... been recorded in the diet1. Terrestrial A small police outpost was established on the island in 1969. ... 40 birds, but given its high levels of recruitment, this is probably not a serious threat, t...
NBII National Biological Information Infrastructure
cr) Decision Making in a Market Economy (2cr) Feeding Dairy Cattle/Ruminant nutrition (2cr) Food & Swine Breeding (1cr.) Dairy Eval/Genetics( 3cr.) Dairy Herd Management (2cr.) Feeding Dairy Cattle) Convocation (1cr) Decision Making in a Market Economy ...
E-print Network
13 Oct 2010 ... En ambientes de muy baja gravedad, en cambio, no se necesita ning?n ... hechas de aleaci?n de titanio, vidrio met?lico, y acero inoxidable. ...
NASA Website
The publication presents the papers delivered in a workshop about trials and selection of the steels and their thermal treatments for stamping industry.
National Technical Information Service (NTIS)
... including a direct microscopic examination and sodium nitrate flotation, completed during quarantine in May 2002 were negative ... negative for acid-fast staining organisms. Four fecal flotation examinati...
Initial Environmental Impact Assessment. 1991. J.M. Acero, J.L. Agraz, C.A. Aguirre and J. Plotz. Instituto Antartico Argentino and Alfred Wegener Institut ...
-- 116. Bhattachary, D. 1998. Enviromental values: a critical ap� praisal of cost�benefit analysis
Environmental impact assessment associated with the salvage operation of the ... Initial Environmental Impact Assessment. 1991. J.M. Acero, J.L. Agraz, C.A. ...
grant (FA9550-04-1-0117), an AFRL grant via Veridian and an NSF grant (IIS-0534707). We thank A. Acero
The purpose of the publication is to explain in an easy way the traditional process of steel manufacturing, and to promote the interest of the foundrymen working without large investment.
Many tropical fruits are rich in anthocyanins, though limited information is available about the characterization and quantification of these anthocyanins. The identification of anthocyanin pigments in four tropical fruits was determined by ion trap mass spectrometry. Fruits studied included acero...
Technology Transfer Automated Retrieval System (TEKTRAN)
... now be studied. The following molecules were studied: HBO2, BOCl, BOF, FeF2, CrF2, CrF3, CrCl2 and LiOH. In most cases ...
DTIC Science & Technology
Structure and Function (2 cr.; fall) 6. BIOL 28000 Biology IV: Genetics and Molecular Biology (2 cr.; spring) 7. BIOL 28100 Laboratory in Genetics and Molecular Biology (2 cr.; spring) 8. BIOL 28600 Biology (3 cr.; fall) BIOL 41600 Molecular Virology (3 cr.; spring) BIOL ...
Structure and Function (2 cr.; fall) 6. BIOL 28000 Biology IV: Genetics and Molecular Biology (2 cr.; spring) 7. BIOL 28100 Laboratory in Genetics and Molecular Biology (2 cr.; spring) 8. BIOL 28600.; fall) 10. BIOL 39500 1 Macromolecules (3 cr.; fall) 11. BIOL 41500 2 ...
can be included in modeling the language (Wang, 2000; Erdogan et al., 2002). In this article, we accuracy may indeed be two very different businesses after all. References Erdogan H. Sarikaya R. Gao Y
13 Oct 2010 ... El acero inoxidable es una aleaci?n (mezcla de hierro, n?quel y cromo), as? como lo es la mayor parte de la orfebrer?a (oro y n?quel). ...
In order to protect carbon steel of towers and piping of a GS experimental heavy water plant against corrosion produced by the action of aqueous solutions of hydrogen sulphide, a method, elsewhere published, was developed. Carbon steel exposed to saturate...
In order to protect carbon steel towers and piping of Girlder sulfide (G.S.) experimental heavy water plants against corrosion produced by the action of aqueous solutions of hydrogen sulfides, a method, previously published, was developed. Carbon steel, e...
The Atlas summarizes the experience of almost two decades of applied research in the siderurgical industry (IAS-CNEA joint agreements), by means of hot torsion test to evaluate the hot workability in steels through ductility properties and the formation s...
Within the framework of the development of low activation structural materials to be used in nuclear fusion reactors four martensitic Fe-9,5 Cr alloys were conceived with different contentsof tungsten-tantalum and/or germanium as substitutions for Mo, Ni,...
Ion nitriding is a glow discharge process that is used to induce surface modification in metals. It has been applied to 316-L austenitic stainless steel looking for similar benefits already obtained in other steels. An austenitic stainless steel was selec...
The relationship between the degree of sensitization and the corrosion resistance of austenitic stainless steel has been reported since long time, however this relationship does not account for all the experimental results reported on the literature. The ...
The main objective of the work was to determine the most common defects occuring in tool steels of the AISI D-2, S-1, 0-1 and W-2 series during thermal treatment. Defects were evaluated by metallographic analyses, a method used to determine and recognize ...
This is a theoretical-experimental laboratory study on the Electroslag Remelting Technology (ESRT) of high quality steels. The objective of this study was to analyze the problems that this technology entails and thus facilitate its industrial application ...
Maraging steel fabrication process metallurgy and cost effectiveness were investigated. Experimental melts were carried out in an induction furnace under argon atmosphere, and alternatively with vacuum remelting or direct induction melting under vacuum. A...
In this work, metallic coatings of nickel was made over carbon steel using two different electrolytic solutions: The Watts's bath and the nickel sulfamate bath, using a pulse variable current. The method use was the traditional method, its means a thermos...
The experimental study focused on the behavior of six different steels, of approximately 0.35% C and various contents of Cr, Ni, and Mo. Each of these steels were tested in order to determine its fatigue limit to 10 million cycles, in 5 different states (...
Sensitization is a cause of corrosion that has been widely studied in austenitic steels; however, the relationship between sensitization and mechanical properties of steel is less known. Therefore, the objective of this work is to study the mechanical pro...
Telemetry Systems, Isanti, MN, USA; Holohil Systems, Carp, ON, Canada). All radios were attached ventrally-knobbed hornbill Aceros cassidix during the non-breeding season. � In: Poonswad, P. (ed.), The Asian hornbills
The intergranular stress cracking of welded joints of austenitic stainless steel, AISI 304, is a serious problem in BWR type reactors. It is associated with the simultaneous presence of three factors; stress, a critical media and sensibilization (DOS). EP...
Corrosion susceptibility under stress of AISI 304 steel sensitized in a sodium thiocyanate solution has been studied and results were compared with those obtained with solutions of thiosulfate and tetrathionate. Sensitized steel type 304 is highly suscept...
The relationship between: microstructure-heat treatment, microstructure-mechanical properties, microstructure-corrosion resistance make that the study of the microstructure of metals and alloys be a powerful tool either in technical-scientific research as...
