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全部话题 - 话题: scalings
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c*******t
发帖数: 174
1
来自主题: ME版 - 请问,autocad里scale的原理
请问,autocad里scale的原理,它是改变什么达到放大,缩小的目的?是长度还是坐标?
或者别的?如果是长度,请问如何获取物体的长度,宽,高度?谢谢。
x***[email protected]
s********d
发帖数: 36
2
完全不了解啊
请问nano scale的tribology 这个课题如何
phd做这个方向五年后能找到工作吗?
最近要答复一个教授的说 学校到是不错的。。
冰天雪地裸体跪求答复啊~~
e******y
发帖数: 47
3
老年抑郁量表(GDS)
测题数目:15题
简介:老年抑郁量表(the Geriatric Depression Scale)由Brink等(1982)创制,
是专用于老年人的抑郁筛查表。
GDS以15个条目代表了老年抑郁的核心,包含以下症状:情绪低落、活动减少、易激惹
、退缩、痛苦的想法,对过去、现在与将来.
注:这个量表现有30项、15项和4项这3个版本。本版本为15项:
选择最切合您一周来的感受的答案,在每题后[ ] 内答“是”或“否”。
1、 [ ] 你对生活基本上满意吗?
2、 [ ] 你是否放弃了许多活动和兴趣爱好?
3、 [ ] 你是否觉得生活空虚?
4、 [ ] 你是否常感到厌倦?
5、 [ ] 你是否大部分时间感觉精神好?
6、 [ ] 你是否害怕会有不幸的事落到你头上?
7、 [ ] 你是否大部分时间感到快乐?
8、 [ ] 你是否常感有无助的感觉?
9、 [ ] 你是否愿意呆在家里而不愿去做些新鲜事?
10、[ ]
w****a
发帖数: 155
4
large scale Monte Carlo simulation都会遇到哪些技术难点?
f*********k
发帖数: 3
5
比如Neural Network Training Algorithm中的著名的Moller的SCG(Scaled Conjugate
Gradient)训练算法
http://pages.cs.wisc.edu/~huangyz
w****a
发帖数: 155
6
large scale Monte Carlo simulation都会遇到哪些技术难点?
N******n
发帖数: 3003
7
来自主题: Statistics版 - 关于SVM 数据scale的问题

后,
scale的目的是让所有的variable对最后的Model的影响在一个标尺内。
s*******y
发帖数: 1739
8
来自主题: Medicalpractice版 - 有没人和我一样觉的那个PAIN SCALE很傻
早就想写个这方面贴子了,也不知道发在这里对不对,我在临床经常碰上要用PAIN SACLE
,觉得好STUPID,我发现一是每个人疼痛标准不一样,另一个就是个人喜好不同,同一个病
人总是愿意用同一个数来表达自己疼痛指数,比如我经常会遇见病人会说我疼痛指数是"
8",但你就给我一片止痛药就行,这种时候我会提醒他,你上次是"8"的时候,你都吃两片
的,但他还会坚持他的想法,这显然说明"8"不能代表他真的那么疼,而是他喜欢那个数,
或随便说说而已.要是遇上DRUG ABUSER的话,那PAIN SCALE就基本没用,而美国理念是疼
痛是个感觉,必须要相信疼痛,而不能怀疑病人的疼痛,更不能怀疑DRUG ABUSER的疼痛,
即使他们是到点就要磕药的.
s*******y
发帖数: 1739
9
来自主题: Medicalpractice版 - 有没人和我一样觉的那个PAIN SCALE很傻
早就想写个这方面贴子了,也不知道发在这里对不对,我在临床经常碰上要用PAIN SACLE
,觉得好STUPID,我发现一是每个人疼痛标准不一样,另一个就是个人喜好不同,同一个病
人总是愿意用同一个数来表达自己疼痛指数,比如我经常会遇见病人会说我疼痛指数是"
8",但你就给我一片止痛药就行,这种时候我会提醒他,你上次是"8"的时候,你都吃两片
的,但他还会坚持他的想法,这显然说明"8"不能代表他真的那么疼,而是他喜欢那个数,
或随便说说而已.要是遇上DRUG ABUSER的话,那PAIN SCALE就基本没用,而美国理念是疼
痛是个感觉,必须要相信疼痛,而不能怀疑病人的疼痛,更不能怀疑DRUG ABUSER的疼痛,
即使他们是到点就要磕药的.
