l******h
发帖数: 2 | 1 Highly reputational company with very competitive compensation for all
positions.
Please send in your resume and position/positions you like to apply to my
email address below.
h*******[email protected]
All resumes will be deliver to hiring manager directly. Act fast!
Thanks!
Silicon Engineering Group
Sr. Physical Design Timing Engineer
Timing (STA) Manager
Senior Physical Design Engineer
CAD Manager - Front-End Design and Verification
Sr. CAD Engineer - Place & Route / Physical Design Engineer
Sr. CA... 阅读全帖 |
|
m********1
发帖数: 220 | 2 Title: A wavelet-based data compression algorithm using a vectorial-
intelligent
dynamic bit allocation strategy for power oscillographic records.
Abstract:
In this paper a compression algorithm for oscillographic records in power
systems is proposed. The algorithm is based on three main components: (i)
the
discrete Wavelet Transform (DWT), (ii) a vectorial-intelligent dynamic bit
allocation strategy built upon a self-organizing map (SOM) and (iii) an
efficient entropy coding. The process of dyn... 阅读全帖 |
|
w*****h
发帖数: 1770 | 3 Let’s face it: Being a runner, cyclist, or triathlete goes beyond simply
participating in the sport. It’s an identity, a lifestyle that is more than
just the hours put in during training and racing. It’s what separates us
from the recreational joggers and weekend warriors. You know you’re an
endurance athlete when:
- You’re able to say “I like to push it hard and fast at the end” and
still keep a straight face.
- Your kitchen cabinet has more water bottles than drinking glasses.
- Some people h... 阅读全帖 |
|
c*****s
发帖数: 180 | 4 SAS OnlineTutor®: Advanced SAS®
Combining Data Vertically 7 of 28
backnextlesson menuLearning Pathhelp menu
Using an INFILE Statement (continued)
Using the COMPRESS Function
Note the space between month and 9 in c:\sasuser\month 9.dat. You can
eliminate the space by using the COMPRESS function.
When i= nextfile=
9
c:\sasuser\month 9.dat
10
c:\sasuser\month10.dat
11
c:\sasuser\month11.dat
General form, COMPRESS function:
COMPRESS(source, |
|
z****n
发帖数: 67 | 5 多谢楼上提醒,把楼上的code改成下面的就可以运行啦！
data countmiss;
input var1 var2 var3 var4 var5 var6;
cards;
0 0 0 0 0 1.2
0 0 0 0 5.8 4.7
58.8 0 0 30 0 33.3
100 0 0 100 0 66.6
;
run;
data _null_;
set countmiss;
array v(*) var1-var6;
call symput("list"||compress(_N_),"");
do i=1 to dim(v);
if 0< v(i) <50 then do;
call
symput("list"||compress(_N_),left(trim(symget("list"||compress(_N_))||"
"||"
var"||compress(i))));
end;
end;
run;
%put list1=&list1 ;
%put list2=&list2 ;
%put list3=&list3 ;
%put list4=&lis |
|
A*******s
发帖数: 9638 | 6 最近参加了ACLS renewal。 很多改变， 但最重要的是关于口对口人工呼吸的改变。
尽管我们在医院工作的同僚门可以用bag做人工呼吸， 大多数急救却发生在平时生活中
， 不可能有专业的医护人员。 我就从来没有碰到过一例。 我认为这一改变非常好，
把CPR简单化了， 大家更容易掌握。
如果我们在运动时， 比如打网球时， 有人突然晕倒了， 第一步就是问病人怎么样，
如果没有反应， 马上开始胸部按压。 不用口对口人工呼吸。
（ NO mouth to mouth. No more "look, listen, and feel" for breathing. Just
start compressions.）
别忘了同时打911.
