cosmordinary

In this infinite cosmos we have only one life each. A life in this infinite cosmos is just like a dust in the world. Born by chance and die in necessity. Feeble life and boundless world, two facts we face. Even if you spend your whole life solving them. You will get nothing. - 1998

Wednesday, September 28, 2005

China will das Internet noch schärfer kontrollieren

China will das Internet noch schärfer kontrollieren
26.09.2005 um 18:02 Uhr


MÜNCHEN (COMPUTERWOCHE) - Das chinesische Informationsministerium hat Regeln für die Veröffentlichung von Informationen im Internet bekannt gegeben. Danach sind der staatlichen Willkür mehr oder weniger Tür und Tor zur Verfolgung anders Denkender geöffnet.

Wie die staatliche Nachrichtenagentur Xinhua schreibt, sind solche Artikel von den Seiten chinesischer Internet Service Provider (ISP) oder von Medien gebannt, die die Staatssicherheit unterminieren könnten oder die Staatsgeheimnisse aufdecken würden. Auch sind Artikel verboten, die die Einheit des Landes gefährden oder die die Reputation Chinas in Mitleidenschaft ziehen könnte. Informationen, die ferner nicht im Interesse Chinas sind, unterliegen ebenfalls einem Veröffentlichungsverbot. Schließlich sind Informationen im Internet verboten, die den sozialen Frieden und die innere Stabilität stören könnten. Unter Veröffentlichungsverbot fallen schließlich auch noch pornografische Inhalte und Gewaltdarstellungen.

Die jetzt vom chinesischen Kabinett verabschiedeten Regeln wurden auf den Seiten von Xinhua veröffentlicht. Die Nachrichtenagentur schrieb, dass jede Website, die gegen diese Regeln verstoße, geharnischte Maßnahmen zu befürchten habe bis hin zur Schließung der Seite. (jm)

Sunday, September 18, 2005

Mona Lisa Smile (2003)

Memorable Quotes from
Mona Lisa Smile (2003)
Betty Warren: Don't disregard our traditions just because you're subversive.
Katherine Watson: Don't disrespect this class just because you're married.
Betty Warren: Don't disrespect me just because you're not.
Katherine Watson: Come to class, do the work, or I'll fail you.
Betty Warren: If you fail me, there will be consequences.
Katherine Watson: Are you threatening me?
Betty Warren: I'm educating you.
Katherine Watson: That's my job.

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Katherine Watson: I thought that I was headed to a place that would turn out tomorrow's leaders, not their wives.

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Katherine Watson: Look beyond the paint. Let us try to open our minds to a new idea.

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Katherine Watson: I don't think I can go a year without a hot plate.

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Betty Warren: She's smiling. Is she happy?
Mrs. Warren: The important thing is not to tell anyone.
Betty Warren: She looks happy. So, what does it matter?
Mrs. Warren: Don't wash your dirty laundry in public.

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[last lines]
Betty Warren: [in Betty's last editorial] Not all who wander are aimless. Especially not those who seek truth beyond tradition, beyond definition, beyond the image.
Taxi Driver: Get the hell out of the way.
Betty Warren: I'll never forget you.

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Betty Warren: Dear Betty, I came to Wellesley because I wanted to make a difference. But to change for others is to lie to yourself. My teacher, Katherine Watson, lived by her own definition and would not compromise that, not even for Wellesley. I dedicate this, my last editorial, to an extraordinary woman, who lived by example and compelled us all to see the world through new eyes. By the time you read this, she'll be sailing to Europe, where I know she'll find new walls to break down, and new ideas to replace them with.
[snapshot]
Betty Warren: I've heard her called a quitter for leaving and aimless wanderer. But not all who wander are aimless, especially those who seek truth beyond traditions, beyond definition, beyond the image. I'll never forget you.

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Betty Warren: [in Betty's second editorial] Wellesley girls who are married have become quite adapted at balancing their obligations. One hears such comments, as - I'm able to bast the chicken with one hand and outline the paper with the other. While our mothers were called to workforce for Lady Liberty. Nay obligation to reclaim our place in the home, bearing the children that will carry our traditions into the future. One must pause to consider why Miss Katherine Watson, instructor in the art history department has decided to declare war on the holy sacrament of marriage. Her subversive and political teachings encourage our Wellesley girls to reject the roles they were born to fill.

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Joan Brandwyn: It was my choice... not to go. He would have supported it.
Katherine Watson: But you don't have to choose.
Joan Brandwyn: No, I have to. I want a home; I want a family, that's not something I'll sacrifice.
Katherine Watson: No-one's asking you to sacrifice that, Joan, I just want you to understand you can do both.
Joan Brandwyn: Do you think I'll wake up one morning and regret not being a lawyer?
Katherine Watson: Yes, I'm afraid that you will.
Joan Brandwyn: Not as much as I regret not having a family, not being there to raise them. I know exactly what I'm doing and it doesn't make me any less smart.
[Katherine looks down]
Joan Brandwyn: This must seem terrible to you.
Katherine Watson: I didn't say that.
Joan Brandwyn: Sure you did. You always do. You stand in class and tell us to look beyond the image, but you don't. To you a housewife is someone who sold her soul for a center hall colonial. She has no depth, no intellect, no interests. You're the one who said I could do anything I wanted. This is what I want.
Katherine Watson: [hugs Joan] Congratulations. Be happy.