With this work it is demonstrated the possibility of performing the nitriding process by using a CVD-ECR source, based on the results obtained after treating several samples of AISI H-12 steel. Also, the main operating parameters (time of treatment, sampl...
The peak stress and the steady state values for free cutting, carbon and alloyed steels deformed at high temperatures were obtained in this paper as a result of two regressions. With these data and the peak deformation values obtained in a former work, st...
Phosphate coatings are inorganic crystalline deposits laid down uniformly on properly prepared surfaces by a chemical reaction with the treated base metal. The reaction consists in dissolving some surface metal by acid attack and then causing surface neut...
'anodo de carb'on, reaccionando con 'el y produciendo di'oxido de carbono (ver [8]). En los ' ultimos a aislantes. Contiene un c'atodo formado por un bloque de carb'on atravesado por una barra de acero en cuyo
The reactivity of several pentaaquo- alpha -hydroxyalkylchromium(III) complexes including (H sub 2 O) sub 5 CrCH(C sub 2 H sub 5 )OH exp 2+ , CrC(C sub 3 )(C sub 2 H sub 5 )OH exp 2+ , CrC(C sub 2 H sub 5 ) sub 2 OH exp 2+ , CrC(CH sub 3 )(i-C sub 3 H sub...
The research project aimed at obtaining verifiable knowledge of structural development during welding, precipitation and embrittlement tendencies, changes of the austenite-ferrite ratio, and corrosion behaviour, for the application of such coatings to che...
... Accession Number : ADD113675. Title : THE EFFECT OF TEMPERATURE ON CREEP CRACK GROWTH IN A 1/2% Cr 1/2% Mo 1/4% V STEEL,. ...
(Crosslisted with Ahabs). 2 cr. Topics will include overviews of: RNA, DNA and protein structure; mechanisms
... research, testing and training programs; updated ... TUBES IN SEA WATER DESALTING UNITS ... ON THE CORROSION RESISTANCE OF STEELS IN ...
... rapid corrosion rate of CP magnesium. ... 29). The r inspection indicated that thicker magnesium and t ire Li 2 CrO4 would lengthen ...
Using the magnetic circular dichroism in X-ray absorption at the L2,3-edges of the 3d-transition metals, we determined the element specific ratio between orbital and spin magnetic moment of the Heusler compounds Co2CrAl,Co2Cr0.6Fe0.4Al and Co2FeAl. The orbital magnetic moment per spin is large (0.1-0.2) compared to ...
NASA Astrophysics Data System (ADS)
... included in this investigation is 13s2 Cr-Ni steel. ... to dominance of the work-hardening factor. ... This relationship was derived for isotropic metals upon ...
... Title : Effect of a B2/Gamma Structure on the Tensile Properties of the Cast Gamma Titanium Aluminide Ti-48Al-2Cr-2Nb. ...
... Title : Effect of Deformation and Stress-Induced Precipitations on the Corrosion Resistance of Silicon Alloyed Stainless Steel X 2 CrNiSi 18 15 in ...
The blades in this case were titanium aluminide, Ti-48Al-2Cr-2Nb, and the disk ... Wear volume loss of Ti-48Al-2Cr-2Nb flat in contact with an IN 718 pin in air as ...
Two-phase (gamma)-tail alloys such as PM Ti-47Al-2Cr-2Nb or Ti-47Al- 2Cr-1Nb-Ta hot extruded above the (alpha)-transus temperature have unique refined-colony/ultrafine lamellar structures. These lamellar microstructures consist of very fine laths of the (...
An evaluation of the CASE galvanic cell with electrochemical conversion of thermal energy is presented. The two oxido-reduction reaction occuring in the cell may be represented by the following equilibrium: (1) Sn + 2Cr3+ and (2) Sn2 + 2Cr2+; from 1 to 2 ...
this specialization prerequisite will be required to take IE 6260: Quality Assurance and Control (2 Cr.) #12;Handbook activities Coordinate quality assurance activities with other activities (engineering, financial, management this specialization prerequisite will be required to take IE 6260: Quality Assurance and Control (2 ...
The existence of continuous series of solid solutions tin TiB/sub 2/-- CrB/sub 2/ and the limited intersolubiltity of ZrB/sub 2/-CrB/sub 2/ were confirmed. (R.V.J.)
Energy Citations Database
The new 2% CrMoNiWV steel has a sufficient strength level, a very good creep (rupture) behaviour and an excellent toughness behaviour for a creep resistant steel. Even after long time high temperature exposure the toughness degradation is so small that it...
of calcium hydroxide, and the vaporization of liquid water. Standard Form 298 (Rev. 8-98) ]Prescribed by ANSI of calcium oxide [CaO (cr)] or calcium hydroxide [Ca(OH)2 (cr)]. Three reactions are considered: the hydration of calcium oxide: CaO(cr) + H2O(l) = Ca(OH)2(cr), (1) the dissolution of calcium hydroxide: Ca
Cathodic activation, anodic and immersion passivation treatments on types 310, 321, 410 stainless steel panels, and M1 gas cylinders were investigated in 5% solutions of Na2SO4, Na2Cr2O7. Passivation in 20% HNO3 containing 2% Na2Cr2O7 was conducted as des...
Mice lacking 5-HT 2C receptors displayed hepatic insulin resistance, a phenotype normalized by re-expression of 5-HT2CRs only in pro-opiomelanocortin (POMC) neurons. 5-HT2CR deficiency also abolished the anti-diabetic effects of meta-chlorophenylpiperazine (a 5-HT2CR agonist); these effects were re...
Biology IV: Genetics and Molecular Biology (3 cr.; spring) 7. BIOL 24200 Laboratory in Genetics and Molecular Biology (2 cr.; spring) 8. BIOL 28600 Intro. to Ecology & Evolution (2 cr.; spring) or BIOL 29500 cr.; fall) BIOL 41500 Intro. to Molecular Biology (3 cr.; fall) BIOL 41600 Viruses and Viral Diseases
Laser-evaporated chromium atoms are shown to insert into dioxygen to form CrO 2 in solid argon. Annealing allows diffusion and reactions to form (eta (2)-O 2) 2CrO 2, which is characterized as [(O 2 (-)) 2(CrO 2) (2+)], a side-on bonded disuperoxo-chromium dioxide complex. The (eta (2)-O 2) ...
PubMed
This paper is part of a series which corresponds to the carbon steel behaviour as construction material for Girlder sulfide (G.S.) heavy water plants. The present work analyses the iron concentration study during passivation in the passivating fluid. At t...
In heavy water plants that use the bithermal exchange H(sub 2)S-H(sub 2)O, a protective scale against corrosion is formed by the action of a solution of H(sub 2)S at high temperature for a tile between 10 to 14 days. Exposure to humid air during plant shu...
In order to protect carbon steel towers and piping of a GS experimental heavy water plant against corrosion produced by the action of aqueous solutions of hydrogen sulphide, a method, elsewhere published, was developed. Carbon steel exposed to saturated a...
