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- 저자 : Inderpreet Singh (검색결과 5 건)
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Satvir Singh,B.S. Bajwa,Inderpreet Kaur 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.93 No.-
Uranium prevalence in water beyond WHO limit (30 mg/l) may pose potential chemical and radiologicaltoxicity which can cause severe health problems associated with kidney, brain, liver, heart, etc. Therefore,regular monitoring of uranium content and development of efficient remediation strategies for itsremoval from water resources has gained immense attention at global level. In the present work, zeoliticimidazolate frameworks (ZIFs) based on zinc (ZIF-8), cobalt (ZIF-67) and bimetallic zinc & cobalt (Zn,Co-ZIF) using 2-methylimidazole as organic linker, were developed following a rapid room temperaturesynthesis, characterised for their surface and functional features using X-ray diffraction, SEM-EDX, BETand FT-IR followed by their application as adsorbents for uranium extraction. ZIFs were found to performbest at optimum adsorption parameters: pH (5.0), adsorbent dose (0.4 g/l) and contact time (120 min). The maximum Langmuir adsorption capacity (mg/g) of three ZIFs follows the order as: ZIF-8 (781.0) > Zn,Co-ZIF (564.7) > ZIF-67 (409.1). Thermodynamic parameters confirmed the spontaneous and endother-mic nature of adsorption process. Three ZIFs exhibit high adsorption efficiency and regeneration abilitywere explored for their practical application as packing material in the columns used in water purifiersand found to serve as competent adsorbents for treatment of uranium contaminated groundwatersamples.
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Sanjeev Saini,Inderpreet Singh Ahuja,Vishal S. Sharma 한국정밀공학회 2012 International Journal of Precision Engineering and Vol. No.
In machining of parts, surface quality is one of the most specified customer requirements. Major indication of surface quality on machined parts is surface roughness. There are various machining parameters which have an effect on the surface roughness, but these effects have not been adequately quantified. In order for manufacturers to maximize their gains from utilizing finish hard turning, accurate predictive models for surface roughness and tool wear must be constructed. This paper utilizes response surface methodology (RSM) for modeling to predict surface roughness and tool wear for variety of cutting conditions in finish hard turning. The experimental data obtained from performed experiments in finish turning of hardened AISI H-11 steel have been utilized. Decrease in feed rate and increase in cutting speed resulted in significant increase in surface quality. However, increase in cutting speed also produced relatively higher tool wear. Also depth of cut did not significantly affect the tool wear and surface roughness.
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Radix mesiolingualis and radix distolingualis: a case report of a tooth with an unusual morphology
Gurudutt Nayak,Himanshu Aeran,Inderpreet Singh 대한치과보존학회 2016 Restorative Dentistry & Endodontics Vol.41 No.4
Variation in the root and canal morphology of the maxillary first molars is quite common. The most common configuration is 3 roots and 3 or 4 canals. Nonetheless, other possibilities still exist. The presence of an additional palatal root is rather uncommon and has been reported to have an incidence of 0.06 - 1.6% in varying populations studied. Whenever two palatal roots exist, one of them is the normal palatal root, the other is a supernumerary structure which can be located either mesiolingually (radix mesiolingualis) or distolingually (radix distolingualis). This case report describes successful endodontic treatment of a maxillary first molar with radix mesiolingualis and radix distolingualis. Identification of this variation was done through clinical examination along with the aid of multiangled radiographs, and an accurate assessment of this morphology was made with the help of a cone-beam computed tomography imaging. In addition to the literature review, this article also discusses the epidemiology, classifications, morphometric features, guidelines for diagnosis, and endodontic management of a maxillary first molar with extra-palatal root.
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Bonamali Pal,Rupinder Kaur,Inderpreet Singh Grover 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.33 No.-
This article highlights comparative adsorption behavior and photocatalytic activity of TiO2nanostructures (P25, nanorods and nanotubes) for degradation of eriochrome black-T dye (EBT)depending on their structural morphology and metal ions (Fe3+ and Pt4+) deposition. Enhancement inadsorption capacity (qmax) was observed due to impartment of extra positive charges by Fe3+ and Pt4+impregnation and follow the order, Pt4+–P25–TiO2 (400 mg/mg) > Fe3+–P25–TiO2 (344 mg/mg) > P25–TiO2 (248 mg/mg) > nanotubes (123 mg/mg) > nanorods (69 mg/mg). The Fe3+ and Pt4+ loaded TiO2improved dye adsorption and degradation rate of EBT undergoing complete minerization to CO2 underUV light irradiation.
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Radix mesiolingualis and radix distolingualis: a case report of a tooth with an unusual morphology
Nayak, Gurudutt,Aeran, Himanshu,Singh, Inderpreet The Korean Academy of Conservative Dentistry 2016 Restorative Dentistry & Endodontics Vol.41 No.4
Variation in the root and canal morphology of the maxillary first molars is quite common. The most common configuration is 3 roots and 3 or 4 canals. Nonetheless, other possibilities still exist. The presence of an additional palatal root is rather uncommon and has been reported to have an incidence of 0.06 - 1.6% in varying populations studied. Whenever two palatal roots exist, one of them is the normal palatal root, the other is a supernumerary structure which can be located either mesiolingually (radix mesiolingualis) or distolingually (radix distolingualis). This case report describes successful endodontic treatment of a maxillary first molar with radix mesiolingualis and radix distolingualis. Identification of this variation was done through clinical examination along with the aid of multiangled radiographs, and an accurate assessment of this morphology was made with the help of a cone-beam computed tomography imaging. In addition to the literature review, this article also discusses the epidemiology, classifications, morphometric features, guidelines for diagnosis, and endodontic management of a maxillary first molar with extra-palatal root.
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