2011年12月31日星期六

SocialPipeline 12/31/2011 (p.m.)

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2011年12月30日星期五

SocialPipeline 12/31/2011 (a.m.)

  • tags: Brain Neuron

    • Glia cells: the brain's supervisors (credit: Gray's anatomy/Wikimedia Commons)

      Glia cells are central to the brain’s plasticity, Tel Aviv University researchers have found, controlling how the brain adapts, learns, and stores information — and their design can be implemented in neuromorphic computer chips.

      Glia cells (Greek for “glue,” also known as glial) hold the brain’s neurons together and protect the cells that determine our thoughts and behaviors. But glia cells have now been found to do much more: a mechanism within the glia cells also regulate the synapses, sorting information for learning purposes, according to Ph.D. student Maurizio De Pittà of TAU’s Schools of Physics and Astronomy and Electrical Engineering.

      “Glia cells are like the brain’s supervisors. They control the transfer of information between neurons, affecting how the brain processes information and learns.”

      De Pittà’s research, led by his TAU supervisor Prof. Eshel Ben-Jacob, along with Vladislav Volman of The Salk Institute and the University of California at San Diego and Hugues Berry of the Université de Lyon in France, has developed the first computer model that incorporates the influence of glia cells on synaptic information transfer.

      The model can also be implemented in technologies based on brain networks such as microchips and computer software, Prof. Ben-Jacob says, and can aid in research on brain disorders such as Alzheimer’s disease and epilepsy.

  • tags: Brain Neuron

    • The stimulus timing pattern that maximized the peak level of memory in a snail consisted of non-uniformly spaced serotonin (5-HT) applications with interstimulus intervals of 10, 10, 5 and 30 min. "Inducer" is a variable representing the synergistic interaction between two proteins (PKA and ERK) associated with memory. (Credit: Yili Zhang, et al./Nature Neuroscience)

      University of Texas Health Science Center at Houston (UTHealth) neuroscientists used the sea snail known as Aplysia californica to test an innovative learning strategy designed to help improve the brain’s memory, with encouraging results.

      The research could ultimately benefit people who have impairments resulting from aging, stroke, traumatic brain injury, or congenital cognitive impairments.

      Building on earlier research that identified proteins linked to memory, the UTHealth researchers created a mathematical model that tells them the temporal pattern (timing) of the activity of these proteins for the best learning experience. Using this model, the computer sorted through 10,000 different permutations to determine a schedule that would enhance memory.

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2011年12月26日星期一

SocialPipeline 12/26/2011 (p.m.)

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2011年12月23日星期五

SocialPipeline 12/24/2011 (a.m.)

    • 大陆网民不但饱受中国电信“乱宰”,还在饱受中国电信“乱欺诈”;明明是“狗肉”,非要挂着“羊头卖”。中国网民绝大多数用户使用“假宽带”浮出水面。据了解,使用4M宽带的用户中,平均速度在400KB/s以下的占91.2%;使用2M宽带平均速度在200KB/s以下的占83.5%;使用1M宽带在100KB/s一下的则占67.6%;多数用户办理的固网宽带带宽为2M或4M,而2M带宽下用户平均上网速度为142.2KB每秒,4M则为232.7KB每秒。全国固网宽带用户平均上网速度为199.3KB每秒,与名义速度差异极大。
    • The galaxy, which was discovered and confirmed using ground-based telescopes, is 12.9 billion light-years away. Data from Spitzer and Hubble were used to measure the galaxy’s high star production rate, equivalent to about 100 suns per year. For reference, our Milky Way galaxy is about five times larger and 100 times more massive than GN-108036, but makes roughly 30 times fewer stars per year.

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SocialPipeline 12/23/2011 (p.m.)

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2011年12月22日星期四

SocialPipeline 12/22/2011 (p.m.)

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2011年12月20日星期二

SocialPipeline 12/20/2011 (p.m.)

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2011年12月3日星期六

SocialPipeline 12/04/2011 (a.m.)

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2011年12月1日星期四

SocialPipeline 12/02/2011 (a.m.)