The passivation on carbon steels, in particular ASTM A 516 Degree 60 and ASTM A 333 steels is made, submitting it to the action of H(sub 2)S/H(sub 2)O(sup 1,2) corrosive medium. The steel is rapidly corroded by H(sub 2)S in aqueous solution, forming iron ...
In order to protect carbon steel towers and piping of Girlder sulfide (G.S.) experimental heavy water plants against corrosion produced by the action of aqueous solutions of hydrogen sulfide, a method, previously published, was developed. Carbon steel, ex...
An ASTM A 516 degree 60 carbon steel superficial protection technique submitted to a hydrogen-water sulfide corrosive medium at 2 MPa of pressure and 40-125 deg C forming on itself an iron sulfide layer was tested. Studies on pH influence, temperature, pa...
This work describes the assays aimed to passivate the steel carbon of the process pipings. This steel is marked by the ASTM A 333 G6 and is chemically similar to those of isotopic exchange towers which corrode in contact with in-water hydrogen sulfide sol...
de la meteorizaci�n de una balsa de residuos pir�ticos Patricia Acero Salazar #12;Estructura del proyecto Evoluci�n flujo y transporte reactivo en zona no saturada de balsas de residuos pir�ticos residuo (Tailings) Presa Capa agua anti-oxidaci�nEvaporaci�n O2 Tongadas sucesivas #12;O2 #12;Objetivos del
would require low B-field (magnetic field damping after ... VHE �-rays. H.E.S.S. prelim. HESS VHE excess map. XMM map (2-4.5 keV) smoothed to HESS PSF preliminary ... B&W map: ATCA 1.4 GHz. Tian et al., ApJ 2008. Color map: H.E.S.S. �-ray excess ... Matching increase in absorption derived from 12CO observations ...
The susceptibility of a 17-4PH type steel to Stress Corrosion Cracking (SCC) in low pressure steam turbine environments was assessed using slow strain rate test at 90 Centigrade and at 1.35x10(sup -6) seg(sup -1). Environments tested included different co...
We report the role of mitochondria in the protective effects of curcumin, a well-known direct and indirect antioxidant, against the renal oxidant damage induced by the hexavalent chromium [Cr(VI)] compound potassium dichromate (K(2)Cr(2)O(7)) in rats. Curcumin was given daily by gavage using three different schemes: (1) complete treatment (100, 200, and ...
The most common and plesiomorphic mechanism of food transport in tetrapods is lingual-based. Neognathous birds use this mechanism for exploiting a large diversity of food resources, whereas paleognathous birds use cranioinertial mechanism with or without tongue involvement. Food transport in three hornbills' species (Aceros cassidix, A. undulatus, and Buceros hydrocorax) is ...
Epitaxial thin films of the highly spin polarized Heusler compound Co2Cr0.6Fe0.4Al are deposited by DC magnetron sputtering. It is shown by XRD and TEM investigations how the use of an Fe buffer layer on MgO(1 0 0) substrates supports the growth of highly ordered Co2Cr0.6Fe0.4Al at low deposition temperatures. The ...
Nanocrystalline bimetallic metal nitride, Ti0.5Cr0.5N was synthesized by ammonolysis at 800°C for 14 hours of the nanozide TiO2/Cr2O3 precursor powder. TiO2/Cr2O3 nanopowder resulting from the coprecipitation method. The precursor and the resulting nitrides were characterized by X-Ray diffraction analysis and ...
NSDL National Science Digital Library
-P 661 PROSTHETIC/ORTHOTIC INTERVENTN (2 CR) 3678 RSTR 08:00 A-11:00 A W LO 306 Loghmani M 40 6 0 SHRS
The selection of construction materials for LMFBR steam generators is reviewed, presenting the advantages and limitations of 2 exp 1 / sub 2 Cr-1 Mo steel selected for the Clinch River Breeder Reactor Plant. These limitations indicate that further develop...
Material parameters govern many of the design decisions in any engineering task. When two materials are in contact and microscopically small, relative motions (either vibratory or creeping) occur, and fretting fatigue can result. Fretting fatigue is a mat...
In a Ni-5.2 Al-14.2 Cr at.% alloy with moderate solute supersaturations and a very small gamma/gamma
NASA Technical Reports Server (NTRS)
... to improve control over the deposition of TaSi2, Cr3Si, Al2O3 cermet resistors ... HfO2 dielectric films were deposited in the second RF system, Mo-Au ...
... Accession Number : ADD109273. Title : THERMAL STABILITY OF ALPHA-BETA TITANIUM ALLOY Ti-5Al-2Cr-1Fe,. Corporate Author : ...
An analysis of the problems involved in the determination of the first and second dissociation constants of H/sub 2/CrO/sub 4/ was made. Spectrophotometric measurements were made and compared to calculated values for 25 and 45 deg C. (C.J.G.)
... II FOREIGN TECHNOLOGY DIVISION SPECTRAL PROPERTIES OF-A WOVEL ASER CRYSTAL Y 3 (In, Ga) 2 Ga 3 O01 2 :Cr by ... Page 9. I y ...
... THE INCIDENCE OF REHEAT CRACKING IN 0.5CR MOV STEELS CURRENTLY USED AT ELEVATED TEMPERATURES IN UK STEAM POWER ...
... of the MA-processed A193Fe3Ti2Cr2 alloy for high-temperature structural applications. ... Ti all have very low diffusivity and equilibrium solubility in fcc ...
Oxidative degradation experiments have been performed on the following model compounds: phenanthrene, methyl phenanthrene. Change and loss of structural information is obtained by Na sub 2 Cr sub 2 O sub 7 and oxidative degradation. (ERA citation 10:00177...
The behaviour of pyrolytic carbon coatings on commercial grade graphite substrate in oxidizing environment is described. Specimens were examined under sputtering in plasma of oxygen and argon, or in an oxidizing solution of K sub 2 CrO sub 7 +H sub 3 PO s...
The influence of the microstructure of 2 Cr - 1 Mo ferritic steel upon the decarburisation behaviour of the steel in sodium is discussed. It is shown that selection of suitable prior heat treatment and of compositional specification with respect to minor ...
... by quantitative determination of NaCl and the ... The sodium chloride by-product forms immediately ... erOs + 2RsSiOH + (asSi)2cr04 + H20 in methylene ...
Method of measuring total carbon: Wet digestion with 2 N K2Cr2O7 ... Method of measuring total nitrogen: Wet digestion (Kjeldahl) and ...
Major Map: Dental Hygiene Catalog Year: 20102011 The following Fall Semester Year: 14 hours #12;Major Map: Dental Hygiene Catalog Year Practice of Dental Hygiene 4 C DEN HY 3080L Preclinical Dental Hygiene 2 CR DEN
Ca II H+K absorption ...... & J77. Ti II emission ............... J28. J2. Cr II emission ............... J31. 2. Fe II emission ............... J21 ...
