X*****s
发帖数: 2767 | 1 William %R： Developed by Larry Williams, Williams %R is a momentum
indicator that is the inverse of the Fast Stochastic Oscillator. Also
referred to as %R, Williams %R reflects the level of the close relative to
the highest high for the look-back period. In contrast, the Stochastic
Oscillator reflects the level of the close relative to the lowest low. %R
corrects for the inversion by multiplying the raw value by -100. As a result
, the Fast Stochastic Oscillator and Williams %R produce the exact... 阅读全帖 |
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l*******g
发帖数: 28502 | 2 ☆─────────────────────────────────────☆
lxinzhen (头发3 毫米) 于 (Mon Jul 16 12:31:31 2012, 美东) 提到:
上次讨论自然风景，一部分人反映没有经验，这次说说你最喜欢的城市吧，并简要说明
理由。多于一个也可以，没去过的也可以，世界各地的都可以。
☆─────────────────────────────────────☆
lxinzhen (头发3 毫米) 于 (Mon Jul 16 12:32:19 2012, 美东) 提到:
有照片或者详细介绍的奖励增加
☆─────────────────────────────────────☆
spiritys (流氓兔二号) 于 (Mon Jul 16 12:35:10 2012, 美东) 提到:
顶~~~支持~~！
☆─────────────────────────────────────☆
lxinzhen (头发3 毫米) 于 (Mon Jul 16 12:36:47 2012, 美东) 提到:
你又要写长篇？
... 阅读全帖 |
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l**********1
发帖数: 5204 | 3 2020年前 物理学炸药奖给大亚湾小组的组长的话 实验高能物理这一块就是崛起于世界位于Top Level了。
today's chinese version:
中国发现新的中微子振荡 韩媒惊呼诺奖受冲击
新闻来源: 人民网 于March 13, 2012
//www.6park.com/news/messages/66140.html
----
and March 8 2012 news:
from UC BERKELEY
New discovery is key to understanding neutrino transformations
By Robert Sanders, Media Relations | March 8, 2012
BERKELEY —
A new discovery provides a crucial key to understanding how neutrinos – ghostly particles with multiple
personalities – change identity and may help shed light... 阅读全帖 |
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w******s
发帖数: 16209 | 4 recent occurence:
August 12, 2010: The Omen's creator, Jim Miekka, considered the Omen
officially triggered on this date with 92 and 81 new 52-week highs and lows,
respectively. The McClellan Oscillator was a negative -120.03 and the 10-
week NYSE moving average was rising; the market closed above its open of 50
days prior (May 27). [5]. In the ensuing week, the Omen narrowly missed
confirmation twice (August 13 and 19).
August 20, 2010: According to the Wall Street Journal, the omen was... 阅读全帖 |
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w*********g
发帖数: 30882 | 5 高歌，现任北京航空航天大学能源动力学院动力工程及工程热物理学科一级责任教授，
航空发动机气动热力国防重点实验室副主任，长期从事动力工程、工程热物理及流体力
学领域的教学与科研工作，并在基础科研和多学科的应用技术领域取得了一系列国际领
先水平的创新性科研成果。
他在1984年发明的"沙丘驻涡火焰稳定器"，获国家发明一等奖，钱学森同志称之为"一
项长中国人志气的重要发明"。该成果广泛应用于我国多种军用航空发动机中，取得了
数以亿元计的经济效益，至今仍保有先进水平。本刊记者于今年10月采访了高歌教授，
了解到了他近期从事的一些前沿科研工作的最新进展，尤其是他对龙卷风的研究及其工
程应用价值，让人耳目一新。
高歌教授在采访中提到，传统的航空发动机技术虽然还在不停地改进提高之中，但
受到原理和材料工艺上的限制，已经逐渐逼近了性能发展的极限。目前虽然涌现出一些
新型航空发动机技术，但仍然没有走出依靠压力膨胀过程来实现热功转换的思路。他强
调，人们应该另辟蹊径，寻找其他可用的工作原理。为此，他研究了自然界龙卷风的形
成与强化机制，发明了一项称为"余热增推"的技术，直接利用龙卷旋涡实现热功转换并
提取... 阅读全帖 |
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T**********e
发帖数: 29576 | 6 98年以后竟然没变暖，咋办？研究发现是太平洋变冷造成的，作者指出马上就要恢复变
暖了， 这几年就是turning point，以后变暖会变本加厉。
Cool Pacific Ocean Slowed Global Warming
The Pacific Ocean has been a planetary air conditioner for the past two
decades, but the relief may soon end, a new study finds.
