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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

Avaliação algimétrica por estímulo nociceptivo térmico e pressórico em cães pré-tratados com levomepromazina, midazolam e quetamina, associados ou não ao butorfanol /

Barros, Gláucia Prada Rodrigues de. January 2002 (has links)
Orientador: Flávio Massone / Banca: Stélio Pacca Loureiro Luna / Banca: Newton Nunes / Resumo: Este estudo analisou os resultados obtidos com o uso do butorfanol, um opióide agonista-antagonista com atividade agonista nos receptores kappa (κ) que são responsáveis pela analgesia, sedação, sem depressão do sistema cario-pulmonar e temperatura corpórea e atividade antagonista nos receptores mi (μ) que produzem analgesia e sedação. Este opióide é altamente lipossolúvel e tem lenta dissociação dos receptores, sendo usado como um agente para restrição, indução anestésica e como analgésico. Sendo assim, o objetivo deste estudo foi provar que o butorfanol apresenta sinergismo quando associado na medicação pré-anestésica, aumentado assim, o período hábil anestésico e a qualidade da manutenção dos parâmetros, além de avaliar a algimetria de maneira a estipular um gradiente térmico e pressórico. Foram utilizados dez cães sadios, machos ou fêmeas, controles de si próprio, divididos em três grupos. O grupo um (GI) foi pré-medicado com levomepromazina (1 mg/kg) pela via intravenosa e após 15 minutos foi administrado quetamina (15 m/;kg) pela via intramuscular. O grupo dois (GII) recebeu levomepromazina (1 mg/kg), via intravenosa, como prémedicação e depois de decorridos 15 minutos, a associação de midazolam (0,2 mg/kg) + quetamina (15 mg/kg) foi administrada pela via intramuscular. O grupo três (GIII) teve a mesma pré-medicação que os grupos anteriores, e após 15 minutos foi administrado midazolam (0,2 mg/kg) + butorfanol (0,2 mg/kg)+quetamina (15 mg/kg) pela via intramuscular. Os parâmetros mensurados foram: temperatura retal, freqüência respiratória, volume corrente, volume minuto, termo-algimetria, presso-algimetria, freqüência cardíaca, pressão arterial sistólica, média e diastólica não invasiva, oximetria de pulso e capnografia. Os resultados obtidos foram submetidos à análise estatística, onde o teste de variância e de Tukey foram aplicados em todos os parâmetros citados. / Abstract: antagonist that exerts its effects mainly at opioid kappa receptors, producing analgesia and sedation with minimal cardiorespiratory depression and body temperature, and antagonist properties at mi receptors induced analgesia and sedation. The butorphanol is highly lipid soluble and have a slow rate of dissociation from receptor site. The objective this study was proved that butorphanol potentiate the sedative effects when associated preoperatively, and determine the thermal and mechanical antinociceptive activity of butorphanol. The dogs in group I (GI) were premedicated with 1,0 mg/kg of intravenous of levomepromazine and followed 15 minutes later by an intramuscular ketamine (15 mg/kg); in group II (GII) were administered a premedication with 1,0 mg/kg of intravenous of levomepromazine and 15 minutes later were administered midazolam (0,2 mg/kg) + ketamine (15 mg/kg) by intramuscular, and group III (GIII) were administered the same premedication and was administered intramuscular midazolam (0,2 mg/kg)+ketamine (15 mg/kg)+butorphanol (0,2 mg/kg). The observations recorded included rectal temperature, heart and respiratory rates, arterial blood pressure (systolic, diastolic and mean), oxygen saturation, tidal volume index, minute volume index and end-tidal CO2 tension, thermal and mechanical antinociceptive activity. The analgesia was demonstrade in GIII when the stimulation thermal and mechanical was used. The effect antinociceptive with midazolam-ketamine-butorphanol was about 60-180 minutes to thermal and 45-180 minutes to mechanical stimulation. / Mestre
2

Avaliação algimétrica por estímulo nociceptivo térmico e pressórico em cães pré-tratados com levomepromazina, midazolam e quetamina, associados ou não ao butorfanol