    • <p><span style="color: #000000;">缘起一篇转了很红的帖子,上面有胡适在1911年写的留学日记,内容大约是说胡适天天打牌,制定的学习计划都就没有实行云云。这篇帖子如同茫茫黑夜中的一座灯塔,为无数宅男宅女带去了光明和希望,只要把“打牌”换成“上网”之类的,大师其实和我们差不多。</span></p><br/><p><span style="color: #000000;">结果我在豆瓣上看到有一个帖子专门来考据这篇帖子的真伪,于是出现各种真相帝,基本可以证实这篇日记是伪作,但是胡适打牌的事情是属实的。</span></p><br/><p><span style="color: #000000;">于是这就很有意思了,我闲着也是无聊,就去查了一下胡适日记全集,摘录了当中的原文,也算是一种学术了。</span></p><br/><p><span style="color: #000000;">P.S. 胡适的日记还是很有意思的,看看就明白为什么人家打牌都成为大师了。图书馆里应该能找到这本,被我上次偶尔翻到,在二楼社科图书馆进去往左走的某架上,胡适全集,有四十几本好像,每本都跟字典一样厚,有空去翻翻吧。</span></p><br/><p><strong>&nbsp;</strong></p><br/><p><strong><span style="color: #000000;">原帖:</span></strong></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">7月4日 </span></span></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">新开这本日记,也为了督促自己下个学期多下些苦功。先要读完手边的莎士比亚的《亨利八世》... </span></span></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">… </span></span></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">7月13日 </span></span></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">打牌。 </span></span></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">7月14日 </span></span></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">打牌。 </span></span></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">7月15日 </span></span></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">打牌。 </span></span></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">7月16日 </span></span></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">胡适之啊胡适之!你怎么能如此堕落!先前订下的学习计划你都忘了吗? <br>子曰:“吾日三省吾身。”...不能再这样下去了! </span></span></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">7月17日 </span></span></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">打牌。 </span></span></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">7月18日 </span></span></p><br/><p><span style="background-color: #cc99ff;"><span style="color: #000000;">打牌。<br></span></span></p><br/><p><span style="color: #000000;">&nbsp;</span></p><br/><p><strong><span style="color: #000000;">考据帖:</span></strong></p><br/><p><span style="background-color: #ffff99;"><span style="color: #000000;">1、……查《胡适留学日记》,卷一所记为1911年1月30日到10月30日,卷二为1912年9月25日至12月28日。卷三以后,则每篇标明题目,多为时事评论,不再是杂记体例。所以按照引用的“7月4日”云云,只能存在于卷一。 <br>  而卷一中与网上流传对应的日期却并非如流传的样子,可知此系伪造。但那几天胡适常常打牌却是真的。向来是根据此迹象,模仿其口气伪造出来的。 <br>  不过,可见写这段《老一代学术青年的日记》的人读过此日记,且所写行文风趣,适足以博开心一笑。只怕大家误为真实记载,故查证如此。</span></span></p><br/><p><span style="background-color: #ffff99;"><span style="color: #000000;">2、经查 《胡适留学日记》中虽然“打牌”出现次数不少(卷一) <br>    但楼主所示日期之下 却不能找到对应文字 <br>    卷一(1911年)七月份出现“打牌”字眼的有以下日期: <br>    二日、三日、五日、六日、七日、八日、二十一日、二十二日、二十四日、二十五日、二十九日 <br>    都很“神奇”的绕开了楼主所示日期 <br>    而七月四日与七月十六日下面楼主概括的“大意”也找不到 <br>    ……尽管楼主自称帖子所说是“大意” <br>    但是“大意”到连日期都对不上 就太说不过去了 <br>    如果不是真确记得 为什么敲下具体的日期?——以取信他人?不足取也。</span></span></p><br/><p><span style="color: #000000;">&nbsp;</span></p><br/><p><strong><span style="color: #000000;">原文考据:(摘自《胡适日记全编:1910-1914》卷一)</span></strong></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">胡适 一九一一年一月卅日至十月卅日(在康乃耳大学农学院)</span></span></span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">二月五日:今日起戒吸纸烟。刘千里以电话邀打牌。读《左传》两卷。</span></span></span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">二月廿日:连日似太忙碌,昨夜遗精,颇以为患。今日访Dr. Wright,询之,医云无害也。<em>(我只是觉得这条比较精彩)</em></span></span></span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">三月十日:夜打牌,晏睡。</span></span></span></span></p><br/><p><span style="color: #000000;">&nbsp;</span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">四月九日:至沈君处打牌,十二时始归。</span></span></span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">四月廿九日:天时骤暖至八十度以上,不能读书,与沈、陈诸君打纸牌,又与刘、侯诸君打中国牌。</span></span></span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">四月卅日:晏起。读生物学。打牌。</span></span></span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">五月六日:打牌。夜赴中国学生会。</span></span></span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">五月十二日:打牌。</span></span></span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">五月十四日:夜与刘千里诸人打牌。刘君已毕业,云下星期二将归祖国矣。</span></span></span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">六月五日:考生物学。下午考德文。夜打牌。</span></span></span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">六月十二日:打牌。</span></span></span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">六月廿八日:今日始习打网球。夜打牌。</span></span></span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">七月二日:天热不能作事。打牌消遣。</span></span></span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">七月三日:今日天气百一十度。打牌。</span></span></span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">七月五日:往暑期学校注册。打牌。</span></span></span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">七月六日:暑期学校第一日,化学。打牌。</span></span></span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">七月七日:上课。打牌。</span></span></span></p><br/><p><span style="color: #000000;"><span style="background-color: #99ccff;"><span style="color: #000000;">七月八日:<span style="background-color: #99ccff;">无事。打牌。天稍稍凉矣。</span></span></span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">七月廿一日:化学第二小试……打牌。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">七月廿二日:打牌。读美国短篇名著数种。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">七月廿四日:上课。得德争一书。打牌。演化学算题。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">七月廿五日:上课。作书复德争。打牌。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">七月廿九日:读《马太福音》。读Samuel Daniel情诗数章。打牌。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">八月四日:化学第四小考。极不称意;平生考试,此为最下。打牌。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">八月五日:打牌。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">八月十日:连日或以读书,或以打牌,恒子夜始寝,今日觉有不适,故以此矫之。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">八月十一日:夜打牌。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">八月十八日:读马可梨之“History”及“Johnson”。打牌。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">八月廿三日:夜打牌。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">八月廿四日:是日,打牌两次。读弥尔顿小诗。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">八月廿五日:打牌。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">八月廿六日:读德文诗歌“Lyrics and Ballads”。打牌。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">八月卅日:晏起。打牌。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">九月三日:读仲马小说。打牌。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">九月四日:为休息之日。打牌。读仲马小说……伟矣哉,小说之王也!</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">九月五日:读小说。打牌。</span></span></p><br/><p><span style="background-color: #99ccff;"><span style="color: #000000;">九月六日:昨日,与金涛君相戒不复打牌。</span></span></p><br/><p><span style="color: #000000;">(关于打牌的记载至此为止)</span></p>