The Pacific and Atlantic oceans undergo decades-long natural oscillations
that alter their sea surface temperatures. These natural cycles flip-flop
between cooler and warmer phases. Over the past 130 years, the tempo of
global warming has revved up or slow... 阅读全帖 |
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N*V
发帖数: 350 | 7 【 以下文字转载自 Military 讨论区 】
发信人: wayofflying (小破熊), 信区: Military
标 题: 人类第一台真空能发动机即将在中国攻关成功
发信站: BBS 未名空间站 (Sat May 14 22:28:25 2011, 美东)
高歌，现任北京航空航天大学能源动力学院动力工程及工程热物理学科一级责任教授，
航空发动机气动热力国防重点实验室副主任，长期从事动力工程、工程热物理及流体力
学领域的教学与科研工作，并在基础科研和多学科的应用技术领域取得了一系列国际领
先水平的创新性科研成果。
他在1984年发明的"沙丘驻涡火焰稳定器"，获国家发明一等奖，钱学森同志称之为"一
项长中国人志气的重要发明"。该成果广泛应用于我国多种军用航空发动机中，取得了
数以亿元计的经济效益，至今仍保有先进水平。本刊记者于今年10月采访了高歌教授，
了解到了他近期从事的一些前沿科研工作的最新进展，尤其是他对龙卷风的研究及其工
程应用价值，让人耳目一新。
高歌教授在采访中提到，传统的航空发动机技术虽然还在不停地改进提高之中，但
受到原理和材料工艺上的限制，已经逐渐逼近了性能发... 阅读全帖 |
|
B*******n
发帖数: 20645 | 8 The Full Stochastics has three parameters:
n specifies the number of periods to use when calculating the initial %K
(fast).
M1 specifies the number of periods over which the %K(full) line is to be
smoothed.
M2 specifies the number of periods used to calculate the %D line.
The Full Stochastic Oscillator is a generalization of the Fast and Slow
Stochastic Oscillators because setting the parameters of the Full oscillator
to (14, 1, 3) is equivalent to the Fast oscillator with parameters... 阅读全帖 |
|
m**d
发帖数: 21441 | 9 【 以下文字转载自 Military 讨论区 】
发信人: wayofflying (小破熊), 信区: Military
标 题: 人类第一台真空能发动机即将在中国攻关成功
发信站: BBS 未名空间站 (Sat May 14 22:28:25 2011, 美东)
高歌，现任北京航空航天大学能源动力学院动力工程及工程热物理学科一级责任教授，
航空发动机气动热力国防重点实验室副主任，长期从事动力工程、工程热物理及流体力
学领域的教学与科研工作，并在基础科研和多学科的应用技术领域取得了一系列国际领
先水平的创新性科研成果。
他在1984年发明的"沙丘驻涡火焰稳定器"，获国家发明一等奖，钱学森同志称之为"一
项长中国人志气的重要发明"。该成果广泛应用于我国多种军用航空发动机中，取得了
数以亿元计的经济效益，至今仍保有先进水平。本刊记者于今年10月采访了高歌教授，
了解到了他近期从事的一些前沿科研工作的最新进展，尤其是他对龙卷风的研究及其工
程应用价值，让人耳目一新。
高歌教授在采访中提到，传统的航空发动机技术虽然还在不停地改进提高之中，但
受到原理和材料工艺上的限制，已经逐渐逼近了性能发... 阅读全帖 |
|
C********g
发帖数: 9656 | 10 【 以下文字转载自 Military 讨论区 】
发信人: wayofflying (小破熊), 信区: Military
标 题: 人类第一台真空能发动机即将在中国攻关成功
发信站: BBS 未名空间站 (Sat May 14 22:28:25 2011, 美东)
高歌，现任北京航空航天大学能源动力学院动力工程及工程热物理学科一级责任教授，
航空发动机气动热力国防重点实验室副主任，长期从事动力工程、工程热物理及流体力
学领域的教学与科研工作，并在基础科研和多学科的应用技术领域取得了一系列国际领
先水平的创新性科研成果。
他在1984年发明的"沙丘驻涡火焰稳定器"，获国家发明一等奖，钱学森同志称之为"一
项长中国人志气的重要发明"。该成果广泛应用于我国多种军用航空发动机中，取得了
数以亿元计的经济效益，至今仍保有先进水平。本刊记者于今年10月采访了高歌教授，
了解到了他近期从事的一些前沿科研工作的最新进展，尤其是他对龙卷风的研究及其工
程应用价值，让人耳目一新。
高歌教授在采访中提到，传统的航空发动机技术虽然还在不停地改进提高之中，但
受到原理和材料工艺上的限制，已经逐渐逼近了性能发... 阅读全帖 |
|
b*******y
发帖数: 4304 | 11 How Do We Know When Voyager Reaches Interstellar Space?
