Готові списки джерел за темами / Leaded Glass

Добірка наукової літератури з теми "Leaded Glass"

Автор: Grafiati
Опубліковано: 27 липня 2024
Оновлено: 28 липня 2024

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Статті в журналах з теми "Leaded Glass"

1

Abdel-Razek, Yassin A. "Shielding parameters of leaded cement mortar." Journal of Physics: Theories and Applications 7, no. 2 (September 30, 2023): 152. http://dx.doi.org/10.20961/jphystheor-appl.v7i2.78375.

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Анотація:
<p>The Cathode ray tubes (CRTs) represent more than 70% of global e-waste sets. The glass of the CRT is doped with lead to prevent emission of radiations especially electrons. The glass at the panel and neck of the CRT along with the cement mortar, a mixture of 70% neck glass and 30% cement (mix70), are investigated mathematically as shielding materials from photons having energies in the range 0.06-3 (MeV). Experimentally the material mix70 is tested at energies 0.238 and 0.583 (MeV). Good agreement was recognized between the calculated shielding parameters and that obtained experimentally while complete equality between the calculated parameters carried out using the online XCom software or Phy-X software except at low energies for concrete material. Glass from panel, neck and mix70 have acceptable shielding characteristics at and below the energy 0.238 (MeV) or generally at the X-ray region. Neck glass has good shielding parameters at the chosen energy region and it is nominated as a shielding material for many nuclear applications. To enhance the shielding characteristics of the material mix70 it should be compacted during preparation to get higher density. The present work tested the shielding properties of leaded glass composites to find out its integrity for practical shielding applications and radiological safety.</p>
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2

Xie, Fangfang, Lili Liu, and Jinhui Li. "Recycling of Leaded Glass: Scrap Cathode Ray Glass and Fluorescent Lamp Glass." Procedia Environmental Sciences 16 (2012): 585–89. http://dx.doi.org/10.1016/j.proenv.2012.10.080.

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3

Zhang, Cheng Long, Li Li Zhuang, Ying Shun Li, Wen Yi Yuan, Jing Wei Wang, and Jian Feng Bai. "Extraction of Lead from Spent Leaded Glass in Alkaline Solution." Applied Mechanics and Materials 768 (June 2015): 441–46. http://dx.doi.org/10.4028/www.scientific.net/amm.768.441.

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Анотація:
This study evaluates the efficiency of lead (Pb) extraction from spent leaded glass in strongly alkaline solution after mechanical activation in a planetary ball mill as the chemical breakage and defects formed in the inner structures will contribute to the easy dissolution of the activated leaded glass. The influence of rotate speed and time of mechanical activation, NaOH concentrations, leaching temperature, phase ratios (v/w) had been studied. More than 78% of Pb extraction can be achieved after mechanical activation, compared with 3.5% Pb extraction for chemical leaching of non-activated samples. High purity lead powder can be obtained by electrowinning from the leaching solution. The Pb-depleted solution can be recycled into the leaching step. Thus, a novel hydrometallurgical process for recovering Pb from spent leaded glass in alkaline solution is proposed.
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4

Hillen, Michaël, Stijn Legrand, Yarince Dirkx, Koen Janssens, Geert Van der Snickt, Joost Caen, and Gunther Steenackers. "Cluster Analysis of IR Thermography Data for Differentiating Glass Types in Historical Leaded-Glass Windows." Applied Sciences 10, no. 12 (June 21, 2020): 4255. http://dx.doi.org/10.3390/app10124255.

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Анотація:
Infrared thermography is a fast, non-destructive and contactless testing technique which is increasingly used in heritage science. The aim of this study was to assess the ability of infrared thermography, in combination with a data clustering approach, to differentiate between the different types of historical glass that were included in a colorless leaded-glass windows during previous restoration interventions. Inspection of the thermograms and the application of two data mining techniques on the thermal data, i.e., k-means clustering and hierarchical clustering, allowed identifying different groups of window panes that show a different thermal behavior. Both clustering approaches arrive at similar groupings of the glass with a clear separation of three types. However, the lead cames that hold the glass panes appear to have a substantial impact on the thermal behavior of the surrounding glass, thus preventing classification of the smallest glass panes. For the larger panes, this was not a critical issue as the center of the glass remained unaffected. Subtle visual color differences between panes, implying a variation in coloring metal ions, was not always distinguished by IRT. Nevertheless, data clustering assisted infrared thermography shows potential as an efficient and swift method for documenting the material intervention history of leaded-glass windows during or in preparation of conservation treatments.
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5

Meng, Wen, Xiaoyan Wang, Wenyi Yuan, Jingwei Wang, and Guanghan Song. "The Recycling of Leaded Glass in Cathode Ray Tube (CRT)." Procedia Environmental Sciences 31 (2016): 954–60. http://dx.doi.org/10.1016/j.proenv.2016.02.120.

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6

Alofsin, Anthony. "Light Screens: The Leaded Glass of Frank Lloyd Wright. Julie L. SloanLight Screens: The Complete Leaded-Glass Windows of Frank Lloyd Wright. Julie L. Sloan." Studies in the Decorative Arts 10, no. 1 (October 2002): 142–47. http://dx.doi.org/10.1086/studdecoarts.10.1.40662995.

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7

Zakiev, I. N. "To the clinic of gasoline pneumonia." Kazan medical journal 43, no. 3 (October 29, 2021): 69–70. http://dx.doi.org/10.17816/kazmj83902.

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Анотація:
Chauffeur N. 42 years old, previously not ill, complained of pulmonary hemorrhage (up to a glass), which appeared 3 hours after the ingestion of leaded gasoline into the respiratory tract through the mouth. The bleeding was repeated several times in small portions. Cough, no shortness of breath, notes chest pain.
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8

Fan, G. Y., Bruce Mrosko, and Mark H. Ellisman. "Single-electron sensitivity with a lens-coupled CCD camera." Proceedings, annual meeting, Electron Microscopy Society of America 51 (August 1, 1993): 642–43. http://dx.doi.org/10.1017/s0424820100149040.

