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Wyszukujesz frazę "Air defence" wg kryterium: Temat


Wyświetlanie 1-10 z 10
Tytuł:
Contemporary threats to the state air defence system
Autorzy:
Radomyski, Adam
Materak, Witold
Powiązania:
https://bibliotekanauki.pl/articles/576135.pdf
Data publikacji:
2016-06-30
Wydawca:
Akademia Sztuki Wojennej
Tematy:
air defence
air defence systems
fighter aircraft
ballistic missiles
air threats
air terrorism
Opis:
The contents of this article are focused on presenting the results of research concerning development of the means of air threat as a major determinant of changes in the modernisation of the air defence system in Poland. In this regard, the authors emphasise the role and means of air threat as a kind of pacemaker development of air defence systems. In this article, the main area of scientific considerations are technical and tactical aspects concerned with the evolution of manned and unmanned aircraft. The directions of their development of combat capabilities and an estimate of their use in contemporary and future battlefields against military objectives and non-military ones are covered. The article has high educational value and highlights future threats to the state air defence system and development trends in the twenty-first century.
Źródło:
Security and Defence Quarterly; 2016, 11, 2; 45-69
2300-8741
2544-994X
Pojawia się w:
Security and Defence Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evolution of the Aerial Defence of Air Bases : Concepts and Lessons Learned
Autorzy:
Kołata, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/93303.pdf
Data publikacji:
2019
Wydawca:
Akademia Sztuki Wojennej
Tematy:
air defence
air superiority
military air base
Opis:
The lessons learned during wars and armed conflicts indicate that the main factor influencing the aerial defence of air bases were directly related to the rapid development of the combat capabilities of aerial threats. Air bases have been lucrative targets for enemy air strikes since the first documented attack by a British aircraft on a German airfield in 1914 and have remained so for contemporary military air operations. The article discusses the evolution of concepts and lessons learned in the field of aerial defence of air bases that resulted from armed conflicts and local wars. The analysis includes armed conflicts, which, according to the author, have reflected the changes in the organisation of the aerial defence of air bases, including the repulsion of air strikes against aviation on the ground. Attention was paid to the conditions related to the aerial defence of aviation on the ground during the First World War. A more thorough analysis was made of the Second World War period, focused on the Western Front and the defence of Poland. Particular attention was paid to the Battle of Britain, noting the importance of the organisation of the radar air surveillance system in the context of the effectiveness of air defence. The focus of the analysis then shifts to the aerial defence of air bases during armed conflicts after the Second World War: the Vietnam War (1965-1973), the Yom Kippur War (1973), the defence of air bases in the Yom Kippur War (1973), and NATO operations from the air against air bases during the Deny Flight / Deliberate Force (1992-1995) and Allied Force (1999) operations. The article also makes a preliminary assessment of the aerial defence of air bases during the ongoing conflict in Syria.
Źródło:
Zeszyty Naukowe Akademii Sztuki Wojennej; 2019, 1(114); 53-74
2543-6937
Pojawia się w:
Zeszyty Naukowe Akademii Sztuki Wojennej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The role, place and future of the anti-aircraft defence elements in the territorial defence structures
Autorzy:
Szymanowski, Karol
Powiązania:
https://bibliotekanauki.pl/articles/534377.pdf
Data publikacji:
2017
Wydawca:
Wyższa Szkoła Biznesu w Dąbrowie Górniczej
Tematy:
Anti-aircraft Defence
Territorial Defence Forces
Air Defence
Territorial Defence
Multilayered anti-aircraft defence
Opis:
The purpose of the article is to analyse the elements of the anti-aircraft defence within Territorial Defence Forces. For this purpose, the author outlined the general concept and role played by Territorial Defence in the defence system of the nation, analysed the impact of the anti-aircraft defence on the military tasks performance as well as examined the localization of the anti-aircraft defence sub-units in the Territorial Defence structures and air defence system of the nation. Research findings presented by the author indicate the need to take into consideration numerous aspects, resulting from the specialist character of the air defence forces, in the process of creating Territorial Defence. The author also pays special attention to the possible participation of the air defence within Territorial Defence Forces in the multi-layered anti-aircraft defence system of the nation.
