j***a
发帖数: 10844 | 1 Approx. 240 Intersections w/o Traffic Lights; Obey 4-Way Stop Rules and
Drive with Caution.
As of 5:30AM, there are approximately 240 intersections without working
stoplights in Montgomery County. As a reminder, treat ALL intersections
without a working stoplight as a four-way stop.
-Allow extra time for your commute and plan on delays.
-Proceed with caution ONLY when traffic permits.
-Enter intersections only when it is safe to do so, using turn signals to
let other motorists know your inten... 阅读全帖 |
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l*********6
发帖数: 245 | 2 刚刚回到寝室。
今天跟一个师兄一起出门吃饭。
我们走在路上，我在路边看到一个标有photo enforced的牌子，上面还有一个红绿灯标
志，我就提醒他这个intersection可能会有拍照。他也很注意了。
可是我们走到那个intersection的时候，根本没看到任何photo equipment！
于是我还在跟他开玩笑 说是不是这个牌子也该拆了。都没有photo纯属吓唬人。
结果我们走到下一个intersection的时候，我突然发现路边出现了跟国内摄像头那样的
一组摄像头！
这不科学啊~明明是下一个intersection才要出现的标志~为什么在上一个intersection
出现标语牌了~ |
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z***c
发帖数: 102 | 3 OK I was not being precise. But I think the OP was asking about the same
fixed point.
The concept of transversality in differential topology is the following: Two
submanifolds M, N of the manifold W are transversal at x if
TxM + TxN = TxW
the sum is in the sense of vector subspace. This is somewhat different from
the naive sense of transversality. If two submanifolds intersects at at a
point, then the transversality condition is the same as having "nonzero
angle".
As I explained, the intersec... 阅读全帖 |
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h****2
发帖数: 9 | 4 for what vector spaces does the distributive law of subspaces
S intersect ( T+U) = (S intersect T ) + (S intersect U ) hold,
+ here is just ordinary operation, not union or direct sum |
|
c**********w
发帖数: 1746 | 5 请原谅简单问题，我刚开始看dynamic systems，正在看saddle fixed point。这个地
方讲到，discrete-time system的unstable invariant manifolds和stable invariant
manifolds可以intersect at nonzero angle，但是continuous-time就不行。我完全
没搞懂，这个intersect是指相互无限接近类似limit point，还是指有非空交集? 为什
么discrete-time可以有transversal intersection, 而连续系统不行？区别在哪里？
刚刚学，问题很弱，谢谢指教！ |
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s*****e
发帖数: 115 | 6
This is not true in general!
None of you guys get it straight. The correct statement is that
Given a continuous-time dynamical system, the stable and unstable manifolds
of the SAME fixed point can never intersect transversally at any location
other than the fixed point itself. The meaning of "transversal intersection"
is exactly the same as its usual meaning in differential geometry.
For a continuous-time dynamical system (dimension 3 or higher), there can be
transversal intersections, for exam... 阅读全帖 |
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d*******e
发帖数: 170 | 7 比如我老老实实限速开，然后在另外一条路上有人飚车，在intersection相撞。在这种
路上是不是只能靠近intersection的时候减速多观察然后过去？ |
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s*****m
发帖数: 18 | 8 在一个plaza内的一个intersection 跟另一车撞到，警察给了报告，双方都 failed to
yield right of way -open intersection，认为双方责任各一半。但Geico现在说因
为对方在main aisle,而我是从parking place开出来的，要我全责，这个该怎么办？双
方保险公司都是Geico. |
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y***e
发帖数: 6082 | 9 【 以下文字转载自 Automobile 讨论区 】
发信人: yueke (小鱼儿~2008BB竞猜王), 信区: Automobile
标 题: 在纽约吃的blocking intersection ticket有必要argue么
发信站: BBS 未名空间站 (Mon Jun 14 19:52:19 2010, 美东)
十天前第二次开车去纽约，在NYC进NJ纽瓦克机场的隧道前的intersection of w
broadway and broome st莫名其妙的吃了张115刀的ticket，算obstructing traffic，
有必要去argue么？不住在NYC，谢谢 |
|
O******e
发帖数: 734 | 10 It might depend on the subject of your paper.