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Анотація:
A lens coupled CCD camera showing single electron sensitivity has been built for TEM applications. The design is illustrated in Fig. 1. The bottom flange of a JEM-4000EX microscope is replaced by a special flange which carries a large rectangular leaded glass window, 22 mm thick. A 20 μm thick layer of red phosphor is coated on the window, and the entire window is sputter-coated with a thin layer of Au/Pt. A two-lens relay system is used to provide efficient coupling between the image on the phosphor scintillator and the CCD imager. An f1.0 lens (Goerz optical) with front focal length 71.6 mm is used as the collector. A mirror prism, of the Amici type, is used to "bend" the optical path by 90° to prevent X-rays which may penetrate the leaded glass from hitting the CCD detector. Images may be relayed directly to the camera (1:1) or demagnified by a factor of up to 3:1 by moving the lens assembly.
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9

Barbos, Sergiu, Andrei Novac, Roxana Sprincenatu, Madalin Condel, Ion Mitelea, and Corneliu Craciunescu. "A Study of Ti-Ta Library and Microstructure Manufactured by Magnetron Sputtering." Solid State Phenomena 254 (August 2016): 97–101. http://dx.doi.org/10.4028/www.scientific.net/ssp.254.97.

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Ti-Ta films were deposited out of Ti and Ta targets on glass and kapton substrates. The co-deposition leaded to the formation of a compositional spread in the Ti-Ta system, a continuous variation of the Ta/Ti ratio along the full range of the film. The typical microstructure observed for the films deposited at RT consisted of columnar grains with dotted Ta-rich particles, reflecting a relatively nonhomogenous structure. Annealing at 400 °C leaded to the individualization of grain boundaries and to a coalescence of the Ta-rich particles. Annealing at 500 °C further reduced the amount of particles, but also appeared to be associated with the cracking in the stressed area of the film/kapton structure.
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10

Adie, Gilbert U., Abdulazeez M. Hammed, and Nene O. Adim. "IMMOBILIZATION OF HIGH-LEADED CATHODE RAY TUBE GLASS IN FIRED CLAY BRICKS BY RECYCLING." International Journal of Engineering Science Technologies 6, no. 1 (January 26, 2022): 18–31. http://dx.doi.org/10.29121/ijoest.v6.i1.2022.221.

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Анотація:
End-of-life cathode ray tubes (CRTs) have become global problem in the pool of waste electrical and electronics owing to higher concentration of lead (Pb) and this needs urgent management in an ecofriendly manner. In this study, spent CRT glass was incorporated in clay to make burnt bricks for construction. Samples of CRT glass were collected from technicians’ workshops, manually dismantled, pulverized, milled and sieved into three particles sizes (PS), namely; 0.6mm ≤1.0mm, ≤2.0mm. The metallic composition was determined with Inductive Coupled Plasma- Optical Emission Spectrometric technique (ICP-OES). Each PS was mixed with clay at percentages ranging from 0% as control to 15% CRT and moulded using dry compression technique, dried and fired in furnace at 800 0C. Mechanical properties of fired bricks products were assessed including water absorption, linear shrinkage and compressive strength. The 4wt% CRT-clay composition for ≤0.6mm PS exhibited highest strength with low linear shrinkage and medium water absorption and was selected as optimum composition. Lead (Pb) leachability from fired CRT-glass/clay from the three particle sizes using TCLP and SPLP were within permissible limit of 5.0mg/L set by US-EPA. The total recoverable lead (Pb) from optimum test composition was 96mg/L or 96,000 mg/kg that exceeded the permissible limit. From the findings, it can be shown that the optimum composition of less than 0.6mm particle size is of good quality, durable and environmentally safe bricks that can be used for building construction works.
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Більше джерел

Дисертації з теми "Leaded Glass"

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Levén, Kristina. "Within and Beyond : A collaboration by the Glass Craft duo BarroLevén." Thesis, Konstfack, Keramik & Glas, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-6675.

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Анотація:
In this collaborative Craft Master project by Ulrika Barr and Kristina Levén, we have investigated how glass can affect an environment to create a space in between. A “Ma-space” that could offer a pause in the everyday life in relation to the public sphere. We have worked parallel with two expressions of glass in relation to a room. Rocks of Glass casted hot glass together with Foamglas and colors and Veils of Glass- fused window glass in leaded techniques. By using filming as a medium, projections brings out the inner world of the glass. Sound is another layer in the collage installation outcome.The collaboration has been from first idea and intuitive investigations in the workshop to the final installation.The material outcome is a unique expression for this Glass Craft duo called BarroLevén. The written part of the project includes both common and separate parts.

In collaboration with Ulrika Barr

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2

Baker, Cortney. "Women leaders in healthcare| Going beyond the glass ceiling." Thesis, Pepperdine University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3739568.

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Анотація:

Between 2004 and 2014, healthcare jobs were among the fastest growing occupations in the U.S, adding 4.3 million positions and expected job growth of 30.3%. The majority of the healthcare workforce is overwhelmingly dominated by women. However, when it comes to leadership positions, especially executive and board levels, females are considerably underrepresented. Interestingly, though, women, more than men, are reported to demonstrate traits such as transparency, compassion, and support for teamwork, which would benefit organizations as they venture into the future of healthcare delivery. In recent years, women have made minimal entry into the highest ranks of managerial positions of healthcare in American corporations. The purpose of this phenomenological qualitative study was to identify experiences, barriers, and obstacles that women in healthcare organizations have overcome in their efforts to obtain successful leadership positions. Ten women in varying capacities of healthcare leadership positions from across the United States engaged in open-ended interviews to discuss what obstacles and adversities they have faced and conquered to advance to their levels of leadership. The data focused on career paths, obstacles, leadership qualities, demographics, and experiences. The participants identified their perceived leadership styles to be centered around the importance of communication and what they deemed soft skills, suggesting a different style from their male counterparts. The results of this study confirmed that even in the 21st century, career barriers such as family responsibilities, gender, lack of self-confidence, and current career challenges continue to exist for women seeking executive leadership positions in the healthcare field. Keywords: women?s leadership, healthcare, leadership barriers, obstacles

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3

Khalf, Abdulkarim. "Lead-free ferroelectric glass-ceramics and composites." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/leadfree-ferroelectric-glassceramics-and-composites(33a5ca87-89ca-48d3-94c8-eb3c166067d5).html.

