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Journal articles on the topic 'TLD'

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Published: 4 June 2021

Last updated: 13 February 2022

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1

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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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Kaloop, Mosbeh R., Jong Wan Hu, and Yasser Bigdeli. "The Performance of Structure-Controller Coupled Systems Analysis Using Probabilistic Evaluation and Identification Model Approach." Shock and Vibration 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/5482307.

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This study evaluates the performance of passively controlled steel frame building under dynamic loads using time series analysis. A novel application is utilized for the time and frequency domains evaluation to analyze the behavior of controlling systems. In addition, the autoregressive moving average (ARMA) neural networks are employed to identify the performance of the controller system. Three passive vibration control devices are utilized in this study, namely, tuned mass damper (TMD), tuned liquid damper (TLD), and tuned liquid column damper (TLCD). The results show that the TMD control system is a more reliable controller than TLD and TLCD systems in terms of vibration mitigation. The probabilistic evaluation and identification model showed that the probability analysis and ARMA neural network model are suitable to evaluate and predict the response of coupled building-controller systems.

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Guberina, Nika, Saravanabavaan Suntharalingam, Kai Naßenstein, Michael Forsting, Jens Theysohn, Axel Wetter, and Adrian Ringelstein. "Verification of organ doses calculated by a dose monitoring software tool based on Monte Carlo Simulation in thoracic CT protocols." Acta Radiologica 59, no. 3 (June 15, 2017): 322–26. http://dx.doi.org/10.1177/0284185117716199.

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Background The importance of monitoring of the radiation dose received by the human body during computed tomography (CT) examinations is not negligible. Several dose-monitoring software tools emerged in order to monitor and control dose distribution during CT examinations. Some software tools incorporate Monte Carlo Simulation (MCS) and allow calculation of effective dose and organ dose apart from standard dose descriptors. Purpose To verify the results of a dose-monitoring software tool based on MCS in assessment of effective and organ doses in thoracic CT protocols. Material and Methods Phantom measurements were performed with thermoluminescent dosimeters (TLD LiF:Mg,Ti) using two different thoracic CT protocols of the clinical routine: (I) standard CT thorax (CTT); and (II) CTT with high-pitch mode, P = 3.2. Radiation doses estimated with MCS and measured with TLDs were compared. Results Inter-modality comparison showed an excellent correlation between MCS-simulated and TLD-measured doses ((I) after localizer correction r = 0.81; (II) r = 0.87). The following effective and organ doses were determined: (I) (a) effective dose = MCS 1.2 mSv, TLD 1.3 mSv; (b) thyroid gland = MCS 2.8 mGy, TLD 2.5 mGy; (c) thymus = MCS 3.1 mGy, TLD 2.5 mGy; (d) bone marrow = MCS 0.8 mGy, TLD 0.9 mGy; (e) breast = MCS 2.5 mGy, TLD 2.2 mGy; (f) lung = MCS 2.8 mGy, TLD 2.7 mGy; (II) (a) effective dose = MCS 0.6 mSv, TLD 0.7 mSv; (b) thyroid gland = MCS 1.4 mGy, TLD 1.8 mGy; (c) thymus = MCS 1.4 mGy, TLD 1.8 mGy; (d) bone marrow = MCS 0.4 mGy, TLD 0.5 mGy; (e) breast = MCS 1.1 mGy, TLD 1.1 mGy; (f) lung = MCS 1.2 mGy, TLD 1.3 mGy. Conclusion Overall, in thoracic CT protocols, organ doses simulated by the dose-monitoring software tool were coherent to those measured by TLDs. Despite some challenges, the dose-monitoring software was capable of an accurate dose calculation.

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Freire, L., A. Calado, J. V. Cardoso, L. M. Santos, and J. G. Alves. "Comparison of LiF (TLD-100 and TLD-100H) detectors for extremity monitoring." Radiation Measurements 43, no. 2-6 (February 2008): 646–50. http://dx.doi.org/10.1016/j.radmeas.2007.12.013.

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14

Zhang, Hai Feng, and Xiao Qun Pan. "Research on Target Tracking Based on TLD Algorithm." Applied Mechanics and Materials 389 (August 2013): 819–22. http://dx.doi.org/10.4028/www.scientific.net/amm.389.819.

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This paper introduces the theoretical basis and the framework of improved algorithm of TLD(Tracking-Learning-Detection, TLD) algorithm. Difference between the improved TLD algorithm and traditional algorithm tracking were compared by experiments in the paper. When the improved algorithm has joined the online learning mechanism, it improves the effects of target tracking. Trough the experiments between the improved TLD algorithm and traditional algorithm, it turns out that TLD algorithm has good stability and robustness in target tracking.

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Jarnet, D., B. Denizot, F. Hindré, M. C. Venier-Julienne, A. Lisbona, M. Bardiès, and P. Jallet. "New thermoluminescent dosimeters (TLD): optimization and characterization of TLD threads sterilizable by autoclave." Physics in Medicine and Biology 49, no. 9 (April 2, 2004): 1803–15. http://dx.doi.org/10.1088/0031-9155/49/9/015.

