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全部话题 - 话题: compression
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w*******y
发帖数: 60932
1
Link:
http://search.rockbottomgolf.com/dealoftheday.html
Make yourself look big without the juice!
Use code Infinity7off for 7% off and chose 'Ground Saver' Shipping to bring
final price to $11.54 Shipped.
Idealistic for use when weightlifting with non-slip gel pads for extra
gripReinforced padding in appropriate areas
Targeted support
Compression in arms, abs and lower back
Strategically placed non-slip gel print for grip
w*******y
发帖数: 60932
2
Link:
http://www.botachtactical.com/blticoloslte.html
Long Sleeve Compression T-shirt
Tight fit allows overlayering in cold climates. Set-in sleeves allows
unrestricted movement. Qwik-Dri Technology. 85% Nylon/15% Spandex.
w*******y
发帖数: 60932
3
Went to Sports Authority and saw these on sale for 40% off, with limited
colors and sizes. Their webstore pretty much has all colors and sizes in
stock, and only $2.99 for shipping and option for free 2day shipping if you
use shoprunner.
Mens: Link:
http://www.sportsauthority.com/product/index.jsp?productId=1130 hyperwarm&origkw=nike hyperwarm&pg=2&parentPage=search
Womens: Link:
http://www.sportsauthority.com/product/index.jsp?productId=3975 hyperwarm&origkw=nike hyperwarm&parentPage=search
I h... 阅读全帖
l**p
发帖数: 474
4
来自主题: _Graphics版 - 关于“texture compression”的话题
texture compress is used to save the memory usage for the texture maps at the
expene of image quality.
It would be useful for low end user if the texture storage is limited.
But I am not in thsi area. You may find more infomation online.
Is this realted to you research ?

t******q
发帖数: 117
5
【 以下文字转载自 EE 讨论区,原文如下 】
发信人: quicklogic (兔八哥), 信区: EE
标 题: Re: 请问DCT可用于IMAGE COMPRESSION的关键原因是什么?
发信站: Unknown Space (Thu Aug 21 10:57:00 2003) WWW-POST
transform
The basis function should decorrelate the image. That is to say, the output of
the transform should be a sparse matrix where the energy of the image can be
represented by a few coefficients, the fewer, the better.
t******q
发帖数: 117
6
【 以下文字转载自 EE 讨论区,原文如下 】
发信人: quicklogic (兔八哥), 信区: EE
标 题: Re: 请问DCT可用于IMAGE COMPRESSION的关键原因是什么?
发信站: Unknown Space (Thu Aug 21 10:57:00 2003) WWW-POST
transform
The basis function should decorrelate the image. That is to say, the output of
the transform should be a sparse matrix where the energy of the image can be
represented by a few coefficients, the fewer, the better.
t******q
发帖数: 117
7
【 以下文字转载自 EE 讨论区,原文如下 】
发信人: leizj (lilith), 信区: EE
标 题: Re: 请问DCT可用于IMAGE COMPRESSION的关键原因是什么?
发信站: Unknown Space (Thu Aug 21 11:01:04 2003) WWW-POST
在图像压缩中选用 DCT 事多方面均衡的结果。主要有一下几点考虑:
1。从时域到频域变换的目的是减少像素在时域的相关性,同时将能量
集中到为数不多的几个 DCT coefficients 上。 DCT 在这方面
不是最好,但是已经是仅次于最好的了。
2。算法实现的复杂度。因为 DCT 容易实现,快速算法有很多。好像
一个8*8的矩阵通过十几次加减运算就可以得到其 DCT。 其实
视频和图像压缩的标准都是为了针对硬件实现而制定的,而不是考
虑软件的实现。这是很多刚入门的人往往容易忽略的一点。快速
的DCT算法可以非常容易地由硬件实现。
3。DCT 是正交单位变换,而且是线性的。其他的特性包括时域和频
域的能量守恒。而且 DCT(0,0) 等於时域信
t******q
发帖数: 117
8
【 以下文字转载自 EE 讨论区,原文如下 】
发信人: nevermind (剧中人), 信区: EE
标 题: Re: 请问DCT可用于IMAGE COMPRESSION的关键原因是什么?
