Relevant bibliographies by topics / Dust growth

Academic literature on the topic 'Dust growth'

Author: Grafiati
Published: 4 June 2021
Last updated: 20 February 2023

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Journal articles on the topic "Dust growth"

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Saani, Chinwe I., Joshua Kayode, Benson O. Ademiluyi, and M. Yoserizal Saragih. "Effect of Growth Media on Plumule Emergence and Early Seedling Growth of Monodora myristica." Budapest International Research in Exact Sciences (BirEx) Journal 2, no. 4 (October 9, 2020): 436–42. http://dx.doi.org/10.33258/birex.v2i4.1257.

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The study investigated the emergence and early seedling development of Monodora myristica in six different growth media viz: mixture of river sand/top soil, river sand/saw dust, top soil/saw dust, saw dust only, top soil only and river sand only. Results obtained recorded highest percentage germination (63%) in seeds sown in saw dust only. Early seedling growth was observed for four months. The results of this study showed that seedlings sown in mixture of top soil/saw dust recorded highest mean plant height (16.83cm), stem girth ( 2.50mm), and leaf area (46.18cm2) at the end of the experimental time. Seedlings on top soil only had the highest number of leaves (3.89). River sand had the least seedling performance in all the growth parameters examined; plant height (13.27cm), stem collar girth (1.99mm), leaf length (8.61cm), leaf width (4.77cm) and leaf area (30.83cm2). The study established that the % emergence of Monodora myristica seedlings was best in saw dust medium while mixture of top soil/saw dusts is recommended for enhancing early seedling growth of this plant in the nursery.
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Ishibashi, W. "Supercritical dusty BH growth in the early Universe." Monthly Notices of the Royal Astronomical Society 505, no. 4 (June 18, 2021): 5846–52. http://dx.doi.org/10.1093/mnras/stab1728.

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ABSTRACT Supermassive black holes (with ${M_{\rm BH} \sim 10^9\, \mathrm{M}_{\odot }}$) are observed in the first Gyr of the Universe, and their host galaxies are found to contain unexpectedly large amounts of dust and metals. In light of the two empirical facts, we explore the possibility of supercritical accretion and early black hole growth occurring in dusty environments. We generalize the concept of photon trapping to the case of dusty gas and analyse the physical conditions leading to ‘dust photon trapping’. Considering the parameter space dependence, we obtain that the dust photon trapping regime can be more easily realized for larger black hole masses, higher ambient gas densities, and lower gas temperatures. The trapping of photons within the accretion flow implies obscured active galactic nuclei, while it may allow a rapid black hole mass build-up at early times. We discuss the potential role of such dust photon trapping in the supercritical growth of massive black holes in the early Universe.
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AL-HAIDARY, Hanaa Khudhaier Mohammed Ali, and A. F. Abed AL-KHADER. "EVALUATION OF GROWTH AND SEED YIELD OF TWO CULTIVARS OF FLAX." MINAR International Journal of Applied Sciences and Technology 03, no. 04 (December 1, 2021): 17–22. http://dx.doi.org/10.47832/2717-8234.4-3.3.

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In this research, we have conducted an experimental study of the dusty plasma to the Aluminum oxide (Al2O3) dust material with a grain radius of (0.2) µm to (0.6) µm. In the experiment, we use air in the vacuum chamber system under different low pressure (0.1-0.8) Torr. The results have showed that the existence of dust particles in air plasma is equal to the Paschen minimum which is (0.4) Torr with Al2O3 dusty and without dust. The effect of Al2O3 dust particles on the plasma characteristics like floating potential (Vf), plasma potential (Vp), electron saturation current (Ies), temperature of the electron (Te), density of electron (ne) and density of ion (ni) of the DC system that can be calculated in the glow-discharge region. Parameter measurements are taken by four cylindrical probes which are diagnosed at a distance of (40) mm from the cathode diameter, the Paschen minimum at a pressure of (0.4) Torr. The plasma potential and the probe's floating voltage become more negative when dust is immersed in the plasma region. The features of these parameters show that the current discharge decreases while the discharge voltage increases when the aluminum oxide dust particles that are incorporated. And vice versa was in the absence of dust. Electron density increases in the existence of dust particles which causes the electron temperature to decrease.
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Kaur, Daljeet, Suresh C. Sharma, R. S. Pandey, and Ruby Gupta. "Weibel instability oscillation in a dusty plasma with counter-streaming electrons." Laser and Particle Beams 38, no. 1 (January 17, 2020): 8–13. http://dx.doi.org/10.1017/s0263034619000776.

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AbstractWe investigate the Weibel instability (WI) in a dusty plasma which is driven to oscillation by the addition of dust grains in the plasma. Our analysis predicts the existence of three modes in a dusty plasma. There is a high-frequency electromagnetic mode, whose frequency increases with an increase in the relative number density of dust grains and which approaches instability due to the presence of dust grains. The second mode is a damping mode which exists due to dust charge fluctuations in plasma. The third mode is the oscillating WI mode. The dispersion relation and the growth rate of various modes in the dusty plasma are derived using the first-order perturbation theory. The effect of dust grain parameters on frequency and growth rate is also studied and reported.
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Triani, Dian P., Manodeep Sinha, Darren J. Croton, Camilla Pacifici, and Eli Dwek. "The origin of dust in galaxies across cosmic time." Monthly Notices of the Royal Astronomical Society 493, no. 2 (February 14, 2020): 2490–505. http://dx.doi.org/10.1093/mnras/staa446.

