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Academic literature on the topic 'TLD'

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Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "TLD"

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Isra, Nur, Syamsul Arifin Lias, and Asmita Ahmad. "KARAKTERISTIK UKURAN BUTIR DAN MINERAL LIAT TANAH PADA KEJADIAN LONGSOR (STUDI KASUS: SUB DAS JENEBERANG)." Jurnal Ecosolum 8, no. 2 (October 30, 2019): 62. http://dx.doi.org/10.20956/ecosolum.v8i2.7874.

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Longsor dapat dipicu oleh karateristik tanah yang terbentuk pada suatu wilayah yang dipengaruhi oleh ukuran fraksi tanah, terutama fraksi tanah yang berukuran lebih halus, yaitu fraksi tanah dari mineral liat. Stabililitas wilayah sub DAS Jeneberang pasca kejadian runtuhnya kaldera Gunung Bawakaraeng, menyebabkan gangguan berupa longsoran disekitar wilayah sub DAS lainnya. Penelitian ini bertujuan untuk mengetahui karakteristik ukuran butir dan mineral liat tanah pada kejadian longsor di sub DAS hulu Jeneberang. Penelitian ini menggunakan metode deskriptif kuantitatif dengan mengidentifikasi ukuran butir menggunakan ayakan ASTM 48 dan mineral liat tanah menggunakan FTIR. Titik longsor (TL) ditentukan dari kejadian longsor yang terjadi dan titik pembanding (TPB) ditentukan dari topografi dan bahan induk yang sama dengan titik longsor. Topografi pada daerah penelitian berombak hingga sangat curam dengan rata-rata curah hujan delapan tahun terakhir 3484 mm/tahun. Hasil analisis Ukuran butiran pada semua titik longsor dan titik pembanding didominasi ukuran 0,5 mm dengan bentuk butiran subrounded pada TL1, TL3, TL5, TL6, TL7, TL8, TL 10, TPB3, TPB4 dan subangular pada TL2, TL4, TL9, TPB1, TPB2. Dari hasil analisis mineral liat bahwa mineral liat dominan pada TL1, TL2, TL3, TL10, TPB1, TPB2 adalah kaolinit. TL6, TL5 adalah haloisit. TL8, TL4 adalah montmorilonit. TL9, TL7, TPB3 adalah klorit dan TPB4 adalah nakrit. Longsor yng terjadi dipicu oleh mineral liat tersedia yaitu kaolinit, haloisit, montmorilonit, dan klorit, sementara ukuran butir tanah tidak memberikan banyak pengaruh pada kejadian longsor.Kata kunci: Sub DAS Jeneberang, Longsor, Ukuran Butir, Mineral Liat Tanah
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Kamilov, B., M. Yuldashov, R. Khakimova, and M. Ibodova. "Age and growth of two bream species in the Tudakul reservoir of Uzbekistan." E3S Web of Conferences 244 (2021): 02041. http://dx.doi.org/10.1051/e3sconf/202124402041.

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The study was carried out in 2014-2018 at the Tudakul reservoir, Uzbekistan. Samples included 278 European bream (Abramis brama), and 83 Amur white bream (Parabramis pekinensis). The age, total length and weight of the fish varied from 1 to 5 years, from 14 to 50 cm, from 30 to 1,405 g for the European bream and from 1 to 6 years, from 24 to 53.5 cm and 105 – 2,138 g for the white Amur bream and European bream, respectively. The relationship between total length (TL) and weight (W) is described by the equation W = 0.005 * TL3.2555 (r = 0.98) for European bream and W = 0.005 * TL3.201 (r = 0.96) for white Amur bream. Recovered average growth rate of European bream: TL1 - 13.5 cm; TL2 - 28.1 cm, TL3 - 37.95 cm, TL4 - 42.6 cm, TL5 - 48.6 cm.The average height of the Amur white bream: TL1 - 12.6 cm, TL2 - 23.3 cm, TL3 - 31.5 cm, TL4 - 37.9 cm, TL5 - 41.7 cm, TL6 - 44.2 cm. Lee’s phenomenon did not appear. All yearling fish were juvenile. In 2-year-old fish of both sexes of both species, the gonads were at stage II. Males and females of both species reached their first maturity at 3-4 years of age, when the total body length of the European bream was 30–32 cm, and the Amur white bream was 34–35 cm.
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Rassow, J., C. Klein, and P. Meissner. "Supralinearity Behaviour of TLD-300 and TLD-700." Radiation Protection Dosimetry 23, no. 1-4 (June 1, 1988): 409–12. http://dx.doi.org/10.1093/rpd/23.1-4.409.

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Rassow, J., C. Klein, and P. Meissner. "Supralinearity Behaviour of TLD-300 and TLD-700." Radiation Protection Dosimetry 23, no. 1-4 (June 1, 1988): 409–12. http://dx.doi.org/10.1093/oxfordjournals.rpd.a080208.

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Kafadar, Vural E. "Thermal quenching of thermoluminescence in TLD-200, TLD-300 and TLD-400 after β-irradiation." Physica B: Condensed Matter 406, no. 3 (February 2011): 537–40. http://dx.doi.org/10.1016/j.physb.2010.11.032.

