EBSD-Based Crystallographic Study on a Ni-Mn-Ga Alloy with Incommensurate 7M Structure

2011 ◽  
Vol 702-703 ◽  
pp. 530-535
Author(s):  
Zong Bin Li ◽  
Yu Dong Zhang ◽  
Claude Esling ◽  
Xiang Zhao ◽  
Liang Zuo
Keyword(s):  
Martensite Transformation ◽  
Type I ◽  
Type Ii ◽  
Orientation Relationships ◽  
Twin Interface ◽  
Crystallographic Study ◽  
Austenite Grains ◽  
Parent Austenite ◽  
Martensitic Variants

Our recent work on EBSD-based characterization of incommensurate 7M modulated martensite in a polycrystalline Ni50Mn30Ga20alloy were summarized. The 7M martensitic plates were revealed to be self-accommodated in colonies, where each colony consisted of four types of variants that were twin related. All the pairs of variants can be categorized into three twinning modes, i.e. type-I, type-II and compound twins. The twin interface planes were in coincidence with the respective twinning planes. Using the measured orientations of adjacent martensitic variants, the orientations of parent austenite grains were calculated under the assumed orientation relationships for the austenite to martensite transformation. The energetically favorable orientation relationship between austenite and martenstie for the martensitic transformation was identified to be the Pitsch relation.

Evaluation of an enzyme immunoassay kit for estrogen receptor measurement--report II.

1988 ◽  
Vol 34 (10) ◽  
pp. 2053-2057 ◽  
Author(s):  
S Raam ◽  
D M Vrabel
Keyword(s):  
Enzyme Immunoassay ◽  
Binding Sites ◽  
Solid Phase ◽  
Functional Characterization ◽  
Quantitative Agreement ◽  
Type I ◽  
Type Ii ◽  
Immunoreactive Protein ◽  
Estrogen Binding

Abstract We present evidence to show that monoclonal antibodies to estrogen receptors (ER) in solid phase recognize the secondary estrogen binding sites with moderate to low affinity for estradiol (E2). An excellent quantitative agreement was found in five cytosols between the ER values obtained by the enzyme immunoassay (ER-EIA) and the amount of secondary estrogen binding sites measured by the assay involving dextran-coated charcoal (Clin Chem 1986;32:1496). The immunoreactive protein recognized by the antibody-coated beads, when allowed to react with ER(+) cytosols, is shown to bind [3H]estradiol only when the ligand concentration exceeds 8 nmol/L. Further biochemical and functional characterization of the immunoreactive protein is required to establish similarities/dissimilarities between this protein, high-affinity Type I ER sites, and the secondary sites such as Type II sites.

Geochemical characterization of hydrocarbon source rocks of the Triassic-Jurassic time interval in the Mandawa basin, southern Tanzania: Implications for petroleum generation potential

2020 ◽  
Vol 123 (4) ◽  
pp. 587-596
Author(s):  
A. Emanuel ◽  
C.H. Kasanzu ◽  
M. Kagya
Keyword(s):  
Source Rocks ◽  
Geochemical Data ◽  
Time Interval ◽  
Type I ◽  
Hydrocarbon Generation ◽  
Type Ii ◽  
Geochemical Characterization ◽  
Type Iii ◽  
Petroleum Generation

Abstract Triassic to mid-Jurassic core samples of the Mandawa basin, southern Tanzania (western coast of the Indian Ocean), were geochemically analyzed in order to constrain source rock potentials and petroleum generation prospects of different stratigraphic formations within the coastal basin complex. The samples were collected from the Mihambia, Mbuo and Nondwa Formations in the basin. Geochemical characterization of source rocks intersected in exploration wells drilled between 503 to 4042 m below surface yielded highly variable organic matter contents (TOC) rated between fair and very good potential source rocks (0.5 to 8.7 wt%; mean ca. 2.3 wt%). Based on bulk geochemical data obtained in this study, the Mandawa source rocks are mainly Type I, Type II, Type III, mixed Types II/III and Type IV kerogens, with a predominance of Type II, Type III and mixed Type II/III. Based on pyrolysis data (Tmax 417 to 473oC; PI = 0.02 to 0.47; highly variable HI = 13 to 1 000 mg/gTOC; OI = 16 to 225 mg/g; and VR values of between 0.24 to 0.95% Ro) we suggest that the Triassic Mbuo Formation and possibly the mid-Jurassic Mihambia Formation have a higher potential for hydrocarbon generation than the Nondwa Formation as they are relatively thermally mature.