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Анотація:
Glass-ceramic composites and nanocrystalline glass-ceramics containing barium titanate (BT) or potassium sodium niobate (KNN) ferroelectric phases have been studied, with particular regard to their use as dielectric energy storage materials. Barium borosilicate glass (BBS) was used as a sintering aid for BT and KNN, producing glass-ceramic composites. The temperatures required to achieve densification were reduced from 1400 to 1200 °C for BCZT (Ca, Zr-doped BT) and 1170 to 1050 °C for KBN (Bi, Na, K, Zr-doped KNN) by the use of glass additives. An unexpected observation, found in both BCZT and KBN systems, was the heterogeneous dissolution of dopant elements into the glass, inducing additional anomalies in the relative permittivity-temperature relationships. For BCZT, the orthorhombic-tetragonal phase transformation temperature shifted upwards to ≈ 50 °C, which was attributed to modification of the Ca/Zr ratio by preferential dissolution of Ca into the glass phase. Similarly, for KBN the dopant elements appeared to be leached into the liquid phase during sintering, resulting in relative permittivity-temperature characteristics similar to those of pure KNN. A modified BBS glass having various KNN contents was prepared by the conventional melt-quenching method and then heat-treated to induce crystallisation, producing nanocrystalline glass-ceramics. It is shown that crystallisation of an intermediate barium niobate phase initiates at temperatures in the region of 650 °C; this is subsequently converted into perovskite KNN together with a second phase of Ba3Nb5O15 at temperatures from 700 to 800 °C. The final crystallite size was in the region of 30±7 nm. The highest dielectric energy storage density of 0.134(4) J cm-3 was obtained for a glass-modified BT ceramic at an electric field level of 5 kV mm-1. However, the energy storage efficiency of the BT-based ceramics was relatively poor and they displayed a general tendency for saturation, indicating potentially poor performance at higher field levels. On the other hand, the KNN-based ceramics exhibited slightly lower energy storage density values, up to 0.108(1) J cm-3, but with much improved linearity and energy storage efficiency. Therefore, the latter is considered to be more suitable as energy storage dielectrics. The BBS-KNN glass-ceramics yielded relatively low energy storage density, 0.035(2) J cm-3, but the dielectric linearity and storage efficiency were similar to or better than those of the KNN ceramics, indicating good potential for use as energy storage dielectrics at very high electric field levels as a result of their nanocrystalline microstructures.
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4

Schacherl, Jeffrey D. "Glass siliconization process characterization for insulin delivery device performance." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104305.

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Анотація:
Thesis: M.B.A., Massachusetts Institute of Technology, Sloan School of Management, 2016. In conjunction with the Leaders for Global Operations Program at MIT.
Thesis: S.M. in Engineering Systems, Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016. In conjunction with the Leaders for Global Operations Program at MIT.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 84-86).
Baked-in siliconization of glass cylinders, primary insulin containers, is a manufacturing process that is critical to the performance of drug delivery devices. Delivery devices are evolving and placing additional burden on production processes. Variability in siliconization and baking processes affects the resulting friction characteristics that are related to device performance criteria such as injection time and velocity, which are critical to the patient experience. The principal objective is to better characterize the performance of siliconized and baked glass, enabling improvement of device injection performance. A controlled study was conducted in order to strip away extraneous variables and enhance experimental control. State-of-the-art nanoscale measurement techniques and tribological (friction) equipment were employed to test the physical characteristics of silicone-coated glass. Data collected was statistically analyzed to determine relative significance of primary factors as well as variable interactions, with respect to friction of the rubber versus coated glass system. Lack of silicone or "dry spots" were found to be a key concern for siliconized glass. Siliconization amount was empirically modeled and found to have an exponential relationship with the coefficient of friction. High velocities exacerbated issues arising from lack of silicone. Based on the test results, a clearer definition of proper baked-in glass siliconization has emerged. Recommendations included minimum siliconization amount and an awareness of significant variable effects and interactions on system friction. Groundwork has been laid for further work including process optimization in the pursuit of improving insulin delivery device injection performance. The opinions expressed herein are solely those of the author and do not necessarily reflect those of Sanofi.
by Jeffrey D. Schacherl.
M.B.A.
S.M. in Engineering Systems
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5

Pablo, Fleurdelis, of Western Sydney Nepean University, and Faculty of Science and Technology. "Adsorptive stripping voltammetry of trace elements on a glassy carbon mercury film electrode." THESIS_FST_XXX_Pablo_F.xml, 1994. http://handle.uws.edu.au:8081/1959.7/207.

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Анотація:
This thesis describes the development of new adsorptive cathodic stripping voltammetric methods for reliable determination of some trace metals in biological and environmental materials on a glassy carbon mercury film electrode. In particular, the development of these methods involved selection of a suitable complexing agent for the respective metal ion studied, characterization of the electrode processes, investigation of factors affecting the voltammetric response such as concentration and pH of supporting electrolyte, concentration of complexing agent, accumulation potential, accumulation time and electrode rotation rate. Also, organic and inorganic interferences, linear concentration range, and detection limits were carefully considered. Furthermore, the analytical application of the method was demonstrated for each metal in biological and/or environmental materials, after optimization of the sample decomposition procedure. Some conclusions : the results obtained by the AdCSV method for the determination of tin in juices agreed reasonably with those obtained by atomic absorption method; the use of the adsorptive voltammetric technique after dry-ashing and UV treatment of the samples was successfully demonstrated for the determination of vanadium in standard reference materials such as urban particulate matter, peach leaves, apple leaves and bovine liver; and, the use of the adsorptive stripping voltammetric technique, after decomposition of samples by dry-ashing and UV treatment, was successfully demonstrated for the determination of molybdenum in peach leaves, apple leaves and bovine liver samples.
Doctor of Philosophy (PhD)
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6

McArthur, Scott D. (Scott Douglas). "An investigation of glass cartridge siliconization processes for improved device performance." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111497.