当然在医院，做法可以不同。 不多说了。
（In the hospital, you can have someone bag them right away and intubate
them. You don't have to ignore airway.）
现在强调的是CAB, 不再是ABC. (Chest compressions, airway, ... 阅读全帖 |
|
A*******s
发帖数: 9638 | 7 最近参加了ACLS renewal。 很多改变， 但最重要的是关于口对口人工呼吸的改变。
尽管我们在医院工作的同僚门可以用bag做人工呼吸， 大多数急救却发生在平时生活中
， 不可能有专业的医护人员。 我就从来没有碰到过一例。 我认为这一改变非常好，
把CPR简单化了， 大家更容易掌握。
如果我们在运动时， 比如打网球时， 有人突然晕倒了， 第一步就是问病人怎么样，
如果没有反应， 马上开始胸部按压。 不用口对口人工呼吸。
（ NO mouth to mouth. No more "look, listen, and feel" for breathing. Just
start compressions.）
别忘了同时打911.
当然在医院，做法可以不同。 不多说了。
（In the hospital, you can have someone bag them right away and intubate
them. You don't have to ignore airway.）
现在强调的是CAB, 不再是ABC. (Chest compressions, airway, ... 阅读全帖 |
|
d****y
发帖数: 2180 | 8 呵呵，当然新的CPR protocol 是CAB：
C-A-B
•Compressions: Push hard and fast on
the center of the victim’s chest.
•Airway: Tilt the victim’s head back and lift
the chin to open the airway.
•Breathing: Give mouth-to-mouth or
bag/mask rescue breathing.
不过这道题是旧的，按照ABC的顺序还是要先给breathing啊。按新的话compression还
在airway之前呢。 不过估计类似的题要改了。呵呵。
http://www.choa.org/health-professionals/~/media/CHOA/Documents
Professionals/Physician%20Resources/AHA_Update_2010.ashx
Cardiac Arrest
• Cardiac arrest in ad... 阅读全帖 |
|
y*******n
发帖数: 10103 | 9 我列几个摩托车的：
Honda CBR1000RR 2009
998cc I4
181 hp at 11500 rpm and 83.2 lb-ft at 8700 rpm,
Compression Ratio:12.3:1
BMEP：14.2bar
Yamaha YZF-R1
998cc I4
179.5 hp at 12500 rpm, 84.6 ft. lbs. (11.7 kg-m) @ 10000 rpm
Compression Ratio: 12.7:1
BMEP：14.4bar
APRILIA RSV4
998cc V4 60degree
180 HP (132 kW) at 12,500 rpm
115 Nm at 10,000 rpm
Compression ratio 12.8:1
BMEP：14.47bar
Ducati 1198R
1198cc V2 90degree
134.2 kW (180.0 bhp) @ 9750 rpm
99.1 ft·lbf (134 N·m) @ 7750 rpm
Compression ratio 12.8:1
BMEP：14. |
|
t********6
发帖数: 163 | 10
are you sure? do you own a diesel engine?
diesel in gasoline engine - problem: can not ignite
gasoline in diesel engine - premature ignition, problably just as bad as the
other way around.
"Diesel has a higher boiling point than gas. Its true that diesel engines
use compression alone to ignite the fuel but the chamber is upwards of 1500
degrees. Diesel engines are compressing air anywhere between 15:1 to 25:1
where gasoline engines compress from about 8:1 to 12:1. Gasoline boils at
around 200 d |
|
s********r
发帖数: 2308 | 11 看一个哥们的磨合日程：http://forums.tdiclub.com/showthread.php?t=252501
Rules that apply for the life of the car
-When the engine is cold (below the first 3 white marks at the base of the
temp gage) rev the engine to at least 2,500 rpms.
-When the engine is warmed up (above the first three white marks) Rev the
engine to no less than 3,000 rpms.
The reason for this is to keep the turbo on boost, clear the VNT guide vanes
and apply firm pressure to the rings for optimal sealing against blow-by
gasses. The ri... 阅读全帖 |
|
l*****g
发帖数: 556 | 12 Barely.
My PhD training are fading a lot as well. It almost reduce to one point:
always read / judge by your own.
here is wikipedia link:
http://en.wikipedia.org/wiki/Gasoline
"A high octane rated fuel, such as liquefied petroleum gas (LPG), has a
lower energy content than lower octane rated gasoline[citation needed],
resulting in an overall lower power output at the regular compression ratio
of an engine run at on gasoline. However, with an engine tuned to the use of
LPG (i.e. via higher com... 阅读全帖 |
|
l*****6
发帖数: 7881 | 13 错了。柴油的涡轮和汽油机涡轮目的不一样。柴油机本身内部的compression已经很高
了，本来不用涡轮增压的。之所以用涡轮是为了获得更多的air。汽油的涡轮是真正为
了增压，提高compression。
所以即使柴油机没有turbo，照样是低转速大扭矩，因为它的compression跟高，piston
走的距离就更长，piston stroke就得更长，所以转crankshaft的扭矩就更大一些，但
是更慢一些。这就是为啥低转速大扭矩。跟turbo没关。 |
|
U***J
发帖数: 5998 | 14 This guy said better than what I can, not necessarily for MB diesel, but you
get the drill.
