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x*****0
发帖数: 452 | 2 Suppose there is a circle. There are n petrol pumps on that circle. You are
given two sets of data.
1. The amount of petrol that petrol pump will give.
2. Distance from that petrol pump to the next petrol pump.
Calculate the first point from where a truck will be able to complete the
circle (The truck will stop at each petrol pump and it has infinite capacity
). Expected time complexity is O(n). Assume for 1 litre petrol, the truck
can go 1 unit of distance.
For example, let there be 4 petrol pu... 阅读全帖 |
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t**********3
发帖数: 12623 | 6 DONT PUMP FULL TANK OF PETROL
Many of us are not aware that the petrol kiosk pump has a return pipe-line (
in Pink). When the petrol tank (in the car) reaches full level, there is a
mechanism to trigger off the pump latch and at the same time a return-valve
is opened (at the top of the pump station) to allow excess petrol to flow
back into the pump. But the return petrol has already pass through the meter
, meaning you are donating the petrol back to the Oil Dealer.
Also only fill up your car or... 阅读全帖 |
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s***n
发帖数: 10693 | 7 Budget 2011: Drivers say fuel prices went up in advanceBy Simon Gompertz
Personal finance correspondent, BBC News
Petrol retailers say their costs have been rising Continue reading the main
story
Budget 2011Key points at-a-glance
How will the Budget affect you?
Budget calculator
'Jobs to go' due to oil tax hike
George Osborne's instant 1p reduction in fuel duty was a genuine surprise,
but drivers have been contacting the BBC to accuse their local garages of
raising prices in advance.
So instead ... 阅读全帖 |
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M***s
发帖数: 8769 | 8 小车和大车，引擎一般都不一样
S40
Production 2004–present
Assembly Ghent, Belgium
Pretoria, South Africa
Shah Alam, Malaysia
Chongqing, China[5]
Body style 4-door sedan
5-door station wagon (as V50)
Layout Front engine, front-wheel drive / four-wheel drive
Platform Volvo P1 platform
Engine 1.6 L I4
1.6 L turbocharged diesel I4
2.0 L I4
2.0 L E-85/Petrol I4
2.4 L turbocharged diesel I5
2.5 L T5 turbocharged I5
Transmission 5-speed manual
6-speed manual
5-speed Geartronic
6-speed Gear... 阅读全帖 |
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t********e
发帖数: 25 | 9 There are n petrol bunks arranged in circle. Each bunk is separated from
the rest by a certain distance. You choose some mode of travel which needs
1litre of petrol to cover 1km distance. You can't infinitely draw any
amount of petrol from each bunk as each bunk has some limited petrol only.
But you know that the sum of litres of petrol in all the bunks is equal to
the distance to be covered.
ie let P1, P2, ... Pn be n bunks arranged circularly. d1 is distance
between p1 and p2, d2 is distance b |
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l*********y
发帖数: 142 | 10 There are N petrol bunks arranged in circle. Each bunk is separated from the
rest by a certain distance. You choose some mode of travel which needs 1
litre of petrol to cover 1 km distance. You can't infinitely draw any amount
of petrol from each bunk as each bunk has some limited petrol only. But you
know that the sum of liters of petrol in all the bunks is equal to the
distance to be covered.
i.e let P1, P2, ... Pn be n bunks arranged circularly. d1 is distance
between p1 and p2, d2 is distanc |
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e*****e
发帖数: 1275 | 11 There are n petrol bunks arranged in circle. Each bunk is separated from the
rest by a certain distance. You choose some mode of travel which needs
1litre of petrol to cover 1km distance. You can't infinitely draw any amount
of petrol from each bunk as each bunk has some limited petrol only. But you
know that the sum of litres of petrol in all the bunks is equal to the
distance to be covered.
ie let P1, P2, ... Pn be n bunks arranged circularly. d1 is distance between
p1 and p2, d2 is distance b... 阅读全帖 |
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d**0
发帖数: 660 | 12 http://www.autoblog.com/2016/06/16/woman-20-years-export-f-35-f-22-engines-china/#conversation
j2bin
1 Day Ago
Do what China does to spies -- give the culprit the maximum, death or a life
sentence!