Sept 12, 2013
Artist's concept of Voyager's distances
You Are Here, Voyager: This artist's concept puts huge solar system
distances in perspective. The scale bar is measured in astronomical units (
AU), with each set distance beyond 1 AU representing 10 times the previous
distance. Each AU is equal to the distance from the sun to the Earth. It
took from 1977 to 2013 for Voyager 1 to reach the edge of interstellar space.
Image Credit: NASA/J... 阅读全帖 |
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l**********1
发帖数: 5204 | 12 LZ were late from Cell already published:
please go to
//www.ncbi.nlm.nih.gov/pubmed/21414480
Cell. 2011 Mar 18;144(6):874-
It is clear that the Xenopus embryonic cell cycle can operate in
the absence of transcription. Therefore, we have regarded the
cell-cycle oscillator as only a protein circuit—proteins regulate
other proteins, but not gene expression. Nonetheless, many cellcycle
regulators in many cell types undergo periodic transcription
(Spellman et al., 1998). Indeed, in budding yeast, tr... 阅读全帖 |
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l**********1
发帖数: 5204 | 13 LZ were late from Cell already published:
please go to
//www.ncbi.nlm.nih.gov/pubmed/21414480
Cell. 2011 Mar 18;144(6):874-
It is clear that the Xenopus embryonic cell cycle can operate in
the absence of transcription. Therefore, we have regarded the
cell-cycle oscillator as only a protein circuit—proteins regulate
other proteins, but not gene expression. Nonetheless, many cellcycle
regulators in many cell types undergo periodic transcription
(Spellman et al., 1998). Indeed, in budding yeast, tr... 阅读全帖 |
|
w*****1
发帖数: 220 | 14 Dear Readers,
We are happy to present the first five papers that are published in our
new, open access journal, Physical Review X. These papers, together with
others that are to be published in the coming weeks into September, will
constitute the first issue of the journal. Under PRX's open access
publishing model, they are free for you to read and use.
We are very encouraged by the breadth of their topical spread. It ranges
from the well-established field of atomic, molecular and optica... 阅读全帖 |
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l****z
发帖数: 29846 | 15 August 10, 2012 by David Robertson
In an opinion piece titled “Global Warming Is Here to Stay”, Washington
Post Columnist Eugene Robinson sides with anthropogenic global warming (AGW)
enthusiasts:
Yes, scientists are finally asserting a direct connection between long-
term climate trends and short-term weather events. This was always a
convenient dodge for climate change deniers. There might be a warming trend
over decades or centuries, they would say, but no specific heat wave,
hurricane ... 阅读全帖 |
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s******y
发帖数: 17 | 16 有次在OHIO的高速上超速了~~
当时警察是用的一辆全黑的警车~~外部没有任何的标志和警灯~~
我看了 Ohio Revised Code 中
4549.13 Marking and equipment for motor vehicle used by traffic enforcement
officers.
Any motor vehicle used by a member of the state highway patrol or by any
other
peace officer, while said officer is on duty for the exclusive or main
purpose of
enforcing the motor vehicle or traffic laws of this state, provided the
offense is
punishable as a misdemeanor, shall be marked in some distinctive manner or
color
and shall be equi... 阅读全帖 |
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b*****p
发帖数: 9649 | 17 Arthur Hill On Goals, Style and Strategy
http://stockcharts.com/school/doku.php?id=chart_school:trading_
Before investing or trading, it is important to develop a strategy or game
plan that is consistent with your goals and style. The ultimate goal is to
make money (win), but there are many different methods to go about it.
As with many aspects of trading, many sports offer a good analogy. A
football team with goals geared towards ball control and low-scoring games
might adapt a conservative sty... 阅读全帖 |
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p*******r
发帖数: 4048 | 18 Also negative result on visual system it seems. Victor Lamme showed that
foreground and background separation is not likely done by synchronization.