J*********8
发帖数: 4876
10
来自主题: Medicalpractice版 - 补牙+ deep scaling 后的疼痛
最近补了两颗牙,一颗比较深一点,然后同时又做了deep scaling,
做完的那天,很疼,吃了止痛药。现在已经1周,好多了,但有时会忽然痛起来,
并不是补牙的地方,而是牙床的位置,好象是神经痛,大约每次痛持续4-5分钟。
这种痛正常吗?会不会好不了了? 很担心。想在这里请教大家,很感谢!
J*********8
发帖数: 4876
11
来自主题: Medicalpractice版 - 补牙+ deep scaling 后的疼痛
你也是牙医?
请教, deep scaling 这种东西到底有没有用?
f********r
发帖数: 3155
12
来自主题: _Auto_Fans版 - Why Tesla won't be able to scale down
一个很有意思的分析,值得等model 3的同学们看看
https://hbr.org/2015/04/why-tesla-wont-be-able-to-scale
f********m
发帖数: 8397
13
来自主题: _Auto_Fans版 - Why Tesla won't be able to scale down
多谢分享。
不过这文章写得,我上学时候写的Paper都比这个要rigious。。。这个文章也就是饭后
聊聊天的水平。亏得我不是hbs出来的,要不丢人就丢大发了。
比如说吧 “The first is the company’s overhead structure.” 为啥没有任何数
据支持? telsa好歹是上市公司,数据都能找到呢。
还有“Consider a Tesla salesperson tasked with selling all three models.
That individual is incented to sell as many of the most expensive model (the
Model S) as possible. Regardless of commission structures, the nature of
the sales process ensures this.” 这个就是胡说八道了,真给hbs丢人。marketing
的作用就是target market segment.如果真想他所说的,那奔驰还卖什么A,B,C干... 阅读全帖
w*******y
发帖数: 60932
14
ULTRASHIP 55 lb. DIGITAL POSTAL SHIPPING & KITCHEN FOOD SCALE BLACK:
http://www.amazon.com/ULTRASHIP-55-DIGITAL-SHIPPING-KITCHEN/dp/B000FSWB9K/ref=pd_sbs_op_1
* Huge 55 lb / 25 kg capacity
* Tare, Hold, and auto-off feature
* Removable flex face display for weighing oversized boxes
* Letter Tube Holder and Mail/Envelope Holder - Even weigh Kitchen Food
Items!
* Lifetime / 30 year International Warranty
w*******y
发帖数: 60932
15
Weight Guard Luggage Scale [12274-50]:
http://www.everydaysource.com/product/DD/MWGDLUGSCLE1?esaffcojutxt100816=DD CJ mwgdlugscle1 10
Coupon code: S8WGLS
$10.99-$8.5 = $2.49 with free shipping
w*******y
发帖数: 60932
16
Amazon
Ozeri Touch II Professional Digital Kitchen Scale
$25 - $10 code 4APWT433
= $15
free shipping with Prime or with $25 orders
w*******y
发帖数: 60932
w*******y
发帖数: 60932
w*******y
发帖数: 60932
19
just saw this on amazon. discount takes off 12.50 from the $25 price so your
total would be 12.50
Code: BLACKKIT
"The most precise digital scale in its class, with a capacity range from 0.
05 oz to 11 lbs (1 gram to 5 kg).
Oversized buttons for easy operation, and a large LCD screen that displays
weights in pounds (lbs), kilograms, grams, and ounces.
3 Minute Automatic shut-off feature maximizes battery life while giving you
time to multitask in the kitchen (batteries included).
Precision Tare f... 阅读全帖
w*******y
发帖数: 60932
20
Walmart
Taylor 7519 Ultra Thick Glass Digital Scale:
http://www.walmart.com/ip/Taylor-ULTRA-Thick-Glass-Electronic-D
$20
Free Shipping to home
Alternatively, Amazon:
http://www.amazon.com/Taylor-Ultra-Thick-Backlit-Readout/dp/B00
has it for $21.56
High capacity is accurate to 440 lbs in 0.2 lb increments.
Extra sturdy 10mm thick safety glass.
1.4" blue backlit LCD display has 1.2" digits.
Uses 4 AAA batteries which are included.
5 year warranty
w*******y
发帖数: 60932
21
I have been looking around for a decent scale at a good price and found this
one:
http://www.amazon.com/Weighmax-2822-75LB-shipping-Battery-Inclu
on sale for $23. It has some great reviews. Figured since my ebay sales
are increasing, it will probably pay for itself in no time. Tracking alone
saves me over $0.50 each transaction. Hope this helps some of you.
g******y
发帖数: 2517
22
Life Like Railroad Empire HO Scale Train Set,60%折扣
http://amzn.to/rP19jd
w*******y
发帖数: 60932
23
Amazon has the Ozeri Precision Digital Bath Scale (400 lb Edition) with
Widescreen LCD and Step-on Activation on sale for $12.95 right now! Free
Shipping with Prime!
