Comparative Study on the Supramolecular Nanocarriers Derived from the Assembly of Gemini and Conventional Surfactants onto Hyperbranched Polyethylenimine

Zhan-Long Yu,Fa Cheng,Shao-Jing Zhao,Jian-Wei Zhang,Zu-Cheng Cai,Yu Chen 한국고분자학회 2011 Macromolecular Research Vol.19 No.2

Conventional surfactant dodecylbenzenesulfonic acid (DBSA) and its corresponding Gemini surfactant acid (GSA) were simply mixed with a solution of hyperbranched polyethylenimine (HPEI) in chloroform. This resulted in the novel supramolecular complexes, HPEI-DBSA and HPEI-GSA, through a neutralization reaction between the amino groups of HPEI and the sulfonic-acid groups of DBSA and GSA. The formed supramolecular complexes and their precursors were characterized by FTIR, 1H NMR, and dynamic light scattering. HPEI-DBSA and HPEI-GSA exhibited inverted-micelle properties that could accommodate the water-soluble guest molecules in an apolar solvent. With the anionic dye methyl orange (MO) as the model guest, both HPEI-DBSA and HPEI-GSA showed superior guest-encapsulation performance than the supramolecular nanocarrier derived from the assembly of aliphatic acid onto HPEI. For example, HPEI-DBSA and HPEI-GSA nanocarriers could encapsulate more MO molecules, and a much smaller amount of the surfactant molecules was required to achieve the maximum MO encapsulation. These results highlight the importance of strong-acid groups of the surfactants in raising the guest-encapsulation efficiency of this type of supramolecular nanocarrier. HPEI-DBSA and HPEI-GSA had different guestencapsulation mechanisms. This indicates that HPEI-GSA can encapsulate basic guests more than HPEI-DBSA,such as MO and fluorescein sodium (FS), but fewer relatively acidic guests, such as Alizarin Yellow R sodium salt and bromophenol blue.

기업 브랜드 이미지 한국과 중국의 비교 연구

조옥룡(Yu-Long Zhao),김병대(Byung-Dae Kim) 한국콘텐츠학회 2021 한국콘텐츠학회논문지 Vol.21 No.3

치열한 경쟁 시장에서 브랜드는 사람들이 제품을 선택하는 중요한 기반이 되었으며 브랜드는 사람들의 지위와 힘의 상징이기도 하다. 따라서 브랜드 이미지 디자인의 중요성이 커지고 있다. 그리고 컬러는 감정의 표현이며 브랜드 이미지 중요한 요소로 브랜드 이미지의 커뮤니케이션 및 마케팅 환경을 개선 할 수 있다. 본 연구는 인터브랜드에서 2019년 한중 TOP 50 브랜드를 조사 대상으로 선정하고 각 브랜드의 홈페이지에서 브랜드 CI를 다운로드하여 Adobe Photoshop 프로그램과 HSB 시스템을 통해 이미지를 데이터화 한 후 브랜드의 컬러를 분석하였다. 한국과 중국 기업 브랜드의 컬러 특성을 분석 할 때 큰 차이가 없고 I.R.I 컬러 이미지 스케일을 분석 결과 한국 브랜드의 전체적인 디자인은 소비자에게 활기차고 고상하며 따뜻한 감성 형용사를 확인할 수 있다. 반면에 중국 브랜드의 전체적인 디자인은 소비자에게 엄숙하고 현대적이며 세련된 감성 형용사를 볼 수 있다. 결과를 바탕으로 본 연구는 기업이 자체 브랜드 런칭과 제품 개발시 컬러와 형태를 선정하는 것이 실무적인 시사점을 제공할 수 있다. In a fiercely competitive market, brands have become an important foundation for people to choose their products, and brands are also symbols of peoples status and strength. Therefore, the importance of brand image design is growing. And color is an expression of emotion and can improve the communication and marketing environment of brand image as an important element of brand image. In this study, Interbrand selected Korea-China TOP 50 brand as a survey target in 2019 and downloaded brand CI from each brands homepage to data images through Adobe Photoshop program and HSB system, and analyzed the color of the brand. There is no big difference in analyzing the color characteristics of Korean and Chinese brands, and the I.R.I color image scale analysis shows that the overall design of Korean brands is vibrant, elegant and warm to consumers. On the other hand, the overall design of the Chinese brand offers consumers a solemn, modern and sophisticated emotional adjective. Based on the results, this study can provide practical implications for companies to select colors and forms when launching their own brands and developing products.

