Relevant bibliographies by topics / Integrity of material

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Integrity of material'

Author: Grafiati
Published: 14 October 2022

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Journal articles on the topic "Integrity of material"

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Bayes, Martin, and Al Horn. "Effects of conductor surface condition on signal integrity." Circuit World 30, no. 3 (September 1, 2004): 11–16. http://dx.doi.org/10.1108/03056120410520551.

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The evolution of digital electronic systems to ever‐faster pulse rise times has placed increased demands on printed wiring board (PWB) materials. Signal loss associated with dielectric materials has driven development and commercialization of cost‐effective low loss laminate materials. In order to provide a better understanding of conductor material and surface finish choices, efforts have been made to quantify the impacts of these factors on loss. An alternative test approach has been identified which provides a measure of conductor performance, decoupled from both system geometry and the influence of laminate material.
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Madl, Jan, Vitezslav Razek, Vaclav Koutny, and Jindrich Kafka. "Surface Integrity in Notches Machining." Key Engineering Materials 496 (December 2011): 176–81. http://dx.doi.org/10.4028/www.scientific.net/kem.496.176.

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Precision machining of soft and hardened materials is a topic of high interest to substitute some traditional operations. This paper deals with some aspects of the precision machining of notches. All machining processes result in changes of surface layer properties. There are changes in residual stresses, in harness, changes in material structure etc. and also in surface accuracy and surface roughness. All these characteristics may affect fatigue cracks in machined parts.
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Prabowo, Aditya Rio, Ubaidillah, and Fitrian Imaduddin. "Editorial: Integrity of Mechanical Structure and Material." Procedia Structural Integrity 27 (2020): 1–5. http://dx.doi.org/10.1016/j.prostr.2020.07.001.

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Burrows, Adria Michelle, Mohaimin Kasu, and Maria E. D’Amato. "Preservation of DNA integrity in biological material." Forensic Science International: Genetics Supplement Series 7, no. 1 (December 2019): 416–18. http://dx.doi.org/10.1016/j.fsigss.2019.10.034.

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Haralambous, Nicola. "Juries and Extraneous Material: A Question of Integrity." Journal of Criminal Law 71, no. 6 (December 2007): 520–33. http://dx.doi.org/10.1350/jcla.2007.71.6.520.

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This article challenges the unconditional faith seemingly placed on juries by the judiciary. Despite the prohibition on investigation into jury deliberations, a number of important cases have come to light which invite questions on the extent to which we can be sure that juries follow judicial directions. This article explores the recent case law in which juries may have relied upon extraneous material or other external influences and, finally, briefly compares such impropriety with the use of jurors with specialised knowledge.
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Kellam, Barbara, Deborah E. Fraze, and Keith S. Kanarek. "Central Line Dressing Material and Neonatal Skin Integrity." Nutrition in Clinical Practice 3, no. 2 (April 1988): 65–68. http://dx.doi.org/10.1177/011542658800300265.

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Jawahir, I. S., E. Brinksmeier, R. M'Saoubi, D. K. Aspinwall, J. C. Outeiro, D. Meyer, D. Umbrello, and A. D. Jayal. "Surface integrity in material removal processes: Recent advances." CIRP Annals 60, no. 2 (2011): 603–26. http://dx.doi.org/10.1016/j.cirp.2011.05.002.

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Rösler, J. "Mechanical Integrity of Thermal Barrier Coated Material Systems." Advanced Engineering Materials 7, no. 1-2 (February 2005): 50–54. http://dx.doi.org/10.1002/adem.200400136.

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Pramanik, Md Kamruzzaman, Abdul Bathen Miah, and Md Khorshed Alam. "Disinfection of Archived Material by Radiation Processing Technology Keeping the Material Integrity." Bangladesh Journal of Microbiology 33, no. 1-2 (December 31, 2018): 1–4. http://dx.doi.org/10.3329/bjm.v33i1.39595.

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The aim of the study was to preserve paper-based archived material for a long period of time using ionizing radiation/nuclear technique. To conduct this research, old note-pad samples were selected as tentative archived material. Samples were prepared and irradiated at a series of radiation doses e.g. 0, 2.0, 4.0, 6.0, 8.0, 10.0 and 14.0 kGy at a dose rate of 12.8 kGy/h from panaromic Batch type 80 kCi 60Co source. After irradiation, different quality parameters such as microbiological (Total Viable Bacterial Count, Total Fungal Count), mechanical (Tensile Strength, Percent of Elongation at Break and Elastic Modulus) and color properties (L-value, a-value and b-value) of the samples were assessed to observe the immediate effect of ionizing radiation on these properties. Results showed that the total bacterial count of unirradiated (control) paper were 4.0X102 cfu/g and radiation dose of 2.0 kGy was enough to eliminate the microbial load completely. Among mechanical properties, tensile strength (TS) of unirradiated sample was 16.23 MPa and it was gradually increased as the dose increased and finally reached upto 18.99 MPa at a dose of 14 kGy causing the TS-change above significant level (p < 0.05). Though changes of percent of elongation at break (EB) due to irradiation was insignificant, elastic module (EM) increased as the radiation dose increased gradually. EM of non irradiated sample was 381.85N/m2 and it started changing significantly from 6.0 kGy and finally reaches upto 477.03 N/m2 at 14.0 kGy. Results showed that L-value of colour parameter changed very slightly though a and b-value changed significantly from 6.0 kGy. From these findings it can be inferred that a radiation dose of 4.0 kGy might be used to conserve the cultural heritage including valuable paper-based archived materials. Bangladesh J Microbiol, Volume 33, Number 1-2, June-Dec 2016, pp 1-4
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Timbrell, Chris, Ramesh Chandwani, and Chun Lei Ma. "Demonstrating Structural Integrity under Challenging Load and Material Conditions." Key Engineering Materials 795 (March 2019): 439–50. http://dx.doi.org/10.4028/www.scientific.net/kem.795.439.

