Готові списки джерел за темами / Cadmium distribution

Добірка наукової літератури з теми "Cadmium distribution"

Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 28 січня 2023

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Статті в журналах з теми "Cadmium distribution"

Lichner, Ľ., and A. Čipáková. "Cadmium distribution coefficeints and Cd transport in structured soils." Plant, Soil and Environment 48, No. 3 (December 11, 2011): 96–100. http://dx.doi.org/10.17221/4206-pse.

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In the case of cadmium transport via soil macropores, the short-term duration of an interaction between the reactive solute in aqueous phase and soil, as well as cadmium precipitation or adsorption on particles < 10–5 m should be taken into account. Two distribution coefficients are proposed for predicting the cadmium transport in a structured soil: the matrix distribution coefficient Kdm, equal to the equilibrium distribution coefficient Kdeq and estimated using the conventional batch technique, and the macropore distribution coefficient KdM, estimated using the modified batch technique. It was found that the conventional approach (using the coefficient Kdeq only) would underestimate a penetration of the part of Cd transported in the macropores about 255-times in the loamy-sand soil in Kalinkovo, 20-times in the loam soil in Macov, and 122-times in the clay soil in Jurová in comparison with the approach proposed in this study.

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Song, Xue Ying, Xiao Jun Hu, Cai Xia Jin, Ji Song Yang, Hong Liang Chen, Yong Xia Hou, and Yu Shuang Li. "Cadmium Migration and Distribution Process." Advanced Materials Research 518-523 (May 2012): 1873–76. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.1873.

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The significant pollution accidents which not only threaten public health and public property safety, but also bring major disaster, have become the world concerning environmental problems. The migration process and feature of CdCl2 in the vertical and horizontal profiles of soil were studied by the stimulating experiment to present the theory for the treatment of significant pollution accident. The column leaching device was taken to simulate the vertical and horizontal migration of CdCl2 in the soil profile under two-phase rainfall during 16 days. The portable manual control negative pressure pump was taken to extract soil solution sample and the CdCl2 concentration was determined by the atomic absorption spectrophotometer. Results showed that during the whole experiment, the obvious horizontal and vertical migration features of CdCl2 appeared. The CdCl2 covered the whole horizontal profile in 0.5 h and the whole vertical profile in 146 hours. The relative variation rate of CdCl2 in the different depth of bulk showed that the rapid passing time differed in the different depths. The simulating device used in this paper could well investigate the vertical and horizontal distribution and migration of contaminant. Under the condition of greater rainfall, the CdCl2 gave priority to the horizontal runoff in the surface soil, followed by the vertical migration.

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QH, Zhu, Huang DY, Liu SL, Luo ZC, Rao ZX, Cao XL, and Ren XF. "Accumulation and subcellular distribution of cadmium in ramie (Boehmeria nivea L. Gaud.) planted on elevated soil cadmium contents." Plant, Soil and Environment 59, No. 2 (January 15, 2013): 57–61. http://dx.doi.org/10.17221/439/2012-pse.

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The tolerance, accumulation and subcellular distribution characteristics of cadmium (Cd) in ramie (Boehmeria nivea L. Gaud.) were investigated using a 2-year field experiment. The results indicated that ramie has a certain extent of tolerance to soil Cd (≤ 20 mg/kg) contamination with no significant decrease in shoot biomass and fibre yield relative to control conditions. Although ramie did not hyperaccumulate Cd, it accumulated considerable amount of Cd in the aboveground parts (approximately 0.19 to 1.09 kg/ha annually). The Cd contents retained in ramie tissues were found in order of roots > stems > leaves. Further, regarding the subcellular distribution of Cd in ramie tissues, 80% of the total Cd was bound to the cell walls of the roots and stems, whereas in leaves the proportion of Cd stored in the cell wall fraction was around 60% and a lesser amount of Cd was stored in the soluble fraction (24.1–25.5%). Our collective results indicated that ramie adapts to Cd stress via the store of a large amount of Cd in cell walls, and suggested potential usefulness of ramie in the phytoremediation of Cd-contaminated farmlands.

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Cai, Zhuo, Xiao Liang He, Deng Feng Lu, Xia Lin Qiu, and Wei Chao Yue. "Distribution of Cadmium in Aloe Vera and its Hazard Impact on the Antioxidant Activity." Advanced Materials Research 610-613 (December 2012): 306–10. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.306.

