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Littérature scientifique sur le sujet « Mission 3MI »

Auteur : Grafiati

Publié le 19 avril 2025

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Articles de revues sur le sujet "Mission 3MI"

Waquet, Fabien, et Isabelle Chiapello. « Aero-HdF : une campagne aéroportée dédiée aux aérosols et à la préparation de la mission spatiale européenne 3MI ». La Météorologie, n^o 123 (2023) : 007. http://dx.doi.org/10.37053/lameteorologie-2023-0086.

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Fougnie, Bertrand, Thierry Marbach, Antoine Lacan, Ruediger Lang, Peter Schlüssel, Gabriele Poli, Rosemary Munro et André B. Couto. « The multi-viewing multi-channel multi-polarisation imager – Overview of the 3MI polarimetric mission for aerosol and cloud characterization ». Journal of Quantitative Spectroscopy and Radiative Transfer 219 (novembre 2018) : 23–32. http://dx.doi.org/10.1016/j.jqsrt.2018.07.008.

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Tilstra, Lieuwe G., Martin de Graaf, Victor J. H. Trees, Pavel Litvinov, Oleg Dubovik et Piet Stammes. « A directional surface reflectance climatology determined from TROPOMI observations ». Atmospheric Measurement Techniques 17, n^o 7 (17 avril 2024) : 2235–56. http://dx.doi.org/10.5194/amt-17-2235-2024.

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Abstract. In this paper, we introduce a spectral surface reflectivity climatology based on observations made by TROPOMI on board the Sentinel-5P satellite. The database contains the directionally dependent Lambertian-equivalent reflectivity (DLER) of the Earth's surface for 21 wavelength bands ranging from 328 to 2314 nm and for each calendar month. The spatial resolution of the database grid is 0.125° × 0.125°. A recently developed cloud shadow detection technique is implemented to avoid dark scenes due to cloud shadow. In the database, the anisotropy of the surface reflection is described using a third-order parameterisation of the viewing angle dependence. The viewing angle dependence of the DLER is analysed globally and for a selection of surface type regions. The dependence is found to agree with the viewing angle dependence found in the GOME-2 surface DLER database. Differences exist, related to the actual solar position. On average, the viewing angle dependence in TROPOMI DLER is weaker than for GOME-2 DLER, but still important. Validation of the new database was first performed by comparison of the non-directional TROPOMI surface LER with heritage LER databases based on GOME-1, OMI, SCIAMACHY, and GOME-2 data. Agreement was found within 0.002–0.02 in the UV-VIS (below 500 nm), up to 0.003 in the NIR (670–772 nm), and below 0.001 in the short-wave infrared (SWIR) (2314 nm). These performance numbers are dominated by the performance over ocean, but they are in most cases also representative for land surfaces. For the validation of the directional TROPOMI surface DLER, we made use of comparison with the MODIS surface bi-directional reflectance distribution function (BRDF) for a selection of surface type regions. In all cases the DLER performed significantly better than the traditional LER, and we found good agreement with the MODIS surface BRDF. The TROPOMI surface DLER database is a clear improvement on previous surface albedo databases and can be used as input not only for satellite retrievals from TROPOMI observations, but also for retrievals from observations from other polar-orbiting satellite instruments provided that their equator crossing time is close to that of TROPOMI. The algorithm that is introduced in this paper can be used for the retrieval of surface reflectivity climatologies from other polar satellite missions as well, including Ocean and Land Colour Instrument (OLCI) on the Sentinel-3 satellites, Sentinel-5, and Multi-viewing Multi-channel Multi-polarisation imager (3MI) on the MetOp-SG-A1 satellite to be launched in 2025, as well as the future CO2M mission.

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Faqih, Ahmad. « PERGUMULAN ISLAM DAN BUDAYA JAWA DI LERENG GUNUNG MERBABU PERSPEKTIF DAKWAH ». Jurnal Ilmu Dakwah 34, n^o 1 (15 juillet 2014) : 24. http://dx.doi.org/10.21580/jid.34i.1.45.