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Abdulsahib Rasool, Luay. "Linearity Test for Harshaw TLD (Type: TLD-100H) Base on Individual Calibration Method." Nuclear Science 4, no. 1 (2019): 1. http://dx.doi.org/10.11648/j.ns.20190401.11.

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Wood, J. J., and W. P. M. Mayles. "Factors affecting the precision of TLD dose measurements using an automatic TLD reader." Physics in Medicine and Biology 40, no. 2 (February 1, 1995): 309–13. http://dx.doi.org/10.1088/0031-9155/40/2/009.

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18

Oster, L., I. Eliyahu, Y. S. Horowitz, G. Reshes, A. Shapiro, and G. Garty. "DEMONSTRATION OF THE POTENTIAL AND DIFFICULTIES OF COMBINED TL AND OSL MEASUREMENTS OF TLD-600 AND TLD-700 FOR THE DETERMINATION OF THE DOSE COMPONENTS IN COMPLEX NEUTRON-GAMMA RADIATION FIELDS." Radiation Protection Dosimetry 188, no. 3 (January 16, 2020): 383–88. http://dx.doi.org/10.1093/rpd/ncz297.

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Abstract The results reported herein demonstrate the potential application of combined optically stimulated luminescence/thermoluminescent (OSL/TL) measurements in neutron-gamma discrimination dosimetry. The advantages of OSL/TL are two-fold: (i) The OSL and TL readout can be carried out on the same sample and (ii) the greater efficiency of OSL to high ionization density radiation due to F 2 and F3 excitation. The gamma/electron calibration coefficients for LiF:Mg, Ti (TLD-600 and TLD-700) were measured using a 90Sr/90Y source calibrated at the SARAF-SSDL nuclear facility. The estimation of the neutron calibration coefficients was carried out by irradiation with broad-spectrum beam of fast neutrons with median energy 5 MeV at the Radiological Research Accelerator Facility (RARAF) of Columbia University. Naturally cooled samples of TLD-600 and TLD-700 were dosed to levels of 29.8 Gy neutrons and 6.1 Gy gammas in air and KERMA calculations employed to transfer the levels of dose to6,7LiF. A figure of merit for fast-neutron/gamma ray discrimination was determined at 10.6 for TLD-700 in the current measurements. The use of combined TLD-600/TLD-700 allowed, as well, the determination of a considerable and somewhat unexpected thermal neutron component of 116 Gy in TLD-600.

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Yeni, Nisaul Chaira, Dian Milvita, and Heru Prasetio. "Kalibrasi TLD-100 di Udara Menggunakan Radiasi Sinar-X Pada Rentang Radiation Qualities in Radiodiagnostik (RQR)." JURNAL ILMU FISIKA | UNIVERSITAS ANDALAS 11, no. 2 (September 23, 2019): 81–87. http://dx.doi.org/10.25077/jif.11.2.81-87.2019.

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Telah dilakukan kalibrasi TLD-100 di udara menggunakan radiasi sinar-X pada rentang Radiation Qualities in Radiodiagnostik (RQR). Kalibrasi dilakukan untuk mengetahui koefisien kalibrasi TLD di udara, faktor koreksi kualitas radiasi dan pengaruh variasi dosis radiasi terhadap koefisien kalibrasi. Penelitian menggunakan pesawat sinar-X konvensional sebagai sumber radiasi, detektor TLD-100 sebagai detektor yang akan dikalibrasi dan detektor unfors-X2 sebagai detektor standar. Dosis radiasi yang digunakan yaitu (0,2; 0,3; 0,5; 0,7) mGy dengan variasi tegangan (50, 60, 70, 80, 90, 100) kV. Hasil penelitian menunjukkan nilai koefisien kalibrasi TLD bergantung kepada kualitas radiasi sehingga TLD harus dikalibrasi pada setiap tegangan. Nilai faktor koreksi kualitas radiasi berada pada rentang 0,825 ± 0,097 sampai 1,039 ± 0,084 yang berarti kemampuan detektor merespon radiasi berbeda-beda seiring perubahan kualitas radiasi. Nilai koefisien kalibrasi meningkat seiring bertambahnya nilai dosis radiasi.Kata kunci: koefisien kalibrasi, faktor koreksi, TLD

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Cheon, J., F. Hong, T. Hidaka, H. Koshikawa, and H. Tsuno. "Microbial population dynamics in a thermophilic methane digester fed with garbage." Water Science and Technology 55, no. 10 (May 1, 2007): 175–82. http://dx.doi.org/10.2166/wst.2007.320.

