Bibliographies thématiques / Conopsis

Littérature scientifique sur le sujet « Conopsis »

Auteur : Grafiati
Publié le 26 juillet 2024

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Articles de revues sur le sujet "Conopsis"

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GOYENECHEA, IRENE, et OSCAR FLORES-VILLELA. « Taxonomic summary of Conopsis, Günther, 1858 (Serpentes : Colubridae) ». Zootaxa 1271, no 1 (24 juillet 2006) : 1. http://dx.doi.org/10.11646/zootaxa.1271.1.1.

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The colubrid snake genus Conopsis is distributed in mainland Mexico. The taxonomic history of this genus is complex and recently organisms under the genus Toluca have been synonimized with Conopsis. Here we present the nomenclatural history, morphological variation, distribution and a dichotomous key for the genus Conopsis. Species characterizations are based on a previous cladistic analysis of molecular and morphological characters. We recognize six valid species: C. acuta n. comb., C. amphisticha, C. biserialis, C. lineata, C. megalodon and C. nasus.
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Villalobos Juárez, Ivan, Elí García-Padilla, José Jesús Sigala-Rodríguez et Daniel Alexander Carrillo-Martínez. « Conopsis lineata (COLUBDRIDAE) ». Revista Latinoamericana de Herpetología 5, no 4 (27 octobre 2022) : 15. http://dx.doi.org/10.22201/fc.25942158e.2022.4.521.

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Berriozabal Islas, Christian Said, Aurelio Ramírez Bautista, José Daniel Lara Tufiño, Iris Aurora Nava Jiménez et Roberto Arellano Picacho. « PRIMER REGISTRO DE ALBINISMO EN LA CULEBRA NARIZ DE PALA Conopsis nasus (Colubridae) ». Revista Latinoamericana de Herpetología 5, no 1 (24 février 2022) : 124–26. http://dx.doi.org/10.22201/fc.25942158e.2022.1.371.

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Conopsis nasus es una serpiente endémica a México, habita en bosques de pino-encino, matorrales xerófilos y submontanos, así como zonas perturbadas por la actividad humana. El 15 de enero de 2016, se encontró una hembra adulta de Conopsis nasus con coloración atípica albina, en la cabecera de Tula de Allende, Hidalgo, México. El ejemplar reportado se localizó en una zona de suelo calizo, lo que podría ayudar a explicar por qué logró alcanzar la talla adulta, a pesar de presentar una condición albina completa.
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Goyenechea, Irene, et Oscar Flores-Villela. « Taxonomic Status of the Snake Genera Conopsis and Toluca (Colubridae) ». Journal of Herpetology 36, no 1 (mars 2002) : 92–95. http://dx.doi.org/10.1670/0022-1511(2002)036[0092:tsotsg]2.0.co;2.

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Figueroa-Huitrón, Ricardo, Anibal Díaz de la Vega-Pérez, Melissa Plasman et Hibraim Adán Pérez-Mendoza. « Physiological thermal responses of three Mexican snakes with distinct lifestyles ». PeerJ 12 (19 juillet 2024) : e17705. http://dx.doi.org/10.7717/peerj.17705.

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The impact of temperature on reptile physiology has been examined through two main parameters: locomotor performance and metabolic rates. Among reptiles, different species may respond to environmental temperatures in distinct ways, depending on their thermal sensitivity. Such variation can be linked to the ecological lifestyle of the species and needs to be taken into consideration when assessing the thermal influence on physiology. This is particularly relevant for snakes, which are a very functionally diverse group. In this study, our aim was to analyze the thermal sensitivity of locomotor performance and resting metabolic rate (RMR) in three snake species from central Mexico (Crotalus polystictus, Conopsis lineata, and Thamnophis melanogaster), highlighting how it is influenced by their distinctive behavioral and ecological traits. We tested both physiological parameters in five thermal treatments: 15 °C, 25 °C, 30 °C, 33 °C, and 36 °C. Using the performance data, we developed thermal performance curves (TPCs) for each species and analyzed the RMR data using generalized linear mixed models. The optimal temperature for locomotion of C. polystictus falls near its critical thermal maximum, suggesting that it can maintain performance at high temperatures but with a narrow thermal safety margin. T. melanogaster exhibited the fastest swimming speeds and the highest mass-adjusted RMR. This aligns with our expectations since it is an active forager, a high energy demand mode. The three species have a wide performance breadth, which suggests that they are thermal generalists that can maintain performance over a wide interval of temperatures. This can be beneficial to C. lineata in its cold habitat, since such a characteristic has been found to allow some species to maintain adequate performance levels in suboptimal temperatures. RMR increased along with temperature, but the proportional surge was not uniform since thermal sensitivity measured through Q10 increased at the low and high thermal treatments. High Q10 at low temperatures could be an adaptation to maintain favorable performance in suboptimal temperatures, whereas high Q10 at high temperatures could facilitate physiological responses to heat stress. Overall, our results show different physiological adaptations of the three species to the environments they inhabit. Their different activity patterns and foraging habits are closely linked to these adaptations. Further studies of other populations with different climatic conditions would provide valuable information to complement our current understanding of the effect of environmental properties on snake physiology.
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SMIT, JOHN, IVO RAEMAKERS et KEVIN BEENTJES. « First host record of Myopa pellucida Robineau-Desvoidy (Diptera : Conopidae) identified using DNA barcoding ». Zootaxa 4521, no 4 (15 novembre 2018) : 593. http://dx.doi.org/10.11646/zootaxa.4521.4.8.