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ABSTRACT We study the dust evolution in galaxies by implementing a detailed dust prescription in the SAGE semi-analytical model (SAM) for galaxy formation. The new model, called Dusty SAGE, follows the condensation of dust in the ejecta of Type II supernovae and asymptotic giant branch stars, grain growth in the dense molecular clouds, destruction by supernovae shocks, and the removal of dust from the interstellar medium (ISM) by star formation, reheating, inflows, and outflows. Our model successfully reproduces the observed dust mass function at redshift z = 0 and the observed scaling relations for dust across a wide range of redshifts. We find that the dust mass content in the present Universe is mainly produced via grain growth in the ISM. By contrast, in the early Universe, the primary production mechanism for dust is the condensation in stellar ejecta. The shift of the significant production channel for dust characterizes the scaling relations of dust-to-gas (DTG) and dust-to-metal (DTM) ratios. In galaxies where the grain growth dominates, we find positive correlations for DTG and DTM ratios with both metallicity and stellar mass. On the other hand, in galaxies where dust is produced primarily via condensation, we find negative or no correlation for DTM and DTG ratios with either metallicity or stellar mass. In agreement with observation showing that the circumgalactic medium contains more dust than the ISM, our model also shows the same trend for z < 4. Our SAM is publicly available at https://github.com/dptriani/dusty-sage.
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Scott, Erin. "Dust records mountain growth." Nature Reviews Earth & Environment 2, no. 2 (January 20, 2021): 89. http://dx.doi.org/10.1038/s43017-021-00141-3.

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Martínez-González, Sergio, Richard Wünsch, Guillermo Tenorio-Tagle, Sergiy Silich, Dorottya Szécsi, and Jan Palouš. "Dust Grain Growth and Dusty Supernovae in Low-metallicity Molecular Clouds." Astrophysical Journal 934, no. 1 (July 1, 2022): 51. http://dx.doi.org/10.3847/1538-4357/ac77fe.

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Abstract We present 3D hydrodynamical models of the evolution of superbubbles powered by stellar winds and supernovae from young coeval massive star clusters within low-metallicity (Z = 0.02 Z ⊙), clumpy molecular clouds. We explore the initial stages of the superbubble evolution, including the occurrence of pair-instability and core-collapse supernovae. Our aim is to study the occurrence of dust grain growth within orbiting dusty clumps, and in the superbubble’s swept-up supershell. We also aim to address the survival of dust grains produced by sequential supernovae. The model accounts for the star cluster gravitational potential and self-gravity of the parent cloud. It also considers radiative cooling (including that induced by dust) and a state-of-the-art population synthesis model for the coeval cluster. As shown before, a superbubble embedded into a clumpy medium becomes highly distorted, expanding mostly due to the hot gas streaming through low-density channels. Our results indicate that in the case of massive (∼107 M ⊙) molecular clouds, hosting a super star cluster (∼5.6 × 105 M ⊙), grain growth increments the dust mass at a rate ∼4.8 × 10−5 M ⊙ yr−1 during the first 2.5 Myr of the superbubble’s evolution, while the net contribution of pair-instability and core-collapse supernovae to the superbubble’s dust budget is ∼1200 M ⊙ (M SC/5.6 × 105 M ⊙), where M SC is the stellar mass of the starburst. Therefore, dust grain growth and dust injection by supernovae lead to the creation of, without invoking a top-heavy initial mass function, massive amounts of dust within low-metallicity star-forming molecular clouds, in accordance with the large dust mass present in galaxies soon after the onset of cosmic reionization.
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Crespe, Elisabeth, Jean-Francois Gonzalez, Guillaume Laibe, Sarah T. Maddison, and Laure Fouchet. "Influence of growth on dust settling and migration in protoplanetary discs." Proceedings of the International Astronomical Union 6, S276 (October 2010): 405–6. http://dx.doi.org/10.1017/s1743921311020540.

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AbstractTo form meter-sized pre-planetesimals in protoplanetary discs, dust aggregates have to decouple from the gas at a distance far enough from the central star so they are not accreted. Dust grains are affected by gas drag, which results in a vertical settling towards the mid-plane, followed by radial migration. To have a better understanding of the influence of growth on the dust dynamics, we use a simple grain growth model to determine the dust distribution in observed discs. We implement a constant growth rate into a gas+dust hydrodynamics SPH code and vary the growh rate to study the resulting effect on dust distribution. The growth rate allows us to determine the relative importance between friction and growth.We show that depending on the growth rate, a range of dust distribution can result. For large enough growth rates, grains can decouple from the gas before being accreted onto the central star, thus contributing as planetary building rocks.
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Sharma, Jyotsna, Ajay Gahlot, Suresh C. Sharma, and V. K. Jain. "Effect of dust charge fluctuations on upper hybrid wave instabilities in magnetized dusty plasma." International Journal of Modern Physics: Conference Series 32 (January 2014): 1460350. http://dx.doi.org/10.1142/s2010194514603500.

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The decay instability of an upper hybrid electrostatic wave into an upper hybrid sideband wave and lower hybrid wave is studied in magnetized dusty plasma. A local theory of this process has been developed. The growth rate and mode frequencies of the unstable wave were evaluated based on existing dusty plasma parameters and it is found that the unstable mode frequency and growth rate increases with δ (ion-to-electron density ratio) in the presence and absence of dust charge fluctuations in addition to dust dynamics.
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Pignatale, F. C., J.-F. Gonzalez, Bernard Bourdon, and Caroline Fitoussi. "Size and density sorting of dust grains in SPH simulations of protoplanetary discs – II. Fragmentation." Monthly Notices of the Royal Astronomical Society 490, no. 3 (October 14, 2019): 4428–46. http://dx.doi.org/10.1093/mnras/stz2883.

