<link rel="stylesheet" href="styles.cf390c6bfbe7555f.css">

Browsing by Issue Date, starting with "2015-04-10"

Filter results by year or month
Now showing 1 - 20 of 22011
  • Thumbnail Image
    Item type:Item,
    The frequency of CFVD speed report for highway traffic
    (2015-04-10)
    Chang, Ming-Feng
    ;
    Chen, Chi-Hua
    ;
    Lin, Yi-Bing
    ;
    Chia, Chung-Yung
    ;
    資訊工程學系
    The control signals of cellular networks have been used to infer the traffic conditions of the road network. In particular, consecutive handover events are being used to estimate the traffic speed. During traffic congestion, consecutive handover events may be rare because vehicles move slowly, and thus very few or no speed reports would be generated from the congested area.However, the traffic speed report rate during traffic congestion has not been investigated in the literature. In this paper, we present an analytic model to estimate the speed report rate from cellular network signaling in steady traffic conditions, that is, the traffic speed and flow are assumed constant. Real field trial data were used to validate our analytic model. In addition, computer simulations were conducted to study how speed reports are generated in dynamic traffic conditions when traffic speed and flow change rapidly. Our study indicates that in a typical cell of length 1.5km with a typical expected call holding time of 1min, no speed report was generated from a congested three-lane highway. Our study demonstrates that the lack of speed reports from consecutive handover events during rush hours indicates severe traffic congestion, and new methods that can estimate traffic speed from cellular network data during severe traffic congestion need to be developed. Copyright (c) 2013 John Wiley & Sons, Ltd.
  • Thumbnail Image
    Item type:Item,
    Dual-band voltage controlled oscillator with optimized Gm
    (2015-04-10)
    Huang, Zhe-Yang
    ;
    Chen, Chun-Chieh
    ;
    Hung, Chung-Chih
    ;
    電機資訊學士班
    ;
    Undergraduate Honors Program of Electrical Engineering and Computer Science
    A differential VCO with differential push-push frequency doubler for dual-band application is proposed. The dual-band VCO (DB-VCO) adopts the tunable -Gm to optimize the wide tuning start-up condition. The proposed DB-VCO was implemented in 180-nm CMOS process. The DB-VCO provides a fundamental center frequency at 4.476 GHz and a double frequency at 8.985 GHz. A tuning range of fundamental frequency is 1.125 GHz (3.928 GHz-5.053 GHz), and a tuning range of the double frequency is 2.257 GHz (7.856 GHz-10.113 GHz) with maximum control voltage of 1.0 V can be achieved. The phase noise is -96.0 dBc/Hz at 1 MHz offset from center of the DB-VCO fundamental frequency. And the phase noise is -86.4 dBc/Hz at 1 MHz offset from center of the DB-VCO double frequency. The power dissipation of the DB-VCO core is 6.6 mW through 1.0 V supply voltage. The active area is 0.09 mm(2).