Źródło:
Security Forum; 2017, 1, Volume 1 No. 1/2017; 63-72
2544-1809
Pojawia się w:
Security Forum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of Air Defence in the United States between 1917 and 1945
Autorzy:
Radomyski, Adam
Powiązania:
https://bibliotekanauki.pl/articles/28411127.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Mikołaja Kopernika w Toruniu. Wydawnictwo UMK
Tematy:
air defence
combat aircraft
anti-aircraft artillery;
searchlight
barrage balloon
Opis:
The article presents the results of academic research focusing on the origins and development of anti-aircraft artillery in the United States which was to guarantee the safety of American soldiers fighting in the First and Second World Wars. The findings of this study confirm that, in the early days, knowledge of the phenomena occurring in the air dimension of armed struggle was primarily empirical. As early as 1916, Alexander Graham Bell warned of the possibility of air raids on the United States. Over the next 25 years, experts conducted research into air defence, which became crucial in its subsequent development. The basis for the development of air defence was the emergence of a new weapon at the end of the First World War, i.e., anti-aircraft artillery. Basing on the experience of the United States from the First World War in the interwar period, air defence began to be seen in terms of a system whose main task was to detect and destroy enemy aviation, attacking troops, civilians and facilities at the rear of the front. Considering the outlined problem scenario and the subject of the research, it was assumed that the aim of the article will be to discuss the stages of the development of air defence in the United States in the years 1917–1945 and the experience of US anti-aircraft artillery gained on the fronts of the First and Second World Wars.
Źródło:
Historia i Polityka; 2023, 44 (51); 139-158
1899-5160
2391-7652
Pojawia się w:
Historia i Polityka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
IAMD (Integrated Air and Missile Defence) Strategic Aspects with SBAD Focus
Autorzy:
Pietrus, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/28411991.pdf
Data publikacji:
2023
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
air threat
integrated air defence
missile defence
strategic aspect
zagrożenie powietrzne
zintegrowana obrona powietrzna
obrona przeciwrakietowa
aspekt strategiczny
Opis:
The main aim of this article is to prove the importance of strategic aspects of Integrated Air and Missile Defence especially with focus on SBAD (Surface Based Air Defence) systems. To achieve the aim, theoretical research methods such as analysis, synthesis, comparison and generalization were applied. The results show that the strategic aspects of Integrated Air and Missile Defence should be considered as the crucial elements of the military deterrence for NATO. In addition offensive action must be consider also as a defencise posture. Thus, the formulated thesis undermines the up-to-date understanding of the problem, and therefore may contribute to further discussion on the topic of using means of defensive deterrence for NATO. Once again, this is highly important to have, develop and operate such systems nowadays. IAMD has become one of the most important pillars of the security of NATO countries. Due to the fact that this article is unclassified, it is remaining on generic statements and not dig in into details which are normally more sensitive.
Źródło:
Safety & Defense; 2023, 1; 69--73
2450-551X
Pojawia się w:
Safety & Defense
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SAN : an Integrated Unmanned Air Vehicles Interdictor System Concept
Koncepcja Zintegrowanego Systemu Antydronowego : SAN
Autorzy:
Król, M.
Koperski, W.
Błaszczyk, J.
Woźniak, R.
Błaszczyk, P. M.
Powiązania:
https://bibliotekanauki.pl/articles/403783.pdf
Data publikacji:
2017
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
unmanned air vehicle systems
drone
antiterrorist security
air defence
bezzałogowe systemy latające
dron
ochrona antyterrorystyczna
obrona powietrzna
Opis:
The development of unmanned air vehicles (UAVs) has been very rapid recently. The wide accessibility of UAVs has unlocked a great potential for the malicious or accidental damage or destruction of property or other aircraft in flight. UAVs can be used for espionage, contraband, and the trafficking or transport of arms and hazardous materials. Every month sees a growing number of reports of incidents that involve remote-controlled UAVs operated for aerial video recording. These incidents justify undertaking research into minimizing the hazards which UAVs may potentially cause. A concept was developed for a solution dedicated to this problem and comprising an integrated modular anti-UAV system for application in commercial (civilian) markets in the areas of security of mass events, strategic enterprises, and critical strategic infrastructure in Poland. The proposed system is intended to incapacitate any UAVs that breach a predefined air space and bring the incapacitated UAVs safely to the ground. The project is developed jointly by the Institute of Armament Technology at the Military University of Technology (Warsaw, Poland) and Polish company Ellipsis Sp. z o.o.
