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Head and Neck Tumor Segmentation and Outcome Prediction: Second Challenge, HECKTOR 2021, Held in Conjunction with MICCAI 2021, S

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This book constitutes the Second 3D Head and Neck Tumor Segmentation in PET/CT Challenge, HECKTOR 2021, which was held in conjunction with the 24th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2021. The challenge took place virtually on September

27, 2021, due to the COVID-19 pandemic.The 29 contributions presented, as well as an overview paper, were carefully reviewed and selected form numerous submissions. This challenge aims to evaluate and compare the current state-of-the-art methods for automatic head and neck tumor segmentation. In the

context of this challenge, a dataset of 325 delineated PET/CT images was made available for training.

pet材料進入發燒排行的影片

以物理試驗及數值耦合分析探討3D列印地工格網於軟弱土壤之加勁機制

為了解決pet材料的問題，作者簡志峻 這樣論述：

地工格網應用於無鋪面道路之加勁效果，已有許多學者利用物理試驗及現地實驗等不同方式進行加州貫入比(CBR)之評估，但其產製方式與幾何性質對於加勁效果的相關研究，仍屬少數。本研究分別以物理實驗與數值模型進行分析與探討，在物理實驗部分以CBR試驗進行分析，並以高嶺土作為軟弱路基黏土層的材料，基底層材料為單一尺寸的人造三角柱研磨石，由不同變數包含基底層厚度、地工格網開口幾何形狀、產製方式(市售PET材料與3D列印材料)等條件下探討加勁機制與效益。研究結果顯示，地工格網於軟弱黏土之加勁效果顯而易見，並以三角形孔徑地工格網加勁效果較佳。在數值模型部分，本研究依據物理實驗模型，運用有限差分分析軟體(FLA

C3D)以連體力學建立路基層架構，由離散元素分析軟體(PFC3D)以顆粒力學建立基底層與地工格網架構，並將FLAC3D與PFC3D藉由等效力系統轉換概念進行耦合運算，以探討無鋪面道路加載過程，路基層、基底層及地工格網加勁機制與微觀行為，並由實驗結果進行參數校正與模型驗證。研究結果顯示，地工格網提供張力作用，減少路基層與基底層界面之垂直應力；此外，由基底材顆粒位移、接觸力發展、路基層剪應力及累積剪應變等分析結果顯示，地工格網之加勁機制使基底層發揮顆粒互鎖機制，並與其產生圍束效應，使應力分布較寬廣，進而導致路基層頂部的接觸壓力相對較低，此一現象及加勁機制為相關課題首次以數值耦合分析證實。綜合以上所

述，運用3D列印之地工格網，具有與市售加勁格網之類似效果，因此可在後續研究中客製化不同類型地工格網，並藉由連續體耦合非連續體數值模型，調整路基層、基底層與地工格網相關參數，可進一步先行模擬各參數於設計路基剖面所產生之等值加勁效果，提供給工程設計使用。

3rd International Conference on Innovative Technologies for Clean and Sustainable Development: Itcsd 2020

為了解決pet材料的問題，作者 這樣論述：

Embodied energy and cost of load bearing masonry with alternative binders and units - case study.- Assessing efficiency of protective treatment materials for brick structures.- Structural Performance of Timber-Framed Joints for Sustainable Civil Engineering Construction.- Enhancement of Sub-Grade

Soil Strength with Additives: Cement & Molasses.- Development of innovative green self-compacting concrete with partial replacement of fine and coarse aggregate by using slag.- Utilization of industrial wastes in concrete mixes - A review .- Precious Recycling of Reclaimed Asphalt as Hot Mix As

phalt by Use of Rejuvenator.- Thermal properties of foamed concrete; a review.- Influence of Bacillus megaterium on crack healing and mechanical properties of concrete.- Re-interpreting and Adapting the Site Specific Vernacular Passive House Architectural Strategies for Reducing Building Energy Dema

nd.- A comparative study on the sustainability of public and private road transportation systems in an urban area: Current and future scenarios.- Structural Property Assessment of GFRP Reinforced Concrete Beams.- Concrete with Encapsulated Self-Healing Agent: A Critical Review.- Effect of masonry in

