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Fukushima nuclear disaster | contaminated water discharge radioactive water reported early april .frozen soil barrier constructed attempt prevent contamination seeping groundwater melteddown nuclear fuel july tepco revealed ice wall failed stop groundwater flowing mixing highly radioactive water inside wrecked reactor buildings adding ultimate goa... |
Fukushima nuclear disaster | december water purified required level remaining needed additional purification.however tritium cannot separated water.october total amount tritium water terabecquerels average tritium concentration .megabecquerels per liter.committee set japanese government concluded purified water released sea evaporated atmosphere. |
Fukushima nuclear disaster | committee calculated discharging water sea one year would cause radiation dose .microsieverts local people whereas evaporation would cause .microsieverts.comparison japanese people get microsieverts per year natural radiation.iaea considers dose calculation method appropriate. |
Fukushima nuclear disaster | iaea recommends decision water disposal must made urgently.despite negligible doses japanese committee concerned water disposal may cause reputational damage prefecture especially fishing industry tourism.february catholic bishops japan korea voiced opposition plan release water ocean citing opposition fisheries local ... |
Fukushima nuclear disaster | report indicated infants affected areas lifetime cancer risk would increase .predicted populations contaminated areas faced higher relative risk developing thyroid cancer females exposed infants higher relative risk leukemia males exposed infants higher relative risk breast cancer females exposed infants.onethird invol... |
Fukushima nuclear disaster | due low baseline rates thyroid cancer even large relative increase represents small absolute increase risks.example baseline lifetime risk thyroid cancer females threequarters one percent additional lifetime risk estimated assessment female infant exposed affected location onehalf one percent.the world nuclear associat... |
Fukushima nuclear disaster | however amount radioactivity less found naturally single banana.caesium caesium noted japanese whiting tokyo bay .concentration radiocesium japanese whiting one two orders magnitude higher sea water order magnitude lower sediment.still within food safety limits.in june tilman ruff copresident political advocacy group i... |
Fukushima nuclear disaster | main radioactive nuclides caesium caesium radioactive compounds dispersed much point landed time explosion difficult estimate understanding chemical behavior cesium.in february japan renewed export fish caught fukushimas nearshore zone.according prefecture officials seafood found radiation levels exceeding japan safety... |
Fukushima nuclear disaster | thyroid screening program world health organization stated thyroid ultrasound screening program due screening effect likely lead increase recorded thyroid cases due early detection nonsymptomatic disease cases.overwhelming majority thyroid growths benign growths never cause symptoms illness death even nothing ever done... |
Fukushima nuclear disaster | ultrasonographic detectable thyroid nodules cysts extremely common found frequency various studies..nodules larger .mm .andor cysts larger . |
Fukushima nuclear disaster | mm .underwent investigation none thyroid cancer.fukushima medical university give number children diagnosed thyroid cancer december concluded unlikely cancers caused exposure nuclear power plant accident march .in october children fukushima prefecture described either diagnosed showing signs developing thyroid cancer.s... |
Fukushima nuclear disaster | end number increased children.however despite paper widely reported media undermining error according teams epidemiologists point tsudas remarks fatally wrong tsuda apples oranges comparison comparing fukushima surveys uses advanced ultrasound devices detect otherwise unnoticeable thyroid growths data traditional nonad... |
Fukushima nuclear disaster | ohira et al.found duration accident thyroid examination associated thyroid cancer prevalence.significant associations individual external doses prevalence thyroid cancer.external radiation dose associated thyroid cancer prevalence among fukushima children within first years nuclear accident.a publication yamashita et a... |
Fukushima nuclear disaster | noted mean age patients time accident – years cases found children ages – would susceptible.yamashita et al.thus conclude case individual prognosis cannot accurately determined time fnac present.therefore urgent search intraoperative postoperative prognostic factors also predictive prognostic factors fnacpreoperative s... |
Fukushima nuclear disaster | million observed person years subject additional radiation exposure due nuclear accidents.authors concluded significant association external effective doserate thyroid cancer detection rate exists detection rate ratio drr per μsvh .... restricting analysis municipalities received less μsvh represent total cancer cases ... |
Fukushima nuclear disaster | .. average radiation doserates municipalities fukushima prefecture june corresponding thyroid cancer detection rates period october march show statistically significant relationships.corroborates previous studies providing evidence causal relation nuclear accidents subsequent occurrence thyroid cancer.as research corre... |
Fukushima nuclear disaster | updated models dose rates evacuees assessed prefectures used response conclusions yamamoto et al..authors concluded remains statistically detectable evidence increased thyroid cancer diagnosis due radiation.study toki et al.found similar conclusions yamamoto et al. |