Generally speaking, "intersect(ion)" focuses on
the actual point, "cross(ing)" refers more to
the fact that the two lines or curves are not
parallel.
If you are talking about two planes or surfaces
in geometry, they "intersect", not "cross". |
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z**********8
发帖数: 2049 | 11 两个TABLES, 一个是REGISTERS, 一个是STUDIOS, 想把拥有STUDIOS的REGISTERS抓出来
.很简单,只要用INTERSECT就可以了.
但是问题是, 有些STUDIOS不提供OWNER NAMES,而只有ADDRESS INFORMATION.这样一来,
ADDRESS 万一写错一点点,就不能用INTERSECT了
有没有类似 LIKE的东东,再让我抓多点人出来呢?谢谢 |
|
发帖数: 1 | 12 比较正式的是intersection，crossroads等，口语里是怎么说的，经常有人问路需要用
到这个词 |
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y***e
发帖数: 6082 | 13 十天前第二次开车去纽约，在NYC进NJ纽瓦克机场的隧道前的intersection of w
broadway and broome st莫名其妙的吃了张115刀的ticket，算obstructing traffic，
有必要去argue么？不住在NYC，谢谢 |
|
k****i
发帖数: 552 | 14 说了半天
你到底有没有block intersection啊 |
|
b*******y
发帖数: 239 | 15 intersection block没扣你分已经很好了, 很多地方有cross line的, 都要扣2分的.
那个隧道前因为车流量太大, 很多时候警察没有办法一个一个去开moving ticket或者
扣分, 因为blocking的人太多, 有时候一下子就3,4辆一起处罚, 为了快点开罚单, 他
们一般就用parking ticket, 因为不需要查你的具体信息, 只要看车的信息就行.
一般都是115刀, 去nyc.gov/finance可以dispute, 也可以减免一部分, 然后付款. |
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b******e
发帖数: 146 | 16 第一次去纽约，在回来的路上路过Soho 区时，交通非常的拥堵，在过一个红绿等时，
在红灯等绿灯时，我前面只有一辆车，变绿后前面的车冲出去了，我也下意识的跟着出
去了，结果前面的车停下来后，我的车没能穿过马路，停在了交叉那条路的前面1/3,进
退都不行，直到绿灯变成红灯也不能动弹。恰好那是那条路上站着3个罚paking ticket
的警察，马上上来给我吃了一张block intersection ticket。不罚分115刀。穷学生来
说一笔不小的开支，请问各位有没有类似经历的给点建议，怎么样说能够减或免。谢谢
了。
PS：我直行那道和交叉的道都是单行线。 |
|
a*******5
发帖数: 152 | 17 想问一下，在intersection ,我对面的方向叫opposite direction, 对吗？
那和我成十字的方向英语怎么说啊 。谢谢。 |
|
a*******5
发帖数: 152 | 18 我在路口左转，有左转灯，我在中间左转灯变黄，变红，（黄到红很快）然后被对面的
直行的车给t-tone了， passenger side, 我看到的对面直行的开始是红灯， 他是full
stopped, 但是灯边绿了以后，他没看到我intersection ,就开出来了。 这个责任是
谁的。 警察没有给开罚单。 |
|
s******a
发帖数: 184 | 19 解决set 的 intersection 和 union 最有效的方法是什么？ |
|
w****o
发帖数: 2260 | 20 array里的元素是可以重复的对吧？
set里的元素是不能重复的对吧？
求intersection, union应该分别用什么数据结构和算法？
谢谢！ |
|
y*****n
发帖数: 243 | 21 put all elements of one array into an hashtable, then scan another array to
check if current element is in hashtable, if yes then current element is
belong to intersection.
for union, just use hashset, put all elements in two arrays in hashset, then
the elements in hashset is what you want.
hashset will not permit repeated elements(at least in java= =) |
|
w****o
发帖数: 2260 | 22 yezhuen,
谢谢你的回答，
你这里做intersection的时候用到的hashtable里到底存的是什么？是数组里的数吗？
还只是存和相应数对应后(经过了hash fuction)的一个flag?
