Results 21 to 30 of about 2,508,409 (309)

Research on Influence of Impact of Microparticles and Sewing Needles on Destruction of Solid Bodies

Engineering Transactions, 2014
Impact of powders and sewing needles accelerated by explosion on various obstacles has been studied. Formation of channels up to 100 particle diameters in length has been observed when corundum and tungsten powders impacts on steel and duralumin at ...
B. D. KHRISTOFOROV
doaj   +1 more source

الحركة الكشفية الليبية وأهداف التنمية المستدامة "دراسة حالة مفوضية طبرق للكشافة والمرشدات" [PDF]

Maǧallaẗ Kulliyyaẗ Al-ādāb Ǧāmiʿaẗ Būrsaʿīd, 2022
تهدف الدراسة الراهنة إلى محاولة التعرف على واقع دور مفوضية طبرق للكشافة والمرشدات في تحقيق أهداف التنمية المستدامة، وتنتمي إلى الدراسات الوصفية، وقد اعتمد فيها الباحث على منهج دراسة الحالة، وقام باستخدام دليل دراسة الحالة والمقابلات غير المقننة والملاحظة
محمد شحاتة عبدالنبي واصل
doaj   +1 more source

Exploring Nursing Students' Knowledge of Fall Risk Factors, Preventive Strategies, and the Obstacles across the Academic Level [PDF]

Journal of Bioscience and Applied Research
Background: Falling is the second leading cause of unintentional injury mortality. Nursing students who work closely with patients must be knowledgeable about fall risk and prevention.
Eman Hassan
doaj   +1 more source

Albanian Preschool Personnel’s Perceived Obstacles to Implementing Effective Inclusive Education

Frontiers in Education, 2021
Access to high-quality early education promotes the academic success of children with disabilities; however, they are often overlooked in mainstream programs that lack essential support services.
Zamira Hyseni Duraku, Genta Jahiu, Eglantina Likaj Shllaku, Loreta Boci, Hysnie Shtylla   +4 more
doaj   +1 more source

Optimization of Air Flow Pattern for Leakage of Ammonia Gas in a Refrigerator Room

Zhileng xuebao, 2021
To exhaust the ammonia gas released after the rupture of a low-pressure suction pipe of an ammonia refrigeration compressor, a computational fluid dynamics (CFD) method was used to numerically calculate the accident ventilation process and compare the ...
Zhang Qianru, Zhang Xu, Ye Wei, Zhao Wenxuan, Zhi Chengqiang, Huang Yixiang, Ma Jin   +6 more
doaj  

Collaborative learning practices: teacher and student perceived obstacles to effective student collaboration

, 2018
While the educational literature mentions several obstacles affecting the effectiveness of collaborative learning (CL), they have often been investigated through the perceptions of only one actor, either teachers or students.
H. Le, J. Janssen, T. Wubbels
semanticscholar   +1 more source

Perlindungan Hukum Terhadap Anak Perempuan Korban Kekerasan Seksual di PPA Polresta Banjarmasin

Muwazah, 2017
Violence against girls lately increasingly widespread, whether physical, psychological, and sexual. To provide services and protection against the girl child victims of crime, especially the crime of sexual violence, the police have established Women and
Ahmad Syaufi
doaj   +1 more source

Obstacles and opportunities in the functional analysis of extracellular vesicle RNA – an ISEV position paper

Journal of Extracellular Vesicles, 2017
The release of RNA-containing extracellular vesicles (EV) into the extracellular milieu has been demonstrated in a multitude of different in vitro cell systems and in a variety of body fluids.
B. Mateescu, Emma J. K. Kowal, B. W. van Balkom, S. Bartel, S. Bhattacharyya, E. Buzás, A. Buck, P. de Candia, F. W. Chow, Saumya Das, Tom A P Driedonks, Lola Fernández-Messina, Franziska Haderk, A. Hill, Jennifer C. Jones, Kendall R. Van Keuren-Jensen, C. Lai, Cecilia Lässer, I. Liegro, T. Lunavat, M. Lorenowicz, Sybren L. N. Maas, Imre Mäger, M. Mittelbrunn, S. Momma, Kamalika Mukherjee, M. Nawaz, D. Pegtel, M. Pfaffl, R. Schiffelers, H. Tahara, C. Théry, J. Tosar, M. Wauben, Kenneth W. Witwer, E. N. Nolte-‘t Hoen   +35 more
semanticscholar   +1 more source

Mean curvature flow with obstacles: existence, uniqueness and regularity of solutions [PDF]

, 2014
We show short time existence and uniqueness of $\C^{1,1}$ solutions to the mean curvature flow with obstacles, when the obstacles are of class $\C^{1,1}$.
Mercier, Gwenael, Novaga, Matteo
core   +2 more sources

Global path planning for autonomous ship: A hybrid approach of Fast Marching Square and velocity obstacles methods

Ocean Engineering, 2020
In this research, a hybrid approach for global path planning for Maritime Autonomous Surface Ship (MASS) is proposed, which generates the shortest path considering the collision risk and the proximity between path and obstacles.
Pengfei Chen, Yamin Huang, E. Papadimitriou, J. Mou, P. Gelder   +4 more
semanticscholar   +1 more source