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The diversity of microbial communities in three full-scale thermophilic anaerobic digesters which treated garbage, sewage sludge and livestock wastes (hereafter called TGD, TSD and TLD, respectively) was investigated using 16S rDNA clone libraries in triplicate. The population dynamics of TGD were also studied. The purposes were to show the microbial diversity in each reactor and to suggest which key microbes in a thermophilic methane digester fed with garbage, including a check of reproducibility and the suggestion of an error range in this molecular biology method. 736 clones were identified, and the maximum error was estimated to be around ±10% for the same OTU (operational taxonomic unit) and for most detected OTUs. The most frequently detected OTU shows a close relationship to Uncultured bacterium clone MBA08,Unidentified bacterium clone TUG22 and Uncultured archaeal symbiont PA204 in TGD, TSD and TLD, respectively. The microbial population dynamics in TGD were studied over a period of 90 days, and the occupying ratios of Bacillus infernus and Methanothermobacter wolfeii were shown to change with the change in VFA concentration. From the dynamic change and characteristics of the microbes, it is concluded that Bacillus infernus and Methanothermobacter wolfeii played an important role and were recommended as key microbes in TGD.

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Kron, Tomas, Peta Lonski, and Eduardo G. Yukihara. "THERMOLUMINESCENCE DOSIMETRY (TLD) IN MEDICINE: FIVE ‘W’S AND ONE HOW." Radiation Protection Dosimetry 192, no. 2 (November 2020): 139–51. http://dx.doi.org/10.1093/rpd/ncaa212.

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Abstract Thermoluminescence dosimetry (TLD) has a long history of applications in medicine. However, despite its versatility and sensitivity its use is anecdotally diminishing, at least in part due to the complexity and work intensity of a quality TLD service. The present paper explores the role of TLD in medicine using a common inquiry methodology (5W1H) which systematically asks ‘Who, What, When, Where, Why and How’ to identify what role TLD could and should play in medical applications.

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Garcia-Caparros, Pedro, Rosa Chica, Eva Almansa, Antonio Rull, Lara Rivas, Antonio García-Buendía, Francisco Barbero, and María Lao. "Comparisons of Different Lighting Systems for Horticultural Seedling Production Aimed at Energy Saving." Sustainability 10, no. 9 (September 19, 2018): 3351. http://dx.doi.org/10.3390/su10093351.

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Nowadays, the evaluation of sustainability is an important aspect in the study of agricultural systems and the number of projects and methods for impact assessment of food production systems is increasing. In this work, we initially carried out a survey to know the status of the artificial lighting establishment in horticultural seedling nurseries in southern Spain. Taking into account the data obtained in the survey, we conducted an experiment with different types of fluorescent lamps (TLD-18, CF, TL5, TLD-56), light-emitting diodes (LEDs) and their combinations along with the novelty white LEDs lamps and XTRASUN LEDs to evaluate their technical parameters and spectral light qualities. In addition, the effectiveness of light irradiance (ELIplant) and the use of irradiance (UI) by cucumber and tomato seedling plants were estimated considering their light absorbance capacity previously analyzed. The results showed that TLD-18 lamps and their combinations, CF and XTRASUN LEDs, had a limited value of energy efficiency (VEEI) ≤ 2. The lamps essayed with the lowest total irradiance were LEDs (B, R, V, W) and the ones with the highest values were TLD58-6 lamps. The effectiveness of light irradiance (ELIplant) and the UI were slightly higher in the case of cucumber than that of the tomato for all essayed lamps. Considering the effectiveness of the light irradiance (ELIplant), TL5-6 lamps showed the highest values. On the other hand, considering the use of irradiance, XTRASUN LEDs on the mode of vegetative growth (VG) showed the highest values.

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Vorland, Colby, Michelle Bohan Brown, Michelle Cardel, and Andrew Brown. "Traffic Light Diets Per Se Have Limited Evidence for Effectiveness on Childhood Obesity: A Review." Current Developments in Nutrition 4, Supplement_2 (May 29, 2020): 1697. http://dx.doi.org/10.1093/cdn/nzaa063_095.

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Abstract Objectives The “traffic light diet” (TLD; or “stop light diet” among other names) categorizes foods into ‘green’, ‘yellow’, or ‘red’ groups to consume without restriction, in moderation, or minimally, respectively. It is often a component of childhood interventions targeting weight-related outcomes. The Academy of Nutrition and Dietetics Evidence Analysis Library assigned TLDs Grade I evidence in 2006 for pediatric weight management, but none of the studies reviewed tested the TLD in isolation. We conducted a review of the effect of TLDs on obesity-related outcomes in children and definitions among different implementations of TLDs. Methods We searched PubMed up to September 2019 for interventions using the TLD with obesity-related anthropometric outcomes. Studies were screened in duplicate, and treatment characteristics extracted. Additional studies were identified by screening references. Using a convenience sample of texts from the original TLD creators, Indiana University vending, a new pediatric weight loss app, and an online resource, we assessed how definitions of TLDs compare. Results Our search identified 386 abstracts, 5 of which were interventions that included the TLD and weight-related outcomes. Three of these were randomized controlled trials, and none studied the TLD in isolation outside of multicomponent interventions. We then focused on 4 foundational TLD articles that were repeatedly cited. One of these isolated the TLD from the multicomponent intervention but found no statistical effect of the diet or interaction of diet with other factors for weight-related outcomes. In the sample of TLD implementations, substantial differences were apparent in how foods were classified among green, yellow, and red groups, such as avocados, nuts, figs/fig cookies, and peanut butter. Conclusions There is insufficient evidence supporting TLDs as a unique, isolatable factor in improving weight-related outcomes in children. This does not necessarily mean that TLDs are ineffective, as they have been incorporated into successful interventions. A standardization of TLD definitions (consistently categorizing foods and whether the term ‘TLD’ is meant to include other components of an intensive lifestyle intervention) is needed to make comparisons of effectiveness going forward. Funding Sources The authors received no funding for this specific work.

