s**d
发帖数: 787 | 1 Raid You sounds quite different from the other two. Radial and radio have
the same pronunciation, so I would not be able to differentiate them.(The
word radial would not even pop up in my head as one of the options as I don'
t use this word often).
There are people who believe words like "stock" and "stalk" are different,
but there once was an exercise that asked if people were saying pairs of
words differently, and many of my co-workers said they would pronounce them
exactly the same, and stock |
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f********f
发帖数: 290 | 2 【 以下文字转载自 Graphics 讨论区 】
发信人: flyingjeff (1@2), 信区: Graphics
标 题: 哪本书讲topology，特别是radial edge structure之类东西比较好
发信站: BBS 未名空间站 (Thu Aug 31 19:20:43 2006), 转信
关于3d modelling得。
我们学校没有Geometric Modeling for CAD Applications这本书，下个礼拜面试要问
关
于radial edge structure，还有Parametric-Space ( 2D Space ) Vs Model Space (
3D Space )相关的内容，有人知道哪本书好点么？
我现在手头只有两三篇paper提到了这个。太少了，不够系统。
不胜感激。 |
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d*******s
发帖数: 15155 | 3 【 以下文字转载自 Auto_Fans 俱乐部 】
发信人: dearbulls (CiTY HuNTeR), 信区: Auto_Fans
标 题: 350z上了drag radial，怎么burn out?
发信站: BBS 未名空间站 (Sat May 5 01:22:40 2012, 美东)
之前版上有谁说z没有torque，还没什么感觉，四季胎4500 rpm就可以burn out了。因
为抓地原因，我试过最多只能4000起步，这样grip loss最少(再低就更没torque了)。
上了两个gforce的drag光头胎，可现在问题是，即使拉到6k，也只能转一点，烟都不出
，胎热不起来啊，怎么办? 而且z似乎也有什么啥车over ride油门，一般磨胎都是带着
刹车，可z不行。
今天试了3.5k~5.5k区间，500间隔的不同转速，发现5k起步最快，一档滑动也少，不滑
之后转速落到4k，不会损失太多。虽然赢了两个fox body的5.0野马和一个4.6的sn95野
马，可时间并没快多少啊。。。
支支招吧 |
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m*****3
发帖数: 13701 | 4 轮胎这东西，基本上一分钱一分货。Bridgestone 现在有一套，High-Performance 的
，挺好。Goodyear 用过两套，All-season 的，都很烂。GT Radial 没听说过，查了一
下，在23个轮胎品牌的满意度里，这货高居第22位，可想而知。为了安全才买雪胎，你
还是老老实实买冠军最保险 - Michelin。 |
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Y**s
发帖数: 1632 | 5 I don't think I can differentiate between radial and radio without context. |
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a*******e
发帖数: 346 | 6 radial的那个l音如果发的清晰就可以。。 我觉得也很难。。
context. |
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d***s
发帖数: 55 | 7 V(x)=(1/a)V(ax) x \in R_{+}^K a>0
then function V(x) is radially homogenous
Then the result is the Hessian matrix of V(x) goes to zero as x goes to
infinity
请问怎么证明？thx！ |
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d****y
发帖数: 53 | 8 I guess you are talking about radial distribution function in the context
of condensed matter physics.
A very good reference would be Page 234-248 in States of Matter by Prof.
David Goodstein.
And its Fourier transform is basically the structure factor, which is also
discussed nicely in this book. |
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f********f
发帖数: 290 | 9 关于3d modelling得。
我们学校没有Geometric Modeling for CAD Applications这本书，下个礼拜面试要问
关
于radial edge structure，还有Parametric-Space ( 2D Space ) Vs Model Space (
3D Space )相关的内容，有人知道哪本书好点么？
我现在手头只有两三篇paper提到了这个。太少了，不够系统。
不胜感激。 |
|
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s********k
发帖数: 107 | 11 I think the answer should be E.
First, Let's consider the direction of E and H in some point A outside of the
ballon. According to the symmetry, E should be along radial direction. And
since S=E x H, So we know the compaonet of S along the radial direction is 0.
We can even consider something about H to get more insteresting result. As well
according to mirror symmetry and H is a pseudovector, the radial component of
H is 0. But due to sphericaly symmetry, H should be along radial direction, so |
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G*******e
发帖数: 219 | 12 http://news.nurse.com/apps/pbcs.dll/article?AID=2005505010320
Caution: Nerve Injuries During Venipuncture
Sue Masoorli, RN
Sunday May 1, 2005 Print Select Text Size: Comments
Share this Nurse.com Article
Share on facebook Share on twitter Share on email
Permanent damage can result
when a needle point makes
contact with a nerve.
