Academic literature on the topic 'Silicone mask'

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Journal articles on the topic "Silicone mask"

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Colla, Carlo, Sander B. Kant, Eric Van den Kerckhove, René RWJ Van der Hulst, and Andrzej A. Piatkowski de Grzymala. "Manual fabrication of a specialized transparent facial pressure mask: A technical note." Prosthetics and Orthotics International 43, no. 3 (2019): 356–60. http://dx.doi.org/10.1177/0309364618820141.

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Background and Aim: The objective of this study was to describe the manual fabrication of a transparent facial pressure mask for treating facial deformities. The mask combines the use of a silicone inner liner and mechanical pressure in the facial region. Technique: A negative mold is formed by covering the face with plaster. Manipulation of soft tissue is a crucial part in this process. After hardening and removal of the negative mold, the positive mold is formed and dried. Next a rolled silicone sheet is placed over the positive mold in a vacuum environment. Subsequently, the silicones are vulcanized. Then the rigid outside of the mask is created. The silicone inner liner and outside shell are then affixed. Discussion: This described technique results in accurate facemasks with precise fitting. During therapy, the mask is adjusted multiple times to keep excellent fit, as remodeling of scars and deformities takes place. Clinical relevance: Facemasks are a reputable therapeutic modality to reduce excessive facial scarring. They require excellent fitting to give pleasing results. To provide a better understanding of facemask therapy, this study describes the manual fabrication technique.
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Dwertman, Michelle N., and Henry B. Huson. "594 A Novel Sequential Compression Appliance to Reduce Scarring of the Face." Journal of Burn Care & Research 45, Supplement_1 (2024): 179–80. http://dx.doi.org/10.1093/jbcr/irae036.228.

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Abstract Introduction A transparent facial orthosis (TFO) is crucial for managing scars in burn cases. However, TFOs are typically static and rigid, lacking adaptability to facial movements. Their effectiveness depends on the ability to conform to each patient's unique facial contours and applying the correct amount of pressure to scars. Crafting or modifying TFOs is a time-consuming, skilled, and costly process. To address these challenges, we've developed the flexible and adaptable Sequential Compression Appliance to Reduce Scarring (SCARS) mask in collaboration with a local prosthetic and orthotic lab. This innovation is seamless, allows natural facial movement, and can be easily customized by a trained burn therapist, providing effective scar management. Methods SCARS Mask Design: The SCARS mask consists of two key components: a rigid transparent outer layer akin to traditional TFOs and a pliable High Consistency Rubber (HCR) silicone layer. These can be used together or separately. The inner layer offers a minimum 20mmHg pressure displayed by the Kikuhime device and remains flexible to accommodate natural facial movements, including temporomandibular joint (TMJ) mobility. The silicone layer is elastic, able to conform to facial contours, and can be color-tinted to individual skin tones. The mask features multidirectional embedded harness attachments, is lighter in weight than traditional orthotics, and can be trimmed with scissors. Process: To create the SCARS mask, FDA-approved Platinum Silicone HCR is merged, pigment tinted, and rolled to the desired thickness. The HCR silicone is heated and molded based on a 3D scan of their face. Clinical Trials: Successful trials on three patients with severe facial burns who exhibit significant scarring and microstomia progression, provided valuable insights. The SCARS mask's performance was noted, confirming its effectiveness. Measurement: Each individual was given Likert scale to rate their experience. Results In the trials involving three patients with severe facial burns: Patient Preference: All patients unanimously preferred the SCARS mask over traditional TFOs, rating it five on the Likert scale. Improved Eating and Mandibular Movement: Patients experienced significant improvements in eating comfort and mandibular movement while using the SCARS mask, with an average Likert scale rating of five. Conclusions The SCARS mask represents a significant advancement in the field of facial orthosis. Its innovative design, flexibility, adaptability, and customizable features offer a promising solution for individuals with burn-related facial scarring, enhancing both comfort and treatment effectiveness. Applicability of Research to Practice This pliable appliance enhances comfort and adherence in managing facial scar hypertrophy. Its customization, allowing color-tinting to match skin tones, and cost-effective modification make it a valuable tool for improving scar management outcomes of facial scarring.
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McLornan, Paul M., Nancy A. Hansen, and Ronald G. Verrett. "Customizing a nasal CPAP mask using a silicone elastomer." Journal of Prosthetic Dentistry 100, no. 2 (2008): 147–52. http://dx.doi.org/10.1016/s0022-3913(08)60161-4.

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Vlad, Ana Maria, Cristian Dragos Stefanescu, and Razvan Hainarosie. "The Importance of Appropriate PAP Silicone Mask Selection in Sleep Apnea Management." Materiale Plastice 60, no. 3 (2023): 31–36. http://dx.doi.org/10.37358/mp.23.3.5673.

