Results 31 to 40 of about 668,524 (158)
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Layered double hydroxides (LDHs) are attractive non‐noble catalysts for overall water splitting (OWS), yet their hydrogen evolution reaction (HER) activity is often limited by suboptimal *H adsorption and a paucity of accessible sites. Herein, we introduce an oxygen‐vacancy (Ov) engineering strategy to construct ultrathin Ni‐Fe LDH nanosheets ...
Qi Liu +8 more
wiley +1 more source
, 2010 本研究係利用類神經網路在考慮非穩態空氣動力和尾流動力環境下，尋求直昇機 在不同飛行狀態中之最低輸出功率並滿足旋翼葉片最大升力之要求。類神經網路 乃依據生物神經網路訊息傳遞資訊的處理方式並利用巨量的人工神經元加以連結 ，再經由反覆的訓練做出適當的判斷以求得最佳值。研究中結合了旋翼的空氣動 力及尾流動力之耦合系統，並選用Peters的尾流動力理論作為非穩態空氣動力環 境的模擬。研究顯示類神經網路對直昇機旋翼葉片之弦長與扭角的設計有很大的 助益。國科會; 中國航空太空學會 ...
國科會; 中國航空太空學會; 中華民用航空學會 +1 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Lithium‐selenium (Li‐Se) batteries have attracted considerable attention due to their high theoretical specific capacity and the intrinsically good electronic conductivity of selenium. Nevertheless, low active‐material utilization, parasitic side reactions, and sluggish reaction kinetics hinder their practical application.
Yanan Fu +8 more
wiley +1 more source
The study on 3 dimensional unstructured grid generation with bowyer scheme [PDF]
, 2010 研究發現，三維空間非結構性格點生成法常遇到如遮蔽、空洞、邊界破壞、區域外格體去除等問題。Advancing Front Algorithrn 發生空洞格體機會很大，而遮蔽卻大部份發生在BowyerAlgorithm 法上。邊界破壞，區域外格體則多數發生在Bowyer Scheme 生成法中。本文嘗試以Bowyer Algori thm 建立不同外形。Bowyer Algori thm 程序簡單，並擁有加點機制。文章中藉建立四種外彤，證明Bowyer Algori thm 在三維空間上的可行性 ...
宛同; 葉暉 +1 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Atomically dispersed iron–nitrogen–carbon (Fe‐N‐C) catalysts have emerged as promising alternatives for oxygen reduction reaction (ORR) owing to their highly atomic utilization. However, maintaining both Fe atomic dispersion and dense Fe‐Nx sites (typically below 2 wt%) in Fe‐N‐C catalysts is still a key challenge.
Lijuan Wang +6 more
wiley +1 more source
, 2010 這篇文章描述擴散火焰之光學Rayleigh 散射溫度測量法。首先對此光學溫度量測之原理 ,設備以及測量步驟加以說明。根據原理,有效 應用此測量法之最簡單方法是使用特殊的燃料 及助燃劑。實驗結果證明,以此方法所得到之 火焰溫度及分布是非常合理的。 This paper describes an optical Rayleigh scattering temperature measurement in diffusion flames.
Chen, Tseng-Yuan +2 more
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International Journal of Applied Linguistics, Volume 36, Issue 2, Page 979-994, May 2026.ABSTRACT Previous research has established the relationships between motivation, anxiety, teachers’ support, and self‐regulated learning (SRL) in English‐as‐a‐foreign‐language (EFL) learning. Most of the studies, however, have taken a variable‐centered approach in addressing the variable correlations, while learners’ characteristics and variable links ...
Yuhong Jiao, Barry Bai, Jing Li
wiley +1 more source
, 2009 [[abstract]]身體在空間中的移動所帶給主體的影響，不論對經驗主體本身是觀看者或是被觀看者，空間移動的經驗在主體形塑其屬性認同的過程裡扮演了十分關鍵的角色。而且在記敘這些空間移動的過程中都出現極具深刻意涵的空間圖像，增添許多象徵意義。 西方神話傳說或經典文學作品之中不乏空間移動經驗與主體心靈成長相關的敘事；而主體的心靈成長常常也是他的屬性認同形塑的契機之一。譬如希臘神話中的英雄底修斯（Theseus）、傑生（Jason）、波修斯（Perseus）、海克力斯（Hercules）、奧底薩斯 ...
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Thermally driven hydrogenation of CO2 to light olefins (C2=–C4=) using metal oxide‐zeolite tandem catalysts is an effective strategy for achieving carbon neutrality. However, progress in this area is constrained by zeolite pore transport limitations, acid‐site inactivation, and surface carbon poisoning.
Haifeng Tian +10 more
wiley +1 more source
, 2010 本文主要是在探討如何找出一架最適合任務需求的旋翼機, 由於旋翼機在飛行動力或是氣動力上都較定翼機來的複雜, 因此對於整個旋翼機最佳化性能的分析無法很輕易的由傳統的方法來達成。本研究的目的即是依各種不同的任務需求, 依其狀況所需, 經由所撰寫出之電腦程式運算後, 求出最適合任務之旋翼機性能參數, 進而找出符合任務需求之旋翼機來執行任務。中國航空太空學會; 逢甲大學; 經濟部航太工業發展推動小組20130320格式已修正by陸桂英國內19981212~19981212紙本Y臺中 ...
中國航空太空學會; 逢甲大學 +1 more
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