... in place of 0.2% Cr, similar alloys which also contained 0.3% Ag, and chromium-bearing alloys which contained either higher zinc or higher copper ...
Ginga x ray observations of highly active cool star coronae were obtained and analyzed in an effort to better understand the nature of their time variability. The possible types of variability studied included x ray occultations via eclipses in a binary system, rotational modulation of x ray emission, flares, and a search for microflaring. Observation of both sigma(sup 2) ...
Ginga x ray observations of highly active cool star coronae were obtained and analyzed in an effort to better understand the nature of their time variability. The possible types of variability studied included x ray occultations via eclipses in a binary system, rotational modulation of x ray emission, flares, and a search for microflaring. Observation of both sigma2 ...
... [Cation][Mnl2Ol2(O2CR)l6(H20)4] complexes, where R is some ... of a nuclear spin field, dipolar interactions and intermolecular exchange interactions ...
at 333MHz with either 512 MB or 256 MB of memory (machine names: heron, egret, ..... the user would still press the 's' key to place the aircraft into the ...
... materials and material types: ti-48al-2cr-2nb, cm-247, cm186, cmsx4, in-738, in-792, in-939, in739, ma6000, ma760, rene 80 materials related terms ...
... SOLUTIONS,. Corporate Author : Personal Author(s) : Murakami ,K. ; Sato,E. Report Date : FEB 1978. Pagination or Media Count : 4. ...
example; at 10 �M, there are 43 chromosome aberrations per 100 metaphases on the ground and 92 in flight. Figure 5. Cr uptake resulting from Na2CrO4 ...
Page 1. AD-A243 910 f1 2 Cr,.:x a w. its DEPARENT OF THE AIR FORCE AIR UNIVERSITY AIR FORCE INSTTUTE OF TECHNOLOGY ...
... C) of the alpha-beta transformation temperature of Stellite no. ... Minor phases in Stellite included Co2Cr3, M23C6, M6C, and Cr7C3. ...
.11 CR, denisty 1 CR, denisty 2 CR, denisty 4 CR, denisty 8 Pervasive Systems Software & Security
...in the ore from trivalent to hexavalent chromium. Sodium chromate means Na2 CrO4 . It is produced by roasting chromite...produced by the electrolytic reaction or acidification of sodium...
Code of Federal Regulations, 2010
New results on cold fusion are reported where three different experimental situations have been tried: (a) deuterium gas loaded titanium; (b) deuterium gas loaded Ti(sub 0.8)Zr(sub 0.2)CrMn alloy and (c) titanium and the Ti(sub 0.8)Zr(sub 0.2)CrMn alloy l...
This paper describes an organo metallic complex. It has the formula: (Mo{sub 2}(O{sub 2}CR){sub 2}(H{sub 2}NCH{sub 2}CH{sub 2}NH{sub 2}){sub 4})-((O{sub 2}CR){sub 2})H{sub 2}NCH{sub 2}CH{sub 2}NH{sub 2} wherein R is C{sub 1}{minus}C{sub 5} alkyl.
The change of color of bis(ethylbenzene)chromium(I) iodide monohydrate when the compound loses water of crystallization was investigated. In the dissolution of anhydrous (PhEt)/sub 2/CrI in methyl iodide or THF, and also in the case of a polycrystalline film, a new longwave band appears in the electronic spectrum which disappears on the stabilization of ...
The equilibrium solubilities of LiFeO sub 2 and (Li,K) sub 2 CrO sub 4 in 62% Li sub 2 CO sub 3 -38% K sup 0 CO sub 3 were quantitatively measured at 650 deg C under simulated oxidizing gas environments of molten carbonate fuel cells. Both materials in th...
alpha Fe sub 2 (CrO sub 4 ) sub 3 .3H sub 2 O has been studied by single-crystal x-ray structural analysis. It crystallizes in the centro symmetric, monoclinic space group P2 sub 1 /c, with alpha = 15.802 (7), b = 5.436 (4), c = 14.603 (7) A, beta 108.13(...
Properties of pseudo-binary systems of ZrB/sub 2/ - Mo, TiB/sub 2/ - Mo, CrB/sub 2/ - Mo, TiB/sub 2/ - Cr, and ZrB/sub 2/- Cr were studied by visual thermoanalysis, by plotting shrinkage curves, measuring the micro- and macro- hardness, determining the melting point, and by metallographic and x-ray ...
Static acute toxicity bioassays were conducted at 20 C and 20 o/oo salinity with CdCl2-2 and one half H2O, K2CrO4, HgCl2, NiCl2-6H2O, and ZnCl2 using adults of starfish, Asterias forbesi; sandworm, Nereis virens; hermit crab, Pagurus longicarpus; softshel...
Static acute toxicity bioassays were conducted at 20 C and 20 o/oo salinity with CdCl2-2 and one half H2O, K2CrO4, HgCl2, NiCl2-6H2O, and ZnCl2 using adults of starfish, Asterias forbesi; sandworm, Nereis virens; hermit crab, Pagurus longicarpus; softshell clam, Mya arenaria; mud...
EPA Science Inventory
Two baths were developed for the chemical polishing of UO/sub 2/: H/sub 2/CrO/sub 4/-- HF-- H/sub 2/O and CH/sub 3/CH/sub 2/COOH-- H/su b 2/CrO/sub 4/-- HNO/sub 3/-HF. They are used for samples prepared only by grinding with silicon carbide paper. Results are shown in figures, (M.C.G.)
As complement to the experiences on carbon steel passivation for its use in G.S. (Girlder sulfide) heavy water production plants, the results herein obtained are given, processing the material with a saturated solution at 2.3 MPa of full pressure and 125 ...
The crystal structures of Nd{sub 2}(CrO{sub 4}){sub 3}{center dot}7H{sub 2}O and Eu{sub 2}(CrO{sub 4}){sub 3}{center dot}7H{sub 2}O were determined by the conventional single-crystal X-ray diffraction technique. In addition, unit cell dimensions were measured for La{sub 2} ...
A K? satellite peak in X-ray fluorescence (XRF) spectra is observed as a counterpart of the pre-edge peak of the X-ray absorption near edge structure (XANES). In K? emission of chromium, a small satellite peak is observed at 5.983-5.988 keV only for hexavalent chromium compounds such as CrO(3), Na(2)CrO(7)�2H(2)O, ...
Potassium dichromate (K(2) Cr(2) O(7) ) is an environmental contaminant widely recognized as a carcinogen, mutagen, and teratogen toward humans and animals. This study investigated the effects of K(2) Cr(2) O(7) on the hepatic function of pregnant and lactating rats and their suckling pups. Experiments were carried ...
