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Cheng Wu,Jianfeng Hu,Dan Xie,Endi Fan,Junlin Yang,Xiaolong You,Pingyan Cheng,Wei Huang,Feng Hu,Diqiang Wang 한국식품과학회 2024 Food Science and Biotechnology Vol.33 No.8
Mechanized, automated and intelligent brewing is an important trend of innovation and transition in Jiang-flavor baijiu industry. In this study, physicochemical parameters, microbial community composition and flavor substances during 3rd round heap fermentation between mechanical and traditional workshop were investigated and compared based on traditional culturable methods, high-throughput sequencing technology and gas chromatography analysis. The dominant bacterial and fungal genera were consistent between the two workshops, but mechanized brewing had a significant impact on the composition of fungal communities. Rhodococcus and Monascus were special genera in mechanical workshop. The interaction relationship between physicochemical parameters and dominant microorganisms in mechanized workshop was different from traditional workshop as well. This study provided a scientific basis for further analyzing the mechanism of mechanized brewing of Jiang-flavor baijiu.
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A study on Safe Pork Consumption Behavior in Taiwan
( Cheng-wei Chen ),( Yu-ping Fan ),( Cheng-hsing Yeh ) 한국농업경제학회 2009 KOREAN JOURNAL OF AGRICULTURAL ECONOMICS(KJAT) Vol.50 No.3
Pork is the most popular meat in Taiwan, that makes hog industry an important agriculture industry. The government had lauched the traceability system of agricultural products from 2004. It is needed to appreciate the policy affecting consumers’ willingness to buy safe pork for hog industry to separate market. This research use consumer decision process model and market segmentation to separate four respective factors as age group, educational background, family income, and the population element as family structure to find out the habit of safe pork consumption. This study was based on household as its unit, and had conducted questionnaire survey upon the primary purchasers of pork, which were then analyzed with descriptive statistics, Chi-square test, and the logit model so as to differentiate the preference of demographic characteristics among consumers with various features. This research indicated consumers with more members of household, older, less educated,less income, less cognitive about pork risk would have higher possibility to buy warm pork. Consumers with female, more educated, more income, more cognitive about pork risk would have higher willingness to pork with traceability system.However consumers in Taiwan still prefer buy warm body pork, little perception about pork marketing risk. The government should improve pork safety by more inspecting hog farms, processing factories and markets and educating consumers the knowledge of safe pork by television broadcasting and other mass media.
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A Study on Safe Pork Consumption Behavior in Taiwan
Cheng-Wei Chen,Yu-Ping Fan,Cheng-Hsing Yeh 한국농업경제학회 2009 農業經濟硏究 Vol.50 No.4
Pork is the most popular meat in Taiwan, that makes hog industry an important agriculture industry. The government had lauched the traceability system of agricultural products from 2004. It is needed to appreciate the policy affecting consumers’ willingness to buy safe pork for hog industry to separate market. This research use consumer decision process model and market segmentation to separate four respective factors as age group, educational background, family income, and the population element as family structure to find out the habit of safe pork consumption. This study was based on household as its unit, and had conducted questionnaire survey upon the primary purchasers of pork, which were then analyzed with descriptive statistics, Chi-square test, and the logit model so as to differentiate the preference of demographic characteristics among consumers with various features. This research indicated consumers with more members of household, older, less educated, less income, less cognitive about pork risk would have higher possibility to buy warm pork. Consumers with female, more educated, more income, more cognitive about pork risk would have higher willingness to pork with traceability system.However consumers in Taiwan still prefer buy warm body pork, little perception about pork marketing risk. The government should improve pork safety by more inspecting hog farms, processing factories and markets and educating consumers the knowledge of safe pork by television broadcasting and other mass media.
