-
1 bubble development
= bubble memory development разработка ЗУ на ЦМД -
2 bubble development
= bubble memory development разработка ЗУ на ЦМДThe New English-Russian Dictionary of Radio-electronics > bubble development
-
3 bubble development
1) Электроника: разработка ЗУ на ЦМД2) Микроэлектроника: разработка памяти на ЦМД -
4 bubble development
English-Russian dictionary of microelectronics > bubble development
-
5 bubble development
English-Russian dictionary of electronics > bubble development
-
6 bubble memory development
English-Russian electronics dictionary > bubble memory development
-
7 bubble memory development
The New English-Russian Dictionary of Radio-electronics > bubble memory development
-
8 development
1) развитие2) разработка; внедрение3) разработка программного обеспечения; программирование5) визуализация (напр. магнитной записи)6) вчт представление в развёрнутом виде; разложение•- activator-stabilizer development
- advanced development
- alternative development
- bottom-up development
- bubble development
- bubble memory development
- chemical development
- conventional development
- cross development
- custom development
- dry development
- engineering development
- heat development - magnetic record development
- magnetooptic development
- monobath development
- object-oriented development
- organizational development
- powder development - software development
- spray development
- top-down development
- two-stage development
- wet development -
9 development
1) развитие2) разработка; внедрение3) разработка программного обеспечения; программирование5) визуализация (напр. магнитной записи)6) вчт. представление в развёрнутом виде; разложение•- advanced development
- alternative development
- bottom-up development
- bubble development
- bubble memory development
- chemical development
- conventional development
- cross development
- custom development
- development of photoresist
- dry development
- engineering development
- heat development
- Jackson system development
- joint application development
- knowledge development
- magnetic record development
- magnetooptic development
- monobath development
- object-oriented development
- organizational development
- powder development
- rapid application development
- resist development
- software development
- spray development
- top-down development
- two-stage development
- wet developmentThe New English-Russian Dictionary of Radio-electronics > development
-
10 development
1) розробка; проектування (див. т-ж design) 2) проявлення (фоторезиста)- bubble -memory development- bubble development
- custom development
- dry development
- immersion development
- in-house CAD system development
- spray development
- static-charge development
- wet developmentEnglish-Ukrainian dictionary of microelectronics > development
-
11 bubble-counting method
The English-Russian dictionary general scientific > bubble-counting method
-
12 bubble memory development
Электроника: разработка ЗУ на ЦМДУниверсальный англо-русский словарь > bubble memory development
-
13 bubble (-memory) development
розробка пам’яті на ЦМДEnglish-Ukrainian dictionary of microelectronics > bubble (-memory) development
-
14 bubble (-memory) development
розробка пам’яті на ЦМДEnglish-Ukrainian dictionary of microelectronics > bubble (-memory) development
-
15 bubble memory development
English-Russian dictionary of electronics > bubble memory development
-
16 maximum bubble method
The English-Russian dictionary general scientific > maximum bubble method
-
17 chip
1) кристал (напр. ІС) 2) інтегральна схема, ІС; мікросхема (див. т-ж circuit, integration) 3) обколювати (напр. кристал) - array chip
- backbonded chip
- balls-down chip
- bare chip
- beam-leadedchip
- beam-leadchip
- bubble-domain chip
- bubble-memory chip
- bumped chip
- committed chip
- component chip
- contiguous-disk bubble chip
- contiguous-disk chip
- custom -built chip
- custom chip
- customizable chip
- dense chip
- discrete-device chip
- electronic chip
- face-down chip
- factory-programmable chip
- fast chip
- fault-free chip
- fault-tolerant chip
- flip chip
- full-wafer chip
- fuse-programmable chip
- gate-array chip
- glue chip
- heterogeneous chip
- highly-расked chip
- hybrid chip
- hyper chip
- IC chip
- individual circuit chip
- integrated-microcircuit chip