Enjoy!
Link:
http://www.amazon.com/gp/product/B006FKYKSW/ref=ox_sc_act_title
w*******y
发帖数: 60932
24
I was looking for a food scale:
http://www.amazon.com/GSI-Electronic-Portable-Touchscreen-Tempe
and this one came up.
It is a glass touchscreen but only comes in a blue with a cabbage pattern on
it. It is kind of cute.
w*******y
发帖数: 60932
25
Ozeri digital kitchen scale:
http://www.amazon.com/Ozeri-Digital-Multifunction-Kitchen-Elega
on sale at amazon. Add item to cart and use promo code IAMFIT12 at
checkout for 40% off
w*******y
发帖数: 60932
26
Sold by by Plated Stuff and fulfilled by Amazon. Just placed an order with
free prime shipping. Checked 3 C's and this is the lowest price ever for
Amazon or third party
linky:
http://www.amazon.com/Kitrics-133-Glass-Top-Scale/dp/B001DJ1NOY
Large, easy to read digital display
Maximum weight 11 lb/5kg
Minimum weight 1/4-ounce/2 gram
Removable silicon platform is dishwasher safe
Battery included
g******y
发帖数: 2517
27
来自主题: _DealGroup版 - Royal DS3 Postal Rate Scale
Royal DS3 Postal Rate Scale
http://amzn.to/MGDozr
b***y
发帖数: 14281
28
来自主题: Military版 - 方励之的学术成就全记录
既然有人争论方的学术水平,就上网搜了一下。应该说这个水平对于一个junior
faculty来说可以算是很牛B了,但是对于老方这种senior的已经搞了一辈子的人来说,
就只能算so so。不要说是院士,离aps fellow的级别也还差了不少。引用率最高的一
篇文章还是95年到了arizona之后跟老外合作的,被引118次,这也是方唯一一篇被引用
上百次的文章。可见方励之89之前确实没有做出过什么重要的工作,他的名声和地位绝
对是靠政治得来的,当然其中部分的也是80年在中国搞科普所得,必须承认科普工作也是
有重要的社会意义的。
(BTW,有人说你这个搜索未必完整。不错,确实不能保证100%毫无遗漏。但是我
用的search engine is THE search engine everybody in this community uses today.
So, if any article is not found by this search engine, sadly, it simply doesn't matter,
because no one would ever n... 阅读全帖
m****i
发帖数: 1076
29
来自主题: MusicPlayer版 - Blues Lesson (8)
Lesson: 8
Title: Development of Chords from Scale Tones in Thirds
Level: Beginner
Style: Chord theory
Instructor: Dennis O'Neill
10 February 1993
Introduction.
Many chords can be developed by extracting alternate scale tones,
i.e., using tones that are major thirds or minor thirds apart within a
scale. In this series of exercises, you will begin by building
three-note chords from the major and three minor scales relative to C
major and progress to building seven-note (thirteenth) chords. You
wil... 阅读全帖
h******i
发帖数: 661
30
你们学校ap能发这么多paper?
1989
Cosmological implications of quasar-galaxy associations, L.Z.Fang, Y.Q.Chu
and X.F. Zhu, Mod. Phys. Lett., 4, 887.
Geometrical optics in an inhomogeneous universe, L.Z.Fang and X.P.Wu,
Chinese Phys. Lett., 6, 233.
Quasar clustering and its cosmological implication, L.Z.Fang, Inter. J. Mod.
Phys. A4, 3477.
L'Osservatorio astronomico di Pechino: la sua storia, il presente, L.Z.Fang,
Scienza e Tecnica, Annuario della EST 88/89 404.
Overview on the frontier of high energy astr... 阅读全帖
S******8
发帖数: 24594
31
老方到美国后发的文章列表,你自己看吧:
1990
174. Biased clustering in a universe with hot dark matter and a cosmic
string, L.Z.Fang, S.P.Xiang and L.Yan, Astr. & Astrophys. 233, 1.
175. Periodicity of redshift distribution in a T-3 universe, L.Z.Fang, Astr.
& Astrophys. 239, 24.
176. An upper limit to quasar's peculiar velocity, L.Z.Fang, Y.Q.Chu, X.F.
Zhu and L.F. Wang, Inter. J. Mod. Phys., 5, 2993.