Fukushima nuclear disaster | although unlike yamamoto et al.study toki et al.focus results incorporation screening effect.ohba et al.ohira et al. |
Fukushima nuclear disaster | toki et al.concluded research necessary understanding doseresponse relationship prevalence incident cancers.thyroid cancer one survivable cancers approximate survival rate first diagnosis.rate increases nearly survival rate caught early.cancer may spread another part body however survivors need take hormonal drugs life... |
Fukushima nuclear disaster | chernobyl comparison radiation deaths chernobyl also statistically undetectable..ukrainian cleanup workers included year study former soviet clean workers developed leukemia although cases resulted accident.data chernobyl showed steady sharp increase thyroid cancer rates following disaster whether data directly compare... |
Fukushima nuclear disaster | excess children adolescent cases thyroid cancer observed.nine died survival rate.effects evacuees former soviet union many patients negligible radioactive exposure chernobyl disaster displayed extreme anxiety radiation exposure.developed many psychosomatic problems including radiophobia along increase fatalistic alcoho... |
Fukushima nuclear disaster | life expectancy evacuees dropped years – cancer depression alcoholism suicide.relocation easy stress big.must track problems also treat them.otherwise people feel guinea pigs research.a survey iitate local government obtained responses approximately evacuees within evacuation zone.survey showed many residents experienc... |
Fukushima nuclear disaster | sixty percent respondents stated health health families deteriorated evacuating .reported feeling irritated compared disaster.summarizing responses questions related evacuees current family status onethird surveyed families live apart children .live away family members including elderly parents lived disaster.survey al... |
Fukushima nuclear disaster | total .reported lack sleep .reported smoking drinking evacuated.stress often manifests physical ailments including behavioral changes poor dietary choices lack exercise sleep deprivation.survivors including lost homes villages family members found likely face mental health physical challenges.much stress came lack info... |
Fukushima nuclear disaster | resulting outcomes included depressive symptoms anxiety sleep disturbance social functioning social isolation admission rates suicide rates cerebral structure changes radiation impacting food safety maternal anxiety lowered maternal confidence.in risk analysis relying metric potential months life lost determined unlike... |
Fukushima nuclear disaster | microcuries caesium detected per liter groundwater sampled monitoring well.dust particles gathered km reactors included microscopic nodules melted core samples encased cesium.decades exponential decline ocean cesium weapons testing fallout radioactive isotopes cesium sea japan increased accident .mbql .mbql still risin... |
Fukushima nuclear disaster | insurance according reinsurer munich private insurance industry significantly affected disaster.swiss similarly stated coverage nuclear facilities japan excludes earthquake shock fire following earthquake tsunami physical damage liability.swiss believes incident fukushima nuclear power plant unlikely result significant... |
Fukushima nuclear disaster | trillion yen billion nearly double estimate.in march japanese court ruled negligence japanese government led fukushima disaster failing use regulatory powers force tepco take preventive measures.maebashi district court near tokyo awarded ¥ million us people forced flee homes following accident.september sendai high cou... |
Fukushima nuclear disaster | authority restart others scheduled maintenance throughout year given local governments decided reopening them.according japan times disaster changed national debate energy policy almost overnight.shattering governments longpitched safety myth nuclear power crisis dramatically raised public awareness energy use sparked ... |
Fukushima nuclear disaster | reuters said may serve trump card nuclear lobby providing evidence possible correctly designed operated nuclear facility withstand cataclysm.the loss countrys generating capacity led much greater reliance liquified natural gas coal.unusual conservation measures undertaken.immediate aftermath nine prefectures served tep... |
Fukushima nuclear disaster | one estimate even including disaster years life would lost japan used coal gas plants instead nuclear.many political activists called phaseout nuclear power japan including amory lovins claimed japan poor fuels richest major industrial countries renewable energy meet entire longterm energy needs energyefficient japan l... |
Fukushima nuclear disaster | gw agricultural residue .gw.desertec foundation explored possibility utilizing concentrated solar power region.in contrast others said zero mortality rate fukushima incident confirms opinion nuclear fission viable option available replace fossil fuels.journalist george monbiot wrote fukushima made stop worrying love nu... |
Fukushima nuclear disaster | support technology.continued crappy old plant inadequate safety features hit monster earthquake vast tsunami.electricity supply failed knocking cooling system.reactors began explode melt down.disaster exposed familiar legacy poor design cornercutting. |