- mask-programmable chip
- master-slicechip
- masterchip
- master-slice logic chip
- memory chip
- micro chip
- microcircuit chip
- microprocessor chip
- monolithic chip
- multilead chip
- naked chip
- nongold backed chip
- opto chip
- packaged chip
- pedestal chip
- peripheral chip
- pipelined chip
- planar passivated chip
- Poly Use chip
- process-development chip
- process-validation chip
- resistor chip
- semiconductor chip
- SLS chip
- solder chip
- super chip
- support chip
- TAB chip
- test chip
- thick-film chip
- thin-film chip
- tolerant chip
- ultra chip
- uncommitted chip
- unpackaged chip
- wire-bonded chip
- XR chip
- X-ray made chip
- III-V chip -
18 time
1) время || измерять [определять\] время; отмечать время; хронометрировать2) период [интервал\] времени4) срок; длительность, продолжительность5) темп; такт6) хронировать; синхронизировать; осуществлять привязку по времени7) регулировать взаимное положение фаз периодических процессов•time on — время включения; продолжительность пребывания во включенном состоянии;time to failure — наработка на отказ;time to repair — 1. наработка до ремонта 2. время ремонта-
absolute time
-
acceleration time
-
acceptance time
-
access time
-
acquisition time
-
action time
-
active repair time
-
actual airborne time
-
actual time
-
actuation time
-
addition time
-
add time
-
addressing time
-
administrative time
-
advance time
-
ageing time
-
aging time
-
air cutting time
-
air time
-
alignment time
-
annealing time
-
apparent time
-
arcing time
-
arc time
-
arrestment time
-
arrival time
-
assembly time
-
astronomical time
-
atomic time
-
attack time
-
attenuation time
-
average time
-
averaging time
-
backup time
-
baking time
-
base transit time
-
basin lag time
-
batch-free time
-
block-to-block time
-
blowing time
-
braking time
-
break contact release time
-
bridging time
-
bubble penetration time
-
bubble waiting time
-
build up time
-
burning time
-
burn-off time
-
burst time
-
caging time
-
calendar time
-
capture time
-
carbonizing time
-
carrier transit time
-
cell production time
-
chambering time
-
changeover time
-
characteristic time
-
charge time
-
check-in time
-
chill time
-
chock-to-chock time
-
civil time
-
clear time
-
clearing time
-
clipping time
-
closing time
-
compilation time
-
computer time
-
conditioning time
-
contact time
-
continuous recording time
-
continuous time
-
conversion time
-
cooking time
-
cool time
-
critical time
-
cumulative cutting time
-
cumulative operating time
-
cure time
-
current impulse time
-
current time
-
current-rise time
-
cutoff time
-
cutting time
-
cutting-in time
-
cycle time
-
damping time
-
data-hold time
-
daylight saving time
-
dead time
-
debatable time
-
debugging time
-
debug time
-
decay time
-
deceleration time
-
definite minimum inverse operating time
-
definite operating time
-
deionization time
-
delay time
-
departure time
-
detention time
-
development time
-
discharge time
-
disconnection time
-
discrete time
-
divide time
-
door-to-door time
-
down time
-
drift-transit time
-
drift time
-
drive time
-
dropout time
-
dust-free time
-
dwelling time
-
dwell time
-
early finish time
-
early start time
-
effective time
-
elapsed time
-
emptying time
-
engine ground test time
-
engine operating time
-
engine run-in time
-
engineering time
-
entry time
-
ephemeris time
-
erase time
-
error-free running time
-
estimated elapsed time
-
estimated time of checkpoint
-
execution time
-
exposure time
-
extinction time
-
fall time
-
fast time
-
fault clearing time
-
fault time
-
fetch time
-
firing time
-
first copy-out time
-
flash-off time
-
flight block time
-
flight dual instruction time
-
flight duty time
-
flight time
-
flooding time
-
floor-to-floor time
-
flotation time
-
flushing time
-
flyover time
-
forepumping time
-
forge time
-
freezing time
-
fuel-doubling time
-
fueling time
-
fuel-residence time
-
full operating time
-
fusing time
-
gate-controlled delay time
-
gate-controlled rise time
-
gate-controlled turn-on time
-
gate-controlled-turn-off time
-
gating time
-
generation time
-
Greenwich mean time
-
gross-coking time
-
ground operating time
-
group delay time
-
guard time
-
gyro erection time
-
handling time
-
heat time
-
high-water time
-
holding time
-
hold time
-
hold-off time
-
idle running time
-
idle time
-
ignition time
-