177. Quasar pair and quasar's peculiar velocity, L.Z.Fang, Developments in
general relativity, astrophysics and qu... 阅读全帖
f**d
发帖数: 768
32
来自主题: Neuroscience版 - eBook: From computer to brain
这是一本计算神经科学的优秀著作,全文拷贝这里(图和公式缺),有兴趣的同学可以
阅读
如需要,我可以分享PDF文件(--仅供个人学习,无商业用途)
From Computer to Brain
William W. Lytton
From Computer to Brain
Foundations of Computational Neuroscience
Springer
William W. Lytton, M.D.
Associate Professor, State University of New York, Downstato, Brooklyn, NY
Visiting Associate Professor, University of Wisconsin, Madison
Visiting Associate Professor, Polytechnic University, Brooklyn, NY
Staff Neurologist., Kings County Hospital, Brooklyn, NY
In From Computer to Brain: ... 阅读全帖
b***y
发帖数: 14281
33
来自主题: Military版 - 方励之的学术成就全记录
No. The search include his early works up to 1978. Here is the same list
sorted by year.
1) The Influence of Gravitation on the Vacuum State.
By Li-Zhi Fang.
Acta Phys. Sinica 27 ( 1978) 181-18.
2) THE STRUCTURE AND STABILITY OF THE ABNORMAL NEUTRON STAR.
By Li-Zhi Fang, Qin-Yue Qu, Zhen-Ru Wang, Tan Lu, Liao-Fu Luo.
Sci.Sin.22:187-198,1979.
3) Some Recent Developments in Astrophysics. (Talk).
By Li-Zhi Fang, A. Qadir, R. Ruffini.
In *Nathiagali 1980, Proceedings, Physics and Contemporary Needs... 阅读全帖
a*****1
发帖数: 3817
34
来自主题: USANews版 - 说说朋友圈中的川粉 (转载)
THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién andas... 阅读全帖
a********9
发帖数: 3813
35
THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién andas... 阅读全帖
a********9
发帖数: 3813
36
THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién andas... 阅读全帖
a********9
发帖数: 3813
37
THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién andas... 阅读全帖
a********9
发帖数: 3813
38
THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién andas... 阅读全帖
a********9
发帖数: 3813
39
THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién andas... 阅读全帖
a********9
发帖数: 3813
40
来自主题: USANews版 - 美新版最恶心之人 . jerrycasper
瞎说
THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién an... 阅读全帖
a********9
发帖数: 3813
41
THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién andas... 阅读全帖
T**********y
发帖数: 157
42
来自主题: Faculty版 - 快来看牛逼的27岁教授
http://www.ccse.uestc.edu.cn/teacher/teacher.aspx?id=414
所有已经发表论文清单
(发表时间序)

【1】 周涛,傅忠谦,周佩玲,张建荣,张德学,”基于遗传算法的大规模流量
工程问题求解”,计算机应用,2003年第6期,43-45
【2】 杨春霞,周涛,周佩玲,刘隽,基于Multi_Agent的股市经济系统建模与
分析,自动化理论、技术与应用卷十,中国科学技术大学出版社,2003年,596-601(
中国自动化学会第18届青年学术年会会议论文集)
【3】 周佩玲,许民,赵亮,周涛,”混沌信号奇异性检测与外界冲击度量”,
数据采集与处理,Vol.19,195-198,2004
【4】 周涛,徐俊明,刘隽,”图直径和平均距离极值问题研究”,中国科学技
术大学学报,Vol.34,410-413,2004
【5】 周佩玲,杨春霞,周涛,李立文,”虚拟股市建模与混沌分析”,中国科
学技术大学学报,Vol.34,442-448,2004
【6】 T. Zhou, P. ... 阅读全帖
T**********y
发帖数: 157
43
来自主题: Returnee版 - 快来看牛逼的27岁教授
【 以下文字转载自 Faculty 讨论区 】
发信人: TenMilesADay (郭十迈), 信区: Faculty
标 题: 快来看牛逼的27岁教授
发信站: BBS 未名空间站 (Sun Mar 11 13:14:59 2012, 美东)
http://www.ccse.uestc.edu.cn/teacher/teacher.aspx?id=414
所有已经发表论文清单
(发表时间序)

【1】 周涛,傅忠谦,周佩玲,张建荣,张德学,”基于遗传算法的大规模流量
工程问题求解”,计算机应用,2003年第6期,43-45
【2】 杨春霞,周涛,周佩玲,刘隽,基于Multi_Agent的股市经济系统建模与
分析,自动化理论、技术与应用卷十,中国科学技术大学出版社,2003年,596-601(
中国自动化学会第18届青年学术年会会议论文集)
【3】 周佩玲,许民,赵亮,周涛,”混沌信号奇异性检测与外界冲击度量”,
数据采集与处理,Vol.19,195-198,2004
【4】 周涛,徐俊明,刘隽,”图直径和平均距离极值问题研究”,... 阅读全帖
a*****1
发帖数: 3817
44
THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them. Perhaps the saying is
true: dime con quién andas... 阅读全帖
J*****w
发帖数: 180
45
我朋友正在帮国内厂家物色有领导能力的,有创业精神的专家,在国内药厂组建蛋白质
药物开发部。
A leading China Pharma Company has immediate openings for the following four
leadership positions in its Yantai, China and Singapore sites. Please send
your resume to [email protected] if interested.