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Charlie Stewart: My parents say my future is right on the horizon.
Connie Baker: Tell them the horizon is an imaginary line that recedes as you approach it.

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[first lines]
Betty Warren: [voiceover] All her life, she had wanted to teach at Wellesley College. So, when a position opened in the Art History department, she pursued it single-mindedly until she was hired. It was whispered that Katherine Watson, a first-year teacher from Oakland State, made up in brains what she lacked in pedigree. Which was why this bohemian from California was on her way to the most conservative college in the nation.

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Staunton's Secretary: I was in California once. How do you get any work done with all that sunshine?
Katherine Watson: We tan in class.

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Giselle Levy: [in reference to the husband in etiquette class] Whatever you do, don't put the boss's wife next to your husband.
Betty Warren: Why not?
Giselle Levy: She's screwing him.

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Connie Baker: And, it was perfect, romantic, we stayed up all night, talking.
Joan Brandwyn: [to Giselle] You're late, what happened to Sunday brunch?
Giselle Levy: We stayed up all night, too. Not talking.
Connie Baker: The psychoanalyst again.
Giselle Levy: Divine exhaustion.

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Katherine Watson: [about Betty's Wedding] This is quite the event. I can't believe I was invited.
Bill Dunbar: Well, look around you.
[beat]
Bill Dunbar: Who wasn't?

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Betty Warren: Does he charge you... for sex? Because at the rate you're going, you could make a fortune.


-artist: nat king cole
-peak billboard position # 1 for 8 weeks in 1950
-words and music by jay livingston and ray evans
-academy award winner from the film captain carey, u.s.a starring alan ladd

Mona lisa, mona lisa, men have named you
You’re so like the lady with the mystic smile
Is it only ’cause you’re lonely they have blamed you?
For that mona lisa strangeness in your smile?

Do you smile to tempt a lover, mona lisa?
Or is this your way to hide a broken heart?
Many dreams have been brought to your doorstep
They just lie there and they die there
Are you warm, are you real, mona lisa?
Or just a cold and lonely lovely work of art?



Do you smile to tempt a lover, mona lisa?
Or is this your way to hide a broken heart?
Many dreams have been brought to your doorstep
They just lie there and they die there
Are you warm, are you real, mona lisa?
Or just a cold and lonely lovely work of art?

Mona lisa, mona lisa

Saturday, September 17, 2005

market of auto spare parts

My brother took me to a huge market of auto spare parts in the very southeast part of Shanghai, attempting to educate me on this topic. It is very Chinese market with booths and pigeonholes along the street. Dirty of course, but not as stirring as I have expected.

Today I find a very annoying fact: blogger is blocked by Chinese Government. I can not access my blog, but the control and edit interface, from China. Have to deal with this problem soon.

met Helmut in Renaissance Pudong

He came for ZOW-exhibition from 12.09 – 17.09, a German furniture exhibition. switched his job from Roxan GmbH (bad performance) to Renolit AG (second biggest in its industry). The same job as he has practiced for more than 20 years: selling furniture foils. And he looks exactly like 4 year before: seemingly an old German Opa, but actually tough, energetic and humorous. Now he has 7 sales under his wings and is reponsible for 45 million euro anunal revenue. Not as 4 year ago when we talked about trivia, we discussed a lot about German politics, social problems, those of China and our intercultural experience. Although he has keeping coming to China 2 or 3 times every year, I dont think he is fully aware of the many social problems of China. Only shining fridge has been shown to him.

I asked him of advices for being a good sales. Somehow he can not image what kind of job I can do with my M. Sc. in cognitive science. On the one hand this is not an engineering or BM degree, on the other hand, I think his imagination is more or less confined by his age and occupation. He advised me to talk to his agency, Ms. Chen Huiling. Huiling and his husband founded a trading company after their diplom in Uni Stuttgart. Till now the business with c.a. 30 people is running pretty well. At the moment they only need salesman for China. We chatted for 4 hours. He is the nicest German I have ever met. He is coming this November to Beijing. I hope I can met him again.