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Chung, Kwang Hyun, Young Sook Park, Sang Bong Ahn, and Byoung Kwan Son. "Radiation protection effect of mobile shield barrier for the medical personnel during endoscopic retrograde cholangiopancreatography: a quasi-experimental prospective study." BMJ Open 9, no. 3 (March 2019): e027729. http://dx.doi.org/10.1136/bmjopen-2018-027729.

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ObjectiveTo investigate the effectiveness of radiation protection offered by a newly designed mobile shield barrier for medical personnel during endoscopic retrograde cholangiopancreatography (ERCP).DesignQuasi-experimental prospective study.SettingERCP procedures conducted between October 2016 and June 2017 at a single secondary referral hospital that performs approximately 250 therapeutic ERCP procedures annually.InterventionsThe mobile shield barrier was a custom-made 2 mm Pb shielding plate (width: 120 cm, height: 190 cm) with a 0.5 mm Pb window (width: 115 cm, height: 60 cm) on its upper part was used. Four wheels were attached to the bottom to allow easy moving.Primary and secondary outcome measuresThe radiation doses were measured during ERCP using personal thermoluminescence dosimetry (TLD) badges on both sides of the mobile shield barrier (patient’s side: TLD1 and medical staff’s side: TLD2). The radiation doses were also measured on the outer surface of the thyroid shield of the endoscopist (TLD3), and on the chest area inside the protective apron of the endoscopist (TLD4) and the main assistant (TLD5). The TLD was changed and reported once every 3 months. The radiation dose measured by TLD badges were compared.ResultsDuring the study period, a total of 128 ERCP procedures were performed. The mean fluoroscopy time per procedure was 244.9±257.0 s and the mean number of digital radiographs per procedure was 3.7±1.0. TLD1 (outside the barrier) had a mean radiation dose of 26.85±3.47 mSv and all the other TLDs (inside the barrier) had less than 1 mSv (p<0.001). In the post hoc analysis, the difference between TLD1 and others showed a statistical significance; however, there were no significant differences between the TLDs inside the barrier.ConclusionOur mobile shield barrier was useful to reduce the radiation exposure of medical personnel during ERCP.
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Hudson, F. R. "TLD patient monitoring." British Journal of Radiology 60, no. 710 (February 1987): 205. http://dx.doi.org/10.1259/0007-1285-60-710-205-a.

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Kafadar, V. Emir, A. Necmeddin Yazici, and R. Güler Yildirim. "The effects of heating rate on the dose response characteristics of TLD-200, TLD-300 and TLD-400." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 267, no. 19 (October 2009): 3337–46. http://dx.doi.org/10.1016/j.nimb.2009.06.114.

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Saito, Osami, Hisae Hirabayashi, Tatsuo Sonoda, Masami Yamaguchi, Yuji Hanyu, Mitsugu Omaki, Sachiko Ikeda, and Masao Usukura. "116. Study of TLD Dosimetry : 1 : TLD phosphers characteristics and reprodusibility." Japanese Journal of Radiological Technology 50, no. 2 (1994): 235. http://dx.doi.org/10.6009/jjrt.kj00003534598.

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Izak-Biran, T., S. Malchi, Y. Shamai, and Z. B. Alfassi. "Low Pre- and Post-Irradiation Fading of LiF:Mg, Ti (TLD-100, TLD-600, TLD-700) Using a Preheat Technique." Radiation Protection Dosimetry 64, no. 4 (May 2, 1996): 269–74. http://dx.doi.org/10.1093/oxfordjournals.rpd.a031583.

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Dissertations / Theses on the topic "TLD"

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Paiva, Fabio de. "Estudo das respostas de TLD tipo LiF para caracterização de campos mistos." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/85/85133/tde-18102016-105401/.