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Positive airway pressure (PAP) is the standard treatment for patients with moderate to severe obstructive sleep apnea, especially when a correctable anatomic obstacle is not identified. The PAP efficiency strongly depends on the appropriate use during sleep. Despite the recent advancements in PAP interface designs, overall adherence to therapy remains low. The main sources of discomfort consist of air leakage and mask overtightening leading to skin problems. However, these disadvantages have been partially reduced by new interfaces like nasal pillows that have the capacity to reduce the contact of the silicone cushion with the skin, reducing the chances of skin irritation. At the same time, assuring a better seal prevents air leakage and is particularly useful in patients with internal valve insufficiency. We present a case of a 57-year-old patient with severe sleep apnea syndrome whose efficient treatment was delayed by an inadequate PAP mask prescription at diagnosis. Due to low treatment compliance secondary to the perceived adverse effects of the oronasal mask, the patient decided to discontinue treatment for two years with subsequent aggravation of sleep apnea symptoms. The patient’s sensitivity to the silicone mask cushion and treatment ineffectiveness due to internal valve collapse were the main causes of treatment failure. After changing of PAP interface, the patient achieved long-term compliance. Our case report reflects the importance of choosing the most suitable PAP interface in accordance with the patient’s particularities. In the absence of this approach, appropriate treatment might be delayed with detrimental consequences, especially in severe cases. Considering PAP adherence following therapy initiation usually predicts long-term compliance, finding the best mask design from the beginning can predict therapeutic success.
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Manjani, Ishan, Snigdha Tariyal, Mayank Vatsa, Richa Singh, and Angshul Majumdar. "Detecting Silicone Mask-Based Presentation Attack via Deep Dictionary Learning." IEEE Transactions on Information Forensics and Security 12, no. 7 (2017): 1713–23. http://dx.doi.org/10.1109/tifs.2017.2676720.

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Tomkowska, Anna. "Conservation and restoration of a votive mask from Jiyeh in Lebanon." Polish Archaeology in the Mediterranean 25 (May 15, 2017): 479–86. http://dx.doi.org/10.5604/01.3001.0010.1871.

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A terracotta mask discovered at the site of Jiyeh (ancient Porphyreon) in Lebanon, on the Mediterranean coast between Beirut and Sidon, underwent conservation and restoration in 2014. A silicone cast of the object was made as part of the process, which included reconstruction of the losses and final retouch. The state of preservation of the object was assessed during the course of the conservation. A study of the production technique permitted the mask production process to be reconstructed to a large extent.
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Sun, Pengcheng, Dan Zeng, Xiaoyan Li, et al. "A 3D Mask Presentation Attack Detection Method Based on Polarization Medium Wave Infrared Imaging." Symmetry 12, no. 3 (2020): 376. http://dx.doi.org/10.3390/sym12030376.

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Facial recognition systems are often spoofed by presentation attack instruments (PAI), especially by the use of three-dimensional (3D) face masks. However, nonuniform illumination conditions and significant differences in facial appearance will lead to the performance degradation of existing presentation attack detection (PAD) methods. Based on conventional thermal infrared imaging, a PAD method based on the medium wave infrared (MWIR) polarization characteristics of the surface material is proposed in this paper for countering a flexible 3D silicone mask presentation attack. A polarization MWIR imaging system for face spoofing detection is designed and built, taking advantage of the fact that polarization-based MWIR imaging is not restricted by external light sources (including visible light and near-infrared light sources) in spite of facial appearance. A sample database of real face images and 3D face mask images is constructed, and the gradient amplitude feature extraction method, based on MWIR polarization facial images, is designed to better distinguish the skin of a real face from the material used to make a 3D mask. Experimental results show that, compared with conventional thermal infrared imaging, polarization-based MWIR imaging is more suitable for the PAD method of 3D silicone masks and shows a certain robustness in the change of facial temperature.
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Cheng, Hsiao Chi, Ching Yi Chiu, Chih Wei Lin, Sheng Hsiu Huang, and Chih Chieh Chen. "159 Efficacy of different types of masks in protecting the environment and individual." Annals of Work Exposures and Health 68, Supplement_1 (2024): 1. http://dx.doi.org/10.1093/annweh/wxae035.223.

