Uspešnost obrtno-zborničnega sistema v Sloveniji

OpenAIRE

Štrekelj, Andreja

2016-01-01

Organizacije morajo zaradi vse večje konkurence in prostega nastopa na trgu stremeti k čim večji tržni prednosti oziroma prepoznavnosti in uspešnosti, ne glede na področje poslovanja. To velja tudi za neprofitne organizacije, ki svojemu neprofitnemu poslanstvu profitno sledijo in ga neprofitno uresničujejo. Med neprofitne organizacije spada tudi Obrtno-podjetniška zbornica Slovenije, ki v slovenskem prostoru deluje že 47 let in je nastala na podlagi skupnih interesov takratnih obrtnikov zarad...

ZADOVOLJSTVO ZAPOSLENIH NA NAJEMNEM BENCINSKEM SERVISU PETROL D.D.

OpenAIRE

Ravnihar, Petra

2010-01-01

Namen diplomske naloge je ugotoviti zadovoljstvo zaposlenih na najemnem bencinskem servisu Šenčur. Za celovit prikaz je predstavljeno podjetje Petrol d. d. kot celota, njihova vizija za prihodnost ter delovanje posameznih franšiz, kamor spada tudi najemni servis Šenčur. Zaposleni lahko predstavljajo za podjetja konkurenčno prednost. Upravljanje človeških virov in zavedanje o potrebi po tem lahko pomeni odločilno prednost določenega podjetja. V današnjem času zgolj upravljanje organizacij n...

Načrtovanje in optimizacija brezžičnega merilnega sistema z Wi-Fi modulom

OpenAIRE

RAŽMAN, ROK

2015-01-01

Namen tega dela je opisati načrtovanje in optimizacijo delovanja brezžičnega merilnega sistema, ki zajema mikrokrmnilnik, Wi-Fi modul in napajalno vezje, in je priključen na ciljni senzor. Umeščen bo v zelo omejen prostor in to predstavlja precejšno težavo z vidika načrtovanja. Vir napajanja je omrežna izmenična napetost, kar pomeni, da mora sistem vključevati majhen, a dovolj zmogljiv AC-DC pretvornik. Največji porabnik toka v sistemu je Wi-Fi modul. Vse omejitve morajo biti upoštevane in vs...

DUŠA, NJENE (STRAN)POTI, DRUŽBENO NADZORSTVO IN KAPITALIZEM

OpenAIRE

Kanduč, Zoran

2017-01-01

Tekst uvodoma osvetli razmerje med telesom in „dušo“, pravzaprav duševnimi pojavi, saj te metafizične entitete ni niti v objektivnem niti v subjektivnem svetu – za razliko od konkretnega, nenehno spreminjajočega se toka zavestnih izkušenj (ki so za posameznika nekaj najbolj realnega, čeprav še vedno ne vemo, kako nastanejo in čemu služijo) –, za nameček pa je tudi ni mogoče utemeljiti ali pojasniti z evolucijsko teorijo. Duša (v svoji enoviti in nesmrtni formi), ki jo Bog podari le človeški „...

Electrical Equipment of Electrical Stations and Substations,

Science.gov (United States)

1979-10-25

flocronthoro ’roka "rNUSPONUS reuepa’rop Tpexzaamor TOKA 6C. so, iso ynpomxeuuoe 63aeg (O#cms1poHM reHepaTop C ObiBeleHnbumH WeCTblo KoimaUU itA3...currents during short circuit on the terminals/grippers: the turbogenerators 12): .I1’ 1.5; the hydraulic generators 0a:I. ,-0 (.PA >3) ISO ---01...330TATl 111-31500/110 BC- 17,5 (10,5) 6800 5600 7600 123 397 Bll - 10,5 (17) C11 - 6.3 (6) TJATI 11-000/I10 - 8583 5275 7700 129 474 TLI, 11’--I.U500/I 1o

Benchmarking and testing the “Sea Level Equation”

DEFF Research Database (Denmark)

Spada, G.; Barletta, Valentina Roberta; Klemann, V.

2012-01-01

through which the methods may be validated. Following the example of the mantle con-vection community and our recent successful Benchmark for Post Glacial Rebound codes (Spada et al., 2011), here we present the results of a benchmark study of independently developed codes de-signed to solve the SLE....... This study has taken place within a collaboration facilitated through the Eu-ropean Cooperation in Science and Technology (COST) Action ES0701. The tests involve predictions of past and current sea level variations, and 3D deformations of the Earth surface. In spite of the significant differences...

Građevinski otpad - od nastanka do korištenja

OpenAIRE

Kontak, Jakov

2016-01-01

U ovom završnom radu govori se o građevinskom otpadu te o gospodarenju i ukidanju statusa otpada. Uvodni dio rada opisuje građevni otpad općenito i njegovu podjelu prema vrsti i mjestu nastanka. Opisuje se otpad od rušenja, opasni otpad, neopasni otpad, inertni otpad te otpad koji sadrži azbest. Navedeni su postupci pomoću kojih se određuje u koji grupu spada otpad i njegovo klasificiranje prema ključnim brojevima te su nabrojane vrste otpada koje spadaju u građevinski otpad i ...

Izvedljivost testa stoje na eni nogi na pritiskovni plošči pri dejavnih starejših

OpenAIRE

Podvratnik, Jerica

2018-01-01

Uvod: Ravnotežje je potrebno za vzdrževanje stabilnega položaja med gibanjem, pri prehodih v različne položaje in med izvajanjem vsakodnevnih dejavnosti. Med teste za ocenjevanje sistemov ravnotežja spada modificiran test senzorične interakcije. S postopkom stabilometrije se s pomočjo pritiskovne plošče zabeleži gibanje središča pritiska. Za uporabno meritev je potrebno, da preiskovanec vzdržuje položaj vsaj 30 sekund. Namen: Z meritvami časa in gibanja središča pritiska pri testu stoje na en...

Passioni di croce e passioni di spada: Nicolas Malebranche e Niccolò Gaetani

Directory of Open Access Journals (Sweden)

Alessandro Stile

2017-12-01

Full Text Available Passions of Cross and Passions of Sword: Nicolas Malebranche and Niccolò Gaetani. The fundamental value attributed to the passions is examined in a comparison between Nicolas Malebranche and an exponent of Neapolitan culture of the early eighteenth century, Niccolò Gaetani dell’Aquila d’Aragona. On the one hand a philosophical vision emerges, at the very limits of orthodoxy; on the other hand it is stressed the use of the passions as a balancing tool for civil order.

Toka Boot/The Big Jam: Making Music in Rural East Timor

Science.gov (United States)

Howell, Gillian; Dunphy, Kim

2012-01-01

This article discusses a community music project in rural East Timor. Australian musician Gillian Howell lived for three months in the isolated town of Lospalos as an Asialink artist-in-residence, where she worked with local community members and visiting Australian musicians to share music and ideas, and to communicate across cultures. Three…

NASILJE V DRUŽINI

OpenAIRE

Marinčič, Maja

2014-01-01

Z nasiljem se dandanes človek srečuje na vseh področjih svojega življenja. Med različne vrste nasilja, ki jih poznamo spada tudi nasilje v družini. Diplomska naloga raziskuje področje nasilja v družini, saj predstavlja pereč problem današnje družbe. To pa zato ker je prisotno v vseh družbenih slojih, kulturah in religijah. Zmotno je mišljenje, da se nasilje dogaja le v revnih in neizobraženih družinah. Predstavili in opisali smo različne oblike nasilja, te pa se pogosto med seboj tudi dopolnj...

Obveznopravni odnosi u prijevozu živih životinja morem

Directory of Open Access Journals (Sweden)

Ivo Grabovac

2006-08-01

Full Text Available Prijevoz živih životinja morem spada u tzv. posebne prijevoze. Žive životinje su tijekom prijevoza izložene posebnim, samo njima kao živim bićima svojstvenim rizicima. Mjerodavne međunarodne konvencije i domaći propisi imaju neka posebna rješenja u prijevozu ove vrste robe, kojima je zapravo svrha omogućiti pogodniji pravni položaj prijevoznika. Autor u ovom radu ističe određene osobitosti u sadržaju prava i obveza ugovaratelja iz prijevoza živih životinja morem, a na temelju međunarodnih konvencija i nacionalnih propisa, osobito Pomorskog zakonika Republike Hrvatske.

Učenje in razvoj nogometne igre v napadu

OpenAIRE

Gornik, Aljaž

2018-01-01

Nogomet je moštvena športna igra, ki spada v skupino sestavljenih športov. To pomeni, da igra nogometa vsebuje večje število tehničnih in taktičnih elementov z žogo in brez nje. Več kot jih bo posamezni igralec obvladal, boljši bo in lažje bo dosegel medsebojno usklajenost z drugimi soigralci. Večja usklajenost med soigralci pa ustvarja podlago za večje možnosti rezultatskega uspeha moštva. Poleg tehnično-taktične priprave na rezultat v nogometu vplivata tudi kondicijska in psihološka priprav...

SPADAS: a high-speed 3D single-photon camera for advanced driver assistance systems

Science.gov (United States)

Bronzi, D.; Zou, Y.; Bellisai, S.; Villa, F.; Tisa, S.; Tosi, A.; Zappa, F.

2015-02-01

Advanced Driver Assistance Systems (ADAS) are the most advanced technologies to fight road accidents. Within ADAS, an important role is played by radar- and lidar-based sensors, which are mostly employed for collision avoidance and adaptive cruise control. Nonetheless, they have a narrow field-of-view and a limited ability to detect and differentiate objects. Standard camera-based technologies (e.g. stereovision) could balance these weaknesses, but they are currently not able to fulfill all automotive requirements (distance range, accuracy, acquisition speed, and frame-rate). To this purpose, we developed an automotive-oriented CMOS single-photon camera for optical 3D ranging based on indirect time-of-flight (iTOF) measurements. Imagers based on Single-photon avalanche diode (SPAD) arrays offer higher sensitivity with respect to CCD/CMOS rangefinders, have inherent better time resolution, higher accuracy and better linearity. Moreover, iTOF requires neither high bandwidth electronics nor short-pulsed lasers, hence allowing the development of cost-effective systems. The CMOS SPAD sensor is based on 64 × 32 pixels, each able to process both 2D intensity-data and 3D depth-ranging information, with background suppression. Pixel-level memories allow fully parallel imaging and prevents motion artefacts (skew, wobble, motion blur) and partial exposure effects, which otherwise would hinder the detection of fast moving objects. The camera is housed in an aluminum case supporting a 12 mm F/1.4 C-mount imaging lens, with a 40°×20° field-of-view. The whole system is very rugged and compact and a perfect solution for vehicle's cockpit, with dimensions of 80 mm × 45 mm × 70 mm, and less that 1 W consumption. To provide the required optical power (1.5 W, eye safe) and to allow fast (up to 25 MHz) modulation of the active illumination, we developed a modular laser source, based on five laser driver cards, with three 808 nm lasers each. We present the full characterization of the 3D automotive system, operated both at night and during daytime, in both indoor and outdoor, in real traffic, scenario. The achieved long-range (up to 45m), high dynamic-range (118 dB), highspeed (over 200 fps) 3D depth measurement, and high precision (better than 90 cm at 45 m), highlight the excellent performance of this CMOS SPAD camera for automotive applications.

A general-purpose pulse amplifier; Amplificateur d'impulsions universel; Universal'nyj usilitel' impul'sov; Amplificador de impulsos para uso general

Energy Technology Data Exchange (ETDEWEB)

Hansen, K B [Forsogsanlaeg Riso, Roskilde (Denmark)

1962-04-15

usilitelej''. Putem ispol'zovaniya odnogo osnovnogo usilitelya, no s razlichnymi skhemami obratnoj svyazi, primenenie ehtogo metoda daet vozmozhnost' poluchat' predvaritel'nye usiliteli i osnovnye usiliteli s nailuchshimi vozmozhnostyami preobrazovaniya impul'sov i v otnoshenii predstavlyayushchikh naibol'shij interes parametrov, takikh kak, naprimer, kharakteristika linejnosti, ustojchivosti i peregruzki. Tak kak ehtot metod trebuet ispol'zovaniya parallel'noj obratnoj svyazi, to on osobenno khorosho podkhodit dlya predvaritel'nykh usilitelej, tak kak bol'shaya chast' detektorov yavlyaetsya v to zhe samoe vremya generatorami toka. Opisyvaetsya usilitel', dejstvuyushchij v kachestve operatsionnogo usilitelya. Naibolee vazhnymi spetsifikatsiyami yavlyayutsya: usilenie v 90 dB ot postoyannogo toka - 10 kgts, padayushchee zatem priblizitel'no po 20 dB na dekadu do dostizheniya 15 mgts (usilenie v 30 dB). S ehtim usilitelem ispol'zuyutsya chetyre lampy. Dlya bol'shinstva operatsij preobrazovaniya impul'sov potrebnost' v stabilizirovannom istochnike ehlektroehnergii otpadaet, a ustojchivost' budet zaviset' isklyuchitel'no ot ustojchivosti ispol'zovannoj skhemy obratnoj svyazi. (author)

100-Mc counting system; Ensemble de comptage a 100 megacycles; Schetnaya sistema na 100 megatsiklov; Sistema contador de 100 megaciclos

Energy Technology Data Exchange (ETDEWEB)

Sugarman, R; Higinbotham, W A; Yonda, A H [Brookhaven National Laboratory, Upton, Long Island, NY (United States)

1962-04-15

vklyucheniya toka s tranzistorami i germanievymi tunnel'nymi diodami. Vse kriticheskie skhemy imeyut vremya narastaniya i razbros vremeni v razmere dvukh nanosekund i menee. K logicheskim ehlementam otnosyatsya ogranichitel' amplitudy impul'sov, diskriminator, mnogokanal'naya skhema sovpadenij, chetyrekhkratnyj raspredelitel' impul'sov i shkala na 8 delenij. Rasshivatel' pozvolyaetogranichitelyu ili vykhodu diskriminatora sozdavat' lyubye kombinatsii chetyrekh ehlementov. Kazhdyj ehlement predstavlyaet soboj otdel'nyj smennyj modul'. EHlementy vzaimosvyazany s kabelem na 50 om ne menee, chem s odnoj zamykayushchej skhemoj. Bol'shinstvo modul'nykh vkhodov i vykhodov sovmestimy, i diskriminator, naprimer, mozhet libo privodit' v dvizhenie skhemu sovpadenij, libo privodit'sya v dvizhenie po skheme sovpadenij s pomoshch'yu vklyuchayushchikh kabelej. Dlya obespecheniya raboty na bol'shoj skorosti, a takzhe khoroshej stabil'nosti po vremeni i temperature, tranzistory rabotayut na edinom zaryadnom usilenii libo v vide vklyucheniya toka, libo v linejnom vide kak rasprostranennyj usilitel'. Kazhdyj tunnel'nyj diod obespechivaet dopolnitel'noe vklyuchaemoe zaryadnoe usilenie v razmere ot 2 do 5 s takoj zhe stabil'nost'yu i polosno-propusknym ustrojstvom v kachestve tranzistorov. Kazhdyj modul' prednaznachen dlya ispol'zovaniya do postoyannoj skorosti scheta v razmere 100 megaimpul'sov v sekundu. Vysokie rabochie tsikly sistemy yavlyayutsya vozmozhnymi blagodarya vzaimosvyazyam postoyannogo toka i blagodarya ogranicheniyu dvojnoj linii zaderzhki s tsel'yu vosstanovleniya mezhdu impul'sami. Dlya skorostej scheta do 50 megatsiklov ne predpolagaetsya nikakoj poteri pri rabote sistemy. Bazisnyj diskriminator imeet chuvstvitel'nost', kotoruyu mozhno prisposobit' dlya 2-10 milliamper so sparennym vykhodom postoyannogo toka v razmere 10 milliamper pri potentsiale zemli. Vremya narastaniya i padeniya na vykhode sostavlyaet 1 nanosekundu; shirina impul'sa ustanavlivaetsya s pomoshch'yu kabelya

A double toe-to-hand transfer in a young girl

International Nuclear Information System (INIS)

Rahman, M.F.

2013-01-01

A 14 years old girl lost all the fingers of her right hand except the thumb in a Toka (fodder chopping machine) 4 months ago. The fingers had been amputated at the level of the metacarpophalangeal joint. A double toe transfer was done using the second and third toes of her right foot to reconstruct the second and third digits of her right hand using microvascular technique. Bones were fixed with K-wires, corresponding tendons and nerves were attached, the dorsalis pedis artery was anastamosed end-to-side to the radial artery and the vein was anastamosed to the cephalic vein. The patient recovered well. K-wires were removed at 6 weeks and physiotherapy was started. After 4 months, the patient was able to use the hand for normal hand function and could make a tripod pinch. (author)

Computation of the Spitzer function in stellarators and tokamaks with finite collisionality

Directory of Open Access Journals (Sweden)

Kernbichler Winfried

2015-01-01

Full Text Available The generalized Spitzer function, which determines the current drive efficiency in toka- maks and stellarators is modelled for finite plasma collisionality with help of the drift kinetic equation solver NEO-2 [1]. The effect of finite collisionality on the global ECCD efficiency in a tokamak is studied using results of the code NEO-2 as input to the ray tracing code TRAVIS [2]. As it is known [3], specific features of the generalized Spitzer function, which are absent in asymptotic (collisionless or highly collisional regimes result in current drive from a symmetric microwave spectrum with respect to parallel wave numbers. Due to this effect the direction of the current may become independent of the microwave beam launch angle in advanced ECCD scenarii (O2 and X3 where due to relatively low optical depth a significant amount of power is absorbed by trapped particles.

Two-dimensional selector type 2X3; Selecteur bidimensionnel type 2X3; Dvukhmernyj selektor tipa 2X3; Selector bidimensional tipo 2X3

Energy Technology Data Exchange (ETDEWEB)

Amram, Y [Centre d' Etudes Nucleaires de Saclay (France)

1962-04-15

la lecture: possibilite de lire un spectre de temps de vol dans une bande d'amplitude comprise entre deux limites quelconques. Une operation analogue peut etre effectuee simultanement pour quatre spectres d'amplitudes. (author) [Spanish] Se trata de un selector distinado al estudio de reacciones n, {gamma}, que contiene 2{sup 16} canales (1024 canales de tiempo x 64 canales de amplitud). Las caracteristicas (tiempo de llegada y amplitud) de cada suceso interesante son codificadas y se registran en una cinta magnetica de dieciseis pistas. Los datos contenidos en la cinta se pasan por partes a un bloque de explotacion de los resultados que contiene una memoria de 1024 canales; dicho bloque totaliza los sucesos que presenten las mismas caracteristicas dentro de limites de amplitud y duracion establecidos por el experimentador. Las caracteristicas generales del aparato son las siguientes. Seleccion de tiempo, 1024 canales de anchos comprendidos entre 0,1 y 6,4 {mu}s, agrupados en ocho zonas de interes de 128 canales; seleccion de amplitud, 64 canales de 0,25 a 1 V de ancho; tiempo muerto medio, 7 {mu}s; tiempo de resolucion del conjunto del aparato, < 20 {mu}s; acondicionamiento en la lectura: posibilidad de leer un espectro de tiempos de vuelo en una banda de amplitud comprendida entre dos limites cualesquiera. Se puede realizar una operacion analoga simultaneamente para 4 espectros de amplitudes. (author) [Russian] EHtot selektor, prednaznachennyj dlya izucheniya reaktsij n, {gamma} sostoit iz 2{sup 16} kanalov (1024 kanalov vremeni i 64 amplitudnykh kanala). KHarakteristiki (vremya poyavleniya i amplituda) kazhdogo interesuyushchego sobytiya registriruyutsya posle kodirovaniya na magnitoj lente s 16 dorozhkami. Obrabotka soderzhaniya magnitnoj lenty osushchestvlyaetsya po chastyam na bloke pol'zovaniya rezul'tatami, soderzhashchimi zapominayushchee ustrojstvo s 1024 kanalami, kotoroe obobshchaet sobytiya, imeyushchie odinakovye kharakteristiki v sfere amplituda-vremya

Radiation-pulse transmission via a long cable without a preamplifier and/or a pulse transformer; Transmission d'impulsions de rayonnement par cable long sans l'adjonction d'un preamplificateur ou d'un transformateur d'impulsions; Peredacha impul'snykh izluchenij no kabelyu na dal'nie rasstoyaniya bez predvaritel'nogo usileniya i/ili bez preobrazovaniya impul'sov; Transmision de impulsos por cables de gran longitud sin preamplificador y/o transformador de impulsos

Energy Technology Data Exchange (ETDEWEB)

Miwa, H; Tohyama, T [Kobe Kogyo Corporation, Okubo, Akashi, Hyogo (Japan)

1962-04-15

vkhodnym konturam malogo vkhodnogo kompleksnogo soprotivleniya, prikhoditsya neskol'ko peresmatrivat' ehti kontury. Rassmatrivayutsya i sravnivayutsya drug s drugom tri vkhodnykh kontura, a imenno (No. 1) po vidu napryazheniya, (No. 1) po vidu napryazheniya i toka i (No. 3) po vidu toka. Kontur No. 1 ochen' pokhozh na obychnyj kontur s ehlektronnymi lampami. Byl postroen chuvstvitel'nyj sledyashchij mekhanizm izlucheniya al'fa-luchej s katodnoj nagruzkoj i so smeshcheniem obratnoj svyazi; on byl uspeshno ispol'zovan bez ushcherba dlya ustojchivosti postoyannogo toka v kachestve kontura s bol'shim vkhodnym kompleksnym soprotivleniem svyshe 10 megaomov. Bol'shaya chast' radiatsionnykh detektorov mozhet rassmatrivat'sya kak generatory toka. Takim obrazom, vykhodnye signaly detektorov mogut napravlyat'sya v usilitel' toka s malym vkhodnym kompleksnym soprotivleniem. EHto ustrojstvo sootvetstvuet vidu No. 3, i ono daet velikolepnuyu amplitudu impul'sa, no vvidu bystrogo toka impul'sov i maloj vkhodnoj integriruyushchej konstanty vremeni verkhnij predel chastoty usilitelya dolzhen prevyshat' 10 megagerts. Ustrojstvo No. 2 yavlyaetsya kombinatsiej vidov No. 1 i No. 3. Signaly detektora napravlyayutsya cherez soprotivlenie priblizitel'no v 100 kiloomov v usilitel' toka s malym vkhodnym kompleksnym soprotivleniem. Soprotivlenie izmenyaet vkhodyashchuyu integriruyushchuyu konstantu vremeni do nuzhnoj velichiny i snizhaet trebovaniya, pred{sup y}avlyaemye k verkhnemu predelu chastoty ehlektronnogo kontura priblizitel'no do 2 megagerts. Bolee togo, ehto ustrojstvo pozvolyaet sokhranit' proportsional'noe sootnoshenie mezhdu amplitudoj impul'sa i ehnergiej radiatsii. Omicheskoe soprotivlenie sluzhit takzhe predokhranitel'nym ustrojstvom dlya gazovykh detektorov. Kabel', soedinyayushchij soprotivlenie s usilitelem toka, mozhet byt' prolozhen na rasstoyanie bolee 500 metrov bez iskazheniya formy impul'sa, pri uslovii ispol'zovaniya koaksial'nogo kabelya i pri uslovii, chto vkhodnoe

The role of oral corrective feedback in L2 Portuguese classrooms

Directory of Open Access Journals (Sweden)

Bárbara Battistelli Rauber

2017-11-01

Full Text Available Languages are generally acquired along with and for others, in varied environments which influence second language (L2 learning. One of the most important influences of the linguistic environment is that it provides learners with information about the incorrectness of their utterances (ORTEGA, 2009. This process is referred as Corrective Feedback (LYSTER; RANTA, 1997, RUSSEL; SPADA, 2006, which is a complex phenomenon that has different functions in formal L2 instruction. The purpose of the current study was to investigate the types of oral CF in L2 Portuguese classrooms and to analyze how learners responded to CF provided by their teachers. The data presented were obtained from the observation of lessons in an elementary and an intermediate group of a Portuguese course offered at a private American university. The results of this observational study show that elicitation, explicit correction and metalinguistic feedback are the main CF methods employed by the teachers.

Analysis of possible application of regression analysis method in automation of fitting numerical data; Analiza mogucnosti primene metoda regresione analize u cilju automatizovanog fitovanja numerickih podataka

Energy Technology Data Exchange (ETDEWEB)

Altiparmakov, D; Zavaljevski, N; Dasic, N [Boris Kidric Institute of Nuclear Sciences Vinca, Beograd (Yugoslavia)

1988-12-15

The report presents an analysis of possible calculation procedure for automated data fitting. The problem is defined in the first part, and it is shown that solution demands optimisation under invariance conditions (stochastic errors) which is part of theory of planning optimal experiments. A rough review of knowledge in this field is given. Second part of the report some statistical and optimisation methods are analysed in more detail in order to be used for automated fitting. Evaluation of possible relevant calculation procedure is presented. Izvestaj prikazuje analizu mogucnosti realizacije racunskog postupka za automatizovano fitovanje poodataka. U prvom delu izvestaja razmatran je postavljeni problem i ukazano je da njegovo resavanje zahteva optimizaciju u uslovima neodredjenosti (slucajnih gresaka) sto spada u okvir teorije planiranja optimalnih eksperimenata. Dat je grubi pregled stepena izucenosti ove probblematike. U drugom delu izvestaja detaljnije su razmotrene neke statisticke i optimizacione metode koje bi se koristile u cilju automatizovanog fitovanja. Na osnovu toga data je procena mogucnosti realizacije odgovarajuuceg racunskog postupka. (author)

Measurement of crack in rock using transmitted elastic wave; Toka danseiha ni yoru ganbannai kiretsu keisoku

Energy Technology Data Exchange (ETDEWEB)

Tomishima, Y [National Institute for Resources and Environment, Tsukuba (Japan)

1997-10-22

With an objective to measure at high accuracy the positions and sizes of cracks existing in rocks, a theoretical study has been carried out on a method which utilizes initial movement characteristics of P-wave. The P-wave which diffracts and propagates at a crack tip has a characteristic that its phase may reverse according to the positional relationship between vibration transmitting and receiving points. This positional relationship is decided by the Poisson ratio of media alone. Therefore, when the P-wave is measured while the vibration transmitting and receiving points are moved sandwiching a crack, the polarity of received waveform is changed from negative to positive at a certain position as a boundary. In order to measure this change at high accuracy, an elastic wave of high frequency is required, but it is not easy to obtain the wave in situ. In contrast, utilizing the initial movement polarity can not only identify the change in the polarity, but also perform measurement at high accuracy. The present study discussed a case where cracks are parallel with a free surface and a case where the cracks have angles with the free surface, whereas it was shown that positions of the upper and lower tips of a crack, and length of the crack can be measured accurately. 4 refs., 5 figs.

Arc in a Gas Flowing Through a Magnetic Field; Duga v potoke gaza pri nalichii magnitnogo polya

Energy Technology Data Exchange (ETDEWEB)

Baranov, V. Ju.; Vasil' eva, I. A.; Ul' janov, K. N. [Vsesojuznyj Jelektrotehnicheskij Institut Im.V.I. Lenina, Moskva, SSSR (Russian Federation)

1966-10-15

The authors have previously shown that ad.c. electric arc can be used in the pre-ionizer of a non-equilibrium MHD generator. The pre-ionizer must be located immediately before the duct inlet, where the magnetic field is fairly strong and may have a substantial effect on the current in the gas flow. In the present paper they consider the behaviour of an electric arc in a gas flowing through a magnetic field. The experiments were carried out with argon, using the apparatus described in Ref. [1] of the paper. The flow was set up in a closed glass loop by means of an electromagnetic accelerator (MHD motor). By suitably treating and adjusting the loop it was possible to conduct the investigations in spectrally pure argon. The pressure varied between 1 and 100 mm Hg, and the flow velocity V{sub 0}{<=} 10{sup 4} cm/sec. The magnetic field in the accelerator (B{sub 1}) and near the arc (B{sub 2}) varied between zero and 7 x 10{sup 3} Oe. The spatial distribution of the electron concentration (n{sub e}) and the electron temperature (T{sub e}) were measured using probe and spectrum analysis methods. The gas temperature (T{sub g} ) was measured by the hot wire method and the flow velocity with the help of pitot tubes. Experiments were carried out in both decelerating and accelerating magnetic fields. (author) [Russian] Jelektricheskaja duga postojannogo toka mozhet byt' ispol'zovana v kachestve jelementa predionizatora v neravnovesnom MGDG. Predionizator dolzhen byt' raspolozhen neposredstvenno pered kanalom generatora v oblasti dostatochno sil'nogo magnitnogo polja, kotoroe mozhet sushhestvenno povlijat' na protekanie toka v potoke. Issledovano povedenie jelektricheskoj dugi v potoke pri nalichii magnitnogo polja. Jeksperimenty byli vypolneny v argone na ustanovke, opisannoj v rabote [1] . Potok v zamknutom stekljannom konture sozdavalsja pri pomoshhi jelektromagnitnogo uskoritelja (MGD dvigatelja). Sootvetstvujushhaja obrabotka i trenirovka kontura davala vozmozhnost

Non-destructive inspection technology using a magnetic transmission sensor; Jiki toka sensor wo mochiita hihakai kensa gijutsu

Energy Technology Data Exchange (ETDEWEB)

Obama, H.

1996-06-01

A newly developed magnetic sensor for non-destructive inspection has acquired the U.S. patent. The starting point of the invention was an inspection of aluminum broth bags in cup-noodle containers with aluminum leaf cover, which was asked from a food maker. A method was developed, in which the microwave is transmitted through containers below their covers and the reflected wave is detected. Then, development of an inspection apparatus for spot welding parts used for automobiles was requested. Since welding is carried out using large current for the spot welding, magnetic characteristics change greatly, which is a remarkable phenomenon appearing especially for magnetic substances. This was found out to be the same phenomenon as the hardening of swords consisting of high temperature heating, pressurizing, and quenching. This substance with two changes can be considered as another material different from the base metal. Coils fitted to impressions were made, and their test pieces were measured. The correlation coefficient over 0.9 was obtained between measured values and results of tensile strength tests. This apparatus can be applied to the non-destructive inspection of internal defects of castings. 2 figs.

From "Nolite turbare circulos meos!" to "Don’t delete my folder"

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Valerian Antohe

2009-01-01

Full Text Available Arhimede îsi desena figurile pe nisipul plajei, pe pământ bătut sau în cenusă pusă pe o pardoseală ori pe propriul să corp, uns în prealabil cu untdelemn; pe corp trasa figurile cu ajutorul unghiei. Când generalul roman Marcellus a cucerit în anul 212 î.e.n. Siracusa din Sicilia, orasul lui Arhimede, un soldat roman a dat peste acest geniu contemplându-si cercurile pe care le desenase pe nisip. "Nolite turbare circulos meos!" (nu-mi strica cercurile i-a strigat Arhimede soldatului; dar romanul, iritat, l-a înjunghiat cu spada, omorându-l. În zilele de azi locul de exprimare a ideilor matematice a fost înlocuit de ecranul calculatorului iar platformele dedicate studiului matematicii au deschis o nouă perspectivă domeniului cercetării. O incursiune în domeniu este desigur o provocare dar şi o invitaţie pentru educaţi şi educatori.

The Pulsed Neutron Technique Applied to Fast Non-Multiplying Assemblies; Application de la Methode des Neutrons Pulses aux Assemblages Non Multiplicateurs a Neutrons Rapides; Primenenie metoda impul'snykh nejtronov pri izuchenii povedeniya bystrykh nejtronov v nerazmnozhayushchikh sborkakh; Aplicacion de la Tecnica de los Neutrones Pulsados a Conjuntos Rapidos de Materiales No Multiplicadores

Energy Technology Data Exchange (ETDEWEB)

Beghian, L. E.; Wilensky, S. [Massachusetts Institute of Technology, Cambridge, MA (United States)

1965-10-15

inelastica. El procedimiento teorico se ha comprobado experimentalmente para calcular la contribucion de la dispersion elastica. Empleando esta tecnica, se ha medido la seccion eficaz de dispersion inelastica correspondiente al Fe, para energias de los neutrones primarios comprendidas entre 0,8-y 1,5 MeV. Esta tecnica de empleo de una fuente de neutrones pulsados se ha utilizado tambien para medir las constantes de decrecimiento en placas de Pb. Las condiciones de experimentacion se aproximan a los supuestos que suelen formularse cuando se resuelve la ecuacion de transporte de Boltzmann en funcion del tiempo (es decir, una sola dimension y una sola velocidad). Los autores han medido las constantes de decrecimiento en placas de plomo de 71 x 81 cm. con espesores de 5, 10, 15 y 20 cm, y comparan los resultados alcanzados, una vez corregidos para tener en cuenta la degradacion energetica y el conjunto finito,con las soluciones aproximadas de la ecuacion de transporte de Boltzmann. (author) [Russian] Uskoritel' Van-de-Graafa s nanosekundnymi impul'sami ispol'zovali dlja izuchenija povedenija bystryh nejtronov v nerazmnozhajushhih metallicheskih sborkah. Dlja izmerenija sechenij neuprugogo rassejanija zheleza na bystryh nejtronah primenili metod impul'snogo istochnika nejtronov, analogichnyj metodu, primenjaemomu dlja izmerenija sechenij pogloshhenija v teplovyh sborkah, za iskljucheniem togo, chto vremja bystrogo spada izmerjaetsja nano-, a ne mikrosekundami. Nanosekundnye impul'sy monojenergeticheskih nejtronov inzhektirujutsja v zheleznye sborki razlichnyh razmerov. Otmecheno, chto potok nejtronov v jetih sborkah spadaet jeksponencial'no s harakteristicheskoj postojannoj spada. Postojannaja spada sostoit iz summy chlenov, kotorye predstavljajut soboj poterju nejtronov vsledstvie utechki i poteri jenergii, poterja jenergii predstavljaet so''oj poterju nejtronov, poskol'ku ispol'zuetsja porogovyj nejtronnyj detektor. Chlen utechki za schet uprugogo i neuprugogo rassejanija

MANEJO FITOTÉCNICO DA BANANEIRA, CULTIVAR D' ANGOLA (AAB, VISANDO AO CONTROLE DA SIGATOKA-NEGRA

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MARIA DE JESUS BARBOSA CAVALCANTE

2014-01-01

Full Text Available The objective of this work was to evaluate management systems for the control of Black Siga- toka in the cultivation of banana D'Angola cultivar. The experiment was installed and carried out at Embrapa Acre, Rio Branco - AC with the treatments distributed in randomized complete blocks with six replications consisting of different planting densities, corresponding to T1 - (1.111 plants ha-1; T2 - 1.666 plants ha-1; T3 - 2.000 plants ha-1; T4 - 1.333 plants ha-1; T5 - 2.500 plants ha-1 and; T6 - 1.111 plants ha-1 under rubber trees. The evaluations were carried out during two cycles of production. Plants of cv. D'Angola (AAB cultivated in 3.0 x 3.0 m, shaded by the rubber trees, presented higher plant height, higher number of functional leaves at flowering and harvest, higher average bunch weight, greater weight of the bunches, longer cycle production and reduced severity of black sigatoka. Highest yields were obtained when we adopted higher densities. The banana intercropping with rubber trees proved to be a good alternative to permit cultivation of cv. D'Angola (long banana.

Palaeolithic/Mesolithic stratigraphic sequences at Údolí samoty and Janova zátoka rock shelters (Northern Bohemia)

Czech Academy of Sciences Publication Activity Database

Svoboda, Jiří; Novák, J.; Novák, Martin; Sázelová, S.; Demek, J.; Hladilová, Š.; Peša, V.

2013-01-01

Roč. 43, č. 4 (2013), s. 469-488 ISSN 0342-734X R&D Projects: GA ČR GA13-08169S Institutional support: RVO:68081758 Keywords : Pleistocene/Holocene boundary * Northern Bohemia * stratigraphic sequences * rock shelters * environment Subject RIV: AC - Archeology, Anthropology, Ethnology

EXPLICIT AND IMPLICIT TYPES OF CORRECTIVE FEEDBACK IN TURKISH PRIMARY EDUCATION

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M. Pınar BABANOĞLU

2015-08-01

Full Text Available Corrective feedback (CF has become a significant notion in EFL learning as it is seen as a facilitator to enhance L2 learning. CF is basically refer to any feedback provided to learner containing evidence of learner error of language form (Russel & Spada, 2006, or an immediate response by teacher to learner utterances containing error explained which is also theoretically a complex phenomenon with several functions (Lyster, et.al., 2012. A distinction can be drawn whether CF types are being implicit or explicit that there is not a clear indication of error in implicit CF whereas there is in explicit CF types. This study investigates the explicit and implicit CF types used by teachers in EFL classrooms in primary levels aiming at to see whether there are quantitative differences in the preference of CF types being explicit/implicit. Data of the study gathered from EFL classroom teachers’ course session observations at various levels of primary school. Methodology depends on frequency analysis of CF types employed by teachers during EFL course sessions. Results favored explicit CF types by teachers during EFL sessions.

Professor de língua estrangeira para crianças: conhecimentos teórico-metodológicos desejados Teachers of english to young learners: expected theoretical and methodological knowledge

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Leandra Ines Seganfredo Santos

2009-12-01

Full Text Available Tem aumentado o interesse pelo domínio da língua inglesa como ferramenta de comunicação para inclusão no mundo globalizado, bem como a oferta de seu ensino para crianças (CAMERON, 2001; PINTER, 2006. Neste texto, buscamos refletir acerca da formação do docente para atuar junto a esse público em especial. Trazemos sugestões de mudanças no processo vigente, que venham ao encontro das necessidades contemporâneas (SACRISTÁN, 2006; LIBÂNEO, 2006, mediante a visão de cinco professoras que lecionam língua inglesa para crianças em um município matogrossense. Os dados fazem parte de um estudo qualitativo e foram gerados por meio de entrevistas individuais e sessões reflexivas coletivas entre o grupo de docentes e a pesquisadora. Com base em seus dizeres, apresentamos os conhecimentos teórico-metodológicos adquiridos e os desejados, e algumas características peculiares a esses docentes (SPADA, 2004. São abordadas, também, algumas dificuldades encontradas e a importância da experiência para o desenvolvimento da docência. A formação é entendida como contínua, com caráter coletivo, colaborativo e reflexivo (PORTO, 2004; IMBERNÓN, 2005; PIMENTA e GHEDIN, 2005, possibilitando ao docente desenvolver ação investigativa de sua prática pedagógica.The interest for the domain of the English Language (EL to young learners is increasing. It is considered a communication tool for inclusion in a globalized world (CAMERON, 2001; PINTER, 2006. The article aims at discussing the development of teachers for this specific context. Some suggestions of changes in the current process are mentioned, so that it meets the contemporary needs (SACRISTÁN, 2006; LIBÂNEO, 2006. They show points of view of five teachers that teach EL for children in a city in Mato Grosso State. The data are part of a qualitative study and to collect them, individual interviews and collective reflexive sessions were used with the teachers' group and the researcher

Simulation of << Hot >> particles formation during the accident at the Chernobyl NPP.; Modelirovanie obrazovaniya << goryachikh >> chastits vo vremya avarii na ChAEhS.

Energy Technology Data Exchange (ETDEWEB)

Kashparov, V A; Ivanov, Yu A; Prister, B S; Zvarich, S I; Protsak, V P; Khomutinin, Yu V; Polyakov, V D; Gudkov, A N; Kurepin, A D; Pazukhin, Eh M [Yinstitut Syil` s` kogospodars` koyi Radyiologyiyi, Kyiv (Ukraine); [Moskovskij Inzhenerno-Fizicheskij Inst., Moscow (Russian Federation)

1994-12-31

Dispersal composition of fuel << hot >> particles formed after oxidation of real Chernobyl nuclear fuel in the air for 3-21 hours at 673-1173 K was obtained. Mechanism of ruthenium particles formation during the accident (with dispersion of nuclear fuel) as a result of ruthenium oxidation, its sublimation, condensation and restoration on materials, presented by the elements of iron group was modelled. Dynamics of relative release of fission products, as well as of transuranium and transplutonium elements from real and modeled << hot >> particles at their high temperature incineration (1273-2273 K) in the inert media was measured.

Desire thinking: what is it and what drives it?

Science.gov (United States)

Caselli, Gabriele; Spada, Marcantonio M

2015-05-01

The aim of this study was to provide an overview of the construct of desire thinking and test a metacognitive model of desire thinking and craving, based on the work of Spada, Caselli and Wells (2012; 2013), which aims to explain the perseveration of desire thinking. We conducted two studies involving four clinical samples (total N = 493) and a community sample (N = 494) presenting with different addictive behaviors. The relationships among variables were examined by testing the fit of path models within each sample. In the model presented it was proposed that positive metacognitions about desire thinking are associated with, in turn, imaginal prefiguration and verbal perseveration, marking the activation of desire thinking. Verbal perseveration is then associated to negative metacognitions about desire thinking and craving denoting the pathological escalation of desire thinking. Finally, a direct association between positive metacognitions about desire thinking and negative metacognitions about desire thinking would mark those occasions where target-achieving behaviour runs as an automatized schemata without the experience of craving. Results indicated a good model fit in the clinical sample and a variation in the model structure in the community sample. These findings provide further support for the application of metacognitive theory to desire thinking and craving in addictive behaviors. Copyright © 2014 Elsevier Ltd. All rights reserved.

ICRF Mode Conversion Studies with Phase Contrast Imaging and Comparisons with Full-Wave Simulations

International Nuclear Information System (INIS)

Tsujii, N.; Bonoli, P. T.; Lin, Y.; Wright, J. C.; Wukitch, S. J.; Porkolab, M.; Jaeger, E. F.; Harvey, R. W.

2011-01-01

Waves in the ion cyclotron range of frequencies (ICRF) are widely used to heat toka-mak plasmas. In a multi-ion-species plasma, the FW converts to ion cyclotron waves (ICW) and ion Bernstein waves (IBW) around the ion-ion hybrid resonance (mode conversion). The mode converted wave is of interest as an actuator to optimise plasma performance through flow drive and current drive. Numerical simulations are essential to describe these processes accurately, and it is important that these simulation codes be validated. On Alcator C-Mod, direct measurements of the mode converted waves have been performed using Phase Contrast Imaging (PCI), which measures the line-integrated electron density fluctuations. The results were compared to full-wave simulations AORSA and TORIC. AORSA is coupled to a Fokker-Planck code CQL3D for self-consistent simulation of the wave electric field and the minority distribution function. The simulation results are compared to PCI measurements using synthetic diagnostic. The experiments were performed in D-H and D- 3 He plasmas over a wide range of ion species concentrations. The simulations agreed well with the measurements in the strong absorption regime. However, the measured fluctuation intensity was smaller by 1-2 orders of magnitudes in the weakly abosorbing regime, and a realistic description of the plasma edge including dissipation and antenna geometry may be required in these cases.

Injection Experiments in Jutphaas; Injection au Centre de Jutphaas; Ehksperimenty s inzhektsiej v institute fiziki plazmy v yutfaas; Experimentos de Inyeccion en Jutphaas

Energy Technology Data Exchange (ETDEWEB)

De Kluiver, H.; Brandt, H. B.; Strijland, W.; Huizenga, W. [Fom-Instituut voor Plasma-Fysica, Runhuizen, Jutphaas (Netherlands)

1966-04-15

10 a 20 {mu}s disminuyen al 20% del valor que tenian antes de la interrupcion del haz; a continuacion decrecen mas lentamente, con una constante de tiempo de 50 {mu}s. El sondeo radial del plasma acusaba un aumento considerable de la corriente colectada hacia el centro, con una disminucion simultanea del tiempo de decrecimiento. Las mediciones sugieren que, durante la inyeccion, se acumula una carga espacial positiva en el centro, que va llenando continuamente la region exterior, mas adiabatica, de la cuspide. Despues de interrumpir el haz, el numero de particulas de la region no adiabatica disminuye con rapidez, mientras que las particulas de la region adiabatica desaparecen mas lentamente (50 {mu}s). (author) [Russian] Provodilis' jeksperimenty po inzhekcii parallel'no osi magnitnogo polja antiprobochnoj geometrii v neadiabaticheskom rezhime. Na modeli s jelektronnym puchkom polovina inzhektirovannogo toka vremenno zahvatyvaetsja. Ustanovleno, chto zavisimost' vremeni uderzhanija ot magnitnogo polja soglasuetsja s raschetom traektorij. Pri vneshnih jelektrostaticheskih poljah bylo dostignuto polnoe uderzhanie za iskljucheniem poter', svjazannyh s rassejaniem na ostatochnom gaze. Byli polucheny protonnye puchki v 75 ma pri 17 kv iz ionnogo istochnika s impul'sami dlitel'nost'ju 2 mksek. Pri naprjazhennosti polja 13 kGs v lovushku vhodil polnyj tok v 35 ma, iz kotoryh 15 ma vyhodili cherez protivopolozhnyj konec ee. Kol'cevoj kollektor v shheli lovushki izmerjal poteri. Ustanovleno, chto vremja spada sostavljalo 50 mksek, chto primerno v dva raza prevyshaet nashu luchshuju ocenku vremeni perezarjadki i v desjat' raz - velichinu, poluchennuju iz analiza neabatichnosti orbit. Integrirovanie tokov po kol'cevoj shheli daet poterju v 10-20 ma. Iz jetih dannyh vytekaet srednjaja plotnost' 0,5 x 10{sup 9} ionov/sm{sup 3}. Zond special'noj formy, sobirajushhij tol'ko gorjachie iony, pokazal v obshhem to zhe povedenie toka, chto i obychnye zondy. Pri davlenii H{sub 2} v 10

A modification of the method for determining current efficiency of aluminium electrolytic cells; Modification de la methode permettant de determiner le rendement des cuves dans la production d'aluminium par electrolyse; Izmenenie metoda opredeleniya ehffektivnosti toka v alyuminievykh ehlektroliticheskikh bakakh; Modificacion del metodo para determinar el rendimiento de las celdas utilizadas en la produccion de aluminio por electrolisis

Energy Technology Data Exchange (ETDEWEB)

Pradzynski, A [Institute of Basic Technical Problems, Polish Academy of Sciences. Warsaw (Poland); Orman, Z [Institute of Nonferrous Metals, Gliwice (Poland)

1962-01-15

de faciliter l'application de cette methode dans les usines d'aluminium et d'eviter toutes les restrictions et tous les dangers qu'entraine la manipulation, en dehors des laboratoires speciaux pour l'etude des radioisotopes, de sources radioactives non scellees. De l'or inactif a ete introduit dans' l'alliage type et dans le bain de la cuve electrolytique. La concentration d'or dans les echantillons d'alliage type et dans les echantillons preleves dans la cuve a ete mesuree apres irradiation de ces echantillons dans un reacteur nucleaire. (author) [Spanish] El procedimiento para determinar el rendimiento de las celdas para la produccion de aluminio por electrolisis fue descrito inicialmente por Rempel y col. y fue perfeccionado por Bozoky y col. que emplearon el radioisotopo {sup 198}Au. Este procedimiento consiste en preparar aleaciones tipo de aluminio con {sup 198}Au y medir la elevada actividad especifica de muestras de la aleacion con un tubo Geiger-Mueller, introduciendo plomo como absorbente entre el tubo y la muestra. Los autores midieron la actividad especifica de la aleacion tipo despues de diluirla con una cantidad conocida de aluminio puro. De esta manera, las muestras de aleacion tipo diluida y las muestras tomadas en la celda electrolitica tienen una actividad especifica del mismo orden de magnitud, que puede ser medida sin necesidad de absorbente. Los autores han recurrido al analisis por radiactivacion con objeto de facilitar la aplicacion de este procedimiento en las fabricas de aluminio y evitar las restricciones y los peligros que supone la utilizacion de fuentes de radiacion no encerradas fuera .de los laboratorios de radioisotopos. El procedimiento consiste en introducir oro inactivo en la aleacion tipo y en la masa fundida de la celda electrolitica. Se extraen muestras de la aleacion y del electrolito y, despues de irradiarlas en un reactor nuclear, se determina la concentracion de oro. (author) [Russian] Metod opredeleniya ehffektivnosti toka v

Oral Competency of ESL/EFL Learners in Sri Lankan Rural School Context

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Sarath Withanarachchi Samaranayake

2016-06-01

Full Text Available This study investigates the current teaching trends and practices in teaching oral English in rural Sinhala-medium schools in Sri Lanka and their relevance to the current theoretical, empirical, and pedagogical perspectives of second-language acquisition (SLA. The present study, which was conducted in two Sri Lankan Sinhala-medium rural schools, is a case study in which the classroom observation, interviewing of the participants, and videotaping of students’ interaction were included as data collection tools. The spoken data were analyzed using the Communicative Orientation of Language Teaching (COLT scheme designed by Fröhlich, Spada, and Allen, while the numerical data obtained from the structured speaking test (Cambridge Key English for Schools Test were analyzed using independent samples t test. The findings of the study indicate that the instructional method used by English teachers does not provide the learners with adequate input of the target language to improve their oral communication skills in rural school contexts. As a result, a majority of students from rural schools in Sri Lanka demonstrate a limited or a low proficiency level in oral communication in English. Therefore, possible reasons for the lack of greater awareness towards more communicative teaching are discussed, and suggestions for promoting changes in teaching English as a Foreign Language (EFL in rural school contexts are offered.