发信站: Unknown Space (Thu Aug 21 11:24:19 2003) WWW-POST
mark!
the
DWT,
t******q
发帖数: 117
9
【 以下文字转载自 EE 讨论区,原文如下 】
发信人: TigerJade (小人莫不有才), 信区: EE
标 题: Re: 请问DCT可用于IMAGE COMPRESSION的关键原因是什么?
发信站: Unknown Space (Thu Aug 21 14:27:08 2003) WWW-POST
I agree with your first 2 points. But research work cannot be limited by the
standard. Who can know the hardware complexity even before the algorithm has
ever been proposed? At the same time, the complexity can be supported by the
hardware is increasing. In the research, we are focusing on the futures
application. No one can say is a algorith
t******q
发帖数: 117
10
【 以下文字转载自 EE 讨论区,原文如下 】
发信人: gxk (早睡早起), 信区: EE
标 题: Re: 请问DCT可用于IMAGE COMPRESSION的关键原因是什么?
发信站: Unknown Space (Thu Aug 21 18:26:42 2003) WWW-POST
~~~~
should be space domain. Otherwise we are talking about
time redundom which could be reduced by motion prediction and
motion compensation.
A DCT can be done by 2 FFT, this is the reason why it is
chosen at hardware level.
And your own transform matrix must be 完备的。
the
DWT,
t******q
发帖数: 117
11
【 以下文字转载自 EE 讨论区,原文如下 】
发信人: mizhael (mizhael), 信区: EE
标 题: Re: 请问DCT可用于IMAGE COMPRESSION的关键原因是什么?
发信站: Unknown Space (Thu Aug 21 22:22:33 2003) WWW-POST
什么是“完备的”呀?
t******q
发帖数: 117
12
【 以下文字转载自 EE 讨论区,原文如下 】
发信人: leizj (lilith), 信区: EE
标 题: Re: 请问DCT可用于IMAGE COMPRESSION的关键原因是什么?
发信站: Unknown Space (Fri Aug 22 09:19:36 2003) WWW-POST
在国外学的图像处理, 不知道对应的中文应该翻译成什么。我想说的是 Spatial
Domain.
d******r
发帖数: 16947
13
来自主题: Pingpong版 - 包子急问版上的POWERPOINT高手!
http://office.microsoft.com/en-us/powerpoint-help/reduce-the-si
Reduce the size of your PowerPoint files
By Steve Rindsberg, Microsoft MVP and co-creator of PPTools
Applies to
Microsoft Office PowerPoint® 2003
Microsoft PowerPoint® 2000 and 2002
So you and PowerPoint have created the Presentation That Ate Cincinnati.
Your file size has gone spiraling out of control and you can't figure out
why.
I live in Cincinnati. I kinda like it here, so I want to help.
There are quite a few reasons ... 阅读全帖
s********u
发帖数: 748
14
小二没告诉你其实啥atkinson cycle是hybrid标配
wiki给的list
Ford C-Max (front wheel drive / US market) hybrid & plug-in hybrid models
Ford Escape/Mercury Mariner/Mazda Tribute electric (front- and four-wheel
drive) with a compression ratio of 12.4:1
Ford Fusion Hybrid/Mercury Milan Hybrid/Lincoln MKZ Hybrid electric (front-
wheel drive) with a compression ratio of 12.3:1
Honda Accord Plug-in Hybrid[5]
Honda Accord Hybrid (front-wheel drive)
Hyundai Sonata Hybrid (front-wheel drive)
Infiniti M35h Hybrid (rear-wh... 阅读全帖
p*****2
发帖数: 21240
15
来自主题: JobHunting版 - 报个offer@FG,回报版面

Some engineers got tired of dealing with all the different ways of encoding
status messages, so they decided to invent their own. In their new scheme,
an encoded status message consists of a sequence of integers representing
the characters in the message, separated by spaces. Each integer is between
1 and M, inclusive. The integers do not have leading zeroes. Unfortunately
they decided to compress the encoded status messages by removing all the
spaces!
