DECAY OF Ba$sup 13$$sup 3$

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ramaswamy, M.K.; Skeel, W.L.; Jastram, P.S.

1960-06-01

The gamma rays following the electron-capture decay of 7.5 year Ba/sup 133/ were studied by means of a coincidence scintillation spectrometer. Gamma rays at 79, 79, 274, presence of a 56 kev gamma ray was confirmed. The resulting decay scheme with levels at 79, 158, 381, and 437 kev is in excellent agreement with previous work. Spin and parity assignments are made for these levels. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wolfrom, M.L.

G-values for irradiated sucrose, methyl alpha -Dglucopyranoside, and maltose are reported. Trehalose (aqueous) is hydrolyzed by cathode ray irradiation. The per cent hydrolysis of trehalose increases with increasing irradiation dosage. One reducing substance other than D-glucose was detected in the product of irradiated powdered crystalline D-glucose. (auth)

Harwell high pressure heat transfer loop

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bennett, A.W.; Keeys, R.K.F.

1967-12-15

A detailed description is presented of the Harwell (Chemical Engineering and Process Technology Division) high pressure, steam-water heat transfer loop; this description is aimed at supplementing the information given in reports on individual experiments. The operating instructions for the loop are given in an appendix. (auth)

SOME DATA ON THE ROTATIONAL MAGNETO-MECHANIC EFFECT IN A LOW-PRESSURE PLASMA (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Urazakov, E.I.

1963-01-01

The rotational magneto-mechanic effect in a low pressure plasma previously discovered is studied quantitatively. The dependence of the angular momentum in the plasma on the magnetic field strength, pressure and nature of gas and magnitude of current flowing through the plasma are determined. The rotational magneto-mechanical effect has also been detected in the plasma of inert gas produced by a high frequency field. (auth)

Ada (Trade Name) Compiler Validation Summary Report: Harris Corporation Harris Ada Compiler, Version 1.3 Harris HCX-7.

DTIC Science & Technology

1987-06-03

Harris Corp. Harris Ada Compiler, Ver.1.3 Harris HCX-7 6. PERFORMING ORG. REPORT NUMBER 7 AUTH R(s 8. CONTRACT OR GRANT...VALIDATION SUMMARY REPORT : Harris Corporation Harris Ada Compiler, Version 1.3 Harris HCX-7 Completion of On-Site Testing: 3 June 1987 & .. . 0 Prepared...Place NTIS form here + .. . .. . .. .. Ada’ Compiler Validation Summary Report : Compiler Name: Harris Ada Compiler, Version 1.3 Host: Target: Harris

EZQUERY

DOE Office of Scientific and Technical Information (OSTI.GOV)

Holcomb, F.; Kroes, J.; Jessen, T.

1973-10-18

EZQUERY is a generalized information retrieval and reporting system developed by the Data Processing Services Department to provide a method of accessing and displaying information from common types of data-base files. By eliminating the costs and delays associated with coding and debugging special purpose programs, it produces simple reports. It was designed with the user in mind, and may be used by programmers and nonprogrammers to access data base files and obtain reports in a reasonably brief period of time. (auth)

SegAuth: A Segment-based Approach to Behavioral Biometric Authentication

PubMed Central

Li, Yanyan; Xie, Mengjun; Bian, Jiang

2016-01-01

Many studies have been conducted to apply behavioral biometric authentication on/with mobile devices and they have shown promising results. However, the concern about the verification accuracy of behavioral biometrics is still common given the dynamic nature of behavioral biometrics. In this paper, we address the accuracy concern from a new perspective—behavior segments, that is, segments of a gesture instead of the whole gesture as the basic building block for behavioral biometric authentication. With this unique perspective, we propose a new behavioral biometric authentication method called SegAuth, which can be applied to various gesture or motion based authentication scenarios. SegAuth can achieve high accuracy by focusing on each user’s distinctive gesture segments that frequently appear across his or her gestures. In SegAuth, a time series derived from a gesture/motion is first partitioned into segments and then transformed into a set of string tokens in which the tokens representing distinctive, repetitive segments are associated with higher genuine probabilities than those tokens that are common across users. An overall genuine score calculated from all the tokens derived from a gesture is used to determine the user’s authenticity. We have assessed the effectiveness of SegAuth using 4 different datasets. Our experimental results demonstrate that SegAuth can achieve higher accuracy consistently than existing popular methods on the evaluation datasets. PMID:28573214

SegAuth: A Segment-based Approach to Behavioral Biometric Authentication.

PubMed

Li, Yanyan; Xie, Mengjun; Bian, Jiang

2016-10-01

Many studies have been conducted to apply behavioral biometric authentication on/with mobile devices and they have shown promising results. However, the concern about the verification accuracy of behavioral biometrics is still common given the dynamic nature of behavioral biometrics. In this paper, we address the accuracy concern from a new perspective-behavior segments, that is, segments of a gesture instead of the whole gesture as the basic building block for behavioral biometric authentication. With this unique perspective, we propose a new behavioral biometric authentication method called SegAuth, which can be applied to various gesture or motion based authentication scenarios. SegAuth can achieve high accuracy by focusing on each user's distinctive gesture segments that frequently appear across his or her gestures. In SegAuth, a time series derived from a gesture/motion is first partitioned into segments and then transformed into a set of string tokens in which the tokens representing distinctive, repetitive segments are associated with higher genuine probabilities than those tokens that are common across users. An overall genuine score calculated from all the tokens derived from a gesture is used to determine the user's authenticity. We have assessed the effectiveness of SegAuth using 4 different datasets. Our experimental results demonstrate that SegAuth can achieve higher accuracy consistently than existing popular methods on the evaluation datasets.

PL-3, PHASE I, TASK 3, RESEARCH AND DEVELOPMENT REPORT

DOE Office of Scientific and Technical Information (OSTI.GOV)

Humphries, G. E.

1962-03-12

Results of researeh and development tasks are presented along with recommendations for future development work Work (s reported ofn the areas of plant assembly and relocation, housings and footings, waste heat dissipation, instrumentation, refueling systems, waste disposal, shiceding, core nuclear thermal and hydraulic studies, gaseous waste processing, and critical experiments on a 5 x 5 array of Type 3 fuel elements. (auth)

ELECTROLYTIC SOLUTIONS. Annual Progress Report, May 1, 1962-June 1, 1963

DOE Office of Scientific and Technical Information (OSTI.GOV)

Braunstein, J.

Results of investigations of the thermodynamics of association in molten salts and in concentrated aqueous electrolyte solutions are reported. Association constants of Pb(II) with chloride or bromide and of Cd(II) with chloride or bromide in molten mixtures of LiNC/sub 3/ and KNO/sub 3/ were measured potentiometrically at several temperatures and compared with previous results in mixtures of NaNO/sub 3/ and KNO/sub 3/. The anomalous'' solvent effect of lithium ion, reported previously for the association of Cd(II) with bromide was observed aiso for the other associations and a tentative explanation is suggested. The temperature dependence of the association constants was foundmore » to be in agreement with the quasi-lattice model. The association constant of Ag(I) with iodide in molten mixtures of NaNO/sub 3/ and KNO/sub 3/ was measured and compared with previous results in pure KNO/sub 3/. The solvent effect was consistent with the reciprocal coulomb effect.'' Techniques were developed, and preliminary results obtained for measuring association constants in the solvent system KNO/sub 3/--Ca(NO/sub 3/)/sub 2/ in order to investigate the effect of charge as well as size of solvent cation on association constants in molten salt solutions. The measurement of association constants in concentrated aqueous electrolyte solutions was continued. The association of Cd(II) with bromide in aqueous LiNC/sub 3/ was measured as part of a program to find a system that would lend itself to investigation over the range between anhydrous molten salt and aqueous electrolyte solution. Cells and electrodes were developed for investigating association constants in equimolar LiNO/sub 3/ -KNO/sub 3/ with controlled small water contents, and preliminary results are reported. (auth)« less

Plague and the gallium scan: case report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Stahly, T.L.; Shoop, J.D.

1975-11-01

Inflammation in the right axillary lymph nodes and the meninges was detected by $sup 67$Ga-citrate scans in an 11-year-old boy with Yersinia pestis infection. This case provides another example of $sup 67$Ga localizing to areas of infection, indicating potential utility in future cases of bubonic plague. (auth)

RESEARCH AND DEVELOPMENT ON ADVANCED GRAPHITE MATERIALS. Final Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1962-04-01

A review is given of activities over the period October 15, 1960 to October 15, 1961 on a three year program for the research and development of materials, experimental techniques, and equipment for development of premium quality, reproducible graphite-base materials suitable for missile and astronautic applications. Progress is reported on research and development in the study areas of raw materials, fabrication, and material characterization and evaluation. (auth)

SEPARATION OF SOME RARE EARTHS BY REVERSED-PHASE PARTITION CHROMATOGRAPHY. Report No. 129/V; Rozdzielenie Niektorych Ziem Rzadkich za Pomoca Chromatografii Podzialowej z Odwroconymi Fazami

DOE Office of Scientific and Technical Information (OSTI.GOV)

Siekierski, S.; Fidelis, I.

1960-01-01

The reversed phase partition chromatography was applied to the separation of small amounts of some rare earths. As a stationary phase TBP was used. and the elution was carried out with concentrated HNO/sub 3/. (auth)

THE ASSOCIATION OF THYROID CANCER AND PRIOR IRRADIATION IN INFANCY AND CHILDHOOD

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rose, R.G.; Hartfield, J.E.; Kelsey, M.P.

1963-07-01

Review of the literature has revealed a growing volume of reports associating irradiation of the thymus or of the head and neck area, during infancy and adolescence, with subsequent development of cancer of the thyroid. Of the 426 individuals with thyroid cancer seen at The University of Texas M. D. Anderson Hospital and Tumor Institute from 1944 through 1961, 216 replied to questionnaires concerning prior irradiation. Of this number, 70 reported a positive history of preirradiation. Acne was the most common reason given for therapy. The latent interval between irradiation and onset of cancer averaged 12 years. Both of themore » children under 10, thirteen of the 17 patients under 16, and twenty of the 33 patients under 20 years of age at time of diagnosis of thyroid cancer had a history of previous irradiation. The evidence gathered to date is provocative enough to suggest caution in the use of irradiation in the management of benign conditions of the head, neck, and chest in infants and children. (auth)« less

THE DIFFUSION LENGTH OF THERMAL NEUTRONS IN PORTLAND CONCRETE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Dugdale, R.A.; Healy, E.

1957-10-01

A measurement of the diffusion length of thermal neutrons in Portland concrete, originally raade by Salmon two years previously, has been repeated. An apparent decrease from 7.04 cm to 6.61 cm has oocurred. This change, which is only four times the standard deviation of the result, could be due to a small increase in water content. In assessing the amount required, a discrepancy between calculated and measured diffusion length was found. Possible explanations of the discrepancy are discussed. (auth)

Three cases of radiation cancer in head and neck (in Japanese)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Yoshimura, J.; Kitamura, K.; Yamaguchi, H.

1973-03-01

Three cases, previously treated with x-ray therapy for the cervical tuberculous lymphadenitis, were diagnosed as radiation cancer. Tumors were located in the neck, hypopharynx, and larynx, respectively. The severe radintion damage on the skin or subcutaneous tissues of the neck was observed in all cases. The latent period of the three cases ranged from 25 to 37 years. The etiology of the irradiation canoer was diagnosed. The prophylaxis of the irradiation cancer should be emphasized. (auth)

Investigation of gamma-ray induced polymer formation of the carboranes. Annual progress report, November 1, 1972--September 30, 1973

DOE Office of Scientific and Technical Information (OSTI.GOV)

Klingen, T.J.

1973-10-01

Research is reported on the radiation chemistry of o-carborane STA 1, 2- dicarba-closo-dodecaborane (11)! and its l-alkyl and 1-alkenyl derivatives. The principal purpose of the research is to establish optirmum conditions for radiation-induced polymerization of such compounds. Properties and structures of polymeric products, identities and yields of minor products, and reaction mechanisms are being determined. (auth)

Bibliography of mass spectroscopy literature for 1972 compiled by a computer method. Volume I. Bibliography and author index

DOE Office of Scientific and Technical Information (OSTI.GOV)

Capellen, J.; Svec, H.J.; Sage, C.R.

1975-08-01

This report covers the year 1972, and lists approximately 10,000 articles of interest to mass spectroscopists. This two-volume report consists of three sections. Vol. I contains bibliography and author index sections. The bibliography section lists the authors, the title, and the publication data for each article. The author index lists the authors' names and the reference numbers of their articles. (auth)

False-positive liver scan in a patient with hepatic amyloidosis: case report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Suzuki, K.; Okuda, K.; Yoshida, T.

1976-01-01

A case of secondary hepatic amyloidosis exhibiting a large liver and multiple defects on the $sup 198$Au-radiocolloid scintigraph is presented. Biopsy and angiographic studies indicated that the areas of reduced colloid uptake represented heavy amyloid deposition, and the area of the left lobe with contrasting high activity most probably represented compensatory hypertrophy. (auth)

CHARGED HEAVY MESONS (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Leprince-Ringuet, L.

1960-03-01

The general properties of heavy mesons and hyperons are reviewed, and the results obtained with cosmic-ray studies at the Pic du Midi are reported. The investigations made with accelerators in the study of mesons are then described. The basic problems posed by heavy mesons and hyperons are reviewed with emphasis on the isotopic spin, strangeness, and parity. (tr-auth)

THE ARMOUR DUST FUELED REACTOR (ADFR). Quarterly Progress Report No. 2 For the Period May 21, 1958 to August 21, 1958

DOE Office of Scientific and Technical Information (OSTI.GOV)

Loewe, W.E.; Krucoff, D.

1958-10-31

Study of the ADFR concept included experimental work on fuel dust suspension stability and redispersibility, erosion, and dust deposition using the fuel dust circulation loop. Some theoretical work was done in the areas of reactor safety and breeding. (For preceding period -see AECU-3827.) (auth)

Medical History in the Hellenic Journal of Nuclear Medicine.

PubMed

Otte, Andreas

2017-01-01

The Hellenic Journal of Nuclear Medicine is about to celebrate its 20th anniversary end of 2017. On board of the editorial team since 2003, this journal has influenced me like a good friend over the many past years. From time to time, the journal has published interesting and valuable historical notes. They show that nuclear medicine has a history and that medicine is its basis. They also teach us today, and some of the ancient perspectives and approaches are still valid. The reader of HJNM may be interested in these historical contributions, as they are timeless. Therefore, it was our idea to summarize these in the following pages. Where there is a link to the free article, this is noted. Upon opening all articles, you will find out that these are a book or so of its own. In thanks to the editor-in-chief of the Journal for his continuing support on the historical section. Below we refer to the historical papers of the Journal: History of Nuclear Medicine. Nuclear Medicine and History of Science and Philosophy: Atomic Theory of the Matter. G.N. Sfakianakis, 2001; 4(3); 155-60. Editorial. Pioneers of nuclear medicine, Madame Curie. P.C. Grammaticos. 2004; 7(1); 29-30. http://nuclmed.web.auth.gr/ magazine/eng/jan04/editorial.htm Editor's note. Hippocrates' Oath. The editor. 2004; 7(1); 31. Editorial. Useful known and unknown views of the father of modern medicine, Hippocrates and his teacher Democritus. P. Grammaticos, A. Diamantis. 2008; 11(1): 2-4. http://nuclmed.web.auth.gr/magazine/eng/jan08/2.pdf Special Article. The contribution of Maria Sklodowska-Curie and Pierre Curie to Nuclear and Medical Physics. A hundred and ten years after the discovery of radium. A. Diamantis, E. Magiorkinis, 2008; 11(1): 33-8. http://nuclmed.web.auth.gr/magazine/ eng/jan08/33.pdf Brief Historical Review. Lymphatic system and lymphoscintigraphy. P. Valsamaki. 2009; 12(1): 87-89. http://nuclmed.web. auth.gr/magazine/eng/jan09/89.pdf (In Greek) Historical Review. The philosophic and biological views of the "atomic" philosophers, Leucippus and Democritus. E. Magiorkinis. A. Beloukas, A. Diamantis. 2010; 13(2): 111-117. http://nuclmed.web.auth.gr/magazine/eng/may10/9.pdf Correspondence. Neuroimaging in mild traumatic brain injury and M. Ravel's injury. A. Otte. 2012; 15(1): 76. http://nuclmed. web.auth.gr/magazine/eng/jan12/3.pdf Selected Brief Contributions. The "atomic theory" of Leucippus, and its impact on medicine before Hippocrates. G. Tsoucalas, K. Laios et al. 2013; 16(1): 68-9. http://nuclmed.web.auth.gr/magazine/eng/jan13/72.pdf Selected Brief Contributions. Computed tomography alone reveals the secrets of ancient mummies in medical archaeology. A. Otte, T. Thieme et al. 2013; 16(2): 148-9. http://nuclmed.web.auth.gr/magazine/eng/may13/70.pdf Editorial. The timeless influence of Hippocratic ideas on diet, salicylates and personalized medicine. T.C. Karagiannis. 2014; 17(1): 2-6. http://nuclmed.web.auth.gr/magazine/eng/jan14/1.pdf Historical Article. The physician who first applied radiotherapy, Victor Despeignes, on 1896. M. Sgantzos, G. Tsoucalas et al. 2014; 17(1): 45-6. http://nuclmed.web.auth.gr/magazine/eng/jan14/11.pdf Original Articles. Medical practice applied in the ancient Asclepeion in Kos island. M. Mironidou-Tzouveleki, P.M. Tzitzis. 2014; 17(3): 167-70. http://www.nuclmed.web.auth.gr/magazine/eng/sept14/3.pdf Special Historical Article. How a tertiary medical nuclear medicine department at the Himalayan area in India can be established and function in an exemplary manner. Basic rules revisited. V.K. Dhingra, S. Saini et al. 2015; 18(3): 252-6. http:// nuclmed.web.auth.gr/magazine/eng/sept15/13.pdf Historical and Commentary Note. Johann Sebastian Bach's "Goldberg variations" to treat insomnia from renal lithiasis pain. Sleep research in Nuclear Medicine. A. Otte. 2016; 19(1): 13-4. http://nuclmed.web.auth.gr/magazine/eng/jan16/06.pdf Historical Review. The first medical ethics and deontology in Europe as derived from Greek mythology. M.K. Konstantinidou. 2016; 19(2): 155-8.http://nuclmed.web.auth.gr/magazine/eng/may16/11.pdf Historical-Technical Article. The beginning of using X-rays and the evolution of equipment for the treatment of ocular cancer. K. Laios, M. Zozoglou. 2017; 20(1): Ahead of print. And hopefully many more to follow!

Serologic test development. Progress report, July 1, 1974--June 30, 1975. [Radioimmunoassay method for diagnosis of swine and bovine diseases

DOE Office of Scientific and Technical Information (OSTI.GOV)

Saunders, G.C.; Clinard, E.H.; Sanders, W.M.

1975-01-01

The Enzyme-Labeled Antibody (ELA) test system has been adapted to microtiter trays for both cell bound and soluble antigens. Problems involving both readout instrumentation and reaction product stability have been solved. Progress involving application of the ELA system for detection of hog cholera, trichinosis, swine brucellosis, and swine and bovine tuberculosis is reported. Prototype instrumentation for automating ELA processing is being developed. (auth)

RESULTS OF COMPUTATIONS MADE FOR DASA-USNRDL FALLOUT SYMPOSIUM

DOE Office of Scientific and Technical Information (OSTI.GOV)

Read, R.; Wagner, L.; Moorehead, E.

1962-11-01

The regression techniques introduced by the Civil Defense Research Project for estimating fallout particle deposition coordinates, their standard ellipses, and isointensity contours have been applied to some of the homework problems assigned for the DASA-USNRDL Fallout Symposium. The results are reported and the estimates are contrasted with estimates based on the assumption that winds are invariant with time. (auth).

Temporal aspects of tumorigenic response to individual and mixed carcinogens. [Response of mouse skin to benzo(a)pyrene

DOE Office of Scientific and Technical Information (OSTI.GOV)

Albert, R.E.; Burns, F.J.

1976-02-01

Results are reported from experiments that involved either single or multiple doses of benzo(a)pyrene in mouse skin followed by prolonged observation. Preliminary results indicate linearity in dose and time and no evidence of recovery or enhancement for multiple doses of initiator given for extended periods of time. (auth)

Successful management of lichen myxedematosus

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hill, T.F.; Crawford, J.N.; Rogers, C.C.

1976-01-01

Radiation therapy led to local resolution of a case of lichen myxedematosus, which, to our knowledge, is the first reported successful treatment of the disease by radiation therapy. Radiation therapy is only the second therapeutic modality that is effective in the treatment of lichen myxedematosus. We propose specific criteria for the diagnosis of lichen myxedematosus to facilitate future studies into the nature of this disease. (auth)

Method of extracting heat from dry geothermal reservoirs

DOEpatents

Potter, R.M.; Robinson, E.S.; Smith, M.C.

1974-01-22

Hydraulic fracturing is used to interconnect two or more holes that penetrate a previously dry geothermal reservoir, and to produce within the reservoir a sufficiently large heat-transfer surface so that heat can be extracted from the reservoir at a usefully high rate by a fluid entering it through one hole and leaving it through another. Introduction of a fluid into the reservoir to remove heat from it and establishment of natural (unpumped) convective circulation through the reservoir to accomplish continuous heat removal are important and novel features of the method. (auth)

Maintenance and Preservation of Concrete Structures. Report 3. Abrasion-Erosion Resistance of Concrete.

DTIC Science & Technology

1980-07-01

ORG. REPORT NUMBER 7. AUTH R(s) 11. CONTRACT OR GRANT NUMBER(&) Tony C Liu C I PERFORMING ORGANIZATION NAME AND ADDRESS 10. PROGRAM ELEMENT. PROJECT... organic acids, alkalis, solvents, etc. Polyurethane 25. Two types of elastomeric polyurethane systems were investi- gated: T19 and T21. a. The T19 specimens...polymer with a viscosity of about 450 cps at 250 C. The catalyst used to polymerize the resin is an organic acid. The mixing ratio of the resin to

Q & A with Ed Tech Leaders: Interview with Stavros Demetriadis

ERIC Educational Resources Information Center

Fulgham, Susan M.; Shaughnessy, Michael F.

2013-01-01

Stavros Demetriadis is currently an Assistant Professor with the Department of Informatics, Aristotle University of Thessaloniki (AUTh) in Greece. He also earned his Bachelor's degree in Physics and a Master Diploma in Electronic Physics from AUTh. He became interested in information and communications technologies when he was a high school…

The Accounting System and Resource Allocation Reform in a Public University

ERIC Educational Resources Information Center

Spathis, Charalambos; Ananiadis, John

2004-01-01

This paper studies the accounting system reform practised in Greek universities since January 2000, and more particularly at the Aristotle University of Thessaloniki (AUTH). It specifically examines the allocation of resources to faculties by university management based on certain criteria. The AUTH is the largest public university in Greece and…

APPLICATION OF HEAVY MEDIA SEPARATION, FLOTATION AND CARBONATE LEACHING TO CONGO ORES. Topical Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Breymann, J.B. III

1951-10-31

The possibility of separating the U minerals from the carbonate minerals in magnesitic-dolomitic U ores from Union Miniere du Haute Katanga, Belgian Congo, by heavy media separation or froth flotation was investigated. Tables are included which show conditions and reagents. Results of tests of carbonate leaching of the whole ore and of the carbonate fiotation products are also tabulated. (auth)

METABOLISM OF RUTHENIUM IN THE RAT. Technical Documentary Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Traynor, J.E.; Leeper, S.W.

1961-12-01

Seventeen Sprague-Dawley rats were injected intramuscularly and intraperitoneally with ruthenium-106. The amount of this isotope was determined daily for 5 weeks in the urine and feces. Animals were sacrificed at intervals and the various organs were analyzed for ruthenium. It was noted from this experiment that the pathways of absorption, metabolism, and excretion are dependent on the route of administration of ruthenium. (auth)

Responding to Self-Selection Bias in Assessments of Academic Support Programs: A Motivational Control Study of Supplemental Instruction.

ERIC Educational Resources Information Center

Gattis, Kenneth W.

2002-01-01

Argues that a controlled study of Supplemental Instruction (SI) sessions in college chemistry showed that participants benefited from SI sessions to an extent that cannot be explained only by their higher levels of motivation. Reports that SI includes services such as one-on-one, drop-in, and group tutoring. (Contains 11 references.) (AUTH/NB)

Abnormal /sup 67/Ga-citrate scan of the abdomen in tuberculous peritonitis: case report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Steinbach, J.J.

1976-04-01

Tuberculous peritonitis in a 34-year-old alcoholic man was associated with an abnormal /sup 67/Ga-citrate scan of the abdomen. Repeated studies after thorough bowel cleansing revealed no change in the site and shape of the abnormality for 2 to 5 days after injection of the tracer. The inflammatory process may have been responsible for the abnormal scan. (auth)

STUDY ON THE MECHANICAL WORKING CONDITIONS OF NUCLEAR MATERIALS AS RELATED TO ROLLING. Quarterly Report No. 2

DOE Office of Scientific and Technical Information (OSTI.GOV)

Vidal, C.A.M.; Sabato, J.A.

1962-09-01

BS>Descriptions are given of: (a) the design, construction, and adjustment of a Ford plane-strain compression die, to be used in the determination of constrained yield stress curves, and (b) the design and construction of a load cell with strain gages to be used in the measurement of the rolling load during rolling. (auth)

REPORT OF THE QUALIFICATION TESTING OF SNAP 10A FUSISTORS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Holtwick, J.S. III; Nowell, V.P.

1963-07-31

Qualification testing of SNAP 10A fusistors was performed. Test operations included: visual inspection, insulation resistance, dielectric strength, and d-c resistance testing prior to subjecting the fusisters to environmental testing; opening-time testing prior to, during, and following vacuum and temperature testing; and insulation resistance, dielectric strength, and d-c resistance testing following environmental applications of temperature, vacuum, and sinusoidal vibration. (auth)

Production of bismuth-204 for medical use

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kinsley, M.T.; Lebowitz, E.; Baranosky, J.

1973-11-01

A method is described for producing practical quantities of highpuriti, / sup 204/Bi by, the /sup 206/Pb(p,3n)/sup 204/Bi reaction. A simple elec trolytic separation method with good yield has been developed. The cross section for the above reaction was calculated for 32,MeV protons. Decay data for /supb 204/Bi-/ sup 204m/Pb equilibrium samples are also reported. (auth)

THE EFFICACY OF REVACCINATION AGAINST TYPHOID FEVER IN IRRADIATED ANIMALS (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Tumanyan, M.A.; Izvekova, A.V.

1958-01-01

It was shown in the previous work that an exposure to x radiation after immunization considerably decreases the immunity of animals to typhoid fever infection. It is now shown that revaccination carried out in 10 days following irradiation causes pronounced immunity in irradiated white mice, which is not less than the immunity of revaccinated animals not subjected to irradation. Production of immunity in revaccinated animals is due to the changes of immunological reactivity which is preserved in the irradiated organism and appears as a result of primary immunization, carried out before the irradiation. (tr-auth)

ON THE EFFECT OF SMALL DOSE X RADIATION ON SEPTICEMIA CAUSED BY PNEUMONIAE FRIEDLANDER. PART II. THE EFFECT OF SMALL TOTAL DOSE X RADIATION ON A SUBCUTANEOUS INFECTION (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Birkner, R.; Meyer, R.; Trautmann, J.

1957-01-01

ABS>The effect of small doses of whole-body x radiation on the septicemia caused by Klebsiella pneumoniac Friedlander in white mice depends on the moment of the irradiation, the dose, the temporal dose distribution, the age and the sex of the animals, as well as on the quantity of germs applied. Animals die more rapidly if irradiations have been applied previous to the infection, while irradiations after infections lead to longer life. (auth)

THE COURSE OF A SMALLPOX VACCINAL PROCESS AND THE FORMATION OF ANTISMALLPOX IMMUNITY IN RABBITS DUE TO THE EFFECT OF X IRRADIATION (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kamalyan, L.A.

1961-01-01

A study of vaccination process peculiarities in rabbits, previously irradiated with an x-ray dose of 700 r, shows that the course of the process grows worse, the duration of the locai reaction becomes longer, the disease spreads and some of the animals die. A repeated infection of the rabbits (cutaneous and cerebral) shows that the intensity of antismallpox immunity is lower in irradiated animals than in nonirradiated ones in the case of primary and secondary immurization. A total irradiation suppresses the process of hemagglutination. (auth)

REDUCTION OF DOSES IN DIAGNOSTIC USES OF RADIOISOTOPES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hosain, F.

1960-03-01

> A moderately low-level counting technique with anticoincidence gas- flow counter was developed for use in metabolic and diagnostic tracer studies with radioisotopes. Several important experiments and results were reported which have been carried out with reduced doses of tracer isotopes. A reduction of the tracer dose of ahout 1/30th of the present conventional doses was achieved which helps to minimize the chances of radiation hazards. (auth)

HTGR fuels and core development program. Quarterly progress report for the period ending August 31, 1975

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1975-09-30

Studies of reactions between core materials and coolant impurities, basic fission product transport mechanisms, core graphite development and testing, the development and testing of recyclable fuel systems, and physics and fuel management studies are described. Materials studies include irradiation capsule tests of both fuel and graphite. Experimental procedures and results are discussed and, where appropriate, the data are presented in tables, graphs, and photographs. (auth)

CERTAIN PHYSICO-CHEMICAL AND CHEMICAL INDICES OF THE BLOOD IN CHRONIC ACTION OF LOW DOSES OF IONIZING RADIATION (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gorn, L.E.

1960-06-01

Results are reported from a study on 45 persons subjected during work to the protracted action of rontgen and gamma rays in doses exceeding the maximal permissible ones. It was found that the creatine, aromatic amino acids, and non- hemoglobin iron, as well as the redox potential of the serum, do not differ from the respective values in healthy subjects. (auth)

Hybrid Optical Processor

DTIC Science & Technology

1990-08-01

LCTVs) ..................... 17 2.14 JOINT FOURIER TRANSFORM PROCESSOR .................. 18 2.15 HOLOGRAPHIC ASSOCIATIVE MEMORY USING A MICRO ...RADC-TR-90-256 Final Technical Report August1990 AD-A227 163 HYBRID OPTICAL PROCESSOR Dove Electronics, Inc. J.F. Dove, F.T .S. Yu, C. Eldering...ANM SUSUE & FUNDING NUMBERS C - F19628-87-C-0086 HYBRID OPTICAL PROCESSOR PE - 61102F PR - 2305 &AUThNOA TA - J7 J.F. Dove, F.T.S. Yu, C. Eldering WU

THE VALUE OF OVARIAN IRRADIATION IN THE MANAGEMENT OF BREAST CANCER

DOE Office of Scientific and Technical Information (OSTI.GOV)

Cole, M.P.

1962-01-01

A report is given of a clinical trial to assess the value of ovarian radiation (x-ray artificial menopause) for breast cancer. There appeared to be a definite advantage to cases having ovarian irradiation prophylactically as judged on crude survival rate. This improvement was more apparent in the earlier case than the late, with a definite decrease in the incidence of metastases in the treated group at 5 years. (auth)

THE FORMATION OF DETONATION IN SATURATED MIXTURES OF KNALLGAS-STEAM AND IN STOICHIOMETRIC MIXTURES OF DEUTERIUM-OXYGEN (HEAVY WATER). Final Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Luker, J.A.; Adler, L.B.; Hobaica, E.C.

1959-01-23

The purpose of this investigation was to determine the reaction characteristics of satuated mixtures of knall gas (stoichiometric mixture of hydrogen and oxygen) --steam and mixtures of heavy knall gas (stoichm-ometric mixture of deuterion and oxygen) saturated with heavy water. These mixtues were studied experimentally over composition ranges from no reaction limit to enriched compositions which supported detonations. (auth)

Isotopic Exchange of Deuterium Between Hydrogen and Water in Vapor Phase. Report No. 56; INTERCAMBIO ISOTOPICO DE DEUTERIO ENTRE EL HIDROGENO Y EL AGUA EN FASE VAPOR. INFORME NO. 56

DOE Office of Scientific and Technical Information (OSTI.GOV)

Baran, W.J.; Cretella, R.F.

1961-01-01

The design is described of a device for the measurement of catalytic activities of the isotopic exchange reaction, H/sub 2/O (v) + HD in equilibrium HDO (v) + H/sub 2/, and to determine experimentally the kinetics for the interpretation of the results for the optimum conditions for the reaction. (tr- auth)

Residual splenic function in the presence of thorotrast-associated hepatic tumor: case report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Spencer, R.P.; Turner, J.W.; Syed, I.B.

1976-03-01

A 50-year-old man had received intravenous colloidal thorium dioxide (thorotrast) 27 years previously. Scintiscans with both $sup 99$/sup m/Tc-sulfur colloid and $sup 131$I-rose bengal revealed an extensive intrahepatic defect. At operation, the lesion proved to be an infiltrating hemangiosarcoma. The spleen was small but the chronic internal radiation of the spleen had not completely destroyed the function of radiocolloid uptake. Review of the literature disclosed other cases in which th spleen was still capable of accumulating radiocolloid some years after thorotrast administration. In at least one other instance, radiocolloid uptake was not accompanied by splenic ability to clear Howell--Jolly bodies:more » a disassociation of splenic functions. The effects of the internal radiation dose to the spleen from thorotrast are discussed and compared with the effects of external radiation. The discrepancy between the effects of the two doses may be related to the high relative biologic effectiveness of the alpha rays from thorotrast compared with x-radiation, to nonuniformity of distribution, and to the effects of reticuloendothelial blockade. (auth)« less

Ecological notes on Manitoba Napaeozapus insignis

DOE Office of Scientific and Technical Information (OSTI.GOV)

Iverson, S.L.; Turner, B.N.

1973-01-01

As part of a systematic sampling of small mammals within the control area of Whiteshell Nuclear Research Establishment of Atomic Energy of Canada Limited, twenty-six woodland jumping mice (Napaeozapus insignis frutectanus) were captured (1967--71) in a deciduous forest bordering the Winnipeg River and its tributary creeks. Only two specimens of this mammal have been previously reported from Manitoba, and both were from a coniferous forest. The specimens were captured where the dominant vegetation included hazelnut (Corylus cornuta), trembling aspen (Populus tremuloides), ash (Fraxinus nigra and F. pennsylvanica), oak (Quercus macrocarpa) and strawberry (Fragaria virginiana). All were captured on or nearmore » slopes and within 100 m of permanent flowing water. Males apparently emerge from hibernation in late May and are in reproductive condition, whereas females do not emerge until early June. There was no evidence of more than one litter per year, and young did not reproduce in their year of birth. Adults stored fat in August or early September. The species has a restricted distribution in this area, and apparently occurs in isolated groups. (auth)« less

THE REDUCTION OF CYTHOCHROME C BY FREE RADICALS PRODUCED BY GAMMA RAYS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Munk, S.; Stein, G.

In previous papers it had been shown that when oxygen-free aqueous solutions (10/sup -5/ M) of suitable acceptors such as methylene blue, coenzyme I, or cytochrome-C are irradiated in the presence of a large excess (1 M) of organic compounds complete reduction of the substrate can be obtained in high yield. Results are reported from an investigation of the quantitative aspects of the reduction of cytochrome-c in the presence of suitable organic substances, malate, lactate, betahydroxybutyrate, ethanol, succinate, glutamate, and alpha- glycerophosphate, as well as in the presence of molecular hydrogen. It was possible to show that the free radicalsmore » derived from organic compounds act as reducing agents on the cytochrome-c, and that the Gvalues of reduction obtained, the extent of the denaturation of cytochrome-c and the formation of new products from cytochrome-c depend on the nature of the organic substance added. Differences can be correlated with the structure of the organic molecule and the free radical derived from it in a specific manner. (auth)« less

78 FR 77144 - Announcement of Funding Awards for Fiscal Year 2013 for the Housing Choice Voucher Program

Federal Register 2010, 2011, 2012, 2013, 2014

2013-12-20

..., HOPEWELL, VA 23860. VA: VIRGINIA HSG REDEV AUTH.. 601 SOUTH 0 9,400 BELVIDERE ST, RICHMOND, VA 23220. VT...: HENDERSON HA 111 SOUTH ADAMS 0 17,800 ST, HENDERSON, KY 42420. KY: CYNTHIANA HA 149 FEDERAL ST, 0 4,200... 20895. MI: MICHIGAN STATE HSG DEV PO BOX 30044, 0 84,800 AUTH. LANSING, MI 48909. MN: VIRGINIA HRA PO...

SCATTERING OF NEUTRONS BY $alpha$-PARTICLES AT 14.1 Mev

DOE Office of Scientific and Technical Information (OSTI.GOV)

Fasoli, U.; Zago, G.

1963-12-01

The angular distribution of 14.1-Mev neutrons elastically scattered by alpha particles was measured by observing the alpha recoils in a helium-filled cloud chamber. The results are in satisfactory agreement with those previously obtained by others. Inspection of the small-angle region of the measured distribution shows that phase shifts of orbital angular momentum higher than L = 1 are not negligible, although, according to the present experiment, quantitative information on D-waves turns out to be somewhat elusive. The azimuthal angular distribution agrees well with the value P = 0.02 of the neutron beam polarization, as measured by Perkins. (auth)

RADIATION-INDUCED MUTATIONS FOR STEM RUST RESISTANCE IN OATS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Konzak, C.F.

1959-01-01

Stem rust rcsistant viriants from earlier experiments on the induction or resistance in oats by radiation were found to result from natural field hybridization. Recent controlled experiments did, however, yield new variants at a low frequency in one instance. and no variants in another. Both experiments included over 3,000 lines from irradiated seeds. One previously unknown type of rust resistance reaction was obtained in a mutant plant. This mutant shows a temperature sensitive response for resistance to race 7A of Puccinia graminis avenae. It was suggested that some, as yet unknown, mcdifying factors mav limit the development of induced changesmore » into mutations. (auth)« less

ON ABSORPTION OF DYSENTERY ENDOTOXINS IN RADIATION SICKNESS OF RABBITS (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Tumanyan, M.A.; Sosnovskaya, F.M.