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Since the industrial revolution when a German mining engineer August Wohler first studied the frequent breaking of chains causing several casualties and developed the concept of what we now know as the S-N curve, many experimental, theoretical and software-aided simulation techniques have been developed to study ageing material behaviour and to design new materials. Over time the demands placed on new materials have required operation under more severe temperatures and loads in order to conserve natural resources and minimise emissions. Fracture mechanics based finite element algorithms to simulate 3D cracks in components / structures have proved very useful in assessing the residual life and developing repair and maintenance strategies as mandatorily required by various licensing authorities for the continuous operation of infrastructure projects in Aerospace, Power, Transportation, Oil and Chemical industries under the ever more demanding operating conditions. Here one such software tool for crack simulation of industrial applications is presented with examples including combined fatigue and time dependent crack growth under thermo-mechanical loading including hold-time and weld defect assessment with inclusion of dis-similar materials.
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Dissertations / Theses on the topic "Integrity of material"

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Masini, Alessia. "The Role of Bi/Material Interface in Integrity of Layered Metal/Ceramic." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399207.

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The present doctoral thesis summarises results of investigation focused on the characterisation of materials involved in Solid Oxide Cell technology. The main topic of investigation was the ceramic cell, also known as MEA. Particular attention was given to the role that bi-material interfaces, co-sintering effects and residual stresses play in the resulting mechanical response. The first main goal was to investigate the effects of the manufacturing process (i.e. layer by layer deposition) on the mechanical response; to enable this investigation, electrode layers were screen-printed one by one on the electrolyte support and experimental tests were performed after every layer deposition. The experimental activity started with the measurement of the elastic characteristics. Both elastic and shear moduli were measured via three different techniques at room and high temperature. Then, uniaxial and biaxial flexural strengths were determined via two loading configurations. The analysis of the elastic and fracture behaviours of the MEA revealed that the addition of layers to the electrolyte has a detrimental effect on the final mechanical response. Elastic characteristics and flexural strength of the electrolyte on the MEA level are sensibly reduced. The reasons behind the weakening effect can be ascribed to the presence and redistribution of residual stresses, changes in the crack initiation site, porosity of layers and pre-cracks formation in the electrode layers. Finally, the coefficients of thermal expansion were evaluated via dilatometry on bulk materials serving as inputs for finite elements analyses supporting experiments and results interpretation. The second most important goal was to assess the influence of operating conditions on the integrity of the MEA. Here interactions of ceramic–metal interfaces within the repetition unit operating at high temperatures and as well at both oxidative and reductive atmospheres were investigated. The elastic and fracture responses of MEA extracted from SOC stacks after several hours of service were analysed. Layer delamination and loss of mechanical strength were observed with increasing operational time. Moreover, SEM observations helped to detect significant microstructural changes of the electrodes (e.g. demixing, coarsening, elemental migration and depletion), which might be responsible for decreased electrochemical performances. All the materials presented in this work are part of SOC stacks produced and commercialised by Sunfire GmbH, which is one of the world leading companies in the field.
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MEDINA, JORGE ARTURO HINOSTROZA. "PROCEDURE FOR THE ASSESMENT OF STRUCTURAL INTEGRITY OF MATERIAL LIFTING AND HANDLING MACHINERY." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2009. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=31772@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO
COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
FUNDAÇÃO DE APOIO À PESQUISA DO ESTADO DO RIO DE JANEIRO
PROGRAMA DE EXCELENCIA ACADEMICA
BOLSA NOTA 10
Neste trabalho apresenta-se um procedimento para a avaliação da Integridade Estrutural em máquinas de levantamento e movimentação de materiais utilizando a metodologia de Inspeção Baseada em Risco (IBR), com o objetivo de identificar as partes com maior risco de falha. Esta metodologia avalia tanto as Probabilidades de falha como as Consequências de falha para identificar os pontos críticos que serão analisados com prioridade nos programas de inspeção futuros. Um guincho hidráulico de pequeno porte é usado como exemplo da aplicação deste procedimento a equipamentos de grande porte. No desenvolvimento desta metodologia executa-se uma análise detalhada das tensões envolvidas nos principais pontos da máquina, considerando o cálculo analítico, cálculo numérico, medições experimentais e análise de incertezas. Para o cálculo das probabilidades de falha foram considerados os seguintes mecanismos de dano: colapso plástico por carregamento excessivo, fadiga e corrosão. As probabilidades de falha para cada mecanismo são calculadas e classificadas em diferentes níveis, assim como as consequências de falha, o que origina diferentes níveis de risco.
This report presents a procedure for the assesment of Structural Integrity of material lifting and handling machinery, using the methodology of Risk Based Inspection (IBR - Inspeção Baseada em Risco) in order to indentify the parts with high risk of failure. This methodology assesses both probabilities of failure and consequences of failure to identify the critical points; those will be analyzed with priority in future inspection programs. A small hydraulic hoist is used as an example of this procedure applying to big equipments. A detailed strain analysis is carried out for the most important points of the equipment. The strain analysis consider analytic calculations, numeric calculations, experimental measurements and related uncertainly evaluations. In order to calculate the probabilities of failure, the followings damage mechanisms were considered: plastic collapse by excessive loading, fatigue and corrosion. The failure probabilities for each mechanism are calculated and classificated in different levels, as well as failure consequences, that originate different risk levels.
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Nguyen-Dinh, Ngoc. "Experimental study of the trimming of carbon-epoxy composite : machinability and material integrity." Thesis, Toulouse 3, 2019. http://www.theses.fr/2019TOU30059.