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Gfirtner, H., G. Schenk, and K. Schock. "Ein PC-gestütztes TLD-Auswertesystem." Zeitschrift für Medizinische Physik 2, no. 4 (1992): 236–45. http://dx.doi.org/10.1016/s0939-3889(15)70648-3.

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K. Perkins, D., and P. J. Gilvin. "Extremity TLD High Dose Response." Radiation Protection Dosimetry 101, no. 1 (August 1, 2002): 289–92. http://dx.doi.org/10.1093/oxfordjournals.rpd.a005988.

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Ap thy, I., S. Deme, and I. Feh r. "Microprocessor Controlled Portable TLD System." Radiation Protection Dosimetry 66, no. 1 (July 1, 1996): 441–44. http://dx.doi.org/10.1093/oxfordjournals.rpd.a031772.

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Wu, Tunhua, Ping Wang, Shengnan Yin, and Yezhi Lin. "A New Human Eye Tracking Algorithm of Optimized TLD Based on Improved Mean-Shift." International Journal of Pattern Recognition and Artificial Intelligence 31, no. 03 (February 2017): 1755007. http://dx.doi.org/10.1142/s0218001417550072.

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In this paper, an improved Mean-shift algorithm was integrated with standard tracking–learning–detection (TLD) model tracker for improving the tracking effects of standard TLD model and enhancing the anti-occlusion capability and the recognition capability of similar objectives. The target region obtained by the improved Mean-shift algorithm and the target region obtained by the TLD model tracker are integrated to achieve favorable tracking effects. Then the optimized TLD tracking system was applied to human eye tracking. In the tests, the model can be self-adopted to partial occlusion, such as eye-glasses, closed eyes and hand occlusion. And the roll angle can approach 90[Formula: see text], raw angle can approach 45[Formula: see text] and pitch angle can approach 60[Formula: see text]. In addition, the model never mistakenly transfers the tracking region to another eye (similar target on the same face) in longtime tracking. Experimental results indicate that: (1) the optimized TLD model shows sound tracking stability even when targets are partially occluded or rotated; (2) tracking speed and accuracy are superior to those of the standard TLD and some mainstream tracking methods. In summary, the optimized TLD model show higher robustness, stability and better responding to complex eye tracking requirement.

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Pandit, Amiya Ranjan, and Kishore Chandra Biswal. "Seismic Control of Structures Using Sloped Bottom Tuned Liquid Damper." International Journal of Structural Stability and Dynamics 19, no. 09 (August 28, 2019): 1950096. http://dx.doi.org/10.1142/s0219455419500962.

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Tuned liquid damper (TLD) as an economical passive damper has gained importance because of its efficiency in suppressing the undesirable motion of a structure due to devastating earthquakes when it is rigidly attached to the structure. This phenomenon has been studied previously, but mostly limited to rectangular- or cylindrical-shaped TLD. The present study is aimed at determining the potential of the sloped bottom tuned liquid damper to suppress the unwanted vibration of the structure subjected to earthquake ground motion. Three different earthquake ground motions characterized by low-, intermediate- and high-frequency contents are selected for the dynamic analysis of the TLD–structure coupled system. A parametric study on the sloped bottom TLD and its interaction with the sustaining structural system is conducted. The structural equations, which are coupled with fluid equations, are solved by the Newmark-[Formula: see text] method with average acceleration, while the fluid equations are solved using velocity potential-based finite element method. The liquid domain in the TLD is comprised of a combination of three-node triangular and four-node quadrilateral elements. The result shows the reduction in structure response is significant with less amount of water in sloped bottom TLD rather than rectangular TLD.

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Miljanić, S., K. Krpan, and S. Blagus. "TL and PTTL of TLD-100 and TLD-700 after irradiation with 14.5MeV neutrons." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 574, no. 3 (May 2007): 510–17. http://dx.doi.org/10.1016/j.nima.2007.02.078.

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Sathiyaraj, Rajendran, and Ayyasamy Bharathi. "AN EFFICIENT INTELLIGENT TRAFFIC LIGHT CONTROL AND DEVIATION SYSTEM FOR TRAFFIC CONGESTION AVOIDANCE USING MULTI-AGENT SYSTEM." Transport 35, no. 3 (September 26, 2019): 327–35. http://dx.doi.org/10.3846/transport.2019.11115.