Charge-storage techniques for pulse-height analysis; Techniques de stockage electrostatique pour l'analyse en amplitude d'impulsion; Metod nakopleniya zaryada dlya amplitudnogo analiza impul'sov; Tecnicas de almacenamiento de cargas para analisis de amplitud de impulsos

Energy Technology Data Exchange (ETDEWEB)

Costrell, L; Brueckmann, R E [National Bureau of Standards, Washington, DC (United States)

1962-04-15

investigaciones realizadas en el National Bureau of Standards (NBS). Los autores han construido un analizador de almacenamiento de cargas que se esta empleando con el sincrotron de 180 MeV del NBS en un experimento de absorcion nuclear que, sin ese aparato, presentaria obstaculos considerables. El analizador almacena temporalmente por medios electrostaticos los datos de amplitud de impulsos durante las rafagas del acelerador y en los intervalos entre rafagas, analiza el contenido del almacenamiento temporal, para pasarlos seguidamente a una memoria convencional de nucleo magnetico. Los datos presentados confirman la posibilidad de emplear esta tecnica para impulsos del orden del nanosegundo. (author) [Russian] Nizkie rabochie tsikly mnogikh impul'snykh uskoritelej delayut neobkhodimymi vysokie chastoty sledovaniya impul'sov vo vspyshkakh dlya sbora dostatochnykh dannykh v techenie razumnogo perioda vremeni. Ne tol'ko soobrazheniya ehkonomii, na kotorye vliyaet dorogostoyashchee mashinnoe vremya, zastavlyayut ispol'zovat' vysokie chastoty sledovaniya impul'sov, no i chisto tekhnicheskie soobrazheniya chasto delayut nevozmozhnymi ehksperimenty, esli chastota sledovaniya impul'sov na vspyshku nedostatochno velika dlya togo, chtoby isklyuchit' Nizkie rabochie tsikly mnogikh impul'snykh uskoritelej delayut neobkhodimymi vysokie chastoty sledovaniya impul'sov vo vspyshkakh dlya sbora dostatochnykh dannykh v techenie razumnogo perioda vremeni. Ne tol'ko soobrazheniya ehkonomii, na kotorye vliyaet dorogostoyashchee mashinnoe vremya, zastavlyayut ispol'zovat' vysokie chastoty sledovaniya impul'sov, no i chisto tekhnicheskie soobrazheniya chasto delayut nevozmozhnymi ehksperimenty, esli chastota sledovaniya impul'sov na vspyshku nedostatochno velika dlya togo, chtoby isklyuchit' ispol'zovanie obychnykh amplitudnykh analizatorov impul'sov. Po ehtim prichinam mnogo usilij udeleno razrabotke vysokoskorostnykh amplitudnykh analizatorov impul'sov dlya ispol'zovaniya s impul'snymi uskoritelyami

Memorizing circuit for long pulses; Circuit de memoire pour impulsions longues; Zapominayushchee ustrojstvo dlya dlitel'nykh impul'sov; Circuito memorizador para impulsos de larga duracion

Energy Technology Data Exchange (ETDEWEB)

Coli, M; Horn, G [Sorin Centro Ricerche Nucleari di Saluggia (Italy)

1962-04-15

t + {tau}. Se suman los impulsos alargados de fase opuesta y se obtiene asi en la salida un impulso de amplitud A y de anchura t. El retardo {tau} es controlado por dos univibradores disparados a una distancia t (circuito de control del retardo) por un amplificador saturado que transforma en rectangular al impulso de entrada y da dos impulsos por medio de un circuito diferenciador (circuito medidor del retardo). El impulso de salida se pasa de nuevo a la entrada a traves de un atenuador y de una linea de retardo, El ciclo se repite con una frecuencia de {approx} 1/{tau}. El impulso memorizado tiene un ancho de 50 {mu}s a 10 ms y hasta mas. La frecuencia de repeticion puede variar desde 10{sup 4} Hz hasta 30 Hz e incluso menos. Se describe otro circuito basado en el mismo principio y que es capaz de memorizar la configuracion del impulso de entrada ademas de su amplitud y de su anchura. (author) [Russian] Blok-skhema predostavlyaet vozmozhnost' neogranichennogo zapominaniya polozhitel'nykh impul'sov lyuboj formy s sokhraneniem kak ikh amplitudy, tak i ikh shiriny. Teoreticheski pryamougol'nyj impul's s amplitudoj A i shirinoj t, proizvodimyj v kachestve odnokratnogo impul'sa v moment t = 0 mozhet byt' vosproizveden v svoej sobstvennoj zone cherez lyuboj promezhutok vremeni t, tak chto on mozhet byt' zaderzhan na ostsilloskope, sinkhronizirovannom s chastotoj povtoreniya {approx_equal} 1/{tau}. Narastayushchaya forma impul'sa ne zapominaetsya, tak chto vremya narastaniya i spada uderzhannogo ostsilloskopom impul'sa svojstvenny lish' samomu zapominayushchemu ustrojstvu. Po sushchestvu blok-skhema mozhet rassmatrivat'sya kak sostoyashchaya iz dvukh rasshiryayushchikh konturov. EHti kontury prevrashchayut vkhodnuyu shirinu t v t + {tau}. Udlinennye impul'sy protivopolozhnykh faz skladyvayutsya i dayut vykhodnoj impul's s amplitudoj A i shirinoj t. Vremya zaderzhki {tau} reguliruetsya dvumya konturami, ustojchivymi tol'ko v odnom sostoyanii i privodimymi v dejstvie s

Final report of the project performance assessment and economic evaluation of nuclear waste management

International Nuclear Information System (INIS)

Rasilainen, K.; Anttila, M.; Hautojaervi, A.

1993-05-01

The publication is the final report of project Performance Assessment and Economic Evaluation of Nuclear Waste Management (TOKA) at the Nuclear Engineering Laboratory of VTT (Technical Research Centre of Finland), forming part of the Publicly Financed Nuclear Waste Management Research Programme (JYT). The project covers safety and cost aspects of all phases of nuclear waste management. The main emphasis has been on developing an integrated system of models for performance assessment of nuclear waste repositories. During the four years the project has so far been in progress, the total amount of work has been around 14 person-years. Computer codes are the main tools in the project, they are either developed by the project team or acquired from abroad. In-house model development has been especially active in groundwater flow, near-field and migration modelling. The quantitative interpretation of Finnish tracer experiments in the laboratory and natural analogue studies at Palmottu support performance assessments via increased confidence in the migration concepts used. The performance assessment philosophy adopted by the team consists of deterministic modelling and pragmatic scenario analysis. This is supported by the long-term experience in practical performance assessment of the team, and in theoretical probabilistic modelling exercises. The radiological risks of spent fuel transportation from the Loviisa nuclear power plant to Russia have been analysed using a probabilistic computer code and Finnish traffic accident statistics. The project assists the authorities in the annual assessment of utility estimates of funding needs for future nuclear waste management operations. The models and methods used within the project are tested in international verification/validation projects

Investigations of the chemical states of carrier-free phosphorus-32 as extracted into water from pile-irradiated sulphur; Recherches sur les etats chimiques du phosphore-32 sans entraineur obtenu par extraction aqueuse a partir de soufre irradie dans un reacteur; Issledovanie khimicheskogo sostoyaniya svobodnogo ot nositelya fosfora-32 pri izvlechenii ego v vodu iz obluchennoj v yadernom reaktore sery; Estudio de los estados quimicos del fosforo-32 libre de portador que se obtiene por extraccion acuosa del azufre irradiado en un reactor

Energy Technology Data Exchange (ETDEWEB)

Dahl, J B; Birkelund, O R [Institutt for Atomenergi, Kjeller, Lillestrom (Norway)

1962-01-15

nastoyashchem doklade dayutsya svedeniya otnositel'no khimicheskogo sostoyaniya fosfora-32 v vodnykh rastvorakh na razlichnykh stadiyakh prinyatogo v praktike protsessa polucheniya ehtogo ehlementa. Byli rassmotreny takzhe izmeneniya khimicheskogo sostoyaniya slozhnykh soedine- nij fosfora-32 v konechnykh produktakh v funktsii ot vremeni khraneniya. Bylo obnaruzheno, chto glavnym sostavlyayushchim veshchestvom yavlyaetsya fosfor-32, svyazan- nyj v vide ortofosfata. Po mere khimicheskoj obrabotki kolichestvo ortofosfata uvelichi- los' priblizitel'no s 70% pri nachale izvlecheniya i priblizitel'no do 98% v konechnom produkte svobodnogo ot nositelya fosfora-32. Ostatok sostoyal iz smesi piro-, tri-, tetra- i polifosfatov s dlinnoj tsep'yu (chislo P {>=} 5). Ni vo vremya obrazovaniya, ni vo vremya khraneniya v rastvorakh ne bylo obnaruzheno (kol'tseobraznykh) metafosfatov. EHti rezul'taty pokazyvayut, chto polifosfornye slozhnye soedineniya obrazovalis' v materiale misheni vo vremya oblucheniya. Osoboe vnimanie bylo obrashcheno na adsorbtsiyu svobodnogo ot nositelya fosfora-32 steklyannoj laboratornoj posudoj pri sushchestvuyushchikh ehksperimental'nykh usloviyakh. (author)

A novel time-to-pulse height converter for fast-neutron time-of-flight techniques; Nouveau convertisseur temps-amplitude d'impulsions pour les mesures du temps de vol des neutrons rapides; Novyj vremya-amplitudnyj preobrazovatel' impul'sov dlya izmereniya vremeni proleta bystrykh nejtronov; Nuevo convertidor tiempo-altura de impulsos para tecnicas de tiempo de vuelo de neutrones rapidos

Energy Technology Data Exchange (ETDEWEB)

Christiansen, J [Physikalisches Staatsinstitut, Hamburg, Federal Republic of Germany (Germany)

1962-04-15

} s con coincidencias gamma obtenidas de una fuente de {sup 60}Co y utilizando cristales plasticos NE 102, y de 2{tau} = 1,4 {center_dot} 10{sup -9} con coincidencias gamma de 511 KeV y utilizando cristales de Nal (Te). El metodo se utilizo tambien aplicando tecnicas de haces pulsantes. En la experiencia realizada se obtuvo, a partir de una radiofrecuencia pulsadora, una sucesion de impulsos muy aguzados, con una frecuencia de 8 MHz, que se transmitio a las placas de la valvula E80T. Se obtuvo un tiempo de resolucion de 2{tau} = 1,1 {center_dot} 10{sup -9} s con neutrones de 4 MeV, utilizando cristales plasticos de 0,7 pulgadas de largo. Normalmente la region de respuesta lineal fue de 30 ns (30 {center_dot} 10{sup -9} s), pero se consiguio aumentarla hasta 120 ns. (author) [Russian] Opisyvaetsya ehlektronnyj vremya-amplitudnyj preobrazovatel' impul'sov s ispol'zovaniem metoda umnozheniya perekryvayushchikhsya impul'sov vmesto obychnogo metoda ikh slozheniya. EHto dostigaetsya polucheniem sovpadeniya linejnogo piloobraznogo impul'sa s rezko ogranichennym igol'chatym impul'som. Piloobraznyj impul's postupaet na reshetku otklonyayushchej puchok lampy (E80T), a igol'chatyj impul's napravlyaetsya na otklonyayushchie plastiny, gde on otkryvaet lampu tol'ko v techenie promezhutka vremeni priblizitel'no 5 x 10{sup -9} sekund. Plastina poluchaet zaryad, proportsional'nyj raznitse vo vremeni mezhdu nachalom piloobraznogo i nachalom igol'chatogo impul'sov. Posylaemyj plastinoj impul's rasshiryaetsya i usilivaetsya i amplituda ego sootvetstvuet velichine raznitsy vo vremeni. EHtim metodom udalos' poluchit' razreshayushchuyu sposobnost' po vremeni, ravnuyu {tau} = 7 x 10{sup -12} sekundam s iskusstvennymi impul'sami, {tau} = 3 x 10{sup -10} sekundam s sovpadeniyami dlya kobal'ta-60 pri ispol'zovanii plasticheskogo kristalla NE 102, i {tau} = 1,4 x 10{sup -9} sekundy pri sovpadeniyakh v 511 kehv pri ispol'zovanii kristallov Nal (Te). EHtot metod byl ispol'zovan takzhe v sochetanii

Positive and negative metacognitions about alcohol use among university students: Psychometric properties of the PAMS and NAMS French versions.

Science.gov (United States)

Gierski, Fabien; Spada, Marcantonio M; Fois, Eveline; Picard, Aurélie; Naassila, Mickaël; Van der Linden, Martial

2015-08-01

Metacognitions about the positive and negative effects of alcohol use have been associated with various patterns of drinking. The aim of the present study was to validate French versions of the Positive Alcohol Metacognitions Scale (PAMS) and the Negative Alcohol Metacognitions Scale (NAMS) developed by Spada and Wells (2008, Addict. Behav. 33, 515) and to investigate the relationship between metacognitions and patterns of alcohol use among university students. Responses of 1600 university students who participated in an internet survey-based study on alcohol use were submitted to confirmatory (N=800, mean age 20.40 years, 45.50% male) and exploratory (N=800, mean age 20.34 years, 45.38% male) factor analyses in two separate samples. Alcohol use, binge drinking and mood were also assessed. In line with the original versions of the scales, results provided support for a two-factor structure of the French PAMS and NAMS. Both scales revealed adequate internal reliability. Good temporal stability was found for the two factors of the NAMS, whereas one factor of the PAMS showed weakness across time. Predictive validity revealed that negative alcohol metacognitions about the uncontrollability of alcohol use were found to be consistently associated with alcohol use and binge drinking, whereas positive metacognitions about alcohol use were found to be differentially associated with alcohol use and binge drinking. The French versions of the PAMS and NAMS exhibited suitable psychometric properties. This study also emphasized the role of metacognitions about alcohol use in drinking behaviour among university students. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

Fast Plasma from a Coaxial Gun; Plasma Rapide Produit par un Canon Coaxial; Bystraya plazma iz koaksial'nogo inzhektora; Produccion de Plasma Rapido Mediante un Inyector Coaxial

Energy Technology Data Exchange (ETDEWEB)

Marshall, J.; Henins, I. [Los Alamos Scientific Laboratory, Los Alamos, NM (United States)

1966-04-15

vzaimodejstvija radial'nogo toka plazmy i magnitnogo polja toka, protekajushhego vdol' central'nogo jelektroda. Vozmushhenie toka dvizhetsja cherez inzhektirovannyj gaz v napravlenii sopla inzhektora so skorost'ju Tilde-Operator 2,5 x 10{sup 7} sm/sek., akkumuliruja za soboj jenergiju magnitnogo polja i kineticheskuju jenergiju plazmy. Inzhektor so svoej akkumulirovannoj jenergiej vypolnjaet funkciju generatora moshhnosti s nizkim impedansom, vybrasyvajushhego v vakuum za predely sopla struju toka, kotoraja javljaetsja istochnikom bystroj plazmy ( Tilde-Operator 5 x 10{sup 17} dejtronov, Tilde-Operator 10{sup 8} sm/sek). V jetih jeksperimentah issledujutsja struja toka i plazma, kotoruju ona obrazuet. Mehanizm uskorenija slozhen i nedostatochno izuchen, odnako v obshirnoj serii jeksperimentov poluchena znachitel'naja informacija. Dlja diagnostiki ispol'zovalis' sledujushhie metody: vneshnie odnovitkovye diamagnitnye zondy, pojasa Rogovskogo vnutri vakuumnoj kamery, jelektricheskie zondy, vneshnie emkostnye zondy, magnitnyj i jelektrostaticheskij analiz chastic, spektroskopija, fotografija svetovyh izobrazhenij na misheni, vremja proleta s napravljajushhim polem i bez nego, d-d nejtrony iz ob{sup e}ma plazmy i dr. Skladyvaetsja predstavlenie, chto pered soplom inzhektora proishodit slozhnyj jelektromagnitnyj process- Process uskorenija zavisit ot nizkoj plotnosti gaza tam v protivopolozhnost' vysokoj plotnosti vnutri prozhektora. Bystraja plazma v osnovnom poluchaetsja iz gaza , adsorbirovannogo na jelektrodah. Jeto vyzyvaet neobhodimost' v chistom vakuume s tem, chtoby izbezhat' zagrjaznenija sil'no ionizirovannymi bystrymi ionami primesej (C{sup 5+}, 10{sup 8} sm/sek). Material jelektroda isparjaetsja, odnako ne vyzyvaet sil'nogo zagrjaznenija, poskol'ku ono pojavljaetsja pozdno. Vysokoe naprjazhenie, uskorjajushhee iony, svjazano s bystrym rasshireniem v vakuum magnitnogo potoka, vmorozhennogo v struju. Bystraja plazma imeet uzkoe konicheskoe raspredelenie s provalom v centre

Conformational Study of DNA Sugars: from the Gas Phase to Solution

Science.gov (United States)

Uriarte, Iciar; Vallejo-López, Montserrat; Cocinero, Emilio J.; Corzana, Francisco; Davis, Benjamin G.

2017-06-01

Sugars are versatile molecules that play a variety of roles in the organism. For example, they are important in energy storage processes or as structural scaffolds. Here, we focus on the monosaccharide present in DNA by addressing the conformational and puckering properties in the gas phase of α- and β-methyl-2-deoxy-ribofuranoside and α- and β-methyl-2-deoxy-ribopiranoside. Other sugars have been previously studied in the gas phase The work presented here stems from a combination of chemical synthesis, ultrafast vaporization methods, supersonic expansions, microwave spectroscopy (both chirped-pulsed and Balle-Flygare cavity-based spectrometers) and NMR spectroscopy. Previous studies in the gas phase had been performed on 2-deoxyribose, but only piranose forms were detected. However, thanks to the combination of these techniques, we have isolated and characterized for the first time the conformational landscape of the sugar present in DNA in its biologically relevant furanose form. Our gas phase study serves as a probe of the conformational preferences of these biomolecules under isolation conditions. Thanks to the NMR experiments, we can characterize the favored conformations in solution and extract the role of the solvent in the structure and puckering of the monosaccharides. E. J. Cocinero, A. Lesarri, P. Écija, F. J. Basterretxea, J.-U. Grabow, J. A. Fernández, F. Castaño, Angew. Chem. Int. Edit. 2012, 51, 3119. P. Écija, I. Uriarte, L. Spada, B. G. Davis, W. Caminati, F. J. Basterretxea, A. Lesarri, E. J. Cocinero, Chem. Commun. 2016, 52, 6241. I. Peña, E. J. Cocinero, C. Cabezas, A. Lesarri, S. Mata, P. Écija, A. M. Daly, Á. Cimas, C. Bermúdez, F. J. Basterretxea, S. Blanco, J. A. Fernández, J. C. López, F. Castaño, J. L. Alonso, Angew. Chem. Int. Edit. 2013, 52, 11840.

Turbulent Heating of Plasma by a Direct-Current Discharge; Chauffage Turbulent du Plasma par le Courant d'une Decharge Directe; ТУРБУЛЕНТНЫЙ НАГРЕВ ПЛАЗМЫ ТОКОМ ПРЯМОГО РАЗРЯДА; Calentamiento Turbulento del Plasma por una Corriente de Descarga Directa

Energy Technology Data Exchange (ETDEWEB)

Babykin, M. V.; Gavrin, P. P.; Zavojskij, E. K.; Rudakov, L. I.; Skorjupin, V. A. [Institut Atomnoj Ehnergii Im. I.V. Kurchatova, Moskva, SSSR (Russian Federation)

1966-04-15

, durante la inestabilidad de la corriente. Se ha observado que, en un plasma con turbulencia intensa, el espesor de la capa superficial es considerablemente mayor que c/{omega}{rho}. Se propone una explicacion de este hecho. Se estudia el mecanismo de calentamiento del plasma durante la inestabilidad de la corriente. En la memoria se expone una teoria detallada de este fenomeno. (author) [Russian] V doklade izlagajutsja rezul'taty jeksperimentov po turbulentnomu nagrevu plazmy tokom prjamogo razrjada v lovushke s magnitnymi probkami. Issledovalis' takzhe adiabaticheskoe szhatie nagretoj plazmy i nekotorye svojstva turbulentnoj plazmy. Magnitnoe pole narastalo do 9 kje za 1,75 msek. Pri poljah ot 0,5 do 9 kje lovushka zapolnjalas' dejterievoj plazmoj plotnost'ju 10{sup 12}-10{sup 13} sm-3 iz titanovyh inzhektorov. Odnovremenno mezhdu ih koncevymi jelektrodami vkljuchalas' emkost' prjamogo razrjada, zarjazhennaja do 10 Division-Sign 30 kv i sostavljajushhaja v razlichnyh opytah 0,2, 0,8 i 2,65 mkf. Razrjad nachinalsja v moment vstrechi plazmennyh struj. Vnachale on aperiodicheskij, s medlennym narastaniem toka, i na oscillogrammah nabljudajutsja kolebanija, svidetel'stvujushhie o neustojchivosti toka. Soprotivlenie plazmy, opredelennoe po toku i naprjazheniju na plazme, znachitel'no bol'she rasschitannogo po vremeni kulonovskih stolknovenij. Vnachale ono ravno 50-60 om i po mere zapolnenija lovushki i nagreva plazmy padaet do desjatyh dolej oma. Shumy na oscillogrammah toka prekrashhajutsja i razrjad stanovitsja kolebatel'nym. Pokazano, chto dlitel'nost' aperiodicheskogo rezhima opredeljaetsja vremenem zapolnenija. Iz izmerenij raspredelenija potenciala sleduet, chto do perehoda razrjada v kolebatel'nyj rezhim osnovnoe padenie potenciala proishodit v seredine lovushki, v oblasti ponizhennoj plotnosti. Zdes' tokovye skorosti maksimal'ny, i dolzhna razvivat'sja intensivnaja turbulentnost'. V rezul'tate voznikaet anomal'noe soprotivlenie plazmy i pogloshhaetsja znachitel

Use of radioactive tracers in studying the transport of solids in watercourses; Emploi de traceurs radioactifs pour l'etude du transport solide dans les cours d'eau; Ispol'zovanie radioaktivnykh indikatorov dlya izucheniya peremeshcheniya tverdykh chastits v vodnykh potokakh; Empleo de indicadores radiactivos para el estudio del transporte de solidos en las corrientes de agua

Energy Technology Data Exchange (ETDEWEB)

Courtois, G [Centre d' Etudes Nucleaires de Saclay (France); Jaeery, P; Heuzel, M [Laboratoire National d' Hydraulique de Chatou (France)

1962-01-15

aplicacion de los indicadores radiactivos a los estudios sobre modelos a escala reducida con el doble proposito de: a) disponer de un procedimiento de investigacion comun para los estudios efectuados sobre el terreno y en los modelos a escala reducida, con el objeto de poder controlar la fidelidad del modelo durante los ensayos de calibracion; b) aprovechar las ventajas que ofrecen los modelos a escala reducida en cuanto a facilidad de observacion y mediciones directas, para estudiar las posibilidades de mejorar el metodo de los indicadores, especialmente en lo que se refiere a la obtencion de datos cuantitativos. (author) [Russian] Natsional'naya gidravlicheskaya laboratoriya, vyrabotavshaya v sotrudnichestve s TSentrom yadernykh issledovanij v Sakle pribory i metody izucheniya dvizheniya donnykh otlozhenij pri pomoshchi metoda radioaktivnykh indikatorov, prilagaet v nastoyashchee vremya usiliya k tomu, chtoby osushchestvit' dejstvitel'no kolichestvennyj sposob issledovanij. Za poslednee vremya bylo provedeno dva opyta v prirodnykh usloviyakh v rekakh; pervyj iz nikh byl posvyashchen izucheniyu uvlecheniya gal'ki vodami Rony, a drugoj - izucheniyu peremeshcheniya peska v reke Niger. Parallel'no s poslednim opytom byli provedeny identichnye ispytaniya na makete reki Niger, sozdannom v laboratorii v SHatu. V ehtikh opytakh bylo ispol'zovano izluchenie margantsa-56 i natriya-24, vyzvannoe neposredstvennoj aktivatsiej tolchenoj kostochki abrikosa, izobrazhavshej v ispytaniyakh na makete prirodnye donnye otlozheniya Nigera. Sovmestnye usiliya laboratorii v SHatu i TSentra yadernykh issledovanij v Sakle napravleny v nastoyashchee vremya na primenenie metoda radioaktivnykh indikatorov k opytam na maketakh s dvojnoj tsel'yu: a) Vyrabotat' odinakovye metody issledovaniya v prirodnykh usloviyakh i na makete dlya proverki tochnosti maketa v stadii opytov po ehtalonirovaniyu; b) Ispol'zovat' legkost' vedeniya nablyudenij i proizvodstva neposredstvennykh izmerenij na maketakh dlya

Hodoscope performance and design; Construction et comportement d'un odoscope; Demonstratsiya i konstruktsiya godoskopa; Diseno y caracteristicas de funcionamiento de un hodoscopio

Energy Technology Data Exchange (ETDEWEB)

Boyarski, A; Ritson, D [Massachusetts Institute of Technology, Cambridge, MA (United States)

1962-04-15

circuitos de un sistema de 200 contadores dispuestos para hodoscopia, que se ha empleado en Brookhaven para fines experimentales. Los circuitos, los transistores y los fototubos se mostraron sumamente estables a largo plazo. La vida de los transistores fue de 0,5 . 10{sup 8} horas, y solo uno de los 200 fototubos se estropeo a los 6 meses de funcionamiento. El correcto funcionamiento del aparato es comprobado en media hora por una sencilla serie de rutinas de diagnostico. Los autores registraron los datos en una pelicula que fue leida por un barrido programado en la calculadora TXO del Massachusetts Institute of Technology. Para leer 400 pies (122 metros) de pelicula por este sistema, se precisa una hora. Se ha introducido una pequena modificacion en el aparato, que ahora almacena los datos paralelamente en un registro de desplazamiento y los pasa en serie a una cinta magnetica. Este sistema escribe en cinta un suceso de 300 bits en un milisegundo y hace innecesario el almacenaje intermedio. (author) [Russian] Daetsya opisanie raboty i skhemy godoskopnoj sistemy iz dvukhsot schetchikov, primenennoj vo vremya opyta v Brukkhevene. Skhema, tranzistory i fotoehlementy obnaruzhili isklyuchitel'nuyu prodolzhitel'nost' dejstviya. Vremya zhizni poluprovodnikovogo trioda 0,5 x 10{sup 8} chasov, i tol'ko odin fotoehlement iz 200 iznosilsya posle trekhmesyachnogo ispol'zovaniya. Prostoj ryad diagnosticheskikh osmotrov pozvolyaet proveryat' rabotu apparata cherez kazhdye polchasa. Dannye zapisyvayutsya na plenku, kotoraya chitaetsya s pomoshch'yu perfroirovannogo razvertyvatelya na vychislitel'noj mashine TKHO Massachusetskogo tekhnologicheskogo instituta. Po ehtoj sisteme trebuetsya odin chas, chtoby prochitat' 400 futov plenki. Delaetsya prostoe izmenenie v apparate, posredstvom kotorogo dannye razmeshchayutsya parallel'no v registratore smeshcheniya i zatem seriyami zachityvayutsya na magnitofonnuyu lentu. Takaya sistema zapisyvaet 300 znakov na plenku v odnu millisekundu i

Change of I-V characteristics of SiC diodes upon reactor irradiation; Modification des caracteristiques I-V de jonctions p-n au SiC du fait d'une irradiation dans un reacteur; Izmeneniya kharakteristik I-V vyrashchennogo v SiC perekhoda tipa p-n posle oblucheniya ego v reaktore; Modificaciones que sufren por irradiacion en un reactor las caracteristicas I-V de uniones p-n en SiC

Energy Technology Data Exchange (ETDEWEB)

Heerschap, M; De Coninck, R [Solid State Physics Dept., SCK-CEN, Mol (Belgium)

1962-04-15

distintas procedencias. Las uniones se obtuvieron en el horno de Lely. Midieron las caracteristicas directa e inversa durante la irradiacion, y despues de esta, hasta la temperatura de 150{sup o}C. Se estan realizando mediciones hasta 500{sup o}C. Han encontrado que uno de los tipos de diodo es resistente a los neutrones del BR-1 hasta un flujo integrado de 10{sup 15} neutrones/cm{sup 2}, mientras que el otro soporta hasta 10{sup 17} neutrones/cm{sup 2}. La memoria indica los cambios de las caracteristicas, asi como los resultados de algunos experimentos de recocido. (author) [Russian] V poiskakh poluprovodnikov, kotorye mogli by byt' ispol'zovany v reaktorakh s vysokoj plotnost'yu nejtronnogo potoka dlya izmereniya raspredeleniya potokov, my obluchali v bel'gijskom reaktore BR-1 perekhody tipa p-n v SiC. Byli oblucheny dva tipa diodov SiC razlichnogo proiskhozhdeniya. EHti perekhody vyrashchivayutsya v pechi Loli. Izmeneniya pryamoj i obratnoj kharakteristik byli izmereny posle i vo vremya oblucheniya vplot' do temperatury 150{sup o}C; v nastoyashchee vremya proizvodyatsya izmereniya vplot' do temperatury 500{sup o}C. Bylo ustanovleno, chto odin tip dioda vyderzhivaet nejtronnoe obluchenie reaktora BR-1 vplot' do integrirovannogo potoka 10{sup 15} nejtronov na kv. sm, togda kak drugoj tip vyderzhivaet obluchenie vplot' do potoka 10{sup 17} nejtronov na kv. sm. Dayutsya izmeneniya kharakteristik, a takzhe rezul'taty nekotorykh ehksperimentov otzhiga. (author)

Modelling of pressurized water reactor fuel, rod time dependent radial heat flow with boundary element method; Modeliranje spremenljivega radijalnega toplotnega toka tlacnovodne gorivne palice z metodo robnih elementov

Energy Technology Data Exchange (ETDEWEB)

Sarler, B [Institut Jozef Stefan, Ljubljana (Yugoslavia)

1987-07-01

The basic principles of the boundary element method numerical treatment of the radial flow heat diffusion equation are presented. The algorithm copes the time dependent Dirichlet and Neumann boundary conditions, temperature dependent material properties and regions from different materials in thermal contact. It is verified on the several analytically obtained test cases. The developed method is used for the modelling of unsteady radial heat flow in pressurized water reactor fuel rod. (author)

Detection of travel time delay caused by dilation of an artificial fracture due to pressurization; Jinko chika kiretsu kaatsu ni tomonau toka danseiha denpa jikan henka no kenshutsu

Energy Technology Data Exchange (ETDEWEB)

Tanaka, K; Moriya, H; Asanuma, H; Niitsuma, H [Tohoku University, Sendai (Japan). Faculty of Engineering

1996-10-01

By revealing the relation between dilation of a subsurface fracture due to pressurization and travel time delay, it may be possible to measure the information as to the subsurface fracture system as a geothermal reservoir. In this study, field experiment was conducted to clarify the relation between the travel time delay of elastic waves and the dilation of fracture, pressure, and incident angles. The travel time delay of P-wave and S-wave tended to increase with the pressurization. When incident angle was about 90{degree} against the fracture, the increase was ranging between 0 and 0.2 ms. The magnitude of this delay could not be explained only by the opening of main fracture. It was considered that there were micro-crack zones around the main fracture. The difference of P-S delay depended on the pressurization and change of the pressure. The delay depended on the incident angle against the fracture. The delay of S-wave showed the polarized wave direction dependency. However, the obtained results might greatly depend on the analytical method and parameters. 4 refs., 10 figs.

Calculated activities of some isotopes in the RA reactor highly enriched fuel significant for possible environmental contamination - Operational report; Radni izvestaj - Proracun aktivnosti nekih izotopa u visokoobogacenom uranskom gorivu reaktora RA, znacajnih sa gledista moguce kontaminacije okoline

Energy Technology Data Exchange (ETDEWEB)

Bulovic, V; Martinc, R; Cupac, S [Institute of Nuclear Sciences Boris Kidric, Vinca, Beograd (Serbia and Montenegro)

1976-12-15

This report contains calculation basis and obtained results of activities for three groups of isotopes in the RA reactor 80% enriched fuel element. The following isotopes are included: 1) {sup 85m}Kr, {sup 87}Kr, {sup 88}Kr, {sup 131}J, {sup 132}J, {sup 133}J, {sup 134}J, {sup 135}J, {sup 133}Xe, {sup 138}Xe i {sup 138}Cs, 2) {sup 89}Sr, {sup 90}Sr, {sup 91}Sr, {sup 92}Sr, {sup 95}Zr, {sup 97}Zr, {sup 103}Ru, {sup 105}Ru, {sup 106}Ru, {sup 129m}Te, {sup 134}Cs, {sup 137}Cs, {sup 140}Ba, {sup 144}Ce, kao i 3) {sup 238}Pu, {sup 239}Pu i {sup 240}Pu. It was estimated that the fuel is exposed to mean neutron flux. The periodicity of reactor operation is taken into account. Calculation results are given dependent on the time of exposure. These results are to be used as source data for Ra reactor safety analyses. [Serbo-Croat] Izlozene su osnove i prikazani su rezultati izvedenog proracuna aktivnosti tri grupe izotopa u gorivnom elementu reaktora RA sa 80% obogacenim uranom - 235. Obuhvaceni su: 1) {sup 85m}Kr, {sup 87}Kr, {sup 88}Kr, {sup 131}J, {sup 132}J, {sup 133}J, {sup 134}J, {sup 135}J, {sup 133}Xe, {sup 138}Xe i {sup 138}Cs, zatim, 2) {sup 89}Sr, {sup 90}Sr, {sup 91}Sr, {sup 92}Sr, {sup 95}Zr, {sup 97}Zr, {sup 103}Ru, {sup 105}Ru, {sup 106}Ru, {sup 129m}Te, {sup 134}Cs, {sup 137}Cs, {sup 140}Ba, {sup 144}Ce, kao i 3) {sup 238}Pu, {sup 239}Pu i {sup 240}Pu. Pretpostavljeno je da se gorivo ozracuje na srednjem fluksu neutrona, a periodicnost rada reaktora je uvazavana. Rezultati proracuna, dati u numerickom obliku, sistematizovani su kao funkcija toka vremena ozracivanja goriva. Ovi rezultati bice korisceni kao izvorni podaci kod izrade sigurnosnih analiza za reaktor RA (author)

New Instruments and Principles for the Dimensional Measurement and Measurement of Spacing of Reactor Components; Nouveaux Instruments et Procedes de Mesure des Dimensions et de l'Espacement des Elements d'un Reacteur; Novye pribory i printsipy izmereniya razmerov i raspolozheniya komponentov reaktora; Nuevos Instrumentos y Principios para Medir las Dimensiones y la Separacion Entre Componentes de Reactor

Energy Technology Data Exchange (ETDEWEB)

Mueller, P. [Institut Dr. Foerster, Reutlingen, Federal Republic of Germany (Germany)

1965-09-15

vihrevyh tokov dlja izmerenija tolshhiny listov i kontejnerov iz cvetnyh i austenitnyh metallov s pomoshh'ju perehodnyh katushek; b) metod vihrevyh tokov dlja izmerenija tolshhiny stenok trub s pomoshh'ju prohodnyh katushek. Opisyvajutsja prigodnye dlja jetogo pribory i ih primenenie. Izmerenie tolshhiny stenok uzlov reaktora iz cvetnyh metallov po 'metodu magnitnogo sharai . Ob'jasnjaetsja princip jetogo novogo vida izmerenij, oblast' ego primenenija (osobenno dlja tochechnyh izmerenij) i opisyvaetsja primenjaemyj na praktike pribor. Izmerenie materialov nemagnitnyh pokrytij na magnitnoj osnove. Ob'jasnjajutsja principy izmerenij (metody magnitnogo polja postojannogo toka i peremennogo toka) i opisyvajutsja pribory dlja izmerenija nemagnitnyh pokrytij tolshhinoj ot 3 mikron do 20 mm. Osobo rassmatrivaetsja problema otlozhenija stellita na ferritnyh stenkah korpusov reaktorov. Izmerenie pokrytij, neprovodjashhih jelektrichestvo,-na materialah iz cvetnyh metallov. Ob'jasnjaetsja princip takogo izmerenija (vihrevye toki). Opisyvaetsja pribor dlja .takih izmerenij i tipichnye primery izmerenij. Privodjatsja beskontaktnye tehnologicheskie izmerenija fizicheskih razmerov metallicheskih komponentov reaktora. Ob{sup j}asnjajutsja razlichnye metody izmerenija chernyh i cvetnyh metallov (metod magnitnogo polja postojannogo toka i peremennogo toka, metody vihrevyh tokov). Opisyvajutsja pribory i primery distancionnogo izmerenija diametra oval'nosti, iskazhenija i t.d. komponentov reaktora. Opisyvajutsja metody opredelenija raspolozhenija takih komponentov v 'gorjachej' zone reaktora. ' Opisyvaetsja pribor dlja registracii profilja poverhnosti i neposredstvennogo opredelenija haraktera nerovnosti (''Rauhtiefe'', ''Glaettungstiefe'', GLA value i RMS value). Rassmatrivajutsja tipichnye primery ispol'zovanija jetogo pribora opredelenija nerovnostej komponentov reaktora. Osoboe vnimanie udeljaetsja vozmozhnosti ispol'zovanija nebol'shogo universal'nogo datchika v ''gorjachih'' zonah i

Isotopic data to study the mechanism of the oxidation of mercaptoacetic acid; Donnees isotopiques pour l'etude du mecanisme d'oxydation de l'acide mercaptoacetique; Izotopnyj metod issledovaniya mekhanizma okisleniya merkapgouksusnoj kisloty; Estudio del mecanismo de oxidacion del acido mercaptoacetico por medio de datos obtenidos con radioisotopos

Energy Technology Data Exchange (ETDEWEB)

Gal, D [Central Isotope Laboratory, University of Szeged (Hungary); Guczi, L [Department of Radiology, Elelmiszeripari Kutato Intezet, Budapest (Hungary)

1962-03-15

comparacion de esos resultados con otros datos cineticos, se puede demostrar que la autooxidacion del acido mercaptoacetico en fase liquida constituye una reaccion en cadena ramificada, una de cuyas ramas principales es la formacion de Na{sub 2}S y su oxidacion subsiguiente. Los autores tambien comprobaron que el sulfato que aparece durante la reaccion, procede exclusivamente del sulfuro inorganico. El hierro cataliza la formacion de disulfuro organico y, por lo tanto, ejerce tambien influencia sobre la formacion del sulfuro. (author) [Russian] Mnogie issledovateli izuchali protsessy samookisleniya slozhnykh veshchestv, soderzhashchikh merkaptonovuyu gruppu, s pomoshch'yu molekulyarnogo kisloroda v zhidkoj faze. Ukazyvalos', chto vo vremya reaktsii obrazuetsya sul'fid, no do sikh por ne udavalos' opredelit' tochnogo mekhanizma ehtogo protsessa. Bylo provedeno issledovanie okisleniya merkaptouksusnoj kisloty pri 50{sup o} i pri pH = 8 kak v prisutstvii kompleksona IV, tak i v prisutstvii zheleza. V sistemu byl vveden Na{sub 2}S, mechennyj S{sup 35}, i bylo ustanovleno, chto Na{sub 2}S znachitel'no uvelichivaet skorost' zakhvata kisloroda kak pri protsesse katalizirovannym zhelezom, tak i v protsesse, svobodnom ot ionov zheleza. Vo vremya reaktsii byli izmereny kontsentratsiya sul'fida, ego udel'naya aktivnost' i obshchaya aktivnost'. Na osnovanii ehtikh dannykh i blagodarya vyrabotannomu Nejmanom i ego sotrudnikami kineticheskomu metodu izotopov, predstavilos' vozmozhnym podschitat' temp obrazovaniya sul'fida i ego dal'nejshego okisleniya. Sopostavlenie ehtikh dannykh s drugimi kineticheskimi dannymi pokazalo, chto okislenie merkaptouksusnoj kisloty v zhidkoj faze yavlyaetsya tsepnoj reaktsiej odna iz glavnykh tsepej v ehtoj reaktsii obrazuetsya posredstvom obrazovaniya Na{sub 2}S i ego dal'nejshego okisleniya. Krome togo, bylo ustanovleno, chto vo vremya reaktsii obrazuetsya sul'fat, no tol'ko cherez posredstvo neorganicheskogo sul'fida. Zhelezo katalizirovalo obrazovanie

Microbial Monitoring from the Frontlines to Space: Department of Defense Small Business Innovation Research Technology Aboard the International Space Station

Science.gov (United States)

Oubre, Cherie M.; Khodadad, Christina L.; Castro, Victoria A.; Ott, C. Mark; Flint, Stephanie; Pollack, Lawrence P.; Roman, Monserrate C.

2017-01-01

The RAZOR (trademark) EX, a quantitative Polymerase Chain Reaction (qPCR) instrument, is a portable, ruggedized unit that was designed for the Department of Defense (DoD) with its reagent chemistries traceable to a Small Business Innovation Research (SBIR) contract beginning in 2002. The PCR instrument's primary function post 9/11 was to enable frontline soldiers and first responders to detect biological threat agents and bioterrorism activities in remote locations to include field environments. With its success for DoD, the instrument has also been employed by other governmental agencies including Department of Homeland Security (DHS). The RAZOR (Trademark) EX underwent stringent testing by the vendor, as well as through the DoD, and was certified in 2005. In addition, the RAZOR (trademark) EX passed DHS security sponsored Stakeholder Panel on Agent Detection Assays (SPADA) rigorous evaluation in 2011. The identification and quantitation of microbial pathogens is necessary both on the ground as well as during spaceflight to maintain the health of astronauts and to prevent biofouling of equipment. Currently, culture-based monitoring technology has been adequate for short-term spaceflight missions but may not be robust enough to meet the requirements for long-duration missions. During a NASA-sponsored workshop in 2011, it was determined that the more traditional culture-based method should be replaced or supplemented with more robust technologies. NASA scientists began investigating innovative molecular technologies for future space exploration and as a result, PCR was recommended. Shortly after, NASA sponsored market research in 2012 to identify and review current, commercial, cutting edge PCR technologies for potential applicability to spaceflight operations. Scientists identified and extensively evaluated three candidate technologies with the potential to function in microgravity. After a thorough voice-of-the-customer trade study and extensive functional and

Active home-based cancer treatment

Directory of Open Access Journals (Sweden)

Bordonaro S

2012-06-01

Full Text Available Sebastiano Bordonaro Fabio Raiti, Annamaria Di Mari, Calogera Lopiano, Fabrizio Romano, Vitalinda Pumo, Sebastiano Rametta Giuliano, Margherita Iacono, Eleonora Lanteri, Elena Puzzo, Sebastiano Spada, Paolo TralongoUOC Medical Oncology, RAO, ASP 8 Siracusa, ItalyBackground: Active home-based treatment represents a new model of health care. Chronic treatment requires continuous access to facilities that provide cancer care, with considerable effort, particularly economic, on the part of patients and caregivers. Oral chemotherapy could be limited as a consequence of poor compliance and adherence, especially by elderly patients.Methods: We selected 30 cancer patients referred to our department and treated with oral therapy (capecitabine, vinorelbine, imatinib, sunitinib, sorafenib, temozolomide, ibandronate. This pilot study of oral therapy in the patient’s home was undertaken by a doctor and two nurses with experience in clinical oncology. The instruments used were clinical diaries recording home visits, hospital visits, need for caregiver support, and a questionnaire specially developed by the European Organization for Research and Treatment of Cancer (EORTC, known as the QLQ-C30 version 2.0, concerning the acceptability of oral treatment from the patient’s perspective.Results: This program decreased the need to access cancer facilities by 98.1%, promoted better quality of life for patients, as reflected in increased EORTC QLQ-C30 scores over time, allowing for greater adherence to oral treatment as a result of control of drug administration outside the hospital. This model has allowed treatment of patients with difficult access to care (elderly, disabled or otherwise needed caregivers that in the project represent the majority (78% of these.Conclusions: This model of active home care improves quality of life and adherence with oral therapy, reduces the need to visit the hospital, and consequently decreases the number of lost hours of work on

Linear capacity storage devices; Memoires lineaires a condensateurs; Linejnye kondensatornye nakopitel'nye ustrojstva; Dispositivos de almacenamiento de condensador, con caracteristicas lineales

Energy Technology Data Exchange (ETDEWEB)

Brovchenko, V G [Ordena Lenina Institut Atomnoj Ehnergii Imeni I.V. Kurchatova AN, SSSR (Russian Federation)

1962-04-15

nakopleniya informatsii kondensatornymi nakopitel'nymi ustrojstvami. Opisyvayutsya dve skhemy nakopitelej, rabotayushchikh linejno v bol'shom diapazone amplitud vykhodnykh signalov. V odnoj iz skhem signal oshibki izmeryaetsya differentsial'nym usilitelem. Blagodarya bol'shomu koehffitsientu usileniya usilitelya dostigaetsya vysokaya linejnost' raboty ehtogo ustrojstva. Vtoraya skhema skonstruirovana dlya raboty s impul'sami nanosekundnogo diapazona dlitel'nostej. Vkhodnye impul'sy standartnoj dlitel'nosti zapirayut pentod, v anode kotorogo raspolozhen kondensator pamyati. Tak kak zaryadka kondensatora proizvoditsya ot anodnogo pitaniya cherez generator toka, tok zaryadki ostaetsya pochti postoyannym pri izmenenii potentsiala kondensatora. Pentod imeet bol'shoe vnutrennee soprotivlenie, poehtomu posle okonchaniya vkhodnogo impul'sa tok cherez pentod pochti raven nachal'noj velichine, a zaryad, nakoplennyj kondensatorom, zapominaetsya. Dlitel'nost' pamyati informatsii ogranichena velichinami vykhodnogo soprotivleniya generatora toka i R{sub i} pentoda. Dlya uvelicheniya dlitel'nosti pamyati pered kondensatorom mozhet byt' vklyuchen diod. (author)

New apparatus for discriminating shapes - application to the study of neutron-proton elastic scattering at 14.6 MeV; Nouveau dispositif de discrimination de formes - Application a l'etude de la diffusion elastique neutron-proton a 14,6 MeV; Novyj diskriminator po forme - primenenie k izucheniyu uprugogo rasseyaniya nejtronproton s 14,6 MeV; Nuevo dispositivo para discriminacion de formas - Aplicacion al estudio de la dispersion elastica neutron-proton a 14,6 MeV

Energy Technology Data Exchange (ETDEWEB)

Crettez, J P; Cambou, F; Ambrosino, G [Laboratoire Maurice de Broglie, Paris (France)

1962-04-15

impulsions dues aux rayons {gamma} permet de deduire des spectres obtenus la variation de la section efficace differentielle de diffusion elastique en fonction de l'angle pour les neutrons de la reaction d-t. [Spanish] La vida media de los centelleos en el yoduro de cesio varia segun la naturaleza de la particula ionizante. La vida mas corta corresponde a la densidad de ionizacion mas elevada. Los autores aprovechan esta propiedad para distinguir entre si particulas que producen centelleos de amplitud analoga. El aparato descrito es un discriminador de forma de impulsos. Mide el tiempo que tarda el centelleo en pasar de su maximo a una fraccion regulable de dicha amplitud. Un convertidor de tiempo-amplitud produce un impulso cuya amplitud es proporcional al tiempo medido de este modo. La memoria compara las configuraciones de los centelleos producidos por las particulas alfa, los protones y los electrones, y presenta los resultados obtenidos. Tambien describe la aplicacion de este metodo a la medicion de los protones de retroceso que pone en movimiento un flujo de neutrones en un difusor hidrogenado de poco espesor. La supresion de los impulsos debidos a los rayos gamma permite calcular, a partir de los espectros obtenidos, la variacion de la seccion eficaz diferencial de dispersion elastica en funcion del angulo para los neutrones de la reaccion d-t. (author) [Russian] Srednyaya prodolzhitel'nost' zhizni stsintillyatsij v jodistom tsezii menyaetsya v zavisimosti ot kharaktera ioniziruyushchej chastitsy. Samoj vysokoj plotnosti ionizatsii sootvetstvuet samaya korotkaya prodolzhitel'nost' zhizni. EHto svojstvo ispol'zuetsya dlya obnaruzheniya razlichnykh chastits, dayushchikh stsintillyatsii analogichnoj amplitudy. Opisyvaemyj pribor yavlyaetsya diskriminatorom po forme. On izmeryaet vremya, zatrachivaemoe stsintillyatsiej dlya perekhoda ot svoego maksimuma do upravlyaemoj chasti ehtoj amplitudy. Vremya-amplitudnyj preobrazovatel' daet impul's, vysota kotorogo proportsional