Purpose.The role of Als2cr4 (amyotrophic lateral sclerosis 2 [juvenile] chromosome region, candidate 4; also known as hypothetical protein FLJ33282) in the mouse retina was determined by characterizing the molecular structure, cellular interacting partners, and potential biochemical functions. Previous in situ hybridization and gene expression profiles show that the mRNAs encoding ...
PubMed Central
The compounds M(2)(O(2)CMe)(4) and the lithium amidinates Li[(N(i)Pr)(2)CR] react to give the new compounds trans-M(2)(O(2)CMe)(2)[(N(i)Pr)(2)CR](2) where M = Mo or W and R = Me (M = Mo only), -C[triple bond]C(t)Bu, -C[triple bond]CPh and -C[triple bond]C-Fc where Fc = 1-ferrocenyl. The limitations of this type of ...
The temperature dependence of heat capacity of crystalline bis(?6-ethylbenzene)chromium fulleride [(?6-EtPh)2Cr]�+ [C60]�- was studied in adiabatic vacuum calorimeter in the range of 6.7 to 344 K with an error of �0.3%. Dependence of the parameters of EPR signal of bis(?6-ethylbenzene)chromium fulleride on temperature was studied by electron ...
We synthesize the polycrystalline Heusler compounds Co{sub 2}Cr{sub 1-x}Fe{sub x}Al (x=0.2-0.6). The x-ray diffraction patterns show A2 structure rather than L2{sub 1} structure. The magnetic moment and the Curie temperature increase with increasing x. The electrical resistivity characterizes the Co{sub 2}Cr{sub ...
A new ionic complex of C60 with decamethylchromocene, Cp*2Cr.C60(C6H4Cl2)2 (1), has been obtained. The fullerides are monomeric in 1 at room temperature, whereas they form a single-bonded (C60-)2 dimer at low temperatures, the structure of which has been studied by the X-ray diffraction on a single crystal at 100 K. The length of the intercage C-C bond is ...
The structures of Fe(2+)-, Cr(3+)-, and Ti(4+)-modified montmorillonite prepared from ion exchange of the Na-clay with Fe(2+), Cr(3+), and Ti(4+) were investigated. Conventional BET surface area and spectroscopic analysis by extended adsorption fine structure (EXAFS) were applied. It was shown that the BET surface ...
This paper reports the effect of iron doping on the structural, electrical, and thermophysical properties of the most conductive rare-earth chromite, La/sub 0.8/Ca/sub 0.2/CrO/sub 3/. According to DTA, TG, and DTG studies, mixed phases of La/sub 0.8/Ca/sub 0.2/Cr/sub 1-x/Fe/sub x/O/sub 3/ (x = 0-1.0) with a ...
The performance of Li-alloy/CsBr-LiBr-KBr/Ag{sub 2}CrO{sub 4} systems was studied over a temperature range of 250 C to 300 C, for possible use as a power source for geothermal borehole applications. Single cells were discharged at current densities of 15.8 and 32.6 mA/cm{sup 2} using Li-Si and Li-Al anodes. When tested in 5-cell batteries, the ...
We present the results of electronic structure calculations for the two-dimensional ferromagnet Rb2CrCl4. They are obtained by the augmented spherical wave (ASW) method as based on density functional theory and the local density approximation. In agreement with experimental data, Rb2CrCl4 is found to be ...
Magnetic properties of molecular magnets, Na3y-2Cr2+[Cr3+(CN)6]yzH2O, were systematically investigated as a function of the coordination number (n \\equiv 6y) around Cr2+. Consistently with a mean-field picture, the ferrimagnetic transition temperature (Tc) increases with n from Tc = 240 K at n = 4.0 to Tc = 263 K ...
Thin films of ordered double-perovskite Sr{sub 2}CrReO{sub 6} have been grown epitaxially onto SrTiO{sub 3} substrates by sputtering, and their microstructural, electrical, and magnetic properties are investigated. It is found that a wide growth-temperature range of at least 700-800 deg. C can yield epitaxial films with superior magnetic properties and ...
We have investigated the novel single-molecule magnet (NEt(4))[Mn(2)(5-Brsalen)(2)(MeOH)(2)Cr(CN)(6)] (1; 5-Brsalen = N,N'-ethylenebis(5-bromosalicylidene)iminato anion) using spectroscopic as well as magnetization and susceptibility measurements. Frequency-domain Fourier-transform terahertz electron paramagnetic resonance (FDFT THz-EPR) based on the ...
The Heusler alloy Co{sub 2}Cr{sub 1-x}Fe{sub x}Al, predicted to be half-metallic for low x, has recently shown relatively large giant and tunnel magnetoresistances in thin film structures. However, the saturation magnetic moment and spin polarization for low x films has been found to fall significantly short of the theoretical half-metallic values. Using ...
Freshly defecated unsporulated oocysts of Eimeria piriformis from rabbit were treated with various concentrations (1%, 2.5%, 5%, and 10%) of chromium compounds, potassium dichromate, potassium chromate, chromium oxide and chromium nitrate, to examine their effect on sporulation. The sporulation time of oocysts treated with 1 to 10% K(2)Cr(2)O(7) was 28 h. ...
A photovoltaic effect of solid solutions composed of (1-chi)PbO, chiCaO and 0.25Cr/sub 2/O/sub 3/ (0{le}chi{le}0.5) is described as functions of time, wavelength, chopping frequency and light intensity, for the purpose of improving photovoltaic characteristics in a pure Pb/sub 2/CrO/sub 5/ photovoltaic device. The effect of substituting Ca into Pb on the ...
The effect of potassium dichromate (K(2)Cr(2)O(7)), a hexavalent chromium compound, on human erythrocytes was studied under in vitro conditions. Incubation of erythrocytes with different concentrations of K(2)Cr(2)O(7) resulted in marked hemolysis in a concentration-dependent manner. K(2)Cr(2)O(7) treatment also ...
The corrosion behavior of Ti-48Al-2Cr-2Nb (at.%) in Ringer's solution was studied to evaluate its potential as a biocompatible material. Corrosion properties of Ti-6Al-4V were determined under the same conditions for comparison. Two electrochemical techniques, potentiodynamic anodic polarization and electrochemical impedance spectroscopy, were employed to test ...
This NASA grant supported my ASCA observing and data analysis during AO 5. This research involved a multiwavelength observation of the short period (1.14 day) active binary sigma(sup 2) CrB using the ASCA and RXTE satellites and the NRAO VLA radio array. ASCA observed sigma(sup 2) CrB for 81 ksec on 1997 March ...
One hundred and seventy MeV Au13+ irradiation induced modification in photoelectrochemical (PEC) and structural properties of nanostructured 2%Cr Fe2O3 and CuO thin films has been investigated. The X-ray diffractogram of both oxides indicated diffused nature of peaks with the appearance of crystalline peaks, indicative of partial amorphization taking place ...