Barros, Gláucia Prada Rodrigues de [UNESP] 01 March 2002 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:23:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2002-03-01Bitstream added on 2014-06-13T18:51:16Z : No. of bitstreams: 1 barros_gpr_me_botfmvz.pdf: 2031132 bytes, checksum: 5e18ed707748aefda5dcf83b915587e0 (MD5) / Este estudo analisou os resultados obtidos com o uso do butorfanol, um opióide agonista-antagonista com atividade agonista nos receptores kappa (κ) que são responsáveis pela analgesia, sedação, sem depressão do sistema cario-pulmonar e temperatura corpórea e atividade antagonista nos receptores mi (μ) que produzem analgesia e sedação. Este opióide é altamente lipossolúvel e tem lenta dissociação dos receptores, sendo usado como um agente para restrição, indução anestésica e como analgésico. Sendo assim, o objetivo deste estudo foi provar que o butorfanol apresenta sinergismo quando associado na medicação pré-anestésica, aumentado assim, o período hábil anestésico e a qualidade da manutenção dos parâmetros, além de avaliar a algimetria de maneira a estipular um gradiente térmico e pressórico. Foram utilizados dez cães sadios, machos ou fêmeas, controles de si próprio, divididos em três grupos. O grupo um (GI) foi pré-medicado com levomepromazina (1 mg/kg) pela via intravenosa e após 15 minutos foi administrado quetamina (15 m/;kg) pela via intramuscular. O grupo dois (GII) recebeu levomepromazina (1 mg/kg), via intravenosa, como prémedicação e depois de decorridos 15 minutos, a associação de midazolam (0,2 mg/kg) + quetamina (15 mg/kg) foi administrada pela via intramuscular. O grupo três (GIII) teve a mesma pré-medicação que os grupos anteriores, e após 15 minutos foi administrado midazolam (0,2 mg/kg) + butorfanol (0,2 mg/kg)+quetamina (15 mg/kg) pela via intramuscular. Os parâmetros mensurados foram: temperatura retal, freqüência respiratória, volume corrente, volume minuto, termo-algimetria, presso-algimetria, freqüência cardíaca, pressão arterial sistólica, média e diastólica não invasiva, oximetria de pulso e capnografia. Os resultados obtidos foram submetidos à análise estatística, onde o teste de variância e de Tukey foram aplicados em todos os parâmetros citados. / antagonist that exerts its effects mainly at opioid kappa receptors, producing analgesia and sedation with minimal cardiorespiratory depression and body temperature, and antagonist properties at mi receptors induced analgesia and sedation. The butorphanol is highly lipid soluble and have a slow rate of dissociation from receptor site. The objective this study was proved that butorphanol potentiate the sedative effects when associated preoperatively, and determine the thermal and mechanical antinociceptive activity of butorphanol. The dogs in group I (GI) were premedicated with 1,0 mg/kg of intravenous of levomepromazine and followed 15 minutes later by an intramuscular ketamine (15 mg/kg); in group II (GII) were administered a premedication with 1,0 mg/kg of intravenous of levomepromazine and 15 minutes later were administered midazolam (0,2 mg/kg) + ketamine (15 mg/kg) by intramuscular, and group III (GIII) were administered the same premedication and was administered intramuscular midazolam (0,2 mg/kg)+ketamine (15 mg/kg)+butorphanol (0,2 mg/kg). The observations recorded included rectal temperature, heart and respiratory rates, arterial blood pressure (systolic, diastolic and mean), oxygen saturation, tidal volume index, minute volume index and end-tidal CO2 tension, thermal and mechanical antinociceptive activity. The analgesia was demonstrade in GIII when the stimulation thermal and mechanical was used. The effect antinociceptive with midazolam-ketamine-butorphanol was about 60-180 minutes to thermal and 45-180 minutes to mechanical stimulation.
3

Development and Application of BowTie Risk Assessment Methodology for Carbon Geological Storage Projects

Irani, Mazda Unknown Date
No description available.
4

Validity of Cognitive Assessment Tools for Older Adult Hispanics: A Systematic Review

Arévalo, Sandra P., Kress, Jennifer, Rodriguez, Francisca S. 03 July 2023 (has links)
A higher prevalence and incidence of dementia is found in Hispanic/Latino older adults. Therefore, valid instruments are necessary to assess cognitive functioning in this population group. Our aim was to review existing articles that have examined and reported on the validity of cognitive assessment tools in Hispanic/Latino population groups in the United States.
5

Análise do efeito em termos de desempenho ambiental da substituição de eteno de origem fóssil por equivalente renovável na produção de poliestireno. / Assessment of the environmental performance effects associated with the replacement of ethylene from fossil by renewable resource in the polystyrene production.