Saturday, September 03, 2005

la marche de l'emper VS. deep blue

企鹅:饥饿是黑的,吃饱了是白的,我们两面都是黑的,所以我们总是饥饿. All those who like the movie "la marche de l'empereur" should go and watch the documentary "deep blue" filmed by BBC in 2004. It not only beats The Day After Tomorrow hands down, but March of the Penguins as well (IMHO).

http://www.marchofthepenguins.com
http://www.bbc.co.uk/films/2004/06/02/deep_blue_2004_review.shtml

男生追女生的数学建模分析

问题分析

男生追女生,对男生来说最重要的是学习、爱情两不误。因此我们引进男生的学业成绩函数Y(t)。

首先,我们不考虑男生的追求攻势,则影响该函数的因素主要是两个人的关系程度。为了便于分析,我们将两人的关系简化为女生对该男生的疏远度,于是引入疏远度函数X(t)。

问题就转化为求解Y(t)和X(t)的相互作用关系。利用微分,很容易就可以求出两者的关系。但现实中男生可能会对该女生发起一轮轮的追求攻势,因此还要考虑到追求攻势对模型的影响。而追求攻势又与女生的疏远度有关,可以简化地将两者看成是正比关系。将追求攻势加入到模型中,就可以找出攻势与Y(t)和X (t)的关系了。

模型假设

1、t时刻A君的学业成绩为Y(t);

2、t时刻B女对A君的疏远度为X(t);

3、当A君没开始追求B女时B女对A君的疏远度增长(平时发现的A君的不良行为)符合Malthus模型,即dX/dt=aX(t)其中a为正常数。

4、当Y(t)存在时,单位时间内减少X(t)的值与X(t)的值成正比,比例常数为b,从而 dX(t)/dt=aX(t)-bX(t)Y(t)。

5、A君发起对B女追求后,立即转化为B女对A君的好感,并设定转化系数为 α,而随着的A君发起对B女的追求,A君学业的自然下降率与学业成绩成正比,比例系数为e。于是有dY(t)/dt=αbX(t)Y(t)-eY(t)。

模型构成

由假设4和假设5,就得到了学业与疏远度在无外界干扰的情况下互相作用的模型:

{dX(t)/dt=aX-bXY;dY(t)/dt=cXY-eY} 其中c=αb. (1)

这是一个非线性自治系统,为了求两个数X与Y的变化规律,我们对它作定性分析。令{aX-bXY=0;cXY-eY=0} 解得系统(1)的两个平衡位置为:O(0,0),M (e/c,a/b)。从(1)的两方程中消去dt,分离变量可求得首次积分:

F(X,Y)=cX-dln|X|-aln|Y|=k (2)

容易求出函数F(X,Y)有唯一驻点为M(e/c,a/b)。再用极值的充分条件判断条件可以判断M是F的极小值点。同时易见,当X→∞(B女对A君恨之入骨)或Y→∞ (A君是一块只会学习的木头)时均有F→∞;而X→0(A君作了变形手术,B女对他毫无防备)或Y→0(A君不学无术,丝毫不学习)时也有F→∞。由此不难看出,在第一象限内部连续的函数z=F(X,Y)的图形是以M为最小值点,且在第一卦限向上无限延伸的曲面,因而它与z=k(k>0)的交线在相平面 XOY的投影F(X,Y)=k (k>0)是环绕点M的闭曲线簇。这说明学业成绩和疏远度的指数成周期性变化。

结果解释

从生态意义上看这是容易理解的,当A君的学习成绩Y(t)下降时,B女会疏远 A君,疏远度X(t)上升;于是A君就又开始奋发图强,学习成绩Y(t)又上升了。于是B女就又和A君开始了来往,疏远度X(t)又下降了。与B女交往多了,当然分散了学习时间,A君的学习成绩Y(t)下降了。

然而我们可证明,尽管闭轨线不同,但在其周期内的X和Y的平均数量都分别是一常数,而且恰为平衡点M的两个坐标。事实上,由(1)的第二个方程可得: dY/Ydt=cX- e,两端在一个周期时间T内积分,得:

∫(dy/Ydt)dt=c∮Xdt-dT (3)

注意到当t经过一个周期T时,点(X,Y)绕闭轨线运行一圈又回到初始点,从而:∫(dY/Ydt)dt=∮dY/Y=0。所以,由(3)式可得:(∫Xdt)/T=e/c。

同理,由(1)的第一个方程可得:(∫Ydt)/T=a/b。

模型优化

考虑到追求攻势对上述模型的影响。设追求攻势与该时刻的疏远度成正比,比例系数为h,h反映了追求攻势的作用力。在这种情况下,上述学业与疏远度的模型应变为:

{dX/dT=aX-bXY-hX=(a-h)X-bXY;dY/dt=cXY-eY-hY=cXY-(e+h)Y} (4)

将(4)式与(1)式比较,可见两者形式完全相同,前者仅是把(1)中X与Y的系数分别换成了a-h与e+h。因此,对(4)式有

x’=(∫Xdt)/T=(e+h)/c,y’=(∫Ydt)/t=(a-h)/b (5)

利用(5)式我们可见:攻势作用力h的增大使X’增加,Y’减少。

我们的建议

考试期间,由于功课繁忙,使得追求攻势减少,即h减小,与平时相比,将有利于学业成绩Y的增长。这就是Volterra原理。此原理对男生有着重要的指导意义:强大的爱情攻势有时不一定能达到满意的效果,反而不利与学业的成长;有时通过慢慢接触,慢慢了解,再加上适当的追求行动,女生的疏远度就会慢慢降低。学习成绩也不会降低!