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The variation of antioxidant activity of aloe vera under the stress of cadmium with different concentration was studied. The scavenging capacity of potted aloe vera to •OH and O2- • was determined and the effects of cadmium pollution on the antioxidant activity of aloe vera were evaluated using flow injection chemiluminescence methods.The results showed that, at low cadmium pollution level, the antioxidant activity of aloe vera increased with the increase of cadmium content in aloe vera body; while at high cadmium pollution level, the antioxidant activity of aloe vera decreased with the increase of cadmium content. This indicated that low cadmium could stimulate the self-protection system of aloe vera, resulting in a increase in the antioxidant activity. high cadmium would damage aloe self-defendend system, leading to the decrease in antioxidant activity.

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KUDO, Isao, and Katsuhiko MATSUNAGA. "Distribution of cadmium in Lake Tohya." Japanese Journal of Limnology (Rikusuigaku Zasshi) 47, no. 4 (1986): 351–54. http://dx.doi.org/10.3739/rikusui.47.351.

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Perkkiö, S., S. Manninen, and T. Paakkari. "Electron momentum distribution in cadmium sulfide." Physical Review B 40, no. 12 (October 15, 1989): 8446–51. http://dx.doi.org/10.1103/physrevb.40.8446.

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Fazlieva, Anna S., Elza N. Usmanova, Rustem A. Daukaev, Denis O. Karimov, Yana V. Valova, Denis A. Smolyankin, and Samat S. Baygildin. "Cadmium distribution and metallothionein expression in rat organs following acute intoxication." Hygiene and sanitation 99, no. 9 (October 20, 2020): 1011–15. http://dx.doi.org/10.47470/0016-9900-2020-99-9-1011-1015.

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Introduction. This article presents the results of experimental simulation of the acute toxic effect of cadmium on the rat organism, its distribution in the liver, and kidneys. Activation of the protective mechanism against toxic metal through the metallothionein protein has to reduce the bioavailability of free cadmium. Material and methods. The study was conducted on rats weighing 140-190 g, which was once intragastrically injected with cadmium chloride in an amount of 1/20 LD50. We studied the time intervals: before intoxication, 1, 2, 4, 6, 24, 48, and 96 hours after inoculation. The accumulation of cadmium in the liver and kidneys was measured by atomic absorption spectrometry. The expression of the metallothionein gene (МТ1, МТ2А, МТ3) was determined using RT-PCR on RNA isolated from the same organs. Results. Quantitative differences in the metal content in the liver and kidneys are observed 1 hour after intoxication, with a cadmium content of 250 and 125 times higher than in the control groups, respectively. There is an accumulation of cadmium in the liver with a maximum after 6 hours, and then its redistribution to the kidneys. The pronounced expression of metallothionein with a single acute exposure to cadmium is tissue-specific, so the expression of the MT1 and MT2A genes was greatest in the liver and the MT3 gene in the kidneys. Discussion. After administration cadmium is mainly localized in hepatocytes and its concentration may exceed the ability of metallothionein to bind cadmium ions, which leads to histopathological changes in the liver. In response to the intake of metal in the cell, the expression pattern of many genes, including those associated with the activation of protective reactions, changes. Conclusion. Our data show a single exposure to cadmium to lead to an increase in the content of MT transcript in the liver and kidneys, simultaneously with the accumulation of metal in them. The nature of this accumulation depends on the organ, on the time of exposure, and gene expression also on the form of MT.

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Linnik, R. M., and I. V. Iskra. "Cadmium in the Dnieper River: distribution, speciation and interaction with organic ligands." River Systems 10, no. 1-4 (September 18, 1996): 559–64. http://dx.doi.org/10.1127/lr/10/1996/559.

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MATA, LUIS, M. DOLORES PEREZ, PILAR PUYOL, and MIGUEL CALVO. "Distribution of Added Lead and Cadmium in Human and Bovine Milk." Journal of Food Protection 58, no. 3 (March 1, 1995): 305–9. http://dx.doi.org/10.4315/0362-028x-58.3.305.

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Distribution of added lead and cadmium to bovine and human milk and whey has been studied. In bovine milk, about 97 and 89% of lead and cadmium, respectively, were recovered in the casein fraction obtained by enzymatic coagulation. However, only 6% of lead and 41% of cadmium were found in the same fraction separated by acid precipitation, indicating that the distribution of both metals is very different depending on the method used for milk fractionation. Moreover, gel filtration of bovine and human skimmed milk and whey after addition of lead and cadmium was carried out. Most of the lead was associated to the casein fraction after gel filtration of skimmed milk, whereas in the chromatography of whey, lead was eluted with the low molecular weight fraction in both species. However, a different pattern in the distribution of cadmium has been observed in the two species studied. In contrast to the binding of cadmium to the low molecular weight fraction in human skimmed milk and whey, it was mainly associated to a component of a molecular weight around 70,000 in bovine skimmed milk. This component was not present in bovine whey indicating that it is separated with casein during fractionation.