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ABSTRACT Grain growth and fragmentation are important processes in building up large dust aggregates in protoplanetary discs. Using a 3D two-phase (gas–dust) sph code, we investigate the combined effects of growth and fragmentation of a multiphase dust with different fragmentation thresholds in a time-evolving disc. We find that our fiducial disc, initially in a fragmentation regime, moves towards a pure-growth regime in a few thousands years. Time-scales change as a function of the disc and dust properties. When fragmentation is efficient, it produces, in different zones of the disc, Fe/Si and rock/ice ratios different from those predicted when only pure growth is considered. Chemical fractionation and the depletion/enrichment in iron observed in some chondrites can be linked to the size–density sorting and fragmentation properties of precursor dusty grains. We suggest that aggregation of chondritic components could have occurred where/when fragmentation was not efficient if their aerodynamical sorting has to be preserved. Chondritic components would allow aerodynamical sorting in a fragmentation regime only if they have similar fragmentation properties. We find that, in the inner disc, and for the same interval of time, fragmenting dust can grow larger when compared to the size of grains predicted by pure growth. This counter-intuitive behaviour is due to the large amount of dust that piles up in a fragmenting zone followed by the rapid growth that occurs when this zone transitions to a pure growth regime. As an important consequence, dust can overcome the radial-drift barrier within a few thousands years.
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Dissertations / Theses on the topic "Dust growth"

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Flanagan, Timothy McGuire. "Observations of thermal creep gas flow and dust-density waves in dusty plasma experiments." Diss., University of Iowa, 2010. https://ir.uiowa.edu/etd/802.

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In laboratory experiments, I study strongly-coupled dusty plasma levitated in a glow-discharge plasma. Dusty plasma is an arrangement of small dust particles in a plasma background of electrons, ions, and neutral gas. The dust particles are negatively charged because they collect electrons and ions from the background plasma. Depending on the experimental setup, the plasma's electric field can help to balance the dust particles against gravity. The high dust charge causes dust particles to repel each other, while confinement forces prevent their escape. The dust particles cannot easily move past one another, and instead organize themselves into highly-ordered structures. The neutral gas also plays a key role in these experiments. Depending on the relative motion between gas and dust particles, the neutral gas can either impede dust motion or it can drive the dust into motion. In this thesis, I report the findings of three separate experiments. In the first experiment, I use a spherically-shaped dusty plasma (Yukawa ball) as an indicator of a flow of neutral gas, called thermal creep flow. In the second and third experiments, I study naturally occurring dust-density waves, which propagate within the volume of a dusty plasma that has many horizontal layers. In Ch.2 of this thesis, I study thermal creep flow (TCF), which is a flow of gas driven by a temperature gradient along a solid boundary. Stripes on a glass box are heated by laser beam absorption, leading to both TCF and a thermophoretic force. A stirring motion of the dust particle suspension is observed. By eliminating all other explanations for this motion, I conclude that TCF at the boundary couples by drag to the bulk gas, causing the bulk gas to flow, thereby stirring the suspension of dust particles. This result provides an experimental verification that TCF in the slip-flow regime causes steady-state gas flow in a confined volume. In Ch.3, I observe the growth of a naturally occurring dust-density wave (DDW) using high-speed imaging. This low-frequency wave (∼ 25 Hz) grows in amplitude as it propagates downward through a dusty plasma. I measure the wave's linear growth rate using a phase-sensitive analysis method. For the conditions studied here, the growth rate increases as gas pressure decreases. At a critical gas pressure that I observe, a balance between an ion-flow instability and dissipation by neutral gas drag determines a threshold for wave propagation. A linear dispersion relation is derived, taking into account effects of strong coupling, to compare to the experiment. In Ch.4, I observe the development of nonlinearity in the naturally occurring dust-density wave by measuring harmonics of the fundamental. Using high-speed imaging, I measure amplitudes, wave numbers and growth rates for the fundamental and its harmonics. The amplitudes of the harmonics exhibit a strong exponential increase with diminishing gas pressure, and they saturate at lower gas pressures. My measurements show that the wave numbers and growth rates of harmonics are near integer multiples of the fundamental.
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Güttler, Carsten [Verfasser], and Jürgen [Akademischer Betreuer] Blum. "From Dust to Planets: Dust Aggregation in the Post-Fractal Growth Regime / Carsten Güttler ; Betreuer: Jürgen Blum." Braunschweig : Technische Universität Braunschweig, 2009. http://d-nb.info/1175829420/34.

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Mlitan, Abdulmajeed Bashir. "Effects of cement dust and its constituents on fungal growth." Thesis, University of Newcastle Upon Tyne, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.601751.