Environmental and occupational exposure to chromium compounds, especially hexavalent chromium [Cr(VI)], is widely recognized as a potential nephrotoxic in humans and animals. Its toxicity is associated with overproduction of free radicals, which induces oxidative damage. Recent evidence indicates that Pycnogenol (PYC), French maritime pine bark extract, exhibits antioxidant potential and protects ...
Different kinds of graphite tubes and of matrix modifiers have been tested for optimization of operation condition for determination of Al in serum by GFAAS. The effects of different interference ions have been eliminated by adding K2Cr2O7 and Triton X-100 as matrix modifier. The method is suitable for determination of serum of cancer patients. The ...
The procedures, including preheat and post-weld heat treatments, which were developed for welding Cr-MoV base metal with a 1/2% Cr-1% Mo electrode using both the manual metal-arc and submerged-arc processes are summarized. The rupture strength of the 1/2% Cr-1% Mo weld metal, as well as that of other low- ...
Ascitic fluid was pooled from 3 mice with Ehrlich ascitic tumors and divided into 3 portions. One portion was incubated with Na/sub 2/Cr/sup 51/O/sub 4/, the second portion was incubated with saline, and the third portion was stored. All samples were adjusted to the same cell concentration and inoculated into test mice. All mice showed ...
TiO{sub 2}:Cr brown pigments were prepared via a polymeric precursor derived from the Pechini method. The pigments were analyzed by infrared spectroscopy, X-ray diffraction, ultraviolet-vis spectroscopy, and colorimetry. The increase of the calcination temperature from 700 to 1000 deg. C led to a decrease in the L* values, corresponding to darkening of the ...
You are working in a forensic lab and are given a blood sample from a suspected drunk driver and asked to determine the person's blood alcohol level. The legal limit is 0.08% by mass in most states. You use the following reaction in your determination, assuming only the ethanol (C 2 H 5 OH) in the blood sample will react with the dichromate. 16H + (aq) + ...
Using first-principles density functional calculations, we have computed the optical and magneto-optical properties of the Cr-based double perovskite compounds, Sr2CrB'O6 with B'=W,Re,Os. Our computed magneto-optic spectra show substantially large Kerr rotations of about -2� to -2.5� for Sr2CrWO6 and Sr2CrReO6 and a moderately large Faraday rotation of ...
Certain Heusler phases belong to the materials which are discussed as potential half metals. Here, results of tunneling experiments with the full-Heusler alloy Co2Cr0.6Fe0.4Al are presented. The Heusler alloy is used as an electrode of magnetic tunneling junctions. The junctions are deposited by magnetron DC sputtering using shadow mask techniques with ...
Based on the first-principles electronic structure calculations, we predict that a chromium oxide K2Cr8O16 of hollandite type should be a half-metallic ferromagnet where the Fermi level crosses only the majority-spin band, whereas the minority-spin band has a semiconducting gap. We show that the double-exchange mechanism is responsible for the observed ...
The effect of toxic metals on seed germination was studied in 23 cultivars of flax (Linum usitatissimum L.). Toxicity of cadmium, cobalt, copper, zinc, nickel, lead, chromium, and arsenic at five different concentrations (0.01-1 mM) was tested by standard ecotoxicity test. Root length was measured after 72 h of incubation. Elongation inhibition, EC50 value, slope, and NOEC values were calculated. ...
Heusler half-metals are promising for spintronic applications. Epitaxial thin films of the exemplar compound Co2Cr0.6Fe0.4Al (CCFA) were investigated using conversion electron M�ssbauer spectroscopy to clarify the factors influencing the spin polarization. CCFA films were deposited by rf magnetron sputtering on MgO substrates with and without an Fe ...
Usually metallicity accompanies ferromagnetism. K2Cr8O16 is one of the less common examples of magnetic materials, exhibiting ferromagnetism in the insulating state. Analyzing the electronic and magnetic properties within first principles electronic structure calculations, we find that the doped electrons due to K induce a charge-ordered and insulating ...
UC--C--Fe mixtures were fired for study of the UC/sub 2/--Fe system, and metallographic evidence were obtained for a ternary compound with the probable composition of UC/sub 2/Fe. The eutectic between UC/sub 2/Fe and Fe was observed to lie between 60 and 62 wt% Fe. Metallographic examination of fired UC/sub 2/-- Cr mixtures indicate that UC/sub ...
The first-principles electronic structure calculation is carried out to predict that a chromium oxide K2Cr8O16 with the hollandite-type crystal structure should be a new half-metallic ferromagnet. We compare our results with recent experimental data which indicate the ferromagnetic-metal to ferromagnetic-insulator transition at T ~ 90 K, as well as the ...
WCourse 3cr MATH181 4cr MATH224 4cr CHEM132 4cr CHBE215 3cr CHBE226 3cr PHYS211 4cr PHYS212 4cr CHEM215 5cr CHBE120 2cr CHBE213 3cr MB301 5cr BCHM340 5cr CHBE461 2cr COREElective 3cr COREElective 3crWCourse 3cr MATH181 4cr MATH224 4cr CHEM132 4cr CHBE215 3cr CHBE216 3cr PHYS211 4cr PHYS212 4cr CHEM215 5cr
The alkaloids present in the root of "Punica granatum" have been extracted by two different methods: extraction by Soxlet and extraction by steam distillation. Then the extracts have been compared by TLC chromatography using different solvents and specific chromogen reagents. The presence of pseudo-pelletierine has been confirmed in both the extractive solution by reaction with conc. ...
X-ray fluorescence analysis using Cr K(alpha) spectra was applied to the determination of the mixing ratio of Cr(6+) to (Cr(6+) + Cr(3+)) in several mixtures of K(2)CrO(4) and Cr(2)O(3). Because the powder of K(2)CrO(4) contained large particles that were more than 50 microm in diameter, it was ground between a pestle and a mortar for about 8 h. The coarse particles still remaining were removed by ...
(MoS2/Ti) deposited on Ti-6Al-4V, Ti-48Al-2Cr-2Nb, and nickel-based ... DLC/Cr, GLC/Cr, and MoS2/Ti coatings on Ti-6Al-4V were effective from 296 to 523 K, ...
on reverse side Last update: November 9, 2007 #12;CELL AND MOLECULAR BIOLOGY, B.S. Cell and molecular biology AND MOLECULAR BIOLOGY, B.S. DEPARTMENT OF BIOLOGY PLAN A FIRST YEAR FALL SEMESTER SPRING SEMESTER CHEM 1151 Education Course or Minor Field Course 6 cr BIOL 2101 Cell Biology 3 cr BIOL 2102 Cell Biology lab 2 cr CHEM
In this study the transport of chromium(VI) from aqueous solutions of pH 2--4 through a supported liquid membrane (SLM) with tri-n-octylphosphine oxide (TOPO) dissolved in kerosene as a mobile carrier was investigated. The transport flux of Cr(VI) increased with an increase in the concentrations of Cr(VI) in the feed phase and of TOPO in the membrane phase, but with a decrease in pH of the feed ...
