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Chapter and Conference Paper
Study of Liquefaction Potential at Jaigarh Port Using Standard Penetration Test Data and Consequences: A Case Study
Indian ports are rapidly expanding their infrastructures all along the coastlines. Many of the important ports are located in seismically active zones. The paper presents the study of liquefaction potential an...
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Article
Isotopic Classes of Transversals in Dihedral Group D2n, n Odd
In this paper, we determine the number of isotopic classes of transversals of a subgroup of order 2 in D2n (n is a positive odd integer greater than 1), where isotopism classes are formed with respect to the indu...
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Article
Ovoidal fibrations in \({\pmb {PG}}\varvec{(3,q)}, {\pmb {q}}\) even
Given a partition of a projective 3-space of odd cardinality by a set of ovoids, a line secant to one of the ovoids of the partition, and its polar relative to the symplectic polarity on the projective 3-space...
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Article
Thin air-spaced shear plate for testing laser beam collimation and measurement of divergence of laser beams
A thin air-spaced shear plate is devised for obtaining a lateral shear of fraction of a millimeter. The thin air-spaced shear plate is found to be useful for directly measuring the radius of curvatures of las...
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Article
Spatial Distribution, Population Structure and Neighbour Relation of Trewia nudiflora within Forested Vegetation of North-Eastern U.P., India
Trewia nudiflora Linn. (Euphorbiaceae) is a soft wooded, fast growing multipurpose dioecious tree which grows within the moist semi-evergreen tropical forests of north-eastern Uttar Pradesh. Its spatial distribut...
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Article
On the number of isomorphism classes of transversals
In this paper we prove that there does not exist a subgroup H of a finite group G such that the number of isomorphism classes of normalized right transversals of H in G is four.
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Article
Multiplicities of simple modules in the Sp(4, q)-permutation module on P(3, q), q even
In this paper we shall determine the multiplicities of simple modules in characteristic 2 in the Sp(4, q)-permutation module on projective 3-space P(3, q), q = 2 n .
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Article
A critical angle refractometer for heavy water analysis
An indigenous design and fabrication of a critical angle refractometer is presented for measuring the percentage purity of heavy water. The paper describes the optical design of a critical angle prism used in ...
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Article
Structure of a code related to Sp(4, q), q even
We determine the socle and the radical series of the binary code associated with a finite regular generalized quadrangle of even order, considered as a module for the commutator of each of the orthogonal subgr...
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Article
A comparative performance evaluation of micro-Raman spectrograph using holographic notch filter and dielectric filter
An indigenously designed and developed micro-Raman spectrograph, consisting of a diode-pumped solid-state green laser for the excitation of Raman scattering, a Raman imaging microscope, CCD as a detector and a...
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Article
Testing of Concave Cylindrical Mirrors, Positive Cylindrical Lenses and Elliptical Cylinder Using a Low Frequency Linear Grating
An application of equidistant low frequency grating for testing of concave cylindrical mirrors and positive cylindrical lenses is described in this paper. The equipments needed for the testing of cylindrical m...
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Article
Transversals in non-discrete groups
The concept of ‘topological right transversal’ is introduced to study right transversals in topological groups. Given any right quasigroupS with a Tychonoff topologyT, it is proved that there exists a Hausdorff t...
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Article
A Simple Method of Calibration for Multichannel Spectrograph Using Charge-Coupled Device (CCD) as a Detector for Raman Spectroscopy
A wavelength calibration procedure has been devised for measuring the wavelength in the multichannel spectrograph using a single wavelength of radiation for calibration which can be obtained from commonly avai...
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Article
Theory of a Holographic Lens With a High Efficiency
A two element holographic lens is proposed for obtaining high efficiency in a holographic lens. The two element holographic lens is made up of an off-axis holographic lens and a plane holographic grating. The ...
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Article
Design, Development and Performance Evaluation of a High Resolution VUV Spectrometer at Indus-I Synchrotron Source
An indigenous design, fabrication and performance evaluation of a vacuum ultraviolet (VUV) spectrometer are described for carrying out spectroscopic research of atomic and molecular gases and vapours using Ind...
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Article
Plant diversity in managed sal (Shorea robusta Gaertn.) forests of Gorakhpur, India: species composition, regeneration and conservation
The sal (Shorea robusta) forest vegetation of Sohagibarawa Wildlife Sanctuary, Gorakhpur, India was analysed to assess plant diversity, regeneration pattern and the status of species conservation. A total of 208 ...
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Article
Large Shear Plate Interferometer
The design and fabrication of a large shear plate is presented to obtain a large shear. The shear plate consists of two glass plates separated with a large air gap. The two glass plates are held rigidly with t...
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Article
A Note on a Set of Wedge Plates for Laser Beam Collimation Testing
A sei of wedge plates required for selling up lateral shearing interferometer for laser beam collimation testing of various apertures has been suggested in order to obtain maximum sensitivity in the detection ...
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Article
Measurement of Radius of Curvature of Cylindrical Surfaces
Methods for measuring radius of curvature of a cylindrical surface are described. Based on the above methods a cylindrometer has been designed, fabricated and used for measuring radius of curvature of cylindri...
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Article
Simple Method for Measuring Long Radius of Curvature of Metal Cylindrical Surface
This paper describes a simple method of measuring long radius of curvature of a cylindrical surface made of metal. The method is useful for measuring the radius of curvature of both convex and concave surfaces...