Hansen, Adriana Petrella 27 June 2013 (has links)
O uso intensivo de petróleo tem sido matéria de discussões constantes por diferentes setores da sociedade, seja pela possibilidade de seu esgotamento ou pelos potenciais danos ambientais por ele ocasionados. Assim, com o intuito de minimizar os impactos gerados na produção de bens de consumo fundamentalmente constituídos por recursos fósseis, a indústria petroquímica se mobilizou no desenvolvimento de novas tecnologias. No que tange a produção de derivados poliméricos, a principal estratégia adotada nesse sentido está associada à substituição de petróleo por insumos manufaturados a partir de fontes renováveis. Esta solução visa tanto reduzir a extração dos recursos fósseis, quanto amenizar as emissões de gases efeito estufa. Entretanto, poucos são os estudos que avaliam os reais efeitos decorrentes desta medida, quantificando os impactos, positivos e negativos, ocasionados ao meio ambiente e ao homem. Diante deste fato, o presente trabalho tem por finalidade investigar os efeitos ambientais da substituição de eteno de origem fóssil por sucedâneo obtido via desidratação de etanol de cana-de-açúcar, no processo produtivo do poliestireno. O atendimento de tal objetivo foi alcançado a partir da aplicação da técnica de Avaliação do Ciclo de Vida (ACV), cuja visão sistêmica permite analisar a influência da troca de matérias- primas para a produção de uma tonelada de poliestireno cristal (GPPS) e uma tonelada de poliestireno de alto impacto (HIPS), respectivamente. A abordagem possui uma abrangência do berço-ao-portão da fábrica e faz uso do método de avaliação ReCiPe (H) Midpoint, versão 1.07. Considerando treze categorias de impacto, os resultados dos perfis de desempenho do GPPS e HIPS parcialmente renováveis apresentaram-se pior em: mudanças climáticas; acidificação terrestre; eutrofização; toxicidade humana; formação de oxidantes fotoquímicos e material particulado; ecotoxicidade terrestre e aquática; uso de solo agricultável e depleção de água; em resposta às atividades agrícolas para a produção de cana-de-açúcar. Por outro lado, os maiores consumos de gás natural e petróleo requeridos para a manufatura de eteno no sistema de produto do GPPS e HIPS fósseis, contribuíram para impactos relativamente superiores nas categorias de depleção de ozônio, transformação de solo natural e depleção de recursos fósseis. / The intensive use of oil has been a subject of constant discussion among different sectors of society, due to the fossil depletion and potential environmental damage caused by it. Therefore, in order to minimize impacts on the production of consumer goods made from fossil resources, the petrochemical industry has been developing new technologies. Regarding the production of polymer derivatives, the key strategy was to replace fossil assets by raw materials obtained from renewable resources, for the purpose of slowing down the extraction of crude oil, as well as balancing atmospheric emission of greenhouse gases. However, there are only few studies assessing the actual results of this solution, quantifying its positive and negative environmental impacts. Considering this scenario, this study aims to investigate the environmental effects associated to the replacement of ethylene produced from natural gas by ethylene obtained by sugarcane ethanol dehydration in the production of polystyrene. This study used the Life Cycle Assessment (LCA) methodology, which systemic view allows to analyze the influence of this substitution during the production of one ton of crystal polystyrene (GPPS) and one ton of high impact polystyrene (HIPS). The system boundary comprises a \"cradle-to-gate\" approach and uses ReCiPe Midpoint (H) V1.07 method to analyze thirteen environmental impacts. Both GPPS and HIPS partially made from renewable resource presented unfavorable results in ten impacts categories: climate change, terrestrial acidification, eutrophication, human toxicity, photochemical oxidants formation, particulate matter formation, terrestrial and freshwater Ecotoxicity, agricultural land occupation and water depletion. This scenario can be assigned to sugarcane production activities. On the other hand, the higher consumption of natural gas and crude oil required for the manufacture of ethylene in the fossil GPPS and HIPS system boundary contributed to greater impacts in the categories of ozone depletion, natural land transformation and fossil depletion.
6