I think binding by oscillation is dead. I think oscillation and temporal code
is used by as a "fine rate code". The clear example is hippocampal theta
oscillation and place cell. Phase code there gives similar information as rate
code but with better precision.
I think the possibility that oscillation and synchronization is used for
convenient compu |
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c*********6
发帖数: 858 | 19 No, you can't add a unity gain op-amp to the end of the oscillator.
The input capacitance of the op-amp will change the load capacitance of the
crystal oscillator.
The way to measure the frequency accuracy is to measure the output of the
oscillating circuit. You can not touch the lead of the crystal oscillator.
divider |
|
a******t
发帖数: 75 | 20 depending on LDO BW. ~10KHz is also possible.
However, I never saw LDO oscillation in the real measurement, because people
are very careful about the stability when designing LDO. Even if it
oscillates, simply change the external cap (if you have the choice), then
you can stop oscillation.
But I did see the bias loop circuits oscillation like CMFB.
|
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S*****s
发帖数: 287 | 21 这个贴光是 Re 的回帖太多了，找半天才看到你的问题。我们实验室涉及的方向比较杂
，做什么的人都有，所以我什么都沾一点。我们做的是癫痫病的 channelopathy，就是
离子通道异常引起的癫痫。Seizure 一般都是突然发作，完毕之后在很短的时间内恢复
常态，这个和离子通道 fast activation fast deactivation 的特点满符合。而且目
前在 Calcium channel, sodium channel, GABAA receptor (Chloride channel) 里都
发现了和癫痫有关的突变，而且做成 knockin 老鼠之后在老鼠上也发现了癫痫。这些
都说明 channelopathy 满靠谱。这个应该就是你说的 intrinsic 的离子机制吧。
hippocampus 应该是和 temporal lobe epilepsy 有关系，是 hippocampus 和 皮层之
间的 oscillation 发生了异常。 TLE 是一个 partial epilepsy，只涉及到大脑皮层
的某一个区域功能增强。我们的癫痫研究和 thalamu... 阅读全帖 |
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S*****s
发帖数: 287 | 22 这个贴光是 Re 的回帖太多了，找半天才看到你的问题。我们实验室涉及的方向比较杂
，做什么的人都有，所以我什么都沾一点。我们做的是癫痫病的 channelopathy，就是
离子通道异常引起的癫痫。Seizure 一般都是突然发作，完毕之后在很短的时间内恢复
常态，这个和离子通道 fast activation fast deactivation 的特点满符合。而且目
前在 Calcium channel, sodium channel, GABAA receptor (Chloride channel) 里都
发现了和癫痫有关的突变，而且做成 knockin 老鼠之后在老鼠上也发现了癫痫。这些
都说明 channelopathy 满靠谱。这个应该就是你说的 intrinsic 的离子机制吧。
hippocampus 应该是和 temporal lobe epilepsy 有关系，是 hippocampus 和 皮层之
间的 oscillation 发生了异常。 TLE 是一个 partial epilepsy，只涉及到大脑皮层
的某一个区域功能增强。我们的癫痫研究和 thalamu... 阅读全帖 |
|
b*****h
发帖数: 3386 | 23 【 以下文字转载自 Stock 讨论区 】
发信人: lyrist (我是捂大的), 信区: Stock
标 题: 如何做Swing trade (3) - Ascending Triangle
发信站: BBS 未名空间站 (Sun May 31 19:58:25 2009)
我们青蛙们最关心的事情是如何得到一个好pick，与其等着大牛给pick，不如自己动手
来找。
我个人在买卖股票，设置stop的时候基本只看trend, support/resistence and volume
这些东西，但在scan股票的时
候，这些咚咚不好直接定义，所以必须借助一些technical indicators。 所以， 在筛
选股票之前，我们必须了解一些基
本的technical indicators。对于筛选股票常用的technical indicators大概分为下面
几类：
1. Money flow:
大家在看蜡烛图的量的时候，会很直观的感觉，如果一段时间绿柱柱比红柱柱多，而且
高，这说明有更多的demand, 当
demand大于supply, 股价就会上涨（跟街上买白菜是一个道理... 阅读全帖 |
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m**********e
发帖数: 12525 | 24 电网本质上是个coupled oscillator network,把大量的oscillator通过复杂的神经网络
连接起来,最后得到的结果并不是一个巨大的oscillator,最后会变成一个无比复杂的非线
性网络.这个网络只有在非常狭窄的参数区域才是稳定的,超越这个区域,就会崩溃.
