Academic literature on the topic 'TSD'
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Journal articles on the topic "TSD"
1
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 (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.
2
Yao, Yong Zhao, Yukari Ishikawa, Yoshihiro Sugawara, et al. "Dislocations in SiC Revealed by NaOH Vapor Etching and a Comparison with X-Ray Topography Taken with Various g-Vectors." Materials Science Forum 858 (May 2016): 389–92. http://dx.doi.org/10.4028/www.scientific.net/msf.858.389.
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Threading dislocations (TDs) in 4H-SiC have been studied by comparing etch pits formed by NaOH vapor etching with results of synchrotron monochromatic-beam X-ray topography (XRT) taken under different g-vectors. Burgers vectors determined based on XRT results were utilized to investigate the etch pit characteristics of edge (TED), screw (TSD) and mixed (Burgers vector b=c+a, TMD) threading dislocations. It has been found that pit formation by NaOH vapor etching was very different to that by conventional molten KOH etching. We discuss the possibility of using NaOH vapor etching to distinguish TMDs from TSDs, and report a variety of characteristic etch pits formed by this method and their correlations to dislocation behavior.
3
Yao, Yong Zhao, Yukari Ishikawa, Yoshihiro Sugawara, et al. "Dislocation Revelation for 4H-SiC by Using Vaporized NaOH: A Possible Way to Distinguish Edge, Screw and Mixed Threading Dislocations by Etch Pit Method." Materials Science Forum 778-780 (February 2014): 346–49. http://dx.doi.org/10.4028/www.scientific.net/msf.778-780.346.
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In this paper, we report a newly developed dislocation-revealing etch pit method for 4H-SiC single crystal, which can distinguish edge (TED, Burgers vector b=a), elementary screw (TSD, b=1c) and mixed (TMD, b=c+a) threading dislocations. In this method, vaporized NaOH gas was used to etch the Si-face of a SiC wafer at substrate temperature around 950 °C. By a side-by-side comparison between the optical images of the etch pits and the X-ray topographic (XRT) images, it has been found that threading dislocations (TDs) in SiC could be revealed as hexagonal etch pits with distinct geometrical features (shape, size and facet orientation) depending on their Burgers vectors. Based on these results, we consider this etch pit method as an easily-operated and inexpensive technique to categorize TDs, and it may help to promote our understanding on the different roles that these types of TDs have played in the performance degradation of SiC power devices.
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Yamamoto, Kensaku, M. Nagaya, H. Watanabe, E. Okuno, T. Yamamoto, and S. Onda. "Influence of Threading Dislocations on Lifetime of Gate Thermal Oxide." Materials Science Forum 717-720 (May 2012): 477–80. http://dx.doi.org/10.4028/www.scientific.net/msf.717-720.477.
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The reliability of gate oxides is a fundamental issue for realizing SiC MOSFETs. Many reports said that crystal defects shorten the lifetime of the gate oxide. And, epi defects, the basal plane dislocations and threading screw dislocations (TSD) are considered killer defects. However, because of the high TSD density of commercial SiC wafers, the exact relationship between other kinds of dislocations with lifetime has not been revealed. On the other hand, RAF wafers that we developed have low TSD density, so it is easy to evaluate the relationship between other kinds of dislocations and lifetime. By using RAF wafers, in this study, we clarified the relationship between the lifetime of the gate oxide and crystal defects. We fabricated MOS diodes and measured their lifetimes by TDDB (Time Dependent Dielectric Breakdown) measurement. The breakdown points were defined by the photo-emission method. Finally, we classified the defects by TEM (Transmission Electron Microscopy). As the results, it was clarified that threading edge dislocation (TED) decreases the lifetime as does TSD, which earlier reports said. The lifetime of the gate oxide area, in which a TED is included, was shorter by one order of magnitude than a wear-out breakdown. And, the TSD was two orders.
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Kaur, Savreen. "Evaluation of Effectiveness of Three Different Behavioral Modification Techniques among 4–8-year-old Children." Current Trends in Dentistry 1, no. 1 (2024): 33–37. http://dx.doi.org/10.4103/ctd.ctd_7_24.
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Abstract Background: Dental anxiety being attributed by many as a major cause to avoid seeking dental care by children, so several communicative, advanced, and pharmacological interventions have been developed to manage children’s anxious and cooperative behaviors. Aim: To evaluate the effectiveness of tell–show–do (TSD), tell–play–do (TPD), and ask–tell–ask (ATA) behavioral modification techniques among 4–8 years old coming for a restorative treatment. Materials and Methods: Thirty children aged 4–8 years were enrolled in the study and randomly allocated to three groups, 10 children in each group. Group A: Those to receive restorative treatment by the behavior modification technique (BMT) of TSD; Group B: Those to receive restorative treatment by BMT of TPD; and Group C: Those to receive restorative treatment by BMT of ATA. Evaluation: Each child’s heart rate was monitored before, during, and after the entire treatment with a pulse oximeter. The oximeter was clipped to the thumb of the child’s left hand. Furthermore, Frankel Behavioral Rating Scale was to be monitored before, during, and after the procedure. Results: TPD technique is more efficient than TSD and ATA to control 4–8-year-old children’s anxiety and achieve cooperative behavior during dental treatment. Conclusion: TPD is a technique worth practicing in pediatric dentistry. The dentist should consider the cognitive development of the patient to communicate effectively for developing sound rapport and trust. Each dental visit should be designed to receive proper behavioral guidance techniques such as TPD, TSD, and modeling; these can help the child to develop a positive attitude toward oral health.
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Kurczewska, Ewa, Ewa Ferensztajn-Rochowiak, Anna Jasińska-Mikołajczyk, Maria Chłopocka-Woźniak, and Janusz K. Rybakowski. "Augmentation of Pharmacotherapy by Sleep Deprivation with Sleep Phase Advance in Treatment-Resistant Depression." Pharmacopsychiatry 52, no. 04 (2018): 186–92. http://dx.doi.org/10.1055/a-0695-9138.
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Abstract Introduction The aim was to assess the efficacy of total sleep deprivation (TSD) with sleep phase advance (SPA) in treatment-resistant depression (TRD) and associated biochemical factors. Methods We studied nine males and 12 females, aged 49±14 years, with treatment-resistant unipolar or bipolar depression, receiving antidepressant and mood-stabilizing drugs. The four-day schedule included single TSD and three consecutive nights with SPA. Biochemical markers were measured on the day before and on 1st, 7th and 14th day after the TSD. Results Ten subjects met criteria for response, defined as a reduction of ≥50% in the Hamilton Depression Rating Scale, on the 14th day. Concentrations of cortisol at baseline were lower in responders, and they decreased during therapy in both groups. In responders, there was an increase of interleukin-10 (IL-10) and IL-1β on the 14th day. Discussion Our preliminary study demonstrated the efficacy of pharmacotherapy augmentation by TSD and SPA in half of the patients with TRD. The main biochemical factors related to clinical response included status of cortisol and increase in IL-10 and IL-1β levels.
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Kurczewska, Ewa, Ewa Ferensztajn-Rochowiak, Maria Chłopocka-Woźniak, and Janusz Rybakowski. "Sleep deprivation with sleep phase advance in treatment-resistant depression therapy in relation to features of circadian rhythm and temperament – a pilot study." Pharmacotherapy in Psychiatry and Neurology 34, no. 4 (2019): 249–62. http://dx.doi.org/10.33450/fpn.2019.01.001.