Transition Processes in Superconducting Magnetic Systems; ПЕРЕХОДНЫЕ ПРОЦЕССЫ В СВЕРХПРОВОДЯЩИХ МАГНИТНЫХ СИСТЕМАХ

Energy Technology Data Exchange (ETDEWEB)

Sychev, V. V.; Zenkevich, V. B.; Andrianov, V. V. [Nauchno-Issledovatel' skij Institut Vysokih Temperatur, Moskva, SSSR (Russian Federation)

1966-12-15

processami, svjazannymi s perehodom chasti obmotki v normal'noe sostojanie. V svjazi s jetim programma rabot po sozdaniju sverhprovodjashhej magnitnoj sistemy MGD generatora predusmatrivala issledovanie processov, v kotoryh ukazannaja specifika projavljaetsja naibolee polno. Jeksperimenty provodilis' s nebol'shimi solenoidami. Poluchennye rezul'taty vyjavljajut nekotorye zakonomernosti processa perehoda sverhprovodjashhej obmotki v normal'noe sostojanie. Issledovany takzhe processy, svjazannye s izmeneniem toka v sverhprovodjashhem solenoide. V chastnosti, jeksperimental'no opredeljalis' zavisimost' mezhdu potokoscepleniem solenoida i tokom, ostatochnoe potokosceplenie, svjaz' mezhdu induktivnost'ju i tokom, poteri pri peremagnichivanii solenoida i dr. Rassmatrivaetsja vozmozhnost' teoreticheskogo obob- shhenija poluchennyh rezul'tatov. (author)

The Dow Ethyl Bromide Process: An Industrial Application of Radiation Chemistry; Application industrielle de la radiochimie a la production de bromure d'ethyle; Promyshlennoe primenenie radiatsionnoj khimii dlya proizvodstva ehtilbromida (metod dau); Aplicacion industrial de los efectos quimicos de las radiaciones a la produccion de bromuro de etilo

Energy Technology Data Exchange (ETDEWEB)

Harmer, D. E.; Beale, J. S.; Pumpelly, C. T.; Wilkinson, B. W. [Dow Chemical Company, Midland, MI (United States)

1963-11-15

chertezhi i fotografii proizvodstvennoj ustanovki i provedeno obsuzhdenie radiatsionnogo vykhoda. Obsuzhdayutsya opytnye dannye, poluchennye vo vremya puska i ehkspluatatsii ustanovki. (author)

Commissioning Experience from the Agesta Nuclear Power Plant; Experience acquise lors des essais de mise en service de la centrale nucleaire d'Agesta; Opyt po vvedeniyu v ehkspluatatsiyu yadernoj ehnergeticheskoj ustanovki Agesta; Experiencia adquirida con la puesta en marcha de la central nucleoelectrica de Agesta

Energy Technology Data Exchange (ETDEWEB)

Rydell, N. [Aagesta Kraftvarmewerk, Farsta (Sweden)

1963-10-15

The Agesta Nuclear Power Plant is a pressurized heavy water reactor of the pressure vessel type, fuelled with natural uranium. It was commissioned with light water from December 1962 to May 1963. Observations of a more general interest were made during this commissioning essentially on the following topics; (a) cleanliness of primary circuit (b) valve operation (c) pressurization of the primary circuit (d) water leakage (e) refuelling machinery (f) containment testing. (author) [French] Il s'agit d'un reacteur a uranium naturel et a eau lourde pressurisee, du type a caisson sous pression. Les essais de mise en service ont ete faits avec de l'eau ordinaire, de decembre 1962 a mai 1963. La mise en service a permis de faire des observations d'interet general sur les sujets suivants: a) non-contamination du circuit primaire; b) fonctionnement des vannes; c) maintien sous pression du circuit primaire; d) fuites d'eau; e) appareils de chargement du combustible; f) essais d'isolement. (author) [Spanish] La central nucleoelectrica de Agesta posee un reactor de agua pesada del tipo de recipiente de presion, con combustible de uranio natural. Se mantuvo en funcionamiento con agua ligera entre diciembre de 1962 y mayo de 1963. Durante esta prueba, se efectuaron observaciones de interes mas general, relacionadas esencialmente con las siguientes cuestiones: a) limpieza del circuito primario; b) funcionamiento de las valvulas; c) presion del circuito primario; d) perdidas de agua; e) dosposiciones de reposicion del Combustible; f) ensayos de confinamiento. (author) [Russian] Yadernaya ehnergeticheskaya ustanovka Agesta predstavlyaet soboj tyazhelovodnyj reaktor pod davleniem, ispol'zuyushchij prirodnyj uran v kachestve topliva. Reaktor byl vveden v ehkspluatatsiyu na obychnoj vode v period s dekabrya 1962 goda po maj 1963 goda. Zamechaniya bolee obshchego kharaktera byli sdelany vo vremya ehkspluatatsii v osnovnom po sledukhshchim temam: a) chistota pervichnogo kontura; b

Self-adaptive treatment of time dependent nonlinear nonhomogeneous radial heat flow in reactor components with boundary element method; Samoadaptivno obravnanje spemenljivega nelinearnega nehomogenoga radialnega topltnega toka v reaktorskih komponentah z metodo robnih elementov

Energy Technology Data Exchange (ETDEWEB)

Sarler, B; Alujevic, A [Univerza B. Kardelja, Institut ' Jozef Stefan' , Ljubljana (Yugoslavia)

1988-07-01

The basic principles of self-adaptive algorithm for treatment of transient nonlinear nonhomogeneous radial heat flow, based on direct Boundary Element method formulation, are presented. The indicators of discretization error are developed, together with binary-tree strategy for manipulation with time domain mesh, assuring automatic optimisation of calculation procedure with respect to predetermined error. The developed method is particularly suitable for use in a spectrum of extremely nonlinear cases, occurring in thermal analyses of reactor components.(author)

Use of the Neutron Die-Away Technique to Test Control Rod Effectiveness Theories; Emploi de la Methode d'Absorption des Neutrons pour Verifier les Theories sur l'Efficacite des Barres de Commande; Ispol'zovanie metoda spada potoka nejtronov dlya proverki teorij ehffektivnosti reguliruyushchikh sterzhnej; Aplicacion de la Tecnica de Extincion Neutronica a la Verificacion de las Teorias sobre la Eficacia de las Barras de Control

Energy Technology Data Exchange (ETDEWEB)

Perez, R. B. [University of Florida, Gainesville, FL (United States); De Saussure, G.; Silver, E. G. [University of Florida, Gainesville, FL (United States); Oak Ridge National Laboratory, Oak Ridge, TN (United States)

1964-04-15

actualmente determinaciones con barras de dimensiones intermedias, a fin de averiguar el limite de aplicacion de la teoria de la difusion. (author) [Russian] Raschety jeffektivnosti regulirujushhih sterzhnej uslozhnjajutsja ih zavisimost'ju kak ot raspredelenija jenergij nejtronov, tak m ot geometrii sborki. Pri sravnenii teoreticheskih dannyh s rezul'tatami jeksperimentov, provedennyh na reaktorah ili kriticheskih sistemah, voznikajut trudnosti, svjazannye s vnutrennej slozhnost'ju takih sistem. Metod spada potoka nejtronov pozvoljaet poluchit' model' vseh teplovyh nejtronov, v kotoroj raspredelenie jenergii nejtronov mozhet byt' otdeleno ot prostranstvennyh jeffektov. Pojetomu geometricheskij faktor jeffektivnosti regulirujushhego sterzhnja mozhet byt' izuchen bez ucheta detalej nejtronnogo spektra, a rezul'taty mogut byt' sravneny s rezul'tatami chistoj prostoj jeksperimental'noj ustanovki. Metod osnovan na tom fakte, chto v jeksperimente s zamiraniem nejtronov, kak on zdes' opisan, laplasian sborki svjazan s postojannoj raspada osnovnogo vida po formuljo: B{sup 2} = ({lambda} - {lambda}{sub a})/D {lambda}{sub a} gde Ha-obratnyj poluperiod nejtronov v zamedlitele (sek-1 ); D- postojannaja diffuzii (sm2 'sek-1 ). V zamedljajushhih sborkah, ispol'zuemyh dlja jetih jeksperimentov, imelis' prjamougol'nye berillievye prizmy razlichnyh razmerov, sostavlennye iz nebol'shih (7,3 h 7,3 h 5,24 sm) blokov. Ispol'zovalis' tri vida kadmievyh regulirujushhih sterzhnej: tonkie diametrom 0,476sm, krestoobraznye i polye ''tolstye'' sterzhni secheniem 7,3 X 7,3sm. Byli provereny sledujushhie teoreticheskie shemy: 1) Nordhejma -Skalettara; 2) Hurvitca-Roe; 3) Cifrovoj hod diffuzii. Jeffekt krestoobraznogo poglotitelja byl raschitan s pomoshh'ju metoda konformnogo preobrazovanija Hurvitca-Roe. Dlja laplasiana bylo polucheno znachenie 0,0188sm{sup -2}, chto sravnimo s jeksperimental'nymi rezul'tatami, sostavivshimi 0,0187 {+-} 0,0006 cm{sup -2}. Znachenija, poluchennye dlja tolstyh sterzhnej s

Neutron Tests at the Start-Up of EDF1; Les essais neutroniques au demarrage du reacteur EDF1; Nejtronnye izmereniya pri puske reaktora EDF1; Ensayos neutronicos efectuados durante la puesta en marcha del reactor EDF1

Energy Technology Data Exchange (ETDEWEB)

Teste du Bailler, A. [Centre d' Etudes Nucleaires de Saclay (France); Janin, R. [Electricite de France, Paris (France)

1963-10-15

ehksperimental'nykh metodov, razrabotannykh na reaktorakh v Markule, byla provedena vo vremya puska reaktora EDF.1. Izmereniya kasalis' glavnym obrazom ehffektivnosti upravlyayushchikh sterzhnej pri razlichnykh p ogruzh eniyakh. Opredelyaetsya skhema pod''ema s terzhnej, kotoraya pozvolyaet poluchat' polnuyu moshchnost' prk soblyudenii opredelennykh ogranichenij v temperature obolochek i gaza. Parallel'no byli provedeny izmereniya potoka pri razlichnykh polozheniyakh kompensiruyushchikh sterzhnej i pri razlichnykh zagruzkakh poglotitelej v opredelennykh kanalakh, v zavisimosti ot predvaritel'nykh raschetov v dvukhraehmernom izmerenii. Ehti izmereniya byli polucheny putem aktivatsii tochechnykh detektorov s primeneniem obychnogo metoda otravleniya vozdukha. Pri nekotorykh urovnyakh temperatury (do 140{sup o}C) byli provedeny izmereniya koehffitsientov reaktivnosti i ehffektivnosti reguliruyushchikh sterzhnej. V to zhe vremya putem aktivatsii sootvetstvuyushchikh detektorov (uran, plutonij, lyutetsij, marganets, indij, zoloto) byli provedeny izmereniya koehffitsientov spektra. Dlya izmereniya ehffektivnosti nekotorykh kompensiruyushchikh sterzhnej byl ispol'zovan ostsillyatsionnyj metod. Nakonets, s tselyakh izucheniya zashchity i povrezhdeniya grafita byli provedeny izmereniya potoka bystrykh nejtronov. (author)

16-channel analyser with high time-resolution for multiple coincidence experiments; Selecteur a 16 canaux a temps de resolution eleve pour experiences de coincidences multiples; Ispol'zovanie shestiadtsatikanal'nogo analizatora s bol'shoj razreshayushchej sposobnost'yu po vremeni dlya opytov s mnogokratnymi sovpadeniyami; Analizador de 16 canales de elevado poder temporal de resolucion para experimentos de coincidencias multiples

Energy Technology Data Exchange (ETDEWEB)

Brandt, B; Cappeller, U [University of Marburg, Marburg, Federal Republic of Germany (Germany)

1962-04-15

promezhutki vremeni posle narastaniya issleduemogo impul'sa. Opisyvaetsya shestikanal'nyj amplitudnyj analizator impul'sov, pozvolyayushchij proizvodit' signaly amplitudy impul'sa cherez 2,5 x 10{sup -6} sekundy posle narastaniya impul'sa s predelom pogreshnosti menee, chem {+-} 2 x 10{sup -8} sekundy. Vremya razresheniya ne prevyshaet 5 x 10{sup -6} sekund; vo izbezhanie iskazheniya v rezul'tate nakopleniya impul'sov ehto vremya reguliruetsya kontrol'nym konturom. SHirina kanala reguliruetsya usilitelem s oknom, kotoryj mozhet regulirovat'sya v intervale ot 1 v do 7 v. Vysota kanala mozhet vybirat'sya cherez kazhdye 0,5 v v intervale ot 7 v do 103 v. (author)

Equivalent CTOD concept based on the local approach and its application to fracture performance evaluation of welded joints; Local approach ni motozuku toka CTOD gainen no teian to tsugite hakai seino hyoka eno oyo

Energy Technology Data Exchange (ETDEWEB)

Ohata, M.; Minami, F.; Toyoda, M. [Osaka University, Osaka (Japan). Faculty of Engineering; Tanaka, T.; Arimochi, K. [Sumitomo Metal Industries, Ltd., Osaka (Japan); Glover, A. [Nova Gas Transmission Ltd., Calgary (Canada); North, T. [University of Toronto (Canada)

1996-12-31

A proposal was given on an equivalent crack tip opening displacement (CTOD) concept which relates quantitatively fracture performance of a structural member with the result of a three-point bending CTOD test via the Weibull stress based on a local approach. The equivalent CTOD is defined as a CTOD in which a three-point CTOD test piece and a structural member provide the same Weibull stress. Experimental and analytical discussions were performed on X80 steel welded joints. Effectiveness of the equivalent CTOD concept was verified from the fact that the fracture performance in welded joints with a large width estimated from the result of the three-point bending CTOD test using the equivalent CTOD concept showed good correspondence with the fracture performance obtained in the experiments. On the other hand, the result of estimation using the conventional CTOD concept is considerably smaller than measurements. As an application of the equivalent CTOD concept, a new determination procedure was introduced on required fracture tenacity to ensure deformation performance required on structural elements. The required CTOD value shows a trend that the smaller the ratio of yield stress of the welded metals to that in the base material, the greater the required CTOD grows. 16 refs., 19 figs., 3 tabs.

Equivalent CTOD concept based on the local approach and its application to fracture performance evaluation of welded joints; Local approach ni motozuku toka CTOD gainen no teian to tsugite hakai seino hyoka eno oyo

Energy Technology Data Exchange (ETDEWEB)

Ohata, M; Minami, F; Toyoda, M [Osaka University, Osaka (Japan). Faculty of Engineering; Tanaka, T; Arimochi, K [Sumitomo Metal Industries, Ltd., Osaka (Japan); Glover, A [Nova Gas Transmission Ltd., Calgary (Canada); North, T [University of Toronto (Canada)

1997-12-31

A proposal was given on an equivalent crack tip opening displacement (CTOD) concept which relates quantitatively fracture performance of a structural member with the result of a three-point bending CTOD test via the Weibull stress based on a local approach. The equivalent CTOD is defined as a CTOD in which a three-point CTOD test piece and a structural member provide the same Weibull stress. Experimental and analytical discussions were performed on X80 steel welded joints. Effectiveness of the equivalent CTOD concept was verified from the fact that the fracture performance in welded joints with a large width estimated from the result of the three-point bending CTOD test using the equivalent CTOD concept showed good correspondence with the fracture performance obtained in the experiments. On the other hand, the result of estimation using the conventional CTOD concept is considerably smaller than measurements. As an application of the equivalent CTOD concept, a new determination procedure was introduced on required fracture tenacity to ensure deformation performance required on structural elements. The required CTOD value shows a trend that the smaller the ratio of yield stress of the welded metals to that in the base material, the greater the required CTOD grows. 16 refs., 19 figs., 3 tabs.

POCHVENNICHESTVO IN RUSSIAN LITERATURE: THE METAPHOR AS IDEOLOGEME

Directory of Open Access Journals (Sweden)

Vladimir Nikolaevich Zakharov

2012-11-01

Full Text Available Original as it was, the phenomenon of pochvennichestvo (roughly translated as «native soil» in Russian thought and literature is often accompanied by a number of myths, misperceptions and erroneous commonplaces. It is not infrequent that those who never shared the ideas of pochvennichestvo are described as its adepts, and those who did, are often misquoted, with some notions, ideas and phrases misattributed to them. The ideological and literary agenda of pochvennichestvo was formed by the Vremya (1861-1863 and Epokha (1864-1865 magazines published by the brothers Dostoevsky — Fedor and Mikhail. Their outlook and vigorous action, discussions of submitted articles at board meetings, polemics with other periodicals — all of these factors contributed to the general trend of pochvennichestvo with its typical mutual influence of all its members. Fedor Dostoevsky's role on its development was decisive, as he kept consistently substantiating ideas which were new for Russian literature. Our article analyses the pochva (soil metaphor in the ideology of new school of literature and political movements which Dostoevsky helped set up in 1860s-1870s. According to him, pochva includes everything that gives birth and unites: people, homeland, native language and mother earth. They are all linked together by the mystery of Russia as the keeper of Orthodox faith and Christ as the «ideal of the people». One has to reunite with the pochva by becoming one with the people and strive to see all estates united. To be a pochvennik meant to love Russia and its people, to be a Russian and identify as one, to follow the faith of the fathers and honour the native land. In the 20th century, pochvennichestvo resolved the old argument between the Westernizers and Slavophiles. The word pochvennik was applied to the authors who stayed loyal to Russian traditional values, rural communities and traditions of Russian literature. Various authors and critics have been

Mean pulmonary sup 99m Tc-pertechnetate passage time. Its correlation with hemodynamic parameters in primary and secondary pulmonary hypertension. Srednee vremya prokhozhdeniya sup 99m Tc-pertekhnetata po legkim - korrelyatsiya s pokazatelyami gemodinamiki pri pervichnoj i vtorichnoj legochnoj gipertenzii

Energy Technology Data Exchange (ETDEWEB)

Sinitsyn, V E; Sergienko, V B; Ostroumov, E N; Mareev, V Yu

1991-11-01

Diagnostic value of mean pulmonary {sup 99m}Tc-pertechnetate passage time was studied in 27 patients with different types of hypertension disturbances. It was shown that the parameters of mean indicator passage time can be used for noninvasive determination of diastolic pressure in pulmonary artery.

Change of the equivalent circuit constants accompanied by the degradation and recovery of efficiency on a-Si solar cells; A-Si taiyo denchi no koritsu no rekka to kaifuku ni tomonau toka kairo teisu no henka

Energy Technology Data Exchange (ETDEWEB)

Takahisa, K; Kojima, T; Nakamura, K; Koyanagi, T; Yanagisawa, T [Electrotechnical Laboratory, Tsukuba (Japan)

1997-11-25

Investigations were given on how the equivalent circuit constants change when efficiency of amorphous silicon solar cells changes with time in light degradation and temperature recovery. In the experiment, light irradiation tests under a constant temperature and light intensity condition, followed by recovery tests under a constant temperature and constant weak light intensity or constant temperature condition were repeated continuously. According to the result of an experiment on single layer type cells, the change in each equivalent circuit constant in association with degradation in efficiency and file factor and variation in recovery is reversible mostly. However, a slightly irreversible component was recognized only in the initial degradation process in series resistance and diode factor values. With regard to stacked cells, it was suggested that the main players to determine cell characteristics during the processes of deterioration and recovery take turns among the three layers as follows: the shape of the time-based change in the efficiency comes different and is not saturating; as the efficiency decreases, the extent of the change increases in the diode factor and series resistance; and the path the deterioration takes differs from that the recovery takes. 2 refs., 12 figs.

Interferences in an information circuit of relay protection and automatics with convergence with a line powering a direct current micromotor. Pomekhi v informatsionnoy tsepi releynoy zashchity i avtomatiki pri sblizhenii s liniey, pitayushchey mikrodvigatel postoyannogo toka

Energy Technology Data Exchange (ETDEWEB)

Azarov, V.S.; Yarnykh, L.V.

1982-01-01

The possibility is examined of development of interferences in information circuits of RP and AP with their convergence with lines powering micromotors used in control circuits. It is indicated that with start-up of the micromotors in the information circuits, adjustments can be made which exceed in level and duration the operating signal. Results are presented of experimental measurements and interferences in the circuit of block signalling of the EPP. A technique is obtained for calculating the developed interferences.

Post-Construction Testing of the Elk River, Hallam and Piqua Power Reactor Plants; Essais apres construction des centrales nucleaires d'Elk River, de Hallam et de Piqua; Predehkspluatatsionnoe ispytanie Ehlk-riverskoj, Khehlpemskoj i Pikuaskoj ehnergeticheskikh reaktornykh ustanovok; Ensayos posteriores a la construccion de las centrales nucleoelectricas de Elk River, Hallam y Piqua

Energy Technology Data Exchange (ETDEWEB)

Pursel, C. A. [United States Atomic Energy Commission, Argonne, IL (United States)

1963-10-15

defectos hallados: Reactor de Elk River. Se descubrieron grietas en parte del revestimiento superficial del recipiente del reactor; ello obligo a efectuar una serie de investigaciones y analisis, asi como ciertas reparaciones y modificaciones del recipiente. La insuficiente capacidad de separacion de vapor obligo a sustituir y modificar algunas piezas metalicas en el interior del recipiente del reactor. Central nucleoelectrica de Hallam. Debido al arrastre de helio, hubo que modificar los circuitos secundarios de sodio. La falla de un tubo del intercambiador de calor intermedio (sodio-sodio) obligo a llevar a cabo una serie de analisis para descubrir su causa y extraer y reparar el intercambiador. Central nucleoelectrica de Piqua. Durante la limpieza de las tuberias con agentes quimicos, se dallaron varias valvulas que fue preciso reparar o sustituir. Las fugas en el circuito del refrigerante organico y del vapor secundario provocaron demoras repetidas. Una vez concluidas las reparaciones e introducidas las modificaciones necesarias, se comprobo que las caracteristicas de rendimiento reales de cada uno de los tres reactores se ajustaban estrictamente a las previstas en el proyecto. (author) [Russian] Fakticheskij opyt, nakoplennyj vo vremya predehkspluatatsionnykh ispytanij trekh yadernykh ehnergeticheskikh ustanovok, postroennykh po demonstratsionnoj programme ehnergeticheskikh reaktorov Komissii po atomnoj ehnergii Soedinennykh Shtatov, pozvolyaet sdelat' nekotorye obobshcheniya v otnoshenii ehtoj fazy stroitel'stva i ehkspluatatsii ustanovok. Tri ustanovki, a imenno Ehlk-riverskij reaktor (ERR), Khehllemskaya yadernaya ehnergeticheskaya ustanovka (HNPF) i Pikuaskaya yadernaya ehnergeticheskaya ustanovka (PNPF), predstavlyayut tri razlichnykh tipa reaktorov: reaktor s kipyashej vodoj s estestvennoj tsirkulyatsiej, natrievo-grafitovyj reaktor i reaktor s organicheskim teplonositelem i zamedlitelem sootvetstvenno. Period predehkspluatatsionnykh ispytanij okhvatyvaet vremya

Detection of shear-wave traveltime delay by using wavelet transform and characterization of an artificial subsurface fracture; Wavelet henkan ni yoru toka S ha denpa jikan henka no koseido kenshutsu to jinko chika kiretsu no seijo hyoka

Energy Technology Data Exchange (ETDEWEB)

Tanaka, K; Moriya, H; Asanuma, H; Niitsuma, H [Tohoku University, Sendai (Japan)

1997-05-27

As characterization of artificial cracks formed underground by using the water pressure fracturing method, experiments have been carried out to detect relationship of pressurization and S-wave propagation time with the polarizing direction dependence. Openings are created when pressure in the vicinity of the artificial cracks increases greater than reopening pressure of micro cracks. Elastic wave velocity decreases in this region because of water in the opened micro cracks. Anisotropy is created in the S-wave propagation velocity due to influence from anisotropic reopening region when the artificial cracks are pressurized, and is separated into two components which polarize orthogonally with each other (micro splitting). Field experiments conducted at the Higashi-hachimantai field were analyzed by using wavelet transform. It was possible to detect the S-wave arrival time at high accuracy, and the arrival of an orthogonally polarized wave was observed in 0.03 to 0.11 ms after the arrival of the S-wave. Possibility was indicated on separation of the two components in the orthogonally polarized wave of the S-wave if the micro splitting is used. If this mechanism is elucidated, it may be possible to extract information on cracking systems (direction of micro crack orientation and crack density). 8 refs., 10 figs.

High-voltage-powered transistorized preamplifier; Pre-amplificateur transistorise avec alimentation haute tension; Vysokovol'tnyj ehnergeticheskij predvaritel'nyj usilitel' na tranzistorakh; Preamplificador transistorizado alimentado con alta tension

Energy Technology Data Exchange (ETDEWEB)

Wilson, Jr, W E; Wakefield, A W [University of Washington, Seattle, WA (United States)

1962-04-15

perekhodom p-n-p uvelichilo edinichnyj tolchok napryazheniya v dinamicheskom diapazone ot 1 millivol'ta do 5 vol't. Stabilizatsiya rabochego napryazheniya dlya skhemy ehmitternogo vykhoda obespechivaetsya nebol'shim zenerovskim diodom. Potreblenie toka tipichnym distantsionnym stsintillyatsionnym detektorom, v kotorom primenena dannaya skhema, kolebletsya ot 0,35 do 0,65 milliamper, v to vremya, kak vysokoe napryazhenie, podavaemoe na stsintillyatsionnyj detektor, izmenyaetsya ot 800 do 1500 vol't. Pribor obsluzhivaet 500 futov koaksial'noj linii v 52 oma s poterej 25-protsentov amplitudy impul'sa; on ispol'zovalsya s distantsionnymi detektorami stsintillyatsionnogo tipa i s nejtronnymi detektorami tipa BF{sub 3} s otlichnymi rezul'tatami. (author)

Radioisotope Power Sources; Sources d'energie utilisant les radiobotopes; Radioizotopnye istochniki ehnergii; Fuentes radio isotopicas de energia

Energy Technology Data Exchange (ETDEWEB)

Culwell, J. P. [USAEC, Washington, D.C (United States)

1963-11-15

, obychno ispuskayut al'fa- ili beta-luchi. Al'fa-izluchateli kak toplivo predstavlyayut bol'shuyu tsennost', no oni stoyat doroge i v to zhe vremya menee dostupny, chem beta-izluchateli, poehtomu ikh, kak pravilo, ispol'zuyut dlya kosmicheskikh zadach. Beta-goryuchee, vydelennoe iz otkhodov reaktora, v nastoyashchee vremya primenyaetsya isklyuchitel'no dlya nazemnykh ili morskikh tselej. Odnako sleduet ozhidat', chto takie beta-izluchateli, kak strontsij-90, v kontse kontsov budut primenyat'sya i v kosmose. V nastoyashchee vremya vedutsya issledovatel'skie raboty s generatorami, v kotorykh v kachestve goryuchego budut primenyat' smeshannye produkty deleniya. Ehto goryuchee budet deshevle, chem chistye radioizotopy, poskol'ku sokratyatsya zatraty na razdelenie izotopov i na ikh ochistku. Prototipom termoehlektri- cheskikh generatorov, pitaemykh strontsiem-90 i tseziem-137, yavlyayutsya uzhe funktsionirujte ili razrabatyvaemye generatory na meteorologicheskikh stantsiyakh, v navigatsii i v glubokovodnykh ustrojstvakh obnaruzheniya. Termoehlektricheskim generatorom, rabotayushchim na plutonii-238, osnashchen iskustvennyj sputnik ''Tranzit'', razrabotannyj voennomorskim vedomstvom SSHA. Razrabatyvayutsya generatory dlya ispol'zovaniya v kosmose Upravleniem po natsional'noj aehronavtike i issledovaniyu kosmicheskogo prostranstva. Vysokaya aktivnost' radioizotopnykh istochnikov ehnergii trebuet, chtoby voprosam bezopasnosti bylo udeleno osoboe vnimanie. Sleduet ustanovit' strogij kontrol' za soblyudeniem tekhniki bezopasnosti i provesti ryad shirokikh ispytanij, chtoby udostoverit'sya, chto radioaktivnye sistemy mogut funktsionirovat', ne nanosya ushcherba okruzhayushchim. (author)

Mobilization and attenuation of metals downstream from a base-metal mining site in the Matra Mountains, northeastern Hungary

Science.gov (United States)

Odor, L.; Wanty, R.B.; Horvath, I.; Fugedi, U.; ,

1999-01-01

Regional geochemical baseline values have been established for Hungary by the use of low-density stream-sediment surveys of flood-plain deposits of large drainage basins and of the fine fraction of stream sediments. The baseline values and anomaly thresholds thus produced helped to evaluate the importance of high toxic element concentrations found in soils in a valley downstream of a polymetallic vein-type base-metal mine. Erosion of the mine dumps and flotation dump, losses of metals during filtering, storage and transportation, human neglects, and operational breakdowns, have all contributed to the contamination of a small catchment basin in a procession of releases of solid waste. The sulfide-rich waste material weathers to a yellow color; this layer of 'yellow sand' blankets a narrow strip of the floodplain of Toka Creek in the valley near the town of Gyongyosoroszi. Contamination was spread out in the valley by floods. Metals present in the yellow sand include Pb, As, Cd, Cu, Zn, and Sb. Exposure of the local population to these metals may occur through inhalation of airborne particulates or by ingestion of these metals that are taken up by crops grown in the valley. To evaluate the areal extent and depth of the contamination, active stream sediment, flood-plain deposits, lake or reservoir sediments, soils, and surface water were sampled along the erosion pathways downstream of the mine and dumps. The flood-plain profile was sampled in detail to see the vertical distribution of elements and to relate the metal concentrations to the sedimentation and contamination histories of the flood plain. Downward migration of mobile Zn and Cd from the contaminated upper layers under supergene conditions is observed, while vertical migration of Pb, As, Hg and Sb appears to be insignificant. Soil profiles of 137Cs which originated from above-ground atomic bomb tests and the Chernobyl accident, provide good evidence that the upper 30-40 cm of the flood-plain sections, which

Attempt to measure the temperature, pressure and particle velocity of pyrocastic surge with penetrator-type gauge. ; Airdropping experiment at Unzen volcano. Penetrator hoshiki ni yoru kasai surge no ondo, atsuryoku, ryushi sokudo sokutei no kokoromi. ; Unzendake ni okeru toka jikken

Energy Technology Data Exchange (ETDEWEB)

Taniguchi, H. (Science Education Institute of Osaka Prefecture, Osaka (Japan)); Kamata, K.; Sange, K. (Kobe University, Kobe (Japan). Faculty of Science); Nakada, S. (Kyushu University, Fukuoka (Japan). Faculty of Science); Kamata, H. (Geological Survey of Japan, Osaka Office, Osaka (Japan))

1992-08-01

This paper describes development of a penetrator intended of measuring temperatures, pressures, and particle velocities of air blasts and pyroclastic surges occurring in volcanos, and its airdropping experiment. This device forms a spear with a total length of 150 cm to 160 cm disposed with wings at the tail, and a stopper to prevent the spear from penetrating into ground deeper than 60 cm. The device for measuring temperatures suspends metal pieces of 16 kinds in total including such metals as lead and tin, and such alloys as eutectic solders and type lead to enable measuring a temperature range from 100[degree]C to 810[degree]C . The device for measuring pressures consists of a square pipe with a length little shorter than one meter, twisted to 22.5[degree] at three locations, each of the 16 faces made from the twisting being attached with two blast meters (using lead and copper foils, serving also as particle velocity meters). Twelve prototype devices have been dropped (not having been recovered yet) on five points of the east side slope of Mt. Unzen using a helicopter. 5 refs., 3 figs.

Multichannel time-analyser with an electrostatic memory tube; Analyseur en temps a plusieurs canaux, avec memoire a potentioscopes; Mnogokanal'nye vremennye analizatory s pamyat'yu na potentsialoskopakh; Analizador multicanal de tiempo con tubo de memoria electrostatico

Energy Technology Data Exchange (ETDEWEB)

Ignat' ev, K G; Kirpichnikov, I V; Sukhoruchkin, S I

1962-04-15

forma de graficos y de datos numericos en fichas perforadas. (author) [Russian] V ITEHF AN SSSR byli so z d a ny dva mnogokanal'nykh vremennykh analizatora impul'sov s ''pamyat'yu'' na potentsialoskopakh JIH-4. V nastoyashchee vremya oni ISPOL'ZUYUTSYA V razlichnykh izmereniyakh i imeyut sleduyushchie kharakteristiki: chislo kanalov - 1024 i 2048; vremennaya shirina kanalov ot 0,2 mksek. i bol'she; emkost' kanalov - 4096 imp i 1024 imp; chastota zapuska analizatoroa do 1000 raz v sek; velichina zagruzki do 1000 imp/sek. Rezul'taty izmerenij vydayutsya analizatorami v vide grafikov i chislovykh dannykh na perfokartakh. (author)

Analiza uticaja armiranobetonskog rama od sopstvenog opterećenja i spoljašnjih sila/Structural analysis of a prestressed concrete

Directory of Open Access Journals (Sweden)

Miloš Z. Petrović

2014-10-01

Full Text Available U radu je prikazano delovanje sile prednaprezanja na armiranobetonski ram (u daljem tekstu AB ram. Posmatrani sistem je statički neodređen sa dva ukleštenja. Na njega deluje opterećenje prednaprezanje kablom silom Nk=600 kN, kao i sopstveno opterećenje. Visina rama je 6.00 m, a osovinski razmak 20.00 m. Opterećenje od sopstvene težine elemenata je od rigle i stuba. Opterećenje konstrukcije usled prednaprezanja spada u unutrašnja opterećenja, koja zamenjujemo ekvivalentnim opterećenjem koje predstavlja spoljašnje opterećenje. Proračun je izvršen metodom sila i metodom deformacija, kao i u softverskom programu 'Tower'. Metodom sila se uklanja ukleštenje i preseku se omogućava obrtanje. Statički neodređena veličina tada je moment ukleštenja. Kod metode deformacije sve statičke i deformacijske veličine izražavaju se putem izvesnog broja međusobno nezavisnih deformacijskih veličina, koje su određene iz uslova ravnoteže sistema. Broj nezavisnih deformacijskih neodređenih veličina predstavlja deformacijsku neodređenost nosača. Sve deformacijski neodređene veličine mogu se svrstati u dve grupe: prvu grupu čine uglovi obrtanja na krajevima kruto vezanih štapova, a drugu grupu komponente pomeranja čvorova. / The effects of prestressing forces on a reinforced concrete frame are shown in the paper. The structure is a statically indeterminate frame with two fixed supports. The load is due to tendon prestressing with Nk = 600 kN and due to self-weight of columns and beam. The columns height is 6.00 m and the beam span is 20.00 m. Effects of prestressing can be replaced by an external equivalent load. Calculations are performed by the force method, by the direct stiffness method and using the 'Tower' software. The rotational restraints are released at fixed supports and the restraint moments are calculated by the force method. The direct stiffness method uses the members' stiffness relations for computing member forces and

Porównanie stężeń tlenku azotu w powietrzu wydychanym i pH kondensatu powietrza wydychanego u dzieci chorych na astmę i zdrowych

Directory of Open Access Journals (Sweden)

Bolesław Kalicki

2009-12-01

Full Text Available Istotą astmy jest proces zapalny toczący się w śluzówce drzewa oskrzelowego. Parametry oceniające nasilenie tego procesu stosowane do tej pory są mało obiektywne i trudne do uzyskania, zwłaszcza u dzieci. Możliwość rzetelnej oceny intensywności tego procesu wpłynęłaby na dokładniejszą diagnozę pacjenta i zobiektywizowałaby postępowanie lecznicze. W ostatnim okresie ukazało się wiele prac poświęconych poszukiwaniu takich narzędzi, które w łatwy, nieinwazyjny i tani sposób odzwierciedlą stan zapalny w układzie oddechowym. Za jeden z takich wykładników uznawany jest pomiar stężenia tlenku azotu (NO w wydychanym powietrzu. Jego stężenie zależy od aktywności iNOS – enzymu aktywowanego między innymi przez czynniki zapalne. Oznacza się go metodami chemiluminescencyjnymi. Wzrost stężenia sugeruje nasilenie zapalenia oskrzeli. Innym markerem stanu zapalnego branym pod uwagę w wielu badaniach jest pH kondensatu powietrza wydychanego (KPW, który jest pochodną płynu pokrywającego powierzchnię pęcherzyków płucnych. Spośród wielu substancji w nim rozpuszczonych oznaczanie jego pH jest najłatwiejszą metodą analizy KPW. Zauważono, że pH tego płynu spada w chorobach przebiegających z nasileniem stanu zapalnego w płucach. Obie wymienione metody są stosunkowo tanie i proste do zastosowania (również w populacji dziecięcej. Celem niniejszego badania była ocena stężeń NO w powietrzu wydychanym i pH KPW u dzieci z rozpoznaną astmą w okresie zaostrzenia choroby i porównanie tych wyników z wartościami uzyskanymi w grupie dzieci zdrowych. Do badań włączono 26 dzieci w wieku od 8 do 17 lat. Pomiędzy obiema grupami dzieci – zdrowych i chorych, uzyskano statystycznie znamienną różnicę wyników zarówno stężenia NO w powietrzu wydychanym, jak i pH KPW. W przypadku zaostrzenia astmy stężenie NO rosło, a pH KPW malało, oba parametry korelowały ze sobą. Wyniki te pozostają w zgodzie

Radiation Polymerization in the Solid Phase; Polymerisation radiochimique en phase solide; Radiatsionnaya polimerizatsiya v tverdoj faze; Radiopolimerizacion en fase solida

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Barkalov, I. M.; Gol' danskij, V. I.; Enikolopov, N. S.; Terekhova, S. F.; Trofimova, G. M.

1963-11-15

energfa de activacion, a diferencia de la postpolimerizacion lenta, que exige la misma energia de activacion que el proceso en fase liquida. (author) [Russian] Radiatsionnoj polimerizatsii tverdykh i zamorozhennykh monomerov za poslednee vremya udelyaetsya bol'shoe vnimanie. EHtot vopros predstavlyaet bol'shoj interes kak s prakticheskoj tochki zreniya, tak i s tochki zreniya novykh teorij khimicheskoj kinetikich radiatsionnoj khimii. Kak izvestno, strogaya prostranstvennaya uporyadochennost' monomernykh edinits v polimere obuslavlivaet rezkoe uluchshenie fiziko-mekhanicheskikh svojstv bez izmeneniya khimicheskogo sostava. Dlya sinteza stereoregulyarnykh polimerov ispol'zuetsya printsip matritsy, t.e. monomernaya edinitsa strogo orientiruetsya v prostranstve putem obrazovaniya kompleksa s katalizatorom ili kakim-libo drugim veshchestvom. Naprimer, pri radiatsionnoj polimerizatsii ryada monomerov, orientirovannykh v klatratnykh kompleksakh mocheviny i tiomocheviny, polucheny kristallicheskie stereopegulyarnye polimery. Odnako naibolee prostym variantom yavlyaetsya orientatsiya monomera v sobstvennoj kristallicheskoj reshetke. Khotya mnogie teoreticheskie voprosy v ehtoj oblasti ostayutsya neyasnymi, prakticheskoe ispol'zovanie ehtogo sposoba ves'ma zamanchivo. Tak, pri radiatsionnoj polimerizatsii kristallicheskogo trioksana uzhe poluchen vysokokristallicheskij polioksimetilen. Trebuetsya, odnako, dal'nejshaya teoreticheskaya razrabotka ehtogo metoda. Neobkhodimo dlya kazhdogo otdel'nogo monomera vyyasnit' vklad razlichnykh vidov reaktsij, proiskhodyashchikh pri obluchenii i posleduptsem plavlenii tverdykh monomerov (spetsificheskaya radiatsionnaya reaktsiya, postpolimerizatsiya i polimerizatsiya v tochkakh fazovykh perekhodov) v obshchuyu kartinu protsessa. Vypolnennoe v poslednee vremya v Institute khimicheskoj fiziki podrobnoe issledovanie kinetiki radiatsionnoj tverdofaznoj polimerizatsii ryada monomerov s primeneniem kalorimetricheskogo metoda i s nablyudeniem signala

Scintillation camera and positron camera; Le scintillometre photographique; Stsintillyatsionnaya kamera; La camara de centelleo

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Anger, Hal O; Rosenthal, Donald J [Lawrence Radiation Laboratory and Donner Laboratory of Biophysics and Medical Physics University of California, Berkeley, CA (United States)

1959-07-01

enfocadas simultaneamente sobre el cristal. Las senales procedentes de las celulas fotoelectricas se transmiten a un circuito contador de desviacion que reproduce los destellos sobre la pantalla de un tubo de rayos catodicos. Seguidamente esos destellos se fotografian mediante una camara normal. Los autores presentan ejemplos del poder de resolucion ya conseguido, conforme lo revelan ensayos realizados con modelos o ''maniquis'' y estudian el empleo de la camara para la representacion visual de la tiroides en la practica clinica. (author) [Russian] Daetsya kratkoe opisanie sushchestvovavshi kh ranee gammaustanovok. Rassmatrivaetsya printsip dejstviya stsintillyatsionno j kamery. V dannom sluchae lokalizatsiya stsintillyatsij, proiskhodyashchikh v ploskom aktivirovannom talliem kristalle jodistogo natriya, opredelyaetsya iz kolichestva sveta, popadayushchego na ryad foto-ehlementov, odnovremenno obsledyvayushchi kh ehtot kristall. Signaly fotoehlementov peredayutsya na otklonyayushchij schetnyj koitur, kotoryj vosproizvodit stsintillyatsii na ehkrane katodnoj trubki. Zatem oni fotografiruyuts ya obyknovennym fotoapparatom. Privodyatsya primery dostatochnoj v nastoyashchee vremya razreshayushchej sposobnosti pri ispytanii fantomov. Obsuzhdaetsya vopros o primenenii upomyanutoj kamery dlya nablyudeniya za shchitovidnoj zhelezoj pri klinicheskikh issledovaniyakh. (author)

The Performance of Major Plant Items at Calder Hall; Fonctionnement des elements principaux de la centrale de Calder Hall; Kharakteristika osnovnykh uzlov ustanovki v Kolder-Kholle; Rendimiento de los principales elementos de la central de Calder Hall

Energy Technology Data Exchange (ETDEWEB)

Desbruslais, E. L. [United Kingdom Atomic Energy Authority, Seascale, Cumberland (United Kingdom)

1963-10-15

elementos mas importantes de la central contra danos accidentales que puedan provenir de fuentes externas. Para el generador diesel de emergencia, no parece necesario prever un arranque automatico o circuitos paralelos, si bien una centralizacion no seria superflua. (author) [Russian] V techenie svyshe shesti let bol'shaya ustanovka v Kolder-Kholle ehkspluatiruetsya kak ehnergeticheskaya ustanovka s bazovoj nagruzkoj. Na nej voznikali takie khe povrezhdeniya, kak i na obychnykh ehnergeticheskikh ustanovkakh. Vse povrezhdeniya imeli mesto v obychnoj ustanovke i ni odnogo - v samikh yadernykh reaktorakh. Opyt pokazal, chto s tochki zreniya bezopasnosti reaktory i osnovnye uzly ustanovki vmeste s privodami sistemy neobkhodimo rassmatrivat' v tselom. Ne obnaruzheno nikakikh sushchestvennykh izmenenij, kotorye by davali povod dumat' o tom, chto korpus vysokogo davleniya reaktora ili grafitovyy zamedlitel' ogranichat srok ehkspluatatsii ustanovki. Asimmetrichnoe raspredelenie temperatury imeet mesto vokrug vykhodnykh gazovykh truboprovodov, i v nastoyashchee vremya ehto ogranichivaet moshchnost' reaktora. Rekomenduetsya ustanovit' vnachale dopolnitel'noe kolichestvo termopar, kontrol'no-izmeritel'nye pribory dlya opredeleniya napryazheniya i obespechit' vizual'noe nablyudenie za oblastyami vysokogo napryazheniya i temperatury. V khode normal'noj ehkspluatatsii osushiteli bol'she ne primenyayutsya, i sootvetstvenno v rezul'tate ehtogo dostignuto nebol'shoe uvelichenie moshchnosti reaktora. Dastsya rekomendatsii otnositel'no periodichnosti obsledovanij teploobmennikov, osnovnykh gazovykh truboprovodov i nizhnikh uzlov. Nebol'shoe uvelichenie v proizvodstve para dostignuto v rezul'tate umen'sheniya perepuska gaza. Nebol'shie trudnosti voznikli lish' pri ehkspluatatsii tsirkulyatorov gaza tsentrobezhnogo tipa. Otmecheno nebol'shoe snizhenie proizvodstva vnachale v rezul'tate krugovogo iskreniya kommutatorov pri vysokom napryazhenii na motorakh ventilyatorov i na generatorakh

The Radioisotopic Determination of Diffusion Coefficients and Currents in Natural Waters. Surface Collection of Radioactive Fall-Out on a Large Alpine Lake; Determination par detection nucleaire des coefficients de diffusion et des courants dans les eaux naturelles. Evolution de la surface de collection d'un grand lac alpin pour les retombees radioactives; Opredelenie koehffitsienta diffuzii i skorosti techeniya estestvennykh vod pri pomoshchi yadernogo detektirovaniya. Ehvolyutsiya poverkhnosti sbora radioaktivnykh osadkov na bol'shom al'pijskom ozere; Determinacion por deteccion nuclear de los coeficientes de difusion y de las corrientes en las aguas naturales evolucion de la superficie de captacion de un gran lago alpino para las precipitaciones radiactivas

Energy Technology Data Exchange (ETDEWEB)

Chesselet, R.; Nordemann, D. [Service d' Electronique Physique, Centre d' Etudes Nucleaires de Saclay (France); Dussart, B. [Centre de Recherches Hydrobiologiques, CNRS, Gif-sur-Yvette (France)

1963-08-15

precipitacione s radiactivas debidas a las explosiones nucleares en la atmosfera (octubre de 1961-enero de 1962). Midieron diariamente la radiactividad en muestras de agua del lago Leman tomadas a 0, 10 y 20 m de profundidad y en un colector de precipitaciones atmosfericas secas y humedas. A pesar de la complejidad del regimen de aportaciones en funcion del tiempo, la inter- pretacion de los diagramas obtenidos puede contribuir a resolver el problema del destino de los productos radiactivos en las condiciones de difusion y de corriente que reinan en la practica. La difusion de productos radiactivos en cantidad muy pequena, unida a la utilizacion de diversas tecnicas de deteccion nuclear de alta sensibilidad, permitiran obtener mas datos sobre la difusion in situ y el movimiento de las masas de aguas naturales. (author) [Russian] Na pervom ehtape avtory vyzvali diffuziyu ''in situ'' na radioaktivnom izluchatele, natrii-22, v vide Na{sup +}, s aktivnost'yu nizhe 1 millikyuri. Zakony diffuzii, primenennye v ehtom sluchae, legko pozvolyayut predvidet' skorost' ''radioaktivnogo Oblaka'' vo vremya diffuzii. Takim obrazom, registratsiya aktivnosti v zavisimosti ot vremeni, izmerennaya s pomoshch'yu dvukh nadlezhashchim obrazom raspolozhennykh gamma- detektorov, privela k otsenke koehffitsienta diffuzii dlya ispol'zuemogo izluchatelya i k izmereniyu skorosti techeniya v toj tochke, gde proizvodilos' izmerenie (v dannom sluchae ozero Leman). Na vtorom ehtape v sootvetstvii s geofizicheskim issledovaniem obshchej problemy radioaktivnogo vypadeniya, avtory ispol'zovali nakoplenie radioaktivnykh osadkov, voznikshikh v rezul'tate yadernykh ispytanij, provedennykh v atmosfere v oktyabre 1961 - yanvare 1962 g. Kazhdyj den' bralis' proby vody Lemanskogo ozera na glubinakh O, 10 i 20 m, a takzhe sukhikh i vlazhnykh atmosfernykh vypadenij. Nesmotrya na slozhnost' rezhima nakopleniya v zavisimosti ot pogody, tolkovanie poluchennoj-diagrammy mozhet sposobstvovat' razresheniyu problemy vypadeniya

Change in concentration distribution and equivalent rate constant with flow velocity in a boundary layer around a catalyst of non-uniform surface activity; Kotai shokubai taihyomen no kassei no fukin`itsusei ni motozuku kankyo sonai nodo bunpu oyobi toka hanno sokudo teisu no ryusoku ni yoru henka

Energy Technology Data Exchange (ETDEWEB)

Konno, J [National Institute for Resources and Environment, Tsukuba (Japan)

1997-09-25

In a flow system for vapor/solid catalytic reactions, there is a concentration distribution along the external catalyst surface, observed in the vicinity of the surface. Change in the reaction rate constant is followed for the case where the concentration distribution varies by flow. A 2-dimensional numerical model in which flow field and property conditions are simplified is used to analyze the change on the assumption that high-activity and low-activity sites are regularly distributed over the external catalyst surface. The transport equations for the reactants are numerically solved for given flow fields. It is found that the concentration distribution shape and equivalent reaction rate constant are almost the same as those in a stationary system at Pecret number of around 10 or lower, the concentration distribution gradually becomes uniform whereas equivalent rate constant increases as flow rate increases at Pecret number in a range from around 10 to 10{sup 6}, and they are almost constant at Pecret number beyond around 10{sup 6}. 3 refs., 11 figs., 1 tab.