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Thick-headed flies of the genus Myopa Fabricius are a common sight in early spring in Europe. Several species can be found flying among Salix catkins together with their supposed Andrena Fabricius hosts (Hymenoptera: Apidae) (John Smit observations). Despite the fact that some of these Myopa species are very common, little is known about their actual host-parasitoid associations. Only a few scattered host records can be found in the literature, most of which refer to M. testacea s.l.. Whether or not these records actually concern M. testacea (Linnaeus) is uncertain due to the confusion over the identity of several species within the M. testacea species group (Stuke & Clements 2008). Stuke (2017), in his World Catalogue of Conopids, provides all recorded host associations and distinguishes between unambiguously accepted host records and doubtful records based on three criteria: 1) the conopid has been reared from the host or a larva has been identified by DNA barcoding; 2) there is no doubt concerning the identity of the conopid species concerned, and 3) there is no doubt concerning the identity of the host species. Because the vast majority of the host records in the literature do not fulfil one or more of these criteria they are regarded as doubtful (Stuke 2017). Thus, only three host associations for the genus Myopa can be regarded as confirmed: Andrena vaga Panzer, for both M. hirsuta Stuke & Clements (Jentzsch 2009) and M. testacea (Erteld 1998, Fellendorf et al. 2004, De Meijere 1912), and the Nearctic Andrena regularis Malloch, for the Holarctic M. vicaria Walker (Miliczky & Osgood 1995). Here we report on a fourth host association for the genus Myopa, since a second instar larva of M. pellucida Robineau-Desvoidy was found in the abdomen of an Andrena nitida (Müller) female and identified using DNA barcoding.
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ЕГОРОВА, Н. Ю., et В. Н. СУЛЕЙМАНОВА. « Distribution and ecological and coenotic features of Gymnadenia conopsea (L.) R.Br. in the subzone of the southern taiga (Kirov region) ». Vestnik of North-Eastern Federal University, no 1(81) (28 février 2021) : 5–19. http://dx.doi.org/10.25587/r9143-9710-5484-i.

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Аннотация. Сокращение биоразнообразия считается одной из значимых проблемсовременности. Одной из причин исчезновения редких видов растений является утратахарактерных местообитаний. Поэтому для сохранения таких видов необходимо изучениеэколого-ценотических параметров типичных биотопов на всем протяжении ареала и выделение ключевых факторов, лимитирующих их распространение. Gymnadenia conopsea (L.) R. Br. (Orchidaceae) – вид с сокращающейся численностью, включен в Красные книги многих субъектов РФ, в том числе и Кировской области. Цель настоящего исследования – выявлениефитоценотических параметров и экологических условий местообитаний G. conopsea в пределах южно-таежного фрагмента ареала (Кировская область). Сбор материала проведен в течение вегетационных периодов 2007–2019 гг. Описания растительных сообществ с G. conopsea осуществлены согласно общепринятым геоботаническим методам. Оценка экологических условий местообитаний проведена по составу видов в сообществах по десяти амплитудным шкаламД. Н. Цыганова. Гемеробность определена по составу видов в растительных сообществах,в которых каждый вид имеет индивидуальный спектр толерантности к антропогенным факторам. Показано, что в пределах рассматриваемого фрагмента ареала местообитания, G. conopsea характеризуются широким спектром типов: ксеро-мезофильные луговые сообщества, опушечные фитоценозы лесо-лугового типа, лесные сообщества из Pinus sylvestris. G. conopsea относится к мезобионтным видам. Коэффициент экологической валентности в среднем составляет 55%. Вид в изученных фитоценозах реализует от 3,54 до 52,20% своих потенциальных возможностей по изученным факторам. По климатическим факторам вид гемиэврибионтен (It–0,66). Максимально реализует свои потенции G. conopsea по омброклиматической шкале (15,14%). По всемклиматическим шкалам экологические условия изученных местообитаний занимают центральное положение от потенциально возможных. В обобщенном спектре почвенных шкал вид выступает как гемистенобионт (It–0,44). Для G. conopsea полученные результаты позволяют расширить на 0,62 ступени влево шкалу кислотности почв и на 1,07 ступени вправо шкалу солевого режима. По остальным шкалам значения экологического пространства G. conopsea в изученных биотопах укладываются в диапазоны, приводимые Д. Н. Цыгановым для данного вида. По результатам PCA анализа исследованных ЦП и значений эдафических параметров биотопов установлено, что определяющими параметрами экоареала для G. conopsea являются факторы увлажнения и переменности увлажнения почвы. Растительные сообщества с участием G. conopsea представлены преимущественно видами с высокой чувствительностью к антропогенному воздействию. Во всех исследуемых фитоценозах выявлена значительная доля участия b-c-p-гемеробов (34,89%), что свидетельствует об относительной устойчивости вида.
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Nabieva, Alexandra, Elena Zhmud et Yulianna Zaytseva. « Initial stages of Gymnadenia conopsea (Orchidaceae) morphogenesis in in vitro culture ». BIO Web of Conferences 24 (2020) : 00059. http://dx.doi.org/10.1051/bioconf/20202400059.