你做union的时候，用到的hashset里面存的是数组里的数，对吧？
谢谢！
to
then |
|
l**********r
发帖数: 7 | 23 一道很简单的面试题：
给一个数组arr[]，数组第i个元素表示圆心坐标为(0,i)，半径为arr[i]的圆。求出该
数组里有多少个圆心不同但intersect的圆？
题目很简单，但是小弟只能答出简单的解法，用两个循环一个个找，想不出time
complexity是O(nlogn)的解法。
求各位高手给个思路。 |
|
d**e
发帖数: 6098 | 24 如果这个是老中,大家觉得应该给他进一下轮吗?
我们组不怎么招人,主要是大家都很喜欢得过而过,没人离开,也因此也很少面试.我最喜
欢面这个intersection的题,如果连这个题也做不出来,下面就随便应付一下,如果做出
来就改改条件再做一次.我已经想不出有比它更简单的题的.
目前来说,面过的还没有一个人做出来.也还好,没遇到一个同胞,令我不需要负上"自己
人也不帮"的负担...
但如果下一次遇上同胞,万一他/她做不出来,我没给他/她进一轮,我会得到大家谴责吗? |
|
c*******7
发帖数: 438 | 25 什么叫两个array的intersection啊？能不能解释一下题目。。。 |
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y***e
发帖数: 6082 | 26 【 以下文字转载自 Automobile 讨论区 】
发信人: yueke (小鱼儿~2008BB竞猜王), 信区: Automobile
标 题: 申诉被驳回 Re: 在纽约吃的blocking intersection ticket有必要argue么
发信站: BBS 未名空间站 (Sat Jul 3 20:24:19 2010, 美东)
去申诉了，郁闷，条条理由都被驳回，连一刀都没有减少，还能继续appeal么，还是老
老实实交了罚款算了 |
|
a***i
发帖数: 56 | 27 才399太便宜了.
My colleague did not fully stop for RIGHT turn at one intersection with
camera installed. She got a ticket for $500+. |
|
c****g
发帖数: 7 | 28 Thanks a lot!
The SQL statement
selct ..
from
where
INTERSECT
select ..
from
where |
|
l******n
发帖数: 9344 | 29 Two tables A and B. A has Date and State. B also has Date and State.
A has 20 records and B has 50.
For all records, how can we find out the number of records in A that has
Date and State intersection with B.
for example, if A has
2/1/2008-3/1/2008, CA
B has
2/12-2/14/2008, TX,CA, OR
Then this record is what we want. I want to count these records.
Any way?
thanks in advance |
|
|
l*******m
发帖数: 1096 | 31 跑完了，80M intersects 120M 花了100分钟，慢不慢？开了25 parallel |
|
B*A
发帖数: 83 | 32 刚才用一个730 MILLION record 的 TABLE (60GB) intersect itself on my Oracle
database
It took 54 seconds.