7
Report Reply
djk
djk
1 Day Ago
Why 20 years...I say hang her. TRAITOR
7
Reply
kelvin
kelvin
1 Day Ago
@djk
burnn the fker to death
4
Reply
Vi Boss
Vi Boss
1 Day Ago
20 years? Why not execute this chinese rat like we did with the russian
spies?
6
Reply
FOXSUX
FOXSUX
1 Day Ago
If China thinks ... 阅读全帖 |
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P*****t
发帖数: 4978 | 13 看来核事故惹怒了不少人
No home. No help. No hope: Now Japan's despair turns to anger
As it struggles to gain control of a nuclear crisis and to feed and shelter
the thousands of people left homeless by last week's devastating tsunami,
the Japanese government is facing a growing chorus of criticism for its
handling of the catastrophe.
Amid vociferous unease in the Japanese media at the apparent lack of
progress in providing people in the country's stricken north-east with the
bare essentials they need to su... 阅读全帖 |
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s********n
发帖数: 26222 | 14 流传很久的是， 米犹有建立world government的计划， 毁灭单个的国家政府， 而把
全世界置于米犹的控制之下。
这和正在发生的事情非常相似。
GEORGE SOROS AND THE ROTHSCHILD CONNECTION
Who was George Soros?
[H: Better yet: Who IS this man? Meet one of the most prominent of the
players in your downfall. He very much ‘was’ but he also IS and did, in
fact wreck the economy of Southeast Asia in very short order. He is a top
player in such as Bilderbergers and all the other controlling groups while
doing nothing “illegal”. But then no one can do anything illegal i... 阅读全帖 |
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t*********r
发帖数: 2558 | 16 Combining driving pleasure and economy
In developing TSI technology it was our aim to create engines that offer
significant benefits by reducing fuel consumption and CO2 emissions but at
the same time are also impressive for their superb power delivery.
Advantages resulting from “downsizing”
The recipe for the success of Volkswagen’s TSI engines is to be found in “
downsizing”. Maximum power is obtained with minimum fuel consumption from a
smaller engine. The reduction in engine size has brought... 阅读全帖 |
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g********d
发帖数: 19244 | 17 Updated: Mon, 30 Jul 2012 01:00:00 GMT
2012's most reliable cars
http://money.uk.msn.com/features/2012s-most-reliable-cars
The top ten
1. Skoda Yeti (2009-, petrol versions) 98%
2. Honda CR-V (2007-, petrol versions) 97%
3. Citro?n C1 (2005-) 96.9%
4. VW Passat/Passat estate (2010-) 96.5%
5. Toyota Auris Hybrid (2010-) 96.4%
6. Honda Insight (2009-) 96.1%
=6. Renault Mégane (2008-) 96.1%
8. Honda Jazz (2008-) 96%
9. BMW 1 Series Coupé (2008-) 95.9%
10. Nissan Note (2006-, petrol versions) 95.8%
... 阅读全帖 |
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t**t
发帖数: 27760 | 18 Hardware.fr网站每隔半年就会做一次DIY配件的返修率调查，日前2013年度上半年的结
果统计出来了，这一次又有哪些厂商中招呢。
SSD固态硬盘返修率排名
每次看到SSD返修率的排名总会觉得某个牌子会中枪，果不其然。
厂商排名：
- Samsung 0.05% (contre 0.48%)
- Plextor 0.16% (N/A)
- Intel 0.37% (contre 0.45%)
- Crucial 1.12% (contre 1.11%)
- Corsair 1.61% (contre 1.05%)
- OCZ 6.64% (上次5.02%) /不算Petrol/Ocrabe型号是2.92%，上次是3.05%)
具体型号排名：
- 52.07% OCZ Octane SATA 2 128GB
- 45.26% OCZ Petrol 128GB
- 44.76% OCZ Octane SATA 2 64GB
- 40.57% OCZ Petrol 64GB
- 10.23% OCZ Agility 4 256GB
- 8.70% OCZ Octane SATA 3 2... 阅读全帖 |
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i****x
发帖数: 17565 | 19 高转引擎主要靠短stroke，活塞轻量化，减低摩擦，还有啥？
Ariel Atom 500 V8 10,600 rpm
Audi R8 V8 8000 rpm (rev limiter 8250 rpm)
Audi Q7 6.0 V12 diesel 4750 rpm
Bentley Azure 'T' 6.75 V8 4500 rpm (is a petrol, but low redline)
BMW E46 M3 I6 8000 rpm
BMW E90 M3 V8 8400 rpm
