Commercially available bandages such as hydrocolloid are neither biodegradable nor anti-bacterial. Chitin is known to be the second most naturally available polysaccharide which could be transformed to chitosan which is known to be anti-bacterial (Hasan, 2018) (Chao, 2019) and haemostatic (Okamoto, 2003) (Hu, 2018). Chitosan can be further converted to hydrogel which is bio-degradable and has good water absorbance. Anti-bacterial crab bio-bandages and crab bio-dressings should be bio-degradable as it took 42 days and a month for complete bio-degradation respectively, so they should be better than commercial bandages such as Nexcare Hydrocolloid as the disposal of anti-bacterial crab bio-bandages with bio-dressings would no longer pose burden to landfilling or threat to our environment. Anti-bacterial crab bio-bandages with bio-dressings are anti-bacterial with degree of deacetylation of DD% (measured using FTIR Spectrum II) 82.6% (due to the presence of chitosan) even without the application of other anti-bacterial agents and hence can provide complete protection of wounds from skin and soft tissues infections and haemostatic (due to the presence of chitosan). After testing and certification based on IS997:2004 and BS EN 13726-1, they should meet many requirements specified. Anti-bacterial crab bio-bandages should be eligible for marketing. Some results were as follows: 1.4 Anti-bacterial effect of crab hydrogels and roasted crab hydrogels Pure chitosan, crab chitosan, crab hydrogels and roasted crab hydrogels showed significant anti-bacterial effect. NO oral bacterial colonies were present in drinking water with crab hydrogels. Thus crab hydrogels could serve as effective anti-bacterial wound dressings. 1.6 Basing on IS997:2004 standard, the load per unit of area of anti-bacterial bio-bandages was 342g/m2 which met the minimum requirement of 36g/m2, the anti-bacterial bio-bandages had stronger tension strength (>20N both in dry and wet conditions) than commercial hydrocolloid. (2.7N dry 2.8N wet) which was comparable with that required (50-67N) and pH of about 7 which met the pH range of 4.5-8. 1.7 The FSA Free-Swell Absorbency of synthetic blood of crab hydrogel bio-dressings was 1.86g per 5cm x 5cm dressing which was much higher than that of commercial hydrocolloid (0.299g per 5cm x 5cm dressing) based on BS EN 13726-1.

Harmful microorganisms in food can cause deterioration of human health, poisoning and in some cases even death. Especially fresh meat and chicken products create a suitable environment for the growth of microorganisms in terms of the nutrients it contains, water activity and pH level. For this reason, detection of microorganisms in meat products is an important issue in terms of food safety and human health. In this project, it is aimed to detect live microorganisms in meat products, especially chicken meat, in a simple, non-destructive, non-contact and fast way using laser speckle method. Laser speckle images of healthy and stale chicken meat were taken, contrast parameter and correlation analysis of the obtained patterns were made. It was observed that the contrast parameter for staled chicken meat increased by approximately 3 times compared to fresh chicken. This increase provides an understanding of the difference between contaminated chicken and fresh chicken. Speckle density changes over time in relation to the movements of living microorganisms. Thus, the correlation in laser speckle density patterns taken from contaminated tissues is disrupted. In the measurements taken with photodiode, by analyzing the change of light intensity of the speckle patterns on fresh and contaminated tissues over time, the detection of microorganisms was made easier and more precisely without the need for image processing. The proposed measurement system is a new method that detects meat contamination with laser speckle imaging. It can be developed and made portable and can be used easily in homes. Since it is a simple, non-destructive and fast method, it can be used to determine the shelf life of meat in food distribution places and markets. In addition, it has the potential to be calibrated and used for other food products other than meat products. The system developed with this study is cheap and easy to use, and the laser speckle imaging method is used in a different field other than biomedical, contributing to the literature.

