2d的問題，透過圖書和論文來找解法和答案更準確安心。 我們找到下列問答集和資訊懶人包

Graphene and 2D Materials in Heat Transfer: Fundamentals and Applications

為了解決2d的問題，作者 這樣論述：

Heat transfer is a major engineering challenge that has implications in several areas including space, energy, transportation, manufacturing, and medicine. Graphene and other 2D materials have outstanding thermo-physical properties. As a result, these materials are being exploited in various appl

ications. Although several reports have been published on fundamental heat transfer aspects of such materials, the topic remains challenging to understand for many who are new to it. Graphene and 2D Materials in Heat Transfer: Fundamentals and Applications aims to provide readers with the most recen

t information on the synthesis and applications of graphene in heat transfer. Furthermore, mechanical and thermal properties of 2D materials, solid-liquid interface phonon transfer at the molecular level, methods and observations of transport phenomena in nano-micro domains will be addressed. The bo

ok also offers detailed coverage of the emerging applications of 2D nanofluids and nanolubricants as alternatives to conventional heat transfer fluids The book explores applications in microchannel heat sinks, micro heat exchangers, and micro heat pipes, molecular dynamics (MD) simulations for heat

transport problems related to 2D materials and applications. In addition, convective heat transfer approaches for 2D materials and nanocomposites are also addressed. This is an important reference source for materials scientists and engineers who want to learn more about how graphene and other class

es of 2D materials are being used as heat transfer agents.

2d進入發燒排行的影片

一個使用智慧型手機實現深度學習心電圖分類的心臟疾病辨識系統

為了解決2d的問題，作者何亞恩 這樣論述：

目錄誌謝 i摘要 iiAbstract iii目錄 v圖目錄 viii表目錄 xi第一章 緒論 11.1研究動機 11.2研究目的 21.3研究架構 2第二章 研究背景 32.1心電圖與疾病介紹 32.1.1心臟導程 32.1.2心臟疾病介紹 52.2Android系統 102.2.1 Android的基礎 102.2.2 Android系統框架 102.3相關文獻探討 11第三章 研究方法 173.1資料庫介紹 173.2訊號前處理 193.2.1小波濾波 193.2.2訊號正規化 213.3一維訊號轉二維影像 213.3.1手機螢幕上

繪製圖形 213.3.2影像儲存於智慧型手機 233.3.3資料擴增Data Augmentation 243.4深度學習架構 253.4.1多卷積核架構 253.4.2注意力模型 283.4.2.1通道注意力模組Channel attention 293.4.2.2空間注意力模組Spatial attention 303.4.2.3激活函數Activation function 303.5損失函數Loss function 313.6交叉驗證Cross validation 323.7優化訓練模型 333.8移動端應用 343.9硬體設備、軟體環境與開發環境 36

3.9.1硬體設備 363.9.2軟體環境與開發環境 37第四章 研究結果與討論 3834.1評估指標 384.2訓練參數設定 404.3實驗結果 414.3.1深度學習模型之辨識結果 414.3.1.1比較資料擴增前後之分類結果 414.3.1.2不同模型架構之分類結果 424.3.2智慧型手機應用結果 464.4相關文獻比較 48第五章 結論與未來展望 525.1結論 525.2未來展望 53參考文獻 54

Handbook of Proteolytic Enzymes: Serine and Threonine Peptidases

為了解決2d的問題，作者 這樣論述：

The Handbook of Proteolytic Enzymes has stood as most comprehensive work in the field of applied enzymology and biocatalysis since the first edition published in 1998. Extensively revised and updated, the new, fourth edition is an essential reference for biochemists, biotechnologists, and molecul

ar biologists across academia and industry. Edited by world-renowned experts in the field and with five volumes available for individual sale, this work provides detailed information on all known proteolytic enzymes researched to-date, with expanded coverage of metallopeptidases, cysteine peptidases

, serine and threonine peptidases, aspartic and glutamic peptidases, and inhibitors of proteolytic enzymes. This volume, Serine and Threonine Peptidases, includes over 400 chapters on known serine and threonine peptidases, including their name, history, activity and specificity, structural chemistr

y, preparation, biological aspects, and distinguishing features, with 2D and 3D structures of peptidases in color, extensive references, and links to PubMed and MEROPS databases.

少數層二硒化鈀之電性傳輸與熱電性質

為了解決2d的問題，作者李天任 這樣論述：

尋找高效率的熱電材料是一個重要而有趣的課題，二維 (Two-Dimensional, 2D) 過渡金屬二硫化合物 (Transition Metal Dichalcogenides, TMDC)，因其優越的熱電性能以及未來廣闊的應用前景而受到廣泛關注。其中，二維二硒化鈀 (PdSe2) 因其理論上計算出高熱電性能，吸引了眾多科研工作者的目光。本實驗使用機械剝離法，剝取少數層PdSe2，利用半導體製程技術製作少數層二硒化鈀的場效電晶體與熱電元件，在室溫下研究了二硒化鈀的電性。本實驗中，二硒化鈀為n型半導體材料，電流的開關比 (On/Off Ratio) 約爲104，臨界擺幅 (Subthre

shold Swing, S.S.) 約爲9.52 V/dec，載流子遷移率 (Mobility) 最大為34.7 cm2·V-1·S-1。 另外，在二硒化鈀元件的熱電性能測量上，得到的最大席貝克係數約爲655 µV/K，與理論值十分接近，並觀察到席貝克值與電晶體場效應有關聯性。當閘極偏壓設定在臨界電壓附近時，席貝克係數到達峰值，而當閘極偏壓小於臨界電壓時，通道關閉沒有熱電效應。最後計算了二硒化鈀的熱電功率因子(Power Factor, PF)，通過調節閘極偏壓觀察熱電功率因子隨場效應的變化，並對比相應的材料層數，發現最大熱電功率因子為0.26 mW/m·K2，材料厚度為12層，證明二硒化鈀

是極具潛力的熱電材料。