:17(1) ; 1967 ; pp 23-26
Subject : 551.58 Climatology
Keywords : Evaporation Rate of Water;British Deposit Gauge;ASTM cylinder
Abstract : This paper describes a new design of Dustfall Collector specially suited to arid zone conditions encountered in Rajesthan and takes into cosideration high evaporation rate of water, whirlwind and strong gusts of wind , bird dropping, and security. It has been found more reliable/efficient than the British Deposit Gauge and more useful/dependable than be ASTM cylinder.
| || Dustfall at Jodhpur Part III
Author : Chaudhri, J.C.;Bhati, O.P.;Dave, U.K.
Source : Defence Science Journal ; Vol:18(2) ; 1968 ; pp 95-106
Subject : 551.58 Climatology
Keywords : Aluminium Pans;Dustfall Collector;Ionic
Abstract : Dustfall collections were continued for 1964 and 1965, in large aluminium pans. In 1965, the newly designed apparatus called "Dustfall Collector" was used in addition. The atmospheric deposits occurring during the period of storm and high wind were separately collected for each year. The water insolubles and water solubles were determined. SO/Sub4 and CO/Sub3 ions were found absent in all samples except that CO/Sub3 was present in only June and July samples of 1964.