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An efficient and intelligent road traffic management system is the corner stone for every smart cities. Vehicular Ad-hoc NETworks (VANETs) applies the principles of mobile ad hoc networks in a wireless network for Vehicle-to-vehicle data exchange communication. VANETs supports in providing an efficient Intelligent Transportation System (ITS) for smart cities. Road traffic congestion is a most common problem faced by many of the metropolitan cities all over the world. Traffic on the road networks are widely increasing at a larger rate and the current traffic management systems is unable to tackle this impediment. In this paper, we propose an Efficient Intelligent Traffic Light Control and Deviation (EITLCD) system, which is based on multi-agent system. This proposed system overcomes the difficulties of the existing traffic management systems and avoids the traffic congestion problem compare to the prior scenario. The proposed system is composed of two systems: Traffic Light Controller (TLC) system and Traffic Light Deviation (TLD) system. The TLC system uses three agents to supervise and control the traffic parameters. TLD system deviate the vehicles before entering into congested road. Traffic and travel related information from several sensors are collected through a VANET environment to be processed by the proposed technique. The proposed structure comprises of TLC system and makes use of vehicle measurement, which is feed as input to the TLD system in a wireless network. For route pattern identification, any traditional city map can be converted to planar graph using Euler’s path approach. The proposed system is validated using Nagel–Schreckenberg model and the performance of the proposed system is proved to be better than the existing systems in terms of its time, cost, expense, maintenance and performance.

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Nazaroh, Nazaroh. "KAJIAN ANALISIS KETIDAKPASTIAN TLD POSTAL IAEA/WHO SEBAGAI STANDAR PROGRAM AUDIT DOSIS." Jurnal Standardisasi 11, no. 2 (July 28, 2009): 73. http://dx.doi.org/10.31153/js.v11i2.634.

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<p>The International Atomic Energy Agency (IAEA) and World Health Organization (WHO) operate the IAEA/WHO TLD postal dose audit programme using thermoluminescence dosimeter (TLDs) for Secondary Standard<br />Dosimetry Laboratory (SSDL) and user every year. As National Reference Laboratory in the field of radiation metrology, PTKMR – BATAN always participates in the postal dose audit programme on therapy level for 60Co<br />beam. On the postal dose audit programme, the uncertainties in the dose determination from TLD measurements have been evaluated by IAEA, which is comprises of uncertainties in the calibration coefficient of the TLD system<br />and uncertainties in factors correcting for dose response non linearity, fading of TL signal, energy response, and influence of TLD holder. The individual uncertainties then have been combined to estimate the total uncertaintiy in<br />the dose evaluated from TLD measurements. The combined relative standard uncertainty in the dose determined from TLD measurements has been estimated to be 1.2% for irradiation with 60Co gamma rays and 1.6% for<br />irradiation with high-energy X-rays. Results from irradiations by Bureau Internationale des Poids et Mesures (BIPM), Primary Standard Dosimetry Laboratory (PSDL), and SSDL compare favourably with the estimated<br />uncertainties, whereas TLD results of radiotherapy centres show higher standard deviations than those derived theoretically. This paper presented the result of TLD postal dose audit for 60Co beam owned by PTKMR-BATAN<br />in the year of 2006-2008.</p>

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Ramirez, Chuck, Layla Roy, and Gary Foster. "Dual Vector Biosensor Catheter Tip Positioning System: A 3-Year Retrospective Analysis." Journal of the Association for Vascular Access 20, no. 3 (September 1, 2015): 151–56. http://dx.doi.org/10.1016/j.java.2015.05.002.

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Abstract Background: Vascular access is continually evolving in areas of clinical practice and new technology. Our vascular access team (VAT), like many others, has moved away from chest radiograph after peripherally inserted central catheter (PICC) insertion to a catheter tip positioning system or tip locating device (TLD). Our VAT collected data over a 3-year period to assess any changes that resulted from the TLD implementation. The intent was to drill down into the PICC data over the 3 years and quantify any changes gained or lost from the previous practice of post-PICC insertion chest radiograph. Methods: A share point database system that was already in place was updated to also incorporate key elements of the TLD. Initial time studies were also collected to validate average cycle time. The VAT was educated and validated on the TLD technology before implementation. Key stakeholders (ie, members of the radiology department, administration, hospitalist physicians, and the medical director) were communicated with and signed off on the project. Results: Retrospective analysis from 2012–2014 revealed that 1079 PICCs had been inserted. Of those, 781 PICCs were placed successfully with the TLD with an accompanying reduction of 781 chest radiographs. Precycle time averaged 114 minutes compared with post-TLD, which averaged 37 minutes. No changes in deep vein thrombosis rate were identified. Conclusions: Implementing the dual vector biosensor TLD improved our insertion cycle time by a mean of 77 minutes. The new cycle time provided increased procedure capacity for the VAT. Chest radiograph reduction of 72% was also realized with the TLD over the 3-year period.

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Xu, Lin Bao, Shu Ming Tang, Jin Feng Yang, and Yan Min Dong. "Robust Autonomous Car-Like Robot Tracking Based on Tracking-Learning-Detection." Applied Mechanics and Materials 687-691 (November 2014): 564–71. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.564.