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Abstract This study addresses the pivotal issue of mask effectiveness in safeguarding individuals and the environment, especially in the context of various disease outbreaks. Highlighting the dual purpose of masks – personal protection and environmental safety – the research emphasizes the challenges posed by leakage and filtration efficiency. The study’s background underscores the critical need for understanding mask efficacy to guide public health practices effectively. The research employed a comprehensive approach, utilizing silicone tubes to simulate mask leaks and polydisperse sodium chloride particles as challenge aerosols. Various parameters, such as breathing flow rates, types of masks, and leak locations, were meticulously examined. The study utilized an Aerodynamic Particle Sizer to measure particle concentration and size distribution, offering a detailed analysis of mask performance under different conditions. Findings revealed significant insights into mask efficacy. Higher breathing flow rates notably improved mask protection efficiency, showcasing the relationship between airflow rates and mask effectiveness. Interestingly, masks with superior filtration efficiency but poor fit exhibited reduced protection, emphasizing the crucial role of proper mask fit in ensuring efficacy. The study demonstrated the impact of leak location on particle penetration, providing essential data for mask design and selection. This research offers vital guidelines for environment-specific mask selection, emphasizing the pivotal role of proper fit. It addresses the potential reshaping of public health strategies during mask shortages by highlighting the need for balancing filtration efficiency and fit. These insights offer practical solutions for individual and environmental safety. Moreover, they could inform future public health policies and manufacturing standards, enhancing disease prevention strategies and contributing significantly to global health security.
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Bridgman, Kate, and Phillip Hughes. "Mask-EdTM: A scoping review." Focus on Health Professional Education: A Multi-Professional Journal 22, no. 2 (2021): 39–59. http://dx.doi.org/10.11157/fohpe.v22i2.414.

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Introduction: Simulation is commonly used in health professional education. Mask-EdTM is a novel form of teacher-in-role methodology involving the educator wearing a purpose-made silicone mask to become the simulated patient. The simulation unfolds spontaneously and in response to the students’ or cohorts’ knowledge, skills or learning objectives. The evidence to support adoption appears limited. This is significant given the resources required to establish a Mask-EdTMcharacter and the changes to courses educators will likely make to embed this simulation. This scoping review aims to explore the current literature and evidence base relating to Mask-EdTM.Methods: A scoping review was completed in September 2020 following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR) checklist. Five databases and Google Scholar were searched for English, peer-reviewed publications containing variants of “Mask-Ed”. Screening and data charting were completed independently by both authors and then reviewed collaboratively. A descriptive analysis was conducted reporting findings based on study design. A thematic synthesis was completed for studies containing qualitative data.Results: Eighteen studies published between 2011 and 2020 by Australian universities and health institutions were included. Twelve studies reported on 10 unique datasets drawing on survey, focus group and mixed method designs. Two studies reported case studies without data, one study was on training and a final three provided research summaries or pedagogical discussion of Mask-EdTM. Conclusion: There is emerging evidence, self-reported by preclinical nursing students, that Mask-EdTM supports improved engagement and confidence in formative learning activities. There is limited evidence, however, to support use in other health or medical disciplines or in individual or summative assessment.
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Imbrie-Moore, Annabel M., Matthew H. Park, Yuanjia Zhu, Michael J. Paulsen, Hanjay Wang, and Y. Joseph Woo. "Quadrupling the N95 Supply during the COVID-19 Crisis with an Innovative 3D-Printed Mask Adaptor." Healthcare 8, no. 3 (2020): 225. http://dx.doi.org/10.3390/healthcare8030225.

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The need for personal protective equipment during the COVID-19 pandemic is far outstripping our ability to manufacture and distribute these supplies to hospitals. In particular, the medical N95 mask shortage is resulting in healthcare providers reusing masks or utilizing masks with filtration properties that do not meet medical N95 standards. We developed a solution for immediate use: a mask adaptor, outfitted with a quarter section of an N95 respirator that maintains the N95 seal standard, thereby quadrupling the N95 supply. A variety of designs were 3D-printed and optimized based on the following criteria: seal efficacy, filter surface area and N95 respirator multiplicity. The final design is reusable and features a 3D-printed soft silicone base as well as a rigid 3D-printed cartridge to seal one-quarter of a 3M 1860 N95 mask. Our mask passed the computerized N95 fit test for six individuals. All files are publicly available with this publication. Our design can provide immediate support for healthcare professionals in dire need of medical N95 masks by extending the current supply by a factor of four.
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Dissertations / Theses on the topic "Silicone mask"

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Gregoriev, Ross. "DEVELOPMENT OF A SILICON NANOWIRE MASK USING SCANNING PROBE MICROSCOPY." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1283.

