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鳳凰木對大花咸豐草的相生相剋研究

本研究利用鳳凰木相剋物質,探討其對萵苣與大花咸豐草種子萌發及生長的影響,期望發展天然除草劑。研究動機來自於外來種大花咸豐草入侵嚴重威脅農業生態,本研究採用甲醇萃取、相剋物質粉末及葉片枝條粉末,透過室內培養與田間試驗,評估不同濃度對發芽率、胚軸、胚根及植株生長的影響。結果顯示,鳳凰木萃取液(1~5%)顯著抑制兩種植物的萌發,粉末處理則提高植物死亡率。本研究選取鳳凰木主要相剋物質試驗,綠原酸與鞣花酸抑制效果最佳,槲皮素較弱。研究指出,酚酸類為主要抑制因子,具備萌前與萌後的雙重抑制效果,其中萃取液與粉末可抑制萌發,而粉末分解後可能釋放養分促進後期生長,為天然除草劑的開發提供新思路。

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The conspiracy mentality: its relationship with absurdity and ostracism

Conspiracy theories are generally perceived as irrational, absurd and as having a negative effect on our reputation. Yet some people do not see them as such. This may lead us to wonder why and how an individual would come to believe or support such statements. In this work, the primary goal is to obtain the level of absurdity of various conspiracy theories so that they can be used in experiments designed to test Williams' “Strategic Absurdity Hypothesis”. In addition, this study attempts to demonstrate the link between conspiracy mentality and feelings of ostracism. In this research, I analyzed a group of 47 participants recruited via social networks in May 2023. The survey collected their demographic information, their conspiracy mentality, their feeling of ostracism, their knowledge of conspiracy theories and their perception of absurdity toward them. The results were analyzed using correlations and linear regressions. The results show a negative correlation between conspiracy mentality and the perception of absurdity for most theories. In other words, the higher a participant's conspiracy mentality, the less absurd the theory is perceived to be. Therefore, hypothesis (I) is partially supported. On the other hand, hypothesis (II), which says that ostracism predicts conspiracy mentality, is not supported by the results. These results are in line with Williams' “Strategic Absurdity Hypothesis” and Sterelny's signaling theory, explaining that an individual, by expressing agreement with a conspiracy theory typically perceived as absurd, damages their reputation in the eyes of others to show that they belong to the group. However, for the theories relating to COVID-19 and climate change, the conspiracy mentality does not predict the vision of absurdity, suggesting that their currentness and media coverage influence whether they are used as signals. The literature does not fully agree with our results and still presents very divergent opinions regarding the links between feelings of ostracism and conspiracy mentality. Indeed, it remains difficult to determine whether conspiracy mentality influences ostracism or vice versa. In conclusion, this study provides new ideas for future research on the origins and impact of the conspiracy theories.

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自製高效能蝦殼電池-新型太陽能電池的探究

研究以生物材料製成電極和太陽能電池的製作方法。以自製四點探針器測自製膜的電阻,得最佳電極條件:溶液pH4.7,-18°C、24hr前處理後噴TPP,在氯化鈉0.1M下反應,電阻率最低6.76Ω·m,機械強度1244.19g,結構穩定且可提升I−的轉換效率。以鋁網-幾丁聚醣氧化石墨烯膜為負極、銅箔-幾丁聚醣氧化石墨烯膜為正極,能使電子移動方向穩定,提升電流,且可彎曲增加應用性;使用花青素/葉綠素天然染料及0.5 M碘酸鉀/碘化鉀電解液,最後製成的電池電功率最高19.58mW,可取代ITO玻璃且串聯3顆可讓Led亮,以500W/cm2 強光照射電池組7天,電功率仍有31.21mW,具高抗衰減能力,未來可推廣至生活及教具使用。

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臭巨山蟻(Camponotus obscuripes)搶屍及搬屍行為之探究