Análise do efeito em termos de desempenho ambiental da substituição de eteno de origem fóssil por equivalente renovável na produção de poliestireno. / Assessment of the environmental performance effects associated with the replacement of ethylene from fossil by renewable resource in the polystyrene production.

Adriana Petrella Hansen 27 June 2013 (has links)
O uso intensivo de petróleo tem sido matéria de discussões constantes por diferentes setores da sociedade, seja pela possibilidade de seu esgotamento ou pelos potenciais danos ambientais por ele ocasionados. Assim, com o intuito de minimizar os impactos gerados na produção de bens de consumo fundamentalmente constituídos por recursos fósseis, a indústria petroquímica se mobilizou no desenvolvimento de novas tecnologias. No que tange a produção de derivados poliméricos, a principal estratégia adotada nesse sentido está associada à substituição de petróleo por insumos manufaturados a partir de fontes renováveis. Esta solução visa tanto reduzir a extração dos recursos fósseis, quanto amenizar as emissões de gases efeito estufa. Entretanto, poucos são os estudos que avaliam os reais efeitos decorrentes desta medida, quantificando os impactos, positivos e negativos, ocasionados ao meio ambiente e ao homem. Diante deste fato, o presente trabalho tem por finalidade investigar os efeitos ambientais da substituição de eteno de origem fóssil por sucedâneo obtido via desidratação de etanol de cana-de-açúcar, no processo produtivo do poliestireno. O atendimento de tal objetivo foi alcançado a partir da aplicação da técnica de Avaliação do Ciclo de Vida (ACV), cuja visão sistêmica permite analisar a influência da troca de matérias- primas para a produção de uma tonelada de poliestireno cristal (GPPS) e uma tonelada de poliestireno de alto impacto (HIPS), respectivamente. A abordagem possui uma abrangência do berço-ao-portão da fábrica e faz uso do método de avaliação ReCiPe (H) Midpoint, versão 1.07. Considerando treze categorias de impacto, os resultados dos perfis de desempenho do GPPS e HIPS parcialmente renováveis apresentaram-se pior em: mudanças climáticas; acidificação terrestre; eutrofização; toxicidade humana; formação de oxidantes fotoquímicos e material particulado; ecotoxicidade terrestre e aquática; uso de solo agricultável e depleção de água; em resposta às atividades agrícolas para a produção de cana-de-açúcar. Por outro lado, os maiores consumos de gás natural e petróleo requeridos para a manufatura de eteno no sistema de produto do GPPS e HIPS fósseis, contribuíram para impactos relativamente superiores nas categorias de depleção de ozônio, transformação de solo natural e depleção de recursos fósseis. / The intensive use of oil has been a subject of constant discussion among different sectors of society, due to the fossil depletion and potential environmental damage caused by it. Therefore, in order to minimize impacts on the production of consumer goods made from fossil resources, the petrochemical industry has been developing new technologies. Regarding the production of polymer derivatives, the key strategy was to replace fossil assets by raw materials obtained from renewable resources, for the purpose of slowing down the extraction of crude oil, as well as balancing atmospheric emission of greenhouse gases. However, there are only few studies assessing the actual results of this solution, quantifying its positive and negative environmental impacts. Considering this scenario, this study aims to investigate the environmental effects associated to the replacement of ethylene produced from natural gas by ethylene obtained by sugarcane ethanol dehydration in the production of polystyrene. This study used the Life Cycle Assessment (LCA) methodology, which systemic view allows to analyze the influence of this substitution during the production of one ton of crystal polystyrene (GPPS) and one ton of high impact polystyrene (HIPS). The system boundary comprises a \"cradle-to-gate\" approach and uses ReCiPe Midpoint (H) V1.07 method to analyze thirteen environmental impacts. Both GPPS and HIPS partially made from renewable resource presented unfavorable results in ten impacts categories: climate change, terrestrial acidification, eutrophication, human toxicity, photochemical oxidants formation, particulate matter formation, terrestrial and freshwater Ecotoxicity, agricultural land occupation and water depletion. This scenario can be assigned to sugarcane production activities. On the other hand, the higher consumption of natural gas and crude oil required for the manufacture of ethylene in the fossil GPPS and HIPS system boundary contributed to greater impacts in the categories of ozone depletion, natural land transformation and fossil depletion.
7