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Environmental pollution by cement is a serious problem and its effects on humans and plants have warranted careful attention in Libya in recent years as well as in the rest of the world, whereas the effects on fungi have not been investigated enough. This research aimed to investigate effects of cement dust pollution on fungal populations and how cement dust influences fungal growth. Soils and leaves from a cement-dust-polluted area near the Alkomos cement factory in Libya were studied. The physiochemical characteristics of soils in the study area indicate a strong influence by cement dusts that have settled 011 the soil from the cement factory. Calcium content and pH were higher than in similar unpolluted soils in this region. The dominance of fungi of soil and leaves was lowest at 100 m from the factory and the evenness and diversity increased at this site compared to the control area and 250 m from the factory . Variability and diversity of fungi were greater in the Summer (dry season) than the winter (rainy season). Aspergillus, Penicillium, and Fusarium were the most prevalent fungi isolated from contaminated samples.
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Couedel, Lenaic Gael Herve Fabien. "Nanoparticle formation and dynamics in a complex (dusty) plasma: from the plasma ignition to the afterglow." Thesis, The University of Sydney, 2008. http://hdl.handle.net/2123/4121.

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Complex (dusty) plasmas are a subject of growing interest. They areionized gases containing charged dust particles. In capacitively-coupled RF discharges, dust growth can occur naturally and two methods can be used to grow dust particles: chemically active plasmas or sputtering. The growth of dust particles in argon discharges by RF sputtering and the effect of dust particles on theplasma have been investigated from the plasma ignition to the afterglow. It was shown that plasma and discharge parameters are greatly affected by the dust particles. Furthermore, plasma instabilities can be triggered by the presence of the dust particles. These instabilities can be due to dust particle growth or they can be instabilities of a well established dust cloud filling the interelectrode space. When the discharge is switched off, the dust particles act like a sink for the charge carrier and consequently affect the plasma losses. It was shown that the dust particles do keep residual chargeswhich values are greatly affected by the diffusion of the charge carriers and especially the transition from ambipolar to free diffusion.
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Couedel, Lenaic Gael Herve Fabien. "Nanoparticle formation and dynamics in a complex (dusty) plasma: from the plasma ignition to the afterglow." University of Sydney, 2008. http://hdl.handle.net/2123/4121.

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Doctor of Philosophy(PhD)
Complex (dusty) plasmas are a subject of growing interest. They areionized gases containing charged dust particles. In capacitively-coupled RF discharges, dust growth can occur naturally and two methods can be used to grow dust particles: chemically active plasmas or sputtering. The growth of dust particles in argon discharges by RF sputtering and the effect of dust particles on theplasma have been investigated from the plasma ignition to the afterglow. It was shown that plasma and discharge parameters are greatly affected by the dust particles. Furthermore, plasma instabilities can be triggered by the presence of the dust particles. These instabilities can be due to dust particle growth or they can be instabilities of a well established dust cloud filling the interelectrode space. When the discharge is switched off, the dust particles act like a sink for the charge carrier and consequently affect the plasma losses. It was shown that the dust particles do keep residual chargeswhich values are greatly affected by the diffusion of the charge carriers and especially the transition from ambipolar to free diffusion.
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CARPENTER, WILLIAM JOSEPH. "Dust Grain Growth and Disk Evolution of a Set of Young Stellar Objects." University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1204639846.

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Okuzumi, Satoshi. "Theoretical Modeling of the Charging and Structure Evolution of Dust Aggregates in Protoplanetary Disks : Possible Discovery of an Electrostatic Barrier Against Dust Growth." Kyoto University, 2010. http://hdl.handle.net/2433/120430.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(人間・環境学)
甲第15464号
人博第494号
新制||人||121(附属図書館)
21||人博||494(吉田南総合図書館)
27942
京都大学大学院人間・環境学研究科相関環境学専攻
(主査)教授 阪上 雅昭, 准教授 小木曽 哲, 准教授 木下 俊哉, 助教 野村 英子
学位規則第4条第1項該当
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Elam, Robert J. "The Effects of Coal Dust Particulates on Growth Performance and Photomorphogenic Responses of Brassica Rapa." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1511869210184817.

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Andes, Glenda Gilmore. "The Effect of Carpet Fiber on the Growth of Dermataphagiodes farniae in a Controlled Environment." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/36256.

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Mites are endemic and allergy to mite excreta and parts is one of the most common allergies. Health care practitioners have recommended the removal of carpets from homes of people with mite allergies. Little, if any, consideration is given to the fact that some persons may benefit directly from the presence of carpet in their homes. In the allergen and mite research literature, carpets are rarely described as having unique characteristics and are generally referred to as a generic entity. Carpets, however, do have unique characteristics that define their construction, appearance, wearability, and cleanability. Seventy-two pieces of commercially available, residential flooring materials were inoculated with identical numbers of mites, Dermatophagiodes farinae, and placed in the Textiles Conditioning Lab at Virginia Tech. The mites and carpet pieces were maintained in the lab, under identical, environmentally controlled conditions for 6 weeks, then the mites were extracted and counted. On the basis of the results of statistical tests run on the study data, the null hypothesis, that there is no difference between the numbers of mites grown on the different flooring conditions, was rejected. Statistically significant differences exist between the hard floor and the nylon carpet, between hard floor and olefin carpets, but no difference between hard floor and wool carpet. Nylon was the carpet fiber that was most supportive of the growth of house dust mites, olefin was the second most supportive, and wool carpet and hard floor were similar in being the least supportive.
Master of Science
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De, Necker Adele. "The development of a strategic plan for a company in the dust suppression industry / de Necker A." Thesis, North-West University, 2011. http://hdl.handle.net/10394/7377.