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Le détourage est la première opération d’usinage après la fabrication et le démoulage des structures composites. Cette opération, qui est généralement effectuée avec un procédé conventionnel d’enlèvement de matière à l’aide d’un outil de coupe, conduit à l'apparition de plusieurs types d’endommagements qui sont suivi par la génération de particules nocives lors d’un usinage sans lubrification. Ces particules, générées lors de l'usinage à sec de composites constituent une menace sanitaire, car elles peuvent rester en suspension dans l'air et s'infiltrer dans le corps de l'opérateur, représentant un risque de danger respiratoire. Malheureusement, la compréhension des phénomènes d’émission de particules lors de l'usinage du composite est actuellement insuffisante. De plus, l’apparition de dommages localisés sur la surface usinée (due à l’interaction entre l’outil et le composite) peut réduire la tenue de la structure en service du fait de la formation de zones de concentration de contraintes. En conséquence, il est nécessaire de mieux comprendre les causes sous-jacentes de la création de dommages, ainsi que la relation entre les dommages induits par l'usinage et le comportement mécanique. Il est important de noter que d’un point de vue industriel le critère de rugosité de surface est largement utilisé pour quantifier la qualité d’usinage de la surface composite ainsi engendrée ; cependant la relation entre ces deux critères reste complexe. Ainsi, afin de répondre à cette problématique, ce travail de thèse s’est concentré sur trois objectifs principaux. Tout d'abord, des études ont été menées sur l'usinabilité d'échantillons de stratifiés composites multidirectionnels à base de résine époxy et de fibres de carbone lors du détourage à l'aide d'outils de coupe en PCD (diamant polycristallin). Plus précisément, l’influence des paramètres de coupe (vitesse d’avance et vitesse de coupe) et de la distance de coupe (usure de l’outil) ont été étudiés afin de voir leur influence sur les efforts de coupe et sur la température d’usinage induite, puis une caractérisation multi-échelle des dommages induits par l’usinage a été menée. Cette caractérisation multi-échelles des dommages induits par l’usinage a consisté à l’observation post-mortem des échantillons usinés à l’aide de différentes techniques telles que la tomographie à rayons X, la microscopie confocale et le MEB. Grâce à cette caractérisation multi-échelles, la qualité d’usinage a été quantifiée à l’aide de nouveaux paramètres tels que le volume de cratères, Cv, basé sur la quantification des défauts de cratères et la profondeur des dommages, D, mesurés à l’aide d’observations tomographiques à rayons X. Le deuxième objectif de cette thèse était centré sur l'influence des paramètres de coupe (vitesse de coupe, vitesse d'avance et profondeur de coupe radiale), la distance de coupe et la géométrie de l'outil sur le nombre de particules nocives générées lors de la coupe. Les résultats de cette étude sur les émissions de poussières pourront être très utiles à la communauté industrielle pour choisir les bonnes conditions d’usinage afin de protéger les opérateurs susceptibles d’inhaler les particules présentes dans l’air dans la zone d’usinage. Les résultats obtenus ont clairement montré que pour réduire les émissions de particules nocives, il était nécessaire d’augmenter la profondeur de coupe radiale ou la vitesse d’avance. Néanmoins cette combinaison de conditions de coupe conduit en général à une mauvaise qualité d'usinage
Trimming is the first operation of machining after the manufacturing and demolding of the composite structures. This operation which is usually conducted with conventional process of material removal (by cutting tool) induces various forms of damage which is accompanied by the generation of harmful particles in case of dry machining. In fact, particles generated during dry machining of composite pose a dangerous threat, as they can get suspended in the air and infiltrate inside body of operators giving rise to risk of respiratory hazard. Unfortunately, the understanding of particulate emission during machining of composite is presently incomplete. In addition, the appearance of damages located on the machined surface (due the interaction tool/plies) can reduce the structural performance in service due to the formation of stress concentration zones. As a result, it is necessary to understand the underlying causes for generation of damage, and also the relationship between machining induced damage and mechanical behavior. It is important to notice that, industrially, surface roughness criterion is widely used to quantify the machined quality of the newly generated composite surface. However, so far this has been ambiguous approach. Hence, to address the problems mentioned, this thesis focuses on three main objectives. Firstly, studies on the machinability of multi-directional specimens made of carbon fiber reinforced plastics laminates (CFRPs) during trimming with PCD (Polycrystalline Diamond) cutting tools. Specifically, the influence of cutting parameters (feed speed and cutting speed), cutting distance (tool wear) on the cutting forces, machining temperature induced as well as the multi-scale characterization of the machining induced damages have been investigated. For the multi-scale characterization of the induced machining postmortem observations of the machined specimens, using different techniques such as X-ray tomography, confocal microscopy and SEM, are used. Thanks to this multi-scale characterization, the machining quality was quantified using newly proposed parameters such as crater volume ‘CV’ based on the quantification of the crater defects and maximum depth of damage (D) based on the X-ray tomography. The second objective of this thesis was focused on influence of cutting parameters (cutting speed, feed speed, and radial depth of cut), cutting distance, and tool geometry on the number of harmful particles generated during trimming. The outcome of this study on the dust emission can be beneficial for the industrial community to select the safe machining condition for protecting the operators who potentially inhale the particles in the air in the machining area. The obtained results clearly highlighted that to reduce the emission of the harmful particles it is necessary to increase the radial depth of cut or the feed rate. However, this combination of cutting conditions, leads to poor machining quality. This inspired to propose a new design of cutting tool geometry in collaboration with ASAHI Company
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Li, Qian. "SIGNAL INTEGRITY ANALYSIS ON MATERIALS AND VIA STRUCTURES MODELING AND CHARACTERIZATION." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/203472.

