EXPERIMENTO DE THOMSON RAYOS CATODICOS PDF

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Status of computational and experimental correlations for Los Alamos fast-neutron critical assemblies; Correlation entre les calculs et les experiences sur les ensembles critiques a neutrons rapides de Los Alamos; Sostoyanie vychislitel'nykh i ehksperimental'nykh korrelyatsij dlya Los-Alamosskoj kriticheskoj sistemy na bystrykh nejtronakh; Conjuntos criticos de neutrones rapidos de Los Alamos; correlacion entre resultados calculados y experimentales. El autor expondra correlaciones directas entre los datos experimentales, para indicar que existe a priori la posibilidad de alcanzar correlaciones satisfactorias con los datos calculados.

Tambien presentara, para diversos conjuntos tipicos y a fin de establecer los detalles de calculo necesarios la sensitividad de los espestros calculados y de los tamanos criticos a los modelos de transporte nsutronico aproximaciones de transporte e hipotesis de proporcionalidad y a las aproximacione s aritmeticas hipotesis de la segmentacion angular finita y representacione s de grupos multiples.

Las comparaciones entre los resultados experimentales y las evaluasiones se refieren a los indices espectrales y a los tamanos criticos, asi como a los periodos de semidesintegracion y a las razones correspondientes a los neutrones retardados.

Sleduet podcherknut' vazhnost' nejtronno-spektral'nykh kharakteristik iz-za osobenno trudnorazreshimykh problem, svyazannykhs absolyutnym izmereniem spektral'nykh indeksov i neobkhodimost'yu proverok vychislenij sverkh prostogo kriticheskogo razmera.

Postoyannoe uluchshenie izmereniya spektral'nykh indeksov vmeste s uvelicheniem tochnosti kak mikroskopicheskikh dannykh dlya detektora i materialov sborok, tak i vychislitel'noj tekhniki, privodit k postepennomu proyasneniyu kharakteristik gruppy kriticheskikh sistem na bystrykh nejtronakh. Pryamaya korrelyatsiya sredi ehksperimental'ny kh dannykh budet predstavlena s tsel'yu ukazat' predshestvuyushchi e vozmozhnosti dlya uspeshnykh korrelyatsij s vychisleniem. Budet predstavlena chuvstvitel.

Dinamica classica dei sistemi fisici. Sistemi termodinamici complessi. Giles, Jr. Por toma de muestras de tierra y recuento de zonas delimitadas se estudio la distribucion bajo la superficie del suelo. Las muestras de agua tomadas en arroyos intermitentes y los ensayos realizados con insectos, mamiferos, reptiles y aves indicaron la distribucion inicial y subsiguiente del insecticida y sus metabolitos en el sistema ecologico.

Los estudios de la poblacion animal siguieron durante los veranos de y ; en el verano de se reuniran todavia algunos datos. Los resultados preliminares indican que la poblacion de insectos vuelve a la normalidad unas tres semanas despues del tratamiento; no se observo efecto alguno en los animales vertebrados de la zona tratada.

Ehtot insektitsid shirokogo dejstviya byl vybran dlya izucheniya v svyazi s ego vozrastayushchej rol'yu v bor'be s mnogimi vazhnymi nasekokymi-vreditelyami listvennykh i khvojnykh lesov Soedinennykh Shtatov. Dlya rasshireniya znanij po ehkologii lesnykh massivov, a takzhe bolee polnogo ponimaniya vliyaniya insektitsidov na faunu byla ispol'zovana svoeobraznaya vozmozhnost' izucheniya ehtikh problem odnovremenno posredstvom primeneniya mechennykh izotopami insektitsidov.

Predvaritel'noe issledovanie uchastka zemli 0,1 akra letom goda pokazalo stepen' vozmozhnogo' primeneniya v usloviyakh obshchej radiatsii, a takzhe vozmozhnost' razrabotat' podgotovitel'nye metody dlya vzyatiya prob. Letom goda byl proveden obzor fauny dvukh bassejnov reki ploshchad'yu v 20 akrov kazhdyj.

V mae goda odin iz nikh byl obrabotan tekhnicheski-chistym malationom v kolichestve 2 funtov na 1 akr v smesi s ksilolom, tritonom X ehmul'gator i vodoj. Design and Experimental Evaluation of an Electromagnetic Acceleration System for Fast Safety Rods; Etude Theorique et Experimentale d'un Mecanisme Electromagnetique d'acceleration pour des Barres de Securite; Proektirovanie i ehksperimental'naya otsenka ehlektromagnitnoj sistemy uskoreniya dlya avarijnykh sterzhnej bystrogo dejstviya; Proyecto y Estudio Experimental de un Sistema Electromagnetico de Aceleracion para Barras Rapidas de Seguridad.