fills on seismic response of RC framed buildings.- Role of FRP in developing sustainable infrastructure - A review.- Applications of Fiber Reinforced Polymer Laminates in Strengthening of Structures.- Behaviour of RC Beam-Column Joint subjected to Opening Moments: Test & Numerical Validation.- R

eduction of annual energy consumption of Multifamily dwellings using BIM and Simulation Tools.- Evaluating the effect of speed variation on vehicular emission using an integrated modelling approach.- Cold-formed Steel Concrete Composite Slab: Structural Performance Evaluation through Experimental St

udy.- Investigation of Critical Factors Influencing Cost Overrun in Highway Construction Projects .- Use of Char Derived from Waste Plastic Pyrolysis for Asphalt Binder Modification .- Development of sustainable masonry blocks using industrial rejects and alkali activation.- Self-Compacting Concrete

- Optimization of Mix Design Procedure by the Modifications of Rational Method.- Corrosion characteristics of rebar induced in different types of fibre reinforced concrete.- Physical and microstructural properties of Construction and Demolition Waste based masonry units.- Waste Recycled PET as A Bi

nder in Polymer Mortar.- A Study on Performance of Carbon based Nano-enabled Cement Composites and Concrete.- Cost and Feasibility Analysis of Chromium Removal from Water using Agro and Horticultural Wastes as Adsorbents.- Influence of the packing density of fine particles in ternary, quaternary and

quinary blends on High Performance Concrete.- Experimental Investigation of Rheological Properties of Recycled Aggregate Concrete.- Management of sustainable infrastructure projects: A scientometric analysis.- Utilization of stone dust as an effective alternative for sand replacement in concrete.-

Design of new green building using Indian Green Building Council rating system.- Characterization and Optimization of Polyurethane Based Bituminous Waterproofing Membrane.- An overview on utilization of stone waste in construction industry.

常壓噴射電漿製備電漿活化水及其應用研究

為了解決pet材料的問題，作者張舒涵 這樣論述：

近年來，電漿活化水在生物醫學方面應用極為廣泛，例如：癌細胞處理、傷口癒合和殺菌。本研究使用自組之常壓電漿束，以氬氣為主要氣體並混合不同的反應氣體(空氣、氮氣、氧氣)製備電漿活化水，檢測不同條件下產生的電漿活化水水中化合物濃度變化，並探討化合物濃度與氣相物種相對濃度的關聯。實驗結果顯示，電漿活化水中含有硝酸、亞硝酸、過氧化氫與臭氧。電漿活化水的酸度和過氧化氫之濃度以氬氣電漿為最高，主要受不同進料氣體產生之電漿強度所影響，電漿強度越大，可在水中產生更多氫離子和羥基，使得pH值更低，並因羥基的覆合作用形成更多過氧化氫。而當進料氬氣加入1%空氣時，水中的亞硝酸根濃度明顯高於其他進料氣體組合，由電漿光

譜中發現，亞硝酸根濃度與氣相之一氧化氮相對濃度有關。硝酸方面，在低氣體流量時，以純氬氣電漿最高，因高能量電子可撞擊水面導致較多的NO或NO2在水面上形成，並溶於水產生硝酸鹽，然而在調高氣體流量後，以進料氬氣加入1%空氣時，水中的硝酸濃度最高。本研究也以模擬的化學溶液比較其與電漿活化水對轉醣鏈球菌、大腸桿菌的殺菌效果，發現在pH值2.5時，亞硝酸根不論與過氧化氫亦或是硝酸組合，其對大腸桿菌的滅活能力均可使菌落數低於檢測極限；而轉醣鏈球菌的殺菌實驗可以看出，即使以亞硝酸根、硝酸和過氧化氫組合的化學溶液殺菌，其滅菌的效果依然低於電漿活化水，間接證明，除了電漿活化水中長壽命物質濃度影響了殺菌效果，在電

漿活化水中無法量測之短壽命活性氮氧物種在殺菌中也同樣扮演著重要角色。