Journal of Astm International最新文献_第5页

Reduction of Emission in a Diesel Engine Using Nanofuel – Ceria Nanoparticle Dispersed Diesel 利用纳米燃料减少柴油机的排放——纳米二氧化铈分散柴油

Journal of Astm International Pub Date : 2012-05-01 DOI: 10.1520/JAI104424

S. Mandal, S. Kanagaraj

引用次数: 13

Metrological Approach in the Study of Biodiesel Viscosity Variation with Temperature 生物柴油粘度随温度变化的计量方法研究

Journal of Astm International Pub Date : 2012-05-01 DOI: 10.1520/JAI104612

D. M. E. S. Filho, C. R. C. Rodrigues, A. P. Barbosa, J. D. Santos, F. O. Baldner, R. Pereira, Clara Castro, José Renato Real Siqueira, R. J. Daroda, L. Lima

引用次数: 3

Adhesive Joints in Glass and Solar Engineering 玻璃和太阳能工程中的粘接接头

Journal of Astm International Pub Date : 2012-05-01 DOI: 10.1520/JAI104076

B. Weller, I. Vogt

{"title":"Adhesive Joints in Glass and Solar Engineering","authors":"B. Weller, I. Vogt","doi":"10.1520/JAI104076","DOIUrl":"https://doi.org/10.1520/JAI104076","url":null,"abstract":"The architecture of the past 100 years is characterized by a desire for ever greater transparency. Inevitably, that goes hand in hand with a constantly growing proportion of glass in the building envelope. But owing to the brittle nature of glass, there are only limited options for transferring tried-and-tested methods of jointing—derived from structural steelwork and other engineering disciplines—to this material. However, adhesive joints are much more suited to creating a material bond between glass components. Structural adhesive joints for load bearing glass components have been the subject of research and development work all over Europe in recent years. This article looks at some of that work. The research has led to the development of practical adhesive joints for glass-glass and glass-metal connections. The work includes the study of surface pretreatments and aging scenarios so that types of application for the tensile and shear loads encountered in practice can be specified. Material specimens tested at various load application rates and temperatures enable the material parameters to be determined. A torsion specimen with a glued butt joint is being used to improve the in situ testing of glass-metal connections. There are plenty of potential applications for adhesive joints in structural glazing and solar technology, including the following: Point adhesive joints for overhead glazing and for oversize photovoltaic modules subjected to high environmental loads, linear adhesive joints for hybrid steel-glass composite beams with good ductility and for glass fins with a reduced cross-section in minimized steel-and-glass facades, or full-bond adhesive joints for photovoltaic facades suspended in front of a ventilation cavity and for fully transparent load bearing adhesive joints to an all-glass pavilion (first approved application in Germany).","PeriodicalId":15057,"journal":{"name":"Journal of Astm International","volume":"128 1","pages":"1-20"},"PeriodicalIF":0.0,"publicationDate":"2012-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88183682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Development of an Active Detector for the Characterization of the Late-Time Radiation Environment from a Reactor Pulse 用于表征反应堆脉冲后期辐射环境的有源探测器的研制

Journal of Astm International Pub Date : 2012-05-01 DOI: 10.1520/JAI104164

S. M. Luker, P. Griffin, N. Kolb, G. Naranjo, A. Suo-Anttila

引用次数: 1

Thermal conductivity and rheological behaviour of Al-alloy dispersed ethylene glycol based nanofluids 铝合金分散乙二醇基纳米流体的热导率和流变行为

Journal of Astm International Pub Date : 2012-05-01 DOI: 10.1520/JAI104435

G. Paul, J. Philip, B. Raj, P. Das, I. Manna

引用次数: 1

Effect of Addition of Aluminum Nanoparticles on Cooling Performance and Quench Severity of Water during Immersion Quenching 纳米铝颗粒对水浸淬火冷却性能及淬硬程度的影响