Production of C{sup 14}-labelled compounds from C{sup 14}O{sub 2} accelerated in an electric field - Physico-chemical analysis of some radioactive compounds obtained; Production de composes marques au {sup 14}C a partir de {sup 14}CO{sub 2} accelere dans un champ electrique - Analyse physico-chimique de quelques composes radioactifs obtenus; Proizvodstvo mechennykh uglerodom-14 soedinenij iz C{sup 14}O{sub 2}, uskorennogo v ehlektricheskom pole - Fiziko-khimicheskij analiz neskol'kikh poluchennykh radioaktivnykh soedinenij; Obtencion de compuestos marcados con {sup 14}C a partir de {sup 14}CO{sub 2} acelerado en un campo electrico - Analisis fisicoquimico de algunos de los compuestos radiactivos obtenidos

Energy Technology Data Exchange (ETDEWEB)

Guillaume, M [Universite de Liege, Belgique (Belgium)

1962-03-15

con cadenas alifaticas (50 {mu}c/g para el acido glutarico) o con moleculas ciclicas que presenten una cadena alifatica (acido acetilsalicilico). (author) [Russian] V dannoj rabote izlagaetsya metod mecheniya, osnovannyj na uskorenii ehlektricheskim polem C{sup 14}O{sub 2}, kotoryj v ehto vremya poddaetsya vstupleniyu v reaktsiyu s organicheskoj mishen'yu, nakhodyashchejsya na ego traektorii. Opysyvaemaya razryadnaya kamera dejstvuet pod napryazheniem 500 v, 150 mka, a podlezhashchie mecheniyu organicheskie veshchestva vvodyatsya v ehto pole i nakhodyatsya tam okolo 3 chasov vmeste s CO{sub 2} udel'noj aktivnosti v 24 mkyuri/mmol'. Maksimal'nyj vykhod poluchennykh produktov ostaetsya slabym (okolo 6%), a 60% C{sup 14}O{sub 2} - razrusheno. EHtot maksimal'nyj vykhod poluchaetsya tol'ko dlya alifaticheskikh tsepej (50 mkkyuri/r dlya glutarovoj kisloty) ili dlya aromaticheskikh veshchestv, predstavlyayushchikh alifaticheskuyu tsep' (atsetilgalitsilovuyu kislotu). (author)

Use of alpha-radiation for the industrial measurement of surface weight; Utilisation du rayonnement alpha pour les mesures industrielles de poids superficiel; Primenenie al'fa-oblucheniya dlya promyshlennogo izmereniya vesa naruzhnogo pokrova; Empleo industrial de los rayos alfa para la medicion de pesos por unidad de superficie

Energy Technology Data Exchange (ETDEWEB)

Perette, J; Maugest, J [Compagnie d' Applications et Recherches Atomiques, Saint-Denis (France)

1962-01-15

los rayos alfa para llevar a cabo mediciones industriales del peso por unidad de superficie de materiales de espesor reducido. El aprovechamiento industrial de estas tecnicas pudo desarrollarse gracias al perfeccionamiento de nuevos aparatos que, si bien aplican tecnicas tradicionales, fueron especialmente disenados para el empleo de rayos alfa. Para compensar las variaciones de la capacidad de absorcion en el intervalo que media entre la fuente y el detector, es indispensable emplear un metodo diferencial de dos recorridos. La alimentacion de las camaras de ionizacion con corriente alterna permite utilizar circuitos de amplificacion y de deteccion alternos sin necesidad de transformar previamente la corriente de ionizacion. El intervalo de medicion abarca de 6 a 55 gramos por metro cuadrado, con una aproximacion del 1 por ciento en condiciones de perfecta estabilidad. Los autores describen el dispositivo completo utilizado para efectuar mediciones continuas en las maquinas industriales. La tecnica descrita puede adaptarse igualmente a los rayos beta. (author) [Russian] Vozmozhnosti ispol'zovaniya al'fa-oblucheniya dlya promyshlennogo izmereniya vesa naruzhnogo pokrova tonkikh materialov uzhe neodnokratno izlagalis'. Primenenie ehtikh metodov v promyshlennosti stalo vozmozhno blagodarya issledovaniyam, proizvedennym s pomoshch'yu novoj apparatury, kotoraya naryadu s ispol'zovaniem ee v obychnykh usloviyakh spetsial'no prisposoblena dlya primeneniya al'fa-oblucheniya. Primenenie differentsial'nogo metoda s dvumya kanalami neobkhodimo dlya uravnoveshivaniya kolebanij, kotorye mogut byt' pogloshcheny rasstoyaniem mezhdu istochnikom i detektorom. Peremennoe snabzhenie ionizatsionnykh kamer pozvolyaet ispol'zovat' pere- mennye usilitel'nye kontury i provodit' obnaruzhenie bez predvaritel'nogo prevrashcheniya ionizatsionnogo toka. Izmerenie provoditsya shkaloj s deleniem ot shesti do 55 grammov na kvadratnyj metr s tochnost'yu do odnogo protsenta v usloviyakh khoroshej

Wear studies in the shearing process by means of irradiated tools; Etudes d'usure dans les operations de cisaillement, au moyen d'outils irradies; Issledovaniya problemy iznosa v protsesse skalyvaniya posredstvom obluchennykh instrumentov; Estudios de desgaste en las operaciones de cizallamiento, realizados con ayuda de herramientas irradiadas

Energy Technology Data Exchange (ETDEWEB)

Sata, Toshio; Abe, Kunio; Nakajima, Kiyoshi [Institute of Physical and Chemical Research, Komagome, Bunkyo-Ku, Tokyo (Japan)

1962-01-15

del punzon y de la matriz al emplear lubricantes y laminas metalicas de distintos tipos, obteniendose los resultados siguientes: 1) Al comienzo de la operacion, los indices de desgaste del punzon y de la matriz son muy elevados, pero disminuyen rapidamente, para estabilizarse despues de haber recortado entre 400 y 500 piezas; 2) El desgaste del punzon supera en un 20 por ciento al de la matriz; 3) Los lubricantes con aditivos especiales para altas presiones (compuestos de cloro, fosforo o azufre) reducen el desgaste de las herramientas, mientras que los aceites minerales refinados ejercen poco efecto; 4) Cuanto mas duro es el metal trabajado, tanto mayor es el desgaste de las herramientas; el desgaste al punzonar acero inoxidable y acero al silicio es tres y seis veces superior, respectivamente, al observado en el caso del acero pobre en carbono. (author) [Russian] Iznos instrumenta v protsesse skalyvaniya metallicheskogo lista issledovalsya s pomoshch'yu probojnikov i stal'nykh puansonov s bol'shoj skorost'yu shtampovki, obluchennykh v yadernom reaktore. Kruglye diski diametrom 10 mm shtampuyutsya iz stal'nogo lista s nizkim soderzhaniem ugleroda tolshchinoj 0,5 mm, nerzhaveyushchej stali i kremnievoj stali, sukhim sposobom i so smazkoj. Posle shtampovki izmeryalas' radioaktivnost' diskov otverstij. Kogda radioaktivnyj puanson zamenyalsya neradioaktivnym, to na diskakh obnaruzhivalas' neznachitel'naya radioaktivnost' v to vremya, kak radioaktivnost' v otverstiyakh edva izmenyalas'. EHto pokazalo, chto iznos puansona mozhno opredelit' po radioaktivnosti diskov, a iznos probojnikov - po radioaktivnosti otverstij. S pomoshch'yu ehtogo metoda iznos probojnikov i puansonov proveryalsya pri ispol'zovanii razlichnykh vidov smazochnogo materiala i metallicheskogo lista i byli polucheny sleduyushchie rezul'taty: 1) V nachale shtampovki skorost' iznosa kak probojnika, tak i puansona ochen' bol'shaya, no ona bystro snizhaetsya i stanovitsya, nakonets, postoyannoj posle

Manufacture of Wood-Plastic Combinations by Use of Gamma Radiation; Fabrication de combinaisons bois-matiere plastique a l'aide des rayons gamma; Proizvodstvo drevesno-plastmassovykh sostavov s pomoshch'yu gamma-izlucheniya; Impregnacion de maderas con materiales plasticos en presencia de radiaciones gamma

Energy Technology Data Exchange (ETDEWEB)

Kent, J. A.; Winston, A.; Boyle, W.; Updyke, L. [Engineering Experiment Station, West Virginia University, Morgantown, West Virginia (United States)

1963-11-15

maderas de pino albar, encina blanca, encina roja, alamo, abedul, haya, abeto y arce sacarino. Se indica el efecto de la intensidad de dosis sobre las velocidades de polimerizacion en esas combinaciones, algunas de las cuales son incompatibles. Por ejemplo, la secoya no permite la polimerizacion del acetato de vinilo o del metacrilato de metilo, en tanto que el pino albar imposibilita la polimerizacion del acetato de vinilo. Los autores estudiaron diversos agentes de reticulacion con miras a determinar su eficacia para acelerar la polimerizacion y, con ello, conseguir ciclos mas breves, y exponen los resultados obtenidos para el acrilato de alilo, el dimetacrilato de etilenglicol, el dimetacrilato de polietilenglicol, el titanato de tetra-isopropilo, el metacrilato de alilo y (en el caso del estireno) el divinilbenceno. Los ensayos mecanicos realizados con maderas impregnadas ponen de manifiesto una mejora de propiedades tales como la dureza, el limite de elasticidad en la compresion y la estabilidad dimensional. Por lo general, se registra un aurpento de la fragilidad respecto de la madera natural. En la memoria se incluyen datos sobre la dureza, el limite de elasticidad en la compresion, la estabilidad en la compresion, la estabilidad dimensional, asi como la resistencia a la flexion y al cizallamiento. (author) [Russian] Opisan promyshlennyj metod polucheniya drevesno-plastmassovykh ''splavov'' s pomoshch'yu gamma-izlucheniya. Protsess sostoit iz dvukh chastej: propitki otobrannoj drevesiny neobkhodimym monomerom i polimerizatsii monomera v meste nakhozhdeniya .s pomoshch'yu gamma-luchej. Izucheno vliyanie razlichnykh faktorov na proniknovenie monomera v drevesinu. Provedennye ispytaniya pokazali, chto na praktike osushchestvimo khoroshee raspredelenie polimera v konechnom produkte. Odnu chast' obraztsov tolshchinoj 10 cm i dlinoj 150 cm podvergli propitke i issledovali na pronikanie monomera, v to vremya kak druguyu chast' obraztsov takoj zhe tolshchiny uspeshno

Multi-channel recording of a pulse spectrum on the screen of a Williams tube used with a ferrite memory analyser; Enregistrement du spectre d'impulsion sur l'ecran d'un tube de Williams au moyen d'un analyseur multicanal a memoire en ferrite; Zapis' spektra impul'sov na ehkrane ehlektronno-luchevoj trubki mnogokanal'nogo analizatora s ferritovoj pamyat'yu; Registro multicanal del espectro de los impulsos en la pantalla del tubo electronico, en un analizador con memoria de ferrita

Energy Technology Data Exchange (ETDEWEB)

Rumler, Shtirad [Institut Yadernogo Issledovannya Chekhoslovatskoj Akldemii Nauk, Rzhezh Chekhoslovatskaya Sotsialisticheskaya Respublika (Czech Republic)

1962-04-15

' neposredstvennoj zapisi dana nizkim srednim chislom i statisticheskim vremennym raspredeleniem impul'sov. Predlozhennyj sposob okazyvaetsya v dannom sluchae bolee prigodnym, kachestvo zapisi ne zavisit ni ot formy spektra, ni ot skorosti scheta impul'sov. EHtot sposob ispol'zuetsya u 256-kanal'nogo analizatora s mertvym vremenem ferritovoj pamyati, ravnym 15 mikro-sekundam. Tsikl ostsillograficheskogo izobrazheniya chereduetsya periodicheski s chastotoj povtoreniya 50 gts s tsiklom analiza izmeryaemogo spektra. Vremya ostsillografirovaniya ravno primerno 4 millisekundam, t.e. 20% obshchej prodolzhitel'nosti rabochego tsikla analizatora. V analizatorakh s men'shim chislom kanalov i s bolee korotkim mertvym vremenem pamyati, vremya ostsillograficheskoj zapisi sostavlyaet lish' neskol'ko protsentov prodolzhitel'nosti rabochego tsikla analizatora. (author)

The determination of random event-rate based on counter live-time measurement; Determination de la frequence reelle d'evenements aleatoires par comptage et mesure du temps mort du compteur; Opredelenie skorosti scheta besporyadochno sleduyushchikh impul'sov, osnovannoe na izmerenii rabochego vremeni schetchika; Sobre la determinacion del ritmo de sucesos aleatorios basada en la medida del tiempo eficaz de un contador

Energy Technology Data Exchange (ETDEWEB)

Radeka, V [Institut Rudjer Boskovic, Zagreb, Yugoslavia (Croatia)

1962-04-15

notablemente inferior a la disminucion de ritmo ocasionada por el propio convertidor. Discute el error de las mediciones del tiempo eficaz desde el punto de vista de los limites de aplicacion del metodo seguido. El analisis formulado es valido para los analizadores de amplitud de impulsos y los contadores basados en la medicion del tiempo eficaz. La aplicacion del metodo a los analizadores de amplitud de impulsos y a los contadores con predeterminacion electronica automatica no ofrece mayores dificultades. (author) [Russian] Analiziruetsya metod opredeleniya istinnoj skorosti scheta impul'sov, sozdavaemykh sluchajnym protsessom, osnovannyj na schetnom ustrojstve i izmerenii rabochego vremeni. Najdennaya skorost' scheta v osnovnom ne zavisit ot razreshayushchej sposobnosti schetchika po vremeni. Pokazano, chto oshibka, vyzvannaya razreshayushchej sposobnost'yu po vremeni ustrojstva, preobrazuyushchego sobytie v ehlektricheskij impul's na vkhode sistemy, znachitel'no nizhe, chem dejstvitel'noe umen'shenie skorosti scheta samim preobrazovatelem. Obsuzhdaetsya oshibka izmereniya rabochego vremeni v sootnoshenii s predelami primeneniya ehtogo metoda. Dannyj analiz mozhet primenyat'sya k amplitudnym analizatoram impul'sov i schetchikam, izmeryayushchim rabochee vremya. Metod mozhet byt' legko primenen v amplitudnykh analizatorakh impul'sov i schetchikakh s ehlektronnym rele vremeni. (author)

Theoretical Interpretation of Pulsed Neutron Phenomena; Interpretation Theorique des Phenomenes dus aux Neutrons Pulses; Teoreticheskaya interpretatsiya yavlenij, svyazannykh s impul'snymi nejtronami; Interpretacion Teorica de los Fenomenos Debidos a Neutrones Pulsados

Energy Technology Data Exchange (ETDEWEB)

Corngold, N. [Brookhaven National Laboratory, Upton, NY (United States)

1965-08-15

. Osoboe vnimanie obrashhaetsja na jeksperiment s impul'snymi nejtronami v nerazmnozhajushhih sredah i na ego interpretaciju s tochki zrenija prostranstvenno-energeticheskih raspredelenij i postojannyh spada (vo vremeni). Teoreticheskie issledovanija v jetoj oblasti, bol'shuju chast' kotoryh provodit Bruk- hejvenskaja nacional'naja la''rratorija, osnovany na tochnom reshenii neskol'kih special'nyh problem, a takzhe na priblizhennyh chislennyh reshenijah v bolee real'nyh situacijah. Ne- davno predlozhena edinaja tochka zrenija, osnovannaja na teorii Van Hov-Glaubera o rassejanii medlennyh nejtronov. Vyjasneno, chto vremennaja zavisimost' parno-korreljacionnoj funk- cii, kotoraja pozvoljaet provodit' raznicu mezhdu razlichnymi zamedliteljami, takzhe regu- liruet obnaruzhivaemyj spektr postojannoj spada. V rabote podcherkivaetsja sluchaj reshenija dlja beskonechnoj sredy, hotorye proporcional'ny jeksponente (iB * r), v sredah s pogloshheniem, podchinennym zakonu 1/v. Analiticheskaja rabota svjazana s naibolee verojatnymi reshenijami, proporcional'nymi takzhe jeksponente ({lambda}t), a chislennyj raschet napravlen na reshenie, uchi- tyvajushhee polnuju ''istoriju processa'', a takzhe na modal'nye reshenija. Zatragivajutsja takzhe javlenija, s kotorymi stalkivalis', kogda pogloshhenie ne podchinjaetsja zakonu 1/v i kogda ob- razec zamedlitelja nastol'ko mal, chto vremennye reshenija ne razdeljajutsja bol'she v pro- stranstvenno energeticheskom otnoshenii. Nakonec, obsuzhdaetsja znachenie jetih rezul'tatov dlja interpretacii impul'snyh jeks- perimentov. V chastnosti, avtory imejut v vidu izmerenie diffuzii, kojefficienty dif- fuzionnogo ohlazhdenija, a takzhe, v zavisimosti ot haraktera podhoda, asimptoticheskoe ras- predelenie . (author)

Study of pentane and cyclopentane radiolysis with the aid of radioactive iodine; Etude de la radiolyse du pentane et du cyclopentane a l'aide d'iode radioactif; Issledovanie radioliza pentana i tsiklopentana s pomoshch'yu radioaktivnogo joda; Estudio de la radiolisis del pentano y del ciclopentano con ayuda de yodo radiactivo

Energy Technology Data Exchange (ETDEWEB)

Dauphin, J [Laboratoire de Chimie-Physique, Faculte des Sciences de Paris (France)

1962-03-15

formacion de radicales libres. Es posible que el analisis de estos radicales permite explicar, por lo menos parcialmente, los fenomenos observados. El autor efectua el analisis por : el yodo empleado como receptor se marca con yodo-131, por lo que al final de la reaccion se obtiene toda una serie de yoduros marcados. Lleva a cabo la separacion por destilacion en una microcolumna despues de haber anadido portadores inactivos y extraido el yodo inorganico. La actividad de cada fraccion se mide directamente a la salida de la columna. Los valores absolutos del coeficiente G se determinan por recuento de la actividad de una muestra testigo. El autor adopta las precauciones necesarias para evitar el intercambio isotopico durante la separacion. El metodo se aplico al ciclopentano y al n-pentano, habiendose obtenido un espectro de radiolisis detallado. (author) [Russian] Uglevodorody, obluchennye ioniziruyushchimi luchami, takimi, kak gamma-luchi kobal'ta-60, sredi drugikh veshchestv dayut svobodnye radikaly. Analiz ehtikh radikalov mozhet privesti k chastichnomu ob{sup y}asneniyu yavlenij. CHtoby osushchestvit' ehtot analiz, primenyayut metod ''izotopnogo razbavleniya'': jod, sluzhashchij ulovitelem, metyat jodom-131, chto privodit k tomu, chto v kontse reaktsii poluchaetsya tselaya seriya mechenykh jodidov. Razdelenie osushchestvlyaetsya peregonkoj na mikrokolonnom apparate posle dobavleniya neaktivnykh nositelej i izvlecheniya svobodnogo joda. Aktivnost' kazhdoj fraktsii izmeryaetsya pryamo posle vykhoda iz kolonki. Znak daet vozmozhnost' poluchit' absolyutnye znacheniya G ot nachala scheta. Byli prinyaty mery predostorozhnosti, chtoby izbezhat' izotopnogo obmena vo vremya razdeleniya. EHtot metod primenyalsya k tsiklopentanu i k p-pentanu i pozvolil poluchit' podrobnyj spektr radioliza. (author)

A Quick Method of Measuring and Analyzing {beta} Emitters in Solution of Very Low-Level Specific Activity; Remarques sur une technique rapide de mesure et d'analyse d'emetteurs {beta} en solution de tres faible activite specifique; Zamechaniya o bystroj tekhnike izmereniya i analize izluchatelej {beta}-chastits v rastvore s ochen' slaboj spetsificheskoj aktivnost'yu; Observaciones sobre un metodo rapido de medicion y analisis de emisores {beta} en soluciones de muy baja actividad especifica

Energy Technology Data Exchange (ETDEWEB)

Le Gallic, Y; Grinberg, B; Thenard, M [Centre d' Etudes Nucleaires de Saclay (France)

1960-06-15

vaina de contadores conectados en anticoincidencia con los primeros. 2. Ademas enumeran las posibilidades y campos de utilizacion del metodo que: a) especialmente en el caso de los emisores {beta} blandos, permite medir actividades especificas mucho mas bajas que cuando se utilizan contadores para liquidos; b) permite descubrir las sustancias radiactivas presentes como impurezas en determinados radioelementos (por ejemplo, 2/10 000 de P{sup 32} en S{sup 35}); c) para la mayor parte de los radioelementos permite medir, sin necesidad de proceder a una concentracion previa, actividades especificas de igual orden de magnitud que los limites de tolerancia actualmente admitidos. (author) [Russian] 1. Opisanie mekhanizma izmereniya so slabym fonom prednaznachennog o dlya izmereniya radioaktivnykh produktov v zhidkom sostoyanii, kotoryj sostoit v osnovnom iz dvukh ploskikh schetchikov s odnim oknom i odnogo ploskogo schetchika s dvumya oknami, raspolozhenny kh parallel'no drug k DRUGU i izolirovanny kh vnutri zashchitnoj obolochkoj schetchikov, vstavlen- nykh takim obrazom, chtoby oni ne sovpadali s pervymi. 2. Vozmozhnosti i oblasti ispol'zovaniya metoda: a) ehtot metod pozvolyaet izmerit' gorazdo bolee slabuyu spetsificheskuyu aktivnost', chem ehto vozmozhno s zhidkotnymi schetchikami, v chastnosti s izluchatelyami ne zhestkikh {beta}-chastits; b) ehtot metod pozvolyaet obnaruzhivat' radioaktivnye primesi vnutri radioehlementa (napr. 2/10 OOO R{sup 32} v S{sup 35}); s) ehtot metod pozvolyaet dlya bol'shinstva radioehlemento v izmeryat' bez predvaritel'no j kontsentratsii spetsificheskuyu aktivnost' sootvetstvenno ravnuyu prinyatym v nastoyashchee v nastoyashchee vremya predel'nym dopuskam. (author)

Extensions of the techniques for the accelerated unspecific isotopic labelling of organic compounds; Applications nouvelles des techniques accelererees du marquage non specifique de composes organiques; Rasprostranenie metodov uskoreniya mecheniya nespetsifichnymi izotopami organicheskikh slozhnykh soedinenij; Nuevas aplicaciones de las tecnicas de marcacion inespecifica acelerada de compuestos organicos

Energy Technology Data Exchange (ETDEWEB)

Ghanem, N A [National Research Centre, El-Dokki, Cairo (Egypt); Westermark, T [Division of Physical Chemistry, Royal Institute of Technology, Stockholm 70 (Sweden)

1962-03-15

marcar, y citar ejemplos en los que este procedimiento se ha empleado con exito. Las diversas tecnicas se basan en el uso de descargas de microondas y de ondas hertzianas, descargas luminiscentes producidas por corriente continua, o alterna, o sencillamente rayos ultravioleta. Se han obtenido cantidades considerables de productos purificados con actividades superiores a 100 mcuries/g. Los tiempos de exposicion a las descargas son del orden de un minuto, y en la mayoria de los casos se observo poca descomposicion. Los autores calcularon el rendimiento energetico alcanzado en estos metodos de marcacion y lo comparan con el correspondiente a las radiaciones ionizantes empleadas por Wilzbach y otros investigadores; tambien dan los valores de G para la sustitucion isotopica. Existen pruebas de que la marcacion del poliestireno se produce en virtud de una reaccion atomo-molecula. (author) [Russian] Tsel'yu nastoyashchego doklada yavlyaetsya rassmotrenie novykh sposobov uskoreniya reaktsii mezhdu radioaktivnym gazom i materialom misheni, podlezhashchim mecheniyu, a takzhe privedenie primerov uspeshnykh sluchaev. Ehti metody vklyuchayut ispol'zovanie razryadov mikrovoln i radiovoln, tleyushchikh razryadov pod vozdejstviem istochnikov postoyannogo ili peremennogo tokov, ili prosto radiatsii ul'trafioletovykh luchej. Byla dostignuta udel'naya aktivnost', dokhodyashchaya do 100 mikrokyuri na gramm, v znachitel'nykh kolichestvakh ochishchennogo produkta. Vremya vozdejstviya razryada bylo poryadka odnoj minuty, i vo mnogikh sluchayakh razlozhenie bylo chrezvychajno ogranichennym. Dayutsya podschety ehffektivnosti ispol'zovaniya ehnergii dlya proizvodstva mecheniya ehtimi metodami po sravneniyu s zatratoj dlya toj zhe tseli ehnergii ioniziruyushchego izlucheniya, ispol'zuemoj Vil'tsbakhom i dr. ; krome togo, ukazyvayutsya znacheniya radiatsionnokhimicheskogo vykhoda G dlya zameny izotopov. Est' ukazaniya na to, chto pri mechenii polistirola mekhanizm opredelyaetsya reaktsiej atom

Plasma-Column Equilibrium in Tokamak-5; L'Equilibre d'une Colonne de Plasma dans l'Installation Tokamak-5; Issledovanie ravnovesiya plazmennogo shnura na ustanovke Tokamak-5; El Equilibrio de una Columna de Plasma en la Instalacion 'Tokamak-5'

Energy Technology Data Exchange (ETDEWEB)

Muhovatov, V. S. [Institut Atomnoj Ehnergii, Im. I.V. Kurchatova, Moskva, SSSR (Russian Federation)

1966-04-15

. Se preparo un experimento para estimar la importancia de la contribucion al mantenimiento del equilibrio de la columna de plasma en el Tokamak, que es debido al mecanismo de cortocircuito de las corrientes de deriva por el diafragma conductor. A este fin, se dividio el diafragma en seis segmentos, aislados unos de otros. En el proceso de la descarga, con B{sub z} = 0, entre los segmentos superiores y los inferiores se observo una diferencia de potencial unipolar, casi de un orden de magnitud mayor que la temperatura electronica, calculada a partir de la conductividad electrica media del plasma. Para el valor optimo de B{sub z}, la diferencia de potencial era casi nula y, con un aumento posterior de B{sub z}, cambiaba de signo. Se observo una dependencia analoga, respecto de B{sub z}, en el caso de las corrientes que circulaban entre los segmentos al cerrar el circuito mediante resistencias de algunos ohmios. El contacto electrico de todos los segmentos entre sf, no producia una variacion apreciable de la magnitud del desplazamiento de la columna de plasma, ni de otras caracteristicas de la descarga. El valor, que se ha medido, de la corriente entre segmentos, no es suficiente para explicar la disparidad antes mencionada, tanto mas cuanto que se observa tambien estando los segmentos aislados. Se examinan las causas posibles de dicha discrepancia y los motivos de la aparicion de la gran diferencia de potencial entre los segmentos. (author) [Russian] Rabota posvjashhena issledovaniju uslovij ravnovesija plazmennogo shnura v ustanovke Toka- mak-5. Jeta ustanovka imeet sledujushhie parametry: bol'shoj radius mednogo kozhuha V = 62,5 sm, ego malyj radius b = 25 sm, malyj radius lajnera -20 sm, radius otverstija diafragmy - 15 sm (centr otverstija diafragmy i centr poperechnogo sechenija kozhuha sovpadajut), naprjazhennost' prodol'nogo magnitnogo polja B{sub 0} =6 Division-Sign 12 kje, velichina toka v plazme J = 15 Division-Sign 20 ka. Opyty provodilis' pri nachal

The Role of Free-Radicals in the Radiation Vulcanizing of Elastomers; Role des radicaux libres dans la vulcanisation radiochimique des elastomeres; O roli svobodnykh radikalov v protsesse radiatsionnoj vulkanizatsii ehlastomerov; Papel de los radicales libres en la radiovulcanizacion de los elastomeros

Energy Technology Data Exchange (ETDEWEB)

Kuz' minskij, A. S.; Fedoseeva, T. E.; Chertkova, V. F.

1963-11-15

izlucheniya v poslednee vremya ispol'zuetsya dlya sozdaniya promyshlennykh protsessov vulkanizatsii rezinovykh izdelij. Issledovateli udelyayut dostatochno bol'shoe vnimanie voprosam mekhanizma obrazovaniya trekhmernoj setki pod dejstviem izlucheniya; odnako do sikh por nedostatochno izucheny nachal'nye i promezhutochnye stadii radiatsionno-khimicheskikh reaktsij, vedushchikh k zashivaniyu molekulyarnykh tsepej, kotorye svyazany s obrazovaniem i gibel'yu svobodnykh radikalov, ion-radikalov i vozbuzhdennykh molekul. Izuchenie struktury i svojstv ehtikh chastits stalo vozmozhnym tol'ko s razrabotkoj i shirokim ispol'zovaniem metoda ehlektronnogo paramagnitnogo rezonansa (EHPR), pozvolyayushchego poluchit' neposredstvennuyu informatsiyu o strukture i svojstvakh paramagnitnykh chastits. Issledovanie protsessov rekombinatsii svobodnykh radikalov v linejnykh polimerakh daet vozmozhnost' podojti neposredstvenno k mekhanizmu radiatsionnoj vulkanizatsii. V poslednee vremya poyavilas' tendentsiya ispol'zovat' ioniziruyushchee izluchenie dlya vulkanizatsii sernykh vulkanizatov, tak kak sochetanie sernykh i uglerodnykh poperechnykh svyazej daet maksimal'noe uluchshenie fiziko-mekhanicheskikh svojstv izdelij. V svyaz'i s ehtoj novoj problemoj predstavlyalo interes izuchenie kineticheskikh svojstv svobodnykh radikalov v polimerakh s razvitoj prostranstvennoj strukturoj. Podrobno isledovalis' protsessy rekombinatsii svobodnykh radikalov, poluchennykh u-oblucheniem, v svyazi so strukturnymi osobennostyami linejnykh i sshitykh polimerov, a imenno - orientatsiej i vnutrennej podvizhnost'yu molekulyarnykh tsepej. V vysokoehlasticheskikh polimerakh tipa kauchukov, kharakterizukhshchikhsya bol'shoj vnutrennej podvizhnost'yu tsepej i maloj ehnergiej mezhmolekulyarnykh svyazej, pri temperaturakh vyshe T akty rekombinatsii svobodnykh radikalov osushchestvlyayutsya s ochen' bol'shimi skorostyami. Kontsentratsiya radikalov v obraztsakh kauchukov, obluchennykh v zhidkom azote, umen'shaetsya pri

Release of Fission Products from UC-ZrC Fuel Inserts; Degagement des produits de fission liberes dans des noyaux combustibles UC-ZrC; Vydelenie produktov deleniya iz topliv UC - ZrC; Liberacion de productos de fision por pastillas de combustible de UC-ZrC

Energy Technology Data Exchange (ETDEWEB)

Barth, F.; Von der Decken, C. B.; Schifferstein, K. [Brown Boveri/Krupp Reaktorbau G.M.B.H., Duesseldorf (Germany); Clauss, A.; Reichel, H.; Rygaert, J.; Ruston, W. R. [Societe d' Etudes de Recherches et d' Applications pour l' Industrie (S.E.R.A.I.), Brussels (Belgium)

1963-11-15

hallaron grandes diferencias en las energias de activacion determinadas en distintos tipos de pastillas, aunque algunas veces los valores D/r{sub 0}{sup 2} paragraph diferian en cuatro ordenes de magnitud para una misma temperatura de la muestra. Despues de la irradiacion, se determinaron las actividades de los isotopos {sup 131}I, {sup 85}Sr, {sup 140}Ba y {sup 141}Ce en el grafito de las capsulas. Exceptuando el {sup 131}I, las actividades resultaron superiores a las previstas para un desprendimiento debido solamente a retroceso. Los valores correspondientes al {sup 89}Sr, {sup 140}Ba y {sup 141}Ce son damasiado altos para que puedan atribuirse a una difusion de loe respectivos gases nobles precursores. Se supone que los isotopos medidos, o sus precursores distintos de los gases nobles se desprendieron por difusion. (author) [Russian] Provedeno issledovanie vo vremya oblucheniya v petle vydeleniya produktov deleniya ieh tabletok, imeyushchikh priblizitel'nyj sostav UC + 20 ZrC. Tsel' - proverka vozmozhnosti ispol'zovaniya podobnykh tabletok v kachestve topliva v sfericheskikh teplovydelyayushchikh ehlementakh vysokotemperaturnogo reaktora, postroennogo v Yulikhe ''Obshchestvom stroitel'stva reaktorov Braun Boveri/Krupp''. Ispytaniyu podvergalis' svobodnye tabletki i tabletki, vstavlennye v grafitovye kapsuly. Nekotorye iz tabletok imeli pogranichnuyu zonu ieh chistogo karbida tsirkoniya, tolshchinoj 1 - 2 mm. Obraztsy pomeshchalis' v pechi ehlektricheskogo soprotivleniya, dayushchie maksimal'nuyu temperaturu 1600{sup o}C. Nejtronnyj potok vo vremya oblucheniya sostavlyal 3 - 4 x 10{sup 10} n/cm{sup 2} -sek. Petlya pozvolyala izmerit' vydelenie izotopov inertnykh gazov Kr{sup 85m}, Kr{sup 87}, Kr{sup 88},Xe{sup 133} i Xe{sup 135} vo vremya oblucheniya, i kosvennoe opredelenie I{sup 133} i I{sup 135} posle vyklyucheniya reaktora. Minimum vydeleniya I{sup 131}, Sr{sup 88}, Ba{sup 141} i Ce{sup 141} byl opredelen radiokhimicheskim metodom posle izvlecheniya obraztsa iz

Treatment of radiostrontium uptake in man; Traitement de la fixation de radiostrontium chez l'homme; Lechenie posledstvij pogloshcheniya radioaktivnogo strontsiya u cheloveka; Tratamiento de la radiotoxemla humana causada por absorcion de radioestroncio

Energy Technology Data Exchange (ETDEWEB)

Volf, V. [Department of Ionizing Radiation Institute of Industrial Hygiene and Occupational Disease, Prague, CSSR (Czech Republic)

1963-02-15

lecheniya proveryalas' v ehksperimente na krysakh v tekh zhe usloviyakh, kotorye imeli mesto vo vremya intsidenta. Pozdnee byli issledovany neskol'ko rakovykh bol'nykh s tsel'yu izucheniya dal'nejshikh vozmozhnostej okazaniya pervoj pomoshchi pri ostrom vnutrennem otravlenii radiostrontsiem u cheloveka. (author)

Electrical characteristics of sphere-plane type spark counters; Caracteristiques electriques de compteurs a etincelles du type sphere-plan; Ehlektricheskie kharakteristiki iskrovykh schetchikov tipa shar-ploskost'; Caracteristicas electricas de los contadores de chispas del tipo esfera-plano

Energy Technology Data Exchange (ETDEWEB)

Laborie, P; Blanc, D [Centre de Physique Nucleaire, Faculte des Sciences de Toulouse (France)

1962-04-15

quelques millimetres cubes, est tres bien defini, ce qui permet la construction de telescopes precis. (author) [Spanish] Los autores describen los detalles mecanicos y las caracteristicas de funcionamiento de unos detectores de chispas en que se utiliza como anodo una esfera de pequeno diametro (0,30 mm), dispuesta frente a un catodo plano y que funcionan en regimen de efecto , en aire a presion atmosferica. Las caracteristicas de contaje son semejantes a las de los detectores de anodo de alambre, de tipo Rosenblum. No obstante, el contador de esfera presenta, con respecto a dicho contador Rosenblum, cierto numero de ventajas derivadas de su geometria: a) la corriente residual (ruido de fondo) es debil y el desprendimiento de ozono y de oxidos de nitrogeno, con las chispas, es poco considerable; b) como su capacidad propia es muy pequena, el detector ofrece una respuesta mas rapida; c) la eficiencia es independiente de la direccion de incidencia de la particula, al reves de lo que ocurre con los contadores de alambre; d) el volumen sensible de revolucion en torno del eje de simetria del detector es de algunos milimetros cubicos y esta muy bien definido, lo que permite la construccion de telescopios de gran precision. (author) [Russian] Avtory opisyvayut mekhanicheskuyu konstruktsiyu i rabochie kharakteristiki iskrovykh schetchikov, v kotorykh v kachestve anoda ispol'zuetsya shar malogo diametra (0,30 mm), raspolozhennyj protiv ploskogo katoda. Ehti schetchiki rabotayut v rezhime ''kol'tsevogo'' yavleniya (''korony'') v vozdukhe pri atmosfernom davlenii. Schetnye kharakteristiki blizki k kharakteristikam schetchikov Rozenblyuma s anodnym provodom. Sharovoj schetchik imeet, odnako, nekotorye preimushchestva po sravneniyu so schetchikom Rozenblyuma, chto svyazano s ego geometriej: 1. ostatochnyj tok (fon) slabyj, a vydelenie ozona i okisi azota vo vremya iskreniya neznachitel'no. 2. Poskol'ku ego sobstvennaya emkost' ochen' mala, schetchik daet bolee bystryj otvet. 3

Intermediate arithmetic memory; Memoire arithmetique intermediaire; Promezhutochnoe arifmeticheskoe zapominayushchee ustrojstvo; Memoria aritmetica intermediaria

Energy Technology Data Exchange (ETDEWEB)

Amram, Y; Guillon, H; Tandardini, D [Centre d' Etudes Nucleaires de Saclay (France)

1962-04-15

de inscribirlas sobre una cinta magnetica. Esta integrada por diez registros de dieciseis cifras binarias y dos conmutadores de diez posiciones, que gobiernan, uno la escritura y el otro la lectura; ademas hay circuitos auxiliares que aseguran el avance correcto de cada conmutador con respecto al otro. Debido al reducido valor de la capacidad minima exigida y de la persistencia necesaria, se han adoptado como elementos de memoria condensadores aislados mediante diodos de silicio. He aqui sus principales caracteristicas: tiempo de acceso inferior a 10 {mu}s; cadencia de salida: 0,25 - 0,5 - 1 o 2 ms. Solamente los circuitos de conmutacion estan provistos de tubos electronicos de tipo corriente y de trocotrones. Los circuitos logicos a base de transistores y los elementos de la memoria vienen montados sobre cartones impresos de 10 x 10 cm. El aparato adopta la forma de un estante (rack) de cinco unidades, de 50 cm de profundidad. (author) [Russian] Ehto zapominayushchee ustrojstvo prednaznacheno dlya regulirovaniya postupleniya predvaritel'no kodirovannoj informatsii dlya zaneseniya ee na magnitnuyu lentu. Ono sostoit iz 10 registrov s 16-t'yu dvoichnymi tsiframi i dvukh kommutatorov s 10 pozitsiyami, odin iz kotorykh upravlyaet pishushchim, a drugoj chitayushchim prisposobleniyami. Vspomogatel'nye tsepi obespechivayut pravil'noe polozhenie kazhdogo kommutatora po otnosheniyu k drugomu. Vvidu neznachitel'noj trebuemoj emkosti i neprodolzhitel'nosti uderzhaniya informatsii v kachestve ehlementov zapominayushchego ustrojstva byli vybrany kondensatory, izolirovannye kremnievymi diodami. Osnovnymi kharakteristikami yavlyayutsya: vremya podkhoda men'she 10 {mu}s; chastota vykhoda: 0,25 - 0,5 - 1 ili 2 ms. Tol'ko tsepi pereklyucheniya oborudovany obychnymi ehlektronnymi i trokhotronnymi lampami. Tranzistornye logicheskie tsepi i ehlementy zapominayushchego ustrojstva smontirovany na pechatnykh skhemakh razmerom 10 x 10 cm. Ustrojstvo vyglyadit v vide sostoyashchej iz 5

Use of Radioactive Tracers in the Study of Insect-Plant Relationships; Emploi des radioindicateurs dans l'etude des relations insecte-plante; Ispol'zovanie radioaktivnykh indikatorov dlya izucheniya vzaimnoj svyazi mezhdu nasekomymi ch rasteniyami; Empleo de marcadores radiactivos para estudiar las relaciones insecto-planta

Energy Technology Data Exchange (ETDEWEB)

Crossley, Jr., D. A. [Radiation Ecology Section, Health Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN (United States)

1963-09-15

habian pasaco la hibernacion de los adultos nuevos, porque la eliminacion del cesio en los primeros era mas rapida. En los estudios sobre poblaciones formadas por varias especies, la relacion entre el tamano del insecto y el indice de eliminacion sirvio para calcular el periodo medio biologico para la eliminacion del radiocesio por insectos harbivoros en una zona tratada con {sup 137}Ce. Este periodo medio y los datos sobre las masas biologicas vegetales e insectiles y sobre las concentraciones de radiocesio han permitido calcular el consumo de vegetales de una poblacion entera de insectos. Del mismo modo, se ha podido calcular el consumo de insectos de los artropodos depredadores basandose en las concentraciones estacionarias de radiocesio en los depredadores y en las victimas, las masas biologicas y el indice medio de eliminacion. (author) [Russian] Pri bolee rannem ispol'zovanii radioaktivnykh indikatorov v ehkologicheskikh issledovaniyakh nasekomykh-vreditelej ikh rasseyaniya i migratsii izuchalis' pri pomoshchi radioizotopov, kotorymi markirovalis' otdel'nye nasekomye. V poslednee vremya poluchilo rasprostranenie ispol'zovanie radioizotopov dlya izucheniya biologicheskoj assotsiatsii nasekomykh i rastenij, a takkhe khishchnykh nasekomykh i ikh dobychi, iskhodya iz opredeleniya potrebleniya imi pishchi. Biologicheskoe vydelenie radioizotopov, kotoroe meshaet izucheniyu rasseyaniya nasekomykh, ispol'zuetsya v nastoyashchee vremya dlya izmereniya kolichestva potrebleniya pishchi. Kak v polevykh issledovaniyakh, tak i v laboratornykh ehksperimentakh nasekomym daetsya vozmozhnost' dostich' v protsesse pitaniya sostoyaniya ustojchivoj kontsentratsii radioizotopov. V ehtikh usloviyakh temp pogloshcheniya dannogo radioizotopa raven tempu ego vydeleniya: (temp pogloshcheniya) = (velichine ustojchivogo sostoyaniya) x (skorost' poteri); Izmereniya tempov vydeleniya (biologicheskogo poluraspada) pozvolyayut perevodit' sostoyaniya ustojchivoj kontsentratsii v funktsii tempov

Studies on the Utilization, Metabolism and Function of Sterols in the House-Fly, Musca Domestica; Utilisation. Metabolisme et fonctions des sterols chez la mouche domestique (Musca Domestica); Izuchenie usvoeniya, metabolizma i funktsii sterinov v organizme domashnej mukhi Musca Domestica; Estudios sobre la asimilacion, el metabolismo y la funcion de los esteroles in la mosca comun (Musca Domestica)

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Robbins, W. E. [United States Department of Agriculture, Agricultural Research Service, Entomology Research Division, Beltsville, MD (United States)

1963-09-15

ambos casos el proceso de asimilacion y metabolismo de estos esteroles. Sin embargo, no hubo transformacion apreciable de {beta}-sitosterol en colesterol. En las dietas de las larvas se utilizaron tambien cantidades de colesterol inferiores al minimo necesario, combinadas con ''esteroles de ahorro''', como el colestanol, que pueden suministrar solo una parte del esterol que necesita el insecto. La asimilacion y el destino final del ''esterol de ahorro'' se han estudiado empleando colestanol-{sup 14}C; tambien se esta estudiando el metabolismo de la-minuscula cantidad de colesterol esencial, empleando para ello colesterol-{sup 14}C de elevada actividad especifica. Se han utilizado tambienotrasespeciesdeinsectos, entre ellos la cucaracha alemana (Blattella germanica), para completar el estudio de los modos de asimilacion y los esquemas metabolicos de los esteroles en la mosca comun. (author) [Russian] Bydo obnaruzheno, chto bol'shinstvu nasekomykh nuzhen dieticheskij istochnik sterinov dlya normal'nogo rosta i metamorfozy lichinki. Rabota posvyashchena dvum dopolnitel'nym fiziologicheskim funktsiyam sterinov v organizme domashnej mukhi Musca domestica L . : 1) Istochnik sterinovogo pitaniya sovershenno neobkhodim dlya obrazovaniya vynoslivykh zhiznesposobnykh yaits u zhenskikh osobej mukhi; pri nedostatochnom sterinovom pitanii yajtsa obrazuyutsya, no ikh vynoslivost' i zhiznesposobnost' yavlyayutsya nizkimi. 2) KHolesterin takzhe igraet rol' v mobilizatsii i ispol'zovanii rezervov pitaniya pri sozrevanii yaichnikov u samok domashnikh mukh. Izuchalas' kolichestvennaya potrebnost' v sterine pri vysheukazannykh fiziologicheskikh protsessakh i metabolicheskikh prevrashcheniyakh, proiskhodyashchikh vo vremya rosta, metamorfozy i razmnozheniya u ehtikh nasekomykh. Issledovaniya provodilis' s pomoshch'yu mechennykh uglerodom-14 i tritiem sterinov v sochetanii s razlichnymi analiticheskimi metodami, vklyuchaya obratnoe izotopnoe razbavlenie, gazovo-zhidkostnuyu khromatografiyu

A Technique of Culturing the Olive Fly, Dacus Oleae Gmel., on Synthetic Media Under Xenic Conditions; Methode d'elevage de la mouche de l'olive Dacus Oleae Gmel., en xenie sur milieux synthetiques; Metodika ksenicheskoj kul'tivatsii maslinnoj mukhi Dacus Oleae na sinteticheskoj srede; Una tecnica de cria de la mosca del olivo (Dacus Oleae Gmel.) en un medio sintetico en condiciones xenicas

Energy Technology Data Exchange (ETDEWEB)

Hagen, K. S.; Santas, L.; Tsecouras, A. [Agricultural College of Athens. Athens (Greece)

1963-09-15

, obychno zanimaemykh vnutri lichinki ili vzrosloj osobi tipichnym oimbiotom. Streptomitsin v nastoyashchee vremya vklyuchaetsya v sostav pishchi vzrosloj osobi dlya preduprezhdeniya bakterial'noj infektsii yaits. Lichinochnoe razvitie, razmery i razmnozhenie D. oleae byli normal'nymi. S pomoshch'yu razrabotannoj lichinochnoj sredy vozmozhna massovaya kul'tivatsiya, odnako neobkhodimy dal'nejshie issledovaniya dlya sozdaniya bolee bystrogo metoda razmeshcheniya yaits na srede. Zhelatelen dal'nejshij otbor ingibitorov pleseni, a takzhe otyskanie bolee deshevykh zamenitelej sredy. (author)

Design of the Small Rods Forming the Fuel Element of the First Charge of the EL4 Reactor. Cladding Problems; Etude des crayons constituant l'element combustible du premier jeu d'EL4 - probleme de la gaine; Problema pokrytiya nebol'shikh steeknej, obrazushchikh toplivnyj ehlement pervoj zagruzki reaktora EL.4; Estudio de las barras que constituyen los elementos combustibles de la primera carga del reactor EL4 - el problema de las vainas

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Bailly, H.; Ringot, C.; Weisz, M. [Centre d' Etudes Nucleaires de Saclay (France)

1963-11-15

ot tolshchiny pokrytiya. Chtoby izbezhat' ovala v predelakh rassmatrivaemoj' tolshchiny i chtoby imet' samuyu nizkuyu temperaturu v serdtsevine topliva, zazor dolzhen byt' sokrashchen do nulya vo vremya izgotovleniya. (author)

Construction and Operation of a Commercial Gamma-Ray Package-Sterilizing Plant; Construction et fonctionnement d'une installation industrielle pour la sterilisation d'articles sous emballage par les rayons gamma; Razrabotka i ehkspluatatsiya sbornoj ustanovki gamma-izlucheniya promyshlennogo tipa dlya sterilizatsii meditsinskikh materialov; Construccion y funcionamiento de una instalacion industrial para la esterilizacion gamma de articulos medicos empaquetados

Energy Technology Data Exchange (ETDEWEB)

Crawford, C. G. [Johnson' s Ethical Plastics Ltd., Slough (United Kingdom)

