20080329

20080327

太行发动机性能数据与外国主力战机的发动机对比

太行发动机性能数据与外国主力战机的发动机对比

太行发动机性能数据与外国主力战机的发动机对比

20080325

米格-29K/KUB

米格-29K-1

米格-29K-2

 

米格-29K/KUB是在米格-29战斗机基础上发展的一种舰载战斗机,与米格-29的其它型别相比,米格-29K/KUB加装了着舰拦阻钩并采用了折叠机翼以适应舰载的需要。同时,该机性能也得到改进,增加了燃油及武器携载量,提高了可靠性,使用寿命也延长了两倍。该机装备的雷达为Phazotron公司研制的Zhuk-ME多模式雷达,此外还装备了红外搜索跟踪系统,并采用了由法国、印度、以色列和俄罗斯合作研制的基于1553B数据总线的航电系统。米格-29K/KUB飞机机体的复合材料用量增加到了15%左右。该机使用的RD-33MK发动机也作了很大改进,采用了电子控制,增加了推力,延长了寿命。

20080321

Google Analytics(Google分析)基准化(测试版)试用





通过这个功能可以得到如下的收获: - 使用基准化功能,将您网站的统计信息与垂直行业做比较。 - 更清楚地了解您网站的整体状况,并发掘出更多可以改善各项网站指标的机会。
当以上的设置都做好后,可以在报告》访问者》基准化,页面中选择垂直行业类别,之后就可以看到自己的网站同本行业其他网站的综合基准数据之间的差距。通常每个类别有不少于100个网站。
通过这样的工具,让站长可以在一定程度上,知道自己的网站在同一行业中还有那些地方可以改进的。



Google Analytics(Google分析)基准化(测试版)看到我的数据除了跳出率高外,其他数据都是低于平均水平的。
对Google Analytics(Google分析)真是越来越喜欢了,比较喜欢时间对比这个功能。



转图不说话










来源 SB 年年有, 今年特别多!

20080320

现代未来步兵发展方向

1、侦察员――会发现敌人的火力点和重要的军事设施,会报坐标,以方便炮兵、飞机、导弹打击目标;

2、通信兵――对发现的情况要会报告,要会使用通信工具;

3、指挥员――要会指挥炮兵、飞机、导弹打击目标;

4、最后才是步兵,将剩余的残敌消灭尽。

20080319

logo-你喜欢吗?

logo3

 

 

2008_03_10_1205151697822273

2008_03_10_1205151843822283

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期待你的支持contact#itofly.com

20080315

法新社的一条新闻China says 10 killed in Tibet, security tight

BEIJING (AFP) - China said Saturday that 10 people had been burnt to death during unrest in Lhasa, as the military locked down the Tibetan capital amid fierce international scrutiny ahead of the Beijing Olympics.

Witnesses said tanks and armoured vehicles were out in force in Lhasa on Saturday, a day after the worst protests against China's controversial rule in the vast, mountainous region in nearly 20 years.

The state-run Xinhua news agency said 10 people had been left dead in the unrest, citing government officials from Tibet as blaming "mobs" for the violence.

"The victims are all innocent civilians, and they have been burnt to death," Xinhua said. It said no foreigners had been killed.

However the Tibetan government-in-exile warned the toll could be much higher, saying it had "unconfirmed reports" of about 100 deaths as it called on the United Nations to stop "human rights violations" in Tibet.

China's top official in Tibet, a vast region formally annexed by the country in 1951, said the protests were part of a "separatist" movement that authorities would not allow to succeed.

"The plot of the separatists will fail. We will challenge them firmly, according to law," the chairman of the Tibet government, Qiangba Puncog, told reporters in Beijing on the sidelines of China's annual parliamentary session.

Tibetans throw stones at army vehicles as a car burns on a street in Lhasa
©AFP

"This is very clear: This is a separatist Dalai Lama clique, inside and outside the country."

The Dalai Lama, Tibet's Buddhist spiritual leader, called on China to "stop using force" and rejected allegations that he and his government-in-exile in neighbouring India were behind the uprising in Lhasa.

"These protests are a manifestation of the deep-rooted resentment of the Tibetan people," he said. "Unity and stability under brute force is at best a temporary solution."

A map showing Lhasa in Tibet where troops have surrounded the three biggest monasteries
©AFP/Graphic

Earlier, Xinhua said many police officers had been badly injured in clashes and that rioters had wielded "backpacks filled with stones and bottles of inflammable liquids, some holding iron bars, wooden sticks and long knives."

