En 1954, l’Arme Blindée et Cavalerie (ABC) est une arme qui monte en puissance pour faire face à la menace soviétique en Europe. Le général inspecteur de cette arme voit s’achever la guerre d’Indochine avec un soulagement car il pense pouvoir se consacrer pleinement à cette tâche. Aussi, est-ce avec une certaine réticence, qu’à partir de 1955, il fournit à la Xe région militaire (Algérie) les renforts qu’elle réclame. L’organisation opérationnelle des corps, l’instruction du personnel et le programme d’équipement s’en trouvent très perturbés. Voulant à la fois maintenir sa capacité opérationnelle en Europe et faire face aux besoins de l’Algérie, le commandement désorganise l’ABC. Les unités blindées ne sont adaptées ni à un conflit de type insurrectionnel, ni au terrain particulier de l’Algérie. Pourtant, à partir de 1958, elles donnent satisfaction. Leur composante portée s’est développée, leur puissance de feu et leur mobilité sont mises pleinement à profit sur les barrages, et les unités à cheval, qui ont refait leur apparition, sont employées plus judicieusement sur des terrains favorables. Mais cette adaptation s’est faite au prix de grands sacrifices. Le vieux matériel américain n’est remplacé que très progressivement soit par des engins français modernes (EBR ou AMX 13), que le commandement a le sentiment de gaspiller, soit par des nouveaux matériels (Ferret, AML 60, ou AMX 13 à tourelle de M24) qui ne peuvent être employés qu’en Algérie et dont l’acquisition se fait au détriment du char de 25 t dont doit pourtant être équipée l’ABC d’urgence. En somme, l’ABC aurait rencontré les pires difficultés si le conflit avait dû se prolonger au-delà de 1962. / In 1954, the French Armored Cavalry was a corps that was aiming to get stronger to face the Soviet threat in Europe. The Inspector General of this corps was relieved when the war in Indochina ended because he thought he could rededicate himself to this task. So it was with some reluctance, that from 1955 on wards, he provided the tenth military region (Algeria) with the reinforcements it required. The operational organization of the units, personnel training and equipment program found it very disturbing. Seeking both to maintain its operational capacity in Europe and meet the needs of Algeria, the command reorganized the Armored Cavalry. Armored units were not adapted neither to counter-insurgency, neither to the particular terrain in Algeria. Yet in 1958, they gave satisfying result. The vehicle-mounted infantry had been expanded, their firepower and mobility were expertly used over fences; and horseback units were re-created and deployed more wisely on a favorable terrain. But this re-organization cost very much. The old American equipment was only gradually replaced by French modern equipment (EBR or AMX 13), the command considering this equipment was being wasted. The new materials (Ferret, AML 60, or AMX 13 with M24 turret) could only in Algeria and their acquisition was at the expense the 25 ton tank. However, the French Armored Corps urgently needed this battle tank. To sum up, the Armored Cavalry would have encountered severe difficulties if the conflict had been extended beyond 1962.

No description available.

Approved for public release, distribution is unlimited / The Marine Corps is fielding the MTVR Truck as a replacement for its aging fleet of five-ton cargo trucks. The MTVR is an Acquisition Category II program that was a multi-service Army-Marine Corps program. The purpose of this thesis is to examine the effectiveness of having an Army Product Office execute a Marine Corps Program. The study analyzes the effectiveness of the timing of the program's transition from the Army to the Marine Corps. A detailed literature search, as well as information gathered from attending various IPRs and conducting interviews with program officials and contractors, provided the basis for the in-depth background study presented. Analysis of the data gathered led to a justification for multi-service managed programs, as well as to recommendations on the timing of the MTVR program transition. / Civilian, United States Army

<p>Den mekaniserade bataljonens främsta sensor att samla in underlag till underrättelsesektionen är spaningsplutonen. Spaningsplutonen på mekbataljon har bytt organisation över åren och gått från att vara ett terrängbils eller bandvagnsburet förband till sin nuvarande form med stridsfordon 90. Men har förbandet använts på rätt sätt sedan det tillfördes stridsfordon? Hur bör framtidens chefer nyttja plutonen för att maximera effekten?</p><p>Arbetet baseras på de reglementen som finns idag samt intervjuer med personal tillhörande spaningsplutonerna och bataljonsstaber. Utöver det kommer en jämförelse med US Army Armored Cavalry göras.</p> / <p>The mechanized battalion foremost instrument of gathering information to its intellegence cell is the reconnaissance platoon. The reconnaissance platoon on the mechanized battalion has evolved over the years from being a unit using crosscountry vehicles to its modern shape with Combat vehicle 90. But have the unit been used the right way since then? And how should tomorrows commanders use the recon platoon for maximum output?</p><p>This work will be based on the manuals that are valid today and interviews with staff officers and officers that belong to the recon platoons. The results will be compared with US Army Armored Cavalry.</p>