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Objectives. The efficacy of pharmacotherapy augmentation by total sleep deprivation (TSD) with sleep phase advance (SPA) was evaluated in patients with treatment-resistant depression (TRD). The study examined the relationship between chronotype, affective temperaments and clinical improvement resulting from the treatment. Material and methods. The study group comprised of 30 persons with treatment-resistant unipolar (n = 15) or bipolar (n = 15) depression aged 52 ± 12 years (17 women and 13 men). TSD and three consecutive nights with SPA were used during pharmacotherapy. Severity of depression was determined using the Hamilton Depression Rating Scale (HDRS). All patients were assessed using the Composite Scale of Morningness (CSM) and Temperament Evaluation of Memphis, Pisa, Paris, and San Diego Auto-questionnaire (TEMPS-A). Results. Clinical response, defined as a reduction in the severity of depression by ≥ 50% in HDRS compared to the baseline score, lasting until the end of the study (14 days), was obtained in 16 out of 30 patients with TRD. There was found no significant correlation between clinical improvement, chronotype and affective temperaments. Conclusions. TSD with SPA proved to be an effective method of pharmacotherapy augmentation in over half of the patients with TRD. The relationship between chronotype, affective temperaments and the clinical response to chronotherapy of depression requires further research.
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Shin, Eun-Sun, Mi-Jeong Yang, Kyung Hwa Jung, et al. "Influence of the Transposition of the Thermostabilizing Domain of Clostridium thermocellum Xylanase (XynX) on Xylan Binding and Thermostabilization." Applied and Environmental Microbiology 68, no. 7 (2002): 3496–501. http://dx.doi.org/10.1128/aem.68.7.3496-3501.2002.
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ABSTRACT A xylanase gene, xynX, of Clostridium thermocellum had one thermostabilizing domain (TSD) between the signal peptide sequence and the catalytic domain (CD). The TSD of a truncated xylanase gene, xynX′TSD-CD, was transpositioned from the N terminus to the C terminus of the CD by overlapping PCRs, and a modified product, xynX′CD-TSD, was constructed. XynX′TSD-CD had a higher optimum temperature (70°C versus 65°C) and was more thermostable (residual activity of 68% versus 46% after a 20-min preincubation at 70°C) than the one without the TSD, XynX′CD. However, the domain-transpositioned enzyme, XynX′CD-TSD, showed a lower optimum temperature (30°C) and thermostability (20%) than XynX′CD. Both XynX′TSD-CD and XynX′CD-TSD showed significantly higher binding capacity toward xylan than XynX′CD, and the domain transposition did not cause any change in the binding ability. XynX′TSD-CD and XynX′CD-TSD also showed considerable binding to lichenan but not to carboxymethyl cellulose and laminarin. XynX′TSD-CD and XynX′CD-TSD had higher activities for insoluble xylan than XynX′CD, while XynX′CD was more active against soluble xylan than XynX′TSD-CD and XynX′CD-TSD. These results indicate that the TSD of XynX has dual functions, xylan binding and thermostabilization, and the domain should also be classified as a xylan-binding domain (XBD). The binding capacity of the XBD was not affected by domain transpositioning within the gene.
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Lian, Jie, Lin Xu, Tao Song, et al. "Reduced Resting-State EEG Power Spectra and Functional Connectivity after 24 and 36 Hours of Sleep Deprivation." Brain Sciences 13, no. 6 (2023): 949. http://dx.doi.org/10.3390/brainsci13060949.
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Total sleep deprivation (TSD) leads to cognitive decline; however, the neurophysiological mechanisms underlying resting-state electroencephalogram (EEG) changes after TSD remain unclear. In this study, 42 healthy adult participants were subjected to 36 h of sleep deprivation (36 h TSD), and resting-state EEG data were recorded at baseline, after 24 h of sleep deprivation (24 h TSD), and after 36 h TSD. The analysis of resting-state EEG at baseline, after 24 h TSD, and after 36 h TSD using source localization analysis, power spectrum analysis, and functional connectivity analysis revealed a decrease in alpha-band power and a significant increase in delta-band power after TSD and impaired functional connectivity in the default mode network, precuneus, and inferior parietal lobule. The cortical activities of the precuneus, inferior parietal lobule, and superior parietal lobule were significantly reduced, but no difference was found between the 24 h and 36 h TSD groups. This may indicate that TSD caused some damage to the participants, but this damage temporarily slowed during the 24 h to 36 h TSD period.
10
Derardja, Ala eddine, and Malika Barkat. "Effect of traditional sun-drying and oven-drying on carotenoids and phenolic compounds of apricot (Prunus armeniaca L.)." North African Journal of Food and Nutrition Research 3, no. 6 (2019): 186–94. http://dx.doi.org/10.51745/najfnr.3.6.186-194.
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Background: The indubitable role of phytochemicals such as carotenoids and phenolic compounds in human health has prompted the researchers to study the factors affecting the stability and the availability of these compounds. Aims: This study investigates the effect of two drying processes; oven-drying (OD) and traditional sun-drying (TSD) on carotenoids and phenolic compounds of apricots. Material and Methods: OD was performed at 65°C, and TSD was performed by direct exposure of apricot to sunlight at daytime temperatures around 40°C and relative humidity between 25 and 35%, following an Algerian traditional method of drying. Carotenoids and phenolic compounds were extracted, and then total carotenoids (TC), total phenolic compounds (TPC), total flavonoids (TF) and total tannins (TT) were spectrophotometrically quantified. The free radical scavenging activity (FRSA) of the phenolic extracts was measured by the DPPH method. Results: Carotenoids and phenolic compounds were significantly affected by both drying methods. OD decreased TC and TT by 44% and 12%, respectively, and increased TPC and TF by 4%. TDS affected negatively all the measured components, where TC, TPC, TF, and TT decreased by 67%, 15%, 43%, and 36%, respectively. However, the highest FRSA was reported for the TSD apricots (40%) followed by OD apricots (36%), and fresh apricots (32%). Conclusions: The effect of drying on apricot antioxidants depends on the applied drying method and the studied component. The direct sunlight exposure and the duration of drying condemned TSD to be more harmful on carotenoids and phenolic compounds compared to OD, where carotenoids where more fragile during TSD. In addition, OD improved the content of phenolic compounds by improving their extractability. However, TSD apricots seem to be a better source of free radical scavenging compounds. Keywords: Apricot, traditional sun-drying, oven-drying, carotenoids, phenolic compounds.
Dissertations / Theses on the topic "TSD"
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Shrestha, Shivesh. "Development of structural condition thresholds for TSD measurements." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/78039.
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This thesis presents (a) results of a field evaluation of the Traffic Speed Deflectometer (TSD) in the United States (b) deflection thresholds to classify the pavement structural condition obtained from the TSD for a small subset of the Pennsylvania secondary road network. The results of the field evaluation included: (1) repeatability of the TSD, (2) ability of the TSD to identify pavement sections with varying structural conditions, and (3) consistency between the structural number (SNeff) calculated from the TSD and SNeff calculated by the Pennsylvania Department of Transportation (PennDOT). The results showed consistent error standard deviation in the TSD measurements and that the TSD was able to identify pavement sections that varied in structural condition. Comparison of the SNeff calculated with TSD measurements, using an empirically developed equation by Rohde, with the SNeff calculated by PennDOT’s Pavement Management System based on construction history showed similar trends, although the TSD-calculated SNeff was higher.