本研究觀察臭巨山蟻(Camponotus obscuripes)處理同伴屍體的特殊行為。我們在三年間注意到,螞蟻基於巢穴衛生有「屍體清除行為」(necrophoresis),但在特殊狀況下 臭巨山蟻還會搶奪同伴屍體和搬屍繞行行為。我們進行一系列的實驗觀察,嘗試證明一些假設,最後得到以下結論: 一、臭巨山蟻在搬屍繞行同伴屍體時的行為與「屍體清除行為」有所不同,繞行行為通常在探索新環境時出現。牠們會將同伴屍體從棄屍場所搬出、舉起屍體在新環境四處移動,還會將屍體散佈在新的環境中,最後再將屍體移回棄屍場所 。 二、螞蟻在搶奪屍體的選擇上,可能與死亡時間有關。 三、螞蟻與其搬運的屍體之間不存在特定的配對關係。

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十字路口人車碰撞預測之研究

本研究探討如何利用電腦視覺技術預測十字路口行人與車輛碰撞風險,提升交通安全,採用YOLO物件偵測與運動追蹤技術,分析監控影像,透過LSTM 進行時間序列預測,評估可能的碰撞風險。研究先進行影像標註與資料處理,提升自訂物件偵測能力:偵測行人與車輛和追蹤其移動軌跡,建立LSTM預測分類模型,學習運動模式以預測碰撞風險。研究設計先用小球碰撞實驗模擬真實交通場景,訓練模型預測碰撞風險,並透過驗證分析調整參數,再進行實際路口影像處理。結果顯示能預測未來2秒碰撞風險的準確率達73%以上,還可以持續改進,提升精準度。未來,本研究可結合智慧交通管理與車聯網,提升道路安全並減少碰撞事故。

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環保(科技)海綿真環保?

科技海綿(又稱環保海綿)能在不使用清潔劑情況下去除污漬,被認為是環保用品。但在使用過程中會逐漸變小後消失,令人疑問的是:它真的溶解了嗎?是否會對我們和環境造成影響? 為此針對以下幾點探討: 一、探討其去污原理,並以顯微鏡觀察其纖維結構。 二、觀察使用後水體,確認使用後是否會釋放出塑膠微粒。 三、使用三聚氰胺檢測劑,測試使用後的水是否含三聚氰胺。 四、以使用過水種植綠豆與水蘊草,觀察生長情形,評估對生物的影響。 五、檢測市售牙齒美白橡皮擦,使用後是否釋放三聚氰胺或塑膠微粒,提醒消費者注意 安全。 透過實驗,期能探討科技海綿是否真的「環保」,並進一步了解其對生態環境的影響。

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Design and Simulation of a Honeycomb Sandwich Panel as a Heat-resistant and Durable Construction Material

One of the main factors that contribute to fire incidents and the excessive heat people feel during a heat wave is the building materials used, and one such material that possesses durable and heat-resistant properties is sandwich panels. A possible structure that can be used to model sandwich panels is honeycomb structures; however, further research has yet to be conducted on its applications as a heat-resistant urban construction material. This study aims to design a three-dimensional model of a honeycomb sandwich panel and simulate its performance under different thermal and structural stressors. A 3D model of the honeycomb sandwich panel was generated using Autodesk Fusion 360. Then, multiple versions of the panel were generated with varying heat-resistant core materials—namely, aluminum, nickel, nickel-copper alloy 400, and copper—along with polystyrene as the core material for the control model. The following properties of every panel were assessed using finite element analysis (FEA): static deformation, stress distribution, strain distribution, total heat flux, and thermal gradient. Results showed that when subjected to varying structural loads (2 kN, 5 kN, 7 kN), the nickel-core panel demonstrated the best results in terms of static deformation and strain distribution due to its relatively lower deformation and elongation values, respectively. Meanwhile, under the same structural loads, the aluminum-core panel performed better than other core materials in terms of stress distribution due to it having the relatively highest difference between its simulated von Mises stress and its yield strength. The honeycomb sandwich panels have also shown to possess heat-resistivity when subjected to a thermal load of 90°C, with polystyrene being the most promising material overall in terms of heat-resistance due to its relatively lower heat flux and thermal gradient. The results from this study would contribute to future research on honeycomb sandwich panels and may be used in real-life applications.