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Cheng Baixiang,Feng Fan,Shi Fan,Huang Jinmei,Zhang Songbai,Quan Yue,Tu Teng,Liu Yanli,Wang Junjun,Zhao Ying,Zhang Min 한국조직공학과 재생의학회 2022 조직공학과 재생의학 Vol.19 No.4
BACKGROUND: Although newly formed constructs of feasible pressure-preadjusted bone marrow mesenchymal stem cells (BMSCs) and platelet-rich fibrin (PRF) showed biomechanical flexibility and superior capacity for cartilage regeneration, it is still not very clear how BMSCs and seed cells feel mechanical stimuli and convert them into biological signals, and the difference in signal transduction underlying mechanical and chemical cues is also unclear. METHODS: To determine whether mechanical stimulation (hydrostatic pressure) and chemical cues (platelet-rich fibrin, PRF) activate canonical or noncanonical Wnt signaling in BMSCs, BMSCs cocultured with PRF were subjected to hydrostatic pressure loading, and the activation of the Wnt signaling molecules and expression of cartilage-associated proteins and genes were determined by western blotting and polymerase chain reaction (PCR). Inhibitors of canonical or noncanonical Wnt signaling, XVX-939 or L690,330, were adopted to investigate the role of Wnt signaling molecules in mechanically promoted chondrogenic differentiation of BMSCs. RESULTS: Hydrostatic pressure of 120 kPa activated both Wnt/b-catenin signaling and Wnt/Ca2? signaling, with the the maximum promotion effect at 60 min. PRF exerted no synergistic effect on Wnt/b-catenin signaling activation. However, the growth factors released by PRF might reverse the promotion effects of pressure on Wnt/Ca2? signaling. Real-time PCR and Western blotting results showed that pressure could activate the expression of Col-II, Sox9, and aggrecan in BMSCs cocultured with PRF. Blocking experiment found a positive role of Wnt/b-catenin signaling, and a negative role of Wnt/ Ca2? signaling in chondrogenic differentiation of the BMSCs. Mutual inhibition exists between canonical and noncanonical Wnt signaling in BMSCs under pressure. CONCLUSION: Wnt signaling participates in the pressure-promoted chondrogenesis of the BMSCs co-cultured with PRF, with canonical and noncanonical pathways playing distinct roles during the process.
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Cheng Xia,Rui-Tang Guo,Zhen-rui Zhang,Chen-yuan Fan,Yu-zhe Liu,Yu-cheng Lin,Chu-fan Li,Wei-Guo Pan 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.128 No.-
Recently, the photocatalytic CO2 reduction technology is an effective solution to remit the energy crisis. Inorder to improve the photocatalytic performance, Z-scheme W18O49/NiAl-LDH composite catalysts wereprepared by hydrothermal method. Fortunately, the prepared catalysts revealed excellent photocatalyticperformance under the simulated sunlight, and CO and CH4 could be detected in the reduction products. WO/LDH-0.5 catalyst possessed the optimal activity, with CO and CH4 yield of 37.09 and 8.01 lmol g-1h1separately, which were 7.9 and 3.6 times that of NiAl-LDH monomer. In addition, W18O49 endowedW18O49/NiAl-LDH catalysts with photothermal effect, which raised the surface temperature andfacilitated the catalytic reaction. Meanwhile, the Z-scheme heterojunction composed of flower-likeNiAl-LDH and urchin-like W18O49 accelerated the separation of photoexcited carriers and enhanced theredox ability. Through a series of characterizations and investigations, this work is promising to breaknew ground for the design of photocatalysts with photothermal effect.