Bedöma vårdbehov vid telefonrådgivning inom primärvården : - Distriktssköterskors erfarenheter / Assess care needs at telephone counseling in primary care : - District nurses' experiences

Andersson, Anna, Dusty, Mitra, Zöller, Jane January 2021 (has links)
Bakgrund: Primärvården är ofta den första instansen patienter söker sig till inom sjukvården. Vården som ges ska vara lättillgänglig och bestämmas av patienternas vårdbehov. För att kunna ha hög tillgänglighet och handlägga patienter på rätt vårdnivå är telefonrådgivning av distriktssköterskor en viktig del i primärvårdens verksamhet. Syfte: Att beskriva distriktssköterskors erfarenheter av att bedöma vårdbehov vid telefonrådgivning inom primärvården. Metod: Semistrukturerade intervjuer genomfördes med 18 distriktssköterskor som arbetar med telefonrådgivning inom primärvården. Intervjuerna transkriberades varefter texterna analyserades med kvalitativ innehållsanalys med manifest ansats. Resultat: Dataanalysen resulterade i följande fyra kategorier och sju underkategorier (inom parentes efter respektive kategori); svårigheter och utmaningar (kommunikationssvårigheter, ingen visuell kontakt, tidspress och stress), stöd i bedömning (kollegors stöd, beslutsstöd), copingstrategier (patientens vårdbehov i centrum) och verksamhetsutveckling (förslag på förbättringar). Slutsats: Telefonrådgivning av distriktssköterskor för att bedöma vårdbehov i primärvården är en svår och komplex verksamhet som kräver erfarenhet och stöd på olika sätt, men som distriktssköterskorna ansåg kan medföra positiva vinster och möjligheter till utveckling. / Background: Primary health care is often the first instance for patients to seek medical care. The health care provided must be easily accessible and determined by the patients' care needs. Telephone counseling by district nurses is an important part of primary health care to secure high availability and treat patients at the right level of care. Aim: To describe the district nurse's experiences of assessing care needs at telephone counseling in primary health care. Method: Semi-structured interviews were conducted with 18 district nurses who work with telephone counseling in primary health care. The interviews were transcribed and analyzed with qualitative content analysis with a manifest approach. Results: The data analysis resulted in the following four categories and seven subcategories (in parentheses by category); difficulties and challenges (communication difficulties, no visual contact, time pressure and stress), support in assessment (colleagues' support, decision support), coping strategies (patient's care needs in the center), and primary healthcare development (improvement suggestions). Conclusions: Telephone counseling by district nurses to assess care needs in primary health care is a difficult and complex activity that requires experience and support in various ways but may result in positive consequences and opportunities for development.
8

Human Health Risk Assessment for Petroleum Refining Industry of the Remaining Air Toxics after MACT I Emissions Reductions

Roa, Nadia C. 07 August 2008 (has links)
Inhalation risks on human health for hazardous air pollutants emitted from MACT I petroleum refining industry were determined using EPA HEM-3 Program. Methodology included compiling vertical and fugitive emissions from 2002 National Emissions Inventory for sources inside two facilities in Louisiana, 'Motiva Norco' and 'Valero St. Charles' refineries. Six cases were modeled applying EPA criteria, where cancer risks are 'low' if the probability is. 1/1, 000, 000, and non-cancer risks are harmful when hazard quotient is > 1. It was demonstrated that fugitive emissions have more impact on human health than the verticals because of their significant portion of the total refining emissions. HAPs can cause moderate adverse effects in humans living nearby refineries, as 113 people resulted in high risk of respiratory problems with Valero emissions, 4571 people resulted in 'moderate' risk of getting cancer with Motiva emissions, 2702 people with Valero emissions, and 11, 282 people with both refineries' emissions.
9

