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NUMERICAL EVALUATION OF THE BEHAVIOR OF A PLATE ON IMPACT WITH A RIGID PROJECTILE USING ELEMENT-FREE GALERKIN METHOD 用无单元伽辽金法数值计算刚性弹丸对板的冲击行为
Pub Date : 2022-09-01 DOI: 10.19062/2247-3173.2022.23.1
C. Adetu, A. Hadar, V. Năstăsescu, A. Adetu
The impact of the projectile-plate is a complex phenomenon that is analyzed through analytical methods, based on simplifying hypotheses. In addition to the use of empirical laws, these aspects of the projectile-plate interaction and the effects on the structure are studied using numerical methods. This article presents the numerical evaluation of the behavior of a monolithic plate on impact with a rigid projectile using element-free Galerkin method and is shown the evolution of the impact with its effects (deformation with perforation of the plate). Also, an analyze of the variation of the total energy of the plate, kinetic energy of the bullet and bullet velocity over time are presented.
弹丸板的冲击是一个复杂的现象,通过基于简化假设的分析方法进行分析。除了使用经验规律外,还使用数值方法研究了弹板相互作用的这些方面及其对结构的影响。本文采用无单元伽辽金法对刚性弹丸冲击整体式板的性能进行了数值计算,并展示了冲击及其影响(板的穿孔变形)的演变过程。分析了弹板总能量、子弹动能和子弹速度随时间的变化规律。
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引用次数: 0
A NEW AGE IN THE AIR FORCE: THE DIGITALIZATION OF MILITARY HIGHER EDUCATION 空军的新时代:军事高等教育数字化
Pub Date : 2022-09-01 DOI: 10.19062/2247-3173.2022.23.14
E. Miron, L. Gherman
This paper represents AFAHC's conception of the beginning of digitization in the academy. The poor digitalization in the institution has made itself felt during the pandemic. The paper is a brief summary of what has been done over the course of a year to mitigate the effects of a weak digitization in the teaching/learning process. The beginning of solving the problem of digitalization, of understanding the digital educational process was made with the submission by a consortium with 4 partner universities of a project under the action Partnerships for Digital Education Readiness of the Erasmus program that is talked about in the paper.
本文阐述了AFAHC对学院数字化起步的构想。在大流行期间,该机构的数字化程度很差。本文简要总结了一年来为减轻教学/学习过程中数字化薄弱的影响所做的工作。解决数字化问题的开始,理解数字化教育过程的开始是由一个由4所合作大学组成的联盟提交的一个项目,该项目是在Erasmus项目的数字教育准备行动伙伴关系下进行的,这在论文中有提到。
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引用次数: 1
MISSION MANAGEMENT FOR AN AUTOMATED PILOT SYSTEM MOUNTED ON A FIXED-WING TWIN-ENGINE AIRPLANE UAV 安装在固定翼双发飞机无人机上的自动驾驶系统的任务管理
Pub Date : 2022-09-01 DOI: 10.19062/2247-3173.2022.23.24
G. Buican, S. Zaharia, onut Stelian Pascariu, L. Chicoş, C. Lancea, M. Pop, V. Stamate
UAV systems used automated pilots which can be configured based on the mission. The entry level market for this type of systems is not focus mainly on fixed-wing configurations. On this paper we asses, develop and simulate missions for an automated piloting system, built on a Cube Orange architecture. The flight controller is mounted on a fixed-wing twin-engine airplane built using additive manufacturing technologies. For the management and simulation of UAV mission we use Mission Planner, and open-source software from ArduPilot. The missions is simulated to obtain an improvement of the automated piloting system, evaluate the terrain from the flight path, avoid dangers, keep out of restricted areas and find the optimal routes. .
