Search
227 articles for “elemental analysis”
-
Synthesis, Spectral and Magnetic Moment Studies of Mixed Ligand Complexes of Hydroxamic Acids with Potassium Hexathiocyanato Vanadium (II) Tetra Hydrate
Abstract: Preparation and characterization of several hydroxamic acids of 3,4,5-trimethoxy benzohydroxamic acids(TMBHA), N-phenyl–3,4,5-trimethoxy benzohydroxamic acid(PTMBHA), 3,4-dimethoxy benzohydroxamic acid(DMBHA) and N-phenyl-3,4-dimethoxy benzohydroxamic acid(PDMBHA) were prepared and reacted with potassium hexathiocynato vandate (II) K4[V(NCS)6].3H2O tetra hydrate. The mixed ligand complexes of hydroxamic acids characterized with the help of repeated melting point identification, by I.R. studies, magnetic moment, molar conductance’s and by elemental analysis (C, H and N). The geometry of complexes were found …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 2, Issue 2, 2016 Read article
-
SYNTHESIS AND CHARACTERIZATION OF MIXED LIGAND COMPLEXES OF HYDROXAMIC ACIDS WITH POTASSIUM HEXATHIOCYANATO CHROMIUM (III) TETRA HYDRATE
Abstract: Some hydroxamic acids eg.[L1= benzohydroxamic acids (BHA), L2= N-phenyl– benzohydroxamic acid (NPBHA), L3= pivaloyl benzohydroxamic acid (PHA) and L4=N-phenyl-pivaloyl benzohydroxamic acid (PPHA) prepared and reacted with L’=Potassium hexathiocynato chromium (III) tetra hydrate K3[Cr(SCN)6]4H2O.The mixed ligand complexes of hydroxamic acids characterized with the help of repeated melting point, by I.R. studies, magnetic moment, molar conductance and by elemental analysis(C,H and N).The stoichiometry of the complexes were found to be 1:2(M:L) molar …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 2, Issue 2, 2016 Read article
-
Anti-tubercular activity of dioxo molybdenum (VI) metal complexes of 2-((E)-(1,5-dimethyl-2-phenyl-3-((Z)-(quinoline-8-ylimino)methyl)-2,3-dihydro-1H-pyrazole-4-ylimino)methyl)phenol
Abstract: Dioxomolybdenum(VI) complexes tetradentate ligand 2-((E)-(1,5-dimethyl-2-phenyl-3-((Z)-(quinoline-8-ylimino)methyl)-2,3-dihydro-1H-pyrazole-4-ylimino)methyl)phenol was synthesized by conventional method The ligands and their MoO22+ complexes have been characterized on the basis of elemental analysis, electronic. I.R., 1H and 13C-NMR spectral method, by their spectral studies, octahedral geometry of the complex has been proposed. On evaluation of in-vitro antitubercular activity of the ligand and dioxo Mo(VI) metal complex found that complex is more potent antitubercular agent than ligand. Keywords: anti-tubercular …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 3, Issue 1, 2017 Read article
-
Effect of Opening Shapes and Sizes on the Gravity Dam
Abstract: Design of gravity dams is an important issue in dam engineering. Opening in the dam plays a vital role in the failure of the gravity dam. In the present work finite element analysis of the gravity dam for different opening shapes and sizes are studied. Koyna dam is considered for the analysis. Study of stress concentration and deformation generated in the dam is conducted in the present work. Two different …
Published in International Journal of Construction Engineering and Planning · Vol. 3, Issue 2, 2017 · pp. 1–8 Read article
-
Optimization of 3D Printed Two-wheeler Suspension System
Abstract: The suspension is the very important criteria of a two-wheeler in order to improve the comfort for the operator or rider of the two-wheeler. In most of the two-wheeler’s shock absorbers are used as a suspension system to smooth out or damp shock impulse and dissipate energy by use of spring’s compression and relaxation property. The system consists of a spring which allows the frame and vehicle intact while riding …
Published in International Journal of Analog Integrated Circuits · Vol. 4, Issue 2, 2018 · pp. 51–57 Read article
-
Synthesis and characterization of bi metallic Nanoparticles by 2-thiotic acid for selective growth of SWCNT
Abstract: Nanoparticles (NPs) are tiny materials having size ranges from 1 to 100 nm. They can be classified into different classes based on their properties, shapes or sizes. There are different types of NPs like men made NPs and Natural NPs but we are discussing about monometallic NPs and Bimetallic NPs. We deal with bimetallic NPs. NPs possess unique physical and chemical properties due to their high surface area and nanoscale …
Published in International Journal of Applied Nanotechnology · Vol. 4, Issue 2, 2018 · pp. 48–58 Read article
-
Grafting of Starch: Synthesis and Thermal Properties