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2011年11月26日星期六

SocialPipeline 11/27/2011 (a.m.)

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SocialPipeline 11/26/2011 (p.m.)

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2011年11月24日星期四

SocialPipeline 11/24/2011 (p.m.)

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2011年11月23日星期三

SocialPipeline 11/23/2011 (p.m.)

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2011年11月21日星期一

SocialPipeline 11/22/2011 (a.m.)

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SocialPipeline 11/21/2011 (p.m.)

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2011年11月20日星期日

SocialPipeline 11/20/2011 (p.m.)

  • tags: Visualization

    • A new visualization by travel writer Osman Khan charts the “Evolution of Western Dance Music,” tracing music through time and space from Africa and the Caribbean through the development of the Blues, Jazz, Funk, Disco, and, well, you know the story.

       

       Evolution of Western Dance
      Screenshot of “The Evolution of Western Dance Music” visualization. Click here for the interactive version.

       

      Khan recognizes the spread of music is open to debate — in terms of how you define genre and influence, for example. (I’d also add, in terms of the size you choose to depict the continents in the associated visualization.) Khan points to his sources: Bass Culture, Last Night A DJ Saved My Life, and The All Music Guide to Electronica, along with Wikipedia.

       

       

      The data marketplace Infochimps (where I found the link to Khan’s visualization) asks an interesting question: How would a visualization about the spread of music based on something like Infochimps’ Million Song dataset — a dataset about sound and recording metadata — differ from a visualization, like Khan’s, based on stories?

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2011年11月19日星期六

SocialPipeline 11/19/2011 (p.m.)

