Creators

A B C D E-F G H I J K L M N O P Q-R S T U V W X-Y Z

Agarwal, P.N.

	The effect of temperature and humidity on the susceptibility of flour beetles to insecticides Author : Perti, S.L.;Chadha, D.B;Dixit, R.S;Agarwal, P.N. Source : Defence Science Journal ; Vol:14(3) ; 1964 ; pp 271-276 Subject : 632.9 Pest Control Keywords : Flour beetles Abstract : The susceptibility of the flour beetle, Tribolium castaneum Herbst. to DDT and dieldrin was investigated at different controlled conditions of temperature and humidity . It was found that the susceptibility was influenced significantly by temperature though not by humidity. DDT exhibited negative temperature coefficient for dieldrin was positive. T. Castaneumwas found to be more susceptible to DDT to DDT at 20-25degree than at 30-35degree celcius whereas the insect was more susceptible to dieldrin at 30-35 degree celcius than at 20-25degree celcius.
	Preservative Treatment For Timbers For Ammunition Boxes Author : Bhandari, N.D.;Padmanabhan, T.S.A;Agarwal, P.N.;Raman, R.S. Source : Defence Science Journal ; Vol:14(1) ; 1964 ; pp 33-42 Subject : 577 Biochemistry Keywords : Water soluble preservatives;Preservative Treatment For Timbers Abstract : The efficacy of the 'hot and cold' bath process of treatment of 16 species of timbers used for manufacture of service ammunition boxes with water soluble 'fixed type preservatives has been investigated. The treatment involved immersion of timbers(pieces of size 20"5"3/4")in boiling water for 15 minutes followed by immersion in the cold solution of the preservatives (Ascu-A, Ascu-B and Celcure)for 30minutes and it gave in majority of cases good penetration and retention aimed at. The exceptions were the heart wood of Andaman paduak ,chaplash and white chuglam
	Microbial Deterioration of Tentage in Hot-Humid Region of Assam Author : Agarwal, P.N. ;Nigam, S.S.;Gupta, U.S.;Sahgal, D.D. Source : Defence Science Journal ; Vol:15(3) ; 1965 ; pp 225-228 Subject : 687 Textiles and Clothing Keywords : Predominantly ;Naphthenate Abstract : Cotton tents exposed in hot-humid region of Assam show heavy microbial attack predominantly copper tolerant fungi necessitating treatment with higher concentrations of copper naphthenate to prevent deterioration.
	Protective Treatment of Fire Pipe Hose Against Microbial Degradation Part II Author : Dayal, H.M.;Nigam, S.S.;Agarwal, P.N. Source : Defence Science Journal ; Vol:16(3) ; 1966 ; pp 191-192 Subject : 577 Biochemistry;579 MicroBiology Keywords : Microbial damage;Mystox LPL Abstract : Fire pipe hoses are liable to suffer heavy microbial damage under tropical conditions. Treatment with Mystox LPL 100% at 5% concentration has been found to confer effective protection.
	Protection of Service Tents Against weathering Degradation : Urea Formaldehyde and Copper Chrome Treatments Author : Misra, U.C. ;Singh, A.;Saijwani, Maya;Bhandari, N.D.;Agarwal, P.N. Source : Defence Science Journal ; Vol:15(1) ; 1965 ; pp 40-43 Subject : 551.5 Meteorology Keywords : Weathering Degradation ;Humid Climates;Kanpur and Bombay Abstract : It has been established by outdoor trials of service tents at Kanpur and Bombay representing hot- dry and hot humid climates respectively, that treatment of the basic tent fabric with ureaformaldehyde or copper chrome affords adequate protection against weathering degradation.
	Microbial Deterioration of Fire Pipe Hose-Part I Author : Dayal, H.M.;Nigam, S.S.;Agarwal, P.N.;Maheswari, K.L. Source : Defence Science Journal ; Vol:14(2) ; 1964 ; pp 151-156 Subject : 579 MicroBiology;577 Biochemistry Keywords : Penicillium;Memnoniella;Echinata ;Fire Pipe Hose Abstract : One species each of penicillium and memnoniella echinata isolated from deteriorated fire pipe hose has been found to be predominantly responsible for its degradation. Their degrative effect separately as well as in combination has been studied. This paper summarises the results of the studies on the microbial deterioration of fire pipe hose and describes the main types of fungi responsible for its degradation during storage.