Abstract: Starch chloroacetate (St.ClAc) as a macro-initiator was pre-synthesized with reaction of primary OH groups on powder starch and characterized. In this study, the graft copolymer of St.ClAc with the previously synthesized 2-(4-methoxyphenylamino)-2-oxoethyl methacrylate (MPAEMA) and N-cyclohexylmethacrylamide (NCMA) monomer was made by atom transfer radical polymerization method (ATRP). St.ClAc and its graft copolymers (St.ClAc-g-MPAEMA and St.ClAc-g-NCMA) were characterized by FT-IR spectra and elemental analysis. In addition, thermal stability of these new …
Published in International Journal of Applied Nanotechnology · Vol. 6, Issue 1, 2020 · pp. 23–29 Read article
-
Synthesis of 2-(2,3-dichlorophenyl)-5-(substituted)-1,3,4-Oxadiazole Microcrystals by Solvothermal Method and Assessment of in vitroAntibacterial with Docking and in vivo Larvicidal Efficiency with Comprehensive Toxicological Studies
Abstract: 2,5-Disubstituted 1,3,4-oxadiazole compounds are among the most beneficial organic molecules of biological importance. In the current research, a new series of 2-(2,3-dichlorophenyl)-5-(substituted)-1,3,4-oxadiazole compounds have been synthesized solvothermally from derivatives of2,3-dichloro-N'-(substituted)benzohydrazide and Chloramine-T as an oxidizing agent using autoclave with good yield. The obtained products are micro-sized (5µm–20µm) crystals confirmed through SEM. The structures of synthesized compounds were confirmed through IR, 1H-NMR, 13C-NMR, mass Spectroscopy, Elementary analysis. Molecular docking study shows …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 6, Issue 1, 2020 · pp. 29–44 Read article
-
Failure Prediction of Composite Lamina
Abstract: Composite materials are preferable in many applications of engineering than their metallic equivalent. These materials provide desirable characteristics and required properties for specific design and testing. In orthotropic fiber composites, the fiber orientation dictates the material properties, because the properties can be built into the laminate during fabrication. In this study, a composite laminate is tested with a specific configuration whether it would fail or survive under specific load. If …
Published in International Journal of Composite Materials and Matrices · Vol. 5, Issue 2, 2019 · pp. 27–36 Read article
-
Synthesis and Characterization of Poly(etherdiphenylene terephthalamide)-Metal Complexes in Heterogeneous Medium
Abstract: Condensation of terephthalic acid and 4,4ʹ-diaminodiphenyl ether resulted in aminoterminated oligomeric poly(etherdiphenylene terephthalamide) (PODTA) using phosphorylation technique. Schiff base complexes of this polyamide were synthesized with salicylaldehyde and 2-hydroxy-1-naphthaldehyde complexes of Co(II),Ni(II) and Cu(II). All the synthesized polyamide as well as Schiff’s base complexes were characterized by elemental analysis, IR spectroscopy and magnetic susceptibility measurements. Thermal stabilities of ligand and its various complexes were compared by thermogravimetric analysis. While, Co(II) …
Published in International Journal of Polymer Science and Engineering · Vol. 2, Issue 1, 2016 · pp. 13–19 Read article
-
Investigation On Behavior Of Cold Formed Steel In Beam Column Connections
Abstract: Cold form steel structures are used for numerous purposes in construction industry. An attempt has been made in this study to check the behavior of beam column connections by using self-tapered screw in cold form steel section theoretical, experimentally and analytically. Finally, the experimental results are compared with analytical results. This study aims at the following objective by test performed on cold formed steel section to check the behavior connections. …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 1, 2016 · pp. 66–70 Read article
-
Optimisation of Ratio of Center Distance of Adjacent Hole to Diameter of Pre-stressed Holes by FEA
Abstract: Residual compressive stress zone around a fastener hole is introduced by a process called pre-stressing. This is being done to reduce adverse effect of cyclic tensile stress and to restrict the fatigue crack growth due to material flaws or imperfect surfaces. The objective of this investigation is to optimize the inter-hole distance between adjacent cold expanded holes on a plate restricting the deformation of material between holes to the elastic …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 6, Issue 2, 2020 · pp. 40–48 Read article
-
Assumptions, Limitations and Applications of Bernoulli’s Equation
Abstract: The Euler-Bernoulli beam theory, also called “beam theory”, is a condensed version of the linearisotropic theory of elasticity and can be used to predict the load-carrying and deflection properties ofbeams. It was initially stated around the year 1750, but it was not widely used until the Eiffel Towerand the Ferris Wheel were built in the late 19th century. It immediately became an engineering pillarand a catalyst for the Second Industrial …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 8, Issue 1, 2022 · pp. 15–18 Read article