BMW E39 M5 V8 7000 rpm
BMW E60 M5 V10 8250 rpm
BMW F10 M5 V8 7200 rpm
Bugatti Veyron turbocharged W16 6500 rpm
Chevrolet Corvette C6 ZR1 supercharged V8 6500 rpm
Ferrari 348 V8 7500 rpm
Ferrari F50 V12 8500 rpm
Ferrari Enzo V12 8000 rpm (rev limiter 825... 阅读全帖 |
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i****x
发帖数: 17565 | 20 柴油低load效率也很高，hybrid得不到太大好处，最多也就是回收刹车能量，这样其实
根本不用hybrid，用bmw3那类回收刹车能充电池的半hybrid技术就行了。
While a higher compression ratio is helpful in raising efficiency, diesel
engines are much more efficient than gasoline (petrol) engines when at low
power and at engine idle. Unlike the petrol engine, diesels lack a butterfly
valve (throttle) in the inlet system, which closes at idle. This creates
parasitic loss and destruction of availability of the incoming air, reducing
the efficiency of petrol engines at idl... 阅读全帖 |
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f***4
发帖数: 886 | 21 看来这北爱尔兰人和英国的仇恨深入人心啊，大多数是小屁孩。。
英国也很搞笑，自己的这点屁事儿也搞不定，倒是全球当美第的腿子很积极。呵呵
ARDOYNE:
Police attacked with petrol bombs
Policewoman injured by lump of masonry
70 baton rounds fired by police
Two people injured by baton rounds
ORMEAU ROAD:
Petrol bombs and paint thrown at police
Car set alight on Ormeau Bridge
BOTANIC:
Riot police called to station platform for serious disturbance
WEST BELFAST
Bus hijacked and forced to drive 'bomb' to Woodbourne Police Station. It was
a hoax |
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b*****e
发帖数: 5476 | 22 用twitter通知灾民领取援助
一堆老头老太太到老了还得学习twitter
http://www.bbc.co.uk/news/world-asia-pacific-12780060
I find out information on the arrival of relief goods via Twitter.
If you have the information then you can pass this on to your friends and
relatives in, for example, Haramachi-ku, Minami-Soma-shi.
But for people without access to Twitter they miss out on information such
as when to start queuing at the petrol station because information about
when the petrol station is going to open and when they are g... 阅读全帖 |
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m**********n
发帖数: 27535 | 23 BEIJING (Reuters) - A Tibetan Buddhist monk burned himself to death on
Monday in southwest China calling for the return of the Dalai Lama, the
exiled spiritual leader condemned by Beijing as a separatist, a group
campaigning for Tibetan self-rule said.
The monk's self-immolation could spark fresh tensions in heavily ethnic
Tibetan parts of Sichuan, which neighbors the official Tibet region,
following protests in March when a Tibetan monk there also burned himself to
death.
The London-based Free ... 阅读全帖 |
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c**i
发帖数: 6973 | 24 Here you come again, slinging mud at US.
It is common knowledge that gasoline costs less in US than in Europe,
because Europe has a propensity to tax--and impose HIGH tax.
(1) The tax in this section applies to gasoline only (another rate for
diesel, in both Germany and US).
fuel tax
http://en.wikipedia.org/wiki/Fuel_tax
("In the United States, the fuel tax receipts are often dedicated or
hypothecated to transportation projects so that the fuel tax is considered
by many a user fee. In other coun... 阅读全帖 |
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I******a
发帖数: 3812 | 26 http://gyral.blackshell.com/names.html
Visit the original once in a while. Apparently, it's chock full o' updates.
Slur Represents Reasons/Origins
51st Stater Canadians Self-explanatory.
Abba-Dabba Arabs Used in the movie "Betrayed" by rural American hate group.
Abo Australian Aboriginal Derogative shortened term for Aboriginal.