无人机系统使用可根据任务配置的自动飞行员。这类系统的入门级市场并不主要集中在固定翼配置上。在本文中,我们对基于Cube Orange架构的自动驾驶系统的任务进行了评估、开发和模拟。飞行控制器安装在使用增材制造技术制造的固定翼双引擎飞机上。对于无人机任务的管理和仿真,我们使用了任务规划器和开源软件ArduPilot。对这些任务进行仿真,以获得自动驾驶系统的改进,从飞行路径评估地形,避开危险,避开限制区域,找到最优路线。
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引用次数: 0
POWER DISTANCE INDEX AND ITS ROLE IN THE EFFICIENT FUNCTIONING OF MULTINATIONAL ORGANIZATIONS 权力距离指数及其在跨国组织有效运作中的作用
Pub Date : 2022-02-18 DOI: 10.19062/2247-3173.2021.22.9
Adrian-Gabriel Ducu
Enveloping a wide-range spectrum of political, cultural, and ethical aspects, the power distance index essentially summarizes the acceptance of hierarchical structures. The number of micro ecosystems in which hierarchy and power-centered forms of organization prevail is undoubtedly large, given the fact that authoritarian regimes have been mostly abolished and invalidated during relatively recent history, and many people are still unconsciously reminiscing on their unwritten rules of conduct. This paper intends to take a closer look into the impact that various power distance index values have on organizational culture, with multinationals being the niche thoroughly studied. By analyzing official performance reports in correlation with dr. Geert Hofstede’s premises, the author intends to give insight into how overall worker performance is affected by autocracy, inequality, and responsibility centralization, which are all consequences of high-power distance indexes.
权力距离指数涵盖了广泛的政治、文化和伦理方面,它本质上概括了人们对等级结构的接受程度。考虑到专制政权在相对较近的历史中大多被废除和无效,许多人仍在无意识地回忆他们不成文的行为规则,层级和以权力为中心的组织形式盛行的微生态系统的数量无疑是巨大的。本文拟深入探讨不同权力距离指标值对组织文化的影响,并以跨国公司为研究对象。通过分析与Geert Hofstede博士的前提相关的官方绩效报告,作者打算深入了解工人的整体绩效是如何受到专制、不平等和责任集中的影响的,这些都是高权力距离指数的后果。
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引用次数: 0
PRISONERS' CAMP FROM TIMIȘU DE JOS AND THE HUMANITARIAN TREATMENT APPLIED BY THE ROMANIAN STATE TO AMERICAN AVIATION WAR PRISONERS DURING THE SECOND WORLD WAR, AN EXAMPLE OF THE GOOD PRACTICES IN COMPLIANCE WITH THE LAWS AND CUSTOMS OF WAR 来自timiȘu de jos的战俘营和罗马尼亚国家在第二次世界大战期间对美国航空战俘的人道主义待遇,这是遵守战争法和惯例的良好做法的一个例子
Pub Date : 2022-02-18 DOI: 10.19062/2247-3173.2021.22.23
Elena-Laura Ion
The preasent essay is meant to present a teadious analysis concerning not only the way that the american POW were treated, but also the existing conditions within the camp that accommodated the american and british officers and NCOs captured after the Bucharest bombings and the ones over the refinery situated on Valea Prahovei.
本文不仅要对美国战俘的待遇进行冗长的分析,而且要分析在布加勒斯特爆炸事件和位于Valea Prahovei的炼油厂爆炸事件后俘虏的美国和英国军官和士官的营地内的现有条件。
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引用次数: 0
STUDYING THE COHERENCE VALUES FOR UHI: A CASE STUDY OF IASI uhi的相干值研究:以iasi为例
Pub Date : 2022-02-18 DOI: 10.19062/2247-3173.2021.22.16
Paul Macarof, Paul-Marian Gherasim
Thermal properties of surface, Earth’s surface energy balance and atmospheric conditions effect the land surface dramatically. Local and global change continues in the Earth’s climate since the industrial era continues. The urban heat island (UHI) represents the phenomenon of higher atmospheric and surface temperatures occurring in urban area or metropolitan area than in the surrounding rural zones due to urbanization. UHI is most noticeable during the summer and winter. The main cause of the UHI effect is from the modification of land surfaces. In this research was using MODIS and SENTINEL data. From SENTINEL images was extracted coherence maps to determine values of this parameter in areas where UHI was notice. Coherence for SUHI range from 0.20 to 0.89 for day and varies for night between 0.23-0.89.
