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R. Boman,J.-P. Ponthot 한국소성가공학회 2010 기타자료 Vol.2010 No.6
Due to the length of the mill, accurate modelling of stationary solution of continuous cold roll forming by the finite element method using the classical Lagrangian formulation usually requires a very large mesh leading to huge CPU times. In order to model industrial forming lines including many tools in a reasonable time, the sheet has to be shortened or the element size has to be increased leading to inaccurate results. On top of this, applying loads and boundary conditions on this smaller sheet is usually more difficult than in the continuous case. Moreover, transient dynamic vibrations, which are unnecessarily computed, may appear when the sheet hits each tool, decreasing the convergence rate of the numerical simulation. Beside this classical Lagrangian approach, an alternative method is given by the Arbitrary Lagrangian Eulerian (ALE) formalism which consists in decoupling the motion of the material and the mesh. Starting from an initial guess of the sheet geometry between the rolls, the numerical simulation is performed until the stationary state is reached with a mesh, the nodes of which are fixed in the rolling direction but are free to move on perpendicular plane, following the geometrical boundary of the sheet. The whole forming line can then be modelled using a limited number of brick and contact elements because the mesh is only refined near the tools where bending and contact occur. In this paper, ALE results are compared to previous Lagrangian simulations and experimental measurement on a U-channel, including springback. Advantages of the ALE method are finally demonstrated by the simulation of a tubular rocker panel on a 16-stands forming mill.
Björn Boman 이화여자대학교 아시아여성학센터 2022 Asian Journal of Women's Studies(AJWS) Vol.28 No.4
While contemporary South Korea is fairly westernized but represents a lag in the spheres of culture and politics, it is expected that the current Korean wave or Hallyu 4.0 – popular cultural content, diffused as of 2016 – are cumulatively signified by feminist themes, merged with more traditional Korean and East Asian cultural elements. Five representative Hallyu 4.0 dramas are examined here, based on cultural globalization theory (e.g., hybridization), along with a review of some earlier studies of Korean dramas and relevant strands of feminist scholarship. The findings suggest that much of the moderately modern elements found in earlier waves of Korean drama are still present, while liberal or neoliberal feminist elements are manifest in all five shows, although to different degrees. This ideological shift, in part, reflects recent sociocultural changes.
The effect of equity initiatives by gendered brands
Nelson Dolph F.,Boman Laura,Hewage Ganga S. Urumutta 한국마케팅과학회 2024 마케팅과학연구 Vol.34 No.1
The current study examines how brand gender can influence consumer outcomes when a brand takes a gender equity initiative. We show that brands that are perceived as feminine realize greater positive effects from gender equity initiatives than brands that are perceived as masculine. This effect is mediated by the fit between brand gender and the gender equity initiative. Further, we explore a theoretically and managerially relevant boundary condition: prior equity initiatives. The research presented here contributes to the literature on brand gender, brand fit, and corporate social responsibility. Our work also has implications for practitioners.
Urumutta Hewage Ganga S.,Klucarova Sona,Boman Laura 한국마케팅과학회 2021 Journal of Global Fashion Marketing Vol.12 No.4
From the lens of conspicuous consumption, this research examines the interactive effect of brand logo size and political ideology on consumers’ intentions toward fashion products. Specifically, in a series of four studies, we address how consumer political ideology influences intentions toward items displaying smaller, inconspicuous logos versus larger, conspicuous logos for unfamiliar and familiar brands. We show that liberal consumers are more likely to prefer a large (rather than small) logo when a brand is unfamiliar. We suggest that liberals’ greater desire for product uniqueness elevates their risk propensity, which in turn increases preference for conspicuous consumption when familiarity with a brand is low. We show that this effect occurs only for unfamiliar brands; when brand familiarity is high (i.e. a popular or well-known brand), consumer political ideology reverses consumer preference for conspicuous consumption, replicating prior work. Our results suggest that, by manipulating their logo size, new brands may effectively target consumers based on their political ideology.
Khanal, R.C.,Dhiman, T.R.,Boman, R.L.,McMahon, D.J. Asian Australasian Association of Animal Productio 2007 Animal Bioscience Vol.20 No.9
Three experiments were conducted to investigate the hypothesis that cows grazing on pasture produce the highest proportion of c-9 t-11 CLA in milk fat and no further increase can be achieved through supplementation of diets rich in linoleic acid, such as full-fat extruded soybeans or soybean oil. In experiment 1, 18 lactating Holstein cows were used in a randomized complete block design with measurements made from wk 4 to 6 of the experiment. In experiment 2, three cannulated lactating Holstein cows were used in a $3{\times}3$ Latin square design. Each period was 4 wk with measurements made in the final wk of each period. Cows in both experiments were assigned at random to treatments: a, conventional total mixed ration (TMR); b, pasture (PS); or c, PS supplemented with 2.5 kg/cow per day of full-fat extruded soybeans (PES). In both experiments, feed intake, milk yield, milk composition, and fatty acid profile of milk and blood serum were measured, along with fatty acid composition of bacteria harvested from rumen digesta in experiment 2. In experiment 3, 10 cows which had continuously grazed a pasture for six weeks were assigned to two groups, with one group (n = 5) on pasture diet alone (PS) and the other group (n = 5) supplemented with 452 g of soy oil/cow per day for 7 d (OIL). In experiment 1, cows in PS treatment produced 350% more c-9, t-11 CLA compared with cows in TMR treatment (1.70 vs. 0.5% of fat), with no further increase for cows in PES treatment (1.50% of fat). Serum c-9, t-11 CLA increased by 233% in PS treatment compared with TMR treatment (0.21 vs. 0.09% of fat) with no further increase for cows in PES treatment (0.18% of fat). In experiment 2, cows in PS treatment produced 300% more c-9 t-11 CLA in their milk fat compared with cows in TMR treatment (1.77 vs. 0.59% of fat), but no further increase for cows in PES treatment (1.84% of fat) was observed. Serum c-9, t-11 CLA increased by 250% for cows in PS treatment compared with cows in TMR treatment (0.27 vs. 0.11% of fat), with no further increase for cows in PES treatment (0.31% of fat). The c-9, t-11 CLA content of ruminal bacteria for cows in PS treatment was 200% or more of TMR treatment, but no further increase in bacterial c-9, t-11 CLA for cows in PES treatment was observed. Supplementation of soy oil in experiment 3 also did not increase the c-9 t-11 CLA content of milk fat compared with cows fed a full pasture diet (1.60 vs. 1.54% of fat). Based on these findings, it was concluded that supplementing with feeds rich in linoleic acid, such as full-fat extruded soybeans or an equivalent amount of soy oil, to cows grazing perennial ryegrass pasture may not increase milk fat c-9 t-11 CLA contents.