Adolf Germans Hitler, of course. Generally thought of the worst person ever.
Ahab Whites From Moby-Dick. Ahab hunted the white whale.
Ainu Japanese Aboriginal Originall... 阅读全帖 |
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T********N
发帖数: 2680 | 27 1 held with fake Rs 2000 notes, over Rs 4 lakh seized in raid:
In two separate incidents, Odisha Police arrested a youth on charge of
circulating fake Rs 2,000 notes and recovered Rs 4.8 lakh stocked in the
newly-introduced denomination post the Centre's demonetisation move.
Madhusudan Meher of Jharsuguda was arrested while he was trying to use the
fake currency at petrol pump in Sunarimunda, a senior police officer said.
The petrol outlet staff handed him over to the cops.
"The note is a colou... 阅读全帖 |
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W***n
发帖数: 11530 | 28 Texas mother shoots man trying to steal car with children inside
4 hours ago
A mother in Texas shot a carjacker who was stealing her vehicle while her
two young children were inside, police say.
The woman jumped back into her SUV after the suspect got into the driver's
seat at a Dallas petrol station on Wednesday night, according to police.
Police say she grabbed her gun and shot the carjacker in the face when he
refused to stop, causing him to crash.
The woman's sons - aged two and four - were ... 阅读全帖 |
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l*****r
发帖数: 687 | 29 Design
A Molotov cocktail is a breakable glass bottle containing a flammable
substance such as gasoline, alcohol or a napalm-like mixture, with some
motor oil added, and usually a source of ignition such as a burning cloth
wick held in place by the bottle's stopper. The wick is usually soaked in
alcohol or kerosene, rather than petrol.
In action, the wick is lit and the bottle hurled at a target such as a
vehicle or fortification. When the bottle smashes on impact, the ensuing
cloud of fuel drop... 阅读全帖 |
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x****u
发帖数: 32 | 30 https://www.bbc.com/news/technology-50894769
The Hong Kong protests are being played out on Grand Theft Auto (GTA) V
online.
Players in Hong Kong realised they could dress up as protesters after a new
update for the game was released earlier this month.
They spread the word on LIHKG - which has been called the Hong Kong version
of social news site Reddit - and started organising violent expeditions.
Mainland players responded by showing up dressed as riot police with water
cannon trucks.
Hong Ko... 阅读全帖 |
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y******n
发帖数: 8667 | 31 google了一下，总结几个观点：
1.It used to be advised not to let the fuel get too low in the tank. This
was because dirt could lay in the bottom of the fuel tank, this dirt could
then be picked up and block fuel lines and jets. Fuel these days is so well
filtered that this is no longer a problem so it makes no difference when you
decide to add more fuel.
2.It depends on what you are trying to accomplish: 1- In the winter it is
better to fill the tank ASAP to prevent moisture from potentially freezing
the ga... 阅读全帖 |
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d****n
发帖数: 12461 | 32 按照wiki的说法：
“In some countries, such as Germany and Belgium, diesel fuel is taxed lower
than petrol (gasoline) (typically around 20% lower), but the annual vehicle
tax is higher for diesel vehicles than for petrol vehicles.
...The point at which a diesel vehicle becomes less expensive than a
comparable petroleum vehicle is around 20,000 km a year (12,500 miles per
year) for an average car. However, due to the recent rise in oil prices, the
advantage point is becoming lower, resulting in more peop... 阅读全帖 |
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M***s
发帖数: 8769 | 33 The BBC announced today that Toyota has announced another world wide recall
affecting 1.7 million cars over concerns of possible fuel leaks and other
defects.
Although most of the recalls affect Japanese car owners, there are also a
number of cars (to the tune of 421,000) in the rest of the world. A huge
portion of those defects affect the Toyota Avensis model in Europe and IS
and GS Lexus models in North America.