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Анотація:
Thesis: M.B.A., Massachusetts Institute of Technology, Sloan School of Management, in conjunction with the Leaders for Global Operations Program at MIT, 2017.
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, in conjunction with the Leaders for Global Operations Program at MIT, 2017.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 87-89).
This study aims to advance understanding of baked-in siliconization of cartridges for application in Insulin injection pens. This research is motivated by lack of knowledge of baked-in siliconization and business opportunities a better understanding can provide. The primary contribution from this work is the development of a recommended silicone profile that can significantly reduce friction force variation within a cartridge during device use. An Insulin pen delivers Insulin to patients by the mechanical pushing of a rubber stopper through a cylindrical glass cartridge forcing the Insulin through a hypodermic needle at the cap end. This cartridge is coated with a very thin layer of silicone to reduce the force necessary for injection. This silicone layer is introduced to the cartridge prior to filling in the manufacturing process. This step of the filling process was characterized and results revealed different silicone profiles and friction force profiles for different filling lines. Correlations between silicone profile and friction forces were then developed for cartridges. As predicated, lower levels of silicone thickness and a higher percent of dry spots led to increased friction forces and higher variation among samples. These correlations were used to recommend a silicone profile with an average layer thickness greater than 60nm with fewer than 20% dry spots. Finally, atmospheric pressure plasma (APP) treatment was explored as a pre-treatment step to improve siliconization. Findings from APP feasibility studies showed that APP increases glass surface energy and wettability, but that its effect wears off over time and therefore impact on siliconization is still unknown. These results set the stage for further research and process optimization of siliconization in the context of medical injection devices. Insights gained will contribute to design of new devices, improved manufacturing operations and increased quality for Sanofi and the pharmaceutical medical device industry. The opinions expressed herein are solely those of the author and do not necessarily reflect those of Sanofi.
by Scott D. McArthur.
M.B.A.
S.M.
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7

Barrett, N. T. "Glancing angle X-ray absorption spectroscopy to investigate changes in the local atomic structure around uranium in leached glasses." Thesis, University of Strathclyde, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382385.

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8

Sandgren, Elin. "Leaching of Glass Waste – Structure and Humidity Cell Tests." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-388059.

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Анотація:
Glass production has historically occurred at around 50 glassworks in Sweden, in a region known as the Kingdom of Crystals (Glasriket). Today, most of these sites are no longer active and left behind is glass waste of different forms (both as fragments of finished glass as well as unrefined glass melts). Consequently, increased concentrations of different metals, especially arsenic, lead and cadmium, have been found around the sites, both in soil as well as in ground and surface water. Between 2016 and 2019, the Geological Survey of Sweden (SGU) assigned Golder Associates AB (Golder) to evaluate the environmental risks at three different glassworks: Flerohopp, Åryd and Alsterbro. The results, based on humidity cell tests (HCT) conducted on glass samples from each site, showed that glass itself leached to a surprisingly high extent. Based on this, the aim of this master thesis has been to explain trends in glass leaching by a thorough literature review and through the analysis of HCT data of glass samples. Additionally, the speciation of different metals in the leachate was investigated based on geochemical modelling using PHREEQC. Results from the literature review show that one of the possible mechanisms for the leaching of glass in contact with water is ion exchange, which occurs at the surface of the glass, namely between glass components and H+ ions in water. Additionally, the literature also argues that glass with higher silica content form a more resilient structure, in contrast to glass which contains a large amount of modifiers, such as Na and Ca. Researchers speculate that adding such modifiers to the glass mass opens up the structure, making it more vulnerable upon contact with water. Looking at the total concentration of elements from the three glassworks, the results show a variation in silica content in relation to other elements. In line with this hypothesis, the sample from Åryd, which contained a higher proportion of modifiers, showed a high leaching rate of both Na and Si. Furthermore, the result shows that the leaching of Na and As follows the same pattern over the HCT period for all glassworks. This is, to some extent, also the case for Pb although the correlation is not as significant. This could be explained by the result from geochemical modelling, showing that As tends to dissolve into the leachate while Pb is more prone to forming secondary minerals. Hence explaining their differences in leaching behavior. The result from this study showed no clear correlation between Ca and either As or Pb which could potentially be explained by the formation of precipitates. However, another approach to describe the difference in the behavior between Na and Ca is based on the glass structure itself as well as the hypothesis that Na+ participate in ion exchange to a larger extent than Ca2+. Consequently, the leaching of Na+ makes the surface structure more vulnerable, thereby promoting the leaching of other components such as As and Pb.
Produktion av glas har historiskt skett på cirka 50 glasbruk i Sverige i ett område som kallas Glasriket. I dag är produktionen vid majoriteten av dessa glasbruk avvecklad och kvar på platserna finns glasavfall i olika former, både som skärvor av färdigt glas och som ej färdigställd glasmassa. Som en konsekvens av detta har förhöjda halter av olika metaller, särskilt arsenik, bly och kadmium, påträffats i jorden såväl som i grund- och ytvattnet kring glasbruken. Mellan åren 2016 och 2019 gav Sveriges geologiska undersökning (SGU) i uppdrag till Golder Associates AB (Golder) att uträtta huvudstudier och bedömma risker vid tre olika glasbruk, Flerohopp, Åryd och Alsterbro. Resultaten, baserade på fuktkammarförsök på glassavfall, påvisade att glas lakade till en överraskande hög utsträckning. Detta resultat lade grunden till detta examensarbete med frågeställningar i syfte att förklara lakning av glas baserat på en genomgående litteraturstudie samt analys av resultat från fuktkammarförsöken. Vidare har även geokemisk modellering med programmet PHREEQC gjorts för att identifiera olika specifieringar av metaller som kan förväntas påträffas i lakvätskan. Resultat från litteraturstudien visar att en möjlig process som kan förklara lakning av glas vid kontakt med vatten är jonbyte mellan glasets beståndsdelar och H+-jonerna i vattnet. Tidigare studier påvisar att ett högre kiselinnehåll i glaset skapar en mer motståndskraftig struktur än glas som innehåller en förhållandevis hög andel modifierare, såom Na och Ca. Forskare spekularar kring huruvida tillsatsen av modifierare till glasmassan bidrar till att öppna upp glasstrukturen och som en konsekvens av detta göra strukturen mer sårbar. Vid analys av prover tagna vid de tre olika glasbruken påvisade resultaten ett varierat kiselinnehåll i förhållande till övriga ämnen. I linje med denna hypotes påvisade provet från Åryd den högsta andelen modifierare och samtidigt även den högsta lakningen av Na såväl som Si. Vidare påvisar resultatet att lakningen av Na och As följer samma mönster över hela fuktkammarförsöket. Detta kan delvis ses för Pb men korrelationen är inte lika signifikant som för As. En förklaring till detta baseras på resultat från geokemisk modellering, där As tenderar att gå i lösning medan Pb kan förväntas forma sekundära mineral vilket därmed kan antas kontrollera lakningen. Resultatet från denna studie visade ingen korrelation mellan varken Ca och As eller Ca och Pb vilket också skulle kunna förklaras av utfällningar i form av Ca-mineral i lakvätskan. En annan utgångspunkt för att beskriva den skillnad som kan ses mellan Na och Ca baseras på själva glasstrukturen och hur Na+ deltar i jonbyte till en högre grad än vad Ca2+ gör. Som en konsekvens av detta bidrar lakningen av Na+ till att ytan på glaset blir mer sårbar och på så sätt gör att ämnen som As och Pb blir mer lättåtkomliga. Detta resulterar i en större möjlighet för dessa att delta i reaktioner på ytan och därmed laka ut från strukturen.
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9

