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四等獎

磁星短x射線爆發特徵分析:以1E2259+586為例

我們是探討磁星的短X射線爆發(Short X-ray burst)。利用RXTE太空望遠鏡觀測磁星1E2259+586的數據,經由Bayesian block方法對光變曲線篩選找出爆發,並配合「波松分佈」與「虛無假設」找出50筆爆發事件(爆發的正確性有5σ的信心水準)。再利用HDBSCAN非監督式學習演算法來對短X射線爆發進行分群,找出此磁星有「短暫且高能爆發、中等持續與能量爆發、較長持續且溫和爆發、快速且低能爆發」現象,暗示了磁星爆發的多樣性並有不同的爆發機制。此外我們也發現磁星可能有「週期性」的現象,也許是自轉週期、地殼受的應力或磁場變化經過同樣時間累積(有週期性)而爆發。我們也比對有快速電波爆發 (Fast radio burst, FRB)的磁星SGR 1935+2154,看是否1E2259+586有FRB現象,結果暗示1E2259+586可能沒有FRB現象。

Utilizing Flavonoids From the Invasive Species Pilea Melastomoides and Daucus Carota as Well as the Protein PTK-2 to Create a Skin Gel Aimed for Burn Wound Healing.

Burns are a major global health concern especially in developing countries like 印尼, where southeast asian women experience the highest burn incidents globally. Burns can cause severe physical and psychological impacts, with treatments that are critical to reduce complications. This study focuses on the development of organic, cost-effective burn gels using flavonoid compounds which are Quercetin and Myrecetin which are taken from pilea melastomoides leaves, a wild 印尼n plant and carrot (Daucus Carota). These skin extracts aim to accelerate wound healing, minimize pain and prevent infection. The gel formation involves extracting active compounds using 96% ethanol as it has been effectively used for extracting a wide range of bioactive compounds to preserve their quality by preventing microbial contamination, and ensures a high yield of active ingredients suitable for topical applications. Then it goes through a process of Phytochemical screening to confirm the presence of flavonoids by using the Shinoda test. The formulation process included dissolving the HPC-m (Hydroxypropyl Cellulose) as a gelling agent, then adding plant extracts (pilea melastomoides leaves and carrot), as well as combining other ingredients such as propylene glycol, sodium benzoate, sodium metabisulfite, and disodium EDTA. The gel was stirred thoroughly to ensure uniformity and left at room temperature for 48 hours to attain the required consistency. The gel that was formatted went under various quality assessments, first being organoleptic testing. This test is used to evaluate its physical characteristics which includes color aroma, and consistency which confirms a stable dark green appearance and a natural strong scent from the plant extracts. The homogeneity test is used to verify the uniformity distribution of active compounds across the gel, to ensure a consistent efficacy. The pH test showed the gel’s acidity level which remained the safe range for skin application. Additionally, the spreading ability test demonstrated the gel’s excellent application properties, with consistent results across trials. Subsequently, the in silico analysis was conducted to predict the behaviour of specific flavonoid compounds used which is the myricetin and quercetin, highlighting their potential anti-inflammatory and antimicrobial activities. Further bacterial contamination tests confirmed the gel’s antimicrobial efficacy, reducing the risk of infection in wounds. This study demonstrates that the gel, formulated with pilea melastomoides leaves and carrot skin extracts, effectively utilizes flavonoids and other phytochemicals to reduce inflammation, promote tissue regeneration and retain moisture, which fosters an optimal condition for wound healing. This organic and sustainable burn treatment utilizes locally sourced ingredients, providing a natural solution that speeds up recovery, reduces pain and prevents infections. The results highlight its significant potential for wider healthcare use, especially in resource-limited environments.

腔體共振與開孔氣流的探討

本研究探討聲音共振引起腔體開口處氣流噴出的現象。實驗通過揚聲器播放聲音,使固定的錐形瓶產生共振,並改變聲音頻率、聲音強度及腔體參數(體積、瓶口截面積、瓶頸長度)分析氣流的形成原理與機制。腔體非共振情況下,腔體內外氣壓的振幅差較小,且存在相位差,此時開口處並未測得氣流;而在共振時,腔體內氣壓振幅顯著增加,導致開口處出現氣流且流速達到峰值。而流速峰值頻率與腔體幾何參數的關係符合修正後的亥姆霍茲共振公式,其中瓶頸有效長度應為L+1.45D。此外,氣流形態受衝程比L/D影響,當衝程比小於0.1時,氣體噴出後容易被重新吸回腔體,無法形成噴流;而衝程比大於0.4時,噴出氣流形成穩定的不連續渦流環,即合成噴流;在0.1至0.4之間時,氣流形態處於過渡狀態。本研究為聲能轉動能方面提供新的研究途徑,並有進階研究的可能性。