In order to develop deflection thresholds, a model that related the pavement surface condition to pavement surface age and structural condition was developed. Structural condition thresholds were then selected so that the pavement surface condition predicted from the model for a 10-year-old pavement surface fell within one of the three condition categories (Good, Fair, and Poor), to identify pavements in good, fair and poor condition. With Overall Pavement Index(OPI) characterizing the surface condition and Deflection Slope Index(DSI) characterizing the structural condition, the DSI threshold that separates structurally good from structurally fair pavements was determined as follows: (1) the OPI threshold that separates pavements with good surface condition from those with fair surface condition was obtained from the Pennsylvania Pavement Management System (PMS) and (2) the DSI thresholds were calculated using the determined OPI value and the model equation.<br>Master of Science<br>This thesis presents (a) some of the results of a field evaluation of the Traffic Speed Deflectometer (TSD) in the United States (b) deflection thresholds to classify the pavement structural condition obtained from the TSD for a small subset of the Pennsylvania secondary road network. The results of the field evaluation included: (1) repeatability of the TSD: which is the variation in repeated TSD measurements on the same section of the road, (2) ability of the TSD to identify pavement sections with varying structural conditions, and (3) consistency between the structural number (SNeff) calculated from the TSD and SNeff calculated by the Pennsylvania Department of Transportation (PennDOT). The pavement structural number is an abstract number expressing the structural strength of the pavement. The results showed that the TSD measurements were repeatable and that the TSD was able to identify pavement sections that varied in structural condition. Comparison of the SNeff calculated with TSD measurements, using an empirically developed equation by Rohde, with the SNeff calculated by PennDOT Pavement Management System based on construction history showed similar trends, although the TSD-calculated SNeff was higher.
In order to develop deflection thresholds to categorize pavements in different condition: good, fair and poor, a model that related the pavement surface condition to pavement surface age and structural condition was developed. Structural condition thresholds were then selected so that the pavement surface condition predicted from the model for a 10-year-old pavement surface fell within one of the three condition categories (Good, Fair, and Poor), to identify pavements in good, fair and poor condition. With Overall Pavement Index(OPI) characterizing the surface condition and Deflection Slope Index(DSI) characterizing the structural condition, the DSI threshold that separates structurally good from structurally fair pavements was determined as follows: (1) the OPI threshold that separates pavements with good surface condition from those with fair surface condition was obtained from the Pennsylvania Pavement Management System (PMS) and (2) the DSI thresholds were calculated using the determined OPI value and the model equation.
2
Roush, Danielle Marie. "Review of Genetic and Maternal Effects on TSD in Reptiles and Identification of Population Differentiation in Putative TSD Genes in Chelydra serpentina." Thesis, The University of North Dakota, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10814732.
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<p> Variation in sex ratio among clutches of eggs from different females is common in reptiles with TSD, but the mechanisms that cause this variation are unknown. In an effort to shed light on these mechanisms, we first critically review literature that examines variation in temperature-dependent sex determination (TSD) within species. Genetic variation in TSD and maternal effects on TSD are two major mechanisms that have received attention. We outline the types of experiments and data required to demonstrate that a) genetic variation, b) maternally derived steroids, or c) both factors influence variation in sex ratio among clutches. Next, we compare allele frequencies between populations of <i>Chelydra serpentina</i> that differ in thermosensitivity of sex determination and identify population differentiation in putative TSD genes.</p><p>
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Robert, Kylie Anne. "Temperature-dependent sex determination in the viviparous lizard Eulamprus tympanum." Thesis, The University of Sydney, 2003. http://hdl.handle.net/2123/557.
Full textAbstract:
Abstract There are a remarkable variety of sex determination systems among different animal taxa. In most animals, sex is determined chromosomally. Although in an increasing number of animals sex determination has been found to be influenced primarily by the environment. Species with genotypic sex determination (GSD) have their sex determined at the time of fertilization, by genetic factors alone and those with environmental sex determination (ESD) have their sex determined by environmental factors that act after fertilization. Temperature-dependent Sex Determination (TSD), whereby the sex of the developing embryos depends on the temperature at which they develop is widespread in oviparous reptiles and occurs in all crocodilians, marine turtles and tuatara examined to date and is common in many freshwater turtles and lizards. SECTION ONE Temperature-dependent sex determination (TSD) was never expected to occur in viviparous reptiles, as thermoregulation by pregnant females would result in relatively stable gestation temperatures. Temperature-dependent sex determination and viviparity goes against all the basic assumptions that TSD occurs in oviparous reptiles where temperatures within a nest vary widely. However, skewed sex ratios as a result of incubation temperature indicated the possibility of TSD in the viviparous lizard Eulamprus tympanum. In my first experiments I show the first recorded case of a viviparous reptile with TSD. The developing embryos of the viviparous skink E. tympanum are subject to TSD, with gestation temperature having a highly significant effect on sex and warmer temperatures giving rise to male offspring (Chapter 1). Sex is fully determined at the time of birth and can be differentiated histologically into testes or ovaries (Chapter 2). The morphology and histological characteristics of the gonads of neonatal E. tympanum resulting from the treatment temperatures described in chapter 1 illustrate that sex in E. tympanum is easily distinguished at the time of birth and corresponds with the presence or absence of hemipenes. Males are histologically characterised by an elongated gonad consisting of seminiferous tubules with either no cortical epithelium or, if present at all, in a very thin band. If they are present, Mϋllerian ducts, showing signs of degeneration, are attached to the kidney by a shortened mesosalpinx. Females are histologically characterised by an irregularly shaped gonad consisting of a thick cortical epithelium that occasionally contains oocytes. The Mϋllerian ducts are obvious structures attached to the kidney by a fibrous mesosalpinx. The presence or absence of hemipenes is a reliable technique for determining sex in newborn E. tympanum. Sex determination is easiest to perform on neonates within the first few days of birth as hemipenes become increasingly difficult to evert as neonates age, however, with practice they are easily identified without full eversion. SECTION TWO The thermal biology of E. tympanum in the field is restricted by both the thermal properties of their habitat (Chapter 3) and behavioural modifications when faced with a predation threat (Chapter 4). The available temperatures in the field suggest that TSD is biologically relevant in the species and not just a laboratory artefact; E. tympanum can attain mean selected temperatures achieved in the laboratory but the proportion of time at the temperature is restricted. Females actively thermoregulate in the field, although they are restricted in their efficiency of thermoregulation by environmental constraints, for example, microhabitat structure, weather conditions, predator avoidance and social ranking. The highly territorial nature and high densities of E. tympanum present in Kanangra Boyd National Park potentially force less dominant individuals into less favourable habitats that are significantly cooler. An important point is that gravid females in more favourable habitats in the period encompassing the middle third of development (the assumed sex determining period) are selecting higher temperatures, with lower variance and have greater thermoregulatory efficiency than during the rest of pregnancy, therefore, thermoregulating more precisely during this thermosensitive period (Chapter 3). Chemosensory cues provide important information on the risk of predation. Hence, chemoreception is a common mechanism used by many species to detect the presence of, and subsequently respond to, a potential predator. The perceived risk of predation may force retreat to sub-optimal conditions, forcing a trade-off between the risk of predation and the ability to acquire resources. The basking regime maintained by gravid female E. tympanum, can directly alter sex ratios of offspring produced through temperature-dependent sex determination (Chapter 1). The avoidance of predator scents may restrict basking ability and in turn alter the sex of offspring produced. I measured responsiveness to chemical cues using tongue flicks as an indicator of chemical discrimination in females of different reproductive condition. I then measured activity and basking behaviour of gravid and non-gravid females in experimental enclosures in the presence of various chemical stimuli to determine if basking opportunity is compromised by the presence of a predator scent. Females respond differently depending upon reproductive condition, with gravid females responding most significantly to a predator scent. Activity, basking frequency, and time spent in the open (basking duration) are significantly reduced in gravid females in the presence of a predator stimulus. Under laboratory conditions, gravid females modify their behaviour and forego the opportunity to bask when there is a perceived predation risk (Chapter 4). SECTION THREE As female viviparous reptiles can regulate the temperature of the embryo by maternal temperature selection (Chapter 1), the occurrence of TSD in E. tympanum opens the possibility for females to select the sex of offspring. Reproducing females may benefit by facultatively adjusting their investment into sons over daughters or vice versa, in response to population wide shifts in adult sex ratios. Female E. tympanum, can manipulate the sex of their offspring in response to sex imbalances in the population using temperature-dependent sex determination (Chapter 5). When adult males are scarce, females produce male-biased litters and when adult males are common, females produce female-biased litters. The cues used by a female to assess the adult population are not known, but presumably depends upon the female's experience throughout the breeding season and is the subject of further investigation (Chapter 6). The maternal manipulation of offspring sex ratio in E. tympanum suggests a selective advantage of temperature-dependent sex determination. Any facultative sex ratio response needs to recognise the scarcity of one sex in order to overproduce that sex in the next generation; offspring sex ratio will vary inversely with adult sex ratio. Maternal sex allocation in E. tympanum is linked with population (or adult) sex ratio (Chapter 5), and one of the mechanisms by which females recognise an imbalance may be linked to visual recognition of males (Chapter 6). Females maintained throughout pregnancy without any male stimulus produce entirely male offspring (Chapter 5). In contrast females exposed to male stimulus produce both sexes (Chapter 5). Females respond differently to varying degrees of male stimulus and visual recognition of males in a population may be more important than chemoreception. In the absence of visual cues, females produce more male offspring, even when chemosensory cues are present (Chapter 6). The study system presented here offers many advantages over oviparous species with TSD, due to E. tympanum being relatively short lived and fast maturing. Thus, the fitness consequences over multiple generations as a result of gestation can be investigated. Viviparity allows maternal control of embryonic temperature during gestation and a means of maternal sex allocation. Until now the maternal side of TSD and sex allocation has been where the mother deposits her eggs and the allocation of sex steroid hormones at oviposition, both of which have been difficult to study. The work presented and the study system itself should inspire great interest in TSD and viviparous reptiles.