Ruivo, Andreia Filipa Cardoso. "Synthesis and characterization of innovative luminescent glasses for artistic applications." Doctoral thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/11279.

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Unger, Alexandra M. "An analysis of differences in glass cartridge siliconization parameters and processes for manufacturing of pharmaceutical cartridges." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/117961.

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Thesis: M.B.A., Massachusetts Institute of Technology, Sloan School of Management, in conjunction with the Leaders for Global Operations Program at MIT, 2018.
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, in conjunction with the Leaders for Global Operations Program at MIT, 2018.
Some pages printed landscape. Cataloged from PDF version of thesis.
Includes bibliographical references (pages 82-84).
The application of silicone inside of glass insulin cartridges helps reduce injection forces during drug delivery. This is important for a less painful patient experience. Insulin pen designs are increasingly reliant on consistent and repeatable injection forces as mechanized injection replaces manual injection. A minimum silicone layer thickness of 40nm is required to produce low gliding forces of approximately two Newtons with little variability. Differences seen in final gliding forces across production areas at Sanofi Insulin Frankfurt are small, but this variation makes it difficult to design for set-force mechanical injection. While the minimum silicone layer thickness required is established, how to achieve it consistently is less understood. This project looked at three insulin packaging lines at Sanofi Insulin Frankfurt that use different methods for siliconization. Differences between these lines were investigated in order to understand which parameters are the most important for creating an acceptable silicone layer thickness. First, each production line was mapped from loading of empty cartridges through the end of the heating tunnel, before insulin is packaged. Differences in the process were found in cleaning procedures, silicone application methods, and production settings. Points for potential variability were found at silicone mixing steps and during start/stop conditions. Lab experiments were developed to test cleaning procedures, heating time, standing time, air pressure of silicone blowout, and silicone concentration. Results from these experiments showed that some production processes have a greater effect than others on silicone layer thickness and subsequent gliding forces. Differences in cleaning procedures on each of the lines have little effect on overall silicone layer thickness and gliding forces. Time in the heating tunnel and standing time have a moderate effect. The largest effects were seen from silicone emulsion concentration and air blow out pressures in the flushing method of silicone application. The following recommendations are given to improve performance consistency across production areas: (I) standardize processes across production areas where possible, (2) reduce air pressure in the flushing process, and (3) eliminate process steps that can lead to several of these effects occurring in the same cartridge.
by Alexandra M. Unger.
M.B.A.
S.M.
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Книги з теми "Leaded Glass"

1

Morse, Natalee S. Leaded glass designs. Dallas, Tex. (9903 Carnegie Dr., Dallas 75228): N.S. Morse, 1993.

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1961-, Torlen Pat, ed. Decorative glass: Sandblasting, copper foil, and leaded stained glass : projects & patterns. New York: Sterling Publishing, 1999.

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Vogel, Neal A. The preservation and repair of historic stained and leaded glass. [Washington, D.C.]: U.S. Dept. of the Interior, National Park Service, Cultural Resources, Preservation Assistance, 1993.

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1867-1959, Wright Frank Lloyd, ed. Light screens: The complete leaded-glass windows of Frank Lloyd Wright. New York, N.Y: Rizzoli International Pubs., 2001.

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5

Maher, George Washington. George Washington Maher (1864-1926): The poppy leaded glass windows, Winton House, Wausau, Wisconsin, 1905-06. New York, NY: Bernard Goldberg Fine Arts, 2007.

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6

Ryan, Mary. Beyond the glass ceiling: Women leaders in education. North Blackburn, Vic: CollinsDove, 1993.