1958-03-01

It was demonstrated in previous work with labeled atoms that dysentery endotoxins are absorbed from intestines into the blood stream when lntroduced to rabbits per os. They are revealed in the blood within half an hour after administration. When rabbits were irradiated by LD 50, the intensity of absorption of dysentery endotoxin was changed. It increased during the first 24 hours after irradiation, then this process normalized for a short time. Next it was replaced by a stable increase of absorption which began at the end of the first week and continued for 3 to 4 weeks after irradiation. (tr-auth)

SIDE-EFFECTS OF COMBINED RADIATION AND CHEMOTHERAPY IN THE TREATMENT OF MALIGNANT TUMORS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ottoman, R.E.; Langdon, E.A.; Rochlin, D.B.

1963-12-01

A study was made of the effects of 5-fluorouracil (FU) and x irradiation, separately and in combination, upon multiple metastatic tumors within individual patients. Fourteen cases satisfied the criteria for a controlled study. In 4, the effects of irradiation alone were greater than the combination, in 4 the effects were equal, and in 6 the effects of irradiation were less than those of combination therapy. This study failed to demonstrate a significant alteration in the tumor response by the addition of FU to x irradiation. Four instances of unusual reactions in previously irradiated skin were noted following FU administration. (auth)

Radiation induced abnormalities in early in vitro mouse embryos

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kirkpatrick, J.F.

1973-08-01

Female mice were superovulated and mated, and the two-cell embryos were collected and cultured in vitro. The embryos were exposed to x-irradiation (0 to 491 rads) during the two-cell stage before the appearance of the next cleavage plate, placed in new unirradiated culture medium and observed during subsequent development. Morphological abnormalities, which occurred as a result of irradiation, included fragmentation, disintegration, granlation, incomplete cleavage, cleavage cessation, nuclear degeneration and pycnosis and cytoplasmic vacuolization. There was no damage to the zona pellucida. The types of abnormalities indicate an agreement with the results of previous in vivo studies. A distinct correlation existedmore » between morphological abnormalities and embryo death. The greatest number of abnormalities resulted within five hours following irradiation, but increased through 20 hours post-exposure. At doses above 300 rads, the magnitude of damage was greater in the in vitro embryos than that shown in previous in vivo studies. (auth)« less

LINER FOR EXTRUSION BILLET CONTAINERS. Interim Technical Documentary Progress Report, June 5, 1962-September 5, 1962

DOE Office of Scientific and Technical Information (OSTI.GOV)

Spachner, S.A.

1962-10-31

A container-sleeve-liner assembly was designed which will provide adequate support for ceramic, ceramic coated metal, or metal liners. The design minimizes mechanical property requirements of liner materials, and permits rapid removal of worn or damaged liners. A high-strength stem was designed and fabricated. Technical literature on high-strength materials was reviewed, and high-strength materials producers were contacted to locate sources and assess applicability of existing materials for refractory metal extrusion liner use. (auth)

Direct Current Amplifier. Report No. 92; AMPLIFICADOR DE CORRIENTE CONTINUA. Informe No. 92

DOE Office of Scientific and Technical Information (OSTI.GOV)

Marazzi, C.

1963-01-01

A direct-current amplifier with low zero current and solid-state chopper for input is described. This amplifier can be used in control circuits and for general applications such as temperature measurement in thermocouples, amplifier for a photo-sensitive element, or zero amplifier in control systems. The input impedance is relatively low, serving principally as current amplifier. It is possible to obtain a symmetry characteristic for positive and negative values of the output voltage with respect to the input. (tr-auth)

ION EXCHANGE TESTS ON LIQUOR AND PULPS PRODUCED FROM UTEX ORES. Topical Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hollis, E.T.; Pickwick, F.J. Jr.; Kazanjian, A.R.

1954-07-30

Uranium leach liquors produced from Utex ore by cold leaching, hot leaching, and pugging proved amenable to the lon exchange process, Higher resin loadings were obtained rom the cold leach liquors than from the hot leach and pug liquors. In general, the less vigorous leaching conditions produced liquors which gave the highest resin loadings. In addition, a resin-in-pulp system was operated using the lucite Winchester cells on Utex pulp produced by cold leaching. Satisfactory loadings were obtained. (auth)

MEMORY SYSTEMS STUDY. Annual Report No. 2, November 16, 1962 to November 15, 1963

DOE Office of Scientific and Technical Information (OSTI.GOV)

Peterson, G R; DeVries, R C; Melsa, J L

1964-10-31

S>Results of theoretical studies of learning control systems are presented. The need for definitions is discussed and definitions of successful, adaptive, and learning control systems are presented. The basic structural elements of learning control systems are discussed. The environmental characteristics of control situations in which learning may be applicable are discussed. Learning control systems are classified in accordance with the environmental situation in which they might operate. The structure and components suitable to various environmental situations are discussed. (auth)

Comprehensive report of the work done under contract AT(40-1)-3329 during the years 1970--1973

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bernheim, F.; Ottolenghi, A.

1973-11-01

During the past three years of the project the principal aims of the effort have been: (1) to establish the quantitative relationship between eosinophilic leukocytes and phospholipase B in all major areas of distribution of these cells; and (2) to develop procedures and approaches for studying the kinetics and regulatory mechanisms of the peripheral eosinophilic population. Both objectives have been accomplished and a number of related and new aspects of the problem have been brought to light. (auth)

/cap beta/$sup +$ RADIATION OF Pr$sup 140$. Report No. 148/I-A; Widmo Pozytonow Pr$sup 14$$sup 0$

DOE Office of Scientific and Technical Information (OSTI.GOV)

Chojnacki, S.; Kopystynski, J.; Preibisz, Z.

1960-04-01

The positon spectrum of Pr/sup 140/ was investigated with a long lens magnetic beta -ray spectrometer. The helical baffles were applied to separate the positons and electrons. The maximum energies of three beta /sup +/ components are 2366 plus or minus 12, 770 plus or minus 12, and 458 plus or minus 15 kev and their relative intensities: 1; <1.4 x 10/sup -2/; and 7.2 x 10/ sup -6/. (auth)

THE PSYCHROMETER, MODEL II

DOE Office of Scientific and Technical Information (OSTI.GOV)

Poore, J.I.

1963-09-01

The psychrometer measures percentage of relative humidity and temperature. The relative humidity can be measured to an accuracy better than 1 per cent over the range from 5 to 98 percent in a temperature range of 35 deg F through 140 deg F. A test report on this psychrometer by the National Bureau of Standards is given. The psychrometer will measure temperature with an accuracy within 0.05 deg F over the range 32 deg F through 212 deg F. The operation theory, general description, and operating procedures are included. (auth)

Comparison of human chorionic somatomammotropin (HCS) standards for radioimmunoassay

DOE Office of Scientific and Technical Information (OSTI.GOV)

Cocola, F.; Genazzani, A.R.; Neri, P.

1973-01-01

A comparison was made between four commercially available HCS standards for radioimmunoassay, an interim standard from the Division of Biological Standards of the Medical Research Council. and a new preparation from our laboratories. Many differences are found between the various HCS preparations tested, and this may be one reason for the discrepancies found in absolute HCS plasma levels reported by different authors. The new Sclavo preparation seems to be the best, and its use is proposed as a new standard for radioimmunoassay. (auth)

UNUSUAL BONE TUMORS AFTER ROENTGEN THERAPY OF CHILDREN. Two Case Reports

DOE Office of Scientific and Technical Information (OSTI.GOV)

Cohen, J.; D'Angio, G.J.

1961-09-01

In a selected series of 207 children who received x-ray therapy with 1000 r or more delivered to bone, 2 subsequently developed neoplasms of bone. Both bone tumors occurred in normal ribs included in the field of treatment. The tumors were atypical; one resembled a chondrosarcoma, the other an osteoblastoma. The latent periods were thirteen and two years, respectively. Both children had postirradiation scoliosis and hypoplasia of the ilium. One also developed an osteochondroma of the ilium. (auth)

Using a Personal Device to Strengthen Password Authentication from an Untrusted Computer

NASA Astrophysics Data System (ADS)

Mannan, Mohammad; van Oorschot, P. C.

Keylogging and phishing attacks can extract user identity and sensitive account information for unauthorized access to users' financial accounts. Most existing or proposed solutions are vulnerable to session hijacking attacks. We propose a simple approach to counter these attacks, which cryptographically separates a user's long-term secret input from (typically untrusted) client PCs; a client PC performs most computations but has access only to temporary secrets. The user's long-term secret (typically short and low-entropy) is input through an independent personal trusted device such as a cellphone. The personal device provides a user's long-term secrets to a client PC only after encrypting the secrets using a pre-installed, "correct" public key of a remote service (the intended recipient of the secrets). The proposed protocol (MP-Auth) realizes such an approach, and is intended to safeguard passwords from keyloggers, other malware (including rootkits), phishing attacks and pharming, as well as to provide transaction security to foil session hijacking. We report on a prototype implementation of MP-Auth, and provide a comparison of web authentication techniques that use an additional factor of authentication (e.g. a cellphone, PDA or hardware token).

MECHANICAL PROPERTIES OF IRRADIATED STAINLESS STEELS. A Compilation of Data in the Literature

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schreiber, R.E.

1961-09-01

Changes in the mechanical properties of stainless steels that are caused by fast neutron irradiation are presented aphic form. These data were abstracted from classified and unclassified reports published since 1948 by USAEC, AECL, and AERE. Data are included for the following stainless steels: AM- 350, Boron stainless, 301, 302, 43l, 440C, 442, 446, Armco 17-4PH (AMS5643), Armco 177PH, and Stainless W. The mechanical properties for which data are reported include hardness, yield strength, tensile strength, total elongation, reduction of area, elastic modulus, fatigue strength, notch factor, creep, stress relaxation, impact energy, and transition temperature. (auth)

Additional adjoint Monte Carlo studies of the shielding of concrete structures against initial gamma radiation. Final report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Beer, M.; Cohen, M.O.

1975-02-01

The adjoint Monte Carlo method previously developed by MAGI has been applied to the calculation of initial radiation dose due to air secondary gamma rays and fission product gamma rays at detector points within buildings for a wide variety of problems. These provide an in-depth survey of structure shielding effects as well as many new benchmark problems for matching by simplified models. Specifically, elevated ring source results were obtained in the following areas: doses at on-and off-centerline detectors in four concrete blockhouse structures; doses at detector positions along the centerline of a high-rise structure without walls; dose mapping at basementmore » detector positions in the high-rise structure; doses at detector points within a complex concrete structure containing exterior windows and walls and interior partitions; modeling of the complex structure by replacing interior partitions by additional material at exterior walls; effects of elevation angle changes; effects on the dose of changes in fission product ambient spectra; and modeling of mutual shielding due to external structures. In addition, point source results yielding dose extremes about the ring source average were obtained. (auth)« less

Relation of the Yield of the Isomeric Pair Te$sup 121$m, Te$sup 121$, Formed in the Nuclear Reaction, Sb$sup 121$(d,2n)Te$sup 121$. Report No. 61; RELACION DE LOS RENDIMENTOS DEL PAR ISOMERICO Te$sup 121$m, Te$sup 121$, FORMADO EN LA REACCION NUCLEAR Sb$sup 121$(d,2N)Te$sup 121$. INFORME NO. 61

DOE Office of Scientific and Technical Information (OSTI.GOV)

Nassiff, S.J.; Abecasis, S.; Mocoroa, A.

1961-01-01

The effective cross sections of the isomeric pair, tellurium-121m- tellurium-121 in the reaction antimony121(d,2n)tellurium-121 were determined experimentally for deuteron energies from 9 to 28 Mev. (tr-auth)

DETERMINATION OF THE FEASIBILITY OF PRODUCING NON-STALING BREAD-LIKE PRODUCTS. Report No. 6 (Progress) for the Period March 15, 1959-May 15, 1959

DOE Office of Scientific and Technical Information (OSTI.GOV)

Johnson, J.A.; Miller, D.

Fatty acids, including myristic, palmitic, and oleic acids, used in concentrations of 1% caused the bread stored for 4 days to be softer than untreated bread. Superimposing bacterial alpha-amylase also assisted in maintaining softer crumb. Fatty acids have little effect on the hot paste viscosity but do affect the cooling cycle viscosity. Modified starches have not proven satisfactory for use in bread production. Irradiation of the starch with gamma rays reduced the baking value. (auth)

THE ARMOUR DUST FUELED REACTOR (ADFR). Quarterly Progress Report No. 1 for the Period February 21, 1958 to May 21, 1958

DOE Office of Scientific and Technical Information (OSTI.GOV)

Loewe, W.E.; Krucoff, D.

1958-10-31

Work has begun on the ADFR, a reactor using a new fuel form -- fissionable dust carried in an inent gas. Temperatures in the range 2,000 to 3,000 deg F appear feasible in an all-ceramic system. Experimental study of the fuel form was initiated, and a loop to circulate the fuel dust was constructed. Initial operation is encouraging. Theoretical studies were carried on in the areas of reactor physics, heat transfer, and safety. (auth)

Inclusions and Substructures in Uranium of Nuclear Purity. Report No. 51; INCLUSIONES Y SUBESTRUCTURAS EN URANIO DE PUREZA NUCLEAR. INFORME NO. 51

DOE Office of Scientific and Technical Information (OSTI.GOV)

Biloni, H.; Lindenvald, N.; Sabato, J.A.

1961-01-01

The inclusions in uranium of nuclear purity (UC, UH/sub 3/, UO/sub 2/, UO, UN, and the complexes which include the intersolubility of U with C and N or with C, N, and O) were . analyzed metallographically, and the results reported by other authors were discussed critically. The existence of the fine precipitate reticular substructure, sensitive to thermal treatments, which generally appears in uraniunn was analyzed. Its origins were discussed in accordance with bibliographic data. Complementary data for its comprehension are given from the metallographic analysis of U--Al and U-- Fe alloys with low Al and Fe concentrations. (tr-auth)

Measurement of the Neutron Flux of the Reaction C$sup 12$(d,n)N$sup 13$ Based on the Activity of N$sup 13$. Report No. 28; MEDICION DEL FLUJO NEUTRONICO DE LA REACCION C$sup 12$(d,n)N$sup 13$ A BASE DE LA ACTIVIDAD DEL N$sup 13$. INFORME NO 28

DOE Office of Scientific and Technical Information (OSTI.GOV)

Keller, A.

1960-08-01

The principal problem in the measurement of neutron flux from the reaction C/sup 12/(d,n)N/sup 13/, based on the activity of N/sup 13/, is the possibility of nitrogen escape. A method for the measurement of possibie N/sup 13/ losses is described, and measurements with TiC targets irradiated with 600- kev deuterons are reported. The formulas for the calculation of the neutron flux are indicated. (tr-auth)

A RADIOBIOLOGICAL ANALOGY BETWEEN MEASLES VIRUS AND TEMPERATE PHAGES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ackerman, P.H.; Black, F.L.

1961-02-01

Measles virus was found to be more resistant to ultraviolet (uv) than to ionizing radiations. The capacity of monkey kidney cells to grow unirradiated measles virus or measles virus irradiated with gamma rays was not affected appreciably by uv irradiation of the cells. However, the capacity of cells to grow uv irradiated virus was reduced by uv irradiation of the cells. In contrast, uv irradiation of cells did not affect their capacity to grow uv- treated polio virus. These effects of radiation on the measles virus system are analogous to effects on the phage P22 system and are compatible withmore » the hypothesis of cellular repair of damaged virus previously suggested for the temperate phage. (auth)« less

Isotopic Analysis Using Optical Spectroscopy; ANALYSE ISOTOPIQUE PAR SPECTROSCOPIE OPTIQUE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gerstenkorn, S.

1963-01-01

The isotopic displacement in the atomic lines of certain elements (H, He, Li, Ne, Sr, Hg, Pb, U, Pu) is used for dosing these elements isotopically. The use of the FabryPerot photo-electric interference spectrometer is shown to be particularly adapted for this sort of problem: in each case the essential results obtained with this apparatus, and the results previously obtained with a conventional apparatus (grating, photographic plate) are given. These results together give an idea of the possibilities of optical spectroscopy: in the best case, the precision which may be expected is of the order of 1 to 2 permore » cent for isotopes whose concentration is ahout l per cent. (auth)« less

RESISTANCE AND CROSS-RESISTANCE OF ESCHERICHIA COLI S MUTANTS TO THE RADIOMIMETIC AGENT PROFLAVINE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Woody-Karrer, P.; Greenberg, J.

1964-03-01

All 50 of the first-step mutants of Escherichia coli S selected for resistance to proflavine were resistant to uv light and each of five different radiomimetic chemicals. The mutants were classified into eight types on the basis of their relative resistance to six different radiomimetic drugs and on the basis of the shape of their uv survival curves. Three of these types are identical to types previously isolated with other radiomimetic drugs; five of the types are new. A high proportion of the clones surviving proflavine treatment were phenotypically but not genetically resistant, and no strains were isolated which weremore » resistant to proflavine but were not resistant to radiation. (auth)« less

Vibrational spectra and structure of some penicillin derivatives. Part III. Amphicillin and carboxybenzylpenicillin

DOE Office of Scientific and Technical Information (OSTI.GOV)

Dziegielewski, J.; Hanuza, J.; Jezowska-Trzebiatowska, B.

IR spectra of sodium salts and acids of amphicillin and carboxybenzlpenicillin were investigated in the solid state over the 100-200 cm/ sup -1/ region. Interpretation of the spectra and band assignments was made on the basis of both frequency shifts caused by deuteration and the information on penicillin-like antibiotics from previous studies. The molecular configuration of such a type of antibiotics was suggested, based on the position of characteristic amide and carbonyl bands. Lactam-thiazolidine skeleton vibrations are identified and located. The information obtained will be used in studies on ir spectra of the gamma radiolysis products resulting from lactam-thiazolidine antibioticsmore » to define the radiolysis products and the mechanism of decomposition. (auth)« less

A STUDY OF THE RADIATION-INDUCED SOFTENING OF PLANT TISSUES. Report No. 7 (Progress) for Period July 1, 1959-September 30, 1959

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kertesz, Z.I.

1961-10-31

Studies of the effect of gamma irradiation on four varieties of sweet cherries indicate an average radiation-induced softening threshold dosage of about 53 x lO/sup 3/ rad and about a 30% softening at the recommended 232 x lO/ sup 3/ rad "pasteurization dosage." No detrimental flavor or color changes and only slight and transient respiratory abnormalities were found. (auth) l667 At 75/sup o/F there was no eradication or arrestment of all fungi within fresh Michigan blueberries at any of the doses tested between 0.5 to 5 x 10/sup 5/ rads. After 28 days storage, all berries showed fungal growth inmore » nearly equal amounts to the non-irradiated controls regardless of the dose applied. When stored at 75/ sup o/F injury to the berries in the form of softening and produciion of abnormal red color in the flesh occurred at 5 x lO/sup 5/ and 3 x l0/sup 5/ rads after 16 days and only slightly at 2.5 x lO/sup 5/ rads after 28 days. In vitro inactivation of some blueberry decay pathogens was well below 5 x lO/sup 5/ rads. (auth)« less

ELECTRON IONIZATION FREQUENCY IN HYDROGEN

DOE Office of Scientific and Technical Information (OSTI.GOV)

Cottingham, W.B.; Buchsbaum, S.J.

1963-05-01

The frequency of ionization by electrons in hydrogen was measured during pulsed microwave breakdown in a waveguide. Optical radiation emanating from the plasma was used to determine the temporal rate of growth of electron density. Values of the ionization frequency are presented as a function of E/sub e//p/sub o/ for 36 < E/sub e//p/sub o/ < 200 v/cm-mm Hg. The measurements constitute an extension of the work of Madan, Gordon, Buchsbaum, and Brown who measured this coefficient up to an E/sub e//p/sub o/ of 40 v/cm-mm Hg by microwave cavity techniques. Comparison is made with previous d-c measurements of Rosemore » and with the theory of Allis and Brown. Good agreement is obtained with the measurements of Rose but not with the theory of Allis and Brown extended to high E/sub e//p/ sub o/, nor with the previous microwave measurements of Madan et al. (auth)« less

Globus Identity, Access, and Data Management: Platform Services for Collaborative Science

NASA Astrophysics Data System (ADS)

Ananthakrishnan, R.; Foster, I.; Wagner, R.

2016-12-01

Globus is software-as-a-service for research data management, developed at, and operated by, the University of Chicago. Globus, accessible at www.globus.org, provides high speed, secure file transfer; file sharing directly from existing storage systems; and data publication to institutional repositories. 40,000 registered users have used Globus to transfer tens of billions of files totaling hundreds of petabytes between more than 10,000 storage systems within campuses and national laboratories in the US and internationally. Web, command line, and REST interfaces support both interactive use and integration into applications and infrastructures. An important component of the Globus system is its foundational identity and access management (IAM) platform service, Globus Auth. Both Globus research data management and other applications use Globus Auth for brokering authentication and authorization interactions between end-users, identity providers, resource servers (services), and a range of clients, including web, mobile, and desktop applications, and other services. Compliant with important standards such as OAuth, OpenID, and SAML, Globus Auth provides mechanisms required for an extensible, integrated ecosystem of services and clients for the research and education community. It underpins projects such as the US National Science Foundation's XSEDE system, NCAR's Research Data Archive, and the DOE Systems Biology Knowledge Base. Current work is extending Globus services to be compliant with FEDRAMP standards for security assessment, authorization, and monitoring for cloud services. We will present Globus IAM solutions and give examples of Globus use in various projects for federated access to resources. We will also describe how Globus Auth and Globus research data management capabilities enable rapid development and low-cost operations of secure data sharing platforms that leverage Globus services and integrate them with local policy and security.

UTEX LEACHING, THICKENING AND FILTRATION TESTS. Topical Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Stanley, A.; George, D.R.; Thomas, P.N.

1954-03-15

A series of leaching, thickening, and filtration tests was undertaken to determine minimum conditions for high uranium extractions and obtain thickening and filtration data. The ore represented by the sample responded to cold and hot leaching with the minimum condition for uranium extraction being 500 pounds of H/ sub 2/SO/sub 4/ per ton and five pounds NaClO/sub 3/ per ton leached at room temperature for l6 hours with uranium extraction of over 95%. Thickening and filtration were economical if a reagent such as S-3000 or Guar gum was used. (auth)

New data on the use of dimethyl sulfoxide in experimental and clinical dermatology. Survey of the literature (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Datskovskii, B.M.; Zaks, A.S.; Mitryukovskii, L.S.

1973-01-01

A review of 241 reports published in recent years dealing with various aspects of the effect of dimethylsulphoxide (DMSO) on the skin is presented. Properties of DMSO such as penetrability, transporting capacity, and radioprotective effect are discussed as well as the prospects of the use of the drug in experimental oncology and allergology (in dermatological aspect). Materials on the effect of DMSO on the skin and the results of its use in clinical practice for treatment of sclerodermia, psoriasis, eczema, mycoses, and other diseases are presented. (auth)

COMPARTMENTALIZED PHANTOMS FOR THE STANDARD MAN, ADOLESCENT AND CHILD

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hayes, R.L.; Brucer, M.

A compartmentalized phantom for the standard man was designed and built of readily available and inexpensive materials. Similar phantoms were also designed for an adolescent and a child. The basic emphasis in the designs is on general utility so that a variety of different dosemeasurement techniques could be used on the same phantom. The designs are, however, in reasonable agreement with authropometric data reported in the literature. The phantoms proved to be extremely useful in depth-dose and energy-absorption measurements for total-body irradiation therapy. Dose measurements with beam teletherapy, brachytherapy devices, and internally distributed radioisotopes were also made. (auth)

Specificity of /sup 99m/Tc-pertechnetate in scintigraphic diagnosis of Meckel's diverticulum: review of 100 cases

DOE Office of Scientific and Technical Information (OSTI.GOV)

Berquist, T.H.; Nolan, N.G.; Stephens, D.H.

1976-06-01

Numerous reports in the recent literature have questioned the value of abdominal scanning with pertechnetate in the diagnosis of Meckel's diverticulum. In an attempt to evaluate further the specificity of pertechnetate in this condition, the clinical data and scintigrams of 100 patients with suspected Meckel's diverticulum were reviewed. The scintigram correctly identified Meckel's diverticulum before operation in seven of eight patients. One false-negative study occurred in 33 patients who underwent laparotomy. Conditions suggested as possible causes of false-positive studies (hydronephrosis, arteriovenous malformations, and intussusception) were found to give negative scans. (auth)

Chlamydia trahomatis in cell culture. I. Comparison of efficiencies of infection in several chemically defined media, at various pH and temperature values, and after exposure to diethylaminoethyl-dextran

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rota, T.R.; Nichols, R.L.

1973-10-01

Three chemically defined cell culture media, Eagle minimum essential medium (MEM) with Earle basal salt solution, Eagle MEM with Hanks basal salt solution, and a modified Eagle MEM, were tested and found capable of supporting the development of Chlamydia trachomatis in /sup 60/Co-treated McCoy cells. The enhancement of trachoma infection by diethylaminoethyl-dextran (DEAE-D) was greater at pH values closer to neutrality than at and other pH values measured at the start of the experiments. Centrifugation of the trachoma inoculum onto cell monolayers at 33 C increased the number of inclusions when compared to centrifugation at 20 C. When the inoculummore » was centrifuged onto cell monolayers and subsequent incubation was at temperatures ranging from 34 to 39 C, the greatest number of inclusions was observed after incubation from 35 through 37 C. Enhancement of the trachoma infection by DEAE-D was tested at temperatures ranging from 35 to 37 C. These cultures had three- to fivefold increases in inclusions when compared to previously reported experiments in which DEAE-D- treated cultures were incubated at 34 C. (auth)« less

The impact of JP-4/JP-8 conversion on aircraft engine exhaust emissions. Interim technical report Jul 75--Feb 76

DOE Office of Scientific and Technical Information (OSTI.GOV)

Blazowski, W.S.

1976-05-01

The proposed conversion of predominant Air Force fuel usage from JP-4 to JP-8 has created the need to examine the dependence of engine pollutant emission on fuel type. Available data concerning the effect of fuel type on emissions has been reviewed. T56 single combustor testing has been undertaken to determine JP-4/JP-8 emission variations over a wide range of simulated engine cycle operating conditions at idle. In addition, a J85-5 engine was tested using JP-4 and JP-8. Results of the previous and new data collectively led to the following conclusions regarding conversion to JP-8: (a) HC and CO emission changes willmore » depend upon individual combustor design features, (b) no change to NOx emission will occur, and (c) an increase in smoke/particulate emissions will result. It is recommended that these findings be incorporated into air quality analytical models to define the overall impact of the proposed conversion. Further, it is recommended that combustor analytical models be employed to attempt prediction of the results described herein. Should these models be successful, analytical prediction of JP-8 emissions from other Air Force engine models may be substituted for more combustor rig or engine testing. (auth)« less

NEUTRON CAPTURE THERAPY OF A CEREBELLAR HEMANGIOSARCOMA AFTER SURGICAL AND RADIATION TREATMENT

DOE Office of Scientific and Technical Information (OSTI.GOV)

Farr, L.E.; Yamamoto, L.Y.

1961-10-01

A patient with a hioghly maliognant vascular sarcoma of the cerebellum was treated hv neutron capture therapy. Almost complete elimination of the neoplasm was attained. Other than the skin, normal tissues about and within the neoplastioc mass did not appear to be adversely affected. An unusual and unexpected bulbar conjunctivitis was observed as a complication. The degree of control attained by this experimental procedure was more positive than that previously attained by surgery or conventional x-ray therapy. This is the first attempt to control an intracranial tumor other than glioblastoma multiforme by this procedure. The patient is noteworthy for themore » extreme retention of carbon dioxiode, 60 milli-equivalents per liter in the blood, apparently resulting from functional disturbances of the respiratory center. (auth)« less

Slopes of $pi$-meson spectra in the K $Yields$ 3$pi$ decays (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kapustnikov, A.A.

1973-12-01

The strong violation ( approximates 35%) of the rule DELTA T = 1/2 on the Dalitz piot for the K yields 3 pi decays is considered in the framework of the nonlinear realization of the chiral SU(2) x SU(2) symmetry. The Lagrangian without derivatives obtained previously is used to describe the contact weak K pi interaction. It is postulated that the enhancement of effects related to the electromagnetic mass differences of pi and K mesons in the K yields 3 pi amplitudes is due to the PCAC modification: partial delta A = constant pi (1 - 2 alpha lambda /supmore » 2/ KK). At alpha = 0.8 the predictions of the model are shown to coincide with the experiment. (auth)« less

Progress report Waste Resources Utilization Program period ending March 31, 1976. [Radiosterilization of sewage sludge for safe application as fertilizer or animal feed

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

1976-06-01

This report describes the work on the Waste Resources Utilization Program for the quarter ending March 31, 1976. The purpose of this program is to develop technologies to utilize a /sup 137/Cs ..gamma.. source to modify sewage sludge for safe application as a fertilizer or an animal feed supplement. Results are reported from studies in microbiology, virology, and physical-chemical studies. Determinations were made of inactivation rates for Salmonella species, coliforms, and fecal strep in sewage sludge when radiation and thermoradiation were applied while bubbling oxygen through the sludge. Virology studies were continued investigating virucidal characteristics of anaerobically digested sludge. Anothermore » area of study was the dewatering of sewage sludge to reduce the drying time of the sewage sludge in the drying beds. A centrifuge was also installed to dewater treated sludge to approximately 30 percent solids. (auth)« less

DOE Office of Scientific and Technical Information (OSTI.GOV)

none,

Results of a survey covering the safety, adequacy, and reliability of certain design and construction features pertaining to the NS Savannah nuclear power plant and related systems are presented. (auth)

DEVELOPMENT OF IMPROVED FABRICATION METHODS, PROCESS AND TECHNIQUES FOR PRODUCING TYPICAL AIRCRAFT SHAPES FROM BERYLLIUM. Interim Technical Documentary Progress Report for the Period ending October 31, 1962

DOE Office of Scientific and Technical Information (OSTI.GOV)

Jenkins, R.G.; Siergiej, J.M.

1962-12-28

In a program to develop a complete manufacturing process for ihe production of beryllium channels, techniques are being sought for drawing to obtain a flnal product meeting specifications more rigorous than are obtainable by direct extrusion. Progress in designing and procuring the special tooling required to draw complex shapes at elevated temperature is described, and the flrst set of draw dies is evaluated with respect to design and quality. Three experimental draw attempts have been made on U-channels, in addition to draw tests on flats. (auth)

IMPREGNATION OF GRAPHITE SPECIMENS USING THE FURFURYL ALCOHOL IMPREGNATION PROCESS. Project DRAGON

DOE Office of Scientific and Technical Information (OSTI.GOV)

Martina, R.A.; Vohler, O.J.

1964-11-15

This report gives the results of the furfuryl alcohol impregnation treatment of graphite fuel rods and end plugs done by Sigri Kohlefabrikate GmbH, Meitingen, from May 1962 till April 1964. By impregnating the components two and three times, resp. the permeability was decreased, starting from a coefficient of about 5 x 10{sup -2}cm{sup 2}sec{sup -1}, to a value of 10{sup -6} - 10{sup -7}cm{sup 2}sec{sup -1}. The rejects as occured with the first batches were finally diminished to a negligible amount by studying the single steps of treatment. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Aita, J.F.; Keyes, J.W. Jr.

Two cases of acute infantile hemiplegia are presented. The first case is a patient with moyamoya disease with excellent correlation between the brain scan findings and her clinical signs and symptoms and the carotid arteriogram. The second patient had occlusive cerebrovascular disease secondary to thromboemboli with excellent correlation between the brain scan findings and his clinical state and the neuropathologic examination. In both cases the static brain scans and the radionuclide angiogram were comparable to those reported in adults with cerebrovascular disease both in appearance and in temporal sequence. Radionuclide studies can be an important and reliable diagnostic tool inmore » the evaluation of acute infantile hemiplegia. (auth)« less

RADIATION EFFECTS ON IMMUNE MECHANISMS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Stoner, R.D.; Hale, W.M.

1963-03-01

Experiments were performed on pathogen-free Swiss albino mice to determine the repressive effect of ionizing radiation on immune mechanisms. In animals given sublethal doses of Co/sup 60/ gamma radiation by acute short-term exposure or by chronic long-term exposure at a low dose rate, ability to produce antibody was inhibited or abolished, and natural resistance and active and passive immunity to pneumococcal and Trichinella infections were severely depressed. It appears that the repression resulted from damage to the cellular defensive mechanisms of the host. Active immunity and natural resistance to influenza virus infections were not altered significantly by radiation. Exposure tomore » radiation enhanced the severity of anaphylactic shock markedly in mice previously sensitized to tetanus toxoid and challenged with tetanus toxoid after radiation. Chronic exposure to radiation caused immediate increased sensitivity to fatal anaphylaxis. (auth)« less

Excision of thymine dimers in vitro by extracts of bacteriophage-infected Escherichia coli

DOE Office of Scientific and Technical Information (OSTI.GOV)

Friedberg, E.C.; Minton, K.; Pawl, G.

1974-05-01

Extracts of DNA polymerase I defective Escherichia coli infected with phage T4 contain an exonuclease activity that removes thymine dimers from uv- irradiated DNA previously nicked with T4 uv endonuclease. This activity is not expressed if cells are infected in the presence of chloramphenicol. The enzyme has a requirement for divalent cation and is not affected by caffeine, but excision is inhibited in the presence of proflavine. The enzyme is present in all phage T4 mutants thus far examined, including 25 uv-sensitive mutants isolated during the course of the experiments, all of which are defective in the v gene. Amore » similar activity can be detected in cells infected with phages T2, T3, and T6, but not in cells infected with phage T7. (auth)« less

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hznnera, K.; Hetzler, F.; Hyden, L.

From international nuclear industries fair; Basel, Switzerland (16 Oct 1972). Some features of ASEA-ATOM's BWR fuel design and fabrication processes are given. The in pile fuel performance experience to date is reviewed. (auth)

Energy resource alternatives competition. Progress report for the period February 1, 1975--December 31, 1975. [Space heating and cooling, hot water, and electricity for homes, farms, and light industry

DOE Office of Scientific and Technical Information (OSTI.GOV)

Matzke, D.J.; Osowski, D.M.; Radtke, M.L.

1976-01-01

This progress report describes the objectives and results of the intercollegiate Energy Resource Alternatives competition. The one-year program concluded in August 1975, with a final testing program of forty student-built alternative energy projects at the Sandia Laboratories in Albuquerque, New Mexico. The goal of the competition was to design and build prototype hardware which could provide space heating and cooling, hot water, and electricity at a level appropriate to the needs of homes, farms, and light industry. The hardware projects were powered by such nonconventional energy sources as solar energy, wind, biologically produced gas, coal, and ocean waves. The competitionmore » rules emphasized design innovation, economic feasibility, practicality, and marketability. (auth)« less

Biological effects of Corynebacterium parvum. IV. Adjuvant and inhibitory activities on B lymphocytes

DOE Office of Scientific and Technical Information (OSTI.GOV)

Howard, J.G.; Christie, G.H.; Scott, M.T.

1973-05-01

The PFC response to the thymus-independent antigen SIII (type 3 pneumococcal polysaccharide) was amplified in mice injected 4 days previously with killed Corynebacterium parvum. This adjuvant activity was demonstrable with high (2 to 50 mu g) but not low (0.1 to 0.5 mu g) doses of SIII. Induction of tolerance was unaffected. Depression of the response resulted from simultaneous injection of SIII with either C. parvum or Bordetella pertussis, while prior treatment with the latter was without effect. Responsiveness to SIII was transiently but potently suppressed in spleen cells transferred into lethally irradiated, C. parvum pretreated mice. Although C. parvummore » is an effective B cell adjuvant, other data imply that it acts indirectly on these lymphocytes. It is argued that both adjuvant and suppressive activities of C. parvum on the B cell response to SIII are most probably mediated by activated macrophages. (auth)« less

Biological effects of Corynebacterium parvum. IV. Adjuvant and inhibitory activities on B lymphocytes

DOE Office of Scientific and Technical Information (OSTI.GOV)

Howard, J.G.; Christie, G.H.; Scott, M.T.

1973-05-01

The PFC response to the thymus-independent antigen SIII(type 3 pneumococcal polysaccharide) was amplified in mice injected 4 days previously with killed Corynebacterium parvum. This adjuvant activity was demonstrable with high (2 to 50 mu g) but not low (0.1 to 0.5 mu g) doses of SIII. Induction of tolerance was unaffected. Depression of the response resulted from simultaneous injection of SIII with either C. parvum or Bordetella pertussis, while prior treatment with the latter was without effect. Responsiveness to SIII was transiently but potently suppressed in spleen cells transferred into lethally irradiated, C. parvum pretreated mice. Although C. parvum ismore » an effective B cell adjuvant, other data imply that it acts indirectly on these iymphocytes. It is argued that both adjuvant and suppressive activities of C. parvum on the B cell response to SIII are most probably mediated by activated macrophages. (auth)« less

Very-long-baseline interferometry techniques applied to problems of geodesy, geophysics, planetary science, astronomy, and general relativity

DOE Office of Scientific and Technical Information (OSTI.GOV)

Counselman, C.C. III

1973-09-01

Very-long-baseline interferometry (VLBI) techniques have already been used to determine the vector separations between antennas thousands of kilometers apart to within 2 m and the directions of extragalactic radio sources to 0.1'', and to track an artificial satellite of the earth and the Apollo Lunar Rover on the surface of the Moon. The relative loostions of the Apollo Lunar Surface Experiment Package (ALSEP) transmitters on the lunar surface are being measured within 1 m, and the Moon's libration is being messured to 1'' of selenocentric src. Attempts are under way to measure the solar gravitational deflection of radio waves moremore » accurately than previously possible, by means of VLBI. A wide variety of scientific problems is being attacked by VLBI techniques, which may soon be two orders of magnitude more accurate than at present. (auth)« less

ON CRITICAL MASS ANALYSIS OF JRR-2

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1961-01-01

The critica mass of the JRR-2 was found to be 15 fuel elements, instead of 8 as expected, when the reactor reached criticaity. The critica mass was analyzed by AMF and JAERI a few years ago, but afterwards some modifications have been made of the stucture for the reinforcement, for example, during the construction. The critical mass is recalculated perfectly and the difference bctween 15 and S fuel elements is discussed. The deviation of the critical mass is mainly caused by the effects of control rods, fuel elcments, grid-plate, etc., in the reflector; only heavy water or light water wasmore » conaidered as the reflector in the previous calculation. A simple method is used to calculate the critical mass. The effective multiplication factor for the core with 15 fuel elements is obtained about 2% higher than the experimental value. This difference is also discussed in detail. (auth)« less

A CONTRIBUTION TO THE PATHOGENETIC PROBLEM OF HERPES ZOSTER IN THE COURSE OF IRRADIATED NEOPLASMS (PRESENTATION OF 21 PERSONAL CASES) (in Italian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ciampelli, I.; Crocella, R.