Your task is to figure out how many differ... 阅读全帖
p*****2
发帖数: 21240
16
来自主题: JobHunting版 - 报个offer@FG,回报版面

Some engineers got tired of dealing with all the different ways of encoding
status messages, so they decided to invent their own. In their new scheme,
an encoded status message consists of a sequence of integers representing
the characters in the message, separated by spaces. Each integer is between
1 and M, inclusive. The integers do not have leading zeroes. Unfortunately
they decided to compress the encoded status messages by removing all the
spaces!
Your task is to figure out how many differ... 阅读全帖
l********k
发帖数: 14844
17
自己顶一个:afio
docstore.mik.ua/orelly/unix3/upt/ch38_05.htm
There are good arguments both for and against compression of tar archives
when making backups. The overall problem is that neither tar nor gzip is
particularly fault-tolerant, no matter how convenient they are. Although
compression using gzip can greatly reduce the amount of backup media
required to store an archive, compressing entire tar files as they are
written to floppy or tape makes the backup prone to complete loss if one
block of th... 阅读全帖
f****l
发帖数: 8042
18
来自主题: Military版 - 湖南4岁男童活活噎死 视频慎入
first aid: under 1 year
conscious baby
1. Lay the infant facedown on your forearm, resting your arm on your thigh
to hold her steady. Support her chin firmly with one hand, and be sure her
head and neck are lower than her torso.
2. Using the heel of your free hand, deliver five quick blows right between
her shoulder blades.
3. If she doesn't cough up the object, turn her onto her back. Rest her on
your forearm, using your thigh to support her body and your hand to steady
her head and neck. Make ... 阅读全帖

发帖数: 1
19
In a case of an old idea gaining new legs, Achates Power says it expects the
first commercial use of its unique two-stroke, opposed-piston design to
occur by 2020, following an initial in-vehicle demonstration in early 2018.
It’s based on a design that’s well over 100 years old.
Achates, aiming to power both heavy-duty trucking and passenger vehicles,
won’t say which will be the first to hit the streets using its technology,
but much of the company’s development work so far appears tilted toward... 阅读全帖
h**l
发帖数: 4883
20
你写的已经挺具体了吧。。。
反正首先是check victim responsiveness and breathing。
都没有的话叫身边的人打911和去拿AED。early defibrillation 很重要。 AED在很多
公共场合都有, 所以对于layman来说知道要用AED是很关键的。
check pulse for 5 seconds, no more than 10 seconds
然后马上开始30个compression, compression rate 要在100次每分钟以上,具体节奏
参照歌曲staying alive的节奏. compression depth要至少2inch.每次compression要
做到chest fully recoils才算有效。
然后做head tilt chin lift 打开airway. 捏住鼻子,嘴seal住病人的嘴,给2次
breaths,要能见到chest rise为准。
然后继续30个compression+2次breaths, 5个cycle后再check breathing.不行的一直继
续这个30 compre... 阅读全帖
t******q
发帖数: 117
21
来自主题: _Graphics版 - hehe, my two cents
It is a little bit off road, they talk about image, I move to
video compression more.
Why? because in video compression, though the transformation part is still
the heart of compession, but it is not the most time consuming part of
entire compression scheme. And it does not control over the compression
mostly.
For speed/compression issue, the predict coding is the killer part.
First, therer are lossles compression and lossy compression.
Lossless compression is used in medical image processing, s
y*h
发帖数: 25423
22
来自主题: Automobile版 - 差点加错汽油了!!

不过你要是真的加了汽油到柴油机里还是不要发动,立即清洗比较稳妥。下面这篇文章
讲得很详细:
What happens if you inadvertently fill your diesel car with gasoline?
