You Raise Me Up

When I am down 当我失意低落之时
　　and, oh my soul, so weary; 我的精神，是那么疲倦不堪
　　When troubles come 当烦恼困难袭来之际
　　and my heart burdened be; 我的内心，是那么负担沉重
　　Then, I am still 然而，我默默的伫立
　　 and wait here in the silence, 静静的等待
　　Until you come 直到你的来临
　　and sit awhile with me. 片刻地和我在一起
　　
　　
　　
　　You raise me up, 你激励了我
　　so I can stand on mountains; 故我能立足于群山之巅
　　You raise me up, 你鼓舞了我
　　to walk on stormy seas; 故我能行进于暴风雨的洋面
　　I am strong, 在你坚实的臂膀上
　　when I am on your shoulders; 我变得坚韧强壮
　　You raise me up: 你的鼓励
　　To more than I can be. 使我超越了自我
　　
　　
　　
　　There is no life - 世上没有——
　　no life without its hunger; 没有失去热望的生命
　　Each restless heart 每颗悸动的心
　　beats so imperfectly; 也都跳动得不那么完美
　　But when you come 但是你的到来
　　and I am filled with wonder, 让我心中充满了奇迹
　　 Sometimes, I think 甚至有时我认为 因为有你
　　I glimpse eternity. 我瞥见了永恒
　　
　　
　　
　　You raise me up, 你激励了我
　　so I can stand on mountains; 故我能立足于群山之巅
　　You raise me up, 你鼓舞了我
　　to walk on stormy seas; 故我能行进于暴风雨的洋面
　　I am strong, 在你坚实的臂膀上
　　when I am on your shoulders; 我变得坚韧强壮
　　You raise me up: 你的鼓励
　　To more than I can be. 使我超越了自我

How it works~library security system...

hehe...many of us always wondering how the security gate at the library entrance actually works...here with some explanation and picture about it...

first to tell is the system is all about a electromagnetic system. It require a magnetic, iron-containing strip with an adhesive layer is attached to the merchandise.This strip is not removed at checkout it's simply deactivated by a scanner that uses a specific highly intense magnetic field.

What most people refer to as an electromagnetic tag is actually a metal wire or ribbon that has high permeability, making it easy for magnetic signals to flow through it.When we drive the tag, flux is being allowed to flow through the tag until it's saturated,When it's saturated, from a magnetic perspective, it begins to look like air. Saturation occurs abruptly and is an important part of the design of the tag.



the figure showing the EM system with its receive coil and transmitter on either side and tag in the middle. When the tag goes from active to saturated, the receiver detects the change in the amount of the signal picked up from the transmitter."If you look at the receiver signal, you'll see a bump when saturation occurs,"Saturation occurs twice each cycle-once on the transmitter's positive cycle and once on its negative cycle. What is happening is the system is checking for the special material used to make the tag. (In scientific terms, the permeability of steel is much lower than the metal used to make the tag. In addition, when steel goes to saturation, it tends to do so slowly, not abruptly. So the EM system uses these differences to differentiate between a still-active tagged item leaving the store and a wrench in someone's pocket.)

p/s: you can try walking through this detection gate at library entrance with earphone on, you can heard the interrupt noise :)

A magnetized piece of semi-hard magnetic material (basically, a weak magnet) is put up next to the active material to deactivate it. When you magnetize the semi-hard material, it saturates the tag and puts it in its inactive saturated state.

That same kind of tag is often used in the library, where it can be reactivated by demagnetizing the semi-hard magnetic material.

The EM system works by applying intensive low frequency magnetic fields generated by the transmitter antenna. When the strip passes through the gate, it will transmit a unique frequency pattern. This pattern is, in turn, being picked up by an adjacent receiver antenna. The small signal is processed and will trigger the alarm when the specific pattern is recognized. Because of the weak response of the strip and the low frequency (typically between 70 Hz and 1 kHz) and intensive field required by the EM system, EM antennas are larger than those used by most other EAS systems, and the maximum distance between entry pedestals is 40 inches. Also, because of the low frequency here, the strips can be directly attached to metal surfaces. That's why EM systems are popular with hardware, book and record stores.

here is some picture that i took from the books i borrow from M²U library...

- there is a thin metal strip hiding in the middle part of the book
-Obviously, u can see nthg from the side and doesn't know where
they have kept the EM strip.(M²U mostly stick it at the middle
part xD )

thats the secret that they don want us to know...:)
and i writing this post is just for interesting and knowledge sharing to you guys....
(dont do stupid thing in M²U library, there is CCTV everywhere and every motion of you is captured)

許冠傑 - 浪子心聲

这首歌唱出了许许多多人的心声。。。有谁又会在意？？？

难分真与假 人面多险诈
几许有共享荣华 檐畔水滴不分差
无知井里蛙 徙望添声价
空得意目光如麻 谁料金屋变败瓦
命里有时终须有 命里无时莫强求
雷声风雨打 何用多惊怕
心公正白壁无瑕 行善积德最乐也
命里有时终须有 命里无时莫强求
人比海里沙 毋用多牵挂
君可见漫天落霞 名利息间似雾化


歌词的意识是：

世事真假难分,险诈的人亦多见.
共享荣华富贵的时候又有多少呢?就像屋檐之间的滴水,分得很清.
那些无知的井底蛙,一心想抬高自己的名誉和身价.
顺境得意时目光如麻,不料转瞬成空,金屋成败瓦.
冥冥中命运自有安排,该有的东西终会得到.若是命中注定得不到的,就不必强求了.
雷声隆隆,风雨交加,不用惊怕.
心地善良,待人公正,就像白璧一样无瑕,行善积德是最快乐的事也.
冥冥中命运自有安排,该有的东西终会得到.若是命中注定得不到的,就不必强求了.
人就像海里的沙粒一样渺小,(家里人)就不用过于牵挂了,
你看,名利就如同那漫天落霞,息间如雾般消散.