The lack of drinking water in human settlements triggers a series of problems that are linked and affect the development of humanity: health problems, lack of water security for companies, lack of jobs, insecurity, among others. We observe this problem in the communities of the municipality of Las Vigas de Ramírez, Veracruz, where there is a great problem with the water supply, although there is a high presence of mist. Faced with this situation, we undertook the task of investigating a water harvesting method that is easy to implement, operate and maintain. We investigated and analyzed the methods of mist condensation through physical barriers, finding that the polyethylene shadow mesh was the means to achieve this, because it allows the passage of the wind, it is very light, easy to manipulate and above all that it presents the phenomenon of percolation that allows water droplets of various diameters to be accommodated therein. We designed a device that allows to present a mist catchment area through a prismatic structure enabled with meshes and condensed water receivers, portable, easy to use and maintenance and very economical with a performance of 20 liters per day. To achieve our project, factors such as air humidity, dew point, wind speed and direction, height, temperatures and available spaces must be considered.

降海中陸蟹遭路殺是嚴重的保育議題，本研究探討降海中陸蟹對不同色光的光趨性，評估光趨地下廊道之可行性。研究於壽山進行白、紅、藍、紫、綠光之趨性實驗，分帳篷和水管兩種測試，綜合結果顯示毛足特氏蟹對藍光展現最高的光趨性，白光及紅光次之，最後是紫光及綠光，在綠光閃爍下呈現明顯的迴避性。接著於墾丁香蕉灣進行藍光誘導實驗，得出多數降海中毛足特氏蟹被光源吸引而由藍光處離開。本研究為國內外首次對降海中陸蟹進行光趨性實驗，得出以下結論：降海中毛足特氏蟹對藍光有顯著光趨性，此結果可望應用於陸蟹降海路線的涵道，利用光誘導降低陸蟹於地下廊道的迷航現象並提升其利用，以減少陸蟹媽媽和數以千計的卵遭路殺的機率。

因應疫情，為了知道社交距離在矩形裡可以怎麼排最多人，我們先從面積小的矩形範圍去排，試過正方形排列、三角形排列等方法，試著從中找出最密排列的規律，接著再慢慢的把矩形加長加寬，使面積加大，試著用不同的排列方式去堆疊，最後可以依照條件去計算任意矩形，使用推移法、補隙法等，得到優化緊密度的方法。

從科學研習月刊中「森棚教官的數學題」的一道數論問題： 「你可以找到多少組正整數對(a,b)，讓 的平方減5是b的倍數，b的平方減5是a的倍數？」 觀察到盧卡斯數列相鄰奇數項滿足原問題的解，也發現某數列與原問題的解間滿足充分條件，於是延伸問題改為數列恆等式，推廣更一般情形，即 階整係數齊次線性遞迴數列，簡稱 階線性遞迴數列。本作品建構兩種k階線性遞迴數列來探討，其兩數列分別是由盧卡斯數列及費氏數列類推而得。 第一種數列是利用特徵複數根性質來探討，而第二種數列是配合k階Cassini恆等式來求其解。最後利用兩個恆等式或不等式來描述上述兩種數列，是由Vandermonde行列式來論證。

Due to having Asperger's syndrome, I want to make a pressure vest suitable for hot and humid climates like Asia to help reduce the daily anxiety of children and adults with autism, ADHD, sensory disorders, etc. To solve this problem, I first tried using a porous material. But after seeing a pressure vest in person, I found it to be useless. Therefore, I came up with the idea of creating an active airflow cooling system between the body and the pressure vest. To experiment, I wanted to make pressure vests. However, I found that a high-frequency TPU welding machine is required. Thus, I made models of pressure vests using airbags, water-resistant nylon, and quick-drying fabric. I also made models, which came from sandwich fabric. Through this research, I discovered that the sandwich fabric design has the best passive heat dissipation, and the combination of the sandwich fabric and the active airflow cooling system has the best active heat dissipation.