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A Terapia por Captura de Nêutrons, NCT (Neutron Capture Therapy) é uma técnica radioterápica em que a energia útil do tratamento vem da energia liberada em uma reação nuclear e não do feixe primário, como comumente utilizado em outros procedimentos radioterápicos. O Boro, por constituir-se em um elemento de baixa toxicidade e por apresentar um isótopo (10B) com alta seção de choque para a reação 10B(n,α)7Li tem sido o elemento mais utilizado nas pesquisas que visam o aprimoramento e a promoção desta técnica, derivando daí o termo BNCT (Boron Neutron Capture Therapy). Para fins de pesquisa em BNCT foi construída ao longo de um dos extratores de feixes (BH - Beam Hole) do reator IEA-R1 uma instalação, onde filtros e moderadores são posicionados entre o núcleo do reator e a posição de irradiação com o objetivo de modular o feixe de irradiação, otimizando a componente útil do feixe, os nêutrons térmicos, e reduzindo os contaminantes, raios gama e nêutrons em outras faixas energéticas. Tem-se realizado estudos visando a implementação de melhorias na caracterização e otimização do feixe obtido nesse arranjo instalado no BH-3. Atualmente a monitoração dos nêutrons é feita através de folhas de ativação, e a componente gama pelo TLD-400. Uma nova metodologia de monitoração tem sido estudada pelo grupo. A referida técnica consiste em usar TLDs de tipos diferentes, ou seja, que possuam sensibilidades distintas aos nêutrons térmicos, em virtude de diferenças na concentração dos isótopos de Lítio. No estudo dessa nova metodologia têm sido usados os TLD-600 e TLD-700. Este trabalho propõe uma metodologia usando o par TLD-100 e TLD-700. Inicialmente foi verificada a reprodutibilidade das respostas dos TLDs 700, 400 e 100 frente a campos gama puro e campos mistos, gama e nêutron. Campos estes obtidos em arranjos usando fontes de 60Co e 241AmBe. A partir de simulações usando o VI MCNP5 foi projetado e construído um Irradiador de campos mistos, que permitiu expor os dosímetros em campos mistos com diferentes espectros energéticos. As condições criadas no irradiador permitiram verificar, como a resposta do TLD é modificada pelas mudanças no espectro energético de um campo misto gama e nêutrons de baixo fluxo. O irradiador de campo misto permitiu condições para estabelecer uma relação entre o formato da curva termoluminescente e a composição do campo misto. A relação estabelecida relaciona o fluxo relativo e a razão entre a resposta das duas regiões de interesse dos TLDs 700 e 100. A partir de campos mistos com condições controladas, esse trabalho permitiu verificar a viabilidade do uso do par de TLD-100 e TLD-700 para monitoração de nêutrons térmicos na instalação de BNCT.
Neutron Capture Therapy (NCT), is a radiotherapy technique in which the useful treatment energy comes from the energy released in a nuclear reaction and not from the primary beam, as commonly used in other radiotherapc procedures. Boron, an element of low toxicity presents an isotope (10B) with high cross-section for the (n, α) reaction and therefore has been the element mostly used in research aimed at the improvement and promotion of this technique, deriving hence the term BNCT (Boron Neutron Capture Therapy). For BNCT research purposes, a facility was built along one of radiation extractors of the IEA-R1 reactor. In this facility filters and moderators are positioned between the reactor core and the irradiation position aiming to modulate the irradiation beam by optimizing the useful component of the beam, thermal neutrons, and reducing its contaminants, gamma rays and neutrons in higher energy bands. We have conducted studies aimed at implementing improvements in the characterization of and optimization of the beam. Currently, neutron flux monitorion is done through activation foils, and the gamma component by TLD-400. A new methodology has been studied by the group. The technique consists in using different types of TLD, having different sensitivities to thermal neutrons due to differences in the concentration of lithium isotopes. In the study of this new methodology TLD 600 and TLD-700 have been used. This work presents a series of studies in order to apply a methodology using the TLD-100 and TLD-700 pair. TLDs 700, 400 and 100 responses pure gamma and mixed irradiation fields, obtained in arrangements using a 60Co and AmBe sources, were evaluaterd. MCNP simulations were run in order to both discriminating the radiation components and designing one mixed fields irradiator, which allowed exposing dosimeters in mixed fields with different energy spectra. The conditions created in the irradiator allowed to verify, as the TLD response is modified by changes in the energy spectrum of a mixed gamma neutron fields. VIII This irradiator provided irradiation conditions so to establish a relationship between the shape of the LiF glow curves and the composition of the mixed field. This work has shown the feasibility of using the TLD-100 and TLD-700 pair for gamma and thermal neutrons monitoration in the BNCT facility.
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Junior, Valdeci Carneiro. "Caracterização do campo de nêutrons na instalação para estudo em BNCT no Reator IEA-R1." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/85/85133/tde-01092009-172117/.

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Este trabalho tem como objetivo realizar a caracterização do campo de nêutrons e radiação gama na posição de irradiação de amostras em uma instalação para pesquisas em Terapia por Captura de Nêutrons em Boro (BNCT) no IPEN, junto ao reator IEA-R1. A técnica de BNCT vem sendo estudada como uma opção seletiva e segura de tratamento para tumores cancerígenos resistentes ou considerados não tratáveis pelas técnicas convencionais, por exemplo, o Glioblastoma Multiforme - tumor cancerígeno no cérebro. Foram realizadas medições de fluxos de nêutrons térmicos, epitérmicos e rápidos bem como das doses devido a nêutrons, e radiação gama na posição de amostra, utilizando-se detectores de ativação tipo folha e dosímetros termoluminescente. Para determinação da intensidade e do espectro de energia de nêutrons, foi utilizado um conjunto de folhas de ativação de energias limiares distintas, irradiadas na instalação e analisadas com um detetor semicondutor de Germânio hiper puro acoplado a um sistema eletrônico adequado para espectrometria gama e os resultados processados com o código SAND-BP. As doses devidas a radiação gama e nêutrons foram determinadas utilizando dosímetros termoluminescentes: TLD-400 (sensível a gama); TLD-600 (sensível a nêutrons) e TLD-700 (sensível a gama). Os TLDs foram selecionados e usados para a obtenção das curvas de calibração - resposta do dosímetro versus dose - de cada uma dos três tipos de TLD, as quais foram utilizadas para calcular as doses devidas a nêutrons e gama na posição de amostra. O campo de radiação na posição de irradiação de amostra foi caracterizado fluxo para nêutrons térmicos de 1.39.108 ± 0,12.108 n/cm2s a dose devido a nêutrons térmicos é três vezes maior que as devido a radiação gama, essas medidas comprovam a reprodutibilidade e consistência dos resultados experimentais obtidos. Considerando os resultados obtidos, verificou-se que o campo de nêutrons e radiação gama atende para pesquisa em BNCT. NEUTRON
This work aims to characterize the mixed neutron and gamma field, in the sample irradiation position, in a research installation for Boron Neutron Capture Therapy (BNCT), in the IPEN IEA-R1 reactor. The BNCT technique has been studied as a safe and selective option in the treatment of resistant cancerigenous tumors or considered non-curable by the conventional techniques, for example, the Glioblastoma Multiform a brain cancerigenous tumor. Neutron flux measurements were carried out: thermal, ressonance and fast, as well as neutron and gamma rays doses, in the sample position, using activation foils detectors and thermoluminescent dosimeters. For the determination of the neutron spectrum and intensity, a set of different threshold activation foils and gold foils covered and uncovered with cadmium irradiated in the installation was used, analyzed by a high Pure Germanium semiconductor detector, coupled to an electronic system suitable for gamma spectrometry. The results were processed with the SAND-BP code. The doses due to gamma and neutron rays were determined using thermoluminescent dosimeters TLD 400 and TLD 700 sensitive to gamma and TLD 600, sensitive to neutrons. The TLDs were selected and used for obtaining the calibration curves dosimeter answer versus dose from each of the TLD three types, which were necessary to calculate the doses due to neutron and gamma, in the sample position. The radiation field, in the sample irradiation position, was characterized flux for thermal neutrons of 1.39.108 ± 0,12.108 n/cm2s the doses due to thermal neutrons are three times higher than those due to gamma radiation and confirm the reproducibility and consistency of the experimental findings obtained. Considering these results, the neutron field and gamma radiation showed to be appropriated for research in BNCT
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Amoush, Ahmad A. "Error Analysis of non-TLD HDR Brachytherapy Dosimetric Techniques." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1307105202.