Den mekaniserade bataljonens främsta sensor att samla in underlag till underrättelsesektionen är spaningsplutonen. Spaningsplutonen på mekbataljon har bytt organisation över åren och gått från att vara ett terrängbils eller bandvagnsburet förband till sin nuvarande form med stridsfordon 90. Men har förbandet använts på rätt sätt sedan det tillfördes stridsfordon? Hur bör framtidens chefer nyttja plutonen för att maximera effekten? Arbetet baseras på de reglementen som finns idag samt intervjuer med personal tillhörande spaningsplutonerna och bataljonsstaber. Utöver det kommer en jämförelse med US Army Armored Cavalry göras. / The mechanized battalion foremost instrument of gathering information to its intellegence cell is the reconnaissance platoon. The reconnaissance platoon on the mechanized battalion has evolved over the years from being a unit using crosscountry vehicles to its modern shape with Combat vehicle 90. But have the unit been used the right way since then? And how should tomorrows commanders use the recon platoon for maximum output? This work will be based on the manuals that are valid today and interviews with staff officers and officers that belong to the recon platoons. The results will be compared with US Army Armored Cavalry.

Upon consultation with NPS faculty, the School has determined that this thesis may be released to the public, its distribution is unlimited effective August 25, 2011. / One result of the break-up of the Soviet Union is that the DOD has been forced to reevaluate the roles of each of the Armed Services based on the declining resource pool. From the Marine Corps' evaluation of itself came the Combined Arms Regiment (CAR) concept. The objective of this study was to develop an estimate of the Life Cycle Cost (LCC) of the two possible vehicles used with the CAR and the CAR's components. Standard cost factors are used to cost out the various organizations involved. Two supporting analyses done in this study are: an evaluation of the Marine Corps' role in national security and how the CAR could be used to support that security role, and a comparison of the vehicle option operating characteristics which was done to enrich the dimensions under which the CAR could be evaluated. The results of the study are a tool which can help Marine Corps planners make more informed decisions in regards to the CAR concept. The final conclusion, based on the assumption that any CAR would act as a follow-on element of the MAGTF, was that although the CAR(LAV) was a workable option, the CAR using upgraded AAVs was the better, more cost effective option.

Ces travaux portent sur l'étude expérimentale et numérique de la rupture de structures soudées soumises à des sollicitations pyrotechniques telles que celles subies par les véhicules militaires sur le champ de bataille. Ce travail de thèse présente le développement de modèles éléments finis détaillés (à l’échelle mésoscopique) permettant de reproduire le comportement de ces assemblages lorsqu’ils sont sollicités par ces sollicitations dynamiques. Ils prennent en compte la géométrie locale des cordons de soudure et les différents matériaux. Pour paramétrer ces modèles, il est nécessaire de caractériser la soudure à l’échelle des matériaux constitutifs de l’assemblage. Ainsi des essais de caractérisation de leur comportement mécanique sont menés en se basant sur les vitesses de déformation relevées sur des modèles éléments finis de véhicule : quasi-statique jusqu’à 1000s-1. Pour l’analyse de la rupture, une large plage de triaxialité des contraintes est couverte au travers d’essais dédiés. Pour chaque matériau, une loi de comportement et un critère de rupture ont été déterminés par analyse inverse et validés sur des grandeurs globales et locales. Afin d’étudier la pertinence des modèles mésoscopiques, des essais au canon à gaz sont réalisés sur des assemblages soudés élémentaires en L et en T. Ils permettent de reproduire les principaux modes de rupture observés sur les pièces réelles. In fine, les simulations corrèlent les essais en termes de mode et de seuil d’apparition de la rupture. Ceci valide les lois de comportement identifiées et la modélisation mésoscopique proposée. / Finite element modeling is commonly used to design armored vehicles and to evaluate the strength of the structure against mine explosion. This study investigates experimental and numerical failure of welded structures submitted to such dynamic loadings. The goal is to develop detailed finite element models at meso-scale that allow to predict the behavior and failure of welded joints at intermediate strain rates. These models must take into account the local properties of the welded joint as the geometries as the mechanical behavior of the constitutive materials. Experimental characterizations of the material behavior are led on tensile specimens from quasi-static loading up to 1000s-1. This strain rates range results from analysis on vehicle finite element models. Dedicated tests are also conducted to study the material failure on a large range of stress triaxiality values. For each constitutive material, the hardening and failure parameters are identified through a reverse engineering approach. To validate the meso-scale models, gas gun tests are led on basic L and T welded assemblies. Modes and thresholds of failure are correctly replicated thanks to these finite element models. This validates the identified material behavior laws and the proposed meso-scale modeling.

