有利于厄爾尼諾發展(弱),潮汐使赤道空氣向兩極流動,可激發地震火山活動和暖空氣活動,有利于低層偏南風的發展,帶來較多水汽,造成部分地方出現大霧天氣(弱)。潮汐組合D:2月27日為月亮赤緯角最小值北緯0.00011度,2月23日為日月大潮,2月26日為月亮遠地潮,三者弱疊加,潮汐強度大,地球扁率變大,自轉變慢,有利于拉尼娜發展(次強),潮汐使兩極空氣向赤道流動,可激發地震火山活動和冷空氣活動(次強)。 http://blog.sciencenet.cn/blog-2277-1213048.html本文為荷蘭代爾夫特理工大學(作者:Justin Stook)的碩士論文,共145頁。 近年來,導航業蓬勃發展。著名的導航服務如TomTom、Garmin和Google navigation,正在主導戶外道路導航市場,這些應用程序能夠確定平台位置這一事實一直吸引著作者。簡單的位置確定在專門的應用程序和功能中得到了進一步利用,例如記錄位置移動並插入多個單元的SportyPal,或者照片的地理標記。因此,這進一步激發了人們研究室內環境定位問題的興趣,因為人們必須超越自己的視線。然而,導航這個詞也可以用來比喻一個人的人生旅程。作為一個人,怎樣才能導航並規劃自己的人生?在人生的道路上,一個人必須通過做出滿足期望和影響你未來的決定,在一個復雜的問題網絡中尋覓自己的方向。決策可能基于過去的經驗和/或知識,沒有“回頭”的選擇,在不可預見的情況下,無論是積極的還是消極的,任何事情都可能嚴重改變人生道路。導航是基于抽象層次的,作者也幾乎朝著另一個方向前進。生活中不可預見的情況迫使一個人選擇一種不同于預期的流動方式,其結果是在本論文的研究項目中投入了大量的時間和精力。作者希望這篇論文是可閱讀和可理解的,希望每個聰明人都應該遵循自己的方向,因此,導航應用程序將有助于做出這些決定。 Navigation has become booming businessrecently. Well-known navigation services錛 such as TomTom錛 Garmin and GoogleNavigation錛 are dominating the market for outdoor錛 road based navigation. The factthat such applications are able to determine a location on a platform hasalways fascinated the author. Simple location determination is further utilizedin specialized applications and functions錛 such as SportyPal錛 which logs themovements and interpolates several units錛 or the geotagging of photos. And so錛this further piqued the interest to investigate matters in the indoorenvironment錛 as one has to look beyond what one sees. However錛 navigation as aword can also be used as a metaphor to describe one man’s life journey. How canone navigate as a human being? On the paths of life錛 one has to navigatethrough a web of complicated matters by fulfilling expectations and by makingdecisions that will influence your future. Decisions might be based on pastexperience and/or knowledge錛 there is no ‘turn back’ option錛 and things mightheavily alter the path of life in unforeseen circumstances錛 both positive andnegative. Navigation is then based on the abstract level. The author錛 too錛almost navigated towards another direction. Unforeseen circumstances in theprivate life forced him to choose a different flow than intended. The result isthis thesis project錛 in which much time and effort has been put. The authorhopes that the thesis is readable and understandable. He hopes that every wiseman should follow his own direction and that as such錛 navigation applicationswill contribute in making those decisions. 1. 引言2. 目標、展望與局限性3. 本文研究的問題4. 傳感器技術5. 定位技術6. 導航7. 基于標準的應用構建8. 涉及的用戶9. 用戶分配:網關服務10. 目錄和地理編碼服務11. 建模與屬性12. 可視化:演示服務13. 導航服務14. 架構:功能與技術設計15. 測量與數據庫16. 位置確定算法17. 相關結果18. 結論19. 反思:討論、局限與建議20. 關于隱私和法律問題的補充說明附錄A 表格與插圖附錄B 背景文獻附錄C 結果更多精彩文章請關注公眾號:,