Dosch, P. Se esta ensayando un prototipo de dicha barra. Los resultados obtenidos hasta ahora han sido muy satisfactorios. V jelektronnyh chastjah sistemy avarijnoj zashhity mozhno ochen' legko dobit'sja bystrogo srabatyvanija, t o gd a kak sokrashhenie vremeni m ehanicheskogo vysvobozhdenija avarijnogo sterzhnja javljaetsja trudnoj za d a ch ej.

Bole etshhatel'nye issledovanija pokazyvajut, chto pomimo nebol'shogo vremeni vysvobozhdenija, preimushhestvo daet vysokaja pervonachal'naja skorost' sterzhnja.

Pri odinakovom kolichestve vremeni, zatrach i v a emom na v v edenie st erzh n ja , sterzhni s ravnomernoj skorost'ju n emn ogo p revoshodjat sterzhni s ravnomernym u skoreiem. Ustanovleno, chto v avarijnyh sterzhnjah mozhno primenit' jelektromagnitnyj impul'snyj g en er ator. On imeet sledujushhie preimushhestva: a nebol'shoe kolichestvo komponentov prostoj i prochnoj konstrukcii, kotorye mogut byt' legko vkljucheny v avarijnyj sterzhen', a takzhe mogut byt' skonstruirovany dlja u slovij, sushhestvujushhih okolo aktivnoj zony vysokie urovni temperatury i izluchenija ; b jen ergi ja , privodjashhaja v dvizhenie sterzhni, akkumuliruetsja v jelek trok on den satore i p o jet om u takzhe mozhet byt' ispol'zovana v sluchae prekrashhenija jenergopitanija; v konstrukciju legko mozhno prisposobit' k tomu, chtoby ona mogla svobodno i be sp r e pjatstvenno padat' v sluchae prekrashhenija impul'sov.

V doklade opisyvajutsja rezul. In this work we have developed a restructuring software tool RT- CUDA following the proposed optimization specifications to bridge the gap between high-level languages and the machine dependent CUDA environment. Simple sorting algorithm test based on CUDA.

With the development of computing technology, CUDA has become a very important tool. In computer programming, sorting algorithm is widely used. There are many simple sorting algorithms such as enumeration sort, bubble sort and merge sort. In this paper, we test some simple sorting algorithm based on CUDA and draw some useful conclusions. La procedura di 'Censimento' si propone di raccogliere informazioni relative a tutte le 'macchine' o ' sistemi ' Personal Computer, Workstation e Server disponibili in Istituto per una migliore ed efficace utilizzazione delle risorse ai fini della sicurezza informatica.

La procedura prevede la compilazione guidata via browse di due moduli: il primo modulo riguarda essenzialmen CUDA -based real time surgery simulation. We report implementation of both collision detection and consequent deformation computation algorithms. Our test results indicate that the CUDA enables a twenty times speedup for collision detection and about fifteen times speedup for deformation computation on an Intel Core 2 Quad 2. Directory of Open Access Journals Sweden.

Full Text Available This paper presents a novel method for parallelizing the seeded region growing SRG algorithm using Compute Unified Device Architecture CUDA technology, with intention to overcome the theoretical weakness of SRG algorithm of its computation time being directly proportional to the size of a segmented region. Based on the experimental results, the CUDA -based SRG outperforms the other three implementations, advocating that it can substantially assist the segmentation during massive CT screening tests.

Cuda Library for T2ournamint. In contrast to signal and image filtering in spatial domain which uses convolution operations and hence is more compute-intensive for filters having larger spatial extent, the frequency domain filtering uses FFT Fast Fourier Transform which is much faster and significantly reduces the computational complexity of the filtering. In order to demonstrate the efficiency of frequency domain filtering on CUDA , we implement three frequency domain filters, i. CPU benchmarks.

The results presented in this paper show that the frequency domain filtering with CUDA achieves significant speed-up over the CPU processing in frequency domain with the same level of output image quality on both the processing architectures. Since the motivation behind CUDArray is to facil Since the motivation behind CUDArray Exploration of automatic optimisation for CUDA programming.

We present a design methodology for a restructuring tool that converts C-loops into optimised CUDA kernels based on a three-step algorithm which are loop tiling, coalesced memory access and resource optimisation. A method for finding possible loop tiling solutions with coalesced memory access is developed and a simplified algorithm for restructuring C-loops into an efficient CUDA kernel is presented.

