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  • 1975-1979  (19)
  • 1965-1969  (4)
  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of organic chemistry 42 (1977), S. 3201-3203 
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of organic chemistry 43 (1978), S. 1379-1382 
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Plant and soil 26 (1967), S. 361-368 
    ISSN: 1573-5036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Nutritional studies on wheat were carried out on sandy loam soils of Lucknow for a period of three years. Plant analysis for nitrogen was carried out at various growth stages of wheat plant. The important conclusions emerging out of these studies are as follows: 1 Two peak periods of nitrogen efficiencyi.e., first at tillering and second at ear-initiation stage were observed. 2 Maximum uptake of nitrogen and protein content was noted in treatment where nitrogen at 56 kg N was applied with 44.8 kg P2O5 per hectare. 3 The rate of nitrogen uptake from seedling to tillering was about 45 per cent; from jointing to ear initiation 25 per cent, and 30 per cent upto grain-formation stages in wheat plant's life cycle. 4 Best recovery of nitrogen of 53 per cent was noted in treatment where 56 kg N + 44.8 kg P2O5 per hectare was applied.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Plant and soil 28 (1968), S. 422-430 
    ISSN: 1573-5036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Studies on the uptake of nitrogen and phosphorus were carried out in an early paddy variety N22 on a medium loam soil at Govt. Research Farm, Kanpur. Plant samples above soil surface were collected and analysed for the above mentioned nutrients. The salient results emerging out of these investigations are as under: 1. Only one period of nitrogen and phosphorus efficiency at tillering stage was observed. 2. Maximum uptake of nitrogen and phosphorus was noted in the treatment where nitrogen at 66 kg combined with phosphates at 44 kg per hectare was applied. 3. The rate of uptake of nitrogen from seedling to tillering was about 45 per cent, from jointing to ear initiation stage 35 and 20 per cent upto maturity, whereas in case of phosphorus about 70 per cent was taken upto panicle emergence. 4. Highest recovery of nitrogen (64.8 per cent) was noted where nitrogen at 66 kg with 44 kg P2O5; per ha was applied while best recovery of phosphorus was observed in treatment where 22 kg P2O5 combined with 66 kg N per ha was applied. 5. Best rentability of nitrogen was noticed in the treatment N44 P22 whereas N66 P22 treatment showed best rentability of phosphorus.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Plant and soil 52 (1979), S. 581-584 
    ISSN: 1573-5036
    Keywords: Barley ; Photosynthesis ; Protein ; Respiration ; Soil moisture stress ; Water use efficiency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The objective was to find the optimum range of water contents for inducing better growth, physiological efficiency and yield potential of barley plants (Hordeum vulgare L. var. K18). A pot culture experiment was conducted in the Division of Crop Physiology and Biochemistry Kanpur-2. The plants were subjected to various soil moisture stresses,i.e., 0.15, 0.30, 0.45, 0.60 and 0.75 atm tension throughout the crop growth period measured by irrometers. Plants maintained at 0.45 soil moisture tension required 19.07 litre of water and had the best water use efficiency (1765 mg dm/litre of water) which favourably influenced the leaf water balance (85.9%), plant growth as measured by plant height (85.4 cm) and tiller production (35.6) per hill, photosynthetic efficiency (2.185 mg CO2/g dm/h), grain number (722) and grain yield (33.7 g) per hill while plants irrigated at a tension greater than 0.45 SMT did not develop as well. However, protein and gluten percentage increased gradually with the subsequent increase in soil moisture tension. On the other hand respiration rate (2.090 mg CO2/g dm/hr) and leaf area (4375 cm2) were recorded to be the highest at 0.60 and 0.30 atm SMT respectively. Thus it is suggested that for reaping high harvest of barley crop, the physiological need of water (19.07 litre) in total of plant life should be made available through scheduled irrigation based on maintenance of plant at 0.45 SMT from seeding to maturity.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Experimental mechanics 18 (1978), S. 25-34 
    ISSN: 1741-2765
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Thermal tempering is widely used to manufacture safety glass for economic as well as for certain safety measures. Laboratory investigations of the tempering process and the resultant strengthening effect are generally limited to rectangular specimens. Results are, therefore, appropriate for this particular geometry. This paper describes a simple stress-state model of a tempered flat glass specimen. the model, developed using photoelastic equations to determine the three-dimensional stress components, was used to predict the transient birefringence in a rectangular glass specimen subjected to uniform and symmetrical heat-transfer conditions, at a temperature where glass behaves as a perfect elastic material with no stress relaxation within the experimental time. A method of determining the coefficient of heat-transfer rate was then developed based on the analysis of the transient birefringence. This technique uses the glass specimen as an optical transducer, and does not affect, in any way, the natural flow of heat by forced convection or contact cooling.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Experimental mechanics 18 (1978), S. 464-470 
    ISSN: 1741-2765
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Creep of columnar-grained ice, under uniaxial compressive force normal to the columns, is shown to be composed of an instantaneous elastic response followed by a delayed elastic and viscous deformation. Both the delayed elastic and viscous strains are shown to have equal activation energies. Thus, this ice can be considered as a thermorheologically simple material with a nonlinear stress dependence. A simple phenomenological relationship has been developed that can be used for further analysis of the creep compliance function presented in a normalized form.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 12 (1977), S. 557-562 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Optical methods have been developed for high temperature application in the determination of the basic quantities, E, Young's modulus and ν, Poisson's ratio. The methods are simple and the techniques are inexpensive. The methods presented have been tried on commercially available soda-lime-silica glass and consistent results were obtained.
    Type of Medium: Electronic Resource
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  • 9
    Publication Date: 1977-03-01
    Print ISSN: 0022-2461
    Electronic ISSN: 1573-4803
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
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  • 10
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