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The purpose of this study is to develop an easy-to-use CAD software for fashion flat sketch that can create new sketches by combining the flat sketch modules.

A sample fashion flat module database was constructed by performing a sketch modularization process as well as a morphological analysis. In addition, an automatic module assembling algorithm was developed to create new sketches using the database.

The module assembling algorithm enabled the users to make new fashion flat sketches by the combination of design modules in the database. The example database constructed in this study was composed of bodice, sleeve, collar, cuffs and pocket modules chosen based on the results of a morphological analysis.

A CAD program has been developed that might improve the efficiency of design work by helping the users to make fashion flat sketches more easily.

The automatic module assembling algorithm developed in this study has not been implemented in any existing commercial systems. It is expected that users who do not have expertise in fashion design could be able to participate from the clothing design stage as a mass customization prosumer by using the software.

As the US-China conflict intensifies, the United States is pursuing a ‘decoupling’ strategy to build a new world trade order, arguing that the current World Trade Organization (WTO) system does not properly regulate China's non-market economic system. The WTO provides special and differentiated treatment (S&DT) for developing countries. The United States argues that China should give up its developing country (DC) status. Sufficient research on the DC status and S&DT has not been conducted as a means of resolving the US-China conflict. Decoupling means the collapse of the global supply chain (GSC), which will bring substantial shock to the global economy and a catastrophe for China. This paper examines the re-classification of DC status and S&DT in the context of US-China conflict and seeks an approach for China to avoid decoupling and coexist with the United States. It would be an optimal way for China to revive the WTO first and to improve its economic system through negotiations under the WTO.

The primary objectives of the article are to systematically investigate the effects of differentiated functions of WeChat use (social use and recreational use) on university students' online self-presentation, social support and sense of belonging.

The data were collected from a web-based survey on a sample of 485 university students in mainland China. Correlation analyses and structural equation modeling (SEM) were implemented to address the corresponding hypotheses.

The results demonstrate that the social use of WeChat is positively related to online self-presentation, whereas recreational use is unrelated to such behavior. Additionally, the findings verify that online self-presentation is a significant predictor of both social support and sense of belonging. Furthermore, online self-presentation could mediate the influence of social use of WeChat on social support and sense of belonging.

Theoretically, the study represents an initial effort to elucidate the joint impact of differentiated functions of WeChat use and online self-presentation on social support and sense of belonging. Practically, these findings identify the crucial mediation role of online self-presentation in assisting individuals to acquire social support and promote sense of belonging.

Although mobile social media has brought dramatic revolutions in interaction and interpersonal behaviors, the empirically studies regarding the potential influences of its utilization are equivocal. These outcomes may shed meaningful light on the comprehending of unique characteristics of WeChat communication and how it could impact people's psychosocial development in the digital era.