比如前几年美东大停电,就是这个原因,所以现在的smart grid都是用atomic clock
精确协调的.
本版祖国翻墙过来的啥也不懂的文盲太多,妈的,连相位都没听说过也敢上窜下跳了. |
|
b**k
发帖数: 3472 | 25 China Builds Mammoth Detector to Probe Mysteries of Neutrino Mass
Jane Qiu*
View larger version:
In this pageIn a new window
Download PowerPoint Slide for Teaching
Heavy hitter. China hopes its planned JUNO detector, 38 meters across, will
be the first to nail which of the three neutrino flavors is heavier or
lighter.
CREDITS: (INSET) IHEP; (SOURCE) M. BLENNOW ET AL. ARXIV 1311.1822 (2013)
BEIJING—It isn't easy to weigh a ghost. After neutrinos were hypothesized
in 1930, it took physicists 67 ye... 阅读全帖 |
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a*******d
发帖数: 53 | 26 最后解释一段。就是这样的思路在很多地方都很类似，例如我们找BF。
什么选择都是有“得到”，同时有“失去”，最终是看你“how much you are
expecting to gain from a choice"以及“how much you are willing to lose from
a choice".就像我们交男友，希望的GAIN就是生活更丰富一点，例如性需求得到更好满
足，有时候孤单也有人说说话；但是同时LOSE的就是你变得没那么自由自在了，出去
419可能会犹豫一下，要是两个人住在一起就更许多东西要协调了，以至于如果“LOSE"
的太多以后你会撕破脸皮骂对方怎么这么DEMANDING,high-maintenance, too needy,此
类很伤人的话：）。
我们去上班挣钱也是一个道理，你要是不找工作吧，确实每天很自由自在，想去哪里去
哪里，但是你就没有工资收入，吃饭可能都会有问题，更难买什么IPOD或者去酒吧跳舞
休闲了。其他很多更大的事情现象，政治经济等，其实最终的道理和上面的例子是一致
的。
所以最后是这两个东西的一个协调，其实绝大多数思考者，最终就是想为... 阅读全帖 |
|
发帖数: 1 | 27 尼古拉·特斯拉 （塞尔维亚裔美籍科学家） 编辑
尼古拉·特斯拉（Nikola Tesla，1856年7月10日~1943年1月7日），塞尔维亚裔美籍发
明家、机械工程师、电气工程师。他被认为是电力商业化的重要推动者之一，并因主持
设计了现代交流电系统而最为人知。在迈克尔·法拉第发现的电磁场理论的基础上，特
斯拉在电磁场领域有着多项革命性的发明。他的多项相关专利以及电磁学的理论研究工
作是现代的无线通信和无线电的基石。[1-2]
中文名 尼古拉·特斯拉 外文名 Nikola Tesla、Никола Тесла 别 名
尼科·特斯拉（Niko Tesla） 国 籍 奥匈帝国（后移民美国） 民 族 塞尔维亚
族（南斯拉夫人） 出生地 克罗地亚 出生日期 1856年7月10日 逝世日期 1943年1月7
日 职 业 发明家、机械工程师、电气工程师 毕业院校 格拉茨理工大学（实际未毕
业） 信 仰 塞尔维亚东正教 主要成就 交流电系统、无线电系统、无线电能传输、
雷达、放大发射机 代表作品 《My Inventions》《The Dynamic Theory of... 阅读全帖 |
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e*********g
发帖数: 323 | 28 Post-Doctoral Fellow on Spintronics in the Department of Electrical and
Electronic Engineering, The University of Hong Kong
Applications are invited for appointment as a Post-Doctoral Fellow (PDF) on
spintronics in the Department of Electrical and Electronic Engineering, from
as soon as possible for initially one year with the possibility of renewal.
Candidates should possess a doctoral degree in Physics, Materials Science,
Electrical Engineering, or a related discipline, with background in
theo... 阅读全帖 |
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d**********0
发帖数: 13081 | 29 今天买了：
RIDGID 3-Amp JobMax Starter Kit
3 Amp Motor - Provides 0-20,000 OPMs for varying applications
Oscillation Arc Range (Degrees) 1.5-3
Oscillations Per Minute (OPM) 20,000
JobMax Reciprical saw head
可换的头带 Oscillation tools $129
再加上 Recip saw head (本身带一个小锯子）。 $69
再多买的 saw head 算免费。 这样共 $129.