impulse front time
-
impulse tail time
-
incidental time
-
ineffective time
-
initial setting time
-
in-pile time
-
installation time
-
instruction time
-
instrument flight time
-
interaction time
-
interarrival time
-
interpulse time
-
interrupting time
-
intrinsic time
-
ionization time
-
keeping time
-
lag time of flow
-
lag time
-
landing gear extension time
-
latency time
-
lead time
-
leading-edge time
-
life time
-
local time
-
lockage time
-
locking time
-
low-water time
-
machine time
-
maintenance time
-
make contact operating time
-
make contact release time
-
make time
-
make-break time
-
manipulation time
-
Markov's time
-
Markov time
-
maximum permissible short-circuit clearing time
-
mean time between failures
-
mean time between power failures
-
melting time
-
mill delay time
-
mill pacing time
-
mixing time
-
modal transit time
-
monolayer time
-
moving time
-
multiplication time
-
near-real time
-
Newtonian time
-
no-load running time
-
nonreal time
-
normally-closed contact release time
-
nuclear time
-
nucleation time
-
object time
-
observation time
-
off time
-
off-stream time
-
on time
-
on-stream time
-
opening time
-
operating time
-
operator's time
-
optimized contact time
-
orbit phasing time
-
outage time
-
output voltage setup time
-
overall cycle time
-
paralysis time
-
partial operating time
-
particle residence time
-
peak-load time
-
periodic time
-
pickup time
-
plasma time
-
playing time
-
poison override time
-
predetermined time
-
preroll time
-
preset time
-
press down time
-
pressure resistance time
-
prestrike time
-
production pitch time
-
productive time
-
program fetch time
-
program testing time
-
propagation delay time
-
propagation time
-
proper time
-
pulling-out time
-
pull-out time
-
pull-in time
-
pull-up time
-
pulse fall time
-
pulse rise time
-
pulse time
-
ramp time
-
reaction time
-
read time
-
readiness time
-
reading readout time
-
reading time
-
real time
-
recession time
-
reclosing dead time
-
reclosing time
-
recovery time
-
reference time
-
release time
-
remaining life time
-
repair time
-
reset time
-
residence time
-
response time
-
restoration time
-
retention time
-
retrace time
-
retrieval time
-
reverberation time
-
reversal time
-
rewind time
-
rig time
-
rig total operating time
-
rig-down time
-
rig-up time
-
rise time
-
rolling time
-
roughing time
-
round-trip time
-
route-setting time
-
run time
-
run-down time
-
running time
-
running-down time
-
running-in time
-
run-up time
-
scheduled departure time
-
screen time
-
search time
-
seed-free time
-
seek time
-
selection time
-
self-extinction time
-
service time
-
serviceable time
-
servicing time
-
set time
-
setting time
-
settling time
-
setup time
-
shelf time
-
shipping time
-
ship time
-
shot time
-
sidereal time
-
signal modulation time
-
signal transit time
-
simulated time
-
sludging time
-
snubbing time
-
soaking time
-
solar time
-
sowing time
-
specified time
-
spending time
-
spray-on time
-
stabilization time
-
standard time
-
standing time
-
starting time
-
start time
-
station time
-
stay-down time
-
stock-descent time
-
stop time
-
stopping time
-
storage time
-
subtraction time
-
subtract time
-
succession time
-
summer time
-
sweep time
-
switchgear operating time
-
switching time
-
switchover time
-
tack-free time
-
takedown time
-
tap-to-tap time
-
task time
-
thermal death time
-
throughput time
-
time of arrival
-
time of coincidence
-
time of delivery
-
time of fall
-
time of flight
-
time of persistence
-
time of swing
-
tool-in-cut time
-
track time
-
traffic release time
-
trailing-edge time
-
trailing time
-
transfer time
-
transient time
-
transit time
-
transition time
-
translating time
-
transmission time
-
traveling time
-
travel time
-
trigger time
-
trip time
-
troubleshooting time
-
true time
-
turnaround time
-
turn-off time
-
turn-on time
-
turnover time
-
turnround time
-
unit time
-
universal time
-
up time
-
useful time
-
vehicle-off-the-road time
-
viewing time
-
waiting time
-
wait time
-
waiting-on-cement time
-
warm-up time
-
wavefront time
-
wavetail time
-
write time
-
Zebra time
-
zero time
-
zonal time
-
Zulu time -
19 oil
1. нефть || нефтяной2. масло ( растительное или минеральное) || масляный3. жидкая смазка, смазочное масло || смазыватьoil struck at... — нефть встречена на глубине...