"Nurse, I feel an electric shock going down my arm." Would this patient
complaint mean anything to you when you insert an IV catheter or draw blood?
This feeling of s... 阅读全帖 |
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c********1
发帖数: 60 | 13 刚刚转入data science不到两个月，所知甚少，如果有大牛觉得我的问题太过白痴，请
见谅！
这几天在做一个project，有了两个发现，也算是问题，在此分享，希望版上各位同仁
大牛能够解答。
（1）用Radial SVM做classification,一开始忘了normalization（数据的scale差异极
大，有的在0-1波动，有的超过1000，的确有这个必要），赶紧perform normalization
后发现accuracy,sensitivity, kappa这些metric基本没有significant improvement (
平均就增加了0.05左右)。不知道这是为何？
（2）Andrew Ng在他的cousera lecture vedio里说如果number of training samples
is intermediate compared to the number of features （他说的范围是指前者10-10
,000，后者1-1000），radial SVM要比linear SVM好。我的data set有99个obs, 20个
... 阅读全帖 |
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f******d
发帖数: 6361 | 14 我的车子是toyota camry，我最近发现（以前没有很留意）前胎看上去明显比后胎flat。
厂商recommend的最大胎压是35pound。无论是自己打气还是mechanic给我打气，我都是
要求32-33pound。作天我换engineer oil，还做了tyre rotation，mechanic说给我打
了32pound。我今早发现前胎仍然明显比后胎flat。我google了一下，这好像是正常
的，但还是想请教一下大家。
网上看到的解释：
1.
That's a characteristic of radial tires cars today have radial tuned suspension and there is a curvature in the sidewall that helps the car respond to curvy roads , swerving around an obstacle to avoid crash.etc. and the slight bend in the steel belts give the illusion... 阅读全帖 |
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a****d
发帖数: 1919 | 15 The radial glia cells divide asymmetrically and produce precursor/immature
neurons, which migrate along the radial process up towards the cortical
plate.
Neurons were born first,the glia cells were produced later during cortical
development. Both are originated from the radial glia cells. Recently there
are findings suggesting that glia cells divide locally at the upper cortex
to increase the glia population.
Hopefully this is helpful. |
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w**2
发帖数: 147 | 16 （2）Andrew Ng在他的cousera lecture vedio里说如果number of training samples
is intermediate compared to the number of features （他说的范围是指前者10-10
,000，后者1-1000），radial SVM要比linear SVM好。我的data set有99个obs, 20个
features,应该属于radial SVM表现较优的那个范围。但是，10-fold cross
validation的结果却显示linear SVM的各个accuracy metrics都要优于radial SVM.
Your dataset is actually very small. I wouldn't consider SVM, maybe Naive
Bayes, LASSO and Ridge. Logistic needs at least 50 data points per feature (
not appropriate here).
The reason is your ... 阅读全帖 |
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c**i
发帖数: 6973 | 17 Harpoon is A/R/UGM-84.
AGM stands for air-to-ground missile; RGM Radar Guided Missile; UGM
Underwater Guided Missile.
(1) Harpoon Block II; Backgrounder. Boeing, undated.
http://www.boeing.com/defense-space
/missiles/harpoon/docs/HarpoonBlockIIBackgrounder.pdf
Quote:
"Weight:
1,160 lb. Air configuration
1,459 lb. ASROC configuration
1,520 lb. TARTAR configuration
1,523 lb. Capsule/canister configuration
"Propulsion: Air-breathing turbojet engine (cruise), solid-propellant
booster
Note:
(a) RUR-5... 阅读全帖 |
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w********2
发帖数: 632 | 18 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 |
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f****t
发帖数: 15913 | 19 二战时日本舰载机主要是A6M（即零式），其主要指标如下：
Empty weight: 1,680 kg (3,704 lb)
Loaded weight: 2,410 kg (5,313 lb)
Powerplant: 1 × Nakajima Sakae 12 radial engine, 709 kW (950 hp)
Maximum speed: 533 km/h (287 kn, 331 mph) at 4,550 m (14,930 ft)
Range: 3,105 km (1,675 nmi, 1,929 mi)
Service ceiling: 10,000 m (33,000 ft)
Rate of climb: 15.7 m/s (3,100 ft/min)
与之对应的是美军的F6F“地狱猫”，其指标如下：
Empty weight: 9,238 lb (4,190 kg)
Loaded weight: 12,598 lb (5,714 kg)
Powerplant: 1 × Pratt & Whitney R-2800-10W "Double Wasp" two-r... 阅读全帖 |
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w******t
发帖数: 16937 | 20 分特，想看专业的？
看这个。声明：因为网络安全原因，我删去了一些必须删去的内容。
http://schema.org/WebPage">Google
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