Whether you're new to diesel ownership, or might have both diesel and
gasoline powered vehicles in your own personal fleet, it can be oh-so-easy
to accidentally mis-fuel your diesel tank with gasoline. Filling your fuel
tank is such an ordinary and mundane task, that just a moment's inattention
can cause you to grab the wrong nozzle and pump away. Bad enough if you
realize the mis... 阅读全帖
A***n
发帖数: 8859
23
来自主题: Automobile版 - passta tdi 自动挡新车如何磨合
不要过长时间一个速度,别跑太快,一千英里内,ok。
如果要专业些,读下文:
Updated 10/2012
New generation TDI's with Common Rail/DPF/SCR and those with DSG
transmissions
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 ... 阅读全帖
m**p
发帖数: 2471
24
来自主题: Biology版 - 多伦多大学LU, Jun博士论文摘要
http://books.google.com/books/about/Surface_Tension_of_Pulmonar
Surface Tension of Pulmonary Surfactant Systems
Pulmonary surfactant facilitates respiration by reducing the surface tension
in the alveoli. To study the surface activity of pulmonary surfactant films
under physiologically relevant conditions, several experimental methods
were developed to measure surfactant film interfacial tension with
Axisymmetric Drop Shape Analysis (ADSA). Using a pendant drop method, the
film formation of a th... 阅读全帖
j********t
发帖数: 201
25
来自主题: Statistics版 - ask for help on one SAS code
you might just read in all data first then process each record afterwards
using character functions or Perl Regular Expressions.

data one;
input title $ Pet_owner $ pet $ number;
length name $20.;
name=compress(title)||' '||compress(pet_owner);
cards;
Mr. Black dog 2
Mr. Black bird 1
Mrs. Green fish 5
Mr. White cat 3
;
run;
proc print;
title "data one: if one(or more) space(s) always exist(s) between the title
and the name";
run;
data two;
input title $ Pet_owner $ pet $ number;
length nam... 阅读全帖
A*******s
发帖数: 9638
26
bladelee is right. I just did my renewal for ACLS.
No more mouth to mouth CPR . This was changed in 2008, but it is being re-
emphasized. If you see someone down in the parking lot, ask them if they are
ok, if they don't respond, just start chest compressions.
NO mouth to mouth.
No more "look, listen, and feel" for breathing. Just start compressions. This doesn't apply to hospitalized patients or ER patients. In the hospital, you can have someone bag them
right away and intubate them. You don't... 阅读全帖
p********y
发帖数: 5141
27
来自主题: Running版 - 小声问个关于跑步衣服的问题
在endurance athletes(ultra running, ironman-distance triathlon)中比较流行
compression clothes.有比赛时候用的,也有跑后恢复用的。好处如下。
Compression Tights: The Benefits
Increased recovery speed: Used as part of the 'RICE' regime (Rest, Ice,
Compress, Elevate), compression leggings - or tights - can rapidly reduce
recovery time and minimise delayed onset muscle soreness.
Less wasted energy: Tights reduce muscle oscillation, particularly through
the quad and calf.
Less cramp: Lactic acid is flushed out by the squeezing of... 阅读全帖
y*********e
发帖数: 7269
28
来自主题: PhotoGear版 - E-P5 full specs zz
最牛的革命机了
亮点,比EM5改进的五轴防抖和AF
新的小范围AF,是革命机Contrast AF的一大突破,有望比Phase AF更小更精准。
Super Spot AF: Selectable from center of enlarge view(0.02% – 0.16% in
view image)
内置wifi功能结合smart phone,弥补了之前没有GPS,wireless shutter release的缺
陷,上传照片更方便。
唯一遗憾就是没有三防了。
http://www.43rumors.com/
Model name: E-P5
Product type: Micro Four Thirds interchangeable lens system camera
Memory : “SD Memory Card*1 (SDHC, SDXC, UHS-I compatible, Eye-Fi Card
compatible*2 )
*1: Class 6 or higher is recommended for Movie shooting.... 阅读全帖
q*p
发帖数: 963
29
来自主题: Hardware版 - 7zip到底靠谱不靠谱啊?
源于lzma,但青出于蓝而胜于蓝。
7z是LZMA,xz是LZMA2。
xz现在大行其道。
XZ Utils
XZ Utils is free general-purpose data compression software with high
compression ratio. XZ Utils were written for POSIX-like systems, but also
work on some not-so-POSIX systems. XZ Utils are the successor to LZMA Utils.