"diesel fuel is a lubricant in itself, low RPMs definitely help drivetrain
and engine components last longer, but diesels last longer because of two
main factors....
number one, they are built tough as hell, they use iron blocks and iron
heads. thick iron has a better fatigue life that aluminum or milled steel.
diesels must sustain a very high compression ratio, so therefore they tend
to make those iron s... 阅读全帖 |
|
f******t
发帖数: 7283 | 15 不参加争吵，这里提供一些关于MDX的信息：
1. 很多人给MDX和TL（SH-AWD版）做过dyno，四个轮的轮上马力大概在280多左右，网
上可以查到很多dyno实测结果，最好的甚至轮上就已经超过300马力。种种迹象表明
Acura低标了马力。从我实际试开TL和MDX的感觉来讲，还有各媒体实测MDX的加速成绩
，我不太相信它们的实际输出只有厂家标称的那个数值。
2. 一些关于那个3.7L V6的信息，抄自官方新闻稿：
ENGINE ARCHITECTURE
The MDX's 3.7-liter V-6 engine employs an inherently smooth-running 60-
degree V-angle. The cylinder block is constructed of aluminum and has high-
silicon aluminum cylinder liners for added weight savings and excellent
cooling. The cylinder heads are cast of lightwei... 阅读全帖 |
|
g********d
发帖数: 19244 | 16 ☆─────────────────────────────────────☆
lilyamao (lilyamao) 于 (Sat Feb 9 22:51:07 2013, 美东) 提到:
前段时间版上嘀咕沃而沃这车没人买什么的，当时就想上来吭一声，这volvo在我们东
北疙瘩还是横行天下的，路上很多见。
这车我开了两年多了，买的时候，仔细根mdx比较了一下，两个车价格差不多，但是同
样价格，mdx配置要好一些，尤其是mdx的内部装修，看上去volvo要好，能方东西的地
方多，这volvo的设计吧，小处上真是没人性， 到现在我都不知道纸巾盒子可以放哪里
，真是的，在车里丢来丢去，最后这盒子总是惨不忍睹。
当时驾驶的时候，操作感也是mdx轻松，动力感觉也是mdx好
至于为什么最后选择了volvo呢， 也没有什么理由，就是年少时候喜欢欧洲车，就这么
着，最后还是奔着年少时候的一个梦想而去了。
开了两年多了，总体感觉还好，没有什么毛病，就是换轮胎的时候小心痛了一下， 两
万多迈就要换了， 一换还得1200美元左右，我以前的mazda，5，6万迈才换一次轮胎，
换一回，好像才40... 阅读全帖 |
|
m********l
发帖数: 791 | 17 第一次在美国修车，cylinder head的valve问题，在dealer那里修理，总共花了1856大
洋，对于我这样的穷学生真是很大的一笔开销。dealer总共claim了11.8个小时的labor
，$98/hour，后来折价到$80/hour，在labor上花了将近1000刀，真心觉得自己被坑了
。本人在农村中的农村念书。
2004年的chevy malibu，10万4千迈左右。上星期发现发动机check灯突然亮了，就去检
查，发现#2 cylinder misfire。中间service advisor和我confirm过两次，第一次是
发现根源问题后问我需不需要继续修复（截止那个时候已经确定的零部件费用和当下
labor费用总共800刀左右），第二次说head需要拿去加工，要再加200刀，都得到我的
肯定。当时我一直认为所有labor会在5-6个小时左右，没想到最后他们claim了11.8个
小时！并且期间service advisor一直都没有向我告知可能的labor费用，只把重心纠结
于零部件。
以下摘抄至invoice statement：
"Found burnt ... 阅读全帖 |
|
j*****g
发帖数: 223 | 18 总结一下面试的准备活动,希望有帮助.
