Results 21 to 30 of about 647,771 (267)

LIMITATIONS IN THE AIRSPACE SOVEREIGNTY OF STATES IN CONNECTION WITH SPACE ACTIVITY

Security and Defence Quarterly, 2018
The launch of the Soviet Sputnik in 1957 resulted in the emergence of two legal concepts concerning spacefl ight. The first of them concerned harmless passage through airspace subjected to the sovereignty of states, the second - recognition that at the ...
Małgorzata Polkowska
doaj   +1 more source

Interface character distributions in WC/Co cemented carbide

Cailiao gongcheng
Electron backscatter diffraction， five parameter analysis， overlap-pole-figure analysis and near coincident site analysis were used to investigate the interface character distributions of WC/WC grain boundaries and WC/Co phase boundaries in WC/Co ...
YU Shunshi, CHEN Song, LI Guanghui, LI Hui, LIN Yan, LI Hongfeng, DAI Siyuan, WU Tizhen, WANG Weiguo   +8 more
doaj   +1 more source

Study of Zn6Al6Ag Alloy Application in Ultrasonic Soldering of Al₂O₃–(Al/Al₂O₃) Joints

Metals, 2020
The aim of this research is to characterize the soldering alloy Zn6Al6Ag, and to study the ultrasonic soldering of an Al2O3/metal−ceramic composite (Al/Al2O3).
Roman Kolenak, Igor Kostolny, Jaromir Drapala, Paulina Babincova, Matej Pasak   +4 more
doaj   +1 more source

Effect of step-flow modulation on the large-size single crystal diamond through mosaic growth

Functional Diamond, 2023
In this paper, large-size single crystal diamond is grown by microwave plasma chemical vapor deposition using mosaic technique. The effects of the step-flow modulation on the surface morphology and crystal quality of epitaxial single crystal diamond ...
Genzhuang Li, Dongshuai Li, Caoyuan Mu, Qiliang Wang, Xianyi Lv, Liuan Li, Guangtian Zou   +6 more
doaj   +1 more source

Redefinisi “Perbatasan dan Keamanan” di Asia Tenggara (Sebuah Paradigma untuk Ketahanan Nasional)

JSP: Jurnal Ilmu Sosial dan Ilmu Politik, 2011
This article intends to examine the dynamics of "border and security" in Southeast Asia through the social history approach. ASEAN members have used the concept of ASEAN Community by 2015 as a new way of building community identity of Southeast Asia ...
Kamaruzzaman Bustamam-Ahmad
doaj   +1 more source

Spatial updating in virtual reality for reproducing object locations in vista space—Boundaries, landmarks, and idiothetic cues

Frontiers in Psychology, 2023
Keeping track of locations across self-motion is possible by continuously updating spatial representations or by encoding and later instantaneously retrieving spatial representations.
Zhanna Borodaeva, Sven Winkler, Jennifer Brade, Philipp Klimant, Georg Jahn   +4 more
doaj   +1 more source

S-band and X-band Radar Observation Characteristics of EF2 Tornado at Qingyuan of Baoding in 2021

应用气象学报
Using multiple observations such as S-band radar (SPOL) in Shijiazhuang, X-band phased array radar (XPAR) in Xiong'an, and ground-based encrypted automatic stations, detection features and evolutions of EF2 tornado at Donglü Village, Qingyuan District of
Chen Xuejiao, Hua Jiajia, Pei Yujie, Wang Zhenchao, Liu Shu, Liu Shujun, Wang Fuxia   +6 more
doaj   +1 more source

Sociodemographic Factors Associated With Later Stage at Diagnosis of Pediatric Germ Cell Tumors: A Report From Children's Oncology Group Registries ACCRN07 and APEC14B1

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Germ cell tumors (GCTs) often arise in the ovaries and testes (extracranial) but can also develop in the brain (intracranial). We examined the relationship of individual, family, and community‐level socioeconomic status (SES) with stage of disease at diagnosis in a cohort of pediatric patients with GCT from Children's Oncology Group
Heydon K. Kaddas, Judy Y. Ou, Todd Alonzo, Logan G. Spector, Negar Fallahazad, Emily Owens, Anne C. Kirchhoff, Adam L. Green   +7 more
wiley   +1 more source

Natural Killer Cells in Paediatric Soft Tissue Sarcomas: A Systematic Review

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Paediatric soft tissue sarcomas (pSTS) are a rare and heterogeneous group of malignant tumours arising in tissues of mesenchymal origin. The role of natural killer (NK) cells in pSTS remains poorly understood, with evidence fragmented across small preclinical studies and early‐phase clinical trials.
Raya Dean, Lara V. Graham, Christina Putnam, Rosa Gomes Alves Martins, Daniel T. Harding, Tim J. Underwood, Zoë S. Walters, Matthew D. Blunt   +7 more
wiley   +1 more source

Diagnosis of a Regional Thundersnow in Beijing, Tianjin and Hebei in February 2024

应用气象学报
The generation mechanism of extreme snowfall and convective snowfall in Beijing-Tianjin-Hebei region of China from 20 February to 21 February in 2024 are analyzed with high-resolution observations and the fifth-generation European Centre for Medium-Range
Suo Chunnan, Yan Chunwang, Chen Junming, Hua Jiajia, Ma Fenglian, Ji Ce, Sun Mengmeng   +6 more
doaj   +1 more source