1962-06-01

Cases of Herpes Zoster observed in patients with neoplasms who were undergoing radiation or chemotherapeutic treatment are reported. Although no statistical value is attributed to the caselist, the higher incidence of symptomatic Zoster in systemic forms and particularly in lymphogranuloma is confirmed. On the basis of the concept of conditioned infectious disease, it is believed that the taking of the Herpes virus is mainly favored by the fall in the body's defense powers. The local effect of the ionizing radiations or of the neoplasm itself might have a certain value in localizing the virus in a given nervous segment. (auth)

Study of the Retention of Fission Products by a Few Common Minerals. Application to the Treatment of Medium Activity Effluents; ETUDE DE LA RETENTION DES PRODUITS DE FISSION PAR QUELQUES MINERAUX USUELS. (APPLICATION AUX TRAITEMENTS D'EFFLUENTS DE MOYENNE ACTIVITE SPECIFIQUE)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Auchapt, J.M.

1962-01-01

The conditions in which Sr is fixed on calcite (the object of Geneva report P/395-USA-- 1958) are more closely studied and the work is extended to five fission products in the effluerts and to 17 common rocks and minerals. Although this fixation is not suitsble as a method of treating STE effluents (i.e., those from the effluent treatment plant at MIarcoule), the study shows that all the crystals considered are strongly contaminated by simple contact. (auth)

CRITICAL EXPERIMENT WITH BORAX-V. Internal Superheater

DOE Office of Scientific and Technical Information (OSTI.GOV)

Plumlee, K.E.; Baird, Q.L.; Stanford, G.S.

1963-11-01

A critical experiment was performed with 12 BORAX-V superheater subassemblies in a central voidable region plus 1228 to 1525 UO/sub 2/ fuel pins (3 wt% enriched) in a peripheral region. Removing water (28% of superheater volume) at room temperature decreased reactivity by 2.2%. The midplane (two- dimensional) peak-to-average power distribution in the voided superheater was approximately 1.24, mostly attributable to flux depressions within insulated fuel boxes. Cadmium ratios are also reported. The experiment was initiated to supplement computational information which might have affected plans for loading the superheater zone into the BORAX-V reactor. No changes were indicated by the experiment.more » (auth)« less

DOE Office of Scientific and Technical Information (OSTI.GOV)

Blackstone, R.; Graham, L.W.

The dimensional changes observed in a range of graphitic materials following irradiation at 600, 900, and 1200 deg C are reported. The results are discussed in the light of current models for irradiation damage in graphite and it is concluded that for conventional materials the dimensional behaviour can be related to the material properties. Further confirmation of the extreme dependence of the dimensional changes on the crystallite size has been obtained. The way in which the rate of dimensional change varies with temperature is compatible with this effect being caused by vacancy loss at crystallite boundaries. For a given crystallitemore » size there appears to be a breakaway temperature above which the rate of dimensional change accelerates rapidly. (auth)« less

Production of radioisotopes with a Synchrocyclotron. Report No. 68; LA PRODUCCION DE RADIOISOTOPOS EN UN SINCROCICLOTRON. INFORME NO. 68

DOE Office of Scientific and Technical Information (OSTI.GOV)

Palcos, M.C.; Radicella, R.; Rodriguez, J.

1962-01-01

Possibilities for the use of a synchrotron for the production of radioisotopes are briefly considered in an analysis of its advantages and disadvantages. Because of the importance of the maximum surface of the particle bundle, the geometry of the bundie is briefly described. The techniques developed and the criteria used for the irradiation of various materials, with special refurence to the preparation of targets, are discussed. Methods perfected for the production and chemical separation of carrier-free Bel, e/sup 59/, Sr/sup 85/, Y/sup 88/, In/sup 111/, and Bi/sup 206/, are given. Some of these isotopes are produced routinely. (tr-auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

Twenty six papers are presented from the four sessions of the meeting, dealing with the following subject fields: light mechanical systems and equipment; heavy dynamic mechanical systems and equipment; sturctures; and, relevant experience from various fields. (auth)

PRELIMINARY STUDY OF THE PRESSURE TRANSDUCER PROJECT

DOE Office of Scientific and Technical Information (OSTI.GOV)

Eldridge, A.J.

1956-08-01

A feasibility study is presented of the application of several commercially available pressure transducers for incorporation in a dynamic baro- switch tester or for use in a baro-switch application. (auth)

RANDOM MATRIX DIAGONALIZATION--A COMPUTER PROGRAM

DOE Office of Scientific and Technical Information (OSTI.GOV)

Fuchel, K.; Greibach, R.J.; Porter, C.E.

A computer prograra is described which generates random matrices, diagonalizes them and sorts appropriately the resulting eigenvalues and eigenvector components. FAP and FORTRAN listings for the IBM 7090 computer are included. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Dottori, H.A.; Fourcade, C.R.

The object Fourcade--Figueroa (F-- F) ( alpha /sub 50/ = 32/sub m/5; sigma /sub 50/ == and a corrected recession velocity of 830 km/s. The possibility is discussed that it is physically associated with the elliptic galaxy NOC 5128. (auth)

Black-hole model of galactic nuclei

DOE Office of Scientific and Technical Information (OSTI.GOV)

Norman, C.A.; ter Haar, D.

1973-04-01

It is shown that the observed large infrared emission from some galactic nuclei finds a natural explanation, if one takes plasma turbulence into account in Lynden-Bell and Rees' blackhole model of galactic nuclei. (auth)

Work-Based Learning: Finding a New Niche.

ERIC Educational Resources Information Center

Johnston, George H.

2001-01-01

Describes how a new manufacturing technology program at one college, seeking to use work-based learning extensively, has addressed success factors identified in a national study of exemplary programs. (Contains 10 references.) (AUTH/NB)

Nonaqueous actinide hydride dissolution and production of actinide $beta$- diketonates

DOEpatents

Crisler, L.R.

1975-11-11

Actinide beta-diketonate complex molecular compounds are produced by reacting a beta-diketone compound with a hydride of the actinide material in a mixture of carbon tetrachloride and methanol. (auth)

Radiosensitivity of jute

DOE Office of Scientific and Technical Information (OSTI.GOV)

Joshua, D.C.; Thakare, R.G.; Rao, N.S.

1972-11-01

The differential effects of fast and thermal neutrons and gamma rays on diploid ond autotetraploid of C. olitorius cv JRO 632 were studied. The frequency and spectrum of lethal chlorophyll mutations were studied in the diploid variety. (auth)

PERFORMANCE OF A HIGH-VELOCITY PROPELLANT GUN FOR CONTROLLED IMPACTS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Graham, R.A.; Ingram, G.E.; Ingram, W.D.

1961-11-01

Greatly enhanced extractions (synergism) for di, tri, and tetravalent metals were reported for the system M(sup n+/ HTTA/S/diluent where HTTA is thenolytrifluoracetone and S varies from the Highly polar tri-octyl phosphine oxide to the weakly basic triphenyl phosphate. The extracted speenes the partition coefficients of thc metal ion vary over several powers of ten, sometimes by a factor much greater than that obtained by the synergic effect itself. Thc citect. oa the extraction, of so-called inert diluents such as cyclohexane, hexane, carbon tetrachloride, benzene, and chloroform was studied under various conditions. In all cases the distribution ratio decreases as themore » diluent ns changed from cyclobexane in the above sequence, chloroform giving the lowest partition coefficient. This order is in the same sequence as the water solubility in the pure diluent and the diluent effect on metal extraction ns probably connected through the diluent water content with tbe permanent or induced diluent dipole. (auth) The performance of an extensively modified U. S. Army 40-mm gun for producing controlled impacts is described. Various projectile velocities in the range of 200 fps to 3200 fps were achieved by varying the amount of a fastburning propellant. The desired velocity may be varied in small increments. lmpact occurs while the projectile is being guided by the bore of the gun, thus facilitating precise alignment between the impacting surface of the projectile and the target specimen. Evacuating the barrel between the projectile and target eliminates undesired air cushioning to insure a step function impact. Projectile velocity measurements are made just prior to impact. (auth)« less

SPECTROPHOTOMETRIC DETERMINATION OF CALCIUM WITH GLYOXAL BIS (2-HYDROXY- ANIL)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Florence, T.M.; Morgan, J.

1961-03-01

A selective method is described for the spectrophotometric determination of calcium using glyoxal bis(2hydroxy-anil) as the chromogenic agent. A comprehensive study of interferences and reagent variables was made. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sadoulet, B.

The use of drift chambers in the field of high energy physics is reviewed including existing apparatus, plans and dreams. Comments are made especially on low cost large area drift chambers, use of pulse height information and high spatial resolution applications. (auth)

Low temperature, low pressure hydrogen gettering

DOEpatents

Anderson, D.R.; Courtney, R.L.; Harrah, L.A.

1975-07-22

A system is described for the gettering of hydrogen and its isotopes. The gettering materials are painted or coated onto, or otherwise disposed in an area or volume from which hydrogen is to be removed. (auth)

TEXTURES IN EXTRUDED URANIUM

DOE Office of Scientific and Technical Information (OSTI.GOV)

Russell, R.B.

The preferred orientation or texture of alpha-extruded, cold-swaged, recrystallized, and beta-quenched uranium has been determined. An attempt is made to predict the mean thermal expansion coefficients from the texture and principal crystallographic thermal expansion coefficients. (auth)

RADIATION PRESERVATION OF FRESH STRAWBERRIES AND GRAPES. Report No. 2 (Progress) for March 5, 1959-December 31, 1959

DOE Office of Scientific and Technical Information (OSTI.GOV)

Maxie, E.C.; Nelson, K.E.

1960-10-31

Royal apricots are softened markedly at doses of 200,000 rads and greater. This appears to be a radiation effect on texture for the time of the onset of the climacteric was not altered. The ripening of Bartlett pears was inhibited by doses of 100.000 and 200,000 rads. Similatcd transit tests with Shasta strawberries indicate that irradiation at doses of 100.000 and 200.000 rads with an 8-Mev electron beain from a linear accelerator had no significant ill effects on the texture of the berries. Taste panel evaluations indicate that acceptance of Shasta strawberries is not adversely effected by irradiation at dosesmore » up to 200,000 rads. (auth)« less

Gasification in pulverized coal flames. First quarterly progress report, July--September 1975

DOE Office of Scientific and Technical Information (OSTI.GOV)

Laurendeau, N. M.

1975-10-01

This project is concerned with the production of power and synthesis gases from pulverized coal via suspension gasification. Specifically, the concentric jet and vortex gasifiers, with separation of oxidation and reduction zones, will be investigated. Gasifier performance will be correlated with internally measured temperature and concentration profiles. A suction pyrometer will be used to simultaneously measure temperature and gas concentrations. Rapid species analysis will be provided by a UTI Q-30C mass spectrometer system. To date, a coal-handling facility has been developed, test cell design has been initiated, and preliminary literature searches have been made. A coal crusher, pulverizer, feeder, andmore » sieve shaker are on order. Preliminary consultations are underway concerning the mass spectrometer system. (auth)« less

Zirconium hydride reactor control reflector systems: summary report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Horton, P.H.; Kurzeka, W.J.

1972-06-30

The beryllium reflector control system development for SNAP reactors is documented, from the initial SNAP 10A System through the current 5-kW(e) Thermoelectric System. Described are the various reflector concepts used in these systems for shadowshielded and 4 pi -shielded nuclear systems. The development of the key components, such as the actuators, bearings, and drive mechanisms for these systems, is also traced from the SNAP 10A concept through to the current system. Developmental test results are outlined, showing the performance capability improvements made throughout the life of the SNAP programs. Component development was highly successful, as proven by a number ofmore » reactor systems tests, including the launch and operation of the SNAP 10A flight. 46 references. (auth)« less

PROPERTIES OF URANIUM MONOCARBIDE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Brown, D.J.; Stobo, J.J.

1963-02-01

Some of the properties of UC relevant to its use as a fuel for either thermal or fast reactors were evaluated. The oxidation resistance of cast UC is shown to be superior to that of U metal above about 550 deg C in CO/sub 2/, and above about 200 deg C in air containing 1 wt% H/sub 2/O. In CO/sub 2/ at 800 deg C, even porous sintered UC is more resistant than U. Good compatibility with liquid Na (containing 10 ppm O) is reported, after 8 weeks at 800 and at 750 deg C. Hot-hardness values drop from 700more » VPN at 300 deg C to 50 VPN at 1000 deg C. (auth)« less

47 CFR 95.1402 - Special requirements for 406 MHz PLBs.

Code of Federal Regulations, 2010 CFR

2010-10-01

...: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200 Auth Road, Suitland, Maryland... Administration (NOAA) whose address is: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200...

47 CFR 95.1402 - Special requirements for 406 MHz PLBs.

Code of Federal Regulations, 2011 CFR

2011-10-01

...: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200 Auth Road, Suitland, Maryland... Administration (NOAA) whose address is: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200...

47 CFR 95.1402 - Special requirements for 406 MHz PLBs.

Code of Federal Regulations, 2013 CFR

2013-10-01

...: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200 Auth Road, Suitland, Maryland... Administration (NOAA) whose address is: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200...

47 CFR 95.1402 - Special requirements for 406 MHz PLBs.

Code of Federal Regulations, 2012 CFR

2012-10-01

...: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200 Auth Road, Suitland, Maryland... Administration (NOAA) whose address is: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200...

1024-channel portable gamma-ray spectrometer

DOE Office of Scientific and Technical Information (OSTI.GOV)

McGibbon, A.L.

An instrument is described which is designed to determine radioactive isotope spectra in the field under adverse environmental conditions. The instrument is battery-powered, stores and compares multiple spectra, and performs computations upon the resulting displayed graph. (auth)

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Weather Service NWS logo - Click to go to the NWS home page Climate Prediction Center Site Map News Prediction Climate Prediction Center 5200 Auth Road Camp Springs, Maryland 20746 Climate Prediction Center

Waterflooding employing surfactants produced in situ

DOE Office of Scientific and Technical Information (OSTI.GOV)

Foster, W.R.

1975-11-25

A waterflooding process involving the injection of an aqueous solution of an alkali metal fluoride and an alkaline agent to convert divalent metal soaps within the reservoir to the corresponding surface-active monovalent metal soaps is described. (auth)

ATTENUATION OF SIMULATED FALLOUT RADIATION BY THE ROOF OF A CONCRETE BLOCKHOUSE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schmoke, M.A.; Rexroad, R.E.

1961-08-01

An experiment was carried out to verify theoretical calculations of the effect of roof thickness on the radiation level inside a concrete blockhouse from a plane of gamma radiation on the roof. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Mandl, V.; Oliveira, L.

A portable alpha monitor with solid state detectors is described. The full scale range is 1000 p.p.s., and an auditive indication is also provided. The battery life is about 70 hr. The instrument operates correctly in a gamma field up to 8 r/hr. (auth)

A 23-GROUP NEUTRON THERMALIZATION CROSS SECTION LIBRARY

DOE Office of Scientific and Technical Information (OSTI.GOV)

Doctor, R.D.; Boling, M.A.

1963-07-15

A set of 23-group neutron cross sections for use in the calculation of neutron thermalization and thermal neutron spectral effects in SNAP reactors is compiled. The sources and methods used to obtain the cross sections are described. (auth)

Subcuaneous extravasation of CSF demonstration by scinticisternography

DOE Office of Scientific and Technical Information (OSTI.GOV)

Front, D.; Penning, L.

The scinticisternographic lindings using /sup 131/I-HSA in a case of traumatic subcutaneous extravasation of CSF into the facial region are described. This extravasation has to be differentiated from local accumulation of radioactivity inside the CSF spaces. (auth)

MTR FAST NEUTRON FLUX MEASUREMENTS FOR CYCLE 146

DOE Office of Scientific and Technical Information (OSTI.GOV)

Weber, L D; Hogg, C H

1962-03-20

The fast neutron fluxes in selected positions of the MTR were measured for Cycle 146. The measurements were made at the beginning, throughout, and at the end of the cycle (564 Mwd). Vertical traverses for each position monitors are shown. (auth)

PROPANE BUBBLE CHAMBER (in Italian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Loria, A.; Mittner, P.; Scotoni, I.

1959-03-01

A propane bubble chamber of about two liters volume is described: details concerning the membrane expansion mechanism, the structure of the windows and the illuminating system are given. Some features of the use of it, recently made at the CERN synchrocyclotron, are indicated. (auth)

Pauli Principle and Pion Scattering

DOE R&D Accomplishments Database

Bethe, H. A.

1972-10-01

It is pointed out that if the Pauli principle is taken into account in the discussion of pion scattering by complex nuclei (as it ought, of course, to be) some rather implausible consequences of some earlier treatments of this problem can be avoided. (auth)

Spectroscopic obit for the eclipsing binary IQ Persei

DOE Office of Scientific and Technical Information (OSTI.GOV)

Young, A.

1975-10-01

Spectroscopic orbital elements are derived for the eclipsing binary IQ Per. Faint secondary lines are detected, and a mass ratio and individual masses are inferred. The components are found to be on the main sequence, and the system is detached. (auth)

A High Vacuum High Speed Ion Pump

DOE R&D Accomplishments Database

Foster, J. S. Jr.; Lawrence, E. O.; Lofgren, E. J.

1952-08-27

A vacuum pump based on the properties of a magnetically collimated electric discharge is described. It has a speed in the range 3000 to 7000 liters a second and a base pressure in the order of 10{sup -6} mm. (auth)

EXAMINATION OF Zr AND Ti RECOMBINER LOOP SPECIMENS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rittenhouse, P.L.

1958-12-19

Cold-worked specimens of iodide zirconium, Zircaloy-2, iodide titanium, and A-55 titanium were tested in a high-pressure recombiner loop in an attempt to duplicate anomalous results obtained in a prior recombiner loop. Hydrogen analyses and metallographic examinations were made on all specimens. The titanium materials and Zircaloy-2 picked up major amounts of hydrogen in the cell section. None of the materials tested showed appreciable hydrogen absorption in the recombiner section. Complete recrystallization occurred in all cell specimens while only Zircaloy-2, of the recombiner specimens, showed any degree of recrystallization. No explanation for this behavior can be given. A survnnary of themore » data obtained in previous recombiner loops is compared with the results of this loop. Conclusions were based on the results of three recombiner loops. Primarlly because of the hydrogen absorption data obtained in all three recombiner loops it is recommended that the zirconium and titunium materials tested not be used in environments similar to those encountered in high pressure recombiner loops. (auth)« less

EFFECTS OF OVERPRESSURES IN GROUP SHELTERS ON ANIMALS AND DUMMIES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Roberts, J.E.; White, C.S.; Chiffelle, T.L.

1953-09-01

S>Relative biological hazards of blast were studied in two types of communal air-raid shelters during Shots 1 and 8. Dogs, restrained within the shelters during detonation, were studied pathologically and clinically for blast injuries. Two anthropometric dummies were test objects for displacement studies utilizing high-speed photography. Physical data included pressure vs time and air-drag determinations. During Shot 1, animals sustained marked blast damages (hemorrhages in lungs and abdominal organs), three dogs were ataxic. and the dummies were rather violently displaced. In Shot 8, however, no significant injuries were found in the animals, and the dummies were minimally displaced. Analysis ofmore » the physical data indicated that blast injuries and violent displacements may occur at much lower static overpressures than previously assumed from conventional explosion data. Furthermore, biological damage appeared to be related to the rate of rise of the overpressure and air drag, as well as the maximum overpressure values. (auth)« less

LOCALIZATION OF GOLD IN MOUSE BRAIN IN RELATION TO GOLD THIOGLUCOSE OBESITY

DOE Office of Scientific and Technical Information (OSTI.GOV)

Debons, A.F.; Silver, L.; Cronkite, E.P.

1962-04-01

Administration of gold thioglucose led to the development of hyperphagia and obesity in mice; this confirmed findings by previous investigators. By employing neutron activation analysis and radioautography, it was observed that this syndrome was associated with focal accumulation of gold in the hypothalamus. Animals treated with gold thiomalate failed to show any hypothalamic Iocalization of gold radioautographically or any evidence of the syndrome of hyperphagla and obesity. In additlon, other foci of gold locallzation were found in gold thioglucose-treated but not in the gold thiomalate-treated animals. Gamma spectroscopy studies made possible quantitative measurements of the gold content ln the brainsmore » of both treated groups. Gold thioglucose-treated as well as gold thiomalate-treated animals had appreciable quantities of gold in the brain proper. Phosphorus-32 generated by neutron activation of the sulfur moiety of gold thioglucose proved to be insigniflcant in its contribution to the radioautographic flndings. Implication of the above findings for the glucostatic theory of appetite regulation is discussed. (auth)« less

THERMODYNAMICS OF THE ACTINIDES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Cunningham, Burris B.

1962-04-01

Recent work on the thermodynamic properties of the transplutonium elements is presented and discussed in relation to trends in thermodynamic properties of the actinide series. Accurate values are given for room temperature lattice parameters of two crystallographic forms, (facecentred cubic) fcc and dhcp (double-hexagonal closepacked), of americium metal and for the coefficients of thermal expansion between 157 and 878 deg K (dhcp) and 295 to 633 deg K (fcc). The meiting point of the metal, and its magnetic susceptibility between 77 and 823 deg K are reported and the latter compared with theoretical values for the tripositive ion calculated frommore » spectroscopic data. Similar data (crystallography, meiting point and magnetic susceptibility) are given for metallic curium. A value for the heat of formation of americium monoxide is reported in conjunction with crystallographic data on the monoxide and mononitride. A revision is made in the current value for the heat of formation of Am/O/sub 2/ and for the potential of the Am(III)-Am(IV) couple. The crystal structures and lattice parameters are reported for the trichloride, oxychloride and oxides of californium. (auth)« less

PERFORMANCE TESTS OF SNAP 10A THERMOELECTRIC ELEMENTS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bergdorf, C.G.

1961-08-30

Apparatus for the performanee testing of SNAP 10A thermoelectric elements was designed, constructed, and is now in operation. Elements may be tested for any desired length of tfme up to 1400 deg F and in a vacuum of 1 x 10/ sup -5/ of Hg. The equipment used for these tcsts may also be utilized for measuring Seebeck coefficient and resistance as a function of temperature. Element performance is derived from the data on voltages and temperatures. The performance variables which are reported in graphic form are as follows: loaded output voltage at any desired DELTA T; open circuit outputmore » voltage at any desired DELTA T; power output under optimum load conditions; current produced under matched load conditions; and internal resistance of the element. (auth)« less

Experiences in radiotherapy of vulvar carcinomas (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Makoski, H.B.; Sack, H.

1973-04-01

The management of 137 patients with carcinoma of the vulva is reported. The mean age at the onset of the disease of the patient was 64.1 yrs. Between 34 and 45% of the patients had diabetes. The predominant type of carcinoma was squamous cell carcinoma with the lesion originating from the labia. Metastases were found in eight patients. The value of lymphography in the management of carcinoma of the vulva is discussed. The 5 year survival rate was 24%. In the group of patients receiving radiotherapy alone, a high incidence of recurrence was observed. Following adequate surgery for carcinoma ofmore » the vulva, the incidence of recurrence was low. It is concluded that a mature carcinoma of the vulva cannot be cured by radiotherapy as the only modality. (auth)« less

Termination for superconducting power transmission systems

DOEpatents

Forsyth, E.B.; Jensen, J.E.

1975-08-26

This patent relates to a cold, electrical gradient, terminal section for a superconducting cable for alternating current power transmission. A cold electrical gradient section filled with a gaseous coolant acting as an insulator is provided in series with a separate thermal gradient section. (auth)

ANALYTICAL METHOD FOR THE DIRECT ABSORPTIOMETRIC DETERMINATION OF BORON IN ZIRCONIUM METAL AND ITS ALLOYS

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1962-01-01

The sample is dissolved in a mixture of ammonium suifate and sulfuric acid. Rosocyanin is formed in the presence of Zr and, after separation from excess curcumin, it is dissolved in ethanol for absorptiometric measurement. (auth)

Qualitative analysis scheme based on the properties of ion exchangers (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Machiroux, R.; Merciny, E.; Schreiber, A.

1973-01-01

A systematic scheme of qualitative analysis of some cations is presented. For didactic purposes the properties of cationic and anionic ion exchangers were used. At the present time, this scheme is limited to 23 ions, including Sr. (auth)

dLocAuth: a dynamic multifactor authentication scheme for mCommerce applications using independent location-based obfuscation

NASA Astrophysics Data System (ADS)

Kuseler, Torben; Lami, Ihsan A.

2012-06-01

This paper proposes a new technique to obfuscate an authentication-challenge program (named LocProg) using randomly generated data together with a client's current location in real-time. LocProg can be used to enable any handsetapplication on mobile-devices (e.g. mCommerce on Smartphones) that requires authentication with a remote authenticator (e.g. bank). The motivation of this novel technique is to a) enhance the security against replay attacks, which is currently based on using real-time nonce(s), and b) add a new security factor, which is location verified by two independent sources, to challenge / response methods for authentication. To assure a secure-live transaction, thus reducing the possibility of replay and other remote attacks, the authors have devised a novel technique to obtain the client's location from two independent sources of GPS on the client's side and the cellular network on authenticator's side. The algorithm of LocProg is based on obfuscating "random elements plus a client's data" with a location-based key, generated on the bank side. LocProg is then sent to the client and is designed so it will automatically integrate into the target application on the client's handset. The client can then de-obfuscate LocProg if s/he is within a certain range around the location calculated by the bank and if the correct personal data is supplied. LocProg also has features to protect against trial/error attacks. Analysis of LocAuth's security (trust, threat and system models) and trials based on a prototype implementation (on Android platform) prove the viability and novelty of LocAuth.

FORCE MULTIPLIER FOR USE WITH MASTER SLAVES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Miles, L.E.; Parsons, T.C.; Howe, P.W.

1961-06-01

A force multiplier was designed. This piece of equipment was made to increase the gripping force presently available in the Model 8 master slave. The force multiplier described incorporates a clamp which can be quickly attached to and detached from the master slave hand. (auth)

The Effectiveness of a Japanese Language Course on Cross-Cultural Competence.

ERIC Educational Resources Information Center

Miyamoto, Yumi; Rasmussen, Roger

1998-01-01

A quasi-experimental research design was employed to measure the effectiveness of a Japanese language and culture course entitled "Japanese for the Business Community." The study analyzed seven cross-cultural competence attributes in interactions with Japanese people in business settings. (Auth/JL)

PROBLEMS OF THE OPTICAL MODEL FOR DEUTERONS. I. PARAMETERS OF THE OPTICAL POTENTIAL (in Polish)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Grotowski, K.

1963-01-01

S>Problems concerning the optical model are discussed. Some special properties of deuterons as projectiles influence the optical model describing their interaction with nuclei. Several experiments were performed to obtain parameters of the optical model potential. (auth)

Type-II domains in ferroelectric gadolinium molybdate (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bohm, J.; Kuersten, H.D.

Etching (001)-faces of gadolinium molybdate (GMO) reveals new kinds of domains. They are created by a translation, that leaves the spontaneous polarization and the transition parameter invariant. The translation vector is a part of a lattice vector, similar to stacking faults. (auth)

Electron beam device

DOEpatents

Beckner, E.H.; Clauser, M.J.

1975-08-12

This patent pertains to an electron beam device in which a hollow target is symmetrically irradiated by a high energy, pulsed electron beam about its periphery and wherein the outer portion of the target has a thickness slightly greater than required to absorb the electron beam pulse energy. (auth)

OBSERVATIONS ON RHENIUM-TUNGSTEN ALLOYS (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kirner, K.

1959-12-01

Re-W alloys were arc melted between tungsten electrodes, checked metallographically and their hardness was determined. Two intermetallic phases were found, one of which---a stgroa phase--having a broad homogeneity range (approximately from 40 to 60%) and a high hardness (1800 VPN/sub 300/). (auth)

Security issues of Internet-based biometric authentication systems: risks of Man-in-the-Middle and BioPhishing on the example of BioWebAuth

NASA Astrophysics Data System (ADS)

Zeitz, Christian; Scheidat, Tobias; Dittmann, Jana; Vielhauer, Claus; González Agulla, Elisardo; Otero Muras, Enrique; García Mateo, Carmen; Alba Castro, José L.

2008-02-01

Beside the optimization of biometric error rates the overall security system performance in respect to intentional security attacks plays an important role for biometric enabled authentication schemes. As traditionally most user authentication schemes are knowledge and/or possession based, firstly in this paper we present a methodology for a security analysis of Internet-based biometric authentication systems by enhancing known methodologies such as the CERT attack-taxonomy with a more detailed view on the OSI-Model. Secondly as proof of concept, the guidelines extracted from this methodology are strictly applied to an open source Internet-based biometric authentication system (BioWebAuth). As case studies, two exemplary attacks, based on the found security leaks, are investigated and the attack performance is presented to show that during the biometric authentication schemes beside biometric error performance tuning also security issues need to be addressed. Finally, some design recommendations are given in order to ensure a minimum security level.

THE PROLIFERATION IN VITRO OF TISSUE TAKEN FROM TUBERS OF HELIANTHUS TUBEROSUS IRRADIATED WITH X-RAYS (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Jonard, R.

1959-06-22

ABS>The irradiation of tubers of Helianthus tuberosus (Jerusalem Artichoke) with x rays causes latent changes in their cells which are expressed later when one makes use of their tissues in an in vitro culture. (tr-auth)

Improved ASP I/O performance. [For 370/195

DOE Office of Scientific and Technical Information (OSTI.GOV)

Engert, D.E.

1975-11-01

An improvement to the I/0 routines of ASP is described, which can save 25% of the EXCPs issued by ASP. Unused buffers in the buffer pool are used to retain parts of the single track table, and only two modules are changed. 4 figures (auth)

Professional Development: Setting the Context.

ERIC Educational Resources Information Center

Watts, Gordon E.; Hammons, James O.

2002-01-01

States that professional development programs, though they run the gamut from fledgling to comprehensive, have developed over the last three decades as a result of the rapid growth of the community college. Examines some of the early struggles of the professional development movement and discusses future challenges. (AUTH/NB)

Binghamton Burial Vault Co., 2017-06

EPA Pesticide Factsheets

EPA is providing notice of a proceeding to assess a Class I civil penalty for alleged violations of the Clean Water Act (Act). EPA is also providing notice of opportunity to comment on the proposed penalty assessment. Under 33 U.S.C. § 1319(g), EPA is auth

THE GRAVIMETRIC DETERMINATION OF MOLYBDENUM IN URANIUM-MOLYBDENUM ALLOYS

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1959-03-01

The sample is dissolved in nitric and hydrochloric acids. After heating the solution with sulfuric acid, molybodenum is precipitated as the benzoin-oxime complex which is ignited to molybdic oxide. This is dissolved in ammonia, and the molybdenum is precipitated and weighed as lead molybdate. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Surynek, J.; Mach, P.; Dressler, J.

The administering of oxytetracycline, vitamin B/sub 12/, and folic acid is efficient in the recovery from postirradiation leucopenia in whole-body irradiated chicks. Oxytetracycline and vitamin B/sub 12/ combined influenced especially the number of heterophils, and the addition of folic acid resulted in a significant rise of the absolute lymphocyte count. (auth)

EFFECTS OF HYDROBIOTITES UPON STRONTIUM-89 AND CESIUM-137 RETENTION BY RUMINANT ANIMALS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hansard, S.L.

1964-02-01

Radiochemicai studies with ruminant animals indicate that activated verxites, a nearly pure hydrobiotite, effectively bind Sr-89 and Cs-137 in vitro and in vivo, thus increasing excretion rate and quantity of these radionuclides injected or ingested at tracer levels. (auth)

Radial blanket assembly orificing arrangement

DOEpatents

Patterson, J.F.

1975-07-01

A nuclear reactor core for a liquid metal cooled fast breeder reactor is described in which means are provided for increasing the coolant flow through the reactor fuel assemblies as the reactor ages by varying the coolant flow rate with the changing coolant requirements during the core operating lifetime. (auth)

Preliminary topical report on comparison reactor disassembly calculations

DOE Office of Scientific and Technical Information (OSTI.GOV)

McLaughlin, T.P.

1975-11-01

Preliminary results of comparison disassembly calculations for a representative LMFBR model (2100-l voided core) and arbitrary accident conditions are described. The analytical methods employed were the computer programs: FX2- POOL, PAD, and VENUS-II. The calculated fission energy depositions are in good agreement, as are measures of the destructive potential of the excursions, kinetic energy, and work. However, in some cases the resulting fuel temperatures are substantially divergent. Differences in the fission energy deposition appear to be attributable to residual inconsistencies in specifying the comparison cases. In contrast, temperature discrepancies probably stem from basic differences in the energy partition models inherentmore » in the codes. Although explanations of the discrepancies are being pursued, the preliminary results indicate that all three computational methods provide a consistent, global characterization of the contrived disassembly accident. (auth)« less

PRIMARY AND SECONDARY ANTITOXIN RESPONSES IN THYMECTOMIZED MICE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hess, M.W.; Cottier, H.; Stoner, R.D.

1963-04-11

A total of 68 Swiss albino mice of either sex were thy; mectoraized at the following time intervals after birth: 22 during day one, 21 during day two, 17 on day four and 8 on day eight. Sixty-one nonoperated litter-rnates served as controls. All mice were given primary andtigenic stimulation with adsorbed tetanus toxoids when four weeks of age. Three weeks later a booster injection of fluid tetanus tokoid was given. With these time intervals thymectomized mice showed only slightly impaired primary responses but severely repressed secondary responses as compared to nonoperated litter-mates. This uncommon finding is difficult to explainmore » at present and results are discussed with regard to other reports on the effect of postnatal thymectoniy on immune responses. Special emphasis is placed on the unknown effect of postthymectomy wasting syndrome. (auth)« less

Liner for extrusion billet containers. Interim Technical Documentary Progress Report, February 1--April 30, 1963

DOE Office of Scientific and Technical Information (OSTI.GOV)

Spachner, S. A.

1963-05-01

A shrink-fit assembly device for buildup of ceramiccoated liner and sleeve assemblies was tested and modified to develop desired temperatures and suitable heat distribution in sleeves, which were heated. Nine different compositions of fiber metal reinforced ceramic compacts were produced for preliminary evaluation of suitability for extrusion liner use. Procedures were developed for welding short, hollow ceramic cylinders of high-strength metal carbides and borides to form a ceramic extrusion liner of suitable length. Dissassembly tooling for rapid separation of shrink-fitted sleeves from a worn liner was designed, fabricated, and tested. Preliminary extrusion testing of an alumina-coated liner was carried out,more » using SAE 4340 steel billets extruded to rod at 12 : 1 and 16 : 1 ratios. No coating wear was noted after extrusion of 3 billets. (auth)« less

Gamma spectrometry application of the Kola Peninsula (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Golovin, I.V.; Kolesnik, N.N.; Antipov, V.S.

1973-03-01

The methods and results are reported of a spectrometric study, carried out with the SP-3 instrument in Pre-Cambrian fornnations in the northwest ranges of Kola Peninsula for clarification of the radiochemical characteristics of the rocks of the region and of the distribution characteristics of radioactive elements in Cu-Ni mineralizations. It was established that the content of radioactive elements in the rocks varies within a wide interval and corresponds basically to the Vinogradov content. The radioactive element content in typical metamorphic and magmatic complexes and sulfide ores was determined. The spectrometric method can be used for the solution of various geologicalmore » problems. It is particularly useful for studying the separation of strata, the genesis of magmatic and metamorphic complexes, and the metamorphic and geochemical zonality and granitization processes. (tr-auth)« less

Excitation Function of the Reaction Al$sup 27$(d,p)Al$sup 28$ from 2.2 to 12.6 Mev. Report No. 65; FUNCION DE EXCITACION DE LA REACCION AL$sup 27$(d,p)Al$sup 28$ ENTRE 2,2 Y 12,6 Mev. INFORME NO. 65

DOE Office of Scientific and Technical Information (OSTI.GOV)

Flores, J.M.

1962-01-01

The excitation function is measured for the reaction Al/sup 27/(d,p)Al/ sup 28/ between 2.2 and 12.6 Mev. The calibration of the excitation function in absolute form is carried out by measuring simultaneously the excitation function of the reactions Al/sup 27/(d,p) and (d, alpha p) and comparing the results obtained with those of Batzel et al. The maximum of the function is between 7 and 8 Mev, and is 239 plus or minus 29 mb. The half life of Al/sup 28/ was determined as 2.28 plus or minus 0.06 min. (tr-auth)

Acoustical and thermal performance of exterior residential walls, doors, and windows

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sabine, H.J.; Lacher, M.B.; Flynn, D.R.