The core of the XZ Utils compression code is based on LZMA SDK, but it has
been modified quite a lot to be suitable for XZ Utils. The primary
compression algorithm is currently LZMA2, which is used inside the .xz
container fo... 阅读全帖
o****o
发帖数: 8077
30
you may want to avoid those loopy macros in practice;
*********************;
proc sql noprint;
select cat('table ', compress(name),' /out=', compress('_'||name), '(
where=(',compress(name),'=1));')
into :tablestmt separated by ' '
from onevars
;
select (compress('_'||name)||'(in=_'||name||'drop='||name||')')
into :setstmt separated by ' '
from onevars
;
select ('if '||compress('_'||name)||'=1 then varname='||compress('"'||
name||'"')||'
b****i
发帖数: 108
31
来自主题: Automobile版 - a good article on "no-start diagnosis" zz(3)
Compression
You can test engine integrity with a compression gauge, but the starter's cr
anking speed will give a trained ear an indication of low cylinder compressi
on. If you hear a fast-cranking engine, test the compression to see where th
e problem is. Low compression does not always indicate an internal engine pr
oblem.
After identifying low compression, a leakdown test is a good follow-up step.
On some engines, it may be convenient to check cam timing before engine com
pression. This depen
m**********e
发帖数: 12525
32
来自主题: Automobile版 - brake line自己换可行吗?
可以自己换
刹车管autozone有卖,很便宜,全部换代价太大,最好的办法是把烂掉的部分切掉
换成新管,所以你需要的工具有:
1. rotary tool,menard卖20块钱左右,你也可以从autozone借切刀,免费但是不好用,
没rotary tool好用。
2.刹车管,最多10块钱,按长度买
3.compression fit一对,autozone也有买,2-3块钱一个:
方法是切掉烂掉的,然后再切一根一样长的新管,用compression fit接上,管子可以
用手弯,跟弯铁丝差不多。
compression fit网上反对声浪很大,说是不安全,其实不然,只要安装到位,
compression fit是很安全的,不但连祖国的jet engine里面的液压油管都是用
compression fit的,连美帝航天飞机里面用的也是这玩意
E*********o
发帖数: 5965
33
来自主题: Automobile版 - 日本人为什么收高价却用烂钢
转一个:
铸铁发动机,我也说两句 (日本车托看完后闭嘴吧,别老拿全铝发动机说事)
实在看不下去了,一群开着日车的小样如此得瑟。。。。
以下是我在wikipedia.com上原文粘贴下来的,关于EA888发动机的技术参数。
EA888
160 hp (119 kW) - 170 hp (127 kW) 1.8 TFSI I4
Configuration
1798 cc water cooled inline 4, bore 82.5 mm/stroke 84.1 mm
Head
9.6:1 compression ratio, toothed chain driven camshaft, continuous adjusting
intake
Block
88 mm cylinder spacing, 33 kg grey cast iron (GJL 250) <----------看见了吗?
33千克灰铸铁 (GJL 250)
Crankcase
two toothed chain driven counter-rotating balancing shafts suppressin... 阅读全帖
d********l
发帖数: 4221
34
找到一个关于compressor的说明
What's a Compressor?
Ask professional sound engineers what their favorite piece of external proce
ssing gear is and the response will be virtually unanimous – dynamic compre
ssion. What's compression? Glad you asked. Compression limits the dynamic ra
nge of a signal, lowering the level of loud sounds and turning up softer sou
nds to achieve sonic balance. But applying compression is a delicate art tha
t many novice, and even intermediate sound techs have difficulty mastering.... 阅读全帖
s********x
发帖数: 914
35
How many files in total should I submit?
I submitted one executable jar file and one compressed zip file of the code.
I am getting reply:
your solution to the peaktraffic puzzle (received on May 4, 2011, 8:25 pm)
could not be built and/or run. For security reasons, I cannot give out exact
errors. Please double check your submission for the following things:
- If you compressed your solution, it needs to be compressed either as a .
zip file, a .tgz file, .tar.gz, or a .tar.bz2 file.
- Furthermore... 阅读全帖
f*********r
发帖数: 242
36
来自主题: Living版 - 水龙头的接口螺纹是两用的?
