Temperature-Dependent Solubilization of PEO-PPO-PEO Block Copolymers and Their Application for Extraction Trace Organics from Aqueous Solutions

Su, Yan-lei,Liu, Hui-zhou 한국화학공학회 2003 Korean Journal of Chemical Engineering Vol.20 No.2

The effect of temperature on naphthalene solubilization in aqueous PEO-PPO-PEO block copolymer solutions has been investigated. Increasing temperature would enhance the apparent solubility of naphthalene in aqueous PEO-PPO_PEO block copolymer solutions. The pseudo-phase model was employed to calculate thermodynamic parameters for naphthalene solubilization in aqueous PEO-PPO_PEO block copolymer solutions.

EXPERIMENTAL STUDY OF PARTICULATE EMISSION CHARACTERISTICS FROM A GASOLINE DIRECT INJECTION ENGINE DURING STARTING PROCESS

Yan Su,Fangxi Xie,Wei Hong,Xiaoping Li,Tingting Hu 한국자동차공학회 2019 International journal of automotive technology Vol.20 No.2

The engine starting process presents high particulate emissions in exhaust. This study gives a systematic investigation on particulate emission characteristics, including particulate matter (PM) mass, soluble organic fraction (SOF) mass, C10-C26 n-Alkanes and particle-bound polycyclic aromatic hydrocarbons (PAHs), that have been emitted from a gasoline direct injection (GDI) engine measured by Gas chromatography–mass spectrometry during starting period. The results show that particulate emissions under the warm coolant start condition decline dramatically compared with the cold start condition. 90 % of particulate number (PN) emitted during the cold and warm start periods generally are nucleation-mode particles. Over 50 % PM mass and PAHs emissions are emitted in the first 0−13 s stage. SOF mass accounts more than 60 % in PM mass emissions, especially under the warm coolant start condition. Some C23-C26 n-Alkanes are detected under the cold start condition which demonstrates that partial particulate composition directly comes from lubricant. The concentration of the two ring PAHs is the lowest among PAHs while the four to six ring PAHs are higher under the cold start operation. The toxicity of PAHs which is evaluated by Benzo(a)pyrene equivalent toxicity (BEQ) value of the total PAHs emissions shows a decline of 66.83 % under the warm start condition.

Ideal Topographic Simulations for Null Measurement Data

Yan-Jen Su,Chi-Hong Tung,Leh-Rong Chang,Jin-Liang Chen,Calvin Chang 한국정밀공학회 2008 International Journal of Precision Engineering and Vol.9 No.4

A method is described for ideally reconstructing the profile from a surface profiling measurement containing a reasonable amount of null measurement data. The proposed method can conjecture lost information and rectify irregular data that result due to bad measuring environments. signal transmission noise. or instrument-induced errors. The method adopts the concept 0/ computer graphics and consists of several processing steps. First, a search for valid data in the neighborhood of the null data is performed. The valid data are then grouped and their contours are extracted. By analyzing these contours, a bounding box can be obtained and the general distribution of the entire area encompassing the valid and null data is determined. Finally, em ideal surface model is overlaid onto the measurement results based on the bounding box, generating a complete reconstruction of the calculations. A surface-profiling task on a liquid crystal display photo spacer is used to verify the proposed method. The results are compared to those obtained through the use of a scanning electron microscope to demonstrate the accuracy of the proposed method.

Changes of Photosynthesis and Chlorophyll Fluorescence under High Temperature Stress in Cowpea seedling leaves

Yan-Su Li,Xianchang Yu,Yu?Mei Liu 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-

Ideal Topographic Simulations for Null Measurement Data

Su, Yan-Jen,Tung, Chi-Hong,Chang, Leh-Rong,Chen, Jin-Liang,Chang, Calvin Korean Society for Precision Engineering 2008 International Journal of Precision Engineering and Vol.9 No.4

A method is described for ideally reconstructing the profile from a surface profiling measurement containing a reasonable amount of null measurement data. The proposed method can conjecture lost information and rectify irregular data that result due to bad measuring environments, signal transmission noise, or instrument-induced errors, The method adopts the concept of computer graphics and consists of several processing steps. First, a search for valid data in the neighborhood of the null data is performed. The valid data are then grouped and their contours are extracted. By analyzing these contours, a bounding box can be obtained and the general distribution of the entire area encompassing the valid and null data is determined Finally, an ideal surface model is overlaid onto the measurement results based on the bounding box, generating a complete reconstruction of the calculations, A surface-profiling task on a liquid crystal display photo spacer is used to verify the proposed method. The results are compared to those obtained through the use of a scanning electron microscope to demonstrate the accuracy of the proposed method.

The Contemporary Value of Xunzi`s Political Ethics Thought for the Social Administration

( Yan Jun Dai ) , ( Lin Su ) 한국윤리학회 2014 倫理硏究 Vol.95 No.1

Xunzi`s political ethical thought, including gentleman personality, people-oriented, prospering etiquettes and respecting law and so on, still has a relational meaning for the modern social political moral construction. Gentleman personality comes with an obligation to improve the leading officials` morality; the idea of people-oriented has a vital significance for establishing“ put people first“ thought throughout society and insisting the mass line; This statecraft that focuses both on ritual and law has a very important revelation for improving the foundation for anti-corruption and a clean government. Xunzi`s political ethical thought provides the value for our country`s conducting a harmonious and efficient social administration through the three dimensions mentioned above.