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In the West Siberia there is very little data on the biology of cenopopulations of Gymnadenia conopsea. Habitat destruction and environmental changes, which potentially affected species long-term viability, led to G. conopsea cenopopulations fragmentation and isolation. A detailed study of the morphology variability of the Fragrant orchid representatives was carried out in the cenopopulation in Novosibirsk region. Our results indicate that asymbiotic germination of G. conopsea seeds is difficult to achieve and the species has serious conservation issues. It is the first report when the introduction of G. conopsea in tissue culture was undertaken as the initial stage of germplasm conservation of Siberian cenopopulation. Three modified nutrient media with different growth additives were tested to promote protocorm and seedling formation. The advanced G. conopsea seedlings establishment was obtained in 1/3 Murashige and Skoog (MS) medium, supplemented by 1.0 mgl−1 2-isopentenyladenine (2iP), 0.1 mgl−1 1-Naphthaleneacetic acid (NAA) and 10% coconut water. This study allowed establishing a reliable and reproducible system for the G. conopsea maintenance and conservation ex situ.
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Nabieva, Alexandra, Yulianna Zaytseva et Nana Shakarishili. « Genome size variability of the population of Gymnadenia conopsea (Orchidaceae) in the Novosibirsk Region (Russia) ». BIO Web of Conferences 38 (2021) : 00084. http://dx.doi.org/10.1051/bioconf/20213800084.

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Gymnadenia conopsea (Fragrant orchid) is a widespread model species for the study of polymorphism in the European part of Russia and abroad. Flow cytometry refers to rapid methods effective for assessing the structure of a population by DNA size estimation. However, this method is only available in habitats with close proximity to the place of the experiment, because this indicator is determined only in fresh leaves. A small population of G. conopsea in the industrial area adjacent to the Novosibirsk urban agglomeration in the Novosibirsk Region (NR) was studied. Only diploids were detected in the G. conopsea cenopopulation occurred in the industrial zone of the NR. In this study we pointed on significance of genome size variation, which correlates with the adaptive evolution of the G. conopsea in West Siberia. The revealed absence of minor cytotypes (individuals with a higher level of ploidy) in G. conopsea population reduces intraspecific and intrapopulation diversity of the species.
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Wang, Xin, Xiang-Jian Zhong, Na Zhou, Ning Cai, Jia-Hui Xu, Qing-Bo Wang, Jin-Jie Li, Qian Liu, Peng-Cheng Lin et Xiao-Ya Shang. « Rapid Characterizaiton of Chemical Constituents of the Tubers of Gymnadenia conopsea by UPLC–Orbitrap–MS/MS Analysis ». Molecules 25, no 4 (18 février 2020) : 898. http://dx.doi.org/10.3390/molecules25040898.

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Gymnadenia conopsea R. Br. is a traditional Tibetan medicinal plant that grows at altitudes above 3000 m, which is used to treat neurasthenia, asthma, coughs, and chronic hepatitis. However, a comprehensive configuration of the chemical profile of this plant has not been reported because of the complexity of its chemical constituents. In this study, a rapid and precise method based on ultra-high performance liquid chromatography (UPLC) combined with an Orbitrap mass spectrometer (UPLC–Orbitrap–MS/MS) was established in both positive- and negative-ion modes to rapidly identify various chemical components in the tubers of G. conopsea for the first time. Finally, a total of 91 compounds, including 17 succinic acid ester glycosides, 9 stilbenes, 6 phenanthrenes, 19 alkaloids, 11 terpenoids and steroids, 20 phenolic acid derivatives, and 9 others, were identified in the tubers of G. conopsea based on the accurate mass within 3 ppm error. Furthermore, many alkaloids, phenolic acid derivates, and terpenes were reported from G. conopsea for the first time. This rapid method provides an important scientific basis for further study on the cultivation, clinical application, and functional food of G. conopsea.
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Thèses sur le sujet "Conopsis"

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Hill, Adam L. « NPS-SCAT CONOPS and Radiation Environment ». Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/7357.

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Solar cells are the primary energy-collection agents used onboard spacecraft converting energy from the sun into electricity. With solar cells being the main source of power for satellites, it is important to know how they operate and degrade when exposed to the harsh environment of low earth orbit. The objective of this thesis is to estimate the solar cell degradation that will be experienced on orbit due to radiation. This linked with the mission of the NPS-SCAT providing a quantitative measurement on orbit of how solar cells degrade over time can reduce risk of expensive national satellite by providing real-life solar cells exposure to threats of the space environment. A secondary goal of this thesis is to build and present a representation of the CONOPs (concept of operations) that describes the functionality expected on orbit. Coordination with the software programmers as well as the staff to set robust functionality is the goal for the CONOPs. This software package will be programmed into the two 1U flight certified CubeSats as their standard programming once implementation and testing have been completed.
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Gilman, Scott D., et Russell A. Rhoads. « Wargaming and simulation as tools for CONOPS development ». Thesis, Monterey, California. Naval Postgraduate School, 2004. http://hdl.handle.net/10945/1423.