	Incidence of Fungal attack on Aircraft Fuselage Author : Dayal, H.M.;Uniyal, B.P.;Agarwal, P.N. Source : Defence Science Journal ; Vol:18(4) ; 1968 ; pp 243-246 Subject : 629.7 Aeronautics;579 MicroBiology Keywords : Vampire Aircraft;TorulaSp;Fuselage Abstract : Incidence of fungal attack on the fuselage of a few Vampire aircraft has been observed. The fungus isolated from the infected regions has been tentatively indentified as TorulaSp. Laboratory experiments have revealed that within four weeks this fungus causes about 44 percent loss in the tensile strength of the brich plywood used in the manufacture of the fuselage of the aircraft.
	Evaluation of Efficacy of Melamine Treatment on Cotton Fabrics Author : Bhandari, N.D.;Singh, Amar;Agarwal, P.N. Source : Defence Science Journal ; Vol:18(2) ; 1968 ; pp 21-28 Subject : 687 Textiles and Clothing Keywords : Mercury;Copper;Nickel Naphthenate Abstract : Melamine resin treated cotton fabric was exposed to outdoor weathering for 12 months at Kanpur to study its efficacy against weathering. Along with this, fabric treated with (i) hydrated oxides of copper+manganese(ii) nickel naphthenate and (iii) urea formaldehyde resin, were also exposed to find out the most efficacious treatment of these. Pre monsoon exposure of the three sets commenced from 29th of April, May and June ' 65 respectively. Breaking strength and tear strength data for 12 months exposure have revealed that treatment with hydrated oxides of copper + manganese affords maximum protection to cotton fabrics against weathering degradation irrespective of the month of exposure. Urea formaldehyde resin and nickel naphthenate treatment are the next best. Melamine treatment is equally good as hydrated oxides of copper+manganese if the results are based on breaking strength alone but considering loss in tear strength it gave a poor performance. All the treatment have been found to afford protection against irradiation from mercury arc lamp (rich in ultra violet light). Melamine and urea formaldehyde resin treatments were found completely resistant to microbiological attack in soil burial.
	Production of Ergot Alkaloids by Fermentation Method Author : Rawal, T.N.;Ali, S.E.;Agarwal, P.N. Source : Defence Science Journal ; Vol:18(1) ; 1968 ; pp 37-40 Subject : 54 Chemistry;577 Biochemistry Keywords : Fungus;Claviceps Purpurea ;Ergot Alkaloids Abstract : Capacity of three strains of the fungus, Claviceps purpurea to produce ergot alkaloids from synthetic media has been investigated. Of the three strains studied, Claviceps purpurea received from Prairie Regional Laboratory, Saskatoon, Canada gave high yields of ergot alkaloids. The effect of different carbohydrates, nitrogen sources and precursors on the production of ergot alkaloids has been studied. Highest yield (2.287 gm/1) of the total alkaloids has been obtained with maltose as a carbohydrate source, ammonium succinate as a nitrogen source and tryptophan (500 mg/1) as a precursor.
	Insecticide susceptibility of cimex hemipterus Author : Perti, S.L.;Wal, Y.C. ;Damodar, P.;Agarwal, P.N. Source : Defence Science Journal ; Vol:14(4) ; 1964 ; pp 337-340 Subject : 632.9 Pest Control Keywords : Insecticide;Cimex hemipterus Abstract : The susceptibility of the bed bug, cimex hemiptelus fabricius, to certain synthetic contact insecticides, viz., DDT, lindane dieldrin, diazinon and malathion was investigated. The fifth nymphal stage of the insect was found to be more tolerant to insecticides than other nymphal instars or the adult bed bug.
	Insecticidal properties of the fungus trichoderma sp. Author : Agarwal, P.N. ;Paul, C.F. Source : Defence Science Journal ; Vol:13(4) ; 1963 ; pp 295-297 Subject : 632.9 Pest Control Keywords : Insecticidal activities ;Trichoderma against mosquito Abstract : The insecticidal activity of the petroleum ether of the fungus, Trichoderma Sp. has been investigated against the mosquito. Culex fatigans Wied. and the house fly, Musca nebulo Linn. The extract has been found to be toxic to mosquitoes but not to the house flies.
