Hamid Shakoori Langeroodi, Abolfazl Semnani,
... of corresponding acids and alcohols, polyol ester of pentaeritritol–tetra–oleate (PETO) and diester of dioctyladipate (DOA), ...
Tópico(s): Biodiesel Production and Applications
2009 - Academic Journals | African Journal of Pure and Applied Chemistry
Manuel F. Valero, Jorge E. Pulido, Álvaro Ramírez, Zhengdong Cheng,
OIL MODIFIED BY TRANSESTERIFICATION WITH PENTAERYTHRITOL.Castor oil was reacted by transesterification with various percentages in mass of pentaerythritol to obtain different esters of pentaerythritol.Alternatively, glycerol was also used instead of pentaerythritol for the same reaction in order to establish comparative reference products.The products of the reactions were characterized by matrix-assisted laser desorption/ ionization time-of-flight mass spectroscopy in order to detect and quantify ( ...
Tópico(s): Biodiesel Production and Applications
2008 - Brazilian Chemical Society | Química Nova
Umi Kalthom Ahmad, Kee Heng Kiu,
... 6–dinitrotoluena (2,6–DNT), trinitrotoluena (TNT) dan pentaeritritol tetranitrat (PETN) berjaya dikesan daripada sampel air. SPME/ ...
Tópico(s): Forensic Fingerprint Detection Methods
2012 - Muhammadiyah University of Jakarta | Jurnal Teknologi
Yerson Durán, Christian Andrade, Armando Martínez, Tito Sánchez, Fernando De la Cruz Fernando De la Cruz, Pablo Ramírez,
Pentaerythritol tetranitrate (PETN) is the most energetic and recalcitrant detonating used in mining activity being that it has four nitro groups linked by ester bounds, also is considered a persistent organic pollutant in agreement with the Stockholm Convention. In this work the degradation efficiency of PETN by bacteria isolated from mining environments is evaluated. At first, strains that showed growth during three subcultures with PETN as unique source of nitrogen were selected. Before, we identified ...
Tópico(s): Analytical chemistry methods development
2013 - National University of San Marcos | Revista Peruana de Biología
The use of natural polymers as substitutes for synthetic polymers in the development of aggregating materials for the pentaerythritol tetranitrate (PETN), explosive is a poorly explored area, but with the ability to enable the development of new sustainable, more chemical friendly and economically, using as an alternative a renewable material like chitosan and its derivatives.
Tópico(s): Inorganic and Organometallic Chemistry
2019 - | Archives in Biomedical Engineering & Biotechnology
Francisco Javier Rodríguez Lozano,
Tópico(s): Analytical Methods in Pharmaceuticals
1981 - Mexican Chemical Society | Revista de la Sociedad Química de México
Carlos Ramos Emperador, L Supervielle Mesquida, Roberto Fernández Magrinat, M Rivero Varona, A Toruncha Chukram, E Felipe Perea,
Tópico(s): Pain Management and Treatment
1987 - Elsevier BV | Anais Brasileiros de Dermatologia
José C. S. Andrade, José C. C. da Silva Pinto, Márcio C. P. da Silva, Norma L. Eduardo, Teodoro Dias Junior e Tito Lívio M. Alves,
Tópico(s): Chemical Synthesis and Characterization
1986 - Brazilian Chemical Society | Química Nova
Luis Enrique Fuentes, S.J Rivera Pérez, Sergio Iván Navarro Martínez, Álvaro Ramírez García,
... isoforona diisocianato y aceite de ricino modificado con pentaeritritol y poliestireno entrecruzado con divinil benceno (DVB). Las ...
Tópico(s): biodegradable polymer synthesis and properties
2011 - Industrial University of Santander | Revista ION
Cihat HİLAL, Müşerref Önal, Mehmet Erman Mert,
Pentaerythritol tetranitrate (PETN, C5H8N4O12) is a relatively stable explosive nitrate ester molecule. It has been widely used in various military and public industrial productions. In this study, the solubility tendency of PETN in different organic solvents was investigated theoretically. Several physicochemical parameters of PETN such as density, detonation pressure, temperature, rate and products of detonation reaction were investigated using the B3LYP functional and basic set of polarization ...
Tópico(s): Chemical Reaction Mechanisms
2021 - Düzce University | Düzce Üniversitesi Bilim ve Teknoloji Dergisi
Produção Nacional
A. M. Faria, Carlos Henrique da Silva, O. Bianchi,
The auscultation of lung sounds is a technique frequently used in medicine for the diagnosis of diseases or disorders on the respiratory system. The conventional stethoscope is an instrument used for auscultation and its proper use requires practice and experience. This article presents the development of an electronic system for recording sounds coming from pulmonary auscultation, which is going to be recorded, analyzed and compared, through two types of auscultation. Signal acquisition and conditioning ...
Tópico(s): Academic Research in Diverse Fields
2022 - | Revista SODEBRAS
Álvaro Ramírez, Jorge E. Pulido, M. F. Valero, Jericho Cabrera, K. Navas, Jhonatan Hernandez, José A. Posada, Zhengdong Cheng,
... y polioles derivados por transesterificacion del aceite con pentaeritritol, y el almidon denominada suspension. La segunda, fue ...
Tópico(s): Lubricants and Their Additives
2006 - Industrial University of Santander | Revista ION
Manuel F. Valero, Juan S Paez, Laura Granados,
... reaccion de transesterificacion del aceite de higuerilla con pentaeritritol. Durante la sintesis al prepolimero de poliuretano se ...
Tópico(s): Polymer composites and self-healing
2016 - | Revista Latinoamericana de Metalurgia y Materiales/Revista Latinoamericana de Metalurgía y Materiales
... geciktirici olarak saponin (SP), amonyum polifosfat (APP) ve pentaeritritol (PER) kullanılmıştır. Üretimlerde odun unu %0-10, APP % ...
Tópico(s): Polymer composites and self-healing
2024 - Association of Food Technology, Turkey | Turkish Journal of Forestry | Türkiye Ormancılık Dergisi