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Scanning probe microscopy techniques were used to investigate the desorption of hydrogen passivated silicon to form SiO2 etch masks The application of the etch masks were planned on being used to manufacture silicon nanowires. Low concentration hydrofluoric acid was used to passivate the surface. The surface was selectively depassivated by SPM techniques. Scanning tunneling microscopy (STM) and atomic force microscopy (AFM) were used to create the masks. The STM system used was found to desorb hydrogen from the surface faster than the STM could image and was considered incapable in the configuration investigated. This led to the use of atomic force microscopy (AFM). Using a conductive tip in contact mode, lithography on the passivated surface was performed. The topography of the lithography was compared to similar works and found to be similar in size. The width was found to be 80nm and the thickness 1nm. The depassivated layers were confirmed to be oxide through electronic force microscopy (EFM). Finally, voltages were swept with the tip in contact with the surface to find the bandgap of the oxide. It was found that the voltage sweeps were severely modifying the tip along with producing inconsistent desorption thicknesses ranging from 0.2 to 12nm. Despite the results from the voltage sweeps, the lithography procedure performed using the AFM was found to be successful.
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Lee, Joshua En-Yuan. "Silicon micromechanical resonators for measurements of mass and charge." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611188.

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Liao, Jiajun. "Coverage, structure and temperature dependence of anomalous mass transport in the Pb wetting layer on the Si(111) surface /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?PHYS%202009%20LIAO.

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John, Gareth David. "Secondary ion mass spectrometry and resonant ionisation mass spectrometry studies of nickel contacts to silicon carbide." Thesis, Swansea University, 2004. https://cronfa.swan.ac.uk/Record/cronfa42495.

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Time-of-flight secondary ion mass spectrometry (TOF-SIMS) and resonant ionisation mass spectrometry (RIMS) have been used to perform depth profile analyses on nickel (Ni) contacts to silicon carbide (SiC) to understand the interfacial properties. In particular, as-deposited Schottky contacts and high temperature annealed Ohmic contacts have been characterised. Previous literature had indicated that the chemistry of the interface controlled the electrical properties of the contact. Using the TOF-SIMS system, depth profiles have been performed with the standard duoplasmatron ion source and a newly introduced liquid metal ion gun. Sputtering conditions have been optimised enabling detailed depth profiling of Schottky and Ohmic samples. The data from these samples have indicated a distinct difference between the two contact types. Schottky samples have been shown to have an abrupt interface with any interfacial reaction appearing to be confined to the intimate interface. This region had no significant affect on ion yield. Conversely, the Ohmic samples exhibited an extended Si composition well into the Ni contact layer. Moreover, the ion yield varied substantially throughout the contact layer indicating matrix changes were present as a result of annealing to 1000&C. RIMS studied the variation of Ni atoms sputtered into the Ni ground state (a3F4) and first excited state (a3D3) to determine variation in chemical bonding as a function of depth through the contact. Using a defocused ion beam passing through an aperture, detailed depth profiles were obtained by using two-colour, two-step resonant ionisation scheme. Again, a significant variation exists between the RIMS signals from Ohmic and Schottky samples. The ratio of the excited state to ground state for Ni showed measurable variations indicative of multiple Ni-silicide phases. Models for these interfaces are proposed and support other studies performed on this material system. The success of these techniques is reviewed together with suggestions for experimental development.
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Lewis, Kristen Oblad. "COMPARATIVE LIPIDOMICS OF HYDROGEL CONTACT LENSES IN-VITRO AND IN-VIVO." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1243889772.

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Kamfjord, Nils Eivind. "Mass and Energy Balances of the Silicon Process : - Improved Emission Standards." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for materialteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-17285.

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Cowpe, John Stephen. "Optical emission and mass spectrometric diagnostics of laser-induced silicon plasmas." Thesis, University of Salford, 2008. http://usir.salford.ac.uk/2571/.

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Optical Emission Spectroscopy (OES) and Mass Spectrometry (MS) were employed in tandem for diagnostic studies of Nd:YAG (532 nm) laser induced plasma plumes. OES measurements of laser-induced silicon plasmas were performed through a range of ambient pressure regimes from atmospheric pressure down to ~10-4 mbar. The temporal evolution of the plasmas was characterised in terms of electron excitation temperature Te, ionisation temperature Ti, and electron density Ne. Electron densities were determined in the range 2.86 × 1016 to 5.53 × 1019 cm-3, electron temperatures were calculated in the range 8794 to 21229 K, and ionic species temperatures calculated in the range 13658 to 22551K. The requirements for OES analysis based on the assumption of Local Thermal Equilibrium (LTE) conditions existing within the plasmas are discussed. The plasma morphology and expansion dynamics with respect to pressure are described. Response Surface Methodology (RSM) was employed to optimise Laser-Induced Breakdown Spectroscopy (LIBS) analyses of silicon at atmospheric pressure and under vacuum conditions. Multivariate analysis software was used to design and analyse several multi-level, full factorial RSM experiments. A Quality Factor (QF) was conceived as the response parameter for the experiments, representing the quality of the LIBS spectrum captured for a given hardware configuration. A full parametric study of the LIBS hardware configuration was performed to determine the true response of the system; the outcome of which compares favourably with the results yielded from the RSM investigation. MS analyses of silicon and copper laser-induced plasma plumes were performed using a commercially available Residual Gas Analyser (RGA). The RGA sampling configuration was investigated in order to maximise neutral and ionic species detection from the laser-induced plasmas.
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Li, Qian. "Exploring desorption/ionization on porous silicon mass spectrometry and its applications." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0010880.

