Autor: Pant, A. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Preparation and characterization of ultrafine RDX
Autorzy:: Pant, A.
Nandi, A. K.
Newale, S. P.
Gajbhiye, V. P.
Prasanth, H.
Pandey, R. K.
Tematy:: ultrafine RDX
drowning-out crystallization
BET surface area
SEM
mechanical and electrostatic spark sensitivity; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Powiązania:: https://bibliotekanauki.pl/articles/358126.pdf Link otwiera się w nowym oknie
Opis:: This paper describes the synthesis of ultrafine Hexogen (UF-RDX) of size <5μm by drowning-out crystallization. RDX was precipitated from acetone or dimethylformamide (DMF) solution by reducing the solvent power using either a miscible, non-aqueous antisolvent, n-hexane, or an aqueous antisolvent, water containing polyethylene glycol (PEG). Process parameters such as solvent/ antisolvent ratio, agitation, ultrasonication etc. were studied. UF-RDX was characterized for Brunauer-Emmett-Teller (BET) surface area, X-ray diffraction (XRD), Scanning Electron Microscope (SEM), Fourier Transform Infrared Spectroscopy (FT-IR), Differential Scanning Calorimetry (DSC) and sensitivity tests. In the case of the non-aqueous antisolvent, the precipitated RDX crystals were rod shaped of diameter <1 μm. For the aqueous antisolvent, oval shaped crystals (<5 μm) were precipitated. UF-RDX was found to be more sensitive to impact and less friction sensitive compared to production grade RDX (60-80 μm).
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Preparation of Nano Aluminium Powder (NAP) using a Thermal Plasma: Process Development and Characterization
Autorzy:: Pant, A.
Seth, T.
Raut, V. B.
Gajbhiye, V. P.
Newale, S. P.
Nandi, A. K.
Prasanth, H.
Pandey, R. K.
Tematy:: nano aluminium
thermal plasma
DC arc plasma
RF induction plasma
aluminium content
BET surface area
HR-TEM; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Powiązania:: https://bibliotekanauki.pl/articles/358835.pdf Link otwiera się w nowym oknie
Opis:: A bottom up approach for the preparation of Nano Aluminium Powder (NAP) using a Transferred Arc Thermal Plasma Reactor (TAPR) is described. The aluminium block is subjected to evaporation by the application of a thermal plasma. The aluminium vapour produced is rapidly quenched to room temperature resulting in crystallization of the aluminium vapour in nano-particulate form. Various process parameters, such as the plasma torch power, reactor pressure and plasma gas composition were optimized. This paper also describes the characterization of NAP by analytical methods, for the estimation of the Active Aluminium Content (AAC), Total Aluminium Content (TAC), XRD, bulk density, BET surface area, HR-TEM etc. The results are compared with those for samples prepared in other thermal plasma reactors, such as the DC Arc Plasma Reactor (DCAPR) and the RF Induction Thermal Plasma Reactor (RFITPR), and for commercially available NAP samples (ALEX, prepared by the EEW technique).
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Measurement of liquid holdup and axial dispersion in trickle bed reactors using radiotracer technique
Autorzy:: Pant, H.
Saroha, A.
Nigam, K.
Tematy:: axial dispersion model
holdup
mean residence time
Peclet number
residence time distribution
trickle-bed reactor; Pokaż więcej
Wydawca:: Instytut Chemii i Techniki Jądrowej
Powiązania:: https://bibliotekanauki.pl/articles/146732.pdf Link otwiera się w nowym oknie
Opis:: The holdup and axial dispersion of aqueous phase has been measured in trickle bed reactors as a function of liquid and gas flow rates using radioisotope tracer technique. Experiments were carried out in a glass column of inner diameter 15.2´10-2 m column for air-water system using three different types of packings i.e. non-porous glass beads, porous catalysts of tablet and extrudate shape. The range of liquid and gas flow rates used were 8.3´10-5-3.3´10-4 m3/s and 0-6.67´10-4 m3/s, respectively. Residence time distributions of liquid phase were measured and mean residence times were determined. The values of liquid holdup were calculated from the measured mean residence times. It was observed that liquid holdup increased with increase in liquid flow rates and was independent of increase in gas flow rates used in the study. Two-parameter axial dispersion model was used to simulate measured residence time distribution data and values of mean residence time and Peclet number were obtained. It was observed that values of Peclet number increases with increase in liquid flow rate for glass beads and tablets and remains almost constant for extrudates. The values of mean residence time obtained from model simulation were found to be in good agreement with the values measured experimentally.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Radiotracer investigation of a pulp and paper mill effl uent treatment plant
Autorzy:: Sarkar, M.
Sangal, V. K.
Bhunia, H.
Bajpai, P. K.
Pant, H. J.
Sharma, V. K.
Kumar, A.
Naithani, A. K.