대학 아이덴티티(University Identity) 디자인 요인 비교분석에 관한 연구: 한국과 중국 중심으로

조옥룡(Yu-Long Zhao),김병대(Byung-Dae Kim) 한국콘텐츠학회 2022 한국콘텐츠학회논문지 Vol.22 No.3

대학 아이덴티티(University Identity)는 대학의 정체성 확립과 하나의 고유한 이미지를 통합하여 학교가 지향하는 핵심 가치를 효과적으로 전달이 가능하다. 따라서 대다수의 대학은 대학 아이덴티티를 새롭게 정의하거나 문화상품을 내놓는 등 적극적인 홍보 전략을 펼치고 있다. 최근 기존의 광고나 홈페이지는 물론 인스타그램, 유튜브, 페이스북등의 SNS로 대학브랜드를 지속적으로 노출하며 차별화하고 있다. 본 연구는 ‘2021 QS World University Rankings’에서 ‘2021 QS ASIA University Rankings’의 한국과 중국의 상위 각 80개 대학 아이덴티티를 분석하여 디자인의 형태, 색상 수, 영어 표현에서 차이가 확인 된다. 그리고 한국과 중국대학의 시각화된 대학 아이덴티티 디자인의 계량화와 교차분석을 통한 양국의 시각적 표현 차이분석과 데이터의 정확성을 확보하기 위해 ‘Cohen’s Kappa’ 일치성 분석을 하였다. 연구결과 창의적이고 불규칙형태를 나타내며 파랑색, 빨강색, 초록색의 사용이 많으며 대부분 2가지 이내 색상의 사용을 볼 수 있다. 또한 대학 아이덴티티 디자인은 워드마크와 추상적 형식의 표현이 확인된다. 본 연구는 향후 대학의 국제화, 차별화된 대학 아이덴티티 디자인을 창출하기 위한 효과적인 기초자료로 시사점을 제시할 수 있다. University Identity can effectively convey the core values for which schools aim by establishing university identity and integrating one unique image. Therefore, most universities are actively implementing promotional strategies such as newly defining university identity or releasing cultural products. Recently, university brands have been continuously exposed and differentiated through SNS such as Instagram, YouTube, and Facebook as well as existing advertisements and homepages. This study analyzes the identities of the top 80 universities in Korea and China, by referring to the rankings of Asian universities in the 2021 QS World University Rankings, and addresses differences in terms of design shape, number of colors, and use of English. Moreover, ’Cohen’s Kappa’ consistency analysis was applied to secure data accuracy by analyzing the difference in visual expression of university identity between the two countries through quantification and cross-analysis of visualized university identity design of Korean and Chinese universities. As a result of the study, it is creative, irregular, and has a lot of use of blue, red, and green, and most of them can be seen in less than two colors. In addition, it turns out that word marks and abstract forms of expression are used for university identity design. This study can present implications as effective basic data for internationalizing universities and creating differentiated university identity designs in the future.

Identification of a Novel Human Zinc Finger Gene, ZNF438, with Transcription Inhibition Activity

( Zhao Min Zhong ),( Bo Wan ),( Yun Qiu ),( Jun Ni ),( Wen Wen Tang ),( Xin Ya Chen ),( Yun Yang ),( Su Qin Shen ),( Ying Wang ),( Mei Rong Bai ),( Qing Yu Lang ),( Long Yu ) 생화학분자생물학회 2007 BMB Reports Vol.40 No.4

In-pile tritium release behavior and the post-irradiation experiments of Li4SiO4 fabricated by melting process

Zhao Linjie,Yang Mao,Xiao Chengjian,Gong Yu,Ran Guangming,Chen Xiaojun,Li Jiamao,Yue Lei,Chen Chao,Hou Jingwei,Wang Heyi,Long Xinggui,Peng Shuming 한국원자력학회 2024 Nuclear Engineering and Technology Vol.56 No.1