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Ultimate behavior of long-span steel arch bridges
Cheng, Jin,Jiang, Jian-Jing,Xiao, Ru-Cheng,Xiang, Hai-Fan Techno-Press 2002 Structural Engineering and Mechanics, An Int'l Jou Vol.14 No.3
Because of the increasing span of arch bridges, ultimate capacity analysis recently becomes more focused both on design and construction. This paper investigates the static and ultimate behavior of a long-span steel arch bridge up to failure and evaluates the overall safety of the bridge. The example bridge is a long-span steel arch bridge with a 550 m-long central span under construction in Shanghai, China. This will be the longest central span of any arch bridge in the world. Ultimate behavior of the example bridge is investigated using three methods. Comparisons of the accuracy and reliability of the three methods are given. The effects of material nonlinearity of individual bridge element and distribution pattern of live load and initial lateral deflection of main arch ribs as well as yield stresses of material and changes of temperature on the ultimate load-carrying capacity of the bridge have been studied. The results show that the distribution pattern of live load and yield stresses of material have important effects on bridge behavior. The critical load analyses based on the linear buckling method and geometrically nonlinear buckling method considerably overestimate the load-carrying capacity of the bridge. The ultimate load-carrying capacity analysis and overall safety evaluation of a long-span steel arch bridge should be based on the geometrically and materially nonlinear buckling method. Finally, the in-plane failure mechanism of long-span steel arch bridges is explained by tracing the spread of plastic zones.
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Does H3K27M Mutation Impact Survival Outcome of High-Grade Spinal Cord Astrocytoma?
Fan Zhang,Lei Cheng,Ze Ding,Shengxi Wang,Xingang Zhao,Zijun Zhao,Cong Liang,Kun Wu,Dongao Zhang,Yinqian Wang,Tao Fan 대한척추신경외과학회 2023 Neurospine Vol.20 No.4
Objective: To evaluate the impact of H3K27M mutation in the prognosis of histological high-grade intramedullary astrocytoma. Methods: A total of 78 patients who were diagnosed with high-grade spinal cord astrocytoma were included. Clinical data consisting demographic, radiological, molecular features and treatment data were recorded. Univariate and multivariate Cox analysis were performed to investigate variables associated with survival outcome of histological high-grade spinal cord astrocytoma. Results: Median survival time was 21 months. Overall survival (OS) at 1 and 3 years was 65.7% and 40.7%, respectively. Sex, location, and tumor span did not present significant association with OS. Patients with H3K27M mutation showed significant shorter duration of symptom than patients with H3K27 wild-type. As respect to adjuvant treatment, adjuvant radiotherapy and chemotherapy were associated with favorable OS (both p = 0.01). Younger patients (age ≤ 18 years) had shorter OS (p = 0.008) than adult patients (age > 18 years). Of note, H3K27M mutation did not show significant impact on the survival outcome, regardless of histology grade 3 or grade 4 (p = 0.3). Conclusion: Histological high-grade spinal cord astrocytoma has dismal prognosis. Our study demonstrated that H3K27M mutation did not show significant impact on survival outcome of histological high-grade spinal cord astrocytoma.
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A study on Safe Pork Consumption Behavior in Taiwan
( Cheng-wei Chen ),( Yu-ping Fan ),( Cheng-hsing Yeh ) 한국농업경제학회 2009 농업경제연구 Vol.50 No.3
Pork is the most popular meat in Taiwan, that makes hog industry an important agriculture industry. The government had lauched the traceability system of agricultural products from 2004. It is needed to appreciate the policy affecting consumers’ willingness to buy safe pork for hog industry to separate market. This research use consumer decision process model and market segmentation to separate four respective factors as age group, educational background, family income, and the population element as family structure to find out the habit of safe pork consumption. This study was based on household as its unit, and had conducted questionnaire survey upon the primary purchasers of pork, which were then analyzed with descriptive statistics, Chi-square test, and the logit model so as to differentiate the preference of demographic characteristics among consumers with various features. This research indicated consumers with more members of household, older, less educated,less income, less cognitive about pork risk would have higher possibility to buy warm pork. Consumers with female, more educated, more income, more cognitive about pork risk would have higher willingness to pork with traceability system.However consumers in Taiwan still prefer buy warm body pork, little perception about pork marketing risk. The government should improve pork safety by more inspecting hog farms, processing factories and markets and educating consumers the knowledge of safe pork by television broadcasting and other mass media.
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