1963-11-15

'installation dans une unite d e production exploitee par une entreprise commerciale et la bacteriologie. Il etudie brievement la rentabilite de la sterilisation par les rayons gamma et examine quelles sont les autres possibilites d'utilisation d'une installation de cette nature. (author) [Spanish] En la memoria se describe una instalacion de esterilizacion a base de {sup 60}Co, explotada comercialmente por la Johnson's Ethical Plastics Limited en Slough (Reino Unido). Se trata de una instalacion de tratamiento continuo totalmente automatica equipada con una fuente de 72 000 c. Aprovechando la experiencia adquirida por la Junta de Energfa Atomica del Reino Unido en su Package Irradiation Plant de Wantage, dicha instalacion fue concebida para esterilizar jeringas de material plastico y otros articulos medicos no recuperables de analoga densidad aparente. La instalacion viene funcionando desde noviembre de 1962. En la memoria se indican las principales caracteristicas de construccion, en especial los dispositivos para la seguridad del personal, y el metodo de carga de las varillas de cobalto. Se describe la experiencia adquirida, en particular en lo que atauee a la dosimetria, la integracion de la instalacion en el proceso productivo de una empresa comercial y los resultados bacteriologicos. Por ultimo, se examinan brevemente los aspectos economicos de la esterilizacion por irradiacion gamma y se evaluan las posibles aplicaciones de una instalacion de este tipo en el futuro. (author) [Russian] Tsel' nastoyashchej stat'i - opisanie ustanovki dlya oblucheniya s pomoshch'yu Co{sup 60}, na kotoroj v nastoyashchee vremya proizvoditsya v promyshlennykh masshtabakh sterilizatsiya meditsinskikh materialov (firma ''Dzhonsons ehtikal plastike'' v Slou, Angliya). Ustanovka nepreryvnogo dejstviya snabzhena istochnikom v 72 000 kyuri; vse operatsii polnost'yu avtomatizirovany. Na osnove opyta, poluchennogo v ehtoj oblasti pri ehkspluatatsii sbornoj radiatsionnoj ustanovki v Uontidzhe (pri

Behaviour of semiconductor nuclear-particle detectors; Comportement des semi-conducteurs comme detecteurs de particules nucleaires; Povedenie detektorov yadernykh chastits na poluprovodnikakh; Propiedades de los detectores de particulas nucleares a base de semiconductores

Energy Technology Data Exchange (ETDEWEB)

Walter, F J; Dabbs, J W.T.; Roberts, L D [Oak Ridge National Laboratory, Oak Ridge, TN (United States)

1962-04-15

ot detektora i usilitelya. Dlya bar'ernogo detektora s kremnievoj poverkhnost'yu v 40 mm{sup 2} pri 77{sup o}K. byli ustanovleny pokazateli shuma, ehkvivalentnye c {<=} 3 kehv (polnaya shirina pri polumaksimume). Poluprovodnikovym detektoram svojstvenen ''defekt amplitudy impul'sa'' dlya oskolkov deleniya. Imeyutsya dannye, svidetel'stvuyushchie o tom, chto ehtot defekt ne vyzyvaetsya ''neradioaktivnym sloem''. Esli ehlektricheskie polya, kotorye yavlyayutsya nedostatochnymi dlya obespecheniya polnogo ''sbora'', vyzyvayut ehtot defekt, neobkhodimym minimal'nym polem (na poverkhnosti) yavlyaetsya pole svyshe 3 x 10{sup 4} vol't/sm dlya oskolkov deleniya po sravneniyu c 2 x 10{sup 3} vol't/sm, neobkhodimost' chego byla ustanovlena dlya al'fa-chastits v germanii i kremnii. Podrobnye issledovaniya vremeni narastaniya impul'sa v usilitele pokazali, chto v materialakh s vysokoj soprotivlyaemost'yu kak vremya ''diehlektricheskoj'' relaksatsii, tak i soprotivlenie, svyazannoe s neistoshchennym osnovnym materialom, mogut igrat' vazhnuyu rol'. V doklade daetsya kolichestvennoe opisanie dejstviya parametrov detektora i usilitelya na formy i vremya narastaniya, svyazannye s impul'som. V doklade obsuzhdayutsya preimushchestva i problemy, svyazannye s ispol'zovaniem poverkhnostnykh bar'ernykh detektorov v nekotorykh opytakh po yadernomu vyravnivaniyu pri unikal'no nizkikh temperaturakh. V khode ehtikh opytov proiskhodili uglovye raspredeleniya oskolkov raspada i razreshenie al'fa-mikrostruktury s dolgosrochnoj stabil'nost'yu. V doklade takzhe daetsya opisanie tekhniki izgotovleniya s koehffitsientom soglasovannogo rasshireniya, kotoraya uspeshno ispol'zovalas' dlya izgotovleniya detektorov do 8 cm{sup 2} v aktivnoj zone. (author)

Present Status of Nitrogen Fixation by Reactor Radiation; Etat Actuel des Recherches sur l'oxydation directe de l'azote sous irradiation dans des reacteurs; Sovremennoe sostoyani opytov po okisleniyu azota izlucheniem iz reaktorov; Estado actual de las investigaciones sobre fijacion del nitrogeno por irradiacion en reactores

Energy Technology Data Exchange (ETDEWEB)

Harteck, P; Dondes, S [Rensselaer Polytechnic Institute, Troy, NY (United States)

1960-07-15

sistema funktsioniruet v nastoyashchee vremya v Brukkhejvenskom reaktore v zakrytom konture. Dayutsya dannye o vliyanii temperatury, davleniya, proportsii smesi i intensivnosti izlucheniya, chto mozhet byt' ispol'zovano dlya proektirovaniya budushchego khimiko-yadernogo reaktora. Sushchestvuyushchaya sistema rabotaet pri davlenii v 10 atmosfer i pri .temperature v 150''oC. Temperatura zavisit ot ehnergii rasshchepleniya chastits, osvobozhdaemoj v steklyannom volokne, i ot ognestojkosti zakrytogo kontura. V nastoyashchee vremya stroitsya drugoj zakrytyj kontur, kotoryj dolzhen rabotat' pri davlenii v 50-75 atmosfer i pri temperature v 600''oC. EHti zakrytye kontury dayut vozmozhnost' sudit' o parametrakh potochnykh sistem, vklyuchaya povedenie produktov rasshchepleniya, vypuskaemykh v gazovyj potok. Slozhnaya kinetika okisleniya azota opisyvaetsya na trekh stadiyakh : nachal'nye reaktsii v sisteme; reaktsii posle obrazovaniya nekotorogo kolichestva okislennogo azota i, nakonets, kinetika pri ustanovlenii ravnovesiya izlucheniya. Rassmatrivayuts ya usloviya obrazovaniya N{sub 2}0{sub 5}, N{sub 2}0{sub 4} i O{sub 3}, a takzhe ikh vliyanie na ves' protsess. (author)

RA Research reactor, Annual report 1971; Istrazivacki nuklearni reaktor RA - Izvestaj za 1971. godinu - Pogon i odrzavanje

Energy Technology Data Exchange (ETDEWEB)

Milosevic, D et al. [Institute of Nuclear Sciences Boris Kidric, Vinca, Beograd (Serbia and Montenegro)

1971-12-15

effects. In the introduction of this report it has been emphasised that the decision makers should have in mind the negative effects of low budget on the reactor safe and reliable operation. For the sake of reactor, decision about the future operation and financing should be done as soon as possible, either to cease operation or continue with adequate financial support. [Serbo-Croat] Reaktor RA je u 1971. godini radio na nominalnoj snazi 190 dana i 50 dana na manjim snagama. Ukupni rad iznosio je 31606 MWh odnosno 5,3% vise od planiranog, sto je najvisa vrednost od kako je reaktor pusten u rad. Reaktor je koriscen za ozracivanja i eksperimente za 425 korisnika od cega 370 iz Instituta i 55 za korisnika izvan Instituta. Ovaj izvestaj sadrzi detaljne podatke o radu i eksperimentima koji su obavljani. Odstupanja od plana, odnosno veceg ostvarenog rada bilo je u junu i decembru usled posebnih zahteva korisnika. Ukupni broj prekida rada bio je manji od svih prethodnih godina, uglavnom zbog manjeg broja nestanka napona u vreme rada reaktora. U toku godine bilo je samo jedno sigurnosno zaustavljanje, ciji je uzrok bila pojava laznog signala opreme za zastitu reaktora. Nijednog duzeg prekida rada nije bilo zbog neispravnosti opreme. Kracih prekida bilo je usled kidanja spojki na potisnom cevovodu tehnicke vode, sto je bilo izazvano klizanjem zemljista u podrucju crpne stanice na Dunavu. Ukupna doza ozracivanja ljudstva bila je manja nego prethodnih godina. Nije bilo ni jednog akcidenta niti slucaja koji bi se mogao nazvati akcidentom. Dekontaminirano je znatno manje povrsina nego ranijih godina. Zakljuceno je da je uspesan rad reaktora u 1971. godini rezultat valjanog rada u prethodnim godinama. Medjutim usled jos nedefinisane politike u pogledu buduceg rada, odnosno neizvesnosti u vezi finansiranja, neki poslovi su obustavljeni. Tu spada proucavanje mogucnosti prelaska na koriscenje visokoobogacenog goriva sto bi povecalo korisni neutronski fluks i ucinilo reakor konkurentnim za

Badania nad czynnikami mogącymi mieć wpływ na udzielanie pierwszej pomocy osobie leżącej w miejscu publicznym = Research on factors being able to affect on delivering first aid to a person lying in a public place

Directory of Open Access Journals (Sweden)

Rafał Czyż

2016-03-01

  Abstrakt Osoby udzielające pierwszej pomocy medycznej tworzą istotne ogniwo łańcucha przeżycia. Chęć udzielenia pomocy nieznanej osobie jest zależna od wielu czynników. Ocena skłonności społeczeństwa do udzielania pomocy osobie leżącej w miejscu publiczny oraz badanie ich powiązań z danymi demograficznymi, poziomem lęku, jako stan i wrażliwością na wstręt. Grupę badaną stanowiło 314 osób, w wieku 23,9±5,1 lat w tym 74% kobiet i 26% mężczyzn. Wyniki zebrano za pomocą autorskiego kwestionariusza. Do ankiety dołączono również skalę oceny wrażliwości na wstręt (DSS oraz część STAI X-1 Inwentarzu Stanu i Cechy Lęku. 249 respondentów (79,3% podało, że co najmniej raz w życiu widziało osobę leżącą w miejscu publicznym. Porównując respondentów, którzy podeszli do osoby leżącej z tymi, którzy nie zainteresowali się tą osobą nie wykazano istotnych różnic pod względem płci, wieku oraz lęku jako stan. Jednakże, osoby te miały istotnie niższy wynik poziomu wstrętu: podstawowego  (45,4 ± 10,1 vs. 49,5 ± 11,5, do zwierząt (19,8 ± 7,3 vs. 23,9 ± 9,1, do skażonych przedmiotów (33,3 ± 9,2 vs. 36,1 ± 8,7 p<0,05. W analizie wieloczynnikowej wykazano, że osoby lepiej wykształcone z 1,7 krotnie większym prawdopodobieństwem zainteresują się osobą leżącą w miejscu publicznym. Dodatkowo wykazano, że wraz ze wzrostem poziomu wstrętu podstawowego u respondentów spada szansa na zainteresowanie się i udzielenie pierwszej pomocy osobie poszkodowanej. Duży odsetek respondentów spotkał się z przypadkiem osoby leżącej w miejscu publicznym, jednakże stosunkowo częsta jest reakcja niezainteresowania się jej stanem zdrowia. Instruktorzy pierwszej pomocy powinni uświadamiać kursantów, że poziom wrażliwości na wstręt istotnie wpływa na chęć i zakres udzielanej pomocy.   Słowa kluczowe: lęk, pierwsza pomoc, resuscytacja, medycyna ratunkowa, zdrowie publiczne.     Abstract Persons who

Effect of Gamma Radiation on Polyethyl Acrylate; Effet des rayons gamma sur le polyethylacrylate; Dejstvie gamma-izlucheniya na akrilat poliehtila; Efectos de las radiaciones gamma sobre el poliacrilato de etilo

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Heyns, H; Desreux, V [Laboratory of Physical Chemistry, University of Liege (Belgium)

1960-07-15

molekulyarnym vesom v rastvore i tverdom sostoyanii. Ispol'zuemymi rastvoritelyam i yavlyayutsya benzol i chetyrekhkhloristyj uglerod; opyty proizvodilis ' pri obychnoj temperature bez vozdukha i pri nalichii vozdukha. Nikakogo posleduyushchego dejstviya vo vremya irradiatsii rastvorov zamecheno ne bylo. Pri obluchenii vozrastayushchim i dozami razzhizhzhennykh rastvorov, pri nalichii vozdukha, zamecheno, chto sobstvennaya vyazkost' i postoyannoe osazhdenie umen'shayutsya . Poluchennye rezul'taty mogut byt' istolkovany na osnove degradatsii. Pryamoj i kosvennyj ehffekty proportsional'n y doze i zavisyat ot rastvoritelya. Oba oni takzhe pryamoproportsional'n y pervonachal'nomu molekulyarnomu vesu polimera. Izuchaetsya vliyanie kisloroda ili ingibitora (zamedlitelya) . Obluchenie provodilos' takzhe v tverdom sostoyanii. Ono pokazalo, chto v ehtom sluchae nablyudaetsya poperechnaya svyaz', kak pri nalichii, tak i pri otsutstvii kisloroda. EHta poperechnaya svyaz' soprovozhdaetsya bolee ili menee vazhnoj degradatsiej, v zavisimosti ot sluchaya. Nakonets, opyty, provedennye nad kontsentrirovannymi rastvorami v chetyrekhkhloristom uglerode, pokazyvayut, chto v dannom sluchae imeet mesto sopernichestvo mezhdu degradatsiej i poperechnoj svyaz'yu. (author)

The effective lifetime and temperature coefficient in a coupled fast-thermal reactor; Temps de vie effectif et coefficient de temperature dans un reacteur a couplage neutrons rapides-neutrons thermiques; Ehffektivnyj srok zhizni i temperaturnyj koehffitsient nejtronov v dvoyakom reaktore na bystrykh i teplovykh nejtronakh; Vida efectiva y coeficiente de temperatura en un reactor con acoplamiento rapido-termico

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Haefele, W. [Kernforschungszentrum, Karlsruhe (Germany)

1962-03-15

. Teplovoj komponent dejstvuet kak svoego roda zamedlitel' vremeni zhizni nejtronov. Kak i v teorii zapazdyvayushchikh nejtronov, ehffekt zapazdyvaniya ischezaet, esli reaktivnost' dostatochno vysoka, chtoby bystryj komponent stal kritichnym sam po sebe. V issledovanii rassmatrivalsya sparennyj reaktor, v kotorom bystryj komponent podvergaetsya dejstviyu vnezapnogo stupenchatogo skachka reaktivnosti {alpha}{sub 0}. Izza vozrastayushchego urovnya ehnergii temperatura podnimaetsya i nachinayut rabotat' dva temperaturnykh koehffitsienta: temperaturnyj koehffitsient bystrogo komponenta i temperaturnyj koehffitsient teplovogo komponenta. Ehta problema rassmatrivaetsya s odnoj gruppoj zapazdyvayushchikh nejtronov (v obychnom znachenii). Privoditsya formalizm dlya vyrazheniya ehffektivnogo sroka zhizni i temperaturnogo koehffitsienta vo vremya razlichnykh stadij issledovaniya. Dany takie otkloneniya dlya razlichnykh znachenij {alpha}{sub 0}, pri kotorykh dostigaetsya predel kinetiki reaktorov na bystrykh nejtronakh. (author)

Interesting Developments in UO{sub 2} Technology; Progres interessants dans la technologie du bioxyde d'uranium; Interesnye usovershenstvovaniya tekhnologii UO{sub 2}; Recientes progresos en la tecnologia del UO{sub 2}

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Robertson, J. A.L. [Atomic Energy of Canada Ltd., Chalk River, Ontario (Canada)

1963-11-15

permitiran determinar si las nuevas formas de combustible pueden ofrecer alguna ventaja economica. Mientras tanto, el continuo perfeccionamiento de las barras combustibles de UO{sub 2} sinterizado en geometrias simples dara lugar a una renida competencia. (author) [Russian] Sejchas, kogda neskol'ko reaktorov, v kotorykh toplivom sluzhit UO{sub 2}, nakhodyatsya v postoyannoj ehkspluatatsii, khoroshie radiatsionnye -svojstva UO{sub 2} ne nuzhdayutsya v dokazatel'stve. Priyatno uznavat' o tom, chto vazhnye usovershenstvovaniya eshche poyavlyayutsya. Naibolee znachitel'nom za poslednee vremya yavilos' otkrytie sotrudnikami istituta Behttely ochen' vysokoj teploprovodnosti otdel'nogo odinochnogo kristalla UO{sub 2} pri povyshennykh temperaturakh. Provedennoe v svyazi s raskhozhdeniem mnenij po ehtomu voprosu obluchenie v Chok-Rivere pokazalo, chto bol'shie zerna, obrazuyushchiesya v rabotavshikh toplivnykh ehlementakh, ne obyazatel'no obladayut ehtoj povyshennoj provodimost'yu. Ehksperimenty nashej laboratorii pokazali, chto povyshenie imeet mesto tol'ko v podstekhiometricheskikh soedineniyakh i malo zavisit, esli voobshche zavisit, ot otsutstviya granits zeren. Bezuslovno, vysokaya provodimost' mozhet byt' poluchena v polikristallicheskikh spekshikhsya materialakh putem regulirovaniya stekhiometrii. Davno izvestno, chto udlinenie obolochki mozhno umen'shit', esli izgotovit' tabletki ieh UO{sub 2} s uglubleniyami na tortsovykh poverkhnostyakh. Pozzhe bylo pokazano, chto smeshcheniyu topliva v pustoe prostranstvo v kontse trubki s tabletkami meshaet diametral'noe rasshirenie topliva i ego mekhanicheskoe vzaimodejstvie s obolochkoj. Samym bol'shim dostizheniem v otnoshenii svedeniya k minimumu rasshireniya obolochki yavilos' uyasnenie togo, chto prodol'noe, i diametral'noe rasshireniya vzaimosvyazany cherez posredstvo ob{sup e}mnogo rasshireniya topliva, goryachaya serdtsevina kotorogo dovol'no plastichna. Rasshirilis' nashi prakticheskie znaniya faktorov, opredelyayushchikh

The Enrico Fermi Atomic Power Plant; La centrais nucleaire Enrico Fermi; Atomnaya ehlektrostantsiya im Ehnriko Fermi.; La central nucleoelectrica Enrico Fermi

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Hartwell, R. W. [Power Reactor Development Company, Detroit, MI (United States)

1963-10-15

nejtronakh moshchnost'yu 100 mgvt (ehl.) bylo v osnovnom zakoncheno v dekabre 1961 goda. V techenie poslednikh 16 mesyatsev provodilis' shirokie ispytaniya sistem i komponentov. Ehta predpuskovaya programma ispytaniya okazalas' ochen' poleznoj dlya proverki konstruktsii i dlya opredeleniya neobkhodimykh izmenenij. Vse voznikshie problemy okazalis' razreshimymi. V doklade kratko osveshchayutsya naibolee vatnye izmeneniya. Grafitovaya zashchita. V dekabre 1960 goda pervyj kontur byl zapolnen natriem i byli nachaty shirokie ispytaniya. Kogda byl snova otkryt zashchitnyj bak pervogo kontura posle ispytaniya pervogo kontura pri temperature 1000{sup o}F, bylo obnaruzheno, chto bol'shaya chast' grafitovogo bloka zashchity, ustanovlennogo vokrug reaktora, povrezhdena. Vysokotemperaturnye bloki, nasyshchennye borom, uvelichilis' v ob''eme i poteryali prochnost'. Provedennyj tshchatel'nyj analiz pokazal, chto grafitovaya svyaz' povrezhdena. Bylo resheno zamenit' ves' grafit, ispol'zovat' karbid bora v kachestve soedineniya, soderzhashchego bor, ustanovit' blok s pomoshch'yu mekhanicheskogo krepleniya i dovesti vlazhnost' do minimuma. Izmeneniya v korpuse reaktora. Byl proveden remont i vneseny izmeneniya v konstruktsiyu dlya ustraneniya prichiny zaedaniya sborok, dlya likvidatsii povrezhdeniya, kotoroe yavilos' rezul'tatom ehtogo, i dlya ustraneniya v dal'nejshem neispravnosti v peremeshchayushchem mekhanizme upravleniya. Pered remontom byl udalen peremeshchayushchij mekhanizm upravleniya, korpus reaktora byl osushen ot natriya. Posle ehtogo podgotovlennyj peroonvl v spetsial'nykh zashchitnykh kostyumakh byl dopushchen vnutr' korpusa reaktora. Vkhod v rabochuyu zonu obespechivalsya s pomoshch'yu spetsial'nogo- vozdushnogo shl'za, poskol'ku v korpuse reaktora imelsya argon. Izmeneniya parogeneratora. Vo vremya gidrostaticheskikh ispytanij parogeneratora No. 2 byli obnaruzheny techi v neskol'kikh trubkakh. Prichinoj neispravnosti trubok bylo ikh rastreskivanie v rezul'tate korrozii ot

Meteorites as space probes for cosmic rays; Les meteorites en tant que sondes spatiales pour les rayons cosmiques; Meteority v kachestve prob mezhplanetnogo prostranstva dlya izucheniya kosmicheskikh luchej; Los meteoritos como sondas espaciales para evaluar la actividad inducida por los rayos cosmicos

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Schaeffer, O A; Stoenner, R W; Davis, R Jr [Chemistry Department, Brookhaven National Laboratory, Upton, L. I., NY (United States)

1962-01-15

luchej v nedavno upavshem meteorite. EHtot opyt osnovyvaetsya na tom obstoyatel'stve, chto meteority imeyut ochen' ehkstsentricheskie orbity i poehtomu mogut sluzhit' v kachestve prob mezhplanetnogo prostranstva mezhdu zemnoj orbitoj i zvezdnym poyasom. Vo vremya prebyvaniya vblizi or zemnoj orbity vozbuzhdaetsya korotkozhivushchaya aktivnost', togda kak na vsej orbite meteorita vozbuzhdaetsya dolgozhi- vushchaya aktivnost'. Zamery byli proizvedeny na khondrite 'Gamlet', upavshem v Indiane 13 oktyabrya 1959 goda. V ehtom meteorite nablyudalas' aktivnost' 35-dnevnogo argona-37 i 325-godichnogo argona-39. Otnositel'nye kolichestva ehtoj aktivnosti sopostavlyayutsya so skorost'yu obrazovaniya ehtikh izotopov pri bombardirovke obraztsa meteorita protonami s ehnergiej v 3 GeV. V itoge byl sdelan vyvod, chto potok kosmicheskikh luchej v predelakh dopustimoj pogresh- nosti odinakov kak v asteroidnom poyase, tak i vblizi zemnoj orbity. (author)

Use of radioisotopes in the systematic analysis of impurities in metals of very high purity; Application des radioisotopes a l'analyse systematique des impuretes dans les metaux de tres haute purete; Primenenie radioizotopov v sistematicheskom analize primesej v vysokochistykh metallakh; Aplicacion de los radioelementos al analisis sistematico de las impurezas en los metales muy puros

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Albert, Philippe; Gaittet, Jean [Centre d' Etudes de Chimie Metallurgique (C.N.R.S.), Vitry (France)

1962-01-15

insistiran especialmente en los resultados y en las consecuencias de los analisis por ellos realizados. (author) [Russian] tsentratsiya primesej dostigaet poryadka 10{sup -6} - 10{sup -8}. EHti metally izgotovlyayutsya v nebol'shikh kolichestvakh, i ochen' vazhno umet' tochno opredelyat' kolichestvennym analizom ochen' bol'shoe chislo ehlementov v odnoj probe. Sistematicheskij analiz alyuminiya i zheleza pri pomoshchi nejtronnogo oblucheniya pozvolil nam proizvesti kolichestvennyj analiz 45 ehlementov v odnoj probe poryadka odnogo gramma. EHtot analiz bol'shogo chisla primesej stal vozmozhnym lish' blagodarya kaskadnomu razdeleniyu poluchivshikhsya vo vremya oblucheniya radioizotopov na bolee chem 40 analiticheskikh fraktsij. Zatem bol'shinstvo radioizotopov izoliruetsya v chistom vide radiokhimicheskim putem, a ikh identifikatsiya dostigaetsya putem odnovremennogo izucheniya perioda ikh radioaktivnogo raspada i spektra ikh gamma-izlucheniya. Odnako, dopolnyaya ehtot sistematicheskij analiz k olichestvennym analizom nekotorykh ehlementov v otdel'noj probe, mozhno opredelyat' a Ktivatsionnym metodom okolo 60 ehlementov, libo obluchaya ikh nejtronami (sera, fosfor, khlor, barij...), libo pri pomoshchi reaktsij, vyzvannykh nejtronami (uglerod i bor). V nashem doklade my namereny osobo ostanovit'sya na rezul'tatakh i posledstviyakh nashikh analizov. (author)

Mass dependence of intermetallic diffusion; Influence de la masse sur la diffusion intermetallique; Zavisimost' massy intermetallicheskoj diffuzii; Influencia de la masa sobre la difusion entre metales

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Lazarus, D [Department of Physics, University of Illinois, Urbana, IL (United States)

1962-01-15

disolvente. El autor analiza tambien la influencia ejercida por la temperatura sobre ese efecto. (author) [Russian] Byli provedeny ehksperimenty dlya opredeleniya spetsificheskogo ehffekta izotopnykh mass na stepen' intermetallicheskoj diffuzii dlya togo, chtoby proverit' primenenie teorii ob{sup e}ma absolyutnoj reaktsii k protsessu diffuzii, a takzhe vychisleniya Bardina i KHerringa v otnoshenii korrelyatsii mezhdu izotopnym indikatorom i atomnymi perekhodami v rastvoritele. Primenyayutsya metody tochnykh sechenij s ispol'zovaniem izotopnykh indikatorov zheleza-55 i zheleza-59 v chistykh serebryanykh i mednykh odnokristallicheskikh obraztsakh. Dlya izmereniya nebol'shoj zavisimosti massy pri provedenii opyta trebuetsya bol'shaya tochnost'. Poskol'ku oba izotopa zheleza imeyut sovershenno razlichnye skhemy raspada, to tochnoe differentsirovannoe izmerenie aktivnosti mozhet byt' osushchestvleno s pomoshch'yu poglotitelej iz zolota i berilliya posle radiokhimicheskogo otdeleniya izotopnykh indikatorov ot osnovnogo materiala. Rezul'taty pokazyvayut, chto otnositel'naya skorost' diffuzii dvukh dannykh izotopov yavlyaetsya znachitel'no men'shej po sravneniyu s obychno ozhidaemoj skorost'yu blagodarya ili smeshcheniyu ot svoego polozheniya ravnovesiya vo vremya perekhodov v ehlementarnoj diffuzii ili sil'noj korrelyatsii mezhdu atomnymi perekhodami rastvoryaemogo veshchestva i rastvoritelya. Takzhe rassmatrivaetsya zavisimost' ehffekta ot temperatury. (author)

The radiation age of meteorites; L'age des meteorites; Opredelenie vozrasta meteoritov s pomoshch'yu radiatsii; Edad de los meteoritos

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Goebel, K; Schmidlin, P [European Organisation for Nuclear Research, Geneva (Switzerland)

1962-01-15

) [Russian] Radioizotopy, voznikayushchie v rezul'tate kosmicheskoj radiatsii v meteoritakh vo vremya ikh dvizheniya v kosmose, mogut byt' ispol'zovany dlya togo, chtoby prosledit' istoriyu ehtikh tel. Radioizotopy i akkumulirovannye dochernie ehlementy v meteorite dolzhny byt' opredeleny dlya vyrazheniya vremeni, v techenie kotorogo meteorit podvergalsya kosmicheskoj radiatsii. (Dlya vychisleniya neobkhodimo dopustit', chto potok radiatsii yavlyaetsya postoyannym v techenie vsego vremeni). Dlya izmereniya obyknovenno ispol'zuyutsya izotopy gazov, poskol'ku oni mogut byt' legko otdeleny ot samogo meteorita. V dannom issledovanii ispol'zovany, glavnym obrazom, tritij i argon. Po koehffitsientu radiatsii H3{sup /}He{sup 3} opredelyalsya vozrast meteorita ot neskol'kikh millionov let do neskol'kikh soten let. Poslednie izmereniya v TSERNe v printsipe soglasuyutsya s rezul'tatami drugikh issledovanij. V rabote obsuzhdayutsya voprosy vozmozhnykh otklonenij vvidu diffuzionnykh poter' gaza i vliyaniya ehkranirovki v atmosfernom meteorite. Velichina potoka kosmicheskikh luchej vo vneshnem prostranstve mozhet byt' opredelena, esli prinyat' vo vnimanie zamerennoe poperechnoe sechenie produktov tritiya v ehlementakh, kotorye obrazuyut meteorit. (author)

Joule Heating of Plasma in the Toroidal Tokamak-3 Device; Chauffage du Plasma par Effet Joule, dans l'Installation Torique; Dzhoulev nagrev plazmy na toroidal'noj ustanovke Tokamak-3; Calentamiento de un Plasma por Efeto Joule en la Instalacion Toroidal Tokamak

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Arcimovich, L. A.; Afrosimov, V. V.; Gladkovskij, I. P.; Mirnov, S. V.; Petrov, M. P.; Strelkov, V. S. [Institut Atomnoj Ehnergii, Im. I.V. Kurchatova, Moskva, SSSR (Russian Federation)

1966-04-15

calculadora, de un sistema de ecuaciones que comprende la ecuacion electrotecnica y la de equilibrio, permite determinar la variacion de la temperatura del plasma y su concentracion en funcion del tiempo, asf como la variacion del radio y del desplazamiento de la columna de plasma basandose en la variacion medida experimentalmente, de la corriente del plasma, de la tension y de las senales captadas por sondas magneticas y por el radiointerferometro en funcion del tiempo. La funcion calculada para la temperatura aumenta durante el proceso hasta alcanzar de 100 a 200 eV. Las mediciones espectroscopicas de la temperatura electronica dan valores proximos a los calculados. Los resultados de las mediciones del espectro energetico del flujo de atomos neutros rapidos concuerdan satisfactoriamente con los calculados partiendo del supuesto de que el espectro ionico del plasma es proximo al espectro de Maxwell con una temperatura de 100 eV aproximadamente. Se observa una desviacion significativa de la naturaleza de ese espectro con respecto al espectro de Maxwell en un regimen inestable de descarga en los momentos que corresponden a las inestabilidades caracteristicas de la columna de plasma. Ademas, se ha observado una diferencia perceptible en el flujo de atomos neutros procedentes de la parte 'superior' e 'inferior' de la columna, lo que puede explicarse por la presencia dentro de la columna de flujos ionicos de deriva animados de grandes velocidades transversales. (author) [Russian] V ustanovke Tokamak-3 vodorodnaja plazma sozdaetsja i nagrevaetsja kol'cevym jelektricheskim tokom velichinoj v 40-60 ka. Vremja protekanija toka 20-30 msek. Bol'shaja chast' opytov provedena pri velichine stabilizirujushhego prodol'nogo magnitnogo polja 25 000 je. S pomoshh'ju tokov, propuskaemyh po special'nym korrektirujushhim vitkam, kompensirovalas' poperechnaja sostavljajushhaja rassejannogo magnitnogo polja. Pri jetom v techenie razrjada ne proishodilo zametnogo smeshhenija centra shnura ot

Studies on radiation-image detectors; Etudes sur les detecteurs a images de rayonnements; Izuchenie detektorov izobrazheniya radiatsii; Estudios sobre detectores de radiaciones productores de imagenes

Energy Technology Data Exchange (ETDEWEB)

Reiffel, L [Armour Research Foundation, Chicago, IL (United States)

1962-04-15

expone datos relativos a sus caracteristicas opticas, que son tambien aplicables a la tecnologia de la camara de centelleo. Examina brevemente algunos tipos de detectores productores de imagenes, que podrian construirse empleando gruesos bloques de sustancias capaces de acumular energia en cantidad considerable y de producir fosforescencia estimulada cuando se someten a irradiacion, asi como algunos metodos de lectura en los que se emplean haces opticos de exploracion para evitar la disminucion de poder de resolucion debida al espesor finito del fosforo. (author) [Russian] Opisana provodimaya v nastoyashchee vremya rabota po izucheniyu detektorov izobrazheniya radiatsii, sposobnykh sokhranyat' informatsiyu o prostranstvennom raspredelenii. My zanimaemsya, glavnym obrazom, izucheniem problem, svyazannykh s opredeleniem raspredeleniya intensivnosti radiatsii na ploskosti, a vozmozhno, i na tsilindricheskoj poverkhnosti. V ehtu kategoriyu problem vkhodyat diffraktsiya nejtronov i radiografiya, a takzhe radiografiya rentgenovskikh luchej i gamma-izluchenij, ili zhe issledovanie rasseyaniya s pomoshch'yu takikh vidov izluchenij. Osobyj upor delaetsya na izuchenie detektorov izobrazheniya radiatsii, osnovannykh na razrushenii iskr, i na lyuminestsentsii ili navedennoj fosforestsentsii. My vyrabotali schetchiki iskr ochen' bol'shikh razmerov, vesom bolee 100 funtov, imeyushchie svetochuvstvitel'nye poverkhnosti poryadka 2000 kv. sm., kotorye snabzheny sistemoj ustupchatykh ploskostej pochti s 400 anodnykh i katodnykh provodov. Primenenie schetchikov, napolnennykh VOZDUKHOM ili gazovoj smes'yu argona s metanom dlya izmereniya potoka, sozdaet ustrojstvo, chuvstvitel'noe k al'fa-chastitsam, a obnaruzhenie medlennykh nejtronov dostigaetsya plastinami preobrazovatelya, obogashchennogo B{sup 10}. S drugimi zapolnyayushchimi gazami obnaruzhivalas' chuvstvitel'nost' k protonam i ehlektronam. Registratsiya raspredeleniya intensivnosti dostigaetsya fotograficheskoj s{sup e

Status of computational and experimental correlations for Los Alamos fast-neutron critical assemblies; Correlation entre les calculs et les experiences sur les ensembles critiques a neutrons rapides de Los Alamos; Sostoyanie vychislitel'nykh i ehksperimental'nykh korrelyatsij dlya Los-Alamosskoj kriticheskoj sistemy na bystrykh nejtronakh; Conjuntos criticos de neutrones rapidos de Los Alamos; correlacion entre resultados calculados y experimentales

Energy Technology Data Exchange (ETDEWEB)

Hansen, G E [Los Alamos Scientific Laboratory, University of California, Los Alamos, NM (United States)

1962-03-15

'nost ' vychislennogo spektra i kriticheskikh razmerov k razlichnym modelyam perenosa nejtronov (transportnye i linejnye priblizheniya) i arifmeticheskim priblizheniyam (ogranichennye uglovye segmentatsii i mnogogruppovy e predstavleniya) dlya neskol'kikh tipichnykh sistem, chtoby pomoch' ustanovit' neobkhodimye raschetnye detali. Sravneniya mezhdu ehksperimentom i vychislennymi dannymi budut vklyuchat' takzhe v dopolnenie k spektral'nym indeksam i kriticheskim razmeram, vremya zhizni nejtronov i doli zapazdyvayushchikh nejtronov. (author)

The resolving limit of a three-diode coincidence circuit; Limite de resolution d'un circuit de coincidence a trois diodes; Predel razreshayushchej sposobnosti trekhdiodnoj skhemy sovpadeniya; Poder de resolucion de un circuito de coincidencia de tres diodos

Energy Technology Data Exchange (ETDEWEB)

De Vries, H [University of Marburg, Marburg, Federal Republic of Germany (Germany)

1962-04-15

muestra como los resultados experimentales coinciden bien con la teoria. (author) [Russian] Dlya issledovaniya predela razreshayushchej sposobnosti trekhdiodnoj skhemy sovpadeniya po De Benedetti i Richingsu byl ispytan polnyj pribor sovpadenij, sostoyashchij iz diodnoj yachejki, usilitelya, amplitudnogo diskriminatora i monovibratora pri impul'sakh s vremenem narastaniya v 10{sup -9} sekund i s osnovnoj prodolzhitel'nost'yu v 2 x 10{sup -9} sekundy. Izmeryalis' amplitudy, a takzhe vychislyalis' integraly impul'sov, poluchaemye pri vykhode iz usilitelya; krome togo, stroilis' krivye razresheniya v zavisimosti ot predstavlyayushchikh naibol'shij interes parametrov (amplituda vkhodyashchikh impul'sov, soprotivlenie pri vkhode v usilitel', rezhim raboty diodov i t.d.). Dlya ob{sup y}asneniya izmerenij proveden ryad issledovanij. Byla vyvedena, v chastnosti, krivaya razreshayushchej sposobnosti pribora sovpadenij i bylo podschitano vremya razresheniya. Bylo ustanovleno, kakim obrazom diodnaya yachejka, pomekhi usilitelya i soglasovanie usilitelya s diodnoj yachejkoj privodyat k opredeleniyu vremeni razresheniya pribora sovpadenij. Analiz izmerenij i teoreticheskie rezul'taty pokazali, chto pri optimal'nykh usloviyakh trekhdiodnyj pribor sovpadenij pozvolyaet dostich' naimen'shego predela vremeni razresheniya v 10{sup -11} sekund. Privodyatsya dannye o proiskhozhdenii krivoj razreshayushchej sposobnosti i soobshchayutsya rezul'taty izmerenij. Ukazyvaetsya na khoroshee sovpadenie ehksperimental'nykh dannykh s teoreticheskimi vykladkami. (author)

Preliminary Studies on Irradiation of Some Common Stored-Grain Insects in Pakistan; Etudes preliminaires sur l'irradiation de certaines especes communes d'insectes nuisibles aux cereales engrangees au Pakistan; Predvaritel'noe izuchenie rezul'tatov oblucheniya nekotorykh obychnykh ambarnykh nasekomykh v Pakistane; Estudios preliminares sobre los efectos de la irradiacion en algunas de las plagas insectiles de los silos mas comunes en el Pakistan

Energy Technology Data Exchange (ETDEWEB)

Huque, Heshamul [Department of Plant Protection, Ministry of Food and Agriculture, Karachi (Pakistan)

1963-09-15

reaktsii nekotorykh osnovnykh ambarnykh nasekomykh-vreditelej na obluchenie razlichnymi dozami ot istochnika s Co{sup 60}, lyubezno predostavlennogo Pakistanskoj komissiej po atomnoj ehnergii. Doza'20 000 r vyzyvala 100-protsentnuyu smertnost' vzroslykh osobej Rhizopertha dominica i Tribolium castaneum v techenie 11 sutok. Doza 10 000 r okazalas' ehffektivnoj tol'ko cherez 23 sutok. Vzroslye osobi Sitophilus granarius proyavlyali otnositel'no bol'shuyu chuvstvitel'nost', i pri obluchenii ikh 10 000 r polnaya smertnost' nastupala cherez 7 sutok. Odnako lichinki Trogoderma granarium okazalis' naibolee stojkimi; na bolee nizkie dozy oni vovse ne reagirovali, a 100-protsentnaya smertnost' byla dostignuta tol'ko cherez 26 sutok posle oblucheniya 25 000 r. Maksimal'naya doza 250 000 r privodila k mgnovennoj smerti vo vsekh sluchayakh, no ehta doza slishkom vysoka, i privodit k narusheniyu prorastaemosti semyan. Odnako vvidu togo, chto pitatel'nye svojstva ne stradayut/ ehta doza mokhet byt' ispol'zovana tam, gde zhelatel'no nemedlennoe istreblenie nasekomykh v neprednaznachennykh dlya poseva prodovol'stvennykh zernovykh. Bruchus quadrumaculatus ne vyplansivaetsya pri obluchenii dozoj v 2500 r. V nastoyashchee vremya prodolzhaetsya izuchenie drugikh stadij i dozirovok. (author)

Gamma Monitoring of Land Surfaces; Controle Gamma des Surfaces Terrestres; 0413 0410 041c 041c 0410 - 0414 ; Control de la Actividad Gamma en la Superficie del Terreno

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Ophel, I. L.; Jones, A. R. [Environmental Research and Radiation Dosimetry Branch, Division of Biology and Health Physics, Atomic Energy of Canada Limited, Chalk River, ON (Canada)

1960-07-01

ha acoplado un dispositivo para transportar una fuente patron de radio. El aparato es insensible a los rayos cosmicos y cuando el vehiculo se desplaza a 16 km/h las lecturas efectuadas representan el 80 por ciento de las obtenidas cuando el contador permanece inmovil. La medicion de la radiactividad en las carreteras que atraviesan la zona del reactor, acompanada de lecturas complementarias en puntos fijos de control distantes 100 metros de la carretera y 3.2 km entre si, ha demostrado que la radiacion ambiente en las carreteras es muy uniforme, alcanzando un promedio de 6 {mu}r/h. Los valores hallados en los puntos de control varian de 4,5 a 7,0 {mu}r/h. (author) [Russian] Bystroe provedenie dozimetricheskogo kontrolja zemnoj poverhnosti polezno dlja opredelenija razmerov ploshhadi, popavshej pod vozdejstvie radioaktivnogo zagrjaznenija vozduha ili dlja obnaruzhenija dlitel'nogo zarazhenija okruzhajushhej sredy. Dlja podgotovitel'nogo issledovanija mesta, kotoroe okruzhaet ploshhadku jenergeticheskogo rajona NPD okolo Chok-River, ispol'zovalsja massivnyj kontrol'nyj pribor, sposobnyj proizvodit' nepreryvnuju registraciju pri ustanovke ego na avtomobile. On sostoit iz antracenovogo kristallicheskogo schetchika gamma-luchej so shemoj fotoumnozhitelja usilenija impul'sov skorosti scheta - usilitel' postojannogo toka - 1 tA serija impul'sov samopisca.' Jeto oborudovanie vesit 28 kilogrammov i ustanavlivaetsja pri pomoshhi dvuh boltov na bufer villisa. Ego mozhno snjat' i ustanovit' na trenozhnike na takuju zhe vysotu nad zemlej. Vnutri avtomobilja ustanavlivaetsja rtutnaja batareja. Shemy rabotajut na poluprovodnikah. Dlja standartnogo istochnika radiokalibrovki ustanavlivajutsja zazhimnye prisposoblenija. Pribor ne chuvstvitelen k kosmicheskomu izlucheniju i pri skorosti dvizhenija mashiny 16 km/chas otschety dostigajut 80% teh, kotorye poluchajutsja pri nepodvizhnoj ustanovke schetchika. Obsledovanie dorogi na territorii NPD pri schete, snjatom takzhe na ustanovlennyh

Diagnosis of Massive Pulmonary Embolism in Man by Radioisotope Scanning; Diagnostic par Scintigraphy de l'Embolie Pulmonaire Massive chez l'Homme; Diagnostika massivnoj legochnoj ehmbolii u cheloveka s pomoshch'yu radioizotopnogo skennirovaniya; Diagnostico de la Embolia Pulmonar Masiva en el Hombre por Exploracion Radioisotopica

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Wagner, Jr., H. N.; Sabiston, Jr., D. C.; Iio, M.; Langan, J. K. [Departments of Medicine, Surgery and Radiology, Johns Hopkins University School of Medicine, Baltimore, MD (United States)

1964-10-15

acumulacion disminuida de radiactividad en las regiones afectadas. Se comprobo la utilidad clinica de esta tecnica para diagnosticar embolias pulmonares masivas en el hombre y para descubrir oclusiones vasculares en ciertos pacientes afectados de cor pulmonale. Los estudios en perros permitieron determinar la rapidez con que progresa la revascularizacion despues de una embolia pulmonar experimental. Se efectuaron varias exploraciones centelleograficas una vez retirados los embolos experimentales. La circulacion se restablecio en todo el pulmon algunas semanas despues de haber eliminado los embolos pulmonares cronicos en los perros. Los agregados de seroalbumina humana han conservado su poder antigenico en los conejos, los cobayos y los perros, pero los estudios realizados no han permitido comprobar que las particulas tengan poder antigenico alguno en el hombre. Gracias al rapido metabolismo de los macroagregados, la dosis de radiacion recibida por el paciente se mantiene bastante inferior a los valores admisibles. El empleo de albuminas de elevada actividad especifica permite limitar considerablemente las cantidades inyectadas; no se observan, por lo tanto, efectos cardiovasculares tales como aumentos de presion en la arteria pulmonar, ni alteraciones del electrocardiograma o del ritmo respiratorio. (author) [Russian] Krupnye chasticy al'bumina syvorotki cheloveka, mechennye jodom-131 ili hromom-51, ispol'zovalis' dlja opredelenija regional'nogo toka krovi v legkih u sobak i cheloveka. Posle vnutrivennogo vvedenija chasticy, nakaplivajushhiesja v legkih, dajut chetkoe izobrazhenie konturov legkih pri scintilljacionnom skenniro- vanii. U pacientov s legochnymi abscessami, pnevmoniej, atelektazom, rakom legkih i trombojembolicheskoj bolezn'ju legkih nabljudalos' ponizhenie nakoplenija radioaktivnosti v porazhennyh uchastkah. Byl najden metod, kotoryj budet prigoden v klinike dlja diagnostiki massivnoj legochnoj jembolii u cheloveka i demonstracii zakuporki sosudov u nekotoryh

Fission gas pressure build-up and fast-breeder economy; Accumulation de la pression des gaz de fission et economie des reacteurs surgenerateurs a neutrons rapides; Nakoplenie davleniya gazov produktov deleniya i ehkonomika reaktorov-razmnozhitelej na bystrykh nejtronakh; Aumento de la presion de los gases de fision y economia de los reactores reproductores rapidos

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Engelmann, P [Kernforschungszentrum, Karlsruhe (Germany)

1962-03-15

materiales de alta resistencia, tales como el Inconel-X y el molibdeno pueden soportar la presion de los gases de fision a las temperaturas de funcionamiento corrientes. Desgraciadamente , la seccion eficaz de absorcion de estos materiales es superior a la del acero inoxidable. El autor presenta los resultados de calculos, realizados segun una teoria de varios grupos, que permite conocer el efecto de la utilizacion de estos materiales y de la disminucion de la densidad del combustible, sobre la masa critica y sobre la razon de reproduccion en los reactores reproductores de pequenas y medianas dimensiones. (author) [Russian] Na stoimost' toplivnogo tsikla i na vremya udvoeniya reaktorovbriderov na bystrykh nejtronakh sil'no vliyaet stepen' dostigaemogo vygoraniya topliva. Ispol'zovani e oksidnogo ili karbidnogo topliva daet vozmozhnost' dostignut' vygoraniya poryadka 100 000 mvt-n/t. V toplivnykh ehlementakh s pokrytiem ogranichivayushchi m faktorom yavlyaetsya rost gazov produktov deleniya. Pri rassmatrivaemo m vysokom vygoranii poddayushchayasya otsenke fraktsiya gazov, obrazuemykh pri delenii, popadaet v pory i tem samym uvelichivaet davlenie na obolochku. Iskhodya iz izvestnykh vykhodov produktov deleniya i tsepochek raspada bylo vychisleno kolichestvo obrazuyushchegosya gaza i sozdavaemoe im davlenie. Pri raschete davleniya, dejstvuyushchego na obolochku, byli ispol'zovany tri fizicheskikh modeli: i) gaz soderzhalsya v svyazanykh mezhdu soboj porakh, ii) v otdel'nykh porakh i iii) v tsentral'nom otverstii. Budet rassmotrena zavisimost' davleniya ot svobodnogo ob{sup e}ma (plotnost' topliva) i temperatury. Obolochki, izgotovlennye iz vysokoprochnykh materialov, naprimer, iz inkonelya-Kh i molibdena, mogli by vyderzhat' pri rabochikh temperaturakh davlenie gazov, vydelyayushchikhsya v rezul'tate deleniya. K sozhaleniyu, ehti materialy obladayut bolee vysokimi poperechnymi secheniyami pogloshcheniya, chem nerzhaveyushchaya stal'. Budut dany rezul'taty mnogogruppovog o

The Separation of Hydrogen Tritium and Tritium Hydride by Gas Chromatography; Separation de l'hydrogene, du tritium et de l'hydrure de tritium par chromatographic en phase gazeuse; Razdelenie vodoroda, tritiya i gidrida tritiya posredstvom gazovoj khromatografii; Separacion del hidrogeno, tritio e hidruro de tritio por cromatografia de gases

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Smith, H A; Carter, Jr, E H [University of Tennessee, Knoxville, TN (United States)