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Robert, Kylie Anne. "Temperature-dependent sex determination in the viviparous lizard Eulamprus tympanum." University of Sydney. Biological Science, 2003. http://hdl.handle.net/2123/557.
Full textAbstract:
Abstract There are a remarkable variety of sex determination systems among different animal taxa. In most animals, sex is determined chromosomally. Although in an increasing number of animals sex determination has been found to be influenced primarily by the environment. Species with genotypic sex determination (GSD) have their sex determined at the time of fertilization, by genetic factors alone and those with environmental sex determination (ESD) have their sex determined by environmental factors that act after fertilization. Temperature-dependent Sex Determination (TSD), whereby the sex of the developing embryos depends on the temperature at which they develop is widespread in oviparous reptiles and occurs in all crocodilians, marine turtles and tuatara examined to date and is common in many freshwater turtles and lizards. SECTION ONE Temperature-dependent sex determination (TSD) was never expected to occur in viviparous reptiles, as thermoregulation by pregnant females would result in relatively stable gestation temperatures. Temperature-dependent sex determination and viviparity goes against all the basic assumptions that TSD occurs in oviparous reptiles where temperatures within a nest vary widely. However, skewed sex ratios as a result of incubation temperature indicated the possibility of TSD in the viviparous lizard Eulamprus tympanum. In my first experiments I show the first recorded case of a viviparous reptile with TSD. The developing embryos of the viviparous skink E. tympanum are subject to TSD, with gestation temperature having a highly significant effect on sex and warmer temperatures giving rise to male offspring (Chapter 1). Sex is fully determined at the time of birth and can be differentiated histologically into testes or ovaries (Chapter 2). The morphology and histological characteristics of the gonads of neonatal E. tympanum resulting from the treatment temperatures described in chapter 1 illustrate that sex in E. tympanum is easily distinguished at the time of birth and corresponds with the presence or absence of hemipenes. Males are histologically characterised by an elongated gonad consisting of seminiferous tubules with either no cortical epithelium or, if present at all, in a very thin band. If they are present, M�llerian ducts, showing signs of degeneration, are attached to the kidney by a shortened mesosalpinx. Females are histologically characterised by an irregularly shaped gonad consisting of a thick cortical epithelium that occasionally contains oocytes. The M�llerian ducts are obvious structures attached to the kidney by a fibrous mesosalpinx. The presence or absence of hemipenes is a reliable technique for determining sex in newborn E. tympanum. Sex determination is easiest to perform on neonates within the first few days of birth as hemipenes become increasingly difficult to evert as neonates age, however, with practice they are easily identified without full eversion. SECTION TWO The thermal biology of E. tympanum in the field is restricted by both the thermal properties of their habitat (Chapter 3) and behavioural modifications when faced with a predation threat (Chapter 4). The available temperatures in the field suggest that TSD is biologically relevant in the species and not just a laboratory artefact; E. tympanum can attain mean selected temperatures achieved in the laboratory but the proportion of time at the temperature is restricted. Females actively thermoregulate in the field, although they are restricted in their efficiency of thermoregulation by environmental constraints, for example, microhabitat structure, weather conditions, predator avoidance and social ranking. The highly territorial nature and high densities of E. tympanum present in Kanangra Boyd National Park potentially force less dominant individuals into less favourable habitats that are significantly cooler. An important point is that gravid females in more favourable habitats in the period encompassing the middle third of development (the assumed sex determining period) are selecting higher temperatures, with lower variance and have greater thermoregulatory efficiency than during the rest of pregnancy, therefore, thermoregulating more precisely during this thermosensitive period (Chapter 3). Chemosensory cues provide important information on the risk of predation. Hence, chemoreception is a common mechanism used by many species to detect the presence of, and subsequently respond to, a potential predator. The perceived risk of predation may force retreat to sub-optimal conditions, forcing a trade-off between the risk of predation and the ability to acquire resources. The basking regime maintained by gravid female E. tympanum, can directly alter sex ratios of offspring produced through temperature-dependent sex determination (Chapter 1). The avoidance of predator scents may restrict basking ability and in turn alter the sex of offspring produced. I measured responsiveness to chemical cues using tongue flicks as an indicator of chemical discrimination in females of different reproductive condition. I then measured activity and basking behaviour of gravid and non-gravid females in experimental enclosures in the presence of various chemical stimuli to determine if basking opportunity is compromised by the presence of a predator scent. Females respond differently depending upon reproductive condition, with gravid females responding most significantly to a predator scent. Activity, basking frequency, and time spent in the open (basking duration) are significantly reduced in gravid females in the presence of a predator stimulus. Under laboratory conditions, gravid females modify their behaviour and forego the opportunity to bask when there is a perceived predation risk (Chapter 4). SECTION THREE As female viviparous reptiles can regulate the temperature of the embryo by maternal temperature selection (Chapter 1), the occurrence of TSD in E. tympanum opens the possibility for females to select the sex of offspring. Reproducing females may benefit by facultatively adjusting their investment into sons over daughters or vice versa, in response to population wide shifts in adult sex ratios. Female E. tympanum, can manipulate the sex of their offspring in response to sex imbalances in the population using temperature-dependent sex determination (Chapter 5). When adult males are scarce, females produce male-biased litters and when adult males are common, females produce female-biased litters. The cues used by a female to assess the adult population are not known, but presumably depends upon the female�s experience throughout the breeding season and is the subject of further investigation (Chapter 6). The maternal manipulation of offspring sex ratio in E. tympanum suggests a selective advantage of temperature-dependent sex determination. Any facultative sex ratio response needs to recognise the scarcity of one sex in order to overproduce that sex in the next generation; offspring sex ratio will vary inversely with adult sex ratio. Maternal sex allocation in E. tympanum is linked with population (or adult) sex ratio (Chapter 5), and one of the mechanisms by which females recognise an imbalance may be linked to visual recognition of males (Chapter 6). Females maintained throughout pregnancy without any male stimulus produce entirely male offspring (Chapter 5). In contrast females exposed to male stimulus produce both sexes (Chapter 5). Females respond differently to varying degrees of male stimulus and visual recognition of males in a population may be more important than chemoreception. In the absence of visual cues, females produce more male offspring, even when chemosensory cues are present (Chapter 6). The study system presented here offers many advantages over oviparous species with TSD, due to E. tympanum being relatively short lived and fast maturing. Thus, the fitness consequences over multiple generations as a result of gestation can be investigated. Viviparity allows maternal control of embryonic temperature during gestation and a means of maternal sex allocation. Until now the maternal side of TSD and sex allocation has been where the mother deposits her eggs and the allocation of sex steroid hormones at oviposition, both of which have been difficult to study. The work presented and the study system itself should inspire great interest in TSD and viviparous reptiles.