地表热特性、地表能量平衡和大气条件对地表有显著影响。自工业时代以来,地球气候的局部和全球变化仍在继续。城市热岛(UHI)是指由于城市化,城市地区或大都市地区的大气和地表温度高于周边农村地区的现象。城市热岛在夏季和冬季最为明显。造成热岛效应的主要原因是陆地表面的变化。本研究使用MODIS和SENTINEL数据。从SENTINEL图像中提取相干图,以确定注意到热岛的地区该参数的值。白天相干度在0.20 ~ 0.89之间,夜间相干度在0.23 ~ 0.89之间。
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引用次数: 0
THE LIEUTENANT COMMANDER POPIȘTEANU ALEXANDRU, COMMANDER OF THE HEROICAL 7 th FIGHTER GROUP IN THE AIR BATTLE FOR THE LIBERATION OF BASARABIA AND THE CONQUEST OF ODESSA 中尉指挥官POPIȘTEANU亚历山大鲁,在解放巴萨比亚和征服敖德萨的空战中英勇的第7战斗机群的指挥官
Pub Date : 2022-02-18 DOI: 10.19062/2247-3173.2021.22.29
Jănel Tănase
Called by his qualities to become a flyer, a personality with a complex aeronautical training, being a graduate of the Romanian Higher War School and the French War School, with a unanimously recognized activity in military aviation in the interwar period, aviator commander Alexandru Plopișteanu, commander of the elite group of the fighter aviation, the 7th Fighter Group of the 1 st Fighter Flotilla, fell in the whirlwind of aerial combat facing the enemy, in the sky of Odessa, on August 21, 1941, by his deeds at the head of his unit that executed in 60 days of combat 233 missions to the enemy, with 40 air battles, from which 55 victories resulted, he constituted and constitutes for the generations of aviators the perfect war aviator commander and a legendary figure of the Romanian wings.
称为他的品质成为传单、个性与一个复杂的航空培训,作为一个毕业于罗马尼亚的高等学校和法国的战争,战争与军事航空一致公认的活动在两次世界大战期间,飞行员指挥官Alexandru Plopișteanu,精英集团的指挥官战斗机的航空、7战机群1 st战斗机舰队,在空战面临敌人的旋风,在敖德萨的天空,8月21日,1941年,他带领他的部队在60天的战斗中执行了233次对敌人的任务,其中40次空战,其中55次取得胜利,他是几代飞行员中完美的战争飞行员指挥官和罗马尼亚联队的传奇人物。
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引用次数: 0
THE COMMUNICATIONAL DIMENSION OF DIGITAL DIPLOMACY 数字外交的沟通维度
Pub Date : 2022-02-18 DOI: 10.19062/2247-3173.2021.22.12
Victor Vevera, Sorin Topor
Diplomacy has emerged in interstate relations as a mechanism that facilitates the achievement of state objectives, with the task of promoting and protecting state sovereignty. It has had to be reinvented with every important discovery in world history and with every substantial change in the field of communication. The fourth industrial revolution changed the whole panoply of interpersonal and interstates relations, having an important effect on the way international relations unfolded. The emergence of 24/7 news networks, social networks, blogs and streaming has led diplomacy to enter a new stage of its transformation and adaptation to the realities of the contemporary world, giving rise to the so-called digital diplomacy. In this article cyber diplomacy is described from its communicational dimension point of view underlining its importance for assuring national interest of states.
