Results 181 to 190 of about 2,443,749 (274)

Advances in Structural Reliability Analysis of Solid Propellant Grain: A Comprehensive Review. [PDF]

Polymers (Basel)
Tang C, Qiang H, Geng T, Wang X, Zhang F.   +4 more
europepmc   +1 more source

Theoretical characterization of mesoscopic structure of PBT propellant based on liquid film thickness. [PDF]

Sci Rep
Shen YW, Yang MF, Zhang HG, Huang LP, Xing SM, Zhang XR, Luo YM, Xu S, Wu XL.   +8 more
europepmc   +1 more source

Thermal Stability of Aliphatic and Semiaromatic Polyamides: Tailoring the Choice of Isothermal Aging Temperature by Using Kinetic Models of Degradation

Journal of Applied Polymer Science, EarlyView.
Thermogravimetric analysis was performed to study the degradation of aliphatic and semiaromatic polyamides intended for the electrical insulation of future electric aircraft. Using the TGA results, the Flynn and Wall method and Toop's model, the activation energies for the degradation processes were calculated, and kinetic models of the degradation ...
Julien Chedaille, Victor Henri, Pierre Henrard, Éric Dantras   +3 more
wiley   +1 more source

Preparation Technology, Reactivity and Applications of Nano-Aluminum in Explosives and Propellants: A Review. [PDF]

Nanomaterials (Basel)
Guo H, Zhang W, Pang W.
europepmc   +1 more source

Lagomorph cranial biomechanics and the functional significance of the unique fenestrated rostrum of leporids

The Anatomical Record, EarlyView.
Abstract The crania of leporid lagomorphs are uniquely fenestrated, including the posterior cranial bones and the lateral portion of the maxilla. The functional significance of the highly fenestrated rostrum has received considerably little attention, despite being absent in other mammalian herbivores with a long rostrum.
Amber P. Wood‐Bailey, Alana C. Sharp
wiley   +1 more source

Biochar-Based Single-Atom Cobalt Catalyst for Efficient Thermal Decomposition of Ammonium Perchlorate: Preparation, Performance and Mechanism. [PDF]

Int J Mol Sci
Liu Y, Tang X, Zhang B, Zhou Y, Li J, Zheng Z, Zhang Y, Huang Y, Huang C.   +8 more
europepmc   +1 more source

Morphological adaptations of cervical vertebrae in plunge‐diving sulids

The Anatomical Record, EarlyView.
Abstract Foraging strategy frequently drives morphological diversification in birds. The plunge‐diving behavior of certain species makes the functional and ecological trade‐offs of variation in cervical vertebrae an especially intriguing question. This study compares cervical vertebrae across five plunge‐diving species and two non‐plunge‐diving species,
Megan L. Vandenberg, Alissa Perez, John Michael Racy, Adam P. Summers, Ed Habtour, Bart Boom   +5 more
wiley   +1 more source

Research on Time-Dimension Expansion of HBP Model Based on Hydroxyl-Terminated Polybutadiene (HTPB) Propellant Slurry. [PDF]

Polymers (Basel)
Bai Y, Wang J, Feng Y, Cao P, Jiang X.
europepmc   +1 more source

Bricks, knots, and bodies: Material encounters and the affective making of masculinity

British Educational Research Journal, EarlyView.
Abstract This paper examines how creative research methods do not just capture boys' experiences of masculinity, but actively materialise them. Drawing on two arts‐based activities used in school‐based fieldwork (a mannequin‐based exercise with one participant and a Lego‐building workshop with a small peer group), the paper analyses how materials ...
Huw Berry‐Downs
wiley   +1 more source

Experimental Study on the Evolution of Mechanical Properties and Their Mechanisms in a HTPB Propellant Under Fatigue Loading. [PDF]

Polymers (Basel)
Feng F, Chen X, Xu J, Zeng Y, Huang W, Dong J.   +5 more
europepmc   +1 more source