Tematy:: aeration tank
secondary clarifier
residence time distributions
RTD
radiotracer
convolution; Pokaż więcej
Wydawca:: Instytut Chemii i Techniki Jądrowej
Powiązania:: https://bibliotekanauki.pl/articles/147197.pdf Link otwiera się w nowym oknie
Opis:: The pulp and paper industry is highly dependent on water for most of its processes, producing a significant amount of wastewater that should be treated to comply with environmental standards before its discharge into surface-water reservoirs. The wastewater generated primarily consists of substantial amounts of organic, inorganic, toxic and pathogenic compounds in addition to nutrients, which are treated in an effluent treatment plant that often combines primary, secondary, tertiary and advanced treatments. However, the treatment methods vary from industry to industry according to the process utilized. The effective performance of effluent treatment plants is crucial from both environmental and economic points of view. Radiotracer techniques can be effectively used to optimize performance and detect anomalies like dead zones, bypassing, channelling, etc. in wastewater treatment plants. Experiments on the distribution of residence time were performed on the aeration tank and secondary clarifier of a full-scale pulp and paper mill to study the flow behaviour as well as locate system anomalies and hence evaluate the performance of the treatment plants using the radiotracer I-131. The convolution method was applied to model the system with an imperfect impulse radiotracer input. The aeration tank was working efficiently in the absence of any dead zones or bypassing. Various hydrodynamic models available in the literature were applied on the aeration tank and secondary clarifier to obtain the hydraulic representation of the systems.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The Global Alliance for Infections in Surgery : defining a model for antimicrobial stewardship : results from an international cross-sectional survey
Autorzy:: Pereira, Nuno Rocha
Vareczkei, Andras
Lowman, Warren
Scudeller, Luigia
Dhingra, Sameer
Rodríguez-Baño, Jesús
Moore, Ernest E.
Demetrashvili, Zaza
Adesunkanmi, Abdulrashid K.
Bhangu, Aneel
Kenig, Jakub
Rems, Miran
Kumar, Anand
Chiara, Osvaldo
Al-Hasan, Majdi N.
Chandy, Sujith J.
Gomi, Harumi
Shelat, Vishalkumar
van Goor, Harry
Chichom-Mefire, Alain
Pereira, Bruno M.
Malama, Sydney
De Waele, Jan J.
Pant, Narayan D.
Pupelis, Guntars
Roberts, Jason
Hodonou, Adrien M.
Nestorovic, Milica D.
Zahar, Jean-Ralph
Nicolau, David P.
Shafiq, Nusrat
Poulakou, Garyphallia
Kiguba, Ronald
McFarlane, Michael E.
Gandhi, Chinmay
Munyika, Akutu
Duane, Therese M.
Khanna, Ashish
Dortet, Laurent
Karamarkovic, Aleksandar R.
Caínzos, Miguel A.
Rizoli, Sandro
Mertz, Dominik
Wagenlehner, Florian
Jusoh, Asri Che
Sanders, James
Koike, Kaoru
Catani, Marco
Isik, Arda
Sartelli, Massimo
Wechsler-Fördös, Agnes
Ulrych, Jan
Guerra Gronerth, Rosio I.
Bala, Miklosh
Kim, Hong B.
Sifri, Costi D.
Pulcini, Céline
Xiao, Yonghong
Griffiths, Ewen A.
Sawyer, Robert G.
Carlet, Jean
Rawson, Timothy M.
Brink, Adrian J.
Cherry-Bukowiec, Jill R.
Al-Dahir, Sara
Paiva, José-Artur
Liang, Stephen Y.
Ansaloni, Luca
Søreide, Kjetil
Augustin, Goran
May, Addison K.
Hardcastle, Timothy C.
Zuckerbraun, Brian
Memish, Ziad
Brecher, Stephen M.
Dorj, Gereltuya
Mishra, Shyam K.
Camacho-Ortiz, Adrian
Tessier, Jeffrey M.
Iskandar, Katia A.
Abu-Zidan, Fikri M.
Ghnnam, Wagih Mommtaz
Coccolini, Federico
Colak, Elif
Kozlovska, Iryna
Cornely, Oliver A.
Soto, Rodolfo
Talving, Peep
Elmangory, Mutasim M.
Ko, Wen-Chien
Napolitano, Lena
Pędziwiatr, Michał
Ordonez, Carlos A.
Lee, Jae G.
Maegele, Marc
Uraneus, Selman
Alis, Halil
Tumbarello, Mario
Goranovic, Tatjana
Marwah, Sanjay
Hecker, Andreas
Major, Piotr
Negoi, Ionut
Giamarellou, Helen
Li, Yousheng
Watkins, Richard R.
Catena, Fausto
Di Marzo, Francesco
Bouchra, Belefquih
Abbo, Lilian M.
Preller, Jacobus
Ferrada, Paula
Quiodettis, Martha
Kerschaever, Ivan
Kanj, Souha S.
Martinez Casas, Isidro
Kafil, Hossein S.
Mesina, Cristian
De Simone, Belinda
Siribumrungwong, Boonying
Ioannidis, Orestis
Latifi, Rifat
Manzano-Nunez, Ramiro
Pagani, Leonardo
Viale, Pierluigi
Gkiokas, Georgios
Barbadoro, Pamela
Foianini, J. Esteban
Maseda, Emilio
Ponce-de-Leon, Alfredo
Sakakushev, Boris
Di Saverio, Salomone
Santos, Natalia
Parreira, Jose G.
Zakrison, Tanya L.
Leppäniemi, Ari
Yuan, Kuo-Ching
Barie, Philip S.
Labricciosa, Francesco M.
Machain, Gustavo M.
Kaplan, Lewis J.
Marinis, Athanasios
Beltrán, Marcelo A.
Khamis, Faryal
Trung, Ngo tat
Lee, Young R.
Mylonakis, Eleftherios
Araujo da Silva, André R.
Cui, Yunfeng
Haidamus Monteiro, Julio C.
Omari, Abdelkarim H.
Sato, Norio
Zuidema, Wietse P.
Dogjani, Agron
Kapoor, Garima
de Souza, Hamilton P.
Enani, Mushira A.
Lagunes, Leonel
Alves, Carlos
Reis, Tarcisio
Scarpelini, Sandro
Khokha, Vladimir
Gachabayov, Mahir
Scoccia, Loredana
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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