Academic literature on the topic 'Surface Area Analyzer'

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Journal articles on the topic "Surface Area Analyzer"

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Rallan, Chandni, Aaron Akah, Patrick Hill, and Arthur Garforth. "Growth of Hierarchically Structured High-Surface Area Alumina on FeCrAl Alloy Wires." Indian Journal of Materials Science 2013 (December 11, 2013): 1–7. http://dx.doi.org/10.1155/2013/251495.

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The formation of metastable alumina phases due to the oxidation of commercial FeCrAl alloy wires (0.5 mm thickness) at various temperatures and time periods has been examined. Samples were isothermally oxidised in air using a thermogravimetric analyzer (TGA). The morphology of the oxidised samples was analyzed using an Electronic Scanning Electron Microscope (ESEM) and X-ray on the surface analysis was done using an Energy Dispersive X-Ray (EDX) analyzer. The technique of X-Ray Diffraction (XRD) was used to characterize the phase of the oxide growth. The entire study showed that it was possibl
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MURAKOSHI, Yoshiaki. "The Surface Area, Pore Size Distribution Analyzer by CARLO ERBA." RESOURCES PROCESSING 38, no. 3 (1991): 144–46. http://dx.doi.org/10.4144/rpsj1986.38.144.

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KODAMA, H., M. JAAKKIMAINEN, and R. DUCOURNEAU. "A MULTI-SAMPLE HOLDER ASSEMBLY FOR THE QUANTASORB® SURFACE AREA ANALYZER." Canadian Journal of Soil Science 67, no. 3 (1987): 709–13. http://dx.doi.org/10.4141/cjss87-069.

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An inexpensive and simple multi-sample holder assembly was designed and constructed for the Quantasorb® surface area analyzer which is based on the BET gas adsorption isotherm principle. Four sample holder U-tubes were connected in parallel in order to maintain all samples equidistant from the detector. This arrangement keeps high gas detection sensitivity and minimizes the occurrence of unwanted turbulent gas flows in the system. The system was tested by measuring surface areas of reference standard samples. Excellent agreement was obtained. Key words: BET method, gas adsorption, gas flow syt
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Ji, Ying Lu, Hui Ping Song, Fang Qin Cheng, Nan Zheng, and Xu Ming Wang. "Study of Solid Amine CO2 Sorbents Based on the Modified Fly Ash." Applied Mechanics and Materials 448-453 (October 2013): 174–77. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.174.

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In this paper, coal fly ash was modified by the hydrothermal synthesis method based on sodium hydroxide solution, and then was macerated by ethanol amine. Then we obtained the solid amine adsorbents used to absorb CO2. The modified fly ash was investigated by scanning electron microscope (SEM) and the specific surface area analyzer (BET) for the microstructure and specific surface area. Then, the solid CO2 adsorbent was analyzed by fourier transform infrared spectrometer (FT-IR) and thermal analyzer (TGA) in CO2 atmosphere. Results showed that modified fly ash generated many kinds of zeolite m
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Luo, Zhi Qiang, and Jian Qiao Du. "Influence of Surface Properties on the Viscosity of Titanium Dioxide Slurry." Advanced Materials Research 503-504 (April 2012): 516–19. http://dx.doi.org/10.4028/www.scientific.net/amr.503-504.516.

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The influence of surface properties, including fineness, total pore volume, specific surface area and zeta potential on viscosity of TiO2 slurry were studied. The viscosity and these surface properties of TiO2 samples were respectively measured by viscometer, standard sieve, specific surface area analyzer, particle size analyzer. The results show that with increase of fineness and absolute value of zeta potential, the viscosity of TiO2 slurry decrease gradually, but with increase of total pore volume and specific surface area, the viscosity of TiO2 slurry also increase. The suitable conditions
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Li, Dan Xi, and Quan Xiao Liu. "Characterization of Mercerized Straw Pulp Fiber." Advanced Materials Research 1030-1032 (September 2014): 450–53. http://dx.doi.org/10.4028/www.scientific.net/amr.1030-1032.450.

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On the base of the former research of mercerization of pulp fibers, SEM, XRD and Automated Surface Area & Pore Size Analyzer were used to characterize surface morphology, crystalline property, and specific surface area and the pore size distribution of fibers. The results show that the fiber cell wall swelling, degree of crystallinity decrease and specific surface area and pore size distribution increase after mercerization.
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Liu, Quan Xiao, and Dan Xi Li. "Study on Properties of Ultrasonication Treated Pulp Fiber." Applied Mechanics and Materials 633-634 (September 2014): 451–54. http://dx.doi.org/10.4028/www.scientific.net/amm.633-634.451.

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SEM and Automated Surface Area & Pore Size Analyzer were used to characterize surface morphology and specific surface area and the pore size distribution of fibers. The results showed that specific surface area and pore size distribution increase after ultrasonication. The ash content of the composites of ultrasonic treated fiber is larger than the untreated fiber, and the magnetic properties show a good superparamagnetic behavior.
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Hartmann, Susan, Heike Wex, Tina Clauss, et al. "Immersion Freezing of Kaolinite: Scaling with Particle Surface Area." Journal of the Atmospheric Sciences 73, no. 1 (2015): 263–78. http://dx.doi.org/10.1175/jas-d-15-0057.1.

