l*y
2 楼
各位高人：
小弟想用Arena软件做一个很简单的Single-item的Inventory System 的Simulation，
听上去很简单。但我看了很多资料，也在网上搜索了很久，居然找不到一个例子，很是
挠头。各位高人如果能够给我指点一二，或者给个网上的例子的链接，或者能够提示提
示，小弟万分感激！
小弟想用Arena软件做一个很简单的Single-item的Inventory System 的Simulation，
听上去很简单。但我看了很多资料，也在网上搜索了很久，居然找不到一个例子，很是
挠头。各位高人如果能够给我指点一二，或者给个网上的例子的链接，或者能够提示提
示，小弟万分感激！
C*n
3 楼
还是看wiki的table吧
http://en.wikipedia.org/wiki/Sound_pressure#Examples_of_sound_pressure_and_sound_pressure_levels
Shockwave (distorted sound waves > 1 atm; waveform valleys are clipped at
zero pressure) >101,325 Pa >194 dB
Theoretical limit for undistorted sound at 1 atmosphere environmental
pressure 101,325 Pa ~194.094 dB
Theoretical limit based on Atmospheric pressure records, Min & Max western
Pacific Ocean 1979 (Typhoon Tip) & Agata, U.S.S.R. 1968 87,000 - 108,
400 Pa 192.8–194.7 dB
Krakatoa explosion - unmeasured[5]
Stun grenades 6,000–20,000 Pa 170–180 dB
Rocket launch equipment acoustic tests ~4000 Pa ~165 dB
Simple open-ended thermoacoustic device[6] 12,619 Pa 176 dB
.30-06 rifle being fired 1 m to shooter's side 7,265 Pa 171 dB (peak)
M1 Garand rifle being fired at 1 m 5,023 Pa 168 dB
Jet engine at 30 m 632 Pa 150 dB
Threshold of pain 63.2 Pa 130 dB
Vuvuzela at 1 m 20 Pa 120 dB(A)[7]
Hearing damage (possible) 20 Pa approx. 120 dB
Jet engine at 100 m 6.32 – 200 Pa 110 – 140 dB
Jack hammer at 1 m 2 Pa approx. 100 dB
Traffic on a busy roadway at 10 m 2×101 – 6.32×101 Pa 80
– 90 dB
Hearing damage (over long-term exposure, need not be continuous) 0.
356 Pa 85 dB[8]
Passenger car at 10 m 2×102 – 2×101 Pa 60 – 80 dB
EPA identified level as the level necessary to protect the public from
hearing loss and other disruptive effects from noise, such as sleep
disturbance, stress-related problems, learning detriment, etc.
70 dB[9]
TV (set at home level) at 1 m 2×102 Pa approx. 60 dB
Handheld electric mixer 65 dB
Washing machine, dish washer 50-53 dB
Normal conversation at 1 m 2×103 – 2×102 Pa 40 – 60 dB
Very calm room 2×104 – 6.32×104 Pa 20 – 30 dB
Light leaf rustling, calm breathing 6.32×105 Pa 10 dB
Auditory threshold at 1 kHz 2×105 Pa 0 dB[8
http://en.wikipedia.org/wiki/Sound_pressure#Examples_of_sound_pressure_and_sound_pressure_levels
Shockwave (distorted sound waves > 1 atm; waveform valleys are clipped at
zero pressure) >101,325 Pa >194 dB
Theoretical limit for undistorted sound at 1 atmosphere environmental
pressure 101,325 Pa ~194.094 dB
Theoretical limit based on Atmospheric pressure records, Min & Max western
Pacific Ocean 1979 (Typhoon Tip) & Agata, U.S.S.R. 1968 87,000 - 108,
400 Pa 192.8–194.7 dB
Krakatoa explosion - unmeasured[5]
Stun grenades 6,000–20,000 Pa 170–180 dB
Rocket launch equipment acoustic tests ~4000 Pa ~165 dB
Simple open-ended thermoacoustic device[6] 12,619 Pa 176 dB
.30-06 rifle being fired 1 m to shooter's side 7,265 Pa 171 dB (peak)
M1 Garand rifle being fired at 1 m 5,023 Pa 168 dB
Jet engine at 30 m 632 Pa 150 dB
Threshold of pain 63.2 Pa 130 dB
Vuvuzela at 1 m 20 Pa 120 dB(A)[7]
Hearing damage (possible) 20 Pa approx. 120 dB
Jet engine at 100 m 6.32 – 200 Pa 110 – 140 dB
Jack hammer at 1 m 2 Pa approx. 100 dB
Traffic on a busy roadway at 10 m 2×101 – 6.32×101 Pa 80
– 90 dB
Hearing damage (over long-term exposure, need not be continuous) 0.
