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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Dynamic Characterization of the Rectangular Piston Seal in a Disc-Caliper Braking System Using Analytical and Experimental Methods

Liette, Jared V. 08 September 2011 (has links)
No description available.
12

Vliv kompenzačního cvičení na míru protrakce ramenních kloubů u sportovních lezců / Impact of compensation exercises on forward shoulder posture in sport climbers

Chládková, Karolína January 2017 (has links)
Title Impact of compensation exercises on forward shoulder posture in sport climbers Aims The aim is to decide whether in climbers regulary performing compensation excercises occurs lower rate of forward shoulder posture than in non-excercising climbers. Methods The diploma thesis is a pilot study of quantitative nature with participation of 48 probands. The probands were sports climbers, men and women aged 18-35 with no shoulder pain or disorder. The minimal requiered climbing level was determined to VII UIAA. The data were gained by caliper measure of two anatomical points; cranial part of sternum and anterior part of acromion, both in natural posture and upright posture. All measurements were one-off with the aim to gather the data that were consequently processed and statistically analyzed. Results The results confirmed that compensation exercises have impact on forward shoulder posture. The results did not confirm the same values of protraction on both shoulders. Key words forward shoulder posture, exercise, sports climbers, caliper, physiotherapy, shoulder
13

Noggrannhet och precision vid beståndsuppskattning av mobilapplikationen KATAM / Accuracy and precision in stand measurements of the mobile application KATAM

Andersson, Erik January 2019 (has links)
Syftet med arbetet var att utvärdera mobilapplikationen KATAM avseende noggrannhet, tidsåtgång, precision och praktisk användning i jämförelse med volymuppskattning med dataklave och skördarrapport. Resultatet vid diameterjämförelsen visar på snarlika uppskattningar från KATAM respektive dataklaven. KATAM hade högre medelgrundyta, 7 % och grövre medeldiameter, 3,7 %, i jämförelse med dataklaven. KATAM hade även överskattningar av medelstammen volym i jämförelse med skördarrapporten och dataklaven, från 2,5 % till 17,6 % beroende på vilket urval av provytor och vilken programversion av KATAM som användes. Underlaget från volymuppskattningar var litet och hade felkällor vilket gjorde resultaten från mätningarna osäkra. Trots att studien visade på en överskattning av diametern talar den inbördes precisionen för att KATAM skulle kunna bli ett alternativ till Dataklaven vid uppskattning av medeldiametern. / The purpose of this essay was to evaluate the mobile application KATAM of accuracy, time, precision and practical use in comparison to volume estimation with data Digital Caliper and harvester report. The result of the diameter comparison showed similar estimates from KATAM and the Digital Caliper respectively. KATAM had a higher mean basel area, 7% and coarser mean diameter, 3.7%, compared to the Digital Caliper. KATAM also had overestimations in volume as compared to the harvesting report and the Digital Caliper concerning the mean stem, from 2.5% to 17.6%, depending on which sample areas were included and which version of KATAM was used. However, the basis of volume estimates was small and had error sources, which made the results of the measurements uncertain. Although the study shows an overestimation of the diameter, the mutual precision indicates that KATAM could be an alternative to the Digital Caliper when estimating the mean diameter.
14

Zjištění výskytu obezity a nadváhy u dětí na 2. stupni základních škol v Pacově pomocí kaliperace / Determining the prevalence of obesity and overweight among children in the second primary school in Pacov using caliperacion

MARŠÍK, Michal January 2015 (has links)
This thesis deals with the issue of overweight and obesity among children of 2nd elementary schools in Pacov. The author initially focused on findings regarding overweight, obesity and possibilities for prevention. Eventually deals with eating disorders and healthy lifestyle. The aim of the research was to determine the incidence of overweight and obesity in children at primary schools in Pacov. To obtain data applies skinfold calliper technique, skinfold measures, as well as body height and weight (for BMI). Data processed in tables and graphs. Only one pupil (of 112) was demonstrated by the percentage of fat obesity, overweight at 25 pupils (22,3 %).
15

Porovnání procenta tělesného tuku u studentů učitelství prvního stupně ZŠ s šetřením z roku 2005 pomocí kaliperace / Comparison body fat at student's elementary school teaching with survey from the 2005 year by the help of calliperation