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Jin, P., and P. L. Bishop. "Cadmium transfer and distribution in a multi-species biofilm and the impact on naphthalene removal." Water Science and Technology 52, no. 7 (October 1, 2005): 41–47. http://dx.doi.org/10.2166/wst.2005.0179.

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Biofilm technology is being introduced into bioremediation of contaminated soils and underground water, in the form of biofilm barriers. However, the low availability of polycyclic aromatic hydrocarbons (PAHs) and toxicity of the frequently accompanying heavy metals may limit its application. The objective of this study was to investigate the mass transfer and distribution of cadmium (Cd) into the biofilm matrix and the impact caused by it. The influences of pH value, presence of an alternative substrate and increased dissolved oxygen were examined. As the pH value increased, cadmium sorption in the biofilm increased and naphthalene removal decreased. Ten mg/L of cadmium was enough to show a significant impact on biofilm when the pH was above 7.5. The cadmium minimum inhibition capacity was determined to be 5μgCd/mgVS. Acetate, added as an alternative substrate, competed with naphthalene and did not demonstrate the ability to reduce cadmium toxicity. Hydrogen peroxide, added to supplement the dissolved oxygen, accelerated the cadmium uptake/efflux cycle, making the biofilm more vulnerable to cadmium attack. Cadmium was shown to transfer faster than naphthalene into biofilm, and the removal of naphthalene in the presence of cadmium was retarded and reduced.

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Дисертації з теми "Cadmium distribution"

Pitcher, P. G. "Distribution of electrically active centres in boron implanted cadmium mercury telluride." Thesis, University of Surrey, 1986. http://epubs.surrey.ac.uk/847907/.

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The objective of this work was to investigate the distribution of donor-like centres produced by boron implantation into p-type, Bridgeman grown Hg[0.8]Cd[0.2]Te and fabricate photodiodes from implanted substrates. Low carrier concentration substrates, 4-5x10[16]cm[-3], were implanted at room temperature with dose rates (&phis;) of 4x10[-2] or 6x10[-3]muAcm[-2], to a total dose of 1 x 10[15]B[+] cm[-2] (50,100keV) or 1x10[14]B[+]cm[-2] (150keV), respectively. Encapsulated specimens were annealed at 200°C or 235°C to activate the dopant or redistribute electrically active radiation damage centres to produce p-n junctions. The effects of materials processing on Hg[l-x]Cd[x]Te was investigated by x-ray photoelectron spectroscopy. Concentration profiles of electrically active centres were obtained from differential measurements of the Hall effect and resistivity at 77K. Through a comparison of distributions in as-implanted and annealed samples, the nature of donor-like centres forming the distributions were established. The quality of photodiodes produced from identical samples was assessed through current-voltage, capacitance-voltage and optoelectronic measurements. The nature and distribution of donor-like centres are dependent upon the dose rate of boron ions. An immobile defect is contained within the implanted region. Mercury interstitials (Hg[int]) are complexed within the implanted region for &phis; > 4x10[-2] muAcm[-2]. Irradiation enhanced diffusion of Hg[int] occurs if &phis; < 6x10[-3] muAcm[-2]. Thermal annealing redistributes bound and unbound accompanied by recombination with mercury vacancies and the formation of electrically neutral complexes. Annealing at 235°C for 10 mins completely removes the donor-like activity ascribed to Hg's [int] and reduces the concentration of electrically active immobile defects. P-N junctions are formed between the mercury vacancy distribution and unbound Hg's[int] or the immobile damage centres in annealed substrates. Junction formation is inhibited by the formation of the bound Hg[int] complex. Optimum R[o]A[j] products may be obtained from junctions formed from the immobile defect centre, although degradation of the implanted region occurs after annealing at 235°C. Anodic oxides grow by the differential electromigration of ions, which can produce a passivating layer to further anodization. The native oxide on Hg[0.8] Cd[0.2] Te is an ill-defined chemical mixture of the primary elements (Cd, Hg, Te). Native oxides degrade the R[o]A product of p-n junctions.