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Pakis people who live at the valley of Mount Merbabu is the representative of syncretic Javanese Muslims. As Muslims, they carry out the Islamic shari'ah. But as Javannese people, they perform Javanese cultural traditions such as shamanism. They practice it as a way to solve their life problems, such as to cure diseases, to find lost things, and to win the competition in the selection of certain positions. By using a qualitative approach, the study found a character positive change as a result of consistently da’wah efforts by the preachers. They have implemented a kind of cultural da’wah, as a strategy to encourage the society to change their shamanism tradition gradually. The preachers realize that this tradition is dominant in the society, so that if they used a structural strategy of da’wah, social upheavals could happen among the society in which finally would fail the da’wah mission.***Masyarakat Desa Pakis yang hidup di kaki Gunung Merbabu, merupakan reperesentasi umat Islam Jawa dengan karakter sinkretik. Mereka beragama Islam dan menjalankan syari’at-Nya, tetapi sebagai orang Jawa mereka melaksanakan tradisi dan budaya Jawa seperti perdukunan. Perilaku berdukun dilakukan masyarakat untuk menjalani kehidupan sehari-hari dan cara untuk menyelesaikan problem yang mereka hadapi. Seperti usaha untuk menyembuhkan penyakit, mencari benda-benda yang hilang, memenangkan persaingan dalam pemilihan jabatan tertentu. Dengan pendekatan kualitatif, penelitian ini menemukan gejala perubahan karakter itu yang positif sebagai hasil nyata dari upaya dakwah yang dilakukan secara konsisten dan berkesinambungan.Para da’i menerapkan dakwah kultural, sebagai strategi untuk mendorong perubahan perilaku masyarakat dari berdukun secara perlahan. Da’i juga menyadari bahwa budaya berdukun cukup dominan di masyarakat,sehingga jika digunakan strategi struktural dikhawatirkan akan menimbulkan kegoncangan sosial di masyarakat. Pada akhirnya dakwah yang dilakukan akan menemukan kegagalan.

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Tesch, Per A., Ferdinand von Walden, Thomas Gustafsson, Richard M. Linnehan et Todd A. Trappe. « Skeletal muscle proteolysis in response to short-term unloading in humans ». Journal of Applied Physiology 105, n^o 3 (septembre 2008) : 902–6. http://dx.doi.org/10.1152/japplphysiol.90558.2008.

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Skeletal muscle atrophy is evident after muscle disuse, unloading, or spaceflight and results from decreased protein content as a consequence of decreased protein synthesis, increased protein breakdown or both. At this time, there are essentially no human data describing proteolysis in skeletal muscle undergoing atrophy on Earth or in space, primarily due to lack of valid and accurate methodology. This particular study aimed at assessing the effects of short-term unloading on the muscle contractile proteolysis rate. Eight men were subjected to 72-h unilateral lower limb suspension (ULLS) and intramuscular interstitial levels of the naturally occurring proteolytic tracer 3-methylhistidine (3MH) were measured by means of microdialysis before and on completion of this intervention. The 3MH concentration following 72-h ULLS (2.01 ± 0.22 nmol/ml) was 44% higher ( P < 0.05) than before ULLS (1.56 ± 0.20 nmol/ml). The present experimental model and the employed method determining 3MH in microdialysates present a promising tool for monitoring skeletal muscle proteolysis or metabolism of specific muscles during conditions resulting in atrophy caused by, e.g., disuse and real or simulated microgravity. This study provides evidence that the atrophic processes are evoked rapidly and within 72 h of unloading and suggests that countermeasures should be employed in the early stages of space missions to offset or prevent muscle loss during the period when the rate of muscle atrophy is the highest.

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Thiery-Vuillemin, Antoine, Gilles Crehange, Thierry Lebret, Nathalie Pello Leprince Ringuet, Valérie Perrot et Jerome Rigaud. « Main reasons of choice of formulation and route of triptorelin treatment initiated in patients with prostate cancer (PCa) : TALISMAN study. » Journal of Clinical Oncology 41, n^o 6_suppl (20 février 2023) : 104. http://dx.doi.org/10.1200/jco.2023.41.6_suppl.104.