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Fox, Harvey Stuart. "A study of shallow implants in silicon by secondary ion mass spectrometry." Thesis, University of Warwick, 1989. http://wrap.warwick.ac.uk/99683/.

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This project investigates the analysis of shallow implants by secondary ion mass spectrometry (SIMS) and the problems that arise from it. Ion implantation is now almost exclusively used in the manufacture of modern very large scale integration devices. The quantification of these implants can be carried out very successfully by SIMS. However the distortions that are present in any SIMS analysis are emphasised when the implanted layer is less than lOOnm below the surface. In order to characterize these distortions, it is necessary to be able to accurately parameterize the implant profile. Taking moments of the data was found to be a reliable method of doing this without constructing a distribution. Once a parameterizing method was found the differential shift was investigated in silicon, with and without a Si-MBE grown capping layer. The results suggested that the differential shift may be a depth dependant phenomenon. The effect of the amorphization of a crystal on ion implantation was investigated with respect to the change in sputter rate going through the damaged region. The effect of uneven etching on this study is discussed in detail. In order to overcome this uneven etching two different raster scan units are discussed. One, is a new totally computer controlled device for use on a new SIMS instrument. The other is a modification to an existing scan unit. This second unit has been used to make craters that are flat to 0.05%.
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Mishra, Ritwik. "Photoresist development on SiC and its use as an etch mask for SiC plasma etch." Thesis, Mississippi State : Mississippi State University, 2002. http://library.msstate.edu/etd/show.asp?etd=etd-06162002-205803.

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Books on the topic "Silicone mask"

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Cao, Huiliang. Dual-Mass Linear Vibration Silicon-Based MEMS Gyroscope. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9247-6.

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R, Freer, and Dennis P. F, eds. Kinetics and mass transport in silicate and oxide systems. Trans Tech Publications, 1986.

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Lüthje, Boy. Standort Silicon Valley: Ökonomie und Politik der vernetzten Massenproduktion. Campus, 2001.

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Fox, Harvey Stuart. A study of shallow implants in silicon by secondary ion mass spectrometry. typescript, 1989.

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International Symposium on Electrochemical Microfabrication (1st 1991 Phoenix, Ariz.). Proceedings of the First International Symposium on Electrochemical Microfabrication. Electrochemical Society, 1992.

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M, Singh, and United States. National Aeronautics and Space Administration., eds. High-temperature oxidation behavior of reaction-formed silicon carbide ceramics. National Aeronautics and Space Administration, 1995.

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M, Singh, and United States. National Aeronautics and Space Administration., eds. High-temperature oxidation behavior of reaction-formed silicon carbide ceramics. National Aeronautics and Space Administration, 1995.

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M, Singh, and United States. National Aeronautics and Space Administration., eds. High-temperature oxidation behavior of reaction-formed silicon carbide ceramics. National Aeronautics and Space Administration, 1995.

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United States. National Aeronautics and Space Administration., ed. Direct coupling of microbore HPLC columns to MS systems. National Aeronautics and Space Administration, 1985.

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C, Tew Roy, Schwarze Gene E, and Lewis Research Center, eds. Impact of radiation hardness and operating temperatures of silicon carbide electronics on space power system mass. National Aeronautics and Space Administration, Lewis Research Center, 1998.

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Book chapters on the topic "Silicone mask"

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Todorov, Todor, Krasimira Bineva, and Borislav Romanov. "Validation of Design and Ergonomics of a Protective Mask by Creating a Silicone Replication in a 3D Printed Mold Tool." In Mechanisms and Machine Science. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-80512-7_33.

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Krimmel, Eberhard F., Rudolf Hezel, Uwe Nohl, and Rainer Bohrer. "Silicon Nitride Application as Masks." In Si Silicon. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-662-09901-8_3.

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Park, Jonghoo, Lloyd M. Smith, Maria Arbulu, Thales V. A. G. de Oliveira, and Robert H. Blick. "Nanomembranes as Protein Mass Spectrometers." In Silicon Nanomembranes. Wiley-VCH Verlag GmbH & Co. KGaA, 2016. http://dx.doi.org/10.1002/9783527691005.ch10.

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Krimmel, Eberhard F., Rudolf Hezel, Uwe Nohl, and Rainer Bohrer. "Silicon Nitride as Mask and Dielectric in Field Effect Devices." In Si Silicon. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-662-09901-8_12.