Fukushima nuclear disaster | yet far know one yet received lethal dose radiation.responses monbiot noted false calculation nuclear powered electricity needed work economically solve horrific waste decommissioning proliferationsecurity pitfalls ... along human safety health indeed human psychology issues.in september mycle schneider said disaster u... |
Fukushima nuclear disaster | brook described australian greens political party sa branch australian youth climate coalition sad increasingly irrelevant expressed opposition nuclear industrial development.as september japan planned build pilot offshore floating wind farm six mw turbines fukushima coast.first became operational november .evaluation ... |
Fukushima nuclear disaster | mw helped government scheme promote renewable energy.canadian solar received financing plans build factory japan capacity mw scheduled begin production .as september los angeles times reported prime minister yoshihiko noda acknowledged vast majority japanese support zero option nuclear power prime minister noda japanes... |
Fukushima nuclear disaster | comment came junichiro koizumi chose abe succeed premier made recent statement urge government take stance using nuclear power.survey local mayors yomiuri shimbun newspaper january found cities hosting nuclear plants would agree restarting reactors provided government could guarantee safety.people marched june tokyo re... |
Fukushima nuclear disaster | plans additional coal stations next decade biggest planned coal power expansion developed nation.new national energy plan would coal provide japans electricity presents abandoning previous goal reducing coals share .coal revival seen alarming implications air pollution japans ability meet pledges cut greenhouse gases .... |
Fukushima nuclear disaster | onagawa nuclear power plant closer epicenter march earthquake tsunami sea wall meters ft tall successfully withstood tsunami preventing serious damage radioactivity releases.nuclear power station operators around world began install passive autocatalytic hydrogen recombiners pars require electricity operate.pars work m... |
Fukushima nuclear disaster | another change harden location backup diesel generator rooms watertight blastresistant doors heat sinks similar used nuclear submarines.oldest operating nuclear power station world beznau operating since notstand hardened building designed support systems independently hours event earthquake severe flooding.system buil... |
Fukushima nuclear disaster | fukushima disaster illustrated robots lacked sufficient dexterity robustness perform critical tasks.response shortcoming series competitions hosted darpa accelerate development humanoid robots could supplement relief efforts.eventually wide variety specially designed robots employed leading robotics boom region early t... |
Fukushima nuclear disaster | public anger emerged many saw official campaign play scope accident potential health risks.japans mainstream media also wide public mistrust adhering closely governments downplaying accident especially first weeks months accident.in many cases japanese governments reaction judged less adequate many japan especially liv... |
Fukushima nuclear disaster | government also sought address lack education effects radiation extent average person exposed.previously proponent building reactors prime minister naoto kan took increasingly antinuclear stance following disaster.may ordered aging hamaoka nuclear power plant closed earthquake tsunami concerns said would freeze buildin... |
Fukushima nuclear disaster | chiaki takahashi japans foreign minister criticized foreign media reports excessive.added could understand concerns foreign countries recent developments nuclear plant including radioactive contamination seawater.due frustration tepco japanese government providing differing confusing times contradictory information cri... |
Fukushima nuclear disaster | main finding mission reported iaea ministerial conference month risks associated tsunamis several sites japan underestimated.in september iaea director general yukiya amano said japanese nuclear disaster caused deep public anxiety throughout world damaged confidence nuclear power.following disaster reported economist i... |
Fukushima nuclear disaster | far however government earmarked one power station closure – aging plant fessenheim german border – prompted question governments commitment hollandes promise.industry minister arnaud montebourg record saying fessenheim nuclear power station close.visit china december reassured audience nuclear energy sector future wou... |
Fukushima nuclear disaster | initial plan increase nuclear contribution percent electricity escalating program that.renewable energy supplies percent chinas electricity hydroelectricity.china plans triple nuclear energy output triple .new nuclear projects proceeding countries.kpmg reports new nuclear facilities planned proposed completion .china h... |
Fukushima nuclear disaster | conservative government united kingdom planning major nuclear expansion despite public objection.russia.india also pressing ahead large nuclear program south korea.indian vice president hamid ansari said nuclear energy option expanding indias energy supplies prime minister modi announced india intended build nuclear re... |
Fukushima nuclear disaster | accomplished incorporating specially designed additives standard fuel pellets replacing altering fuel cladding order reduce corrosion decrease wear reduce hydrogen generation accident conditions.research still ongoing march edwin i. hatch nuclear power plant near baxley georgia implemented “ironclad” “armor” fecral coa... |
Fukushima nuclear disaster | september court found three men guilty.naiic fukushima nuclear accident independent investigation commission naiic first independent investigation commission national diet year history japans constitutional government.fukushima cannot regarded natural disaster naiic panels chairman tokyo university professor emeritus k... |
