364 research outputs found
Prediction of Overpressure from Finite Volume Explosions
Tri-nitro toluene (TNT) equivalence is not a good criterion for evaluating the practically encounted nonideal blast waves during ignition and in explosion-safety problems. A theoretical model which shows the trends related to the effects of source volume and energy time release on blast wave strength is discussed. A slower energy release and a larger source volume are shown to be necessary to reduce the blast effects
A method of cleaning microscope slides for their repeated use in the examination of sputum for tubercle bacilli
The difficulty with which acid-fast bacilli are removed from glass slides has led several workers to recommend that only new slides should be used for the preparation of smears to demonstrate the presence of tubercle bacilli (Wilson and Miles, 1955; Baker, Silverton and Luckock, 1957; Cruickshank, 1960). This practice cannot easily be followed in many countries where microscope slides of good quality are expensive and often difficult to obtain.
The experiment reported here was under-taken to determine whether a modern method of cleaning, incorporating the use of a detergent, can remove the tubercle bacilli from glass slides on which they have been heat-fixed and stained
Linear and Nonlinear Optical Properties of Mn doped Benzimidazole Thin Films
In the present work, the Mn doped benzimidazole (BMZ) thin films were
prepared by simple chemical bath deposition technique. The material was
directly deposited as thin film on glass substrates and the metal concentration
in the solution was varied in weight percentage in order to investigate the
dopant effect on the properties of thin films. Similarly, the Mn doped BMZ
films were deposited in different solution temperature to study the effect of
deposition temperature on the properties of thin films. The PXRD and FT-IR
spectroscopy are used to study the structural and the presence of functional
groups in the BMZ medium. Depending upon the solution temperature, thickness of
the films varying from 0.6 to 1.2 {\mu}m and the optical transparency of the
samples increases with the increasing temperature up to 50 {\deg}C. Second
Harmonic Generation (SHG) efficiency of the films is measured for all the
films. Third order nonlinear optical properties of the films were analyzed
using Z-scan technique. The experimental results show that Mn doped BMZ films
exhibits saturation absorption and negative nonlinearity.Comment: This has been presented in DAE 58th Solid State Symposium held at
Thapar University, Patiala, Punjab, India. Will be published in AIP
conference proceedings soo
Ordered reduced set successive detector for low complexity, quasi-ML MIMO detection
An Ordered Reduced Set Successive Detector (RSSD) for the V-BLAST spatial multiplexing scheme that uses a general two-dimensional non-uniform set partitioning for different symbols. The detector provides improved diversity and SNR gains at reduced complexity compared to a uniform set partitioning based detector. The detector can be used to reduce the complexity, with a small tradeoff in performance. Further, it is possible to obtain a quasi-ML performance using the disclosed detector at a reduced, yet fixed, complexity
4-[(E)-(4-Methylphenyl)iminomethyl]phenol
In the title compound, C14H13NO, the two rings show significant deviation from coplanarity, with a dihedral angle between the two planes of 49.40 (5)°. The hydroxy group is involved in an intermolecular O—H⋯N hydrogen bond, forming an extended one-dimensional zigzag chain along (001)
4-Bromo-N-(4-hydroxybenzylidene)aniline
In the title compound, C13H10BrNO, the benzene ring planes are inclined at an angle of 48.85 (17)°, resulting in a nonplanar molecule. A characteristic of aromatic Schiff bases with N-aryl substituents is that the terminal phenyl rings are twisted relative to the HC=N plane. In this case, the HC=N unit makes dihedral angles of 11.1 (4) and 38.5 (3)° with the hydroxybenzene and bromobenzene rings, respectively. In the crystal, the molecules are linked by O—H⋯N hydrogen bonds to form infinite (C8) chains along the b axis
N-[4-(2-Morpholinoethoxy)phenyl]acetamide monohydrate
In the title compound, C14H20N2O3·H2O, the geometry about the morpholine N atom implies sp
3 hybridization. In the crystal, symmetry-related molecules are linked by intermolecular N—H⋯O, O—H⋯O and O—H⋯N hydrogen bonds, forming infinite chains along the b axis. The chain structure is further stabilized by intramolecular C—H⋯O interactions
Partial substitution of Wattle in E.I.tainning
This article does not have an abstract
3-(1H-Benzimidazol-2-yl)-2-chloro-8-methylquinoline
Two independent molecules of the title compound, C17H12ClN3, are present in the structure. The angle between the planes defined by the atoms of the benzimidazole unit and the quinoline unit are 45.2 (3) and 44.0 (3)°, indicating an essentially identical conformation for both molecules. Each of the independent molecules is linked with a symmetry equivalent by an intermolecular N—H⋯N hydrogen bond involving the two benzimidazole N atoms, to form chains in the crystallographic c direction
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