Šiame baigiamajame darbe buvo nagrinėjami aukšto pravažumo (4x4) šarvuoti taktiniai automobiliai ir jų specifika. Apžvelgti, apskaičiuoti ir palyginti automobilių rodikliai. Nagrinėjamas G. Bekker metodas automobilių mobilumui nustatyti. Naudojantis BDTM metodika apskaičiuojami automobilių mobilumo parametrai. Nagrinėjamas prioritetų skirstymo ir parinkimo (MPSP) metodas. Šio metodo pagrindu sudaroma metodika, su kuria galima palyginti su kitais ir išrinkti optimalų automobilį, atsižvelgiant į prioritetines automobilio charakteristikas, bei ekspertų vertinimus. / In this final thesis gives an overview of the high utility (4x4) armored tactical vehicles and their specifications. Reviewed, calculated and compared the vehicles parameters. Was examined G. Bekker equations and method of determination vehicles mobility. Calculated vehicle mobility parameters using the BDTM methodology. Examined the modificated allocation of priorities and selection (MPSP) method. Developed high-utility (4x4) tactical vehicle selection method that allows you to compare with others and choose the optimum car, depending on the vehicle's performance, and expert assessment. This method is based on the method of MPSP and gives an opportunity to evaluate the high utility (4x4) tactical vehicle to different partial criteria and their meaning of importance.

Résumé confidentiel / Résumé confidentiel

En muchas áreas citrícolas del mundo el piojo rojo de California (PRC), Aonidiella aurantii (Hemiptera: Diaspididae), está considerado una plaga clave. En el Este de España se ha extendido durante las últimas décadas hasta cubrir una amplia extensión de cítricos. El control químico es difícil y frecuentemente es seguido de infestaciones recurrentes en poco tiempo, de la aparición de resistencias a diferentes productos usados para su control y de la eliminación de enemigos naturales en el campo. La mejora del manejo integrado y las técnicas de control biológico del PRC requieren conocer la composición de los enemigos naturales en cada zona climática, la fluctuación en su abundancia estacional, los niveles de parasitismo y depredación, como se distribuyen en la planta y como son afectados por el clima y el cambio climático. Aunque mucho se ha estudiado en laboratorio sobre los parasitoides Aphytis (Hymenoptera: Aphelinidae), los principales agentes de control del PRC, todavía no se conoce qué combinación de enemigos naturales consigue el mejor nivel de control en el campo, cómo varían los niveles de parasitismo a lo largo del año o cómo los parasitoides se distribuyen y compiten en el campo en relación con el clima. La acción de los Aphytis, ectoparasitoides, es complementada en muchas zonas citrícolas por los endoparasitoides Comperiella bifasciata y Encarsia perniciosi (Hymenoptera: Aphelinidae), los cuales pueden parasitar estadíos diferentes a Aphytis. Muy poco se sabe sobre el comportamiento y las respuestas biológicas bajo diferentes condiciones climáticas de estos endoparasitoides. Del mismo modo, el efecto de los depredadores sobre la población del piojo ha sido raramente estudiado. Actualmente, A. melinus, una especie introducida en el Este de España y el competidor superior, ha desplazado al parasitoide nativo A. chrysomphali de las zonas cálidas y secas ya que puede tolerar mejor las temperaturas cálidas del verano. / Sorribas Mellado, JJ. (2011). Biological control of California red scale, Aonidiella aurantii (Hemiptera: Diaspididae): spatial and temporal distribution of natural enemies, parasitism levels and climate effects [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/14794