1975-11-01

Laboratory tests of sound transmission loss, thermal transmittance, and rate of air leakage were conducted on full scale (9 feet high x 14 feet wide; 2.7 x 4.3 meters) specimens of typical residential exterior wall constructions, either unbroken or penetrated by a door or window. The walls were of wood frame construction with gypsum board drywall interior finish and exterior finishes of wood siding, stucco, or brick veneer. Additional accoustical tests were run on a number of individual doors and windows. A total of 109 acoustical tests and 48 thermal tests are reported. The resultant data are compared with literaturemore » data on similar constructions. Correlations developed among the several quantities measured will assist more rational design where both energy conservation and noise isolation must be considered. (130 references) (auth)« less

Tornado and extreme wind design criteria for nuclear power plants

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1973-12-01

Nuclear power plant design criteria for tornadoes and extreme winds are presented. Data, formulas, and procedures for determining maximum wind loading on structures and parts of structures are included. Extreme wind loading is applied to structures using methods and procedures consistent with ANSI Building Code A58.1- 1972. The design wind velocities specified generally exceed 100-year recurrent interval winds. Tornado wind loading is applied to structures using procedures paralleling those for extrene winds with additional criteria resulting from the atmospheric pressure change accompanying tornadoes and tornado missile inipact effects. Tornado loading for the 48 contiguous United States is specified for twomore » major zones separated by the Continental Divide. A cross reference listing items related to Atomic Energy Commission Safety Analysis Report format is provided. Development supporting tornado criteria is included. (auth)« less

MHSS: a material handling system simulator

DOE Office of Scientific and Technical Information (OSTI.GOV)

Pomernacki, L.; Hollstien, R.B.

1976-04-07

A Material Handling System Simulator (MHSS) program is described that provides specialized functional blocks for modeling and simulation of nuclear material handling systems. Models of nuclear fuel fabrication plants may be built using functional blocks that simulate material receiving, storage, transport, inventory, processing, and shipping operations as well as the control and reporting tasks of operators or on-line computers. Blocks are also provided that allow the user to observe and gather statistical information on the dynamic behavior of simulated plants over single or replicated runs. Although it is currently being developed for the nuclear materials handling application, MHSS can bemore » adapted to other industries in which material accountability is important. In this paper, emphasis is on the simulation methodology of the MHSS program with application to the nuclear material safeguards problem. (auth)« less

47 CFR 87.199 - Special requirements for 406.0-406.1 MHz ELTs.

Code of Federal Regulations, 2014 CFR

2014-10-01

... identification code, issued by the National Oceanic and Atmospheric Administration (NOAA), the United States... code addressed to: NOAA/SARSAT Beacon Registration, E/SP3, Federal Building 4, Room 3320, 5200 Auth..., type of aircraft, alternate emergency contact, and other information as required by NOAA. The...

47 CFR 95.1402 - Special requirements for 406 MHz PLBs.

Code of Federal Regulations, 2014 CFR

2014-10-01

... code, issued by the National Oceanic and Atmospheric Administration (NOAA), the United States Program...: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200 Auth Road, Suitland, Maryland... emergency contact and include the following statement: “WARNING” failure to register this PLB with NOAA...

47 CFR 87.199 - Special requirements for 406.0-406.1 MHz ELTs.

Code of Federal Regulations, 2013 CFR

2013-10-01

... identification code, issued by the National Oceanic and Atmospheric Administration (NOAA), the United States... code addressed to: NOAA/SARSAT Beacon Registration, E/SP3, Federal Building 4, Room 3320, 5200 Auth..., type of aircraft, alternate emergency contact, and other information as required by NOAA. The...

Computer memory: the LLL experience. [Octopus computer network

DOE Office of Scientific and Technical Information (OSTI.GOV)

Fletcher, J.G.

1976-02-01

Those aspects of Octopus computer network design are reviewed that relate to memory and storage. Emphasis is placed on the difficulties and problems that arise because of the limitations of present storage devices, and indications are made of the directions in which technological advance could be of most value. (auth)

Determination of parameters of a nuclear reactor through noise measurements

DOEpatents

Cohn, C.E.

1975-07-15

A method of measuring parameters of a nuclear reactor by noise measurements is described. Noise signals are developed by the detectors placed in the reactor core. The polarity coincidence between the noise signals is used to develop quantities from which various parameters of the reactor can be calculated. (auth)

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Weather Service NWS logo - Click to go to the NWS home page Climate Prediction Center Site Map News address. NOAA/ National Weather Service National Centers for Environmental Prediction Climate Prediction Center 5200 Auth Road Camp Springs, Maryland 20746 Page Author: Climate Prediction Center Internet Team

Attention: Page has moved

Science.gov Websites

Weather Service NWS logo - Click to go to the NWS home page Climate Prediction Center Site Map News bookmarks with the new address. NOAA/ National Weather Service National Centers for Environmental Prediction Climate Prediction Center 5200 Auth Road Camp Springs, Maryland 20746 Page Author: Climate Prediction

ANALYTICAL METHOD FOR THE ABSORPTIOMETRIC DETERMINATION OF BORON IN MAGNESIUM METAL

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1963-01-01

Magnesium is dissolved in H/sub 2/SO/sub 4/ in the presence of CH/sub 3/ OH and B is separated by distillation as methyl borate. Rosocyanin is formed, separated from excess curcumin and dissolved in C/sub 2/H/sub 5/OH for absorptiometric measurement. (auth)

ANALYTICAL METHOD FOR THE ABSORPTIOMETRIC DETERMINATION OF BORON IN URANIUM METAL POWDER

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1963-01-01

The U powder is dissolved in HCl and H/sub 2/O/sub 2/. The resulting solution is evaporated to dryness in the presence of H/sub 2/SO/sub 3/. Rosocyanin is formed, separated from the excess curcumin, and dissolved in ethanol for absorptiometric measurement. (auth)

THE HAZARD OF CORPUSCULAR SOLAR RADIATION TO MANNED SPACEFLIGHT

DOE Office of Scientific and Technical Information (OSTI.GOV)

Waddington, C.J.

BS>The presently available data on the storms'' of solar particles are used to compute the radiation dose that would be received by astronauts shielded by different thicknesses of material. It is shown that at least some of these storms represent a severe hazard to successful manned spaceflights. (auth)

Radiocytogenetic effects on bone marrow cells of opossum in vivo

DOE Office of Scientific and Technical Information (OSTI.GOV)

Prasad, N.; Bushong, S.C.; MacIntyre, R.S.

1973-03-01

Bone marrow cells of the opossum, Didelphis virginiana, were examined 24 hr following a whole-body /sup 60/Co radiation dosc of 100, and the chromosomal aberrations resulted in a radiation sensitivity of 0.000605 aberrations/cell/rad/ sup 2/ for single-hit and multihit type damage respectively. (auth)

THE FIXATION OF RADIOPOTASSIUM IN AUTO- AND HOMOGRAFTS OF SKIN IN THE RAT (in Italian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Scortecci, V.

1962-09-01

The potassium fixation of auto- and homografts of skin in the rat was studied using K/sup 42/. A slightly higher uptake of K was observed in the autograft than in the homograft as early as the 4th day after grafting. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Boegh, P.; Hopkirk, R.; Junod, A.

From international nuclear industries fair; Basel, Switzerland (16 Oct 1972). The extensive environmental studies performed in Switzerland for the cooling towers of the Kaiseraugst and Leibstadt Nuclear Power Plants are presented. The computer program SAUNA for the calculation of the cooling tower plume behavior is briefly described. The main results of the environmental studies are summarized. (8 references) (auth)

Antiproton--neutron bound state

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ju, I.; Tomozawa, Y.

1972-08-01

The possibility of an antiproton-neutron bound state for explaining a narrow peak which was found recently in the experiment p + n yields 4 pi and 6 pi is discussed. It is pointed out that the state is likely to be a /sup 1/P/ sub 1/ state or a higher angular momentum state. (auth)

Valve for cryogenic service

DOEpatents

Worwetz, H.A.

1975-09-02

This patent relates to a valve for use with a liquefied gas at cryogenic temperatures in which a pair of joined knife edges are bellows controlled to contact an indium alloy seat in an annular slot when flow is to be stopped. The sealing alloy may be renewed by heating in situ. (auth)

THE STAL DOUBLE-ROTATION RADIAL FLOW STEAM TURBO-GENERATOR

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1959-06-01

The principles of operation, constructional features and the advantages that are claimed for the doublerotation radial flow type over the axial flow type are described, as well as its developments to meet both the requirements of very large outputs and the special needs of nuclear power stations. (auth)

THE EFFECTS OF CHLORAMPHENICOL, STREPTOMYCIN, AND PENICILLIN ON THE INDUCTION OF MUTATIONS BY X-RAYS IN DROSOPHILA MELANOGASTER

DOE Office of Scientific and Technical Information (OSTI.GOV)

Clark, A.M.

The injection of chloramphenicol, streptomycin, or penicillin into Drosophila males just before exposure to x irradiation caused a reduction in the yield of sex linked recessive lethal mutations. The effect appears to be primarily on spermatids and possibly spermatocytes. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Isikara, A.M.

The dependence of the amplitude of the lunar daily geomagnetic variation on sunspot number and magnetic activity is investigated using data from Istanbul for the years 1952 to 1968. Annual and seasonal values of the amplitudes of the lunar semi-diurnal variation are determined, and compared with sunspot number and magnetic activity using partial correlation techniques. (auth)

Visual sensations induced by Cherenkov radiation

DOE Office of Scientific and Technical Information (OSTI.GOV)

McNulty, P.J.; Pease, V.P.; Bond, V.P.

1975-08-01

Pulses of relativistic singly charged particles entering the eyeball induce a variety of visual phenomena by means of Cerenkov radiation generated during their passage through the vitreous. These phenomena are similar in appearance to many of the visual sensations experienced by Apollo astronauts exposed to the cosmic rays in deep space. (auth)

Recalculation of the Critical Size and Multiplication Constant of a Homogeneous UO{sub 2}-D{sub 2}O Mixtures

DOE R&D Accomplishments Database

Wigner, E. P.; Weinberg, A. M.; Stephenson, J.

1944-02-11

The multiplication constant and optimal concentration of a slurry pile is recalculated on the basis of Mitchell's experiments on resonance absorption. The smallest chain reacting unit contains 45 to 55 m{sup 3}of d{sub 2}O. (auth).

Recalculation of the Critical Size and Multiplication Constant of a Homogeneous UO{sub 2} - D{sub 2}O Mixtures

DOE R&D Accomplishments Database

Wigner, E. P.; Weinberg, A. M.; Stephenson, J.

1944-02-11

The multiplication constant and optimal concentration of a slurry pile is recalculated on the basis of Mitchell`s experiments on resonance absorption. The smallest chain reacting unit contains 45 to 55 m{sup 3}of D{sub 2}O. (auth)

Possibility of the amplification of the radiation at the wave length lambda = 1776 A in recombining plasma (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gudzenko, L.I.; Evstigneev, V.V.; Yakovlenko, S.I.

1973-09-01

A calculation is made of the characteristics of the amplification of the radiation in the vaccum ultraviolet spectral range in the 2s-2p transition of Be ions in supercooled (intensely recombining) dense Be plasma. (tr-auth)

The Absolute Measurement of Beta Activities; SOBRE LA MEDIDA ABSOLUTA DE ACTIVIDADES BETA

DOE Office of Scientific and Technical Information (OSTI.GOV)

Del Rio, C.S.; Reynaldo, O.J.; Mayquez, E.R.

1956-01-01

A new method for the absolute beta counting of solid samples is given. The measurements are made with an inside Geiger-Muller tube of new construction. The backscattering correction, when using an "infinite" thick mounting, is discussed and results for different materials given. (auth)

Considerations on the Analytical Control of Sulfur Traces in Uranium Metal; CONSIDERACIONES SOBRE EL CONTROL ANALITICO DE TRAZAS DE AZUFRE (SULFURO) EN URANIO METAL

DOE Office of Scientific and Technical Information (OSTI.GOV)

Cellini, R.F.; Sanchez, L.G.

1956-01-01

Volumetric and colorimetric determinations of sulfur in uranium were carried out by acid treatment and evaluation of SH/sup 2/. According to the experimental results a discussion of both methods was made. (auth)

Observations of narrow microburst trains in the geomagnetic storm of August 4-6, 1972

DOE Office of Scientific and Technical Information (OSTI.GOV)

Brown, R.R.

1973-04-01

In the intense geomagnetic disturbances of early August 1972, auroral zone microburst trains were observed at balloon altitude and found to be significantly narrower in burst width and spacing than microbursts found previously at the same site. These observations suggest that the spacing of microburst peaks, as well as their width, is related to variations in the power spectrum of a magnetospheric acceleration process rather than the bounce motions of electrons in the geomagnetic field or the modulation of electron precipitation by drift waves in magnetospheric plasma. In the geomagnetic activity that followed the solar flares in early August 1972,more » intense fluxes of auroral x rays were encountered during balloon flights launched from College, Alaska. Although much of the time variations of the x-ray fluxes observed during these flights represented known features of electron precipitation at auroral latitudes, one new and distinct feature was evident. In particular, it was found that the widths and spacings of auroral zone microbursts (Anderson and Milton, 1964) on this occasion were significantly smaller than those observed previously on many balloon flights from the same site. Thus, instead of microburst trains with widths at half-intensity points of ~0.2 sec and spacings of ~0.6 sec, the majority of the microbursts encountered on two flights from College had widths of ~0.1 sec and spacings of ~0.4 sec. (auth)« less

ESTIMATION OF RADIOACTIVE CALCIUM-45 BY LIQUID SCINTILLATION COUNTING

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lutwak, L.

1959-03-01

A liquid sclntillation counting method is developed for determining radioactive calcium-45 in biological materials. The calcium-45 is extracted, concentrated, and dissolved in absolute ethyl alcohol to which is added 0.4% diphenyloxazol in toluene. Counting efficiency is about 65 percent with standard deviation of the J-57 engin 7.36 percent. (auth)

PROBLEMS OF RADIOLOGICAL PROTECTION IN FLAW DETECTION (in Polish)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Domanus, J.; Wolski, M.

1962-01-01

All industrial flaw detection laboratories are covered, with respect to their radiological protection, by the supervision of the Inst. of Electrotechnics. A discussion is given of the results of this action, especially the cases of exceeding the admissible doses. The analysis of endangerment by radiation of employees of flaw detection laboratories is given. (auth)

WORK SAFETY CONDITIONS WITH CLOSED RADIATION SOURCES (in Polish)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Brosziewicz, R.

1963-01-01

A discussion is presented of principles of radiological protection observed in the Radiation Chemistry Dept. of the Nuclear Research Inst., during operation of large sources of ionizing radiation. It has been revealed that a properly designed servicing system of these sources ensures full protection of personnel even with not fully protected sources. (auth)

Hotel Employees' Japanese Language Experiences: Implications and Suggestions.

ERIC Educational Resources Information Center

Makita-Discekici, Yasuko

1998-01-01

Analyzes the Japanese language learning experiences of 13 hotel employees in Guam. Results of the study present implications and suggestions for a Japanese language program for the hotel industry. The project began as a result of hotel employees frustrations when they were unable to communicate effectively with their Japanese guests. (Auth/JL)

CRITICAL EXPERIMENT TANK (CET) REACTOR HAZARDS SUMMARY

DOE Office of Scientific and Technical Information (OSTI.GOV)

Becar, N.J.; Kunze, J.F.; Pincock, G..D.

1961-03-31

The Critical Experiment Tank (CET) reactor assembly, the associated systems, and the Low Power Test Facility in which the reactor is to be operated are described. An evaluation and summary of the hazards associated with the operation of the CET reactor in the LPTF at the ldsho Test Station are also presented. (auth)

DETECTION OF $beta$ ACTIVITIES ON A THIN FILM CHROMATOGRAM WITH A GELATINIZED SCINTILLATOR (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Roucayrol, J.; Taillandier, P.

1963-05-27

In order to detect the BETA activities on a thin-film chromatogram, it is expedient to impregnate it with a gelatinized scintillator. The fluorescence photons are detected by a photomultiplier across a slit'' above which the glass support of the chromatogram is removed. (tr-auth)

Armor of cermet with metal therein increasing with depth

DOEpatents

Wilkins, M.L.; Holt, A.C.; Cline, C.F.; Foreschner, K.E.

1973-07-01

The system described consists of a ceramic matrix having a gradient of fine ductile metallic particles dispersed therein in an amount of from 0.0%, commencing at the front or impact surface of the armor, to about 2 to 15% by volume along the interface to the back of the system. (auth)

PERIVASCULAR EXTRAVASATION OF THORIUM DIOXIDE PREPARATION. TWENTY-ONE-YEAR FOLLOW-UP

DOE Office of Scientific and Technical Information (OSTI.GOV)

Germon, P.; Howard, J.M.; James, P.M.

The course of a patient is described with a 21-yr followup after the extravasation of ThO/sub 2/ preparation (Thorotrast) into the soft tissue of the arm. The resultant concentration of the Th in the spleen led repeatedly to the erroneous radiographic iuterpretation of splenic calcification. (auth)

Electron multiplier-ion detector system

DOEpatents

Dietz, L.A.

1975-08-01

This patent relates to an improved ion detector for use in mass spectrometers for pulse counting signal ions which may have a positive or a negative charge. The invention combines a novel electron multiplier with a scintillator type of ion detector. It is a high vacuum, high voltage device intended for use in ion microprobe mass spectrometers. (auth)

APPLICATION OF THE CLASSICAL SELFCORRELATION FUNCTION TO DETERMINE THE SLOW NEUTRON SCATTERING CROSS-SECTION OF FREE MOLECULES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Parlinski, K.

1962-06-01

A classical selfcorrelation function is found for an atom in the molecule by considering the translation of the free molecule, its rotation and oscillation. The Krieger-Nelkin formula for the differential cross section of incoherent neutron scattering by molecules is derived from the correlation. (auth)

Diets of black-tailed hares on the Hanford Reservation

DOE Office of Scientific and Technical Information (OSTI.GOV)

Uresk, D.W.; Cline, J.F.; Rickard, W.H.

1975-04-01

A fecal pellet analyses showed that black-tailed hares (jackrabbits) were selective in plants chosen as food. The most abundant herbaceous plant, cheatgrass, was not found in the pellets. Sagebrush and bitterbrush, woody plants, were not an important part of the hares' diet. Forbs, rabbitbrush, and certain grass species were preferred foods. (auth)

International and Immigrant Students in Community Colleges: Who They Are and How To Help Them.

ERIC Educational Resources Information Center

Peterman, Dana

2003-01-01

Provides resources to help counselors assess, understand, and provide appropriate services for international and immigrant student populations in community colleges. States that, because there is so much variation among the population, the adjustment process is difficult and requires administrative intervention. (Contains 11 citations.) (AUTH/NB)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Barnett, C.F.; Gauster, W.B.; Ray, J.A.

A graphical compilation is presented of atomic and molecular cross sections of interest to controlled thermonuclear research. The cross sections are shown, as a function of energy, for collision processes involving molecular ion dissociation, charge exchange, excitation, ionization, photoionization, scattering, energy loss, and recombination. Pertinent nuclear cross sections are also included. A bibliography is given covering the literature since 1950. (auth)

A Short Take on Protecting Lear in a Storm.

ERIC Educational Resources Information Center

Elliot, Cynthia

2001-01-01

Recounts author's experience in teaching 'King Lear' to her community college students. States that many students denounced Shakespeare's work as having little relevance to contemporary society. Argues that the author's plays and poems are relevant and timeless, and that one should "reason not the need" for reading his work. (AUTH/NB)

EFFECTS OF HEAVY WATER ON THE DEVELOPMENT OF POLIO VIRUS AS A FUNCTION OF TEMPERATURE (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lwoff, A.; Lwoff, M.

1960-12-19

Heavy water medifies the speed of development and the infectious particle yield of the polio virus. These two effects are dependent on four factors: the temperature, the heavy water concentration, the moment when it is used, and the genotype of the virus stock. (tr-auth)

Identification of sulphur volatiles and GC-olfactometry aroma profiling in two fresh tomato cultivars

USDA-ARS?s Scientific Manuscript database

Ten sulphur volatiles were observed in two Florida tomato cultivars (‘Tasti-Lee’ and ‘FL 47’) harvested at three maturity stages (breaker, turning, and pink) using gas chromatography with a pulsed flame photometric detector (GC-PFPD). Eight PFPD peaks were identified using retention values from auth...

RADIOISOTOPES IN MEDICINE AND HUMAN PHYSIOLOGY. A Selected List of References

DOE Office of Scientific and Technical Information (OSTI.GOV)

McCormick, J.A. comp.

1958-08-01

This bibliography contains 2862 references on uses of radioisotopes in diagnostic medicine, therapeutic medicine, clinical research, human physiology, general medical research, and immunology. The references were taken from the 1948 to 1956 open literature. A list of the journals from which the references were selected and an author index are included. (auth)'

ON THE SO-CALLED LATE OR THERAPEUTICAL RADIONECROSIS (in Italian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Piemonte, M.

1960-01-01

Anatomical and clinical characteristics of the alteration known as late or therapeutical necrosis are reviewed and the most characteristical aspects of this alteration in various anatomical sites are discussed. Radionecroses of the tongue, of the palate, of the skin, of the uterus cervix, of the vulva, and of the penis are illustrated. (auth)

THE CREEP BEHAVIOUR OF THE MAGNESIUM-ZIRCONIUM ALLOY ZA AT 400 AND 450 C IN CARBON DIOXIDE CONTAINING /approximately equals/200 PPM MOISTURE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kent, R.P.; Wells, T.C.

1963-03-01

The creep behavior of the magnesium-zirconium alloy ZA was studied in tests of up to 5600 hr duration at 400 deg C and up to 12 600 hr duration at 450 deg C, in an atmosphere of carbon dioxide containing approximately 200 ppm water. The accompanying microstructural changes were observed by optical and electron microscopy. The alloy is stronger at 450 deg C than at 400 deg C and additional strengthening obtains from prestraining at 250 deg C prior to creep-testing. In stress rupture tests at 200 deg C subsequent to creep-testing, the time to rupture and the rupture ductilitymore » are lower in specimens previously tested at 450 deg C than in those tested at 400 deg C. The increase in creep strength at 450 deg C, and subsequent loss of ductility, are attributed principally to the precipitation of a zirconium-rich phase, tentatively identified as epsilon - zirconium hydride, which forms both intragranularly (as ribbons and thin hexagonal plates) and as intergranular particles. (auth)« less

DEVELOPMENT OF DIES FOR EXTRUSION OF COMPLEX SHAPES OF STEEL AND REFRACTORY ALLOYS. Interim Technical Documentary Progress Report to Aeronautical Systems Division for the Period September 16,1962 through December 31, 1962

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hunt, J.G.; Jenkins, R.G.; White, A.M.

1963-03-01

A number of ceramics, metallic compounds, and ceramic-metal composites were successfully hot pressed into the shape of die inserts. Steels were extruded through several of these for the purpose of evaluating the materials or to study methods of supporting the die inserts. Refractory metal inserts were also used in similar tests. Hot pressed inserts consisting of 80 vo1% Al/sub 2/O/ sub 3/--10 vol% W and 80 vol% ThO/sub 2/--10 vol% W cracked but did not erode. Sintered molybdenum inserts flowed excessively, whereas sintered tungsten inserts flowed to a lesser degree. A hard die casing with a slight shrink fit appearsmore » to be the most satisfactory method of support. (auth)« less

THE TREATMENT OF CHILDRENS' HEMANGIOMA AND NEVUS FLAMMEUS WITH Sr$sup 90$ AND Y$sup 9$$sup 0$ (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lossl, H.; Jakob, A.

The authors report the excellent results obtained in the radiotherapy of the hemangioma of the child and of the nevus flammeus by means of strontium-90 and yttrium-90. The method is preferred to others as it reduces the charge of rays on the growing skeleton of the child ami on the gonads. In case of smaller lesions the application of strontium-90 (total dose 3000 to 5000 rep) and surface irradiation by means of yttrium-90 foils (total dose 3000 to 4000 rep) produce good results. The single dose should be around 1OOO rep. The dosage has to be fixed according to themore » erythema which appears with medium intensity. To judge from the gathered experiences the results of this therapy are equivalent to those of radium treatment or Chaoul's close irradiation. (auth)« less

MULTIPLE CARCINOMATOUS GROWTHS AND SKIN SARCOMA IN A PATIENT WITH CHRONIC ROENTGEN-RAY DERMATOSIS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kuta, A.

A case of an extensive chronic roentgen-ray dermatosis on the face of a 68 year old man is reported which developed approximately thirty years after x- ray treatment for sycosis barbae and eczema on the hands. Both fore-arms were amputated six and fourteen years after radiation therapy because of severe destructive lesions. Within the area of this late chronic roentgen-ray dermatosis on the face (forehead, nose, eyelids) gradually eight malignant tumors developed, i.e., four spinocellulars carcinomas, three basalcell carcinomas, and one polymorphocellular sarcoma. All of the tumors, including polymorphocellulars sarcoma, were sparingly excised with optimum therapeutic and cosmetic results andmore » the patient has now for more than two years shown no signs of relapse. There is only an atypic flat spinocellular lesion on the right ala nasi which is uncertain. (auth)« less

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bustraan, M.; Coehoorn, J.; Veenema, J.J.

This report is a collection of separate contributions on some aspects of the work done on STEK up to February 1970. A description is given of STEK together with the philosophy of its design, i.e. integral measurements of fission product cross sections by a sample oscillator technique in fast reactor spectra. The influences fission products may have on fast breeder reactors are briefly demonstrated by an example. A description of the facility and of the sample oscillator and sample exchange mechanism is given. Some preliminary results of measurements of reactor parameters and the neutron spectrum in the first fast zonemore » in STEK are given. For the use of lead as material for the buffer an argumentation is given. The proposed program for the measurements of the integral fission product cross sections is outlined. The procurement of some, highly active, samples of actual fission products is briefly sketched. (auth)« less

THE PREPARATION, PROPERTIES, AND USES OF AMERICIUM-241, ALPHA-, GAMMA-, AND NEUTRON SOURCES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Strain, J.E.; Leddicotte, G.W.

1962-09-01

A study was made of the preparation of alpha, gamma, and neutron sources using the long-lived radioisotope of americium, Am/sup 241/. Americium-241 is an artificiallyproduced radioelement which has a half-life of 462 plus or minus 10 years and decays to Np/sup 237/ by alpha emission followed by low-energy gamma emission. The high specific activity of americium-241 (7.0 x 10/sup 9/ d/m/mg) combined with its reasonably long half-life makes it ideally sulted for the preparation of radioactive sources. The chemical and physical properties of Am/ sup 241/ and the physical manipulations involved in fabricating alpha, gamma, and neutron sources are generallymore » described in this report. Uses for each type of source are discussed and data are presented to indicate the respective properties and usefulness of each source type. (auth)« less

Endotoxin as a cause of aseptic meningitis after radionuclide cisternography

DOE Office of Scientific and Technical Information (OSTI.GOV)

Cooper, J.F.; Harbert, J.C.

1975-09-01

The role of pyrogens in aseptic meningitis after radionuclide cisternography was studied by means of the Limulus test, a sensitive detector of endotoxin. During a 15-month period, 39 reactions associated with cisternography were reported. Ten samples of specific lots of the radioactive drugs implicated in 20 of these reactions were tested and all reacted strongly positive to the Limulus test. The less sensitive rabbit pyrogen test was negative for these preparations when tested on a dose-per-weight basis. Our findings apparently provide clinical evidence for the observation made in animals that endotoxin is at least 1,000 times more toxic intrathecally thanmore » intravenously. The data implicate endotoxin contamination as a cause of adverse reactions to radionuclide cisternography. We conclude that the USP pyrogen test is insufficiently sensitive for intrathecal injectables and should be supplemented by the Limulus test. (auth)« less

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kirchner, F.; Benninghoven, A.

Investigations on the applicability of double-focusing counter-tube mass spectrometers with iodine vapor counters for determination of mass spectra and trace analysis are reported. An ionizing electron current of several 10/sup -10/ amp is generally sufficient for taking normal mass spectra with counter tube and recorder. The effect of the iodine vapor can be kept so low through simple cutin of a condenser cooled with liquid air that the 127 mass of the iodine atom is scarcely noticeable. In the determination of the minimum gas mass that could be detected and quantitatively measured, it was surprisingly proved that in the usemore » of He as the test gas in the unheated mass spectrometer at a gas pressure of 5 x 10/sup -6/ Torr of the residual gas, there is a perturbation maximum at mass 4. This could significantly affect the sensitivity of helium detection. (tr-auth)« less

UNIT OPERATIONS SECTION MONTHLY PROGRESS REPORT, OCTOBER 1961

DOE Office of Scientific and Technical Information (OSTI.GOV)

Whatley, M.E.; Haas, P.A.; Horton, R.W.

1962-04-01

Additional runs were made in the 6-in.-dia. separation column. The kinetics of the methane --copper oxide reaction was investigated in deep bed tests. The work on the development of the shear included a satisfactory method of ng, preliminary test of an outer gag faced with rubber, and a metallic inner gsg contoured to the shape of a sheared assembly. The mechanical dejacketing of the SRE Core I fuel, NaK-bonded, stainless steel-clad uranium slugs, was successfully completed. The effective therrnal conductivity of a packed bed of 0.023-in. steel shot was approximately 0.33 Btu/hr- deg Fft at 200 deg F. Flow capacitymore » for the compound extraction scrub column equipped with sieve plates (0.125-in.-dia. was determined. Average waste calcination rates for Purex were higher by a factor of 1.5 to 2.0 than rates for TBP-25. (auth)« less

THE LARGE HIGH PRESSURE ARC PLASMA GENERATOR: A FACILITY FOR SIMULATING MISSLE AND SATELLITE RE-ENTRY. Research Report 56

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rose, P.; Powers, W.; Hritzay, D.

1959-06-01

The development of an arc wind tunnel capable of stagnation pressures in the excess of twenty atmospheres and using as much as fifteen megawatts of electrical power is described. The calibration of this facility shows that it is capable of reproducing the aerodynamic environment encountered by vehicles flying at velocities as great as satellite velocity. Its use as a missile re-entry material test facility is described. The large power capacity of this facility allows one to make material tests on specimens of size sufficient to be useful for material development yet at realistic energy and Reynolds number values. By themore » addition of a high-capacity vacuum system, this facility can be used to produce the low density, high Mach number environment needed for simulating satellite re-entry, as well as hypersonic flight at extreme altitudes. (auth)« less

SAFEGUARDS REPORT FOR THE NORTHROP PULSE RADIATION FACILITY

DOE Office of Scientific and Technical Information (OSTI.GOV)

Feinauer, E.; Thomas, R.D.

1961-03-22

Ae description is given of the Northrop pulse Radiation Facility, (NPRF), which consists of a TRlGA Mark-F reactor and associated supporting equipment. The NPRF was designed to operate in the following modes: Mode 1-100 kw steady-state operation; Mode II--Pulsed operation up to a maximum transient giving a maximum measured fuel element temperature of 470 deg C, which corresponds to an energy release of about 18 Mw-sec (approximately 1.9% sigma K/ K). The movable reactor will be operated in three general areas in the pool: adjacent to the exposure room; adjacent to the beam ponts; or at intermediate positions. Based onmore » the analyses presented and operating experience with the prototype TRIGA Mark F and other TRlGA reactors, it is concluded that operation of the NPRF does not present any undue hazard to the health and safety of the operating personnel or the public. (auth)« less

Standard interface files and procedures for reactor physics codes, version III

DOE Office of Scientific and Technical Information (OSTI.GOV)

Carmichael, B.M.

Standards and procedures for promoting the exchange of reactor physics codes are updated to Version-III status. Standards covering program structure, interface files, file handling subroutines, and card input format are included. The implementation status of the standards in codes and the extension of the standards to new code areas are summarized. (15 references) (auth)

PLUTONIUM AND ITS METALLURGY. A STAGE IN ITS DEVELOPMENT: THE INTERNATIONAL CONFERENCE ON THE METALLURGY OF PLUTONIUM (GRENOBLE, APRIL 1960) (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Grison, E.

1961-01-01

A discussion is given on physical properties of plutonium, allotropic variations; kinetics of transformation; electrica; and magnetic properties; and electronic structure of the external layers of the atom. Plutonium can be used only as nuclear fuel; it is very expensive and toxic. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Levenson, S.M.; Warren, R.D.; Richman, S.D.

The potentially fatal interstitial pneumonia of Pneumocystis carinii is a frequent opportunistic invader of patients treated for malignancy with immunosuppressive and cytotoxic agents. Generalized Ga-67 pulmonary localization which is markedly disproportionate to the clinical and radiographic findings has led to earlier diagnoses by open lung biopsy in this setting. The potential usefulness of gallium scintigraphy in patients with suspected P. carinii pneumonia is presented. (auth)

Problem of the Optical Model for Deuterons; ZAGADNIENIA MODELU OPTYCZNEGO DLA DEUTERONOW

DOE Office of Scientific and Technical Information (OSTI.GOV)

Grotowski, K.

1963-01-01

Problems concerning parameters of the optical potential for deuterons are presented. Total cross-sections for the interaction of deuterons with nuclei were determined by the evaluation of the cross-sections for the emission of charged particles and neutrons. The angular distributions for the elastic scattering of deuterons were also measured, 47 references. (auth)

TUNGSTEN INTERFERENCE IN VOLUMETRIC ANALYSIS OF URANIUM

DOE Office of Scientific and Technical Information (OSTI.GOV)

Dufour, R.F.; Articolo, O.

1958-08-01

Tungsten was found to have a negligible effect on the determination of uranium in uranium-zirconium alloys by the Jones reductor-dichromate method used at KAPL. The tungstate ion interferred seriously and gave high results. However, the soluble tungsten was precipitated by intensive fuming with sulfuric acid and rendered ineffective in tbe subsequent oxidationreduction reactions of the uranium. (auth)

Irradiated boll weevils: pheromone production determined by GLC analysis

DOE Office of Scientific and Technical Information (OSTI.GOV)

McGovern, W.L.; McKibben, G.H.; Gueldner, R.C.

1975-08-15

The production of pheromone by Anthonomus grandis Boheman when treated with 10,000 rad of $sup 60$Co gamma irradiation compared favorably with that of control weevils for 5 days; however, feeding (determined by frass collection) was reduced from day one. No direct correlation was found between production of pheromone and elimination of frass. (auth)

THE TOTAL SCATTERING CROSS-SECTION OF SLOW NEUTRONS IN GASEOUS H$sub 2$S

DOE Office of Scientific and Technical Information (OSTI.GOV)

Tubbs, N.; Sagan, U.; Rzany, H.

1962-07-01

In view of the difference between Heinloth's measured values for the neutron cross-sections of protons in water vapor and those predicted by the Krieger-Nelkin theory, measurements with gaseous H/sub 2/S were made. Results for this similar molecule show a smaller divergence from the theoretical values. (auth)

Optics of a Double Focussing Magnetic Sector by Fringe Effect; OPTIQUE D'UN SECTEUR MAGNETIQUE A DOUBLE FOCALISATION PAR EFFET DE FRANCES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Krafft, J.

1960-01-01

A general study is made of the optical elements of a double-fccusing magnetic sector by the fringe effect, with a view to its application to the monochromation of the proton, deuteron, or triton beam of the 1.4 Mev accelerator. (auth)

Electrolytic dissolver

DOEpatents

Wheelwright, E.J.; Fox, R.D.

1975-08-26

This patent related to an electrolytic dissolver wherein dissolution occurs by solution contact including a vessel of electrically insulative material, a fixed first electrode, a movable second electrode, means for insulating the electrodes from the material to be dissolved while permitting a free flow of electrolyte therebetween, means for passing a direct current between the electrodes and means for circulating electrolyte through the dissolver. (auth)

LATENT IMAGE FADING IN DOSIMETER FILM EMULSIONS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Musialowicz, T.; Wysopolski, J.

Latent image fading in film emulsions produced by Foton for dosimeter purposes is investigated with regard to the influence of time. The decrease of density caused by latent image fading in normal conditions of storing and relative humidity of 50 to 80% does not exceed 10% during a year. This corresponds to the dose reading error up to 20%. (auth)

MOLECULAR STRUCTURAL FACTORS IN COMPETITIVE INHIBITION OF SUGAR TRANSPORT

DOE Office of Scientific and Technical Information (OSTI.GOV)

LeFevre, P.G.

1959-07-10

The high potency of phloretin as a competitive inhibitor of the human red cell's monosaccharide transport system is not shared by any of several molecular fragments of phloretin, but is duplicated in certain artificial estrogens resembling phloretin in respect to the spacing between terminal phenolic---OH groups. Related molecules which are slightly less extendible are comparatively inactive. (auth)

PREIRRADIATION MEASUREMENTS OF PIQUA FUEL ELEMENTS NO. P-1111, P-1113, P- 1114, AND P-1120

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hubbell, H.J.

1962-11-01

Results of preirradiation measurements and tests performed during the processing and assembly of the individual fuel cylinders contained in Piqua Fuel Elements No. P-1111, P-1113, P-1114, and P-1120 are presented. A description of the techniques and equipment used in obtaining the data is also included. (auth)

Qualification of submerged-arc narrow strip cladding process

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ayres, P.S.; Gottschling, J.D.; Jeffers, G.K.

1975-08-01

An unique narrow strip cladding process for use on both plate and forging material for nuclear components was developed. The qualification testing of this low-heat input process for cladding nuclear components, including those of SA508 Class 2 material is described. The theory that explains the acceptable results of these tests is also given. (auth)

SEPARATION OF THORIUM FROM RARE EARTHS WITH TANNIN (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Vlodavets, N.I.

1959-03-01

Thorium is quantitatively precipitated with tannin in a 0.005 N solution of nitric or hydrochloric acid. This permits its separation from trivalent rare earths, which are not precipitated with tannin in such relatively weak acid solutions. The accuracy of the determinations is as usual at the gravimetric determinations of macroquantities of elements. (auth)

KINETICS OF LOW SOURCE REACTOR STARTUPS. PART I

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hurwitz, H. Jr.; MacMillan, D.B.; Smith, J.H.

1962-06-01

Statistical fluctuntions of neutron populations in reactors are analyzed by means of an approximate theoretical model. Development of the model is given in detail; also included are extensive numerical results derived from its application to systems with time-dependent reactivity, namely, a reactor during start-up. The special relationships of fluctuations to safety considerations are discussed. (auth)

KINETICS OF LOW SOURCE REACTOR STARTUPS. PART II

DOE Office of Scientific and Technical Information (OSTI.GOV)

hurwitz, H. Jr.; MacMillan, D.B.; Smith, J.H.