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The development of modern digital communication systems has been entered a new era with faster signal transmission and processing capability, called high-speed circuit systems. As their clock frequencies have increased and rise times of signals have decreased, the signal integrity of interconnects in the packaging and printed circuit boards plays a more and more important role. In high-speed circuit systems, the well-designed logic functions most likely will not work well if their interconnects are not taken into account.This dissertation addresses to profoundly understand the signal integrity knowledge, be proficient in calculation, simulation and measurements, and be capable of solving related signal integrity problems. The research mainly emphasizes on three aspects. First of all, the impact of on-wafer calibration methods on the measured results of coplanar waveguide circuits is comprehensively investigated, with their measurement repeatability and accuracy. Furthermore, a method is presented to characterize the physically-consistent broadband material properties for both rigid and flexible dielectric materials. Last but not least, a hybrid method for efficient modeling of three dimensional via structures is developed, in order to simplify the traditional 3D full-length via simulations and dramatically reduce the via build and simulation time and complexity.
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Zhang, Li Ying Grace. "Fatigue and integrity of hard ceramics and coatings using the soft impressor technique." Thesis, University of Hull, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363272.

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Yiğit, Nergiz Seçkin Yavuz. "Industrial product design by using two-dimensional material in the context of origamic structure and integrity/." [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/endustriurunleritasarimi/T000457.pdf.

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Holmberg, Jonas. "Surface integrity on post processed alloy 718 after nonconventional machining." Licentiate thesis, Högskolan Väst, Avdelningen för avverkande och additativa tillverkningsprocesser (AAT), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-12191.

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There is a strong industrial driving force to find alternative production technologies in order to make the production of aero engine components of superalloys even more efficient than it is today. Introducing new and nonconventional machining technologies allows taking a giant leap to increase the material removal rate and thereby drastically increase the productivity. However, the end result is to meet the requirements set for today's machined surfaces.The present work has been dedicated to improving the knowledge of how the non-conventional machining methods Abrasive Water Jet Machining, AWJM, Laser Beam Machining, LBM, and Electrical Discharge Machining, EDM, affect the surface integrity. The aim has been to understand how the surface integrity could be altered to an acceptable level. The results of this work have shown that both EDM and AWJM are two possible candidates but EDM is the better alternative; mainly due to the method's ability to machine complex geometries. It has further been shown that both methods require post processing in order to clean the surface and to improve the topography and for the case of EDM ageneration of compressive residual stresses are also needed.Three cold working post processes have been evaluated in order to attain this: shot peening, grit blasting and high pressure water jet cleaning, HPWJC. There sults showed that a combination of two post processes is required in order to reach the specified level of surface integrity in terms of cleaning and generating compressive residual stresses and low surface roughness. The method of high pressure water jet cleaning was the most effective method for removing the EDM wire residuals, and shot peening generated the highest compressive residual stresses as well as improved the surface topography.To summarise: the most promising production flow alternative using nonconventional machining would be EDM followed by post processing using HPWJC and shot peening.
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Lehmensiek, Michel [Verfasser]. "Restoration integrity, but not material or cementation strategy determined secondary caries next to indirect restorations in vitro / Michel Lehmensiek." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2019. http://d-nb.info/1194945376/34.

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Da, Silva Ashley. "Investigation of cretaceous molluscan shell material for isotopic integrity : examples and implications from the baculites compressus/cuneatus biozones (Campanian) of the western interior seaway." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001574.

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da, Silva Ashley. "Investigation of Cretaceous Molluscan Shell Material for Isotopic Integrity: Examples and Implications from the Baculites compressus/cuneatus Biozones (Campanian) of the Western Interior Seaway." Scholar Commons, 2006. http://scholarcommons.usf.edu/etd/3921.

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Whether a global greenhouse interval is a distinct or distant future, it is important to understand the dynamics of a greenhouse system. During such intervals the oceans, in the absence of sizeable polar ice caps, flood the continental shelf. The stratification and circulation of these epicontinental seas are open to debate, because there are no Recent analogs. The carbon and oxygen stable isotope record of fossil molluscan shell from epicontinental seas has the potential to reveal their stratification and seasonal cycles. Whether a global greenhouse interval is a distinct or distant future, it is important to understand the dynamics of a greenhouse system. During such intervals the oceans, in the absence of sizeable polar ice caps, flood the continental shelf. The stratification and circulation of these epicontinental seas are open to debate, because there are no Recent analogs. The carbon and oxygen stable isotope record of fossil molluscan shell from epicontinental seas has the potential to reveal their stratification and seasonal cycles. As a study sample, mollusks from the Baculites compressus and Baculites cuneatus biozones of the Western Interior Seaway of North America were collected from three locations: Kremmling, Colorado; Trask Ranch, South Dakota; Game Ranch, South Dakota. These fossils date to the Campanian (Late Cretaceous). Taxa include ammonites, bivalves, gastropods, and nautiloids. The first part of this investigation, described in Chapter 2, investigates the degree of alteration in these specimens. Elevated concentrations of minor elements such as magnesium and strontium reveal alteration from the original aragonite and/or calcite skeletons. Concentrations of these elements obtained by ICP-OES analysis are compared within several suites of specimens: mode of preservation, shell testing location, shell color, cementation, appearance under light microscope, and appearance under scanning electron microscope. Each of these suites tests a hypothesis about optimal shell preservation. Shell was found to be preserved best in shale rather than concretions, ammonite phragmacone rather than septa, opalescent specimens rather that nonopalescent ones, and uncemented shells rather than cemented shells, especially those with second-order versus first-order cement. Salinity and temperature values were derived for the organisms in the Western Interior Seaway: while bivalves produced unusually low temperatures, the others were reasonable for an inland sea. The second part of this study, described in Chapter 3, examines the isotopic record within exemplary mollusk shells, taken perpendicular to growth lines. The data for this investigation in sclerochronology documents the dominant isotopically enigmatic bottom-water habitat of the Inoceramus, the geochemical signature of the overlying water mass inhabited by Baculites, and short-term migrations between the two water masses in the nautiloid Eutrephoceras.
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Books on the topic "Integrity of material"