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Krimmel, Eberhard F., Rudolf Hezel, Uwe Nohl, and Rainer Bohrer. "Silicon Nitride Dielectrics and Masks in Capacitors." In Si Silicon. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-662-09901-8_11.

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Coffinier, Yannick, and Rabah Boukherroub. "Porous Silicon-Based Mass Spectrometry." In Handbook of Porous Silicon. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04508-5_88-1.

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Coffinier, Yannick, and Rabah Boukherroub. "Porous Silicon Based Mass Spectrometry." In Handbook of Porous Silicon. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-04508-5_88-2.

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Coffinier, Yannick, and Rabah Boukherroub. "Porous Silicon-Based Mass Spectrometry." In Handbook of Porous Silicon. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05744-6_88.

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Coffinier, Yannick, and Rabah Boukherroub. "Porous Silicon Based Mass Spectrometry." In Handbook of Porous Silicon. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-71381-6_88.

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Krimmel, Eberhard F., Rudolf Hezel, Uwe Nohl, and Rainer Bohrer. "Silicon Nitride Substrates, Masks and Dielectrics in Thin-Film Devices on Insulators." In Si Silicon. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-662-09901-8_13.

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Conference papers on the topic "Silicone mask"

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Strach, Larry, and David T. Wasyluk. "Experience with Silicon-Carbide Tiles in Mass-Fired Refuse Boilers." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93219.

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Abstract The conventional approach to protecting furnace waterwalls in mass burn refuse boilers has been a silicon-carbide refractory lining and an associated anchoring mechanism. Without this kind of protection waterwalls quickly deteriorate due to the corrosive products of combustion. Although this lining is successful in protecting the waterwalls, it is not without operational and maintenance problems. There is a range of silicon-carbide products and materials from which to select to help minimize these problems. An approach that is gaining commercial acceptance is to use preformed silicon-carbide tiles. This paper presents design considerations in selecting the proper tile based on the operational experience with tiles in Wheelabrator Environmental Systems (WES) refuse-to-energy facilities utilizing Babcock and Wilcox (B&W) boilers.
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Bekker, Christiaan, Alexander Jones, Xingrui Cheng, et al. "Enhanced light collection from solid-state qubits in silicon carbide through grayscale hard-mask lithography." In Quantum 2.0. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/quantum.2024.qth4a.8.

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A scalable, shape-controllable method for nanofabrication of high-aspect-ratio microlenses in silicon carbide is presented. Light collection from these lenses is investigated, and an enhancement in collection efficiency of a factor 4.4±1.0 is demonstrated.
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Agarwal, Akshay, Mayank Vatsa, and Richa Singh. "CHIF: Convoluted Histogram Image Features for Detecting Silicone Mask based Face Presentation Attack." In 2019 IEEE 10th International Conference on Biometrics Theory, Applications and Systems (BTAS). IEEE, 2019. http://dx.doi.org/10.1109/btas46853.2019.9186000.

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Bergbreiter, Sarah, and Kristofer S. J. Pister. "Elastomer-Based Micromechanical Energy Storage System." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14919.

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An elastomer-based energy storage system for MEMS has been designed, built, and tested. Micro rubber bands have been fabricated from silicone using two different methods, laser-cut and molded, and assembled into silicon microstructures fabricated in a two-mask silicon-on-insulator (SOI) process. Using silicon hooks and force gauges designed in this process, these micro rubber bands have been characterized as to their energy storage potential and efficiency by stretching them with a probe tip. These tests showed recovered energy efficiencies up to 92% at strains over 200% with a maximum stored energy over 19 μJ. In addition, a fully integrated micromechanical energy storage system to both store and release energy has been demonstrated using an electrostatic inchworm motor to stretch the elastomer band and release it. Using the inchworm motor, an estimated 4.9 nJ of energy was stored in the elastomer spring and quickly released.
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Hatt, Thibaud, Vivek P. Mehta, Jonas Bartsch, et al. "Novel mask-less plating metallization route for bifacial silicon heterojunction solar cells." In SILICONPV 2018, THE 8TH INTERNATIONAL CONFERENCE ON CRYSTALLINE SILICON PHOTOVOLTAICS. Author(s), 2018. http://dx.doi.org/10.1063/1.5049272.

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Zhang, Shude, Baoxing Zhao, Weifei Lian, Yawei Kuang, Yushen Liu, and Zhichun Ni. "Rear side optimization for mass production PERC solar cell with efficiency above 23%." In SiliconPV 2021, The 11th International Conference on Crystalline Silicon Photovoltaics. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0096661.

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Adhikari, Rahul, and Nathan Jackson. "Parylene Capping Layer for Embedded Liquid Mass for MEMS Packaging." In ASME 2024 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/imece2024-144963.