1962-06-01

A computational technique is described for computation of the probability distribution of power level for a low source reactor startup. The technique uses a mathematical model, for the time-dependent probability distribution of neutron and precursor concentration, having finite neutron lifetime, one group of delayed neutron precursors, and no spatial dependence. Results obtained by the technique are given. (auth)

Radioisotopic heat source

DOEpatents

Jones, G.J.; Selle, J.E.; Teaney, P.E.

1975-09-30

Disclosed is a radioisotopic heat source and method for a long life electrical generator. The source includes plutonium dioxide shards and yttrium or hafnium in a container of tantalum-tungsten-hafnium alloy, all being in a nickel alloy outer container, and subjected to heat treatment of from about 1570$sup 0$F to about 1720$sup 0$F for about one h. (auth)

THE INTERACTION MEAN FREE PATH OF PROTONS AT 3 Tev

DOE Office of Scientific and Technical Information (OSTI.GOV)

Day, G.; Gauld, C.F.; McCusker, C.B.A.

1963-02-16

The mean free path ( F ) of singly charged primary particles in the energy region of 3 Tev is determined using a maximum-likelihood technique. With all events taken into account a value of F = 22 cm is obtained. Considering only those events with a potential path greater than 20 cm, F becomes 27 cm. (auth)

Self-consistent Models of Strong Interaction with Chiral Symmetry

DOE R&D Accomplishments Database

Nambu, Y.; Pascual, P.

1963-04-01

Some simple models of (renormalizable) meson-nucleon interaction are examined in which the nucleon mass is entirely due to interaction and the chiral ( gamma {sub 5}) symmetry is "broken'' to become a hidden symmetry. It is found that such a scheme is possible provided that a vector meson is introduced as an elementary field. (auth)

Coaxial short pulsed laser

DOEpatents

Nelson, M.A.; Davies, T.J.

1975-08-01

This invention relates to a laser system of rugged design suitable for use in a field environment. The laser itself is of coaxial design with a solid potting material filling the space between components. A reservoir is employed to provide a gas lasing medium between an electrode pair, each of which is connected to one of the coaxial conductors. (auth)

Method of forming high density oxide pellets by hot pressing at 50$sup 0$ to 100$sup 0$C above the cubic to monoclinic phase transformation temperature

DOEpatents

Pasto, A.E.

1975-08-01

A process for low temperature sintering of rare earth and actinide oxides which have a cubic to monoclinic transformation is described. The process involves hot pressing a powder compact at a temperature just above the transformation temperature. (auth)

QUANTITATION OF MENSTRUAL BLOOD LOSS: A RADIOACTIVE METHOD UTILIZING A COUNTING DOME

DOE Office of Scientific and Technical Information (OSTI.GOV)

Tauxe, W.N.

A description has been given of a simple, accurate tech nique for the quantitation of menstrual blood loss, involving the determination of a three- dimensional isosensitivity curve and the fashioning of a lucite dome with cover to fit these specifications. Ten normal subjects lost no more than 50 ml each per menstrual period. (auth)

SOME ASPECTS OF RECENT FINDINGS PERTAINING TO THE BODY COMPOSITION OF ATHLETES, OBESE INDIVIDUALS AND PATIENTS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Behnke, A.R.; Taylor, W.L.

Whole-body density determinations are reported for a small group of athletes (weight lifters), and an analysis is presented of data derived from several investigations in which similar techniques were employed to measure total body water and the total exchangeable sodium, chloride (bromine space), and potassium in the body. The mean value for body density (1.080) obtained on the athletes was similar to that obtained previously on professional football players and much higher than the mean value usually obtained on young men (-- 1.060). In addition to the low body fat content characteristic of the athletes, the ratio of excha&eable K/submore » e/ to Cl/sub e/ was higher in these men than in men of average physique. In turn, the values for K/sub e/Cl/sub e/ were even lower in obese individuals and in patients. In healthy individuals, the sum (K/sub e/ + Cl/sub e/) is highly correlated (r = 0.99) with total body water, and this finding provides an independent estimate of lean body weight. In patients afflicted with certain types of chronic diseases, particularly those associated with the edematous state, the exchangeable Na/sub e/ to K/sub e/ ratio is strikingly higher than it is in healthy individuals. Estimates of the amount of transudate in edematous patients may be made from analyses of total body water andd total exchangeable Na/sub e/ and K/sub e/. Additional determinations, such as whole body density and red cell mass, are required to assess accurately the size of the lean body mass in these patients. Normal adult lean body size prior to illness may be estimated from skeletal measurements. (auth)« less

EFFECT OF CORRELATIONS ON THE TRANSPORT COEFFICIENTS OF A PLASMA (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Balescu, R.; de Gottal, Ph.

1961-01-01

A closed formula is obtained for the long-lived corre1ations in an inhomogeneous plasma; it is expressed in terms of the one particle distribution function. This forms an appropriate starting point for a rigorous theory of transport phenomena in plasmas, including the effect of molecular corrclations. An expressson is obtained for the thermal conductivity. (auth)

SLOW $pi$$sup +$-MESON CAPTURE BY LIGHT NUCLEI IN THE CORRELATIONAL NUCLEAR MODEL (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Shklyarevskii, G.M.

Absorption of slow pi /sup +/-mesons by light nuclei in the pi /sup +/ + A yields A' + 2p reaction is considered. It is shown that an investigation of the proton spectra permits one to study small range pair correlation between nuclear nucleons. Conditions in which the corresponding experiments should be carried out are indicated. (auth)

SYMPLECTIC INVARIANTS AND FLOWERS' CLASSIFICATION OF SHELL MODEL STATES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Helmers, K.

1961-01-01

Flowers has given a classification of shell model states in j-j coupling for a fixed number of nucleons in a shell with respect to a symplectic group. The relation between these classifications for the various nucleon numbers is studied and is found to be governed by another symplectic group, the transformations of which in general change the nucleon number. (auth)

Standards in nuclear science and technology. A bibliography

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1973-09-01

Abstracts of 1803 U. S. and non-U. S. publications concerning a broad range of standards used in nuclear science and technology are included. The publication dates span the period 1962 through 1972, inclusive. Abstracts are arranged chronologically within four categories entitled Reactors and Engineering, Instruments and Calibration, Radiation and Radiation Protection, and Miscellaneous. A subject index is also included. (auth)

UFO: A THREE-DIMENSIONAL NEUTRON DIFFUSION CODE FOR THE IBM 704

DOE Office of Scientific and Technical Information (OSTI.GOV)

Auerbach, E.H.; Jewett, J.P.; Ketchum, M.A.

A description of UFO, a code for the solution of the fewgroup neutron diffusion equation in three-dimensional Cartesian coordinates on the IBM 704, is given. An accelerated Liebmann flux iteration scheme is used, and optimum parameters can be calculated by the code whenever they are required. The theory and operation of the program are discussed. (auth)

THE INFLUENCE OF ANTITUBERCULOUS VACCINATION ON THE COURSE OF THE TUBERCULOUS PROCESS IN CHRONIC IRRADIATION (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Khudushina, T.A.

1961-10-01

Preliminary antituberculosis vaccination of tuberculosisinfected rabbits subjected to protracted x irradiation (10 r daily) yields a positive effect only during the first stages of irradiation. Disturbance of specific antituberculous immunity occurs in the process of development of chronic radiation sickness. At this period the tuberculous process acquires a marked exudative-necrotic character. (auth)

DETERMINATION OF THE RANGE-ENERGY RELATION FOR NITROGEN AND OXYGEN IONS IN PHOTOGRAPHIC EMULSIONS (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Parfanovich, D.M.; Semchinova, A.M.; Flerov, G.N.

1957-08-01

The dependence of ramge on energy has been measured for N and O ions in E-1 Ilford emulsions for energies between 3 to 120 Mev. The results are compared with theoretical predictions. It is also estimated at what energy the N and O ions lose all their electrons on tranversal of matter. (tr-auth)

Hydrogen isotope separation from water

DOEpatents

Jensen, R.J.

1975-09-01

A process for separating tritium from tritium-containing water or deuterium enrichment from water is described. The process involves selective, laser-induced two-photon excitation and photodissociation of those water molecules containing deuterium or tritium followed by immediate reaction of the photodissociation products with a scavenger gas which does not substantially absorb the laser light. The reaction products are then separated from the undissociated water. (auth)

Heat exchanger with a removable tube section

DOEpatents

Wolowodiuk, W.; Anelli, J.

1975-07-29

A heat exchanger is described in which the tube sheet is secured against primary liquid pressure, but which allows for easy removal of the tube section. The tube section is supported by a flange which is secured by a number of shear blocks, each of which extends into a slot which is immovable with respect to the outer shell of the heat exchanger. (auth)

Studies on neutron activation analysis for the measurement of sodium in nails as a screening test for cystic fibrosis

DOE Office of Scientific and Technical Information (OSTI.GOV)

Savory, J.; Leitner, S.S.

1974-01-01

The present study points out the simplicity and ease of using fingernails and toenails to measure electrolyte levels as a test for cystic fibrosis. Procedures and various effects on the ranges of values for different categories of healthy and diseased subjects are discussed and the limitations of the method are indicated. (auth)

THE INDUCTION OF TUMORS IN THE RAT BY ASTATINE-211

DOE Office of Scientific and Technical Information (OSTI.GOV)

Durbin, P.W.; Asling, C.W. et al

1958-09-01

Exposure of rats to sublethal amounts of At/sup 211/ results in the early appearance of large numbers of mammary tumors, many of them malignant, and in the production of an altered functional state simulating menopause. It is evident that the tumor induction is not yet tested for its association with radiation exposure separately from the endocrine disturbance. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Shera, E.B.; Casper, K.J.

>A technique is described which allows the angular correlations of several radiations, each in cascade with one common gamma ray, to be determined simultaneously through the use of a multichannel analyzer. Normalization is provided by simultaneously recording both the singles and coincidence spectra using the subgrouping facilities of the analyzer. A subgroup programmer has been constructed which provides this capability while maintaining identical calibration for the two spectra. (auth)

THERAPY WITH P$sup 32$ IN POLYCYTHEMIA (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Waschulewski, H.; Dorffel, E.W.

1958-01-01

Therapy vdth P/sup 32/ is being used more and more in polycythemia vera rubra. There ls no generally valid dosage scheme. Body-weight, blood-pictare and general condition furnish centaln clues. At present, we administer about 0.08 mc/kg body-weight as initial dose adding later, if necessary, further quantities under careful control of the blood-picture. (auth)

Identification of irradiated mushrooms (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bugyaki, L.

1973-01-01

From international colloquium: the identification of irradiated foodstuffs; Karlsruhe, Germany (24 Oct 1973). Cuttings from non-irradiated mushrooms, when kept at normal or sub-zero temperatares, produce new hyphae in solld culture media even after slx days, thus proving that they are living. On the other hand, cultures from mushrooms irradiated with 250 krad never show any sign of cellular proliferation. (auth)

Biological implications of the adolescent growth process: body composition

DOE Office of Scientific and Technical Information (OSTI.GOV)

Forbes, G.B.

The adolescent growth curve for total-body potassium, as determined by potassium-40 counting, is described. Since this is a function of the lean body mass, this curve permits estimates of increments in body Ca and N contents. A new mathematical model is proposed in which the idolescent spurt is considered to be superimposed on a pre-adolescent growth pattern. (auth)

MEANS FOR PRODUCING PLUTONIUM CHAIN REACTIONS

DOEpatents

Wigner, E.P.; Weinberg, A.M.

1961-01-24

A neutronic reactor is described with an active portion capable of operating at an energy level of 0.5 to 1000 ev comprising discrete bodies of Pu/ sup 239/ disposed in a body of water which contains not more than 5 molecules of water to one atom of plutonium, the total amount of Pu/sup 239/ being sufficient to sustain a chain reaction. (auth)

Method for preparing thin-walled ceramic articles of configuration

DOEpatents

Holcombe, C.E.; Powell, G.L.

1975-11-01

A method for preparing a hollow thin-walled ceramic product is described. Ceramic powder is plasma-sprayed onto a concave surface of a substrate having a coefficient of thermal expansion less than that of the ceramic. The coated substrate is heated to sinter the ceramic and then cooled to effect a separation of the ceramic product from the substrate. (auth)

MULTIPLICATION OF DIFFERENT VIRUSES AND EVOLUTION OF VIRAL INFECTION IN CELLULAR CULTURES EXPOSED TO THE ACTION OF HEAVY WATER (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lavillaureix, J.; Reeb, E.; Surjus, A.

1961-03-20

The multiplication of West Nile, Coxsackie B3, and polio type II viruses is considerably increased if they are inoculated on cells cultivated in the presence of heavy water 5 hr before inoculation. The viral infection can not evolve in the presence of heavy water. (tr-auth)

Military Construction and Family Housing Program. Fiscal Year (FY) 2001 Budget Estimates

DTIC Science & Technology

2000-02-01

Department of the Air Force Military Construction and Family Housing Program Fiscal Year (FY) 2001 Budget Estimates Justification Data...Department of the Air Force Military Construction and Military Family Housing Program Summary Fiscal Year 2001 Appropriation Authorization Request... FISCAL YEAR 2001 (DOLLARS IN THOUSANDS) STATE/COUNTRY INSTALLATION TITLE APPROP REQUEST AUTH REQUEST PAGE INSIDE THE U.S. ALABAMA

DOE Office of Scientific and Technical Information (OSTI.GOV)

Joerissen, G.; Zuend, H.

From international nuclear industries fair; Basel, Switzerland (16 Oct 1972). The probability and the consequences of an aircraft crash on a nuclear power plant incorporating a light water reactor are estimated considering the probabilities of an aircraft strike, missile penetration through walls and damage of structures and systems important for safety. The estimated risks are presented in a Farmer diagram and compared with tolerable risk limits. (6 references) (auth)

ON SOME MATHEMATICAL PROBLEMS SUGGESTED BY BIOLOGICAL SCHEMES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Luehr, C.

1958-08-01

A simplified model of a population which reproduces asexually and is subject to random mututions implying improvement in chances of survival and procreation is treated by a numerical calculation. The behavior of such a system is then summarized by an analytical formula. The paper is intended as the first one of a series devoted to mathematical studies of simplified genetic situations. (auth)

Production and fabrication of 2500-lb Nb--Ti ingots to rod

DOE Office of Scientific and Technical Information (OSTI.GOV)

Cordier, T.E.; McDonald, W.K.

Interest in Nb--Ti superconducting devices is exploding. This paper outlines the critical production criteria for this material. Areas discussed include ingot blending, melting, forging, extrusion, and rod reducing with emphasis on the metallurgical considerations affecting mechanical properties. Data are included relating process parameters to TEM finding as well as R.T. ductility and optical microscopy. (auth)

TEMPEST II--A NEUTRON THERMALIZATION CODE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Shudde, R.H.; Dyer, J.

The TEMPEST II neutron thermalization code in Fortran for IBM 709 or 7090 calculates thermal neutron flux spectra based upon the Wigner-Wilkins equation, the Wilkins equation, or the Maxwellian distribution. When a neutron spectrum is obtained, TEMPEST II provides microscopic and macroscopic cross section averages over that spectrum. Equations used by the code and sample input and output data are given. (auth)

FACTORS AFFECTING THE DISSIPATION OF WINDSCALE RADIOACTIVE EFFLUENT IN THE IRISH SEA

DOE Office of Scientific and Technical Information (OSTI.GOV)

Shaw, A.E.; Charlesworth, F.R.

1952-02-20

diffusion, and residual currents was orginally assessed by Seligman and Scott in 1948. Further experimental work is described which has enabled a new assessment to be made. This work has included a measurement of the initial dilution of fresh water from the pipe line, and a study of the movement of water as indicated by drift bottles. lt is now envisaged that initial dilution, by a factor of 10, will be followed by eddy diffusion with the coefficients as measured by Seligman, and bulk movement primarily due to the force of the wind. Exceptions will occur when defined calm conditionsmore » exist. The discharged effluent will then tend to float on the surface with an initial dilution factor of only a few hundred and successive tidal releases will pour into the diffusing remains of the previous activity, there being no indications of residual currents. No work has been done to see if this more concentrated effluent can come ashore without further dilution. lt is recommended that, to avoid floating effluent, water should not be discharged during very calm weather. Maximum storage space can be assured by normally pumping effluent to sea at the next high tide after treatment. (auth)« less

THE EFFECT OF X-RAY IRRADIATION ON THE COURSE OF VACCINAL PROCESS CAUSED BY THE ADMINISTRATION OF LIVING BRUCELLOSIS VACCINE TO ANIMALS (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Shevtsova, Z.V.

1959-10-01

Investigations were conducted on white rats irradiated at doses of 300 to 600 r and guinea pigs irradiated at doses of 150 to 250 r. It appeared that immunizition with vaccinal brucella culture it the height of radiation sickness increases the death rate of the irradiated animals. As demonstrated by bacteriological examination, development of generalized vaccinal process in the irradiated and immunized animals pursued the same course as in the immunized non- irradiated animals. This procoss was manifested in the dissemination of brucella vaccinal strain in various organs. However the irradiated animals become cleared of the vaccinal culture at amore » somewhat slower rate than in the non-irradiated ones. in guinea pigs, irradiated privious to vaccination there was a slower formation of agglutinins with lower titre than in control non-irradiated animals. Opsonic phagocytic blood index was somewhat lower only in the animals irradiated 24 hours previous to the vaccination. When irradiating white rats 24 hours or 10 days in advance or 24 hours after the vaccination, a delay in the agglutinin production has been observed during the first days following the vaccination. (auth)« less

Effects of lead and hydrocarbons from snowmobile exhaust on brook trout (Salvelinus fontinalis)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Adams, E.S.

1975-01-01

Lead and hydrocarbons from snowmobile exhaust were found in the water at high levels during the week following ice-out in a Maine pond. Fingerling brook trout (Salvelinus fontinalis) held in fish cages in the pond showed lead and hydrocarbon uptake. These contaminants accumulated during the previous winter when snowmobile operation on the pond was equivalent to one snowmobile burning 250 liters of fuel per season on a .405 hectare pond with average depth of 1 m. Lead content of the water rose from 4.1 ppb before snowmobiling to 135 ppb at ice-out; exposed trout contained 9 to 16 times moremore » lead than controls. Hydrocarbon levels undetectable prior to snowmobiling reached 10 ppm in the water and 1 ppm in exposed fish. Trout held in aquaria for 3 weeks in melted snow containing three different concentrations of snowmobile exhaust also showed lead and hydrocarbon uptake. Their digestive tract tissue contained the most lead (2 ppm) and gills the least (0.2 ppm). Stamina, as measured by the ability to swim against a current, was significantly less in trout exposed to snowmobile exhaust than in control fish. (auth)« less

REMOTE RESULTS OF SUCCESSFUL TREATMENT IN MYASTHENIA GRAVIS BY X-RAY IRRADIATION OF THE THYMUS AND SURGICAL TREATMENT OF RADIATION ULCER RESULTING FROM IT (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Merkova, M.A.; Mordvinova, N.P.; Golland, E.B.

1960-01-01

A case of complete cure of myasthenia gravis by xirradiation (6400 r) of the thymus is described. Radiation ulcer appeared in the sternal area of the skin 8 years after the x-ray therapy and was cured by excision of the injured skin with subsequent plastic operation. (auth)

Metal atom oxidation laser

DOEpatents

Jensen, R.J.; Rice, W.W.; Beattie, W.H.

1975-10-28

A chemical laser which operates by formation of metal or carbon atoms and reaction of such atoms with a gaseous oxidizer in an optical resonant cavity is described. The lasing species are diatomic or polyatomic in nature and are readily produced by exchange or other abstraction reactions between the metal or carbon atoms and the oxidizer. The lasing molecules may be metal or carbon monohalides or monoxides. (auth)

KDB-1 LOW-LEVEL AIRCRAFT SAMPLING SYSTEM

DOE Office of Scientific and Technical Information (OSTI.GOV)

Plagge, H.J.

1961-03-01

Use of KDB-1 drone aircraft appears feasible for the sampling of atomic debris at altitudes from 1000 to 40,000 feet. Further development would be necessary for precision control below 1000 feet. Further development and testing remains to be done on the sampling devices before the system can become operational. This system would be approximately one-seventh as expensive as present systems using manned aircraft. (auth)

THE EFFECT OF X-IRRADIATION ON THE PHOSPHOLIPASE AND ANTIOXIDANT ACTIVITIES OF RAT INTESTINAL MUCOSA

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ottolenghi, A.; Bernheim, F.

1960-04-01

The antioxidant effect of intestinal mucosa is the result of the liberation of free fatty acid from phospholipid by phospholipase. The fatty acid binds the iron and thus inhibits peroxidation of unsaturated lipids in the test system. The phospholipase and antioxidant activity of rat intestinal mucosa decreases markedly 24 hours postirradiation and to approximately the same extent. (auth)

RETARDED GROWTH OF BONES OF THE FOREARM IN A GIRL FOLLOWING RADIUM THERAPY OF SKIN HEMANGIOMA (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Mirimova, T.D.

1960-07-01

A 9-month-old girl was subjected to radium therapy of skin hemangioma in the region of the forearm. Thirteen years afterwards there was revealed a considerable impairment in the growth and development of long bones that were within the field of the irradiation, resulting in the formation of a deformed shortened hand with restricted functions. (auth)

OXIDATION YIELD IN FRICKE DOSIMETRY OF P$sup 32$ BETA RADIATION (in Portuguese)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Baptista, A.M.; da Silva, J.G.

1962-05-01

A determination was made of the G-value, the number of ions formed by the absorption of 100 ev of energy, in the ferrous sulfate dosimetry of P/sup 32/ beta particles. The value obtained was: G = 15.6 plus or minus 0.07. A discussion is included of the errors which may possibly affect the results. (tr- auth)

Theoretical Interpretation of the Measurement of Diffusion Parameters with Pulsed Neutron Source; INTERPRETAZIONE TEORICA DELLE MISURE DI PARAMETRI DI DIFFUSIONE COL METODO DELLE SORGENTI NEUTRONICHE PULSATE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Boffi, V.C.; Molinari, V.G.; Parks, D.E.

1962-05-01

Features of the pulsed neution source theory connected with the measurement of diffusion parameters are discussed. Various analytical procedures for determining the decay constant of the fully thermalized neutron flux are compared. The problem of the diffusion coefficient definition is also considered in some detail. (auth)

AIRCRAFT REACTOR CONTROL SYSTEM APPLICABLE TO TURBOJET AND TURBOPROP POWER PLANTS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gorker, G.E.

1955-07-19

Control systems proposed for direct cycle nuclear powered aircraft commonly involve control of engine speed, nuclear energy input, and chcmical energy input. A system in which these parameters are controlled by controlling the total energy input, the ratio of nuclear and chemical energy input, and the engine speed is proposed. The system is equally applicable to turbojet or turboprop applications. (auth)

ANALYTICAL METHOD FOR THE DETERMINATION OF BORON IN PURIFIED AND NATURAL WATERS (EXCLUDING SEA-WATER)

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1964-01-01

An aliquot of the sample is evaporated to dryness with sodium hydroxide, and the boron is determined absorptiometrically on the residue as the curcumin complex. The method is applicable to water containing 0.065 to 0.05 ppm boron. The standard deviation obtained from 12 recoveries at the 0.25 mu g level was 0.014 mu g. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hallerman, G.; Gray, R.J.

An instrument for crushing-strength determinations of uncoated and pyrolytic-carbon-coated fuel particles (50 to 500 mu in diameter) was developed to relate the crushing strength of the particles to their fabricability. The instrument consists of a loading mechanism, load cell, and a power supply-readout unit. The information that can be obtained by statistical methods of the data analysis is illustrated by results on two batches of fuel particles. (auth)

THE PROPERDIN SYSTEM AND CHANGES THEREIN IN RADIATION SICKNESS (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gekker, V.D.; Konikov, A.P.; Ivanova, L.K.

1961-02-01

A simplified method of properdin titration without Rreagents was used. It permits repeated regular results. During irradiation the properdin level in rats and rabbits decreases. The dynamics of properdin level changes in the blood of the irradiated animal could be of prognostic importance. Along with the properdin titer decline during irradiation, the titer of normal Flexner dysentery antibodies also diminishes. (auth)

Process for electroslag refining of uranium and uranium alloys

DOEpatents

Lewis, P.S. Jr.; Agee, W.A.; Bullock, J.S. IV; Condon, J.B.

1975-07-22

A process is described for electroslag refining of uranium and uranium alloys wherein molten uranium and uranium alloys are melted in a molten layer of a fluoride slag containing up to about 8 weight percent calcium metal. The calcium metal reduces oxides in the uranium and uranium alloys to provide them with an oxygen content of less than 100 parts per million. (auth)

HIGH EXPLOSIVE CRATER STUDIES: TUFF

DOE Office of Scientific and Technical Information (OSTI.GOV)

Murphey, B.F.

1961-04-01

Spherical charges of TNT, each weighing 256 pounds, were exploded at various depths in tuff to determine apparent crater dimensions in a soft rock. No craters were obtained for depths of burst equal to or greater than 13.3 feet. It was deduced that rock fragments were sufficiently large that charges of greater magnitude should be employed for crater experiments intended as models of nuclear explosions. (auth)

ATTENUATION OF COBALT-60 RADIATION FROM A SOURCE DISTRIBUTED AROUND A CONCRETE BLOCKHOUSE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Batter, J.F.; Starbird, A.W.

1961-06-15

Two radiation-shielding experiments were performed upon a simple blockhouse structure. The blockhouse was exposed to a simulated fallout field, and the radiation penetrating the structure was measured. The radiation field was produced by circulating a sealed cobalt-60 source through polyethylene tubing predistributed over an octant centered on the test building. Experimental details are described and results tabulated. (auth)

Intensity of Upward Muon Flux Due to Cosmic-Ray Neutrinos Produced in the Atmosphere

DOE R&D Accomplishments Database

Lee, T. D.; Robinson, H.; Schwartz, M.; Cool, R.

1963-06-01

Calculations were performed to determine the upward going muon flux leaving the earth's surface after production by cosmic-ray neutrinos in the crust. Only neutrinos produced in the earth's atmosphere are considered. Rates of the order of one per 100 sq m/day might be expected if an intermediate boson exists and has a mass less than 2 Bev. (auth)

Study of the Dynamics of a Pressurized Reactor as Integral Unit for Naval Propulsion; STUDIO DELLA DINAMICA DI UN REATTORE PRESSURIZZATO AD UNITA INTEGRALE PER PROPULSIONE NAVALE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gilardi, E.; Cimorelli, L.

1963-07-01

The dynamic behavior of an integrated, pressurizedwater reactor with natural circulation was investigated both by analog computer techniques and a simplified analytical approach. Hydraulic instabilities due to the core or riser were considered, as well as overall stability and problems arising from heavy sea conditions. (auth)

USE OF RADIOISOTOPES IN THE STUDY OF METAL-TO-METAL WEAR OF HARDENED IRON- BASE ALLOYS. Quarterly Report No. 1

DOE Office of Scientific and Technical Information (OSTI.GOV)

Talento, A.; Steven, G.

1959-04-15

A literature survey was made on the friction and wear of solid metals and on autoradiographic techniques as they apply to metal-to-metal wear studies. When two contacting surfaces are moving with respect to one another, the asperities weld together to form weld junctions. The number of junctions is large when no foreigm materials are on the contacting surfaces, but is greatly reduced by the presence of lubricants. Frictional forces are equal to the sum of the forces required to shear the weld junctions and the plough ing force. The rubbing surfaces may develop localized hot spots which may reach 2000more » F, and in these areas the metal is plastically deformed. Frictional forces and wear usually decrease as the hardness of the specimens increases. Autoradiographic techniques have been used to determine the location of radioactive tracers. Because photographic emulsions are sensitive to ionization caused by products of atomic disintegration, they are used to record the radiation given off by radioactive tracers. The wet and dry autoradiographic techniques that have been developed for metallurgical applications are described in this report. (auth)« less

EFFECT OF HYPOTHYROIDISM AND THYROID GRAFTS ON LYMPHOID TUMOR DEVELOPMENT IN IRRADIATED C57BL MICE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Nagareda, C.S.; Kaplan, H.S.

1959-04-01

Studies on the effect of radiothyroidectomy and thyroid grafts on the incidence of thymic implant lymphomas in thymectomized-irradiated CS7BL mice are reported. Hypothyroidism significantly inhibited thymic implant tumor development in females. A similar reduction of lymphoma incidence in hypothyroid males was not statistically significant. When thyroid activity was restored by grafting normal thyroids to radiothyroidectomized animals, lymphoma incidence returned to the level seen in euthyroid animals. I/sup 131/ uptake measurements were made on a representative number of thyroids and thyroid grafts. There was no significant uptake by the I/sup 131/-treated thyroids. Thyroid grafts were just as active as thyroids frommore » control animals. Body weight decreased significantiy in hypothyroid animals and was restored to control euthyroid levels in radiothyroidectomized animals by thyroid grafts. The possible influence of secondary nutritional and endocrine disturbances on leukemogenesis are discussed; it seems likely that the observed inhibition is attributable to hypothyroidism per se, rather than to secondary influences on nutrition or other endocrine imbalances. Incidental observations on pituitary tumor development in lymphoma- free radiothyroldectomized animals are also reported. Pituitary tumor development was completely prevented by thyroid grafts after radiothyroidectomy. (auth)« less

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

On January 14, 1974, AAI Corporation received a contract from the National Science Foundation to conduct a Solar Heating Proof-of-Concept Experiment (POCE) for a public school building. On March 1, 1974, one and a half months later, the experiment began as Timonium Elementary School became the first school in the United States heated by solar energy. In this brief period of time, AAI designed, manufactured, and installed a 5000 square foot collector array complete with mounting trusses, a 15,000 gallon water storage tank, school hot water heating system, and instrumentation. From March 1 to May 15 the selected wing ofmore » the school received 90% of its heat from the solar heating system. During this period, experimental data were collected and are presented in this report. This experiment has been successful since it has proven that the solar heating of schools is possible, practical, and socially acceptable. In addition, over 1200 gallons of fuel oil have been saved in the brief period the system has been in operation. This report describes the system in detail, presents the analysis of operation, and discusses recommendations and conclusions based upon the results of the experiment so far. (auth)« less

PM-1 NUCLEAR POWER PROGRAM. VOLUME II. PLANT PERFORMANCE STUDIES. Final Periodic Report, September 1, 1962 to December 31, 1962

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1963-04-01

Data obtained during the performance testing of the PM-1 plant were compiled and evaluated. The plant powers an Air Defense Command radar station located at Sundance, Wyoming, and is required to supply extremely high-quality electrical power (minimum of frequency and voltage fluctuations) even during severe load transients. The data obtained were compiled into the following format: (1) operating requirements; (2) startup requirements; (3) plant as an energy source; (4) plant radiation levels and health physics; (5) plant instrumentation and control; (6) reactor characteristics; (7) primary system characteristics; (8) secondary system characteristics; and (9) malfunction reports. It was concluded from themore » data that the plant performance in general meets or exceeds specification. Transient and steady-state electrical fluctuations are well within specified limitations. Heat balance data for both the primary and secondary system agree reasonably well with design predictions. Radiation levels are below those anticipated. Coolant activity in the primary system is approximately at anticipated levels; secondary system coolant activity is negligible. The core life was re-estimated based on asbuilt core characteristics. A lifetime of 16.6 Mw-yr is predicted. (auth)« less

INVESTIGATION OF THE EFFECTS OF PROCESSING VARIABLES AND FABRICATION TECHNIQUES UPON THE PROPERTIES OF INTERMETALLIC COMPOUNDS. Technical Report No. 190-229. Progress Report No. 2 for July 1, 1960 to September 30, 1960

DOE Office of Scientific and Technical Information (OSTI.GOV)

Truesdale, R.; Lympany, B.; Klein, J.

1960-10-15

The optimum sintering temperatures of cold pressed NbBe/sub 12/, Nb/sub 2/Be/sub 17/ and Nb/sub 2/Be/sub 19/ were established as 3090. and 3090 deg F, respectively. The compound Nb/sub 2/Be/sub 17/ sintered to 97.5% of theoretical density. Sound 4-in.-square by l-in.-thick blocks of Nb/sub 2/Be/sub 17/ were fabricated and cut into transverse-rupture bars. A modulus of rupture strength of over 46.000 psi was measured at 2500 deg F. In the metallurgical phase. tungsten was found to be a suitable jacket material for the mechanical working of the niobium beryllides at 3000 deg F if protected from oxidation. Cera-kote. a refractory coating,more » sufficiently reduced tungsten oxidation for periods up to 1- hr. Two Nb/sub 2/Be/sub 17/ specimens were upset at 2750 deg F and 7500 psi. An upset of 48% was achieved. causing a slight increase in density and grain size. (auth)« less

High-frequency optical oscillation during the flare phase of the red dwarf EV Lac

NASA Astrophysics Data System (ADS)

Contadakis, M.; Avgoloupis, S.; Seiradakis, J.

2006-01-01

The observational support of the presence of high frequency low amplitude oscillations reported by Zhillyaev et al. 2000 and Contadakis et al. 2004, is highly demanding and will be done by the future observations and by carefully reanalysing the data from our files. In this paper we present the results of the analysis of the B-light curve for a flare of magnitude 1.01,which was observed on September,1993. Despite the low time resolution (sampling interval 12s) we were able to detect transient low amplitude oscillations with period ranging between 30s and 125s with a confidence level higher than 70%. This result is in favour of (or does not contradict) the suggested explanation i.e the evolution of a fast mode magneto-acoustic wave generated at the impulsive phase of the flare and travelling through the magnetic loop From: Michael E.Contadakis Address: kodadaki@vergina.eng.auth.gr Database: phy

LATE CONSEQUENCES WITH SMALL RONTGEN DOSES IN IRRADIATED CHILDREN (TENTATIVE REPORT) (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Stasek, V.; Jakoubkova, J.; Brachfeld, K.

The authors searched for late reactions of radiation in children and young people, between the ages of 2 months and 5 years, who had been radiated on account of nontumorous diseases in the region of the throat. Ten to 15 years after the radiation 52 children and young people were examined. The examinations were carried out from the standpoint of radiotherapy, oto-rhino-laryngology, x- ray diagnostics, and pediatrics. In not quite half of those examimed local changes were stated and considered as late radiation damages: In 11 of those examined were disturbances of endocrinal coordination. Its appearance is, in the asmore » yet small compilation, relatively high. Considering that the first observation of this kind is being dealt with, and that there are not sufficient objective criteria, the authors keep for themselves a final evaluation only after verification on a greater number of radiated children and a control group. (auth)« less

LINER FOR EXTRUSION BILLET CONTAINERS. Interim Technical Documentary Progress Report, May 4-August 4, 1963

DOE Office of Scientific and Technical Information (OSTI.GOV)

Spachner, S.A.

1964-10-31

Rokide-process alumina and zirconia coatings and a Udimet 700 superalloy liner were evaluated by extrusion of 31/2-in. billets of Inconel 713C, Udimet 700, SAE 4340, PH15--7Mo, and TZM alloys, using rod extrusion dies of temperatures were in the 1900 to 2250 deg F and 2900 to 3600 deg F ranges. Both alumina and zirconia coatings provided adequate protection to the support tooling at temperatures to 3450 deg F. Alumina coatings showed wear at temperatures over 2900 deg F, but may be serviceable to 3450 deg F. Zirconia coatings showed erratic results. One coating did withstand extrusion at 3450 deg Fmore » without apparent wear. The Udimet 700 liner did not show wear at 2000 deg F, but did react with the TZM billet at 3600 deg F. T-section die design was modified to prevent die cracking during extrusion and reduce coating grinding costs. (auth)« less

A COMPARISON OF EXPERIMENTS AND THREE-DIMENSIONAL ANALYSIS TECHNIQUES. PART II. UNPOISONED UNIFORM SLAB CORE WITH A PARTIALLY INSERTED HAFNIUM ROD AND A PARTIALLY INSERTED WATER GAP

DOE Office of Scientific and Technical Information (OSTI.GOV)

Roseberry, R.J.

The experimental measurements and nuclear analysis of a uniformly loaded, unpoisoned slab core with a partially inserted hafnium rod and/or a partially inserted water gap are described. Comparisons of experimental data with calculated results of the UFO core and flux synthesis techniques are given. It is concluded that one of the flux synthesis techniques and the UFO code are able to predict flux distributions to within approximately -5% of experiment for most cases, with a maximum error of approximately -10% for a channel at the core- reflector boundary. The second synthesis technique failed to give comparable agreement with experiment evenmore » when various refinements were used, e.g. increasing the number of mesh points, performing the flux synthesis technique of iteration, and spectrum-weighting the appropriate calculated fluxes through the use of the SWAKRAUM code. These results are comparable to those reported in Part I of this study. (auth)« less

ADIABATIC DISPERSED TWO-PHASE FLOW: FURTHER RESULTS ON THE INFLUENCE OF PHYSICAL PROPERTIES ON PRESSURE DROP AND FILM THICKNESS. Topical Report No. 6

DOE Office of Scientific and Technical Information (OSTI.GOV)

Casagrande, I.; Cravarolo, L.; Hassid, A.

1963-05-01

A discussion is given of the experimental data obtained at CISE on two- phase adiabatic flow under the following conditions: vertical upward (dispersed regime) flow; circular conduit (15 to 25 mm diameter); gaseous phase argon or nitrogen; liquid phase water or ethyl alcohol-water solution (,90% by wt. of alcohol); gas fiow rate of 15 to 82 g/ cm/sup 2/; liquid flow rate of 20 to 208 g/ cm/sup 2/ sec; temperature of 18 to 20 deg C; pressure of up to approximates 22 kg/cm/sup 2/. The measured quantities are pressure drop and liquid film thickness on the wall of themore » conduit. The pressure loss and film flow rate are evaluated. The experimental data are discussed and the influence of surface tension and gas and liquid viscosity investigated. A simple relationship for the pressure loss over a wide range of experimental conditions in adiabatic dispersed regime is given. (auth)« less

MORTALITY IN SMALL ANIMALS EXPOSED IN A SHOCK TUBE TO "SHARP"-RISING OVERPRESSURES OF 3-4 MSEC DURATION. Technical Progress Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Richmond, D.R.; Goldizen, V.C.; Clare, V.R.