Геоморфолошко и хидролошко геонаслеђе Хомоља / Geomorfološko i hidrološko geonasleđe Homolja / Geomorphological and hydrological geoheritage of Homolje area

Miljković Đurđa 17 September 2018 (has links)
<p>Хомоље је орографски веома јасно дефинисана географска област у средишњем делу Источне&nbsp; Србије.&nbsp; Разноликост&nbsp; облика&nbsp; типично&nbsp; крашког&nbsp; карактера&nbsp; чије&nbsp; се&nbsp; фазе формирања могу пратити од иницијалне форме до потпуног развића, лака доступност и&nbsp; честина&nbsp; ретких&nbsp; облика&nbsp; и&nbsp; појава&nbsp; на&nbsp; малом&nbsp; простору,&nbsp; указују&nbsp; на&nbsp; примарно&nbsp; учешће крашких&nbsp; облика&nbsp; у&nbsp; рељефу&nbsp; обухваћене&nbsp; територије,&nbsp; који&nbsp; са&nbsp; флувијалним&nbsp; облицима представљају&nbsp; најзначајније&nbsp; садржаје&nbsp; геонаслеђа.&nbsp; У&nbsp; оквиру&nbsp;&nbsp; ове&nbsp; докторске дисертације,&nbsp; научно&nbsp; ће&nbsp; бити&nbsp; обрађени&nbsp; објекти&nbsp; геоморфолошког&nbsp; и&nbsp; хидролошког геонаслеђа&nbsp; Хомоља,&nbsp; од&nbsp; којих&nbsp; је&nbsp; само&nbsp; пет&nbsp; на&nbsp; Националној&nbsp; листи&nbsp; геонаслеђа&nbsp; Србије. Главни&nbsp; циљ&nbsp; докторске&nbsp; дисертације&nbsp; је&nbsp; да&nbsp; се&nbsp; аргументовано&nbsp; укаже&nbsp; на&nbsp; неоправдане празнине&nbsp; на&nbsp; карти&nbsp; геонаслеђа&nbsp; Источне&nbsp; Србије.&nbsp; Формирањем&nbsp; инвентара&nbsp; објеката геоморфолошког&nbsp; и&nbsp; хидролошког&nbsp; геонаслеђа&nbsp; Хомоља,&nbsp; биће&nbsp; издвојени&nbsp; они&nbsp; који располажу&nbsp; највећим&nbsp; потенцијалима&nbsp; у&nbsp; циљу&nbsp; одрживог&nbsp; развоја&nbsp; и&nbsp; заштите&nbsp; природне целине&nbsp; истраживаног&nbsp; подручја.&nbsp; Детаљна&nbsp; анализа&nbsp; и&nbsp; примена&nbsp; метода&nbsp; за&nbsp; евалуацију<br />геолокалитета&nbsp; ће&nbsp; омогућити&nbsp; истицање&nbsp; оних&nbsp; елемената&nbsp; који&nbsp; поједине&nbsp; облике&nbsp; и<br />локалитете&nbsp; у&nbsp; Хомољу&nbsp; фаворизују&nbsp; као&nbsp; посебно&nbsp; интересантне&nbsp; и&nbsp; атрактивне&nbsp; сегменте купног геодиверзитета у овом делу Источне Србије.<br />&nbsp;</p> / <p>Homolje je orografski veoma jasno definisana geografska oblast u središnjem delu Istočne&nbsp; Srbije.&nbsp; Raznolikost&nbsp; oblika&nbsp; tipično&nbsp; kraškog&nbsp; karaktera&nbsp; čije&nbsp; se&nbsp; faze formiranja mogu pratiti od inicijalne forme do potpunog razvića, laka dostupnost i&nbsp; čestina&nbsp; retkih&nbsp; oblika&nbsp; i&nbsp; pojava&nbsp; na&nbsp; malom&nbsp; prostoru,&nbsp; ukazuju&nbsp; na&nbsp; primarno&nbsp; učešće kraških&nbsp; oblika&nbsp; u&nbsp; reljefu&nbsp; obuhvaćene&nbsp; teritorije,&nbsp; koji&nbsp; sa&nbsp; fluvijalnim&nbsp; oblicima predstavljaju&nbsp; najznačajnije&nbsp; sadržaje&nbsp; geonasleđa.