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Dissertations / Theses on the topic 'Creep factor'

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1

Madhi, Elhoucine. "In-Situ Creep Monitoring Using Directional Potential Drop Sensors." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1288378941.

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2

Zouhar, Michal. "Deformačně napěťová analýza a hodnocení mezních stavů částí tlustostěnného potrubí v oblasti creepu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228762.

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This thesis deals with the stress-strain analysis of thick-walled pipe parts. The dimension series (characterized by the D/d ratio) of three components are solved, then a direct tube, a torus with constant wall thickness (arcus) and a torus with variable wall thickness (bend). At first, the internal pressure amount, when a fully plastic state for these components is created, is solved. The amount of the limit pressure is determined analytically, numerically and by appropriate normative relations. The results and stress diagrams of individual solutions are mutually compared. Furthermore, these
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3

Luky, Robin. "Predikce creepového poškození polymerních trubek." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230310.

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A new methodology of polymer pipe lifetime estimation taking into account residual stresses is described in this thesis. Engineering equations derived based on numerical simulations of a hydrostatic pressure test are proposed. Residual lifetime calculations were performed for different loading conditions using experimental data of a creep crack propagation in studied material and stress distribution in the pipe wall. The effects which significantly influence lifetime estimation were quantified with special focus on residual stresses.
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4

Lee, Herng-Fu. "Factors affecting the creep feeding behaviour of suckling piglets." Thesis, University of Edinburgh, 2001. http://hdl.handle.net/1842/28414.

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Five experiments were designed to investigate factors affecting the creep feeding of suckling piglets and a preliminary method to monitor the creep feeding of suckling piglets was developed. In experiment 1, neonatal viability and creep feeding behaviour on d 14-15 were monitored. Birth weight rather than birth order affected the neonatal viability in terms of cumulative suck number (<i>P</i>< 0.01). The lighter piglets at birth went to contact the feeder faster (<i>P</i>< 0.10), but tended to touch the food slower (<i>P</i>< 0.10) on dl4 when creep food was introduced. Neither birth weight or
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5

Horsák, Libor. "Optimalizace tvaru háků v pecích petrochemického průmyslu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-228912.

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Master’s thesis, „Optimization of hanger design in petrochemical industry heaters”, describes a procedure and means, leading to better hanger design in various cases. The thesis describes several problems which are necessary to be solved in hanger design. Technical expertise is executed on hangers of various designs. The procedure of optimization is shown on one chosen hanger design.
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6

Hsiao, Yu-Hsian. "Factors affecting creep damage accumulation and mechanical properties of 316 stainless steel weldments /." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487849377292843.

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7

Drummer, Kadene Sue. "A Chippewa Cree students' college experience: factors affecting persistence." Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/drummer/DrummerK0509.pdf.

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Educators working with Chippewa Cree students need to understand how the students' precollege experiences, college experiences, and cultural backgrounds influence their success in higher education in order to design learning environments, procedures, and policies that will increase the graduation rate of this population. The purpose of this grounded theory study was to explore factors that help or hinder successful completion of a bachelor's degree by students from the Chippewa Cree Tribe. Data was collected in face-to-face interviews using a peer-reviewed interview protocol consisting of open
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8

Carpenter, Evan S. "Identifying Cultural and Non-cultural Factors Affecting Litter Patterns in Hickory Creek, Texas." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc699896/.

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Plastic deposition in hydrological systems is a pervasive problem at all geographic scales from loci of pollution to global ocean circulation. Much attention has been devoted to plastic deposition in marine contexts, but little is known about inputs of plastics into local hydrological systems, such as streams. Any attempt to prevent plastic litter must confront people’s behaviors, so archaeological concepts are used to distinguish between various cultural inputs (e.g., littering) and non-cultural forces (e.g., stream transport) that affect litter patterns on the landscape. Litter surveys along
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9

Ray, Bradley A. "Factors affecting largemouth bass recruitment in a trophy bass reservoir of Virginia, Briery Creek Lake." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/28724.

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Briery Creek Lake (BCL) has low abundance of young largemouth bass (LMB) compared to Sandy River Reservoir (SRR), which could jeopardize the trophy-LMB management goal in BCL. I assessed factors that may limit recruitment of LMB in BCL: angling, predation, competition, growth, and food availability. Age-0 LMB were monitored from nesting through their first summer with nest surveys, light traps, and electrofishing. Nesting success was higher in BCL (53%) than SRR (31%). Initial light trap catch-per-unit-effort (CPUE) was higher in BCL than SRR but, by July, light trap and electrofishing CPUE wa
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10

Gonzalez, Nicolas Alejandro. "Principal Components Analysis, Factor Analysis and Trend Correlations of Twenty-Eight Years of Water Quality Data of Deer Creek Reservoir, Utah." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3309.