1961-06-15

A total of 661 animals was exposed to sharp''-rising overpressures of 3 to 4 msec duration using a shock tube of novel design which produced a pressure pulse similar to that obtained with high explosives. The reflected shock overpressures associated with 50% lethality were 29.0, rabbit, respectively. Other observations included the time of death in mortally wounded animals and gross pathological lesions likely to contribute to mortality. Selected data from the literature bearing upon the influence of overpressure and pulse duration on lethality were reviewed. These included pulse durations ranging from less than 1 msec to 8 sec. The criticalmore » pulse duration, that duration shorter than which the overpressures required for mortality increases sharply, was noted to depend upon animal size and to be of the order of many hundreds of microseconds to very few milliseconds for smaller'' animals and a few to many tens of milliseconds for larger'' animals. (auth)« less

EXPERIMENTAL AND RESEARCH WORK IN NEUTRON DOSIMETRY. Final Summary Report for the Period May 15, 1959-June 15, 1960

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gorton, H.C.; Mengali, O.J.; Zacaroli, A.R.

A practical, prototype silicon p-n junction fast-neutron dosimeter, sensitive in the same range as human tissue, was developed, together with sn associated read-out circuit to facilitate the accurate measurement of accumulated dose. From both theoretical and experimental considerations, it was demonstrated that the dosimeter is essentially insensitive to the gamma and thermal components of a uranium fission spectrum. It was shown that accumulated damage effects appear to be environmentally stable up to an ambient temperature of 100 C. A rather raarked reversible temperature dependence of the read-out parameters requires either control of the read-out temperature or temperature compensation in themore » read-out device. A high degree of reproducibility of dosimeter characteristics from one device to another was not achieved. The lack of reproducibility was attributed to uncontrolled variables in the bulk silicon from which the devices are fabricated, and in the production procedure. (auth)« less

THE USE OF Y$sup 91$ AS AN INERT INDICATOR IN INTESTINAL ABSORPTION TESTS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Maisterrena, J.A.; Murphy, C.A.; Tovar, E.

The use of Y/sup 91/ as an inert-indicator in the studies of the intestinal absorption of I/sup 131/-labeled substances is reported, emphasis being given to its clinical advantages. The Y/sup 91/ is not absorbed in the gastrointestinal tract, since recovery in the feces in 22 cases was 96 plus or minus 6.7% (S.D.) of the amount given. The Y/sup 91/ and the I/sup 131/-labeled substances are homogeneously distributed throughout any given stool sample but their rate of excretion is not always parallel. A close correlation was found between the amount of I/sup 131/ excreted as obtained from the complete fecalmore » collection method and that of Y/sup 91/-indicator method in a group of 20 subjects under special supervision. The value of the Y/sup 91/ inert-indicator method where the completeness of the stool collection is doubtful is shown in 23 cases. (auth)« less

OBSERVATION OF FALL-OUT IN TOKYO. PART I (in Japanese)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Suzuki, H.; Tanaka, M.; Asakuno, K.

1962-01-01

Total radioactivities of fallout in rain water and air dust observed in Tokyo are reported. The maximum radioactivities from October to November in 1961 were 125 mu mu C/m/sup 3/ in dust and 3.0 mu mu C/ml in rain water. This may be due to nuclear tests in September, 1981. The observation of gross radioactivities and Sr/sup 90/ concentration in rain water, vegetables, and soil in Miyake-Jima, Tokyo, has been carried on since July, 1960. The results showed no significant differences from the values observed in other places. Total radioactivities in rain water were 0.4 to 1.17 cpm/l in 1980more » and 8 to 7476 cpm/l in 1961, and in vegetable 3.4 to 7.9 cpm/dry weight (g) in 1980. The concentrations of Sr/sup 90/ were 16 to 78 mu mu C Sr/sup 90//Ca (g) in vegetables and 10 to 85 mu mu C Sr/sup 90//Ca (g) in soil. (auth)« less

ELECTROCARDIOGRAPHIC CHANGES IN RABBITS SUBJECTED TO THE CHRONIC ACTION OF RADIOACTIVE ZINC DURING INTRAVENOUS ADMINISTRATION OF ADRENALINE AND INHALATION OF AMMONIA (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ovakimov, V.G.; Bibikhin, L.N.; Saitanov, A.O.

1963-09-01

The employment of pharmacological loadings (administration of adrenaline and inhalation of ammonia) in rabbits subjected to the chronic action of radioactive zinc (1 and 10 mu C/kg) disclosed changes in the sensitivity of adrenoreactive systems of the myocardium (in adrenaline test) and an altered intensity and duration of reflex bradycardia (in ammonia test). (auth)

Information recovery from high-speed silver halide emulsions containing CRT traces after exposure to nuclear gamma radiation

DOE Office of Scientific and Technical Information (OSTI.GOV)

Dittmore, C. H.

1974-03-01

A data recovery problem often occurs in nuclear tests when photographic film used to record CRT traces is unavoidably exposed fo gamma rays before it can be retrieved for developing. Studies made to improve recovery of the CRT data from such film are described. Best results were obtained with a procedure involving reversal processing, silver intensification, dye-coupling development, and duplication. (auth)

NORMAL FLORA OF THE NOSE, THROAT, AND LOWER INTESTINE OF DOGS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Clapper, W.E.; Meade, G.H.

1963-03-01

An attempt was made to isolate and identify the complete normal flora of the rectum, nose, and throat of beagles. From the rectal specimens, 20 species of bacteria and 10 species of fungi were isolated and identified, The organisms were similar to those found in the human intestine. Escherichia coli, Streptococcus mitis, enterococci, S. lactis, Bacillus species, and coliforms other than E. coli were most frequently encountered. (auth)

All-magnetic extraction for cyclotron beam reacceleration

DOEpatents

Hudson, E.D.; Mallory, M.L.

1975-07-22

An isochronous cyclotron can be modified to provide an initial electron stripping stage, a complete acceleration of the stripped ions through the cyclotron to a first energy state, means for returning the ions to an intermediate cyclotron orbit through a second stripping stage, further acceleration of the now higher energy stripped ions through the cyclotron to their final energy, and final extraction of the ions from the cyclotron. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Owens, J.J.; Nejedlik, J.F.; Vogt, J.W.

The SNAP II system consists of a reactor heat source, a mercury Rankine engine, and an alternator. The problems involved in selecting materials for the SNAP II mercury system were studied. A discussion is given of the corrosion mechanisms involved in a system in which mercury is the working fluid. The problem resolves itself into selecting materials with the best combination of engineering properties for the application and highest resistance to mercury corrosion at the anticipated temperature. (auth)

Radioactive wastes in institutions of biological research (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kirchmann, R.

1973-01-01

The different radioelements used in the Belgian biological research laboratories and the activities used are indicated. The types of utilization of / sup 3/H, /sup 14/C, /sup 32/P, /sup 125/I, /sup 131/I, /sup 85/Sr, and /sup 226/ Ra and the handling procedures of contaminated wastes of these radionuclides are described. Finally, the release in situ'' was estimated for all the laboratories that were investigated. (auth)

Radioactive wastes in biological research institutions (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kirchmann, R.

1973-01-01

The different radioelements used in the Belgian Biological Research Laboratories and the activities used are indicated. The types of utilization of / sup 3/H, /sup 14/C, /sup 32/P, /sup 125/I, /sup 131/I, /sup 85/Sr, and /sup 226/ Ra are given. The handling procedures for contaminated wastes of these radionuclides are described. The release of radioactive waste by all the laboratories which were investigated is estimated. (auth)

MAGNETIC DEFLEXION OF ELECTRON BEAMS WITHOUT ASTIGMATISM

DOE Office of Scientific and Technical Information (OSTI.GOV)

Archard, G.D.; Mulvey, T.

1958-09-01

An electron beam passing through a magnetic defiecting field is, in general, subject to astigmatism. For circular pole pieces, this takes the form of focusing in the plane of deflection; for square pole pieces, focusing perpendicular to the pinne of deflection. Deflection free from astigmatism can be achieved by means of circular pole-pieces from which semicircular portions have been removed. An application of this to reflection electron microsccpy is described. (auth)

PROBLEMS OF THE OPTICAL MODEL FOR DEUTERONS. II. EXPERIMENTS FOR DETERMINATION OF THE PARAMETERS OF THE OPTICAL POTENTIAL FOR DEUTERONS (in Polish)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Grotowski, K.

1963-01-01

An experiment for determination of the parameters of the optical potential for deuterons is presented. Total reaction cross sections for the interaction of deuterons with nuclei were determined by evaluating the cross sections for the emission of charged particles and neutrons. The angular distributions for the elastic scattering of deuterons were also measured. (auth)

Investigation into the Susceptibility of Corrosion Resistant Alloys to Biocorrosion

DTIC Science & Technology

1994-06-30

Fro Bes AvialeC p INVESTIGATION INTO THE SUSCEPTIBILITY OF CORROSION RESISTANT ALLOYS TO BIOCORROSION Dr. Clive R.Clayton Dept.of Materials Science...QUAW jjqMCMD 9 INVESTIGATION INTO THE SUSCEPTIBILTY OF CORROSION RESISTANT ALLOYS TO BIOCORROSION Dr.Clive R.Clayton Dept. of Materials Science & Engg...TITLE (Mmkude Secwty camuf*tigon Investigation into the Susceptibility of Corrosion ’Resistant Alloys to Biocorrosion IL. PERSONAL AUThOR(S) Clive R

Extraction electrode geometry for a calutron

DOEpatents

Veach, A.M.; Bell, W.A. Jr.

1975-09-23

This patent relates to an improved geometry for the extraction electrode and the ground electrode utilized in the operation of a calutron. The improved electrodes are constructed in a partial-picture-frame fashion with the slits of both electrodes formed by two tungsten elongated rods. Additional parallel spaced-apart rods in each electrode are used to establish equipotential surfaces over the rest of the front of the ion source. (auth)

RADIOPHOSPHORUS IN THE DIFFERENTIAL DIAGNOSIS OF PIGMENTARY NEOPLASMS OF THE EYE (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Voznyuk, E.I.; Grusha, O.V.

Radiophosphorus was used for the diagnosis of pigmentary formattons of the eye tn 38 patients. A negative radiological test was obtatned tn 24 patients. Dynamic clinical observations confirmed the absence of malignization of the pigmentary formation. In 15 patients the radiological test was positive. It ts concluded that the technique may be useful for the detection of early forms of malignization of the nevus. (auth)

A CLASSICAL ANALOG FOR RELATIVISTIC CONTRACTION

DOE Office of Scientific and Technical Information (OSTI.GOV)

Epstein, L.

1963-12-01

It is possible to construct a mechanical model that demonstrates the Fitzgerald contraction. An equation is derived to describe the shape of a dimple moving across an elastic membrane, clearly showing the analogy to the field of a point charge in free space, including the relativistic contraction in the direction of motion. This model should suggest some reason to the inquiring mind that persists in wondering---- what really makes it shrink.'' (auth)

Heat exchanger tube mounts

DOEpatents

Wolowodiuk, W.; Anelli, J.; Dawson, B.E.

1974-01-01

A heat exchanger in which tubes are secured to a tube sheet by internal bore welding is described. The tubes may be moved into place in preparation for welding with comparatively little trouble. A number of segmented tube support plates are provided which allow a considerable portion of each of the tubes to be moved laterally after the end thereof has been positioned in preparation for internal bore welding to the tube sheet. (auth)

Dense Medium Ore Concentrates of Bois-Noirs; MINERAIS DES BOIS NOIRS CONCENTRES DE MILIEU DENSE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Le Bris, J.; Leduc, M.

1959-01-01

The chemical treatment of uranium concentrates of BoisNoirs ore obtained by heavy medium are discussed. The first part deals with sulfuric acid attack on the concentrate, and the second part with the separation of the solution from residues by filtration. A third part deals with this separation by decantation. The fourth part deals with the carbonation of the pickling solutions obtained. (auth)

Program for Calculating the Cubic and Fifth Roots of a Number of Newton's Method (610 IBM Electronic Computer); PROGRAMMA PER IL CALCOLO DELLE RADICI TERZA E QUINTA DI UN NUMERO, COL METODO DI NEWTON (CALCOLATORE ELETTRONICO IBM 610)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Giucci, D.

1963-01-01

A program was devised for calculating the cubic and fifth roots of a number of Newton's method using the 610 IBM electronic computer. For convenience a program was added for obtaining n/sup th/ roots by the logarithmic method. (auth)

THE DETERMINATION OF BORON IN ZIRCALOY

DOE Office of Scientific and Technical Information (OSTI.GOV)

Freegarde, M.; Cartwright, J.

1962-03-01

An account is given of the development of a simple and reliable procedure for determining boron in Zircaloy at the parts per million level. The sample is dissolved in a mixture of bromine and methanol, and the boron is separated by distillation and determined as its rosocyanin complex with curcumin. The reproducibility of the method is characterized by a standard deviation of 0.03 ppm at the 0.3 ppm level. (auth)

CONTINUOUS ROTATION SCATTERING CHAMBER

DOEpatents

Verba, J.W.; Hawrylak, R.A.

1963-08-01

An evacuated scattering chamber for use in observing nuclear reaction products produced therein over a wide range of scattering angles from an incoming horizontal beam that bombards a target in the chamber is described. A helically moving member that couples the chamber to a detector permits a rapid and broad change of observation angles without breaching the vacuum in the chamber. Also, small inlet and outlet openings are provided whose size remains substantially constant. (auth)

Regional geology and geophysics of the Jemez Mountains

DOE Office of Scientific and Technical Information (OSTI.GOV)

West, F.G.

1973-08-01

The western margin of the Rocky Mountain tectonic belt is the initial site for the Los Alamos Geothermal Project. lgneous activity in the area culminated with the formation of a collapsed volcanic caldera and the deposition of thick beds of tuff. Geophysical studies indicate that the region is one of relatively highterrestrial heat flow, low-crustal density, low-crustal seismic velocities, low-crustal magnetoelectric impedance, and thin crust. 34 references. (auth)

MEASUREMENT OF TIME INTERVALS FOR TIME CORRELATED RADIOACTIVE DECAY

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lindeman, H.; Mornel, E.; Galil, U.

1960-11-01

The distribution of time intervals between successive counts was measured for radioactive decay in the thorium series. The measurements showed that the classical Marsden-Barratt law does not apply to this case of timecorrelated decay. They appeared, however, to be in agreement with the theory of Lindeman-Rosen, taking into account the fact that the counter receives only the radiation emitted in a solid angle near to 2 pi . (auth)

IMPROVEMENT OF THE EXTRACTION SEPARATION OF URANIUM AND ZIRCONIUM USING ZIRCONIUM-MASKING REAGENTS (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kyrs, M.; Caletka, R.; Selucky, P.

1963-12-01

The masking capacities of a series of reagents were studied in the zirconium extraction with tributyl phosphate solution in the presence of nitric acid. It was established that with many reagents an improvement of the separation of uranium from zirconium could be obtained. The efficiency of the reagents increases in the series tannin, oxalic acid, tiron, pyrogallol, and Arsenazo I. (tr-auth)

CALIBRATION OF INSTRUMENTS FOR RADIATION MEASUREMENTS FROM LOFTED VEHICLES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Banks, W.O.

1962-05-01

The designs and developments accomplished by the Air Proving Ground Certer in support of Project TRUMP are considered. Project TRUMP pertains to the design and developmert of methods for measuring radiation from lofted vehicles. Several methods of simulating the space environment, for purposes of ground calibration of instruments to be lofted, are proposed. A mathematical approach, similar to that used by early Smithsonian solar constant seekers, is presented. (auth)

COST FUNCTION STUDIES FOR POWER REACTORS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Heestand, J.; Wos, L.T.

1961-11-01

A function to evaluate the cost of electricity produced by a nuclear power reactor was developed. The basic equation, revenue = capital charges + profit + operating expenses, was expanded in terms of various cost parameters to enable analysis of multiregion nuclear reactors with uranium and/or plutonium for fuel. A corresponding IBM 704 computer program, which will compute either the price of electricity or the value of plutonium, is presented in detail. (auth)

PWR PRELIMINARY DESIGN FOR PL-3

DOE Office of Scientific and Technical Information (OSTI.GOV)

Humphries, G. E.

1962-02-28

The pressurized water reactor preliminary design, the preferred design developed under Phase I of the PL-3 contract, is presented. Plant design criteria, summary of plant selection, plant description, reactor and primary system description, thermal and hydraulic analysis, nuclear analysis, control and instrumentatlon description, shielding description, auxiliary systems, power plant equipment, waste dispusal, buildings and tunnels, services, operation and maintenance, logistics, erection, cost information, and a training program outline are given. (auth)

Ceramic Electron Multiplier

DOE PAGES

Comby, G.

1996-10-01

The Ceramic Electron Multipliers (CEM) is a compact, robust, linear and fast multi-channel electron multiplier. The Multi Layer Ceramic Technique (MLCT) allows to build metallic dynodes inside a compact ceramic block. The activation of the metallic dynodes enhances their secondary electron emission (SEE). The CEM can be used in multi-channel photomultipliers, multi-channel light intensifiers, ion detection, spectroscopy, analysis of time of flight events, particle detection or Cherenkov imaging detectors. (auth)

Detection of radon emission at the edges of lunar maria with the apollo alpha-particle spectrometer

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gorenstein, P.; Golub, L.; Bjorkholm, P.

1974-02-01

The distribution of radioactive /sup 210/Po, a decay product of /sup 222/ Rn, shows enhanced concentrations at the edges of lunar maria. Enhancements are seen at the edges of Mare Fecunditatis, Mare Crisium, Mare Smythii, Mare Tranquillitatis, Mare Nubium, Mare Cognitum, and Oceanus Procellarum. The observation is indicative of the transient emission of radon gas from the perimeters of lunar maria. (auth)

Unlinkable Serial Transactions

DTIC Science & Technology

1997-01-01

the result of blinding X, for use with the appropriate signature key. 3.3 Registration Message 1 C ! V : fPayment ;Kaudit;CreditAuth;KCV gV ; [Request...anonymous e-cash as presented by Chaum et al. [6], is characterized by several requirements [13]: independent of physical requirements, unforgeable and...penalties can then be applied that make double spending not cost e ective. Chaum’s notion of blinding [5] is a fundamental technique used in

CALCULATION OF COOLING TOWERS AND INJECTION COOLERS BY MEANS OF AN EVAPORATION METHOD (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Spangemacher, K.

1958-05-01

Calculation and evaluation of cooling towers, as recommended by Merkel, are critically examined. The usual methods of practical calculation are explained as well as a new procedure which combines great accuracy with brevity. Merkel's method is extended to injection coolers for gas and compressed air. It was discussed whether the dimensionless ''evaporation coefficient'' should be called the''Merkel coefficient.'' (tr-auth)

EFFECT OF RADIOACTIVE ISOTOPE ON THE FLOWERING BEHAVIOUR OF JUTE (CORCHORUS OLITORIUS LINN.)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Das, A.; Choudhury, A.K.R.

1962-03-01

Following irradiation with S/sup 35/, the dispersion of the flowering time of jute was increased in the first generation. The genetic variability of the treated population in the second generation was found to be greater than that of control population by two and a half times. But owing to the largeness of environmental variation, poor heritability of the flowering time was noticed. (auth)

A FLEXIBLE POLYTHENE GLOVE BOX

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hughes, A.

1957-11-01

The need for a glove box capable of maintaining an inert atmosphere arose during the sampling and analysis of the alkali metals. The conventional rigid glove box was found to be unsuitable in practice and also inefficient in theory. The requirement was met by improvising a flexible glove box from thin polythene sheet. The alternative solution a this problem would have required an expensive vacuum glove box with its attendant pumping unit. (auth)

Relativistic electron beam device

DOEpatents

Freeman, J.R.; Poukey, J.W.; Shope, S.L.; Yonas, G.

1975-07-01

A design is given for an electron beam device for irradiating spherical hydrogen isotope bearing targets. The accelerator, which includes hollow cathodes facing each other, injects an anode plasma between the cathodes and produces an approximately 10 nanosecond, megajoule pulse between the anode plasma and the cathodes. Targets may be repetitively positioned within the plasma between the cathodes, and accelerator diode arrangement permits materials to survive operation in a fusion power source. (auth)

Tubular electric heater with a thermocouple assembly

DOEpatents

House, R.K.; Williams, D.E.

1975-08-01

This patent relates to a thermocouple or other instrumentation which is installed within the walls of a tubular sheath surrounding a process device such as an electric heater. The sheath comprises two concentric tubes, one or both of which have a longitudinal, concave crease facing the other tube. The thermocouple is fixedly positioned within the crease and the outer tube is mechanically reduced to form an interference fit onto the inner tube. (auth)

RECORDING DEVICE FOR 128 CHANNEL IONIZATION CHAMBERS (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Goryunov, N.N.

1959-05-01

Descriptions are given of a 128-channel amplitude recording device desiged for operation with ionization chambers. Each channl has a large puse recording dynamic amplitude range (amplitudes can vary from each other up to 8000 fold). The recording of amplitudes is accomplished by photographing pulses on a cathode ray tube. With the aid of a commutation device it is possible to record 64 pulses simultaneously on one tube screen. (tr-auth)

Schottky barrier betavoltaic battery

DOE Office of Scientific and Technical Information (OSTI.GOV)

Manasse, F.K.; Pinajian, J.J.; Tse, A.N.

1976-02-01

A new nuclear betavoltaic battery is described. It uses a Schottky barrier in place of the more standard p-n junction diode, along with $sup 147$Pm metal film rather than Pm$sub 2$O$sub 3$ oxide as in the commercially available Betacel. Design details of the battery including measurement of absorption, conversion efficiency, thickness etc. as functions of resistivity and other cell parameters are described. A prototype design is discussed and its performance assessed. (auth)

THE POLARIZATION OF NEUTRONS FROM THE C$sup 12$(d,n) N$sup 13$ REACTION

DOE Office of Scientific and Technical Information (OSTI.GOV)

Budzanowski, A.; Grotowski, K.; Niewodniczanski, H.

1959-01-01

The polarization of neutroni emitted irom the stripping reaction C/sup 12/(d,n)N/sup 13/ was investigated at the reaction angle theta /sub lab/ = 15 deg and deuteron energy E/sub d/ = I2.9 Mev. The polarization of neutrons connected with the 3.56 Mev energy- level in N/sup 13/ nucleus was found to be - (0.39 plus or minus 0.11). (auth)

THE RESISTANCE TO $gamma$ RADIATION OF THE WORKER BEE (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Courtois, G.; Lecomte, J.

The worker bee which has been subjected to gamma radiation from a Co/ sup 60/ source can withstand without apparent physical damage a dose of 18,000 r. At 90,000 r there is, however, appreciable damage. At a dose of 200,000 r, death is immediate in 100% of the cases. The physiological state of the bee plays an important role in determining its resistance to gamma radiation. (auth)

AUTOMATIC RECORDING OF THE RADIOACTIVITY OF ZONES ELUTED FROM THE GAS- LIQUID CHROMATOGRAM

DOE Office of Scientific and Technical Information (OSTI.GOV)

James, A.T.; Piper, E.A.

1961-03-01

A simple proportional flow counter for use with the gas chromatogram is described. which is operated at room temperature by burning all eluted material to CO/sub 2/ over heated copper oxide. The gas stream is dried. 5% CO/sub 2/ is injected and the mixture passed into the counter. Details are given of the necessary circuitry. Examples are provided of its use with long chain fatty acids. (auth)

Residual disabilities in children treated for intracranial space-occupying lesions

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bamford, F.N.; Jones, P.M.; Pearson, D.

1976-02-01

A retrospective study of 30 long-term survivors of cranial or craniospinal irradiation for intracranial space-occupying lesions has demonstrated physical and mental handicaps in the majority. This is most severe in those cases treated before the age of 11 years, and is not confined to those children having craniospinal or whole-brain irradiation. The mental handicap also appears to be progressive, but cannot be easily examined in this retrospective study. (auth)

PLASTIC-SASS--A COMPUTER PROGRAM FOR STRESSES AND DEFLECTIONS IN A REACTOR SUBASSEMBLY UNDER THERMAL, HYDRAULIC, AND FUEL EXPANSION LOADS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Friedrich, C.M.

1963-05-01

PLASTlC-SASS, an ALTAC-3 computer program that determines stresses and deflections in a flat-plate, rectangular reactor subassembly is described. Elastic, plastic, and creep properties are used to calculate the results of temperature, pressure, and fuel expansion. Plate deflections increase or decrease local channel thicknesses and thus produce a hydraulic load which is a function of fuel plate deflection. (auth)

METHOD FOR THE STUDY OF THE LIVER BLOOD FLOW USING GAMMA-EMITTING RADIONUCLIDES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Baptista, A.M.; Carvalho, J.S.

1959-10-31

A method is described for the evaluation of liver blood flow values by radioactivity measurements of gamma-emitting radionuclides, in colloid form, using a scintillation detector positioned over the liver region. It is shown that the disappearance rate constant of the nuclide from the blood can be calculated from the curves obtained. Advantages of the method, including the use of small amounts of radioactive materials, are discussed. (auth)

Uses of Radioactive Isotopes in Industry; APLICACIONES DE LOS ISOTOPOS RADIACTIVOS EN LA INDUSTRIA

DOE Office of Scientific and Technical Information (OSTI.GOV)

Plata, A.; del Val Cob, M.; Gamboya, J.M.

1962-01-01

A list of some of the most important problems in industry that were approached by the use of radioactive isotopes is presented. The list was compiled through the experience galned in revising for several years important scientific journals and other sources of information on this subject. The classification of industries was done in an arbitrary way, choosing those isotope uses that have reached a higher degree of development. (auth)

INCREASED NUMBER OF COFFEE BEANS PRODUCED FROM IRRADIATED SEEDS (in Spanish)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Monge, F.

1962-10-01

A genetic analysis of coffee plants from neutron and x-irradiated seed reveals that peaberry percent increased with radiation dose applied. The response for neutron irradiated plants was linear whereas for the x ray treatments it was exponential. This suggests that the high frequency of peaberries obtained from irradiated plants is due to chromosomal aberration; that cause gamete elimination and thus, a high production of one-seeded fruits. (auth)

Radiometry of liquids: characteristics and systematization of the requirements imposed on it (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Isakov, L.M.; El'tsin, G.I.

1972-01-01

The requirements imposed on the measurement of the radioactivity of liquids are differentiated as a function of the purpose of the instrument. Five groups of radiometers were examined and for each the individual requirements were characterized. The proposed systematization was oriented toward the ordering of the development of liquid radiometers and a reduction in the number of models without limiting their range of applicability. (tr-auth)

BARIUM AND STRONTIUM CONCENTRATIONS IN EYE TISSUE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sowden, E.; Pirie, A.

1958-12-01

The stroniium and barium conient of the differeni parts of the eye has been estimated by the method of activation analysis in cattie, rabbit, and man. The pigmented parts of the eye coatain more stroatium and barium than the other parts, and barium in particular is concentrated in the choroid of the cow. These results are discussed in relation to the presence of high concentrations of zinc in the choroidal tapetum lucidum of other animals. (auth)

ANALYTICAL METHOD FOR THE ABSORPTIOMETRIC DETERMINATION OF BORON IN SODIUM METAL

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1963-01-01

Sodium metal is dissolved in water under an inert atmosphere of argon, and the resulting sodium hydroxide solution is evaporated to dryness. Rosocyanin is formed, separated from excess curcumin, and dissolved in ethanol for absorptiometric measurement. The method is applicable to sodium metal containing 0.1 to 1 ppm boron. The precision should be within plus or minus 20% (95% confidence limits) at the 0.5 ppm boron level. (auth)

SPECTROPHOTOMETRIC DETERMINATION OF TRACES OF BORON IN THORIUM

DOE Office of Scientific and Technical Information (OSTI.GOV)

Onishi, H.; Ishiwatari, N.; Nagai, H.

1960-12-01

A procedure is described for the spectrophotometric determination of a few tenths of a pant per million of boron ia thorium oxide or thorium. The sample is dissolved in strong phosphoric acid. After diluting the solution with water, boron is separated by distillation as methyl borate and finally determined by the curcumin method. The error is not likely to exceed plus or minus O.l ppm for 0.2 to 1 ppm of boron. (auth)

A DERMAL LESION FROM IMPLANTED PLUTONIUM

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lushbaugh, C.C.; Langham, J.

1962-10-01

Histologic and autoradiographic examination of a piece of palmar human skin said to have been cortaminated by a penetrating piece of plutonium revealed intense alpha -track concertration in a minute focus of subacute and chronic radiodermatitis, Although the penetration of the alpha -particles was minimal, the severe local effects seemed to indicate that a massive dose of alpha - radiation had been delivered to the area in the 4 years the contamination had been presert. (auth)

Stability of a Plasma Column. Free-Particle Model; STABILITE D'UNE COLONNE DE PLASMA. MODELE DES PARTICULES LIBRES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Troyon, F.

1963-12-01

The stability of a field-free homogeneous column of plasma confined to an axial static field and the sum of an alternating and static B/sub tt/ field is considered in the freeparticle model. Conditions for the existence of a positive average restoring force are derived, and it is shown that for small deformations the column is stable for sufficientiy high frequency. (auth)

AMMONIUM DIURANATE PRECIPITATION WITH ANHYDROUS AMMONIA

DOE Office of Scientific and Technical Information (OSTI.GOV)

Farrell, L.C.; Grill, L.F.

1959-03-01

Ammonium diuranate has been precipitated from nitric acid solutions by the addition of anhydrpus ammonia on both laboratory and production scales. This process produced more dense and morc rapidly filtered precipitates than those formed by the addition of aqueous amonia or slurried calcium hydroxide. Thc filtrates from the anhydrous ammonia process were lower in uranium content than those obtained by the addition of the other reagents. Processing equipment and precipitate characteristics are discussed. (auth)

ON THE CALIBRATION OF DK-02 AND KID DOSIMETERS (in Estonian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ehvaert, H.

1963-01-01

For the periodic calibration of the DK-02 and WD dosimeters, the rotating stand method which is more advantageous than the usual method is recommended. The calibration can be accomplished in a strong gamma field, reducing considerably the time necessary for calibration. Using a point source, the dose becomes a simple function of time and geometrical parameters. The experimental values are in good agreement with theoretical values. (tr-auth)

THE RECRYSTALLIZATION TEMPERATURE OF IRON AS AFFECTED BY DILUTE TRANSITIONAL ELEMENTS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Abrahamson, E.P. II; Blakeney, B.S. Jr.

1960-01-01

The effect of the transition elements in binary solid solution additions upon the recrystalization temperature of iron has been investigated. All these elements immediately raise the temperature, most having their major effect in less than 0.10 at.%. A correlation is noted between the rate of change of recrystallization temperature with at.% solute and the electron configuration of the added element. An explanation is proposed to account for this phenomena. (auth)

STUDY OF THE OXIDATION OF NON-ALLOYED ZIRCONIUM AND OF OXYGEN DIFFUSION IN THE OXIDE FILM AND IN THE METAL (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Debuigne, J.; Lehr, P.

1963-12-01

The oxidation processes of zirconium at 600-850 deg C were studied. A micrographic and radiocrystallographic analysis of the oxide layers formed at the surface of the metal was carried out. The kinetic results, weight gains as function nf time, were completed by the study of oxygen diffusion through the oxide layer formed and in the underlying metal. (auth)

Lienard--Wiechert fields and general relativity

DOE Office of Scientific and Technical Information (OSTI.GOV)

Newman, E.T.

1974-01-01

An analogy is extablished between the Lienard-Weichart solutions of the Maxwell equations and the Robinson-Trautman solutions of the einstein equations by virtue of the fact that a principal null vector field of either the Maxwell or Weyl tensor in each case satisfies the following four conditions: (1) The field is a geodesic field, (2) it has nonvanishing divergence, (3) it is shear free, and (4) it is twist (or curl) free. (auth)

Effects of gamma radiation on the chromosomes of Gryllidae (orthoptera)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lim, H.C.; Kevan, D.K.; Vickery, V.R.

1972-12-01

BS>Six species if Gryllidae (orthoptera), Gryllus assimilis, G, Bim aculatus, G. pennsylvanicus, Acheta domesticus, Scapipedus marginatus, and Allonemobius allardi, were subjected to gamma radiation treatment (dosages varied from 1000 rads to 2446 rads) in order to induce chromosomal abnormalities. Gamma radiation was found to affect development, survival, and reproduction. Effects of gamma rays were similar in all of the species studied, but sensitivity varied between the different species. (auth)

EXPERIMENTAL MOLTEN-SALT-FUELED 30-Mw POWER REACTOR

DOE Office of Scientific and Technical Information (OSTI.GOV)

Alexander, L.G.; Kinyon, B.W.; Lackey, M.E.

1960-03-24

A preliminary design study was made of an experimental molten-salt- fueled power reactor. The reactor considered is a single-region homogeneous burner coupled with a Loeffler steam-generating cycle. Conceptual plant layouts, basic information on the major fuel circuit components, a process flowsheet, and the nuclear characteristics of the core are presented. The design plant electrical output is 10 Mw, and the total construction cost is estimated to be approximately ,000,000. (auth)

Information and research: an essential partnership

DOE Office of Scientific and Technical Information (OSTI.GOV)

Oen, C.J.; White, M.G.; Dunaway, P.B.

Information support is provided to the Nevada Applied Ecology Group (NAEG) through the Ecological Sciences Information Center (ESIC) at Oak Ridge National Laboratory to offer an effective, easy-to-use link between the individual researcher and the literature relevant to his work. Information within the interest areas defined by NAEG administration is identified and entered into a computerized system that provides rapid, accurate retrieval. The primary topics are the environmental aspects of the transuranic elements. (auth)

Discussion of NAEG distribution and inventory program sampling data in preparation for initiation of phase III

DOE Office of Scientific and Technical Information (OSTI.GOV)

Brady, D.N.; Church, B.W.; White, M.G.

Soil sampling activities during 1974 were concentrated in Area 5 of the Nevada Test Site (NTS). Area 5 has been assigned the highest priority because of the number of atmospheric test events held and a wide distribution of contaminants. Improved sampling techniques are described. Preliminary data analysis aided in designing a program to infer $sup 239-240$Pu results by Ge(Li) scanning techniques. (auth)

PARTIAL-BODY RADIATIONS OF QUEEN HONEY BEES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lee, W.R.

1964-10-31

By shielding abdominal segments III through V queen honey bees survived otherwise lethal doses of x radiation. In contrast, irradiating only segments III through V with 10,000 r killed all queens within three weeks, as did wholebody irradiations. Lead shields that protect segments III through V and permit irradiating either the spermatozoa in the spermatheca or the oogonia of the ovary with higher doses than could otherwise be adminlstered are described. (auth)

Apodised aperture using rotation of plane of polarization

DOEpatents

Simmons, W.W.; Leppelmeier, G.W.; Johnson, B.C.

1975-09-01

An apodised aperture based on the rotation of plane of polarization producing desirable characteristics on a transmitted light beam such as beam profiling in high flux laser amplifier chains is described. The apodised aperture is made with a lossless element by using one or more polarizers and/or analyzers and magneto-optical Faraday means for selectively rotating the plane of polarized radiation over the cross section to effect the desired apodisation. (auth)

APPLICATION OF RADIOISOTOPES TO THE QUANTITATIVE CHROMATOGRAPHY OF FATTY ACIDS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Budzynski, A.Z.; Zubrzycki, Z.J.; Campbell, I.G.

1959-10-31

The paper reports work done on the use of I/sup 131/, Zn/sup 65/, Sr/sup 90/, Zr/sup 95/, Ce/sup 144/ for the quantitative estimation of fatty acids on paper chromatograms, and for determination of the degree of usaturation of components of resolved fatty acid mixtures. I/sup 131/ is used to iodinate unsaturated fatty acids, and the amount of such acids is determined from the radiochromatogram. The degree of unsaturation of fatty acids is determined by estimation of the specific activiiy of spots. The other isotopes have been examined from the point of view of their suitability for estimation of total amountsmore » of fatty acids by formation of insoluble radioactive soaps held on the chromatogram. In particular, work is reported on the quantitative estimation of saturated fatty acids by measurement of the activity of their insoluble soaps with radioactive metals. Various quantitative relationships are described between amount of fatty acid in spot and such parameters as radiometrically estimated spot length, width, maximum intensity, and integrated spot activity. A convenient detection apparatus for taking radiochromatograms is also described. In conjunction with conventional chromatographic methods for resolving fatty acids the method permits the estimation of composition of fatty acid mixtures obtained from biological material. (auth)« less

A STUDY OF THE EFFECTS OF ELEVATED TEMPERATURES ON THE GROWTH AND INHERITANCE OF SACCHAROMYCES CEREVISIAE (thesis)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sherman, F

1958-11-01

A comparative study was made of the growth of yeast in various media at the optimum temperature (30 ) and at supraoptimum temperatures. It was found that at elevated temperatures there is a decrease in the ability of yeast to grow, which may be alleviated by increasing the percentage of yeast extract in the medium, adding oleic acid to the medium, or using an inoculum of cells that have previously been grown at the elevated temperature. Because of these findings, it is believed that growth at elevated temperatures results in an increased nutrient requirement which may be eliminated by inducedmore » adaptation. When yeasts were grown at elevated temperatures or exposed for a short time to lethal temperatures it was found that there was a great increase in the fraction of respiratory-deficient mutants (petites). It was shown that the increase of mutants did not arise because of selection, but that the elevated temperatures actually induced the mutation. From the results of various genetic analyses it is shown that these respiratorydeficient mutants are very similar, if not identical. to vegetative petites occurring spontaneously or induced by acriflavine. The kinetics of this mutation is discussed, with possible theoretical interpretations. (auth)« less

CORROSION FILM REMOVAL AS AN INDICATION OF DECONTAMINATION EFFECTIVENESS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Weed, R.D.