Fukushima nuclear disaster | effectively betrayed nations right safe nuclear accidents.stated disaster made japan since manifestation certain cultural traits saying “its fundamental causes found ingrained conventions japanese culture reflexive obedience reluctance question authority devotion ‘sticking program’ groupism insularity.”the commission r... |
Fukushima nuclear disaster | released final page investigation report july .the panels report faulted inadequate legal system nuclear crisis management crisiscommand disarray caused government tepco possible excess meddling part prime ministers office crisis early stage.panel concluded culture complacency nuclear safety poor crisis management led ... |
Fukushima nuclear disaster | retrieved september .othercaldicott helen ed.crisis without end medical ecological consequences fukushima nuclear catastrophe.symposium new york academy medicine march – .new press .isbn ebooknadesan majia . |
Fukushima nuclear disaster | fukushima privatization risk.london palgrave .isbn legacies fukushima.university pennsylvania press.. |
Fukushima nuclear disaster | isbn .external links investigation fukushima nuclear accident independent investigation commission report website englishinvestigation committee accidents fukushima nuclear power station tokyo electric power companythe radioactive waters fukushimalessons learned fukushima daiichi – report movieinternational atomic ener... |
FPD-Link | decemberfree open standard connecting output graphics processing unit laptop tablet computer flat panel display lcd television display panels timing controller.laptops tablet computers flatpanel monitors tvs use interface internally.fpdlink lvds fpdlink first largescale application lowvoltage differential signaling lvd... |
FPD-Link | automotive applications automotive applications fpdlink commonly used navigation systems incar entertainment backup cameras well advanced driverassistance systems.the automotive environment known one harshest electronic equipment due inherent extreme temperatures electrical transients.order satisfy stringent reliabilit... |
FPD-Link | however openldi lost videotransfer standards competition digital visual interface dvi early twentyfirst century result standalone lcd panels using dvi receive video desktop computer.fpdlink ii fpdlink ii introduced improved version fpdlink.national semiconductor designed specifically automotive infotainment camera inte... |
FPD-Link | example bit color application uses one twisted pair instead twisted pairs used fpdlink.there additional benefits fpdlink ii.example car makers appreciate increased cable length even reduced cable cost.embedded clock feature eliminates timing skew clock data signals.limiting factor cables separate clock data pairs pairs... |
FPD-Link | signal dc balanced application use ac coupling eliminates ground current problem data source destination.critical automotive applications potential large transient currents damage sensitive electronic equipment.the higher resolution applications required fpdlink ii increase data throughput.started gbits data throughput... |
FPD-Link | changing lvds current mode logic cml newest fpdlink ii chipsets able reliably send high bitrate video streams cables longer m. fpdlink iii fpdlink iii introduced .improving fpdlink ii fpdlink iiis major feature embedding bidirectional communication channel differential pair.bidirectional channel transfers control signa... |
FPD-Link | ic master read write slaves side fpdlink iii chipset effectively transparent ic master slaves communications.example enables infotainment head units control configure displays image processing units control configure cameras using twisted pair cable data transmission.the digital content protection llc approved fpdlink ... |
FPD-Link | additional benefit using cml coaxcable drive capability.cml technology works well driving single conductor coax cables.since coax cables good controlling impedance noise reduce need differential signaling better tolerates impedance discontinuities noise interference.another added benefit fpdlink iii adaptive equalizati... |
OS X Mavericks | adaptive equalizer sense poor signal restore original integrity.feature useful every application cable vary length operating temperature humidity variables affect isi resulting lowpass filter effect cable.see also display controller – ic produces signaldisplay serial interface dsiembedded displayport – industry interna... |
OS X Mavericks | keynote october apple announced official release .mac app store would available immediately unlike previous versions os x .would available charge users running snow leopard .. later.on october apple offered free upgrades life os x iwork.system requirements os x mavericks run mac run os x mountain lion mountain lion gb ... |
OS X Mavericks | additionally airplay compatible displays apple tv used external display.mission control updated organize switch desktop workspaces independently multiple displays.os x mavericks introduced app nap sleeps apps currently visible.app running mavericks eligible feature default.compressed memory virtual memory compression s... |
OS X Mavericks | increase performance crossplatform compatibility.some skeuomorphs leather texture calendar legal pad theme notes booklike appearance contacts removed ui.icloud keychain stores users usernames passwords wifi passwords allow user fill information forms needed.the system native linkedin sharing integration.ipotb internet ... |