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Approved for public release; distribution is unlimited
The purpose of this thesis is to use wargaming and simulation to gain insight into the effective employment of a new Command, Control, Communications, Computers, Intelligence, Surveillance, and Reconnaissance (C4ISR) system, the Adaptive Joint C4ISR Node (AJCN). The AJCN provides the supported commander with several capabilities, to include: range extension, waveform bridging, signal intelligence, electronic warfare, and information operations. Two methods are used to gain insight to the support generation of the concept of operations for the AJCN's employment. The first method is wargaming. The wargaming method utilized a class of NPS students and the JCATS combat simulation model. The wargaming generated insights concerning the AJCN's employment. The second method is the use of a constructive simulation model, POA 2. Insights gained from the two methods include: the need for commanders to differentiate the AJCN and its supporting platform; the need for effective information processing techniques; the importance of maintaining at least two-tiers of AJCN coverage to enhance situational awareness of the supported units.
Major, United States Army
Captain, United States Army
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Rhoads, Russell A. Gilman Scott D. « Wargaming and simulation as tools for CONOPS development / ». Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Sep%5FRhoads.pdf.

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Thesis (M.S. in Modeling Virtual Environments and Simulations (MOVES))--Naval Postgraduate School, Sept. 2004.
Thesis advisor(s): Saverio M. Manago, Thomas W. Lucas. Includes bibliographical references (p. 87-89). Also available online.
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Foley, April J. « Nanosat employment : a theoretical CONOPS for space object identification ». Thesis, Monterey, California : Naval Postgraduate School, 2014. http://hdl.handle.net/10945/42623.

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Approved for public release; distribution is unlimited
Space Situational Awareness and Space Object Identification are vital to discovering and assessing space-based threats. The current ground-based mission architecture and operational concept do not provide enough detailed information on space objects to give planners and strategists a true picture of the space order of battle. This thesis looks at the possibility of using space-based assets, based on the CubeSat standard, to perform these missions to a higher level of quality. How this system would be folded into the current space systems operational concept is analyzed, as well as some recommendations for further study.
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Campbell, Victoria Violet. « Aspects of molecular ecology and population biology of Gymnadenia conopsea (L.) R. Br. in Britain ». Thesis, University of Sussex, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310966.

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Fas, Millán Miguel Ángel. « ConOps for a safe integration of multi-RPAS operations in civil airspace ». Doctoral thesis, Universitat Politècnica de Catalunya, 2019. http://hdl.handle.net/10803/667999.

