Denna uppsats undersöker vilka stilistiska tekniker inomfilmklippning, filmdialog och filmfotografi som har använts och varför föratt framkalla känslan av stress i filmen Uncut Gems (2019). Uppsatsenförhåller sig till Karen Pearlmans och Walter Murchs filmklippningsteorierom rytm och tempo och David Bordwells kontinuitetsteori. Sarah Kozloffger fördjupning i dialogens betydelse. Edward Branigan och Blain Brownfördjupar teorier inom filmfotografi. Totalt analyseras sex stycken scenerfrån filmen som framkallar känslan av stress hos tittaren. Resultatet visarpå att när de stilistiska teknikerna ”intensifierad” kontinuitet, överlappandedialog och följande kamerarörelser samspelar skapas en situation somefterliknar en realistisk stress som tittaren känner sig närvarande i fysisktoch emotionellt.

This internship's objective is to implement modeling of uncut chip thicknesses and milling forces in 3-axis milling, and apply it to orbital drilling. The goal is to understand deeper the process, and develop a tool which permits to model a wide range of end-mill tool geometries, and most of 3-axis milling operations.In this report, the following axis will be developed: • The modeling of the complex tool geometry • The modeling of uncut chip thicknesses in slot milling, and for any 3-axis milling operation • The strategy which has been chosen to identify cutting forces coefficients, and their use. • The obtained results and prospects for development.

Advanced composites are extremely strong, rigid, and light, even when compared with advanced metals. Advanced composites are replacing high-tech metals as the material of choice for aerospace engineering. However, the processes used to manufacture advanced composites generally lose some of the properties of the materials by their process limitations. One process that keeps the theoretically awesome qualities of the composite materials in tact is filament winding. Filament wound parts are used as rocket shells, bicycle frame tubes, drive shafts, pressure vessels, etc. Filament winding is an automated process and makes reliable parts to close tolerances. If a straight tube were to be made by all the existing composites manufacturing processes, filament wound tubes would be significantly better than any other. However, filament winding is generally limited to making straight tubes. A new process based on filament winding is proposed; one that can wind complex shapes of the same high quality as conventional filament winding. This process has achieved this by winding continuous, uncut, and aligned fibers. This process is called Lotus Filament Winding.

In this work, measurements and simulations were used to investigate the effects of grinding wheel topography on the geometric aspects of the grinding process. Since existing methods for measuring the grinding wheels were either not accurate enough or could only measure a small portion of a grinding wheel, a novel grinding wheel measurement system was developed. This system consists of a white light chromatic sensor, a custom designed positioning system and software. The resulting wheel scanning system was capable of measuring an entire grinding wheel with micron level accuracy. The system was used to investigate the effects of fine, medium and course dressing on grinding wheel surface topology and the resulting workpiece surface. New techniques were also developed to simulate metal removal in grinding. The simulation software consisted of a stochastic wheel model, dressing model and metal removal model. The resulting software could determine the uncut chip thickness, contact length for every cutting edge on a grinding wheel as well as the resulting surface roughness of the grinding wheel. The simulation was validated by comparing the wheel model used in the simulation to grinding wheel measurements and by comparing the simulated surface finish to the measured surface finish. There was excellent agreement between the predicted and experimentally measured surface topology of the workpiece. The results suggested that only 22 to 30% of the cutting edges exposed on the grinding wheel are active and that the average grinding chip is as much as 10 times thicker and 5 times shorter than would be produced by a grinding wheel with a regular arrangement of cutting edges as assumed by existing analytical approaches.