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104 Background: Modalities of use of androgen deprivation therapy (ADT), like triptorelin, in real life, at the era of new strategies in advanced stages, lack of recent data. Our purpose here was to describe main reasons of choice of formulation and route (F&R) of triptorelin treatment (Tt) declared by the physician. Patient comorbidities, cancer aggressiveness and physician habits may influence their choices. Methods: Initiated in 2020, a prospective, multicenter, non-interventional study is ongoing in France (TALISMAN, NCT04593420). Patients with histologically confirmed PCa, eligible for ≥ 12-month triptorelin Tt within its label were enrolled. Interim analysis of baseline data was planned when 50% of 786 planned patients were enrolled. Modalities of use, including F&R of triptorelin prescribed [monthly intramuscular (1mIM), every 3 months subcutaneous (3mSC) or intramuscular (3mIM), every 6 months intramuscular (6mIM)], were described. Results: 509 patients were included in the interim analysis. Overall population was presented at ASCO-GU22. Subgroups of F&R are presented here. Main F&R prescribed was 3mSC (70.7%). Main baseline parameters in F&R subgroups are presented (except for 1mIM, 4 patients (0.8%)). 31 patients had missing F&R data and were not included in subgroups. 62.1% of patients overall received at least one concomitant systemic Tt for comorbidity at baseline (58.2% in 3mIM, 61.7% in 3mSC and 6mIM). 18.6% and 13.0% of patients overall received, respectively, platelet aggregation inhibitor and anticoagulant; they were 20.9% and 13.8% in 3mSC, 7.3% and 5.5% in 3mIM, 18.5% and 11.1% in 6mIM. Conclusions: Main reason of choice of F&R of triptorelin was physician preferred F&R (47.7%); noticeable reasons included anticoagulants for the choice of 3mSC, planned total duration of Tt for 3mIM and 6mIM, and potential impact on compliance for 6mIM. As the covid pandemic may change the management of patients with prostate cancer, longer acting formulations may become more attractive. Clinical trial information: NCT04593420 . [Table: see text]

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Abdul Malik, Nida Husna, et Dadan Rusmana. « PENDIDIKAN DAN PEMBELAJARAN AL-QUR’AN DI SEKOLAH ». Bayani 3, n^o 1 (5 juin 2023) : 64–72. http://dx.doi.org/10.52496/bayaniv.3i.1pp64-72.

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This article discusses the education and teaching of the Qur’an in schools. In order to produce a generation that excels in ethics, akhlaqul karimah. So each school has different visions and missions, with these differences there is a common thread that can be applied simultaneously, namely the application of learning the Qur'an. This study will discuss the methods used in learning the Qur’an, common problems, and solutions to the problems of learning the Qur’an in schools. The model for writing this article is by using a descriptive-analytic methodology, based on library research. The results of this study are that there must be continuity between teachers, students, schools, parents, the environment, and their relatives. So that it will be born from every school of generations who have good morals with the basis of the Qur'an as a guide to their lives. It will also bring the souls of the students closer to the Qur'an, which is expected to bring peace, prosperity, and happiness not only in this world, but also in the hereafter.

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MIZUNO, SEIGI, HONG JIANG et HIROSHI TOCHIHARA. « COMPLETION OF THE DETERMINATION OF COMPLEX SURFACE STRUCTURES FORMED ON LOW-INDEX PLANES OF COPPER SINGLE CRYSTAL BY Li DEPOSITION : Cu(110)-(4×1)-3Li ». Surface Review and Letters 04, n^o 06 (décembre 1997) : 1221–26. http://dx.doi.org/10.1142/s0218625x97001577.