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The general aim of this study was to develop a strategic plan for a company in the dust suppression industry. Currently there is no formal process documented or analysis done within the company regarding strategic planning due to the company being founded, extensive growth taking place year on year and the urgent need for the operations to be established, in order for the company to start selling their products and services. The study was conducted among a sample of 45 junior, middle and senior management employees within this company. The data collected from the participants were collected personally via interviews and a strategic planning questionnaire and recorded electronically by the Statistical Consultation Services at the North–West University and the data were analysed by means of the Statistical Package for Social Sciences (SPSS V18). In addition to the structured questionnaires, management was also interviewed to assess their views on the strategic planning at the company. The results and findings indicated that there was some strategic planning actions lacking and that formal strategic planning that defines objectives and assessment of the various situations within the company, are not properly performed. The author was however able to evaluate and determine where the company is going over the next three years. The study draws a number of conclusions and makes recommendations with regard to strategic planning, one of which is that the company should follow a more structured and formalised approach.
Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2012.
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Books on the topic "Dust growth"

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Chris, Seay, and Capes David B, eds. The dust off their feet: Lessons from the first church : the book of Acts. Nashville, TN: Nelson Bibles, 2006.

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Dech, Jeffery Peter. Population establishment of Galerucella pusilla (Duft.) and G. calmariensis (L.) (Coleoptera: Chrysomelidae) and their relative impact on the growth of Lythrum salicaria L. (Myrtiflorae: Lythraceae) in two central Ontario wetlands. Sudbury, Ont: Laurentian University, Department of Biology, 2000.

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Tada, Joni Eareckson. Diamonds in the Dust A Journal for Reflection and Growth. Zondervan Publishing House, 1996.

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Colloff, Matthew J. Dust Mites. CSIRO Publishing, 2009. http://dx.doi.org/10.1071/9780643100497.

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Dust mites are present in almost every home – in our beds, clothing and carpets. Conservatively, at least 100 million people are affected by house dust mite allergy worldwide, manifesting itself as asthma, rhinitis or atopic dermatitis. Despite the growing recognition of this major public health problem, there is still no simple, effective, generally applicable strategy for dust mite control. Dust Mites incorporates for the first time in a single volume the topics of systematics and identification, physiology, ecology, allergen biochemistry and molecular biology, epidemiology, mite control and allergen avoidance. It explains key biological and ecological concepts for non-specialist readers, discusses ecological research methods and includes identification keys to dust mite species and life-cycle stage. It also explores how characteristics of population growth, water balance and physiology of dust mites have contributed to their importance as allergenic organisms. Many chapters contain new data, or new analyses of existing data, including global distribution maps of the most important species. Importantly, the book emphasises that studies of the biology and ecology of house dust mites should be regarded within the context of allergic disease rather than as ends in themselves, and that approaches to mite control in clinical management are subject to the same series of ecological rules as any other major problem in pest management. This comprehensive reference is essential reading for anyone involved or interested in house dust mite research and management.
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Ammirati, Sean. Science of Growth: How Facebook Beat Friendster--And How Nine Other Startups Left the Rest in the Dust. St. Martin's Press, 2016.

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The science of growth: How Facebook beat Friendster-- and how nine other startups left the rest in the dust. St. Martin's Press, 2016.

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Creations, Tick Tock. All You Need Is Faith Trust and a Little Unicorn Dust: Motivational, Goal Setting, Personal Growth, Creativity Planner/Journal/Notebook Cute 6 X 9 200 Pages Daily Goal Setting Gift for Women. Independently Published, 2018.

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deBuys, William. A Great Aridness. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199778928.001.0001.

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With its soaring azure sky and stark landscapes, the American Southwest is one of the most hauntingly beautiful regions on earth. Yet staggering population growth, combined with the intensifying effects of climate change, is driving the oasis-based society close to the brink of a Dust-Bowl-scale catastrophe. In A Great Aridness, William deBuys paints a compelling picture of what the Southwest might look like when the heat turns up and the water runs out. This semi-arid land, vulnerable to water shortages, rising temperatures, wildfires, and a host of other environmental challenges, is poised to bear the heaviest consequences of global environmental change in the United States. Examining interrelated factors such as vanishing wildlife, forest die backs, and the over-allocation of the already stressed Colorado River--upon which nearly 30 million people depend--the author narrates the landscape's history--and future. He tells the inspiring stories of the climatologists and others who are helping untangle the complex, interlocking causes and effects of global warming. And while the fate of this region may seem at first blush to be of merely local interest, what happens in the Southwest, deBuys suggests, will provide a glimpse of what other mid-latitude arid lands worldwide--the Mediterranean Basin, southern Africa, and the Middle East--will experience in the coming years. Written with an elegance that recalls the prose of John McPhee and Wallace Stegner, A Great Aridness offers an unflinching look at the dramatic effects of climate change occurring right now in our own backyard.
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Lamont, Craig. The Cultural Memory of Georgian Glasgow. Edinburgh University Press, 2021. http://dx.doi.org/10.3366/edinburgh/9781474443272.001.0001.

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This book provides a long overdue reading of Scotland’s largest city as it was during the long eighteenth century. These formative years of Enlightenment, caught between the tumultuous ages of the Reformation and the Industrial Revolution, cast Glasgow in a new and vibrant light. Far from being a dusty metropolis lying in wait for the famous age of shipbuilding, Glasgow was already an imperial hub: as implicated in mass migration and slavery as it was in civic growth and social progression. Craig Lamont incorporates case studies such as the Scottish Enlightenment, the Transatlantic Slave Trade and Eighteenth Century Print Culture to investigate how the city was shaped by the emergence of new trades and new ventures in philosophy, fine art, science, and religion. The book merges historical, literary and memory studies to provide an original blueprint for new research into other cities or civic spaces.
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MBA, Nat Chiaffarano. How to Turn Your Air Duct Cleaning Service into a Real Moneymaker: Innovative Differentiation, Growth and Marketing Strategies to Crush Your Competition. Independently Published, 2017.