— hot oil— base oil— cut oil— dead oil— form oil— fuel oil— lean oil— live oil— load oil— lock oil— net oil— oil in— raw oil— rich oil— rock oil— seep oil— sour oil— tank oil— tar oil— wet oil
* * *
нефть (все жидкие углеводороды, получаемые из скважин, и конденсаты, извлекаемые из природного газа)pipeline quality crude oil — нефть, соответствующая требованиям транспортирования по трубопроводу (упругость паров по Рейду в подвижном состоянии -100)
tanker specification crude oil — нефть, соответствующая требованиям транспортирования танкерами (упругость паров по Рейду в подвешенном состоянии -10)
to hold back oil in the reservoir — удерживать нефть в коллекторе;
— bad oil— base oil— cut oil— dead oil— dry oil— dump oil— fuel oil— hot oil— live oil— load oil— raw oil— rock oil— sour oil— tank oil— wet oil— wild oil
* * *
1. нефть
* * *
нефть (<<жидкие углеводороды, извлекаемые из природного газа) || нефтянойoil in bulk — 1) нефть наливом; нефтепродукты наливом 2) нефть в резервуаре;
oil in hole — нефть в стволе скважины;
oil in place — нефть в пласте; пластовая нефть; нефть, предположительно находящаяся в коллекторе;
oil in reserve — 1) нефть, заполняющая трубопроводы и резервуары 2) нефтепродукт, заполняющий систему заводских резервуаров и трубопроводов;
oil in sight — видимые запасы нефти;
oil in situ — нефть в пласте;
oil in storage — 1) нефть в трубопроводах 2) избыточная ( не отправленная потребителям) нефть на нефтебазах;
oil initially in place — первоначальные запасы нефти в коллекторе;
oil originally in reservoir — начальное содержание нефти в пласте;
to carry oil — содержать нефть;
to flood oil toward production well — вытеснять нефть ( водой) к добывающей скважине;
to hold back oil in the reservoir — удерживать нефть в коллекторе;
to make oil — добывать нефть;
to run the oil — 1) измерять количество нефти в промысловых резервуарах 2) перекачивать нефть из промысловых резервуаров по трубопроводу;
to skim off oil — собирать нефть, разлившуюся на поверхности воды;
to strike oil — обнаруживать месторождение нефти;
- oil of paraffinoil to surface — нефть, поступающая на поверхность;
- abandoned oil
- absorbent oil
- adsorbed oil
- absorption oil
- acid oil
- acid-refined oil
- acid-stage oil
- additive blended oil
- additive motor oil
- additive treated oil
- additive-type oil
- admiralty fuel oil
- aeroengine oil
- air filter oil
- aircraft oil
- airplane oil
- all-purpose engine oil
- alpha oil
- American paraffin oil
- Appalachian oil
- aqueous-soluble oil
- Arctic oil
- aromatic-base crude oil
- asphalt-base oil
- asphalt-free oil
- asphaltic road oil
- asphaltum oil
- automobile oil
- average-quality oil
- axle oil
- bad oil
- base oil
- batch oil
- Beaumont oil
- bentonite diesel oil
- benzolized oil
- benzyl mustard oil
- black oil
- blasting oil
- blended fuel oil
- blue oil
- bobbin oil
- bodied oil
- boiler oil
- branded oil
- break-in oil
- bright oil
- bubble point oil
- burner oil
- burning oil
- by-passed oil
- capacitor oil
- car oil
- carbon oil
- cargo oil
- catalytic gas oil
- circuit-breaker oil
- clay-filtered oil
- clean oil
- cleaning oil
- cleansing oil
- coal oil
- coastal oil
- coker gas oil
- cold-settled oil
- cold-test oil
- commercial oil
- compressor oil
- concrete form oil
- condensed oil
- condenser oil
- conventional oil
- cordage oil
- corrected oil
- crankcase oil
- crevice oil
- crude oil
- crude mineral oil
- crude petroleum fuel oil
- crude shale oil
- crystal oil
- cut oil
- cutter oil
- cutting oil
- cycle oil
- cycle gas oil
- cylinder oil
- dangerous oil
- dead oil
- debenzolized oil
- degassed oil
- denuded oil
- desalinized oil
- development oil
- dielectrical oil
- diesel oil
- diesel-fuel oil
- dispersed oil
- dissolved oil
- distillate oil
- distillate fuel oil
- domestic oil
- doped oil