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With increasing Li coverage on Cu(110), (n×1)(4≤n≤8) structures follow the (1×2) missing-row structure at room temperature. We determine the (4×1) structure by a dynamical low-energy electron diffraction (LEED) analysis with symmetrized automated tensor LEED. This completes the solution of the complex surface structures formed on low-index planes of copper single crystal by Li deposition. Every fourth Cu row in the [001] direction is substituted by Li atoms and the remaining Cu rows are covered by Li adatoms. Features of this structure, denoted as Cu (110)-(4×1)-3 Li , are very similar to those of the previously determined Cu (001)-(3×3)-5 Li , Cu (001)-(4×4)-10 Li and Cu (111)-(2×2)-3 Li structures.

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Bryk, Marta, Jakub Chwastek, Magdalena Kostrzewa, Jakub Mlost, Aleksandra Pędracka et Katarzyna Starowicz. « Alterations in Anandamide Synthesis and Degradation during Osteoarthritis Progression in an Animal Model ». International Journal of Molecular Sciences 21, n^o 19 (6 octobre 2020) : 7381. http://dx.doi.org/10.3390/ijms21197381.

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Osteoarthritis (OA) is a degenerative joint disease manifested by movement limitations and chronic pain. Endocannabinoid system (ECS) may modulate nociception via cannabinoid and TRPV1 receptors. The purpose of our study was to examine alterations in the spinal and joint endocannabinoid system during pain development in an animal model of OA. Wistar rats received intra-articular injection of 3mg of sodium monoiodoacetate (MIA) into the knee joint. Animals were sacrificed on day 2, 7, 14, 21, 28 after injection and lumbar spinal cord, cartilage and synovium were collected. Changes in the transcription levels of the ECS elements were measured. At the spinal level, gene expression levels of the cannabinoid and TRPV1 receptors as well as enzymes involved in anandamide synthesis and degradation were elevated in the advanced OA phase. In the joint, an important role of the synovium was demonstrated, since cartilage degeneration resulted in attenuation of the changes in the gene expression. Enzymes responsible for anandamide synthesis and degradation were upregulated particularly in the early stages of OA, presumably in response to early local joint inflammation. The presented study provides missing information about the MIA-induced OA model and encourages the development of a therapy focused on the molecular role of ECS.

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Pasala, Srinivasa Rao, et Mahesh Rudra. « The Performance of Area, Production and Productivity of Pulses in Andhra Pradesh (With Reference to 13 Districts of Andhra Pradesh) ». IRA-International Journal of Management & ; Social Sciences (ISSN 2455-2267) 6, n^o 1 (18 février 2017) : 97. http://dx.doi.org/10.21013/jmss.v6.n1.p13.

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<div>Former Prime Minister Shri Lal Bahadur Shastri had given slogan of “ Jai Jawan, Jai Kisan”, Now the Prime Minister Shri Narendra Modi call to farmers to fill the granaries of nation, the farmers left no stone unturned to live up to his aspirations. He appeal each and every farmer , if they have five acre field, then use at least one acre land for cultivation of pulses and legumes so that India need not import it and pulses, which are basic source of protein are available to the poor at affordable price. In Andhra Pradesh (13 districts) the area under pulses is 13, 73,544 hectares in 2010-11 which accounted for 23.62 per cent in total food crops area, whereas the same in 2014-15 is 10,42,300 hectares which accounted for 20.03 per cent of total food crops area. Under the National Food Security Mission (NFSM) pulses being implemented in all the 13 districts of the state. An amount of Rs. 2378.04 lakhs was spent under NFSM- pulses up to 15-11-2015. An intensive analysis of data, the compound annual growth rates are very meager for area, production and productivity of pulses in Andhra Pradesh. The area, production and productivity growth rates of pulses are 0.0039, 0.026 and 0.022 respectively. The change in the growth rate of area was completely decelerated in all three periods (i.e. original, 3MA and 5MA). The same trend exhibits in production in original series. The main source of pulses growth due to yield. It is the time for the policy makers and government to concentrate on pulses production through spreading it to irrigated areas.</div>

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Thèses sur le sujet "Mission 3MI"

Djellali, Mohamed. « Développement d'une méthode d'étalonnage en vol utilisant la réflexion spéculaire à la surface de l'océan dans le cadre de la mission 3MI ». Electronic Thesis or Diss., Université de Lille (2022-....), 2024. https://pepite-depot.univ-lille.fr/ToutIDP/EDSMRE/2024/2024ULILR071.pdf.

