sandia 中文意思是什麼

Most homes in east albuquerque are an easy commute to kirtland afb, sandia laboratories and the city s main business centers, hospitals and airport

空屋率戲劇性地跌落了，在1993年的10月達到1 . 7 %的低值，並且租金增加了。

The scenic drive from the junction of highway 14 and highway 536 to sandia crest on the " turquoise trail " has been designated the sandia national scenic byway

內戰后，英國的定居者們的興趣集中於阿市，不斷地涌進這座城市。

In this paper, the main research works are as follows : 1 ) survey and analysis previous work in auv navigation and summarize : as the cumulate error, the dead - reckoning and inertial navigation systems ca n ' t be used without other modified system ; the acoustic navigation system is used only in small range, and is very expensive. 2 ) two important approaches in geophysical navigation techniques are summarized, one is terrain contour based navigation, this approach is investigated keystone today ; the other is image based navigation, due to no perfect image sensors and image seabed map, this approach has seldom been practised. 3 ) two important terrain contour based navigation algorithms has been applied to auv, one is match algorithm - based terrain contour match ( tercom ) ; the other is kalman filter - based sandia inertia terrain - aided navigation ( sitan )

主要研究內容包括：一、總結分析了當前水下導航的常用方法和不足之處，指出基於航位推算的導航方法，存在著最大的問題就是導航誤差的積累問題，如果沒有修正系統，這種方法很難滿足使用要求；其次指出基於聲學的導航方法，造價昂貴，導航范圍有限，難以滿足自主水下航行器大范圍導航的需求；二、總結了當前水下地形輔助導航的主要技術路線，一是基於地形高程的匹配方法，這是當前研究的重點；二是基於地形圖像的匹配方法，由於缺乏良好的圖像傳感器，和可用的海底圖像地圖，目前這種方法還有待研究發展；三、將兩種地形高程匹配的常用方法應用到自主水下航行器上：以相關演算法為前提的地形輪廓匹配（ tercom ）方法和以卡爾曼濾波為基礎的桑迪亞慣性地形輔助導航（ sitan ）方法，前者演算法簡單可靠，但是導航精度不高，後者雖然精度比較高，但存在著演算法較為復雜、有可能發散和出現奇異值等問題。

The first algorithm is low precise but simple and credible, the second is high precise but complex and incredible. 4 ) developed four kinds of methods aimed to improve precision and credibility of navigation system. the first is parallel sandia inertia terrain - aided navigation ( psitan ) ; the second is tercom + sitan, it can restrain two important disadvantages of sitan ; the third is particle filter - based terrain - aided navigation ( pftan ), the particle filter can reduce the error of navigation ; the last is tercom + pftan, where tercom is looked as monitor to ensure the credibility of navigation system

採用并行sitan方法來提高導航精度，並克服奇異值問題；提出了tercom + sitan方法，綜合利用兩者的優點，在保持sitan導航精度的前提下，有效地克服了sitan的兩個缺點；提出了一種基於連續蒙特卡洛濾波（常被稱為particlefilter ）的地形匹配演算法（ pftan ） ，有效地克服了利用sitan時由於地形隨機線性化帶來的誤差，使導航精度有較大的提高；提出了tercom作為監視器的地形輔助導航思想，並將其應用到連續蒙特卡洛方法上，較大地增加了系統的可靠性和精度。

In january, gm and sandia national laboratories launched a four - year, $ 10 - million program to develop metal hydride storage systems based on sodium aluminum hydride

通用汽車公司與美國山迪亞國家實驗室，於今年1月啟動一項耗資千萬美元的四年期計畫，開發以鈉鋁氫化物為主體的金屬氫化物貯存系統。

The models involved in the winning livermore / sandia bid are certainly good enough to recreate the results of earlier tests ( a trick known as “ hindcasting ” )

招標勝利方利弗莫/桑迪亞實驗室設計的模擬肯定完善得可以再造先前的試驗（被稱為「測試未來」的高招） 。

Engineers at sandia national laboratories created the smallest robot ever ? able to sit on a nickel and propel itself about 20 inches per minute

山迪亞國家實驗室的工程師建造了世上最小的機器人? ?蟑螂大小的坦克，可以停放在一枚一美分硬幣上，速度可達每分鐘六公尺。

Ranging from interstate 25 eastward to the foothills of the sandia mountains, this area is comprised of a variety of neighborhoods

在阿爾伯克基新的房屋的建造從1990以來超過美國國家的平均水平。

Just off the trail on the road to placitas hwy 165 is the first known human habitation in the new word - sandia cave

鐵路的出現- 1880年，鐵路出現在阿市，拉斯維加斯，聖塔菲，和其他一些新墨西哥城市。

New homes are still being developed in these areas including " high desert ", at the south boundary of sandia heights

快速的人口生長為美國新墨西哥州中部大城阿爾伯克基創造了一個澎湃的住房市場。

Neal singer, based in albuquerque, writes about science for sandia national laboratories. he is quite fond of his glasses

現居美國新墨西哥州阿布奎基，是山迪亞國家實驗室的科學記者。他很喜歡自己的眼鏡。

Numerical results are consistent with that of sandia laboratory experiment and agree with that of cth code too. an adaptive mesh refinement under 2d euler structure grid for multi - fluid flow is developed for resolving richtmyer - meshkov, rayleigh - taylor and helmholtz multi - fluid instabilities, and the high resolution interface properties can be obtained

數值模擬多介質流體richtmyer - meshkov ， rayleigh - taylor ， helmholtz界面不穩定性，用levelset函數定義euler坐標系中界面附近網格自適應判據，使得網格剖分更加合理，既能提高計算精度又能節省計算時間。

He started his career at sandia national labs, livermore california, designing high - speed data acquisition systems and distributed computing systems using a myriad of existing legacy code

他的職業生涯開始於加利福尼亞livermore的sandia national labs ，他在那裡使用大量現有的遺留代碼設計高速數據獲取系統和分散式計算系統。