家庭餐桌上，妹妹總要吃最甜的葡萄，愛漂亮的姊姊只要微甜口感，罹患糖尿病的阿姨卻害怕吃到甜葡萄，面對衆多不同需求，我們思考：有沒有一種方法，可以迅速在清洗水果到端上餐桌過程中，就能直接分辨甜度並做出分級？ 我們以不同品種葡萄為實驗對象，採持續加入溶質增加溶液密度方式，觀察其在水中沉浮變化，配合糖度計實測葡萄糖度，得到「葡萄越慢浮出，糖度越高」的結論，驗證「葡萄甜度與在逐漸增加密度溶液中的沉浮順序相關」之假設。 本研究提出經濟實用的自製非侵入式糖度篩選法，輕鬆為葡萄甜度分級，還可擴大應用於市場及醫院，讓民眾不必花大錢也能享受應用科學帶來的生活品質。並發想能朝構建糖度與密度資料庫，做為產業分級應用。

這次的研究是要找出，當利用正方形排列成多邊形時，最多邊數的多邊形，其邊數的快數算法。首先我們討論限制堆疊方式的必要性，再透過圖形觀察，找出影響邊數變化的因素。再利用其因素，找出能排出最多邊數的「十字形排法」。推排出不同正方形數時的最多邊形邊數，再觀察其邊數間的關係，找出五個規則，之後先證明這五個規則的正確性，再利用其找出快速算出最多邊多邊形邊數的算法步驟，得到我們要找的研究結果。

本篇研究主要在探討UV照射黴菌所導致的幾丁質含量變化。本組以家庭中常見的青黴菌複合體作為材料，證實黴菌經UVB照射30秒後可促進生長及增加養分的累積，並且也能得到稍多的幾丁質及幾丁聚醣。我們從文獻分析黴菌和蝦蟹外殼的幾丁質結構，發現其結構上有所差異，再比較由實驗萃取幾丁聚醣的成本和市面上大多是經蝦蟹外殼萃取產品的售價，發現兩者價格差異不多。

本實驗研發新型水膠細胞優化技術，成功提供一個平台供應淋巴細胞激活信號（MHC-antigen complex）、共刺激配體及細胞因子刺激三大要素，能激增殺手Ｔ細胞。實驗中優化的水膠細胞能完整保留細胞膜的表面特性，經實驗證實無生物安全性的疑慮。另外本實驗也著重於探討人工合成抗原細胞強韌度對T細胞增生程度的影響。我們利用水膠細胞易改變細胞質強韌度且不影響生物相容性的優點，針對T細胞增生程度進行比較。本研究結果顯示，高細胞質強韌度(120kPa)的人工合成抗原細胞（aAPCs, Artificial antigen presenting cells）擁有高效率的T細胞激活潛力，相對於低細胞質強韌度(25kPa)的對照組可以提高約51.2%，並達到顯著差異，推測其和收縮性及突出性絲狀肌動蛋白增加以致訊號增強有關。本實驗的新型水膠細胞優化技術提供臨床醫學免疫療法一個高潛力的新技術平台。

我們從網路發現超音波居然能讓保麗龍粒懸浮在空中！對聲懸浮產生興趣後，我們自製能調整高度的檢測裝置，進行聲懸浮變因和移動的探討。 我們歸納最適合MiniLev聲懸浮裝置的換能器是上T下R頻率40 kHz、直徑16mm、開放型、收發分體，最佳懸浮高度為15mm，第二節點承載效果最佳。當高度改變，新節點是以「上下交替」方式增加，造成保麗龍粒上升距離為拉高高度的一半。 我們發現焦距15cm凹透鏡適合當反射板，防水且懸浮效果更佳，可取代不防水的換能器R。薄片適合當懸浮物，懸浮穩定且因「下大上小的順時針螺旋形力道」造成自動旋轉效果。色紙經手工或雷射雕刻機設計與切割，能製作可懸浮與旋轉的美麗造型，藉由控制高度還能改變轉速，是值得推廣的科普活動！