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7

Jensen, Jane S. Women political leaders: Breaking the highest glass ceiling. New York: Palgrave Macmillan, 2008.

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8

Nyman, Roseline. Union glass ceiling: The under-representation of women leaders in COSATU. Johannesburg: Naledi, 1996.

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9

Nishimizu, Mieko. Potrait of a leader: Through the looking-glass of His Majesty's decrees. Thimphu: The Centre for Bhutan Studies, 2008.

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Nishimizu, Mieko. Potrait of a leader: Through the looking-glass of His Majesty's decrees. Thimphu: The Centre for Bhutan Studies, 2008.

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Частини книг з теми "Leaded Glass"

1

Biggs, Henry P., Tom Bussen, and Lenny Ramsey. "A Glass of Beer, a Shot of Sake, and Groupthink." In Shaping the Global Leader, 31–54. New York : Routledge, 2019.: Routledge, 2019. http://dx.doi.org/10.4324/9780429275296-3.

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2

Hunt, Gerald, Frank Xu, and Melissa Sewell. "Operational Considerations and Lessons Learned for Dry Sorbent Injection Systems." In 78th Conference on Glass Problems, 137–55. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119519713.ch12.

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3

Philip, C., and David D. Myers. "Amber Glass - 40 Years of Lessons Learned." In A Collection of Papers Presented at the 66th Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 27, Issue 1, 129–39. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470291306.ch11.

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4

Golchert, Brian. "Lessons Learned in Developing the Glass Furnace Model." In 65th Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 26, Number 1, 145–53. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470291214.ch13.

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5

Lasna Kabir, Syeda. "‘Through the Glass Ceiling, over the Glass Cliff?’ Women Leaders in Bangladeshi Public Administration." In Gender Mainstreaming in Politics, Administration and Development in South Asia, 87–109. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36012-2_5.

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6

Cortès-Conde, Florencia, and Diana Boxer. "Chapter 2. Breaking the glass & keeping the ceiling." In Discourse, Politics and Women as Global Leaders, 43–66. Amsterdam: John Benjamins Publishing Company, 2015. http://dx.doi.org/10.1075/dapsac.63.03cor.

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7

Gujrati, Puru D. "Energy Gap Model of Glass Formers: Lessons Learned from Polymers." In Modeling and Simulation in Polymers, 433–95. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2010. http://dx.doi.org/10.1002/9783527630257.ch10.

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8

Buasuwan, Prompilai, and Ratikorn Niyamajan. "The Glass Ceiling Facing Women Leaders in Thai Higher Education." In Gender and the Changing Face of Higher Education in Asia Pacific, 213–30. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-02795-7_14.

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9

Clarke, Simon, and Helen Wildy. "Providing Professional Sustenance for Leaders of Learning: The Glass Half Full?" In International Handbook of Leadership for Learning, 673–90. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1350-5_38.

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10

Le Magueresse, Romain, Frédéric Giraud, Fabrice Casset, Anis Kaci, Brigitte Desloges, and Mikael Colin. "Preliminary Design of a Flexible Haptic Surface." In Haptics: Science, Technology, Applications, 207–15. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06249-0_24.

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AbstractThis paper presents the preliminary development of a flexible haptic surface in order to produce texture rendering on a large conformable area. For this purpose, Haptic Pixels vibrating at ultrasonic frequencies are actuated by piezoelectric elements and implanted on a flexible matrix. The design leads to square glass plates of 10 $$\times $$ × 10 mm$$^2$$ 2 with a thickness of 500 $$\upmu $$ μ m, actuated by PZT ceramics with a thickness of 200 $$\upmu $$ μ m and a radius of 2.5 mm bonded on a 100 $$\upmu $$ μ m thick PEEK film. Electromechanical characterizations validate the design. The PEEK film between two pixels is exploited to separate them, to obtain the flexibility of the surface and to create an area of friction reduction with a stationary wave. Haptic evaluations are carried out to confirm the performances of the approach on a Haptic Pixel.
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Тези доповідей конференцій з теми "Leaded Glass"

1

Farfan, Bernardo G., William D. Reinhart, and C. Scott Alexander. "Equation of state studies for leaded glass." In SHOCK COMPRESSION OF CONDENSED MATTER - 2019: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter. AIP Publishing, 2020. http://dx.doi.org/10.1063/12.0000976.

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2

Friberg, S. R., and P. W. Smith. "Nonlinearities in glass for subpicosecond optical switches." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/oam.1986.mcc3.

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Ultrarapid (subpicosecond) optical switching and signal processing elements should find important applications in future communication and computing systems. Glasses with fast (< 100-fs) electronic third-order susceptibilities could be used to fabricate ultrarapid switches. These nonlinearities, described by the nonlinear index coefficient n2, are compared with slow thermal index changes for various glasses. A degenerate four-wave mixing (DFWM) technique using a 250-ns train of 80-ps pulses from a mode-locked Q-switched Nd:YAG laser was used to measure n2. Thermal index changes were obtained by comparison of the DFWM signal from initial and final pulses of the pulse train. Results for leaded glasses agree with previous reports, with n2 of SF-59 equal to 19% of that of CS2. Titanium glasses, e.g., Hoya FDS-90, have an n2 that is 7 % that of CS2, and n2 does not increase with linear index as for leaded glasses. The observed thermal index changes are small, as expected for very low absorption coefficients. We define a figure of merit to help compare nonlinear materials for use in optical switches. It is the ratio of the (fast) nonlinear index change necessary to produce switching to the accompanying (slow) thermal index change. We show that some optical glasses appear to have higher figures of merit than any other nonlinear optical material. We conclude with a discussion of some possible configurations for glass all-optical switches.
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3

Restrepo, Eliette, Rolf Widmer, and Mathias Schluep. "A critical review of recycling and disposal options for leaded glass from cathode ray tubes (CRTs)." In Electronics Goes Green 2016+ (EGG). IEEE, 2016. http://dx.doi.org/10.1109/egg.2016.7829839.