  • 用准确的1001个词讲述了101个六度关系的故事

    • 用准确的1001个词讲述了101个六度关系的故事
  • 我是名大学生,喜好阅读,无奈喜欢的书很多都被禁了。我是在twitter上知道这个网站的,我没有kindle的阅读经验,因为...买不起....

    tags: kindler

      • At the Neuroscience 2011 conference, scientists at The Rockefeller University, The Scripps Research Institute, and the University of Pennsylvania presented new research  demonstrating the impact that life experiences can have on genes and behavior. The studies examine how such environmental information can be transmitted from one generation to the next — a phenomenon known as epigenetics. This new knowledge could ultimately improve understanding of brain plasticity, the cognitive benefits of motherhood, and how a parent‘s exposure to drugs, alcohol, and stress can alter brain development and behavior in their offspring.

        The new findings show that:

        • Brain cell activation changes a protein involved in turning genes on and off, suggesting the protein may play a role in brain plasticity.
        • Prenatal exposure to amphetamines and alcohol produces abnormal numbers of chromosomes in fetal mouse brains. The findings suggest these abnormal counts may contribute to the developmental defects seen in children exposed to drugs and alcohol in utero.
        • Cocaine-induced changes in the brain may be inheritable. Sons of male rats exposed to cocaine are resistant to the rewarding effects of the drug.
        • Motherhood protects female mice against some of the negative effects of stress.
        • Mice conceived through breeding — but not those conceived through reproductive technologies — show anxiety-like and depressive-like behaviors similar to their fathers. The findings call into question how these behaviors are transmitted across generations.
  • " Clusters of silicon (green) between graphene sheets allow for more lithium atoms (blue) in electrodes for increased charging capacity and nanoholes speed up ion flow for faster charging speed (credit: Northwestern University)

    Northwestern University engineers have created an electrode for lithium-ion batteries — rechargeable batteries such as those found in cellphones and iPods — that allows them to hold a charge up to 10 times greater and charge 10 times faster than current batteries; they could also pave the way for more efficient, smaller batteries for electric cars.

    The technology could be seen in the marketplace in the next three to five years, the researchers said.

    “We have found a way to extend a new lithium-ion battery’s charge life by 10 times,” said Harold H. Kung, professor of chemical and biological engineering.

    “Even after 150 charges, which would be one year or more of operation, the battery is still five times more effective than lithium-ion batteries on the market today.”

    How Lithium-ion batteries work

    Lithium-ion batteries charge through a chemical reaction in which lithium ions are sent between two ends of the battery, the anode and the cathode. As energy in the battery is used, the lithium ions travel from the anode, through the electrolyte, and to the cathode; as the battery is recharged, they travel in the reverse direction.

    With current technology, the performance of a lithium-ion battery is limited in two ways. Its energy capacity — how long a battery can maintain its charge — is limited by the charge density, or how many lithium ions can be packed into the anode or cathode. Meanwhile, a battery’s charge rate — the speed at which it recharges — is limited by another factor: the speed at which the lithium ions can make their way from the electrolyte into the anode.

    In current rechargeable batteries, the anode — made of layer upon layer of carbon-based graphene sheets — can only accommodate one lithium atom for every six carbon atoms. To increase energy capacity, scientists have previously experimented with replacing the carbon with silicon, as silicon can accommodate much more lithium: four lithium atoms for every silicon atom. However, silicon expands and contracts dramatically in the charging process, causing fragmentation and losing its charge capacity rapidly.

    Currently, the speed of a battery’s charge rate is hindered by the shape of the graphene sheets: they are extremely thin — just one carbon atom thick — but by comparison, very long. During the charging process, a lithium ion must travel all the way to the outer edges of the graphene sheet before entering and coming to rest between the sheets. And because it takes so long for lithium to travel to the middle of the graphene sheet, a sort of ionic traffic jam occurs around the edges of the material.

    Battery charging breakthroughs

    The research team has combined two techniques to combat both these problems. First, to stabilize the silicon in order to maintain maximum charge capacity, they sandwiched clusters of silicon between the graphene sheets. This allowed for a greater number of lithium atoms in the electrode while utilizing the flexibility of graphene sheets to accommodate the volume changes of silicon during use.

    The team also used a chemical oxidation process to create miniscule holes (10 to 20 nanometers) in the graphene sheets — termed “in-plane defects” — so the lithium ions would have a “shortcut” into the anode and be stored there by reaction with silicon. This reduced the time it takes the battery to recharge by up to 10 times.