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Cette thèse présente le développement d'une méthode innovante d'étalonnage en vol utilisant la réflexion spéculaire à la surface de l'océan, en particulier dans le cadre de la mission 3MI. Successeur des instruments POLDER/PARASOL, 3MI offre des capacités améliorées en matière d'observation multi-spectrale, permettant une surveillance précise des aérosols, des nuages et de l'atmosphère terrestre.La recherche se concentre sur l'utilisation du glitter, un phénomène naturel de réflexion se produisant à la surface de l'océan, comme cible d'étalonnage pour les radiomètres. Le glitter fournit un signal polarisé avec une forte intensité, ce qui en fait une référence utile pour l'étalonnage des instruments. Cependant, le principal défi de la méthode réside dans la modélisation précise de l'impact de la vitesse du vent de surface et des propriétés des aérosols, qui influencent toutes deux la précision de la simulation du signal réfléchi.Grâce à des études de sensibilité et des simulations de modèles, la thèse démontre qu'il est possible de minimiser ces incertitudes en se concentrant sur des zones d'invariance spécifiques au sein de la réflexion du glitter, où l'impact des paramètres géophysiques, principalement la vitesse du vent, est moins prononcé. Cette approche novatrice a été testée avec les données de la mission POLDER3/PARASOL, obtenant des simulations précises et validant la méthode pour une application potentielle à 3MI et aux futures missions satellitaires.La technique d'étalonnage proposée est significative non seulement pour améliorer les capacités d'étalonnage radiométrique de 3MI, mais aussi pour des applications plus larges sur divers instruments utilisés pour l'observation de la Terre. Elle a le potentiel de devenir une norme pour l'étalonnage en vol et le suivi temporel de celui-ci, critique notamment dans les missions de surveillance climatique et environnementale
This thesis presents the development of an innovative in-flight calibration method using the sunglint effect on the ocean surface, particularly within the context of the 3MI mission. As the successor to the POLDER/PARASOL instruments, 3MI offers improved capabilities in multi-spectral observation, enabling precise monitoring of aerosols, clouds, and the Earth's atmosphere.The research focuses on leveraging the sunglint, a natural reflection phenomenon that occurs on the ocean surface, as a calibration target for radiometers. The sunglint provides a polarized signal with high intensity, making it a useful reference for instrument calibration. However, the method's main challenge lies in accurately modeling the effect of surface wind speed and aerosol properties, both of which affect the precision of the simulated reflected signal.Through sensitivity studies and model simulations, the thesis demonstrates that it is possible to minimize these uncertainties by focusing on specific zones of invariance within the sunglint reflection, where the impact of geophysical parameters, mainly the surface wind speed, is less pronounced. This innovative approach was tested with data from the POLDER3/PARASOL mission, achieving accurate simulations and validating the method for potential application to 3MI and future satellite missions.The proposed calibration technique is significant not only for enhancing 3MI's radiometric calibration capabilities but also for broader applications across various instruments used in Earth observation. It has the potential to become a standard for in-flight calibration and its temporal monitoring which is particularly critical for climate and environmental monitoring missions

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Chapitres de livres sur le sujet "Mission 3MI"

Meli, Domenico Bertoloni. « Publication ». Dans Equivalence and Priority : Newton versus Leibniz, 126–42. Oxford University PressOxford, 1993. http://dx.doi.org/10.1093/oso/9780198539452.003.0007.