OS X Mavericks | app also allows user purchase new content ibooks store night mode make easier read dark environments.the new maps application allows user functionality ios maps.the calendar app enhancements able add facebook events estimate travel time event.the safari browser significantly enhanced javascript performance apple claims... |
OS X Mavericks | applications found mavericks airport utilityapp storearchive utilityaudio midi setupautomatorbluetooth file exchangeboot camp assistantcalculatorchesscolorsync utilityconsolecontactsdictionarydigital color meterdisk utilitydvd playerfacetimefont bookgame centergarageband may preinstalledgrabgrapherimovie may preinstall... |
Oracle NoSQL Database | reception os x mavericks received mixed reviews.one complaint apple removed local sync services forces users get icloud sync ios devices desktop os.however feature since returned .. itunes .updates.the verge stated os x mavericks “a gentle evolution mac operating system”.release history see also aqua user interfacemaco... |
Oracle NoSQL Database | oandc table similar relational table additional properties including provisioned write units read units storage capacity.users provision throughput storage capacity table based anticipated workloads.oandc resources allocated scaled accordingly meet workload requirements.users billed hourly based capacity provisioned.oa... |
Oracle NoSQL Database | application manipulate insert delete update read single row transaction.application also perform iterative nontransactional scan rows database.licensing oracle corporation distributes oracle nosql database three editionsoracle nosql database server community edition apache license version .oracle nosql enterprise editi... |
Oracle NoSQL Database | license used community enterprise editions.main features architecture oracle nosql database built upon oracle berkeley db java edition highavailability storage engine.adds services provide distributed highly available keyvalue store suited largevolume latencysensitive applications.sharding replication oracle nosql data... |
Oracle NoSQL Database | provides simple keyvalue paradigm application developer.major key record hashed identify shard record belongs to.oracle nosql database designed support changing number shards dynamically response availability additional hardware.number shards changes keyvalue pairs redistributed across new set shards dynamically withou... |
Oracle NoSQL Database | replicas kept date using streaming replication.change master node committed locally disk also propagated replicas.high availability faulttolerance oracle nosql database provides singlemaster multireplica database replication.transactional data delivered replica nodes flexible durability policies per transaction.event m... |
Oracle NoSQL Database | soon failed node repaired rejoins shard updated becomes available processing read requests.thus oracle nosql database applications tolerate failures nodes within shard also multiple failures nodes distinct shards.proper placement masters replicas server hardware racks interconnect switches oracle nosql database intende... |
Oracle NoSQL Database | service supports functionality ability configure start stop monitor storage node without requiring configuration files shell scripts explicit database operations.allows java management extensions jmx simple network management protocol snmp agents available monitoring.allows management clients poll information status pe... |
Oracle NoSQL Database | oracle nosql database includes topology planning feature administrator modify configuration nosql database database online.administrator canincrease data distribution increasing number shards cluster increases write throughput.increase replication factor assigning additional replication nodes shard increases read throu... |
Oracle NoSQL Database | secondary zones used provide low latency read access data distant location offload readonly workloads analytics report generation data exchange improved workload management.json data format oracle nosql database supports avro data serialization provides compact schemabased binary data format.schemas defined using json.... |
Oracle NoSQL Database | system knows capacity storage nodes configuration automatically allocates replication nodes intelligently.intended better load balancing better use system resources minimizing system impact event storage node failure.smart topology supports data centers ensuring full set replicas initially allocated data center.online ... |
Oracle NoSQL Database | particular writes configured performed synchronously replicas cp cap i.e.partition node failure causes system unavailable writes.replication performed asynchronously reads configured served replica ap cap i.e.system always available guarantee consistency.database features table data model release . |
Oracle NoSQL Database | introduced tabular data structure simplifies application data modeling leveraging existing schema design concepts.table model layered top distributed keyvalue structure inheriting advantages simplifying application design enabling seamless integration familiar sqlbased applications secondary index primary key based ind... |
Oracle NoSQL Database | intended decrease latency operations across mixed workloads objects varying sizes.acid compliant transaction oracle nosql database provides acid compliant transactions full create read update delete crud operations adjustable durability consistency transaction guarantees.sequence operations operate single atomic unit l... |
