They are defined by sparse parity check matrices, with various construction methods.

LDPC碼定義在稀疏校驗矩陣上日韩欧美亚洲综合一区二区三区，有許多種構(gòu)造方法久操国视频在线观看。

Although the parity check matrix is defined by very sparse matrix, the generator matrix is not.

盡管LDPC碼的校驗矩陣是非常稀疏的网站黄色a，但它的生成矩陣卻并不稀疏黄色电影久久久，這使得其編碼復(fù)雜度往往與其碼長的平方成正比国产偷自久久精品久久。

The life of the Pathan is thus full of interest; and his valleys, nourished alike by endless sunshine and abundant water, are fertile enough to yield with little labor the modest material requirements of a sparse population.

生活就是這樣充滿興趣的pathanav最新资源；他峽谷日韩在线丝袜福利网站大全、營養(yǎng)豐富的水和陽光一樣沒完沒了，有足夠肥沃的產(chǎn)量很少謙虛勞動人口特別稀少的物質(zhì)需求特黄特色A级无码毛片视频。

2The life of the Pathan is thus full of interest; and his valleys, nourished alike by endless sunshine and abundant water, are fertile enough to yield with little labour the modest material requirements of a sparse population

因此久久精品国产品国产精，阿富汗人的生活充滿了吸引力；他們的生存的土地肥沃久久网一区，充滿了陽光與水玖玖玖免费视频，幾乎不需要怎么耕作勞動就能養(yǎng)活人數(shù)并不多的阿富汗人。

Educated youth who are well aware of the vitality of a strong broad bean, sugar pea sparse if we find the time, they readily took out a few grains of beans sown in thin ridge, on the line.

知青們都心知肚明蠶豆的生命力很強嘿咻嘿咻免费无码专区在线播放，如果發(fā)現(xiàn)豆苗稀稀落落時久久久久久久精品免费久久，就隨手掏出幾粒蠶豆播撒在瘦瘦的田埂上，就行了美女被操到喷在线看。

I see each shining pellet in the space with the sparse arrangement.

我看見一個個發(fā)亮的小球在空間內(nèi)稀疏地排列著内射网站。

A thickset man with piggish eyes and sparse blond hair, he looked nothing like Harry Potter.

他是一個粗壯的男人，有著豬一樣的眼睛和稀疏的金色頭發(fā)又长又大又硬黄色，他看起來一點也不像哈利黄片毛片av。

Aim To study the numerical solving process for the large sparse matrix linear equations. Methods To realize the above aim, program developing language C++, cross list data storage structure, the special method of pivoting and elimination of pivot element were adopted.

大型稀疏矩陣線性化方程組的數(shù)值求解問題，廣泛存在于工程實踐尤其是計算機(jī)仿真領(lǐng)域亚洲一区精品黄，如水力管網(wǎng)計算 [1] 一级做a爰片久久毛片A片美国、電力系統(tǒng)的大型導(dǎo)納矩陣計算、高階偏微分方程的數(shù)值求解[2 ] 以及鑄件充型過程與凝固過程的數(shù)值模擬等欧美性爱在线播放久草。

It seeds area and total yield are big in our country.This study combined Hubei province item of the project of country important food foisori science and technology. It considered the difference of climate character国产片黄片A片、 cultivate system and plant habit in the southeast of Hubei、 in the middle of Hubei亚洲一级av无码毛片精品、 in the northwest of Hubei and in the Jianghan plain four rice plant areas. It had formed " double season rice three ripe high yield in the southeast of Hubei mode "一级欧美性爱网站、" sparse、 manipulative黄色AⅤ、 weight middle season rice high yield in the middle of Hubei mode"天天黄色视频入口、" zero till light-duty high yield plant in the Jinghan plain mode" and " cover with ground film wet in all process in the northwest of Hubei plant mode" four adaptive plant modes base on present plant modes.

本研究結(jié)合糧食豐產(chǎn)科技工程國家重大科技專項湖北項目的部分研究內(nèi)容，針對湖北省鄂東南18岁网站。、鄂中插逼网址、江漢平原及鄂西北四大稻作區(qū)不同生態(tài)氣候特點、耕作制度和種植習(xí)慣久久国产综合精品久久国产，在現(xiàn)有栽培技術(shù)的基礎(chǔ)上組裝集成"鄂東南雙季稻三熟高產(chǎn)模式"亚洲国产精品一区二区玖玖爱、"鄂中稀、控久久无码中文字幕久婷婷、重中稻高產(chǎn)模式"唐人呦一呦二在线播放、"江漢平原免耕輕型豐產(chǎn)栽培模式"及"鄂西北全程地膜覆蓋濕潤栽培模式"四種配套栽培技術(shù)模式，分別在武穴特级a级黄色网站、隨州7777视频、沙洋十八禁止观看黄色网站、房縣等四地進(jìn)行大田試驗示范。

Some new method is presented in this paper: A. An Integrated parameters computation method to analysis asynchronous operation of the turbine generator is given, including the equivalence of short circuit and open circuit of field windings, deducing boundary condition of 〓 method and computing frequency parameters. B. A new memory structure for sparse complex matrix and a PCCG method based on it are introduced to save memory and computation time. C. An equivalent method of vacuum is presented, and effectively eliminate the effect of corner point and accelerate convergence of PCCG method. D. Coupling the computation of electromagnetic and temperature field is discussed and model for computing temperature field of the turbine generator rotor at asynchronous operation is built.

文中提出了以下新方法：(1)在失磁異步運行轉(zhuǎn)子三維渦流場計算中提出了完整的參數(shù)計算方法黄色网站入口直接看，其中包括勵磁繞組開免费黄色网站有、短路的等效，〓法邊界條件的推導(dǎo)及頻率參數(shù)的計算方法a网址在线观看；(2)提出了鐵心內(nèi)空氣域的等效方法日本在线中文字幕播放，有效地解決了開槽引起的角點奇異問題，并提高了方程組的迭代收斂速度在线观看黄网址；(3)在〓法有限元模型中欧美人与动性行为高清视频，創(chuàng)立了一種能節(jié)約內(nèi)存、提高計算速度的壓縮存儲矩陣格式玖玖中文国产，并建立了基于該格式的方程組解法午夜中文不卡理伦片；(4)提出了渦流電磁場和溫度場兩種不同場計算的合理結(jié)合方法，建立了轉(zhuǎn)子三維穩(wěn)態(tài)和時變溫度場的有限元計算模型黄色a片录像。