Title: Head, Upstream Process Development
Functional Description:
Lead, build and develop a high performance Upstream Process Development
group engaged in mammalian cell culture development for commercial
therapeutic proteins, including subclone/clone sel... 阅读全帖
m****i
发帖数: 1076
46
来自主题: MusicPlayer版 - Blues Lesson (2)
Lesson: 2
Title: THE BLUES MELODY AND BLUES SCALE.
Style: Blues, theory
Level: Intermediate
Instructor: Olav Torvund
Those who want to play blues, should know the blues scale. Guitar
players should know how to finger blues scales all the way up the neck in the
so called "box position". But let us start with some peculiarities of
blues tonality.
If you start from the root note and play a scale, a major scale is
like this: (A major scale is often called a diatonic scale.)
I + II + III - IV + V + V... 阅读全帖
m****i
发帖数: 1076
47
来自主题: MusicPlayer版 - Blues Lesson (6)
Lesson: 6
Title: More Chord Construction Using the Major Scale
Level: Intermediate
Style: Music Theory Application
Instructor: Dave Good
In my last lesson, we looked at harmonizing the major scale and the
chords that occur. This time, I want to talk about other types of
chords that are found in the major scale and give chord spellings for
some of the more unusual chords that are not found in everyday rock.
Let's work with the key of C Major again, for simplicity. Remember the
naturally occurring... 阅读全帖
R******o
发帖数: 1572
48
http://www.betanews.com.cn/iphone/2013-09-05/4971.shtml
前言
2012年,苹果将旗下的 MacBook Pro 15 系列升级到 Retina 显示屏幕。众所周知,
Retina 显示比以往的屏幕显示更清晰,锐利,但是很少有人知道这种技术背后的原理
,这里简单,抽象地解释一下。 一直以来我们都有一个认识,位图不是点对点输出的
话是会变模糊的。那么究竟是那个点对那个点呢?一般我们将第一个点叫做用户界面,
第二个点叫做输出界面。长久以来我们有一个误会,用户界面和输出界面都是用像素来
表示的。诚然,在 Retina 发布以前,这种概念错误也是无伤大雅的。但当 Retina 发
布后,这种概念需要纠正了。
点不等于像素
图像从计算机输出经过一套渲染过程,概括来说分成三步:用户界面布置,图层送入渲
染器,输出。Windows 的使用经验获知,设定桌面分辨率就是设定输出的分辨率。一般
来说,这样的概念没有错。如果将 Windows 的渲染分成三步,每次改变一个用户界面
元素都是对用户界面进行一次布置;改变后的图层送入渲染器进行渲染和合并图层;... 阅读全帖
k**********4
发帖数: 16092
49
最重要的是摄氏温标是基于绝对零度 ,是intervel data 华氏温标是相对数字,从科
学角度来说,还是摄氏温标更精确
See below:
Fahrenheit is a temperature scale named after the German-Dutch physicist
Daniel Gabriel Fahrenheit (1686–1736), who proposed it in 1724. In this
scale, the freezing point of water is 32 degrees Fahrenheit (written “32 °
F”), and the boiling point is 212 degrees, placing the boiling and freezing
points of water exactly 180 degrees apart.
Celsius is, or relates to, the Celsius temperature scale (previously known
as the centig... 阅读全帖
w**z
发帖数: 8232
50
https://aws.amazon.com/message/5467D2/?utm_content=buffere5a1e&utm_medium=
social&utm_source=linkedin.com&utm_campaign=bufferSummary of the Amazon
DynamoDB Service Disruption and Related Impacts in the US-East Region
Early Sunday morning, September 20, we had a DynamoDB service event in the
US-East Region that impacted DynamoDB customers in US-East, as well as some
other services in the region. The following are some additional details on
the root cause, subsequent impact to other AWS services t... 阅读全帖
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