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Haidari, Bahaman, and Isak Holm. "Verifiering av ERTMS-signalprojektering : Tillämpning mot Estland." Thesis, KTH, Skolan för teknik och hälsa (STH), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-168946.
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Inom EU finns ett regelverk som strävar efter interoperabilitet att det ska vara lätt att kunna resa och göra affärer mellan alla nationer inom EU utan att behöva vare sig byta tåg eller förare. Denna rapport specificerar de olika lagar och regler som utfärdats och specificerats av EU kommissionen och UNISIG samt det svenska nationella regelverket som gäller för ERTMS-signalprojekteringen för markutrustning. Idag finns ett behov av att effektivisera signalprojekteringen eftersom det finns flera pågående och kommande projekt. För att nå detta kommer en checklista för signalprojektering tas fram som tydligt ska visa exempelvis var en balis i förhållande till en signalpunktstavla ska placeras genom att hänvisa till korrekt delkapitel i respektive dokument. Uppdraget med examensarbetet är att det ska bli enklare att verifiera ERTMS-signalprojekteringen på helt nya sträckor i Sverige och internationellt. Detta är något som ännu inte är standardiserat. För att detta ska vara möjligt görs studier om TSD och SUBSET (de dokument som styr och reglerar ERTMS signalering) och relevanta dokument samt analys av några redan genomförda signalprojekteringar på Ådalsbanan. I rapporten presenteras en sammanställning av signalprojektering och hur de olika faserna ska ske, hur de ska genomföras och vad de har för betydelse. Arbetet har resulterat i en sammanställning och analys av det mest relevanta fakta som gruppen hittat i de behandlade dokumenten samt en checklista för signalprojektering. I denna rapport har gruppen producerat en komplett sammanställning av de behandlade dokumenten för ERTMS-signalprojektering samt en checklista för verifiering av ERTMS-signalprojektering.<br>EU has a framework that strives to interoperability to make it easy to travel and do business with all nations in the EU without the need to change trains or drivers. This report discribes the various laws and regulations that issued and specified by the EU Commission, UNISIG and the Swedish national rules that apply for ERTMS signalling project planning for trackside equipment. Today there is a need to more efficient the signal project planning. To achieve this, a checklist for signaling project planning will be developed that clear show, for example, where an Eurobalise in relation to a signal point should be located by referring to the correct subchapter in the right document. The mission of the project is to make it easier to design new production of ERTMS signalling project planning. To make this be possible studies has been done to TSI, SUBSET (the documents that controls and regulates the ERTMS signalling), relevant documents and analysis already implemented signalling project planning on Ådallines. The report presents a compilation of the signal project and how the different phases will occur, how they will be implemented and their significance. In this report, the group has produced a complete compilation of the processed documents for ERTMS signalling project and a checklist for verification of the ERTMS signalling project.
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Martínez, Miraval Mihály André. "Una propuesta para articular área y medida usando la TSD, en alumnos de nivel superior." Master's thesis, Pontificia Universidad Católica del Perú, 2015. http://tesis.pucp.edu.pe/repositorio/handle/123456789/6113.
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Esta tesis tiene como objetivo analizar el aprendizaje de los estudiantes de primer ciclo
de la carrera de Administración de una universidad de Lima, al trabajar una secuencia
didáctica, mediada por el GeoGebra, que los lleve a modificar y a manipular un
procedimiento flexible con rectángulos, que les permita adquirir la noción de que
pueden aproximarse tanto como quieran a la medida de un área, limitada bajo ciertas
condiciones, y expresar dicha aproximación como la adición de las medidas de las áreas
de cada uno de los rectángulos.
Debido a que los estudiantes conocen fórmulas de geometría y procedimientos de
cálculo para obtener la medida de áreas poligonales, pero desconocen cómo determinar
la medida de un área no poligonal o qué procedimiento emplear para aproximarse a
dicha medida, nos planteamos responder a partir de nuestra investigación la siguiente
interrogante: ¿Una secuencia didáctica, mediada por el GeoGebra, permitirá articular la
concepción que tiene los estudiantes acerca de la medida del área, como un número
asociado al área obtenido mediante fórmulas de geometría, y un procedimiento flexible
que permita aproximar ese número tanto como se quiera y expresar dicha aproximación
como una adición de términos?
Para esta investigación hemos elegido como referencial teórico algunos aspectos de la
Teoría de las Situaciones Didácticas de Brousseau (1986) tanto para el diseño como el
análisis suscitado por la situación didáctica diseñada para esta investigación y que está
centrada en el objeto matemático área y medida. Asimismo, hemos elegido como
referencial metodológico aspectos de la Ingeniería Didáctica de Artigue (1995) donde
analizaremos las fases que conforman su proceso experimental.
Para analizar los resultados obtenidos de la secuencia didáctica, confrontamos el análisis
a priori con el análisis posteriori para observar si los resultados fueron o no previstos
por el investigador. Esta forma de realizar el análisis nos permitió concluir que el
estudiante presenta dificultades para adaptar a su aprendizaje la manera de expresar la
suma de las medidas de las áreas de los rectángulos de aproximación como una adición
de términos.<br>This thesis aims to analyse the students learning process in the first term of their
Business Administration studies in a university from Lima, when working a didactic
sequence, regulated by GeoGebra, that leads them to modify and manipulate a flexible
procedure with rectangles that allows them to acquire the conception that they can
approximate, as much as they require, the measure of an area, limited under certain
conditions, and express such approximation as the addition of the measures of each one
of the rectangles areas.
Considering that students know geometry formulas and calculus procedures to obtain
the measure of polygonal areas, but they don’t know how to determine the measure of a
non-polygonal area or what procedure to use to approximate this measure, we plan to
answer, from our research, the following question: Will a didactic sequence, regulated
by GeoGebra, allow the articulation of the conception that students have regarding the
measurement of an area as a number associated to it calculated through geometry
formulas and a flexible procedure that allows to approximate that number as much as it
is required, and to express that approximation as an addition of terms?
For this research, we have selected as theoretical framework some aspects from the
Theory of Didactical Situations from Brousseau (1986), so much for the design as for
the analysis raised by the didactic situation designed for our research, and which is
focused on the mathematical object of area and measurement. Furthermore, we have
chosen as methodological framework aspects from the Didactic Engineering from
Artigue (1995), where we will analyse the phases that make up its experimental process.
To analyse the results of the didactic sequence, we faced the analysis carried out at first
with the subsequent analysis to observe whether or not the results were correctly
predicted by the researcher. This form of conducting the analysis allowed us to conclude
that the student presents difficulties in adapting the way of expressing the sum of the
areas of the approximation rectangles as an addition of terms to their learning process.<br>Tesis
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Lalaude-Labayle, Marc. "L'enseignement de l'algèbre linéaire au niveau universitaire : Analyse didactique et épistémologique." Thesis, Pau, 2016. http://www.theses.fr/2016PAUU3044/document.