A Chinese tour operator and other people in Lhasa contacted by AFP said the tanks and armoured personnel carriers were patrolling the city on Saturday.

"There are tanks and armed soldiers on the streets. We have been told to stay in our rooms... the city is shut down," Wu Yongzhe, the tour organiser, said by phone.

The Dalai Lama
©AFP/File - Manan Vatsyayana

Wu, other tour operators and travellers said Tibet had been closed to foreign tourists.

Tibet, a mountainous region that includes Mount Everest and is more than twice the size of France, has been a flashpoint issue for China's Communist leadership ever since it came to power in 1949.

Communist forces were sent into Tibet in 1950 to "liberate" the region, with China's official rule beginning a year later.

Tibet has taken on greater importance in the run-up to the Olympics in August, which the country's leaders hope will be a chance to show off China's rapid transformation into a modern economic power to the rest of the world.

Tibetan rights groups have vowed to pile intense pressure on Beijing over its rule of the region ahead of the Games, and any perceived rights abuses now would prove unwelcome news for the Chinese leadership.

The protests are the biggest since 1989, when Chinese President Hu Jintao -- who was on Saturday given a second five-year term -- was the Communist Party chief of Tibet.

A convoy of Chinese military trucks in Lhasa
©AFP

Hollywood star Richard Gere, one of many Western celebrities who have been vocal in their support for the Tibetan cause, called for a boycott of the Olympics if the Chinese leadership mishandled the situation.

Chinese censors blacked out Western media reports about the developments in Tibet on Chinese television on Friday, and independent verification of the news from the region has been difficult.

But even official Chinese accounts have indicated the protests began Monday, when Tibetans around the world marked the anniversary of a 1959 uprising that was put down with force and led the Dalai Lama to flee into exile.

Those protests, reportedly begun by Buddhist monks, grew in the following days before erupting into anti-Chinese rioting on Friday.

Chinese-owned shops, offices and restaurants were smashed and burned by demonstrators.

Footage broadcast on Chinese television showed rioters destroying property in Lhasa, with the newsreader saying the Dalai Lama was responsible.

The unrest also spread outside Lhasa, with monks leading a rally of up to 4,000 people in Xiahe, Gansu province, the site of one of Tibetan Buddhism's most important monasteries, said the Free Tibet Campaign, an activist group.

The United States and Britain expressed concern over the violence, with the White House calling on Beijing to "respect Tibetan culture."

Rights groups allege that Beijing encourages ethnic Chinese to move into Tibet to culturally take over the region, a process made much easier by the government opening a new rail line to Tibet in 2006.

20080313

精彩极光图片

产生极光的原因是来自大气外的高能粒子(电子和质子)撞击高层大气中的原子的作用。这种相互作用常发生在地球磁极周围区域。现在所知,作为太阳风的一部分荷电粒子在到达地球附近时,被地球磁场俘获,并使其朝向磁极下落。它们与氧和氮的原子碰撞,击走电子,使之成为激发态的离子,这些离子发射不同波长的辐射,产生出红、绿或蓝等色的极光特征色彩。极光一方面与地球高空大气和地磁场的大规模相互作用有关,另一方面又与太阳喷发出来的高速带电粒子流有关,这种粒子流通常称为太阳风。由此可见,形成极光必不可少的条件是大气、磁场和太阳风,缺一不可。形成极光的能量是一种地球磁场和太阳磁场相混合的特殊磁场。科学家们称这种磁场为“磁索”,这是因为这种磁场的结构类似于相互交织的绳索。在进入地球上层大气之前,太阳风粒子就是沿着这条“绳索”运动的。在春分和秋分两节气时期,地球磁场处于与这条绳索“接通”的最佳状态,因此,春秋两季人们最容易欣赏到美妙的极光。

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I to Fly

I to Fly

I to Fly

I to Fly

I to Fly

I to Fly

I to Fly

 

I to Fly

I to Fly

http://itofly.com 军事 航空航天飞行 博客 I to fly

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20080312

F35图片

F-35垂直起飞全过程
F-35垂直起飞全过程,注意偏转向下的尾喷口

F35
F-35的迎头雷达截面积非常小,具有优秀的隐形能力

00616450

100342495

http://itofly.com 军事 航空航天飞行 博客 I to fly

_______________________________________________________________________

Itofly.com欢迎大家订阅本站-一个关于军事的、以航空航天为特色的Blog

20080311