Journal of Astm International Pub Date : 2012-05-01 DOI: 10.1520/JAI104404

G. Ramesh, K. Prabhu

{"title":"Effect of Addition of Aluminum Nanoparticles on Cooling Performance and Quench Severity of Water during Immersion Quenching","authors":"G. Ramesh, K. Prabhu","doi":"10.1520/JAI104404","DOIUrl":"https://doi.org/10.1520/JAI104404","url":null,"abstract":"In the present work, the effect of the addition of aluminum nanoparticles in concentrations varying from 0.001 to 0.5 vol. % on the cooling performance and quench severity of water during immersion quenching is investigated. The results of cooling curve analyses show that an increase in nanoparticle concentration increased the cooling rates at critical temperatures up to 0.05 vol. % and decreased them thereafter. The transition from the vapor blanket stage to the nucleate boiling stage was also altered by quenching in nanofluids. A finite difference heat transfer program was employed to generate cooling curves at different values of heat transfer coefficient from thermo-physical properties of the quench probe material. A Grossmann H quench severity versus cooling rate curve was established, and from this curve, the H factors of prepared nanofluids were estimated. An increase in nanoparticle concentration up to 0.05 vol. % resulted in an increase of the H value of water from 63 m−1 to 93 m−1, and any further increase in the concentration of nanoparticles resulted in a decrease in H. The results suggest both the enhancement and the deterioration of the cooling performance of water by the addition of aluminum nanoparticles.","PeriodicalId":15057,"journal":{"name":"Journal of Astm International","volume":"28 1","pages":"104404"},"PeriodicalIF":0.0,"publicationDate":"2012-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84461117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Kinematic Stability Evaluation of Spinal Fusion Devices by Synthetic FSU Model 用合成FSU模型评价脊柱融合装置的运动稳定性

Journal of Astm International Pub Date : 2012-05-01 DOI: 10.1520/JAI103496

T. Hansen

{"title":"Kinematic Stability Evaluation of Spinal Fusion Devices by Synthetic FSU Model","authors":"T. Hansen","doi":"10.1520/JAI103496","DOIUrl":"https://doi.org/10.1520/JAI103496","url":null,"abstract":"The purpose of the paper is to open discussion for an alternative methodology for stability testing of spinal fusion devices that does not require cadaveric tissue. A simulated single level functional spinal unit (FSU) model was used to evaluate spinal fusion devices as an alternative to using cadaveric human tissue models. Initially, this study was proposed as a feasibility investigation prior to investing in a cadaveric study, but was then developed into an alternative, stand-alone method that eliminates variabilities associated with cadaveric tissue testing for providing comparison testing between spinal devices. The objective of this paper is to present the development of the synthetic FSU model and the apparatus for providing kinematic stability testing on lumbar interbody spinal devices. The synthetic model geometry was based on morphological parameters for the lumbar spine using rigid foam per ASTM F1839. A universal servo-controlled test frame provided the pure moment loading through a system of cables and pulleys for the application of flexion-extension, lateral bending, and axial rotation. Comparable testing was performed using short cyclical, fully reversing runs up to 50 cycles where the last ten cycles were evaluated.","PeriodicalId":15057,"journal":{"name":"Journal of Astm International","volume":"91 1","pages":"103496"},"PeriodicalIF":0.0,"publicationDate":"2012-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82445057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Easy Ambient Sonic-Spray Ionization Mass Spectrometry: An Alternative Method to Quantify Organic Impurities in Biodiesel 简易环境声波喷雾电离质谱法:定量生物柴油中有机杂质的一种替代方法

Journal of Astm International Pub Date : 2012-05-01 DOI: 10.1520/JAI104552

R. Alberici, V. Souza, Lenise V. Gonçalves, V. Cunha, M. Eberlin, R. J. Daroda

引用次数: 2

The Mechanism of Adhesion Improvement of Elastomeric Silicone Sealants to Difficult-to-Bond Polymeric Substrates through Reactive or Interpenetrating Molecular Brushes 通过反应性或互穿性分子刷改善弹性硅酮密封胶与难粘合聚合物基材的粘合机理

Journal of Astm International Pub Date : 2012-05-01 DOI: 10.1520/JAI104275

W. Gutowski, G. Toikka, Sheng Li

引用次数: 2

Influence of the Reaction Conditions on the Ester Content and Characterization of Biodiesel via Ethylic Route 反应条件对乙基生物柴油酯含量及表征的影响

Journal of Astm International Pub Date : 2012-05-01 DOI: 10.1520/JAI104452

Sérgio L. Ferreira, Antônio Moreira dos Santos, G. R. D. Souza, W. Polito

引用次数: 0