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Book chapters on the topic "Dust growth"

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Benz, Willy. "Low Velocity Collisions and the Growth of Planetesimals." In From Dust to Terrestrial Planets, 279–94. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4146-8_18.

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Kimura, Yuki, and Katsuo Tsukamoto. "Homogeneous Nucleation of Smoke Particles and Its Relationship with Cosmic Dust Particles." In New Perspectives on Mineral Nucleation and Growth, 339–51. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45669-0_17.

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Takeuchi, T. "From Protoplanetary Disks to Planetary Disks: Gas Dispersal and Dust Growth." In Small Bodies in Planetary Systems, 1–35. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-76935-4_1.

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Melzer, André. "Particle Growth in Dusty Plasmas and Applications." In Physics of Dusty Plasmas, 199–211. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20260-6_11.

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Boeck, Thomas, Dmitry Krasnov, Maurice Rossi, and Oleg Zikanov. "Transient growth in MHD duct flow." In Springer Proceedings in Physics, 829–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03085-7_199.

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Khare, Sarth. "Gurgaon: Unfinished City, a photographic essay." In Embodying Peripheries, 258–73. Florence: Firenze University Press, 2022. http://dx.doi.org/10.36253/978-88-5518-661-2.12.

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As Gurgaon expands horizontally and vertically, it continues to transition from farms to urban villages to a concrete maze. This photographic project documents the growth of Gurgaon a city recently developed near India's capital, Delhi. It is a booming financial and industrial center, home to most Multinational Corporations (MNCs) and has third highest per-capita income in India. As its advocates often like to point out, Delhi’s booming neighbor has 1,100 high-rises, at least 30 malls and thousands of small and big industries. On the other hand, as its detractors unfailingly like to note, the dust bowl’s population has grown two and a half fold, it has 12-hour power blackouts, and its groundwater would probably not last beyond this decade. Gurgaon's transformation began sometime around 1996, with the advent of Genpact, then a business unit of General Electric. Other multinational companies followed it slowly thereafter. It helped that the city was a few kilometers away from Delhi. Two decades on, Gurgaon is already "on its deathbed." From 0.8 million in 2001, the city is expected to reach a population of 6.9 million in 2031. It is speckled with glass buildings with curtain walls, and swish apartment blocks with Greco-Roman influences, but there is little water or power for them. These numbers alone don’t capture the lived reality of Gurgaon, though. The skyline that its older residents were accustomed to has completely disappeared. And yet on the periphery, one sees the "Unfinished City" growing. The landscapes and flora shouting; their sentiments brutalized by evictions and concrete. Slaughtered farms now seem witness to monstrosity with desolate faces and fading memories. Set in 2014 the project explores the ephemerality of Gurgaon’s glamor and defective town planning. Families had been displaced, laborers’ children were growing up on heaps of cement, and farmlands had turned into things of memories.
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Rosenberg, M. "Some Physical Processes in Dusty Plasmas." In Physics of Space: Growth Points and Problems, 125–33. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0904-1_15.

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Khujadze, George R., Stefaan Poedts, and Andria D. Rogava. "Shear Induced Phenomena in Dusty Plasma Flows." In Physics of Space: Growth Points and Problems, 135–38. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0904-1_16.

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Elbaz, D., and E. Moy. "Dusty Starbursts and the Growth of Cosmic Structure." In Multiwavelength Cosmology, 173–76. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/0-306-48570-2_36.

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Lemaire, I., S. Massé, and H. Beaudoin. "Alveolar Macrophage-derived Growth Factor for Fibroblasts: A Potential Mediator of Asbestos-induced Fibrosis." In In Vitro Effects of Mineral Dusts, 459–65. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70630-1_58.

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Conference papers on the topic "Dust growth"

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Tanaka, Hidekazu, Koji Wada, Toru Suyama, Tomonori Usuda, Motohide Tamura, and Miki Ishii. "Dust Growth in Protoplanetary Disks." In EXOPLANETS AND DISKS: THEIR FORMATION AND DIVERSITY: Proceedings of the International Conference. AIP, 2009. http://dx.doi.org/10.1063/1.3215924.

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Churton, B., L. Couëdel, A. A. Samarian, M. Mikikian, L. Boufendi, José Tito Mendonça, David P. Resendes, and Padma K. Shukla. "Dust Growth by RF Sputtering." In MULTIFACETS OF DUSTRY PLASMAS: Fifth International Conference on the Physics of Dusty Plasmas. AIP, 2008. http://dx.doi.org/10.1063/1.2996830.

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Bingham, R. "Dust Growth in Astrophysical Plasmas." In DUSTY PLASMAS IN THE NEW MILLENNIUM: Third Conference on the Physics of Dusty Plasmas. AIP, 2002. http://dx.doi.org/10.1063/1.1527744.

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Wada, Koji, Hidekazu Tanaka, Toru Suyama, Hiroshi Kimura, Tetsuo Yamamoto, Tomonori Usuda, Motohide Tamura, and Miki Ishii. "Numerical Simulation of Dust Aggregate Collisions: Growth and Disruption of Dust Aggregates." In EXOPLANETS AND DISKS: THEIR FORMATION AND DIVERSITY: Proceedings of the International Conference. AIP, 2009. http://dx.doi.org/10.1063/1.3215805.