In most time Big Data does not mean solution for better performance, it
means solution for less expensive software investments. |
|
y*******7
发帖数: 579 | 33 网络上看了很多关于这个网站的推介，http://www.gototrafficschool.com/
就注册去上课了，发现价格已经改了，是$19，
不过用promotion code (X2B-C8B-A94) 依然可以减少$2。
现在已经不能只是开着电脑耗时间了，我试着开机，但出去了3-4个小时，回来就要求
重新log in了。而且也不能直接参加final exam，必须答对各章的所有试题才能到达
final exam，而且各章的题目之后还有一题“security question”，就是问关于前面
学习材料中的图片、录像中的内容，所以还不得不点击看看，总共也需要不少时间。不
过有个节约时间的方法，就是先到问题的一页，看完问题再点击“previous”回到前一
页寻找答案，利用IE的“编辑”菜单下“查找（在当前页）”的功能可以快速定位。如
果中途log off再回来log in，得一页页翻过之前做过的章节，不过不需要重新做题就
是。到达上次退出地方，就自动加载之前这一章的内容。
欢迎大家使用promotion code：X2B-C8B-A94
http://www.gototraff... 阅读全帖 |
|
c******i
发帖数: 94 | 34 老新闻了，提个醒。
http://www.wtsp.com/news/topstories/article/316418/250/10-News-
TAMPA BAY, Fla. -- A subtle, but significant tweak to Florida's rules
regarding traffic signals has allowed local cities and counties to shorten
yellow light intervals, resulting in millions of dollars in additional red
light camera fines.
The 10 News Investigators discovered the Florida Department of
Transportation (FDOT) quietly changed the state's policy on yellow intervals
in 2011, reducing the minimum below federal re... 阅读全帖 |
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f*l
发帖数: 22 | 35 http://dmv.ny.gov/about-dmv/chapter-5-intersections-and-turns
Right-of-Way
Traffic signs, signals and pavement markings do not always resolve traffic
conflicts. A green light, for example, does not resolve the conflict of when
a car turns left at an intersection while an approaching car is going
straight through the intersection. The right-of-way rules help resolve these
conflicts. They tell you who goes first and who must wait in different
conditions.
Here are examples of right-of-way rules:
A ... 阅读全帖 |
|
y*******7
发帖数: 579 | 36 网络上看了很多关于这个网站的推介，http://www.gototrafficschool.com/
就注册去上课了，发现价格已经改了，是$19，
不过用promotion code (X2B-C8B-A94) 依然可以减少$2。
现在已经不能只是开着电脑耗时间了，我试着开机，但出去了3-4个小时，回来就要求
重新log in了。而且也不能直接参加final exam，必须答对各章的所有试题才能到达
final exam，而且各章的题目之后还有一题“security question”，就是问关于前面
学习材料中的图片、录像中的内容，所以还不得不点击看看，总共也需要不少时间。不
过有个节约时间的方法，就是先到问题的一页，看完问题再点击“previous”回到前一
页寻找答案，利用IE的“编辑”菜单下“查找（在当前页）”的功能可以快速定位。如
果中途log off再回来log in，得一页页翻过之前做过的章节，不过不需要重新做题就
是。到达上次退出地方，就自动加载之前这一章的内容。
欢迎大家使用promotion code：X2B-C8B-A94
http://www.gototraff... 阅读全帖 |
|
f******8
发帖数: 93 | 37 工作中用的py程序，完全看不懂啊！！！真的给跪了！！！哪个牛人能给注释下，不用
详细大体说下这程序咋运行得就行。。。。。
"""
Compute the intersection of two sets of genomic intervals, either base-by-
base
or at the interval level. The returned GenomicIntervalReader will be in
the order of the first set of intervals passed in, with the corresponding
additional fields.
