Catalytic green energy production based on engineered active water innovatively prepared using sunlight-illuminated gold nanoparticles

Shih-Hao Yu,Fu-Der Mai,Wei-Yu Kao,Hui-Yen Tsai,Yu-Chuan Liu 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.127 No.-

Water is the most common solvent in our daily lives. This solvent has advantages of green environmentalprotection and low cost. Water is conventionally considered to be an inert solvent, yet it is relatively polarand can form a large number of hydrogen bonds (HBs). But this property also inhibits the dissolution ofmany non-polar gases, causing many important electrocatalytic reactions performed in it to have lowefficiencies. In this work, we propose an innovative application of solar energy-generated active purewater (APW) with reduced HBs to enhance chemical reactions and physical procedures. Compared toconventional deionized water (DIW), the generated APW possessed a lower specific heat of ca. 0.96. The swelling degree of artificial skin in APW significantly increased by ca. 29%. Moreover, the densityof an ethanol/APW solution significantly increased by 0.21% due to more free water molecules beingavailable in APW to form stronger HBs with ethanol. Encouragingly, efficiencies of hydrogen evolutionreactions performed in an APW-based acidic solution and oxygen evolution reactions performed in anAPW-based basic solution significantly increased by 42% and 17%, respectively, compared to DIWbasedsolutions. The developed APW based on utilizing solar energy can create a more-effective greenprocess.

RNA sequencing reveals that Prx II gene knockout can down-regulate the allograft rejection of dermal mesenchymal stem cells

Han Ying-Hao,Mao Ying-Ying,Yu Nan-Nan,Jin Mei-Hua,Jin Ying-Hua,Wang Ai-Guo,Zhang Yong-Qing,Shen Gui-Nan,Cui Yu-Dong,Yu Li-Yun,Lee Dong-Seok,Jo Yu-Jin,Sun Hu-Nan,Kwon Jeongwoo,권태호 한국응용생명화학회 2020 Applied Biological Chemistry (Appl Biol Chem) Vol.63 No.3

In this study, we used RNA sequencing (RNA-seq) to analyze and compare bulk cell samples from wild-type (WT) dermal mesenchymal stem cells (DMSCs) (n = 3) and Prx II knockout DMSCs (n = 3). The purpose of the study was to elucidate the role of Prx II on allogeneic immune rejection of transplanted DMSCs. The results revealed differential expression of 472 genes (176 up-regulated and 296 down-regulated; p ≤ 0.05) between the PrxII+/+ (WT) and PrxII−/− sample groups. When highly regulated genes were categorized according to the Gene Ontology (GO) molecular function classification and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, the PrxII−/− samples showed a robust downward trend in allograft rejection. The study identified 43 all immunologically rejected differentially expressed genes, of which 41 showed lower expression in the PrxII−/− vs. PrxII+/+ (WT) samples. These findings suggest that Prx II gene knockout may down-regulate the allograft rejection that occurs during DMSCs transplantation and improve the survival rate of DMSCs in the host. This study provides a new perspective on the clinical treatment of stem cell transplantation.

Low-dose Radiation Induces Antitumor Effects and Erythrocyte System Hormesis

Yu, Hong-Sheng,Liu, Zi-Min,Yu, Xiao-Yun,Song, Ai-Qin,Liu, Ning,Wang, Hao Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.7

Objective: Low dose radiation may stimulate the growth and development of animals, increase life span, enhance fertility, and downgrade the incidence of tumor occurrence.The aim of this study was to investigate the antitumor effect and hormesis in an erythrocyte system induced by low-dose radiation. Methods: Kunming strain male mice were subcutaneously implanted with S180 sarcoma cells in the right inguen as an experimental in situ animal model. Six hours before implantation, the mice were given 75mGy whole body X-ray radiation. Tumor growth was observed 5 days later, and the tumor volume was calculated every other day. Fifteen days later, all mice were killed to measure the tumor weight, and to observe necrotic areas and tumor-infiltration-lymphoreticular cells (TILs). At the same time, erythrocyte immune function and the level of 2,3-diphosphoglyceric acid (2,3-DPG) were determined. Immunohistochemical staining was used to detect the expression of EPO and VEGFR of tumor tissues. Results: The mice pre-exposed to low dose radiation had a lower tumor formation rate than those without low dose radiation (P < 0.05). The tumor growth slowed down significantly in mice pre-exposed to low dose radiation; the average tumor weight in mice pre-exposed to low dose radiation was lighter too (P < 0.05). The tumor necrosis areas were larger and TILs were more in the radiation group than those of the group without radiation. The erythrocyte immune function, the level of 2,3-DPG in the low dose radiation group were higher than those of the group without radiation (P < 0.05). After irradiation the expression of EPO of tumor tissues in LDR group decreased with time. LDR-24h, LDR-48h and LDR-72h groups were all statistically significantly different from sham-irradiation group. The expression of VEGFR also decreased, and LDR-24h group was the lowest (P < 0.05). Conclusion: Low dose radiation could markedly increase the anti-tumor ability of the organism and improve the erythrocyte immune function and the ability of carrying $O_2$. Low-dose total body irradiation, within a certain period of time, can decrease the expression of hypoxia factor EPO and VEGFR, which may improve the situation of tumor hypoxia and radiosensitivity of tumor itself.