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The gradual integration of remotely piloted aircraft systems (RPAS) in civil airspace, sharing airways with commercial flights, is expected to be completed once the legal issues and those regarding the unmanned traffic management are solved. This will open the floodgates to a myriad of new services, with a demand that will probably face a lack of pilots, a situation already present in the manned case. Multi-RPAS operations could be a solution, if correctly addressed. The thesis proposes a framework that pursues the feasibility, from a human factors perspective, of having a single pilot/aircrew controlling several RPAS concurrently in non-segregated airspace. Such feasibility implies that this multitasking should be safe, and not interfere with the job of the air traffic controllers due to delays or errors associated to the parallel piloting. To this extent, a set of tools and measures are suggested, which include workload balance and prediction, action monitoring and interface usability. The management of the workload takes into account the cognitive profile of each pilot to determine their limitations and time requirements while executing the tasks. Based on these profiles, the scheduling seeks the concurrent piloting while providing a safe margin of total workload, but also the flexibility in the strategies chosen for executing the tasks. The balance of the workload among pilots, a necessary safety measure, requires the prediction of it; this would be done based on the aggregation of different sources of information like aircraft readings, scheduled tasks, external reports and a suggested map of expected workload drivers. Monitorings are justified by the fact that concurrent piloting could be misleading, so the system provides a safety check, acting as a kind of first officer. The reason behind the focus put on usability is that a handy interface providing an appropriate awareness is an essential requirement in multi-RPAS operations. While multiplying the productivity is the main goal, it also offers benefits for a one-pilot-one-aircraft ratio, as it provides extra safety measures or the possiblity to parallelise other roles in the flightcrew. To illustrate its potential, a prototype was implemented and some experiments with pseudo-pilots conducted to compare the performance with or without some of the features. These showed a decrease in the number of errors, oversights, and subjective stress, and were useful to inspire improvements. Some components of the framework could be leveraged outside of it. For instance, it relies on the exploitation of the potential of Controler-Pilot Data Link Communications (CPDLC), anticipating a future widespread implementation and full use. A CPDLC display was designed to reduce the head-down of current implementations and provide a more descriptive status of the communications, both key aspects for the quick response that a multi-RPAS pilot could require. As a standalone application, it could be used by pilots and controllers to train the CPDLC phraseology and composition rules, or as an inspiration for future implementations. Its connectivity middleware allows the simulation of different scenarios of Quality of Service for the link, which can be used to train the procedures when related problems arise. Also, the implementation of the suggested map of workload could serve to air traffic management analysts to get the perspective of the pilots during the operations and detect hot spots. The safety measures and monitorings were positively evaluated by the pilots and controllers surveyed, even when some constituted redundant checks to existing air traffic control monitoring tools. The CPDLC display was quite well considered also to be used by controllers, who found it intuitive, quick, and that the information was clearly displayed and at hand. Finally, the handover procedure suggested was well evaluated to avoid the errors arising during the process of control migration.
La integración de los sistemas aéreos pilotados de forma remota (RPAS) en espacio aéreo civil será una realidad una vez se resuelvan los temas legales pendientes o las particularidades en lo referente al control del tráfico aéreo. Esto supondrá el pistoletazo de salida a una amplia gama de servicios, con una demanda que probablemente se enfrentará a una carestía de pilotos, situación que ya se da en el caso de los vuelos tripulados. Las operaciones multi-RPAS, implementadas de forma correcta, podrían paliar este problema. La tesis propone un marco operativo para la viabilidad, a nivel de factores humanos, de que cada piloto o tripulación pueda controlar simultáneamente varios RPAS en espacio aéreo no segregado. Dicha viabilidad implica que estas operaciones sean seguras y no interfieran en el trabajo de los controladores debido a retardos o errores asociados al hecho de pilotar varios aviones. Por ello, se sugiere un conjunto de herramientas y medidas que incluyen la predicción y balanceo de la carga de trabajo, monitoreo de acciones y una adecuada usabilidad de la interfaz. La gestión de la carga de trabajo toma en cuenta los perfiles cognitivos de los pilotos para determinar sus limitaciones y tiempo de ejecución de las tareas. Basándose en estos, se busca una asignación de vuelos con un margen seguro de carga de trabajo total pero también flexibilidad en la estrategia elegida para lidiar con las tareas concurrentes. El balanceo de la carga de trabajo entre los pilotos requiere la predicción del flujo de tareas; esta se basará en tantas fuentes de información como estén disponibles: telemetría, tareas planificadas, partes o un sugerido mapa de factores de carga de trabajo. La monitorización se justifica porque controlar distintos vuelos de forma concurrente puede llevar a confusiones. El sistema cotejará pues las acciones, en una suerte de primer oficial. La usabilidad es clave en el caso multi-RPAS, donde es imperativo una interfaz que permita una respuesta y acceso a la información rápidos, con una clara descripción del estado de las operaciones. Pese a que el principal objetivo del concepto es el aumento de la productividad de los pilotos, este ofrecería beneficios aun cuando a cada piloto se asignase un único vuelo, por sus medidas de seguridad complementarias, o la posibilidad de que la operatividad concurrente se traslade a otros roles de la tripulación. Para ilustrar su potencial, se implementó un prototipo con el que se llevó a cabo experimentos con pseudo-pilotos para comprobar la efectividad de algunas medidas. Estos mostraron una reducción en el número de errores, olvidos y estrés subjetivo, y sirvieron para inspirar mejoras. Algunas piezas del sistema pueden ser útiles fuera de este. Por ejemplo, se explota el potencial de las comunicaciones mediante enlace de datos (CPDLC), anticipándose a su futura implementación y uso extendidos y se diseñó una interfaz CPDLC que redujese el lento manejo de las actuales, con un estado más claro de las comunicaciones. Esta, de forma aislada, podría utilizarse para entrenar a pilotos y controladores en las reglas de composición, o como inspiración a futuros diseños. El software utilizado permite la simulación de escenarios de calidad del enlace, que permitirían practicar los procedimientos asociados a los problemas que pueden surgir en estos. Y el mapa de factores de carga de trabajo que se sugiere, podría ser utilizado para analizar la integración RPAS. Las medidas propuestas fueron positivamente evaluadas por los pilotos y controladores encuestados, aun cuando algunas suponían comprobaciones redundantes, ya presentes en herramientas de control de tráfico aéreo. La interfaz CPDLC, en principio orientada a pilotos, gustó también a controladores por intuitiva, de rápido manejo, y con la información accesible. Finalmente, el procedimiento de migración de control sugerido fue considerado interesante para evitar los errores que surgen durante el proceso de migración de control
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Crawford, Frederick L. « A comparative analysis of wiki discretionary access control in a CONOPS environment ». Thesis, Monterey, Calif. : Naval Postgraduate School, 2008. http://edocs.nps.edu/npspubs/scholarly/theses/2008/Dec/08Dec%5FCrawford.pdf.

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Thesis (M.S. in Systems Technology (Command, Control, and Communications (C3)))--Naval Postgraduate School, December 2008.
Thesis Advisor(s): Pfeiffer, Karl. "December 2008." Description based on title screen as viewed on January 28, 2009. Includes bibliographical references (p. 73-75). Also available in print.
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Olofsson, Caroliné. « Pollination niches of Gymnadenia conopsea and G. densiflora in pure and mixed populations : evidence for character displacement ? » Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-435219.

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Reproductive isolation can be achieved through multiple types of barriers and is essential for speciation. In flowering plants, pre-pollination barriers (e.g. differentiation in pollination niches) are believed to be the most efficient at preventing gene flow across species boundaries. In closely related species that come into secondary contact, such barriers can evolve to prevent competition for pollinator service and/or interspecific pollen transfer, which can have fitness costs. Hence pollination niche differentiation should be stronger in sympatric populations than in allopatric populations (i.e. character displacement). To investigate the differences in pollination niches and to see if it is consistent with a hypothesis of character displacement, I used the two closely related and phenotypically similar orchid species, Gymnadenia conopsea and G. densiflora. I sampled mixed and pure populations of G. conopsea and G. densiflora on Öland during the summer of 2020. In these populations, I used video cameras and pollinator catches to record pollinator activity and characterize the composition of pollinator communities. Estimation of pollinator efficiency was also assessed by analyzing the number of pollinia carried by each pollinator. Contrary to my expectations, I found that both orchids had their visitation peak during the night and that the most frequent and efficient pollinators were Autographa gamma or Deilephila porcellus for both of them. Furthermore, no increased differentiation between the two species was found in mixed compared to pure populations. My results suggest that plant-pollinator interactions do not act as efficient pre-pollination barriers in these two orchid species, and that competition for pollinator service and through interspecific pollen transfer seem to be too weak to drive pollination niche partitioning.
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Kupka, Kasper. « Effects of population size, density and local environment on the population dynamics of the fragrant orchid (Gymnadenia conopsea) ». Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-447703.