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Munir, Hussan, and Misagh Moayyed. "Systematic Literature Review and Controlled Pilot Experimental Evaluation of Test Driven Development (TDD) vs. Test-Last Development (TLD)." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-4117.

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Context: Test-Driven development (TDD) is a software development approach where test cases are written before actual development of the code in iterative cycles. TDD has gained attention of many software practitioners during the last decade since it has suggested several benefits in the software development process. However, empirical evidence of its dominance in terms of internal code quality, external code quality and productivity is fairly limited. Objectives: The aim behind conducting this study is to explore what has been achieved so far in the field of Test-driven development. The study reports the benefits and limitation of TDD compared to TLD and the outcome variables in all the reported studies along with their measurement criteria. Additionally, an experiment is conducted to see the impact of Test-driven development (TDD) on internal code quality, external code quality and productivity compared to Test-Last development (TLD). Methods: In this study two research methodologies are used specifically systematic literature review according to Kitchenham guidelines and controlled pilot experiment. In systematic literature review number of article sources are considered and used, including Inspec, Compendex, ACM, IEEE Xplore, Science direct (Elsevier) and ISI web of science. A review protocol is created first to ensure the objectivity and repeatability of the whole process. Second, a controlled experiment is conducted with professional software developers to explore the assumed benefits of Test-Driven development (TDD) compared to Test-Last development (TLD). Results: 9 distinct categories related to Test-driven development (TDD) are found that are investigated and reported in the literature. All the reported experiments revealing very little or no difference in internal code quality, external code quality and productivity in Test-Driven development (TDD) over Test-Last development (TLD). However, results were found contradictory when research methods are taken into account because case studies tend to find more positive results in the favor Test-Driven development (TDD) compared to experiments possibly due to the fact that experiment are mostly conducted in artificially created software development environment and mostly with students as a test subjects. On the other hand, experimental results and statistical analysis show no statistically significant result in the favor TDD compared to TLD. All the values found related to number of acceptance test cases passed (Mann-Whitney U test Exact Sig. 0.185), McCabe’s Cyclomatic complexity (Mann-Whitney U test Exact Sig. 0.063), Branch coverage (Mann-Whitney U test Exact Sig. 0.212), Productivity in terms of number of lines of code per person hours (Independent sample Ttest Sig. 0.686), productivity in terms number of user stories implemented per person hours (Independent sample T-test Sig. 0.835) in experiment are statistically insignificant. However, static code analysis (Independent sample T-test Sig. 0.03) result was found statistically significant but due to the low statistical power of test it was not possible to reject the null hypothesis. The results of the survey revealed that the majority of developers in the experiment prefer TLD over TDD, given the lesser required level of learning curve as well as the minimum effort needed to understand and employ TLD compared to TDD Conclusion: Systematic literature review confirms that the reported benefits of TDD development compared to Test-Last development are very small. However, case studies tend to find more positive results in the favor of Test-Driven development (TDD) compared to Test-Last development (TLD). Similarly, experimental findings are also confirming the fact that TDD has small benefits over TLD. However, given the small effect size there is an indication that (Test-Driven development) TDD endorses less complex code compared to Test-Last development (TLD).
Systematic literature review confirms that the reported benefits of TDD development compared to Test-Last development are very small. However, case studies tend to find more positive results in the favor of Test-Driven development (TDD) compared to Test-Last development (TLD). Similarly, experimental findings are also confirming the fact that TDD has small benefits over TLD. However, given the small effect size there is an indication that (Test-Driven development) TDD endorses less complex code compared to Test-Last development (TLD).
hassanmunirr@hotmail.com, mm1844@gmail.com
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CHOKKALINGAM, BALACHANDER. "Evaluation of TLD/Predator algorithm : Evaluation of TLD(aka Predator) algorithm used for real-time tracking of unknownobjects in a video stream from eye tracking perspective." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-142017.