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Abstract Microelectromechanical Systems (MEMS) packaging is over 80% of the cost of a typical MEMS device because there are no standard packaging methods, and each device requires unique packaging. Recently several MEMS devices have illustrated the desire to have a liquid filled cavity within the MEMS device for applications such as biomedical sensors, tunable energy harvesters, or liquid cooling microelectronics. However, embedded liquids in silicon pose a challenge when it comes to packaging. This paper illustrates a novel concept of using a conformal parylene coating to cap or encapsulate the liquid. The concept is validated using various liquids such as various viscosity silicone oils as well as Galinstan a Ga-based liquid metal. The study investigates the packaging reliability through a series of systematic accelerated life-time testing, elevated temperature testing, accelerated soak testing, and mechanical testing (shock and resonant frequency testing). Mass changes were monitored and compared to control (no capping), glass epoxy bonded packaging, and silicone spray coating encapsulation. The results demonstrate the superior mean-time-to-failure of the parylene capping method compared to the other methods. The results confirm that parylene can be used to package embedded liquids in silicon or 3D printed structures.
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Derricks, Christian, Axel Herguth, Giso Hahn, Olaf Romer, and Thomas Pernau. "Elimination of BO-LID in mass production using illuminated annealing in a coupled firing and regeneration tool." In SILICONPV 2018, THE 8TH INTERNATIONAL CONFERENCE ON CRYSTALLINE SILICON PHOTOVOLTAICS. Author(s), 2018. http://dx.doi.org/10.1063/1.5049321.

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Höger, Ingmar, Martin Schaper, Ansgar Mette, et al. "Boosting module power by advanced interconnection and p-type Cz silicon solar cell efficiencies exceeding 22% in mass production." In SILICONPV 2018, THE 8TH INTERNATIONAL CONFERENCE ON CRYSTALLINE SILICON PHOTOVOLTAICS. Author(s), 2018. http://dx.doi.org/10.1063/1.5049312.

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Yuan, Feng, and Xingang Liang. "Thermal Management in Silicene Nanosheets With Designed Cavities by Molecular Dynamic Simulations." In ASME 2016 5th International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/mnhmt2016-6487.

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Silicene, the silicon-based two-dimensional structure with honeycomb lattice, has been discovered to have tremendous application potential in fundamental industries. However, the thermal transport mechanism and thermal properties of silicene has not been fully explained. We report a possible way to control the thermal transport and thermal rectification in silicene nanosheets by designing distributions of a series of triangular cavities in this paper with the nonequilibrium molecular dynamic simulations. The cavities are arranged in a staggered way. The reflection of phonon at the vertex and the base of the triangular cavities are quite different. This difference is used to control the phonon transport in opposite directions and such an arrangement is expected to have very significant thermal rectification effect. The size of cavities, the distance between the triangular cavities and the distribution of cavities are investigated to observe the thermal rectification, which would benefit the design of an experiment that can clearly demonstrate thermal rectification.
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Reports on the topic "Silicone mask"

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DiDomizio, Matthew, and Jonathan Butta. Measurement of Heat Transfer and Fire Damage Patterns on Walls for Fire Model Validation. UL Research Institutes, 2024. http://dx.doi.org/10.54206/102376/hnkr9109.