HALASOVÁ, Barbora January 2012 (has links)
This thesis is concerned with identifying the percentage of body fat students University of South Bohemia, the field of teaching for the first grade school and then comparing the results with 2005. The research took place in the months from May to October the 2011th. In this period was measured a total of 114 probands, of whom 106 women and 8 men. Measurement of body fat went through anthropometric methods, specifically the methodology used by Pařízková. Skinfold were measured using the brand Somet caliper with an accuracy of 0,2 mm. The resulting values are recorded in tables and graphs. The results show that compared with 2005, there was an increase in percent body fat in a group of men and women.
16

O saber a ser ensinado sobre medição de comprimentos com o uso do paquímetro em um curso profissionalizante

SERPA, Almir de Lima 09 March 2016 (has links)
Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2017-05-02T14:06:25Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Serpa EDUMATEC CD (1).pdf: 1958141 bytes, checksum: c34df3e6d1df28315e381a223647d7fe (MD5) / Made available in DSpace on 2017-05-02T14:06:26Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Serpa EDUMATEC CD (1).pdf: 1958141 bytes, checksum: c34df3e6d1df28315e381a223647d7fe (MD5) Previous issue date: 2016-03-09 / O objetivo desta dissertação foi investigar o ensino da medição de comprimentos para estudantes da disciplina Metrologia em um curso profissionalizante do Programa Nacional de Ensino Tecnológico – PRONATEC, sob responsabilidade do Ministério da Educação – MEC (BRASIL, 2011). Tais alunos estão, simultaneamente, matriculados em uma escola pública do ensino médio regular da Região Metropolitana do Recife. Nessas escolas, como se sabe, eles estudam as disciplinas Matemática e Física. Além disso, escolhemos focalizar nosso trabalho no ensino do uso do paquímetro, dispositivo amplamente utilizado nas medições de comprimento, no âmbito da indústria, dos serviços profissionais e nas ciências. O quadro teórico adotado é a transposição didática (Chevallard, 1991). A medição de comprimento requer a consideração de vários conceitos matemáticos, entre os quais o de número racional (a medida de comprimento) bem como o da incerteza do resultado dessa medição (o “erro de medida”). Optamos por investigar materiais didáticos disponíveis para os estudantes do citado curso, em particular duas apostilas de Metrologia e as coleções de Matemática de Física. Esses materiais foram analisados do ponto de vista de se constituírem um dos elementos que cumprem o papel de meios da transposição didática dos saberes em jogo. A análise dos dados obtidos revelou vários pontos em que o saber estabelecido no campo das grandezas e da medição de grandezas é abordado de modo inadequado, nos materiais didáticos examinados. Isso conduz à hipótese de que fica comprometida nesses materiais uma transposição didática que se apresente como um instrumento eficaz de aprendizagem dos estudantes. / The aim of this work was to investigate the teaching of length measurement for students Metrology course in a course of the National Technological Education Program - PRONATEC, under the Ministry of Education - MEC (BRAZIL, 2011). Such students are simultaneously enrolled in a public school in regular high school in the Metropolitan Region of Recife. In these schools, as we know, they study subjects Mathematics and Physics. In addition, we chose to focus our work in teaching the use of vernier caliper, widely used device for length measurements in the industry, professional services and science. The theoretical framework is the didactic transposition (Chevallard, 1991). The length measurement requires consideration of various mathematical concepts, including the rational number (gauge length) as well as the uncertainty of the result of measurement (the "measurement error"). We chose to investigate teaching materials available to students of that course, in particular two booklets Metrology and collections of Mathematical Physics. These materials were analyzed from the point of view of constituting one of the elements that play the role of means of didactic transposition of knowledge into play. The data analysis revealed several points where the established knowledge in the field of quantities and measured variables is addressed improperly in teaching materials examined. This leads to the hypothesis that is compromised in these materials a didactic transposition that is presented as an effective learning tool for students.
17

Framtagning och utveckling av flerfunktionellt bromsok / Development and design of a multifunctional brake caliper