Computed tomographic analysis of maxillary sinus anatomy relevant to sinus lift procedures in edentulous ridges in Taiwanese patients

Yu, Shun-Jen,Lee, Yi-Hao,Lin, Ching-Ping,Wu, Aaron Yu-Jen Korean Academy of Periodontology 2019 Journal of Periodontal & Implant Science Vol.49 No.4

Purpose: To analyze the maxillary sinus anatomy over edentulous ridges in the bilateral posterior maxillary area in Taiwanese patients using cone-beam computed tomography (CBCT). Methods: In total, 101 anatomical sites from 61 patients, including 32 premolar and 69 molar regions, were analyzed using CBCT. Measurements were made of the width and height of edentulous ridges, the thickness of the lateral wall of the maxillary sinus, and the presence of a sinus septum and the posterior superior alveolar artery (PSAA). A statistical analysis of the measurements was performed, and correlations among the measurements were assessed. Results: The average ridge width was $10.26{\pm}3.16mm$, with a significantly greater ridge width in the second molar region than in the premolar region. The mean residual ridge height was $8.55{\pm}4.09mm$, and ridge height showed an opposite trend from ridge width for the premolar and molar regions. A sinus septum was present at 5.9% of the sites, and the PSAA was observed in 24.5%. The average thickness of the lateral wall of the maxillary sinus was $2.08{\pm}0.94mm$, with no significant difference between the tooth position and lateral wall thickness. Conclusions: This study presents the anatomical features of the maxillary sinus, which should be considered in sinus lift procedures for implant placement, in the Taiwanese population. The use of CBCT is recommended to avoid intraoperative complications.

An Encryption Method for QR Code Image Based on ECA

Yu Xiaoyang,Song Yang,Yu Yang,Yu Shuchun,Cheng Hao,Guan Yanxia 보안공학연구지원센터 2013 International Journal of Security and Its Applicat Vol.7 No.5

Evaluation of Emergency Management Capability in Chinese College Based on CMM Model

Hao Yu 위기관리 이론과 실천 2015 Journal of Safety and Crisis Management Vol.5 No.2

Emergencies occur in colleges from time to time in recent years, which disturbs teaching and campus life seriously and causes pressure to students and teachers’ mind and hurt of their life. With emergencies happening frequently, it is the need of social development and also the need of maintaining the development and stability of higher education to constantly improve emergency management capability and to prevent and deal with the emergencies scientifically and efficiently. Emergency management capability decides the response level of a university when they emergencies happen. The improvement of the capacity is a process step by step with many stages for different stage requires different capability. This paper constructs the maturity model and evaluation index system of emergency management capability according to CMM and examines it with real data of a university in Henan Province. Result shows that the level of emergency management capability of the university is initial. Correspond with the university’s situation, the result is accurate and reliable and is able to provide reference for finding questions in the process of emergency management, reducing the risk of emergency and improving emergency management capability.

Studies on China s Emergency Management Evaluation Based on Meta-analysis Method : Review and Prospect

Hao Yu 위기관리 이론과 실천 2015 Journal of Safety and Crisis Management Vol.5 No.2

Emergency assessment is an important field of the current emergency management research. Foreign related research started earlier and progress rapidly, has a wealth of practical experience, the domestic research is in the stage of exploration. This paper will be introduced to the Meta - analysis method for evaluation of emergency management research, from the perspective of the overall comprehensive analysis of emergency management evaluation and the research itself, the emergency management at home and abroad in the evaluation of excavated in a large number of research literature in the field of general trends and characteristics, by summing up experience and the existing research results, the theoretical research and practice of emergency management evaluation by weak links that exist in the analysis, in order to find the deficiencies in the study of emergency management assessment, for the future development strategy and establish and improve the basis for policy.