外交作为一种促进实现国家目标的机制出现在国家间关系中,其任务是促进和保护国家主权。随着世界历史上的每一个重大发现和通信领域的每一次重大变化,它不得不重新发明。第四次工业革命改变了人际关系和国家间关系的整体格局,对国际关系的发展方式产生了重要影响。全天候新闻网络、社交网络、博客和流媒体的出现,使外交进入了一个适应当代世界现实的转型新阶段,催生了所谓的数字外交。本文从网络外交的传播维度出发,阐述了网络外交对保障国家利益的重要性。
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引用次数: 0
THE ROLE OF PERSONAL DEVELOPMENT IN STUDENTS ADAPTING TO THE ACADEMIC LIFE 个人发展在学生适应学术生活中的作用
Pub Date : 2022-02-18 DOI: 10.19062/2247-3173.2021.22.10
O. Jitaru, Roxana Axinte, Cristina Vatavu
In this article we describe the results obtained in an activity of evaluation of a personal development program addressed to students in the first year of study. It was carried out within a project financed by the Scholarship Scheme for Universities, concluded between the Ministry of National Education through the Management Unit of Externally Funded Projects and the Faculty of Electrical Engineering, Energy and Applied Informatics, “Gheorghe Asachi” Technical University of Iasi. The specific objectives of the project pursued three intervention components: motivation (M), networking (R) and workload (V). These have been directly correlated with other identified aspects (individual failure, academic failure) that lead to school dropouts and low academic performance. In order to achieve the objectives, the project presented a proposed activity plan for a target group of 80 students for one year of implementation). The activities proposed within the project represent punctual educational interventions on the factors that influence school dropout and academic performance. The evaluated program, the results of which we present here, was subordinated to the objectives related to the motivation of the students and their relationship skills and pursued personal development through creativity and socio-emotional education in students. This dimension of the programme was chosen because a major need existing on the labour market is the need to educate young people to have the attitude of a winner and to find solutions to problems .The behavioural acquisitions of the students, within the personal development programme through creativity and social-emotional education were: flexible, generative thinking in solving problems; acquiring coping strategies; optimisation of personal and academic life.
在这篇文章中,我们描述了一项针对第一年学生的个人发展项目评估活动的结果。这是在由大学奖学金计划资助的一个项目内进行的,该项目是由国家教育部通过外部资助项目管理股和雅西“乔治阿萨奇”技术大学电气工程、能源和应用信息学学院缔结的。该项目的具体目标涉及三个干预组成部分:动机(M)、网络(R)和工作量(V)。这些因素与导致辍学和学习成绩低下的其他已确定方面(个人失败、学业失败)直接相关。为了实现这些目标,该项目提出了一项拟议的活动计划,目标群体为80名学生,为期一年。项目内提出的活动是对影响辍学和学习成绩的因素进行及时的教育干预。我们在这里展示的评估项目的结果,是从属于与学生的动机和他们的人际关系技巧相关的目标,并通过学生的创造力和社会情感教育追求个人发展。之所以选择这个项目,是因为劳动力市场上存在的一个主要需求是教育年轻人要有胜利者的态度,并找到解决问题的办法。在个人发展项目中,通过创造力和社会情感教育,学生的行为习得是:解决问题的灵活、生成思维;获取应对策略;优化个人和学术生活。
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引用次数: 0
SUPERSONIC AIR INLET FOR A HIGH VELOCITY PROPULSION SYSTEM 高速推进系统的超音速进气口
Pub Date : 2022-02-18 DOI: 10.19062/2247-3173.2021.22.19
A. Tudosie, V. Prisacariu
The paper aims to determine the optimal geometry, the control law and the operational limits of a supersonic air inlet; its operation control consists of its central cone positioning, with respect to the flight Mach number, keeping in sight the necessity of a suitable parameters’ distribution into engine’s combustion chamber. Inlet’s optimal architecture shall be determined (based on an algorithm regarding the maximization of the total pressure recovery), using basic planar geometry principles. Based on the optimal geometry of the inlet, its flow rate characteristic and its control law, as well as inlet’s operation limits were calculated and graphically represented.
本文旨在确定超声速进气道的最优几何形状、控制规律和工作极限;它的运行控制包括它的中心锥定位,相对于飞行马赫数,考虑到一个合适的参数分配到发动机的燃烧室的必要性。应使用基本的平面几何原理确定入口的最佳结构(基于有关总压恢复最大化的算法)。在优化进气道几何形状的基础上,计算了进气道的流量特性、控制规律以及进气道的工作极限,并给出了图形化表示。
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引用次数: 0
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SCIENTIFIC RESEARCH AND EDUCATION IN THE AIR FORCE
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