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This paper proposes a robust tracking algorithm for an autonomous car-like robot, and this algorithm is based on the Tracking-Learning-Detection (TLD). In this paper, the TLD method is extended to track the autonomous car-like robot for the first time. In order to improve accuracy and robustness of the proposed algorithm, a method of symmetry detection of autonomous car-like robot rear is integrated into the TLD. Moreover, the Median-Flow tracker in TLD is improved with a pyramid-based optical flow tracking method to capture fast moving objects. Extensive experiments and comparisons show the robustness of the proposed method.

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Sun, Jie, Gong Yu Li, Lang Liu, and Qing Bo Liu. "The TLCD U-Tube Liquid Sloshing Finite Element Modal Analysis." Advanced Materials Research 694-697 (May 2013): 350–53. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.350.

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The paper studies the dynamic characteristics of liquid sloshing in TLD rectangular container, and verifies the feasibility of finite element numerical simulation, by the theory and finite element numerical simulation of liquid sloshing. Similarly employing the verified numerical simulation method, we get the sloshing frequency and mode of liquid sloshing in TLCD u-tube container.

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Marra, Camillo, Giampiero Villa, Davide Quaranta, Alessandro Valenza, Maria Gabriella Vita, and Guido Gainotti. "Probable Alzheimer's Disease Patients Presenting as “Focal Temporal Lobe Dysfunction” Show a Slow Rate of Cognitive Decline." Journal of the International Neuropsychological Society 18, no. 1 (November 24, 2011): 144–50. http://dx.doi.org/10.1017/s1355617711001287.

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AbstractSeveral authors have recently shown that anterograde amnesia is often associated with semantic memory impairment in amnesic MCI patients. Similarly, after the MCI condition, some patients who convert to Alzheimer's disease (AD) show the classic onset (cAD) characterized by the impairment of memory and executive functions, whereas other AD patients show isolated defects of episodic and semantic memory without deficits in other cognitive domains. The latter have been considered an AD variant characterized by ‘focal Temporal Lobe Dysfunction’ (TLD). The aim of the present study was to assess the differences in disease progression between cAD and TLD. For this purpose a continuous series of newly diagnosed probable AD patients presenting as cAD (n = 30) and TLD (n = 25), matched for severity, and 65 healthy controls underwent a comprehensive neuropsychological evaluation at baseline; TLD and cAD were re-evaluated at a 24-month follow-up. At follow-up, TLD patients showed no significant worsening of cognitive functions, whereas cAD subjects displayed a significant worsening in all explored cognitive domains. In conclusion, our results confirm that probable AD presenting as TLD represents a specific onset of AD characterized by a slower rate of progression. (JINS, 2012, 18, 144–150)

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Hernawan, Safarudin, Eka Djatnika Nugraha, Sutanto Sutanto, and Eri Hiswara. "PEMBUATAN THERMOLUMINESENSE DOSIMETER DARI BAHAN LITIUM FLUORIDA DAN PENGOTOR TITANIUM." Jurnal Forum Nuklir 10, no. 1 (June 7, 2017): 38. http://dx.doi.org/10.17146/jfn.2016.10.1.3492.

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PEMBUATAN THERMOLUMINESENSE DOSIMETER DARI BAHAN LITIUM FLUORIDA DAN PENGOTOR TITANIUM. Teknologi nuklir bermanfaat dalam berbagai bidang, misalnya bidang energi, pertanian, kedokteran, radiologi, lingkungan dan lain-lain, disamping itu paparan radiasi dari teknologi nuklir berdampak buruk bagi sel-sel tubuh manusia. perlu ada pengawasan terhadap pemanfaatan radiasi teknologi nuklir dengan menggunakan alat proteksi radiasi berupa dosimeter personal yaitu thermoluminesense dosimeter (TLD) yang saat ini pengunaannya di Indonesia masih di impor. TLD dapat dibuat dari bahan litium fluorida dengan variasi konsentrasi pengotor titanium 0,04%, 0,06%, dan 0,08% melalui metode kristalisasi dengan pemanasan pada suhu 950 celcius selama lima jam. kristal yang terbentuk dibuat serbuk dan diuji respon, keseragaman, kalibrasi, pemudaran dan pengulangan. hasil pembuatan menunjukkan TLD yang dibuat memiliki respon terhadap radiasi yang optimum pada konsentrasi pengotor titanium 0,06%. TLD yang dibuat memiliki faktor kalibrasi sebesar 0,0936 dan dapat diulang pemakaian sebanyak 5 kali. Pemudaran TLD yang dibuat sebesar 20% selama 14 hari.

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Yan, Xu, and Zhen Yu Lei. "Research on the Application of TLD to Viaduct Box Girder Bridges for Vibration and Noise Reduction." Advanced Materials Research 838-841 (November 2013): 1140–44. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.1140.

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Simulation was conducted to study the feasibility of TLD (tuned liquid damper) on the vibration and noise reduction of rail transit viaduct box girder bridges. The vibration of a 30m span simply supported box girder bridge paved with slab track was modeled in ANSYS. The noise radiation characteristics before and after the installation of TLD were analyzed with Virtual.lab. Results show that TLD can effectively reduce the vibration and noise radiation of rail transit box girder bridges. The vertical displacement peaks of the flange and web can decrease about 40%, while the lateral displacement amplitudes decline by 30%. The lateral noise near webs can reduce 2~3db. The vertical damping property of TLD changes along with the difference of liquid level, and improper use can increase the surface vibration on the contrary. It is suggested that TLD should be used in engineering together with other vibration control measures to reduce the disadvantages.