The Impact of Perceived Value on Tourism Satisfaction in Leisure Districts: Focusing on Female Tourists

Yu Mei Hao,김영길 한국무역연구원 2020 무역연구 Vol.16 No.4

Purpose The leisure district is a new type of tourism that is rapidly rising in the mass tourism era, and it is gradually favored by tourists, so its tourist satisfaction is also valued accordingly. According to the American Customer Satisfaction Index, Perceived Value is a vital antecedent variable for customer satisfaction, which is also an indispensable part of the research on customer satisfaction. With the development of the times, the status of female tourists in tourism activities has gradually improved, and most women have become the leaders of travel decisions. Therefore, it is essential to understand the measurement standards of female tourists’ perceived value and satisfaction with tourist destinations. Design/Methodology/Approach In this context, this paper takes Jinan tourism and leisure shopping districts as an example, based on customer satisfaction theory, constructs a tourist satisfaction model of leisure districts, and conduct analysis by adopting SPSS software and structural equation model (AMOS) for empirical research. Findings The article explores the impact of perceived value on the satisfaction of leisure districts from the perspective of female tourists, and examines the interaction between variables in the model. The results show that for female tourists visiting Jinan tourism and leisure shopping districts, perceived value has a significant direct impact on tourist satisfaction. Moreover, tourist expectations and perceived quality have a significant direct effect on tourist satisfaction. Research Implications In this context, this article creatively chooses to explore the impact of perceived value on the satisfaction of leisure districts from the perspective of female tourists and conducts case analysis with Jinan leisure districts as the research object to find that the interactive relationship between perceived value and tourist satisfaction so as to understand the current situation of female tourist satisfaction with Jinan leisure districts and clarify the key factors affecting female tourist satisfaction.

Analysis of Dangerous Chemical Accident Cause Based on Apriori Algorithm

Hao Yu 위기관리 이론과 실천 2016 Journal of Safety and Crisis Management Vol.6 No.1

In order to identify the association between causes of accidents due to hazardous chemicals, clear and definite the key points of safety supervision, and improve the efficiency of security supervision, this study researches 150 accident investigation report as data source by data mining technology, A priori algorithm, and finds out the relationship between factors such as time, step, type, severity and cause. By analyzing the 8 valuable rules, it proposes 4 suggestions for improving key safety supervision, thus to promote the optimization of safety supervision strategy of hazardous chemicals.

IoT-base Generic Intelligent Wireless Sensing Platform for Real-time Data Collection and Distribution Data Analysis

( Yu-cheng Yang ),( Kai-sheng Tseng ),( Xiang-yu Huang ),( Sheng-hao Chen ),( Joe-air Jiang ) 한국농업기계학회 2018 한국농업기계학회 학술발표논문집 Vol.23 No.1

In this study, a generic intelligent wireless sensing platform with the IoT and wireless transmission technology is established for greenhouse monitoring, which is capable of greenhouse data collection and analysis. The data analyzed by a cloud server would provide important information regarding the efficiency of greenhouse management and cultivation methods. To monitor greenhouse related parameters, an embedded board is placed in a greenhouse as the gateway. Monitoring data and images collected by sensors deployed in the greenhouse are transmitted to the embedded board via an Ethernet or wireless transmission module. The data are eventually sent to a database by wireless AP. The AP connects to the internet by using a 4G USB dongle, which can provide sufficient data transmission speed for real-time data transmission. In wireless hotspots and areas with Wi-Fi, not only can images be transmitted to the cloud, but also can the mobile APP be used to perform remote monitoring, so experimental observations are no longer affected by geographical impacts. Moreover, to ensure the preservation of images and numeric data, the gateway carries a high durability secure digital (SD) memory card to store images and data; if the network encounters some problems, such as unable to connect and a lack of network traffic, the data can be stored in the SD card. Thus, the proposed platform is able to perform heavy information transmission duties and support performing all wireless monitoring tasks. In addition, the analyzed data can be used by agricultural personnel to provide critical cultivation suggestions.