    Next, the researchers will begin studying changes in the cathode that could further increase effectiveness of the batteries. They also will look into developing an electrolyte system that will allow the battery to automatically and reversibly shut off at high temperatures — a safety mechanism that could prove vital in electric car applications.

    Ref.: Xin Zhao, et al., In-Plane Vacancy-Enabled High-Power Si–Graphene Composite Electrode for Lithium-Ion Batteries, Advanced Energy Materials, 2011; [DOI: 10.1002/aenm.201100426]"

    • Clusters of silicon (green) between graphene sheets allow for more lithium atoms (blue) in electrodes for increased charging capacity and nanoholes speed up ion flow for faster charging speed (credit: Northwestern University)

      Northwestern University engineers have created an electrode for lithium-ion batteries — rechargeable batteries such as those found in cellphones and iPods — that allows them to hold a charge up to 10 times greater and charge 10 times faster than current batteries; they could also pave the way for more efficient, smaller batteries for electric cars.

      The technology could be seen in the marketplace in the next three to five years, the researchers said.

      “We have found a way to extend a new lithium-ion battery’s charge life by 10 times,” said Harold H. Kung, professor of chemical and biological engineering.

      “Even after 150 charges, which would be one year or more of operation, the battery is still five times more effective than lithium-ion batteries on the market today.”

      How Lithium-ion batteries work

      Lithium-ion batteries charge through a chemical reaction in which lithium ions are sent between two ends of the battery, the anode and the cathode. As energy in the battery is used, the lithium ions travel from the anode, through the electrolyte, and to the cathode; as the battery is recharged, they travel in the reverse direction.

      With current technology, the performance of a lithium-ion battery is limited in two ways. Its energy capacity — how long a battery can maintain its charge — is limited by the charge density, or how many lithium ions can be packed into the anode or cathode. Meanwhile, a battery’s charge rate — the speed at which it recharges — is limited by another factor: the speed at which the lithium ions can make their way from the electrolyte into the anode.

      In current rechargeable batteries, the anode — made of layer upon layer of carbon-based graphene sheets — can only accommodate one lithium atom for every six carbon atoms. To increase energy capacity, scientists have previously experimented with replacing the carbon with silicon, as silicon can accommodate much more lithium: four lithium atoms for every silicon atom. However, silicon expands and contracts dramatically in the charging process, causing fragmentation and losing its charge capacity rapidly.

      Currently, the speed of a battery’s charge rate is hindered by the shape of the graphene sheets: they are extremely thin — just one carbon atom thick — but by comparison, very long. During the charging process, a lithium ion must travel all the way to the outer edges of the graphene sheet before entering and coming to rest between the sheets. And because it takes so long for lithium to travel to the middle of the graphene sheet, a sort of ionic traffic jam occurs around the edges of the material.

      Battery charging breakthroughs

      The research team has combined two techniques to combat both these problems. First, to stabilize the silicon in order to maintain maximum charge capacity, they sandwiched clusters of silicon between the graphene sheets. This allowed for a greater number of lithium atoms in the electrode while utilizing the flexibility of graphene sheets to accommodate the volume changes of silicon during use.

      The team also used a chemical oxidation process to create miniscule holes (10 to 20 nanometers) in the graphene sheets — termed “in-plane defects” — so the lithium ions would have a “shortcut” into the anode and be stored there by reaction with silicon. This reduced the time it takes the battery to recharge by up to 10 times.

      Next, the researchers will begin studying changes in the cathode that could further increase effectiveness of the batteries. They also will look into developing an electrolyte system that will allow the battery to automatically and reversibly shut off at high temperatures — a safety mechanism that could prove vital in electric car applications.

      Ref.: Xin Zhao, et al., In-Plane Vacancy-Enabled High-Power Si–Graphene Composite Electrode for Lithium-Ion Batteries, Advanced Energy Materials, 2011; [DOI: 10.1002/aenm.201100426]

  • 我是名大学生,喜好阅读,无奈喜欢的书很多都被禁了。我是在twitter上知道这个网站的,我没有kindle的阅读经验,因为...买不起....

    tags: kindler

    • 射雕英雄传英文版
    • 余华《十个词汇里的中国》
    • K4比K3确实小不少,轻不少,但是电池容量差一半…
      K4外出时候可以放在屁股口袋里,很方便
    • 冯唐的《不二》
  • Followers of my blog probably know that this blog is photo heavy. I get many compliments for posting them but I wanted to expand into posting my thoughts and observations on design and the industry. Of course, they will be complimented with graphics and photos.