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Peng, Y., R. Hugon, F. Brochard, J. L. Vasseur, D. Lacroix, C. Brosset, J. Bougdira, et al. "Carbon Dust Growth in a Radiofrequency Discharge." In PLASMA 2007: International Conference on Research and Applications of Plasmas; 4th German-Polish Conference on Plasma Diagnostics for Fusion and Applications; 6th French-Polish Seminar on Thermal Plasma in Space and Laboratory. AIP, 2008. http://dx.doi.org/10.1063/1.2909165.

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Takeuchi, Taku, Tomonori Usuda, Motohide Tamura, and Miki Ishii. "Growth of Settling Dust Particles in Turbulent Disks." In EXOPLANETS AND DISKS: THEIR FORMATION AND DIVERSITY: Proceedings of the International Conference. AIP, 2009. http://dx.doi.org/10.1063/1.3215833.

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Mikikian, M. "Dust Particles Growth and Behavior under Microgravity Conditions." In DUSTY PLASMAS IN THE NEW MILLENNIUM: Third Conference on the Physics of Dusty Plasmas. AIP, 2002. http://dx.doi.org/10.1063/1.1527745.

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Mikikian, M. "Dust Growth Instabilities in a Dense Cloud of Particles." In NEW VISTAS IN DUSTY PLASMAS: Fourth International Conference on the Physics of Dusty Plasmas. AIP, 2005. http://dx.doi.org/10.1063/1.2134629.

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Boufendi, L., El-Hachemi Amara, Saïd Boudjemai, and Djamila Doumaz. "Dust Particle Growth and Application in Low Temperature Plasmas." In LASER AND PLASMA APPLICATIONS IN MATERIALS SCIENCE: First International Conference on Laser Plasma Applications in Materials Science—LAPAMS’08. AIP, 2008. http://dx.doi.org/10.1063/1.2999973.

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Bingham, R. "Dust Growth and Gravitation-like Instabilities in Astrophysical Plasmas." In PLASMA PHYSICS: 11th International Congress on Plasma Physics: ICPP2002. AIP, 2003. http://dx.doi.org/10.1063/1.1593983.

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Reports on the topic "Dust growth"

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Li, Shengtai. Understanding Asymmetry Formation in Dusty Proto-Planetary Disks with Dust-Growth Model. Office of Scientific and Technical Information (OSTI), March 2019. http://dx.doi.org/10.2172/1501787.

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Stangl, Sarah. Dust Formation and Growth in Supernovae Explosions. Office of Scientific and Technical Information (OSTI), April 2021. http://dx.doi.org/10.2172/1778758.

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Stangl, Sarah. Dust Formation and Growth in Core Collapse Supernovae Explosions. Office of Scientific and Technical Information (OSTI), April 2021. http://dx.doi.org/10.2172/1779659.

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Thurston, Alison, Zoe Courville, Lauren Farnsworth, Ross Lieblappen, Shelby Rosten, John Fegyveresi, Stacy Doherty, Robert Jones, and Robyn Barbato. Microscale dynamics between dust and microorganisms in alpine snowpack. Engineer Research and Development Center (U.S.), March 2021. http://dx.doi.org/10.21079/11681/40079.

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Dust particles carry microbial and chemical signatures from source regions to deposition regions. Dust and its occupying microorganisms are incorporated into, and can alter, snowpack physical properties including snow structure and resultant radiative and mechanical properties that in turn affect larger-scale properties, including surrounding hydrology and maneuverability. Microorganisms attached to deposited dust maintain genetic evidence of source substrates and can be potentially used as bio-sensors. The objective of this study was to investigate the impact of dust-associated microbial deposition on snowpack and microstructure. As part of this effort, we characterized the microbial communities deposited through dust transport, examined dust provenance, and identified the microscale location and fate of dust within a changing snow matrix. We found dust characteristics varied with deposition event and that dust particles were generally embedded in the snow grains, with a small fraction of the dust particles residing on the exterior of the snow matrix. Dust deposition appears to retard expected late season snow grain growth. Both bacteria and fungi were identified in the collected snow samples.
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Gallagher, Alex, Sandra LeGrand, Taylor Hodgdon, and Theodore Letcher. Simulating environmental conditions for Southwest United States convective dust storms using the Weather Research and Forecasting Model v4.1. Engineer Research and Development Center (U.S.), August 2022. http://dx.doi.org/10.21079/11681/44963.

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Dust aerosols can pose a significant detriment to public health, transportation, and tactical operations through reductions in air quality and visibility. Thus, accurate model forecasts of dust emission and transport are essential to decision makers. While a large number of studies have advanced the understanding and predictability of dust storms, the majority of existing literature considers dust production and forcing conditions of the underlying meteorology independently of each other. Our study works to-wards filling this research gap by inventorying dust-event case studies forced by convective activity in the Desert Southwest United States, simulating select representative case studies using several configurations of the Weather Research and Forecasting (WRF) model, testing the sensitivity of forecasts to essential model parameters, and assessing overall forecast skill using variables essential to dust production and transport. We found our control configuration captured the initiation, evolution, and storm structure of a variety of convective features admirably well. Peak wind speeds were well represented, but we found that simulated events arrived up to 2 hours earlier or later than observed. Our results show that convective storms are highly sensitive to initialization time and initial conditions that can preemptively dry the atmosphere and suppress the growth of convective storms.
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Seginer, Ido, Louis D. Albright, and Robert W. Langhans. On-line Fault Detection and Diagnosis for Greenhouse Environmental Control. United States Department of Agriculture, February 2001. http://dx.doi.org/10.32747/2001.7575271.bard.