Utilization of Coffee Protein and its Antimicrobial and Antioxidant Properties for Biodegradable Active Packaging Membranes

隨著全球咖啡市場擴大,永續的咖啡生產成為必須探討的議題。咖啡生產過程中會產生大量富含蛋白質與抑菌成分的副產物和廢棄物,有潛力可做為膠膜和塗層的原料。本研究從生咖啡豆中萃取出粗蛋白質,將其與海藻酸鈉混合烘乾成膠膜,再進行抑菌與水果保鮮和水蒸氣阻隔測試。 由結果得知:咖啡豆蛋白膠膜液對大腸桿菌有抑制生長的效果。沒封膜的蘋果切片失水率 12.72%,有膠膜封口的失水率在 6.84%~8.47%,比沒封膜的失水率降低 46.5%~33.1%,顯示膠膜保水性佳,可提高保鮮效果。微波加熱試驗沒封膜的水蒸氣散失率為 2.45%,膠膜試驗組中最 低為 0.15%,比沒封膜的散失率降低 93%,顯示具有良好的水蒸氣阻隔性。 本研究結果顯示咖啡豆蛋白質膠膜有抑制大腸桿菌生長的效果和良好的氣體阻隔性,可作為可生物降解的食品包裝材料,以替代傳統保鮮膜,有助於減少環境污染。

三角形與四邊形內最短探測路徑研究

這份報告延伸上一份作品,要探討三角形中,假設以其中一頂點為起點, 欲利用一半徑為 r 的探測器,完整掃描三角形中每個邊以及邊上的每個點,最後再回到起點,試找出該路徑之最小值,以及該路徑與三角形之間的關係。在這份報告中,我們新增了在任意三角形中最短路徑的證明。 性質一,證明 D、E 兩點的存在性及唯一性。性質二,證明當四點共線時,會有最小值的發生。性質三,證明從直角或鈍角頂點出發的路徑為最小 值。性質四,證明從較小銳角頂點出發的最短路徑大於從直角或鈍角出發的最短路徑。性質六,證明任意三角形中最短路徑皆由最大角出發。 最後,我們將此問題延伸到四邊形,猜測從最大角頂點出發並回到起點的路徑為最小值,雖然我們發現了反例,但同時也證明了當最大角與第二大角差距夠大時,此猜測仍是正確的。

攜帶型高效率氫能離子能雙輸出埠電力裝置 Dual-ports high hydrogen and ionic conversion efficient power generator

本研究以空氣為催化劑,降低KOH在水中解離成K+及OH- 的解離能,大幅提升KOH在水中解離的效率,配合以鋁板為電極,還原H2O及OH-,釋出氫氣H2。這還原反應過程同時輸出K+及H2為電力能源。利用解離出的K+組裝成鉀離子電池,同時以解離出的氫氣運作燃料電池,組成雙輸出埠電力裝置。本雙輸出埠電力裝置,可以分別利用KOH濃度及或空氣輸入量,來調控輸出功率。KOH濃度增加或空氣輸入量增加,均可提高兩輸出埠的功率。測試時採用KOH濃度為5M,輸出電壓達0.19 mV,電流達0.166 mA。採用摻雜0.3%鉍的鋁為電極板,提升輸出電壓達0.67 mV,電流達0.199 mA。在鉀離子電池2MKOH水溶液中串聯4組電極板,電壓提升至2.9 V,電流達5A,並能成功點亮LED燈及驅動市售燃料電池。再經電路板穩壓後,電壓從2.9 V提升至5 V,適合USB充電,顯示出其作為無碳排放電力能源。