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Milton, Adrian Mark. "Heavy metals in contaminated grassland ecosystems : distribution, transfer and effects." Thesis, University of Liverpool, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266222.

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Nouri, Hassan. "Erosion and electrode energy distribution in switches with silver-cadmium-oxide contacts." Thesis, University of Plymouth, 1990. http://hdl.handle.net/10026.1/2391.

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The cathode and the anode fall of the DC arcs are measured by fast oscilloscope for Ag-CdO contacts over a range of gap-lengths from 0.05 mm to 1 mm, and currents of 4-10 Amps at atmospheric pressure, with a known electrode closing speed, using the Moving Electrode Method. It was observed that the anode fall can occur in a few places within the arc voltage waveform, and is dependent of the electrodes' surface condition. Both cathode and anode falls increase with gap-length and decrease with current. It was found that when arc length is shorter than electrode separation, discontinuity within the arc voltage waveform during closure is caused, in many cases, by vapourisation of the first point of contact or by a high electric field set up between the two electrodes. These discontinuities are named as Voltage Step Phenomena. These voltage steps are related to the cathode and anode fall voltages, and their regular occurrences are a function of surface roughness. The fluctuations in the arc voltage waveform are thought to originate mainly from the cathode. A technique has been developed to measure the temperature of the electrodes accurately by using a T-type thermocouple, 0.075 mm diameter, in conjunction with a DC amplifier with a gain of 247. The thermocouple is placed as close as possible under the electrode surface (200 µm). This enables the temperature of the contact to be measured, after breaking contact, for an arc-duration even as short as 1ms. The time-constant of the probe (contact containing the thermocouple) is measured to be approximately 18ms. With this technique the temperature of the electrodes are measured for currents and gap-lengths ranging 4-10 Amps and 0.05-1 mm respectively. The effect of contacts being new and change of polarity have been investigated. From these results it is concluded that the co-existence of layers of foreign material on one, or both, surfaces causes the temperature of the electrodes to be high for the first 50-100 operations, before reaching to steady-state conditions. Change of polarity suggests that the moving electrode, either anode or cathode, due to the effect of air movement over its surface, is cooled relative to when fixed. The power transfer to the electrodes is calculated for various currents and gap-length using thermal analogue formulae derived from the transient response of an RC circuit to a d.c. pulse. The results show that below 0.2 mm the sum of the anode and cathode power is approximately equal to the arc power, and hence losses are negligible. At around 0.125 mm, for currents of about 6A and 12A, they both receive an equal amount of power from the arc. This has been related to the thermal energy of the electrons being negligible, at such separation, at the anode end of the plasma column. The power balance equations are solved to calculate the positive ion current to the cathode, and the thermal energy of the electrons in the plasma column, under various test conditions. In the investigation of erosion, the S.E.M. studies show that most of the power dissipated on the surface of the electrodes is used in melting and evaporation. The x-ray analysis shows that the melted metal is composed mostly of Silver. To operate the test rig and collect the generated data automatically, a computerised test system, with a mini data acquisition system, has been designed and constructed here.

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Demuynck, Sylvain. "Identification des métalloprotéines (myohémérythrine et hémoglobine) liant le cadmium chez l'annélide polychète endobenthique Nereis diversicolor : distribution tissulaire et cinétique du métal en conditions expérimentales." Lille 1, 1992. http://www.theses.fr/1992LIL10120.

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Cette thèse a été effectuée dans le laboratoire d'écotoxicologie étudiant les phénomènes physico-chimiques et biologiques qui conditionnent la bioaccumulation de micropolluants dans les chaînes alimentaires. Le modèle choisi est un ver estuarien endobenthique (Nereis diversicolor) bien connu pour sa résistance à divers types de pollution et chez lequel la cinétique et les effets du cadmium ont été étudiés par les voies chimique, biochimique, cytochimique, immunologique, radioautographique et de microscopie électronique. Nous avons démontré que le tégument et l'intestin sont à la fois des voies de pénétration et des sites potentiels de piégeage. Le cadmium ayant pu pénétrer dans le ver est complexé, au moins partiellement, à des protéines de la fraction soluble: les métalloprotéines MPI et MPII (masse moléculaire respective >70 kDa et # 13,5 kDa). La MPI correspondrait à l'hémoglobine extracellulaire présente dans les vaisseaux sanguins. La MPII est présente notamment dans des cellules cœlomiques, les granulocytes I, qui la libèrent lors d'un stress. La séquence de cette molécule de 119 acides aminés a été analysée et montre que la molécule appartient à la famille des hémérythrines et myohémérythrines, pigments respiratoires dont la présence est ainsi démontrée dans l'embranchement des Annélides. Les voies de stockage et d'élimination du cadmium (intestin, néphridies) ont également été précisées

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Wångstrand, Håkan. "Effects of nitrogen fertilization on the cadmium concentration in winter wheat grain : field studies on cadmium and nitrogen uptake and distribution in shoots as related to stage of development /." Uppsala : Dept. of Soil Sciences, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/9982614.pdf.