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Hummel, James P., Martin L. Mayse, Steve Dimmer, and Philip J. Johnson. "Physiologic and histopathologic effects of targeted lung denervation in an animal model." Journal of Applied Physiology 126, no. 1 (January 1, 2019): 67–76. http://dx.doi.org/10.1152/japplphysiol.00565.2018.

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Parasympathetic efferent innervation of the lung is the primary source of lung acetylcholine. Inhaled long-acting anticholinergics improve lung function and symptoms in patients with chronic obstructive pulmonary disease. Targeted lung denervation (TLD), a bronchoscopic procedure intended to disrupt pulmonary parasympathetic inputs, is an experimental treatment for chronic obstructive pulmonary disease. The physiologic and histologic effects of TLD have not previously been assessed. Eleven sheep and two dogs underwent circumferential ablation of the main bronchi with simultaneous balloon surface cooling using a lung denervation system (Nuvaira, Inc., Minneapolis, MN). Changes in pulmonary air flow resistance were monitored before and following TLD. Four animals were assessed for the presence or abolishment of the sensory axon-mediated Hering-Breuer reflex before and following TLD. Six sheep were histologically evaluated 30 days post-TLD for the extent of lung denervation (axonal staining) and effect on peribronchial structures near the treatment site. No adverse clinical effects were seen in any treated animals. TLD produced a ~30% reduction in pulmonary resistance and abolished the sensory-mediated Hering-Breuer reflex. Axonal staining was consistently decreased 60% at 30 days after TLD. All treated airways exhibited 100% epithelial integrity. Damage to other peribronchial structures was minimal. Tissue 1 cm proximal and distal to the treatment was normal, and the esophagus and periesophageal vagus nerve branches were unaffected. TLD treatment effectively denervates the lung while protecting the bronchial epithelium and minimizing effects on peribronchial structures. NEW & NOTEWORTHY The feasibility of targeted lung denervation, a new minimally invasive therapy for obstructive lung disease, has been demonstrated in humans with preliminary clinical studies demonstrating improvement in symptoms, pulmonary function, and exercise capacity in patients with chronic obstructive pulmonary disease. This preclinical animal study demonstrates the ability of targeted lung denervation to disrupt vagal inputs to the lung and details its physiologic and histopathologic effects.

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Krpan, K., S. Miljanić, B. Vekić, S. Deme, P. Szántó, and T. Pázmándi. "TL and PTTL of TLD-100 and TLD-700 after irradiation with Pu–Be neutrons." Radiation Measurements 43, no. 2-6 (February 2008): 1123–27. http://dx.doi.org/10.1016/j.radmeas.2007.11.002.

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Epstein, Baila, Valerie L. Shafer, Robert D. Melara, and Richard G. Schwartz. "Can Children With SLI Detect Cognitive Conflict? Behavioral and Electrophysiological Evidence." Journal of Speech, Language, and Hearing Research 57, no. 4 (August 2014): 1453–67. http://dx.doi.org/10.1044/2014_jslhr-l-13-0234.

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Purpose This study examined whether children with specific language impairment (SLI) are deficient in detecting cognitive conflict between competing response tendencies in a GO/No-GO task. Method Twelve children with SLI (ages 10–12), 22 children with typical language development matched group-wise on age (TLD-A), and 16 younger children with TLD (ages 8–9) matched group-wise on language skills (TLD-L) were tested using a behavioral GO/No-GO paradigm with simultaneous collection of event-related potentials. The N2 component was used as a neural index of the ability to detect conflict between GO and No-GO response tendencies. Results Hit rates did not differentiate the 3 groups. The TLD-L children demonstrated the highest false-alarm rates. The N2 component was attenuated and showed delayed divergence of GO and No-GO amplitudes in SLI relative to TLD-A children in response to stimuli presented at various probability levels. The N2 effect in children with SLI resembled that of children with TLD who were approximately 3 years younger. Conclusions School-age children with SLI exhibit a maturational lag in detecting conflict between competing response alternatives. Deficient conflict detection may in turn hinder these children's ability to resolve conflict among semantic representations that are activated during language processing.

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Omanwar, S. K., K. A. Koparkar, and Hardev Singh Virk. "Recent Advances and Opportunities in TLD Materials: A Review." Defect and Diffusion Forum 347 (December 2013): 75–110. http://dx.doi.org/10.4028/www.scientific.net/ddf.347.75.