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Background Early detection and identification of faulty greenhouse operation is essential, if losses are to be minimized by taking immediate corrective actions. Automatic detection and identification would also free the greenhouse manager to tend to his other business. Original objectives The general objective was to develop a method, or methods, for the detection, identification and accommodation of faults in the greenhouse. More specific objectives were as follows: 1. Develop accurate systems models, which will enable the detection of small deviations from normal behavior (of sensors, control, structure and crop). 2. Using these models, develop algorithms for an early detection of deviations from the normal. 3. Develop identifying procedures for the most important faults. 4. Develop accommodation procedures while awaiting a repair. The Technion team focused on the shoot environment and the Cornell University team focused on the root environment. Achievements Models: Accurate models were developed for both shoot and root environment in the greenhouse, utilizing neural networks, sometimes combined with robust physical models (hybrid models). Suitable adaptation methods were also successfully developed. The accuracy was sufficient to allow detection of frequently occurring sensor and equipment faults from common measurements. A large data base, covering a wide range of weather conditions, is required for best results. This data base can be created from in-situ routine measurements. Detection and isolation: A robust detection and isolation (formerly referred to as 'identification') method has been developed, which is capable of separating the effect of faults from model inaccuracies and disturbance effects. Sensor and equipment faults: Good detection capabilities have been demonstrated for sensor and equipment failures in both the shoot and root environment. Water stress detection: An excitation method of the shoot environment has been developed, which successfully detected water stress, as soon as the transpiration rate dropped from its normal level. Due to unavailability of suitable monitoring equipment for the root environment, crop faults could not be detected from measurements in the root zone. Dust: The effect of screen clogging by dust has been quantified. Implications Sensor and equipment fault detection and isolation is at a stage where it could be introduced into well equipped and maintained commercial greenhouses on a trial basis. Detection of crop problems requires further work. Dr. Peleg was primarily responsible for developing and implementing the innovative data analysis tools. The cooperation was particularly enhanced by Dr. Peleg's three summer sabbaticals at the ARS, Northem Plains Agricultural Research Laboratory, in Sidney, Montana. Switching from multi-band to hyperspectral remote sensing technology during the last 2 years of the project was advantageous by expanding the scope of detected plant growth attributes e.g. Yield, Leaf Nitrate, Biomass and Sugar Content of sugar beets. However, it disrupted the continuity of the project which was originally planned on a 2 year crop rotation cycle of sugar beets and multiple crops (com and wheat), as commonly planted in eastern Montana. Consequently, at the end of the second year we submitted a continuation BARD proposal which was turned down for funding. This severely hampered our ability to validate our findings as originally planned in a 4-year crop rotation cycle. Thankfully, BARD consented to our request for a one year extension of the project without additional funding. This enabled us to develop most of the methodology for implementing and running the hyperspectral remote sensing system and develop the new analytical tools for solving the non-repeatability problem and analyzing the huge hyperspectral image cube datasets. However, without validation of these tools over a ful14-year crop rotation cycle this project shall remain essentially unfinished. Should the findings of this report prompt the BARD management to encourage us to resubmit our continuation research proposal, we shall be happy to do so.
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He, zhe, liwei Xing, ming He, yuhuan Sun, jinlong Xu, and rong Zhao. Effect of Acupuncture on Mammary Gland Hyperplasia (MGH): a Bayesian network meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, September 2022. http://dx.doi.org/10.37766/inplasy2022.9.0058.

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Review question / Objective: This review aims at conducting a network meta-analysis to assess the potential therapeutic effectiveness and safety of acupuncture therapy for the treatment of MGH. Condition being studied: MGH is a benign breast disease caused by excessive growth of mammary duct epithelial cells and interstitial fibers. Its prevalence rate among women of childbearing age is about 13.5-42%, accounting for 99.3% of the total number of patients with breast related diseases, and its possibility of developing breast cancer can reach 5-10%. Breast hyperplasia can cause clinical symptoms such as breast pain, breast lump, nipple pigmentation and mood fluctuation, which brings severe physical and mental burden to patients. Modern medicine believes that the pathogenesis of MGH is related to sexual hormone disorder secondary to hypothalamus pituitary ovary axis dysfunction.At present, the treatment options of MGH are limited and not completely effective. The commonly used drugs in clinical practice, such as tamoxifen, danazol and goserelin, are expensive, which may lead to breast pain, swelling and increase of interstitial fibrous nodules, and the long-term use of MGH has huge side effects. The clinical guidelines recommend that the use time should be 2 to 6 months. Therefore, it is necessary to seek a treatment method of MGH that is effective, stable and safe.
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Stoyanov, Vladislav, Dragomir Dardanov, Elena Arabadzhieva, Atanas Yonkov, Sasho Bonev, Dimitar Bulanov, Julieta Hristova, Lilia Simonova, Violeta Dimitrova, and Dobrin Svinarov. Diagnostic Significance of Cholangiocarcinoma-associated Carbohydrate Antigen (CCA-CA) and Insulin-like Growth Factor 1 (IGF-1) in Blood Serum and Bile in Patients with Extrahepatic Bile Duct Cancer and Obstructive Jaundice. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, September 2019. http://dx.doi.org/10.7546/crabs.2019.09.17.

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