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Abstract This study presents an analysis showing that the freezing probability of kaolinite particles from Fluka scales exponentially with particle surface area for different atmospherically relevant particle sizes. Immersion freezing experiments were performed at the Leipzig Aerosol Cloud Interaction Simulator (LACIS). Size-selected kaolinite particles with mobility diameters of 300, 700, and 1000 nm were analyzed with one particle per droplet. First, it is demonstrated that immersion freezing is independent of the droplet volume. Using the mobility analyzer technique for size selection invol
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Liu, Lan, Yan Xue, Xiao Ming Ren, and Rui Zhen Xie. "Influence of Electrochemical Etching Parameters on Morphology of Porous Silicon." Advanced Materials Research 1055 (November 2014): 68–72. http://dx.doi.org/10.4028/www.scientific.net/amr.1055.68.

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In order to protect porous silicon from break and enhance it’s porosity and specific surface area, porous silicon is prepared with electrochemical etching method. The charateristic of porous silicon is investigated with SEM and high-speed adsorption surface area and porosity analyzer. The results show that the porous silicon prepared with the method of gradient etching and control of etching time is mechanically stable. The porosity and specfic surface area are improved.
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Wan Mahmood, Wan Norasiah, Rusnah Samsuddin, and Raja Razuan Raja Deris. "Chemical Activation of Durian Shell Activated Carbon: Effects of Activation Agents." Advanced Materials Research 1113 (July 2015): 242–47. http://dx.doi.org/10.4028/www.scientific.net/amr.1113.242.

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Selection of suitable activation agent is important in order to produce high surface area of activated carbon. The present study was undertaken to develop high surface area of durian shell activated carbon (DSAC) using different chemical activation agents which were potassium hydroxide (KOH) and phosphoric acid (H3PO4). Surface porosity and surface area were directly measured from scanning electron microscopy (SEM) and surface area analyzer, respectively. For the optimum condition, it showed that H3PO4 treated DSAC had the highest surface area which was 257.50 m2/g compared to KOH treated DSAC
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Dissertations / Theses on the topic "Surface Area Analyzer"

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Monterrosa, Oscar E. "Comparison of TAMS/RT surface wind, temperature, and pressure fields with surface observations and model analyses in the socal (sic social) area." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1999. http://handle.dtic.mil/100.2/ADA374302.

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Thesis (M.S. in Meteorology and Physical Oceanography) Naval Postgraduate School, December 1999.<br>"December 1999". Thesis advisor(s): Wendell A. Nuss. Includes bibliographical references (p. 69-70). Also available online.
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Carmagnola, Carlo Maria. "Mesure, analyse et modélisation des processus physiques du manteau neigeux sec." Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-01070005.

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La neige est un matériau poreux dont la microstructure change en permanence. L'ensemble de ces transformations, qui prend le nom de ''métamorphisme", est susceptible d'affecter les propriétés thermiques, mécaniques et électromagnétiques de la neige au niveau macroscopique. En particulier, les échanges d'énergie et de matière à l'intérieur du manteau neigeux et entre la neige et l'atmosphère sont fortement influencés par l'évolution au cours du temps de la microstructure de la neige. Une représentation adéquate du métamorphisme dans les modèles de manteau neigeux s'avère donc cruciale. La micro
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Carmagnola, Carlo Maria. "Mesure, analyse et modélisation des processus physiques du manteau neigeux sec Implementation and evaluation of prognostic representations of the optical diameter of snow in the SURFEX/ISBA-Crocus detailed snowpack model Snow spectral albedo at Summit, Greenland: measurements and numerical simulations based on physical and chemical properties of the snowpack." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENU014.

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La neige est un matériau poreux dont la microstructure change en permanence. L'ensemble de ces transformations, qui prend le nom de ``métamorphisme", est susceptible d'affecter les propriétés thermiques, mécaniques et électromagnétiques de la neige au niveau macroscopique. En particulier, les échanges d'énergie et de matière à l'intérieur du manteau neigeux et entre la neige et l'atmosphère sont fortement influencés par l'évolution au cours du temps de la microstructure de la neige. Une représentation adéquate du métamorphisme dans les modèles de manteau neigeux s'avère donc cruciale. La micro
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Porfiri, Martina. "Digital surface model generation over urban areas using high resolution satellite SAR imagery : tomographic techniques and their application to 3-Dchange monitoring." Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1S035/document.

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L'urbanisation et la gestion de l'environnement urbain et sa périphérie deviennent l'un des problèmes les plus cruciaux dans les pays développés et en développement. Dans ces circonstances, les données de télédétection sont une source importante d'information qui reflète les interactions entre les êtres humains et leur environnement. Compte tenu de leur indépendance totale des contraintes logistiques sur le terrain, l'éclairage (lumière du jour) et météorologiques (nuages) conditions, Synthetic Aperture Radar (SAR) les systèmes de satellites peuvent fournir des contributions importantes dans d
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Chatillon, Yohann. "Méthodes électrochimiques pour la caractérisation des piles à combustibles de type PEM en empilement." Thesis, Université de Lorraine, 2013. http://www.theses.fr/2013LORR0195/document.