	Efficiency of Ethylene Dichloride and Carbon Tetrachloride Mixture for Fumigation of important Animal Feeds Author : Khalsa, H.G.;Misra, J.N.;Nigam, B.S.;Agarwal, P.N. Source : Defence Science Journal ; Vol:14(1) ; 1964 ; pp 65-70 Subject : 57 Biological Sciences Keywords : Animal feeds;Fumigation Abstract : It has been found that animal feeds like crushed barley, crushed gram and wheat bran can be effectively disinfested by fumigation with 3:1 mixture of ethylene dichloride and carbon tetrachloride at a dosage of 2.5 gallons per 1,000 cuft. The lowest average atmospheric temperatures, at which the fumigation for 48 hours and for 72 hours was found effective, were 28.6 and 24.15 degree celcius respectively. It was also found that the order of susceptibility of the three test insects, viz. Tribolium castaneum Herbst, Trogoderma granerium Everts and Latheticus oryzae Watrh and their various stages varied considerably. in all cases, adults and pupae were found to be more susceptible than larvae.
	The Effect of Temperature and Humidity on the Susceptibility of Flour Beetles to Organophosphorus Insecticides Author : Agarwal, P.N. ;Dixit, R.S.;Perti, S.L.;Chadha, D.B. Source : Defence Science Journal ; Vol:15(1) ; 1965 ; pp 44-47 Subject : 632.9 Pest Control Keywords : Insect ;Diazinon;Tribolium Castaneum Herbst Abstract : The effect of the temperature and humidity on the susceptibility of Tribolium castaneum Herbst. to malathion and diazinon, has been investigated. It has been found that temperature significantly influences the susceptibility of T. castaneum to malathion though not to diazinon. Humidity, however, influences the susceptibility if the insect to both insecticides.
	Mycological Evaluation of Water soluble Fixed Type Preservatives for Timbers Author : Nigam, S.S. ;Agarwal, P.N.;Sahgal, D.D.;Gupta, G.K. Source : Defence Science Journal ; Vol:22(4) ; 1972 ; pp 249-254 Subject : 655.3.066.25 Packaging Keywords : Acid cupric chromate ;Timbers;Mycological tests Abstract : Three water soluble fixed type preservatives viz., copper-chrome-arsenic composition, acid-cupric-chromate composition and copper-chrome-boric composition applied on thirteen types of timbers, were evaluated for their permanence-cum-toxicity by mycological tests. The data have been statistically analysed. The results have shown that, in general, copper-chrome-arsenic preservative is superior in performance amongst these preservatives. All the preservatives have, however, been found satisfactory in respect of specific types of timbers under leached and unleached conditions.
	Degradation of Woolen Fabric by the Fungus Ctenomyces species: Part-I Author : Bajpal, L.S.;Agarwal, P.N.;Puvathingal, J.M. Source : Defence Science Journal ; Vol:14(2) ; 1964 ; pp 145-150 Subject : 579 MicroBiology;687 Textiles and Clothing Keywords : Ctenomyces;Growth;Temperature Abstract : The influence of various factors, viz. temperature, pH and period of incubation on the growth of the fungus ctenomyces sp. and on its activity with regard to the degradation of serge white lining (woolen fabric) has been studied. The results indicate that the growth and activity of the organism were maximum at temperature near about 30 degree celsius. The variation in pH (from 2.3 to 7.0) of the medium does not seem to influence the growth and or activity of the organism. Increase in the period of incubation from 4 to 24 days steadily increased the growth and activity of the organism.
	Efficiency of Newer Insecticide DDVP as a Space Spray Author : Agarwal, P.N. ;Dixit, R.S.;Srivastava, A.P. Source : Defence Science Journal ; Vol:15(3) ; 1965 ; pp 221-224 Subject : 632.9 Pest Control Keywords : Mosquitoes ;Culex;Pyrethrins Abstract : The insecticide properties of DDVP in relation to pyrethrins was investigated as space spray against the houseflies, Musca nebulo linn. and the mosquitoes, culex fatigans wied. DDVP was found much superior to pyrethrins in its killing properties. The knockdown property of DDVP as compared to pyrethrins was poor especially against the mosquitoes.