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I evaluated twenty-eight years (1980-2007) of spatial-temporal water quality data from Deer Creek Reservoir in Utah. The data came from three sampling points representing the lotic, transitional and lentic zones. The data included measurements of climatological, hydrological and water quality conditions at four depths; Surface, Above Thermocline, Below Thermocline and Bottom. The time frame spanned dates before and after the completion of the Jordanelle Reservoir (1987-1992), approximately fourteen miles upstream of Deer Creek. I compared temporal groupings and found that a traditional month d
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11

Burnett, Paul. "Factors Affecting Spawning and Survival of Bear Lake Bonneville Cutthroat Trout in St. Charles Creek, Idaho." DigitalCommons@USU, 2003. https://digitalcommons.usu.edu/etd/4434.

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I described the spawning ecology of the Bear Lake Bonneville cutthroat trout (BLBCT) in St. Charles Creek. I tracked cutthroat trout with used radio telemetry. I conducted redd counts to describe spawning conditions. Most cutthroat trout in the Big Arm strayed into the Bear River. Cutthroat trout migrations in the Little Arm and main fork were very limited (<4 km). Redd distributions showed very similar patterns between 1989, 2000 and 2001 with most redds being built in the lowest kilometer of stream. Artificial fish transportation changed the redd distribution in 2002. More redds were built i
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12

Maberley, David A. L. "An assessment of risk factors for diabetic retinopathy in the Cree population of James Bay." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0007/MQ28226.pdf.

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13

Whitman, Heather L. "Effects of Adjacent Land-use Practices and Environmental Factors on Riparian Vegetation and Water Quality in the Sugar Creek Watershed, Northeastern Ohio." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1250568833.

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14

Bamwine, Patrick. "Factors that influence the farmers' perceived usefulness of information for conservation decisions in the Darby Creek watershed /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487947908402453.

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15

Allison, John Bryan. "Characterization of sediment movement in tidal creeks adjacent to the gulf intracoastal waterway at Aransas National Wildlife Refuge, Austwell, TX: study of natural factors and effects of barge-induced drawdown currents." Thesis, Texas A&M University, 2005. http://hdl.handle.net/1969.1/2347.

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The coastal wetlands at Aransas National Wildlife Refuge near Austwell, Texas, support the last migrating population of whooping cranes during the winter months (October through April). With a population currently at 216 individuals, these are the rarest cranes in the world. The wetlands in which they winter are a part of the San Antonio Bay system, a bay that receives constant fresh water flow from the Guadalupe River. Currently there is a plan for using water diverted from the Guadalupe River just before it enters San Antonio Bay as a water supply for the greater San Antonio metropolitan are
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16

Bey, Clarissa Rachel. "Scale-Dependent Environmental Influences on Linked Mussel-Fish Assemblages in Big Darby Creek, OH." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1376918254.

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17

Burck, Michael Theodore. "MAPPING RIPARIAN BUFFER ZONES IN CYPRESS CREEK REFUGE, ILLINOIS: LAND USE CHANGE IMPACT ON HABITAT USAGE FROM 1984-2014: PASSERINE PRESENCE AND CLASSIFICATION COMPARISONS." OpenSIUC, 2017. https://opensiuc.lib.siu.edu/theses/2229.

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In response to recent declines, forested riparian wetland areas have become an increased conservation and management area of concern focusing on increasing biodiversity and promoting healthy ecosystem services. Additionally, passerine birds have also experienced a sharp global decline in that associated habitat. To mitigate further declines of both habitat and species numbers government programs and agencies have intensified conservation efforts. However, the practices employed are often assumed to be beneficial without conducting dedicated surveys to measure efficacy and practicality of cu
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18

Tucker, Mark Alan. "The influence of social-learning factors on farm operators' perceptions of agricultural-chemical risk in the Ohio Darby Creek hydrologic unit." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1239623499.

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19

Tucker, Mark A. "The influence of social-learning factors on farm operators' perceptions of agricultural-chemical risk in the Ohio Darby Creek hydrologic unit /." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487929230739381.

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20

Bray, Robert. "Factors underlying differential ecosystem recovery from acidfiication of upland waters in the river Cree catchment area, Dumfries and Galloway, Scotland." Thesis, University of Strathclyde, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.502342.