Understanding the tritium release and retention behavior of candidate tritium breeder materials is crucial for breeder blanket design. Recently, a melt spraying process was developed to prepare Li4SiO4 pebbles, which were subsequently subjected to the in-pile tritium production and extraction platform in China Mianyang Research Reactor (CMRR) to investigate their in-situ tritium release behavior and irradiation performance. The results demonstrate that HT is the main tritium release form, and adding hydrogen to the purge gas reduces tritium retention while increasing the HT percent in the purge gas. Post-irradiation experiments reveal that the irradiated pebbles darken in color and their grains swell, but the mechanical properties remain largely unchanged. It is concluded that the tritium residence time of Li4SiO4 made by melt spraying method at 467 ◦C is approximately 23.34 h. High-density Li4SiO4 pebbles exhibit tritium release at relatively low temperatures (<600 ◦C) that is mainly controlled by bulk diffusion. The diffusion coefficient at 525 ◦C and 550 ◦C is 1.19 × 10 11 cm2/s and 5.34 × 10 11 cm2/s, respectively, with corresponding tritium residence times of 21.3 hours and 4.7 hours.

Electronic Structure, Phase Transition, and Elastic Properties of ScC under High Pressure

Yu-Xin Zhao,Jun Zhu,Yan-Jun Hao,Zi-Yuan Li,Long-Qing Chen,Guang-Fu Ji 한국물리학회 2015 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.67 No.12

The structural properties and the phase transition for scandium carbide (ScC) have been studied in NaCl (B1), CsCl (B2), ZB (B3), WZ (B4), NiAs (B81), WC (Bh), and Pmmn structures by using the pseudopotential plane-wave method in the framework of the density functional theory. Our theoretical results show that the most stable structure is the B1 phase, contrary to the result of Rahim et al. The phase transitions B1 ! Pmmn and Pmmn ! B2 are predicted at 83.7 and 109.7 GPa, respectively. At the same time, we find that the B3, B4, B81, and Bh phases are not stable over the whole pressure range considered. In particular, the elastic constants of Pmmn-ScC under high pressure are obtained successfully. The effects of pressure on the elastic properties of B1-ScC and Pmmn-ScC are also predicted. The Debye temperatures and the sound velocities of these two structures are estimated from the elastic constants, and by analyzing G/B, the brittle-ductile behavior of ScC is assessed. In addition, the density of states of B1-ScC at high pressures is also discussed.

Load and Mutual Inductance Identification Method for Series-Parallel Compensated IPT Systems

Long Chen,Yu-Gang Su,Yu-Ming Zhao,Chun-Sen Tang,Xin Dai 전력전자학회 2017 JOURNAL OF POWER ELECTRONICS Vol.17 No.6

Identifying the load and mutual inductance is essential for improving the power transfer capability and power transfer efficiency of Inductive Power Transfer (IPT) systems. In this paper, a steady-state load and mutual inductance identification method focusing on series-parallel compensated IPT systems is proposed. The identification model is established according to the steady-state characteristics of the system. Furthermore, two sets of identification results are obtained, and then they are analyzed in detail to eliminate the untrue one. In addition, the identification method can be achieved without extra circuits so that it does not increase the complexity of the system or the control difficulty. Finally, the feasibility of the proposed method has been verified by simulation and experimental results.

The protective effect of Jangkanghwan (Korean traditional food) on lipopolysaccharide‑induced disruption of the colonic epithelial barrier

Long Xingyao,Kim Yong-kyu,Yu Ting,Yi Ruokun,Zhao Xin,Park Kun-young 한국응용생명화학회 2021 Applied Biological Chemistry (Appl Biol Chem) Vol.64 No.6

Jangkanghwan (JKH) is a Korean traditional food that is a mixture of food ingredients and traditional Korean medicine ingredients, and it has been observed to produce satisfactory anti-inflammatory, antioxidant, and antibacterial effects. In the current study, JKH was administered by gavage to BALB/C mice with lipopolysaccharide (LPS)-induced colonic epithelial dysfunction, and mouse body weight and food intake were recorded. Indexes such as colonic paracellular permeability, serum inflammatory cytokines, and bacterial translocation were used to comprehensively evaluate the regulatory effect of JKH on mouse colonic epithelial function, and qPCR and Western blot were also used to analyze the expression of tight junction (TJ)-related genes, such as occludin, claudin, zonula occludens (ZOs) proteins, and junction adhesion molecules (JAM) in the colonic epithelial tissue. The experimental results indicated that JKH relieved the edema of the liver, spleen, and mesenteric lymph node tissues, and reduced the loss of appetite and diarrhea caused by LPS injection in mice. It increased the amount of mice food intake from 3.7 g/day in the LPS group to 4.7 g per day; the water content in the feces of mice in the JKH group was 13.86% less than that in the LPS group. JKH reduced the inflammatory response in mice caused by LPS, protected the integrity of the colon, the permeability of fluorescent macromolecules was one-fourth of the LPS group, and enhanced the mRNA and protein expression of TJ-related proteins in colon tissue. Our findings highlight that JKH has benefits in intestinal health and relieving systemic inflammation, relevant aspects of its use as a functional food.

