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Fractal Design North的問題，我們搜遍了碩博士論文和台灣出版的書籍，推薦Lin, Xiangning/ Ma, Jing/ Tian, Qing/ Weng, Hanli寫的 Electromagnetic Transient Analysis and Novel Protective Relaying Techniques for Power Transformers 可以從中找到所需的評價。
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國立臺北護理健康大學 護理研究所 王美華所指導 陳昕彤的 耳穴按壓對腦中風病人焦慮、憂鬱及心率變異度改善之成效 （2021），提出Fractal Design North關鍵因素是什麼，來自於耳穴按壓、焦慮、憂鬱、心率變異度、自律神經。
而第二篇論文南臺科技大學 電子工程系 陳文山所指導 李健平的 應用於第五世代行動通訊多埠小型無線接入天線設計 （2021），提出因為有 小型化橋接點天線、電磁能隙結構、頻率選擇表面、陣列天線的重點而找出了 Fractal Design North的解答。
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Electromagnetic Transient Analysis and Novel Protective Relaying Techniques for Power Transformers
為了解決Fractal Design North 的問題，作者Lin, Xiangning/ Ma, Jing/ Tian, Qing/ Weng, Hanli 這樣論述：
An advanced level examination of the latest developments in power transformer protectionThis book addresses the technical challenges of transformer malfunction analysis as well as protection. One of the current research directions is the malfunction mechanism analysis due to nonlinearity of transfor
mer core and comprehensive countermeasures on improving the performance of transformer differential protection. Here, the authors summarize their research outcomes and present a set of recent research advances in the electromagnetic transient analysis, the application on power transformer protection
s, and present a more systematic investigation and review in this field. This research area is still progressing, especially with the fast development of Smart Grid. This book is an important addition to the literature and will enhance significant advancement in research. It is a good reference book
for researchers in power transformer protection research and a good text book for graduate and undergraduate students in electrical engineering.Chapter headings include Transformer differential protection principle and existing problem analysis; Malfunction mechanism analysis due to nonlinearity of
transformer core; Novel analysis tools on operating characteristics of Transformer differential protection; Novel magnetizing inrush identification schemes; Comprehensive countermeasures on improving the performance of transformer differential protectionAn advanced level examination of the latest d
evelopments in power transformer protectionPresents a new and systematic view of power transformer protection, enabling readers to design new models and consider fresher design approachesOffers a set of approaches to optimize the power system from a microeconomic point of view Xiangning Lin, Profe
ssor, College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, China.Prof. Lin was the first to discover the ultra-saturation phenomenon of power transformer and he designed operating characteristics analysis planes to make clear the advantages and disadvantag
es of existing differential protection of power transformer. He invented a variety of novel protection algorithms for the main protection of the power transformer. A series of papers were published in journals including IEEE Transactions on Power Systems and IEEE Transactions on Power Delivery. The
work has been widely acknowledged and cited by international peers. He also pioneers the introduction of modern signal processing techniques to design the protection criteria for power transformer. He was the winner of the 2nd Class National Natural Science Award in 2009. He has published nearly 200
papers and books (in Chinese), he also owns over 15 patents. Jing Ma, Associate Professor, School of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China.Prof. Ma was the first to apply the two-terminal network algorithm to the areas of power system protectio
n. The work has been widely acknowledged and cited by international peers. He also proposed an approach based on grille fractal to solve the TA saturation problem, and the related paper has been published in the IEEE Transactions on Power Delivery. The research results were used in many practical en
gineering projects.Dr. Qing Tian, Senior Engineer with the Maintenance and Test Center of EHV Transmission Co. Ltd, Southern Power Grid, Guangzhou, China.Dr. Hanli Weng, Senior Engineer with Three-Gorge Hydropower Plant, China Yangtze Power Co., Ltd.Both have been working in this area since 1995. Th
eir main research fields include power system operation analysis and control, voltage and reactive power optimization, power system reliability and risk assessment and power system energy saving assessment and planning.