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Acid Rain, or more correctly Acid Deposition, has been responsible for widespread damage to forests and to aquatic ecosystems, causing ecological simplification, the loss of acid-sensitive species and a reduction in biodiversity. Although major international agreements have succeeded in reducing acid deposition in Europe and North America, overall global emissions of acidifying pollutants continues to increase. Even in regions where the emissions have fallen substantially, biological recovery of many waters has been slower and more uneven than chemical recovery. In Scotland, the Galloway hills
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21

Nadolski, Benjamin Keith. "Movement Patterns and Multi-Scale Factors That Influence Exotic Brook Trout And Endemic Bonneville Cutthroat Trout Distribution And Abundance In The Mill Creek Drainage, Utah." DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/25.

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Introduced brook trout (Salvelinus fontinalis) are implicated as a primary factor leading to the decline in distribution and abundance of native cutthroat trout (Oncorhynchus clarkii). However, not all introductions are successful, suggesting local conditions influence the success of invasions. Therefore, I sought to determine the multi-scale factor(s) that influence brook trouts’ invasion success of native Bonneville cutthroat trout (Oncorhynchus clarkii utah) habitats in Mill Creek, Utah. I conducted patch occupancy surveys to determine watershed-scale brook trout and cutthroat trout distrib
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22

Zhang, Wang. "Contribution à l'étude expérimentale du comportement mécanique des argilites du Callovo-Oxfordien : effets du chemin de chargement et de la température." Thesis, Université de Lille (2018-2021), 2021. https://pepite-depot.univ-lille.fr/ToutIDP/EDENGSYS/2021/2021LILUN037.pdf.

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Les argilites du Callovo-Oxfordien (COx) sont étudiées depuis plusieurs décennies en France dans le contexte du stockage géologique des déchets radioactifs. Un grand nombre d'essais en laboratoire et d'expériences in-situ ont été réalisés pour la caractérisation du comportement thermo-hydromécanique à court et long terme ainsi que des propriétés de diffusion de gaz de cette roche argileuse. Cependant, certains aspects nécessitent encore des études complémentaires, entre autres, les effets du chemin de chargement et de la température sur les réponses mécaniques à court et long terme. Cette thès
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23

West, Neil E. "Factors affecting creep in gold on silicon bi-layer MEMS cantilevered beams." 2003. http://hdl.handle.net/10945/11038.

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This research identifies factors that contribute to creep in bi-layer gold on polysilicon MEMS beams. Beams used in this research were manufactured using the Multi-User MEMS Process (MUMPs). Their thicknesses were 2(micrometer) or 4(micrometers) (O.5(micrometers) gold on either 1.5(micrometers) or 3.5(micrometers) polysilicon), these beams were all 20(micrometers) wide and ranged in length from 80(micrometers) to 280(micrometers) in increments of 40(micrometers). Numerous thermal cycling tests and isothermal hold experiments were conducted at various temperatures. Initial thermal cycling took
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24

Drummer, Kadene Sue. "A Chippewa Cree student's college experience factors affecting persistence /." 2009. http://etd.lib.montana.edu/etd/2009/drummer/DrummerK0509.pdf.

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25

Kerezsi, Brian 1973. "Factors affecting crack growth in carbon steel due to repeated thermal shock from temperatures below the creep range." 2001. http://arrow.monash.edu.au/hdl/1959.1/9216.

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26

Lai, Song-Cing, and 賴松慶. "Study of the Relationship among Fish Composition, Water Quality and Hydrological Factor on the Tou-Bian-Keng Creek." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/71646431894213415247.

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碩士<br>國立中興大學<br>水土保持學系所<br>98<br>Base on field survey data of fish on Tou-Bian-Keng creek, Taichung from 2004 to 2009, the fish types has been classified into attributes of aqua- habitat, body length and water pollution resistance to identify the correlation between fish composition and factors of aquatic habitat environment. The investigations take quarterly of totally 21 from 2004 to 2009 on the Tou-Bian-Keng creek, Taichung. Chi-square and Pearson correlation test has been used to explore the relationship between fish, water quality and hydrology. The correlation analysis results has illus
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27

Wang, Hung-Yu, and 汪鴻玉. "Effects of environmental factors, disturbance, and grazing of fish on the succession of algal communities in Hapen Creek." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/36410373671903210222.