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Gupta, DC, and GA Brown, eds. Gate Dielectric Integrity: Material, Process, and Tool Qualification. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2000. http://dx.doi.org/10.1520/stp1382-eb.

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Engineering, Integrity Through Testing (Conference) (1990 Birmingham England). Engineering Integrity Through Testing. Warley: Engineering Materials Advisory Services, 1990.

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Structure, deformation, and integrity of materials. Weinheim: Wiley-VCH, 2006.

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Davim, J. Paulo. Surface integrity in machining. New York: Springer, 2009.

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Shamsaei, Nima, and Mohsen Seifi, eds. Structural Integrity of Additive Manufactured Materials & Parts. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2020. http://dx.doi.org/10.1520/stp1631-eb.

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North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Impact of materials defects on engine structures integrity. Neuilly sur Seine, France: AGARD, 1993.

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Harris, Charles E. NASA airframe structural integrity program. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1990.

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Međunarodna konferencija Beogradske berze Očuvanje integriteta i efikasnosti tržišta kapitala: Zbornik izlaganja : Beograd 2-4 Novembar 2005 = Belgrade Stock Exchange International Conference Preserving the Integrity and Efficiency of the Capital Market : conference material : Belgrade 2-4 November 2005. Beograd: Beogradska berza, 2005.

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Duranti, Luciana. Preservation of the integrity of electronic records. Dordrecht: Kluwer Academic, 2002.

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International Conference on Structural Integrity and Fracture (2002 Perth, W.A.). Structural integrity and fracture: Proceedings of the International Conference on Structural Integrity and Fracture, SIF 2002, Perth, Australia, 25-27 September 2002. Lisse: Balkema, 2002.

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Book chapters on the topic "Integrity of material"

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Huang, C. "Characterization of Dynamic Fractures for Compressed PMMA Material." In Structural Integrity, 9–13. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47883-4_2.

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Bhattacharjee, Bishwajit. "Application of Mechanics to Concrete Material Science for Structures." In Structural Integrity, 1–6. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-04793-0_1.

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Hameed, Sana Shahul, Josniya Jose, and Praveen Nagarajan. "Shear Strengthening of RC Beams Using Various Material Laminates." In Structural Integrity, 488–507. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-05509-6_40.

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Dovzhyk, Mykhailo, Vyacheslav Bogdanov, and Vladimir Nazarenko. "Fracture of Composite Material at Compression Along Near-Surface Crack." In Structural Integrity, 114–18. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21894-2_23.

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Xie, Liyang, Hongyi Ma, and Guoliang Xu. "Material Strength Degradation Experiment and Statistical Expression Under Cyclic Loading." In Structural Integrity, 21–26. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21894-2_4.

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Dovzhyk, Mykhailo, Vyacheslav Bogdanov, and Vladimir Nazarenko. "Fracture of Composite Material at Compression Along Two Parallel Cracks." In Structural Integrity, 190–93. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-91989-8_42.

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Ali, Elias, and Girum Urgessa. "Numerical Simulation of Functionally-Graded-Material Pipes Under Blast Loading." In Structural Integrity, 167–78. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-98335-2_11.

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Indeitsev, D. A., B. N. Semenov, D. Yu Skubov, and D. S. Vavilov. "Quenching of Non-stationary Wave Due to Structural Transformation of Material." In Structural Integrity, 148–53. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21894-2_28.

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Steblyanko, Pavel, Yuri Chernyakov, Aleksandr Petrov, and Volodymyr Loboda. "Phenomenological Model of Pseudo-Elastic-Plastic Material Under Nonstationary Combining Loading." In Structural Integrity, 205–8. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21894-2_39.

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Xie, Liyang, Bo Qin, and Ningxiang Wu. "A Multi-attribute Information Based Method of Material Strength Distribution Fitting." In Structural Integrity, 44–51. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47883-4_8.

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Conference papers on the topic "Integrity of material"

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Petkov, P. V. "Laser Material Removal: Surface Integrity." In 10th International Conference on Multi-Material Micro Manufacture. Singapore: Research Publishing Services, 2013. http://dx.doi.org/10.3850/978-981-07-7247-5-349.

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Roth, Jim, Clinton Jon Reeves, Carl Robert Johnson, Gunnar Gerard DeBruijn, Mario Bellabarba, Sylvaine Le Roy-Delage, and Helene Bulte-Loyer. "Innovative Hydraulic Isolation Material Preserves Well Integrity." In IADC/SPE Drilling Conference. Society of Petroleum Engineers, 2008. http://dx.doi.org/10.2118/112715-ms.

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Johns, David P. "Material Parameters and EMC Simulations." In 2018 IEEE Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI). IEEE, 2018. http://dx.doi.org/10.1109/emcsi.2018.8495319.