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Autonomous Ecosystem Surveillance Vehicle

As of 2021, there are 368 harmful algae blooms and over 6000 invasive species in the United States of America. Furthermore, it is reported that the United States spends more than 11.1 billion dollars per year on clean-up methods for marine debris. However, there currently isn’t a method to monitor aquatic problems simultaneously, autonomously, and efficiently, creating a capability in the aquatic biosecurity sector. To combat this, we have created an autonomous vehicle that can conduct long-term monitoring of freshwater bodies for up to 60 hours.

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「折折」稱奇

過A列×B行(AA,A×(B-1)+1-(B-A),(2)B=A,A×(B-1)段;(三)A>=3,2A-1<=可能的段數<=最多段數;A=2,可能的段數為最少段數、最多段數及兩者間的連續偶數。(四)當A公差為d,折線最少段數為公差2d的等差數列;A相同且B公差d,若A為偶數,最多段數的公差為A×d,若A為奇數且(1)A

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「AI」說笑?AI與人類的幽默感差異探究

本研究探討人類與生成式人工智慧(Artificial Intelligence,AI)在幽默創作上的表現和兩者幽默感內涵的差異。本研究以人類、ChatGPT及DeepSeek為研究對象,分別創作四種類型笑話(諧音梗、雙關語、禁忌、反常識),再請受試者對這些笑話進行量化的幽默評價,並輔以質性分析 了解其評價原因。量化結果顯示,人類的諧音梗與反常識笑話創作顯著優於AI;而雙關語及禁忌笑話創作則皆無顯著差異。另外,質性分析更指出受試者認為AI創作常有「笑點生硬」或「情緒不足」問題;人類創作則貼近日常情境,容易引起共鳴,在整體節奏布局跟反差感方面也較為自然流暢。本研究認為,AI的語言生成雖已有相當水準,但在非文字層面,人類的敏感和靈活度仍較具有創意優勢。

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觀音山火山熔岩與其礦物比例研究 A Study on the Mineral Ratios of Guanyinshan Volcanic Rock

透過親手磨製岩石薄片及礦物比例數據,探討觀音火山熔岩的差異與其差異原因。根據前人研究得知,觀音山經過五次噴發,共有七種不同的火山岩。比對地質圖,尋找各層出露地點共17處,進行田野調查、空拍記錄及樣本採集,並磨製岩石薄片共14片,進行岩相觀察與礦物面積比例計算。 本研究觀察到觀音山熔岩有漸變關係,符合鮑氏反應序列。從橄欖石玄武岩→普通輝石玄武岩→普通輝石安山岩→兩輝石安山岩→紫蘇輝石安山岩→黑雲母角閃石安山岩。 並依據新的田野調查資料,修正觀音山的地質圖資;建立火山噴發歷程模擬動畫;製作立體地形模型,以瞭解對地質地貌關係,皆可做為日後觀音山地球科學教育之參考。

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探討濕地耐鹽菌對植物耐鹽及根部的交互作用

本研究從濕地篩選出可能為新種的耐鹽菌Oceanobacillus sp.,暫命名為OC2,其在無植物相伴狀態下不會降低土壤含鹽量,但卻在與植物共存後誘發特殊機轉,促使土壤含鹽量降低約,並提升植物耐鹽能力,顯示 OC2與植物存在特殊交互作用。深入研究發現,OC2能產生IAA,並吸引植物根部向其生長以利其進入根部,並在鹽逆境下分泌代謝物以刺激植物合成脯胺酸 (增加達98.5%)提升根部滲透壓、增加葉片類胡蘿蔔素及類黃酮含量以提升植物抗氧化力。植物方面,鹽逆境下植物分泌的化學物質會觸發OC2產生更多的IAA(約17%),藉以刺激植物根系發展以利水分吸收,而OC2的存在會促進根部澱粉酶活性上升達88%,以分解澱粉產生可溶性醣類供OC2使用,推測兩者存在共生關係。本研究展示新種耐鹽菌與植物的交互作用,期待透過此菌改善鹽化農地並能提升作物產量。

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