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Pham, Thi Ngoc Diep. "Hépatotoxicité du cadmium : étude fondamentale du transport membranaire, de la distribution subcellulaire, et de l'apoptose dans des cultures primaires d'hépatocytes de rats /." Montréal : Université du Québec à Montréal, 2005. http://accesbib.uqam.ca/cgi-bin/bduqam/transit.pl?&noMan=24576816.

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Verstraeten, David. "Les II-VI photoréfractifs dans la bande 0,6 - 1,5 um pour l'enregistrement holographique dynamique." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2002. http://tel.archives-ouvertes.fr/tel-00007635.

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Au vu de leur sensibilité importante, les monocristaux de CdTe et de ZnTe photoréfractifs possèdent un avenir certain en tant que supports d'enregistrement holographique en temps réel. Si le premier matériau travaille dans le proche infrarouge (1,06-1,55 mm), le second est mieux adapté aux caméras CCD et aux diodes lasers (850 nm). Dans ce travail, les grandes étapes du développement d'un cristal de CdTe sont abordées : croissance, caractérisations, mise en forme. Le matériau est réalisé par la méthode de Bridgman-Stockbarger verticale et est optimisé en vue d'applications clairement définies. Plusieurs paramètres de croissance sont modifiés. Plus particulièrement, durant celle-ci, l'effet d'un champ magnétique axial à l'ampoule est testé. L'étude des propriétés électriques est effectuée en corrélant des expériences de résonance paramagnétique électronique et de photocourant modulé. La densité d'états est sondée par la première méthode tandis que la seconde attribue une signature structurale aux niveaux énergétiques. L'antisite de tellure ainsi qu'un deuxième centre profond sont mis en évidence. Les procédés de découpe et de polissage ainsi que le problème de claquage électrique à haut champ sont étudiés par polarimétrie. Le développement de la technique expérimentale permet de sonder la biréfringence induite aussi bien par les contraintes que par le champ électrique local. Les travaux concernant le ZnTe se sont concentrés sur sa croissance et son dopage. La cristallogénèse en phase liquide dite THM est optimisée. Deux codopages permettant de rendre le matériau résistif et photoréfractif ont été définis et validés par des caractérisations appropriées.

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Marrujo, Dan Madrid Savage Richard N. "Spectral conversion of light using cadmium selenium zinc sulfide core shell quantum dots to increase the efficiency of photovoltaic cells : a thesis /." [San Luis Obispo, Calif. : California Polytechnic State University], 2008. http://digitalcommons.calpoly.edu/theses/8/.

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Thesis (M.S.)--California Polytechnic State University, 2008.
"June 2nd, 2008." "In partial fulfillment of the requirements for the degree [of] Master of Science in Engineering with Specialization in Materials Engineering." "Presented to the faculty of California Polytechnic State University, San Luis Obispo." Major professor: Richard Savage, Ph.D. Includes bibliographical references (leaves 98-100). Also available online and on microfiche (2 sheets).

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Luo, Chen. "Distribution and mobilization of heavy metals at an acid mine drainage-affected region, South China." Thesis, Linköpings universitet, Tema Miljöförändring, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-163084.

