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31.
32.
Emmanuel Creusé Patrick Dular Serge Nicaise 《Computers & Mathematics with Applications》2019,77(6):1563-1582
In this paper, we deal with some magnetostatic models considered in vector potential formulations and solved by a Finite Element solver. In order to ensure the uniqueness of the solution, a gauge condition has to be imposed, and several possibilities occur. Moreover, the source term has to be correctly defined to ensure a physically admissible solution. We show the equivalence between some of these choices for several kinds of boundary conditions. Moreover, we highlight their characteristic behaviors on some numerical benchmarks to illustrate our theoretical results. 相似文献
33.
Serge Maillard 《钟表》2018,(3)
正为了充分认识中国当前翻天覆地的变化对制表业所产生的深远影响,我们不妨先退一步,来了解一下中国正在进行深层次的改革。不难发现,钟表购买行为正受到一股爱国浪潮的影响。我们先来看一组数据:今年全球前10大集装箱港口,中国就占了七席;而中国政府还计划在未来5年内对新「丝绸之路」沿线国家投资9000亿美元。在北京邻省,一个新的科技和经济中心正在兴起;而在中国最富有的广东省,也有不少城市搭上了这趟高速发展的快车。 相似文献
34.
Amélie Deglaire Caroline Méjean Katia Castetbon Emmanuelle Kesse-Guyot Christine Urbano Serge Hercberg Pascal Schlich 《Food quality and preference》2012,23(2):110-124
Liking for a sweet, salty or fatty diet may induce overconsumption of simple carbohydrates, sodium or lipids. Measuring overall liking of the corresponding sensory sensations contributes to understanding the determinants of dietary behaviours. However, no standardized validated questionnaire assaying these sensations is currently available. In the present study, we developed a web-based questionnaire, “PrefQuest”, which measures recalled liking for the following four sensations: salt, fat and salt, sweet, fat and sweet. PrefQuest included four types of items: (1) liking for sweet, fatty-sweet and fatty-salty foods, (2) preferences in the level of seasoning by adding salt, sweeteners, or fat, (3) preferences for types of dishes in a restaurant menu and (4) overall questions about sweet-, salt- and fat-related behaviours. A development study (n = 198) demonstrated that PrefQuest was feasible, well-perceived, only lasted about 20 min and that items were repeatable (overall mean intra-class correlation coefficient: 0.77, SD 0.08). Construct validity was then evaluated on a larger population sample (n = 47 803). The underlying structure within each of the four sensations was determined by exploratory factor analysis and then internally validated by confirmatory factor analysis. After a selection of the most relevant items, the salt, fat-and-salt, sweet, and fat-and-sweet scales exhibited a theoretically meaningful factor structure, unidimensional for the salt scale and with interrelated sub-dimensions for the sweet, fat-and-salt, and fat-and-sweet scales. Based on the fat-and-sweet and fat-and-salt scales, a fat model was also unveiled. For each factor, internal consistency as well as convergent and divergent validities were demonstrated. Overall, PrefQuest is an internally valid and original tool that can be used to assay recalled liking for sweet, salt, and fat considered altogether or separately as fat and salt or fat and sweet, and can be applied to large population surveys. 相似文献
35.
Serge Hiligsmann Laurent BeckersJulien Masset Christopher HamiltonPhilippe Thonart 《International Journal of Hydrogen Energy》2014
A horizontal tubular fixed bed bioreactor (HFBR) and an anaerobic biodisc-like reactor (AnBDR) were designed to both fix Clostridium biomass and enable rapid transfer of the hydrogen produced to gas phase in order to decrease the strong effect of H2 partial pressure and H2 supersaturation on the performances of Clostridium strains. The highest H2 production rate (703 mL H2/L h) and yield (302 mL/g glucose consumed i.e. 2.4 mol/mol) with the pure culture were recorded in the AnBDR with 300 mL culture medium (total volume 2.3 L) at pH 5.2 and a glucose loading rate of 2.87 g/L h. These results are about 2.3 and 1.3-fold higher than those achieved in the same bioreactor with 500 mL liquid medium and with the same glucose consumption rate. Therefore, our experimentations and a short review of the literature reported in this paper emphasize the relevance of performing bioreactors with high L/G transfer. 相似文献
37.
Serge Carreira 《服装设计师》2013,(10):I0021-I0021
Meme si elle se tient a I'ecart des journalistes et des photographes, Phoebe Philo a su hisser, en cinq ans, la maison Celine au sommet. Elle a aussi impose un nouveau regard sur I'elegance feminine. Au point que CNN considere que la styliste britannique fait aujourd'hui partie des dix femmes les plus puissantes de I'industrie de la mode. C'est la consecration de la 《 reine du nouveau minimalisme 》. 相似文献
38.
39.
Proposition of a New Severity Analysis Based on ‘Shake’ Detection: Example of the Vatry Airport Tarmac 下载免费PDF全文
Victor Huart Jean‐Charles Candore Jean‐Baptiste Nolot Nicolas Krajka Jérôme Pellot Serge Odof Damien Erre 《Packaging Technology and Science》2015,28(6):529-544
In packaging science, the study of transport is important in determining the viability of a package/product pair. Many load breaks occur (e.g. handling and storage) along a supply chain. Transport also generates various physical stresses (e.g. shocks, shakes and vibrations). These physical phenomena can be recorded using a variety of customized sensors (e.g. tri‐axial accelerometers, temperature sensors and pressure sensors). This study focuses on a transport phase that has not been studied in depth to date. Transportation operations on tarmacs include many handling and transportation machines, which are characterized by typical constraints that are often more stringent than airlift phase constraints. For comparison, acceleration distributions were estimated and analysed for the tarmac phase and road phase. Severity indicators were calculated based on existing methods. The second part of this study addresses the study of shakes. The shake distributions at 90 and 95% were another indicator of the shakes' severity and probability of occurrence. These elements allow us to characterize the impact of the tarmac area during air transport. 相似文献
40.
Xuetao Shi Serge Ostrovidov Yihua Zhao Xiaobin Liang Motohiro Kasuya Kazue Kurihara Ken Nakajima Hojae Bae Hongkai Wu Ali Khademhosseini 《Advanced functional materials》2015,25(15):2250-2259
Engineering living tissues that simulate their natural counterparts is a dynamic area of research. Among the various models of biological tissues being developed, fiber‐shaped cellular architectures, which can be used as artificial blood vessels or muscle fibers, have drawn particular attention. However, the fabrication of continuous microfiber substrates for culturing cells is still limited to a restricted number of polymers (e.g., alginate) having easy processability but poor cell–material interaction properties. Moreover, the typical smooth surface of a synthetic fiber does not replicate the micro‐ and nanofeatures observed in vivo, which guide and regulate cell behavior. In this study, a method to fabricate photocrosslinkable cell‐responsive methacrylamide‐modified gelatin (GelMA) fibers with exquisite microstructured surfaces by using a microfluidic device is developed. These hydrogel fibers with microgrooved surfaces efficiently promote cell encapsulation and adhesion. GelMA fibers significantly promote the viability of cells encapsulated in/or grown on the fibers compared with similar grooved alginate fibers used as controls. Importantly, the grooves engraved on the GelMA fibers induce cell alignment. Furthermore, the GelMA fibers exhibit excellent processability and could be wound into various shapes. These microstructured GelMA fibers have great potential as templates for the creation of fiber‐shaped tissues or tissue microstructures. 相似文献