Biomass porous carbons derived from Laminaria japonica were prepared by KOH and H3PO4 activation methods, respectively. The results indicated that the chemical activation had an apparent effect on the molecular framework and space of materials. To enhance the selective adsorption for organic acids, biomass carbons were modified by dopamine combined with N-(2-aminoethyl)-3-aminopropyltrimethoxysilane. The SEM and BET results illustrated the effect of the chemical activation approach on the morphology and porous texture. The biomass porous carbon using KOH activation method had the highest surface area (up to 1558 m2/ g). Compared with unmodified materials, the modified materials showed higher adsorption capacity for organic acids (27.90 μg/mL for chlorogenic acid and 25.47 μg/mL for caffeic acid). It was suggested that modification of porous carbons might be a viable pathway to increase the specific adsorption affinity and efficiency for organic acids in dried jujube samples.

In order to improve the thermal shock and ablation resistance of high thermal conductivity carbon/carbon composites, carbon nanotubes (CNTs) were introduced by electrophoretic deposition. After modification, the flexural strength of the composites increases by 53.0% due to the greatly strengthened interfaces. During thermal shock between 1100 °C and room temperature for 30 times, the strength continues to increase, attributed to the weakened interfaces in favor of fiber and CNT pull-out. By introducing CNTs at interfaces, thermal conductivity of the composites along the fiber axial direction decreases and that along the fiber radial direction increases. As the thermal shock process prolongs, since the carbon structure integrity of CNT and matrix in the modified composites is improved, the conductivity increases whatever the orientation is, until the thermal stress causes too many defects. As for the anti-ablation performance, the mass ablation rates of the CNT-modified composites with fibers parallel to and vertical to the flame decrease by 69.6% and 43.9% respectively, and the difference in the mass ablation rate related with fiber orientations becomes much less. Such performance improvement could be ascribed to the reduced oxidative damage and the enhanced interfaces.

To investigate the effect of gas dispersing carbon nanotubes (CNTs) and hot pressing method on the transparency and the conductivity of thin films, the free arc was used to disperse the CNTs in a high dispersion rate, and the dispersed CNTs were rapidly pressed into the surface of the PET film by hot pressing to obtain electrical conductivity. The relationship between the light transmission and sheet resistance of the film was studied by changing the deposition time and the presence or absence of electrostatic adsorption. It was found that the CNTs modified film still retains good electrical conductivity (sheet resistance up to 6 × 104 Ω, light transmittance 69%) through the cleaning of surfactants and ultrasonic waves, which proves that hot pressing is a simple physical method to achieve effective combination of CNTs and films.

세계적인 침입해충 담배가루이 (Bemisia tabaci Gennadius)의 한국 계통과 중국 계통의 유연관계를 알아보기 위하여 2019년에 채집한 두 계통들의 biotype 분포, 살충제 반응, 바이러스 보독율을 조사하고 차이를 분석하였다. 미토콘드리아 COI 유전자 서열을 이용하여 집단 분석한 결과 국내는 모든 지역계통에서 Q biotype만 발견되었으며, 중국은 B biotype (14.3%)과 Q biotype (85.7%)이 동시에 발견되었다. 담배가루이 Q biotype의 haplotpye 구성도 중국은 모두 Q1 그룹만 관찰되었고 Q1H1 (79.8%), Q1H2 (20.2%)로 구성되어 있었으며, 한국은 Q1이 우세한 가운 데 Q2도 관찰되었으며 Q1 그룹의 구성도 Q1H1 (1.7%), Q1H2 (97.5%)로 중국과는 크게 달랐다. 15종 살충제에 대한 약제반응은 국내 계통은 일부 약제를 제외하고 대부분 약제에서 충분한 살충력 (mortality≥80%)을 보여주었으나 중국 계통은 40% 이하의 살충력을 보인 약제들이 다수 있었으며 한국보다는 높은 저항성을 갖고 있었다. 토마토 황화잎말림바이러스 (TYLCV)의 보독율은 국내 계통에서는 발견되지 않았으며 중국의 경우 0∼60% (평균 21.4%) 가 발견되었다. 따라서 한국와 중국의 담배가루이 계통 간에는 유전적 조성과 살충제 반응, 바이러스 보독율에 있어서 큰 차이를 보여주었으며 양국의 담배가루이가 서로 다른 유입 패턴을 갖고 있음을 알 수 있었다.