==================== AREAS/TOPICS to study/prep/review ====================
复习的东西还挺多的。比不过刚毕业的呀 :), 脑子不好使了，东西也差不多忘光了...
嘿嘿....
• Sorting
o Bubble/select/insertion/counting/qsort/heap/merge/bst
o Time/space complexity analysis
• Caching design
o Replacement policy (LRU, LFU, NRU, etc…)
o Efficiency/complexity/performance
o Distributed cache
o Hashing
• Multi-thread
o Locking/mutex/semaphore/critical sec... 阅读全帖 |
|
j*****g
发帖数: 223 | 19 总结一下面试的准备活动,希望有帮助.
==================== AREAS/TOPICS to study/prep/review ====================
复习的东西还挺多的。比不过刚毕业的呀 :), 脑子不好使了，东西也差不多忘光了...
嘿嘿....
• Sorting
o Bubble/select/insertion/counting/qsort/heap/merge/bst
o Time/space complexity analysis
• Caching design
o Replacement policy (LRU, LFU, NRU, etc…)
o Efficiency/complexity/performance
o Distributed cache
o Hashing
• Multi-thread
o Locking/mutex/semaphore/critical sec... 阅读全帖 |
|
l*********8
发帖数: 4642 | 20 compress results can be:
1BD
1BC
1CD
1CC
If you think this is not compression, we can use the following example:
ABCBC
ABCBD
ABCCD
ABCCC
compress results can be:
3BD
3BC
3CD
3CC |
|
a**********0
发帖数: 422 | 21 The Unix Commands
其实就是攒了一下网上的资料
# Create a new tar archive.
# the folder dirname/ is compressed into archive_name.tar
tar cvf archive_name.tar dirname/
# Extract from an existing tar archive
tar xvf archive_name.tar
# View an existing tar archive
tar tvf archive_name.tar
# Search for a given string in a file (case in-sensitive search).
grep -i "the" demo_file
# Print the matched line, along with the 3 lines after it.
grep -A 3 -i "example" demo_text
# Search for a given string in all files recur... 阅读全帖 |
|
W***n
发帖数: 11530 | 22 Latest Advances in Internal Combustion Engines
Automakers continue to look to the internal combustion engine (ICE) and its
decades of reliable and resilient service when it comes to offering improved
fuel economy and longer engine life.
May 2014, By Stephane Babcock
Even with all the buzz that surrounds hybrids, hydrogen fuel cells, and the
numerous gaseous alternatives, OEMs are still betting on the benefits of the
constantly improving internal combustion engine (ICE). From its humble
beginning... 阅读全帖 |
|
A***D
发帖数: 64 | 23 Senior Development Engineer
Job Category: Engineering & Science Location: US - California
Job ID #: 27244 Region: Altair - U.S.
Description
Altair empowers client innovation and decision-making through technology
that optimizes the analysis, management and visualization of business and
engineering information. Privately held with more than 2,000 employees,
Altair has offices throughout North America, South America, Europe and Asia/
Pacific. With a 30-year-plus track r... 阅读全帖 |
|
h********n
发帖数: 380 | 24 看你的描述感觉歪打正着买的是garden hose thread。多大的管子？是不是3/4‘’的？
包括supply line的两端。最近改造浴池, 要焊管。到猴敌破买了两个铜管到螺纹的
adapter。当时没注意就顺手拿了两个。回家焊上后要试水的时候, 才发现是npt的。果
然, compression的cap 就拧不上去。以为要返工了, 死马当活马, 接上龙头的nut, 居
然能拧上而且不漏。拿个compression的adapter和水龙头的nut试试, 也能拧上。所以,
水龙头的nut都是compression 和 npt 两用的吗？ since npt is tapering end,
will this connection be prone to leaking? |
|
W********g
发帖数: 610 | 25 设计过压力容器不？知道压力容器多危险不？
Natural Gas Cars Pros my结论，电车是必然，天然气车多余
Pollution Control: This is one of the biggest issues gripping the world
today. The effects of air pollution are of great concern to modern
scientists. If the pollution is not controlled now, we may never be able to
revert the environmental damage we have caused. Natural gas cars are far
less polluting compared to gasoline cars.