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Harmon, Aaron, Victor Khilkevich, and Kristen M. Donnell. "High Permittivity Anisotropic 3D Printed Material." In 2022 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI). IEEE, 2022. http://dx.doi.org/10.1109/emcsi39492.2022.9889552.

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Hilgert, Oliver, and Christoph Kalwa. "Anisotropic Material Characterization and its Effect on Structural Integrity." In 2016 11th International Pipeline Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ipc2016-64147.

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In recent years anisotropic pipe material properties have gained more interest due to offshore; strain based design and fracture arrest topics. The effect of anisotropic UOE pipe material characteristic is analyzed in this contribution. Both, anisotropic strain dependent values (Lankford) and anisotropic strength dependent factors (Hill) are compared, and their impact on load bearing and plastic strain capacity is investigated. Several common load cases as internal and external pressure as well as bending are investigated. An analysis of the structural behavior concerning burst pressure and transverse strain capacity, collapse pressure, maximum bending moment and critical buckling strain is performed depending on yield strength variation. Therefore the above load and strain capacities are investigated based on present material anisotropy as well as numerical parametric studies. For the internal pressure as dominating load case, it was found that a higher yield strength in the longitudinal direction decreases burst pressure and increases transverse strain capacity. An increase of radial yield strength increases burst pressure as well as transverse strain capacity. For collapse applications, higher radial and transverse yield strength is beneficial as well as a lower longitudinal yield strength. Increasing longitudinal and radial yield strength leads to beneficial structural responses in terms of bending. Increase of transversal yield strength is thus not recommended as the maximum bending moment is not affected and critical buckling strain is decreased. Further it becomes clear from the above various parametric studies that the structural behavior is prone to differ for every set of distinct anisotropic parameters and the load cases. On the other hand selection of distinct anisotropic material can promote the desired structural behavior.
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Kamali, Mohammadreza, Mahmoud Khalifeh, Arild Saasen, Laurent Delabroy, and Rune Godøy. "Materials for Well Integrity – Rheological Behavior Study." In SPE Norway Subsurface Conference. SPE, 2022. http://dx.doi.org/10.2118/209556-ms.

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Abstract Ordinary Portland cement has been the prime material used for well cementing and permanent well- abandonment. Occasionally, the properties of the Portland cement can be inadequate to fulfil the necessary requirements. Hence, alternative barrier materials have been suggested for use in primary cementing and permanent well-abandonment. Among these, geopolymers, expansive cement, pozzolan based material, and thermosetting resins can be good alternatives. This article presents the fluid properties and rheological behavior of the above-mentioned alternative materials. API neat class G cement is used as a reference material to compare the obtained results. Through this study, the bottom-hole circulating temperature (BHCT) and bottom-hole static temperature (BHST) are selected to be 65 and 90°C, respectively. The pressure is 2500 psi. These conditions are representative for most wells on the Norwegian continental shelf. The initial results include viscosity profile at BHCT, the effect of pressure on thickening time, and intensity of static fluid loss. Our results show that the barrier materials have their pros and cons. One material might be good for an application such as a squeeze cementing job while the other one may not fit this application. The viscosity measurements showed all the candidate barrier materials to be shear-thinning to some degree. Except for the pozzolan based sealant, all other selected materials presented right angle set and pressure- dependent consistency.
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Drake, Eric A., Vignesh Rajamani, Charles F. Bunting, James C. West, Bruce Archambeault, and Samuel Connor. "Extension and verification of absorbing material effectiveness on reducing electromagnetic emissions." In 2015 IEEE Symposium on Electromagnetic Compatibility and Signal Integrity. IEEE, 2015. http://dx.doi.org/10.1109/emcsi.2015.7107690.

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Cattanach, S. "A Bill of Material of Integrity: Aligning CAD and PDM." In International Conference on Computer Applications in Shipbuilding 2015. RINA, 2015. http://dx.doi.org/10.3940/rina.iccas.2015.03.

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Treweek, Benjamin, Wyatt Hodges, Elbara Ziade, and Timothy Walsh. "Assessment of Material Bond Integrity via Inversion for Thermophysical Properties." In Proposed for presentation at the Summer Heat Transfer Conference held June 16-18, 2021. US DOE, 2021. http://dx.doi.org/10.2172/1868003.

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Carlucci, Antonio, Nicola Bonora, Andrew Ruggiero, Gianluca Iannitti, and Gabriel Testa. "Integrity Assessment of Clad Pipe Girth Welds." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23625.

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Current design standards and codes do not provide specific guidance how to perform engineering criticality assessment with bi-metallic girth weld in lined or clad pipe. Recently, Bonora et al. (Proc. ASME 2013 32nd OMAE conf.) proposed the equivalent material method (EMM) which allows one still to use current design assessment routes. The method consists in considering instead of three materials in the weld joint, a single “equivalent” material with a flow curve defined as the interpolated lower bound of the three weld joint material flow curves. In this work, the applicability of the EMM was verified considering the effect associated with inner pressure loading and weld residual stresses. To this purpose, two flaw geometry configurations have been investigated. Particular relevance was given to the multi-pass weld process simulation. Numerical results indicate that the EMM always provides conservative results in terms of applied J with respect to those estimated considering the effective multi-materials configuration in the weld joint.
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Reports on the topic "Integrity of material"

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LeDuc, Philip. Investigating Cell-Material Interactions of Magnetospirillum magneticum as an Approach for Probing Submerged Surface Structural Integrity. Fort Belvoir, VA: Defense Technical Information Center, July 2012. http://dx.doi.org/10.21236/ada578563.