1962-01-15

gas portador, la columna de silice permitio obtener una separacion satisfactoria, pero no fue posible eluir los isotopos con ayuda de helio. Las columnas de oxido de aluminio recubierto de oxido de cromo o de oxido ferrico, parcialmente desactivado, dieron buenos resultados cuando se empleo helio o neon como gas portador, pero la mejor separacion se obtuvo mediante alumina activada sin recubrimiento. Para determinar cuantitativamente el tritio y el hidruro de tritio, es preciso calibrar el dispositivo con mezclas de helio y tritio de actividad conocida y, ademas, con mezclas de hidrogeno y tritio en equilibrio, de actividad tambien conocida. (author) [Russian] V nastoyashchee vremya, kogda uzhe dostignuty znachitel'nye uspekhi v razdelenii vodoroda, dejteriya i vodorodnogo dejterida pri pomoshchi gazovoj khromatografii, provoditsya analogichnoe izuchenie smesi vodoroda, tritiya i gidrida tritiya. Poskol'ku tritij primenyaetsya v kachestve indikatora v nichtozhno malykh kolichestvakh, ispol'zovanie obychnogo katatermometra dlya ego obnaruzheniya ne predstavlyaetsya vozmozhnym. Vykhod iz ehtogo zatrudneniya byl najden pri pomoshchi togo, chto neposredstvenno za katatermometrom ustanavlivaets ya vibratsionnyj ehlektrometr, snabzhennyj otvodom utechki vysokogo soprotivleniya, chto pozvolyaet nepreryvno sledit' pri pomoshchi sinkhronizovannykh zapisyvayushchikh mekhanizmov za aktivnost'yu tritiya i gidrida tritiya pri vykhode ikh khz kolonny. Razdelenie takikh smesej proveryalos' na kolonnakh, zapolnennykh palladiem na kremnezeme, kremnezemom, glinozemom i glinozemom, pokrytym okis'yu khroma ili okis'yu zheleza. Na kolonne, zapolnennoj palladiem na kremnezeme, ne bylo dostignuto ehffektivnogo razdeleniya. KHoroshee razdelenie bylo dostignuto na prostoj kremnezemnoj kolonne, kogda vodorod ispol'zovals ya v kachestve gaza-nositelya, no gelij ne smog ehlyuirovat' izotopy. Udovletvoritel'nye rezul'taty byli polucheny na kolonne, zapolnennoj pokrytym i chastichno

The use of Kr{sup 85} for the measurement of leaks in hermetically sealed components; Emploi du krypton-85 pour la detection des fuites dans les pieces hermetiquement scellees; Opredelenie utechki germeticheski izolirovannykh komponentov pri pomoshchi Kr''8''5; Empleo del {sup 85}Kr para la deteccion de fugas en piezas hermeticamente selladas

Energy Technology Data Exchange (ETDEWEB)

Berry, P F; Cameron, J F [Wantage Research Laboratory (A. E. R. E.), Wantage, Berks. (United Kingdom); Wilson, E J [Radiochemical Centre, Amersham, Bucks. (United Kingdom)

1962-01-15

ustranyaet vozmozhnost' utechki, zakryvaya na vremya davlenie ili vakuum, i obespechivaet velichinu utechki, chto yavlyaetsya bolee poleznym. (author)

The Determination of Sub-Microgram Quantities, of Amino Acids with H{sup 3}- and C{sup 1}4-Labelled 1-Fluoro-2.4 Dinitrobenzene; Determination d'acides amines en quantites inferieures au microgramme a l'aide de 1-fluoro-2,4-dinitrobenzen e marque au {sup 3}H et au {sup 14}C; Podschet submikrogrammnykh kolichestv aminokislot pri pomoshchi 2 : 4 dinitroftor'enzola, mechennogo H{sup 3} i C{sup 14}; Determinacion de cantidades de aminoacidos inferiores al microgramo por medio de 1-fluoro-2,4-dinitrobenceno marcado con {sup 3}H y {sup 14}C

Energy Technology Data Exchange (ETDEWEB)

Beale, D; Whitehead, J K [Middlesex Hospital Medical School, London (United Kingdom)

1962-01-15

satisfactoriament con los valores que suministra el analisis por derivacion empleando anhidrido acetico marcado con {sup 3}H y con {sup 14}C, y con los que se obtienen mediante cromatografia de intercambio ionico. (author) [Russian] Opisyvaetsya metod izotopnogo derivatsionnogo analiza dlya opredeleniya aminokislot pri nizkom urovne v 10{sup -5} mikro-mol' v gidrolizatakh proteina. 2:4 djnitroftorbenzola-H{sup 3} (G) byl sintezirovan iz ' brombenzola-H{sup 3}(G) i 2 : 4 dinitroftorbenzola-C{sup 14}(G), kotoryj byl poluchen iz khlorbenzola-C{sup 14}(G). Metod analiza vklyuchaet obrabotku smesi amino-kislot tritirovannym reaktivom (udel'naya aktivnost' 12.8 mikro kyuri/mikro ehkvijalent) v shchelochnoj rastvore, k kotoromu prisoedinyaetsya primes' s izvestnoj aktivnost' (6000 raspadov v minutu) proizvodnykh 2 : 4 dinitrofenila , mechennogo S14. Posle rastvoryayushchej ehkstraktsii smeshannaya reaktsiya vydelyaet iz svoego sostava proizvodnye dinitrofinila dvumya putyami khromatografii na bumage i soderzhanie H''3 i C''1''4 kazhdoj kapli opredelyaetsya szhiganiem i gazovym podschetom. Podschet H''3 daet kolichestvo, ravnoe proizvodnoj DNK iz aminokisloty, otdelennoj ot osnovnoj smesi, a schet C''1''4 ukazyvaet na velichinu poter', poluchivshikhsya vo vremya analiza. Itogi, poluchennye v rezul'tate analiza 1 mikrogramma gidrolizovannogo insulina polnost'yu soglasuyutsya s velichinami, poluchennymi v rezul'tate derivatsionnogo analiza s ispol'zovaniem uksusnogo angidrida, mechennogo H{sup 3} i C{sup 14} i s pomoshch'yu khromotografii ionnogo obmena smol. (author)

Plasma Equilibrium in a Torus with High-Frequency Fields and Plasma Heating Resulting from the Development of a Powerful Beam of ''Escaping Electrons''; Plasma Torique: Stabilisation au Moyen de Champs de Haute Frequence et Chauffage par Formation d'un Flux Intense d'Electrons 'Emballes'; Ehksperimental'noe issledovanie ravnovesiya plazmy v tore pri nalichii vysokochastotnykh polej i nagreva plazmy za schet razvitiya moshchnogo puchka ''ubegayushchikh ehlektronov''; Equilibrio del Plasma en un Toro, en Presencia de Campos de Alta Frecuencia, y Calentamiento del Plasma por el Desarrollo de un Haz Potente de 'Electrones Desbocados '

Energy Technology Data Exchange (ETDEWEB)

Demirkhanov, R. A.; Kirov, A. G.; Stotland, M. A.; Malykh, N. I.; Horasanov, G. L.; Vishnevskij, N. K.; Gutkin, T. I.; Jampol' skij, I. R. [Fiziko-Tehnicheskij Institut Gosudarstvennogo Komiteta po Ispol' zovaniju Atomnoj Ehnergii SSSR, Sukhumi, SSSR (Russian Federation)

1966-04-15

razvertka svechenija plazmy vo vremeni s pomoshh'ju jelektronno- opticheskogo preobrazovatelja; v) izmerenija povedenija (polnoj intensivnosti rentgenovskogo izluchenija vo vremeni s pomoshh'ju scintilljacionnogo schetchika; g) izmerenie toka v plazme i naprjazhenija na obhode. Rezul'taty jeksperimentov pokazyvajut, chto podzhigajushhee vysokochastotnoe pole s chastotoj f = 8,3 Mgc), sozdaet plazmu, kasajushhujusja stenok, so srednej plotnost'ju P{sub e} = 5 * 10{sup 12} * 10{sup 13} sm{sup -3} i jelektronnoj temperaturoj porjadka neskol'kih jelektronvol't. Pri nalozhenii na jetu plazmu vrashhajushhegosja kvadrupol'nogo vysokochastotnogo polja plazma otzhimaetsja ot stenok, lokalizuetsja v centre i temperatura ee uvelichivaetsja. Issledovalsja rezhim nagreva'sil'nym jelektricheskim polem v otsutstvie vrashhajushhegosja vysokochastotnogo kvadrupol'nogo polja. V jetom sluchae, kogda jelektricheskoe pole ravno E{sub z} = 100 * 200 v/sm v plazme razvivaetsja tok Jp =3 * 5 ka, kotoryj imeet sushhestvenno omicheskij harakter pri sil'nom zatuhanii. V to zhe vremja naprjazhenie na obhode takzhe ves'ma sil'no zatuhaet po sravneniju s holostym hodom, chto ukazyvaet na jeffektivnoe pogloshhenie jEhnergii kontura plazmoj. Velichina jEhnergii, pogloshhennoj plazmoj v techenie pervogo poluperioda toka, t.e. za vremja okolo 1 mksek, sostavljaet primerno 20 dzh; pri jetom okazyvaetsja, chto provodimost' plazmy anomal'no mala. V rezhime nagreva sil'nym jelektricheskim polem nabljudaetsja intensivnaja vspyshka rentgenovskogo izluchenija s jenergiej porjadka 100 kjev, a takzhe izluchenie mikrovolnovyh shumov na chastotah blizkih k plazmennoj. (author)

Selected Lectures of the XXII National Congress of the Italian Society of Neonatology (Società Italiana di Neonatologia, SIN; Naples (Italy; October 12-15, 2016

Directory of Open Access Journals (Sweden)

--- Various Authors

2016-10-01

OBSERVATIONAL STUDYR. Falsaperla, G. Vitaliti, P. Pavone, G. Di StefanoLECT 16. QUALITY OF LIFE PERCEPTION IN EX PRETERM CHILDREN S. Orcesi, I. Olivieri, S. BovaLECT 17. OXYGEN SATURATION TARGETS AND RETINOPATHY OF PREMATURITY IN ELBW INFANTSP.P. Popolo, S. Pesce, C. Mercogliano, C. GizziLECT 18. PROTOCOL FOR PREVENTION OF SUDDEN UNEXPECTED POSTNATAL COLLAPSEL. Ilardi, I. Picciolli, L. Bollani, A. Bossi, R. Bottino, C. Buggè, S. Cherubini, L. Colombo, C. Pagliotta, E. Palumbo, S. Perniciaro, L. Rossi, V. Siragusa, P. Tagliabue, on behalf of the Lombardy Section of the Italian Society of NeonatologyLECT 19. HOME BIRTH: THE RISKS OF AN ANCIENT PRACTICES. Martinelli, S. FiocchiLECT 20. NEONATAL ULTRASONOGRAPHY SCREENINGR. AgostinianiLECT 21. PULSE OXIMETRY SCREENING FOR CRITICAL CONGENITAL HEART DISEASE IN THE WELL-BABY NURSERYF. Schena, I. Picciolli, L. Colombo, F. MoscaLECT 22. CRITICAL ISSUES IN THE EARLY DISCHARGE OF THE NEWBORNA.A. Zuppa, P. Catenazzi, A. Compagnone, C. RomagnoliLECT 23. FEVER IN THE NEWBORN: WHAT TO DO?R. Pedicino, I. Stolfi, V. PisaniLECT 24. CYANOSIS IN THE NEWBORNC. DaniLECT 25. HEAD TRAUMA: WHICH APPROACH IN THE NEWBORN INFANT?P. Biban, G. La Fauci, E. Giacomelli, G. Pagano, S. Spada, D. SilvagniLECT 26. VITAMINS AND FLUORIDE: NEW REQUIREMENTS IN A MULTI-ETHNIC WORLDS. FanaroLECT 27. MELATONINS. AversaLECT 28. IRON AND TRACE ELEMENTSP. Saracco, R. BagnaLECT 29. IMMUNIZATION OF THE NEONATEG. ChiricoLECT 30. FERMENTED INFANT FORMULAE: EVIDENCE FROM NEWBORNSF. Mosca, M.L. Giannì, A. Orsi, P. RoggeroLECT 31. LEGAL ISSUES OF NEONATAL EMERGENCY TRANSPORT SERVICEL. Capasso, A.C. Borrelli, M. Colonna, A. Di Fiore, I. Fucile, F. RaimondiLECT 32. END OF LIFE CARE IN NEONATAL INTENSIVE CARE UNITL. Memo, P. LagoLECT 33. PEDIATRICIANS PRESCRIBING FORMULAS FOR INFANTS: SCIENTIFIC, LEGISLATIVE AND ETHICAL ISSUESG. Faldella, S. MartiniLECT 34. BREASTFEEDING PROMOTION, SUPPORT AND PROTECTIONN.A. RomeoLECT 35. BREASTFEEDING DIFFICULTIES IN THE NON-INTENSIVE CONTEXTG

Problems raised by pulse analysers - functional multi-dimensional analysers; Problemes poses par les analyseurs en impulsions - Analyseurs multidimensionnels fonctionnels; Problemy, voznikayushchie v svyazi s ispol'zovaniem analizatorov impul'sov - funktsional'nye mnogorazmernye analizatory; Problemas planteados por los analizadores de impulsos - Analizadores multidimensionales funcionales

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Pages, A [Centre d' Etudes Nucleaires de Saclay (France)

1962-04-15

hace imposible el experimento; ademas, al estar concebidos en un solo ''bloque'', son poco adaptables a los diversos modos de empleo. En 1958-59, se estudio y construyo en Saclay un aparato multidimensional limitado a 2 vias de 63 canales. Se establecio una separacion entre las diversas funciones esenciales: analisis, transferencia (que funciona en multidimensional) y elaboracion de los resultados. Los Sres. Amram, Guillon y Thenard estan estudiando y construyendo en la SEG un analizador multidimensional de 1023 x 63 canales (destinado al grupo de medicion de velocidades neutronicas de la SPNBE). A fln de superar las limitaciones formuladas mas arriba, en el laboratorio de electronica de la SPNBE, se esta construyendo un analizador multidimensional funcional, en el cual la funcion de transferencia esta a su vez subdividida en unidades (ritmador, memoria no integradora, acondicionador y calculadora). Igual que los limites que definen las vias, los tipos de unidades elegidas varian segun las necesidades y la complejidad del experimento (idioma normal interfuncional). (author) [Russian] Vse chashche ehksperimentatory pol'zuyutsya analiticheskimi sistemami, dayushchimi vozmozhnost' poluchit' funktsiyu mnogikh para- metrov (chislo parametrov mozhet izmenyat'sya v zavisimosti ot kharaktera opyta, a takzhe ot tochnosti ego provedeniya). Sovremennye analizatory nedostatochno sootvetstvuyut vse vozrastayushchej slozhnosti opytov, i ehto proiskhodit po mnogim prichinam: chislo vozmozhnykh parametrov slishkom neznachitel'no (deblokirovanie proizvoditsya tol'ko v analizatory so 100 i 256 kanalami). EHto ogranichenie znachitel'no uvelichivaet vremya ispol'zovaniya uskoritelya. Inogda provedenie opyta stanovitsya nevozmozhnym iz-za plokhoj ''otdachi'' ehtikh analizatorov. Inogda iz-za ikh sborki v odin edinstvennyj ''blok'' im ne khvataet ''gibkosti'' v ispol'zovanii. Avtory izuchilii postroili v 1958-1959 godakh mnogorazmernuyu ustanovku, ogranichennuyu dvumya putyami po 63 kanala

Tritium Content of Rainwater from the Eastern Mediterranean Area; Teneur en tritium des eaux de pluie dans la region de la Mediterranee orientale; Soderzhanie tritiya v dozhdevoj vode, vzyatoj iz vostochnogo rajona sredizemnogo morya; Contenido del tritio en las aguas de lluvia de la zona del Mediterraneo oriental

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Gat, J R; Karfunkel, U; Nir, A [Weizmann Institute of Science, Rehovoth (Israel)

1962-01-15

del lugar de la explosion a la zona estudiada. Por lo tanto, la presencia de tritio en las capas inferiores de la atmosfera se debe a la difusion desde las capas superiores. Los tiempos medios de permanencia atmosferica del tritio han sido calculados para el tritio estratosferico procedente de distintas fuentes. Parece demostrado que el proceso de mezcla del tritio en la estratosfera es lento. Las diferencias entre las concentraciones de tritio que aparecen sistematicamente en distintos lugares se explican por las circunstancias variables que determinan la precipitacion pluvial. Se demuestra que el grado en que se mezclan las masas de aire maritimo y continental ejerce una influencia decisiva sobre el contenido de tritio de las aguas pluviales, y que las dimensiones del Mar Mediterraneo son pequenas en comparacion con la escala en que suceden los fenomenos meteorologicos que intervienen en dicho proceso. (author) [Russian] V techenie 1958-1960 gg. okolo 50 prob dozhdevoj vody bylo vzyato v Izraile i sosednikh stranakh i podvergnuto kolichestvennomu analizu na soderazhnie v nikh tritiya s pomoshch'yu gazovogoschetchika posle ehlektroliticheskogo obogashcheniya. Syuda vkhodili proby otdel'nykh livnej, vzyatye na dvukh stantsiyakh v Izraile i odnoj stantsii na Kipre, a takzhe proby vody, sobrannye v techenie kazhdogo sezona dozhdej v ryade mest v Izraile, na Kipre, Turtsii i Gretsii. Krome togo, byli takzhe proanalizirovany proby vody, vzyatoj iz vodoemov, kotorye sootvetstvuyut sezonam dozhdej v 1956/57 i v 1957/58 gg. Na osnovanii skhemy tsirkulyatsii vozdukha i vremeni provedeniya ispytatel'nykh termoyadernykh vzryvov v svyazi s mestnym sezonom dozhdej ustanovleno, chto ne proiskhodit pryamogo troposfernogo perenosa tritiya iz rajonov ispytanij v dannyj rajon. Sledovatel'no, izmerennye urovni tritiya vyzyvayutsya proniknoveniem tritiya iz bol'shikh vysot v nizkie sloi vozdukha. Opredelyaetsya srednee vremya prebyvaniya v atmosfere stratosfernogo tritiya iz razlichnykh

Diagnosis and treatment of a local and afterwards generalized plutonium contamination; Diagnostic et traitement d'un cas d'intoxication par le plutonium local d'abord et generalise ensuite; Diagnoz i lechenie mestnogo i posledukshego generalizirovannogo porazheniya plutoniem; Diagnostico y tratamiento de una contaminacion local y luego general por plutonio

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Lafuma, J. [Commissariat a l' Energie Atomique, Centre d' Etudes Nucleaires, Fontenay-aux-Roses (France)

1963-02-15

a intervenir reduciendo la contaminacion interna de la mano hasta 2 {mu}c. Si bien esta actividad no se pudo localizar, se somete a vigilancia periodica. Simultaneamente con la descontaminacion quirurgica, se procedio a una descontaminacion interna con DTPA. Inmediatamente despues del accidente, se tomaron muestras de sangre, orina y heces y se midieron sus actividades. Despues se recogieron diariamente muestras de orina; durante cada periodo de tratamiento, se tomaron asimismo muestras de sangre y de heces. Todas las mediciones indican que el DTPA es sumamente eficaz en-el caso de contaminacion interna por {sup 239}Pu. Tambien parece que el porcentaje de plutonio de la sangre que se elimina por el riflon varia con el tiempo. Este porcentaje aumenta, lo que indica que el plutonio es transportado por la sangre en diversas formas ionicas o coloidales que los rinones filtran en grado variable. Existen, pues, razones para suponer que la actividad de la orina no refleje fielmente el grado de contaminacion interna. (author) [Russian] Vo vremya avarii obe ruki tekhnika okazalis' porazheny shestivalentn'sh azotnokislym plutoniem-239. Zagryaznenie odnoj tol'ko levoj ruki, izmerennoe s pomoshch'yu rentgenometra, sostavilo okolo 60 mkkyuri. Pervoe provedennoe pod mestnoj anesteziej obbezzarakhivanie pozvolilo svesti zagryaznenie do 15 mkkyuri. Skanirovanie privelo v lokalizatsii neskol'kikh zon aktivnosti. Khirurgicheskoe vmeshatel'stvo, proizvedennoe pod povyazkoj EHsmakha i pod kontrolem rentgenometra i alfa-schetchika, svelo zagryaznenie c 15 do 5 mkkyuri pri sokhranenii polnoty funktsii ruk. Povtornoe skanirovanie pozvolilo lokalizovat' novuyu zonu aktivnosti, a povtornoe vmeshatel'stvo umen'shilo vnutrennee zarazhenie ruki do 2 mkkyuri. Lokalizovat' dannuyu aktivnost', za razvitiem kotoroj osushchestvlyalsya regulyarnyj kontrol', ne predstavilos' vozmozhnym. Parallel'no s ehtim khirurgicheskim obezzarazhivaniem bylo predprinyato vnutrennee obezzarazhivanie s pomoshch

Effects of Irradiation on the Adults of Sitophilus Sasakii Takahashi (Curculionidae) and their Offspring; Influence de l'irradiation sur les adultes de Sitophilus Sasakii Takahashi (Curculionidae) et leurs descendants; Dejstvie oblucheniya na vzroslykh osobej Sitophilus Sasakii Takahashi (Curculionidae) i na posleduyushchie pokoleniya; Influencia de la irradiacion sobre los adultos del Sitophilus Sasakii Takahashi (Curculionidae) y sus descendientes

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Laviolette, P.; Nardon, P. [Institut National des Sciences Appliquees, Lyon-Villeurbanne (France)

1963-09-15

koehffitsienta variabil'nosti i srednego sroka vyzhivaniya v zavisimosti ot dozy predpolagaet nalichie dvukh chuvstvitel'nykh mekhanizmov, narushaemykh oblucheniem. Chuvstvitel'nost' k oblucheniyu, po-vidimomu, vozrastaet s vozrastom. S 2000 r plodovitost' sokrashchaetsya vdvoe. Pri 5000 i 6000 r nablyudaetsya faza vremennogo besplodiya. Polnaya sterilizatsiya dostigaetsya pri doze 15 000 r i vyshe. Sterilizatsiya rentgenovskimi luchami bolee ehffektivna pri 150 kv, chem pri 80 kv. Sposobnost' k oplodotvoreniyu znachitel'no bolee stojka, chem plodovitost', po otnosheniyu k oblucheniyu, potomu chto dazhe pri 16 000 r prodolzhaetsya otkladyvanie yaits. Obluchenie roditelej vedet k sokrashcheniyu plodovitosti i vesa posleduyushchikh pokolenij i uvelicheniyu sroka ikh razvitiya. Ehti posledstviya peredayutsya ot odnogo pokoleniya drugomu, prichem ehksperimentator ne vedet nikakoj selektsii. V to vremya kak dva pervykh pokoleniya imeyut tendentsiyu k ischeznoveniyu, uvelichenie sroka razvitiya prodolzhaet ostavat'sya stabil'nym, po krajnej mere, dlya desyati pokolenij. Predstavlyaetsya vozmozhnym primenenie radiatsii dlya dezinsektsii produktov pitaniya. (author)

Initial Operating Experience with the ''NPD'' Reactor; Experience recueillie pendant les premiers mois de fonctionnement du reacteur NPD; Pervyj opyt po ehkspluatatsii reaktora NPD; Experiencia inicial de funcionamiento del reactor NPD

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McConnell, L. G. [Hydro-Electric Power Commission of Ontario, Toronto, Ontario (Canada)

1963-10-15

raboty na vysokoj moshchnosti v techenie shesti nedel' dal koehffitsient ispol'zovaniya na moshchnost', ravnyj 70% Uluchsheniya, kotorye byli dostignuty, uvelichili bezopasnost', povysili ehkspluatatsionnye kharakteristiki i prodemonstrirovali potentsial'nye metody snizheniya kapital'nykh zatrat dlya budushchikh stantsij. Tak, naprimer, v tselyakh uluchsheniya ehkspluatatsionnykh kachestv byli vidoizmeneny uplotneniya valov na nasosakh okhladitelya pervogo kontura; oborudovanie tipa kholodil'nikov, ispol'zovavsheesya dlya regeneratsii para, bylo zameneno pogloshchayushchimi kolonkami s tsel'yu umen'sheniya poteri para v tyazheloj vode. Ustanavlivayutsya takzhe ogranichiteli potoka vody v liniyakh dlya vzyatiya prob s tsel'yu umen'sheniya poteri tyazheloj vody v sluchayakh neispravnostej v soedineniyakh. V dekabre 1962 goda dve odnovremennye utechki iz mashiny, proizvodyashchej zagruzku topliva, priveli k neobychnomu obstoyatel'stvu, pri kotorom znachitel'noe kolichestvo goryachej tyazheloj vody pod vysokim davleniem popalo v kameru reaktora, gde proizoshlo neznachitel'noe umen'shenie ee izotopnoj chistoty, kotoraya zatem byla prevyshena i reaktor byl vnov' pushchen v kontse mesyatsa. Vo vremya avarii vse ustrojstva po bezopasnosti rabotali tochno i obespechili uderzhanie tyazheloj vody. (author)

Production of Strontium-90 Thermal Power Sources; Fabrication de sources d'energie thermique au strontium-90; Proizvodstvo istochnikov ''teplovoj ehnergii iz Sr''9''0; Preparacion de fuentes de energia termica con estroncio-90

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Cochran, J. S.; Bloom, J. L.; Schneider, A. [Martin Company, Nuclear Division, Baltimore 3, MD (United States)

1963-11-15

rajonakh. V ehtom smysle Sr{sup 90} priobretaet bol'shoe znachenie iz-za ego shirokoj dostupnosti, aktivnosti i toj sravnitel'noj legkosti, s kotoroj ego mozhno prevrashchat' v kompaktnye istochniki tepla. Generatory, rabotayushchie na Sr{sup 90} sluzhat v kachestve istochnikov pitaniya avtomaticheskikh meteorologicheskikh i navigatsionnykh stantsij; rassmatrivaetsya vozmozhnost' primeneniya Sr{sup 90} v kachestve istochnika ehnergii dlya dvigatelej kosmicheskikh korablej. Pri sravnitel'noj otsenke ryada strontsievykh soedinenij okazalos', chto naibolee tselesoobrazno ispol'zovat' titanat, tak kak on obladaet naibolee tsennymi svojstvami. Sr{sup 90}, otdelennyj ot drugikh produktov deleniya, ochishchaetsya do trebuemoj stepeni chistoty na predpriyatii Komissii po atomnoj ehnergii SSHA v Khehnforde i trasportiruetsya v vide karbonata v ''gorya- chuyu'' kameru(firmy ''Martin''), gde prevrashchaetsya v granulirovannyj titanat. V ehtom protsesse ispol'zuetsya distantsionnoe upravlenie, analogichnoe primenyaemomu v obychnom khimicheskom i keramicheskom proizvodstve. Granuly, zaklyuchennye v kapsuly, pomeshchayutsya v kontejnery tipa ''Khastellou C'' dlya primeneniya v ehnergeticheskikh ustanovkakh s termoehlektricheskim preobrazovaniem ehnergii. Zdes' prikhoditsya stalkivat'sya s neobychnymi ehkspluatatsionnymi problemami, tak kak bol'shie kolichestva obrabatyvaemogo Sr{sup 90} (milliony kyuri v god) obladayut strashnoj radioaktivnost'yu i sozdayut opasnost' zarazheniya. Opisano ustrojstvo prisposoblenij, oborudovaniya, kharakterizuyutsya tekhnologiya i tekhnika bezopasnosti. Opisyvayutsya dannye opyta, priobretennogo vo vremya nedavnej pererabotki pervykh 250 000 kyuri Sr{sup 90} v toplivo dlya generatora SNAP-7 (yadernaya batareya). Privodyatsya takzhe dannye po germetizatsii granul v kontejnerakh, po kalorimetrii, dezaktivatsii i metodike udaleniya otkhodov. (author)

Polymerization of Ethylene in Aqueous Silver-Salt Solution by Cobalt-60 Gamma Radiation; Polymerisation de l'ethylene dans une solution aqueuse de sel d'argent par des rayons gamma du cobalt-60; Polimerizatsiya ehtilena v vodnom rastvore serebryanoj soli pod dejstviem gamma-izlucheniya kobal'ta-60; Polimerizacion del etileno en solucion acuosa de sales de plata por los rayos gamma del cobalto-60.

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Rosinger, S.; Mullner, S. [Farbwerke Hoechst AG, Hoechst (Germany)

1963-11-15

vestigios de oxigeno. La cantidad de polimero formada es proporcional a la dosis absorbida, para una intensidad de dosis constante. La variacion del rendimiento en funcion de l a intensidad de dosis, o sea J, es igual a J{sup 0,5-0,6}. Eliintervalo optimo de temperaturas es el comprendido entre 20 y 30{sup o}C. Por debajo de 0{sup o}C, la reaccion deja de verificarse. La velocidad de agitacion no influye en el rendimiento. El peso especifico de los productos es del orden de 0,94g/cm{sup 3}; se han observado puntos de fusion que oscilan entre 126 y 131{sup o}C. El analisis por absorcion de rayos infrarrojos no indica la existencia de dobles enlaces C=C ni de grupos C-O-H o C=O; se ha detectado un pequeno numero de enlaces C-O-C. El contenido de grupos metilo es del 0,3%. Los polimeros estan probablemente constituidos por largas cadenas ramificadas y presentan viscosidades comprendidas entre 5 y 10. (author) [Russian] Ehtilen, ehtilen-propilenovye smesi i propilen polimerizovali pod oblucheniem v vodnykh rastvorakh serebryanykh solej pri umerennom davlenii. V to vremya kak iz propilena poluchali masla ili voski, ehtilen daval tverdye polimery s vysokim molekulyarnym vesom. Vykhod prevysil 25 g poliehtilena na 1 litr v chas. Pri moshchnosti dozy 7,1 x 10{sup 3} rad/chas ehto sootvetstvuet znacheniyu G (chislo molekul, proreagirovavshikh na kazhdye 100 ehv pogloshchennoj ehnergii), ravnomu 0,6 x 10{sup 5} pri uchete vsej sistemy i prevyshaet 0,5 x 10{sup 6} pri uchete rastvorennogo ehtilena. Obrazovanie polimera rastet pri uvelichenii davleniya i kontsentratsii serebryanoj soli. Rastvor serebryanoj soli mozhno ispol'zovat' povtorno, ne umen'shaya vykhoda polimera. Reaktsiyu ingibiruyut sledy kisloroda. Vykhod polimera proportsionalen pogloshchennoj doze pri postoyanstve moshchnosti dozy. Izmenenie vykhoda v za- visimosti ot moshchnosti dozy (J) ravno J{sup o,5-o,6}. Optimum temperatury lezhit v intervale 20 - 30{sup o}C. Nizhe 0{sup o}C reaktsiya pochti ne idet. Skorost

Measurement of resonance parameters of cross-sections affecting fast-neutron propagation in various media; Mesure des parametres de resonance de sections efficaces lies a la propagation des neutrons dans differents milieux; Izmerenie parametrov rezonansnoj struktury sechenij, vliyayushchikh na rasprostranenie bystrykh nejtronov v sredakh; Medicion de los parametros de resonancia de las secciones eficaces que afectan a la propagacion de los neutrones rapidos en distintos medios

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Nikolaev, M N; Filippov, V V; Bondarenko, I I [Academy of Sciences, Moscow, Union of Soviet Socialist Republics (Russian Federation)

1962-03-15

, prostiraetsya vplot' do neskol'kikh desyatkov kehv dlya tyazhelykh yader i do neskol'kikh Mehv dlya yader srednego vesa. Dlya ucheta rezonansnykh ehffektov pri vychislenii gruppovykh parametrov neobkhodimo znat' ne tol'ko srednie secheniya vzaimodejstviya nejtronov s veshchestvami, no i takie velichiny, kak (1/{Sigma}{sub t}), (1/{Sigma}{sub t}{sup 2}) i drugie - skobki oznachayut usrednenie po ehnergeticheskoj gruppe. Imeyushchiesya v nastoyashchee vremya svedeniya o rezonansnykh parametrakh v oblasti bystrykh nejtronov nedostatochny dlya togo, chtoby ukazannye velichiny mogli byt' vychisleny s neobkhodimoj tochnost'yu. V svyazi s ehtim predstavlyaet interes neposredstvenno e izmerenie velichin (1/{Sigma}{sub t}), (1/{Sigma}{sub t}{sup 2}) i drugikh analogichnykh kharakteristik. V doklade privodyatsya rezul'taty izmerenij ryada parametrov takikh kak ({Sigma}{sub t}), ({Sigma}{sub t}{sup 2}), (1/{Sigma}{sub t}), (1/{Sigma}{sub t}{sup 2}), (1/{Sigma}{sub t}{sup 3}) i drugie, kharakterizuyushchi kh strukturu sechenij ryada yader srednego vesa v oblasti ot 300 kehv do 3 Mehv. Ukazannye velichiny byli polucheny putem analiza krivykh propuskaniya, snyatykh v khoroshej geometrii vplot' do propuskanij {approx}10{sup -2}. Poluchennye dannye ukazyvayut na sil'noe vliyanie rezonansnykh ehffektov na diffuzionnye kharakteristiki veshchestva. (author)

Plasma Confinement in Low-Density C Stellarator Discharges; Confinement du Plasma dans des Decharges a Faible Densite dans le Stellarator C; УДЕРЖАНИЕ ПЛАЗМЫ В ''СТЕЛЛАРАТОРЕ С'' ПРИ НИЗКОЙ ПЛОТНОСТИ РАЗРЯДА; Confinamiento de Plasma en Descargas de Baja Densidad en el Stellarator C

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Stodiek, W.; Grove, D. J.; Kessler, J. O. [Princeton University, Princeton, NJ (United States)

1966-04-15

skorosti poteri plazmy (otkachka) mogut imet' mesto iz-za omicheskih tokov nagreva. Odnako ranee provedennye jeksperimenty pokazali, chto otkachka sushhestvuet dazhe togda, kogda toki (normal'no neobhodimye dlja predotvrashhenija ohlazhdenija i rekombinacii) namnogo nizhe kriticheskih znachenij dlja vozbuzhdenija ionnyh voln. Odin jeksperiment, kotoryj, kazalos', podtverzhdaet gipotezu ionnyh volnovyh kolebanij, dopuskaet al'ternativnoe tolkovanie. Nastojashhij doklad posvjashhen jeksperimentam na ''stellaratore S'', v kotoryh provedeny izmerenija pri blizkih k nulju omicheskih tokah nagreva. Oni provodilis' pri nizkih nachal'nyh davlenijah (2-3 x 10{sup -6} tor) vodoroda i temperaturah jelektronov 1-2 jev. Uderzhivajushhee pole ravnjalos' obychno 12,3 kg; nebol'shoe kolichestvo izmerenij provodilos' pri 35 kg. Vrashhatel'noe preobrazovanie, ravnoe 0,75 {pi} bylo osushhestvleno s pomoshh'ju spiral'nyh obmotok s Script-Small-L =2 i Script-Small-L = 3. V jetih jeksperimentah s nizkoj plotnost'ju i nizkoj temperaturoj v''stellaratore S''sushhestvuet anomal'naja skorost' poter' pri chetyreh uslovijah raboty: 1) omicheskij nagrev, 2) nagrev za schet jelektronnogo ciklotronnogo rezonansa, 3) mikrovolnovyj omicheskij nagrev i 4) bez nagreva. My prihodim k vyvodu, chto ni nalichie aksial'nogo toka maloj velichiny, ni izmenenie plotnosti v predelah 5 x 10{sup 9} Less-Than-Or-Equal-To n{sub e} Less-Than-Or-Equal-To 2 x 10{sup 11} sm{sup -3} ne vlijajut, kak predstavljaetsja, na postojannuju vremeni poter' plazmy poperek uderzhivajushhego magnitnogo polja. Skorost' poter' nel'zja otnesti za schet otsutstvija ravnovesija, svjazannogo s konechnoj provodimost'ju. Vremja polnogo ischeznovenija plazmy vychisljaetsja po formule t 0,9 v/T{sub e} msek (V v kg, T{sub e} v jev; radius plazmy = 5 sm), pravil'nost' kotoroj nabljudalas' Hinnovom i Bishopom pri plotnostjah okolo 10{sup 13} sm{sup -3}. (author)

Transverse Injection Experiment; Injection Transversale; Poslednie dostizheniya v oblasti inzhektirovaniya plazmy poperek magnitnogo polya; Inyeccion Transversal

Energy Technology Data Exchange (ETDEWEB)

Hammel, J. E.; Baker, D. A. [Los Alamos Scientific Laboratory, Los Alamos, NM (United States)

1966-04-15

) [Russian] Dvizhenie plazmy, inzhektiruemoj poperek magnitnogo polja, rassmatrivalos' rjadom avtorov. V rannih jeksperimentah s inzhektirovaniem bystroj (5 Division-Sign 7 * 10{sup 7} sm/sek) i plotnoj (10{sup 14} cm{sup -3}) plazmy poperek magnitnogo polja nabljudalos' pojavlenie poljarizacionnogo jelektricheskogo polja,i struja plazmy peresekala magnitnoe pole s E x B drejfom. Magnitnoe pole slabo vozmushhalos' plazmoj (| {Delta}B/B | <0.1), v to vremja kak skorost' drejfa poperek magnitnogo polja naprjazhennost'ju do 5 kgs byla priblizitel'no ravna skorosti inzhektirovannoj strui. Struja szhimalas' v napravlenii perpendikuljarnom V i V po mere prodvizhenija v oblast' sil'nogo magnitnogo polja. V to zhe vremja izmerenija plotnosti jelektronov interferometricheskim metodom s pomoshh'ju He-Ne lazera pokazyvajut, chto poperechnoe pole naprjazhennost'ju do 7 kgs ne vyzyvaet zametnogo smeshhenija strui v napravlenii polja. Predstavljaet interes povedenie strui, kogda ona peresekaet oblast', v kotoroj magnitnoe pole menjaet svoe napravlenie otnositel'no linii nulevogo polja. Pri peresechenii struej . separatrissy mezhdu dvumja magnitnymi silovymi linijami jelektricheskoe pole dolzhno menjat' napravlenie, esli drejf prodolzhaetsja. Struja ostaetsja v oblasti separatrissy, togda kak vdol' silovyh linij magnitnogo polja izmerjajutsja bol'shie toki, svjazyvajushhie perednjuju chast' strui s posledujushhimi chastjami. Izoljatory, postavlennye dlja preryvanija jetogo toka, pozvoljajut strue dvigat'sja v oblast' polja obratnoj poljarnosti. Ispol'zuja induktivnost', svjazannuju s tokom depoljarizacii strui, mozhno proizvesti razdelenie bystryh i medlennyh komponentov strui. Otsechka medlennogo komponenta strui nabljudaetsja s pomoshh'ju interfe- rometricheskih metodov s primeneniem He-Ne lazera. Izmerenija jelektricheskogo polja v neskol'kih tochkah vdol' techenija pokazyvajut nekotorye iz naibolee slozhnyh osobennostej potoka plazmy. (author)

Electromagnetic Instabilities in a Collisionless Plasma; Instabilites Electromagnetiques des Plasmas sans Collisions; Ehlektromagnitnye neustojchivosti besstolknovitel'nykh plazm; Inestabilidad Electromagnetica en un Plasma sin Colisiones

Energy Technology Data Exchange (ETDEWEB)

Laval, G.; Pellat, R.; Vuillemin, M. [Centre d' Etudes Nucleaires de Fontenay-aux-Roses, Seine (France)

1966-04-15

son constantes a lo largo de las lineas de comente. En geometria plana, por ejemplo, las funciones de distribucion de las particulas dependen solamente de la energia y del momento del hamiltoniano de una particula segun el eje OZ. El equilibrio es no homogeneo en OX las deformaciones son invariantes segun OZ, esto es, la direccion de las corrientes. Se construye una funcion de Liapounoff cuya reduccion alminimo permite obtener todos los estados de estabilidad marginal, asi como una condicion suficiente de estabilidad. Se demuestran asilos resultados propuestos en la literatura relativos a los argumentos de modos marginales o de equilibrios vecinos. Se calcula tambien el indice de crecimiento de las inestabilidades. Para las 'estricciones tetas con campo inverso' se halla un indice de crecimiento del orden de [v{sub e}(th)/{lambda}](a{sub e}/{lambda}){sup 3/2}; {lambda} es la escala delgradientededensidad del plasma, v{sub e}(th) y a{sub e} son la velocidad termica y el radio de Larmor de los electrones. El resultado concuerda mejor con las observaciones experimentales que la teoria resistiva de Furth, Killeen y Rosenbluth. El indice de crecimiento de las inestabilidades de la 'estriccion de nucleo rigido' es del orden de i [v{sub i}(th)/{lambda}](m{sub e}/{beta}m{sub i}){sup 1/2}(a{sub i}/{lambda}){sup 2}; m{sub e} y m{sub i} son las masas de los electrones y de los iones, y la definicion de {beta} es la habitual. En los experimentos MEST y EPPE de Fontenay-aux-Roses, este indice de crecimiento es mucho mas lento que el de los modos de cizallamiento resistivos. (author) [Russian] Izuchaetsja ustojchivost' neodnorodnoj i besstolknovitel'noj plazmy po otnosheniju k jelektro- . magnitnym vozmushhenijam. Makroskopicheskie parametry ravnovesija zavisjat lish' ot koordinaty ortogonal'noj sistemy, poskol'ku nesomyj plazmoj tok napravlen po drugoj osi koordinat. Rassmatrivaemye vozmushhenija postojanny po vsem linijam toka. Naprimer, v ploskoj geometrii funkcii raspredelenija

Preface: SciDAC 2009

Science.gov (United States)

Simon, Horst

2009-07-01

and posters goes to the teams of researchers, the success of this year's conference is due to the strong efforts and support from members of the 2009 SciDAC Program Committee and Organizing Committee, and I would like to extend my heartfelt thanks to them for helping to make the 2009 meeting the largest and most successful to date. Program Committee members were: David Bader, LLNL; Pete Beckman, ANL; John Bell, LBNL; John Boisseau, University of Texas; Paul Bonoli, MIT; Hank Childs, LBNL; Bill Collins, LBNL; Jim Davenport, BNL; David Dean, ORNL; Thom Dunning, NCSA; Peg Folta, LLNL; Glenn Hammond, PNNL; Maciej Haranczyk, LBNL; Robert Harrison, ORNL; Paul Hovland, ANL; Paul Kent, ORNL; Aram Kevorkian, SPAWAR; David Keyes, Columbia University; Kwok Ko, SLAC; Felice Lightstone, LLNL; Bob Lucas, ISI/USC; Paul Mackenzie, Fermilab; Tony Mezzacappa, ORNL; John Negele, MIT; Jeff Nichols, ORNL; Mike Norman, UCSD; Joe Oefelein, SNL; Jeanie Osburn, NRL; Peter Ostroumov, ANL; Valerio Pascucci, University of Utah; Ruth Pordes, Fermilab; Rob Ross, ANL; Nagiza Samatova, ORNL; Martin Savage, University of Washington; Tim Scheibe, PNNL; Ed Seidel, NSF; Arie Shoshani, LBNL; Rick Stevens, ANL; Bob Sugar, UCSB; Bill Tang, PPPL; Bob Wilhelmson, NCSA; Kathy Yelick, NERSC/LBNL; Dave Zachmann, Vista Computational Technology LLC. Organizing Committee members were: Communications: Jon Bashor, LBNL. Contracts/Logistics: Mary Spada and Cheryl Zidel, ANL. Posters: David Bailey, LBNL. Proceedings: John Hules, LBNL. Proceedings Database Developer: Beth Cerny Patino, ANL. Program Committee Liaison/Conference Web Site: Yeen Mankin, LBNL. Tutorials: David Skinner, NERSC/LBNL. Visualization Night: Hank Childs, LBNL; Valerio Pascucci, Chems Touati, Nathan Galli, and Erik Jorgensen, University of Utah. Again, my thanks to all. Horst Simon San Diego, California June 18, 2009

Radioautography in the Study of Radioisotopically-Tagged Substances in Insect Control; L'autoradiographie dans l'etude de substances marquees au moy en de radioisotopes utilisees dans la lutte contre les insectes; Primenenie radioavtografii pri izuchenii substantsij, mechennykh radioizotopami, v bor'be s nasekomymi; La autorradiografia en el estudio de las sustancias marcadas con radioisotopos utilizadas en la lucha contra los insectos

Energy Technology Data Exchange (ETDEWEB)

Joftes, D. L. [New England Deaconess Hospital, Boston, MA (United States)

1963-09-15

histologicos corrientes. Un ligero desplazamiento ascendente del foco pone de relieve los detalles de la autorradiografia que, de este modo, se puede estudiar en relacion con el tejido. En la memoria se describen en detalle las tecnicas recomendadas y el sencillo equipo necesario, que suele encontrarse en todos los laboratorios. (author) [Russian] Pri otnositel'no nebol'shikh zatratakh truda bolee novye,uproshchenie metody radioavtografii obespechivayut bol'shuyu chuvstvitel'nost' i tochnost' na mikroskopicheskom urovne vo mnogikh fazakh issledovanij odnokratno i dvukhkratno mechennykh radioizotopami insektitsidov, naprimer pri issledovanii pogloshcheniya, peremeshcheniya, metabolizma i opredelenii ostatkov insektitsidov v rasteniyakh, u nasekomykh i tavotnykh. Fiziologiya i biokhimiya obluchennykh nasekomykh yavlyayutsya drugimi oblastyami primeneniya radioavtografii. Vozdejstvie oblucheniya, osobenno na generativnye organy, izuchaetsya s pomoshch'yu mechennogo tritiem timidina. V to vremya kak metody scheta dayut mnogo informatsii o nalichii i kolichestve radioizotopov, s pomoshch'yu radioavtografii mozhno poluchit' dannye o fakticheskikh mestakh ikh otlozheniya v tkanyakh ili dazhe v chastyakh kletok. Poluchenie takoj razreshayushchej sposobnosti vozmozhno na obychnykh postoyannykh gistologicheskikh preparatakh, v to vremya kak pri primenenii metodov scheta dlya polucheniya tochnogo rezul'tata trebuetsya razrushenie obraztsa. Standartnaya radioavtografiya osobenno udobna dlya proslezhivaniya malykh kolichestv izotopov, sostavlyayushchikh doli mikrokyuri, ochen' slabykh izluchatelej, takikh, kak radioaktivnyj uglerod (C{sup 14}) i tritij (H{sup 3}), togda kak dlya rabot s ochen' slabymi izluchatelyami s primeneniem metodov scheta trebuyutsya ochen' dorogie i slozhnye pribory. Metod ne imeet ogranichenij v otnoshenii izotopov, primenyaemykh dlya mecheniya, tak kak dazhe izlucheniya tritiya i C''1''4 budut fiksirovat'sya na yadernoj fotoehmul'sii. Dejstvitel'no, tritij i C''1

Beta-Excited Sources of Electromagnetic Radiation; Sources de rayonnements electromagnetiques excites par des particules beta; Vozbuzhdennye beta-chastitsami istochniki ehlektromagnitnogo izlucheniya; Fuentes de radiacion electromagnetica excitadas por particulas beta

Energy Technology Data Exchange (ETDEWEB)

Cameron, J F; Rhodes, J R [Physics Group, Isotope Research Division, (AERE), Wantage Research Laboratory, Wantage, Berks (United Kingdom)

1962-01-15

incluyen cuadros que permiten escoger la fuente optima para absorbentes de distintos espesores. (author) [Russian] Avtory dayut opisanie vozbuzhdennykh beta-chastitsami istochnikov ehlektromagnitnogo izlucheniya v ehnergeticheskom rajone ot 1 do 200 kehv i prigodnykh dlya promyshlennogo ispol'zovaniya. V kachestve istochnikov beta-chastits byli vzyaty tritij, prometij-147, kripton-85, tallij-204 i strontsij-90+ ittrij-90, poskol'ku oni imeyut prodolzhitel'nyj period poluraspada, nebol'shuyu stoimost', vysokuyu udel'nuyu aktivnost' i legkost' ikh polucheniya. Dlya izgotovleniya vozbuzhdennykh beta-chastitsami istochnikov staralis' dostignut' kompromissa mezhdu prakticheskimi trebovaniyami konstruktsii i nailuchshej teoreticheskoj ehffektivnost'yu v dannoj ehnergeticheskoj zone. V dannoj annotatsii avtory raz{sup y}asnyayut putem podscheta kolichestva protonov, izluchaemykh beta-chastitsami, i predusmatrivayut vnesenie izmenenij v ehti podschety dlya samoabsorbtsii rentgenovskogo izlucheniya. EHti podschety uchityvayut v to zhe samoe vremya tormoznoe izluchenie i kharakteristicheskie flyuorestsentnye luchi, maksimal'nyj vykhod kharakteristicheskikh luchej, dostigaemyj dlya mishenej Z ot 40 do 60. Nakonets, oni utverzhdayut, chto v zhelaemoj ehnergeticheskoj zone poluchayut kak luchshij vykhod fotonnogo izlucheniya so ''sloenymi'' mishenyami, sloj polovinnogo oslableniya kotorogo sootvetstvuet dline probega 1-2 beta. Alyuminij, serebro i zoloto s proizvodstvennoj tochki zreniya yavlyayutsya podkhodyashchimi ehlementami dlya pokrytiya istochnikov. Oni takzhe dayut udovletvoritel'nye vykhody tormoznogo izlucheniya i rentgenovskogo izlucheniya i raspredelenie po razlichnym ehnergeticheskim zonam v radiuse ot 0 do 200 kehv pri pravil'nom ob{sup e}dinenii s vysheukazannymi beta-izluchatelyami. Dayutsya nekotorye ehnergeticheskie spektry i privodyatsya krivye pogloshcheniya v alyuminii i zheleze dlya nailuchshikh kombinatsij istochnikov mishenej. Byla obnaruzhena neznachitel