Full textAbstract:
Notre recherche porte sur la question de l'enseignement de l'algèbre linéaire au niveau universitaire, plus précisément sur les applications linéaires en Classes Préparatoires aux Grandes Écoles. La théorie des situations didactiques avec la sémiotique de Peirce fournissent le cadre principal de nos travaux et nous permettent d'analyser les raisonnements produits par les étudiants en situation d'interrogation orale. Nous proposons dans un premier temps des éléments d'analyse épistémologique concernant le rôle des applications linéaires dans l'émergence de l'algèbre linéaire. Puis nous présentons dans une optique d'analyse didactique les principaux éléments de la sémiotique de Peirce et son algébrisation par le treillis des classes de signes. Nous complétons alors le modèle d'analyse des raisonnements de Bloch et Gibel et proposons un outil d'analyse sémiotique, le diagramme sémantique. Nous utilisons cet outil pour une analyse sémiotique locale a priori d'une situation mathématique. Cette analyse met en évidence le lien entre les premiers signes et premières actions de la situation et la sémiose qui en découle. Nous procédons ensuite à une analyse des raisonnements produits par des étudiants en situation d'interrogation orale, dite « classique ». Cette analyse confirme le lien entre l'absence de niveaux de milieu adidactiques et la difficulté sémantique d'organiser les objets en situation de preuve. Puis, nous expérimentons une situation d'interrogation orale de telle sorte que les niveaux de milieu adidactiques soient riches et stabilisés. L'analyse des raisonnements produits dans cette situation nous permet de montrer que les étudiants sollicitent un point de vue sémantique sur les objets utile lors de leurs validations et contrôles. Ces trois moments de notre travail confirment l'importance du discours et des pratiques heuristiques dans le cadre de l'algèbre linéaire<br>Our research is concerned with the teaching of linear algebra at the university level. More precisely, it focuses on the teaching of linear transformations in Classes Préparatoires aux Grandes Écoles. The theory of didactical situations, jointly with Peirce’s semiotics, constitute the main theoretical framework of our works and allow us to analyse student’s reasoning in situations of oral evaluation. Firstly, we put forward some epistemological aspects highlighting the links between linear transformations and the emergence of linear algebra. Then, with a didactical objective, we outline the main features of Perice’s semiotics and its algebraization with the treillis of sign’s categories. Hence, we can enhance the model of analysis for reasoning processes of Bloch and Gibel and build a tool for semiotic analysis called semantic diagram. We illustrate the use of this tool by conducting a local semiotic a priori analysis of a mathematical situation. This analysis highlight the link between the first signs and actions of the situation and the resulting semiosis. Next, we analyse some students’ reasonings produced during oral evaluations said « classical ». This analysis confirms the link between the lack of an adidactical milieu and the semantic difficulty to organize and articulate the objects and signs in a proof situation. Then we experiment a situation of oral evaluation in which the adidactical milieus are rich enough and stabilized. The analysis of the reasoning process conducted in this experimental situation allows us to show that, in this case, the students rely on a semantic point of view on the objects to produce their validations and controls their productions. These three different moments of our research attest the importance of the heuristic practices and discourse in the field of linear algebra
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Abdollahi, Shameem. "A single 9hr recovery sleep is sufficient for the restoration of neurocognitive function following 39hrs TSD /." Title page and abstract only, 2004. http://web4.library.adelaide.edu.au/theses/09SB/09sba1359.pdf.
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Mota, Marcus Vinicius Fagundes. "Pavimento de baixo volume de tráfego: estudo comparativo da vida útil estimada e após abertura ao tráfego." Programa de Pós-Graduação em Engenharia Geotécnica. Núcleo de Geotecnia, Escola de Minas, Universidade Federal de Ouro Preto, 2009. http://www.repositorio.ufop.br/handle/123456789/2353.
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Previous issue date: 2009<br>ABSTRACT: The objective of this dissertation is to define a criteria for the structural design to be adopted for Low-traffic Roads coated with Bituminous Double Surface Treatments, for which the estimated design life is 6 or 10 years. The study was developed through the evaluation of the service life of a road connecting the locations of Luisburgo and Ponte do Silva, LMG 838, selected among eighty roads included in a paving program by the government of the State of Minas Gerais, named “Programa de Pavimentação de Ligações e Acessos aos Municípios (PROACESSO)”. Non-destructive investigation methods were adopted, such as deflection measurements by Benkelman beam, Ground Penetrating Radar measurement of the pavement layers thickness and the mechanical characteristics of the materials were determined through back calculation of the layers’ moduli by RETRAN5-L back calculation program. The research program constituted a good means of analyzing the structural evaluation methods currently in use in Brazil and it can be concluded that the definition of a performance criteria and of a structural evaluation method for Low-traffic Roads should be considered according to the vertical stress and the normal compressive strain on top of the sub-grade, as well as the contribution for wheels footpaths sinking of all layers.<br>O objetivo desta dissertação é a definição de critérios de avaliação a serem aplicados em Rodovias de Baixo Volume de Tráfego (RBVT) pavimentados com revestimento em Tratamento Superficial Duplo (TSD) e cuja vida útil estimada em projeto é 6 ou 10 anos. O estudo foi desenvolvido através da avaliação da vida útil do trecho Luisburgo/Ponte do Silva da LMG 838, selecionado como estudo de caso entre oitenta rodovias pavimentadas em Minas Gerais no âmbito do Programa de Pavimentação de Ligações e Acessos aos Municípios (PROACESSO). Priorizou-se métodos não destrutivos de investigação, tais como o levantamento deflectométrico com viga Benkelman, o levantamento das espessuras das camadas que compõem a estrutura da rodovia com “Ground Penetrating Radar” (GPR) e as características mecânicas dos materiais foram determinadas por retroanálise através do Programa RETRAN5-L. A pesquisa permitiu uma análise em relação à aplicação dos métodos de avaliação estrutural utilizados no Brasil e pode-se concluir que a definição de critérios de desempenho e métodos de avaliação estrutural para RBVTs deverá se balizar pelo estudo da tensão vertical normal de compressão e no acúmulo das deformações permanentes no topo do subleito, bem como na contribuição para o Afundamento de Trilha de Rodas de todas as camadas. ______________________________________________________________________________________________________________________________________________________
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Santos, Luísa Assis dos. "TSD e perturbação de ajustamento. Relação entre experiência de vida na infância e funcionamento actual em crianças e adolescentes Angolanos." Master's thesis, Faculdade de Medicina da Universidade do Porto, 2008. http://hdl.handle.net/10216/21906.
Full textBooks on the topic "TSD"
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Bland, Samuel R. Interactive grid generation program for CAP-TSD. National Aeronautics and Space Administration, Langley Research Center, 1990.
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Bland, Samuel R. Suggestions for CAP-TSD and time-step input parameters. National Aeronautics and Space Administration, Langley Research Center, 1991.
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3
Bland, Samuel R. Suggestions for CAP-TSD and time-step input parameters. National Aeronautics and Space Administration, Langley Research Center, 1991.
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Bland, Samuel R. Suggestions for CAP-TSD and time-step input parameters. National Aeronautics and Space Administration, Langley Research Center, 1991.
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5
F, Mitterer Kent, and Langley Research Center, eds. Improving CPA-TSD steady pressure solutions through airfoil slope modification. National Aeronautics and Space Administration, Langley Research Center, 1996.
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F, Mitterer Kent, and Langley Research Center, eds. Improving CPA-TSD steady pressure solutions through airfoil slope modification. National Aeronautics and Space Administration, Langley Research Center, 1996.