"""
import traceback
import fileinput
from warnings import warn
from bx.intervals.io import *
from bx.intervals.operations import *
def intersect(readers, mincols=1, upstream_pad=0, downstre... 阅读全帖 |
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g*********1
发帖数: 725 | 38 再次感谢茶馆各位，今天跟对方保险公司交涉，他们下午回复说同意责任全部在他们那一方。能这么快有一个满意的结果有点出乎我们意料，能这么快有一个满意的结果有点出乎我们意料，因为出事的当天下午，对方保险公司给我们打电话问询了一下情况以后还声称可能不会赔偿。我认为很大程度上得力于我们准备的一份statement。我想贴在这儿，以后如果碰到类似的事情也许对大家有启发。
statement:
First, let me tell you some background:
1. The car accident happened at approximately 8:18 AM just in front of the community (****) where I have lived for more than 5 years. Almost every morning, I pass that intersection to go to work or drop my kids to the daycare. I have never tried to make a left turn wit... 阅读全帖 |
|
g*********1
发帖数: 725 | 39 再次感谢茶馆各位，今天跟对方保险公司交涉，他们下午回复说同意责任全部在他们那一方。能这么快有一个满意的结果有点出乎我们意料，能这么快有一个满意的结果有点出乎我们意料，因为出事的当天下午，对方保险公司给我们打电话问询了一下情况以后还声称可能不会赔偿。我认为很大程度上得力于我们准备的一份statement。我想贴在这儿，以后如果碰到类似的事情也许对大家有启发。
statement:
First, let me tell you some background:
1. The car accident happened at approximately 8:18 AM just in front of the community (****) where I have lived for more than 5 years. Almost every morning, I pass that intersection to go to work or drop my kids to the daycare. I have never tried to make a left turn wit... 阅读全帖 |
|
g*********1
发帖数: 725 | 40 再次感谢各位，今天跟对方保险公司交涉，他们下午回复说同意责任全部在他们那一方
。能这么快有一个满意的结果有点出乎我们意料，因为出事的当天下午，对方保险公司
给我们打电话问询了一下情况以后还声称可能不会赔偿，我认为很大程度上得力于我们
准备的一份statement。我想贴在这儿，以后如果碰到类似的事情也许对大家有启发。
statement:
First, let me tell you some background:
1. The car accident happened at approximately 8:18 AM just in front of the
community (****) where I have lived for more than 5 years. Almost every
morning, I pass that intersection to go to work or drop my kids to the
daycare. I have never tried to make a left turn without green left arro... 阅读全帖 |
|
w***t
发帖数: 8175 | 41 刚复习了一下交规，好像你是对的。。
Intersections
An intersection is any place where one line of roadway meets another roadway
. Intersections include cross streets, side streets, alleys, freeway
entrances, and any other location where vehicles traveling on different
highways or roads join each other.
Driving through an intersection is one of the most complex traffic
situations motorists encounter. Intersection collisions account for more
than 45 percent of all reported crashes and 21 percent of fatalities
accord... 阅读全帖 |
|
D***n
发帖数: 6804 | 42 法律根本不是你这样说的，你的理解根本是错的，很多州关于yield的法律原文很简单
，直接翻译就好了：
Failure to yield at intersection, Right of way at intersections The driver
of a vehicle approaching an intersection shall yield the right of way to a
vehicle which has entered the intersection. When 2 vehicles enter an
intersection at the same time the driver of the vehicle on the left shall
yield the right of way to the driver of the vehicle on the right.
在路口以外的司机必须yield 路口以内的司机，无论左拐还是直行，两个同时到达
intersection的，左边的司机yield.
The driver of a vehicle... 阅读全帖 |
|
y****i
发帖数: 2108 | 43 a. The driver of a vehicle which is stopped at a clearly marked stop line,
but if none, before entering the crosswalk on the near side of the
intersection, or, if none then at the point nearest the intersecting roadway
where the driver has a view of approaching traffic on the intersecting
roadway before entering the intersection in obedience to a steady red signal
may make a right turn, but shall yield the right-of-way to pedestrians and
other traffic proceeding as directed by the signal at the... 阅读全帖 |
|
j***a
发帖数: 10844 | 44 9200 Old Dominion Drive McLean, VA 22102-1019
(703) 285-2965
Directions
Mailing Address
9200 Old Dominion Dr.
McLean, VA 22102
From the Beltway (I-495):
Take exit 44 for Route 193, Georgetown Pike.