接过水管的可能知道, 螺纹有npt和compression两种。多数水门是compression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?
m****9
发帖数: 26
37
来自主题: Medicine版 - 请帮忙看下这个MRI 报告
由于最近几个月来,一直头晕,四肢乏力,四肢发麻,去看了neurologist, 做了头部
,颈椎的MRI,刚拿到报告,医生说没有大的问题,需要进一步去看神经外科,但是我
看到头部MRI的报告显示有问题,这个让我很担心。 然后这个颈椎的问题能引起头晕么
? 报告上写的是没有脊髓和神经压迫。 请帮忙看看怎么回事? 暂时我还没拿到片子
,如果有需要,等拿到片子后,我也可以上传。 谢谢。
头部的报告内容:
MRI BRAIN WITHOUT AND WITH CONTRAST
History: Headaches, unsteady gait, and bilateral leg greater than arm
numbness. Evaluate for demyelinating disease.
Technique: Precontrast T1 axial, DWI axial, GRE T2 axial images were
obtained. Postcontrast 3 mm thick T2 axial, T1 axials, 3-D T1 series and 3-D
T... 阅读全帖
h******d
发帖数: 4761
38
来自主题: GunsAndGears版 - 有了这个估计可以跟棕熊拼一把了。
http://www.knifecenter.com/item/WIWASPKATB/wasp-injection-knife
WASP Injection Knife 5-1/4" Blade, Tapered Grip (Black)
Click to Enlarge No Reviews, Be the first to review this item!
Part Number: WIWASPKATB
Manufacturer: WASP Injection Systems Price:$499.95 Select Qty: 1 2 3 4 5
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Overview Reviews WIWASPKATB: Model 12 - Tapered Grip (Black)
WASP Injection Systems
A... 阅读全帖
b*****l
发帖数: 9499
39
来自主题: Linux版 - 继续批评 gentoo
看这个:
[blocks B ] ress-Base-2.017" is blocking perl-core/IO-Compress-2.020)
[blocks B ] perl-core/IO-Compress-Zlib ("perl-core/IO-Compress-Zlib" is
blocking perl-core/IO-Compress-2.020)
[blocks B ] x11-drivers/xf86-video-cyrix ("x11-drivers/xf86-video-cyrix"
is blocking x11-base/xorg-server-1.5.3-r6)
[blocks B ] app-text/poppler-utils ("app-text/poppler-utils" is blocking
app-text/poppler-bindings-0.10.5-r1, app-text/pop
L****8
发帖数: 3938
40
来自主题: Programming版 - 从数据压缩角度理解CNN
最高级的应该是 model based compression
CNN最近几年研究 很多文章都是说学习出来了各种模型参数
比如pose 笑脸 苦练 等等 对应最后一层卷积出来的特征
https://www.cs.cmu.edu/~guyb/realworld/compression.pdf
We briefly present one last transform coding scheme, model based compression
. The idea here is to characterize the source data in terms of some strong
underlying model. The popular example here is faces. We might devise
a general model of human faces, describing them in terms of
anatomical parameters like nose shape, eye separation, sk... 阅读全帖
c*******9
发帖数: 9032
41
来自主题: Physics版 - 大牛們評判一下這個
Summation of Tesla's Dynamic Theory of Gravity
An excerpt from: Occult Ether Physics
by William R. Lyne

From: Don Allen
d**[email protected]
According to Tesla's lecture prepared for the Institute of Immigrant Welfare
(May. 12, 1938), his "Dynamic Theory of Gravity" was one of two far
reaching discoveries, which he "...worked out in all details", in the years
1893 and 1894. The 1938 lecture was less than five years before his death.
More complete statements concerning these discoveries can ... 阅读全帖
o****o
发帖数: 8077
42
来自主题: Statistics版 - SAS Technical Interview Questions
ZT from :
http://www.globalstatements.com/sas/jobs/technicalinterview.htm
*****************************************
SAS Technical Interview Questions
You can go into a SAS interview with more confidence if you know that you
are prepared to respond to the kind of technical questions that an
interviewer might ask you. I do not provide the specific answers here, both
because these questions can be asked in a variety of ways and because it is
not my objective to help those who have little actual int... 阅读全帖
a******p
发帖数: 414
43
来自主题: Statistics版 - 请教一个call symput的问题
下面是我的code:
data new;
set old end=last;
retain total;
if _n_=1 then all=0;
call symput(trt,compress(count));
all=all+count;
if last then call symput('all', compress(all));
run;
这里trt 是treatment,有四个值。
我想请问,call symput(trt,compress(count)); 不能用在macro中么?只能用在data
step?