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碩士<br>國立臺灣大學<br>動物學研究所<br>91<br>A study on the interaction between environmental factors and algal communities in Hapen Creek was conducted from March 2002 to March 2003. Six study sites, including lotic and lentic habitats, were chosen. A total of 38 diatom species, 11 of cyanobacteria, and 7 of green algae were identified from these sites. The results of PCA ordination showed that higher correlation coefficients were obtained between the algal communities and those variables such as current velocity, depth, DO, conductivity, and nitrate, suggesting that these variables should have played mor
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28

Nickels, Bret. "The perceived factors affecting the survival of traditional moose skin preparation procedures by the Nelson House Rocky Cree." 2009. http://hdl.handle.net/1993/3746.

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This study describes historical and contemporary Rocky Cree skin preparation procedures used for moccasin production and articulates the difficulties and prospects of maintaining traditional approaches to moose skin preparation procedures by the inhabitants of Nelson House, Manitoba. The research involves the analysis of the various socioeconomic and environmental factors which impact the maintenance and development of a sustainable traditional moccasin economy. The objectives of this study are to identify and describe the various steps involved in the moose skin preparation process, and then
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29

Hebert, Laura Caroline. ""In Search of Deer": A historical ecological perspective on caribou in northern Manitoba in the context of Cree use." 2015. http://hdl.handle.net/1993/30343.

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Caribou have a longstanding cultural and environmental role, and have interacted with human groups across time. This thesis is a consideration of these interactions, exploring prehistoric and historic patterns of caribou usage by Cree people in northern Manitoba. Through zooarchaeological analysis, an ethnohistorical review, and community workshops and interviews with York Factory First Nation, the relationship between caribou populations and Cree use is illustrated, providing insight into abundance, movements, and the socio-cultural value of caribou over time. In doing so, context is provided
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30

Chang, Lit, and 張力仁. "Effect of Topographic Factors on the Occurrence of Debris Flow--Take the Chen-yu-lan Creek Watershed as an Example." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/12594567527899171460.

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碩士<br>國立中興大學<br>水土保持學系<br>88<br>Due to steep topography, weak geology, and improper land use, debris flow occurs frequently at the mountain areas where people suffer the disaster of debris flow during the typhoon seasons. A case of Chen-yu-lan Creek watershed hit by the typhoon Herb was selected to study the topographic factors on the occurrence of debris flow. The sites located at the intersections of road and stream are the major places to access the debris flow analysis. Digital terrain model couples with GIS and RS technologies to extract watershed information. Princi
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31

Gao, Yu-Ding, and 高玉錠. "The study of risk factors and evaluation criterias of slope disaster on Nan-Shih Creek Watershed by using Geographic Information System." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/67271512582291503010.

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碩士<br>華梵大學<br>環境與防災設計學系碩士班<br>94<br>The Nan-Shih Creek watershed is all located in the Wu-Lie Village of Taipei County. This village was prospering in tourism business due to a plenty of hot spring. Therefore, the stability of sloping land definitely concerned with the locals and tourists. It’s really helpful in terms of the security of the area to sort out sensitive land from the watershed in advance. As to the dangerous value method has been widely applied to the potential analysis of vulnerable landslide. Due to the dangerous value method cannot objectively define the classification of thre
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32

Gillen, John (Jake) Spencer. "An ecological study of the landscape, perennial plants and soils of the cooper creek floodplain, South Australia." Phd thesis, 2010. http://hdl.handle.net/1885/111996.

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This study presents a quantitative account of vegetation-soil relationships for the perennial vegetation of the Cooper Creek floodplain, in South Australia. Cooper Creek is an internationally significant and increasingly rare example of one of a naturally functioning, unregulated, dryland river system both nationally and internationally. The area for this study is delineated by the boundaries of the Ramsar listed Coongie Lakes wetland complex. This is a region of unique ecological significance: a highly biologically productive floodplain system with
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33

DELCHIARO, MICHELE. "Time-dependent rock-mass deformations, geological aging and landscape evolution as predisposing factors for large rock landslide triggering." Doctoral thesis, 2021. http://hdl.handle.net/11573/1512863.

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Le deformazioni di versante tempo-dipendenti sono solitamente connesse al processo Mass Rock Creep (MRC) che agisce su una grande scala spazio-temporale attraverso una variazione continua e non lineare dello stato tenso-deformativo di intere porzioni di versante. Inoltre è fortemente condizionato dalla tettonica e dall'evoluzione della rete di drenaggio. Infatti, sia il sollevamento che l'evoluzione morfologica permettono lo svincolo cinematico di porzioni di versante isolando un carapace di ammasso roccioso che inizia a deformarsi per processo di MRC fino al collasso. Il limite di questi sch
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