Results 81 to 90 of about 1,322,842 (239)

Crash Behavior of DP800–DP1000 Advanced High‐Strength Steel’s Dissimilar Resistance Spot Welded Joints Under Quasi‐static and High Strain Rates

steel research international, EarlyView.
The high‐strain‐rate behavior of resistance spot‐welded DP800–DP1000 joints is investigated. Results show that microstructural gradients across BM–HAZ–FZ govern hardness, strain rate sensitivity, and failure modes. While strength increases with strain rate, energy absorption is controlled by ductility, with DP800–DP800 joints showing superior ...
Pankaj Shrivastava, Velaphi Msomi
wiley   +1 more source

Numerical modelling of hybrid rocket boundary layer combustion [PDF]

openL'obiettivo di questo elaborato è quello di modellare numericamente la combustione all’interno dello strato limite dei motori ibridi con il fine di determinare, oltre ai parametri classici della balistica interna, anche l’efficienza di impiego del ...
BUREL, ANDREA
core  

Large‐Scale Applications of Plasma Technologies: Progresses and Challenges

High Voltage, EarlyView.
ABSTRACT Plasma technologies convert electrical power into energetic electrons, ions, reactive species, radiation and heat, thereby breaking through the bottleneck of purely thermal or chemical routes and bringing impressive changes to our world. This roadmap reviews the progress and challenges of plasma technologies from a large‐scale and application ...
Pankaj Attri, Liuyang Bai, Dmitry Batomunkuev, Xueke Che, Guoxing Chen, Zhitong Chen, Wei Cui, Liguang Dou, Zhi Fang, Yangyang Fu, Fausto Gallucci, Yiming Guo, Bangdou Huang, Yinghong Li, Sirui Li, Hua Liang, Liangliang Lin, Dingxin Liu, Xiangyang Liu, Xinpei Lu, Ruonan Ma, Lanlan Nie, Guanghui Niu, Yuge Ouyang, Tao Shao, Jing Sun, Yong Tang, Xin Tu, Sergey P. Vashchenko, Hang Wang, Xianjie Wang, Anke Weidenkaff, Yun Wu, Haohan Xie, Shaojun Xu, Zongxian Yang, Fangli Yuan, Cheng Zhang, Hao Zhang, Jishen Zhang, Shuai Zhang, Yejian Zhang, Zhe Zhang, Zhibo Zhang, Peng Zhao, Shicheng Zhao, Linlin Zhong, Renwu Zhou, Zhenhua Zhou, Xi Zhu, Yifei Zhu, Haohua Zong   +51 more
wiley   +1 more source

Sino‐Mexican Encounters Before the ‘Diplomatic Opening’: Exhibition Diplomacy and Grassroots Friendship in the 1960s

History, EarlyView.
Abstract During the 1960s, Mexico's Institutional Revolutionary Party (PRI) embraced Chinese overtures for a commercial opening as consistent with its anti‐imperialist posture, thereby foreshadowing the diplomatic opening to China in 1972. Yet this professed ideological pluralism was eclipsed by an underlying allegiance to the United States' anti ...
YIXIN TIAN
wiley   +1 more source

Investigation of regression rate end-burning typed hybrid rocket motor

, 2023
Hybrid rocket motor has a critical weakness that impacts performance: low regression rate. Due to this, extensive investigation has been done on end-burning hybrid rocket motors to enhance the regression rate. Experimental works were conducted on the end-
Abdullah, Nur Azam, Nordin, Norhuda Hidayah, Azami, Muhammad Hanafi, Sabri, Muhammad Ezamuddin Ezzad   +3 more
core   +1 more source

Energetic Characterization of 3-D Printed Acrylonitrile Butadiene Styrene Fuels for Hybrid Rocket Propulsion Applications

Fire
Hybrid rocket technologies are gaining recognition as eco-friendly alternatives to traditional propulsion systems. Utah State University’s Propulsion Research Laboratory has developed a High-Performance Green Hybrid Propulsion (HPGHP) technology ...
Stephen A. Whitmore, Ryan J. Thibaudeau, Ava T. Wilkey   +2 more
doaj   +1 more source

DIFFERENTIATED INFRASTRUCTURAL CITIZENSHIP: Claims‐Making and the Limits to Transformative Urbanization in a Fast‐Growing Small City

International Journal of Urban and Regional Research, EarlyView.
Abstract This article develops the concept of differentiated infrastructural citizenship (DIC) to explain how infrastructural citizenship is materially mediated, socially differentiated, and unevenly exercised in a rapidly urbanizing small city. It advances scholarship on infrastructural citizenship and everyday claims‐making as political participation
Nidhi Subramanyam
wiley   +1 more source

Investigation of Performance Stability of a Nytrox Hybrid Rocket Propulsion System

Aerospace
Nitrous oxide is a highly suitable oxidizer for hybrid rockets due to its self-pressurizing properties, moderate cost, and high accessibility. However, its vapor pressure and density are highly dependent on ambient temperature, requiring careful ...
Shih-Sin Wei, Jui-Cheng Hsu, Hsi-Yu Tso, Jong-Shinn Wu   +3 more
doaj   +1 more source

THE TRANSCALAR POLITICS AND SPATIAL IMPLICATIONS OF INVESTMENTS IN SHOPPING MALLS IN AFRICAN CITIES: A Study of Accra's West Hills Mall, Ghana

International Journal of Urban and Regional Research, EarlyView.
Abstract A surge in the number of shopping malls across many African cities reflects capital's responses to the continent's growing middle class and deepening neoliberal globalization. This article develops an analysis of the transcalar nature of these urban investments using the case of the West Hills Mall (WHM) in the Greater Accra Metropolitan Area (
Rosina Sheburah Essien, George Owusu, Kofi Kekeli Amedzro, Musah Aziba Issah, Jennifer Robinson, John Spyropoulos   +5 more
wiley   +1 more source

Strengthening the resilience and adaptive capacity of societies at risk from hybrid threats [PDF]

, 2021
How would the civilian population of a specific country respond to significant disruptions caused by hybrid threats? This paper explores different response scenarios and considers what can be done to strengthen the resilience and adaptive capacities of a
de Coning, Cedric
core