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Abstract The Tentamen appeared in the Acta Eruditorum of February 1689. At the same time Leibniz left Vienna for Venice, where he arrived on 4 March. Therefore, the essay was certainly composed in the Imperial capital. We have the manuscript draft, the final manuscript version having probably been sent to the editors of the Acta in Leipzig. The text would have been sufficiently challenging even without several misprints. Moreover, the figure was lost and had to be redrawn by Christoph Pfautz, the mathematician collaborating with the editor of the Acta Otto Mencke. As a result, the segment 3MG and the letters G at the bottom of the figure were omitted. On the basis of a manuscript diagram, I have restored the figure inserting the missing letters in angle brackets. In the footnotes I indicate Leibniz’s later emendations and explain some technical points.

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Coppens, Yves. « Un bouquet d’ancêtres ». Dans Un bouquet d’ancêtres, 153–59. CNRS Éditions, 2021. https://doi.org/10.3917/cnrs.coppe.2021.01.0153.

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C’est en 1975 que la corrélation entre l’évolution des Homininés et celle de leur environnement a été découverte ; devant la longue séquence stratigraphique (entre 700 et 800 m de puissance) du Plio-Pléistocène de la basse vallée de l’Omo, en Éthiopie, séquence remplie de Vertébrés fossiles, nous (l’expédition internationale de recherche de l’Omo), avons pu, en effet, constater que les assemblages fauniques n’étaient pas les mêmes en bas de la séquence (plus de 3Ma et faunes d’environnement humide) et en haut (moins de 2Ma et faunes, d’environnement plus sec) : un changement climatique s’était donc manifestement produit au cours de ce million d’années. Et comme ces assemblages contenaient des restes d’Homininés, différents en bas ( Australopithecus ) et en haut ( Paranthropus et Homo ), il nous a semblé possible de conclure que ce pourrait être l’ Australopithecus , qui, pour s’adapter à ce changement climatique, ait évolué en ces deux nouveaux genres, un robuste ( Paranthropus ) et un gracile ( Homo ) ! Quatre importantes expéditions paléontologiques se déroulaient en Afrique de l’Est dans ces années là, l’International Afar Research Expedition (Éthiopie), l’Omo Research Expedition (Éthiopie), l’East Rudolf Expedition (Kenya) et l’Olduvai Gorge Expedition (Tanzanie). Mais, à Olduvai, la séquence géologique commençait vers 1,8Ma (trop tard pour comprendre le processus d’adaptation), en Afar, elle se terminait vers 3 Ma (trop tôt), et à l’Est Turkana (Rudof), il y avait une lacune stratigraphique entre 3 et 2 Ma (la période du processus) ! C’est pour cela que ces changements climatiques et fauniques ont été observés pour la première fois dans la séquence dite de l’ Omo : par hasard ! En souvenir de cette découverte pionnière, j’ai appelé ce changement climatique « l’Evènement de l’(H)Omo », ou « (H)Omo Event », pour ne pas oublier que l’origine de l’Homme ( Homo ), une simple adaptation à une crise climatique, avait été comprise pour la première fois dans les dépôts sédimentaires du Plio-Pléistocène de la basse vallée de l’Omo. Je n’ai pas parlé ici des Missions ou Expéditions paléontologiques en Afrique du Sud, car elles n’avaient découvert, nulle part, de séquences sédimentaires comparables à celle de l’Omo et aucun de leurs sites n’était alors, en outre, bien daté. Comme, par ailleurs, des sites paléontologiques, fournissant des Homininés anciens (Plio-Pléistocène), ont été découverts, du Tchad à l’Afrique australe en passant donc par l’Éthiopie, le Kenya, la Tanzanie et le Malawi, tout autour de la forêt équatoriale, j’ai appelé cette zone intertropicale, notre lieu de naissance, « le berceau concentrique ». Pour tester alors cette hypothèse de la corrélation entre changement climatique et émergence de Paranthropus et d’ Homo , que nous venons d’évoquer, je propose, dans cette courte communication, un tour des sites (une dizaine) de cet anneau. Or, dans tous les sédiments datés entre 3 et 2 Ma, sans aucune exception, nous avons constaté la présence et la coexistence d’un Homininé robuste (une espèce particulière d’Australopithèque en Afar – A. garhi – et le nouveau genre Paranthropus partout ailleurs) et d’un Homininé gracile (une espèce particulière d’Australopithèque en Afrique du Sud –A. sediba- et le nouveau genre Homo partout ailleurs). Dans tous ces sites, les vertébrés et les pollens associés caractérisent un environnement assez sec, une savane ouverte ou une steppe. Et dans quelques-uns d’entre eux, ceux qui offrent une séquence sédimentaire suffisamment longue pour documenter la transition entre les premiers Australopithèques et Kenyanthropes, âgés de 4 à 3 millions d’années, et les Australopithèques tardifs, Paranthropes et Homo , l’environnement documente clairement un changement, d’un climat plus humide à un climat plus sec. Cet article a été écrit en raison des nouvelles découvertes faites en Tanzanie (Laetoli) et en Afrique du Sud (Kromdraai et Malapa), et qui confirment, si besoin était, l’hypothèse de l’Evénement l’ (H)Omo . Ce afin d’affirmer que lorsqu’une hypothèse scientifique est confirmée à chaque fois qu’elle est testée, le scientifique a l’obligation de dire que « tout a l’air de se passer comme si c’était comme ça ». Plusieurs nouvelles recherches semblent remettre actuellement en cause notre hypothèse. Elles devront simplement être confrontées à toutes les données exposées ici. Le débat reste bien sûr ouvert !