加税 $10.. 他奶奶的打倒政府。
俺用它来锯车库里现有的洗手池 countertop. 原有的家伙不知道为啥脑袋进水， 弄
了个长长的。 俺现在要把两边的橱柜去掉。
这个 counter top 是便宜的那种 particle board, 上面加一层聚酯膜那种。 本来
以为很好锯。 那个 Recip saw... 阅读全帖 |
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m******c
发帖数: 2440 | 30 Composite Indicator
Trend Spotter TM Buy
Short Term Indicators
7 Day Average Directional Indicator Buy
10 - 8 Day Moving Average Hilo Channel Buy
20 Day Moving Average vs Price Buy
20 - 50 Day MACD Oscillator Buy
20 Day Bollinger Bands Hold
Short Term Indicators Average: 80% - Buy
20-Day Average Volume - 1812305
Medium Term Indicators
40 Day Commodity Channel Index Buy
50 Day Moving Average vs Price Buy
... 阅读全帖 |
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m******c
发帖数: 2440 | 31 那借你吉言。
Trend Spotter TM Buy
Short Term Indicators
7 Day Average Directional Indicator Buy
10 - 8 Day Moving Average Hilo Channel Buy
20 Day Moving Average vs Price Buy
20 - 50 Day MACD Oscillator Buy
20 Day Bollinger Bands Buy
Short Term Indicators Average: 100% - Buy
20-Day Average Volume - 334622
Medium Term Indicators
40 Day Commodity Channel Index Buy
50 Day Moving Average vs Price Buy
20 - 100 Day MACD Oscillator Buy
50 Day Parabolic Time/Price Buy
Medium Term I... 阅读全帖 |
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e*********g
发帖数: 323 | 33 【 以下文字转载自 JobMarket 讨论区 】
发信人: everlasting (everlasting), 信区: JobMarket
标 题: Post-Doctoral Fellow on Spintronics in the Department of Electrical and Electronic Engineering, The
发信站: BBS 未名空间站 (Sat Sep 1 21:05:29 2012, 美东)
Post-Doctoral Fellow on Spintronics in the Department of Electrical and
Electronic Engineering, The University of Hong Kong
Applications are invited for appointment as a Post-Doctoral Fellow (PDF) on
spintronics in the Department of Electrical and Electronic Engineering, from... 阅读全帖 |
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a***e
发帖数: 27968 | 34 i just checked it more carefully. it seems to be a classic block oscillator.
the feedback coil should provide 180 degree phase shift and provide
positive feedback to the oscillator.
when Q12 turned on, current increase in main winding cause a positive
voltage the feedback winding and through C3 push the base of Q12
to a saturation state, a close circuit. as the current in main further
increase, the magnetic core saturated. feedback coil lost its voltage,
Q12 start to close and current drop. the ... 阅读全帖 |
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s******y
发帖数: 28562 | 36 版上火药味好浓啊，大家看看文章散散心吧。
新出的文章认为actin 的总体动态以及相关的serum response factor 是一个生理时钟。
Cell. 2013 Jan 31;152(3):492-503. doi: 10.1016/j.cell.2012.12.027.
Blood-borne circadian signal stimulates daily oscillations in actin dynamics
and SRF activity.
Gerber A, Esnault C, Aubert G, Treisman R, Pralong F, Schibler U.
Source
Department of Molecular Biology, Sciences III, University of Geneva, and
National Centre of Competence in Research Frontiers in Genetics, 1211 Geneva
, Switzerland.
Abstract
In peripheral ti... 阅读全帖 |
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w*********n
发帖数: 2 | 37 1. Draw the connection with 3 single-ended inverters in series. Can you do
with 2 inverters? Why? Draw the differential version.
-2 single ended inverters cannot oscillate, differential version can, take 2
-stage differential as 4-stage single ended;
2. How to size PMOS transistor sizes relative to NMOS to get the symmetric
rising/falling edges? Why we want to do this?
-Symmetric rising/falling edge can achieve better flicker noise, refer to
Hajimiri noise model;
3. Now if we increase all the tr... 阅读全帖 |
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w*********n
发帖数: 2 | 38 1. Draw the connection with 3 single-ended inverters in series. Can you do
with 2 inverters? Why? Draw the differential version.