    I'll be calling these Coffee Time. 

    I'll post on a frequent basis. Most of them will be short (hence the name). This week, I wanted to share my thoughts on market share of iOS.

     



    These numbers have been creating quite a buzz recently. Most people that readers have probably seen this already. The issue is that Android is dominating in terms of Android and people are having questions about how successful iOS really is.

     

     



    What many people have failed to associate is that Apple dominates in terms of revenue. Look at these graphs by Oppenheimer. I've always categorized Android users into two key segments; nerds and budget buyers. The sad thing is that nerds are the minority. Most people are looking for the cheapest smartphone to purchase - and Android offers many of these choices. This is most likely the reason Android ships so many devices yet makes little margin. Also keep in mind that these graphs include Windows Phones too. There are many ways you can interpret these statistics. The key facts:

     

    - Yes, in terms of a pure number of shipped products, Android rules all.

    - If you look at the amount of money being made, Apple dominates.

    - Android has many manufacturers using their OS, iOS devices are only made by Apple.

     

     



    This is how I like to illustrate this whole scenario. Above is Apple's product line. Lean and simple.

     







    These are the phones Samsung currently sells in the US. You be the judge. Samsung is only one of the many manufacturers selling Android phones and has this complex of a product lineup. And yes, there are non-Android phones in the mix but it shows how many phones other companies make only to make a fraction of what Apple does. 

     

    tags: Visualization

    • Even as the processing power and download speeds of mobile devices surge, one component still lags behind: the screen. LCD panels use significantly more power than any other component of a phone or tablet because of their need to pump out bright light to form an image.

       

      The only practical alternative is e-ink, the technology used in the Amazon Kindle; it consumes orders of magnitude less power but sacrifices color and the ability to change images fast enough for video playback or smooth game play.

       

      Now, after years of waiting, alternative technology that promises the best of both approaches is finally edging closer to commercialization. During a recent visit to mobile chipmaker Qualcomm's headquarters in San Diego, Technology Review tried out a full-color, 5.7-inch Android tablet with a display that offers rich colors under bright light, close to those of an LCD and not unlike the pages of a magazine. The prototype screen was also responsive enough for video playback and for a game of Angry Birds; it can deliver up to 30 frames per second.

       

      Because the device's screen uses ambient light, like a printed page or e-ink display, the power consumption is a tenth or less of that of a comparable LCD, although the display also features a built-in light for use in the dark. Known as Mirasol, the technology was created by a startup company, Iridigm, acquired by Qualcomm in 2004.

         
        <!--<p style="clear: both; text-align: center; font-size: 11px; padding:0; margin:0"><a href="#afteradbody" style="text-decoration: none;">Story continues below</a></p>--> 
        Advertisement
       <script type="text/javascript"> <!--//--><![CDATA[//><!-- document.write('<SCR' + 'IPT LANGUAGE="JavaScript" SRC="//ad.doubleclick.net/adj/mk3.technologyreview.com/mediumrectangle4;!category=computingexc;channel=computing;section=;at=mediumrectangle4;page=home;s=mediumrectangle4;dcopt=ist;ord=' + randartnum + '?"><\/SCR' + 'IPT>') //--><!]> </script><script src="//ad.doubleclick.net/adj/mk3.technologyreview.com/mediumrectangle4;%21category=computingexc;channel=computing;section=;at=mediumrectangle4;page=home;s=mediumrectangle4;dcopt=ist;ord=3721448310665727?" language="JavaScript"></script>    
       
         

      "In the market today, you have the iPad at one end and things like e-ink at the other end. This is really meant to bridge both of those worlds," says Clarence Chui, who leads the group at Qualcomm developing the new technology. "It is extremely low power, full color, and can be looked at wherever you go."

       

      The Mirasol display makes color in the same way as the wings of iridescent butterflies or peacock feathers—by being an imperfect mirror that tunes the color of incoming light before reflecting it back to the viewer.