356 Pa 85 dB[8]
Passenger car at 10 m 2×102 – 2×101 Pa 60 – 80 dB
EPA identified level as the level necessary to protect the public from
hearing loss and other disruptive effects from noise, such as sleep
disturbance, stress-related problems, learning detriment, etc.
70 dB[9]
TV (set at home level) at 1 m 2×102 Pa approx. 60 dB
Handheld electric mixer 65 dB
Washing machine, dish washer 50-53 dB
Normal conversation at 1 m 2×103 – 2×102 Pa 40 – 60 dB
Very calm room 2×104 – 6.32×104 Pa 20 – 30 dB
Light leaf rustling, calm breathing 6.32×105 Pa 10 dB
Auditory threshold at 1 kHz 2×105 Pa 0 dB[8
s*t
4 楼
要求是英语母语的非华裔外籍人士，联系信箱 [email protected]
r*t
5 楼
是个亚裔mm vo，只看了爸妈主动递上去的给vo的信，什么都没问就过了。。。
据说签证形势非常非常的好。
祝大家的父母都顺利通过！
据说签证形势非常非常的好。
祝大家的父母都顺利通过！
n*g
6 楼
☆─────────────────────────────────────☆
mafia (吗啡亚) 于 (Fri Feb 20 19:13:07 2009) 提到:
高中开始做同学。。。
不知道摩羯女怎么想，反正天蝎男第一眼就被摩羯女吸引，觉得特别，好像那时候就是觉
得好看吧。。。
后来天蝎男发现貌似摩羯女对他也有点意思，二人经常进行一些eye contact...天蝎男偶
尔可以很明显的发觉摩羯女在偷瞄自己，。。。俩人碰面之后摩羯女会笑着低下头做羞涩
状跟天蝎男打招呼......不过天蝎男觉得好像摩羯女对谁都那样...T_T
高中一直就这样过去了，两人算不上知心朋友，但是天蝎男觉得和摩羯女还蛮有默契的
高考完那天摩羯女找天蝎男聊天聊了很久，后来大家一起玩踩脚的游戏，刚好轮到天蝎男
踩摩羯女，摩羯女幽幽地说，使劲儿踩吧，不然以后就没机会了...天蝎男相当迷茫
当时天蝎男至少可以确定自己是喜欢摩羯女的。。。。
后来很夸张，天蝎男和摩羯女竟然去了同一所大学，并且高考完后两人没有再联系过，
填报志愿什么的互相都不知道....算是缘分？？？
假期摩羯女从朋友那里知道天蝎男和她去一
mafia (吗啡亚) 于 (Fri Feb 20 19:13:07 2009) 提到:
高中开始做同学。。。
不知道摩羯女怎么想，反正天蝎男第一眼就被摩羯女吸引，觉得特别，好像那时候就是觉
得好看吧。。。
后来天蝎男发现貌似摩羯女对他也有点意思，二人经常进行一些eye contact...天蝎男偶
尔可以很明显的发觉摩羯女在偷瞄自己，。。。俩人碰面之后摩羯女会笑着低下头做羞涩
状跟天蝎男打招呼......不过天蝎男觉得好像摩羯女对谁都那样...T_T
高中一直就这样过去了，两人算不上知心朋友，但是天蝎男觉得和摩羯女还蛮有默契的
高考完那天摩羯女找天蝎男聊天聊了很久，后来大家一起玩踩脚的游戏，刚好轮到天蝎男
踩摩羯女，摩羯女幽幽地说，使劲儿踩吧，不然以后就没机会了...天蝎男相当迷茫
当时天蝎男至少可以确定自己是喜欢摩羯女的。。。。
后来很夸张，天蝎男和摩羯女竟然去了同一所大学，并且高考完后两人没有再联系过，
填报志愿什么的互相都不知道....算是缘分？？？
假期摩羯女从朋友那里知道天蝎男和她去一
a*a
7 楼
Please drop me a line if you're interested.