1958-11-10

The decontamination of high-temperature, highpressure recirculation loops and components is being investigated. The Turco-4501 process and certain promising modificatibns of this process are being evaluated according to their film-removing qualities. Two of the processes exhibited more promise than others. These were the Turco-4501 process, substituting either oxalic acid or a chromic acid solution lor the nitric acid. Other variations were also tested and results are reported. (W.L.H.) l8636 The dissipation of effluent into sea water by initial dilution eddy diffusion and residual currents was originally assessed by Seligman and Scott in 1948. Further experimental work is described which has enabledmore » a new urement of the initial dilution of fresh water from the pipe line, and a study of the movement of water as indicated by driff bottles. It is now envisaged that initial dilution by a factor of 10/sup 4/, will be followed by eddy diffusion with the coefficients as measured by Seligman and bulk movement primarily due to the force of the wind Exceptions will occur when defined calm conditions exist. The discharged effluent will then tend to float on the surface with an initial dilution factor of only a few diffussing remains of the previous activity there being no incations of residual currents. No work has been done a see if this more concentrated effluent can come ashore without further dilution. It is recommended that, a avoid floating effluent, water should not be discharged July. Thc p1imhry ob!ect of this inveBtigation was 10 gtudy during very calm weather. Maximum storage space can he assured by normaally pumping effluent to sea at the rffi hQh tide affer treatment. (auth) during very calm weather. Maximum storage space can be assured by normally pumping effluent to sea at the« less

DOE Office of Scientific and Technical Information (OSTI.GOV)

Stairs, G. R.

The production of pollen under conditions of chronic gamma irradiation was investigated for three oak species. Two chronically irradiated areas were studied: a low level (1 to 15r/day) area where trees had received varying amounts of radiation over a period of 11 years, and a second area receiving gamma radiation for about five months previous to the investigation. In the latter study dose levels ranged from lethal (45r/day) to a region of no detectable effect. In both areas pollen abortion showed a significant increase with increasing radiation exposure, although germinable pollen was produced at all survival levels examined. The germinatingmore » pollen tube length did not show a significant decrease in the irradiated material examined. In addition to cytological effects there was a marked deiny in floral phenology for both areas. Acute irradiation of male flower buds at different stages of meiosis, and of mature pollen were reported. The radiosensitivity of microsporogenesis was evaluated by cytological scoring at anaphase I, and by pollen abortion, germination, and tube lengih. Both the number of chromosome fragments/100 cells scored at anaphase I and pollen abortion showed a linear increase with an increase in radiation exposure. Pollen germination and tube length were less effected by radiation (based on a percent of unaborted grains). It was suggested that a range of 1 kr to 4 kr will be appropriate for irradiating male flower buds of oak to be utilized in a mutation breeding program. Contingent upon additional studies the range of radiation recommended for flower buds is also suggested for the induction of mutations in pollen. Pollen was found to be highly resistant to radiation when evaluated by germination and tube growth studies. No effect was found with irradiation of 100 kr; at 300 kr both germination and tube lengths were depressed. At these levels it is probable that germination is an expression of cytoplasmic growth and not of nuclear viability. No significant difference was found between responses of the two species for either chronic or acute irradiation. (auth)« less

ELECTRON SPIN RESONANCE STUDIES ON PEROXIDE RADICALS IN IRRADIATED POLYPROPYLENE (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Fischer, H.; Hellwege, K.-H.; Neudoerfl, P.

1963-06-01

Peroxide radicals are formed by oxidation of carbon radicals in irradiated isotactic polypropylene. An interpretation of their ESR spectra is given. The recombination of the peroxide radicals follows a chain reaction mechanism, which is derived from the reversibility of formation of peroxide radicals, the time dependence of their concentration, and from the oxygen consumption of samples containing peroxide radicals. The reactions are discussed in view of the radiation induced oxidative degradation of polypropylene. (auth)

Cardiovascular changes after a radioprotective dose of AET in rats

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kuna, P.; Smid, A.

1973-01-01

BS>Cardiac output and stroke volume decreased in pentobarbital anesthesized rats 10 and 20 minutes following AET - BrHBr 1150 mg/kg i.p.) administration. Significant bradycardia was observed from the 20d until the 9th minute post injection. The blood pressure was lowered during the first minute interval only. Peripheral resistance insignificantly increased following AET. No significant changes in the blood flow (estimated by /sup 86/Rb methodl occurred in radiosensitive tissues. (auth)

APPROACH TO EQUILIBRIUM OF A QUANTUM PLASMA

DOE Office of Scientific and Technical Information (OSTI.GOV)

Balescu, R.

1961-01-01

The treatment of irreversible processes in a classical plasma (R. Balescu, Phys. Fluids 3, 62(1960)) was extended to a gas of charged particles obeying quantum statistics. The various contributions to the equation of evolution for the reduced one-particle Wigner function were written in a form analogous to the classical formalism. The summation was then performed in a straightforward manner. The resulting equation describes collisions between particles "dressed" by their polarization clouds, exactly as in the classical situation. (auth)

THE EFFECTS OF LOW DOSES OF GAMMA RADIATION ON PLANT YIELDS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bowen, H.J.M.; Cawse, P.A.; Smith, S.R.

1962-09-01

the effects of low doses of gamma radiation from Co/sup 60/ were tested on dormant seeds of flax, radish, and cabbage, and on young plants of flax, cabbage, lettuce, ciover, duckweed, and pine. Fresh or dry weights were taken as a measure of yieid at harvest. Only in the case of pine seedlings was significant stimulation noticed: this occurred in the dose range 2 to 6 rad after 9 months growth. (auth)

Artifact in dynamic imaging of the kidneys with $sup 131$I-o-iodohippurate

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bekier, A.; Bandhauer, K.

1974-02-01

An artifactural area of increased activity over the left lumbar region was observed in the radionuclide imaging of the kidneys with /sup 131/I-o- iodohippurate. The renal scan was falsely interpreted as a functionally reduced left kidney. The following renal arteriogram shows only a right renal artery. The agenesia of the left kidney was confirmed by a laparotomy. This artifact was probably due to gastric secretion of free /sup 131/I. (auth)

INCIDENCE OF HYPOTHYROIDISM AND RECURRENCES FOLLOWING I$sup 131$ TREATMENT OF HYPERTHYROIDISM

DOE Office of Scientific and Technical Information (OSTI.GOV)

Beling, U.; Einhorn, J.

1961-10-01

The incidences of hypothyroidism and its recurrence were studied in 791 patients at varying intervals after I/sup 131/ treatment of hyperthyroidism. Radiotherapy with I/sup 131/ tends to lead to hypothyroidism, both early and, especially, late. After a long remission, however, there is small likelihood of recurrence of hyperthyroidism. The influence of sex, age, type of goiter, and number of I/sup 131/ therapy doses administered on the incidence of hypothyroidism was studied. (auth)

STUDY OF THE INELASTIC SCATTERING OF ELECTRONS BY THE NUCLEI $sup 6$Li AND $sup 7$Li (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bernheim, M.; Bishop, G.R.

1963-11-01

We have measured the form factors for transitions to the following excited states by the inelastic scattering of electrons: 2.189, 3.57, and 4.52 Mev of /sup 6/Li; and 0.478, 4.61, 5.76, and 6.8 Mev of /sup 7/Li. The dependence of the form factors on the momentum transfer indicates the principal components of the wave functions describing these states. (auth)

Thermogravimetric Control of Intermediate Products in the Metallurgy of Uranium; CONTROL TERMOGRAVIMETRICO DE PRODUCTOS INTERMEDIOS DE LA METALURGIA DEL URANIO

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sanchez, L.G.; Cellini, R.F.

1959-01-01

The thermal decomposition of some intermediate compounds in the metallurgy of uranium such as uranium peroxide, ammonium uranate, ammonium uranium pentafluoride, uranium tetrafluoride, and UO/sub 2/, were studied using Chevenard's thermobalance. Some data on the pyrolysis of synthetic mixtures of intermediate compounds which may appear during the industrial processing are given. Thermogravimetric methods of control are suggested for use in uranium metallurgy. (tr-auth)

Building Maintenance and Repair Data for Life-Cycle Cost Analyses: Electrical Systems.

DTIC Science & Technology

1991-05-01

Repair Data for Life-Cycle Cost Analyses: Electrical Systems by Edgar S. Neely Robert D. Neathammer James R. Stirn Robert P. Winkler This research...systems have been developed to assist planners in preparing DD Form 1391 documentation, designers in life-cycle cost component selection, and maintainers...Maintenance and Repair Data for Life-Cycle Cost Analyses: RDTE dated 1980 Electrical Systems REIMB 1984 - 1989 6. AUTH4OR(S) Edgar S. Neely, Robert D

INHIBITION OF BONE GROWTH AS A COMPLICATION OF RADIUM THERAPY (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Shimanovskaya, K.B.

1961-08-01

S>Information is given on radiation injuries of the bone and teeth following repeated use of therapeutic doses of radiation in 20 persons: in 19 after treatment of skin angiomas of the face and chest, and in 1 after treating Ewing's sarcoma of the fibular bone. In 10 patients the changes in the bones were coupled with the presence of atrophy, teleangiectasis, and depigmentation of the skin over the changed bone. (auth)

The Use of Radioactivation Analysis in Biology; APPLICAZIONI DELL'ANALISI PER RADIOATTIVAZIONE ALLA BIOLOGIA

DOE Office of Scientific and Technical Information (OSTI.GOV)

Merlini, M.

1962-01-01

The principles of activation analysis and the methods of detection and measurement of radioactivity from neutron irradiated samples are described. The application of this method in different fields is mentioned. An example of the use of activation analysis in biology is given; and the results of a study on the manganese content in different parts of a lamellibranch, Unio mancus elongatus (Pfeiffer) of Lago Maggiore, are presented and discussed. (auth)

Ion Exchange and Its Connection to Industry. II. Calculation Methods for Installations; EL CAMBIO DE ION Y SU RELACION CON LA INDUSTRIA. II. METHODOS DE CALCULO DE INSTALACIONES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hueda, A.U.; Perez, B.L.; Jodra, L.G.

1960-01-01

A presentation is made of calculation methods for ionexchange installations based on kinetic considerations and similarity with other unit operations. Factors to be experimentally obtained as well as difficulties which may occur in its determination are also given. Calculation procedures most commonly used in industry are enclosed and explain with numerical resolution of a problem of water demineralization. (auth)

THE BORON-CURCUMIN COMPLEX IN TRACE BORON DETERMINATIONS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Heyes, M.R.; Metcalfe, J.

1963-01-01

A simple and robust method for the formation of the complex of boron with curcumin is described. The sensitivity of the method is 6.6 x 10/sup -5/ g/cm/sup 2/. Formation of the complex is believed to be quantitative under the conditions used and some evidence is given for a 1: 3 boron; curcumin ratio. Methods are outlined for the determination of boron in a number of metals, compounds, and organic materials. (auth)

RADIATION INFORMATION FROM 1958/delta/$sub 2$

DOE Office of Scientific and Technical Information (OSTI.GOV)

Basler, R.P.; DeWitt, R.N.; Reid, G.C.

1960-04-01

The telemetered radiation information from the satellite 1958 delta /sub 2/ (Sputnik III) was analyzed for 62 separate passes recorded in College, Alaska. The data indicate a dependence of radiation intensity on altitude in the range 250 to 500 km. Both the high- and the low-energy components apparently contribute to the over-all increase of intensity with altitude, but the presence of a continuous afterglow in the scintillating crystal prevented detailed interpretation of the results. (auth)

A SIX-DIMENSIONAL RIEMANNIAN MANIFOLD, ITS APPLICATIONS TO MESO- ELECTRODYNAMICS, AND A SYSTEMATIZATION OF STRONGLY INTERACTING PARTICLES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rayski, J.

1959-01-01

A conception of a six-dimensional world enables a geometrical interpretation of the electric charge, charge c onjugation, gauge transformations, and of the electromagnetic field. The same conception explains satisfactorily the isospin, its cornection with the electric charge, and the ps- scalar character of nuclear forces. Several qualitative and some quantitative properties of strongly interacting particles (strangeness, rest masses, etc.) find an intuitive explanation within this geometrical framework. (auth)

Computer program for determination of concentrations of trace elements in components of water systems by nondestructive activation analysis (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Slavic, I.; Draskovic, R.; Tasovac, T.

1973-03-01

A computer program for the determination of trace elements in components of the water systems bed material, suspended material, dissolved substances, plankton, algae) by nondestructive activation analysis was developed. Results of the determination of Cr, Sb, Sc, Fe, Co, Na, and La concentrations in suspended materials from the Danube river, obtained by interpretation of data with a CDC- 3600 computer (64 k words), are presented. (auth)

BEHAVIOR OF THE SAHARAN SCORPION ANDROCTONUS AMOREUXI (AUD. AND SAV.) AFTER EXPOSURE TO HIGH DOSES OF $gamma$ RADIATION AND AILMENTS FOLLOWING THIS IRRADIATION (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Niaussat, P.; Vachon, M.; Grenot, C.

1963-07-29

The relatively long evolution of radiation sickness in the scorpion Androctonus amoreuxi, after exposure to high gamma doses of 50,000 to 90,000 r confirms the high radioresistivity of this species. Behavior modifications because of shock to sensory and neuromotive centers, an acceleration of the cardiovascular rhythm, and a decrease of the body weight were established. (tr- auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Uresk, D.W.; Gilbert, R.O.; Rickard, W.H.

Big sagebrush (Artemisia tridentata) was subjected to a double sampling procedure to obtain reliable phytomass estimates for leaves, flowering stalks, live wood, dead wood, various combinations of the preceeding, and total phytomass. Coefficients of determination (R/sup 2/) between the independent variable and various phytomass categories ranged from 0.45 to 0.93. Total phytomass was approximately 69 +- 16 (+- S.E.) g/m/sup 2/. Reductions in the variance of the phytomass estimates ranged from 33 percent to 80 percent using double sampling assuming optimum allocation. (auth)

Diagonalizing Tensor Covariants, Light-Cone Commutators, and Sum Rules

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lo, C. Y.

We derive fixed-mass sum rules for virtual Compton scattering the forward direction. We use the methods of both Dicus, Jackiw, and Teplitz (for the absorptive parts) and Heimann, Hey, and Mandula (for the real parts). We find a set of tensor covariansa such that the corresponding scalar amplitudes are proportional to simple t-channel parity-conserving helicity amplitudes. We give a relatively complete discussion of the convergence of the sum rules in a Regge model. (auth)

THE COOLING REQUIREMENTS AND PROCESS SYSTEMS OF THE SOUTH AFRICAN RESEARCH REACTOR, SAFARI 1

DOE Office of Scientific and Technical Information (OSTI.GOV)

Colley, J.R.

1962-12-01

The SAFARI 1 research reactor is cooled and moderated by light water. There are three process systems, a primary water system which cools the reactor core and surroundings, a pool water system, and a secondary water system which removes the heat from the primary and pool systems. The cooling requirements for the reactor core and experimental facilities are outlined, and the cooling and purification functions of the three process systems are described. (auth)

ELECTROSTATIC ACCELERATORS (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gerbier, R.

1962-04-01

The various methods presently in use for producing the continuous high voltage necessary for the operation of electrostatic accelerators are reviewed. The methods considered are voltage multiplier units (Greinacher and Morganstern types) and electrostatic instruments (Van de Graaff and Trump machines and Felici rotnting cylinder instruments). The electrostatic accelerators used at Grenoble which give currents of several milliamperes at voltages up to 1.2 Mv are described. In this energy region electron accelerators and neutron generators offer very interesting possibilities. (auth)

POLONIUM-210: A VOLATILE RADIOELEMENT IN CIGARETTES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Radford, E.P. Jr.; Hunt, V.R.

Polonium-210, which emits alpha particles, is a natural contaminant of tobacco. For an individual smoking bvo packages of cigarettes a day, the radiation dose to bronchial epithelium from Po/sup 210/ inhaled in cigarette smoke probably is at least seven times that from background sources, and in localized areas may be up to 1000 rem or more in 25 years. Radiation from this source may, therefore, be significant in the genesis of bronchial cancer in smokers. (auth)

Effect of x rays on the virulence of Theileria annulata (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Abramov, I.V.; Zablotskii, V.T.

1972-10-01

X irradiation of 3000 to 5000 R did not attenuate the virulence of Th. annulata in starving adult ticks, Hyalomma anatolicum, or suspensions from the organs of animals infected with the organism. A 7000-R irradiation of invaded material significantly decreased the virulence of Thelieriae that had maintained their immunogenicity. Doses of 10,000 and 15,000 R inactivated large horned cattle theileirosis in suspensions of the internal organs of sick animals. (tr- auth)

EFFECT OF GAMMA IRRADIATION AND AET ON RAT BLOOD CHOLINESTERASE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Williams, M.W.; Baker, R.D.; Covill, R.W.

1961-03-01

Whole-body gamma irradiation in the rat produced significant whole-blood cholinesterase depression on the tenth day at a dosage level of 75 r. The levels tested when plotted and extrapolared indicated threshold changes in cholinesterase activity would be in the vicinity of 20 to 30 r. AET alone, while producing some mild cholinesterase depression, failed to protect whole-blood cholinesterase activity from the effects of gamma irradiation at the levels of agent and irradiation tested. (auth)

LABELLING OF NUCLEIC ACID WITH RADIOACTIVE ISOTOPES AND THEIR APPLICATION (in Yugoslavian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Becarevic, A.; Hudnik-Plevnik, T.; Glisin, V.

The DNA of the liver and spleen of rats was labeled with P/sup 32/. The specific activity obtained was high enough to be able to follow the fate of these acids after injection in irradiated and non-irradiated rats. The results show that, after injection in the rats, the labeled kids were degraded into small fragmnts, which were utilized as building blocks for the synthesis of the big molecules of the cells. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rubin, R.L.; Doku, H.C.

In recent years, therapeutic radiology has been used extensively in the management of head and neck malignancies. An increasing number of the population who have been exposed to such therapy are being seen by the dentist for dental treatment. It is recognized that radiation therapy may cause temporary and permanent alterations in tissue. A discussion of the various therapeutic modalities and their side effects on the oral tissues has been presented to aid the dental practitioner in understanding the problems and care of such patients. (auth)

Longevity and age-related lesions in a laboratory colony of grasshopper mice, Onychomys leucogaster

DOE Office of Scientific and Technical Information (OSTI.GOV)

O'Farrell, T.P.; Cosgrove, G.E.

1975-07-01

Mated pairs of northern grasshopper mice, Onychomys leucogaster fuscogriseus, were maintained in a laboratory colony to determine their median longevity, maximum life span, and age-related pathologies. Median life span for both sexes and four cohorts was 1411 days and the maximum life span was 1915 days. There were no significant differences between sexes, but cohorts 5-7 generations removed from wild-caught parents had shorter median life spans. (auth)

Chemical processing in geothermal nuclear chimney

DOEpatents

Krikorian, O.H.

1973-10-01

A closed rubble filled nuclear chimney is provided in a subterranean geothermal formation by detonation of a nuclear explosive device therein, with reagent input and product output conduits connecting the chimney cavity with appropriate surface facilities. Such facilities will usually comprise reagent preparation, product recovery and recycle facilities. Proccsses are then conducted in the nuclear chimney which processes are facilitated by temperature, pressure, catalytic and other conditions existent or which are otherwise provided in the nuclear chimney. (auth)

Nitrodifluoraminoterphenyl compounds and processes

DOEpatents

Lerom, M.W.; Peters, H.M.

1975-07-08

This patent relates to the nitrodifluoraminoterphenyl compounds: 3,3''-bis (difluoramino)-2,2'' 4,4', 4'',6,6',6''-octanitro-m-terphenyl (DDONT) and 3,3''-bis(difluoramino)-2,2',2''4,4',4'',6,6',6''-nonanitro-m-terphenyl (DDNONA). Procedures are described wherein diamino precursors of the indicated compounds are prepared and the final compounds are obtained by a fluorination operation. The compounds are highly energetic and suitable for use as explosives and particularly in exploding bridge wire (EBW) detonators. (auth)

RADIATION BIOLOGY AND ISOTOPE UTILIZATION IN APPLIED BOTANY (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Glubrecht, H.

A short survey is given of the problems being studied in the Institute for Radiation Biology in the Technische Hochschule in Hannover. Extensive data are presented on a method of studying the effect of ionizing radiation on plant cells with the aid of UV microspectroscopy. From the change in UV absorption in ranges of a few mu , conclusions can be drawn as to the probability of primary ionizations in protein molecules and nucleic acids. (auth)

PROGRESS ON THE STUDY OF BETA TREATMENT OF URANIUM, APRIL 1, 1961 TO JULY 31, 1961

DOE Office of Scientific and Technical Information (OSTI.GOV)

Russell, R.B.; Wolff, A.K.

Progress on the work on the effect of variables affecting the beta treatment of uranium is described. Included are results on the effect of beta time and temperature on the as-quenched grain size, the influence of air delay before quenching, and the growth index of metal isothermally transformed at different temperatures. The relative effects of both size and cooling medium on the radial growth index are summarized. (auth)

THE DETERMINATION OF URANIUM BURNUP IN MWD/TON

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rider, B.F.; Russell, J.L. Jr.; Harris, D.W.

The mass-spectrometric and radiochemical methods for the determination of burn-up in nuclear fuel are compared for reliability in the range of 5000 to 15,000 Mwd/ton. Neither appears to be clearly superior to the other. Each appears to have an uncertainty of approximately 6 to 8%. It is concluded that both methods of analysis should be employed where reliability is of great concern. Agreement between both methods is the best possible indication of reliable results. (auth)

CASPER: A GENERALIZED PROGRAM FOR PLOTTING AND SCALING DATA

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lietzke, M.P.; Smith, R.E.

A Fortran subroutine was written to scale floating-point data and generate a magnetic tape to plot it on the Calcomp 570 digital plotter. The routine permits a great deal of flexibility, and may be used with any type of FORTRAN or FAP calling program. A simple calling program was also written to permit the user to read in data from cards and plot it without any additional programming. Both the Fortran and binary decks are available. (auth)

Integration of end-user Cloud storage for CMS analysis

DOE Office of Scientific and Technical Information (OSTI.GOV)

Riahi, Hassen; Aimar, Alberto; Ayllon, Alejandro Alvarez

End-user Cloud storage is increasing rapidly in popularity in research communities thanks to the collaboration capabilities it offers, namely synchronisation and sharing. CERN IT has implemented a model of such storage named, CERNBox, integrated with the CERN AuthN and AuthZ services. To exploit the use of the end-user Cloud storage for the distributed data analysis activity, the CMS experiment has started the integration of CERNBox as a Grid resource. This will allow CMS users to make use of their own storage in the Cloud for their analysis activities as well as to benefit from synchronisation and sharing capabilities to achievemore » results faster and more effectively. It will provide an integration model of Cloud storages in the Grid, which is implemented and commissioned over the world’s largest computing Grid infrastructure, Worldwide LHC Computing Grid (WLCG). In this paper, we present the integration strategy and infrastructure changes needed in order to transparently integrate end-user Cloud storage with the CMS distributed computing model. We describe the new challenges faced in data management between Grid and Cloud and how they were addressed, along with details of the support for Cloud storage recently introduced into the WLCG data movement middleware, FTS3. Finally, the commissioning experience of CERNBox for the distributed data analysis activity is also presented.« less

Integration of end-user Cloud storage for CMS analysis

DOE PAGES

Riahi, Hassen; Aimar, Alberto; Ayllon, Alejandro Alvarez; ...

2017-05-19

End-user Cloud storage is increasing rapidly in popularity in research communities thanks to the collaboration capabilities it offers, namely synchronisation and sharing. CERN IT has implemented a model of such storage named, CERNBox, integrated with the CERN AuthN and AuthZ services. To exploit the use of the end-user Cloud storage for the distributed data analysis activity, the CMS experiment has started the integration of CERNBox as a Grid resource. This will allow CMS users to make use of their own storage in the Cloud for their analysis activities as well as to benefit from synchronisation and sharing capabilities to achievemore » results faster and more effectively. It will provide an integration model of Cloud storages in the Grid, which is implemented and commissioned over the world’s largest computing Grid infrastructure, Worldwide LHC Computing Grid (WLCG). In this paper, we present the integration strategy and infrastructure changes needed in order to transparently integrate end-user Cloud storage with the CMS distributed computing model. We describe the new challenges faced in data management between Grid and Cloud and how they were addressed, along with details of the support for Cloud storage recently introduced into the WLCG data movement middleware, FTS3. Finally, the commissioning experience of CERNBox for the distributed data analysis activity is also presented.« less

EXPERIMENTAL USEFULNESS OF THE KANGAROO RAT

DOE Office of Scientific and Technical Information (OSTI.GOV)

Haley, T.J.

1963-09-13

The kangaroo rat is readily tamed and has certain characteristics that make it unique and of interest in highly specialized research programs. Studies were conducted on its ability to exist on a dried diet with only a bare minimum of water and that obtained from succulent plants. Hematological studies indicate that the kangaroo rat exhibits a different hematological distribution of cells than the mouse or rat. The lymphocyte constitutes 81.4% of the total leokocytes. The hematocrit has a value of 46 to 48 in spite of the high degree of water conservation practiced by the animal. The response to ionizingmore » radiation of this species does not differ from that reported for the mouse or rat. Behavior studies indicate that the digging characteristics of the kangaroo rat are similar to those of the gerbil. Furthermore, the animal shows definite psychotic tendencies under the influence of psychotomimetics like LSD-25 and psilocybin. An evaluation of the physiological responses of isolated tissues from this animal as well as its responses to anesthetics is being undertaken to evaluate its further usefulness in the laboratory. (auth)« less

INTERACTION OF X AND ULTRAVIOLET RADIATION IN PRODUCTION OF RECESSIVE LETHALS IN DROSOPHILA MELANOGASTER (in Italian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Nicoletti, B.; Olivieri, G.

1962-01-01

The possibility that uv rays given to different biological systems before or after x rays could modify genetic or cytological effects is reviewed and discussed. Kaufmann and Hollaender's conclusions about the recovering effect of uv rays on chromosomal damage induced in Drosophila sperms by a pre-treatment of x rays are discussed and analyzed taking into accourt some general considerations. Preliminary results of similar experiments on the frequency of sex-linked recessive lethals induced after single and combined x + uv treatments in Drosophila sperms are reported. All our experiments indicate no effect of the uv treatment (at the given wave lengthsmore » and doses) in lowering the frequency of the x-ray-induced recessive lethals. On the contrary, there are some indications for a synergistic action between the two radiations. These results not in agreement with the generally accepted theory that uv rays do recover X-ray- induced chromosomal damages, could be expiained With the well established correlation between chromosomal rejoined breaks and genic mutations. (auth)« less

Detection of early changes in lung cell cytology by flow-systems analysis techniques, July 1--December 31, 1975

DOE Office of Scientific and Technical Information (OSTI.GOV)

Steinkamp, J.A.; Ingram, M.; Hansen, K.M.

1976-03-01

This report summarizes results of preliminary experiments to demonstrate the feasibility of using automated flow-systems analysis in detecting early changes of respiratory epithelium exposed to physical and chemical agents associated with the by-products of nonnuclear energy production. The Syrian hamster was selected as the experimental test animal to begin investigation of the effects of toxic agents to cells of the respiratory tract. Since initiation of the program approximately six months ago, the goals have been acquisition of adequate numbers of exfoliated cells from the lung; adaptation of cytological techniques developed on human exfoliated gynecological samples to hamster lung epithelium formore » obtaining single-cell suspensions; utilization of existing cell staining methods to measure DNA content in lung cells; and analysis of DNA content and cell size. As the flow-system cell analysis technology is adapted to the measurement of exfoliated lung cells, rapid and quantitative determination of early changes in the physical and biochemical cellular properties will be attempted as a function of exposure to the toxic agents. (auth)« less

CARBON-14 FIXATION IN POLLEN OF YELLOW LUPINE (LUPINUS LUTEUS LINN.)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schwien, W.G.; Frazier, J.C.; Moser, H.C.

1962-10-31

Carbon-14 fixation studies were made on germinated pollen of yellow lupine to ascertain whether the chlorophyll reported to be in these grains was functional photosynthetically. Light and dark exposures to atmospheres containing 20 and 500 mu c of carbon-14 labeled carbon dioxide were made for 1.5 and 45 minutes, respectively. The exposed pollen was extracted in 80% ethanol, the resulting extract reduced in volume, and chromatographed two dimensionally. When the chromatograms were cut inio numbered small squares and their activity counted in an automatic sample counting system, a marked similarity was observed in the pattern of radioactivity from all exposures.more » Eluting and co- chromatographing this activity from the squares, with known standards, demonstrated labeling to be specific to certain intermediates of the Krebs cycle and their derived amine acids. The labeling in these intermediates and the absence of labeling in photosynthetic metabolites is strong evidence that only respiratory fixation of carbon-14 occurs in the germinated pollen of this variety of yellow lupine under the conditions of the experiment. (auth)« less

BIOCHEMICAL CHANGES IN TUMOR CELLS AFTER TREATMENT WITH X RAYS, IODOACETATE, HYDROGEN PEROXIDE, AND ETHYLENIMINOBENZOQUINONE (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Maass, H.; Kunkel, H.A.

1960-07-01

Results are reported from biochemical investigations on tumor cells after treatment with various physical and chemical agents. If the effects of x rays, iodo-acetate, H/sub 2/O/sub 2/, and several ethyleneimino-benzoquinones on the carbchydrate metabolism are compared, very similar mechanisms of action are observed. These four agents inhibit the dehydrogenation of triosephosphate; but in the case of iodoacetate. an inactivation of triosephosphatedehydrogenase seems to be the reason for this inhibition. In irradiated cells, however, this enzyme is not inactivated, the delay of dehydrogenation being caused mainly by a loss of DPN. After application of cytostatic agents and H/sub 2/O/sub 2/, amore » similar mechanism can be suggested although both agents are also able to block this enzyme. On the other hand, the reaction of the DNA-synthesis is different. Here a much greater sensitivity to x rays and to cytostatic agents than in the case of glycolysis is observed. lodo-acetate, however, inhibits DNA-synthesis in the same range of concentrations in which the glycolysis is blocked. (auth)« less

DETERMINING THE EFFECT OF ANIMAL MATURITY AND FAT DISTRIBUTION ON THE QUALITY OF IRRADIATED BEEF. Report No. 5 (Progress) for Period: December 6, 1958 to June 5, 1959

DOE Office of Scientific and Technical Information (OSTI.GOV)

Henrickson, R.L.

1960-10-31

Ground beef and longissimus dorsi steaks from 24-month old animals are being evaluated for irradiation flavor. The fat content of the two lots of ground beef are 6.8 and 31.8%. Samples from animals 6 months old are also being evaluated. The fat content being studied is 6.9 and 27.3%. Taste panel data do not indicate major difference in flavor among steak from different animals of similar breeding. However, there did appear to be some difference in irradiation intensity. Aging the steak before irradiation did not greatly improve the flavor of the irradiated product. Irradiation does however make beef more tender.more » When cystine was irradiated in pure solution, carbonyls were found to be present in greater quantities than in non-irradiated cystine. Ammonia was also found to increase as the concentration was increased. Various cultures of bacteria were isolated from longissimus dorsi steak broiled at 150 tained F and irradiated with 5 x 10/sup 6/ rads of gamma rays. (auth)« less

EVALUATION OF FACTORS IN THE ELUTION OF HYDROCORTISONE FROM PAPER CHROMATOGRAMS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ganis, F.M.; Hendrickson, M.W.; Giunta, P.D.

An assessment was made of a number of variable factors which affect the recovery of hydrocortisone from eluted filter paper chromatographic fractions. Factors tested included time of elution, sample concentration, rinsing of eluting fractions and pre-washing of the filter paper. It was noted that a 50 mu g sample could be quantitatively recovered after a 15-minute elution time from a pre-washed filter paper fraction. The results were subjected to a statistical analysis and were found to be highly significant. (auth)

THE HOT CRITICAL ASSEMBLY $sub 4$CESAR$sub 4$ (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Tanguy, P.

1963-07-01

With Cesar, the Cadarache Center for Nuclear Studies will be equipped with a zero-power critical assembly, which will enable it to obtain the data necessary for the development of natural uranium, graphite, gas reactors. Reactivity balance, evolution of the reactivity, and deformation of the flux curves are to be studied. These studies will complement those already being done on Marius, but carried out at room temperature; in Cesar the graphite temperature can reach 500 deg C. (auth)

GONAD DOSES IN THE X IRRADIATION OF SOME SO-CALLED MILD ILLNESSES (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Glauner, R.; Messner, D.; Thelen, P.O.

1958-10-01

Measurements of gonad doses were carried out on men and women using ionization chambers. In women the measurements were made in the vagina. Gonad doses were measured in patients who received x-ray therapy for puerperal mastitis, sweat gland abscesses in the axilla, and furunculi of the face. The conditions of irradiation, as well as the single and total doses, are briefiy discussed. Various means of reducing gonad dose are discussed in detail. (auth)

STUDY OF THE U/Th RATIO IN A THORITE FROM KIVU (BELGIAN CONGO) WITH REGARD TO ITS UTILIZATION IN THE PREPARATION OF THORIUM STANDARDS FOR GAMMA SPECTROMETRY (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Poulaert, G.

1958-01-01

The uranium and thorium contents of a thorite from Kivu were determined. The very low U/Th ratio found makes this mineral a good standard for gamma spectrometry and fer all other direct radiometric measurements of thorium. The mineral was used in the preparation of ThB standards for the determination of the absolute age of rocks and minerals. (tr-auth)

EFFICIENCY OF THE FILTERS AGAINST RADIOACTIVE AEROSOL. ON THE RADIOACTIVE CONTAMINATION AND ITS REMOVAL (in Japanese)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Miura, T.; Kimura, K.

1959-12-01

Dust filters were examined using a radioactive solidaerosol, decay product daughters of Rn/sup 220/. An examination with a thermal precipitator revealed that the major part of particles in the radioactive aerosol were smaller than 0.5 mu in diameter. Twenty-one kinds of filters were tested. The filtering efficiency was highest in asbestos fiber filters. A radioautographic examination revealed that the radioactive substance penetrated as deep as 1.4 to 1.5 mm into the filter layer. (auth)

Separation of Calcium Isotopes by Counter-Current Electro-Migration in Molten Salts; SEPARATION DES ISOTOPES DU CALCIUM PAR ELECTRO-MIGRATION A CONTRECOURANT EN SELS FONDUS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Menes, F.; Dirian, G.; Roth, E.

1962-01-01

The method of counter-current electromigration in molten salts was applied to CaBr/sub 2/ with an alkali metal bromide added to the cathode compartment. Enrichments on Ca/sup 46/ greater than a factor of two were obtained at the anode. The mass effect was found to be about 0.06. An estimation of the cost of energy for a process based on this method was made. (auth)

THE BEHAVIOR OF STRONTIUM-90 IN SOILS AND PLANTS AND AGRICULTURAL PRECAUTIONS FOR LESSENING THE STRONTIUM-90 CONTAMINATION OF FOOD (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Scheffer, F.; Ludwieg, F.

The development of dirty atom bombs (hydrogen bombs with a uranium mantle) and the resultant high radioactive fall-out have made the strontium-90 contamination of foodstuffs a serious problem for humanity. The literature of recent years is used to survey the behavior of strontium-90 in plants and soil, and to discuss agricultural measures which could be taken to lessen the contamination of foodstuffs in case of atomic warfare. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ronchi, C.; Sari, C.

Lenticular pore migration rates in oxide nuclear fuels were measured in out-of-pile heating experiments. It is deduced that those pores which are in part responsible for the formation of columnar grains, are only produced in the absence of relevant amourts of filling gas. Specimens containing important concentrations of He, produced by Pu alpha decay, show columnar grain restructuring by grain boundary migration. Some consequences are drawn concerning the possible role played by lenticular pores in the mechanisms of fission gas release from nuclear fuels. (5 figures) (auth)

Two-cluster structure of some alpha-scattering resonances in the sd shell

DOE Office of Scientific and Technical Information (OSTI.GOV)

Budzanowski, A.; Grotowski, K.; Strzalkowski, A.

1975-01-01

The excitation functions of the elastic scattering of alpha particles at backward angles on $sup 24$Mg and $sup 28$Si nuclei in the energy range from 23 to 28 MeV measured by Bobrowska et al. exhibit distinct maxima. It was shown that these maxima are not correlated with the structures seen in the excitation functions of the ($alpha$,$alpha$') and ($alpha$,p) reactions leading to low- lying excited states of the final nucleus possibly indicating the presence of Ericson fluctuations. (auth)

Kinetics of Thermal Neutrons in a Time-of-Flight Spectrometer. I. Probability of Transmission of Neutrons through a Revolving Slit; CENETICA DEI NEUTRONI LENTI IN UNO SPETTROMETRO A TEMPO DI VOLO. I-PROBABILITA DI TRANSMISSIONE DEI NEUTRONI ATTRAVERSO UNA FENDITURA RUOTANTE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Marseguerra, M.; Pauli, G.

1958-07-01

The kinetic behavior of thermal neutrons in a time-offlight spectrometer is examined. An analytical method for obtaining the expressions for the probability for slow neutron transmission through a revolving slit (the general case of a curved slit is considered) is presented and discussed in detail. (auth)

FREE-SURFACE SEPARATION OF STEAM AND WATER FOR APPLICATION IN A MARINE REACTOR AT 1000 PSIG

DOE Office of Scientific and Technical Information (OSTI.GOV)

Steamer, A.G.; Ongman, H.D.

1960-07-13

A series of free-surface steam separation tests were carried out at 1000 psig to obtain data to aid in checking out analytical methods for the effect of ship-s motion on steam separation. Data are presented on the shape and height of the steam-water interface with respect to the indicated water level for two vessel sizes. Further data are presented on the effects of water level and downcomer water velocity on steam carryunder. (auth)

POTASSIUM AS AN INDEX OF NATURALLY OCCURRING RADIOACTIVITY IN TUNA MUSCLE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Chakravarti, D.; Joyner, T.

1959-06-30

Determinations of the potassium levels of light and dark muscle tissues were made for tuns fish samples from the Central Pacific. The mean potassium content was determined to be 2.3 mg/g for these tissues and was used as an index to calculate the radioactivity to be expected from K/sup 40/ at 4.2 dis/min per gram of wet tissue. The levels of potassium in light and dark muscle samples were not significantly different. (auth)

Eight-Liter Hydrogen-Deuterium Bubble Chamber in Magnetic Field; VOS MILITROVAYA VODORODNO-DEITERIEVAYA PUZYR'KOVAYA KAMERA V MAGNITNOM POLE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Blokhintseva, T.D.; Vasilenko, A.T.; Grebinnik, V.G.

