Congrès International d'Architecture Moderne

About: Congrès International d'Architecture Moderne is a based out in . It is known for research contribution in the topics: Boundary value problem & Jet (fluid). The organization has 393 authors who have published 403 publications receiving 4104 citations.

A New Method in Data Envelopment Analysis to Find Efficient Decision Making Units and Rank both Technical Efficient and Inefficient DMUs together

Abstract: The inefficient DMUs are usually arranged after the technical efficient ones by DEA methods, however, it is possible that a technical efficient DMU neither be efficient nor be more efficient than some inefficient ones. This study distinguishes between the terms ‘technical efficiency’ and ‘efficiency’ and demonstrates that the technical efficiency is a necessary condition for being efficient and it is not an enough condition to call a DMU as efficient DMU. The study identifies the definitions of those terms and gives a new strong method to characterize efficient DMUs among the technical efficient ones. The new method, although, avoids the need for recourse to prices, weights or other assumptions between inputs and outputs of DMUs, it is also able to consider the prices and weights. A numerical example is also characterized the worth and benefits of the new proposed model in comparison with all current DEA models.

New Exact Solutions for MHD Transient Rotating Flow of a Second-Grade Fluid in a Porous Medium

Abstract: The magnetohydrodynamic (MHD) and rotating flow of second-grade fluid over a suddenly moved flat plate is investigated, where the second-grade fluid saturates the porous medium. The new exact solution is derived by using the Fourier sine and Laplace transforms. Many interesting available results in the literature are obtained as limiting cases of our solution. Finally, some graphical results are presented for different values of the material constants.

Physicochemical and biochemical properties of an acid soil under potato culture amended with municipal solid waste compost

Abstract: A field trial was conducted on a silty-loam soil under potato culture in NW Spain, to assess the effect of municipal solid waste (MSW) compost in a heavily fertilized acid soil. Three doses of compost (0, 30 and 60 Mg compost ha−1 soil) or inorganic fertilization (~ 140 N: 120 P2O5: 240 K2O kg ha−1 soil) were assayed. The effects of compost on soil physical, chemical (nutrient status and potentially toxic trace elements) and biochemical properties were evaluated after 1 and 5 months. Compost addition at the highest dose decreased bulk density and increased soil porosity and soil stability against water erosion. Soil pH, total organic C and N, cation exchange capacity and available P, Ca, Mg and K were also higher in compost-amended soils, whereas no effect on NH4+-N and NO3−-N was observed. Compost significantly increased soil microbial biomass and dehydrogenase activity. Due to the high nutrient status in the control soil, potato yield was not increased by compost or inorganic fertilization. A negative consequence of compost addition was the increased extractability of trace metals such as Zn, Cu, Pb and Ni, although their total concentrations in soil or in potato tubers did not increase with respect to the control. Overall, results show that positive effects of MSW compost can be expected even in rich soils that do not need fertilization for maintaining their productive function in the short-term. These positive effects prove the benefits of recycling urban wastes in agricultural soils as a sustainable way of waste management.

Fuzzy logic-assisted geographical routing over vehicular ad hoc networks

Abstract: Vehiculiu: Ad Hoc Network" (VANET,,) i" a type of ad hoc network that allows vehicles to communicate with each other in the absence of ji'J:ed infrastruct'ure. Inter-vehicle geographic ro'uting has been proven to perform well in high speed vehic'ular environments. In connected and reliable cehicular scenarios, greedy based geographical toutuu; protocol" could forward data packet" efficiently and q'uiekly toward" the de"tination. However, e'J:tremely dynamic cehicular euoironmcnts and 'uneven distrib'ution of vehicles could create 'unreliable wireless charmels between vehicles and disconnected cehicular partitions. On the one hand, in connected uehiculur networks, an intelligent multi-metric ro'uting protocol must be e'J:ploited in consideration of the 'unreliable nature of wireless channcls between vehicles and vehic'ular mobility characteristics. On the other hand, a mechanism must be 'utilized to create a tnrtuu! bridge between vehicles in disconnected cehicular scenurios. To thi" end, we fir"tly propose a novel Stability and Reliability aware Routinq (SRR) protocol that forward" packet" with a high degree of reliability and "tability toward" the destination. That is, the SRR protocol incorporate" fuzzy loou: with geographical ro'uting when making packet forwarding decisions. Ro'uting metric», sucl: as direction and distance, are considered as inp'uts of the fuzzy decision making system so that the best preferable neighbo'ur annuul a "mart vehiele i" "elected. We then 'utilize a mechanism to cache data packets once the network is disconnected and then switch back to SRR in a connected vehic'ular scenario. Traffic density is considered as an inp'ut when estimating network dis-connectivity. After devcloping an analytical modcl of our protocol, we implemented it and compared it with standard protocols. In a realistic highway uchicular scetuirio, the results "how that the propo"ed protocol perform" better than Greedy Perimeter Coordinator RO'uting (GPCR) with increases of 'up to 21.12 %, 2.9.,14 % and //..98 %in packet dcliver;1J ratio in high lossy clumnel, sparse, and dense traffic conditions respectivcly. In terms of average packet dclay, SRR performs better with performance increases of 'up to 2,1..92 % in deus« traffic condition". But, GPCR perform" better in sparse traffic condition" by 'up to ,16.,10 %. Finally, SRR ha" Ie"" control overhead than the "tate of the art protocol".

Anti-Aging Effects of GDF11 on Skin.

Abstract: Human skin is composed of three layers: the epidermis, the dermis, and the hypodermis. The epidermis has four major cell layers made up of keratinocytes in varying stages of progressive differentiation. Skin aging is a multi-factorial process that affects every phase of its biology and function. The expression profiles of inflammation-related genes analyzed in resident immune cells demonstrated that these cells have a strong ability to regenerate adult skin stem cells and to produce endogenous substances such as growth differentiation factor 11 (GDF11). GDF11 appears to be the key to progenitor proliferation and/or differentiation. The preservation of youthful phenotypes has been tied to the presence of GDF11 in different human tissues, and, in the skin, this factor inhibits inflammatory responses. The protective role of GDF11 depends on a multi-factorial process implicating various types of skin cells such as keratinocytes, fibroblasts and inflammatory cells. GDF11 should be further studied for the purpose of developing novel therapies for the treatment of skin diseases.