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Dabaoshan Mine Site (DMS) is the biggest polymetallic mine in South China. The Hengshi River receives acid mine drain (AMD) waste leaching from the tailings pond and run-off from the treatment plant which flows into the Wengjiang River, Beijiang River, before discharging into the Pearl River. Discharge from the mine site results in heavy metal contamination near the mine and lower riparian areas along the river course. The present study focuses on the distribution and mobilization of As, Cd, Pb and Zn along the Hengshi River, groundwater, fluvial sediments and soil, with a special focus on As due to its high toxicity and the fact that mining is one of the main anthropogenic sources of As. Heavy metals, grain-size, XRD, %C and S analysis were done in order to determine the physicochemical characteristics of samples. The results were used for geochemical modeling (PHREEQ) and statistical (PCA) analysis to understand and predict the behavior of heavy metals. Potential ecological risk assessment was conducted by calculating contamination degree of heavy metals in soil and sediment and it’s theoretical toxical risk. Near the tailings pond, heavy metal concentration was 2-100 times higher than chinese surface water standard for agricultural use, which decreases downstream, mianly due to dilution, sorption, precipitation and co-precipitation with minerals. In groundwater, heavy metals concentration remained low. Due to the fact that most wells were abandoned or only for household use, potential risk from groundwater is low. The soils were disturbed by industrial or agricultural activities, and heavy metal concentration varied without showing any specific trend along the river. The potential ecological risk of heavy metals are ranked as: Cd>As>Cu>Pb>Zn in sediments; Cd>Cu>Pb>As>Zn in soil. As(Ⅲ) was the predominant species in surface water, and minerals identified in soil and sediment. Arsenic from most sites exceeded the Chinese soil standard for development land. Although arsenic was assumed to have a moderate ecological risk in sediments and low risk in soils, anthropogenic activities, such as land use change and untreated sewage discharge, might reduce and release arsenic into the environment, which poses potential risk to local residents.

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Kirby, Jason K., and n/a. "Trace metal and metalloid accumulation, distribution, and, speciation in Lake Macquarie, N.S.W., Australia." University of Canberra. Resource, Environmental & Heritage Sciences, 2005. http://erl.canberra.edu.au./public/adt-AUC20051129.124508.

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THESIS ORGANISATION This thesis is organised into nine chapters that include seven international and national publications (six accepted and one submitted for publication). The initial overview chapter outlines the justification and direction for this thesis. With the exception of chapter 8 (accepted for publication on the 1st May 2005); all chapters are exact duplicates of published articles in international and national refereed journals (chapters 2 to 7). The initial chapters (2 and 3) presents research findings using a marine fish species, mullet (Mugil cephalus), to measure trace metal bioavailability in Lake Macquarie, NSW Australia. While subsequent chapters (4 to 8) are presenting research under taken to improve the understanding of arsenic cycling in marine and estuarine environments. The final chapter (chapter 9) is a synopsis of the major findings presented in this thesis. Due to the publication nature of this thesis, an unavoidable degree of replication exists within chapters (publications).

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Книги з теми "Cadmium distribution"

Boualavong, Siphone. Potential effects of oral cadmium on the number and distribution of mast cells in the thyroid, thymus, spleen, and pancreas in rats. Sudbury, Ont: Laurentian University, Department of Biology, 1995.

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Farquhar, Kristiina Anne. Uptake and tissue distribution of metals in muskrats (Ondatra zibithecus) residing within the influence of the zinc-cadmium smelters at Palmerton, Pennsylvania. Sudbury, Ont: Laurentian University, Department of Biology, 2002.

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Distribution of antimony, arsenic, bismuth, and cadmium in heavy-mineral-concentrate samples from the Charlotte 1p0s. [Reston, Va.?]: U.S. Dept. of the Interior, Geological Survey, 1985.

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R, Griffitts Wallace, and Geological Survey (U.S.), eds. Distribution of antimony, arsenic, bismuth, and cadmium in heavy-mineral-concentrate samples from the Charlotte 1⁰. [Reston, Va.?]: U.S. Dept. of the Interior, Geological Survey, 1985.

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Distribution of antimony, arsenic, bismuth, and cadmium in heavy-mineral-concentrate samples from the Charlotte 1?□x 2?□quadrangle, North Carolina and South Carolina. [Reston, Va.?]: U.S. Dept. of the Interior, Geological Survey, 1985.

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Частини книг з теми "Cadmium distribution"

Munshower, F. F. "Pathways and distribution of cadmium in grasslands." In Cadmium in the Environment, 96–101. Basel: Birkhäuser Basel, 1986. http://dx.doi.org/10.1007/978-3-0348-7238-6_12.

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Mart, L., and H. W. Nürnberg. "The distribution of cadmium in the sea." In Cadmium in the Environment, 28–40. Basel: Birkhäuser Basel, 1986. http://dx.doi.org/10.1007/978-3-0348-7238-6_5.

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Kretschmer, Elisabeth, and Gustav A. Drasch. "Distribution of Cadmium Within the Kidney." In Environmental Toxin Series, 145–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-70553-3_12.