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Abstract TLD is an award-winning, real-time algorithm for long-term tracking of unknown objects in video streams. The object of interest is defined by a bounding box in a single frame. TLD simultaneously tracks the object, Learns its appearance and Detects it whenever it appears in the video. The result is a real-time tracking that typically improves over time. Long-term tracking of arbitrary objects is a the core problem in many computer vision applications: surveillance, object auto-focus, SLAM, games, HCI, video annotation etc. The following work is done: 1. The OpenTLD algorithm is extended for Multi-Object Tracking. 2. The OpenTLD algorithm is evaluated (i.e. problems with the algorithm, usability of the algorithm), specially from Eye tracking perspective. 3. The OpenTLD algorithm is compared with other tracking algorithm e.g. Mean shift in OpenCV in terms of tracking performance. 4. Some enhancements to the OpenTLD algorithm are made.
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Berry, Richard. "Structure and Functional Regulation of Mammalian BMP-1/TLD Family Proteinases." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501986.

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TAVEIROS, Silvia Fabiane Alves. "Integração de TLD e algoritmo de Haar para rastreamento de faces." Universidade Federal de Pernambuco, 2011. https://repositorio.ufpe.br/handle/123456789/2132.

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Made available in DSpace on 2014-06-12T15:54:48Z (GMT). No. of bitstreams: 2 arquivo7603_1.pdf: 2766072 bytes, checksum: 45006307abb4b9f20d8348671c07565d (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2011
A interação natural diz respeito à forma natural como as pessoas se comunicam, seja através de gestos, expressões e movimentos. Pesquisas nessa área tentam construir sistemas que possam compreender essas ações. Sistemas baseados em interação natural são uma tecnologia não intrusiva, a qual não é notada pelo usuário no cotidiano e tem um bom tempo de resposta de processamento. As interfaces atuais tentam se aproximar cada vez mais das perspectivas humanas, sendo ainda limitadas por tecnologias de entrada de dados não adequadas. Dentro deste contexto se encontram as técnicas de realidade aumentada sem marcadores (MAR), que realizam o rastreamento e o registro de objetos virtuais em cenas reais sem a utilização de elementos intrusivos às cenas, fator que possibilita sua utilização em ambientes pouco controlados e tornam sua definição mais complexa. Um ramo de aplicação em destaque nos meios acadêmico e industrial é o rastreamento de faces tanto do ponto de vista de aplicações de MAR quanto de sistemas de segurança, devido à possibilidade de facilitar o reconhecimento automático de faces em cenários de tempo real. A capacidade de estimar a pose da cabeça de outra pessoa é uma habilidade humana comum, mas que representa um desafio para os sistemas de visão computacional. Um rastreador de posição de face ideal deve ser invariante a rotação e escala, ser robusto, inicializar automaticamente, suportar oclusão parcial e total, além de mudança de iluminação e movimentos de cabeça rápidos. Neste trabalho desenvolvemos um sistema de rastreamento de face interativo que utiliza técnicas 2D, uma câmera e características naturais da cena para se obter um rastreamento que contenha as requisições necessárias por um estimador de face ideal. O algoritmo utilizado para o rastreamento de face de longo prazo integrou duas técnicas para obtenção de uma aplicação robusta e em tempo real: algoritmo de Haar e TLD (tracking learnig detect), sendo que o primeiro é responsável pela inicialização automática da face no ambiente, enquanto o segundo utiliza técnicas de aprendizado supervisionado, usando os próprios erros para aprimorar o rastreamento
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Luboya, Silhady Tshitende. "Response of Footbridges equipped with TLD : A numerical and experimental assessment." Thesis, KTH, Bro- och stålbyggnad, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-278563.

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In recent years, an increase to design slender and aesthetically-pleasing structures have resulted in some structures having a low natural frequency. This is because the design calculation did not meet the requirement of serviceability performance. Structures can experience excessive vibrations when they are subjected to different types of dynamic loading. A device can be installed to prevent these vibrations.In this thesis, we study the response of buildings and lateral vibrations of footbridges equipped with Tuned Liquid Damper. The aim is to mitigate the first mode of vibration. Tuned Liquid Damper consists of a container in rectangular, cylindrical or arbitrary shape partially filled with shallow liquid, most often water is used as a regulating device system. The design properties of Tuned Liquid Damper is introduced and it is based on the analogyof the most popular damper, Tuned Mass Damper.An experimental study of a building frame model with four floors is conducted to validate the numerical results obtained from the simulation of the model in ANSYS. The linear and non-linear analysis are performed through a system coupling between Ansys mechanical and Fluent solver. The simulation results obtained are in good agreement with the experimental results.A parametric study is conducted with a simply supported steel footbridge. It is a 45 m long span with 3 m width and the flexural rigidity is modified to get the lateral vibration mode. The first lateral natural frequency obtained is 0.713 Hz. The load case for the study considered is according to Sétra guide. The variable parameters studied is the Tuned Liquid Damper water mass ratios: 0.7%, 1.0%, 2.0%, 3.0% and 4.0%. The results show a satisfactory performance of the footbridge model equipped with Tuned Liquid Damper. The accelerations are below 0.1 m/s2 which satisfied the requirement of 0.15 m/s2.
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Prause, Christopher Alvin. "External detection and measurement of inhaled radionuclides using thermoluminescent dosimeters." Texas A&M University, 2006. http://hdl.handle.net/1969.1/5021.