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Whelton, Andrew J., Kyungyeon Ra, Seyedeh Mahboobeh Teimouri Sendesi, Md Nuruddin, Xianzhen Li, John A. Howarter, Jeffrey P. Youngblood, Chad T. Jafvert, and Nadezhda N. Zyaykina. Contaminant Release from Storm Water Culvert Rehabilitation Technologies: Understanding Implications to the Environment and Long-Term Material Integrity. Purdue University, October 2019. http://dx.doi.org/10.5703/1288284317089.

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Sullivan, Brian J., and Kent W. Buesking. Structural Integrity of Intelligent Materials and Structures. Fort Belvoir, VA: Defense Technical Information Center, February 1994. http://dx.doi.org/10.21236/ada280941.

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Busby, Jeremy, Lauren Garrison, Lianshan Lin, Stephen Raiman, Sam Sham, Chinthaka Silva, Hong Wang, R. Iyengar, and G. Tartal. Technical Gap Assessment for Materials and Component Integrity Issues for Molten Salt Reactors. Office of Scientific and Technical Information (OSTI), March 2019. http://dx.doi.org/10.2172/1763501.

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Qamhia, Issam, Erol Tutumluer, and Han Wang. Aggregate Subgrade Improvements Using Quarry By-products: A Field Investigation. Illinois Center for Transportation, June 2021. http://dx.doi.org/10.36501/0197-9191/21-017.

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This report presents a case study for constructing aggregate subgrade improvement (ASI) layers using quarry by-product aggregates (QBA), a quarry mix of large primary crushed rocks (PCR) and sand-sized quarry fines. The construction took place at Larry Power Road in Bourbonnais Township in Kankakee County, Illinois, where the Illinois Department of Transportation placed two QBA mixes. The first mix (QBA_M1) consisted of 45% quarry by-products and 55% railroad ballast–sized 3×1 PCR. The second mix (QBA_M2) consisted of 31% and 69% quarry by-products and PCR, respectively. Two conventional ASI sections were also constructed conforming to Illinois Department of Transportation’s CS02 gradation. All sections consisted of a 9 in. (229 mm) QBA/PCR layer topped with a 3 in. (76 mm) dense-graded capping layer. Laboratory studies preceded the construction to recommend optimum quarry by-product content in the QBA materials and construction practice. The Illinois Center for Transportation research team monitored the quality and uniformity of the construction using nondestructive testing techniques such as dynamic cone penetrometer, lightweight deflectometer, and falling weight deflectometer. The segregation potential was monitored by visual inspection and imaging-based techniques. Short-term field evaluation of the constructed QBA layers, particularly QBA_M2 with a 31% quarry by-product content, showed no evidence of abnormal segregation and did not jeopardize the structural integrity of the QBA ASI layers, which had slightly lower but comparable strength and stiffness profiles to the conventional ASI sections. The use of QBA materials in ASI was field validated as a sustainable construction practice to provide stable pavement foundation layers.
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Maletta, Giovanna, and Mike Lewis. Post-shipment On-site Inspections and Stockpile Management Assistance: Bridging Gaps. Stockholm International Peace Research Institute, August 2022. http://dx.doi.org/10.55163/ulfp1679.

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Post-shipment on-site inspections and international assistance in physical security and stockpile management (PSSM) have different scopes and objectives. On-site inspections allow exporting states to check exported military materiel to ensure that the importer is complying with its commitments, while PSSM assistance aims to improve states’ weapons and ammunition management systems. However, both instruments allow foreign specialists to visit a state’s weapons and ammunition storage facilities and enable information gathering to assess their integrity and identify possible diversion risks. This policy brief highlights that building informal linkages between these instruments, especially with regard to states and actors that conduct inspections and are involved in funding or implementing PSSM assistance, could contribute towards establishing more comprehensive forms of post-shipment cooperation. In addition, applying lessons learned from PSSM assistance in terms of gaining access to states’ facilities, cooperating with the beneficiary importing states, and identifying limitations and opportunities associated with the use of tracking technologies could help to address some of the challenges encountered when conducting on-site inspections. PSSM assistance programmes could also include modules to raise awareness about on-site inspections and be a source of expertise that could assist states when implementing these controls.
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Rycroft, Taylor, Sabrina Larkin, Alexander Ganin, Treye Thomas, Joanna Matheson, Tessa Van Grack, Xinrong Chen, Kenton Plourde, Alan Kennedy, and Igor Linkov. A framework and pilot tool for the risk-based prioritization and grouping of nano-enabled consumer products. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41721.

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The use of engineered nanomaterials (ENMs) in consumer products has expanded rapidly, revealing both innovative improvements over conventional materials, and the potential for novel risks to human health and the environment. As the number of new nano-enabled products and the volume of toxicity data on ENMs continues to grow, regulatory agencies like the U.S. Consumer Product Safety Commission (CPSC) – a small, independent federal agency responsible for protecting consumers from unreasonable risks associated with product use – will require the ability to screen and group a diverse array of nano-enabled consumer products based on their potential risks to consumers. Such prioritization would allow efficient allocation of limited resources for subsequent testing and evaluation of high-risk products and materials. To enable this grouping and prioritization for further testing, we developed a framework that establishes a prioritization score by evaluating a nano-enabled product's potential hazard and exposure, as well as additional consideration of regulatory importance. We integrate the framework into a pilot version software tool and, using a hypothetical case study, we demonstrate that the tool can effectively rank nano-enabled consumer products and can be adjusted for use by agencies with different priorities. The proposed decision-analytical framework and pilot-version tool presented here could enable a regulatory agency like the CPSC to triage reported safety concerns more effectively and allocate limited resources more efficiently.
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Ruiz de Gauna, Itziar, Anil Markandya, Laura Onofri, Francisco (Patxi) Greño, Javier Warman, Norma Arce, Alejandra Navarrete, et al. Economic Valuation of the Ecosystem Services of the Mesoamerican Reef, and the Allocation and Distribution of these Values. Inter-American Development Bank, May 2021. http://dx.doi.org/10.18235/0003289.