At the top of the exit ramp, there is a traffic light. If you are exiting
from I-495 South, coming from Maryland and the George Washington Memorial
Parkway, take a right at the light onto Route 193 West. If you are coming
from I-495 North (the Inner Loop) from points south or I-66, you will take a
le... 阅读全帖 |
|
s******n
发帖数: 3946 | 45 看看这样行么，O(kn)，k是平均相交的数量：
Interval[] S;
if (S.length<=1) return;
sort(S); // sort by start time of every interval
class IntervalResult {
int index;
int[] intersected;
}
IntervalResult[] result;
result[0]<-{0,{elements intersect with S[0]}}
for (int i=1; i
int j=result.length-1;
for (; j>=0; j--) {
// 假设result[j]的intersected存在元素不能overlap S[i]就停止loop
if (!(S[i] intersects with all result[j].intersected)) break;
}
bool found=false;
for (int k=j+1; k阅读全帖 |
|
m***z
发帖数: 311 | 46 2409.6 “NO STANDING” areas for zones and stands for public transit buses
shall be of the following sizes:
(a) Those located adjacent to the corner approached by a bus before entering
an intersection (nearside): the area within one hundred thirty feet (130 ft
.) of the intersecting curb lines;
(b) Those located adjacent to the corner first reached after crossing an
intersection without a turn (far side): the area within eighty-five feet (85
ft.) of the intersecting curb lines;
(c) Those located a... 阅读全帖 |
|
c****i
发帖数: 150 | 47 以下是警察DISCLOSURE
"I had came to a stop as the e/w lights tured from amber to red. I was in
the inside lane. I was the first vehicle on the line. Vehicle directly
beside me was already stopped and was waiting to turn left behind two other
vehicles. this vehicle is a blue xxx and was positioned about 3 metres
behind the white line. As the light turned amber the first two vehicles i
the intersection proceeded to turn left. the turning vehicles proceeded
slowly as the traffic was heavy ad the interse... 阅读全帖 |
|
F****n
发帖数: 3271 | 48 不用 line sweep 的简单解法：
import java.awt.geom.Rectangle2D;
import java.util.ArrayList;
import java.util.List;
public class Aggregation
{
protected List rects;
protected Aggregation overlap;
public Aggregation()
{
this.rects = new ArrayList<>();
this.overlap = new Aggregation();
}
public void add(Rectangle2D r)
{
List intersects = new ArrayList<>(this.rects.size());
for (Rectangle2D rect : this.rects)
{
... 阅读全帖 |
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y*k
发帖数: 80 | 49 骑车上班断断续续也有些年头了，前一阵公司请人讲两小时的骑车安全课，才发现以前
的一些习惯并不安全，所以结合自己的经验总结一下。
版上常有人想骑车但是担心安全问题。其实懂的安全技术越多，骑着也越有信心，所以
这篇文章讨论的是更安全更自信的在马路上骑车。
一. 事故统计
自行车crash的统计结果，50%左右是“自摔型”。这个原因就多了，刹车不灵，操作失
误，碰到石头或坑等。30%-40%是和别的vehicle碰撞。和车碰撞的事故中，90%发生在
intersection。同学们可能觉得公路上路窄车快很恐怖，但真相是，除了路口外，出事
几率非常小。
二．避免“自摔”
这个不用多说了，出发之前检查“ABC”：Air（胎压），Brake，Chain。前面有石头或
坑的时候别盯着石头或坑看，一般来说你盯着什么就撞什么。盯着你想绕过石头或坑的
旁边路面看。
三．路口intersection
1. 常见的情况之一：直行，遇到后面右转或迎面左转的汽车快要撞上了。最好的方法
是跟着车右转，这比别的方法都有效。即使你骑得很快，自行车急转的速度通常比你想
象的快。我同事正好碰到过这种情况，他马上右转，虽然摔... 阅读全帖 |
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a*****g
发帖数: 19398 | 50 #!/usr/bin/env pike
// legal.pike - Count the number of legal go boards.
// Copyright 2005 by Gunnar Farneb?ck
// [email protected]
/* */
//
// You are free to do whatever you want with this code.
//
//
// This program computes the number of legal go board configurations
// for a rectangular board of a given size. It is efficient enough to
// handle boards up to 8x8 within minutes and up to 11x11 in less than
// 24 hours (on a fast computer). For rectangular boa... 阅读全帖 |
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