Rdx
Mostrando 1-12 de 65 artigos, teses e dissertações.
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1. A New Energetic Complex: Synthesis, Structure, and Combustion Catalysis Performance
The potential of tetrazole-based ligands for forming energetic complexes applied in pyrotechnics and propellants is demonstrated with the use of 5,5’-(1,3-phenylene)bis(1H-tetrazole) (H2BTB) to generate an energetic complex with high energy. A new energetic complex of PbII-tetrazolate, [Pb2(BTB)2(H2O)8]·5H2O (1), was synthesized and structurally character
J. Braz. Chem. Soc.. Publicado em: 2020-08
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2. Evaluation of Filler Effects on the Dynamic Mechanical Behavior of HTPB-Elastomer Used as Binder in Exemplary Composite Formulations
ABSTRACT: This study aims to evaluate the dynamic mechanical properties of a binder, used in composite propellants, with increasing amount of different solid fillers. Dynamic Mechanical Analysis (DMA) is performed to determine the region of glass-rubber transition temperature (Tg). Further parameters were obtained from the description of the loss factor curv
J. Aerosp. Technol. Manag.. Publicado em: 2017-09
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3. Slow Cook-Off Simulation of PBX Based on RDX
ABSTRACT: Cook-off tests are commonly used to assess thermal behaviour of energetic materials under external thermal stimuli. Numerical simulation became a powerful tool to reduce the costs with experimental tests. However, numerical simulations are not able to predict the violence of thermal response, but instead accurately reproduce radial heat flow in the
J. Aerosp. Technol. Manag.. Publicado em: 2017-06
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4. GENETIC MUTATIONS AFFECTING THE FIRST LINE ERADICATION THERAPY OF Helicobacter pylori-INFECTED EGYPTIAN PATIENTS
SUMMARY Introduction: Several genetic mutations affect the first-line triple therapy for Helicobacter pylori. We aimed to study the most common genetic mutations affecting the metronidazole and clarithromycin therapy for H. pylori-infected Egyptian patients. Patients and Methods: In our study, we included 100 successive dyspeptic patients scheduled for dia
Rev. Inst. Med. trop. S. Paulo. Publicado em: 08/12/2016
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5. Research on the Specific Heat Capacity of PBX Formulations Based on RDX
ABSTRACT The experimental results of specific heat capacity of 2 plastic bonded explosives formulations based on 1,3,5-trinitroperhydro-1,3,5-triazine, using differential scanning calorimetry thermal analysis, and the theoretical ones calculated with the specific heat capacity and mass fraction of individual compounds are compared for a temperature range bet
J. Aerosp. Technol. Manag.. Publicado em: 2016-09
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6. Computational study on structure and properties of new energetic material 3,7-bis(dinitromethylene)-2,4,6,8-tetranitro-2,4,6,8-tetraaza-bicyclo[3.3.0]octane
The IR spectrum, crystal structure, electronic structure, thermodynamic properties, heat of formation and detonation properties of a new polynitro heterocyclic energetic material 3,7-bis(dinitromethylene)-2,4,6,8-tetranitro-2,4,6,8-tetraazabicyclo[3.3.0]octane were investigated theoretically. The calculated results show that this compound has a centrosymmetr
Quím. Nova. Publicado em: 2016-05
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7. Histomorfometria do epitélio ruminal de cabritos 1/2 sangue Boer submetidos a dietas com tortas oriundas da produção do biodiesel
Objetivou-se determinar o melhor nível de inclusão e de substituição das tortas de dendê e amendoim, respectivamente, em dietas para cabritos 1/2 sangue Boer, por meio da avaliação histomorfométrica das papilas ruminais. Foram utilizados 40 cabritos 1/2 sangue Boer, para cada período experimental, machos, não castrados, com idade aproximada de trê
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2015-04
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8. Risk Assessment for Hexamine Nitration into RDX
ABSTRACT: Explosives are widely used in extraction of ores, melts and fuels and in the safe and economical demolition of structures. These applications demonstrate the value of explosives to society and the reason why they are manufactured worldwide despite the hazard of their preparation. Hence, this paper focuses on the manufactory of the military explosiv
J. Aerosp. Technol. Manag.. Publicado em: 2014-12
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9. Comportamento ingestivo e respostas fisiológicas de cabritos alimentados com dietas contendo torta de girassol oriunda da produção de biodiesel
Avaliou-se o efeito de dieta com torta de girassol, oriunda da produção de biodiesel, sobre o comportamento ingestivo e a resposta fisiológica de 32 cabritos ½ sangue Boer, não castrados, com peso médio inicial de 15,3±3,2kg e idade média de 135 dias. Utilizou-se delineamento inteiramente ao acaso, com quatro tratamentos 0; 8; 16 e 24% de inclusão d
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2012-10
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10. Estudo da compatibilidade de RDX e HMX com polímeros e materiais inertes.
A compatibilidade química de explosivos é estudada para avaliar potenciais riscos quando os mesmos são colocados em contato com outros materiais durante a produção, armazenamento e manuseio. Esta compatibilidade pode ser estudada por vários métodos, tais como DSC (Calorimetria Exploratória Diferencial), TG (Termogravimetria), Estabilidade química a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/07/2010
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11. Studies on compatibility of energetic materials by thermal methods
Abstract: The chemical compatibility of explosives, pyrotechnics and propellants with those materials is studied to evaluate potential hazards when in contact with other materials during production, storage and handling. Compatibility can be studied by several thermal methods as DSC (differential scanning calorimetry), TG (Thermogravimetry), VST (Vacuum stab
J. Aerosp. Technol. Manag.. Publicado em: 2010-04
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12. Estudo da compatibilidade de RDX e HMX com polímeros e materiais inertes.
A compatibilidade química de explosivos é estudada para avaliar potenciais riscos quando os mesmos são colocados em contato com outros materiais durante a produção, armazenamento e manuseio. Esta compatibilidade pode ser estudada por vários métodos, tais como DSC (Calorimetria Exploratória Diferencial), TG (Termogravimetria), Estabilidade química a
Publicado em: 2010