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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.
1

Criação de uma base de dados de mãos e estaturas e obtenção de modelos de regressão em antropometria forense

Souza, Felipe Granado de January 2016 (has links)
Orientadora: Profª. Drª. Maria Elizete Kunkel / Dissertação (mestrado) - Universidade Federal do ABC. Programa de Pós-Graduação em Engenharia Biomédica, 2016. / O Brasil não possui uma base nacional de dados antropométricos de mãos. Este tipo de dados é fundamental para estudos de forense, biomecânica e ergonomia. A estatura, assim como sexo, idade e etnia é um dado fundamental na identificação humana. Equações de regressão podem ser usadas para a estimativa da estatura de uma pessoa a partir de medidas de parâmetros antropométricos da mão. Nesta pesquisa foi criada uma base de dados de medidas antropométricas das mãos e estaturas. Equações de regressão linear foram geradas para estimativa de estatura de uma pessoa a partir de uma medida da sua mão. A amostra totalizou 427 voluntários do estado de São Paulo (56,4% mulheres e 43,6% homens) com idade entre 18 e 60 anos. As medidas de comprimento e largura das mãos e comprimento dos dedos de 854 mãos foram obtidas de modo direto, com um paquímetro digital, e de modo indireto e semiautomático, com um software a partir das imagens das mãos digitalizadas. Tanto os valores numéricos quando as fotos da base de dados, MaoBD, serão disponibilizados em http://goo.gl/95s5Bz. A avaliação comparativa entre os métodos verificou pequenas discordâncias entre eles, porém o método indireto resultou em uma forma mais rápida e de baixo custo para a coleta dos dados podendo ser usado para ampliar a base de dados para representar a população brasileira. O comprimento da palma da mão foi o melhor parâmetro para estimativa de estatura. / Brazil does not have a national base of anthropometric data from hands. This type of data is critical to forensic biomechanics and ergonomics studies. Stature, as well as gender, age and ethnicity, are important data in human identification. Regression equations can be used to estimate the stature of a person from anthropometric measurements of the hand. In this research, an anthropometric database of the hands and statures was created. Linear regression equations were generated to mestimate the stature of a person from a measure of their hand. The sample has 427 volunteers of São Paulo (56.4% women and 43.6% men) aged between 18 and 60 years. Length and width of the hands and finger length of 854 hands were obtained in a direct method, with a digital caliper, and with an indirect and semi-automatic method by using a software to analyse digitalized images of hands. Both numeric values and photos of the database, MaoBD, will be available in http://goo.gl/95s5Bz. The comparative evaluation of the methods found little disagreement among them, but the indirect method has resulted in a faster and cost-effective method for data collection that can be used to extend a database representing the Brazilian population. The length of the palm was the best parameter for estimating stature.
2

Undersökning av handskens gradering

Byhmer, Fanny January 2019 (has links)
Ett av problemen som företag möter om de vill börja tillverka handskar är att det inte finns standarder kring mått eller konstruktion. Det finns en praxis på breddgradering som följer handens omkrets i tum, men ingenting i längd. Denna rapport undersöker olika längdgraderingar som används på den svenska marknaden. Genom att mäta och jämföra olika tillverkares handskar hittades tre olika längder på fingrar i storlek 8 och tre olika graderingar från dessa storlekar: 15 mm, 10 mm och 5 mm. Dessa graderingar delas lika över finger och handflata. Handskar i storlek 6-11 har sytts upp och provats av 28 personer, både män och kvinnor, som sedan svarat på en enkät om vilken handske de föredrog. Från enkäten kan utläsas handens mått i längd och omkrets, vilka handskar man provat, vilken man tyckte satt bäst samt vad man vill veta vid köp av handskar för att underlätta köpet. Av de som provat grundstorlek 8 föredrog fyra personer en längd på 8,5 cm på långfinger medan en person föredrog 8 cm. Ingen av personerna som provade föredrog en längd på 9 cm. För de andra storlekarna, graderade från en grund med fingerlängd 8,5 cm, föredrogs den gradering som gavs längst fingrar, följt av graderingen på 10 mm. Från detta kan läsas att det finns ett behov av olika längder för varje storlek och för att underlätta för kunden behövs tydliga måttlistor som informerar vilka mått handsken kommer passa. / One of the problems that companies who wishes to go into glove production faces today, is that there is no standardized measurements or constructions. There is a praxis for width grading, where you measure the hands circumference around the knuckles, in inches, but the are no such praxis for the length of the glove. This study compares different length gradings that are available on the Swedish market. By measuring and comparing different glove brands, three different finger length variations were found for size 8 as well as three different grading intervals between the sizes; 15mm, 10mm and 5mm. The grading intervals are divided equally between fingers and palm. Gloves in sizes 6-11 were constructed, sewn and finally fitted on 28 test subjects, both male and female. The subjects also submitted a questionnaire about their hand measurements, which gloves they tried on, which glove they preferred and if they would like any information about which body measurements the glove is fitted to when buying gloves. For size 8 it was found that four subjects preferred a finger length of 8,5 cm on the middle finger while one preferred the shorter length of 8cm. For the other sizes, graded from a basic size of 8,5 cm at finger length, the preferred grading was the one that gave the glove the longest fingers, followed by the grading of 10mm. From these results it is clear that there is a need for different lengths for each glove size and that the customer would appreciate a measurements chart that shows what hand measurements the glove will fit.

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