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Many radiation detection programs use bio-assays, whole-body counters, or air sampling to estimate internal doses. This study examines the possibility of using a common external thermoluminescent dosimeter (TLD) badge as a device for detecting inhaled radionuclides through radiation those radionuclides emit which escape the body. The three common radionuclides chosen for modeling due to their varying decay modes and use or production in the nuclear industry were Cs-137, U-238, and Sr-90. These three radionuclides were modeled for biological and radiological removal in the dynamic systems modeling program of STELLA II and modeled for TLD dose per organ in the geometry and radiation simulation program of MCNP. The results show that none of the nuclides in the study can be detected at air concentrations below regulatory limits for acute inhalation exposures. To achieve a detectable dose from an 8-hour work exposure, with a 90-day wait until the TLD is read, the airborne concentrations for the inhalation classes that produced the most dose per Bq would be 37.9 kBq/m3, 146 MBq/m3, and 1.67 MBq/m3 for Cs-137, U-238, and Sr-90, respectively.
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PAIVA, FABIO de. "Estudo das respostas de TLD tipo LiF para caracterização de campos mistos." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26930.

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Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2016-12-21T15:11:54Z No. of bitstreams: 0
Made available in DSpace on 2016-12-21T15:11:54Z (GMT). No. of bitstreams: 0
A Terapia por Captura de Nêutrons, NCT (Neutron Capture Therapy) é uma técnica radioterápica em que a energia útil do tratamento vem da energia liberada em uma reação nuclear e não do feixe primário, como comumente utilizado em outros procedimentos radioterápicos. O Boro, por constituir-se em um elemento de baixa toxicidade e por apresentar um isótopo (10B) com alta seção de choque para a reação 10B(n,α)7Li tem sido o elemento mais utilizado nas pesquisas que visam o aprimoramento e a promoção desta técnica, derivando daí o termo BNCT (Boron Neutron Capture Therapy). Para fins de pesquisa em BNCT foi construída ao longo de um dos extratores de feixes (BH - Beam Hole) do reator IEA-R1 uma instalação, onde filtros e moderadores são posicionados entre o núcleo do reator e a posição de irradiação com o objetivo de modular o feixe de irradiação, otimizando a componente útil do feixe, os nêutrons térmicos, e reduzindo os contaminantes, raios gama e nêutrons em outras faixas energéticas. Tem-se realizado estudos visando a implementação de melhorias na caracterização e otimização do feixe obtido nesse arranjo instalado no BH-3. Atualmente a monitoração dos nêutrons é feita através de folhas de ativação, e a componente gama pelo TLD-400. Uma nova metodologia de monitoração tem sido estudada pelo grupo. A referida técnica consiste em usar TLDs de tipos diferentes, ou seja, que possuam sensibilidades distintas aos nêutrons térmicos, em virtude de diferenças na concentração dos isótopos de Lítio. No estudo dessa nova metodologia têm sido usados os TLD-600 e TLD-700. Este trabalho propõe uma metodologia usando o par TLD-100 e TLD-700. Inicialmente foi verificada a reprodutibilidade das respostas dos TLDs 700, 400 e 100 frente a campos gama puro e campos mistos, gama e nêutron. Campos estes obtidos em arranjos usando fontes de 60Co e 241AmBe. A partir de simulações usando o VI MCNP5 foi projetado e construído um Irradiador de campos mistos, que permitiu expor os dosímetros em campos mistos com diferentes espectros energéticos. As condições criadas no irradiador permitiram verificar, como a resposta do TLD é modificada pelas mudanças no espectro energético de um campo misto gama e nêutrons de baixo fluxo. O irradiador de campo misto permitiu condições para estabelecer uma relação entre o formato da curva termoluminescente e a composição do campo misto. A relação estabelecida relaciona o fluxo relativo e a razão entre a resposta das duas regiões de interesse dos TLDs 700 e 100. A partir de campos mistos com condições controladas, esse trabalho permitiu verificar a viabilidade do uso do par de TLD-100 e TLD-700 para monitoração de nêutrons térmicos na instalação de BNCT.
Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP
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Books on the topic "TLD"

1

Nemiro, E. A. Regionalʹnai͡a︡ sistema individualʹnogo dozimetricheskogo kontroli͡a︡ na osnove TLD. Moskva: Ėnergoatomizdat, 1987.

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Čalovski, Todor. Tlo. Skopje: Galikul, 2008.

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Marshall, Edward Athelstan. Ted. [United States]: Privately published, 2007.

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Bee, Gaynor. TLC. Cambridge: Cambridge University Press, 1991.

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Jacob, Lucinda. Lily and Ted =: Lily agus Ted. Dublin: Poolbeg for Children, 1997.

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Ted Hughes. New York: Routledge, 2008.