&nbsp; U&nbsp; okviru&nbsp;&nbsp; ove&nbsp; doktorske disertacije,&nbsp; naučno&nbsp; će&nbsp; biti&nbsp; obrađeni&nbsp; objekti&nbsp; geomorfološkog&nbsp; i&nbsp; hidrološkog geonasleđa&nbsp; Homolja,&nbsp; od&nbsp; kojih&nbsp; je&nbsp; samo&nbsp; pet&nbsp; na&nbsp; Nacionalnoj&nbsp; listi&nbsp; geonasleđa&nbsp; Srbije. Glavni&nbsp; cilj&nbsp; doktorske&nbsp; disertacije&nbsp; je&nbsp; da&nbsp; se&nbsp; argumentovano&nbsp; ukaže&nbsp; na&nbsp; neopravdane praznine&nbsp; na&nbsp; karti&nbsp; geonasleđa&nbsp; Istočne&nbsp; Srbije.&nbsp; Formiranjem&nbsp; inventara&nbsp; objekata geomorfološkog&nbsp; i&nbsp; hidrološkog&nbsp; geonasleđa&nbsp; Homolja,&nbsp; biće&nbsp; izdvojeni&nbsp; oni&nbsp; koji raspolažu&nbsp; najvećim&nbsp; potencijalima&nbsp; u&nbsp; cilju&nbsp; održivog&nbsp; razvoja&nbsp; i&nbsp; zaštite&nbsp; prirodne celine&nbsp; istraživanog&nbsp; područja.&nbsp; Detaljna&nbsp; analiza&nbsp; i&nbsp; primena&nbsp; metoda&nbsp; za&nbsp; evaluaciju<br />geolokaliteta&nbsp; će&nbsp; omogućiti&nbsp; isticanje&nbsp; onih&nbsp; elemenata&nbsp; koji&nbsp; pojedine&nbsp; oblike&nbsp; i<br />lokalitete&nbsp; u&nbsp; Homolju&nbsp; favorizuju&nbsp; kao&nbsp; posebno&nbsp; interesantne&nbsp; i&nbsp; atraktivne&nbsp; segmente kupnog geodiverziteta u ovom delu Istočne Srbije.<br />&nbsp;</p> / <p>Homolje&nbsp; area&nbsp; is very clearly&nbsp; defined&nbsp; as&nbsp; a&nbsp; geographical&nbsp; area in the central part of Eastern Serbia.&nbsp; The&nbsp; diversity&nbsp; of&nbsp; the&nbsp; typical&nbsp; karst&nbsp; terrain,&nbsp; whose&nbsp; formation&nbsp; phases&nbsp; can&nbsp; be&nbsp; traced from&nbsp; initial&nbsp; forms&nbsp; to&nbsp; complete&nbsp; development,&nbsp; easy&nbsp; access&nbsp;&nbsp; and&nbsp; many&nbsp; rare&nbsp; forms&nbsp; of landscapes&nbsp; indicate&nbsp; the&nbsp; primary&nbsp; participation&nbsp; of&nbsp; karst&nbsp; forms&nbsp; in&nbsp; the&nbsp; relief,&nbsp; which,&nbsp; with fluvial forms, represent the most important&nbsp; features of geoheritage. In this&nbsp; PhD&nbsp; thesis,&nbsp; the geomorphological&nbsp; and&nbsp; hydrological&nbsp; geosites&nbsp; of&nbsp; Homolje&nbsp; area&nbsp; will&nbsp; be&nbsp; scientifically processed, of which only five are on the&nbsp; National list of geoheritage of Serbia. The main goal of the PhD&nbsp; thesis&nbsp; is to argue on the unjustified gaps on the map of geoheritage of the Eastern&nbsp; Serbian. By establishing the&nbsp; Inventory of the geomorphological and hydrological geosites&nbsp; of&nbsp; Homolje&nbsp; area,&nbsp; those&nbsp; who&nbsp; have&nbsp; the&nbsp; greatest&nbsp; potentials&nbsp; for&nbsp; the&nbsp; purpose&nbsp; of sustainable&nbsp; development&nbsp; and&nbsp; protection&nbsp; of&nbsp; the&nbsp; nature&nbsp; of&nbsp; the&nbsp; investigated&nbsp; area&nbsp; will&nbsp; be separated.&nbsp; Detailed&nbsp; analysis&nbsp; and&nbsp; application&nbsp; of&nbsp; geosites&nbsp; assessment,&nbsp; will&nbsp; enable&nbsp; the emphasis&nbsp; of those elements that favor certain forms and&nbsp;&nbsp; phenomena&nbsp; in Homolje&nbsp; area&nbsp; as particularly interesting and attractive segments of total geodiversity in this part of Eastern Serbia.</p>
10