Effects of Incorporated Radioactivity and External Radiation on Heterogeneous Catalysis; Effets de la radioactivite incorporee et des rayonnements externes sur la catalyse heterogene; Vliyanie vvedennoj radioaktivnosti i vneshnego oblucheniya na geterogennyj kataliz; Efectos de la radiactividad incorporada y de la irradiacion externa sobre la catalisis heterogenea

Energy Technology Data Exchange (ETDEWEB)

Krohn, N. A.; Wymer, R. G. [Oak Ridge National Laboratory, Oak Ridge and University of Tennessee, Knoxville, Tennessee (United States)

1963-11-15

aktivirovannykh alyumokhromovykh katalizatorakh. Izucheny ehffekty vvedeniya v katalizator radioaktivnykh izotopov i predvaritel'nogo gamma-oblucheniya ot istochnika Co''6''0. Sud'fatmagnievyj katalizator i katalizator smeshannogo tipa sul'fat magniya + sul'fat natriya, soderzhashchie do 45,5 mkkyuri (S''3''5)/r, pri raschete na edinitsu poverkhnosti menee aktivny, chem katalizatory togo zhe sostava, no ne soderzhashchie radioaktivnykh izotopov. Oslablenie kataliticheskoj aktivnosti sokhranyalos' dazhe posle togo, kak radioaktivnost' sushchestvenno pala, dalee, pri obluchenii rentgenovskimi luchami, kotoroe provodilos' v protsesse reaktsii, nikakikh izmenenij v kataliticheskoj aktivnosti ne nablyudalos'. Na osnovanii ehtikh dannykh sdelan vyvod, chto ehmissiya beta-chastits iz katalizatora v protsesse ego ispol'zovaniya ne okazyvaet nikakogo vliyaniya. Soobshcheniya ob usilenii kataliticheskoj aktivnosti sleduet otnesti za schet togo, chto pri prigotovlenii katalizatorov u tekh iz nikh, kotorye soderzhali radioaktivnye izotopy, vozmozhno poluchalas' bol'shaya ploshchad' poverkh- nosti, chem u tekh, kotorye ne soderzhali radioaktivnykh izotopov. Ehto obstoyatel'stvo ne bylo prinyato vo vnimanie. Predvaritel'noe gamma-obluchenie ot istochnika Co''6''0 dozoj 10''1''1 erg/g ne okazalo vliyaniya na kataliticheskuyu aktivnost'. S drugoj storony, predvaritel'noe obluchenie gamma-luchami ot istochnika Co{sup 60} alyumokhromovykh katalizatorov dozoj 4,2 x 10{sup 11} erg/g usililo kataliticheskuyu aktivnost' pochti na 34%, pri 485{sup o}C. V to zhe vremya vvedenie v katalizator do 148 mkkyuri (Pm{sup 147} )/g katalizatora ne okazyvalo pochti nikakogo vozdejstviya. V ehtom sluchae ne nablyudalos' skol'ko-nibud' zametnogo vliyaniya izlucheniya na ploshchad' poverkhnosti ili na kazhushchuyusya ehnergiyu aktivatsii. (author)

Latitudinal effect in the transport of radiocarbon from stratosphere to troposphere; Eflet de la latitude sur le transport du radiocarbone de la stratosphere a la troposphere; Vliyanie geograficheskoj shiroty na peremeshchenie radioaktivnogo ugleroda iz stratosfery v troposferu; Efecto de la latitud sobre el transporte del carbono radiactivo de la estratosfera a la troposfera

Energy Technology Data Exchange (ETDEWEB)

Tauber, Henrik [Carbon-14 Dating Laboratory, Dept. of Natural Sciences, National Museum, Copenhagen (Denmark)

1962-01-15

que se observan en los anillos concentricos de los arboles de los ultimos 1300 anos. (author) [Russian] Bol'shoe kolichestvo vydelennogo vzryvami bomb ugleroda-14 (priblizitel'no 3 Mc), kotoryj byl vybroshen glavnym obrazom v stratosferu, daet vozmozhnost' issledovat' puti pereneseniya uglekislogo gaza iz stratosfery v troposferu, a takzhe opredelit' vremya smeshivaniya v stratosfere i v troposfere. EHto dostigaetsya putem zamera tempa uvelicheniya soderzhaniya C{sup 14} v atmosfernom CO{sub 2} i v tkanyakh rastenij. Takie zamery sushchestvuyut dlya mnogikh mest. Izmerenie kolichestva ugleroda-14 na khlebnykh zlakakh v Danii pokazalo, chto v Danii za 1958-59 gg. soderzhanie S14 uvelichilos' na mnogo protsentov bol'she, chem srednee uvelichenie dlya vsego zapadnogo polushariya. K letu 1959 goda soderzhanie C{sup 14} prevysilo na 33% uroven' 1954 goda. Znachitel'nye uvelicheniya soderzhaniya C{sup 14} v 1958 i 1959 godakh, veroyatno, yavlyayutsya parallel'yu s pikovym vypadeniem strontsiya-90, obnaruzhennogo vesnoyu v te zhe samye gody v severnoj umerennoj zone. Prevyshenie soderzhaniya C{sup 14} v datskikh zlakakh svyshe urovnya dlya vsego zapadnogo polushariya zastavlyaet dumat', chto zagryaznenie C{sup 14} izmenyaetsya v zavisimosti ot geograficheskoj shiroty. EHto sootvetstvuet zaklyucheniyam, svyazannym s vypadeniem chastits, kotorye pri- nosyatsya iz stratosfery analogichnym tsirkulyatsionnym mekhanizmom. Takoe vozdejstvie geograficheskoj shiroty daet vozmozhnost' prosledit' puti pereneseniya radioaktivnogo ugleroda iz stratosfery v troposferu putem neposredstvennogo zamera aktivnosti C{sup 14} troposfericheskogo CO{sub 2} iz tselogo ryada obraztsov, sobiraemykh na shiroko rasseyannoj seti stantsij. V doklade daetsya otsenka masshtaba vozmozhnogo vozdejstviya geograficheskoj shiroty v otnoshenii ustojchivogo polozheniya do vzryva bomby. EHto vozdejstvie mozhet yavit'sya chast'yu ob{sup y}asneniya kratkosrochnykh ostsillyatsij v aktivnosti ugleroda-14

A 256-channel measuring and recording system; Un systeme de mesure et d'enregistrement a 256 canaux; Sistema izmerenij i registratsii na 256 kanalov; Sistema de medicion y registro de 256 canales

Energy Technology Data Exchange (ETDEWEB)

Krasheninnikov, I S; Kuronkin, S S; Pasechnikova, I P; Safonovi, O A; Tuchina, A S

1962-04-15

sistema izmeritel'nykh i registriruyushchikh blokov, prednaznachennaya dlya shirokogo kruga fizicheskikh ehksperimentov. Osnovoj sistemy yavlyaetsya 256 kanal'nyj blok registratsii s emkost'yu kanala 2{sup 16} i blok upravleniya, vypolnennye na ferritakh i tranzistorakh. Arifmeticheskoe ustrojstvo bloka registratsii obespechivaet rabotu kak v rezhime summirovaniya, tak i v rezhime vychitaniya. Vremya polnogo tsikla obrashcheniya k pamyati - 20 mksek. V ustrojstve upravleniya osnovnye komandy, takie kak ustanovka registrov, schityvanie, zapis' i t.d., mogut kombinirovat'sya v lyuboj posledovatel'nosti, chto pozvolyaet znachitel'no rasshirit' funktsii pribora po sravneniyu s izvestnymi priborami. Taktovaya chastota ustrojstva upravleniya zadaetsya kvartsevym generatorom na 4 mggts. V kachestve izmeritel'nykh blokov v sisteme ispol'zuyutsya sleduyushchie: preobrazovatel' amplitud impul'sov v tsifrovoj kod so vremenem preobrazovaniya 0,25 mksek na kanal, integral'noj nelinejnost'yu luchshe {approx} 0,1%, differentsial'noj nelinejnost'yu menee 4%, drejfom nulya menee 0,2 v i nestabil'nost'yu shiriny kanalov menee 0,4% v techenie dlitel'nogo vremeni. Skhema preobrazovatelya vypolnena na lampakh. Vremennoj selektor imeet shirinu kanala ot 1 do 64 mksek. Nestabil'nost' shiriny kanalov menee 10{sup -4}. Logika skhemy dopuskaet registratsiyu nepolnykh impul'sov v kanal pri shirine kanala bolee 8 mksek. Skhema vypolnena na tranzistorakh. Preobrazovatel' malykh vremennykh intervalov (10{sup -9} - 10{sup -7} sek) v edinichnyj tsifrovoj kod imeet vremennoe razreshenie {approx} 2 . 10{sup -5} sek i stabil'nost' shiriny kanala luchshe 10{sup -2}. Vyvod informatsii iz bloka pamyati vozmozhgn v analogovoj forme na ostsillograficheskuyu trubku i v tsifrovom vide na pechatayushchuyu mashinku i indikatsionnye lampochki. (author)

A transistorized 1024-channel neutron time-of-flight analyser; Selecteur transistorise de temps de vol pour neutrons, a 1024 canaux; Nejtronnyj analizator vremeni proleta s 1024 kanalami i s perevodom skhemy na tranzistory; Aparato transistorizado de 1024 canales para analizar tiempos de vuelo de neutrones

Energy Technology Data Exchange (ETDEWEB)

Giannelli, G [European Atomic Energy Community, CCR, Ispra (Italy)

1962-04-15

adaptabilidad y que sea posible modificar o ampliar si lo precisaran los experimentadores. (author) [Russian] Daetsya opisanie nejtronnogo analizatora vremeni proleta s 1024 kanalami i s perevodom skhemy na tranzistory. EHtot pribor byl razdelen na dve absolyutno nezavisimye chasti: analog k tsifrovomu preobrazovatelyu (ATSP), kotoryj izmeryaet vremya proleta, i 1024-kanal'noe nakopitel'noe ustrojstvo na ferritovykh serdechnikakh. Takim putem vykhodnye signaly, postupayushchie iz ATSP, mogut byt' zaregistrirovany na magnitnoj lente vmeste s vykhodnymi signalami iz drugikh ATSP, izmeryayushchikh drugie fizicheskie kolichestva, otnosyashchiesya k tomu zhe yadernomu prevrashcheniyu pri obshchem kolichestve kanalov, prevyshayushchem moshchnost' nakopitel'nogo ustrojstva. Analog tsifrovogo preobrazovatelya snabzhen vremennym zapominayushchim ustrojstvom, kotoroe blagodarya svoemu regulirovaniyu skorosti signalov: 1) pozvolyaet dostich' velichiny mertvogo vremeni lish' 0,5 {mu} v sekundu, kogda analog tsifrovogo preobrazovatelya svyazan neposredstvenno s 1024-kanal'nym nakopitel'nym ustrojstvom; i 2) sposobstvuet luchshemu ispol'zovaniyu samoj magnitnoj lenty, kogda analog tsifrovogo preobrazovatelya privodit v dejstvie magnitofon. Vremennoe zapominayushchee ustrojstvo obladaet sposobnost'yu zapominat' s chetyrekhkratnoj tochnost'yu (vplot' do shestnadtsati dvoichnykh razryadov). SHirina kanala analizatora kolebletsya ot 0,5 do 48 {mu}s. 1024 kanala mogut byt' razdeleny na dve odinakovye gruppy po 512 kanalov, kazhdaya iz kotorykh soedinyaetsya s dvumya detektorami. Vremennoe zapominayushchee ustrojstvo dopuskaet odnovremennuyu zapis' signalov dvumya gruppami. Kanaly mogut byt' takzhe podrazdeleny po vremeni proleta na dve gruppy, iz kotorykh pervaya gruppa (16 kanalov) ispol'zuetsya dlya zapisi chisto nulevogo vremeni proleta, togda kak vtoraya gruppa mozhet byt' ispol'zovana v lyuboj pozitsii po obshchim intervalam vremeni mezhdu proletami. CHislo kanalov, ispol'zuemykh dlya zapisi

Preliminary Studies of the Field Movement of the Olive Fruit Fly (Dacus Oleae Gmel,) by Labelling a Natural Population with Radioactive Phosphorus (P{sup 32}); Etudes preijminaires sur les deplacements de la mouche de l'olive (Dacus Oleae Gmel. ) par marquage d'une population naturelle au radiophosphore ({sup 32}P); Predvaritel'noe issledovanie polevogo peremeshcheniya olivkovoj fruktovoj mukhi (Dacus Oleae Gmel.) posredstvom mecheniya estestvennoj populyatsii radioaktivnym fosforom (P{sup 32}).; Estudio preliminar de la dispersion de moscas del ouvo (Dacus Oleae Gmel. ) mediante la marcacion de poblaciones naturales con {sup 32}p.

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Pelekassis, Constantine E.D.; Mourikos, P. A.; Bantzios, D. N. [Economic Entomology Laboratory, Benaki Phytopathological Institute, Athens (Greece)

1963-09-15

pinos actuan de barrera para los adultos de la Dacus oleae. (author) [Russian] Provedeny predvaritel'nye ehksperimenty dlya polucheniya pervykh dannykh o polevom peremeshchenii olivkovoj fruktovoj mukhi Dacus oleae (Gmel.). Ehksperimenty byli provedeny v rajone proizrastaniya oliv v Rovnee, Ehvina, Gretsiya, v techenie oseni 1961 goda, kogda obychno nablyudaetsya maksimal'naya aktivnost' vzroslykh osobej mukhi. Dlya mecheniya estestvennykh populyatsij vzroslykh osobej byl prigotovlen sostav Stehli j 7, sostoyashchij iz smesi P{sup 32} v vide H{sub 3}P{sup 32}O{sub 4} v solyanoj kislote i v gidroliehate belka. 14 oktyabrya 1961 goda vetvi 30 olivkovykh derev'ev, vybrannykh na polugornoj olivkovoj plantatsii v Rovnee, byli obrabotany rastvorom primanki, mechennoj P{sup 32}. Dlya otlova mukh ispol'zovalis' 500 lovushek Makfehjla s 3% diammonijfosfata v kachestve' pri manki. Lovushki byli rasstavleny v olivkovykh roshchakh vsego rajona Rovnee, a takkhe v sosednikh rajonakh (v lesakh i v olivkovykh roshchakh)na rasstoyanii do 10 km ot mechenykh derev'ev. Bylo sobrano 350 mechenykh mukh oboikh polov v 48 lovushkakh vo vremya 15 proverok lovushek v period mezhdu 15 oktyabrya i 16 noyabrya. Mechenye mukhi, pojmannye s 1 po 35 den' posle obrabotki derev'ev indikatorom, sostavlyali 2% obshchego kolichestva mukh, otlovlennykh v 48 lovushkakh ili 0,15% obshchego kolichestva mukh, otlovlennykh v 298 lovushkakh vo vsem rajone Rovies. 73% mechenykh mukh popadi v lovushki v techenie pervykh 10 dnej posle obrabotki derev'ev indikatorom. Mechenye mukhi byli obnaruzheny na rasstoyanii 44 300 m ot mesta, gde nakhodilis' mechenye derev'ya (maksimal'noe rasstoyanie) . Radioaktivnost' mechenykh mukh sostavlyala ot 258 do 9549 otsch/min (fonovoe izluchenie sostavlyaet 8 - 2 1 otsch/min). Ehti predvaritel'nye ehksperimenty podtverdili sushchestvovanie bolee ili menee postoyannogo mestnogo peremeshcheniya (rasseivaniya) mukh ot polugornoj roshchi k blizlezhashchim ravninam ili k pribrezhnym

A Survey of the Fuel Cycles Operated in the United Kingdom; Etude d'ensemble sur les cycles de combustible au Royaume-Uni; Obzor toplivnykh tsiklov, ispol'zuemykh v soedinennom korolevstve; Estudio de los ciclos de combustible utilizados en el Reino Unido

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Allday, C. [United Kingdom Atomic Energy Authority, Risley, Warrington, Lancs (United Kingdom)

1963-10-15

enriquecido tambien se puede utilizar como combustible oxido de uranio natural enriquecido con plutonio. En la memoria se resume la experiencia adquirida en la produccion de combustible de oxido para el AGR y en la explotacion del reactor y los planes para la regeneracion del combustible. Se examina la posibilidad de utilizar combustible de plutonio y se analizan las consecuencias que tendria su adopcion sobre los costos y el ciclo del combustible. Por ultimo, se destaca la importancia de los reactores Magnox y AGR en el programa energetico del Reino Unido. (author) [Russian] a ) Prirodnyj uran/topdivnyj tsikl ''Magnoks''. Soedinennoe Kor olevstvo izb ralo reaktor na prirodnom urane s grafitovym zam edli tel em i gazovy m okhlazhdeniem v kachestve osnovy programmy po yadernoj ehnergii. Ono ehkspluatirovalo ehti reaktory v Kolder-Kholle i Chepelkrosse v techenie semi det; reaktory v Berkli i Braduehlle v nastoyashchee vremya nakhodyatsya v stadii ehkspluatatsii, a reaktory v semi drugikh mestakh v stadii stroitel'stva ili planirovaniya. Toplivo dlya ehtikh reaktorov proizvoditsya na zavode v Springfilde i zatem perevozitsya dlya zagruzki k mestopolozheniyu reaktora. Posle oblucheniya i razgruzki toplivo transportiruetsya na zavod v Uindskejl dlya otdeleniya urana i plutoniya ot produktov deleniya. Daetsya opisanie opyta CK v oblasti konstruktsii i proizvodstva toplivnykh ehlementov, ehkspluatatsii reaktora, transportirovki obluchennogo topliva i posleduyushchej obrabotki topliva. Upominaetsya o povedenii topliva v reaktore i ob al'ternativnykh programmakh zagruzki l razgruzki toplivnykh ehlementov; ehta tema razrabatyvaetsya v drugikh trudakh. b) Reaktory, ispol'zuyushchie obogashchennoe toplivo. Soedinennoe Korolevstvo razrabatyvaet usovershenstvovannyj reaktors gazovym okhlazhdeniem AGE, prototip kotorogo voshel v stroj v 1963 godu. Toplivo proizvoditsya iz obogashchennoj okisi urana, zaklyuchennoj v obolochku iz nerzhaveyushchej stali, i Sudet pererabatyvat'sya posredstvom

Use of Isotopes for Investigating the Behaviour and Ecology of Insect Pests in Some Recent Studies; Emploi des radioisotopes dans des recherches recentes sur le comportement et l'ecologie des insectes nuisibles; Ispol'zovanie radioizotopov dlya issledovaniya povedeniya i ehkologii nasekomykh-vreditelej v Irane; Empleo de isotopos en estudios recientes sobre el comportamiento y la ecologia de las plagas insectiles

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Quraishi Sayeed, M. [Cento Institute of Nuclear Science, Teheran (Iran, Islamic Republic of)

1963-09-15

in{sup e}ktsii slyuny v rastvor glyukozy vo vremya pitaniya. Eurygaster intergriceps yavlyaetsya opasnym vreditelem pshenitsy v Irane, Pakistane i na Srednem Vostoke. S pomoshch'yu pshenitsy, mechennoj P{sup 32}, byl izuchen rezhim pitaniya kukolki na ee pervovozrastnoj stadii. Byli takzhe izucheny drugie vidy pishchi, mechennoj radioaktivnymi veshchestvami, i obnaruzheno, chto pitanie neobkhodimo v period pervoj lin'ki, esli dazhe pishcha sostoit iz vody, vpitannoj fil'troval'noj bumagoj. (author)

Preliminary Note on the Use of Radioisotopes to Study Some Cotton-Plant Pests in Africa; Note preliminaire sur l 'utilisation des radioisotopes dans l 'etude des parasites du cotonnier en afrique; Predvaritel'nye zamechaniya o primenenii radioizotopov dlya izucheniya nekotorykh vreditelej khlopchatnika v afrike.; Nota preliminar sobre el empleo de radioisotopos en el estudio de parasitos del algodonero en africa

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Delattre, R. [Institut de Recherches du Coton et Textiles, Paris (France)

1963-09-15

rasteniem v techenie neskol'kikh chasov sostavlyalo okolo 10%. Razlichnye fillofagovye gusenitsy (Sylepta derogata, Prodenla litura) He nakaplivayut radioaktivnosti, odnako pitayushchiesya plodonosnymi organami gusenitsy (Heliothis armigera. Earias insulana, Diparopsis watersi, i t.d.) legko obnaruzhivayutsya spustya tri mesyatsa posle primeneniya ehtogo metoda. Vo vtorom opyte P{sup 35} i S{sup 35} byli ispol'zovany dlya vzroslykh kustov khlopchatnika kak raz nakanune perioda estestvennogo perekhoda Diparopsis v diapauzu. Rezul'taty pozvolyayut nadeyat'sya na to, chto udastsya bez izlishnikh trudnostej vyyavit' sredi iz{sup y}atykh iz zemli kukolok tekh, kotorye pitalis' khlopchatnikom do ego mecheniya i kotorye poehtomu projdut diapauzu. Neobkhodimo provedenie obratnoj proverki, kotoraya sostoit v tom, chtoby v techenie sezona pometit' khlopchatnik na pole, uzhe nakhodivshemsya pod ehtoj kul'turoj v proshlom godu. V dannom sluchae kukolka bez diapauzy okazyvaetsya mechenoj. V nastoyashchee vremya provodyatsya takzhe dopolnitel'nye nablyudeniya za drugimi vreditelyami khlopchatnika. (author)

The adsorption of hydrogen on a molecular sieve at -196{sup o}C and the observation of an isotope effect; Adsorption d'hydrogene sur un tamis moleculaire a -196{sup o}C et observation d'un effet isotopique; Absorbtsiya vodoroda na molekulyarnom fil'tre pri -196{sup o} i nablyudenie rezul'tatov dejstviya izotopov; Adsorcion de hidrogeno en un tamiz molecular a -196{sup o}C y observacion de un efecto isotopico

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Duncombe, W G [Wellcome Research Laboratories, Beckenham, Kent (United Kingdom)

1962-03-15

adsorbio en el tamiz molecular cerca del 99 % del hidrogeno inicial antes de comenzar la desorcion por bombeo. Por lo tanto, parece probable que el considerable fraccionamiento observado tenga lugar principalmente durante la desorcion y que el efecto carezca de importancia cuando el tamiz se emplea para manipular pequenos volumenes de isotopos del hidrogeno ya que, por lo general, la desorcion total se efectuara por calentamiento. (author) [Russian] Ispytyvalsya molekulyarnyj fil'tr Linde 4 A v kachestve vozmozhnogo sredstva obrashcheniya s nebol'shimi ob{sup e}mami izotopov vodoroda v vakuume, vmesto primenyayushchegosya v nastoyashchee vremya nasosa Toiplera. Davlenie ravnovesiya (P) izmeryaetsya razlichnymi ob{sup e}mami (V) vodoroda, absorbiruemogo odnim grammom fil'tra pri temperature -196{sup o}. EHksperimenty s aktivirovannym drevesnym uglem pokazyvayut preimushchestvo fil'tra kak absorbenta vodoroda. Odin gramm fil'tra v sisteme s ob{sup e}mom v 500 ml absorbiruet okolo 97 % odnogo ml obraztsa vodoroda. Absorbtsiya neznachitel'na pri temperature -78{sup o}, i desorbtsiya yavlyaetsya kolichestvennoj i b'kpro protekaet pri komnatnoj temperature. Vozmozhnost' rezul'tatov dejstviya izotopa izuchalas' putem absorbirovaniya izmeryaemykh ob{sup e}mov tritiya (5 millikyuri/mol') pri ravnomernom davlenii okolo 5 mm, pri ehtom proiskhodilo vykachivanie sistemy v periode do 15 minut i izmerenie ob{sup e}ma ostatochnogo vodoroda. Poslednij prevrashchalsya kolichestvenno v vodu, zatem v butan i gaz. Udel'naya aktivnost' byla vsegda vyshe, chem aktivnost' tritiya, kotoryj prokhodil 10 tsiklov absorbtsii i desorbtsii bez promezhutochnogo vykachivaniya s tem, chtoby ne bylo nikakikh chistykh poter' gaza. EHto imelo takuyu zhe udel'nuyu aktivnost', kak u neobrabotannogo tritiya, vzyatogo iz rezervnoj kolby. Bylo obnaruzheno, chto logarifm (ostatochnyj ob{sup e}m/nachal'nyj ob{sup e}m) proportsionalen 1/logarifm (ostatochnaya udel'naya aktivnost'/ nachal'naya udel'naya aktivnost') v

Effects of Ionizing Radiation on Insects and Other Arthropods; Effet des rayonnements ionisants sur les insectes et autres arthropodes; Vozdejstvie ioniziruntsej radiatsii na nasekomykh i drugikh chlenistonogikh; Efectos de las radiaciones ionizantes sobre los insectos y otros artropodos

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Stone, William E. [United States Department of Agriculture Laboratories, Mexico City, D.F (Mexico)

1963-09-15

radiaciones gamma en la capacidad de reproduccion, los instintos sexuales, el vigor y la longevidad de la mosca oriental de la fruta, Dacus dorsalis Hendel, la mosca del melon, Dacus cucurbitae Coq., la mosca mediterranea, Ceratitis capitata Wied., la mosca de la fruta mejicana, Anastrepha ludens Loew, y el Anopheles quadrimaculatus Say, e indica los resultados de la campada de exterminio obtenidos en la practica liberando machos esteriles. Revisa tambien los progresos realizados en los Estados Unidos en la campana para exterminar la Cochliomya hominivorax Cqrl., y en los estudios para desarrollar cepas vigorosas, marcadas geneticamente, que permitan identificar con facilidad las moscas esteriles liberadas. Se discuten tambien los resultados de las investigaciones sobre la irradiacion de otras seis especies que atacan a frutas, verduras y otros cultivos agricolas y forestales, otras tres que atacan al ganado, y tres mas que atacan principalmente al hombre. Se trata asimismo de la irradiacion del escorpion, Centruroides limp idus Karsch y del aracnido Amblyomma americanum L., y de la posibilidad de emplear radiaciones ionizantes como tratamiento de cuarentena para las frutas y verduras infestadas con la mosca de la fruta y para los mangos infestados con el gorgojo Stemochetus mangiferae Fabricius. (author) [Russian] V nastoyashchee vremya provodyatsya issledovaniya vozmozhnosti primeneniya metoda sterilizatsii posredstvom oblucheniya dlya unichtozheniya populyatsij tselogo ryada nasekomykh, porazhaptsikh cheloveka, zhivotnykh i razlichnye kul'tury. Ehti predvaritel'nye issledovaniya pokazali, chto ioniziruyushchee obluchenie privodit k sterilizatsii, no chto dlya ehtoj tseli trebuyutsya chrezvychajno raznoobraznye dozy. Okazalos', chto v nekotorykh sluchayakh radiatsionnye povrezhdeniya mogut isklyuchit' vozmozhnost' primeneniya ehtogo metoda u nekotorykh nasekomykh. Prepyatstvie, kotoroe zachastuyu prikhoditsya preodolevat', zaklyuchaetsya v otsutstvii prakticheskikh metodov

Design and construction of a fast critical facility; Etude et construction d'un ensemble critique a neutrons rapides; Proektirovanie i sooruzhenie kriticheskoj sborki na bystrykh nejtronakh; Proyecto u construccion de un conjunto critico de neutrones rapidos

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Kato, W Y; Dates, L R [Argonne National Laboratory, Argonne, IL (United States)

1962-03-15

'noj laboratorii, gde sooruzhaetsya kriticheskaya sborka na bystrykh nejtronakh - ZPR-VI na ee stantsii po izucheniyu fiziki reaktorov na bystrykh nejtronakh v Lemonte, shtat Illinojs. ZPR-VI yavlyaetsya ustrojstvom s dvumya dvizhushchimisya polovinami aktivnoj zony, kotoroe analogichno reaktoru ZPR-III. On imeet ob'em priblizitel'no v dva s polovinoj raza prevyshayushchij ob'em bolee rannego reaktora, i budet ispol'zovat'sya dlya issledovanij fiziki krupnykh sistem na sil'no razbavlennom toplive, metallicheskom i metallokeramichesko m toplive, bez zamedleniya ili s chastichnym zamedleniem, imeyushchim ob'emy aktivnoj zony priblizitel'no do 1500 litrov. V doklade budet dano podrobnoe opisanie ZPR-VI i budut obsuzhdeny kriterii, kotorye ispol'zovalis' pri proektirovanii ego razlichnykh komponentov s tochki zreniya reaktornoj fiziki. Krome togo, v doklad budut vklyucheny takie voprosy, kak upravlenie i ehkspluatatsiya, potentsial'naya opasnost' vo vremya ehkspluatatsii, ehksperimental'ny e metody i stoimost' stroitel'stva. (author)

Removal of radiostrontium from man; Elimination du radiostrontium de l'organisme humain; Vyvedenie radioaktivnogo strontsiya iz organizma cheloveka; Eliminacion del radioestroncio por el organismo humano

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Spencer, H. [Edward Hines, Jr. Hospital Hines, IL (United States)

1963-02-15

normal que se ofrecieron como voluntarios. En este estudio no se administraron radioisotopos. Los resultados relativos al {sup 90}Sr son analogos a los conseguidos con el 8{sup 5}Sr. (author) [Russian] Issledovanie obmena radiostrontsiya u cheloveka proizvodilos' pri postoyannom kontrole.obmena i diety. V kachestve radioaktivnogo indikatora byl ispol'zovan otnositel'no korotkokhivushchij izotop Sreb. Odnokratnye indikatornye dozy Sr{sup 85} vvodilis' vnutrivenno i davalis' vnutr', posle chego opredelyalsya uroven' ego v plazme i vydelenie s mochoj i kalom. Osnovnoe kolichestvo Sr{sup 85} vyvoditsya pochkami, nezavisimo ot puti vvedeniya indikatora. U bol'shinstva obsledovannykh v srednem 20% prinyatogo vnutr' kolichestva Sr{sup 85} poglashchalos' iz kishechnika i priblizitel'no 50% pogloshchennoj dozy vydelyalos' s mochoj za 12 dnej. Issledovaniya, v protsesse kotorykh indikatornye dozy Sr{sup 85} i Ca{sup 45} byli odnovremenno vvedeny per oa, ukazali na predpochtenie organizma k pogloshcheniyu Ca{sup 45} i k vydeleniyu Sr{sup 85}, prichem sootnoshenie po- gloshcheniya Ca{sup 45}/Sr{sup 85} sostavlyaet 2,6:1. Zakonchivshiesya issledovaniya Sr{sup 85} vo vremya priema bol'shikh i malykh doz kal'tsiya odnimi i temi khe litsami pokazali, chto priem bol'shogo kolichestva kal'tsiya ne vedet k kakomulibo zametnomu izmeneniyu v pogloshchenii Sr{sup 85} u bol'shinstva obsledovannykh. Poskol'ku vydelenie Sr{sup 85} mochoj idet parallel'no vydeleniyu kal'tsiya, okazalos' vozmozhnym uvelichit' soderzhanie kal'tsiya v moche s pomoshch'yu razlichnykh veshchestv, povyshayushchikh kal'tsiuriyu. Vvedennye vnutrivenno stabil'nye kal'tsij i strontsij i prinyatyj per os khloristyj ammonij, primenennye v chistom vide ili v sochetanii s vnutrivenno vvedennymi kal'tsiem i nekotorymi kompleksoobrazuyushchimi veshchestvami, okazalis' ehffektivnymi v otnoshenii udaleniya radiostrontsiya u cheloveka v period ot dvukh do chetyrekh nedel' posle inektsii indikatora. Proizvedeny takzhe issledovaniya

Stabilization by Shear and Negative V''; Stabilisation au Moyen du Croisement de Lignes de Champ et de l'Emploi d'un V'' Negatif; Stabilizatsiya spomoshch'yu shira i otritsatel'nogo V{sup ;} Estabilizacion por Cizallamiento y Empleo de V'' Negativa

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Furth, H. P.; Killeen, J. [Lawrence Radiation Laboratory, Livermore, CA (United States); Rosenbluth, M. N. [General Atomic Division, General Dynamics Corporation and University of California (San Diego), La Jolla, CA (United States); Coppi, B. [University of California (San Diego), La Jolla, CA (United States)

1966-04-15

vypolnjaetsja, to kak dissipativnyj inkrement, tak i kriticheskoe {beta} dlja ''balonnyh'' mod zavisjat ot velichiny Tilde-Operator rRc {gamma}/L{sup 2} , gde g - radius plazmy, L - dlina vdol' linij polja mezhdu ''horoshimi'' i ''plohimi'' oblastjami, R{sub c} srednij radius krivizny i, nakonec, {gamma} formfaktor, zavisjashhij ot detal'noj konstrukcii. Podobnye soobrazhenija rasprostranjajutsja i na vintovye mody. Ispol'zuja rezul'taty chislennyh raschetov, my obsudim strukturu, ustojchivost' i preimushhestva neskol'kih reshenij so ''stacionarnoj tochkoj'', imejushhih otricatel'noe V''. Princip sostoit v tom, chtoby sozdat' napravlenija blagoprijatnogo VB, a zatem sozdat' vrashhatel'noe preobrazovanie, oslabljaemoe v blagoprijatnyh oblastjah (dostigaja 0 v stacionarnoj tochke). Otricatel'nye vklady v velichinu V'' priobretajut bol'shoj ves, stanovjas' beskonechnymi v stacionarnoj tochke. Rassmatrivajutsja tri tipa reshenija: 1) Linejnye periodicheski-mul'tipol'nye rjady S ispol'zovanija vintovyh 1 = 2 i 4, ili 1=3 ''formirujushhih polej'' s estestvennymi stacionarnymi tochkami; i putem nalozhenija 1 = 0 i 2, 1 = 1 i 3, ili 1 = 0 i 3 ''gofrirujushhih polej'', dlja togo, chtoby sozdat' blagoprijatnye oblasti {Delta}B. 2) Vintovoe ravnovesie putem ispol'zovanija bol'shoj vintovoj krivizny s cel'ju sozdanija blagoprijatnyh oblastej {Delta}B i ostanovki vrashhatel'nogo preobrazovanija s pomoshh'ju toka na osevom provodnike, vokrug kotorogo navita vintovaja trubka dlja ravnovesnogo potoka. 3) Toroidal'noe ravnovesie s ispol'zovaniem bol'shoj toroidal'noj krivizny dlja sozdanija blagoprijatnyh oblastej {Delta}B. Vrashhatel'noe preobrazovanie sozdaetsja s pomoshh'ju spiral'nyh vitkov 1 =2 i stacionarnaja tochka obrazuetsja blagodarja vspomogatel'nomu poloidal'nomu-polju. (author)

Interaction Between Hf Waves and Plasma in Delta-2; Interaction dans 'Delta-2' d'une Onde Progressive Electromagnetique de Haute Frequence et d'un Plasma; Vzaimodejstvie vysokochastotnoj ehlektromagnitnoj begushchej volny s plazmoj na ustanovke ''Del'ta-2'; Interaccion de una Onda Progresiva Electromagnetica de Alta Frecuencia con el Plasma en la Instalacion 'Delta-2'

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Breus, S. N.; Kurdjumov, V. N.; Levin, M. L.; Osovec, S. M.; Popova, N. Ja.; Popov, I. A.; Hodataev, K. V.; Shimchuk, V. P. [Radiotehnicheskij Institut AN SSSR, Moskva, SSSR (Russian Federation)

1966-04-15

las corrientes transversales en el plasma. Este campo tiene una estructura compleja y, posiblemente, esta determinado, como indica una teorfa aproximada, por el efecto toroidal. La existencia de los campos magneticos cuasi-estacionarios guarda al parecer una relacion con las oscilaciones del plasma que se han observado, de 200 a 500 kHz, correspondientes, aproximadamente, a las oscilaciones de Alfven en dichos campos. La presencia de campos y de corrientes cuasi-estacionarios hace que sea mas diffcil separar el plasma de las paredes de la camara de descarga y lograr la constriccion ulterior. Sin embargo, las corrientes constantes axiales, por si mismas, no pueden dar lugar a la aparicion de inestabilidades del tipo cinetico, ya que las velocidades electronicas que les corresponden son menores que la velocidad de fase de la onda progresiva, la cual es, aproximadamente, igual a 5 * 10{sup 7} cm/s, es decir, apreciablemente menor que la velocidad termica de los electrones. (author) [Russian] Izlagajutsja rezul'taty issledovanija vzaimodejstvija plotnoj plazmy s vysokochastotnym polem magnitnoj volny, begushhej vdol' toroidal'noj razrjadnoj kamery (bol'shoj diametr - 700 mm, malyj - 85 mm). Begushhaja volna vozbuzhdaetsja na chastote f = 2,4 Mgc trehfaznym avtogeneratorom moshhnost'ju okolo 50 Mvt s dlitel'nost'ju impul'sa okolo 250 i 350 mksek. Pri jeksperimentah diapazon nachal'nyh davlenij sostavljal 0,1 - 0,001 tor, a amplituda vysokochastotnogo magnitnogo polja na poverhnosti plazmy dostigala 500-600 je. V jetih uslovijah osnovnye javlenija, opredeljajushhie vzaimodejstvie plazmy s polem begushhej volny, svjazany s nalichiem nelinejnyh jeffektov i, prezhde vsego, s pojavleniem postojannoj sostavljajushhej prodol'nogo toka, kotoraja dostigala znachenij neskol'kih tysjach amper. V centre kamery v oblasti malyh polej provodimost' plazmy byla porjadka (3 - 4)*10{sup 14} CGSE, chto pri stepeni ionizacii, blizkoj k 100%, sootvetstvuet jelektronnoj temperature 8 - 12 jev. V

Gas-flow detector for uranium contamination on finned-can surface of a reactor fuel; Detecteur a courant gazeux pour deceler la contamination en uranium des nervures des gaines de combustible nucleaire; Gazopotochnyj detektor zagryazneniya uranom rebristoj poverkhnosti obolochki reaktornykh teplovydelyayushchikh ehlementov; Detector de flujo gaseoso para medir la contaminacion de uranio en la superficie de la vaina de aletas de los elementos combustibles para reactores

Energy Technology Data Exchange (ETDEWEB)

Miwa, H; Shiojiri, T; Maeda, Y [Kobe Kogyo Corporation, Okubo, Akashi, Hyogo (Japan)

1962-04-15

stavitsya pod otritsatel'noe napryazhenie. Prostranstvo mezhdu toplivnym ehlementom i setkoj sluzhit ulovitel'noj ionizatsionnoj kameroj. Setka sostoit iz parallel'nykh vol'framovykh provodov, zazemlennykh i raspolozhennykh tsilindricheski vokrug toplivnogo ehlementa. Kollektory sostoyat iz 16-ti tonkikh vol'framovykh provolochek, skonstruirovannykh analogichno setke, no kazhdaya provoloka izolirovana ehlektricheski ot drugikh. Vse kollektory soedineny mezhdu soboyu cherez soprotivleniya v 50 kiloomov i cherez pitayushchee soprotivlenie vklyucheny v set' s polozhitel'nym tokom vysokogo napryazheniya. Prostranstvo mezhdu setkoj, kollektorami i katodom sluzhit v kachestve gazovoj umnozhitel'noj kamery, podobno obychnomu proportsional'nomu schetchiku. Kazhdoe soprotivlenie v 50 kiloomov otdelyaet parazitnuyu emkost' podklyuchennogo kollektora ot drugikh emkostej. Vykhodyashchij iz detektora signal napravlyaetsya v usilitel' toka s malym vkhodnym kompleksnym soprotivleniem. Maloe vkhodnoe kompleksnoe soprotivlenie snizhaet takzhe vrednoe vliyanie parazitnoj emkosti vkhodyashchej skhemy. Ehto vedet k polucheniyu khoroshego sootnosheniya signal-pomekha i povyshaet chuvstvitel'nost' obnaruzheniya al'fa-chastits. Do proizvodstva izmerenij v schetchike predvaritel'no sozdaetsya vakuum otkachivaniem pri pomoshchi rotatsionnogo nasosa, posle chego v nego nagnetaetsya gaz PR (90% argona i 10% metana). Blagodarya ispol'zovaniyu ehtogo novogo oborudovaniya nam udalos' obnaruzhit' al'fa-chastitsy, ispuskavshiesya 1 x 10{sup -5} g prirodnogo urana, zagryaznyavshego rebristuyu poverkhnost' obolochki reaktornykh teplovydelyayushchikh ehlementov tipa Kvl'der-Kholl; vse teplovydelyayushchie ehlementy reaktora JRR-3 budut provereny ehtim schetchikom. (author)

Selected Lectures of the 13th International Workshop on Neonatology; Cagliari (Italy; October 25th-28th, 2017

Directory of Open Access Journals (Sweden)

--- Various Authors

2017-10-01

Full Text Available Selected Lectures of the 13th International Workshop on Neonatology • The power of Epigenetics • Twins: identical but different • Cagliari (Italy • October 25th-28th, 2017LECT 1. ASPHYXIA IN THE THIRD MILLENNIUM: FROM VIRGINIA APGAR TO METABOLOMICS • O.D. SaugstadLECT 2. INTRAPARTUM FETAL MONITORING: WHERE ARE WE NOW? • D. Ayres-de-CamposLECT 3. THERAPEUTIC HYPOTHERMIA: REVISED IN­DI­CA­TIONS • E. SalibaLECT 4. ANTIBIOTICS PRESCRIPTION IN NEONATAL INTENSIVE CARE UNIT • G. DimitriouLECT 5. CHORIOAMNIONITIS: FROM CLASSIC DATA TO METABOLOMICS • L. Pugni, C. Fattuoni, C. Pietrasanta, A. Ronchi, A. Noto, L. Barberini, F. Mosca, V. FanosLECT 6. FUNGAL INFECTIONS • A. Giannattasio, L. Capasso, T. Ferrara, S. Salomè, A. Umbaldo, R. Albachiara, F. RaimondiLECT 7. METABOLOMICS IN SEPSIS: THE POWER OF PREDICTION • V. Fanos, R. Pintus, A. Noto, A. DessìLECT 8. PROBIOTICS IN OBSTETRICS and GYNAE­COLOGY • G. Ettore, E. Palma, N. Recine, L. Ferrara, C. EttoreLECT 9. LATE PRETERM INFANTS WITH RESPIRATORY DISTRESS SYNDROME: LIGHTS AND SHADOWS • C. DaniLECT 10. PRECISION VENTILATION IN NEWBORN • P.E. Tagliabue, M.L. Ventura, E. Zannin, R. DellacàLECT 11. PRECISION NON-INVASIVE VENTILATION IN NEWBORNS • C. Moretti, F. Midulla, C.S. Barbara, R. Nenna, L. Di Lucchio, C. GizziLECT 12. BRONCHOPULMONARY DYSPLASIA: FROM NORTHWAY TO METABOLOMICS • D. Manus, V. Masile, M.C. Pintus, A. Dessì, V. FanosLECT 13. RESPIRATORY SYNCYTIAL VIRUS INFECTION: WHAT’S NEW? • M. Lanari, C. BiagiLECT 14. EMERGENCY IN OBSTETRICS, WORLDWIDE • R. Baiocchi, K. Picucci, E. BruniLECT 15. NEONATOLOGY IN AFGHANISTAN • M. TestaLECT 16. NEW PERSPECTIVES IN HUMAN MILK FOR­TIFIERS • E. Bertino, G.E. Moro, P. Tonetto, C. Peila, L. Occhi, E. Spada, G. Ansaldi, S. Deantoni, L. Cavallarin, M. Giribaldi, A. Coscia, A. Dessì, V. FanosLECT 17. GUT PERTURBATION AND PROBIOTICS IN NEONATOLOGY • G. BiasucciLECT 18. NEAR INFRARED SPECTROSCOPY AND GUT FUNCTION

Influence of the Plow Filling and Thread Angle onto the Plow Head Efficiency / Wpływ Współczynnika Wypełnienia Organu Oraz Kąta Nawinięcia Płata Ślimaka Na Sprawność Ładowania Frezującymi Organami Ślimakowymi

Science.gov (United States)

Wydro, Tomasz

2015-03-01

sprawność ładowania ηl. Uzyskane wyniki i ich analiza pozwoliły stwierdzić, że badane organy wykazywały bardzo zróżnicowane sprawności ładowania, w zależności od zmiennych parametrów ruchowych, czyli prędkości posuwu vp i obrotów n, a także przy różnym kącie nawinięcia płata ślimaka. Również istotnym wnioskiem z badań, który może w praktyce zostać wykorzystany, jest fakt, że dla stałych obrotów organu n i zwiększanej prędkości posuwu vp spadała sprawność ładowania ηł (dla pracy organu bez ładowarki). Fakt ten jest ważny, ponieważ w warunkach dołowych w trakcie eksploatacji kombajnu ścianowego istnieje tylko możliwość regulacji jego prędkości posuwu. Istotnym dla wykorzystania w praktyce, może być również fakt, iż przy pracy organu z ładowarką występuje wzrost poboru mocy organu przy wzroście współczynnika wypełnienia kw. Jest to istotne z punktu widzenia ekonomi eksploatacji i dążenia do minimalnego zużycia energii. Zrealizowane badania laboratoryjne sprawności procesu ładowania, pozwoliły uzyskać szeroki zakres wyników, które mogą pomóc przy doborze parametrów ruchowych kombajnu ścianowego w trakcie jego eksploatacji, a nawet wcześniej, na etapie projektowania organów ślimakowych (Wydro, 2011).

Radiosensitivity of Various Stages of Callosobruchus Chinensis L; Radiosensibilite du Callosobruchus Chinensis L. aux divers stades de son developpement; Chuvstvitel'nost' k oblucheniyu u razlichnykh stadij Callosobruchus Chinensis L.; Radiosensibilidad de las diversas fases de la metamorfosis del Callosobruchus Chinensis L.