Tax Incentives: Not just in America, governments all around the world have
declared tax incentives to consu... 阅读全帖 |
|
N****p
发帖数: 1691 | 26 "The second quarter 2015 market environment remained extremely challenging
for our steel and metals recycling operations," said Mark D. Millett, Chief
Executive Officer. "The ongoing flood of steel imports continued to pressure
steel product pricing to a greater degree than the benefit realized from
lower scrap costs, compressing second quarter steel margins. However, due
to continued solid U.S. steel demand, our second quarter steel shipments
improved, which offset most of the margin compressi... 阅读全帖 |
|
l**e
发帖数: 6 | 27 关于照片的要求可以参照下面的链接：
http://travel.state.gov/pdf/USPassportDigitalImageRequirements.pdf
要求不光是尺寸。还有：
Color--- Must be in color (24 bits per pixel ) in sRGB color space (common
output of most digital cameras).
File Format ---
Must be in the Joint Photographic Experts Group ( JPEG ) file interchange
format (JFIF).
File Size ---
Must be less than or equal to 240 kilobytes.
Compression ---
The image may need to be compressed in order for it to be under the maximum
file size. The compression ratio used |
|
h**l
发帖数: 4883 | 28 最新的guideline里mouth to mouth还是有的。只不过以前是先给2个breaths,再
compression.现在是先compression再给breath.
compression ventilation ratio还是30：2
are
This doesn't apply to hospitalized patients or ER patients. In the hospital,
you can have someone bag them
they aren't |
|
a*o
发帖数: 25262 | 29 买个 Philips Multi Region DVD Player 1080P - upscaling HDMI 什么都可以放,有
USB port...便宜．．．
CD, CD-R/CD-RW, Video CD/SVCD, DVD, DivX, DVD+R/+RW, DVD-R/-RW, DVD-Video
Compression formats - MPEG1, MPEG2, DivX 3.11, DivX 4.x, DivX 5.x, DivX 6.0,
DivX Ultra Playback Media - CD, MP3-CD, MP3-DVD, CD-R/RW, WMA-CD & Audio CD
Compression format - Dolby Digital, MP3, PCM & WMA MP3 bit rates - 32 - 320
kbps Playback Media - DVD+R/+RW, DVD-R/-RW, CD-R/RW, Picture CD, Kodak
Picture CD Picture compression format
http... 阅读全帖 |
|
s*****i
发帖数: 5548 | 30 ☆─────────────────────────────────────☆
xie91 (bob) 于 (Mon Mar 4 19:12:18 2013, 美东) 提到:
发信人: kylin1996 (kylin), 信区: SanFrancisco
标 题: Re: 再谈德州经验 (转载)
发信站: BBS 未名空间站 (Mon Mar 4 17:16:16 2013, 美东)
看见有人说湾区收入高就笑了，给你们科普一下，猴子屯，13-15w年薪非常普通，20w
以上的一大把，加上公司100% match 6-12% 401k， 公司服务到退休有一次性上百万的
pension，还有一周工作四天一周工作五天，每年5周vacation，加州风景再美，这些能
比吗？
☆─────────────────────────────────────☆
delubo (I shall be your eyes!) 于 (Mon Mar 4 19:13:42 2013, 美东) 提到:
求介绍工作，我要跳槽
☆────────────────────────────... 阅读全帖 |
|
z*h
发帖数: 739 | 31 Red wasp sting:
About Red Wasps
Red wasps, also known as paper wasps, make their nests under the eaves of
your house or in or on other structures, as well as plants and trees.
According to Texas A&M's Department of Entomology, only female red wasps can
hurt you, as male wasps lack a stinger. The female red wasp can sting you
repeatedly when she feels her home turf is threatened. If the wasp's nest is
in a place where you and your family frequently traffic, dislodge it using
a high-pressure water... 阅读全帖 |
|
i*********5
发帖数: 19210 | 32 http://www.bicycling.com/training-nutrition/training-fitness/bi
Cyclists are innovators, constantly hunting for an edge. Over the last half-
century, we've tried thousands of methods to become stronger, faster, and
smarter on a bike—many of which have been discarded through the years.