Flying Wing Drone Impact Study / Kollisionsstudie flygande vinge

Nilsson, Sara January 2021 (has links)
The Swedish Sea Rescue Society (SSRS) is exploring how small, remotely launched drones can help in making the rescue work safer and more efficient. The planned drone to be used for such purposes is a 1 kg, 1 m wide, foam constructed, flying wing drone. Aviation regulatory authorities are however struggling with the problem posed by balancing the benefits of unmanned aerial vehicles (UASs) with the safety risk posed to manned aircraft, people and structures on the ground. A risk assessment framework called Specific Operations Risk Assessment (SORA) states specifications on risks that a certain operation can generate. An impact study was requested from SSRS as the purpose of this master thesis, to make sure the drones will not cause danger to other aircraft in the same airspace. SSRS needs to know how dangerous their drone is according to the regulations and how they can improve the design. A literature study was made to determine the critical scenarios for the UAVs area of application. A mathematical collision model was developed where the properties of the flying wing were considered to determine the energies involved. The results provide limits for when a small flying wing poses danger in its area of operation. The results also shows the effects of having a crumple zone included in the construction. A crumple zone only makes a difference when colliding at lower speeds. For the future, a combined model for the UAV to be used with the collision object would provide more accurate results since they affect each other in the collision. / Sjöräddningssällskapet (SSRS) undersöker hur små, fjärrstyrda drönare kan göra deras räddningsarbete säkrare och effektivare. Den planerade drönaren som ska användas för sådana ändamål är en 1 kg, 1 m bred, skumkonstruerad, drönare av typen flygande vinge. Luftfartsmyndigheterna strävar efter att balansera fördelarna med obemannade flygfordon (UAS) med säkerhetsrisken för bemannade flygplan, människor och byggnader. En riskbedömningsram som benämns Specific Operations Risk Assessment (SORA) anger specifikationer för risker som en viss tillämning kan generera. En konsekvensstudie vid kollision med drönare begärdes från SSRS som syfte med detta examensarbete. Detta för att säkerställa att drönarna inte kommer att orsaka fara för andra flygfarkoster i samma luftrum som deras UAV ska användas. SSRS behöver veta hur riskfylld deras drönare är enligt riskspecifikationerna och hur de kan förbättra sin design. En litteraturstudie gjordes för att bestämma de kritiska scenarierna för deras drönares tillämpningsområde. En matematisk kollisionsmodell har utveklats som tar hänsyn till drönarens material och konstruktion och hur det påverkar de involverade energierna. Resultaten sätter gränser för när en liten fjärrstyrd drönare kan utgöra fara i sitt användningsområde. Resultaten visar också effekten av att ha en deformationszon på drönaren. En deformationzon visar sig, bara göra skillnad i kollisioner vid låga hastigheter. För framtiden skulle en kombinerad modell för den UAV som ska användas med kollisionsobjektet ge mer exakta resultat, eftersom de påverkar varandra i kollisionen.

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