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4

Kennedy, C. E., K. Terwilliger, and G. J. Jorgensen. "Furthur Analysis of Accelerated Exposure Testing of Thin-Glass Mirror Matrix." In ASME 2007 Energy Sustainability Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/es2007-36182.

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Concentrating solar power (CSP) companies have deployed thin-glass mirrors produced by wet-silver processes on ∼1-mm-thick, relatively lightweight glass. These mirrors are bonded to metal substrates in commercial installations and have the confidence of the CSP industry. Initial hemispherical reflectance is ∼93%–96%, and the cost is ∼$16.1/m2–$43.0/m2. However, corrosion was observed in mirror elements of operational solar systems deployed outdoors for 2 years. National Renewable Energy Laboratory (NREL) Advanced Materials Team has been investigating this problem. First, it was noted that this corrosion is very similar to the corrosion bands and spots observed on small (45 mm × 67 mm) thin-glass mirrors laminated to metal substrates with several different types of adhesives and subjected to accelerated exposure testing (AET) at NREL. The corrosion appears as dark splotches in the center of the mirror, with a corresponding 5%–20% loss in reflectivity. Secondly, two significant changes in mirror manufacture have occurred in the wet-chemistry process because of environmental concerns. The first is the method of forming a copper-free reflective mirror, and the second is the use of lead-free paints. However, the copper-free process requires stringent quality control and the lead-free paints were developed for interior applications. A test matrix of 84 combinations of sample constructions (mirror type/back-protective paint/adhesive/substrate) was devised for AET as a designed experiment to identify the most-promising mirrors, paints, and adhesives for use with concentrator designs. Two types of accelerated exposure were used: an Atlas Ci5000 WeatherOmeter (CI5000) and a BlueM damp-heat chamber. Based on an analysis of variance (ANOVA), the various factors and interactions were modeled. These samples now have more than 36 months of accelerated exposure, and most samples have completed their test cycle. We will discuss the results of the final exposure testing of these mirror samples. Glass mirrors with copper back-layers and heavily leaded paints have been considered robust for outdoor use. However, the basic mirror composition of the new mirrors is radically different from that of historically durable solar mirrors, and the outdoor durability must be determined.
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5

Kennedy, C. E., K. Terwilliger, and G. J. Jorgensen. "Analysis of Accelerated Exposure Testing of Thin-Glass Mirror Matrix." In ASME 2005 International Solar Energy Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/isec2005-76040.

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Concentrating solar power (CSP) companies have deployed thin-glass mirrors produced by wet silver processes on ∼1-mm-thick, relatively lightweight glass. These mirrors have been bonded to metal substrates in commercial installations. Initial hemispherical reflectance is ∼93% to 96%, and the cost is ∼$16.1/m2 to $43.0/m2. These mirrors have the confidence of the CSP industry. However, corrosion was observed in mirror elements of operational solar systems deployed outdoors for 2 years. NREL’s advanced optical materials team was assigned to investigate the problem. First, it was noted that this corrosion is very similar to the corrosion bands and spots observed on small (45 mm × 67 mm) thin-glass mirrors laminated to metal substrates with several different types of adhesives and subjected to accelerated exposure testing (AET) at NREL. These samples exhibited corrosion at the unprotected edges and along cracks, and the choice of adhesive affected the performance of weathered thin-glass mirrors. Secondly, two significant changes in mirror manufacture have occurred in the wet-chemistry process because of environmental concerns. The first is the method of forming a copper-free reflective mirror, and the second is the use of lead-free paints. A test matrix of 84 combinations of sample constructions (mirror type / back protective paint / adhesive / substrate) was devised for AET as a designed experiment to identify the most promising mirrors, paints, and adhesives for use with concentrator designs. Two types of accelerated exposure were used: an Atlas Ci5000 WeatherOmeter (WOM) and a damp-heat chamber. Based on an analysis of variance (ANOVA), the various factors and interactions were modeled. These samples now have almost 24 months of accelerated exposure. Analysis of the thin-glass mirror matrix indicated that the Glaverbel mirror with a copperless formulation demonstrates slightly better performance compared to the Naugatuck standard copper-containing mirror and new copperless constructions although most results are within experimental uncertainty. Analysis of the thin-glass mirror matrix indicates commercial (non-mirror) back-protective paint applied after mirror manufacturing is not beneficial. Degradation of the samples exposed to date in the damp-heat chamber is similar, but at a rate 10 times faster than observed for samples in the WOM. We will discuss the results of the continued exposure testing of these mirror samples. Although glass mirrors with copper back-layers and heavily leaded paints have been considered robust for outdoor use, the new copperless back-layer and lead-free paint systems were designed for interior mirror applications and the outdoor durability must be determined.
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6

Yamashita, Mikio, Mitsuru Ishikawa, Kenji Torizuka, and Takuzo Sato. "An experimental study on cavity-mirror dispersion dependence of pulse duration generated from a simple CPM laser." In International Conference on Ultrafast Phenomena. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/up.1986.tud3.

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From recent studies on CPM dye lasers, it was verified that the most important thing to generate pulses shorter than 100 fsec is to compensate chirping leaded by dispersion and phase modulation due to optical elements composing of the laser cavity. Dietel et al. produced pulses shorter than 6 0 fsec by the adjustment of the optical path of a positive dispersion prism-glass in the cavity for compensation of down-chirping, while Valdmanis et al. recently have produced pulses as short as 27 fsec by the adjustment of the distance between prisms causing negative cavity dispersion for compensation of up-chirping. Consequently, the former conclusion that down-chirp is dominant in the CPM laser is contrary to the latter one that up-chirp is dominant. In addition, both the cavity configurations are complicated for optical alingment and experimental estimation of dispersion proper to the CPM laser because of the additional insertion of one or four prisms leading to negative cavity dispersion.
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7

Long, X. C., and S. R. J. Brueck. "Large Photosensitivity in Lead Silicate Glasses." In Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides. Washington, D.C.: OSA, 1999. http://dx.doi.org/10.1364/bgpp.1999.ca5.