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La pile à combustible apparaît comme une technologie prometteuse pour la conversion énergétique à faible impact environnemental mais sa commercialisation à grande échelle nécessite de relever certains défis économiques et technologiques. Tout d'abord, pour fonctionner, la pile a besoin de systèmes (compresseurs, convertisseurs,...) parfois volumineux et coûteux en énergie. Ensuite, le prix de certains éléments constituants la pile reste élevé car ce sont des produits à haute valeur technologique utilisant des matériaux parfois très onéreux (membrane polymère, couche catalytique,...). L'optimis
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Jacquin, Anne. "Dynamique de la végétation des savanes en lien avec l’usage des feux à Madagascar : analyse par série temporelle d’images de télédétection." Phd thesis, Toulouse, INPT, 2010. http://oatao.univ-toulouse.fr/7223/1/jacquin.pdf.

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Bien que le feu soit reconnu comme un facteur d’influence dans la dynamique de végétation des savanes, son rôle n’est pas clairement défini. Cette thèse aborde le problème de l’étude de la relation entre l’usage des feux et la dynamique de végétation. L’approche choisie repose sur l’analyse de séries temporelles d’images de télédétection à moyenne résolution spatiale. Les savanes étudiées sont situées sur le bassin versant de Marovoay au nord-ouest de Madagascar. Dans la mesure où il n’existe pas de consensus quant aux méthodes à utiliser, les savanes de Madagascar offrent un contexte particul
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Denardou-Tisserand, Anaïs. "Changements du stock de bois sur pied des forêts françaises : description, analyse et simulation sur des horizons temporels pluri-décennal (1975 - 2015) et séculaire à partir des données de l'inventaire forestier national et de statistiques anciennes." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0009.

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Contexte. Après des siècles de diminution, la surface forestière de la plupart des pays développés augmente, un phénomène appelé « transition forestière ». Le stock de bois sur pied présente une augmentation plus rapide mais son évolution, associée à des problématiques actuelles majeures, reste négligée. Il est indispensable de caractériser et comprendre ces évolutions, d’en connaître les causes sous-jacentes, et de les reconstituer sur le long terme afin de pouvoir situer les ressources forestières dans une trajectoire d’ensemble et anticiper leur dynamique future. Cette thèse est consacrée a
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Denardou-Tisserand, Anaïs. "Changements du stock de bois sur pied des forêts françaises : description, analyse et simulation sur des horizons temporels pluri-décennal (1975 - 2015) et séculaire à partir des données de l'inventaire forestier national et de statistiques anciennes." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0009.

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Contexte. Après des siècles de diminution, la surface forestière de la plupart des pays développés augmente, un phénomène appelé « transition forestière ». Le stock de bois sur pied présente une augmentation plus rapide mais son évolution, associée à des problématiques actuelles majeures, reste négligée. Il est indispensable de caractériser et comprendre ces évolutions, d’en connaître les causes sous-jacentes, et de les reconstituer sur le long terme afin de pouvoir situer les ressources forestières dans une trajectoire d’ensemble et anticiper leur dynamique future. Cette thèse est consacrée a
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Lin, Po-Tsun, and 林柏村. "Hand Surface Area Variation Analyzed by 3D Laser Scan Measurement." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/99189083834867109100.

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碩士<br>中華大學<br>工業管理學系碩士班<br>103<br>Gloves are designed and used to protect our hands from various impairment and hurt. However, the lack of comfort and the reduction of dexterity of hands often frustrate the use of gloves. Thus, a good design of gloves has to provide both fitness and movability for hands. For fitness, traditionally hand dimensions had been measured by tapes, calipers and Martin-type anthropolometers to develop glove size models. Or nowadays the surface shape of hands had been measured by 3D laser scanning technologies under some standard posture to estimate the shape and area o
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Lu, Kang-Ming, and 呂罡銘. "An Application of Satellite Remote Sensing Techniqueto Analyze Percentage of Impervious Surface Area in Urban Environment- A Case Study of Tainan City." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/06268740924016836209.

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碩士<br>國立成功大學<br>建築學系碩博士班<br>94<br>The percentage of impervious surface area (ISA) is one of the important index while assessing the city water circulation. It also plays an important role on the evaluation of urban micro climate and city eco-environment. In order to quantified and qualitative analyze the state of ISA in urban environment; we utilized satellite remote sensing technique to analyze the percentage of ISA in Tainan city. This research is divided into two subjects. One is the feasibility study of the application of utilizing satellite remote sensing technique on analyzing the percen
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Books on the topic "Surface Area Analyzer"

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B, McHugh John, and Geological Survey (U.S.), eds. Chemical analyses of 33 surface water samples from the Gunnison area, Colorado. U.S. Geological Survey, 1995.

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B, McHugh John, and Geological Survey (U.S.), eds. Chemical analyses of 33 surface water samples from the Gunnison area, Colorado. U.S. Dept. of the Interior, U.S. Geological Survey, 1995.