-2 single ended inverters cannot oscillate, differential version can, take 2
-stage differential as 4-stage single ended;
2. How to size PMOS transistor sizes relative to NMOS to get the symmetric
rising/falling edges? Why we want to do this?
-Symmetric rising/falling edge can achieve better flicker noise, refer to
Hajimiri noise model;
3. Now if we increase all the tr... 阅读全帖 |
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w*****1
发帖数: 220 | 39 PUBLICATIONS
² Xun Jia, Sudip Chakravarty, \An explanation of the dichotomy between
Fermi arcs and Fermi pockets
in underdoped high-Tc superconductors," arXiv:0811.1056.
² Pallab Goswami, Xun Jia, Sudip Chakravarty, \Quantum oscillations in
graphene in the presence of
disorder and interactions," Accepted by Phys. Rev. B., arXiv:0809.3536.
² Ivailo Dimov, Pallab Goswami, Xun Jia, Sudip Chakravarty, \Competing
order, Fermi surface recon-
struction, and quantum oscillations in underd... 阅读全帖 |
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r****y
发帖数: 1437 | 40 【 以下文字转载自 Physics 讨论区 】
发信人: rossby (五十岚已夜), 信区: Physics
标 题: 问个非线性科学的问题
发信站: BBS 未名空间站 (Sun Oct 22 13:49:38 2006), 转信
也许算非线性科学吧
For a time series, which contains a quasi-period oscillation and a
regular-period oscillation.
Is there a standard procedure to detect whether these two
oscillations are phase-locked with each other (at some phases of their cycle
) or not? |
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S*****s
发帖数: 287 | 41 不会。你的问题在我推荐的文章里都有提及。Hippocampus 和 Thalamus 都和皮层有一
个 Oscillation，如果这个平衡被打破了改变了 oscillation 的性质就可能引起癫痫
。这篇文章里提到了这个 Oscillation 的具体性质和怎么样改变会引起癫痫。这篇文
章是我很久前看的，很抱歉具体细节我记不清了，不过我可以再读一下咱们一起讨论讨
论。 |
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S*****s
发帖数: 287 | 42 不会。你的问题在我推荐的文章里都有提及。Hippocampus 和 Thalamus 都和皮层有一
个 Oscillation，如果这个平衡被打破了改变了 oscillation 的性质就可能引起癫痫
。这篇文章里提到了这个 Oscillation 的具体性质和怎么样改变会引起癫痫。这篇文
章是我很久前看的，很抱歉具体细节我记不清了，不过我可以再读一下咱们一起讨论讨
论。 |
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X*****s
发帖数: 2767 | 43 我把这两个参数的定义找了出来，然后对比在走势图里，如果光看图，William %R和
Fast Stochastic Oscillator对主要底部的判断似乎很明显，比如William %R在-90以
下。但是对于超买的判断，这两个信号就不一样了，当然这也有原因，因为William %R
是设为30，而Fast Stochastic Oscillator还是默认设置。William %R在这种直拉的大
牛市里，其数值几乎一直是在-20以上，但凡有低于或者接近-20的，就可以buy dip。
William %R： Developed by Larry Williams, Williams %R is a momentum
the Fast Stochastic Oscillator and Williams %R produce the exact s |
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m*z
发帖数: 2356 | 44 Wall Street: The First Hindenburg Omen Confirmed
The feared Hindenburg Omen was Thursday confirmed in the US stock market as
the number of new highs was 136, and new lows was at 69, according to The
Wall Street Journal‘s interactive Market Data Center.
“The more confirmations, the scarier it gets from a technical perspective,
not to mention the conversion into a self-fulfilling prophecy.”