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F, Mitterer Kent, and Langley Research Center, eds. Improving CPA-TSD steady pressure solutions through airfoil slope modification. National Aeronautics and Space Administration, Langley Research Center, 1996.
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8
T, Batina John, Cunningham Herbert J, and Langley Research Center, eds. Wing flutter calculations with the CAP-TSD unsteady transonic small disturbance program. National Aeronautics and Space Administration, Langley Research Center, 1988.
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1945-, Bennett Robert M., and Langley Research Center, eds. Investigation of the aeroelastic stability of the AFW wind-tunnel model using CAP-TSD. National Aeronautics and Space Administration, Langley Research Center, 1991.
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10
TSD, 2010 (2010 Brno Czech Republic). Text, speech and dialogue: 13th international conference, TSD 2010, Brno, Czech Republic, September 6-10, 2010 : proceedings. Springer, 2010.
Find full textBook chapters on the topic "TSD"
1
Fernandes, Pedro, and Rui M. Rocha. "TSD: Tiny Service Discovery." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-89524-4_40.
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Murray, J. D. "Temperature-Dependent Sex Determination (TSD): Crocodilian Survivorship." In Interdisciplinary Applied Mathematics. Springer New York, 1993. http://dx.doi.org/10.1007/978-0-387-22437-4_4.
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Bakule, R., J. Nedbal, and P. Strof. "THE STUDY OF CRYSTALLISATION BY TSD METHOD." In Morphology of Polymers, edited by Blahoslav Sedláček. De Gruyter, 1986. http://dx.doi.org/10.1515/9783110858150-014.
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Wilkins, Thomas S. "The US-Japan-Australia Trilateral Strategic Dialogue (TSD)." In Strategic Minilateralism and the Regional Security Architecture of the Indo-Pacific. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-4791-0_7.
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Azab, Abdulrahman, Eirik Haatveit, and Harri Hirvonsalo. "Secure B2SHARE: Metadata Publication and Secure Sharing of Sensitive Datasets." In Communications in Computer and Information Science. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-86240-3_13.
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Abstract Secure B2SHARE is a framework that enhances the original B2SHARE service to allow for the secure sharing and management of sensitive datasets while ensuring compliance with privacy and data security regulations. This paper explores the concept of Secure B2SHARE, its architecture, the user journey through the system, and compares it with existing solutions for sensitive data management. The implementation of Secure B2SHARE at the TSD and CSC instances is discussed, showcasing how sensitive data is managed securely through these infrastructures.
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Souza, Paulo Victor Sgobbi, Igor Braga Farias, Roberta Ismael Lacerda Machado, Wladimir Bocca Vieira de Rezende Pinto, and Acary Souza Bulle Oliveira. "Tay-Sachs Disease (TSD) and GM2 gangliosidosis, AB Variant." In Genetic Syndromes. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-319-66816-1_1798-1.
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Zhao, Xinyi, Yong Li, Rui Tian, and Yunli Chen. "DA-TSD: Double Attention Two-Stage 3D Object Detector from Point Clouds." In Artificial Neural Networks and Machine Learning – ICANN 2023. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-44207-0_28.
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Danzer, Graham S. "Therapists and Clients Agree on Most Aspects of TSD, But Not All." In Therapist Self-Disclosure. Routledge, 2018. http://dx.doi.org/10.4324/9780203730713-29.
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Zhang, Yanwen, Jing Chen, and Kai Hu. "Current Harmonic Suppression and Simulation Analysis of PMSM Based on TSD-DPCC." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-1852-1_33.
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Scavone, M., S. W. Katicha, and G. W. Flintsch. "Identifying weak joints in jointed concrete pavements from TSD measurements by basis pursuit." In Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields, Volume 1. CRC Press, 2021. http://dx.doi.org/10.1201/9781003222880-39.
Full textConference papers on the topic "TSD"
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Kong, Geng, and Qing Yu. "TSD-YOLOv5: A traffic sign recognition algorithm based on improved YOLOv5." In 2024 International Joint Conference on Neural Networks (IJCNN). IEEE, 2024. http://dx.doi.org/10.1109/ijcnn60899.2024.10650260.
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Nithiyananthan, Aathavan, Jathushan Raveendra, and Uthayasanker Thayasivam. "TSD: Towards Computational Processing of Tamil Similes - A Tamil Simile Dataset." In Proceedings of the Fifth Workshop on Speech, Vision, and Language Technologies for Dravidian Languages. Association for Computational Linguistics, 2025. https://doi.org/10.18653/v1/2025.dravidianlangtech-1.99.
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Li, Zhe, Zuchun Li, Jia Lu, Yimiao Zhang, and Peng Ye. "YOLO-TSD: A Recognition and Detection Method for Traffic Sign Based on YOLOv5." In 2024 IEEE 24th International Conference on Software Quality, Reliability, and Security Companion (QRS-C). IEEE, 2024. http://dx.doi.org/10.1109/qrs-c63300.2024.00149.
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SILVA, SUZANE NOGUEIRA DA, MATHEUS CHAGAS VITAL, CARLOS BRUNO DA SILVA FERNANDES, LUCAS CAVALCANTE DE ALMEIDA, and Francisco Heber Lacerda de Oliveira. "AVALIAÇÃO DA MACROTEXTURA EM REVESTIMENTOS ASFÁLTICOS DISTINTOS PELO MÉTODO DA MANCHA DE AREIA." In Anais da 49ª Reunião Anual de Pavimentação - RAPv. Even3, 2024. http://dx.doi.org/10.29327/1430212.49-90.
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Os pavimentos rodoviários são essenciais para garantir uma trafegabilidade confortável e segura em todas as condições. A superfície do pavimento é fundamental na interação entre veículos e infraestrutura rodoviária, influenciando diretamente no conforto ao rolamento. Dentre as características superficiais, a macrotextura se destaca como um parâmetro importante no desempenho das rodovias, afetando diretamente a drenabilidade, o ruído e a resistência à derrapagem. Este estudo analisou a macrotextura, utilizando o método da mancha de areia, em três misturas asfálticas distintas aplicadas nas rodovias BR-122, CE-513 e CE-580 em Quixadá, Ceará. As vias selecionadas apresentam idades e tipos de revestimento asfáltico distintos, incluindo Concreto Asfáltico (CA), Areia Asfalto Usinada à Frio (AAUF) e Tratamento Superficial Duplo (TSD). Os resultados obtidos constataram que os segmentos estudados possuem macrotexturas muito abertas, não atendendo aos padrões recomendados pelo Departamento Nacional de Infraestrutura de Transportes (DNIT). Diante disso, o estudo destaca a importância da manutenção nos revestimentos existentes para assegurar que os pavimentos permaneçam dentro dos padrões normativos, visando não apenas a segurança dos usuários, mas também a durabilidade da infraestrutura rodoviária.
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Knudsen, Ole Øystein, George Clapp, Jan Van Bokhorst, and Graeme Duncan. "Corrosion of Cathodically Polarized TSA in Subsea Mud at High Temperature." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4196.
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Abstract Thermally sprayed aluminium (TSA) is not immune to corrosion when polarized by sacrificial aluminium anodes. However, the corrosion rate is usually rather low due to a protecting surface oxide on the TSA, keeping the TSA passive. A certain cathodic reaction rate is found on the TSA, producing hydroxide. This hydroxide is a potential threat to the TSA, since aluminium is not passive in alkaline environments. When the TSA is exposed to seawater the hydroxide may be transported away from the TSA surface by diffusion and convection, and the pH is maintained within the passive range. However, in mud there is no convection and the diffusion is limited. This may result in accumulation of hydroxide at the TSA-mud interface and activation of the TSA. The cathodic polarization may therefore result in decreased lifetime of the TSA in mud. The paper discusses corrosion rate of TSA as function of cathodic polarization and temperature, when exposed in subsea mud.