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8

Chakraborty, S., A. K. Arora, V. Sivasubramanian, and P. S. R. Krishna. "Anomalous Brillouin shift in lead-tellurite glass above glass transition." In SOLID STATE PHYSICS: PROCEEDINGS OF THE 57TH DAE SOLID STATE PHYSICS SYMPOSIUM 2012. AIP, 2013. http://dx.doi.org/10.1063/1.4791167.

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9

Nandikotkur, Giridhar, Keith M. Jahoda, R. C. Hartman, R. Mukherjee, P. Sreekumar, M. Böttcher, R. M. Sambruna, and J. H. Swank. "Does the Blazar Gamma-ray Spectrum Harden with Increasing Flux?-What We Learned From EGRET." In THE FIRST GLAST SYMPOSIUM. AIP, 2007. http://dx.doi.org/10.1063/1.2757348.

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10

Corrales, L. René. "Molecular dynamics simulations of defects and excitons in glasses." In Bragg Gratings, Photosensitivity, and Poling in Glass Fibers and Waveguides. Washington, D.C.: Optica Publishing Group, 1997. http://dx.doi.org/10.1364/bgppf.1997.jma.9.

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The interaction of excited electrons and holes with defects in network semiconducting and insulating glasses is examined. Of particular interest is the diffusion of vacancy sites in oxide materials that can aggregate to form voids and eventually lead to the formation of nanoscale bubbles. This is a process that is known to occur in nuclear waste materials, but the mechanisms remain unclear. A radioactive decay event can release energy in the keV to MeV range that is dispersed amongst the emission of alpha-particles, beta-particles, and gamma rays (depending upon the radionuclide), and into the momentum of the remaining ion. The particle emission lead primarily to electronic excitation energies and self-trapped excitons, whereas the momentum on the ion leads to a recoil cascade. These processes lead to an abundance of bond breaking and topological rearrangement. During the lifetimes of these events, defects such as vacancies, peroxides and E’ centers are formed, and also leads to the etching and formation of molecular oxygen. The underlying physics and chemistry of these processes are studied using a semi-empirical methodology specifically designed to examine amorphous networked materials. The method can be implemented in parallel to study large system sizes as required in the simulation of recoil cascades, and contains enough electronic information to model excited states that lead to the formation of excitons. An overview of the model approach and its application for determining the diffusion barriers of defects in the presence of excitons will be discussed.
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Звіти організацій з теми "Leaded Glass"

1

Cumby, R. (Assembly of phototubes to lead-glass detectors). Office of Scientific and Technical Information (OSTI), April 1990. http://dx.doi.org/10.2172/6948517.

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2

Marra, J. C. Glass composition development for stabilization of lead based paints. Office of Scientific and Technical Information (OSTI), October 1996. http://dx.doi.org/10.2172/385594.

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3

M. Y. Balatz et al. The lead-glass electromagnetic calorimeter for the SELEX experiment. Office of Scientific and Technical Information (OSTI), July 2004. http://dx.doi.org/10.2172/825953.

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4

Chick, L. A., L. R. Bunnell, D. M. Strachan, H. E. Kissinger, and F. N. Hodges. Evaluation of lead-iron-phosphate glass as a high-level waste form. Office of Scientific and Technical Information (OSTI), September 1986. http://dx.doi.org/10.2172/5110201.

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5

Bell, Curtis. What Happens After Glass Ceilings Shatter? The Influence a First Female Leader Has on Women’s Representation in Elected Offices. One Earth Future Foundation, June 2016. http://dx.doi.org/10.18289/oef.2016.006.

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6

Meaker, T. F. Compositional development of a plutonium surrogate glass without listed RCRA elements (lead and barium). Office of Scientific and Technical Information (OSTI), September 1996. http://dx.doi.org/10.2172/518762.

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7

Schwartz, G. M. Development of small-diameter lead-glass-tube matrices for gamma-ray conversion in positron emission tomography. Office of Scientific and Technical Information (OSTI), May 1985. http://dx.doi.org/10.2172/5680472.

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8

Whisler, Daniel, Rafael Gomez Consarnau, and Ryan Coy. Novel Eco-Friendly, Recycled Composites for Improved CA Road Surfaces. Mineta Transportation Institute, July 2021. http://dx.doi.org/10.31979/mti.2021.2046.

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The continued use of structural plastics in consumer products, industry, and transportation represents a potential source for durable, long lasting, and recyclable roadways. Costs to dispose of reinforced plastics can be similar to procuring new asphalt with mechanical performance exceeding that of the traditional road surface. This project examines improved material development times by leveraging advanced computational material models based on validated experimental data. By testing traditional asphalt and select carbon and glass reinforced composites, both new and recycled, it is possible to develop a finite element simulation that can predict the material characteristics under a number of loads virtually, and with less lead time compared to experimental testing. From the tested specimens, composites show minimal strength degradation when recycled and used within the asphalt design envelopes considered, with an average of 49% less wear, two orders of magnitude higher compressive strength, and three orders for tensile strength. Predictive computational analysis using the validated material models developed for this investigation confirms the long-term durability.
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9

Dunlop J., L. McLerran, D. Morrison, and R. Venugopalan. Proceedings of RIKEN BNL Research Center Workshop: Saturation, the Color Glass Condensate and the Glasma: What Have We Learned from RHIC? Office of Scientific and Technical Information (OSTI), May 2010. http://dx.doi.org/10.2172/1088183.

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10

Gabriel, T. A., and B. L. Bishop. Response of a segmented lead glass Cerenkov counter to (1-10 GeV) incident electrons, gamma rays and hadrons. Office of Scientific and Technical Information (OSTI), November 1986. http://dx.doi.org/10.2172/7110608.

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