W ostatnich latach można zaobserwować szybki rozwój technologiczny bezzałogowych statków latających. Szeroki dostęp do bezzałogowych statków powietrznych (BSP) otwiera drogę do nadużyć spowodowanych ich umyślnym lub niezamierzonym użyciem w celu doprowadzenia do uszkodzenia lub zniszczenia innych statków powietrznych, innego mienia. BSP mogą być wykorzystywane do szpiegostwa, przemytu, przenoszenia broni i substancji niebezpiecznych. Z miesiąca na miesiąc wzrasta liczba doniesień odnośnie incydentów z udziałem głównie modeli zdalnie sterowanych wykorzystywanych do filmowania z powietrza. Uzasadnia to podjęcie prac zmierzających do zminimalizowania zagrożeń, jakie mogą być spowodowane przez bezzałogowe statki powietrzne. Opracowana została koncepcja dedykowanego rozwiązania w postaci zintegrowanego, modułowego systemu do ochrony przeciw BSP, który może zostać zastosowany w rynku cywilnym do ochrony imprez masowych, strategicznych przedsiębiorstw oraz infrastruktury krytycznej w Polsce. Proponowany system ma na celu unieruchomienie BSP, które naruszyły zastrzeżoną przestrzeń powietrzną i bezpieczne sprowadzenie ich na ziemię. Projekt powstaje we współpracy Instytutu Techniki Uzbrojenia Wojskowej Akademii Technicznej z firmą Ellipsis Sp. z o.o.
Źródło:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2017, 8, 4 (30); 79-94
2081-5891
Pojawia się w:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Air security of NATO’s eastern flank: threats and challenges
Bezpieczeństwo powietrzne wschodniej flanki NATO: zagrożenia i wyzwania
Autorzy:
Michalski, Daniel
Bernat, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/30145352.pdf
Data publikacji:
2020
Wydawca:
Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
Tematy:
obrona powietrzna
bezpieczeństwo powietrzne
zagrożenie powietrzne
wschodnia flanka NATO
siły powietrzne
Federacja Rosyjska
air defence
air security
air threat
NATO’s eastern flank
air force
Russian Federation
Opis:
The focal point of the paper is to assess the air security on the NATO’s eastern flank in the context of the dynamic changes that have occurred in its immediate vicinity. The authors, beginning with an overview of the current framework of the air security situation in the region, have analysed the developments that have taken place in that regard. The modernisation of missile systems, as well as air and space forces by the Russian Federation, both in qualitative and quantitative terms, have been the subject of thorough scrutiny. The challenges generated by the new situation have been weighed against the current and future NATO’s defence capabilities against air threats.
Artykuł skupia się na ocenie bezpieczeństwa powietrznego wschodniej flanki NATO w kontekście dynamicznych zmian w jego bezpośrednim sąsiedztwie. Autorzy rozpoczynając od przeglądu obecnej sytuacji w zakresie bezpieczeństwa powietrznego w regionie, dokonali analizy rozwoju tego środowiska. Szczególną uwagę zwracając przy tym na proces modernizacji systemów rakietowych, sił powietrznych i kosmicznych Federacji Rosyjskiej, zarówno pod względem jakościowym jak i ilościowym. Wyzwania wynikające z nowej sytuacji zostały porównane z obecnymi i przyszłymi zdolnościami obronnymi NATO przed zagrożeniami lotniczymi.
Źródło:
Scientific Journal of the Military University of Land Forces; 2020, 52, 2(196); 352-365
2544-7122
2545-0719
Pojawia się w:
Scientific Journal of the Military University of Land Forces
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concept of a Marine Remote Controlled Artillery-Missile System
Koncepcja morskiego zdalnie sterowanego systemu artyleryjsko-rakietowego
Autorzy:
Koruba, Z.
Szmidt, P.
Gapiński, D.
Powiązania:
https://bibliotekanauki.pl/articles/222443.pdf
Data publikacji:
2017
Wydawca:
Akademia Marynarki Wojennej. Wydział Dowodzenia i Operacji Morskich
Tematy:
Marine Autonomous Remote Controlled Artillery-Missile System
air defence
control
morski autonomiczny zdalnie sterowany system artyleryjsko-rakietowy
obrona powietrzna
sterowanie
Opis:
This paper presents general assumptions and concept, block diagram of the operation principle as well as control algorithm of a short range Marine Remote Controlled Artillery-Missile System (MZSSAR). Its main purpose is to combat low-flying manoeuvring air targets. In relation to existing set ‘Wróbel II’, an additional opportunity of autonomous search, detection, identification, tracking and effective target combat will appear. An increase of combat capabilities of a modified set, including in particular operation speed and range of target detection, will be possible.