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Fire models are presently employed by fire investigators to make predictions of fire dynamics within structures. Predictions include the evolution of gas temperatures and velocities, smoke movement, fire growth and spread, and thermal exposures to surrounding objects, such as walls. Heat flux varies spatially over exposed walls based on the complex thermal interactions within the fire environment, and is the driving factor for thermally induced fire damage. A fire model predicts the temperature and heat transfer through walls based on field predictions, such as radiative and convective heat flux, and is also subject to the boundary condition represen-tation, which is at the discretion of model practitioners. At the time of writing, Fire Dynamics Simulator can represent in-depth heat transfer through walls, and transverse heat transfer is in a preliminary development stage. Critically, limited suitable data exists for validation of heat trans-fer through walls exposed to fires. Mass loss and discoloration fire effects are directly related to the heat transfer and thermal decomposition of walls, therefore it is crucial that the representation of transverse heat transfer in walls in fire models be validated to ensure that fire investigators can produce accurate simulations and reconstructions with these tools. The purpose of this study was to conduct a series of experiments to obtain data that addresses three validation spaces: 1) thermal exposure to walls from fires; 2) heat transfer within walls exposed to fires; and 3) fire damage patterns arising on walls exposed to fires. Fire Safety Research Institute, part of UL Research Institutes, in collaboration with the Bureau of Alcohol, Tobacco, Firearms and Explosives Fire Research Laboratory, led this novel research endeavor. Experiments were performed on three types of walls to address the needs in this validation space: 1. Steel sheet (304 stainless steel, 0.793 mm thick, coated in high-emissivity high-temperature paint on both sides). This wall type was used to support the heat flux validation objective. By combining measurements of gas temperatures near the wall with surface temperatures obtained using infrared thermography, estimates of the incident heat flux to the wall were produced. 2. Calcium silicate board (BNZ Marinite I, 12.7 mm thick). This wall type was used to support the heat transfer validation objective. Since calcium silicate board is a noncombustible material with well-characterized thermophysical properties at elevated temperatures, measurements of surface temperature may be used to validate transverse heat transfer in a fire model without the need to account for a decomposition mechanism. 3. Gypsum wallboard (USG Sheetrock Ultralight, 12.7 mm thick, coated in white latex paint on the exposed side). This wall type was used to support the fire damage patterns validation objective. Two types of fire effects were considered: 1) discoloration and charring of the painted paper facing of the gypsum wallboard; and 2) mass loss of the gypsum wallboard (which is related to the calcination of the core material). In addition to temperature and heat flux measurements, high resolution photographs of fire patterns were recorded, and mass loss over the entirety of the wall was measured by cutting the wall into smaller samples and measuring the mass of each individual sample. A total of 63 experiments were conducted, encompassing seven fire sources and three wall types (each combination conducted in triplicate). Fire sources included a natural gas burner, gasoline and heptane pools, wood cribs, and upholstered furniture. A methodology was developed for obtaining estimates of field heat flux to a wall using a large plate heat flux sensor. This included a numerical optimization scheme to account for convection heat transfer. These data characterized the incident heat flux received by calcium silicate board and gypsum wallboard in subsequent experiments. Fire damage patterns on the gypsum wallboard, attributed to discoloration and mass loss fire effects, were measured. It was found that heat flux and mass loss fields were similar for a given fire type, but the relationship between these measurements was not consistent across all fire types. Therefore, it was concluded that cumulative heat flux does not adequately describe the mass loss fire effect. Fire damage patterns attributed to the discoloration fire effect were defined as the line of demarcation separating charred and uncharred regions of the wall. It was found that the average values of cumulative heat flux and mass loss ratio coinciding with the fire damage patterns were 10.41 ± 1.51 MJ m−2 and 14.86 ± 2.08 %, respectively. These damage metrics may have utility in predicting char delineation damage patterns in gypsum wallboard using a fire model, with the mass loss ratio metric being overall the best fit over all exposures considered. The dataset produced in this study has been published to a public repository, and may be accessed from the following URL: <https://doi.org/10.5281/zenodo.10543089>.
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Roberson, Madeleine, Kathleen Inman, Ashley Carey, Isaac Howard, and Jameson Shannon. Probabilistic neural networks that predict compressive strength of high strength concrete in mass placements using thermal history. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/44483.

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This study explored the use of artificial neural networks to predict UHPC compressive strengths given thermal history and key mix components. The model developed herein employs Bayesian variational inference using Monte Carlo dropout to convey prediction uncertainty using 735 datapoints on seven UHPC mixtures collected using a variety of techniques. Datapoints contained a measured compressive strength along with three curing inputs (specimen maturity, maximum temperature experienced during curing, time of maximum temperature) and five mixture inputs to distinguish each UHPC mixture (cement type, silicon dioxide content, mix type, water to cementitious material ratio, and admixture dosage rate). Input analysis concluded that predictions were more sensitive to curing inputs than mixture inputs. On average, 8.2% of experimental results in the final model fell outside of the predicted range with 67.9%of these cases conservatively underpredicting. The results support that this model methodology is able to make sufficient probabilistic predictions within the scope of the provided dataset but is not for extrapolating beyond the training data. In addition, the model was vetted using various datasets obtained from literature to assess its versatility. Overall this model is a promising advancement towards predicting mechanical properties of high strength concrete with known uncertainties.
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Yoo, Jong Hyun. Enhanced mass removal due to phase explosion during high irradiance nanosecond laser ablation of silicon. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/764401.

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Smith, R. P. D0 Silicon Upgrade: Estimates of the Deflections and Stresses of the Toshiba Cold Mass Support System. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/1033286.

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Author, Not Given. Analysis of vapors produced during ultraviolet light exposure of photolithography resist-coated silicon wafers by gas chromatography/mass spectrometry: Final report. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/10129737.

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Veblen, D. R., and E. S. Ilton. HRTEM/AEM study of trace metal behavior, sheet silicate reactions, and fluid/solid mass balances in porphyry copper hydrothermal systems. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/6956149.

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Zaczek, Mauiusz. D0 Silicon Upgrade: Calculating Mass Flow Rates at Sub-Sonic Conditions Trhough Venturis (FT-4052-H & FT-4053-H) and an Orifice Plate (F)-2019-H). Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/1033281.

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