http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
An overview of functionalised carbon nanomaterial for organic pollutant removal
Lau Yien Jun,N.M. Mubarak,Min Juey Yee,Lau Sie Yon,Chua Han Bing,Mohammad Khalid,E.C. Abdullah 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.67 No.-
Carbon nanomaterials (CNMs), particularly carbon nanotube and graphene-based materials, are rapidly emerging as one of the most effective adsorbents for wastewater treatment. CNMs hold great potential as new generation adsorbents due to their high surface to volume ratio, as well as extraordinary chemical, mechanical and thermal stabilities. However, implementation of pristine CNMs in real world applications are still hindered due to their poor solubility in most solvents. Hence, surface modification of CNMs is essential for wastewater treatment application in order to improve its solubility, chemical stability, fouling resistance and efficiency. Numerous studies have reported the applications of functionalized CNMs as very promising adsorbents for treating organic and inorganic wastewater pollutants. In this paper, the removal of organic dye and phenol contaminants from wastewater using various type of functionalized CNMs are highlighted and summarized. Challenges and future opportunities for application of these CNMs as adsorbents in sustainable wastewater treatment are also addressed in this paper.
Study on bioaccessibility of betacyanins from red dragon fruit (Hylocereus polyrhizus)
Kah Yee Choo,Yien Yien Ong,Renee Lay Hong Lim,Chin Ping Tan,Chun Wai Ho 한국식품과학회 2019 Food Science and Biotechnology Vol.28 No.4
Betacyanins are bioactive dietary phytochemicalswhich can be found in red dragon fruit (RDF). Therefore, the bioaccessibility of betacyanins that presentin fermented red dragon fruit drink (RDFD) and pressedred dragon fruit juice (RDFJ) was accessed in simulatedgastric and intestinal digestion. Results disclosed thatbetacyanins from RDFD and RDFJ suffered minor loss(\25%) at gastric-like environment but greater loss wasobserved during the intestinal phase digestion. After subjectedto intestinal digestion, RDFD retained 46.42% ofbetanin while RDFJ retained 43.76%, with betanin concentrationof 17.12 mM and 12.37 mM, respectively. Findings also revealed that RDFD exhibited higherantioxidant capacity compared to RDFJ after subjected tointestinal digestion, with values of 0.88 mM Troloxequivalent antioxidant capacity (TEAC) and 0.85 mMTEAC, respectively. The data suggests that betacyaninsthat present in RDF are bioaccessible while fermentationable to enhance the bioavailability with more betacyaninsretained after intestinal digestion.
Studies on the storage stability of fermented red dragon fruit (Hylocereus polyrhizus) drink
Kah Yee Choo,Caryn Kho,Renee Lay Hong Lim,Chun Wai Ho,Yien Yien Ong,Yin Yin Thoo,Chin Ping Tan 한국식품과학회 2018 Food Science and Biotechnology Vol.27 No.5
The objective of this work was to study the effect of storage temperatures and duration on the stability of fermented red dragon fruit drink (FRDFD) on its betacyanins content, physicochemical and microbiological qualities (BPM) and determining sensory acceptability. Results showed that both storage temperatures and duration have a significant effect on betacyanins content and physicochemical properties of FRDFD. Aerobic mesophilic and yeast and mold counts were lower than 1 9 103 CFU/ mL for FRDFD stored at both temperatures. The loss of betanin (16.53–13.93 g/L) at 4 C was 15.73% with no significant changes in physicochemical properties from week two onwards compared to 56.32% (16.53–7.22 g/L) of betanin loss at 25 C. At week eight, FRDFD stored at 4 C still contained 13.93 g/L betanin with a pH value of 3.46, suggested its potential as a functional drink which is sensory acceptable (mean score[80% using hedonic test) among consumers.