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Knudsen, Ole Øystein, Heidi Askestad, Rodgeir Aanesen, and Vincent Gregoire. "Repair Coatings for TSA." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09369.
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Abstract Thermally sprayed aluminium (TSA) has successfully been used for corrosion protection for several decades. Coating lifetimes of more than 30 years in corrosive marine atmosphere has been documented. However, it has also been found that coating TSA with thick, protective organic coatings may result in rapid corrosion of the TSA and very short lifetimes. A corrosion mechanism resembling crevice corrosion is causing the degradation. The problem is avoided by not covering TSA with thick organic coatings. However, in many situations it is difficult to avoid coating the TSA. E.g. when repairing damages in the TSA in the field, the repair coating often overlaps with the surrounding TSA. Hence, a repair coating that can protect steel, but not trigger the crevice corrosion mechanism when applied on the TSA is needed. In this investigation different repair coatings have been studied with respect to performance when applied on both TSA and bare steel. Coatings have been selected based on four different hypotheses: (i) coatings that can buffer the low pH developed in the corrosion of TSA, (ii) open coatings that can let the acidic environment be washed out and (iii) conductive coatings that can make electrochemical reactions take place outside the TSA/coating crevice and (iv) sacrificial coatings. A number of coatings have been selected for testing with this in mind and tested in the ISO 20340 cyclic ageing test.
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Houben, John, Brian Fitzgerald, Stefan Winnik, Keith Chustz, and Michael Surkein. "Deployment of CUI Prevention Strategies and TSA Implementation in Projects." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01100.
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Abstract Thermal spray aluminum (TSA) coating provides a more durable protection and is recognized as Best in Class for corrosion under insulation (CUI) prevention. This document captures the key components required to get TSA installed by material engineering, project design and execution. These execution details apply to any TSA and insulation system installation whether it is a new construction project or in-plant maintenance project. CUI is typically a high maintenance cost item for fixed equipment in the petrochemical industry. Historically, conventional coatings were used for CUI prevention; however these coatings generally have limited life. The materials/corrosion engineer (MCE), with TSA know-how, has a crucial role to play during the deployment of TSA in new plant designs and construction. The MCE should provide guidance and support during the project's Front-End Engineering and Design stage and during the implementation of the facility's CUI prevention strategy. Equipment design details and insulation details may need changes to reduce the likelihood of water ingress into insulation and enable good surface preparation. Guidance and hands-on support by MCE, with TSA know-how, should be considered for contractors and equipment suppliers without prior experience with TSA. This work process results in a higher quality TSA implementation and on-time project completion.
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Góis, Francisco Nauber B., Pedro Porfírio Muniz Farias, and Rafael Braga Oliveira. "Test Script Diagram – Um modelo para geração de scripts de testes." In Simpósio Brasileiro de Qualidade de Software. Sociedade Brasileira de Computação - SBC, 2010. http://dx.doi.org/10.5753/sbqs.2010.15422.
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Este artigo descreve e apresenta as especificações do Test Script Diagram (TSD). Cada TSD é um modelo para geração de scripts de testes que utiliza como insumo casos de uso e associa a eles dados de testes agrupados em classes de equivalência. Para auxiliar a elaboração dos TSDs e automatizar a geração dos scripts de testes, foi construída uma ferramenta denominada TestKase. Este artigo apresenta também resultados da utilização do TSD, construídos com o auxílio do Testkase, em 66 sistemas. O TSD pode ser utilizado após a elicitação de requisitos em paralelo com outras fases do desenvolvimento do sistema.
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Charpentier, Bertrand, and Thomas Bonald. "Tree Sampling Divergence: An Information-Theoretic Metric for Hierarchical Graph Clustering." In Twenty-Eighth International Joint Conference on Artificial Intelligence {IJCAI-19}. International Joint Conferences on Artificial Intelligence Organization, 2019. http://dx.doi.org/10.24963/ijcai.2019/286.
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We introduce the tree sampling divergence (TSD), an information-theoretic metric for assessing the quality of the hierarchical clustering of a graph. Any hierarchical clustering of a graph can be represented as a tree whose nodes correspond to clusters of the graph. The TSD is the Kullback-Leibler divergence between two probability distributions over the nodes of this tree: those induced respectively by sampling at random edges and node pairs of the graph. A fundamental property of the proposed metric is that it is interpretable in terms of graph reconstruction. Specifically, it quantifies the ability to reconstruct the graph from the tree in terms of information loss. In particular, the TSD is maximum when perfect reconstruction is feasible, i.e., when the graph has a complete hierarchical structure. Another key property of TSD is that it applies to any tree, not necessarily binary. In particular, the TSD can be used to compress a binary tree while minimizing the information loss in terms of graph reconstruction, so as to get a compact representation of the hierarchical structure of a graph. We illustrate the behavior of TSD compared to existing metrics on experiments based on both synthetic and real datasets.
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Love, Shayne, and Trevor C. Haskett. "Full-Scale Performance Evaluation of Structure-Dynamic Vibration Absorber Systems." In IABSE Congress, New York, New York 2019: The Evolving Metropolis. International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.0357.
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<p>Modern tall buildings are often susceptible to excessive wind-induced motion, which can cause occupant discomfort and decrease component longevity. Increasing the effective damping of these buildings using a dynamic vibration absorber (DVA) is often the preferred option to decrease motion, especially for serviceability-level performance. A tuned mass damper (TMD) is one form of DVA that consists of a steel or concrete mass that is supported near the top of the building. A tuned sloshing damper (TSD) is another type of DVA that consists of a tank that is partially filled with water and located near the top of the tower. In both cases, when the building moves during a wind event, the motion of the TMD mass or sloshing TSD water lags behind the motion of the structure. A properly designed DVA thereby produces forces that continually oppose the tower’s motion, substantially reducing its response. Although numerous DVAs have been installed worldwide, very little reporting has been published on the full-scale performance of the damping systems. This paper will present the results of measurements conducted on several tall buildings equipped with DVAs. The measured results are compared to theoretical predictions to evaluate performance.</p>
Reports on the topic "TSD"
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Nguyen, S. N. TSD Dose and X/Q calculation. Office of Scientific and Technical Information (OSTI), 2020. http://dx.doi.org/10.2172/1617282.
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Miskho, A. G. Listed waste history at Hanford facility TSD units. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/341253.
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Beam, T. G. B Plant treatment, storage, and disposal (TSD) units inspection plan. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/10148275.
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Pfingston, M., J. Arnish, D. LePoire, and S. Y. Chen. TSD-DOSE: A radiological dose assessment model for treatment, storage, and disposal facilities. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/750795.
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Saueressig, D. G. Hanford facility dangerous waste Part A, Form 3 and Part B permit application documentation, Central Waste Complex (WA7890008967)(TSD: TS-2-4). Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/353309.
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Stewart, J. L. TSR Writers` Guide. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/362582.
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Gavrila, Serban I. FS-TST 2.0:. National Institute of Standards and Technology, 2005. http://dx.doi.org/10.6028/nist.ir.7297-b.
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Gavrila, Serban I. FS-TST 2.0 :. National Institute of Standards and Technology, 2005. http://dx.doi.org/10.6028/nist.ir.7297a.
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Gavrila, Serban I. FS-TST 2.0 :. National Institute of Standards and Technology, 2005. http://dx.doi.org/10.6028/nist.ir.7297b.
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Black, Paul E. FS-TST 2.0 :. National Institute of Standards and Technology, 2006. http://dx.doi.org/10.6028/nist.ir.7297c.
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