The fuel leakage problem isn’t life threatening – it’s due to an improper
installa... 阅读全帖 |
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d***a
发帖数: 13752 | 34 你说的还是Audi做的比BMW好，这个我也说过，总体上来说没错。但Audi的设计也有明
显的弱点，它的反应模式是固定的。具体说，Torsen差速器一般提供1:3的Torque分配
，如果两轮间的Torque差别过大，也会出现打滑，这时就不如电控系统了。
泛一点说，纯机械系统在适合它的简单应用下，确实比机电系统反应快，这是没有疑问
的。机电系统的瓶颈也是在机械的actuator。但有两点。一是机电系统做得好，也能接
近于机械的反应速度。第二，如果反应模式复杂，那么机械系统就做不出来，或延迟也
有不小的延迟。并不是所有的机械系统都是纯刚性的。
这个Fiat在2002年做了，2009年投产。前面说过，机电系统的设计还有很多潜力可挖。
http://en.wikipedia.org/wiki/Multiair
Multiair (or Uniair) is an electro-hydraulic variable valve actuation
technology controlling air intake (without a throttle valve) in petrol or
... 阅读全帖 |
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f*u
发帖数: 5576 | 35 Not really.
We did see some retired people in RV camping site but not many, a lot more
are young family with little kids indeed.
Each SUV with towing capability already addressed all your concerns, such
as transmission cooling, even sway control etc.
As long as you didn't exceed the car spec and have proper setup, it's save
to town for both of you and your car, no matter diesel and petrol.
diesel usually have high low torque comparing to the same class of gas
engine, it has advantage to start f... 阅读全帖 |
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w*********r
发帖数: 42116 | 36 Gasoline Direct Injection(GDI) , also known as Petrol Direct Injection or
Direct Petrol Injection or Spark Ignited Direct Injection(SIDI) or Fuel
Stratified Injection(FSI) .
现在不过是把一些新技术加进去。 |
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i****x
发帖数: 17565 | 37 Mps wiki
The mean piston speed is the average speed of the piston in a reciprocating
engine. It is a good indicator of the class and performance of an engine
relative to its competitors. Honda S2000 has the highest piston speed for
any production car (25.2 m/s). The BMW S38B38 3.8 litre six cylinder engine
from the 1993-1995 e34 M5 spoerts saloon has a redline of 7200rpm and stroke
of 90mm giving a mean piston speed of 21.6m/s. 再次专门提到bmw
low speed diesels
~8.5 m/s for marine and electric power g... 阅读全帖 |
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t**********3
发帖数: 12623 | 38 1. Scirocco 1.4T / Scirocco R 2.0T
2. Euro-spec Passat AllTrek wagon
3. B-Class (petrol, diesel, F-Cell)
4. A1/Q1 (petrol, TDI)
5. All of above
6. Others __________ |
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b*****t
发帖数: 840 | 39 不懂车的人看纸面性能就哇~~好牛鼻
发动机做的性能好又省油还能有什么办法，无非是direct injection和turbo
这两个都是DI + turbo没什么奇怪的
但。。
direct injection的问题有二个
一，是injector时时处于缸内高压状态，1000多的psi，相比port injection高了百倍
，工作环境恶劣，你要是开过柴油机，你就知道engine和petrol保养的区别就是柴油机
要定时清洁injector。DI engine可以说是集合了petrol耗油和柴油high maintenance
的缺点
二，DI在intake valve积碳是非常严重的，port injection直接喷在valve，addictive
可以清洁valve。 DI绕开直接喷缸内，intake valve时间久了必然积碳，导致engine性
能严重下降。所以老的DI engine比port injection还要差，performance惨不忍睹
所以你以为别的大厂为啥不直接上direct injection + turbo？这根本不是技术问题
人家走稳重线路，不像小厂... 阅读全帖 |
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b*****t
发帖数: 840 | 40
一看就知道你不懂什么是hybrid
第一，本田没有虚标，为什么？见第二
第二，accord hybrid技术比pruis更先进，动能转化效率更高，
为啥？
本田的这代accord是最新的hybrid技术，过去的本田hybrid只有一个电机，安装在发动
机和变速箱之间。
新的hybrid有两个电机，和prius的非常类似，但prius用一组planetary gear来连接两
组电机形成多种动力输出组合，honda最新的hybrid只有两组电机，省去了planetary那
组东西，所以理论上有更好的动能转化效率。
但是，hybrid本身的动力来源依然是petrol engine，不懂的人看到混合动力这几个字
就觉得好像这车不比petrol车多几倍的MPG都不好意思拿出来见人，但是hybrid本身只
通过回收制动所损失的一部分动能还有减少engine空转还有连续性的transmission来提
高MPG。所以hybrid只有在市区才有MPG的优势，上了高速和普通车没有什么差别。
hybrid的电池和气温关系也很大，冬天肯定MPG比夏天少。综合的因素影响MPG非常的多
，但是基本上大多数人... 阅读全帖 |
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W***n
发帖数: 11530 | 42 High quality global journalism requires investment. Please share this
article with others using the link below, do not cut & paste the article.