s*2
8 楼
帮顶
C*n
9 楼
刚刚用iphone上的sound level meter 测试了一下denon d7000的输出，
用我的笔记本直推d7000,最大音量下，最高分贝数(紧挨着)振膜, 164 dB,足可以致聋
了(
120分贝以上1秒即可以损伤听力)
所以带耳机听音乐一定要小心，一定要确认了音量再带上耳机
耳塞也一样
【在 C********n 的大作中提到】
: 还是看wiki的table吧
: http://en.wikipedia.org/wiki/Sound_pressure#Examples_of_sound_pressure_and_sound_pressure_levels
: Shockwave (distorted sound waves > 1 atm; waveform valleys are clipped at
: zero pressure) >101,325 Pa >194 dB
: Theoretical limit for undistorted sound at 1 atmosphere environmental
: pressure 101,325 Pa ~194.094 dB
: Theoretical limit based on Atmospheric pressure records, Min & Max western
: Pacific Ocean 1979 (Typhoon Tip) & Agata, U.S.S.R. 1968 87,000 - 108,
: 400 Pa 192.8–194.7 dB
: Krakatoa explosion - unmeasured[5]
用我的笔记本直推d7000,最大音量下，最高分贝数(紧挨着)振膜, 164 dB,足可以致聋
了(
120分贝以上1秒即可以损伤听力)
所以带耳机听音乐一定要小心，一定要确认了音量再带上耳机
耳塞也一样
【在 C********n 的大作中提到】
: 还是看wiki的table吧
: http://en.wikipedia.org/wiki/Sound_pressure#Examples_of_sound_pressure_and_sound_pressure_levels
: Shockwave (distorted sound waves > 1 atm; waveform valleys are clipped at
: zero pressure) >101,325 Pa >194 dB
: Theoretical limit for undistorted sound at 1 atmosphere environmental
: pressure 101,325 Pa ~194.094 dB
: Theoretical limit based on Atmospheric pressure records, Min & Max western
: Pacific Ocean 1979 (Typhoon Tip) & Agata, U.S.S.R. 1968 87,000 - 108,
: 400 Pa 192.8–194.7 dB
: Krakatoa explosion - unmeasured[5]
d*y
10 楼
Hi,
Here we have a few experienced EE engieer, we can provide the PCB design
service. Would you please provide more information of your requirements? We
may set up a off-line way to talk about this.
Hope to hearing from you again.
Here we have a few experienced EE engieer, we can provide the PCB design
service. Would you please provide more information of your requirements? We
may set up a off-line way to talk about this.
Hope to hearing from you again.
o*g
11 楼
http://www.expresspcb.com/
There are other websites too.
I don't have experience with them, so would appreciate your sharing after
you find out.
【在 a****a 的大作中提到】
: Please drop me a line if you're interested.
There are other websites too.
I don't have experience with them, so would appreciate your sharing after
you find out.
【在 a****a 的大作中提到】
: Please drop me a line if you're interested.
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