- dry oil
- dual-purpose oil
- dump oil
- earth oil
- economically recoverable oil
- electrical switch oil
- emulsified crude oil
- emulsion oil
- engine oil
- enriched oil
- entrained oil
- equilibrium oil
- estimated original oil in place
- explosive oil
- extra-heavy crude oil
- first-quality oil
- fluid oil
- flush oil
- fluxing oil
- foam oil
- foot's oil
- foreign oil
- form oil
- fossil oil
- free oil
- fuel oil
- furnace oil
- gaged oil
- gas oil
- gas absorber oil
- gas and mud-cut oil
- gas-cut oil
- gas-cut load oil
- gear oil
- gearbox oil
- gearcase oil
- gelled oil
- graphite lubrication oil
- grease oil
- grease-spoiled oil
- green bloom oil
- green cast oil
- hard oil
- heating oil
- heavy oil
- heavy-cycle gas oil
- heavy-duty supplement oil
- heavy gas oil
- heavy lubricating oil
- heavy neutral oil
- high-gravity oil
- high-pour-point oil
- high-pour-test oil
- high-pressure oil
- high-temperature shale oil
- highly detergent oil
- highly refined oil
- highly resinous oil
- hot oil
- hybrid-base oil
- hydraulic oil
- hydraulic system oil
- hydrocarbon oils
- hydrofined oil
- hydrogen-deficient gas oil
- illuminating oil
- imported oil
- inactive oil
- incremental oil
- industrial white oil
- initial oil in place
- initial oil in reservoir
- in-place oil
- inspissated oil
- instrument oil
- insulating oil
- intermediate oil
- irreducible oil
- kerosene oil
- lake oil
- lamp oil
- lean oil
- lease oil
- light oil
- light crude oil
- light cycle gas oil
- light engine oil
- light fuel oil
- light gas oil
- light viscosity oil
- lightwood oil
- limestone oil
- live oil
- livered oil
- load oil
- lock oil
- long-time burning oil
- loom oil
- low-gravity oil
- low-viscosity oil
- lubricating oil
- machinery oil
- make-up oil
- marine oil
- marine engine oil
- merchantable oil
- middle oil
- Middle East oil
- migratory oil
- mineral oil
- mineral earth oil
- mineral seal oil
- miner's oil
- mixed asphaltic base oil
- mixed-base oil
- mother oil
- motor oil
- moveable oil
- mud oil
- mud-cut oil
- multigrade oil
- noncongealable oil
- nondrying oil
- opal oil
- naphthalene oil
- naphthene oil
- natural oil
- net oil
- net residual oil
- nonabsorbent oil
- nonfoaming oil
- nonrecoverable oil
- nonresinous oil
- nonsulfurous oil
- occluded oil
- offshore oil
- original oil in place
- original stock tank oil in place
- oxydized oil
- oxygenated oil
- pale oil
- paraffin-base oil
- paraffin-base crude oil
- paraffinic oil
- pattern oil
- penetrating oil
- petrolatum oil
- petroleum fuel oil
- petroleum gas oil
- pilot oil
- piped oil
- pipeline oil
- pipeline quality crude oil
- polybase oil
- power oil
- primary oil
- produced oil
- prospective oil
- pumping load oil
- pure oil
- range oil
- raw oil
- recirculating oil
- reclaimed lubricating oil
- recoverable oil
- recovered oil
- red oil
- reduced oil
- reduced fuel oil
- refined oil
- residual oil
- retained oil
- returning circulation oil
- rich oil
- road oil
- rock oil
- roily oil
- rustproof oil
- saturated oil
- scavenge oil
- scrubbing oil
- secondary oil
- seep oil
- selective solvent-extracted oil
- selective solvent-refined oil
- separator oil
- service DG oil
- service DM oil
- service DS oil
- service ML oil
- service MM oil
- service MS oil
- shafting oil
- shale oil
- Sherwood oil
- short oil
- shrinked oil
- skunk oil
- slightly gas-cut oil
- sludge oil
- slurry oil
- slush oil
- slushing oil
- solar oil
- solid oil
- solidified oil
- soluble oil
- sorbed oil
- sour oil
- spindle oil
- steam-distillable oil
- steam-refined oil
- stock-tank oil
- stock-tank oil in place
- stoker's oil
- stone oil
- stove oil
- straight mineral oil
- straw oil
- stripped oil
- stripping oil
- subzero oil
- sulfonated oil
- sulfur-bearing oil
- sulfurous oil
- summer oil
- surplus oil