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Beaty, Andrea. Dr. Ted. New York: Atheneum Books for Young Readers, 2008.

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Ted Hughes. Milton Keynes, England: Open University Press, 1987.

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Beaty, Andrea. Dr. Ted. New York: Atheneum Books for Young Readers, 2008.

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Beaty, Andrea. Firefighter Ted. New York: Scholastic, Inc., 2010.

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Book chapters on the topic "TLD"

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Adamo, Francesco, Pierluigi Carcagnì, Pier Luigi Mazzeo, Cosimo Distante, and Paolo Spagnolo. "TLD and Struck: A Feature Descriptors Comparative Study." In Activity Monitoring by Multiple Distributed Sensing, 52–63. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-13323-2_5.

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Zhang, Chongyang, Kaichang Di, Zhaoqin Liu, and Wenhui Wan. "TLD Based Visual Target Tracking for Planetary Rover Exploration." In Communications in Computer and Information Science, 29–35. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-37149-3_4.

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Kinhikar, Rajesh A., Chandrshekhar M. Tambe, Dipak S. Dhote, and Deepak D. Deshpande. "In vivo dosimetry using MOSFET and TLD for Tomotherapy." In IFMBE Proceedings, 114–16. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03474-9_33.

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Colucci, Francesca, Marco Claudio De Simone, and Domenico Guida. "TLD Design and Development for Vibration Mitigation in Structures." In New Technologies, Development and Application II, 59–72. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-18072-0_7.

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Xu, Pengfei, Yu Long, Dongmei Zheng, and Ruyi Liu. "The Face-Tracking of Sichuan Golden Monkeys via S-TLD." In Communications in Computer and Information Science, 85–91. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-2260-9_11.

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Iemura, H. "Principles of TMD and TLD — Basic Principles and Design Procedure." In Passive and Active Structural Vibration Control in Civil Engineering, 241–53. Vienna: Springer Vienna, 1994. http://dx.doi.org/10.1007/978-3-7091-3012-4_11.

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Zhou, Chenggang, Qiankun Dong, Wenjing Ma, Guoping Long, and Tao Li. "PE-TLD: Parallel Extended Tracking-Learning-Detection for Multi-target Tracking." In Algorithms and Architectures for Parallel Processing, 665–77. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-27122-4_46.

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Yang, Tao, Cindy Cappelle, Yassine Ruichek, and Mohammed El Bagdouri. "Object Tracking Based on Modified TLD Framework Using Compressive Sensing Features." In Advances in Computational Intelligence, 459–70. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-62434-1_37.

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Vissers, Thomas, Jan Spooren, Pieter Agten, Dirk Jumpertz, Peter Janssen, Marc Van Wesemael, Frank Piessens, Wouter Joosen, and Lieven Desmet. "Exploring the Ecosystem of Malicious Domain Registrations in the .eu TLD." In Research in Attacks, Intrusions, and Defenses, 472–93. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66332-6_21.

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Robberechts, Pieter, Maarten Bosteels, Jesse Davis, and Wannes Meert. "Query Log Analysis: Detecting Anomalies in DNS Traffic at a TLD Resolver." In Communications in Computer and Information Science, 55–67. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-14880-5_5.

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Conference papers on the topic "TLD"

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Ormond, E. C., D. R. Bozman, S. R. Cordova, D. R. Mitchell, B. V. Oliver, D. E. Good, D. J. Henderson, et al. "Lithium Fluoride TLD dose quality." In 2013 IEEE Pulsed Power and Plasma Science Conference (PPPS 2013). IEEE, 2013. http://dx.doi.org/10.1109/ppc.2013.6627700.

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Ormond, Eugene C., Dan R. Bozman, Steve R. Cordova, David R. Mitchell, Bryan V. Oliver, Douglas E. Good, David J. Henderson, et al. "Lithium fluoride TLD dose quality." In 2013 IEEE 40th International Conference on Plasma Sciences (ICOPS). IEEE, 2013. http://dx.doi.org/10.1109/plasma.2013.6635201.

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Xu, Tao, Chaobing Huang, Qing He, Guan Guan, and Yanghong Zhang. "An improved TLD target tracking algorithm." In 2016 IEEE International Conference on Information and Automation (ICIA). IEEE, 2016. http://dx.doi.org/10.1109/icinfa.2016.7832157.

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Sharma, Swati Naresh, Ajitkumar Khachane, and Dilip Motwani. "Multi-object tracking using TLD framework." In 2016 IEEE International Conference on Recent Trends in Electronics, Information & Communication Technology (RTEICT). IEEE, 2016. http://dx.doi.org/10.1109/rteict.2016.7808137.

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Chen, Lingling, Songhao Zhu, Xiangxiang Li, and Jiawei Liu. "Target tracking via improved TLD algorithm." In 2015 27th Chinese Control and Decision Conference (CCDC). IEEE, 2015. http://dx.doi.org/10.1109/ccdc.2015.7161873.

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Li, Ting, Wen-jie Zhao, Shuai Yang, and Cheng Li. "An improved TLD object tracking algorithm." In Eighth International Conference on Digital Image Processing (ICDIP 2016), edited by Charles M. Falco and Xudong Jiang. SPIE, 2016. http://dx.doi.org/10.1117/12.2244919.