The first omen was spotted on August 12th: “The indicator may suggest a
savage equity downturn is imminent,”... 阅读全帖 |
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x********u
发帖数: 228 | 45 MCCLELLAN OSCILLATOR TURNS NEGATIVE ... On January 6, I wrote an explanation
of the McClellan Oscillator and its longer-range version which is the
Summation Index. The Oscillator measures short to intermediate momentum in
NYSE market breadth. It's the difference between the 19- and 39-day EMAs of
NYSE net advances. Readings over 100 market are overbought while a drop to -
100 is oversold. Chart 6 shows the NYMO rallying from oversold readings
during November and pulling back from an overbought r |
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E*V
发帖数: 17544 | 46 【 以下文字转载自 Poetry 讨论区 】
发信人: oscillator (oscillator), 信区: Poetry
标 题: 《神圣的高铁事业》 转贴
发信站: BBS 未名空间站 (Tue Jul 24 10:57:46 2012, 美东)
《神圣的高铁事业》
作曲：亚历山大瓦西里耶维奇亚历山德罗夫
改词：忘情
在黑夜里梦想着光
肩负复兴大业
在厚积薄发中创新
何惧风刀霜剑
我们流血汗又流泪
对你的爱已无言
黑暗终将过去
光明的希望永在
我们的血汗是无底深海
澎湃着心中火焰
默默地尽心尽力
那是职责所在
无论妖风如何烈
矢志永不移
车轮终将滚滚向前
没有谁能阻挡
我们的泪水是无底深海
对你的爱已无言
众志成城的力量
终究会凤凰涅磐
七二三一声巨响
高铁险些殇
洋鬼子精英和买办
必欲除之而后快
不可否认缺点和错误
亡羊补牢尤未晚
通盘抹杀妖魔化
只怕别有居心
我们的事业遭空前重创
洋大人在开心笑
默默地负重前行
企盼云开雾散
无论还有多少险阻
必将浴火重生
追风的梦想成真
落后终成历史
我们的泪水是无底深海
对你的爱已无言
陆权挑战海权
那将是千秋伟业 |
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x******i
发帖数: 477 | 47 不懂别造谣
On April 6, 1993, at 0110 Hawaiian Standard Time, China Eastern Airlines
flight 583, a McDonnell Douglas MD- 11, Chinese registration B-2171, a
scheduled international passenger flight from Beijing, China, to Los Angeles
, California, with an intermediate stop in Shanghai, China, had an
inadvertent deployment of the leading edge wing slats while in cruise flight
, approximately 950 nautical miles south of Shemya, Alaska. The autopilot
disconnected, and the captain was manually controlling ... 阅读全帖 |
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M*****8
发帖数: 17722 | 48 【 以下文字转载自 SanFrancisco 讨论区 】
发信人: MB80528 (肥猫(Contrarian)[食MM而肥]), 信区: SanFrancisco
标 题: Re: SPY 的预测 （有说明） (转载)
发信站: BBS 未名空间站 (Tue Aug 2 23:55:40 2011, 美东)
.......................
Oscillator 不告诉你起跌的幅度。
Oscillator 对 Trend 没有有效的调整功能。 |
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o********r
发帖数: 865 | 49 【 以下文字转载自 Poetry 讨论区 】
发信人: oscillator (oscillator), 信区: Poetry
标 题: 《神圣的高铁事业》 转贴
发信站: BBS 未名空间站 (Tue Jul 24 10:57:46 2012, 美东)
《神圣的高铁事业》
作曲：亚历山大瓦西里耶维奇亚历山德罗夫
改词：忘情
在黑夜里梦想着光
肩负复兴大业
在厚积薄发中创新
何惧风刀霜剑
我们流血汗又流泪
对你的爱已无言
黑暗终将过去
光明的希望永在
我们的血汗是无底深海
澎湃着心中火焰
默默地尽心尽力
那是职责所在
无论妖风如何烈
矢志永不移
车轮终将滚滚向前
没有谁能阻挡
我们的泪水是无底深海
对你的爱已无言
众志成城的力量
终究会凤凰涅磐
七二三一声巨响
高铁险些殇
洋鬼子精英和买办
必欲除之而后快
不可否认缺点和错误
亡羊补牢尤未晚
通盘抹杀妖魔化
只怕别有居心
我们的事业遭空前重创
洋大人在开心笑
默默地负重前行
企盼云开雾散
无论还有多少险阻
必将浴火重生
追风的梦想成真
落后终成历史
我们的泪水是无底深海
对你的爱已无言
陆权挑战海权
那将是千秋伟业 |
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f*****y
发帖数: 142 | 50 经常看到什么howl, growl, whine等词描述车路上的噪音，
下面是详细的解释，基本上每个词都有不同的意思。
欧的小破车就是howl，具体问题可以归结到differential里面
的那个pinion gear loose。//sigh，心有余而力不足啊。
尤其是没有时间再拆一次tranny了。
HOWL
Low to medium frequency
Changes pitch
Rhythmic oscillation
All speed ranges
Torque-sensitive
May have vibration
A howl is a low- to medium-frequency sound which may change in pitch, or
have a rhythmic oscillation. A howl can usually be heard through all speed
ranges and is torque-sensitive, and may be accompanied by a vibration. A
howl is |
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