- sweat oil
- sweet oil
- switch oil
- tank oil
- tanker specification crude oil
- tar oil
- tarry oil
- tertiary oil
- thin oil
- thinned oil
- topped oil
- torch oil
- tractor oil
- transformer oil
- trapped oil
- trimming oil
- trolly oil
- turkey-red oil
- undiluted engine oil
- univis oil
- unrecovered oil
- unrefinable oil
- unrefinable crude oil
- unstripped oil
- untreated oil
- vaporizing oil
- vulcan oil
- washed blue oil
- waste oil
- water-cut oil
- watered oil
- watery oil
- wax oil
- wet oil
- white oil
- wild oil
- winter oil
- wirerope oil* * *• нефть• нефтяной -
20 kit
1) комплект; набор2) оснастка || оснащать•- computer/electronic services tool kit
- distribution kit
- head-cleaning kit
- Java development kit
- memory kit
- microcomputer kit
- microcomputer development kit
- microcomputer interfacing kit
- microprocessor kit
- modular kit
- prototyping kit
- software development kit
- tool kit
- upgrade kit
- 1
- 2
См. также в других словарях:
Bubble memory — Computer memory types Volatile RAM DRAM (e.g., DDR SDRAM) SRAM In development T RAM Z RAM TTRAM Historical Delay line memory Selectron tube Williams tube … Wikipedia
Bubble Bobble — Infobox VG title = Bubble Bobble caption = Promotional USA flyer for the original arcade iteration of Bubble Bobble developer = Taito publisher = Taito and Romstar designer = Fukio Mitsuji release = 1986 genre = Platform game modes = Up to 2… … Wikipedia
Bubble Bobble Part 2 — Infobox VG title = Bubble Bobble Part 2 developer = Taito publisher = Taito America Corp. release = June 30, 1993 [ [http://www.rottentomatoes.com/g/nintendo/bubble bobble part 2/overview.php RottenTomatoes.com review] ] genre = Platform game… … Wikipedia
bubble — [[t]bʌ̱b(ə)l[/t]] bubbles, bubbling, bubbled 1) N COUNT Bubbles are small balls of air or gas in a liquid. Ink particles attach themselves to air bubbles and rise to the surface. ...a bubble of gas trapped under the surface. 2) N COUNT A bubble… … English dictionary
Development of Spore — Spore is a video game developed by Maxis and designed by Will Wright, released in September 2008. The game has drawn wide attention for its ability to simulate the development of a species on a galactic scope, using its innovation of user guided… … Wikipedia
Chinese property bubble — An empty corridor in the mostly vacant New South China Mall. The Chinese property bubble is an alleged ongoing real estate bubble in residential and/or commercial real estate in the People s Republic of China. The phenomenon has seen average… … Wikipedia
Irish property bubble of 2000s — Current situation Newspaper articles have provided anecdotal evidence of declining valuations with respect to the guide prices, and the agreed prices for Irish Residential property, since October 2006. This phenomenon was officially vindicated by … Wikipedia
research and development — Introduction abbreviation R and D, or R & D, in industry, two intimately related processes by which new products and new forms of old products are brought into being through technological innovation. Introduction and definitions … Universalium
Corona (software development kit) — Corona SDK Developer(s) Ansca Mobile Stable release 1.1 / 5 February 2009 Operating s … Wikipedia
Coarse bubble diffusers — PVC MaxAir coarse bubble diffuser in concrete basin. Courtesy of Environmental Dynamics Inc. Coarse bubble diffusers are a pollution control technology used to aerate and or mix wastewater for sewage treatment. They produce 1/4 to 1/2 inch… … Wikipedia
Chinese stock bubble of 2007 — The Chinese Correction (simplified Chinese: 中国校正; traditional Chinese: 中國校正; pinyin: Zhōngguó xiàozhèng) was the global stock market plunge of February 27, 2007 which wiped out hundreds of billions of market value.[1] After rumors that… … Wikipedia