These have endured.
1. To corner, enter wide and exit wide.
2. Brake Less
It sounds counterintuitive, but the harder you yank on the brakes, the less
control you have over your bike. The best riders brake well befo... 阅读全帖 |
|
t*******y
发帖数: 11968 | 33 从RW买的二合一阿迪短裤今天送到, 在家里试了一下, 里面的compression trunk似乎
并没有把大腿包紧, 一点都感觉不到compress的效果, 虽然不至于松垮, 但也不是很贴
身的感觉.
这种二合一短裤就应该是这样的, 还是我应该买更小一号(RW也没得卖)?
或者跑起来的时候, 肌肉充血才会感觉到trunk的 compress效果?
要不就是我自己腿细,不该买这种短裤.
第一次买二合一短裤, 没经验, 只好问些古怪问题了, 请见谅 |
|
g*2
发帖数: 658 | 34 补充几个：
1） Chondromalacia patella （髌软骨软化征） is a common cause of kneecap
pain or anterior knee pain. Often called "Runner's Knee," --Allowing the
inflammation of chondromalacia to settle is the first step of treatment.
Avoiding painful activities that irritate the knee for several weeks,
followed by a gradual return to activity is important. In this time, cross-
training activities, such as swimming, can allow an athlete to maintain
their fitness while resting the knee. The next step in treatment i... 阅读全帖 |
|
g*2
发帖数: 658 | 35 补充几个：
1） Chondromalacia patella （髌软骨软化征） is a common cause of kneecap
pain or anterior knee pain. Often called "Runner's Knee," --Allowing the
inflammation of chondromalacia to settle is the first step of treatment.
Avoiding painful activities that irritate the knee for several weeks,
followed by a gradual return to activity is important. In this time, cross-
training activities, such as swimming, can allow an athlete to maintain
their fitness while resting the knee. The next step in treatment i... 阅读全帖 |
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i*********5
发帖数: 19210 | 36 http://en.wikipedia.org/wiki/Compression_shorts
similar to cycling shorts
A major benefit of compression shorts are that they keep the thigh muscles
warm to prevent muscle strain and fatigue. In addition, there is some
evidence that compression shorts may enhance athletic performance. They are
also used as a way to keep the male genitalia in place.
Another major benefit is that many compression shorts are designed to wick
sweat away from the body to lessen chafing and the onset of rashes. |
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t*********t
发帖数: 4766 | 37 这个主要还是要靠力量练习。compression sleeves (or compression socks) 可能对
放抽筋有一点用。如果小腿拉伤的话，可以平时也穿，包括睡觉。RICE中的C就是
compression. |
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H*******6
发帖数: 602 | 39 请问mm你用过不是compress的mask paper吗？感觉压缩的太耗费花水，希望找些更薄些的
mask。谢谢。
_nkw=compress+mask&_sacat=0&_odkw=compress+mask&_osacat=0&_trksid=p3286
.c0.m27 |
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wh
发帖数: 141625 | 40 潜入深水之前，人需要做什么适应准备？电影里那些人被海底生物托上水面时，那个女
人说：咱们没像平时那样de-compress。就是说他们潜水之前要compress，升到水面之
前要de-compress？怎么做？我光听说不能上升得太快，不然血管会爆破？
还有，潜水艇内的气压是正常的大气压吗？如果潜艇出事故，人游到潜艇外面能承受得
了水压吗？ |
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wh
发帖数: 141625 | 41 是一个得了晚期肺癌的住院医师Paul Kalanithi在生命的最后两年写的手记。在这最后
的两年里，他继续完成医疗培训，人生第一次当上爸爸，"and wrote beautifully
about his experience facing mortality as a doctor and a patient." 去年3月去
世，年仅38岁。今年1月12日，他的手记由Random House出版，书名为《When Breath
Becomes Air》。星期一的New Yorker登载了其中一个片段：
My Last Day as a Surgeon
I hopped out of the CT scanner, seven months since I had returned to surgery
. This would be my last scan before finishing residency, before becoming a
father, before my future became real.
“Wanna take a look, Doc?” the... 阅读全帖 |
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g**o
发帖数: 3033 | 42 If the raw video file is in *.avi, and you simply want to compress it.