Oracle NoSQL Database | libraries include avro support developers serialize keyvalue records deserialize keyvalue records interchangeably c java applications.oracle restful services oracle nosql database supports oracle rest data services ords.allows customers build restbased application access data either oracle database ond.geojson supports... |
Oracle NoSQL Database | apache hadoop kvavroinputformat kvinputformat classes available read data ond natively hadoop mapreduce jobs.one use class read nosql database records oracle loader hadoop.oracle integration oracle big data sql hive oracle big data sql common sql access layer data stored hadoop hdfs hive ond.allows customers query orac... |
Oracle NoSQL Database | latest release also supports primitive complex data types oracle database oracle nosql database ee supports external table allows fetching oracle nosql data oracle database using sql statements select select count etc.nosql data exposed external tables one access data via standard jdbc drivers andor visualize enterpris... |
Oracle NoSQL Database | adapter enables fast access graph data stored ond via sparql queries.integration oracle coherence allows ond used cache oracle coherence applications allowing applications directly access cached data ond.enterprise security oracle nosql database ee supports osindependent clusterwide passwordbased user authentication or... |
Loran-C | – new featuresfull text search – elastic search.timetolive – efficient aging “expired” data – common iot requirement.sql query – declarative query language.predicate pushdown – ability process predicates big data sql nosql database nodes without passing data fails predicate improved performance scalability.importexport... |
Loran-C | discussions future loranc began several turnoff dates announced cancelled.canadian systems shut along lorancchayka stations shared russia.several chains remained active upgraded continued use.end navigation chains europe turned off.december united states also renewed discussion funding eloran system nist offered fund d... |
Loran-C | history lorana original loran proposed alfred lee loomis meeting u.s. armys microwave committee.army air corps interested concept aircraft navigation discussion returned requirement system offering accuracy mile .km range miles km maximum range great miles km highflying aircraft.microwave committee time organized would... |
Loran-C | extensive signalstrength measurements made mounting conventional radio receiver station wagon driving around eastern states.however custom receiver design associated cathoderay tube displays proved bigger problem.spite several efforts design around problem instability display prevented accurate measurements output shif... |
Loran-C | meeting also revealed project gee called almost identical systems similar performance range accuracy gee already completed basic development entering initial production making project superfluous.in response project team told army air force adopt gee instead behest british team realigned efforts provide longrange navig... |
Loran-C | lf loran two ways implement timing measurements needed hyperbolic navigation system pulse timing systems like gee loran phasetiming systems like decca navigator system.the former requires sharp pulses signal accuracy generally limited rapidly pulses turned function carrier frequency.ambiguity signal measurements valid ... |
Loran-C | demands navigation method used conjunction pick cell receiver within using phase measurements place receiver accurately within cell.numerous efforts made provide sort secondary lowaccuracy system could used phasecomparison system like decca order resolve ambiguity.among many methods directional broadcast system known p... |
Loran-C | could either used greatly increase accuracy loran alternately offer similar accuracy using much lower carrier frequencies thus greatly extend effective range.would require transmitter stations synchronized time phase much problem already solved decca engineers.the longrange option considerable interest coast guard set ... |
Loran-C | accuracy found feet miles km significant advance loran.ending muskox decided keep system running became known operation musk calf run group consisting united states air force royal canadian air force royal canadian navy uk royal corps signals.system ran september .this led another major test series time newlyformed uni... |
Loran-C | unfortunately stations proved poorly sited radio transmission permafrost much shorter expected synchronization signals stations using ground waves proved impossible.tests also showed system extremely difficult use practice easy operator select wrong sections waveforms display leading significant realworld inaccuracy.cy... |
Loran-C | spite great efforts whyn could never made work abandoned.cyclan operated sending lf loranlike signals two frequencies lf lorans khz khz.associated equipment would look rising amplitude indicated start signal pulse use sampling gates extract carrier phase.using two receivers solved problem misaligning pulses phases woul... |
Loran-C | especially good news khz frequency interfering existing broadcasts moved khz testing.through period issue radio spectrum use becoming major concern led international efforts decide frequency band suitable longrange navigation.process eventually settled band khz.cyclan appeared suggest accuracy even lower frequencies pr... |
Loran-C | resulting system known cytac.to solve complexity problem new circuit developed properly time sampling signal.consisted circuit extract envelope pulse another extract derivative envelope finally another subtracted derivative envelope.result final operation would become negative specific stable part rising edge pulse zer... |
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