Artykuł przedstawia ogólne założenia, koncepcję, schemat blokowy i algorytm sterowania morskiego zdalnie sterowanego systemu artyleryjsko-rakietowego średniego zasięgu (MZSSAR). Głównym zadaniem tego systemu jest zwalczanie nisko lecących celów manewrujących. W obecnym zestawie „Wróbel II” pojawią się dodatkowe opcje: autonomicznego poszukiwania, wykrywania, identyfikacji, śledzenia i skutecznego zwalczania celu, możliwy będzie też wzrost zdolności bojowych, w szczególności prędkości operacyjnej i zasięgu wykrywania celu.
Źródło:
Zeszyty Naukowe Akademii Marynarki Wojennej; 2017, R. 58 nr 2 (209), 2 (209); 97-107
0860-889X
Pojawia się w:
Zeszyty Naukowe Akademii Marynarki Wojennej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative analysis regarding surface-to-air missiles guidance in terms of using the three points and proportional approach methods
Autorzy:
Constantinescu, Cristian George
Şandru, Vasile Ioan
Strimbu, Constantin
Powiązania:
https://bibliotekanauki.pl/articles/197422.pdf
Data publikacji:
2020
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
surface-based air defence system
guidance methods by three points
proportional approach
naziemny system obrony powietrznej
metody naprowadzania według trzech punktów
podejście proporcjonalne
Opis:
Surface-Based Air Defence systems are the main actions on the ground means of response in fighting with aerial threats. Effectiveness of response is given by its basic elements as defended area size, type and number of missiles systems or command and control and logistical support. Guiding method means a well-defined law ruling the missile trajectory near the target, depending on target coordinates and motion parameters, to ensure a successful mission. The influence of target routing law on the missile guidance should not be confused with some guidance methods. Therefore, for missile guidance, it is enough to determine (regardless of the guidance method), the target motion equations related only to its coordinate elevation angle, kinematics, azimuth, and weather conditions.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2020, 106; 29-39
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ozone effects on trees, where uptake and detoxification meet
Autorzy:
De, Temmerman L
Vandermeiren, K.
D'Haese, D.
Bortier, K.
Asard, H.
Ceulemans, R.
Powiązania:
https://bibliotekanauki.pl/articles/41371.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
air pollutant
ozone effect
oxidative defence
detoxification
ozone
critical level
tree
ozone concentration
effective ozone flux
Opis:
Ozone is the most important air pollutant and its concentration in ambient air is still rising. Ozone concentrations measured at reference height (50 m is EMEP ozone modelling height), do not reflect the real concentration at the top of the vegetative canopy and do not provide sufficient information about the ozone fluxentering the leaves. Modelling stomatal conductance is leading to estimations of cumulative ozone uptake and enables much better to evaluate the impact of ozone on trees. The negative impact of ozone exposure has a measurable effect on physiological processes such as stomatal conductance, photosynthesis and respiration. Disturbance of the basic physiological processes is leading to growth and wood production losses. There have been several attempts to establish critical levels (CL) for ozone effects on forest trees. Average concentrations and cumulative exposure indices are satisfactory to some extent, but do not fully describe the potential impact of ozone exposure. Much more promising is an evaluation based on the effective ozone flux, which is a function of the absorbed ozone flux and the defensive response. Ozone uptake takes place primarily through the stomata and reactions of ozone with hydrocarbons released by the plant cells and transformations of dissolved ozone in the apoplastic fluid create many reactive oxygen species of which free radicals are able to initiate membrane lipid peroxidation and destruction of cell membranes. The defence of a plant against absorbed ozone starts in the apoplastic fluid. Ascorbate is believed to be a very important radical scavenger avoiding detrimental effects of reactive oxygen species to the membranes. Other important antioxidants are phenolics. The defensive response can be linked to the abundance of ascorbate or the ability of the plants to regenerate (reduce) ascorbate from monodehydroascorbate and dehydroascorbate. The reduction of dehydroascorbate takes place in the symplast where ascorbate can be transported back through the plasma membrane into the apoplast. Ozone exposure also causes oxidative stress of the plant cell interior by the formation of reactive oxygen species. Plants can cope with those toxic substances in the symplast by using antioxidants such as ascorbate, -tocopherol, glutathione and carotenoids and enzymes such as superoxide dismutases, catalases and several peroxidases. The complexity of the apoplastic and symplastic antioxidative capacity with different turnover rates and transport of antioxidants makes it difficult to determine the total antioxidative power.
Źródło:
Dendrobiology; 2002, 47
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-10 z 10

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