There is a free software called VirtualDub for this job, it's less than 1M but
very powerful. You need some video/audio codec to compress the video, chances
are if you are watching downloaded moives, you already have those codec
installed. Go to www.vcdhelp.com, there are many guides on how to use this
software to do video compression/editing. I found it difficult to use for
starters, but once you are familiar with it, it's a |
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R******n
发帖数: 160 | 43 因为Jpeg file是 compressed，loose data, 那假如一台10mp的相机，是不是拍
10mp比拍5mp的效果要好，less compressed(or no compression), more data
retained? 那full megapixel的jpeg和raw比呢，效果会差很多么？ |
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G**Y
发帖数: 33224 | 44 ...
Candès can envision a long list of applications based on what he and his
colleagues have accomplished. He sees, for example, a future in which the
technique is used in more than MRI machines. Digital cameras, he explains,
gather huge amounts of information and then compress the images. But
compression, at least if CS is available, is a gigantic waste. If your
camera is going to record a vast amount of data only to throw away 90
percent of it when you compress, why not just save battery power... 阅读全帖 |
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w**7
发帖数: 5258 | 45 http://www.4-traders.com/FUJITSU-LIMITED-6492460/news/FUJITSU-L
Key Features of MB86S22AA:
Seventh-generation Milbeaut image processing
The chip delivers greatly improved optical correction capabilities through
an updated image processing flow, a new noise filter designed to achieve
balance between resolution and noise suppression, a newly developed circuit
for correcting focus drop-off at the edges, and improved distortion
correction and purple fringing countermeasures. MB86S22AA includes a new... 阅读全帖 |
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P*****u
发帖数: 133 | 46 呵呵，总算有个实践经验丰富的大牛来评论了，不然我这种没咋实践的人说话有点没底
气。咱交流交流？
处理raw的时候有两种丢失信息的途径，一种是clipping, 比如你运算中某个channel
算的结果超过16bit 了，那可能这结果都clip 在16bit 顶上，所有超过16bit的信息你
就都丢了。 另外一种是rounding, 比如你本来算得结果应该是floating point 有小数
点的，可是因为你处理时必须用integer, 结果只能round up, round up 次数多了你的
信息也丢了，最后图像会缺少granularity，表现的posterized。
总的来说用大色域的color space 对clipping artifacts 有帮助，但是对rounding
artifacts 应该是有害处的。
现在假设你的raw 文件是以12 bit 存储的， raw pipeline 的运算是在16 bit 空间里
运算的，最后显示的时候要在8bit sRGB的显示器上看。
如果你原来的raw 里有特别saturated red, 读raw 的时候 R channel... 阅读全帖 |
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e*******e
发帖数: 6165 | 47 严肃的解答一下，根据wiki解释：
“A 2007 study found that breasts move in three planes of motion during
exercise. This study concluded that encapsulation bras are more effective
than compression bras at reducing total breast motion during exercise
because encapsulation bras reduce motion in two of the three planes, while
compression bras reduce motion in only one plane”
这种束胸应该算是compression bra，以压扁为其主要目的，只能减低一个方向的
motion |
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c**i
发帖数: 6973 | 48 You wrote, "But I read compression is way more important than giving breaths
."
It is true. Please read
Cardiopulmonary resuscitation
http://en.wikipedia.org/wiki/Cardiopulmonary_resuscitation
(section 2.2 Compression-only resuscitation/cardiocerebral resuscitation (
CCR))
We learned of that in Taiwan back in 1970s, 1980s. No physicians I knew of
did mouth-to-mouth ventilation. And chest compression alone by myself alone
saved several.
* * * |
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C********n
发帖数: 6682 | 49 。。。。。
无知不是你的错，出来丢人就不对了
md无损？
你哪辈子听说的？
from wiki
Sony's ATRAC codec differs from uncompressed PCM in that it is a
psychoacoustic lossy audio data compression scheme, so decompression of the
compressed signal will not yield the original signal, although the
compressed signal may sound identical to the original to the listener. The
latest version of Sony's ATRAC is ATRAC3plus. Original ATRAC3 at 132 kbit/s
(also known as ATRAC-LP mode) is the format used by Sony's Connect audio
download store. ATR |
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