下面是我想要的。
%macro count(data=,var=);
data new;
set old end=last;
retain total;
if _n_=1 then all=0;
call symput(trt,compress(count));
all=all+count;
if last then call symput('all', compress(all));
run;... 阅读全帖
a******p
发帖数: 414
44
来自主题: Statistics版 - 请教一个call symput的问题
下面是我的code:
data new;
set old end=last;
retain total;
if _n_=1 then all=0;
call symput(trt,compress(count));
all=all+count;
if last then call symput('all', compress(all));
run;
这里trt 是treatment,有四个值。
我想请问,call symput(trt,compress(count)); 不能用在macro中么?只能用在data
step?
下面是我想要的。
%macro count(data=,var=);
data new;
set old end=last;
retain total;
if _n_=1 then all=0;
call symput(trt,compress(count));
all=all+count;
if last then call symput('all', compress(all));
run;... 阅读全帖
m****9
发帖数: 26
45
来自主题: Medicalpractice版 - 请帮忙看下这个MRI 报告
由于最近几个月来,一直头晕,四肢乏力,四肢发麻,去看了neurologist, 做了头部
,颈椎的MRI,刚拿到报告,医生说没有大的问题,需要进一步去看神经外科,但是我
看到头部MRI的报告显示有问题,这个让我很担心。 然后这个颈椎的问题能引起头晕么
? 报告上写的是没有脊髓和神经压迫。 请帮忙看看怎么回事? 暂时我还没拿到片子
,如果有需要,等拿到片子后,我也可以上传。 谢谢。
头部的报告内容:
MRI BRAIN WITHOUT AND WITH CONTRAST
History: Headaches, unsteady gait, and bilateral leg greater than arm
numbness. Evaluate for demyelinating disease.
Technique: Precontrast T1 axial, DWI axial, GRE T2 axial images were
obtained. Postcontrast 3 mm thick T2 axial, T1 axials, 3-D T1 series and 3-D
T... 阅读全帖
y*******n
发帖数: 10103
46
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.... 阅读全帖
w********2
发帖数: 632
47
来自主题: Military版 - 1910年的武汉有多牛
An air-cooled rotary that powered a number of successful World War I
aircraft
History
The rotary engine is unique in that, unlike fixed radial engines, it has a
stationary crankshaft bolted to the firewall, with everything else (
cylinders, crankcase, propeller) all rotating. The rotary in its original
form is extinct, with the term now being used to describe "Wankel" rotary
combustion engines such as those built by Mazda. Though automotive and
motorcycle rotaries were built in the United State... 阅读全帖
l******h
发帖数: 2
48
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
G******i
发帖数: 5226
49
☆─────────────────────────────────────☆
harry123108 (harry) 于 (Tue Aug 2 01:13:32 2011, 美东) 提到:
认识一女生,国内小本,这边PHD,偏生物类专业。去年校园一世界500强大公司面试,
100多个人面试,结果4-6个人选中,她是其中一个。据她说以后在公司做的跟她现在做
的PHD课题也不是很相关。
女生长得还行,时尚会打扮,英语中等偏上水平。
至今没有论文发表,没专利和其他任何已经发表的东西,PHD校园面试时候才第三年,
今年第四年毕业去那家公司。
不知道那家公司看中她什么。那么多人面试,还有很多美国人,男女都有。
是不是国女比国男就是好找工作,哪怕专业不好,只要长得还行的是不是都不难找呢?
求讨论!
☆─────────────────────────────────────☆
vsfan (小饭) 于 (Tue Aug 2 01:22:34 2011, 美东) 提到:
Big boob?

☆─────────────────────────────────────☆
... 阅读全帖
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