Sensory involvement in the SOD1-G93A mouse model of amyotrophic lateral sclerosis

Yan-Su Guo,Dong-Xia Wu,Hong-Ran Wu,Shu-Yu Wu,Cheng Yang,Bin Li,Hui Bu,Yue-sheng Zhang,Chun-Yan Li 생화학분자생물학회 2009 Experimental and molecular medicine Vol.41 No.3

A subset of patients of amyotrophic lateral sclerosis (ALS) present with mutation of Cu/Zn superoxide dismutase 1 (SOD1), and such mutants caused an ALSlike disorder when expressed in rodents. These findings implicated SOD1 in ALS pathogenesis and made the transgenic animals a widely used ALS model. However, previous studies of these animals have focused largely on motor neuron damage. We report herein that the spinal cords of mice expressing a human SOD1 mutant (hSOD1-G93A), besides showing typical destruction of motor neurons and axons, exhibit significant damage in the sensory system, including Wallerian-like degeneration in axons of dorsal root and dorsal funiculus, and mitochondrial damage in dorsal root ganglia neurons. Thus, hSOD1-G93A mutation causes both motor and sensory neuropathies, and as such the disease developed in the transgenic mice very closely resembles human ALS. A subset of patients of amyotrophic lateral sclerosis (ALS) present with mutation of Cu/Zn superoxide dismutase 1 (SOD1), and such mutants caused an ALSlike disorder when expressed in rodents. These findings implicated SOD1 in ALS pathogenesis and made the transgenic animals a widely used ALS model. However, previous studies of these animals have focused largely on motor neuron damage. We report herein that the spinal cords of mice expressing a human SOD1 mutant (hSOD1-G93A), besides showing typical destruction of motor neurons and axons, exhibit significant damage in the sensory system, including Wallerian-like degeneration in axons of dorsal root and dorsal funiculus, and mitochondrial damage in dorsal root ganglia neurons. Thus, hSOD1-G93A mutation causes both motor and sensory neuropathies, and as such the disease developed in the transgenic mice very closely resembles human ALS.

Polymorphisms of TERT and CLPTM1L and the Risk of Hepatocellular Carcinoma in Chinese Males

Su, Ling-Yan,Li, Xue-Lian,Shen, Li,Zhang, Yue,Zhao, Meng-Meng,Yin, Zhi-Hua,Su, Hong-Ying,Zhou, Bao-Sen Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.19

Background: Telomerase reverse transcriptase (TERT) and cleft lip and palate trans-membrane 1 like (CLPTM1L) genes located on chromosome 5p15.33 are known to influence the susceptibility to various cancers. Here, we examined the association of TERT and CLPTM1L single nucleotide polymorphisms (SNPs) with hepatocellular carcinoma (HCC). Materials and Methods: Genotyping of TERT SNP rs2736098 and CLPTM1L SNP rs401681 was performed using TaqMan allelic discrimination assays in a case-control study of 201 HCC cases and 210 controls in a Chinese male population. Odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using logistic regression analyses. Results: Both the rs2736098 T allele of TERT and the rs401681 T allele of CLPTM1L were associated with a significantly increased risk of HCC (adjusted odds ratio [OR]=1.605, 95% confidence interval [CI]=1.164-2.213; adjusted OR=1.399, 95%CI=1.002-1.955, respectively). Individuals carrying both TERT and CLPTM1L risk genotypes had an even higher risk of HCC (adjusted OR=4.420, 95%CI= 2.319-8.425). The TERT rs2736098 T allele was also significantly associated with the level of the HCC clinical indicator alpha-fetoprotein (P=0.026). Conclusions: Our results show that genetic variants of TERT and CLPTM1L may contribute to HCC susceptibility in Chinese males.

Les idees et la traduction

( Su Wei Yan ) 한국통역번역학회 2005 FORUM Vol.3 No.1

Languages such as Chinese and French are so different from one another as regard to linguistic structure that the translation can never be done from a purely linguistic dimension. In such context, what should the starting point be for a translator doing his work? In other words, what`s the target of a translating operation? It is nothing but the idea, which results from understanding and cognitive interpretation of original expression. Every translation means persona interpretation of translator. The idea, to a certain extent, emerged from understanding in non-verbal form. The same idea not only gave birth to author`s expression but also generates the expression by which the translator reformulates, in his turn, what he understood in the original text.

중국인 어머니의 한국 어린이집 이용 경험 및 요구에 대한 질적 연구

수옌(Su Yan),이연우(Lee, Youn-Woo) 동북아시아문화학회 2020 동북아 문화연구 Vol.1 No.64

In an unfamiliar cultural environment, parents in multicultural families have many difficulties in raising children and they depend on educating their children to daycare center. Through this research, Chinese mothers who raise children in South Korea were interviewed about their experiences in using daycare center to understand their current situation and to support requirements. Based on the results, this study will provide basic information for effective education of young children from Chinese multicultural families in South Korea. For the purpose, five Chinese mothers were participated in the interview. The interview was conducted in Chinese and then translated in Korean. By using the method of continuous comparison, the collected data were encoded and classified. Through the process, two themes and seven sub-themes were drawn. Results of this study are as follows. First, Chinese mothers considered the following factors in the process of choosing daycare center: the quality of teaching, the cost, the distance from home and the center environment. Chinese mothers mentioned that, by sending their children to daycare center, their burden of child care was reduced and their children showed positive changes. However, Chinese mothers were uncomfortable in high rate of teachers’ turnover and a limited space of daycare center. Also, they mentioned about the differences between Korean and Chinese daycare center in terms of preschool curriculum and cost. Second, Chinese mothers wanted the daycare center to teach bilingual language and knowledge for school readiness to be well prepared for primary school. In addition, Chinese mothers requested daycare center to provide flexible opening and closing time by considering parent’s work and rest time. Also, they asked for the effective parent education to empower the parent role. Based on the results, implications were suggested to provide educational support for young children from Chinese multicultural families and to support child rearing and adaptation in different environment for their parents.