       

      In a Mirasol display, this is done by small cavities known as interferometric modulators, tens of microns across and a few hundred nanometers deep, beneath the display's glass surface. "It's the air gap between the back of that glass and a mirror membrane at the bottom of the modulator that sets the color," says Chui. Each modulator's mirror membrane can snap upward against the glass when a small voltage is applied, closing the cavity and displaying a black color to the viewer. Mirasol modulators are made using techniques similar to those used to pattern metals and deposit materials in computer chip manufacturing.

Posted from Diigo. The rest of my favorite links are here.

2011年11月18日星期五

SocialPipeline 11/19/2011 (a.m.)

    • The republic philosophy. Down with phone bills, up with freedom.

       

      Did you know that on an average mobile service bill, two-thirds of the cost comes from talking? Just talking!  We think that’s screwy. That’s why we introduced Hybrid Calling. You pay $199 for the first month, plus tax, and get a new LG Optimus smartphone. 

       

      Not satisfied with the phone or service? Return it anytime in the first 30 days and receive your money back, no questions asked. Membership after that is $19 per month, plus tax. Period. Going Wi-Fi allows us to broom the whole business of contracts, overages and having any calling plan at all. You use your phone all you want. You say “so long” any time you want. republic wireless means freedom. Experience it sometime.

Posted from Diigo. The rest of my favorite links are here.

SocialPipeline 11/18/2011 (p.m.)

Posted from Diigo. The rest of my favorite links are here.

2011年11月10日星期四

SocialPipeline 11/10/2011 (p.m.)

Posted from Diigo. The rest of my favorite links are here.

2011年11月2日星期三

SocialPipeline 11/03/2011 (a.m.)

Posted from Diigo. The rest of my favorite links are here.

SocialPipeline 11/02/2011 (p.m.)

      • fbKindle

          

        众所周知,Kindle 不支持阅读 ePub 格式的电子书。不过,利用 fbKindle 这款软件,我们可以去掉 Kindle 的限制,在 Kindle 上也可痛快阅读 ePub 电子书。

          

        要在 Kindle 上安装 fbKindle,必须满足以下两个条件:

          
        • Kindle 需要被越狱
        • Kindle 上要安装有 Launchpad
        • MobileRead 下载 kindle-jailbreak-0.6.N.zip 越狱文件,并解包备用。
        • 将 Kindle 连接至电脑,拷贝 update_jailbreak_0.6.N_xxx_install.bin 文件到 Kindle 根目录。其中,xxx 代表:

            
          • k2:Kindle 2 US
          • k2i:Kindle 2 国际版
          • dx:Kindle DX US
          • dxi:Kindle DX 国际版
          • dxg:Kindle DX Graphite
          • k3g:Kindle 3 3G US
          • k3w:Kindle 3 WiFi
          • k3gb:Kindle 3 3G UK
          • 安全拔掉 Kindle,从 Home 页选择 Menu → Settings → Menu → Update Your Kindle 菜单项目来更新 Kindle。

              

            Kindle 将予以提示,确认后系统开始更新。完成后 Kindle 将自动重启。

          • 下载 lpad-pkg-001c.zip 文件,同样解包备用。
          • 连接 Kindle 到电脑,将 update_launchpad_0.0.1c_xxx_install.bin 拷贝到 Kindle 根目录。关于 xxx 的解释同上。
          • 最后一步,与 Kindle 越狱一样,通过 Update Your Kindle 菜单来更新 Kindle。完成后,Kindle 会重启。
          • 下载 fbKindle-bin.tar.gz 文件,不用解包。
          • 将 Kindle 与电脑相连,并把下载的文件拷贝到 Kindle 根目录。
          • 转到 Kindle 根下的 launchpad 目录,打开其中的 launchpad.ini 文件,并添加下列内容:

              
            ;; run experimental FBReader for kindle F R = !/mnt/us/fbKindle/goqt.sh FBReader &  ;; unpack experimental fbreader's tar archive U T = !cd /mnt/us; tar zxvf fbKindle-bin.tar.gz; rm fbKindle-bin.tar.gz; echo 101 >/proc/eink_fb/update_display 
          • 断开 Kindle 与电脑的连接,并重启 Kindle。

          • 在 Kindle 的 Home 页按 Shift+U+T(先按 Shift 键,接着是 U 和 T 键),此时 Kindle  的屏幕底部将显示 ^[U T] 字样。稍等一会儿,fbKindle 解压完成后,你将会看到 Kindle 变成灰屏。 至此,fbKindle 安装成功。按 Home 返回 Home 页。
          • 现在按 Shift+F+R 就可以启动 fbKindle 了。如果要从 fbKindle 切换回 Kindle,按 Alt+Shift;反之也一样。 退出 fbKindle,则按 Alt+Back。
          •    

            { via MobileRead }

Posted from Diigo. The rest of my favorite links are here.