랜덤은 게임의 재미에 핵심적인 역할을 한다. 이는 랜덤의 불확실성이 플레이어에게 놀라움을 주기 때문이다. 고전적 게임에서 랜덤은 일반적으로 게임 플레이에 활용되어 왔다. 이러한 랜덤은 스토리텔링에 참여하지 않은 반면, 현재는 인터랙티브 스토리텔링의 서술구조에 랜덤 시스템이 활용된 게임이 계속 등장하고 있으며 많은 플레이어들의 인정을 받고 있다. 이러한 게임들은 플레이어들에게 개인화된 경험을 제공할 뿐만 아니라 게임 스토리텔링 자체도 다양하게 만든다. 이러한 랜덤은 직접적으로 스토리텔링에 참여하며, 스토리텔링의 완전성과 논리성 을 보장하기 위해 항상 통제된 시스템이다. 랜덤 시스템에 있어 합리적인 디자인과 랜덤에 대한 효과적인 통제가 고전적 인터랙티브 스토리텔링에 새로운 가능성을 준다고 할 수 있다. 본 연구는 이러한 랜덤 시스템을 통제적 랜덤 스토리텔링 시스템으로 정의하였고, 그의 필수요소에 대해 분석과 요약을 시도하였다. 그다음에 게임 '레인즈'를 중심으로 통제적 랜덤 스토리텔링 시스템의 구체적인 구조와, 인터랙티브 스토리텔링 측면에서 어떤 특징이 있는지 연구하였다. 마지막으로 실제 게임 개발에 있어, 이러한 통제적 랜덤 스토리텔링 시스템의 활용 방법과 장단점에 대해 검토였다. 연구를 통하여 통제적 랜덤 스토리텔링 시스템은 전통적 인터랙티브 스토리텔링 게임의 트리 구조를 풀고 생성적 스토리의 효과를 실현하면, 생성 가능한 스토리 텔링 양상의 수를 크게 증가시킨다는 사실을 발견하였다. 그러나 이는 독립적 사건의 디자인와 밸런스 디자인에 대한 요구가 높아 비논리적 스토리텔링 양상을 생성하기 쉽다.

Systematic literature reviews (SLR) are very important to track the extent to which studies related to the formulation of Halal Catering on board have been previously studied by previous scholars. Therefore, the SLR study requires a clear and detailed understanding concerning the study direction for each selected article by analyzing the scope of the study and its dimensions as the main emphasis whether it has been discussed by any previous scholar or otherwise. Through the basis of the analysis of literature reviews will enable the specific detection of the title of the study. Even SLR analysis is also able to compare in terms of the year the article was published by comparing the differences in scope and dimensions of each article by selected scholars referred to 16 scholars from the year 2012 until 2017. Regards to methodology, SLR emphasised into five stages such as i) Time Frame, ii) Selection of a database, iii) Journal selection, iv) Article selection and v) Literature review analysis. Analysis, discussion, and findings will be focusing on the scope, dimensions, and years of studies by using figures, tables as facilitators of analysis and findings. Hence, the role of Halal institutions will be able to assess its ability to form halal rules with the involvement of stakeholders and the scope that has been affected in detail.

Reducing CO2 into high value fuels and chemicals is considered a great challenge in the 21st century. Efficiently activating CO2 will lead to an important way to utilize it as a resource. This article reviews the latest progress of g-C3N4 based catalysts for CO2 reduction. The different synthetic methods of g-C3N4 are briefly discussed. Article mainly introduces methods of g-C3N4 shape control, element doping, and use of oxide compounds to modify g-C3N4. Modified g-C3N4 has more reactive sites, which can significantly reduce the probability of photogenerated electron hole recombination and improve the performance of photocatalytic CO2 reduction. Considering the literature, the hydrothermal method is widely used because of its simple equipment and process and easy control of reaction conditions. It is foreseeable that hydrothermal technology will continue to innovate and usher in a new period of development. Finally, the prospect of a future reduction of CO2 by g-C3N4-based catalysts is predicted.

This qualitative research aims to explore the challenges faced by rural youth entrepreneurs in conducting digital marketing. Digital marketing activities carried out by them are still limited in social media and e-commerce applications. The challenges are fraud, internet infrastructure, delivery services, the development of digital technology adaptation and work-life balance.

This paper presents a review of the research literature on overweight and obesity problem by incorporating medical, economic and marketing research perspectives to shed lights on the growing problem across all ages and socioeconomic strata. We draw upon multidisciplinary research literature to gain a better understanding of the major causes as well as proposed remedies. Some are more likely to be more successful in addressing the difficult problem. Our conclusion is that as the issues are quite complex, no one single solution will work. It probably will require all stakeholders to be involved in order to come up with a reasonable solution to address this difficult problem. More researches need to be conducted, especially research involving cross country comparison to provide greater insights since this problem has become a global problem and not just confined to the developed economies in the West.

The purpose of this study is to explore the value structure of sharing economy for consumers, and to construct a model of consumers' continuoususe intentionin the sharing economy. Firstly, based on the characteristics of sharing economy platform technology, this paper explores the composition of platform value (time adaptability, location adaptability, content accessibility) through qualitative analysis. Then through quantitative analysis, this paper explores the influence of platform value on consumers' perception of emotional value and economic value. Finally, on this basis, this paper studies the impact of consumer value of sharing economy on consumer behavior, and compares and analyzes the impact of consumer value of sharing economy on consumers under different product types. In short, this paper aims to study the value creation of sharing economy from the perspective of consumption value, and shape its future development direction.

From the study of 5 informants using in depth interview, proactive marketing strategy is the key of success women-owned SMEs to struggle in covid-19 pandemic era. Utilize the digital technology is necessary to support effective marketing process.

Counterfeit luxury is big business in China (Chen et al. 2018). The U.S. Chamber of Commerce estimates China to be the source of 86% of the world’s counterfeit luxury goods worth about $397bn (USCC 2016). Counterfeit luxury encompasses not only low quality replicas (Lai and Zaichkowsky 1999), but also high quality products that are appear almost identical to original brands. However, the price of high quality counterfeits amounts in many cases to only 10% of that of the originals (Geiger-Oneto et al. 2013). This makes high quality counterfeit luxury brands a major threat to established luxury brands. Luxury brand marketers, therefore, require a better understanding of what motivates target consumers to purchase either original or counterfeit luxury brands.