This study explores the contemporary reinterpretation of traditional suit design through the lens of post-structuralist philosopher Jacques Derrida’s concept of decentralization. The objective is to systematically analyze the diverse expression methods of decentralized suits in contemporary fashion and identify their design characteristics, thus exploring various design possibilities for decentraliz suits. To achieve this, the study examines the deconstructivist fashion collections of notable designers such as Martin Margiela, Rei Kawakubo of Comme des Garçons, Alexander McQueen, and Thom Browne, analyzing 269 decentralized suits from their men’s collections from 2009 to the present. The methods of decentralization are categorized based on the structure (composition), details, and materials of the garments, are classified into deconstruction, discontinuity, and disorder. Specific expression methods include irregular wearing, layering, asymmetry, and distortion for deconstruction; omission, heterogeneous insertion, material transition, and separation for discontinuity; and tearing, graffiti, and unfinished elements for disorder. The identified design characteristics are as follows: gender-neutral and category-free, which dismantles the rigid formality and masculine image of suits to allow flexible and diverse gender expressions; integration of unconventional elements, which combines traditional suit design with non-traditional details like ruffles, strings, unfinished edges, and graffiti to create new designs; and sustainable design, which utilizes the deconstruction and recombination of existing suits to recycle discarded suits, making it suitable for upcycling.

3D printing using ceramic powder to produce precision ceramic parts has been studied with various additive manufacturing methods. This study analyzed problems occurring in alumina additive manufacturing that uses digital light processing (DLP) as well as methods to address such problems. For efficient analysis, we have classified alumina additive manufacturing into three types according to the driving method of the build platform - lifting type (LT), tilting type (TT) of the vat, and blade movement type (BT). LT had a problem with detachment and cracking of the alumina green body. However, this could be prevented by carefully controlling the cure depth of the suspension slurry and the bonding force between layers and improving the material used for coating the vat. TT, which resulted in non-uniform alumina additive manufacturing, could be improved by modifying the bidirectionality of the axis and the fluidity of the highly viscous alumina suspension slurry. BT resulted in detachment of the specimen as well as non-uniform results, but this could be avoided by shortening the shifting distance of the alumina suspension when it is introduced to the build platform, and enabling effective spreading.

The development of the electronics industry has led to an increased demand for the manufacture of MLCC (Multilayer Ceramic Capacitors), which in turn is expected to result in a rise in MLCC waste. The MLCC contains various metals, notably barium, titanium, and nickel, whose disposal is anticipated to increase correspondingly. Recently, recycling technologies for electronic waste have garnered attention as they address waste management and raw material supply challenges. This paper investigates the recovery of barium, nickel, and titanium from the MLCC by a hydrometallurgical process. Using citric acid, which is an organic acid, the metal inside the MLCC was leached. Additionally, metal materials were recovered through precipitation and complexing processes. As a result, barium and titanium were recovered from the leachate of the waste MLCC, and 93% of the nickel-based powder was recovered. Furthermore, the optimal recovery process conditions for recycling these metal elements were investigated.

In this study, we have determined mitochondrial genome of Matsucoccus thunbergianae isolated in Korea. The circular mitogenome of M. thunbergianae is 15,406 bp including 13 protein-coding genes, two ribosomal RNA genes, and 22 transfer RNAs. AT ratio is 78.2%. Maximum-likelihood and Bayesian inference phylogenetic trees show that M. thunbergianae is clustered with M. matsumurae, and family Margarodidae is clustered with family Pseudococcidae with enough supportive values.