Tirtas labiausiai paplitusių Lietuvoje medžių rūšių (P, E, Ą, U, B, D, J, Bt) grynų medynų auginimo derlingose augavietėse (c, d, f dirvožemio derlingumo ir N, L dirvožemio drėgnumo indeksai) ekonominis efektyvumas. Darbo objektas –ūkinių miškų labiausiai paplitusių medžių rūšių grynų medynų (P išskyrus d, f derlingumus, E, Ą, U, B, J, D, Bt) derlingose augavietėse (c, d, f dirvožemio derlingumo ir N, L dirvožemio drėgnumo indeksai) auginimo ekonominis efektyvumas, išreikštas grynosios dabartinės vertės rodikliais. Šios derlingos augavietės sudaro 44,1 proc. visų Lietuvos miškų. Tyrimų tikslas – palyginti dirbtinai atkuriamų ąžuolynų, uosynų, eglynų bei pušynų ir savaime atželiančių beržynų, juodalksnynų, drebulynų ir baltalksnynų auginimo ekonominį efektyvumą. Darbo metodai - taikytas variantų skaičiavimo metodas. Darbo rezultatai. Taikant įvairius nenukirsto miško kainų variantus ir 3 proc. diskonto normą, nustatyta, kad derlingose augavietėse savaiminis miško atžėlimas minkštųjų lapuočių medžių rūšimis (B, J, D, Bt) yra ekonomiškai efektyvesnis nei ąžuolynų, uosynų, eglynų ar pušynų dirbtinis įveisimas. Nustatyta, kad nenukirsto miško kainos padidėjimas, tiesiogiai veikia medynų auginimo ekonominio vertinimo rodiklius, šiuo atveju GDV. Raktažodžiai: medynų auginimas, technologinė savikaina, ekonominis efektyvumas, grynoji dabartinė vertė, diskonto norma, vidutinė metinė grynoji dabartinė vertė, nenukirsto miško kaina. / The economic efficiency of growing the pure stand of the most common tree species ( pine, spruce, oak, ash tree, birch, aspen, black an dgrey alder) inLithuania‘s fertile site type habitats ( c,d,f – soil fertility and N,L indice of soil moisture) has been studied. Research object: Economic efficiency of growing pure stand of the most common tree species in fertile habitats, expressed by the net present value of the indicators ( soil fertility, soil moisture indice). The fertile sites constitute 44,1 percent of all the forests in Lithuania. Researchaim: To compare the economic efficiency of artificially reforested oak, ash, spruce and pine stands with natural regeneration of birches, black alders, grey alders and aspens. Research methods: Variant calculation method was applied. Research outcomes: By applying diverse price options for uncut forest and 3percent discount rate, it was estimated that self – regeneration of soft deciduous tree species in fertile habitats is more cost effective than artificial afforestation with oaks, ash trees, spruces and pines. The price increase was found to have a direct effect on the economic indicators of forest growing. Keywords: forest growing, technological cost, economic efficiency, net present value, discount rate, the average annual net present value, the price of uncut forest.

La qualité des surfaces des veines fluides fermées des pièces tournantes de turbomachine participe au rendement de la turbomachine. Il est donc essentiel de maîtriser la finition des veines en usinage 5 axes avec une fraise boule. L'alliage de titane Ti6Al4V est l'un des matériaux utilisés et souffre d'une faible usinabilité. Le choix des paramètres de coupe conditionne la qualité de surface et la durée de vie de la fraise. Pour maîtriser le fraisage 5 axes, des méthodes de caractérisation de la coupe sont développées pour des trajectoires linéaire et circulaire. Les diamètres effectifs et l'épaisseur coupée sont à l'origine de plusieurs phénomènes associés à la coupe tels que la vitesse de coupe, la vitesse d'évolution de l'usure d'outil, des modes d'usinage et des efforts de coupe. Des essais font le lien entre les mesures d'efforts de coupe et d'état de surface avec les méthodes de caractérisation de la coupe. Une fois l'usinage 5 axes en fraise boule caractérisé, deux stratégies de finition multiaxes de veines fermées sont développées en gardant constantes la vitesse d'avance du point générateur et l'orientation relative de l'axe de l'outil avec la normale de la surface locale. La stratégie de tréflage se caractérise par une trajectoire continue en courbure. La stratégie de contournage hélicoïdal met en évidence des discontinuités en tangence de la trajectoire. Une méthode de lissage local de trajectoire est alors développée pour assurer un comportement cinématique et dynamique raisonnable de la machine. / The surface quality of closed fluid veins rotating parts of turbo machines participates in the machine output. It is therefore essential to control the finishing of veins in 5-axis machining with a ball end mill. The titanium alloy Ti6Al4V is one of the materials used and suffers from a poor machinability. The choice of cutting parameters affects the surface quality and the life of the cutter. In order to control the 5-axis milling, characterization methods of cutting are developed for linear and circular paths. Effective diameters and the uncut chip thickness is responsible for several phenomena associated with the cut such as the cutting speed, the speed of evolution of the tool wear, the milling modes and cutting forces. Tests are the link between measures of cutting forces and surface quality and characterization methods of cutting. Once the 5-axis machining with ball end mill characterized, two strategies of finishing closed veins in multiaxis are developed keeping constant the feed speed of the contact and the relative orientation of the tool axis with the normal the local surface. The plunge milling strategy is characterized by a curvature continuous trajectory. The helical milling strategy reveals tangent discontinuities of the trajectory. A method of local smoothing trajectory is then developed to provide a reasonable kinematics and dynamics behavior of machine.