Areas of investigation were: Maximum useable resistance of TaSi2, Cr3Si, Al2O3 films increased to 10,000 ohms per square with TCR = -300 ppm/C. Started evaluation of flash evaporated Ta2O5 + metal powder for R sub s > or = 15,000 ohm-per-square cermet res...
Hydrogen is produced by a closed cyclic process involving the reduction and oxidation of chromium compounds by barium hydroxide and the hydrolytic disproportionation of Ba/sub 2/CrO/sub 4/ and Ba/sub 3/(CrO/sub 4/)/sub 2/.
Hydrogen is produced by a closed cyclic process involving the reduction and oxidation of chromium compounds by barium hydroxide and the hydrolytic disproportionation of Ba.sub.2 CrO.sub.4 and Ba.sub.3 (CrO.sub.4).sub.2.
Ruby (A12O3:Cr) :11: Emerald (Be3Al2Si6O18:Cr) [12]. Spinel:Cr (MgAl2O4:Cr) [ 13]. YAG:Cr (Y2Al5O12 :Cr) :14: YGG:Cr (Y,oa,o,, :Cr) :14: Rutile:Cr (TiO2:Cr) ...
)) Centro LARRE Carex bicolor All. VU D2 CR B1ab(ii,iv)+B2ab(ii,iv) Consultores S.C. Saxifraga cotyledon Lab(i,ii,iii,iv)+ 2ab(i,ii,iii,iv); D2 Ascaso & Pedrol Universidad de Coincya rupestris subsp
Fundamental research is proposed to investigate the role of calcium carbonate grain coatings on the vadose zone chemical reactivity of key Hanford contaminants (i.e., 60Co2+, 90Sr2+, CrO42-, and 99TcO4-). Calcium carbonate is widely distributed through the Hanford vadose zone as...
Reactions of molybdenum(II) carboxylate dimers, Mo sub 2 (O sub 2 CR) sub 4 , with a variety of oxidizing agents were carried out. Crystalline products could be isolated upon reacting the carboxylates with iodine at room temperature. These new compounds w...
Here the authors describe the interactions of Cr and Mo atoms with hydrogen molecules in Kr and Ar matrices at 12K. Upon photolysis with UV light both Cr and Mo are found to be photoreactive with H{sub 2}, forming CrH{sub 2}, CrH{sub 3}, and MoH{sub n} (n=1-4). The authors report bond angles and stretching mode constants for the dihydride molecules.
LBL RPCMAG040528T1230_RAW_OB_M3.TAB The filenames for Housekeeping data are coded ... LBL RPCMAG040528T1230_HK.TAB Geometry Information - Coordinate System ...
Nanostructured Al93Fe3Ti2Cr2 alloys were prepared via mechanical alloying (MA) starting from elemental powders, followed by extrusion to form bulk material. The microstructure and phase formation as a function of the milling time and the concentration of ...
A systematic examination has been made of the diffraction characteristics of .5Cr.5Mo.25V steel in different metallurgical and physical conditions. The work was carried out to explain the problem of obtaining reliable residual stress data from normalized ...
We have set up successfully two experimental systems during the past time of the project. The first system is sol-gel chemical method for preparing (gamma)-Al(sub 2)O(sub 3), SiO(sub 2), Cr(sub 2)O(sub 3) granular support particles. The second system is t...
The presence of positive astatine ion in acid solutions of H/sub 2/Cr/ sub 2/O/sub 7/ with 0.4M < HNO/sub 3/ < 1.25M was indicated by electromigration and ion exchange method. The positive cation charge is 1+. (R.V.J.)
The bulk of the organic matter in coals consists of a macromolecular material of complex and variable composition. To date a number of oxidizing agents have been used. Among these were HNO sub 3 , HNO sub 3 -K sub 2 Cr sub 2 O sub 7 , KMnO sub 4 , O sub 2...
Electronic transitions have been examined in several classes of organoboranes which serve as models for carbonium ions. These are as follows: borane (carbonium ion), R3B (R3C+), Ar(n)B(OR) (3-n) (ArnC+(OR) (3-n)) and (ArCH2)-3B (ArCH2+CR2(+)) where R is a...
will increase the students understanding of wildlife ecology, including habitat assessment and management; thus) Wildlife Ecology (3 cr) Wildlife Ecology II (4 cr) Conservation Biology (3 cr) Free electives WLF 315 WLF 445 WLF 448 WLF 492 WLF 495 Wildlife Ecology Lab (1 cr) Nongame Management (2 cr) Fish and Wildlife
The Bureau of Mines has devised a procedure to recover chromium chemicals from concentrates derived from low-grade domestic chromites. These domestic chromites contain silicon and aluminum impurities at levels that are too high to permit processing by pre...
A low-cost shielding system was developed for the Demonstration Tokamak Power Plant. The shielding system was designed with low-cost materials to fulfill several functions and satisfy the design criteria. The reference shielding materials are water, ordinary concrete, Fel4Mn2Ni2Cr steel alloy, boron carbide, and lead. The cost of this shielding system is ...
(5cr) � Calculus I BIOEN 335 (3cr) � Biotransport II Math 125 (5cr) � Calculus II BIOEN 336 (3cr) � Bioengineering Systems and Control Math 126 (5cr) � Calculus III BIOEN 337 (2cr) � Mass Transport and Systems Sciences (44 Credits) Chem 142 (5cr) � General Chemistry with lab BioE Senior Electives (15 Credits
electronically from the Schurz Library electronic reserves. http://ereserves.indiana.edu:83 Password ecology YourL474 - Marr 1 Laboratory in Ecology (L474) Fall 2007 Instructor: Deborah Marr, Ph.D. Northside 132D, and by appointment Course Description Laboratory in Ecology (2 cr). Field and laboratory study of populations
in the DPA and DPQ ligands. Goal 2. Cr-DNA covalent bond formation studies Currently, one of the three most to this molecule's remarkable therapeutic success is the formation of a direct covalent (i.e. permanent) bond-diimine bonds present, several of which would have to be broken to permit subsequent Cr-guanine covalent bond
Language II University Group Requirement Winter AST4300 Planetary Astronomy and Space Science Science laboratory (2 Cr) � AST4300 Planetary Astronomy and Space Science (3 Cr) � AST5010 Astrophysics and Stellar � Planetary astronomy � Space science � Galaxies, the Universe The New Program This program combines classes
Syllabus and course description: "231 Introductory Engineering Graphics. I, II, SS; 2 cr. A freshman level course which provides the undergraduate engineering student with a background in descriptive geometry, orthographic projection, engineering drawing techniques, and computer-aided engineering graphics. Point line and plane relationships in projection; ...