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Wei, Tong, Wei-Wei Tu, and Yu-Feng Li. "Learning for Tail Label Data: A Label-Specific Feature Approach." In Twenty-Eighth International Joint Conference on Artificial Intelligence {IJCAI-19}. California: International Joint Conferences on Artificial Intelligence Organization, 2019. http://dx.doi.org/10.24963/ijcai.2019/533.

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Tail label data (TLD) is prevalent in real-world tasks, and large-scale multi-label learning (LMLL) is its major learning scheme. Previous LMLL studies typically need to additionally take into account extensive head label data (HLD), and thus fail to guide the learning behavior of TLD. In many applications such as recommender systems, however, the prediction of tail label is very necessary, since it provides very important supplementary information. We call this kind of problem as \emph{tail label learning}. In this paper, we propose a novel method for the tail label learning problem. Based on the observation that the raw feature representation in LMLL data usually benefits HLD, which may not be suitable for TLD, we construct effective and rich label-specific features through exploring labeled data distribution and leveraging label correlations. Specifically, we employ clustering analysis to explore discriminative features for each tail label replacing the original high-dimensional and sparse features. In addition, due to the scarcity of positive examples of TLD, we encode knowledge from HLD by exploiting label correlations to enhance the label-specific features. Experimental results verify the superiority of the proposed method in terms of performance on TLD.
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Shi, Jiawei, Xianmei Wang, and Xiaohuer. "Human tracking using TLD with Automatic Initiation." In the 2018 2nd International Conference. New York, New York, USA: ACM Press, 2018. http://dx.doi.org/10.1145/3242840.3242855.

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Yuchi, Xuebiao, Xin Wang, Xiaodong Li, and Baoping Yan. "DNS Measurements at the .CN TLD Servers." In 2009 Sixth International Conference on Fuzzy Systems and Knowledge Discovery. IEEE, 2009. http://dx.doi.org/10.1109/fskd.2009.12.

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Abé, Masato, Yozo Fujino, and Yasuyuki Sano. "Vibration Control by Active Tuned Liquid Damper Using Magnetic Fluid." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/vib-3825.

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Abstract To enhance the performance of tuned liquid dampers (TLD), active TLD which contains magnetic fluid activated by electromagnet is proposed. At the first half of the paper, characteristics of sloshing motion of magnetic fluid subject to dynamic magnetic field is experimentally studied. Sloshing motion and base shear force are found to be effectively controlled by magnetic force. Then, a rule-based control law is constructed and applied to the vibration control of a model building. Vibration suppression effect of passive TLD is improved by applying appropriately scheduled dynamic magnetic field.
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Reports on the topic "TLD"

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Casson, W. H., and G. T. Mei. Design of an advanced TLD-based fixed nuclear accident dosimeter. Office of Scientific and Technical Information (OSTI), August 1993. http://dx.doi.org/10.2172/10178185.

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VISTA RESEARCH CORP TUCSON AZ. Ada Compiler Validation Summary Report: Certificate Number: 940305W1. 11335 TLD Systems, Ltd. TLD Comanche VAX/1960 Ada Compiler System, Version 4.1.1 VAX Cluster under VMS 5.5 => Tronix JIAWG Execution Vehicle (i960MX) under TLD Real Time Executive, Version 4.1.1. Fort Belvoir, VA: Defense Technical Information Center, March 1994. http://dx.doi.org/10.21236/ada278080.

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Struckmeyer, R. NRC TLD Direct Radiation Monitoring Network. Progress report, October--December 1996. Office of Scientific and Technical Information (OSTI), March 1997. http://dx.doi.org/10.2172/459891.

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Klensin, J. National and Local Characters for DNS Top Level Domain (TLD) Names. RFC Editor, October 2005. http://dx.doi.org/10.17487/rfc4185.

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Brackenbush, L. W., W. V. Baumgartner, and J. J. Fix. Response of TLD-albedo and nuclear track dosimeters exposed to plutonium sources. Office of Scientific and Technical Information (OSTI), December 1991. http://dx.doi.org/10.2172/5926091.

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Struckmeyer, R. NRC TLD direct radiation monitoring network. Progress report, April 1994--June 1994. Office of Scientific and Technical Information (OSTI), August 1994. http://dx.doi.org/10.2172/10182255.

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Struckmeyer, R. NRC TLD direct radiation monitoring network. Progress report, October 1997--December 1997. Office of Scientific and Technical Information (OSTI), March 1998. http://dx.doi.org/10.2172/585006.

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Brackenbush, L. W., W. V. Baumgartner, and J. J. Fix. Response of TLD-albedo and nuclear track dosimeters exposed to plutonium sources. Office of Scientific and Technical Information (OSTI), December 1991. http://dx.doi.org/10.2172/10114950.

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Jones, S. C. Measurement of residual radioactive surface contamination by 2-D laser heated TLD. Office of Scientific and Technical Information (OSTI), June 1997. http://dx.doi.org/10.2172/490165.

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Struckmeyer, R., and N. NcNamara. NRC TLD (thermoluminescent dosimeter) Direct Radiation Monitoring Network: Progress report, October--December 1988. Office of Scientific and Technical Information (OSTI), April 1989. http://dx.doi.org/10.2172/6124565.

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