부모의 방임 및 학대와 또래 관계 간의 관계에서 공격성의 매개 효과

유창호(Yu, Chang-Ho),장석진(Chang, Seok-Jin),조용비(Zhao, Long-fei),전지인(Jeon, Ji-In) 학습자중심교과교육학회 2018 학습자중심교과교육연구 Vol.18 No.20

본 연구는 부모의 방임·학대가 청소년들의 또래 관계에 미치는 영향을 확인하고, 부모의 방임·학대와 청소년들의 또래 관계에 대한 공격성의 매개 효과를 검증하고자 하였다. 이를 위해 한국청소년정책연구원에서 제공하는 2017년 ‘한국아동·청소년패널조사(KCYPS)’에 탑재된 6차년도(2015) 데이터를 활용하여 중학교 3학년 학생 2,057명의 자료를 최종 분석하였으며, 2017년 11월부터 연구 방향을 설정하여 자료를 찾고 분석하였다. 매개 효과 검증을 위해 SPSS 다중 회귀분석을 활용하여 분석하였다. 주요 분석 결과는 다음과 같다. 첫째, 부모가 방임 또는 학대와 같은 부정적인 양육 태도를 보일수록 청소년의 공격성은 높고 또래 관계는 나쁜 것으로 나타났으며, 학대보다 방임의 영향력이 더 큰 것으로 나타났다. 둘째, 부모의 방임·학대와 청소년이 경험하는 또래 관계 간의 관계에서 공격성은 매개 효과를 갖는 것으로 나타났다. 이러한 연구 결과를 토대로 부모의 방임·학대와 관련된 부정적 양육 태도에 대한 교육 및 청소년의 또래 관계 개선 및 공격성을 낮추기 위한 개입 방안을 제시하였다. The study aims to find the mediating effects of aggression between parental neglect and abuse and adolescents peer relationships. For this purpose, this paper applied the data of wave 6 of the 2016 Korea Youth Panel Survey (KCYPS) provided by the National Youth Policy Institute to analyze the cases of 2,057 third-grade middle school students, and SPSS multiple regression analysis was adopted in order to verify the mediating effect. The analysis results are mainly as follows. First, the more evident the negative rearing attitudes such as parental neglect or abuse, the more aggressive the adolescents are, and the worse their peer relationships would become. Besides, the impact of parental neglect is greater than that of parental abuse. Second, there are mediating effects of aggression between parental neglect and abuse and the adolescents peer relationships. Such results could be applied to develop appropriate solutions for dealing with negative rearing attitudes such as parental neglect or abuse, improving adolescents peer relationships and reducing their aggression.

Associations Between Three Common MicroRNA Polymorphisms and Hepatocellular Carcinoma Risk in Chinese

Hao, Yu-Xia,Wang, Jun-Ping,Zhao, Long-Feng Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.11

Aim: Associations between polymorphisms in miR-146aG>C, miR-196a2C>T and miR-499A>G and risk of HCC, and interaction with HBV infection in a Chinese population, were the target of the present research. Methods: The duplex polymerase-chain-reaction with confronting-two-pair primers (PCR-RFLP) was performed to determine the genotypes of the miR-146aG>C, miR-196a2C>T and miR-499A>G genotypes. Associations of polymorphisms with the risk of HCC were estimated by conditional logistic regression analysis. Results: Drinking, family history of cancer, HBsAg and HCV were risk factors for HCC. Multivariate regression analyses showed that subjects carrying the miR-196a2 CC genotype had significantly increased risk of HCC, with an adjusted OR (95% CI) of 2.18 (1.23-3.80). In addition, cases carrying the miR-196a2 C allele had a 1.64-fold increase in the risk for HCC (95%CI=1.03-2.49). The miR-196a2 CT and TT genotypes greatly significantly increased the risk of HCC in subjects with HBV infection, with adjusted ORs (95% CI) of 2.02 (1.12-3.68) and 2.69 (1.28-5.71), respectively. Conclusion: Our results demonstrate that miR-196a2 CC genotype and C allele have an important role in HCC risk in Chinese, especially in patients with HBV infection.