See our Ts&Cs and Copyright Policy for more detail. Email ftsales.support@ft
.com to buy additional rights. http://www.ft.com/cms/s/0/db6d41e6-a3db-11e5-873f-68411a84f346.html#ixzz3uXFviMvp
December 16, 2015 11:20 am
Ex-Cisco tech chief joins Chinese electric carmaker
Richard Waters in London
Padmasree Warrior, strategic advisor for Cisco Systems Inc., s... 阅读全帖 |
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A**********0
发帖数: 6942 | 43 Frequently Bought Together
+ +
Price For All Three: $170.91
These items are shipped from and sold by different sellers. Show details
Buy the selected items together
This item: OCZ Petrol 128GB SATA 6Gb/s PTL1-25SAT3-128G 2.5" Solid State
Drive (SSD) with up to 360MB/s read and 15k IOPS write by OCZ $83.23
OCZ Petrol 64GB SATA 6Gb/s PTL1-25SAT3-64G 2.5" Solid State Drive (SSD)
with up to 185MB/s read and 8k IOPS write by OCZ $74.70
Pantene Pro-V Nature Fusion S... 阅读全帖 |
|
c**k
发帖数: 1228 | 44 ScienceDaily (Feb. 4, 2011) — In Spain it is relatively common to come
across gas (petrol) stations surrounded by houses, particularly in urban
areas. Researchers from the University of Murcia (UM) have studied the
effects of contamination at petrol stations that are potentially harmful to
health, which can be noted in buildings less than 100 metres from the
service stations.
http://www.sciencedaily.com/releases/2011/02/110204130315.htm |
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f*u
发帖数: 5576 | 45 Not really.
We did see some retired people in RV camping site but not many, a lot more
are young family with little kids indeed.
Each SUV with towing capability already considered all your concerns, such
as transmission cooling, even sway control etc.
As long as you didn't exceed the car spec and have proper setup, it's save
to town for both of you and your car, no matter diesel and petrol.
diesel usually have high low torque comparing to the same class of gas
engine, it has advantage to start ... 阅读全帖 |
|
k********8
发帖数: 7948 | 46 In a radical departure for the car-mad country, home to legendary marques
such as Fiat, Ferrari and Lamborghini, 1,750,000 bikes were bought in 2011
compared to 1,748,000 motor vehicles.
As austerity cuts deepen and petrol prices hit a new high, the purchase of
new cars has dropped to levels not seen since the 1970s.
Families are buying bikes, ditching their second cars and signing up to car
pool schemes – a major shift for a nation which has one of the highest car
ownership rates in the world, ... 阅读全帖 |
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a*o
发帖数: 19981 | 47 你这也太民科了，直接就assume电动机和汽油机能源效率一样？
再说了，发动机效率0.8-0.85? 读读wiki：
http://en.wikipedia.org/wiki/Fuel_efficiency
Diesel engines generally achieve greater fuel efficiency than petrol (
gasoline) engines. Passenger car diesel engines have energy efficiency of up
to 41% but more typically 30%, and petrol engines of up to 37.3%, but more
typically 20%. T
电动机的效率倒是好像高多了。 |
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s*********3
发帖数: 141 | 49 Maryland State Government have proposed raising the gasoline tax of 15 cents.
Maryland Transportation Fund Blue-Ribbon Committee (Blue Ribbon Commission
on Maryland Transportation Funding) in such content and not the State
legislature to raise taxes, paving, and suggested to Martin O'Malley.
Current 23.5 cents impose petrol, over the next three years to raise every
year for five cents apiece, step by step, this is not the State legislature
in January, to coincide with the deliberations of the fa... 阅读全帖 |
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