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B, McHugh John, and Geological Survey (U.S.), eds. Chemical analyses of 33 surface water samples from the Redcloud Peak area, Colorado. U.S. Dept. of the Interior, U.S. Geological Survey, 1995.

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Kochurov, Boris, Petr Merkulov, and Svetlana Merkulova. Ecodiagnostics of ethno-natural processes in the European region of Russia. INFRA-M Academic Publishing LLC., 2017. http://dx.doi.org/10.12737/22015.

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The book deals with theoretical issues of ecodiagnostics, interaction of ethnic groups and landscapes, analyzes the history of the development of the geo-ecological approach and ethnocultural landscape studies in geographical science. The stages of interaction between human society and the natural environment on the territory of the ethnogenesis of the Mordovian people in the Holocene are described in detail. Special attention is paid to the analysis of the current ecological and economic state of the territory of the Republic of Mordovia. The focus is on the study of bioclimatic characteristi
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Comparison of TAMS/RT Surface Wind, Temperature, and Pressure Fields With Surface Observations and Model Analyses in the Socal Area. Storming Media, 1999.

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Stirtz, Timothy M. Three Analyses of Underlying Plosives in Caning, a Nilo-Saharan Language of Sudan. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190256340.003.0016.

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Caning (or Shatt), an Eastern Sudanic (Nilo-Saharan) language of Sudan, has bilabial, alveolar, palatal, and velar plosives, but it is not straightforward for which plosives (if any) there is an underlying voicing contrast. Three analyses that can be shown to account reasonably for the data. One analysis proposes a voicing contrast of all plosives in all word positions where plosives occur. Of the three, this analysis posits underlying plosives most closely to the surface forms. A second analysis proposes only a voicing contrast of alveolar and velar plosives in word-initial position, and posi
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Mann, Peter. Near-Equilibrium Oscillations. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198822370.003.0012.

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In this chapter, the theory of near-equilibrium oscillations is developed and normal mode analysis is performed. This topic requires a little bit of linear algebra when dealing with matrices, as well as an understanding of differential equations. The chapter explores small perturbations (small nudges or tiny shifts) to a stable equilibrium point in configuration space and introduces the characteristic equation. Interdisciplinary examples are then investigated, including a surface science example in which the bond frequencies of surface adsorbates are calculated, an example in which the motion
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Kaimal, J. C., and J. J. Finnigan. Atmospheric Boundary Layer Flows. Oxford University Press, 1994. http://dx.doi.org/10.1093/oso/9780195062397.001.0001.

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Boundary layer meteorology is the study of the physical processes that take place in the layer of air that is most influenced by the earth's underlying surface. This text/reference gives an uncomplicated view of the structure of the boundary layer, the instruments available for measuring its mean and turbulent properties, how best to make the measurements, and ways to process and analyze the data. The main applications of the book are in atmospheric modelling, wind engineering, air pollution, and agricultural meteorology. The authors have pioneered research on atmospheric turbulence and flow,
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Fuglsang-Frederiksen, Anders, Kirsten Pugdahl, and Hatice Tankisi. Quantitative electromyography. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199688395.003.0008.

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Several quantitative electromyography (QEMG) methods are used for diagnosing and monitoring in patients with neuromuscular disorders. At weak effort of the muscle, motor unit potential (MUP) analyses as individual MUP, multi-MUP, and macro-EMG are diagnostically sensitive and well tested. At higher effort of the muscle, interference pattern analyses such as the turns amplitude analysis are also diagnostically sensitive. Other potential diagnostic methods are power spectrum analysis, muscle fibre conduction velocity analysis, and some surface EMG methods. In patients with myopathy, QEMG has an
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Escudier, Marcel. Oblique shockwaves and expansion fans. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198719878.003.0012.

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External supersonic gas flow in which changes in the fluid and flow properties are brought about by direction change is analysed in this chapter. In addition, it is shown that flow over a corner between two flat surfaces resulted in an oblique shockwave if the angle between the two surfaces is less than 180° (a concave corner). The analysis of flow through an oblique shockwave is based upon the superposition of the flowfield for a normal shock onto a uniform flow parallel to the shock. It is also shown that both weak and strong oblique shocks can occur. For an angle in excess of 180° (a convex
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Book chapters on the topic "Surface Area Analyzer"

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Gao, Y., J. Xiang, Z. Yu, G. Han, and H. Jing. "Influence of Carbon Nanotubes on the Fracture Surface Characteristics of Cementitious Composites Under the Brazilian Split Test." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3330-3_53.

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AbstractTo better analyze the reinforcing mechanisms of carbon nanotubes (CNTs) in cementitious composites, the micromorphological characteristics of the fracture surface of cement-based specimens under the Brazilian split test were investigated. The results demonstrated that the addition of CNTs promoted nucleation and pore filling effects that optimized the pore structure and inhibited the development of microcracks in the cement matrix during loading. Due to the ultra-high specific surface area and bridging effects of CNTs, the formation of hydration products was promoted, internal microcra
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Al-Dousari, A. M., M. Al-Sahli, J. Al-Awadhi, A. K. Al-Enezi, N. Al-Dousari, and M. Ahmed. "Sand Dunes in Kuwait, Morphometric and Chemical Characteristics." In The Geology of Kuwait. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-16727-0_3.