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A wide majority of orchid populations are decreasing due to habitat fragmentation and to changes in land management. Population size, density and habitat quality are factors that are expected to be positively related to the viability and future growth of a population. We evaluated if population size, density and soil organic matter were good predictors of growth, survival, flowering, recruitment, and growth rate in 18 populations of the long-lived orchid Gymnadenia conopsea. We followed the populations for four years. Recruitment in 2020 increased with population size, and survival in 2018 was higher in denser populations. However, flowering probability and number of flowers both decreased with population size in 2018. Soil organic matter did not significantly influence any vital rate. In total, the studied population factors could explain very little of the variation in demography. The matrix modelling showed that 14 of the 18 populations had a positive stochastic growth rate, even with an increased probability of summer drought (scenario with 50% of the years equal to the dry summer of 2018). In the populations with negative growth rate, the probability of quasi-extinction in the next 50 years varied from 90 to 100%. Declining populations were characterized by low survival following the dry year. In sum, population size, density and soil organic matter did not convincingly explain variation in growth rate of G. conopsea, suggesting that other environmental factors are responsible of governing variation in vitals rates and population dynamics.
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Geiger, Randy E. « Experimental design and analysis of M1A1 commander/gunner performance during CONOPS using the U-COFT ». Thesis, Monterey, California. Naval Postgraduate School, 1989. http://hdl.handle.net/10945/27043.

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Livres sur le sujet "Conopsis"

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United States Government Printing Office. Concept of operations (ConOps V1.0) for the future digital system : Final. [Washington, D.C.] : U.S. G.P.O., 2004.

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IEEE Computer Society. Software Engineering Standards Committee., Institute of Electrical and Electronics Engineers. et IEEE-SA Standards Board, dir. IEEE guide for information technology-- : System definition-- concept of operations (ConOps) document. New York, N.Y., USA : Institute of Electrical and Electronics Engineers, 1998.

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Geiger, Randy E. Experimental design and analysis of M1A1 commander/gunner performance during CONOPS using the U-COFT. Monterey, Calif : Naval Postgraduate School, 1989.

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Wargaming and Simulation as Tools for CONOPS Development. Storming Media, 2004.

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Campbell, Violet Victoria. Aspects of molecular ecology and population biology of gymnadenia conopsea (L.) R.Br. in Britain. 2000.

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Chapitres de livres sur le sujet "Conopsis"

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Cooke, M., et E. Murphy. « Moving through crisis and resilience : An activity-centred CONOPS of CI organisations ». Dans Risk, Reliability and Safety : Innovating Theory and Practice, 510–17. Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742 : CRC Press, 2016. http://dx.doi.org/10.1201/9781315374987-78.

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O. Freeze, Thomas, Tien M. Nguyen et Charles H. Lee. « System-of-Systems Enterprise CONOPS Assessment Decision Support Tools ». Dans Systems of Systems - Engineering, Modeling, Simulation and Analysis [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.94123.

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This chapter discusses the implementation of System-of-Systems Enterprise Architecture (SOSEA) CONOPS assessment framework and models in Matlab, and presents preliminary results concerning SOSEA resiliency in the presence of a notional Radio Frequency Interference (RFI) scenario. The chapter provides an overview of the SOSEA CONOPS Assessment Framework, and discusses related SOS Resiliency Models including Resilient Assessment Index Against RFI (RAI-RFI), Spectrum Resiliency Assessment Index (SRAI), and Resilient Capacity (RC).
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Kryukov, Lavr, Andrey Vorotyntsev et Aleksandr Shirokov. « Tuberoid Orchids : Micropropagation for Biomedical Applications ». Dans Micropropagation of Medicinal Plants, 212–31. BENTHAM SCIENCE PUBLISHERS, 2024. http://dx.doi.org/10.2174/9789815196146124010012.

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The article presents the developed protocol for the propagation of tuberous orchids and their organs. The protocol allows for the cultivation of materials for reintroduction, restoration of disturbed populations and biomedical research. A phytochemical analysis of this plant group was conducted for the first time, confirming their medicinal properties. Micropropagation was employed to achieve this objective. The study focused on nine species of tuberous orchids from the Orchidaceae family: Dactylorhiza traunsteineri, D. maculata, D. fuchsii, D. incarnata, D. urvilleana, D. baltica, Gymnadenia conopsea, G. conopsea f. gigantea and Orchis militaris. The results demonstrated that these species contain chemical substances with potential physiological activities. For example, squalene exhibited positive effects such as antifungal, anticancer, antibacterial, antioxidant, and others. Additionally, other identified chemical substances demonstrated antiproliferative and proapoptotic activities against colon cancer, as well as antibacterial, anti-inflammatory, antioxidant, antitumoral, and antifungal properties.
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« CHAPTER THREE. Chancas and Conopas ». Dans Idolatry and Its Enemies, 75–100. Princeton University Press, 1997. http://dx.doi.org/10.1515/9780691187334-008.