In the evaluation, we implement matrix multiply MM , matrix transpose M-transpose , matrix scaling M-scaling and matrix vector multiply MV using the proposed algorithm. We present the analysis of the execution time and GPU throughput for the above applications, which favourably compare to other proposals. Evaluation is carried out while scaling the problem size and running under a variety of kernel configurations.

Exploration of automatic optimization for CUDA programming. Graphic processing Units GPUs are gaining ground in high-performance computing. However, the task of writing optimized CUDA program is complex even for experts.

We present a method for restructuring loops into an optimized CUDA kernels based on a 3-step algorithm which are loop tiling, coalesced memory access, and resource optimization. We also establish the relationships between the influencing parameters and propose a method for finding possible tiling solutions with coalesced memory access that best meets the identified constraints.

We also present a simplified algorithm for restructuring loops and rewrite them as an efficient CUDA Kernel. The execution model of synthesized kernel consists of uniformly distributing the kernel threads to keep all cores busy while transferring a tailored data locality which is accessed using coalesced pattern to amortize the long latency of the secondary memory. In the evaluation, we implement some simple applications using the proposed restructuring strategy and evaluate the performance in terms of execution time and GPU throughput.

Frequency domain image filtering using cuda. Graphic filter library implemented in CUDA language. This thesis deals with the problem of reducing computation time of raster image processing by parallel computing on graphics processing unit. Raster image processing thereby refers to the application of graphic filters, which can be applied in sequence with different settings.

This thesis evaluates the suitability of using parallelization on graphic card for raster image adjustments based on multicriterial choice. Filters are implemented for graphics processing unit in CUDA language. Idraulica dei sistemi fognari dalla teoria alla pratica. Stochastic first passage time accelerated with CUDA. The numerical integration of stochastic trajectories to estimate the time to pass a threshold is an interesting physical quantity, for instance in Josephson junctions and atomic force microscopy, where the full trajectory is not accessible.

We propose an algorithm suitable for efficient implementation on graphical processing unit in CUDA environment. This method allows with off the shell GPU to challenge problems that are otherwise prohibitive, as thermal activation in slowly tilted potentials.

In particular, we demonstrate that it is possible to simulate the switching currents distributions of Josephson junctions in the timescale of actual experiments. Full Text Available Image processing, computer vision or other complicated opticalinformation processing algorithms require large resources.

It isoften desired to execute algorithms in real time. It is hard tofulfill such requirements with single CPU processor. Additional libraries as OpenCV 2. The algorithm uses a main image and a template.

An influenceof these factors was tested. According to the informationobtained from the research GPU computing using the hardwarementioned earlier is till 24 times faster when it is processing abig amount of information. Thechoice of the template size makes influence on calculating withCPU.

Difference in the computing time between the GPUs canbe explained by the number of cores which they have. The accuracy and adherence to reality achieved by the physics-based cell evolution of MAGFLOW comes at the cost of significant computational times for long-running simulations. A number of optimization strategies that have been used to achieve optimal performance on a graphic processing units GPU are also discussed. The actual benefits of running on the GPU rather than the central processing unit depends on the extent and duration of the simulated event; for large, long-running simulations, the GPU can be totimes faster, while for short-lived eruptions with a small extents the speed improvements obtained are to times.

Full Text Available Decision tree is one of the famous classification methods in data mining. Many researches have been proposed, which were focusing on improving the performance of decision tree. However, those algorithms are developed and run on traditional distributed systems. Obviously the latency could not be improved while processing huge data generated by ubiquitous sensing node in the era without new technology help.

Full Text Available Parallel computing can offer an enormous advantage regarding the performance for very large applications in almost any field: scientific computing, computer vision, databases, data mining, and economics. A great number of applications were ported to CUDA programming model and they obtain speedups of orders of magnitude comparing to optimized CPU implementations.

In this paper we present an implementation of a library for solving linear systems using the CCUDA framework. We present the results of performance tests and show that using GPU one can obtain speedups of about of approximately 80 times comparing with a CPU implementation. I sistemi locali del credito in regioni a diverso stadio di sviluppo. Il lavoro si inserisce nella problematica dell'articolazione territoriale del sistema finanziario italiano, prendendo in esame i problemi di integrazione dei sistemi locali del credito operanti in regioni decentrate e diversamente sviluppate.

LA REVOLUCION INTERRUMPIDA ADOLFO GILLY PDF

Modelos atómicos: Aciertos y errores.

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