-
Nonlinear Pushover Analysis of RC Frame Considering SSI Effect: A Review
Abstract: It is the need of modern era to go for the safe, reliable and economic structure design with special reference to seismic response of the structure. The classical methods which are based on elastic analysis are not able to predict the structural behaviour under the seismic forces. On the other hand the Pushover Analysis (POA) gives more reliable results. The POA is a static –nonlinear analysis. In this method the …
Published in International Journal of Structural Engineering and Analysis · Vol. 6, Issue 2, 2020 · pp. 21–25 Read article
-
Preferences of Landscape Elements at Different Housing Typologies in Indian Context
Abstract: Abstract Landscape elements help in enhancing the health and well-being of the people along with creating pleasant housing environment. In India housing diverges to a great extent and existing typology of housing depending on its physical appearance, bye-laws, and socio-economic profile. This paper identifies the categories of landscape elements and classifies the housing typology by literature review. In this paper, primary data of 18housing colonies from six identified housing typologies …
Published in International Journal of Landscape Planning and Architecture · Vol. 1, Issue 2, 2015 · pp. 1–9 Read article
-
Design of Multistoryed Building Using STAAD Pro
Abstract: The chief aim of the current project is to analyze and design a multi-storeyed building [G +5 (3d frame)] using STAAD ProV8i. The design deals with the calculation of the load manually and analysis of the structure is done by STAAD Pro software. The method of design used by STAAD pro as per Indian code is Limit State Design. STAAD.Pro features a state-of-the-art user interface, visualization tools, with advanced finite …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 3, Issue 1, 2017 · pp. 7–16 Read article
-
Seepage and Slope Stability Analysis of Earthen Dam: A Case Study of Lebu Dam, Ethiopia
Abstract: Seepage and Slope stability are a matter of remarkable concern in the construction of earthen dams where the failure of slopes may incur a severe loss of life and damage to property. The most important factors that cause instability of slope and lead to failure are gravitational force, the force due to seepage of water, sudden lowering of water adjacent to a slope and force due to earthquake. This study …
Published in International Journal of Water Resources Engineering · Vol. 7, Issue 1, 2021 · pp. 52–70 Read article
-
A Review on Structural Analysis and Design of Highrise Structure using Transfer Floor
Abstract: The tremendous changed in Modern infrastructure over the last few decades in multistoried buildings contains a self-sufficient thought of architecture. The Structures constructed now a days will no longer possess same geometrical configuration on each floor rather than a varied range of configuration. The current architectural demand give rise to a structural element such as transfer Floor or transfer beam/girder. The provision made for transferring very large intensity loads to …
Published in International Journal of Structural Engineering and Analysis · Vol. 8, Issue 1, 2022 · pp. 1–4 Read article
-
Calculate the natural frequencies with Cracked for Hybrid Unidirectional Composite Plate
Abstract: A mathematical model was built by using ANSYS (2D, 3D) models and MATLAB to represent composite materials. The natural frequencies were calculated for type of composite plates with of boundary conditions clamped from each edge (CCCC). In the vibration analysis, the finite element and MATLAB results showed there was an increase in the first, second and third natural frequencies by increasing the volumetric fraction of the fiber.In the cracked plate, …
Published in International Journal of Composite Materials and Matrices · Vol. 6, Issue 1, 2020 · pp. 5–16 Read article
-
Analyze Effect Of Skew Angle On Performance of R.C Girder Bridge Deck
Abstract: Abstract - The performance of reinforced c oncrete (R.C) girder bridge decks is significantly influenced by geometric configurations, among which the skew angle plays a critical role. Skewed bridges are commonly employed to accommodate site constraints, road alignment, and river crossings, but they introduce complex stress distributions, torsional effects, and differential deflections compared to straight bridges. This study investigates the effect of varying skew angles on the structural behavior of …
Published in International Journal of Structural Engineering and Analysis · Vol. 12, Issue 1, 2026 Read article