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分析比較本校、鄰近及競爭學校使用招生方式對上游生源造成就讀意願策略之優缺
https://ir.cnu.edu.tw/handle/310902800/34711
title: 分析比較本校、鄰近及競爭學校使用招生方式對上游生源造成就讀意願策略之優缺 abstract: 為了瞭解嘉南藥理大學學生選擇就讀的因素,並以此強化學生對校方之期待,以作為校方提升軟硬體之依據。本研究透過五等份等級評分問卷設計,搜集111年入學學生入學基本資料、就讀嘉南藥理大學(後簡稱:嘉藥)及其它學校的「升學就讀排序」、「選擇原因」及「嘉藥應加強工作」等面像議題進行判別分析(Discriminant Analysis)及典型相關分析(Canonical Correlation Analysis),以瞭解了解學生就學原因及其希望可加強就讀意願的因子比較。分析結果顯示,學生認為「對該系有興趣」、「可考取職業證照」、「未來就業出路」、「該系師資專業」、「系課程特色」及「成績落點」為選擇學校原因評分較高之項目。經由判別分析後得知學生選擇學校順位為第一順位及第二順位時為「學校環境與設備」、「學校名聲」、「高中老師推薦」、「獎學金吸引我」、「系課程特色」、「該系師資專業」、「多元評量採計數量」及「入學資料準備便利」為選擇學校重要之項目。若以其它友校相比學生選擇學校以,「獎學金吸引我」、「學校環境與設備」、「高中老師推薦」為第一判斷因子;「對該系有興趣」、「成績落點」、「可考取職業證照」及「未來就業出路」為判斷就度的第二因素。然而,嘉藥在學生選擇「獎學金吸引我」、「學校環境與設備」、「高中老師推薦」等項目均弱於南台科技大學、崑山科技大學、中華醫科技大學及臺南應用大科技大學等友校為應注意的要點。典型相關分析結果顯示,就讀嘉藥大一學生認為「加強學校宣傳」、「加強畢業出路」、「加強師資專業」有助於提升「學校名聲」及學生的就讀意願。建議,強化高中職深耕(提升「高中老師推薦」、「學校名聲、「系課程特色」)及獎學金為重要的努力方向。此外,加強校內參訪、提升學校宣傳(名聲、特色、環境設備)及畢業出路(企業聯結)也有助提升學生就學意願。
<br>Construction and characterization of an engineered recombinant Rhodopseudomonas palustris to remove Cd2+, Zn2+ and Cu2+
https://ir.cnu.edu.tw/handle/310902800/34622
title: Construction and characterization of an engineered recombinant Rhodopseudomonas palustris to remove Cd2+, Zn2+ and Cu2+ abstract: In this study, we used a photosynthetic bacteria as a host to construct a novel engineered bacterium Rhodop-seudomonas palustris expressed with the metallothionein (MT) from the freshwater crab (Sinopotamon honanense), and to investigate its removal and biosorption capacity for Cd, Zn and Cu in medium and the possible mechanism (s). The results showed that: (i) the MT expressed recombinant was constructed successfully; (ii) the order of heavy metal sensitivity of the recombinant was Cd > Cu > Zn, and the maximum biosorption capacities calculated by Langmuir model were 224.22, 233.64 and 99.8 mg/g, respectively. Compared to the wild-type, the recombinant has doubled biosorption capacity to Cd and Cu with higher sorption rates and was less influenced by different culturing factors (time, metal concentration and pH), which allowed it rapid removal of 92.1% of 25 mg/L Cd within 30 mins; (iii) the recombinant exhibited more diverse biosorption patterns, and the proportion of its intracellular uptake was significantly (P < 0.05) increased 10% under different conditions; (iv) the functional groups on the cell membrane of the recombinant involved in the metal biosorption were more selective, and the synthesis of metal nanoparticles might be reused as optoelectronic materials for recycling. Based on the findings, we concluded that under various culturing conditions, the recombinant can remove the metals examined more successfully and efficiently. Therefore, as a novel strain, the recombinant has great potential for application in the removal and recovery of metals from wastewater or other polluted water sources.
<br>Synthesis and catalytic utilization of bimetallic systems for wastewater remediation: A review
https://ir.cnu.edu.tw/handle/310902800/34519
title: Synthesis and catalytic utilization of bimetallic systems for wastewater remediation: A review abstract: The environment is affected by agricultural, domestic, and industrial activities that lead to drastic problems such as global warming and wastewater generation. Wastewater pollution is of public concern, making the treatment of persistent pollutants in water and wastewater highly imperative. Several conventional treatment technologies (physicochemical processes, biological degradation, and oxidative processes) have been applied to water and wastewater remediation, but each has numerous limitations. To address this issue, treatment using bimetallic systems has been extensively studied. This study reviews existing research on various synthesis methods for the preparation of bimetallic catalysts and their catalytic application to the treatment of organic (dyes, phenol and its derivatives, and chlorinated organic compounds) and inorganic pollutants (nitrate and hexavalent chromium) from water and wastewater. The reaction mechanisms, removal efficiencies, operating conditions, and research progress are also presented. The results reveal that Fe-based bimetallic catalysts are one of the most efficient heterogeneous catalysts for the treatment of organic and inorganic contamination. Furthermore, the roles and performances of bimetallic catalysts in the removal of these environmental contaminants are different. (C) 2020 Elsevier Ltd. All rights reserved.
<br>Fluoride-containing water: A global perspective and a pursuit to sustainable water defluoridation management -An overview
https://ir.cnu.edu.tw/handle/310902800/34492
title: Fluoride-containing water: A global perspective and a pursuit to sustainable water defluoridation management -An overview abstract: High levels of fluoride, though, naturally occurring (which can reach as high as 2,800 mg F-/L) in the environment can be toxic to various living organisms. Moreover, it can be transported by water and by its confluences and exacerbated by anthropogenic activities making it an environmental and public health concern. World Health Organization has set the standard for drinking water at 1.5 mg F-/L while the average national effluent standard is 15 mg F-/L. Hence, different defluoridation techniques of aqueous solutions were developed in the past years. This study provides an overview of the popular methods in defluoridation (i.e. adsorption, ion-exchangers, precipitation, membrane, electrocoagulation, and electrodialysis). The mechanisms, critical operational conditions, and research progress are presented. The results further reveal that adsorption, regarded as the primary technique for defluoridation, still needs further development and mostly on its bench-scale and is only proven effective at low initial concentrations. In this study, sorption techniques are also estimated to be 10 to 20 times more expensive in operational costs relative to the other treatments. Furthermore, the majority of the examined literature demonstrated defluoridation at limited initial concentration <100 mg F-/L. In contrast, industrial effluents may reach 250-1,000 mg F-/L (up to similar to 10,000 mg F-/Lat extreme cases). Inadequate removal of fluoride in water by single treatment also compels researchers to explore hybrid treatments. In addition, due to the lack of wastewater treatment facilities requiring high capital cost, bioremediation, a commonly overlooked alternative, is presented for temporarily alleviating fluoride levels. Finally, challenges such as limited literature for disposal of secondary pollution and cost evaluation along with other potential research perspectives are further discussed. (C) 2020 Elsevier Ltd. All rights reserved.
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