Energy Technology Data Exchange (ETDEWEB)

Sayeed Quraishi, M.; Metin, M. [Cento Institute of Nuclear Science, Teheran (Iran, Islamic Republic of)

1963-09-15

padres a dosis de 67 000 rad, que fue la mas intensa que emplearon los autores. (author) [Russian] Bylo izucheno vozdejstvie oblucheniya na yajtsa, lichinki, kukolki i vzroslye osobi Callosobruchus chinensis L . - vrednogo nasekomogo, porazhayushchego zapasy bobovykh kul'tur. Tak kak ves' zhiznennyj tsikl ehtogo nasekomogo, za isklyucheniem vremeni prebyvaniya v sostoyanii yajtsa i vzrosloj osobi, protekaet vnutri samogo boba, nablyudat' za ehtimi nasekomymi obychnymi sredstvami chrezvychajno trudno. Nasekomye byli vzyaty iz mestnykh zernovykh skladov i vyrashchivalis' v Laboratornom inkubatore na semenakh mungo (Phaseolus mungo L.) pri temperature v 29{sup o}C {+-} 1{sup o}C i pri vlazhnosti v 70 - 75%. V ehtikh usloviyakh nasekomye zavershali svoj zhiznenyj tsikl za 18 - 22 sutok. Dlya pervonachal'nykh ehksperimentov s oblucheniem byl ispol'zovan istochnik s iridiem-192 moshchnost'yu 1 kyuri. V dal'nejshem moshchnost' byla uvelichena do 4 kyuri. Obluchenie proizvodilos' na ochen' blizkom rasstoyanii, i dozy podschityvalis' na osnovanii izmerenij, sdelannykh na rasstoyanii 50 cm pri pomoshchi kondensatornogo dozimetra tipa Viktorien. Yajtsa obluchalis' na rasstoyanii 0,5 cm ot istochnika, a lichinki, kukolki i vzroslye osobi - na rasstoyanii 1,0 cm ot istochnika, prichem sootvetstvuyushchie dozy byli 80 000 rad/chas na rasstoyanii 0,5 cm i 20 000 rad/chas na rasstoyanii 1 cm dlya istochnika moshchnost'yu 4 kyuri. Bylo obnaruzheno, chto dlya yaits doza 15 000 rad davala 100-protsentnuyu smertnost'. Raznye dozy nizhe ehtogo urovnya davali dovol'no razlichnye rezul'taty, i predstavlyaetsya vozmozhnym, chto vo vremya pervykh 24 chasov razvitiya yaits imeetsya neprodolzhitel'naya chuvstvitel'naya stadiya. Dlya lichinok v vozraste 6 sutok 100-protsentnaya smertnost' nastupala pri doze 20 000 rad. Po-vidimomu, kukolki menee chuvstvitel'ny k oblucheniyu, chem yajtsa ili lichinki, i dlya dostizheniya 100-protsentnoj smertnosti byli neobkhodimy dozy v 47 000 rad. Dozy v 42 000

Magnesium Cermets and Magnesium-Beryllium Alloys; Cermets au magnesium et au magnesium-beryllium; Metallokeramicheskie magnievye i magnievo-berillievye splavy; Cermets de magnesio y aleaciones de magnesio y berillio

Energy Technology Data Exchange (ETDEWEB)

Ivanov, V. E.; Zelenskij, V. F.; Fajfer, S. I.; Zhdanov, S. M.; Maksimenko, V. I.; Savchenko, V. I. [Fiziko-Tekhnicheskij Institut an USSR, Khar' kov, SSSR (Russian Federation)

1963-11-15

'nost' prochnostnykh svojstv, chto svyazano prezhde vsego s termodinamicheskoj ustojchivost'yu uprochnyayushchej okisnoj fazy v matritse metalla. Ispol'zovanie metodov poroshkovoj metallurgii pozvolilo poluchit' osobo zharostojkie magnievo- berillievye splavy, soderzhashchie povyshennye kontsentratsii berilliya (splavy PMB). Po prochnostnym kharakteristikam splavy PMB blizki k metallokeramicheskim splavam Mg - MgO, odnako magnievo-berillievye splavy otlichayutsya ustojchivym i dlitel'nym soprotivleniem vysokotemperaturnomu okisleniyu, prevyshayushchem analogichnye svojstva izvestnykh v nastoyashchee vremya magnievykh splavov. Tak v vozdukhe pri 580{sup o}C splavy PMB s 2 + 5% berilliya sokhranyayut vysokoe soprotivlenie okisleniyu v techenie bolee 12 + 14 tysyach chasov. Resurs dlitel'noj zharostojkosti splavov opredelyaetsya, prezhde vsego, kolichestvom berilliya v splave i s uvelicheniem soderzhaniya berilliya vozrastaet. Splavy PMB otlichayutsya takzhe vysokoj ustojchivost'yu k kratkovremennym peregrevam. Metallokeramicheskie magnievye i magnievo-berillievye splavy, kharakternoj osobennost'yu kotorykh yavlyaetsya povyshennaya zharoprochnost' i zharostojkost', mogut najti shirokoe primenenie v razlichnykh oblastyakh tekhniki. (author)

Analyser for fast single events; Analyseur d'evenements rapides simples; Analizator bystrykh odnokratnykh yavlenij; Analizador de sucesos rapidos no recurrentes

Energy Technology Data Exchange (ETDEWEB)

Sedlmeyer, J W; Patten, R B; Fussell, L Jr [Edgerton, Germeshausen And Grier, Inc., Las Vegas, NV (United States)

1962-04-15

registro de baja frecuencia; se puede darles forma digital para facilitar un rapido tratamiento de los datos con el empleo de los dispositivos corrientes; y pueden tambien presentarse visualmente. Comparado con los oscilografos rapidos, el analizador es mas ventajoso cuando se trata de analizar individualmente grandes cantidades de fenomenos transitorios distintos y no recurrentes; tal es el caso del estudio de las fluctuaciones en la respuesta de sistemas o el ensayo de componentes producidos en serie. Tambien es preferible el analizador cuando el analisis de los datos debe efectuarse en seguida de ocurrir el fenomeno ''senal'', puesto que no es preciso revelar peliculas ni interpretarlas. Asimismo presenta ventajas cuando el centro de computo del analisis esta situado lejos del lugar del suceso. Tiene multiples aplicaciones en el campo de la energia nuclear. Facilita el rapido estudio de las fluctuaciones en los reactores y conjuntos subcriticos mediante la tecnica de las fuentes pulsantes de neutrones. Permite determinar las caracteristicas de formacion y descenso del impulso en los detectores y hacer analisis de estadisticas y fluctuaciones. Es posible registrar con el la forma del impulso de la onda de radiacion de los aceleradores nucleares. Facilita la espectrometria neutronica por el metodo del tiempo de vuelo. Permite efectuar con rapidez y exactitud estudios isomericos en que intervienen periodos de semidesintegracion entre limites de 10 y 1000 ns, juntamente con investigaciones sobre dispersion. La Comision de Energia Atomica de los Estados Unidos presto su apoyo a este estudio. (author) [Russian] Byl skonstruirovan i postroen ehlektronnyj analizator dlya ispol'zovaniya s odnokratnykh nepovtoryayushchikhsya perekhodyashchikh signalakh. Vo vremya prokhoda signala vdol' koaksial'noj linii mgnovenno v tselom ryade tochek proiskhodit otbor, chto delaetsya pri pomoshchi odnokratnogo korotkogo vremennogo selektornogo impul'sa. Razbivka vremeni na mnogochislennye

Theoretical Studies of Electron Injection and E-Layer Build-Up in Astron; Etudes Theoriques sur l'Injection d'Electrons et la Formation de la Couche E dans l'Astron; Teoreticheskie izucheniya ehlektronnoj inzhektsii i narashchivaniya sloya-E v ustanovke ''Astron''; Estudios Teoricos de Electrones y Formacion de la Capa E en la Instalacion Astron

Energy Technology Data Exchange (ETDEWEB)

Killeen, J.; Neil, V. K.; Heckrotte, W. [Lawrence Radiation Laboratory, Livermore, CA (United States)

1966-04-15

bolee 160 000 tochek, naprimer 81 v prostranstve g, 12 v g, 19 v P z i 9 v Rg. Na kazhdoj stupeni integracija fe po prostranstvu momenta daet plotnost' toka j{sub {theta}} (r, z, t)j sobstvennoe pole zatem vychisljaetsja putem reshenija uravnenija dlja {psi} (r, z, t). V nastojashhem doklade privoditsja celaja serija opytov, otnosjashhihsja v razlichnym vakuumnym poljam i k razlichnym uslovijam inzhekcii. Poluchennye jelektronnye raspredelenija sil'no otlichajutsja drug ot druga v zavisimosti ot primenjaemogo probochnogo polja. Vo vseh sluchajah imelo mesto obrazovanie oblastej minimal'nogo-V i v nekotoryh iz nih bylo dostignuto reversirovanie polja. (author)

Injection of Plasma Blobs into A Mirror Trap With Adiabatic Plasma Compression: ''ASPA'' Device; Injection d'Amas de Plasma dans un Piege a Miroirs avec Compression Adiaba Tique - Machine 'ASPA'; Inzhektsiya plazmennykh sgustkov v probochnuyu lovushku s adiabaticheskim szhatiem plazmy. Ustanovka ''ASPA''; Inyeccion de Plasmoides en una Trampa de Espejos con Compresion Adiabatica. La Instalacion 'ASPA'

Energy Technology Data Exchange (ETDEWEB)

Babichev, A. P.; Burjak, E. M.; Gorbunova, E. F.; Karchevskij, A. I.; Muromkin, Ju. A. [Institut Atomnoj Ehnergii, Im. I.V. Kurchatova, Moskva, SSSR (Russian Federation)

1966-04-15

kotorymi 20 sm (probochnoe otnoshenie 1:2). Maksimal'naja naprjazhennost' impul'snogo magnitnogo polja v probkah sostavljaet 40 kje, vremja narastanija magnitnogo polja Tilde-Operator 40 mksek, a vremja spada polja 350 mksek. Provodilis' mass-spektrometricheskie issledovanija sostava i jenergeticheskih raspredelenij ionnoj komponenty plazmy v titanovom i koaksial'nom inzhektorah. S pomoshh'ju mikrovolnovogo interferometra izmerjalas' plotnost' plazmennogo sgustka pri ego dvizhenii ot inzhektora k rabochej oblasti szhatija. Issledovalos', takzhe, prohozhdenie plazmennogo sgustka cherez magnitnuju probku s naprjazhennost'ju polja do 20 kje. V odnih opytah pole probki bylo parallel'no vedushhemu magnitnomu polju, a v drugih - antiparallel'no, t.e. sozdavalos'' pole divertornogo tipa s dvumja oblastjami nulevoj naprjazhennosti polja. Pokazano, chto inzhektiruemyj plazmennyj sgustok (kak dlja titanovogo, tak i dlja koaksial'nogo inzhektorov) otnositel'no svobodno pronikaet cherez magnitnuju probku, kogda pole probki sovpadaet po napravleniju s vedushhim magnitnym polem; i prakticheski ne prohodit v sluchae polja divertornogo tipa. Na osnovanii jetih opytov pokazana vozmozhnost' otsechki tjazhelyh primesej inzhektiruemoj plazmy s pomoshh'ju impul'snogo magnitnogo zatvora, sozdajushhego oblasti s nulevoj naprjazhennost'ju magnitnogo polja i vyhodom magnitnyh silovyh linij na stenki kamery. V predvaritel'nyh jeksperimentah po adiabaticheskomu szhatiju plazmy v lovushke probochnoj konfiguracii zaregistrirovano zhestkoe rentgenovskoe izluchenie (jenergija 30 kjev) i issledovano vlijanie nachal'nogo magnitnogo polja i parametrov plazmennogo sgustka na intensivnost' i zhestkost' jetogo izluchenija. (author)

Coincidence scanning with positron-emitting arsenic or copper in the diagnosis of focal intracranial disease; Exploration par coincidences avec l'Arsenic ou le Cuivre Emetteurs de Positrons dans le Diagnostic des Maladies intracraniennes localisees; Raspoznavanie ochagovykh vnutricherepnykh zabolevanij putem podscheta (skanirovaniya) sovpralenij s primeneniem mysh'yaka ili medi, vydelyayushchikh pozitrony; Exploracion por coincidencia con arsenico o cobre emisores de positrones en el diagnostico de enfermedades intracraneanas localizadas

Energy Technology Data Exchange (ETDEWEB)

Sweet, William H; Mealey, John Jr; Brownell, Gordon L; Aronow, Saul [Departments of Surgery and Medicine, Harvard Medical School, and Neurosurgical Service and Physics Research Laboratory of Massachusetts General Hospital, Boston, MA (United States)

1959-07-01

pozitrotsefalogramm u (PTSG) i kartinu assimmetrii obshchego gamma-izlucheni ya ili assimmetrogammagramm u (AGG). Krome togo, ustanavlivaets ya pozitrotsefalogramm a vdol' strelovidnogo (sagittal'nogo) shva. Provedenie bokovogo issledovaniya trebuet 40 minut, a sagittal'nogo - 20 minut. Iz chisla imeyushchikhsya issledovanij, kotoroe prevyshaet 3000, nami prinyaty zdes' vo vnimanie lish' 285, provedennye v poslednie 3 1/2 goda na osoboj gruppe bol'nykh, sostoyashchej iz 334 chelovek, u kotorykh pochti vo vsekh sluchayakh byli obnaruzheny ochagovye obychno zanimayushchie izvestnoe prostranstvo porazheniya, i postavlen polnyj anatomicheskij i gistologicheski j diagnoz posle khirurgicheskogo vmeshatel'stva ili posmertnogo vskrytiya. V ehtoj gruppe udalos' postavit' pravil'nyj diagnoz v 80% pri issledovanii 249 opukholej mysh'yakom i b 70% - pri issledovanii 84 opukholej med'yu. V ranee provedennom issledovanii 207 bol'nykh odnorodnoj gruppy nam udalos' lokalizirovat' lish' 69% imeyushchikhsya opukholej. V tekushchej serii tol'ko 3 iz 83 glioblastom i 3 iz 34 megshngom ne byli obnaruzheny metodom mysh'yaka. Pri pomoshchi mysh'yaka okazalos' vozmozhnym lokalizirovat ' po men'shej mere u 85 iz 100 bol'pykh s odnim ili bol'shim chislom zlokachestvenny kh metastazov. Primenenie medi ne dalo takikh polozhitel'nykh rezul'tatov ni v odnoj iz ehtikh trekh osnovnykh kategorij. Po issledovanii mysh'yakom 182 opukholej odnogo ili oboikh polusharij mozga pravil'nyj diagnoz byl postavlen v 165 sluchayakh, to est' 91 %; primenenie medi opravdalos' v 81 % sluchaev, prichem issledovano bylo 64 patsienta takogo tipa. Tak kak pri angiografii i pnevmografii nezamechennymi ostayutsya imenno nebol'shie opukholi mozga, v to vremya, kogda oni eshche poddayutsya udaleniyu khirurgicheskim putem, to vozmozhnost' ikh raspoznavaniya yavlyaetsya v nastoyashchee vremya naibolee znachitel'nym preimushchestvom rassmatrivaemogo metoda. V protivoves ehtomu my dobilis' lish' ves'ma neznachitel'ny kh rezul'tatov pri

The Technology and Applications of Large Fission Product Beta Sources; Technologie et applications des grandes sources beta de fission; Tekhnologiya i primenenie krupnykh istochnikov beta-izluchenij, ispuskaemykh produktami deleniya; Tecnologia y utilizacion de los productos de fision como fuentes de irradiacion beta de elevada intensidad

Energy Technology Data Exchange (ETDEWEB)

Silverman, Joseph [Radiation Applications Incorporated (United States)

1960-07-15

poverkhnostnykh sloev plastmassy i tekstilya. 2. Massivnye, prochnye, inertnye, bezopasnye i nedorogie istochniki beta-izluchenij mogut stroit'sya putem nadlezhashchego rasshireniya sushchestvuyushchikh tekhnicheskikh ustanovok. Osobenno mnogoobeshchayushchimi predstavlyayutsya zaklyuchayushchie v sebe istochniki steklyannye ampuly. 3. Podschety pogloshcheniya beta-izluchenij pokazyvayut, chto predstavlyaetsya vozmozhnym skonstruirovat netochechnye istochniki s dostatochno vysokim kpd ispol'zovani ya moshchnosti, dokhodyashchim do 20%. Byli vyvedeny uravneniya i sostavleny krivye dayushchie dozirovku i kpd ispol'zovani ya beta-izluchenij v zavisimosti ot konfiguratsii izluchatelya, sostava veshchestv i materialov, vkhodyashchikh v konstruktsiyu istochnika i misheni. Dlya proverki pravil'nosti ehtikh podschetov v nastoyashchee vremya provoditsya ehksperimental'na ya programma. 4. Izuchenie proizvodstvennoj sebestoimosti ukazyvat, chto beta-izlucheniya, ispuskaemye produktami deleniya, mogut konkurirovat' s drugimi istochnikami izluchenij. (author)

Radiotracer Approaches to Carbamate Insecticide Toxicology; Emploi des radio indicateurs pour l'etude de la toxicologie des insecticides a base de carbamates; Primenenie radioaktivnykh indikatorov dlya izucheniya toksikologii karbamatnykh insektitsidov; Estudio con radioindicadores de la toxico logia de los insecticidas a base de carbamatos

Energy Technology Data Exchange (ETDEWEB)

Casida, J. E. [University of Wisconsin, Madison, WI (United States)

1963-09-15

5-[3-metil-2-dimetilcarbamil]- pirazolina) y un compuesto comparable indican tambien que el ataque oxidante forma derivados N-metilo y N-metilol. Faltan todavia muchos datos sobre la relacion entre esas reacciones de desintaxicacion y el mecanismo de resistencia, la accion de las sustancias sinergicas, la toxicidad selectiva de este grupo de insecticidas, y la naturaleza y el significado de los residuos. Es probable tambien que el metabolismo del Sevin inyectado en las plantas sea oxidativo mas que hidrolitico, pero no se ha establecido todavia la naturaleza de los productos y el mecanismo enzimatico. (author) [Russian] Metilkarbamaty yavlyayutsya odnoj iz glavnykh grupp insektitsidov. Mnogie nerazreshennye problemy toksikologii ehtikh veshchestv mogut byt' legko izucheny pri pomoshchi radioaktivnykh indikatorov. Byli izgotovleny N, N-dimetidkarbamaty, karbonilovaya gruppa kotorykh metilas' C{sup 14}, a takzhe N-metilkar- bamaty, metilovaya, karbonilovaya gruppa i kbl'tsa kotorykh byli mecheny C{sup 14}. Farmakologicheskoe dejstvie ehtikh slozhnykh soedinenij, veroyatno, svyazano s tormozheniem atsetilkholinesteraehy i mozhet vklyuchat' karbamilatsiyu. Mechenie karbonilovoj ili metilovoj gruppy karbamatov daet vozmozhnost' v ikh reaktsiyakh s ochishchennoj kholinesterazoj ili s drugimi ehsterazami kriticheski izuchit' reaktsiyu karbamida tsii, a takzhe legkost' samoproizvol'noj ili vyzvannoj reaktivatsii ili dekarbamilatsii. Fiziologicheskoe znachenie tormozheniya kholinesterazy mozhet byt' izucheno pri pomoshchi vvedeniya mechennogo C{sup 14} atsetata i analiza mechenogo atsetilkholina, nakopivshegosya v nervnykh tkanyakh, ili zhe putem ispol'zovaniya atsetil-C{sup 14}-kholina v kachestve substrata dlya opredeleniya In vitro stepeni tormozheniya kholiya- esterazy v tkanyakh otravlennykh zhivotnykh pri minimal'nom rastvorenii vo vremya analiza ingibitorov i fermentov.Nekotorye'uspekhi byli dostignuty pri pomoshchi mechennykh radioizotopami veshchestv v issledovanii

Anomalous Plasma Diffusion in Magnetic Wells; Diffusion Anormale de Plasma dans des Puits Magnetique; Anomal'naya diffuziya plazmy v magnitnykh yamakh; Difusion Anomala de Plasma en Pozos Magneticos

Energy Technology Data Exchange (ETDEWEB)

Fowler, T. K.; Guest, G. E. [Oak Ridge National Laboratory, Oak Ridge, TN (United States)

1966-04-15

schet polozhitel'nogo gradienta ({omega} ' {omega}{sub ci}, k{rho} ' 1 ) . Velichina {beta} predpolagaetsja maloj. Nevozmushhennaja plazma otklonjaetsja ot teplovogo ravnovesija lish' za schet azimutal'nogo toka i radial'nogo profilja davlenija, otvechajushhego uderzhaniju. Esli dB/dr> 0 i {Delta}B = R(dB/dr) > B(T{sub e}/T{sub i}), to kojefficient ''diffuzii'' EhV budet: (1) D{sub Up-Tack} Less-Than-Or-Equal-To (cT{sub /}eB )({rho}{sub i}/R) (T{sub e}/T{sub i} + m{sub e}/m{sub i}) Vulgar-Fraction-One-Half gde {rho}{sub i} - ionnyj giroradius, a R- radius plazmennogo shnura. Esli dB/dr javljaetsja polozhitel'noj velichinoj lish' v srednem, to imeetsja dopolnitel'noe trebovanie, chtoby L/R <(T{sub i}/T{sub e}){sup Vulgar-Fraction-One-Half} , gde L javljaetsja dlinoj vdol' V, na kotoroj dB/dr javljaetsja otricatel'noj velichinoj. Obsuzhdajutsja primenenija k razlichnym geometrijam termojadernogo magnitnogo uderzhanija. Rezul'taty v nekotoryh sluchajah obodrjajushhie i govorjat v pol'zu nashih predydushhih vyvodov.o tom, chto stohasticheskaja diffuzija takzhe dopustima dlja sinteza. Otkrytymi voprosami javljajutsja predel {beta} i nelinejnoe povedenie nekotoryh skorostno-prostranstvennyh neustojchivostej pri {omega} Greater-Than-Or-Equal-To {omega}{sub ci} - ionnaja girochastota. Pri vyvode uravnenija 1) my berem D{sub Up-Tack} = {lambda}(cE{sub Up-Tack }/B), {lambda} javljaetsja radial'noj {sup d}linoj peremeshivanija{sup .} My nahodim E{+-} po imejushhejsja svobodnoj jenergii, sostojashhej iz dvuh chlenov SW = SW{sub 0} +SW{sub 1}. Pervyj chlen Greek-Small-Letter-Delta W{sub 0} javljaetsja obychnym stabilizirujushhim chlenom v magnitnoj jame ili 'srednej' jame, esli sohranjajutsja magnitnyj momentu i prodol'nyj invariant J. Chlen Inverted-Question-Mark Wi uchityvaet narushenija adiabaticheskoj invariantnosti. My vychisljaem ego na osnove nelinejnoj termodinamiki. Mozhet imet' mesto bol'shoj polozhitel'nyj vklad v chlen Greek-Small-Letter-Delta W{sub 1} za schet

Detailed design of a fixed filter-paper alpha-air-monitor with less than 15-min response time; Detecteur d'aerosols contenant des emetteurs alpha, muni d'un papier filtre fixe, a temps de reponse inferieur a quinze minutes; Podrobnaya konstruktsiya vozdushnogo registratora al'fa-chastits s fiksirovannym bumazhnym fil'trom so vremenem srabatyvaniya menee pyatnadtsati minut; Monitor de hoja de papel filtro fija para emisores alfa suspendidos en el aire, cuyo tiempo de reaccion es inferior a 15 minutos

Energy Technology Data Exchange (ETDEWEB)

Gentry, W O; Seaborn, G B [Oak Ridge Gaseous Diffusion Plant, Oak Ridge, TN (United States)

1962-04-15

pequeno tamano y su sencillez, asi como por el hecho de que su construccion, empleo y conservacion resultan mucho mas economicas que las de cualquiera de los monitores conocidos hasta el presente. Da una senal de alarma en menos de 15 min cuando la concentracion del polvo de uranio supera los 2,1 {center_dot} 10-10 {mu}c/cm{sup 3} (tres veces y media la concentracion maxima admisible para una exposicion de 40 h por semana). Ademas de emitir esa senal de alarma, el monitor permite medir la concentracion semanal media del polvo de uranio, quitando el papel de filtro y midiendo la intensidad ''de la radiacion despues de un periodo conveniente de desintegracion de la actividad natural. (author) [Russian] Osnovnoj dozimetricheskoj problemoj na gazovykh diffuzionnykh zavodakh, gde proiskhodit razdelenie izotopov urana, yavlyaetsya registratsiya uranovoj pyli v vozdukhe, izluchayushchej al'fa-chastitsy. V techenie neskol'kikh let na Okridzhskom gazovom diffuzionnom zavode osushchestvlyaetsya programma razrabotki bolee sovershennykh kontrol'no-izmeritel'nykh priborov dlya obnaruzheniya ehtoj pyli. V dannom doklade obsuzhdaetsya razrabotannyj nedavno pribor, kotoryj obespechivaet podachu bystrogo trevozhnogo signala, esli kontsentratsiya osvobozhdayushchejsya uranovoj pyli v vozdukhe dostigaet opasnykh urovnej. Do razrabotki ehtogo pribora neobkhodima byla primerno pyatichasovaya zaderzhka, kotoraya davala vremya dlya raspada estestvennoj atmosfernoj radioaktivnosti, prezhde chem mozhno bylo obnaruzhit' dolgozhivushchie al'fa-izluchateli uranovoj pyli. Razrabotannyj nedavno pribor rabotaet na sleduyushchem printsipe: kogda sobrana pyl' v vozdukhe, soderzhashchaya dochernie produkty estestvennogo atmosfernogo radona, aktivnost' vozrastet do kvazi-ravnovesnogo znacheniya, pri kotorom skorost' osazhdeniya budet ravna skorosti raspada. V takom sluchae uranovaya pyl' nablyudaetsya po mere bystrogo izmeneniya uslovij ravnovesiya. Unikal'noj kharakteristikoj pribora yavlyaetsya ispol

Establishment of the Processes of Absorption and Diffusion of Systemic Insecticides in Populus Euramericana Dode Guinier ''Robusta''; L'etablissement des processus d'absorption et diffusion des insecticides systemiques au Populus x Euramericana Dode Guinier ''Robista; Opredelenie protsessov pogloshcheniya i diffuzii somaticheskikh insektitsidov u Populus x Euramerican a Dode Guinier ''Robusta''; Determinacion de los procesos de absorcion y difusion de los insecticidas sistemicos en el Populus x Euramericana Dope Guinier ''Robusta''

Energy Technology Data Exchange (ETDEWEB)

Catrina, I.; Popa, A.; Constantinesco, V.; Constantinesco, O.; Constantinesco, El.; Hulula, C. [Institut de Recherches Forestieres de Bucarest, Bucharest (Romania)

1963-09-15

kontsevykh chastyakh rastenij. V obshchem,pri dannom opyte nakoplenie insektitsida sostavilo 1,65 mg/g zelenogo veshchestva po sravneniyu s 0,24 mg/g ehtogo zhe veshchestva u rastenij, vyrashchennykh v laboratornykh usloviyakh. Iz ehtogo sleduet,chto na pochve dvukhletnie topoli Robusta mogut v sukhoe vremya goda nakaplivat' ''Dipterex'', kotoryj byl vveden v vodnom rastvore v otnoshenii 9,3% k kolichestvu, vnesennomu v zemlyu. Pri provedenii opytov v laboratornykh usloviyakh ehto otnoshenie sostavlyalo 1,35%. Nanesenie rastvorov na listvu putem razbryzgivaniya daet slabyj koehffitsient pogloshcheniya in sektitsida, chto ob{sup y}asnyaetsya takzhe trudnym protsessom pogloshcheniya u list'ev i smyvaniem insektitsida dozhdevoj vodoj, rosoj i tumanom. Na zemle obnaruzheno bol'shoe kolichestvo insektitsida. V svyazi s ehtim my schitaem, chto metodu vneseniya rastvorov somaticheskikh insektitsidov v pochvu dolzhno byt' otdano predpochtenie v bor'be s vreditelyami drevesnykh porod. (author)

A Comparison of Radioisotope Methods for River Flow Measurement; Comparaison de methodes radioisotopiques de mesure du debit des cours d'eau; Sravnenie radioizotopnykh metodov izmereniya rechnykh stokov; Comparacion de los metodos radioisotopicos para medir el caudal de los rios

Energy Technology Data Exchange (ETDEWEB)

Clayton, C. G.; Smith, D. B. [Wantage Research Laboratory Atomic Energy Research Establishment Wantage, Berks (United Kingdom)

1963-08-15

indikatornykh metodov izmereniya stoka rasstoyanie mezhdu tochkoj izmereniya i tochkoj vvedeniya indikatora dolzhno byt' dostatochno bol'shim, poskol'ku dolzhno proizojti polnoe smeshivanie. V to zhe vremya ehto rasstoyanie ne dolzhno byt' slishkom bol'shim, chtoby izbezhat' znachitel'noj prodol'noj dispersii ili poteri indikatora v rezul'tate pogloshcheniya ego dnom reki. Dispersiya zavisit ot gidravlicheskikh kharakteristik stoka, i ona kharakterna dlya ehtogo metoda. Pogloshchenie zavisit ot vybora indikatora i ot geologicheskoj prirody dna reki. Imenno s ehtoj tochki zreniya N{sup 3} yavlyaetsya ideal'nym indikatorom, poskol'ku on ne pogloshchaetsya. Odnako ego trudno izmeryat', i ego prokhozhdenie v reke ne mozhet byt' proslezheno neposredstvenno. Drugie indikatory bolee udobny, no oni mogut pogloshchat'sya. Stepen' pogloshcheniya Na{sup 24},Br{sup 82} i R{sup 32} v vide NaHC0{sub 3}, NH{sub 4}Br i NaN{sub 2}R0{sub 4} izuchalas' putem sravneniya dannykh izmerenij v neskol'kikh tochkakh vniz po techeniyu o obshchej tochki vvedeniya i putem vvedeniya mechennoj tritiem vody (NTO) odnovremenno s vvedeniem kazhdogo iz trekh indikatorov. Ustanovleno, chto R{sup 32}, kotoryj, kak ozhidalos', budet sil'no pogloshchat'sya khimicheski, yavlyaetsya na samom dele neprigodnym v kachestve indikatora bez nositelya dlya izmereniya rechnykh stokov, khotya s nositelem oshibka izmerenij znachitel'no men'she. Na{sup 24} i Br{sup 82} ne proyavlyayut priznakov pogloshcheniya ikh na znachitel'nykh rasstoyaniyakh, bol'she chem neobkhodimo dlya gorizontal'nogo smeshivaniya; na rasstoyanii svyshe 660 m v reke s samym medlennym techeniem obnaruzhivayutsya priznaki ischeznoveniya Na{sup 24}. Predstavleny nekotorye nablyudeniya otnositel'no stepeni gorizontal'noj i prodol'noj dispersii, kotoraya otrazhaetsya na obshchem primenenii indikatornykh metodov dlya izmerenij rechnykh stokov. Delaetsya vyvod, chto vse tri metoda mogut uspeshno primenyat'sya. Odnako metod nepreryvnogo otbora prob v konechnom

Selected Abstracts of the 1st Congress of joint European Neonatal Societies (jENS 2015; Budapest (Hungary; September 16-20, 2015; Session “Nutrition and gastroenterology”

Directory of Open Access Journals (Sweden)

Various Authors

2015-09-01

. RECRUITING AHEAD OF SCHEDULE TO A LARGE FEEDING TRIAL – LESSONS LEARNT FROM SIFT (THE SPEED OF INCREASING MILK FEEDS TRIAL • J. Dorling, J. Abbott, J. Berrington, E. Boyle, Z. Chivers, N. Embleton, E. Juszczak, A. Leaf, L. Linsell, S. Johnson, K. McCormick, W. McGuire, T. Roberts, B. StensonABS 28. PERINATAL INFLAMMATION AND CHILDHOOD ADIPOSITY – THE INFLUENCE OF GENDER • J. Donnelly, K. Lindsay, J. Walsh, M. Horan, D. O’Shea, E.J. Molloy, F. McAuliffeABS 29. THE ASSOCIATION BETWEEN MATERNAL NUTRITION AND LIFESTYLE DURING PREGNANCY AND OFFSPRING ADIPOSITY AT 2 YEARS OF AGE – ANALYSIS FROM THE ROLO STUDY • M.K. Horan, J.M. Donnelly, C.A. McGowan, E.R. Gibney, F.M. McAuliffeABS 30. COMPARISON OF FAT MASS INDEX, PERCENTAGE OF FAT MASS AND BODY MASS INDEX AS INDICATORS IN MONITORING THE TREATMENT OF OBESITY IN PREPUBERTAL CHILDREN • L. Pereira-da-Silva, M. Pitta-Grós-Dias, E. Dionísio, D. Virella, M. Alves, G. Cordeiro-FerreiraABS 31. MATERNAL NUTRITION AND GLYCAEMIC INDEX DURING PREGNANCY IMPACTS ON OFFSPRING ADIPOSITY AT 6 MONTHS OF AGE – ANALYSIS FROM THE ROLO RANDOMISED CONTROLLED TRIAL • M.K. Horan, C.A. McGowan, E.R. Gibney, J. Byrne, J.M. Donnelly, F.M. McAuliffeABS 32. PREGNANCY COMPLICATIONS AND EARLY POSTNATAL GROWTH VELOCITY IN VERY PRETERM INFANTS • L. Gagliardi, R. Bellù, E. Bertino, C. Corchia, E.M. Edwards, J.D. Horbar, R.F. Soll, E. Spada, R. ZaniniABS 33. CORD BLOOD LEPTIN AND IGF-1 ARE SUITABLE BIOCHEMICAL MARKERS TO DISTINGUISH BETWEEN NEWBORNS WITH SIMPLE FETAL MACROSOMIA AND INFANTS OF A DIABETIC MOTHER • R. Hentschel, J. Trost, M. Thill, A. Krause, M. Kunze, O. SchwabABS 34. MATERNAL ANTIBIOTICS AND TERM INFANT GUT COLONIZATION • G. Zachariassen, N. Hyldig, K. Shamrulazhar, L. Krych, G. Greisen, D.S. NielsenABS 35. INITIATION OF ENTERAL FEEDING DIET-DEPENDENTLY AFFECTS INTESTINAL DNA METHYLATION IN PRETERM PIGS • X. Pan, F. Gao, T. Thymann, P. SangildABS 36. GROWTH AND DEVELOPMENT OF PIGLETS FED INFANT FORMULAS VARYING IN

Distribution of Aerially Applied Malathion-S{sup 35} in a Forest Ecosystem; Distribution du malathion- {sup 35}S pulverise par avion dans un ensemble ecologique forestier; Raspredelenie malationa, mechennogo S35 i raspylyaemogo s vozdukha dlya izucheniya ehkologicheskoj sistemy lesnykh massivov; Distribucion en un sistema ecologico forestal de malation- 35S pulverizado desde el aire

Energy Technology Data Exchange (ETDEWEB)

Giles, Jr., R. H.; Peterle, T. J. [Ohio Co-Operative Wildlife Research Unit, Columbus, OH (United States)

1963-09-15

, mechennyj S{sup 35}, byl sintezirovan v Velikobritanii v Radiokhimicheskom tsentre EHmershem. Malation obshchej aktivnost'yu 1 kyuri byl raspylen na lesnom massive 20 akrov 15 i 20 maya 1962 goda. Spetsificheskaya aktivnost' sintezirovannogo malationa byla 17,5 millikyuri na millimol'. Izmeryalos' raspredelenie komponentov pri vozdushnom raspylenii v predelakh lesnogo massiva. S pomoshch'yu ehlektricheski upravlyaemykh probootbornikov vozdukha proizvodilas' otsenka granits zony raspyleniya; s pomoshch'yu napolnennykh geliem ballonov s okhlazhdaemymi steklyannymi diskami izmeryalos' osazhdenie nad kronoj; s pomoshch'yu vertikal'no ustanovlennykh steklyannykh diskov, a takzhe obraztsov kory izmeryalis' kolichestva osazhdayushchegosya malationa v razlichnykh gorizontal'nykh sloyakh lesa; s pomoshch'yu steklyannykh diskov i spetsial'noj bumagi s ehmalievym vkrapleniem mozhno bylo izmeryat' gorizontal'noe raspredelenie i proveryat' rabotu standartnogo ustrojstva dlya izucheniya raspredeleniya pri raspylenii. Izmerenie obraztsov pochv i markirovannykh vekh pozvolyalo izuchit' podpoverkhnostnoe raspredelenie. Po obraztsam vody, vzyatym iz ruch'ev, nasekomym, mlekopitayushchim, presmykayushchimsya i ptitsam mozhno bylo sudit' o pervonachal'nom i posleduyushchem raspredelenii insektitsida i ego produktov obmena v ehkologicheskoj sisteme. Izuchenie obitatelej lesa provodilos' v letnee vremya na protyazhenii 1961 - 1962 godov,i nekotoroe kolichestvo obzornykh dannykh budet polucheno letom 1963 goda. Predvaritel'nye rezul'taty ukazyvayut, chto kolichestvo nasekomykh vosstanovitsya do normal'nogo urovnya primerno cherez tri nedeli i chto ne nablyudaetsya zametnogo vozdejstviya na kolichestvo pozvonochnykh zhivotnykh, obitayushchikh v zonf raspyleniya. (author)

Radio Column Chromatographic Assay of H{sup 3}-Labelled Substances; Analyse par radiochromatographie en colonne, de substances marquees par le tritium; Radiokhromatograficheskoe ispytanie mechennykh tritiem veshchestv na kolonke; Analisis por radiocromatografia en columna de sustancias marcadas con {sup 3}H

Energy Technology Data Exchange (ETDEWEB)

Scharpenseel, H W; Menke, K H [Institute of Soil Science and Institute of Animal Husbandry, Bonn University, Bonn (Germany)

1962-01-15

kreministym maslom v svetovoj trube s reflektorom TiO{sub 2}. Podobnym obrazom ehflyuent s soderzhaniem H{sup 3} mozhno napravit' cherez issleduemuyu ampulu, napolnennuyu - podobno tomu kak ehto delaetsya po metodu SHTEJNBERGA, - plastikovymi sharikami stsintillyatora. EHti dva podkhoda, okazavshiesya vpolne udovletvoritel'nymi v sluchae s C{sup 14}, imeyut nizkuyu ehffektivnost' scheta dlya tritiya, t.e. menee 1%, iz-za neblagopriyatnoj poverkhnosti v otnoshenii ob{sup e}mnogo sootnosheniya. 2. EHflyuent kolonki ob{sup e}dinyaetsya pri sootnoshenii 1:30 so smes'yu toluol/ehtanol v sootnoshenii 3:2 pri pomoshchi magnitnogo vibratora eshche do ispytaniya, t.e. vo vremya prokhozhdeniya cherez steklyannyj sosud iz K{sup 40} mezhdu fototrubkami analizatora i monitora. Dlya obespecheniya laminarnogo potoka i postoyanno smeshannogo : ob{sup e}mnogo sootnosheniya primenyayutsya dozirovochnye nassoy po sozdaniyu na kolonke amortizatora i 30-fold ob{sup e}ma toluola/ehtanola . EHffektiv- noet' scheta tritiya kolebletsya v srednem ot 2,5 do 4% dlya katushek, rasprostranyayushchikhsya po vsemu diametru fototrubok. 3. EHflyuent vodyanoj kolonkhi propuskhaetsya cherez napolnennyj antratsenom stekhlyannyj sosud, i podschet H{sup 3} proizvoditsv s tochnost'yu, bliskhoj 1%. (author)

Design and Function of a Brain Scanner for Clinical Use; Etude d'un Appareil de Scintigraphy du Cerveau - Son Role Clinique; Ustrojstvo i funktsiya pribora dlya skennirovaniya mozga i ego klinicheskoe ispol'zovanie; Diseffo y Funcion de un Aparato de Exploracion del Cerebro para Uso Clinico

Energy Technology Data Exchange (ETDEWEB)

Paul, W.; Morley, T. P. [Department of Pathological Chemistry and Department of Surgery, University Of Toronto (Canada)

1964-10-15

predstavljajutsja v vide asimetrogammagramm i razdel'nyh levogo i pravogo fotograficheskih dvuhrazmernyh izobrazhenij. Impul'sy ot kazhdogo detektora podajutsja na kontur usilitel'-diskriminator i zatem na differencial'nyj kontur, kotoryj pechataet levuju ili pravuju otmetki s cel'ju pokaza preobladanija koncentracii radioaktivnosti sleva ili sprava. Impul'sy ot kazhdogo kontura usiljtel'-diskriminator podajutsja takzhe na pereschetnye ustrojstva, kotorye v svoju ochered' vozbuzhdajut lampy, ustanovlennye v svetonepronicaemom pomeshhenii. Dve lampy, intensivnost' sveta kotooyh poedstavljaet soboj Funkciju aktivnosti, izmerennoj sootvetstvujushhimi detektorami, montirujutsja na obshhej podstavke, peredvigaemoj s pomoshh'ju dvigatelej Sel'sina v sisteme detektora sinhronno s generatorami Sel'sina, tem samym davaja vozmozhnost' primenjat' ustanovlennuju na rasstojanii registrirujushhuju ustanovku. Cilindricheskie linzy fokusirujut lampovye istochniki na plenku, pri jetom registracija kak sprava, tak i sleva osushhestvljaetsja odnovremenno na rentgenovskoj plenke razmerom 28 ch 36 sm. Hotja operator mozhet ustanovit' sootvetstvujushhuju predvaritel'no opredelennuju velichinu srednej sily toka lampy v shirokom diapazone skorosti scheta, operatoru predostavljaetsja bol'shaja svoboda v svjazi s nalichiem v kassete treh plenok, kazhdaja iz kotoryh obespechivaet optimal'nuju kontrastnost' v razlichnom diapazone skorosti scheta. Pacientam vvodilis' 350 mkjuri joda-131 s syvorotochnym al'buminom cheloveka posle predvaritel'noj obrabotki rastvorom Ljugolja. Skennirovanie osushhestvljalos' cherez 24 - 72 chasa. Obychno bylo dostatochno poluchenija odnoj skennogrammy. U nekotoryh pacientov skennogrammy snimalis' povtorno v peredne-zadnem napravlenii. V period s sentjabrja 1961 goda po nojabr' 1962 goda u 653 pacientov bylo snjato 789sken- nogramm. U 109 pacientov iz jetogo chisla diagnoz podtverdilsja, u 88 pacientov byli obnaruzheny opuholi. Byla ustanovlena lokalizacija 23 iz 30 glioblastom i

Tracer Experiments on Food Exchange in Ants and Termites; Emploi des radioindicateurs dans l'etude de la trophallaxis chez les fourmis et les termites; Izuchenie s pomoshch'yu indikatorov obmena pishchej u murav'ev i termitov; Empleo de indicadores radiactivos para estudiar la trofalaxia en las hormigas y los termites

Energy Technology Data Exchange (ETDEWEB)

Gosswald, K.; Kloft, W. [Institute of Applied Zoology, University of Wurzburg, Federal Republic of Germany (Germany)

1963-09-15

murav'i, medonosnye pchely i termity yavlyaetsya ikh stremlenie k trofollakticheskomu obmenu pishchej, kotoryj mokhet byt' khorosho izuchen s pomoshch'yu mechennoj radioaktivnymi veshchestvami pishchi. Pri sravnitel'nom izuchenii samaya vysokaya skorost' obmena byla obnaruzhena u medonosnykh pchel, v to vremya kak u razlichnykh podsemejstv murav'ev ona byla chrezvychajno raznoobraznoj, chto dolkhvo byt' uchteno pri provedenii polevykh ehksperimentov s primeneniem indikatorov. Samoe sil'noe stremlenie k trofollakticheskomu obmenu my obnaruzhili u podsemejstva Camponotlnae. Usilenno izuchalis' murav'i Genus Formica.osobenno Formica polyctena (Forst.), i rodstvennye poligennye i polycalous vidy, kotorye igrayut vakhnuyu rol' v predupreditel'noj biologicheskoj bor'be s nasekomymi-vreditelyami lesa. Ustanovleno, chto skorost' obmena pishchej v odnom muravejnike obuslovlena temperaturoj, vremenem, kolichestvom osobej i nasyshcheniem. Drugoj problemoj yavlyaetsya vopros o tom, sushchestvuet li obmen pishchej mekhdu razlichnymi muravejnikami kolonii murav'ev odnogo vida. Pometiv otdel'nye muravejniki s pomoshch'yu vneseniya radioaktivnoj pishchi, my smogli obnaruzhit' intensivnyj obmen pishchej mekhdu razlichnymi muravejnikami kolonii, otstoyashchimi drug ot druga na rasstoyanie do 200 m. Analogichnye rezul'taty my poluchili dlya trekh razlichnykh kolonij v razlichnye gody. Sushchestvovanie takogo dal'nego obmena pishchej yavlyaetsya ochen' vakhnym dlya otsenki reguliruptsego dejstviya poleznykh vidov murav'ev v otnoshenii nasekomykhvreditelej. Lelo v tom, chto obmen prepyatstvuet bystromu nasyshcheniyu populyatsii lyubogo muravejnika vsledstvie mestnoj massovoj invazii nasekomykh v ikh predydushchem gnezde. Kak pokazali ehksperimenty s primeneniem indikatorov, sobrannaya pishcha popadaet v bol'shinstvo okruzhayushchikh muravejnikov kolonii murav'ev. Poehtomu kolonii ehtikh poleznykh lesnykh murav'ev dejstvuyut kak slokhnaya sistema s vysokoj ehkologicheskoj ehffektivnost'yu. S

Selected Abstracts of the 9th International Workshop on Neonatology; Cagliari (Italy; October 23-26, 2013

Directory of Open Access Journals (Sweden)

--- Various Authors

2013-06-01

, F. Chiale, E. Bertino; Addis Ababa (Ethiopia and Turin (Italy ABS 61. Admission chemistry blood tests from umbilical cord and from infant: are they comparable? • L. Massenzi, S. Donno, S. Abuhajar, F. Papa, C. Gizzi, G. Bonatti, R. Evangelisti, A.C. Massolo, C. Consigli, E. Sorrentino, C. Haass, R. Agostino; Rome (Italy ABS 62. Urine metabolomic setting in normal newborn: methodological approach • M.G. Pattumelli, V. Fiorenza, S. Ciccarelli, C. Ossicini, R. Agostino; Rome (Italy ABS 63. Universal neonatal hearing screening and follow up • L. Occhi, G. Prandi, D. Di Lisi, P. Consolino, A. Leone, P. Di Nicola, M. Raia, E. Maggiora, C. Tortone, S. Carbonati, E. Bertino, C. Fabris; Turin (Italy ABS 64. Use of umbilical cord blood (UCB for neonatal early onset sepsis screening • G. Bonatti, M. Evangelisti, S. Donno, A.C. Massolo, C. Consigli, E. Sorrentino, L. Massenzi, S. Abuhajar, C. Gizzi, P. Pasqualetti, R. Agostino, M. Finocchi; Rome (Italy ABS 65. Severe hypoglycaemia associated with cholestatic jaundice in the newborn: a possible marker of congenital hypopituitarism • P. Cavarzere, L. Chini, S. Spada, P. Biban; Verona (Italy ABS 66. Caesarean section and asthma in children: a case-control study • S. Orani, M. Copula, M. Peri, A. Dessì, G.B. Corona, A.M. Nurchi; Cagliari (Italy ABS 67. Pax-2 immunoreactivity in human developing kidney • F. Farci, G. Senes, D. Fanni, C. Gerosa, E. Puxeddu, G. Faa, V. Fanos, R. Ambu; Rome (Italy ABS 68. Effect of surfactant therapy on cardiac enzyme levels in very low birth weight infants with respiratory distress syndrome: a preliminary study • S. Takci, M. Yurdakok, O. Onay, A. Korkmaz, S. Yigit; Ankara (Turkey ABS 69. Combined effects of gestational age and lactation stage on the metabolite profile of human breast milk: a 1H-NMR investigation • F. Cesare Marincola, A. Noto, L. Atzori, A. Reali, V. Fanos; Cagliari (Italy ABS 70. Identification of cell-mediated immunity reference values for a population of preterm

Selected Abstracts of the 13th International Workshop on Neonatology; Cagliari (Italy; October 25th-28th, 2017

Directory of Open Access Journals (Sweden)

--- Various Authors

2017-10-01

. IMBALANCE OF PRO- AND ANTI-INFLAM­MA­TORY CYTOKINES IN COMMUNITY ACQUIRED PNEUMONIA OF CHILDREN WITH DIFFERENT LEVELS OF PHYSICAL DEVELOPMENT • T.V. Frolova, O.S. BorodinaABS 56. THINK FIRST ABOUT WHAT’S COMMON • C. Spiga, F. Ferendeles, N. Garau, R. Mazzitti, S. Ibba, A. Cirina, A. Atzei, P. Neroni, M. Puddu, G. OttonelloABS 57. A COMPLEX CASE OF ANOMALOUS LEFT CORONARY ARTERY ORIGIN FROM THE PULMONARY ARTERY (ALCAPA • F. Bardanzellu, P. Neroni, P.P. Bassareo, M. Puddu, G. OttonelloABS 58. SLEEP-DISORDERED BREATHING IN CHIL­DREN WITH RECURRENT WHEEZING/ASTHMA: A SINGLE CENTRE STUDY • M. Zaffanello, E. Gasperi, L. Tenero, M. Piazza, A. Pietrobelli, L. Sacchetto, F. Antoniazzi, G. PiacentiniABS 59. UNUSUAL GLOMERULAR SHAPE IN TRISOMY 21 • A. Ravarino, C. Rossi, L. Ippolito, C. Gerosa, V. Marinelli, V. Fanos, Y. Gibo, G. FaaABS 60. A STEP TOWARDS A SAFER DISCHARGE: THE EVALUATION OF CARDIORESPIRATORY STABILITY IN PRETERM NEWBORN • E. Maggiora, E. Cocchi, F. Logrippo, A. Pirra, C. Plazzotta, S. Viola, R. Bagna, A. Coscia, E. Bertino, F. CresiABS 61. NASAL OBSTRUCTION AND SLEEP DIS­OR­DERED BREATHING DURING CLINICAL PRAC­TICE IN CHILDREN • M. Zaffanello, E. Gasperi, L. Tenero, M. Piazza, S. Bonafini, L. Nosetti, L. Sacchetto, G. PiacentiniABS 62. IS THE BODY POSITION REALLY HELPFUL FOR THE STABILIZATION OF PRETERM BABIES WITH PATENT OF DUCTUS ARTERIOSUS IN NURSING CARE? A LITERATURE REVIEW • F. De Matteis, C. Taberna, M Ariotti, P. Murru, E. BertinoABS 63. P57 EXPRESSION IN MALE AND FEMALE PLACENTAS • E. Di Felice, C. Rossi, L.Vinci, C. GerosaABS 64. IRON SUPPLEMENTATION IN PRETERM NEW­BORNS: SULFATE OR BISGLYCINATE CHELATE IRON? • S. Viola, E. Maggiora, R. Bagna, E. Spada, E. BertinoABS 65. LIVER BIOPSY INTERPRETATION IN WILSON DISEASE IN CHILDHOOD: A REPORT OF 12 CASES • V. Vallascas, M. Moi, C. Gerosa, A.M. Nurchi, P. Van Eyken, D. FanniABS 66. A NEW APPROACH TO REDUCE CHILDREN’S FEAR • M. Aprile, C. Pala, C. Cuscusa, S. Puggioni, G. Bogo