探討可調式聲波梯度透鏡受高強度雷射光穿透後的熱效應

由於符合活體研究、解析度、穿透深度等需求,加上螢光技術,使光學方法成為追蹤單一腦神經工作情形較合適的方式。其中重要元件 TAGlens (可調式聲學梯度折射透鏡)的透鏡(目前 z 軸焦距變動最快的透鏡裝置),透過焦距快速變動達到快速掃描。不過 TAGlens 在高強度雷射穿透下,焦距變化範圍會產生改變,我們稱之 TAGlens 的熱效應。 本研究即研究 TAGlens 的熱效應,使用不同研究方法以量化並分析,其中利用體積影像中螢光球軌跡變化的方法,明顯呈現了 TAGlens 熱效應的變化,我們發現入射雷射功率越大,會使 TAGlens 的焦距平衡點越遠,焦距變化範圍越小。未來可望校正 TAGlens 因熱效應造成的數據誤差。

修正未切換注音輸入法產生之字元

臺灣的許多人要使用電腦打字時皆會選擇「注音輸入法」作為輸入的方法。然而要使用注音輸入法輸入中文時若無切換輸入法則有可能會誤用到英文輸入法。如要輸入「今天天氣好」五字,使用英文輸入法輸入時會輸出「rup wu0 wu0 fu4cl3」。這種文字不易理解。本研究的目的即為研究將未切換到注音輸入法而打出的英數符號混和字元翻譯為漢字的方法。 本研究使用「PTT 中文語料」與「維基百科中文資料庫」訓練 GRU、BiGRU、LSTM 和 Transformer 以及計算維特比演算法,並與 Google 輸入工具的進行比較。整體來看以 PTT 中文語料計算的維特比演算法的 BLEU4 分數最高,在準確率以及 BLEU4 的評分皆高於Google 輸入工具,分數分別為 0.94 與 88.3 分。 本研究之成果在應用方面極廣,可應用於線上翻譯或聊天軟體的即時翻譯。本研究使用之程式碼開源於 GitHub 頁面,除了可讓使用者下載使用外,使用者也可訓練自己的模型。

In Silico Carotenoid Compound with Protein in Durian (Durio zibethinus Murr.) Seed Waste and Hedonic Test Innovation in Making Healthy Cereal Organic (HCO) (Nutrient-rich Functional Food Alternative)

Durians’ seeds have potential as a food source due to their content and nutrients. Durians’ seeds contain fiber, minerals, vitamins A, B1, B2, C, carbohydrates, folate, potassium and copper. Nutrients are needed for the body's health and growth and development process. Durians’ seeds have the potential as a nutrient-rich food alternative. Researchers made an innovation in the form of cereal, Healthy Cereal Organic (HCO). Analysis of durians’ seed content through two stages. First, wet lab examination and second, in silico method. The wet lab examination shows the results that durians’ seeds contain 10.17 Kcal of fat energy, 4.09% ash content, 11.25% water content, 72.79% carbohydrates, 1.13% total fat and 10.74% protein and the in silico method shows the content of carotenoid compounds (vitamin A, quercetin, beta-carotene, zeaxanthin) as a drug delivery system which means that this compound is able to be absorbed by the body with the help of albumin as a carrier that maintains stability and increases its activity. Feasibility analysis based on toxicity tests, Durians’ seed compounds show inactive (non-toxic) results. Allergenicity test showed non-allergen durians’ seed content. Hedonic test was conducted on 20 panelists dominant to the HCO1 sample for aroma by 60%, texture 90%, taste 40%. It can be concluded that durians’seeds can be used as a basic ingredient for making nutrient-rich Healthy Cereal Organic (HCO).

Raising the Microscopic Guardians from the Ocean-Pioneering A Natural Solution for Vibrio Control in Mariculture Using Marine Bacterivorous Ciliates Euplotes sp.

水產養殖在應對傳統漁業過度捕撈和資源下降所帶來的挑戰中扮演著重要的角色。隨著水產養殖作為全球食品安全和經濟發展的關鍵組成部分不斷嶄露頭角,它面臨著與細菌感染相關的挑戰,以及對抗生素過度使用的日益關注,這既對環境又對健康構成風險。我們的研究深入探討了海洋食微生物對生態系統的重要性,特別關注了在水產養殖背景下的 Euplotes sp.。為此,研究致力於建立 Euplotes sp. 的標準化培養方法,並評估其作為水產養殖中對抗細菌感染的生物防治的潛力。進行的實驗探討了 Euplotes sp. 在水質凈化方面的有效性以及對海洋細菌生長的影響。研究結果為水產養殖和廣泛的水產品生產領域發展環保和可持續實踐提供了希望。