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AbstractThere are around 2,304 sand dunes scattered within seven dune fields in Kuwait. The longest barchanoid chain dune in Kuwait is 2400 m and 900 m. All the dunes in Kuwait were mapped, sampled, and analyzed. This chapter passes through dunes in Kuwait covering the following: The dunes mapping. The dune migrations using satellite images. The chemical properties include Mineralogical properties. X-ray diffraction (major and minor trace elements). Micro-inclusions within Aeolian particles. The physical properties include The particle size analysis. Statistical properties. Particle micro-feat
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Ansari, Tauseef A., and Y. B. Katpatal. "Spatial and Temporal Analyses of Impervious Surface Area on Hydrological Regime of Urban Watersheds." In Hydrologic Modeling. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-5801-1_8.

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Patera, Antonio, and Andrea G. Fabbri. "Experiments of Modelling Subaqueous Landslide Susceptibility in Lake Albano of Castel Gandolfo." In Progress in Landslide Research and Technology. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-72736-8_7.

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AbstractOur modelling experiments aim at generating and interpreting the prediction patterns of subaqueous landslides within the Lake Albano maar, a complex volcanic depression located southeast of Rome. These patterns, which assess the possibility of future events, are based on the spatial distribution of historical landslide forms within the lake, analyzed in conjunction with continuous field values derived from high-resolution digital elevation models. To establish the mathematical framework for modelling these spatial patterns, we employed empirical likelihood ratios and utilized a fuzzy s
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Li, Shuangcen, and Shiqiang Luo. "Mathematical Analysis of Tooth Contact in a Drum Worm Pair." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-97-7887-4_84.

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Abstract A planar internal gear enveloping drum worm (PIGEDW) reducer is designed for analyzing its contact area. In this paper, the mathematical analysis method of tooth contact is proposed to analyze its contact pattern. Firstly, the PIGEDW mathematical model is created on the basis of the gear meshing theory. Secondly, the simulation model of PIGEDW tooth surface contact is established by MATLAB. Finally, based on the previous step, a parametric study is carried out to investigate the influences of transverse module, radius of the main basic circle and inclination angle of the generating pl
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Liu, Xiaobin. "Force Analysis of Anti-slip Pile Bodies on Soil Mudstone Slopes Under Heavy Rainfall." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1748-8_39.

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AbstractThe soil mudstone slope anti-slip piles are used as the object of study to analyse the pile forces under the action of heavy rainfall. Introduction to the project, description of the general topographic elevation of the area; extraction of seepage potential energy from soil mudstone, calculation of rainfall and rainfall infiltration, assumption of vertical wall backs and horizontal fill behind the wall, calculation of lateral pressure on the rock supported by anti-slip piles, analysis of its damage mode according to the morphology of the bedrock surface and the conditions of the rock o
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Wang, Yong, Chen Xu, Changchun Li, Xiaofei Yao, Xingbo Xiang, and Haoxuan Huang. "Surface Vibration of Throw-Type Blast in an Open-Pit Mine." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2532-2_11.

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AbstractIn the process of Open-pit mining in China, throwing blasting is an important method, which is very likely to cause serious damage to the slope of the discharge field under the action of vibration load of throwing blasting. With the background of throwing blasting process in Heidaigou open-pit mine in Ordos, vibration velocity data were collected from the discharge field near the throwing blast, and the vibration signal of throwing blast was analyzed by means of Fourier transform to obtain the characteristics of throwing blast vibration velocity wave and the attenuation law and predict
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Popov, Valentin L. "Adhesion Hysteresis Due to Chemical Heterogeneity." In Springer Tracts in Mechanical Engineering. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-60124-9_20.

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AbstractAccording the JKR theory of adhesivecontact, changes of the contact configuration after formation of the adhesive neck and before detaching are completely reversible. This means, that after formation of the initial contact, the force-distance dependencies should coincide, independently of the direction of the process (indentation or pull-off). In the majority of real systems, this invariance is not observed. The reasons for this may be either plastic deformation in the contacting bodies or surface roughness. One further mechanism of irreversibility (and corresponding energy dissipation
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Shang, Liping, Yu′e Du, and Baokang Liu. "Analysis of Spatial-Temporal Evolution of Water Surface Area in DaSuGan Lake Based on Multi-source Satellite Images and Computer Vision Technology." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-2409-6_27.

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Abstract Lakes are sensitive indicators of climate change, and obtaining the information of lake water quickly and accurately is of great significance for regional climate change research, the protection and governance of ecological environment. This article is based on multi-source satellite images such as Landsat and GF-6, and uses the method of empirical threshold and single band threshold and water index and other methods to extract the water area of DaSuGan lake. Based on the accuracy evaluation results, the optimal water identification model is selected, and the spatial-temporal evolutio
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Wan, Weifeng, Feng Zeng, Liqun Sun, and Weidong Zhou. "Exploring the Impacts of Large Hydroelectric Projects on Downstream Wetland Ecosystems: A Case Study of the Impact Zone of the Jingwei Wetland Reserve." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-9184-2_32.