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Actes de conférences sur le sujet "Mission 3MI"

Grabarnik, Semen, Jean-Loup Bézy, Maurizio Betto, Graeme Mason, Ilias Manolis, Jérôme Caron, Hubert Barré et Roland Meynart. « The MetOp second generation 3MI mission ». Dans International Conference on Space Optics 2012, sous la direction de Errico Armandillo, Nikos Karafolas et Bruno Cugny. SPIE, 2017. http://dx.doi.org/10.1117/12.2309178.

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Clermont, Lionel, Céline Michel, Emmanuel Mazy, Yvan Stockman, Charlotte Pachot, Carmine Mastrandread et Niccolo Daddi. « Stray-light calibration and correction for the MetOp-SG 3MI mission ». Dans Observatory Operations : Strategies, Processes, and Systems VII, sous la direction de Alison B. Peck, Chris R. Benn et Robert L. Seaman. SPIE, 2018. http://dx.doi.org/10.1117/12.2314208.

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Fougnie, Bertrand, Thierry Marbach, Antoine Lacan, Peter Schlüssel, Ruediger Lang, Gabriele Poli et Rosemary Munro. « The 3MI mission on-board EPS-SG : a multi-spectral multi-polarization multi-directional imager for operational characterization of aerosol and cloud ». Dans Earth Observing Systems XXIII, sous la direction de James J. Butler, Xiaoxiong (Jack) Xiong et Xingfa Gu. SPIE, 2018. http://dx.doi.org/10.1117/12.2320254.

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Marbach, T., J. Riedi, A. Lacan et P. Schlüssel. « The 3MI mission : multi-viewing-channel-polarisation imager of the EUMETSAT polar system : second generation (EPS-SG) dedicated to aerosol and cloud monitoring ». Dans SPIE Optical Engineering + Applications, sous la direction de Joseph A. Shaw et Daniel A. LeMaster. SPIE, 2015. http://dx.doi.org/10.1117/12.2186978.

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Marbach, Thierry, Pepe Phillips et Peter Schlüssel. « 3MI : The Multi-Viewing Multi-Channel Multi-Polarization Imaging Mission of the EUMETSAT Polar System - Second Generation (EPS-SG) dedicated to aerosol characterization ». Dans RADIATION PROCESSES IN THE ATMOSPHERE AND OCEAN (IRS2012) : Proceedings of the International Radiation Symposium (IRC/IAMAS). AIP, 2013. http://dx.doi.org/10.1063/1.4804777.

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Vianello, Giacomo, R. J. Lauer, J. M. Burgess, H. Ayala, H. Fleischhack, P. Harding, M. Hui, S. Marinelli, Volodymyr Savchenko et H. Zhou. « The Multi-Mission Maximum Likelihood framework (3ML) ». Dans 7th International Fermi Symposium. Trieste, Italy : Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.312.0130.