The theory of the crystallography of deformation twinning

1965 ◽  
Vol 288 (1413) ◽  
pp. 240-255 ◽  
Keyword(s):  
Crystal Structures ◽  
Deformation Twinning ◽  
Type I ◽  
Lattice Structures ◽  
Type Ii ◽  
Orientation Relationships ◽  
Tensor Calculus ◽  
Moving Interface ◽  
Twinning Shear ◽  
Crystallographic Characteristics

The crystallographic characteristics of deformation twinning are derived by considering the atomic movements which occur at the moving interface as a twin propagates. This is facilitated by making use of the notation of the tensor calculus, and general expressions, valid for all crystal structures, are obtained giving the magnitude of the twinning shear and relating the twinning elements for both type I and type II twinning. The atomic shuffles, which in general must accompany the twinning shear in both single and multiple lattice structures, are examined in detail and expressions are derived for their magnitudes and directions for the cases of the four classical orientation relationships associated with deformation twinning. The use of these expressions in predicting operative twinning modes is described and the relations between this theory and other recent theories of the crystallography of deformation twinning are discussed.

scholarly journals Characterization of two types of azedinha in the region of Sete Lagoas, Brazil

2013 ◽  
Vol 31 (2) ◽  
pp. 328-331 ◽  
Author(s):  
Ernani C da Silva ◽  
Lanamar de A Carlos ◽  
Ana Paula Araújo ◽  
Leila de CL Ferraz ◽  
Marinalva W Pedrosa ◽  
...  
Keyword(s):  
Transverse Diameter ◽  
Type I ◽  
Type Ii ◽  
Vegetable Crop ◽  
Rumex Acetosa ◽  
Crop Species ◽  
Minas Gerais State ◽  
Length Width ◽  
Longitudinal Diameter

Azedinha (Rumex acetosa) is a vegetable crop species consumed in natura in salads and pertains to the group of non-conventional vegetables. These rustic plants are often considered weeds plants. There exist two types of native azedinha in the Sete Lagoas region, Minas Gerais state, Brazil, that are usually grown in family gardens and here denominated Type I and Type II. In this study we characterized the morphologic, physic-chemical and chromatic characteristic of these two types of azedinha. The study was carried out in randomized complete blocks with four replications in dependences of the EPAMIG (Non-Conventional Vegetable Bank) in Prudente de Morais, Brazil. Plants were trained to the point of harvest, 90 days after the planting of seedlings, when they were harvested for analysis. We evaluated the characteristics on the leaves: weight, length, width, number of veins, width/length ratio, transverse and longitudinal diameter of the base of the petiole and longitudinal and transverse diameter ratio of the base of the petiole. We also evaluated the contents of macro and micronutrients and chemical characteristics of the plant. There are significant differences between the assessed characteristics between azedinha types I and II. We concluded that the plants probably belong to two different varieties.

scholarly journals Isolation and molecular characterization of type I and type II feline coronavirus in Malaysia

2012 ◽  
Vol 9 (1) ◽  
pp. 278 ◽  
Author(s):  
Amer Alazawy ◽  
Siti Suri Arshad ◽  
Abdul Rahman Omar ◽  
Mohd Hair Bejo ◽  
Faruku Bande ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Type I ◽  
Type Ii ◽  
Feline Coronavirus

Identification and characterization of 20 novel pathogenic variants in 60 unrelated Indian patients with mucopolysaccharidoses type I and type II

2016 ◽  
Vol 90 (6) ◽  
pp. 496-508 ◽  
Author(s):  
A. Uttarilli ◽  
P. Ranganath ◽  
D. Matta ◽  
J. Md Nurul Jain ◽  
K. Prasad ◽  
...  
Keyword(s):  
Type I ◽  
Type Ii ◽  
Pathogenic Variants ◽  
Indian Patients ◽  
Identification And Characterization

scholarly journals The type II "receptor" as a decoy target for interleukin 1 in polymorphonuclear leukocytes: characterization of induction by dexamethasone and ligand binding properties of the released decoy receptor.

1994 ◽  
Vol 179 (2) ◽  
pp. 739-743 ◽  
Author(s):  
F Re ◽  
M Muzio ◽  
M De Rossi ◽  
N Polentarutti ◽  
J G Giri ◽  
...  
Keyword(s):  
Polymorphonuclear Leukocytes ◽  
Interleukin 1 ◽  
Soluble Form ◽  
Type I ◽  
Type Ii ◽  
Membrane Expression ◽  
Binding Properties ◽  
Signaling Function ◽  
Human Polymorphonuclear Leukocytes

Whereas the signaling function of the interleukin 1 (IL-1) receptor type I (IL-1R I) has been well documented, the type II "receptor" has been suggested to act as a decoy target for this cytokine. Since IL-1 may represent a key target of the immunomodulatory and antiinflammatory properties of glucocorticoids (GC), the aim of this study was to investigate the effects of dexamethasone (Dex) on IL-1R expression in human polymorphonuclear leukocytes (PMN), which express predominantly the type II molecule (IL-1R II). We found that Dex augments the levels of steady state transcripts encoding the IL-1R I and, most prominently, those of IL-1R II. Dex induced both transcripts via transcription-dependent mechanisms and by prolongation of the mRNAs half-lives. Inhibition of protein synthesis superinduced basal and Dex-augmented IL-1R II mRNA, whereas it completely inhibited the induction by Dex of IL-1R I transcripts. Induction of IL-1R II mRNA by Dex was associated with augmented membrane expression and release of the type II IL-1 binding molecule. This effect was mediated by the GC receptor. Other steroids (17 beta-estradiol, progesterone, and testosterone) were ineffective. The concentrations of IL-1 alpha and IL-1 receptor antagonist required to displace the binding of IL-1 beta to the soluble form of the decoy molecule induced by Dex from PMN were, respectively, 100 and 2 times higher compared with IL-1 beta. The induction by Dex of the type II receptor, a decoy molecule for IL-1, may contribute to the immunosuppressive and antiinflammatory activities of Dex.

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