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Krishnan, S. S., S. M. W. Lui, R. E. Jervis, and J. E. Harrison. "Studies of Cadmium Uptake in Bone and Its Environmental Distribution." In Nuclear Analytical Methods in the Life Sciences, 257–61. Totowa, NJ: Humana Press, 1990. http://dx.doi.org/10.1007/978-1-4612-0473-2_28.

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Salviano, A. M., R. L. F. Fontes, P. C. R. Fontes, and J. C. L. Neves. "Plant growth and cadmium distribution in plants of Brazilian tobacco cultivars as affected by cadmium in nutrient solution." In Plant Nutrition, 472–73. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/0-306-47624-x_228.

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Hernández, L. E., I. Ramos, R. Carpena-Ruiz, J. J. Lucena, and A. Gárate. "Effect of cadmium on the distribution of micronutrients in Lactuca spp., maize and pea plants." In Fertilizers and Environment, 503–8. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1586-2_88.

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Chung, Keun, Donald Tinker, Nadia Romero, Kenjie Amemiya, Carl Keen, and Robert Rucker. "Copper Status and Cadmium Administration: Effects on Zinc Distribution, Metallothionein, and Superoxide Dismutase Activity in Liver." In Trace Elements in Man and Animals 6, 579–80. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-0723-5_207.

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Florijn, P. J., J. A. Nelemans, and M. L. Van Beusichem. "Evaluation of structural and physiological plant characteristics in relation to the distribution of cadmium in maize inbred lines." In Optimization of Plant Nutrition, 523–29. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-2496-8_82.

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Gussarsson, M., S. Adalsteinsson, P. Jensén, and H. Asp. "Cadmium and copper interactions on the accumulation and distribution of Cd and Cu in birch (Betula pendula Roth) seedlings." In Plant-Soil Interactions at Low pH: Principles and Management, 375–77. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0221-6_56.

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Peña, N. I., V. J. Moreno, J. E. Marcovecchio, and A. Pérez. "Total Mercury, Cadmium and Lead Distribution in Tissues of the Southern Sea Lion (Otaria flavescens) in the Ecosystem of Mar del Plata, Argentina." In Metals in Coastal Environments of Latin America, 140–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-71483-2_15.

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Тези доповідей конференцій з теми "Cadmium distribution"

Yingping Liu, Zhengwei He, and Zhezhong Kan. "Distribution of cadmium in Chengdu plain and controlling factors." In 2010 2nd Conference on Environmental Science and Information Application Technology (ESIAT). IEEE, 2010. http://dx.doi.org/10.1109/esiat.2010.5568436.

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Yang, G., A. E. Bolotnikov, G. S. Camarda, Y. Cui, A. Hossain, K. Kim, and R. B. James. "Electric field distribution of cadmium zinc telluride (CZT) detectors." In SPIE Optical Engineering + Applications, edited by Ralph B. James, Larry A. Franks, and Arnold Burger. SPIE, 2009. http://dx.doi.org/10.1117/12.826909.

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Sapaev, I. B., B. Sapaev, A. V. Umarov, B. A. Mirsalihov, Q. A. Yuldashev, and N. Imamkulov. "Chemical element distribution of cadmium sulfide obtained on silicon substrate." In 2021 ASIA-PACIFIC CONFERENCE ON APPLIED MATHEMATICS AND STATISTICS. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0089906.

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Yang, Dongfang, Shengtao Chen, Baolei Li, Xiao Geng, and Zijun Xu. "Research on the vertical distribution of Cadmium in Jiaozhou Bay waters." In 2015 International Symposium on Computers and Informatics. Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/isci-15.2015.346.

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Leng, Xuemei, Jianguo Liu, Mingxin Wang, Dinglong Li, and Qinghua Dai. "Notice of Retraction: Uptake and Distribution of Cadmium in Different Rice Cultivars." In 2011 5th International Conference on Bioinformatics and Biomedical Engineering. IEEE, 2011. http://dx.doi.org/10.1109/icbbe.2011.5781521.

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Huang, Yi, Shipeng Zhang, Fang Zou, and Lu Feng. "Notice of Retraction: Cadmium Speciation and Distribution in Soils of Chengdu, China." In 2011 5th International Conference on Bioinformatics and Biomedical Engineering. IEEE, 2011. http://dx.doi.org/10.1109/icbbe.2011.5781578.

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Fekeshgazi, Ishtvan V., G. Grischenko, P. Romanyk, I. Tychina, and A. Sheleg. "Diagnostic of the energy level distribution of tetragonal cadmium and zinc diphosphides." In International Conference on Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics, edited by Sergey V. Svechnikov and Mikhail Y. Valakh. SPIE, 1998. http://dx.doi.org/10.1117/12.306227.