1961-01-01

A design of an 8-liter hydrogen-deuterium bubble chamber is described, and its operating characteristics are given. The chamber is a metal-glass device with the vertical location of its working volume. The chamber is illuminated by means of a lens. In the expansion system the bellows are used. The magnetic field is 12000 oersted in the working volume. The operating cycle of the chamber does not exceed 2 secs. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Buchanan, J. R.

The risks of nuclear power and radiation are described to place them in perspective with other potential hazards faced by the public on a day-to-day basis in our complex industrial society. Twenty articles on this general topic that have appeared in Nuclear Safety are reprinted, since they collectively form a valuable reference source. Topics covered include the effects of radiation, riskbenefit concepts, radiation risks relative to other risks, nuclear plant risks relative to fossil plant risks, licensing requirements, nuclear insurance, nuclear industry safety record, and public attitudes. (auth)

Artificial Neural Network Approaches in Guidance and Control (Les Reseaux Neuroniques Artificiels, Voie a Explorer dans le Domaine du Guidage et du Pilotage)

DTIC Science & Technology

1991-09-01

34 ofetworker eqmpleuoaorreation withbounethat basis vectors (Lawley & Maxwell , 1963). naletwk arn ungd eqatsi wthe boune E It is possible to think of the...passive sonar system IJCNN- signal Aerospace Technology Center, John 89 Washington proceedings Hopkins University) Analysis of hidden Succesful use of...establish the weighted equations and C3 applications interconnmctions of the net and electronic feedback based AUTH: A/CONNELL, JOHN C ., JR. CORP, Naval

Activated phosphors having matrices of yttrium-transition metal compound

DOEpatents

De Kalb, E.L.; Fassel, V.A.

1975-07-01

A method is described for preparing a phosphor composition containing a lanthanide activator element with a host matrix having a transition element as a major component. The host matrix is composed of certain rare earth phosphates or vanadates such as YPO$sub 4$ with a portion of the rare earth replaced with one or more of the transition elements. On x-ray or other electromagnetic excitation, trace lanthanide impurities or additives within the phosphor are spectrometrically determined from their characteristic luminescence. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lipshultz, L.I.; Corriere, J.N. Jr.

Technetium-99m radioactive colloid particles were suspended in an iodine- 131 Hippuran radioactive fluid medium and placed into the bladders of six patients. Two normal patients and one with only one urinary tract infection voided the fluid and particles synchronously, while three with recurrent urinary tract infections eliminated the particles at a much slower rate than the fluid. A change in either the physical contour or secretory activity of the bladder urothelium is postulated as the cause of particle retention in these patients with chronic infections. (auth)

FLUX-TRAP REACTOR WITH ABSORBER IN THE CENTER

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ergen, W.K.

1958-03-01

An idealized flux-trap reactor is modified by the insertion of absorber. It is shown that, for appreciable absorption, a flux depression results, and the remaining flux is proportional to the diffusion constant D times the center flux in the nonabsorption case. This factor D just cancels the factor 1/D in the expression for this center flux so that the flux in the case with absorber is independent of D. In the case with absorber the advantage of Be and BeO largely disappears. (auth)

Transient three-dimensional thermal-hydraulic analysis of nuclear reactor fuel rod arrays: general equations and numerical scheme

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wnek, W.J.; Ramshaw, J.D.; Trapp, J.A.

1975-11-01

A mathematical model and a numerical solution scheme for thermal- hydraulic analysis of fuel rod arrays are given. The model alleviates the two major deficiencies associated with existing rod array analysis models, that of a correct transverse momentum equation and the capability of handling reversing and circulatory flows. Possible applications of the model include steady state and transient subchannel calculations as well as analysis of flows in heat exchangers, other engineering equipment, and porous media. (auth)

SLOW-NEUTRON SCATTERING BY MOLECULES OF LIQUID METHANE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rogalska, Z.

1962-10-01

The total slow neutron scattering cross section of liquid methane molecules as a function of neutron energy was measured. Agreement between experimental results and the theoretical curve, calculated on the basis of the Krieger and Nelkin theory for gaseous methane, was found. The most reasonable interpretation of this agreement was attributed to the fact that there exists a free rotation of molecules in liquid methane. It might be concluded that a free rotation is maintained at the transition from gas to liquid. (auth)

ASTRONAUTICS INFORMATION. OPEN LITERATURE SURVEY, VOLUME III, NO. 2 (ENTRIES 30,202-30,404)

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1961-02-01

<>15:014925. An annotated list of references on temperature control of satellite and space vehicles is presented. Methods and systems for maintaining vehicles within tolerable temperature bounds while operating outside planetary atmospheres are outlined. Discussions of the temperature environment in space and how it might affect vehicle operation are given. Re-entry heating problems are not included. Among the sources used were: Engineering Index, Applied Science and Technology Index, Astronautics Abstracts, PAL uniterm index, ASTIA, and LMSD card catalog. (auth)

Isotope Analysis of Uranium by Optical Spectroscopy; ANALYSE ISOTOPIQUE DE L'URANIUM PAR SPECTROSCOPIE OPTIQUE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gerstenkorn, S.

1958-06-01

Isotopic analysis of urarium is made by means of hollow cathode lamp and a Fabry-Perot photoelectric spectrometer. The line U/sup 235/, 5027 A is used. This method allows a deterraination of the isotopic concentrations in U /sup 235/ down to 0.1%. The relative precision is about 2% for amounts of U/sup 235/ over 1%. For weaker amounts this line allows relative measurements of better precision when using standard mixtures. (auth)

ABSORPTION OF I$sup 131$ BY THYROID GLAND IN ATHLETES DURING PHYSICAL EXERTION

DOE Office of Scientific and Technical Information (OSTI.GOV)

Khorol, I.S.

Radioiodine absorption by the thyroid gland after prolonged physical exercise (3000 m race) was studied in 16 athletes, aged 20 to 24 years. Two hours after administration of the isotope the level of its accumulation in the gland was halved. In 24 and 72 hours the content of radioiodine in the gland was higher than in experimental conditions without physical exercise. The phenomenon described evidently reflects the normal reaction of the thyroid gland of athletes to habitual physical exercise. (auth)

EXPERIMENTS WITH PLASMA RINGS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Alfven, H.; Lindberg, L.; Mitlid, P.

1960-03-01

The construction of a coaxial plasma gun is described. At its output end the gun is provided with a radial magnetic field, which is trapped by the plasma. The plasma from the gun is studied by photographic and magnetic methods. It is demonstrated that the gun produces magnetized plasma rings with the same basic structure as the rings obtained in toroidal pinch experiments. When the plasma rings are formed, the magnetic field lines from the gun break, a result which is of interest from a theoretical point of view. (auth)

Zircon Carburation Studies as Intermediate Stage in the Zirconium Fabrication; ESTUDIOS ENCAMINADOS A LA CARBURACTION DEL CIRON COMO ETAPA INTERMEDIA EN LA OBTENCION DE CIRCONIO

DOE Office of Scientific and Technical Information (OSTI.GOV)

Huertas, V.A.; Gonzalez, L.S.; Lopez, M.

1963-01-01

Zirconium carbide and carbonitride mixtures were obtained by Kroll's method. Reaction products were identified by micrography and x-ray diffraction analysis. The optimum graphite content in the initial charge for the carburization reaction was studied. Zirconium, silicon, and carbon content in the final product was controlled as a function of current in the furnace and reaction time. Further chlorination of the final product was performed successfully. (auth)

Catalytic Reduction of Hexavalent Uranium by Formic Acid; RIDUZIONE CATALITICA DELL'URANIO ESAVALENTE MEDIANTE ACIDO FORMICO

DOE Office of Scientific and Technical Information (OSTI.GOV)

Cogliati, G.; Lanz, R.; Lepscky, C.

1963-10-01

S>The catalytic reduction of U(VI) to U(IV) by means of formic acid has been studied, considering particularly the uranyl nltrate solutions, This process will be applied in the urania--thoria mixed fuel reprocessing plant, (PCUT). Various catalysts have been tested and the influence of formic acid concentration, temperature and catalyst concentration on the reaction rate have been determined. A possible reduction mechanism coherent with Ihe experimental data is discussed. (auth)

THE BORON-CURCUMIN COMPLEX IN THE DETERMINATION OF TRACE AMOUNTS OF BORON

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hayes, M.R.; Metcalfe, J.

1962-12-01

A simple and robust method is described for the formation of the complex of boron with curcumin. The sensitivity of the method is 8.0 to 8.5 x 10/sup -5/ mu g per sq. cm by Sandell's definition. Formation of the complex is believed to be quartitative under the conditions used, and some evidence is given for a ratio of boron to curcumin of 1 to 3. Methods are outlined for determining boron in some metals, compounds, and organic materials. (auth)

Apparatus for producing laser targets

DOEpatents

Jarboe, T.R.; Baker, W.R.

1975-09-23

This patent relates to an apparatus and method for producing deuterium targets or pellets of 25u to 75u diameter. The pellets are sliced from a continuously spun solid deuterium thread at a rate of up to 10 pellets/second. The pellets after being sliced from the continuous thread of deuterium are collimated and directed to a point of use, such as a laser activated combustion or explosion chamber wherein the pellets are imploded by laser energy or laser produced target plasmas for neutral beam injection. (auth)

LECTURES ON GAME THEORY, MARKOV CHAINS, AND RELATED TOPICS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Thompson, G L

1958-03-01

Notes on nine lectures delivered at Sandin Corporation in August 1957 are given. Part one contains the manuscript of a paper concerning a judging problem. Part two is concerned with finite Markov-chain theory amd discusses regular Markov chains, absorbing Markov chains, the classification of states, application to the Leontief input-output model, and semimartingales. Part three contains notes on game theory and covers matrix games, the effect of psychological attitudes on the outcomes of games, extensive games, amd matrix theory applied to mathematical economics. (auth)

Copernicus ultraviolet spectra of OB supergiants with strong stellar winds

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hutchings, J.B.

1976-03-01

Spectral scans at approximately 0.2 A resolution have been obtained in the far-ultraviolet of eight stars which have high mass-loss rates from stellar winds. The P Cygni characteristics of the line profiles appear to vary inversely as the mass flow rate, and in P Cygni itself the C III lambda 1175 line shows no velocity shift, or emission. It is suggested that higher mass flow rates occur through a denser, slower moving envelope in which collisional interactions are important. (auth)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Chimonas, G.

We consider the motion of a sporadic E layer initially located at the top of the E region near the node of the north-south component of the tidal wind. We find that, as the layer descends to follow the phase progression of the winds, the relative enhancement of the importance of the cast-west wind component can erode the layer trapping mechanisms til at some instant it fails, and the layer is freed. Thereupon it moves with a much greater vertical velocity than it did formerly until it reaches a new trapping location. (auth)

THE DETERMINATION OF BORON IN METHYL ALCOHOL DISTILLATES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Spicer, G.S.

1959-07-01

The distiilate is mixed with water, sodium hydroxide, and glycerol and evaporated to dryness. After ignition the boron is determined colorimetrically by its reaction with curcumin. This method is applicable to pure distillates of mthanol of less than 150 ml in volume. About 2 to 25 mu g is a suitable quantity of boron for determination, and the limit of detection is 0.05 mu g. In the above range the error should not exceed plus or minus 2%. (auth)

THE DEPENDENCE OF ION AND ELECTRON MOBILITY UPON MOLECULAR STRUCTURE IN DIELECTRIC LIQUIDS (in German)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Adamczewski, I.

1961-09-01

The viscosity coefficient of dielectric liquids was found to be dependent upon molecular structure and temperature. From this a general formula for ion and electron mobility was derived. This formula includes the dependence of mobility upon molecular structure and temperature, thus making it possible to give a theoretical explanation of other published experimental results. In addition, the formula can be used to calculate ion mobility for a number of other liquids at various temperatures. (auth)

Laser-enhanced chemical reactions and the liquid state. II. Possible applications to nuclear fuel reprocessing

DOE Office of Scientific and Technical Information (OSTI.GOV)

DePoorter, G.L.; Rofer-DePoorter, C.K.

1976-01-01

Laser photochemistry is surveyed as a possible improvement upon the Purex process for reprocessing spent nuclear fuel. Most of the components of spent nuclear fuel are photochemically active, and lasers can be used to selectively excite individual chemical species. The great variety of chemical species present and the degree of separation that must be achieved present difficulties in reprocessing. Lasers may be able to improve the necessary separations by photochemical reaction or effects on rates and equilibria of reactions. (auth)

GRAVIMETRIC DETERMINATION OF PLATINIUM, PALLADIUM, RUTHENIUM, RHODIUM AS TlPtS$sub 3$, TlPd$sub 2$S$sub 3$, TlRu$sub 2$S$sub 6$, TlRh$sub 2$S$sub 4$ (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rudnev, N.A.; Malofeeva, G.I.

1963-07-01

Gravimetric methods were developed for the determination of microamounts of Ru, Rh, Pt, and Pd as TlRu/sub 2/S/sub 6/, TlRh/sub 2/S/sub 4/ TlPtS/sub 3/, and TlPd/sub 2/S/sub 3/. The methods are simpl e, rapid, and satisfactorily accurate. (auth)

ENDF/B-IV fission-product files: summary of major nuclide data

DOE Office of Scientific and Technical Information (OSTI.GOV)

England, T.R.; Schenter, R.E.

1975-09-01

The major fission-product parameters [sigma/sub th/, RI, tau/sub 1/2/, E- bar/sub $beta$/, E-bar/sub $gamma$/, E-bar/sub $alpha$/, decay and (n,$gamma$) branching, Q, and AWR] abstracted from ENDF/B-IV files for 824 nuclides are summarized. These data are most often requested by users concerned with reactor design, reactor safety, dose, and other sundry studies. The few known file errors are corrected to date. Tabular data are listed by increasing mass number. (auth)

Managing Permanent Objects

DTIC Science & Technology

1984-11-01

nsthe temptation is great for a p- crammer to ute the ad hoe solution. He says: ’I don’t Want to get involved with the com-plinxity of auth-and-such...certain pieces of input then the consistency rules must be specifed and be part of the system. Unfortunately, the specification of the t consistency... rules may be non-trivial (a-d a task in which the programmer may be unwilling to engage). In addition, if the data storap system is to be relatvely

Some effects of irradiation on the tick Rhipicephalus appendiculatus

DOE Office of Scientific and Technical Information (OSTI.GOV)

Purnell, R.E.; Dargie, J.D.; Gilliver, B.

1972-06-01

A series of experiments to study the effects of gamma irradiation on the tick, Rhipicephalus appendiculatus, is described. It was intended to define the tolerance limits to irradiation of different stages of the tick so that a subsequent series of experiments could be carried out to study the effects on developmental stages of Theileria parva in the tick and also to explore the possibility of producing sterile male ticks in spite of the obvious difficulties of attempting to use this technique for tick eradication. (auth)

Liquid metal fast breeder reactors, 1972--1973

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1974-01-01

Reference to 1467 publications on liquid sodium fast breeder reactors cited in Nuclear Science Abstracts Volume 26 (1972) through Volume 27 (1973 through June) are contained in this citation to provide information on the contents of the document. References are arranged in order by the original NSA abstract number which approximately places them in chronological order. Sequence numbers appear beside each reference, and the personal author index refers to these sequence numbers. The subject index refers to the original abstract numbers. (auth)

The Muon System of the Daya Bay Reactor Antineutrino Experiment

DOE PAGES

An, F. P.; Hackenburg, R. W.; Brown, R. E.; ...

2014-10-05

The Daya Bay experiment consists of functionally identical antineutrino detectors immersed in pools of ultrapure water in three well-separated underground experimental halls near two nuclear reactor complexes. These pools serve both as shields against natural, low-energy radiation, and as water Cherenkov detectors that efficiently detect cosmic muons using arrays of photomultiplier tubes. Each pool is covered by a plane of resistive plate chambers as an additional means of detecting muons. Design, construction, operation, and performance of these muon detectors are described. (auth)

Apparatus for blending small particles

DOEpatents

Bradley, R.A.; Reese, C.R.; Sease, J.D.

1975-08-26

An apparatus is described for blending small particles and uniformly loading the blended particles in a receptacle. Measured volumes of various particles are simultaneously fed into a funnel to accomplish radial blending and then directed onto the apex of a conical splitter which collects the blended particles in a multiplicity of equal subvolumes. Thereafter the apparatus sequentially discharges the subvolumes for loading in a receptacle. A system for blending nuclear fuel particles and loading them into fuel rod molds is described in a preferred embodiment. (auth)

NEUTRON ENERGY LEVELS IN A DIFFUSE POTENTIAL

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ghosh, A.; Sil, N.C.

1960-06-01

The energy eigenvalues of neutrons within the nucleus for a spherically symmetrical potential V(r) = --V/sub 0/STAl + exp{(r-- R)/a}!/sup -1/ are investigated by following a new method of Lanczos for solving the differential equation. The s- and p-state energy levels are calculated for atomic mass 200 with the values of parameters adopted by Feshbach et al. in their calculation of the neutron strength function with a similar potential. The results of the calculation agree closely with those of Malenka. (auth)

Modification of the actions of some neuroactive drugs by growth hormone

DOE Office of Scientific and Technical Information (OSTI.GOV)

Tang, L.C.; Cotzias, G.C.

The flat serum growth hormone (GH) patterns of untreated parkinsonian patients develop diurnal rises during treatment with levodopa. This chronic exposure to excesses of GH might lead to the eventual emergence of the ''on-off'' phenomenon, which would indicate a need for animal experiments. Pretreatment of mice with GH increased (1) cerebral dopa and dopamine concentrations in levodopa-treated mice, (2) cerebral accumulation of injected tritiated apomorphine and tritiated thymidine, and (3) behavioral responses to levodopa, L-m-tyrosine, apomorphine hydrochloride, and oxotremorine. (auth)

Method of manufacturing lead electrodes for storage cells

DOEpatents

Jonville, P.; Stoehr, H.; Beccu, K.D.

1975-09-23

A method of manufacturing electrodes for lead storage batteries is described. Molten lead or lead alloy is deposited on a felt of glass fibers by spraying in a molten state to fill the space between the fibers of the felt to form an electrically conductive zone defining electrode contacts. A mass of powdered lead-based material is introduced into the felt by filtration for subsequently producing an active electrode mass by at least one electrochemical transformation. The felt is then cut into individual electrodes. (auth)

THE RECURRENT INTENSITY VARIATIONS OF PRIMARY COSMIC RADIATION IN PERIODS OF MAXIMUM SOLAR ACTIVITY (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Freon, A.; Berry, J.; Coste, J.-P.

1959-02-01

Some recordings of the variations of intensity of cosmic neutrons, made since October 1956 at the observatory of the Pic du Midi and since July 1957 on the Kerguelen Islands, have shown the existence, since the beginning of the observations and during at least 20 solar rotations, of a cyclic variation with a stable period equal to 27.35 plus or minus 0.1 solar days and a maximum amplitude of 2.2% attained in October 1957. (tr-auth)

Whole blood analysis rotor assembly having removable cellular sedimentation bowl

DOEpatents

Burtis, C.A.; Johnson, W.F.

1975-08-26

A rotor assembly for performing photometric analyses using whole blood samples is described. Following static loading of a gross blood sample within a centrally located, removable, cell sedimentation bowl, the red blood cells in the gross sample are centrifugally separated from the plasma, the plasm displaced from the sedimentation bowl, and measured subvolumes of plasma distributed to respective sample analysis cuvettes positioned in an annular array about the rotor periphery. Means for adding reagents to the respective cuvettes are also described. (auth)

Mechanical drive for blood pump

DOEpatents

Bifano, N.J.; Pouchot, W.D.

1975-07-29

This patent relates to a highly efficient blood pump to be used as a replacement for a ventricle of the human heart to restore people disabled by heart disease. The mechanical drive of the present invention is designed to operate in conjunction with a thermoelectric converter power source. The mechanical drive system essentially converts the output of a rotary power into pulsatile motion so that the power demand from the thermoelectric converter remains essentially constant while the blood pump output is pulsed. (auth)

Environmental sciences information storage and retrieval system

DOE Office of Scientific and Technical Information (OSTI.GOV)

Engstrom, D.E.; White, M.G.; Dunaway, P.B.

Reynolds Electrical and Engineering Co., Inc. (REECo), has since 1970 accumulated information relating to the AEC's Nevada Applied Ecology Group (NAEG) programs at the Nevada Test Site (NTS). These programs, involving extensive soil, vegetation, and small-animal studies, have generated informational data concerning the collecting, processing, analyzing, and shipping of sample materials to various program participants and contractors. Future plans include incorporation of Lawrence Livermore Laboratory's resuspension study data, REECo's on-site air data, and EPA's large-animal, off-site air, and off-site soil data. (auth)

Interactions of the NAEG information support project with other projects

DOE Office of Scientific and Technical Information (OSTI.GOV)

Pfuderer, H.A.

In the past year the Information Support Project to the Nevada Applied Ecology Group has interacted with many other research projects on the transuranics and other radionuclides. Group interactions through symposiums, workshops, and responding to search requests have proven to be mutually beneficial. The NAEG Information Support Project will draw on the information resources of the Oak Ridge National Laboratory to produce a bibliography of the radionuclides (other than the transuranics) of interest to the Nevada Test Site. (auth)

CROSS-RESISTANCE OF ESCHERICHIA COLI B TO PENICILLIN AND IONIZING RADIATION

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kutas-Mannhardt, V.

The radiosensitivity of cultures resistant to 1500 IU/ml, 2000 IU/ml, 2500 IU/ml of penicillin, produced from strain E. coli B was examined. Cultures in the log-phase were streaked in monocellular layers on the agar surface and exposed to x irradiation. As a result of penicillin treatment cell-filaments consisting of several segments were formed. Measurement of viability of x- irradiated cultures proved that penicillin resistant cultures are considerably more radioresistant than the parent strain B, non-treated with penicillin. (auth)

Vulcanism and Radiocarbon Dates

DOE R&D Accomplishments Database

Libby, L. M.; Libby, W. F.

1972-10-01

We consider whether the long term perturbation of radiocarbon dates, which is known to be approximately a sin function of period about 8000 years and amplitude of about 8% peak-to-peak, could have been caused in any major part by vulcanism. We conclude that this is not the case. On the contrary, present day volcanoes are a far less important source of inert CO{sub 2} (about 100 fold less) than is man's burning of fossil fuels which has caused the Suess dilution of about 2%. (auth)

Unified space--time trigonometry and its applications to relativistic kinematics

DOE Office of Scientific and Technical Information (OSTI.GOV)

Jaccarini, A.

1973-06-15

A geometrical approach to relativistic kinematics is presented. Owing to a unified space-time trigonometry, the spherical trigonometry formalism may be used to describe and study the kinematics of any collision process. Lorentz transformations may thus lie treated as purely geometrical problems. A different way to define a unified trigonometry is also proposed, which is based on the spinor representation of the Lorentz group. This leads to a different and more general formalism than the former one. (auth)

Master--slave manipulators and remote maintenance at the Oak Ridge National Laboratory

DOE Office of Scientific and Technical Information (OSTI.GOV)

Jenness, R.G.; Wicker, C.D.

1975-01-01

The volume of master-slave manipulator maintenance at Oak Ridge National Laboratory has necessitated the establishment of a repair facility and the organization of a specially trained group of craftsmen. Emphasis on cell containment requires the use of manipulator boots and the development of precise procedures for accomplishing the maintenance of 283 installed units. To provide the most economical type of preventive maintenance, a very satisfactory computer- programmed maintenance system has been established at the Laboratory. (auth)

BORAX V EXPONENTIAL EXPERIMENT

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kirn, F.S.; Hagen, J.I.

1963-04-01

The cadmium ratio was measured in an exponential mockup of Borax V as a function of the void fraction. The extent of voids, simulated by lengths of closed polyethylene tubes, ranged from 0 to 40%. The corresponding cadmium ratios ranged from 6.1 to 4.6. The exponential was also used to determine the radial flux pattern across a Borax-type fuel assembly and the fine flux detail in and around fuel rods. For a normal loading the maximum-to-average power generation across an assembly was 1.24. (auth)

THE FAULT DIVERTER-A PROTECTIVE DEVICE FOR HIGH-POWER ELECTRON TUBES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Smith, B.H.

1957-08-01

Fault diverters, or crowbars, have proven to be very effective protection against transient-induced power arcs within accelerator oscillator tubes. This device short circuits the oscillator-plate power supply in the event of an over-current, thus removing the power flow from the fault within a few microseconds. Ignitrons, thyratrons, and triggered spark gaps are used for this purpose. The power supply is protected from the short circuit either by a current-limiting device or a high-speed contactor which removes the system from the power lines within a few milliseconds. The fault diverters, and associated circuitry, used on several of the accelerators in Berkeleymore » and Livermore are described. (auth) l73O Studies of pi -meson and K-meson interactions were continued with counters, emulsions, and the 10-inch liquid hydrogen bubble chanmber. Six emulsion exposures were made for external groups to a pi -meson beam, three to Kmeson beams, two to a neutral-particle beanm, and three to the internal proton beam. An H-D reaction, catalyzed by mu mesons, was observed in the 10-inch liquid hydrogen bubble chamber. Absorption cross-section measurements for antiprotons were continued, using counters. Nineteen target bombardments were made for the chemistry group. A technique of producing two or more secondary-particle beam pulses per acceleration cycle, using different targets, has been successfully tried and used. (For preceding period see UCRL- 36l4.1 (auth)« less

ANTIBODY FORMATION BY TRANSPLANTED BONE MARROW, SPLEEN, LYMPH NODE AND THYMUS CELLS IN IRRADIATED RECIPIENTS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Stoner, R.D.; Bond, V.P.

1963-01-14

Immunological competence of immunized mouse bone marrow, spleen, lymph node, and thymus cells was demonstrated when specific recall tetanus antitoxin responses were elicited after transfer of these cells to isologous irradiated mice or rats. Lesser amounts of antibody were obtained as the genetic strain distance was increased between the relation of donor and host in the parental to F/sub 1/ and in the homologous combination within the same species. It was not possible in the heterologous situation to elicit significant amounts of antibody from rat bone marrow and other lymphoid cells following their transplantation into irradiated mice. Minimal but notmore » significant antibody responses were elicited from cells obtained from immunized rat spleen and thymus tissue. In a few experiments, it was possible to elicit antibody formation from a buffy coat suspension of circulating white cells following their transfer to irradiated recipients. Isologous nonimmunized bone marrow did not stimulate or hasten recovery of the ability to eiicit secondary antibody responses in previously immunized irradiated mice. The capacity to elicit primary antibody responses to tetanus toxoid was depressed in parental-bone-marrow-protected F/sub 1/ mice when these chimeras exhibited varying degrees of secondary disease. The depression of primary antibody responses in irradiated F/sub 1/ mice given parental bone marrow provides evidence for a donor mediated immunological depression of antibody synthesis by host-lymphoid tissues. (auth)« less

PuReD-MCL: a graph-based PubMed document clustering methodology.

PubMed

Theodosiou, T; Darzentas, N; Angelis, L; Ouzounis, C A

2008-09-01

Biomedical literature is the principal repository of biomedical knowledge, with PubMed being the most complete database collecting, organizing and analyzing such textual knowledge. There are numerous efforts that attempt to exploit this information by using text mining and machine learning techniques. We developed a novel approach, called PuReD-MCL (Pubmed Related Documents-MCL), which is based on the graph clustering algorithm MCL and relevant resources from PubMed. PuReD-MCL avoids using natural language processing (NLP) techniques directly; instead, it takes advantage of existing resources, available from PubMed. PuReD-MCL then clusters documents efficiently using the MCL graph clustering algorithm, which is based on graph flow simulation. This process allows users to analyse the results by highlighting important clues, and finally to visualize the clusters and all relevant information using an interactive graph layout algorithm, for instance BioLayout Express 3D. The methodology was applied to two different datasets, previously used for the validation of the document clustering tool TextQuest. The first dataset involves the organisms Escherichia coli and yeast, whereas the second is related to Drosophila development. PuReD-MCL successfully reproduces the annotated results obtained from TextQuest, while at the same time provides additional insights into the clusters and the corresponding documents. Source code in perl and R are available from http://tartara.csd.auth.gr/~theodos/

AMPX: a modular code system for generating coupled multigroup neutron-gamma libraries from ENDF/B

DOE Office of Scientific and Technical Information (OSTI.GOV)

Greene, N.M.; Lucius, J.L.; Petrie, L.M.

1976-03-01

AMPX is a modular system for producing coupled multigroup neutron-gamma cross section sets. Basic neutron and gamma cross-section data for AMPX are obtained from ENDF/B libraries. Most commonly used operations required to generate and collapse multigroup cross-section sets are provided in the system. AMPX is flexibly dimensioned; neutron group structures, and gamma group structures, and expansion orders to represent anisotropic processes are all arbitrary and limited only by available computer core and budget. The basic processes provided will (1) generate multigroup neutron cross sections; (2) generate multigroup gamma cross sections; (3) generate gamma yields for gamma-producing neutron interactions; (4) combinemore » neutron cross sections, gamma cross sections, and gamma yields into final ''coupled sets''; (5) perform one-dimensional discrete ordinates transport or diffusion theory calculations for neutrons and gammas and, on option, collapse the cross sections to a broad-group structure, using the one-dimensional results as weighting functions; (6) plot cross sections, on option, to facilitate the ''evaluation'' of a particular multigroup set of data; (7) update and maintain multigroup cross section libraries in such a manner as to make it not only easy to combine new data with previously processed data but also to do it in a single pass on the computer; and (8) output multigroup cross sections in convenient formats for other codes. (auth)« less

Measurement of the Infinite Multiplication Constant of Natural Uranium--Graphite Lattices in the RB-1 Critical Assembly by Means of the Zero Reactivity Method. MISURA DELLA COSTANTE DI MOLTIPLICAZIONE INFINITA DI RETICOLI A URANIO NATURALE E GRAFITE NELL'INSIEME CRITICO RB-1 CON IL METODO DELLA REATTIVITA' NULLA (in Italian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ghillardotti, G.

1966-07-01

To reduce uncertainties to the minimum, measurements in the RB-1 were conducted on the same materials and with the same instrumentation as those used previously in MARIUS. The values measured in the RB-1, compared with the already known substitution data, are as follows: (a) the difference between the multiplication and the absorption intensity; (b) the fine structure of the flux in the cell; (c) the Pu/U index. The infinite mutiplication factor K{sub infinity} is obtained by combining measurements (a) and (b). The results of this research can be summed up as follows: 1. A consistent and complete experimental procedure hasmore » been devised for measuring the K{sub infinity} of natural uranium/graphite lattices by means of the zero reactivity method. The same applies to the procedure for analysis of the experimental data. 2. The error in (K{sub infinity} -- 1) inherent in the measurement can in our opinion be reduced to 2%. This limit was reached in the last experiment on lattices consisting of tubular elements. 3. Agreement proved to be good with the results obtained by the CEA in the critical assembly MARIUS. (auth)« less

INTRODUCTION OF MANY-PARTICLE VARIABLES FOR THE TREATMENT OF SPECIAL TRANSLATIONALLY INVARIANT MANY-BODY PROBLEMS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Mobius, P.

1960-05-01

An attempt is raade to treat special translationally invariant many-body problems by coordinate transformations introducing many-particle variables. These are adapted coordinates of such kind that the condition of translational invariance and the Pauli principle can be satisfied automatically. They are homogeneous functions of the particle coordinates obeying certain differential equations. The Schrodinger equation is transformed into these variables. There exist examples of systems of interacting particles which can be separated exactly in the many-particle variables but not in the particle coordinates. (auth)

THE STABILITY OF THE PINCH WITH ANISOTROPIC PRESSURE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Jaggi, R.K.

1961-12-01

A dispersion equation was obtained for the stability of the pinch from the hydromagnetic equations supplemented by an equation for the pressure tensor of the ions. The dispersion equation was obtained for the marginal instability case only. It was observed that this dispersion equation coincides with the dispersion equation obtained from the Chew, Goldberger, and Low equations for the marginal instability case. It was concluded that the region of stability predicted from the equations that were used is slightly more than given by the kinetic equation used by Chandrasekhar, Kaufmann, and Watson. (auth)

Two-Dimensional Simulation of the Automatic Aircraft Intercept Control System

DTIC Science & Technology

1950-01-26

G. Paine 26 January 1950 CfaSSif!,catlor Cf FI 7’-. AUTH I- By .... we, ure nd Grade Appro 4ed by: Mr. E . F. Kulikowski, Head, Systems Utilization...which are herein designated by the letter E with the proper subscripts). The observed coordinates for either bomber or fighter can be expressed by the...equations, "YV= Y + E (6) and X=X+Ex, (7) in which X and Y are the exact position coordinates and Ey, Ex the position errors. Since the’ - errors vary

Physico-Chemical Characteristics of Uraniferous Supergene Minerals; CARACTERISTIQUES PHYSICO-CHIMIQUES DES MINERAUX URANIFERES SUPERGENES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Semat, M.A.

1960-01-01

Transport and deposit conditions of uraniferous minerals are breifly described. The synthesis of crystallograpic, physical, optical, and thermal properties permits defining the main characteristics of this mineralogical group. Tables to facilicate identification of the supergene uranium minerals are given on investigation by anion and cation; system, cleavages, cell parameters, interplanar spacings, refractive indices, optical barings; classification by decreasing values of the most intense line of the powder diagram; diagram for the three higher interplanar spacings; and diagram of the refractive indices. (auth)

User's guide to the Octopus computer network (the SHOC manual)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schneider, C.; Thompson, D.; Whitten, G.

1975-06-02

This guide explains how to enter, run, and debug programs on the Octopus network. It briefly describes the network's operation, and directs the reader to other documents for further information. It stresses those service programs that will be most useful in the long run; ''quick'' methods that have little flexibility are not discussed. The Octopus timesharing network gives the user access to four CDC 7600 computers and a broad array of peripheral equipment, from any of 800 remote terminals. Octopus will soon include the Laboratory's STAR-100 computers. 9 figures, 5 tables. (auth)

FIRST RESULTS ON X-RAY-INDUCED GENETIC DAMAGE IN ARTEMIA SALINA LEACH

DOE Office of Scientific and Technical Information (OSTI.GOV)

Metalli, P.; Ballardin, E.

1962-01-01

Prophase oocytes of diploid and tetraploid pantenogenetic Antemia salina were x irradiated with 1000 r and damage was scored as oocyte or embryo lethal mutations at the first (X/sub 1/) and at the second (X/sub 2/) generations after irradiation. Dominant lethality shown at X/sub 1/ was much greater for the diploid strain than for the tetraploid; lethality observed at X/sub 2/ was increased with respect to X/sub 1/ in the diploid strain, while in the tetraploid it remained unmodified. (auth)

Including resonances in the multiperipheral model

DOE Office of Scientific and Technical Information (OSTI.GOV)

Pinsky, S.S.; Snider, D.R.; Thomas, G.H.

1973-10-01

A simple generalization of the multiperipheral model (MPM) and the Mueller--Regge Model (MRM) is given which has improved phenomenological capabilities by explicitly incorporating resonance phenomena, and still is simple enough to be an important theoretical laboratory. The model is discussed both with and without charge. In addition, the one channel, two channel, three channel and N channel cases are explicitly treated. Particular attention is paid to the constraints of charge conservation and positivity in the MRM. The recently proven equivalence between the MRM and MPM is extended to this model, and is used extensively. (auth)

SEMI-ANALYTIC CALCULATION OF THE TEMPERATURE DISTRIBUTION IN A PERFORATED CIRCLE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kennedy, J.M.; Fowler, J.K.

The flow of heat in a tube-in-shell fuel element is closely related to the two-dimensional heat flow in a circular region perforated by a number of circular holes. Mathematical expressions for the two-dimensional temperature distribution were obtained in terms of sources and sinks of increasing complexity located within the holes and beyond the outer circle. A computer program, TINS, which solves the temperature problem for an array of one or two rings of holes, with or without a center hole, is also described. (auth)

HAEMORRHAGIC SYNDROME IN THE CLINICAL PICTURE OF RADIATION SICKNESS IN DOGS AFFECTED BY POLONIUM (in Russian)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Mikhailovich, S.M.

Subcutaneous introduction of polonium to dogs brings about development of radiation sickness with appearance of haemorrhagic syndrome, which is characterized by disturbed process of blood coagulation, thrombocytopenia, decreased prothrombin value of the blood, increased permeability of capillaries. The clinical picture of the usually developed affection corresponds to the well known symptomatology, described in literature. Indicators of the haemorrhagic syndrome (blood coagulation, prothrombin value, permeabillty and stability of capillaries) appear in animals earlier than the clinical manifestations of this syndrome. (tr-auth)

STEAM CARRYUNDER MEASUREMENT BY MEANS OF TWO-PHASE PUMP PERFORMANCE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Niemi, R.O.; Steamer, A.G.

1960-10-01

Pump tests were conducted at the Moss Landing Steam Separation Facility at operating pressures of 600 and 1000 psig to provide a method for determining the rate of steam carryunder. Pump power input and head were measured as functions of water flow and steam flow to the pump suction. The pump tested had a rated flow of 1700 gpm and a rated head of 148 feet. It was found that in this facility, steam carryander can be measured to 0.1% by measuring the recirculating water pump input power and Pump head. (auth)

LECITHINASE AND LYSOLECITHINASE ACTIVITY OF RAT INTESTINAL MUCOSA AFTER WHOLE-BODY X-IRRADIATION

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ottolenghi, A.; Bernheim, F.

1961-11-01

Twenty-four hours after whole-body x irradiation the lecithinase activity of rat intestinal mucosa has markedly decreased and the lysolecithinase activity has decreasecp to a lesser extent. Addition of normal mucosa or chyi'otrypsin to the irradiated mucosa restores the activity of both enzymes. This indicates that irradiation eithei produces an inhibitor or inactivates a mechanism necessarly to convert pro-enzymes into active enzymes. Since chymo trypsin can increase to some extent the activity of the enzymes in normal mucosa, the second possibility seems more probable. (auth)