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AbstractThe construction of a hydroelectric project will impact the interaction between surface water and groundwater downstream, potentially disrupting the ecological balance of the downstream wetland water bodies. This study focuses on the effects of the Dongzhuang Reservoir construction on the downstream Jingwei Wetland and conducts numerical modeling calculations of unstable three-dimensional groundwater flow under various operating conditions. It simulates and predicts the variations in water level burial depth at different sections of the wetland protection area and at different distance
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Conference papers on the topic "Surface Area Analyzer"

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Mittal, Garima, Imran Bhamji, Francesco Fanicchia, and Shiladitya Paul. "Development of Solution Precursor Plasma Spray TiO2/Al2O3 Composite Coatings for Heat Exchanger Application." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16304.

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Abstract Surface modification of the metal components involved in heat transfer is one of the passive methods used to enhance their heat transfer efficiency. Coatings with micro- or nano-scale features are widely employed to modify surfaces due to their enhanced surface area, which increases the number of boiling nucleation sites, leading to the generation of a higher number of bubbles. In geothermal power generation, due to the aggressive nature of the working fluid and chemistry of the geothermal brine, ceramic coatings are preferred. Along with having good compressive strength and hardness,
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Armanu, Emanuel Gheorghita, Marius Sebastian Secula, Nicanor Cimpoesu, Hermann J. Heipieper, and Irina Volf. "A BIOBASED NANO/MICRO-STRUCTURED MATERIAL FOR MICROORGANISMS� IMMOBILIZATION." In SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/6.1/s24.01.

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Microbial immobilization is a promising strategy for various applications, including environmental remediation and bioprocess engineering. However, the efficacy of immobilization largely depends on the characteristics of the carriers. Biomass wastes are renewable and abundant resources that can be subjected to hydrothermal carbonization (HTC) for hydrochar production, a resulting carbonaceous material with a porous structure. This porous architecture offers extensive surface area and facilitates the colonization and growth of microorganisms, working as a protective buffer zone in highly pollut
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Szabo, Veronika, Dora Judit Kukk, and Ildiko Kohut. "SOME ECOLOGICAL SERVICES OF THE FIRST, 4-YEARS OLD, HUNGARIAN MIYAWAKI-FOREST IN TABAN, BUDAPEST." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/4.2/s18.30.

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Miyawaki-forest is a well-known method to create small forest quickly in urban conditions. It works with native woody species that are densely (4-5 pcs/m2) planted together after topsoil changing in a quite small area. The first Hungarian Miyawaki-forest was introduced in Taban, 2021. It planted with 9 native species (Acer platanoides, Acer campestre, Carpinus betulus, Crataegus monogyna, Euonymus europaeus, Pyrus pyraster, Ulmus laevis, Sorbus torminalis and Quercus robur). The area is 40 m2. Soil was changed up to 50 centimeters before planting. 120 individuals were planted and the surface w
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Fletcher, J. F., and D. Leonard. "New Developments in Surface Profile Measurement for Blast Cleaned Surfaces." In SSPC 2013 Greencoat. SSPC, 2013. https://doi.org/10.5006/s2013-00020.

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Abstract When protective coatings are to be applied to structures, it is important that the surface is clean and dry if premature failure of the coating is to be prevented and the full coating service life achieved. In many situations for both new build and repair of structures, blast cleaning of the surface is required to remove contamination and to create an anchor pattern to enhance the adhesion of the coating system to the substrate. The measurement of the profile is important in achieving the specification but also to ensure that the blast cleaning process is in control and not producing
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Kang, Young C., Wim J. van Ooij, and Darren A. Lytle. "Characterization of Copper Corrosion Products Formed in Drinking Water by Combining Electrochemical and Surface Analyses." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08379.

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Abstract This study focuses on the application of electrochemical corrosion rate measurement and solid surface analysis approaches to understanding drinking water copper corrosion. Applying electrochemical approaches combined with copper solubility measurements, and solid surface analysis approaches are discussed. DC polarization (DCP) and Electrochemical Noise (ECN) measurements were carried out to obtain Stern-Geary constant and noise resistance, respectively. ECN has the advantage in that corrosion behavior can be monitored as a function of extended periods of time without the need to apply
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Toribio, Jesús, Diego Vergara, and Miguel Lorenzo. "Role of Microstructural Anisotropy of Prestressing Steel on the Fractographic Appearance of Hydrogen-Assisted Micro-Damage." In CORROSION 2011. NACE International, 2011. https://doi.org/10.5006/c2011-11291.

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Abstract Cold drawn prestressing steel wires are materials with a markedly oriented microstructure as a consequence of the manufacturing (cold drawing) process. In addition, it is well known that such materials usually work in harsh (or aggressive) environments and they are highly susceptible to environmentally assisted cracking (EAC) in general, either pure stress corrosion cracking (SCC) by localized anodic dissolution (LAD) or the even more dangerous phenomenon of hydrogen assisted cracking (HAC), hydrogen assisted fracture (HAF) or hydrogen embrittlement (HE). This study analyzes the influ
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Muliadi, Ariel R., Paul E. Sojka, Yudaya R. Sivathanu, and Jongmook Lim. "Comparison of Particle Dynamics Analyzer (PDA) and SetScan Optical Patternator Results." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43520.