Using zirconium dioxide mixed with 20% or more of chromium powder, it was possible to prepare cermets which exhibit a high mechanical strength and a considerable heat resistance. Because the metal component of the cermet bears the strain involved in all the volume changes originating by reason of the high- temperature polymorphic transformations of the monoclinic zirconium dioxide, a ...
Metal flow and microstructure evolution during the thermomechanical processing of thin-gage foil of a near-gamma titanium-aluminide alloy, Ti- 45.5Al-2Cr-2Nb, with an equiaxed-gamma microstructure was investigated experimentally and theoretically. Foils o...
A geometry optimization method based on Yamaguchi's approximate spin projection procedure is presented. This method, which can eliminate an effect of a spin contamination from a broken symmetry solution, is applied to several biradical systems such as CH2, Cr2(O2CCH3)4(H2O)2 and an active site of oxygenated hemocyanin. The results show that the spin ...
Gibbs free energies of formation for CrF2, CrF3, CrF2.40, and CrF2.45 were determined with the aid of high-temperature galvanic cells, employing calcium fluoride doped with 1 mole-pct yttrium fluoride, as the solid electrolyte. Equations representing the ...
A high-energy-density cell or battery capable of undergoing flexular stress with little effect on its discharge properties either during and after subjection to stress is disclosed. 7 figures, 3 tables.
The potential reproductive toxicity of potassium dichromate (hexavalent) (K2Cr2O7) in BALB/C mice was evaluated using the Reproductive Assessment by Continuous Breeding (RACB) protocol. Based on slightly decreased body weights and increased feed consumpti...
to allow delicate manipulations of specimens, instruments, and tools. Must be able to grasp and release Mycology Nuclear medicine Out patient or clinic laboratory Parasitology Pathology--Surgical, autopsy, Mycology, and Parasitology for Clinical Laboratory Scientists (2 cr) CLSP 4102--Principles of Diagnostic
An investigation was conducted to examine the fretting behavior of lambda-TiAl (Ti-48Al-2Cr-2Nb) in contact with a nickel-base superalloy (Inconel 718) in air at temperatures from 23 to 550 C. Fretting wear experiments were conducted with 9.4-mm-diameter ...
The fretting behavior of Ti-48Al-2Cr-2Nb (y-TiAl) in contact with the nickel-base superalloy 718 was examined in air at temperatures from 296 to 823 K (23 to 550 C). The interfacial adhesive bonds between Ti-48Al-2Cr-2Nb and superalloy 718 were generally ...
Results are reported from simultaneous measurements of the emissivity and specific electrical resistivity of W, Re, steel-15, Ta, the alloy Ti-4Al-2.lV- l.2Cr-7.65Mo, and the alloy Zr- lNb above l000 deg K. (LMT)
Chromium, a major environmental pollutant, is known for its wide toxic manifestations. The present experiment pertains to the protective role of selenium (Se) against K(2)Cr(2)O(7)-induced hepatotoxicity. Female Wistar rats were divided into four groups of six each: group I served as controls which received standard diet; group II received in drinking ...
Hexavalent chromium, an environmental contaminant, undergoes redox cycling with generation of free radicals inside the biological system. Curcumin, the yellow bioactive component of turmeric has established its antioxidant activities. The present study evaluates possible ameliorating effects of curcumin on potassium dichromate (K(2)Cr(2)O(7)) (hexavalent ...
Thermal cells comprised of Li-B anodes, LiCl-KCl eutectic electrolyte, and one of three depolarizers, CaCrO sub 4 , Li sub 2 CrO sub 4 , or FeS sub 2 , were investigated. These cells require a separator layer to obviate direct redox reactions between the ...
The inhibition of hepatic mixed function oxidase enzymes by hexavalent chromium (Cr VI) compounds was studied. In vitro addition of K{sub 2}Cr{sub 2}O{sub 7} (12.5-50 mM) to microsomes from untreated male Sprague-Dawley rats (80-100 g) caused decreases in cytochrome P-450 (P450) to 63%-38% of control values. Cytochrome c reductase activity was reduced to ...
The pyrolysis gas chromatography-mass spectrometry technique has been extended to 23 kinds of insoluble organic matter from CI, CM2, CR2, CO, CV, OC, and Tagish Lake chondrites. A variety of pyrolysis product molecules are discussed as indicators of the p
phosphate (PO4 3� 5+ and HPO4 2�) S 16 Sulfur as sulfate (SO4 2�) 6+ Cr 24 Chromium, e.g. as chromate (CrO4 ion + + Cu 29 Cuprous copper Ti 22 2+ Mg 12 Magnesium ion 2+ Cr 24 chromium 2+ Chromous H 1 Hydrogen-bearing inorganic solids Typical colors of carbonates, nitrates, phosphates, silicates, arsenates, tungstates
Certain carboxymethylhydroxyethyl cellulose (CMHEC) solutions in waters of various salinities are gelled by dichromate ion at a pH of about 5 or less, thus forming a drilling fluid or component thereof. In an embodiment a CMHEC water solution is gelled using an alkali metal dichromate, e.g., Na2Cr2O7.2H2O.
The authors have previously shown that incubation of rat tracheal slices in tissue culture medium containing 0.4-2.6mm (mmol/liter) Na2CrO4 causes inhibition of secretion of mucus glycoproteins by such explants. At concentrations of Na2CrO4 of 0.27mm and above, the inhibition of ...
CELL, MOLECULAR AND DEVELOPMENTAL BIOLOGY Graduation Requirements: A minimum 2.0 average in all in Biology III: Cell Structure and Function (2 cr.; fall) 6. BIOL 28000 Biology IV: Genetics and Molecular courses: A. BIOL 41500 Intro. to Molecular Biology (3 cr.; fall) B. BIOL 42000 Eukaryotic Cell Biology (3
Liquefaction of coal involves thermolysis of benzyl-oxygen and/or benzyl-benzyl bonds as the first step in the depolymerization. This view derives from NMR studies, studies with model compounds, and oxidative degradations with Na sub 2 Cr sub 2 O sub 7 an...
CSI. CLZ. CM2. CR2. rY2. rS2. DEG. DEG. -4.40 .00. -. 2549 .0330. -. 0425. -. 0002 ... .0013. -. 0056. -. 0073 .005 .0008 .0010. 2.29 .01 .1369 .0229 .0245 . 0002 ...
; wise use of natural resources; animal and plant production; role of machines, labor, and chemi- cals1 2007-09 Cal Poly Catalog College of Agriculture AG�AGRICULTURE AG 100 Orientation to the College. AG 200 Special Problems for Undergraduates (1-2) (CR/NC) Individual investigation, research, studies
'24 2f 10!G1!Uay{aad Operatiorrsinteg-ration Function (r=ou=) M M as/1s\\i2cr0s + 34 as r Vpp-ss?urR?pa:rATa?;1?m@gresasm") oazoauzcrcrs VW ms ...