  • Thumbnail Image
    Item type:Item,
    具有二氧化碳捕集功能之微藻養殖裝置及方法
    (2015-04-11)
    張嘉修
    ;
    林志生
    ;
    陳俊延
    ;
    高千雅
    本發明為一種直立管柱、可聯結式微藻類養殖系統及其實施方法。該養殖系統係具有複數個直立設置之透明管柱，這些單一管柱可透過其上之歧管結構一起串聯或並聯運作，管柱底部設有曝氣裝置，用於通入含二氧化碳氣體，利用氣舉方式攪動、循環管柱內所養殖的微藻液，使系統於生產微藻生物質的過程中，同時達到二氧化碳的減量。
  • Thumbnail Image
    Item type:Item,
    甜點產業　甜蜜崛起
    (2015-04-12)
    張薇
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    多元食品的流入，讓「吃」不再只是求溫飽，更多了娛樂與傳遞文化的功能。
  • Thumbnail Image
    Item type:Item,
    衝突鑽石　最昂貴的代價
    (2015-04-12)
    陳怡均
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    衝突鑽石，隱含著非洲大陸上經歷資源掠奪後留下的血腥記憶。
  • Thumbnail Image
    Item type:Item,
    總編輯的話
    (2015-04-12)
    張婷芳
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    本周喀報為二一一期，共有18篇稿件。本期共有新聞圖表6則、動畫4則、照片1則與文字7則。
  • Thumbnail Image
    Item type:Item,
    色彩心理學　生活應用大
    (2015-04-12)
    李恬芳
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    紅色、藍色、黃色、綠色，色彩心理學在一定程度上左右著人們的決策。
  • Thumbnail Image
    Item type:Item,
    過往足跡　臺灣古蹟　
    (2015-04-12)
    包金
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    簡述臺灣古蹟如何分類，以及各地的古蹟多寡。
  • Thumbnail Image
    Item type:Item,
    美感計畫　翻轉臺灣教育
    (2015-04-12)
    謝宜寧
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    張柏韋，美感計畫的發起人之一。他們推出全臺第一本具有美學觀念的教科書，改革臺灣的美學教育。
  • Thumbnail Image
    Item type:Item,
    程剛　心細的壺雕高手
    (2015-04-12)
    陳珮容
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    程剛二十多年的雕刻經驗，無論在雕刻動物、人物，都能掌握神韻及景物的層次，即便是背景的樹葉依舊不含糊。
  • Thumbnail Image
    Item type:Item,
    跨時代攻殼　反思未來科技
    (2015-04-12)
    侯怡安
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    押井守於一九九五年的電影【攻殼機動隊】，除故事本身對於靈魂和軀體的哲學性探討外，其跨時代意義深遠。
  • Thumbnail Image
    Item type:Item,
    四天　四傻　闖香港
    (2015-04-12)
    陳思寧
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    一股衝動、一種勇氣，為四個傻瓜在年輕的歲月裡，寫下一筆截然不同的體會。
  • Thumbnail Image
    Item type:Item,
    科技巨頭佈局　物聯網發展
    (2015-04-12)
    顏晟宇
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    兩大科技巨頭Google和Apple皆為物聯網規劃出未來佈局，同時也反映出市場的發展趨勢。
  • Thumbnail Image
    Item type:Item,
    公平貿易　食物的旅行
    (2015-04-12)
    鄭青青
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    公平貿易已行之有年，但其中的運作機制與臺灣公平貿易商你真的都清楚嗎？
  • Thumbnail Image
    Item type:Item,
    植物之死與女孩之生
    (2015-04-12)
    林霈楨
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    落葉覆蓋了整座城市，他的盆栽內也總是一片死寂，有天，一位女孩送來紅豆。
  • Thumbnail Image
    Item type:Item,
    旅日風潮　來龍去脈面面觀
    (2015-04-12)
    簡品心
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    日本由於放寬免簽證條件、日幣貶值與推行免稅新制等原因，訪日人數日益攀升。
  • Thumbnail Image
    Item type:Item,
    馬德里不思議　南歐初體驗
    (2015-04-12)
    杜以翔
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    曾經到過西班牙旅行，雖然時間隔了一段時間了，仍無法忘記當時的感受與體會，懷念當時的南歐風情。
  • Thumbnail Image
    Item type:Item,
    臺北世大運　全民矚目
    (2015-04-12)
    郭穎慈
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    有「小奧運」之稱的世界大學夏季運動會將於二○一七年在臺北展開，主辦單位的一舉一動，都將受到所有人的檢驗。
  • Thumbnail Image
    Item type:Item,
    多元取材　遊戲故事多樣化
    (2015-04-12)
    許翔
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    一個成功的遊戲，除了畫風、音效等因素以外，如何與故事結合，或增加遊戲的故事性也是一大重點。
  • Thumbnail Image
    Item type:Item,
    愛護動物　領養不棄養
    (2015-04-12)
    洪雯倩
    ;
    Department of Communication and Technology
    ;
    傳播與科技學系
    在臺灣，流浪動物的數量相當地多，既然飼養了就不應該丟棄，多愛護動物，就能少點傷害。