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Cisewski, Michael S., Sudha M. Natarajan, Robert P. Borchardt, Jr., Sharon S. Graves et William P. Chu. « Meteor 3M/SAGE III mission operations ». Dans SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, sous la direction de Allen M. Larar. SPIE, 1999. http://dx.doi.org/10.1117/12.366369.

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Huang, Adam, et Eui-Hyeok Yang. « MEMS Thruster System for CubeSat Orbital Maneuver Applications ». Dans ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12675.

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This paper reviews the previously developed attitude control micro-thruster propulsion unit (The Aerospace Corporation) and a high pressure piezoelectric microvalve (Jet Propulsion Laboratory), and follows up with a conceptual development effort that is currently underway to optimize the benefits of merging these two technologies. The goal is to provide orbital maneuver capabilities for future Air Force and NASA nano/pico-satellite missions, such as inspector satellites for post launch diagnostics, sparse array antennas, field measurements of space weather events, and the calibration of atmospheric drag in the thermosphere. The piezoelectric microvalve developed is capable of low power (3mW), high speed (>1kHz), and high pressure (70 bar absolute). The target warm gas Newton level propulsion system dry mass is 200 grams and with a volume of <100 cm3 and the intended first mission is to provide CubeSats the ability to operate at orbits of choice rather than opportunity.

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Park, Hongwoo, Shahid Habib, F. G. Cunningham, Jay R. Herman, Pawan K. Bhartia, Rashid Salikhov et Albert Chernikov. « Joint Russian-USA Meteor-3M(2)/TOMS-5 mission ». Dans Remote Sensing, sous la direction de Hiroyuki Fujisada. SPIE, 1998. http://dx.doi.org/10.1117/12.333659.

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Thibault, J.-P., C. Corre, L. Demeure et S. Mer. « Thermodynamic Control Systems for Cryogenic Propellant Storage During Long Missions ». Dans ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/fedsm2014-22217.

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One of the key problems for space launcher, in the context of long duration missions using cryotechnic propulsion, is the pressure rise of the propellant tank due to residual thermal inputs (solar fluxes, mechanical connexions). In order to control self-pressurization and as an alternative to simple but propellant-consuming direct venting (DV) systems, a concept of thermodynamic venting systems (TVS) is considered. The main objective of the TVS concept is to control pressurization with a minimum penalty in mass and propellant losses. The present work combines 0-dimensional modelling and laboratory experiments to quantify the performance of the proposed control cycles. The TVS system relies on the following key ideas: some liquid propellant is removed from the tank, cooled down thanks to a pump and a heat exchanger and re-injected inside the tank as a spray in both vapour and liquid phases. This cold spray makes the vapour condense and homogenizes the liquid phase temperature by mixing. The real propellant (i.e. oxygen or hydrogen) is replaced in the experiment, close to room temperature and pressure, by a simulation fluid with a behaviour similar to that of real fluids in cryogenic conditions. This desirable feature is achieved in the experiments using a fluoroketone Novec by 3M. The geometry of the experiment is mostly a cylindrical tank containing the volatile fluid as a liquid and its vapour close to equilibrium. A regulated electrical heating simulates the thermal input. The tank wall temperature is carefully imposed by a constant temperature water loop such that the temperature control set point equals the inside fluid temperature. Consequently there is almost no heat exchange at the wall. Taking advantage of the easy-to-manage experimental conditions (compared to cryogenic ones), various operating conditions of the simulation tank can be imposed: constant volume, constant pressure, constant mass. The evolution of the control performance is analysed when changing control parameters such as: injection pressure and temperature, injection flow-rates. The 0-dimensional model can be applied with the same choice of parameters, which allows a detailed comparison between model predictions and measurements. A series of about 100 experiments on transient cooling and pressure control has been performed. The cross-comparison of 0-dimensional modelling simulations with measurements demonstrates the validity of the model but also evidences its limits.

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