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The primary goal of this study was to determine when patternation information derived from Particle Dynamics Analyzer (Dantec Dynamics dual-PDA) measurements of volume flux, velocity and mean drop size agreed with corresponding values measured using an optical patternator (En’Urga, Inc SetScan OP-600). To achieve this, data from each instrument was transformed into spatially resolved absorptances (equivalent to drop surface area per unit volume) and compared. The secondary goal of this study was to explain the cause of any discrepancies in comparison of the two absorptance sets when they occur
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Wolfrum, E., W. Husinsky, P. Wurz, G. Betz, L. Hudson, and N. Tolk. "Thresholds of neutral ground state and excited atoms under electron bombardment-an indicator for desorption processes via core excitons." In Microphysics of Surfaces, Beams, and Adsorbates. Optica Publishing Group, 1989. http://dx.doi.org/10.1364/msba.1989.tua3.

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A 10 eV to 200 eV electron beam with currents up to 30 µA was used to bombard a LiF single crystal surfaces. The electron beam axis was incident on the target under 45°. The bombarding area had dimensions of approximately 2 by 4 mm. Careful investigations have been done to measure the profile of the electron beam. Radiation of excited states was collimated by a MgF2 lens into a high resolution one meter grating monochromator viewing the crystal surface perpendicularly. Ground state Li atoms have been measured with a quadrupole mass analyzer. The UHV-system maintained a base pressure of less th
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Kim, Hyunho, Sungwoo Yang, Shankar Narayanan, Ian McKay, and Evelyn N. Wang. "Experimental Characterization of Adsorption and Transport Properties for Advanced Thermo-Adsorptive Batteries." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65490.

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Thermal energy storage has received significant interest for delivering both heating and cooling in electric vehicles, to minimize the use of the on-board electric batteries for heating, ventilation and air-conditioning (HVAC). An advanced thermo-adsorptive battery (ATB) is currently being developed, to provide both heating and cooling for an electric vehicle. We present a detailed thermophysical and physicochemical characterization of adsorptive materials for the development of the ATB. We discuss the feasibility of using contemporary adsorptive materials, such as zeolite 13X, by carrying out
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Nielsen, P. T., T. Mathiesen, J. K. Kristensen, L. Hilbert, and L. Yde. "Atmospheric Plasma Spraying of Electrodes for Conversion of Electricity to Hydrogen by High Temperature Alkaline Electrolysis of Water." In ITSC2011, edited by B. R. Marple, A. Agarwal, M. M. Hyland, et al. DVS Media GmbH, 2011. http://dx.doi.org/10.31399/asm.cp.itsc2011p0338.

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Abstract Energy obtained by wind turbines can be foreseen to constitute a significant part of the future energy sources. A major challenge is however the large variation over time in wind energy production. Energy conversion from electricity to storable energy is therefore a key technology to master, and it is therefore important to develop compact, reliable, cheap and energy efficient equipment for this. An obvious solution is production of hydrogen based on water alkaline electrolysis. In the work presented the atmospheric plasma spraying (APS) of Raney nickel (50/50 Ni/Al) was used to devel
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Reports on the topic "Surface Area Analyzer"

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Kinser, Ryan, Mark Barkey, Timothy Rushing, et al. Computationally efficient modeling of lightweight expeditionary airfield surfacing systems at large length scales. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48266.

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Expeditionary airfield matting systems are lightweight, portable surfaces that enable the rapid deployment of infrastructure to support aircraft operations. Individual matting components are assembled via interlocking joints to construct arrays that serve as temporary aircraft operating surfaces. The paper outlines the homogenization of the AM2 portable airfield matting system and its interlocking mechanisms to permit computationally efficient analyses toward understanding mechanisms that influence the global behavior of these arrays and underlying subgrade during aircraft maneuvers. An equiva
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Garcia Aramendiz, Johan Sebastián, Leonardo Forero Varela, and Jorge Alberto Medina Perilla. Evaluation of the effect of cellulose nanofibers in thermoplastic starch films. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.ss.bbb.9.

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Thermoplastic starches (TPS) are important bio-based, biodegradable polymers used in flexible packaging. However, their mechanical properties, processability, and high hydrophilicity limit their applications. This study examines the effects of chemical modifications and mechanical reinforcements on TPS matrices. Combinations of native and acetylated TPS, reinforced with native (CNF) and acetylated cellulose nanofibers (CNFA) at 1%, 2%, 3%, and 10%, were analyzed. TPS films were prepared with CNF using compression molding, followed by structural, morphological, mechanical, and hygroscopic analy
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Worsfold, Mark. An analysis of the impact of Ocean Gliders on the AMM15 model. Met Office, 2023. http://dx.doi.org/10.62998/dwza4679.