耳穴按壓對腦中風病人焦慮、憂鬱及心率變異度改善之成效
為了解決Fractal Design North 的問題，作者陳昕彤 這樣論述：
台灣每年約有一萬七千人會因為中風而導致日常生活失能，是成人殘障的第一要因。腦中風後的憂鬱感受約佔中風病人20-60%，中風的嚴重度、日常生活功能障礙程度與憂鬱呈現正相關，中風後憂鬱會影響復健動機及延遲功能恢復。急性腦中風後交感神經過度活化，導致心率變異度下降，進而導致急性神經功能惡化和心血管併發症風險，會增加腦中風病患死亡率增。目前已有許多以類實驗性研究設計進行的實證性的研究支持耳穴按壓能增加副交感神經活性及降低憂鬱程度。本研究採隨機對照研究設計，於北部某醫學中心進行資料收集，共收案62位，所得資料以SPSS 20.0統計軟體進行統整與分析，以次數、百分比、平均值、標準差、卡方檢定、獨立樣本
t、Pearson’s correlation及廣義估計方程式(Generalized estimating equations, GEE) 來進行檢定。依據文獻統整後，選穴耳神門、心穴、肝穴、內分泌、交感及皮質下，進行四週的耳穴按壓後，可明顯降低腦中風病人的焦慮憂鬱程度，及改善交感及副交感神經活性。
應用於第五世代行動通訊多埠小型無線接入天線設計
為了解決Fractal Design North 的問題，作者李健平 這樣論述：
本文提出了三款應用於WRC 5G C-Band的天線設計，分別為兩款多輸入多輸出(Multi-input Multi-output; MIMO)小型橋接點天線設計，以及一款陣列天線設計，並針對將天線個別地與頻率選擇表面(Frequency Selective Surface; FSS) 以及電磁能隙 (Electromagnetic Bandgap; EBG)整合，並與使用金屬反射面做特性分析、比較與探討。第一款天線是針對在反射面上設計槽孔並降低天線整體高度為主要設計目的，其應用頻帶為GPS (1.575 GHz)與WRC 5G C-Band (3.4 – 3.6 GHz)。板材使用兩塊10
0 mm X 100 mm X 1.6 mm，正切損耗為0.0245，介電係數4.4的玻璃纖維板(FR4)所組成，上層為天線主體，下層為金屬反射面，兩者間距為16.5 mm；本天線使用正面的微帶線與背面的不對稱U字型槽孔激發共振產生出WRC 5G C-Band的頻帶，而中間的I字型槽孔天線則是用來激發產生出GPS的頻帶，並透過在反射的金屬面上設計槽孔，來降低天線整體高度並能達到有效的提高隔離效果，此外並可將場型向上輻射，令天線增益得到提高。第二款天線為陣列結合頻率選擇表面(FSS)之天線設計，應用頻帶為WRC 5G C-Band (3.4 – 3.6 GHz)。此款天線上層與下層材質皆使用FR
4，上層為2 X 1陣列天線，其尺寸為95 mm X 37.5 mm X 0.8 mm，下層為帶拒頻率選擇表面，其尺寸為100 mm X 60 mm X 1.6 mm，兩板間距為11.2 mm；帶拒頻率選擇表面應用頻帶為3.4 – 3.6 GHz，且透過結合FSS後，可使得增益最高可達到10.8 dBi，與原本使用反射面相比，除了可達到縮小天線整體高度外，增益最高也可多提高3.9 dB。第三款天線為小型化4埠橋接點天線結合EBG之天線設計，其應用頻帶為WRC 5G C-Band (3.4 – 3.6 GHz)。此天線上層為天線主體，尺寸為50 mm X 50 mm X 1.6 mm，下層的EB
G總體尺寸為66 mm X 66 mm X 1.6 mm，兩板間距為4 mm；天線主體正面採用Z字型單極天線架構設計，與背面的小面積金屬片共振激發出WRC 5G C-Band的頻帶；而EBG單位元之設計為正八邊型，且EBG的應用範圍為3.4 – 3.6 GHz。透過使用EBG與天線主體結合，可以有效降低天線主體與反射面之間的距離，並使得天線增益提高，整體場型向上輻射的效果。