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Thermoluminescence (TL) is the thermally stimulated emission of light from an insulator or a semiconductor following the previous absorption of energy from ionizing radiation. TL dosimetry is used in many scientific and applied fields such as radiation protection, radiotherapy, industry, and environmental and space research, using many different materials. The basic demands of a thermoluminescent dosimeter (TLD) are good reproducibility, low hygroscopicity, and high sensitivity for very low dose measurements and good response at high doses in radiotherapy and in mixed radiation fields. In this review, we have discussed the past developments and the future opportunities in TLD materials and our efforts to make better future use of low cost materials in TLD applications. For this we have studied and discussed two efficient TLD phosphors with low cost and simple method of preparation on large scale for TLD materials. One of the phosphors is LiF:Mg,Cu,P (LiF: MCP), and another one is LiCaAlF6:Eu, which has the potential to replace conventionally used CaSO4:Dy TL dosimeter. LiF: MCP and LiCaAlF6: Eu phosphors are potential candidates for TL dosimetry and could be good replacement for commercially available phosphors. Apart from this, we have also studied thermoluminescence in Aluminate and Borate materials. We have discussed in detail all three types of TLD materials. First, our study includes complete detail of material properties, methods and dosimetric characterizations of LiF: MCP Phosphor; second, it includes a new TL Dosimeter, LiCaAlF6: Eu and its dosimetric characterizations; and lastly on some TL properties of Li5AlO4: Mn and MgB4O7: Dy,Na. In this review, we discus some recent developments in radiation dosimetry with regards to the measurement techniques and material preparations. Although many materials have been and are currently being studied for TLD, still there is a scope for the improvement in the material properties useful for the TLD, and the synthesis of new, more suitable materials. Contents of Paper

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Xu, Wei, Xiao Zhang, and Zhi Chang Tian. "Design of Solar Heated Water System Based on TLD System in Baotou." Applied Mechanics and Materials 501-504 (January 2014): 2323–26. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.2323.

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Solar energy is a new manner of clean energy with potential for development in the 21st century. In light of the design of TLD (Tuned Liquid Dampers), the technology of solar heated water system is innovatively put forward to supply hot water for residents. Particular attention is given to analyze the limitations of TLD system. Taking a high-rise building of Baotou as an example, the amount of solar radiation is calculated and data collected are presented in Baotou. There is a focus on counting the load of solar heated water through the life water demand, which determines the area of collector. Finally, the feasibility of solar water heating system is showed in the results by the utilization of TLD system, which provides a certain reference action for future research work of TLD system.

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Kim, Sunghwan, Jongkyu Cheon, Jae Jin Lee, and Uk-Won Nam. "Estimation of Neutron Energy Spectrum of Cf-252 using Single Bonner Sphere with TLD-600 and TLD-700." Journal of Sensor Science and Technology 22, no. 3 (May 31, 2013): 223–26. http://dx.doi.org/10.5369/jsst.2013.22.3.223.

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Jones, S. C. "Laser TLD 2-Dimensional Dose Mapping." Radiation Protection Dosimetry 47, no. 1-4 (May 1, 1993): 457–60. http://dx.doi.org/10.1093/rpd/47.1-4.457.

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Espinosa, G., J. I. Golzarri, J. Bogard, and J. García-Macedo. "Commercial optical fibre as TLD material." Radiation Protection Dosimetry 119, no. 1-4 (May 18, 2006): 197–200. http://dx.doi.org/10.1093/rpd/nci564.

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Jones, S. C. "Laser TLD 2-Dimensional Dose Mapping." Radiation Protection Dosimetry 47, no. 1-4 (May 1, 1993): 457–60. http://dx.doi.org/10.1093/oxfordjournals.rpd.a081785.

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Spurný, F., and I. Votocková. "TLD Response to Low Energy Protons." Radiation Protection Dosimetry 48, no. 4 (August 1, 1993): 341–45. http://dx.doi.org/10.1093/oxfordjournals.rpd.a081882.

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ARUNKUMAR SHARMA, B., R. K. GARTIA, and S. NABADWIP SINGH. "FADING CORRECTION OF NaCl(I) TLD." International Journal of Modern Physics B 20, no. 09 (April 10, 2006): 1077–86. http://dx.doi.org/10.1142/s0217979206033759.

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The prediction of fading for the glow peaks relevant to dosimetry of iodised salt has been made using the values of the trapping parameters, namely the thermal activation energy (E), frequency factor (s) and the order of kinetic (b). This theoretical prediction has been checked with experimentally observed glow curves recorded after storage period of 2, 5, 10, 165, 375 and 790 days at room temperature (~21°C). Excellent agreement has been observed between the experimental and theoretical glow curves. This has been possible because of reliable retrieval of the trapping parameters by the use of Computerised Glow Curve Deconvolution (CGCD) as well as state-of-art of data acquisition system. The concept developed in the present paper in principle may be applied to any TLD.

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Prokic, M. "A TLD System for Environmental Monitoring." Radiation Protection Dosimetry 66, no. 1 (July 1, 1996): 153–56. http://dx.doi.org/10.1093/oxfordjournals.rpd.a031704.

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Mauricio, Claudia L. P., Emanuela Bortolin, and Sandro Onori. "ESR study of CASO4:Dy TLD." Radiation Measurements 26, no. 4 (July 1996): 639–44. http://dx.doi.org/10.1016/1350-4487(96)00028-5.

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