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The Atlantic Margin Model (AMM15) is one of the ocean models used by the Met Office, predicting ocean circulation in the North Atlantic approaches and shelf seas around the UK at a resolution of 1.5km. Model analyses and forecasts are used in a wide range of applications including search and rescue, oil spill response and providing sea-surface temperature boundary conditions for Met Office numerical weather prediction. The majority of observations used to constrain the AMM15 model are surface measurements collected by satellites. In situ and sub-surface observations of shelf seas around the UK
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Gavillot, Yann G. Landslide inventory and slope map of Deer Lodge County, southwest Montana. Montana Bureau of Mines and Geology, 2025. https://doi.org/10.59691/hzhd5965.

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The Landslide Inventory and Slope Map identifies landslides that demonstrate evidence of gravity-driven movement based on lidar data, geomorphic and topographic analyses, satellite imagery, field checks, and, when available, published geologic maps. Landslides are classified based on the relative recency of surface movement. The slope map provides a preliminary tool to identify areas that may be susceptible to failure. This map is designed for use as a general planning tool to identify areas potentially hazardous to future mass movements.
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Turner, Benjamin. Guidance for Factoring Deep Foundation Structural Resistance for Landslide Stabilization and Excavation Support. Deep Foundations Institute, 2023. http://dx.doi.org/10.37308/cpf-2017-land-1.

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Lateral support provided by deep foundations can be an effective means to stabilize existing and potential landslides, and deep foundations contribute to the stability of support-of-excavation systems. However, defining the structural resistance and implementing it in a slope stability analysis that satisfies LRFD requirements is a source of significant confusion and miscommunication among geotechnical and structural designers. This report explains the implications of applying (or not) structural resistance factors at various stages of the analysis. Furthermore, most commercial slope stability
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Gavillot, Yann. Quaternary fault map of Deer Lodge County, southwest Montana. Montana Bureau of Mines and Geology, 2025. https://doi.org/10.59691/cqib1687.

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The Quaternary Fault Map identifies faults that demonstrate evidence of earthquake surface ruptures based on lidar data, geomorphic and topographic analyses, field checks, and, when available, published geologic maps. Faults are considered potentially seismically active and hazardous if fault activity produced coseismic surface deformation during an earthquake, typically expressed as fault scarps, within the Quaternary period (past 2.6 million years). All Quaternary faults in Deer Lodge County have a predominantly normal sense of slip and accommodate continental extension, associated with the
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Jenkins, Brian, Bruce Butterworth, and Sachi Yagu. Evolving Patterns of Violence in Developing Countries. Mineta Transportation Institute, 2023. http://dx.doi.org/10.31979/mti.2024.2344.

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In August 2022, MTI issued a report entitled Changing Patterns of Violence Pose New Challenges to Public Surface Transportation in the United States. That report analyzed the frequency and lethality of attacks on public surface transport in economically advanced countries. But what has been going on in non-economically advanced countries – the vast majority of countries in the world? Using the MTI database of Terrorist and Serious Criminal Attacks Against Public Surface Transportation, the authors analyzed attacks against passenger trains and train stations, buses and bus stations and stops, a
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Faucher, B. F., A. M. LeBlanc, N. Benoît, É. Girard, and O. Pedchenko. Physicochemical limnology of lakes in the Rankin Inlet area of Nunavut. Natural Resources Canada/CMSS/Information Management, 2024. http://dx.doi.org/10.4095/p4bwndvvbb.

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Avec l'augmentation attendue des activités minières dans les régions nordiques du Canada en raison de la demande mondiale de minéraux critiques, il est impératif de concevoir des méthodes nouvelles et fiables pour identifier les lacs qui peuvent être situés au-dessus des sections de sol non gelées (c.-à-d. les taliks) dans les environnements de pergélisol continu. Lorsque les taliks pénètrent complètement le pergélisol, ils peuvent permettre des interactions entre les eaux de surface et les eaux souterraines sous le pergélisol, ce qui présente des défis importants pour les opérations minières.
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Taylor, S., J. Lever, K. Burgess, et al. Sampling interplanetary dust from Antarctic air. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/43345.

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We built a collector to filter interplanetary dust particles (IDPs) larger than 5 µm from the clean air at the Amundsen Scott South Pole station. Our sampling strategy used long duration, continuous dry filtering of near-surface air in place of short duration, high-speed impact collection on flags flown in the stratosphere. We filtered ~107 m³ of clean Antarctic air through 20 cm diameter, 3 µm filters coupled to a suction blower of modest power consumption (5–6 kW). Our collector ran continuously for 2 years and yielded 41 filters for analyses. Based on stratospheric concentrations, we predic
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Bell, Haley, Lulu Edwards, and John Rushing. Expeditionary ground rehabilitation for military-vehicle traffic. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48670.

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The research objective for this study is to identify and evaluate techniques for soil stabilization to support military-vehicle ground maneuver in contested environments. Various types of stabilizers mixed with silty sand are evaluated in the laboratory for their compressive strength at various soil moisture contents and in the field for their rutting performance. Field data are analyzed for the ability to withstand trafficking from a military ground vehicle by evaluating the rut depth and measured instrumentation data. The field testing shows that the rapid soil stabilization materials and te
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