2011年10月31日星期一

SocialPipeline 11/01/2011 (a.m.)

    • 研討議題

       

      在Web2.0的世界,互聯網已成為了一個全球性的科技社會系統,概念上形成一個無等級的全球網絡,用戶能夠重新創建信息內容,這樣的技術進步不僅促進了全球信息交流,互聯網也同時發揮了透過創建新的聯想空間去替換社會矛盾的作用。《科技社交的顛覆性》將側重於中國公眾知識分子對科技的社會性使用。通過即時報道如知識產權、激進媒體和國際政治等的議題,我們希望通過創意技術界面來合成社會上的不同見解。

       

      講者 (排名跟據姓氏英文字母排列)

       

      毛向輝
        歐寧
        樂大豆

    • 英文:Don't shoot,I Surrender
      读音:咚 修特,哀 涩髯德
      翻译:别开枪,我投降

      英文:We are friend,not enemy
      读音:微 阿 弗髯德,闹特 哀讷美
      翻译:我们是朋友,不是敌人

      英文:I feel hungry,water bread or chocolate please?
      读音:哀 非尤 憨格瑞,喔特 布瑞德 噢 丘克莱特 普里斯?
      翻译:我饿,有水面包或巧克力么?

      英文:Thanks for entertain
      读音:三克丝 弗噢 安特天恩
      翻译:感谢款待

      英文:City inspector here,be careful.
      读音:泗踢 因斯掰克特 嘿儿,逼 开阿佛
      翻译:城管出没,要小心

      英文:Don't move,Minefield there !
      读音:咚 莫佛,蔓恩菲尤德 戴雅
      翻译:别动,那是地雷区!

      英文:I am familiar with here
      读音:哀 门 发梅利儿 微斯 嘿儿
      翻译:我熟悉这里

      英文:I know where is the headquarters
      读音:哎 呐哦 微儿 伊斯 德 嗨德括特斯。
      翻译:我知道指挥部在哪儿

      英文:Cover me and I show you the way
      读音:咔瓦 咪 安德 哀 修 尤 德 微
      翻译:保护我,给你带路

      英文:This guy is the leader
      读音:敌斯 丐 伊斯 德 利德儿
      翻译:这家伙是领导

Posted from Diigo. The rest of my favorite links are here.

2011年10月30日星期日

SocialPipeline 10/31/2011 (a.m.)

Posted from Diigo. The rest of my favorite links are here.

2011年10月29日星期六

SocialPipeline 10/30/2011 (a.m.)

Posted from Diigo. The rest of my favorite links are here.

2011年10月28日星期五

SocialPipeline 10/29/2011 (a.m.)

    • 一位来自竞争对手公司、对比亚迪颇有了解的高管表示:“你怎么能只拿出一款平庸的内燃机产品和一款平庸的电池产品,只是试图制造出一款平庸的电动车,更别说什么高性能的电动车呢?”

       

Posted from Diigo. The rest of my favorite links are here.

2011年10月27日星期四

SocialPipeline 10/28/2011 (a.m.)

Posted from Diigo. The rest of my favorite links are here.

2011年10月19日星期三

SocialPipeline 10/20/2011 (a.m.)

Posted from Diigo. The rest of my favorite links are here.

2011年10月17日星期一

SocialPipeline 10/17/2011 (p.m.)

    • 當時林奐均滿身鮮血,還被棉被蓋著頭,在傳統習俗,這是行兇者明顯害怕被害人記住、死後跟著,就像因為從海外捐款給美麗島遭約談、卻陳屍台大校園的陳文成博士命案,皮鞋下面被塞了幾百元鈔票,也是行兇者心虛、怕被害人一直跟著。

    • 台灣人的故事,不只是田醫師、田媽媽、鄭南榕、林義雄,還有許許多多連名字都沒有的無名英雄,歷史是「會了、但?盡」,事件會過去、仇恨或許可以寬恕,但教訓要記取、悲劇不能重演,歷史,更是絕對不能忘記的。

Posted from Diigo. The rest of my favorite links are here.