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Ganter, Sebastian, Alberto Balbi, Jörg Finger, Lena Schäffer, Fabio Bolletta, Clemente Fuggini, Alexander Stolz et Ivo Häring. « 13. Conceptual Model and CONOPS for Secure and Resilient Gas Critical Infrastructure ». Dans Cyber-Physical Threat Intelligence for Critical Infrastructures Security : Securing Critical Infrastructures in Air Transport, Water, Gas, Healthcare, Finance and Industry. Now Publishers, 2021. http://dx.doi.org/10.1561/9781680838237.ch13.

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M. Nguyen, Tien. « SOS Enterprise, SOSE CONOPS, SOSE Architecture Design Approach : A Perspective on Space and Airborne Systems ». Dans Systems of Systems - Engineering, Modeling, Simulation and Analysis [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.92674.

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Actes de conférences sur le sujet "Conopsis"

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Lemley, Sara, Juan Sandoval et Nicholas Sapankevych. « Open border CONOPS simulation ». Dans 2013 IEEE International Conference on Technologies for Homeland Security (HST). IEEE, 2013. http://dx.doi.org/10.1109/ths.2013.6698974.

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Lissone, Mike, Dominique Colin et Pascal Barret. « Eurocontrol RPAS ATM CONOPS ». Dans 2017 Integrated Communications, Navigation and Surveillance Conference (ICNS). IEEE, 2017. http://dx.doi.org/10.1109/icnsurv.2017.8012044.

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Noguero, Javier. « Limitless Automation : ANY CONOPS ». Dans SpaceOps 2012. Reston, Virigina : American Institute of Aeronautics and Astronautics, 2012. http://dx.doi.org/10.2514/6.2012-1272487.

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Maly, Markus, Julius Hoffelner, Christoph Krammer, Maximilian Wechner, Jerg Jaisle et Florian Holzapfel. « Concept of Operations in Aviation Industry – A Procedure Based Approach for Developing Novel Aerial Systems ». Dans Vertical Flight Society 79th Annual Forum & Technology Display. The Vertical Flight Society, 2023. http://dx.doi.org/10.4050/f-0079-2023-18133.

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In the last decades, Unmanned Aerial Systems (UAS) have been used extensively for various purposes. Consideringthe advantages of UAS compared to conventional manned aircraft, such as lower manufacturing and operating costs, UAS are creating a new industry with sizable economic potential. In this article, we introduce a novel procedure-based approach for developing a Concept of Operations (ConOps) document that integrates best practices from the aviation industry. A ConOps document should be defined to develop and operate a UAS safely. Since different guidelines are available that attend to different ConOps content, there needs to be a transparent process definition of how to generate a ConOps. In previous works, we developed and published a procedure-based methodology for aircraft design, initially intended for the development of optionally piloted vehicles.The ConOps process in this paper builds upon the existing aircraft development process and follows aviation standards, for example, SAE ARP4754A. Hence, ensuring maximum traceability, conformity, and integration with existing aviation guidelines is achievable while keeping flexibility as high as possible and supporting an agile development process. This novel process is independent of the mission goals and can be applied to manned, unmanned, and optionally piloted aircraft. The first insights from our practical experience in applying the new process are also presented.
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Levy, Benjamin S. « Draft Conops and departure manager prototype ». Dans 2010 Integrated Communications, Navigation and Surveillance Conference (ICNS). IEEE, 2010. http://dx.doi.org/10.1109/icnsurv.2010.5503236.

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York, Andrew M. « Tac recce CONOPS : today and tomorrow ». Dans SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, sous la direction de Wallace G. Fishell. SPIE, 1999. http://dx.doi.org/10.1117/12.372658.

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Laarni, Jari, et Antti Väätänen. « Development of a Concept of Operations for an autonomous tram system ». Dans Intelligent Human Systems Integration (IHSI 2023) Integrating People and Intelligent Systems. AHFE International, 2023. http://dx.doi.org/10.54941/ahfe1002875.

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Public transportation is becoming smart and autonomous. Also trams and their operation environments are becoming autonomous, and it has been envisioned that in the near future trams could drive among other traffic in all conditions and circumstances. On the other hand, there are several challenges in the development of autonomous tram systems, since trams are operating in urban environments where high demands are set for sensors and sensor networks aiming at reliable detection of pedestrians and other vehicles. We are developing ‘The SmartRail ecosystem’ setting, which promotes transition from traditional engineering and manufacturing towards more advanced service and business ecosystem enabling a smart autonomous tram and integrated digital services for its whole life-cycle. The paper will present the development of a Concept of Operations (ConOps) for autonomous smart trams to demonstrate how they can be applied and utilized in public transportation in the future. The proposed ConOps can be considered as a boundary object in the design, validation or procurement of autonomous trams. We also propose that the ConOps should be maintained throughout the system life-cycle as an overview description and definition of overall goals and policies.A ConOps is a high-level description of how the elements of a system and entities in its environment interact in order to achieve their stated goals. The ConOps for an autonomous tram system will include, among others, the following information: overall goals and constraints of the SmartRail system, overall environmental characteristics, other stakeholders, main system elements and functions, operational states and scenarios, high-level performance requirements, system advantages and disadvantages, and human-autonomy teaming concept. Four different operational states will be considered: 1) starting a morning shift at the tram garage; 2) approaching a pedestrian crossing; 3) approaching and passing a tram stop; and 4) crossing other vehicles. The effect of seasonal conditions and weather events are also considered. A ConOps diagram has been drawn to illustrate how different stakeholders and the operating environment interact, and what kind of information is shared between different stakeholders.A special attention will be paid on the development of human-autonomy teaming concept for smart autonomous tram systems. A typical autonomous framework is based on a cross-tabulation of a scale of level of automation with stages of human information processing for a set of operational situations. We propose flexible automation solution in which the control function can be flexibly allocated to the automation or to the human operator at different phases of a tram route.Various knowledge elicitation techniques were used to gather relevant information for the ConOps: The development of the ConOps is based on a literature review, semi-structured interviews of tram drivers and trainers, and group interviews of experts working on research and development of autonomous road vehicles.
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Gerdes, John, Eric Holder, Nathan Beals et James Humann. « A Concept of Operations for Advanced Manufacturing of Small Unmanned Aircraft Systems for Marine Squads ». Dans Vertical Flight Society 76th Annual Forum & Technology Display. The Vertical Flight Society, 2020. http://dx.doi.org/10.4050/f-0076-2020-16302.