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Coral reefs are one of the most diverse and valuable ecosystems on Earth. The Mesoamerican Reef contains the largest barrier reef in the Western Hemisphere. However, its health is threatened, so there is a need for a management and sustainable conservation. Key to this is knowing the economic value of the ecosystem. “Mainstreaming the value of natural capital into policy decision-making is vital” The value of environmental and natural resources reflects what society is willing to pay for a good or service or to conserve natural resources. Conventional economic approaches tended to view value only in terms of the willingness to pay for raw materials and physical products generated for human production and consumption (e.g. fish, mining materials, pharmaceutical products, etc.). As recognition of the potential negative impacts of human activity on the environment became more widespread, economists began to understand that people might also be willing to pay for other reasons beyond the own current use of the service (e.g. to protect coral reefs from degradation or to know that coral reefs will remain intact in the future). As a result of this debate, Total Economic Value (TEV) became the most widely used and commonly accepted framework for classifying economic benefits of ecosystems and for trying to integrate them into decision-making. This report estimates the economic value of the following goods and services provided by the MAR's coral reefs: Tourism & Recreation, Fisheries, Shoreline protection. To our knowledge, the inclusion of non-use values in the economic valuation of the Mesoamerican Barrier Reef System is novel, which makes the study more comprehensive.
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Crisosto, Carlos, Susan Lurie, Haya Friedman, Ebenezer Ogundiwin, Cameron Peace, and George Manganaris. Biological Systems Approach to Developing Mealiness-free Peach and Nectarine Fruit. United States Department of Agriculture, 2007. http://dx.doi.org/10.32747/2007.7592650.bard.

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Peach and nectarine production worldwide is increasing; however consumption is flat or declining because of the inconsistent eating quality experienced by consumers. The main factor for this inconsistent quality is mealiness or woolliness, a form of chilling injury that develops following shipping periods in the global fruit market today. Our research groups have devised various postharvest methods to prolong storage life, including controlled atmosphere and delayed storage; however, these treatments only delay mealiness. Mealiness texture results from disruption of the normal ripening process involving disassembly of cell wall material, and creates a soft fruit texture that is dry and grainy instead of juicy and smooth. Solving this problem is a prerequisite for increasing the demand for fresh peach and nectarine. Two approaches were used to reveal genes and their associated biochemical processes that can confer resistance to mealiness or wooliness. At the Volcani Center, Israel, a nectarine cultivar and the peach cultivar (isogenetic materials) from which the nectarine cultivar spontaneously arose, and at the Kearney Agricultural Center of UC Davis, USA, a peach population that segregates for quantitative resistance to mealiness was used for dissecting the genetic components of mealiness development. During our project we have conducted research integrating the information from phenotypic, biochemical and gene expression studies, proposed possible candidate genes and SNPs-QTLs mapping that are involved in reducing peach mealiness susceptibility. Numerous genes related to ethylene biosynthesis and its signal transduction, cell wall structure and metabolism, stress response, different transcription factor families were detected as being differentially accumulated in the cold-treated samples of these sensitive and less sensitive genotypes. The ability to produce ethylene and keep active genes involved in ethylene signaling, GTP-binding protein, EIN-3 binding protein and an ethylene receptor and activation of ethyleneresponsive fruit ripening genes during cold storage provided greater resistance to CI. Interestingly, in the functional category of genes differentially expressed at harvest, less chilling sensitive cultivar had more genes in categories related to antioxidant and heat sock proteins/chaperones that may help fruit to adapt to low temperature stress. The specific objectives of the proposed research were to: characterize the phenotypes and cell wall components of the two resistant systems in response to mealiness- inducing conditions; identify commonalities and specific differences in cell wall proteins and the transcriptome that are associated with low mealiness incidence; integrate the information from phenotypic, biochemical, and gene expression studies to identify candidate genes that are involved in reducing mealiness susceptibility; locate these genes in the Prunus genome; and associate the genes with genomic regions conferring quantitative genetic variation for mealiness resistance. By doing this we will locate genetic markers for mealiness development, essential tools for selection of mealiness resistant peach lines with improved fruit storability and quality. In our research, QTLs have been located in our peach SNPs map, and proposed candidate genes obtained from the integrated result of phenotypic, biochemical and gene expression analysis are being identified in our QTLs as an approach searching for consistent assistant markers for peach breeding programs.
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Improving the management of STIs among MCH/FP clients at the Nakuru Municipal Council health clinics. Population Council, 1999. http://dx.doi.org/10.31899/rh1999.1001.

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In an effort to address the global crisis of HIV/AIDS and to reduce the spread of other sexually transmitted infections (STIs), maternal and child health/family planning (MCH/FP) programs have attempted to integrate the management of STIs into their services. This integration was endorsed at the 1994 International Conference on Population and Development in Cairo. However, as noted in this report, programs have encountered a number of difficulties as they try to effectively manage STIs in an MCH/FP setting. In particular, the effective detection and treatment of STIs has proven difficult among MCH/FP populations. This current study was developed to help improve integration efforts and to contribute to a reduction in the prevalence and spread of STIs among women receiving MCH/FP services from the Nakuru Municipal Council health clinics in Kenya. The project looked at the validity of the current syndromic management approach and explored various ways to improve its approach through the incorporation of risk assessment.
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