Kwang, Ng Beng,Mahayudin, Tasneem,Yien, Hii Ling,Abdul Karim, Abdul Kadir,Teik, Chew Kah,Shan, Lim Pei Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.1
Background: Cervical cancer is the fourth most common cancer among women worldwide. Studies evaluating the effect of health education on knowledge and perception of cervical cancer have generated conflicting results. Thus, this study aimed to evaluate the effect of educational intervention towards knowledge of HPV vacccination for cervical cancer prevention among pre-university students in Malaysia. Materials and Methods: This was an experimental before and after study performed between October 2014 and March 2015. Five hundred and eighty students were randomly assigned into intervention and control groups. All were required to complete both pre-intervention and post-intervention questionnaires. Those in the intervention group were given an information leaflet to read before answering the post-intervention questionnaire. Results: Almost half (48.3%) of the students had poor knowledge, with a score less than 5, and only 51 (8.8%) exhibited good knowledge, with a score of 11 and above. After educational intervention, the number of students with poor knowledge was reduced to 177 (29.3%) and the number of students who exhibited good knowledge increased to 148 (25.5%). Students from the intervention group demonstrated significant higher total scores in knowledge regarding 'HPV infection and cervical cancer' (p=0.000) and 'HPV vaccination and cervical cancer prevention' (p=0.000) during post-intervention as compared to the control group. Conclusions: Knowledge on HPV infection and vaccination is low among pre-university students. Educational intervention in the form of information leaflets appears effective in creating awareness and improving knowledge.
Ye Wang,Haojia Su,Zhengchun Cai,Jia Liu,Yien Yuan,Yongxin Ji 한국섬유공학회 2022 Fibers and polymers Vol.23 No.11
Novel cationic macromolecular emulsifier (PD emulsifier) and anionic macromolecular emulsifier (PA emulsifier)were synthesized with acrylate monomer and E-TPA (self-made molecular weight regulator), which were further used toprepare cationic sizing agent (PD-sizing agent) and anionic sizing agent (PA-sizing agent) respectively. On the other hand, ETPAwas synthesized with epoxy resin and S,S'-bis(α,α'-dimethyl-α''-acetic acid)-trithiocarbonate. Because the performanceof sizing agent and macromolecular emulsifier was affected by E-TPA with epoxy resin, the critical micelle concentration,solubilization and molecular weight of the emulsifier with various E-TPA dosages were studied, while the water resistanceand mechanical properties of sizing paper were further researched. The results indicate that the water resistance andmechanical strength can be enhanced with epoxy resin, under the premise that the particle size of the sizing agent is smallenough. The PD-sizing agent with the PD emulsifier of which the amount of E-TPA is 11.63 wt% shows the best sizingproperties with folding endurance of 19, bursting strength of 211 kPa, tensile strength of 72.77 kN/m and the water absorption(cobb) of 54.23 g/m2. The PA-sizing agent with the PA emulsifier containing 11.63 wt% of E-TPA documents the best sizingproperties with tensile strength of 61.49 kN/m, folding endurance of 14, bursting strength of 185.67 kPa and the cobb of47.88 g/m2.
Benjamin Yong-Qiang Tan,Nicholas Jinghao Ngiam,Zi Yun Chang,Sandra Ming Yien Tan,Xiayan Shen,Shao Feng Mok,Srinivas Subramanian,Shirley Beng Suat Ooi,Adrian Chin-Leong Kee 한국의학교육학회 2019 Korean journal of medical education Vol.31 No.3
Long duty hours have been associated with significant medical errors, adverse events, and physician “burn-out”. An innovative night float (NF) system has been implemented in our internal medicine program to reduce the negative effects of long duty hours associated with conventional full-call systems. However, concerns remain if this would result in inadequate training for interns. We developed a structured questionnaire to assess junior doctors’ perceptions of the NF system compared to full calls, in areas of patient safety, medical training, and well-being. Ninety-seven (71%) of the 137 doctors polled responded. Ninety-one (94%) felt the NF system was superior to the full call system. A strong majority felt NF was beneficial for patient safety compared to full call (94% vs. 2%, p<0.001). The NF system was also perceived to reduce medical errors (94% vs. 2%, p<0.001) and reduce physician “burn-out” (95% vs. 5%, p<0.001). Beyond being a practical solution to duty-hour limitations, there was a significant perceived benefit of the NF system compared to the full call in terms of overall satisfaction, patient safety, reducing medical errors and physician “burn-out”.