Nygren, William, Franzén, Noah January 2024 (has links)
The deficient market for technically smart solutions regarding brake caliperspresents an opportunity that GETECH AB intends to explore. The task wasassigned to the students to investigate how a brake caliper adapted for the rearaxle of cars can be integrated with an electrically driven parking brake and ahydraulic handbrake adapted for motorsport. The work began with a market survey to understand what is currently offeredand what is missing. Intensive brainstorming sessions and discussions werethen initiated to create multiple concepts with solutions to the problem.Subsequently, requirements and data were gathered to be translated into aspecification. This specification became the basis for the selection criteriaused in the Pugh matrix to rank the various concepts, ultimately resulting in awinning concept that would be further developed. The winning concept underwent several iterations to contribute to functionaland design improvements, ultimately resulting in the final version. To ensurethat the final version would meet the required strength standards, multiplestrength analyses and calculations were performed to guarantee functionalityand safety. The simulations showed that the brake caliper's strengththeoretically meets the functional requirements set by Swedish inspection and the Transport Agency regarding performance. Once the concept, modeling, and strength checks were completed,manufacturing began. Detailed CAM preparations with clearly reviewed toolselections and tool paths were created, along with favorable fixtures tofacilitate clamping possibilities. All of this was to ensure a manufacturingprocess that delivers a quality result from a three-axis CNC milling machine. When the brake caliper was fully manufactured, it was assembled withstandard components. The caliper was then installed on a demonstrator whereits functions could be visualized and demonstrated. The result was a rearmulti-piston brake caliper with three braking functions in a single compactmodule. The brake caliper was made from an aluminum alloy and consisted ofa total of 53 components, four of which were manufactured in the CNCmachine. / Den bristfälliga marknaden på tekniskt smarta lösningar gällande bromsok ären möjlighet som GETECH AB har som avsikt att studera. Uppdraget tilldelades till studenterna för att utreda hur ett bromsok anpassat för bilars bakre axel kan integreras med en elektriskt driven parkeringsbroms och hydraulisk handbroms anpassad för motorsport. Arbetet inleddes med att undersöka marknaden för att skapa en förståelse för vad som erbjuds idag och vad som saknas. Därefter startades intensivabrainstorm sessioner och diskussioner för att skapa flertalet olika koncept med lösningar på problemet. Sedan samlades önskemål och data in för att översättas och föras in i en kravspecifikation. Kravspecifikationen blevgrunden till de urvalskriterier som sedan användes i Pugh-matrisen för att rangordna de olika koncepten som slutligen skulle resultera i ett vinnande koncept vilket skulle vidareutvecklas. Det vinnande konceptet genomgick flera iterationer för att bidra med funktion och designförbättringar för att till slut resultera i den slutliga versionen. För att konstatera att den slutliga versionen skulle uppnå de hållfasthetskrav som ställs utfördes flertalet hållfasthetsanalyser och beräkningar för att säkerställa funktion och säkerhet. Simuleringarna visade att bromsokets hållfasthet teoretiskt klarar de funktionskrav som svensk besiktning och Transportstyrelsen har gällande prestanda. När koncept, modellering och hållfasthetskontroller var utförda påbörjades tillverkning. Utförliga CAM beredningar med tydligt genomgångnaverktygsval och verktygsvägar skapades. Även gynnsamma fixturer för underlättandet av uppspänningsmöjligheter. Allt detta för att säkerställa en tillverkningsprocess som ger ett kvalitativt resultat från en tre-axlig CNC fräs. När bromsoket var färdigtillverkat monterades det ihop tillsammans med standardkomponenter. Därefter installerades oket på en demonstrator där bromsokets funktioner kunde visualiseras och demonstreras. Resultatet blev ett bakre flerkolvigt bromsok med tre bromsfunktioner i en enda kompakt modul. Bromsoket tillverkades ur en aluminiumlegering och bestod av totalt53 komponenter varav fyra var tillverkade i CNC-maskinen.
18

Brzdová soustava vozidla Formule Student / Formula Student Car Braking System

Pecina, Miroslav January 2018 (has links)
Design of braking system for the formula student car. Calculation of basic forces acting in the braking system. Mechanical analysis of the most important parts of the braking system. Manufacturing of brake pedal. Assembly brake components to brake system.
19

Zadní těhlice vozidla Formule Student / Formula Student Rear Wheel Carrier

Novák, Pavel January 2011 (has links)
The aim of this thesis is to create a design rear upright for a racing Formula Student category car. It is necessary to propose a design group of the rear wheel assembly with the upright with all requirements related thereto, for example solutions camber settings. Everything is modeled using the CAD system. There is developed computational model which is placed in ballast states of strain and stress analysis by finite element method. There is also designed a suitable material for the production of the rear upright which is optimized. The conclusion deals with the inclusion of the proposed arrangement in the overall vehicle assembly and is concluded with evaluation and suitability of the proposed solution.
20

Experimental Investigation of Judder in a Floating Disc-Caliper Braking System with Focus on Pad Geometry

Drabison, John Stephen, II 15 September 2010 (has links)
No description available.

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