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Feng, Qian, Xiuyan Zhou, Peidong Tai, and Peijun Li. "Cadmium Accumulation and Distribution in Tagetes erecta L. Affected by Major Mineral Nutrition." In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2010. http://dx.doi.org/10.1109/icbbe.2010.5516262.

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Palanisamy, Barath, Yu-Wei Su, Anna Garrison, Brian Paul, and Chih-hung Chang. "Cadmium Sulfide Nanoparticle Synthesis Using Oscillatory Flow Mixing." In ASME 2011 International Manufacturing Science and Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/msec2011-50276.

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Анотація:

Microchannel mixers enable faster mixing times compared with batch stir mixing leading to the promise of higher throughput, better yields and less solvent usage for the solution-phase reactive precipitation of inorganic nanoparticles. However, reliance on diffusive transport for subsecond mixing requires channel dimensions in the tens of micrometers. These channel dimensions make diffusive micromixers vulnerable to clogging. In this paper, an oscillatory flow mixing strategy is explored to increase the contact area between reagents within larger microchannels. Forward and reverse oscillatory signals are designed to pump reactants through a 450 μm high serpentine microchannel to increase advection within the flow. Computational fluid dynamics simulations are performed to provide insight into flow behavior and nanoparticle morphology. Quantification of mixing performance is proposed using mixing quality and particle residence time metrics. Experimental validation is pursued through the reactive precipitation of CdS quantum dots using a reverse oscillatory mixing setup. Transmission electron microscopy provides insights into the particle size distribution and particle crystallinity.

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Fridman-Bishop, Noga, Shimon Somer, Liat Birnhack, Leonid Kadinski, Avi Ostfeld, and Ori Lahav. "Rehabilitation of Water Distribution Systems following a Cadmium Contamination Intrusion—A Solution Based on Water Quality and Water Distribution Systems Modeling." In World Environmental and Water Resources Congress 2019. Reston, VA: American Society of Civil Engineers, 2019. http://dx.doi.org/10.1061/9780784482353.052.

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Звіти організацій з теми "Cadmium distribution"

Garrett, R. G. The distribution of cadmium in a horizon soils in the prairies of Canada and adjoining United States. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1994. http://dx.doi.org/10.4095/193656.

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Moore, R. M. Oceanographic Distributions of Zinc, Cadmium, Copper and Aluminium in Waters of the Central Arctic. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/126776.

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Moore, R. M. The Relationship Between Distributions of Dissolved Cadmium, Iron and Aluminium and Hydrography in the Central Arctic Ocean. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/126777.

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Map showing distribution of bismuth and cadmium in stream-sediment samples, Richfield 1 degree by 2 degrees Quadrangle, Utah. US Geological Survey, 1990. http://dx.doi.org/10.3133/mf2138b.

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Maps showing distribution of gold, antimony, arsenic, bismuth, cadmium, and zinc in stream-sediment samples, Delta 1 degree by 2 degrees Quadrangle, Utah. US Geological Survey, 1993. http://dx.doi.org/10.3133/mf2081d.

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Map showing distribution of cadmium and antimony in the nonmagnetic fraction of heavy-mineral concentrates, Richfield 1 degree by 2 degrees Quadrangle, Utah. US Geological Survey, 1990. http://dx.doi.org/10.3133/mf2137a.

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Maps showing the distribution of antimony, arsenic, barium, beryllium, bismuth, cadmium, copper, lead, molybdenum, silver, tin, tungsten, and zinc in heavy-mineral-concentrate samples, Delta 1 degree by 2 degrees Quadrangle, Utah. US Geological Survey, 1993. http://dx.doi.org/10.3133/mf2081e.

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Geochemical map showing distribution of stream-sediment samples that contain anomalous concentrations of antimony, bismuth, cadmium, copper, lead, silver, and zinc in the Wallace 1 degree by 2 degrees Quadrangle, Montana and Idaho. US Geological Survey, 1986. http://dx.doi.org/10.3133/i1509c.

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Maps showing distribution of copper, lead, zinc, cadmium, and silver in samples of minus-60-mesh (0.25-MM) stream sediment and nonmagnetic heavy-mineral concentrate, Walker Lake 1 degree by 2 degrees Quadrangle, California and Nevada. US Geological Survey, 1988. http://dx.doi.org/10.3133/mf1382g.

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