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A concept of operations (CONOPS) is proposed for providing U.S. Marine Corps squads with mission-tailored small unmanned aerial systems (SUASs) using additive manufacturing. This is done on a tactically relevant timescale, ensuring that design improvements can be fielded far faster than with a traditional acquisition process. The CONOPS includes the following stages: mission planning and UAS selection/allocation/modification, order production and transmission, additive manufacturing, assembly and quality control, packaging and delivery, field assembly, field training and guidance, pre-mission checks, and mission use. The stages were developed through extensive discussions and interviews with Marine end users and iterated through several rounds of realistic wargaming. A comprehensive one-week training session was created that equipped Marines to demonstrate all design, manufacturing, and operational skills outlined in the CONOPS.
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Suri, Sahil, Lars Peterson, Alexander Kaptein, Fernando Cerezo, Victoriano Moreno et Miguel Angel Garcia Primo. « TerraSAR-X/PAZ constellation : CONOPS, highlights and access solution ». Dans 2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR). IEEE, 2015. http://dx.doi.org/10.1109/apsar.2015.7306183.

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Gans, Howard D., et Macaulay Osaisai. « Developing Space Vehicle Payload Commands Using a Model-based CONOPS ». Dans 2018 AIAA SPACE and Astronautics Forum and Exposition. Reston, Virginia : American Institute of Aeronautics and Astronautics, 2018. http://dx.doi.org/10.2514/6.2018-5390.

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Rapports d'organisations sur le sujet "Conopsis"

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Brotz, Jay Kristoffer, et Sharon M. Deland. Buddy Tag CONOPS and Requirements. Office of Scientific and Technical Information (OSTI), décembre 2015. http://dx.doi.org/10.2172/1233571.

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Feaga, Keith P. The USAF Capabilities Based CONOPS Construct. Fort Belvoir, VA : Defense Technical Information Center, mai 2004. http://dx.doi.org/10.21236/ada423632.

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Wathen, Alexander M. CADRE Quick-Look : Airspace Management in Global CONOPs. Fort Belvoir, VA : Defense Technical Information Center, janvier 2004. http://dx.doi.org/10.21236/ada425908.

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O'Sullivan, Patrick. RCT Continuing Training : RCT Job Coverage and CONOPS. Office of Scientific and Technical Information (OSTI), juin 2023. http://dx.doi.org/10.2172/1984997.

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Cloutier, Robert, Ali Mostashari, Sara McComb, Abhijit Deshmukh, Jon Wade, Deanna Kennedy et Peter Korfiatis. Investigation of a Graphical CONOPS Development Environment for Agile Systems Engineering. Fort Belvoir, VA : Defense Technical Information Center, octobre 2009. http://dx.doi.org/10.21236/ada548692.

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Cloutier, Robert. Graphical CONOPS Prototype to Demonstrate Emerging Methods, Processes, and Tools at ARDEC. Fort Belvoir, VA : Defense Technical Information Center, mars 2012. http://dx.doi.org/10.21236/ada583515.

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MacGregor, Timothy B. Reassessing Tanker Employment CONOPS and Command and Control to Maximize Air Mobility Capacity. Fort Belvoir, VA : Defense Technical Information Center, février 2004. http://dx.doi.org/10.21236/ada422820.

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Cloutier, Robert, Ali Mostashari, Sara McComb, Abhijit Deshmukh, Jon Wade, Deanna Kennedy, Peter Korfiatis et Anne Carrigy. Investigation of a Graphical CONOPS Development Environment for Agile Systems Engineering - Phase 2. Fort Belvoir, VA : Defense Technical Information Center, mai 2010. http://dx.doi.org/10.21236/ada545258.

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Young, Eric C. The U.S. Navy's Role in Executing the Maritime CONOPS for U.S. Homeland Security/Defense. Fort Belvoir, VA : Defense Technical Information Center, mai 2002. http://dx.doi.org/10.21236/ada405853.

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Cloutier, Robert, Sara McComb, Abhijit Deshmukh, Teresa Zigh, Peter Korfiatis, Benham Esfahbod, Peizhu Zhang et Keith Hall. Prototype of a Graphical CONOPS (Concept of Operations) Development Environment for Agile Systems Engineering. Fort Belvoir, VA : Defense Technical Information Center, mars 2012. http://dx.doi.org/10.21236/ada582528.

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