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Autore: Grafiati

Pubblicato: 26 luglio 2024

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1

ALIPOOR, ZAHRA, ZOHREH GHOLAMZADEH, MAHDI SADEGHI, SOLALEH SEYYEDI e MORTEZA AREF. "DATA EVALUATION ACQUIRED TALYS 1.0 CODE TO PRODUCE 111In FROM VARIOUS ACCELERATOR-BASED REACTIONS". International Journal of Modern Physics E 20, n. 05 (maggio 2011): 1307–24. http://dx.doi.org/10.1142/s0218301311018332.

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The Indium-111 physical-decay parameters as a β-emitter radionuclide show some potential for radiodiagnostic and radiotherapeutic purposes. Medical investigators have shown that 111 In is an important radionuclide for locating and imaging certain tumors, visualization of the lymphatic system and thousands of labeling reactions have been suggested. The TALYS 1.0 code was used here to calculate excitation functions of 112/114–118 Sn+p , 110 Cd +3 He , 109 Ag +3 He , 111–114 Cd+p , 110/111 Cd+d , 109 Ag +α to produce 111 In using low and medium energy accelerators. Calculations were performed up to 200 MeV. Appropriate target thicknesses have been assumed based on energy loss calculations with the SRIM code. Theoretical integral yields for all the latter reactions were calculated. The TALYS 1.0 code predicts that the production of a few curies of 111 In is feasible using a target of isotopically highly enriched 112 Cd and a proton energy between 12 and 25 MeV with a production rate as 248.97 MBq·μA-1 · h-1. Minimum impurities shall be produced during the proton irradiation of an enriched 111 Cd target yielding a production rate for 111 In of 67.52 MBq· μA-1 · h-1.

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2

LU, HUNG-CHIEH, e LOU-SING KAN. "CADMIUM AND PROTON NMR STUDY ON [Cd2(BIS(2-PYRIDYL)FORMAMINE)3]". Biophysical Reviews and Letters 03, n. 04 (ottobre 2008): 491–500. http://dx.doi.org/10.1142/s1793048008000861.

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The structure of a bi - Cd organic complex [ Cd 2(bis(2-pyridyl)formamine)3 or 1], is analyzed thoroughly by 1 H and 113/111 Cd NMR in solution. Only one representative set of pyridyl proton resonance of a total of six pyridines in 1 was observed. The resonance of protons in pyridine ring can be assigned by both 2D COSY and 2D NOESY. Similarly, only one Cd (either 113 Cd or 111 Cd NMR signal was observed too. This indicates that the two Cd atoms in 1 are chemically equivalent. The Cd signal is split by its three neighboring equivalent protons on the bridged carbon atoms ( C a H )3, resulting in a quartet. The 3 J 113 Cd –1 H and 3 J 111 Cd –1 H are 44 and 42 Hz, respectively, measured directly from the spectral pattern. The proton NMR signals of C a H composed from three sources: (1) superimposed doublets arising from Cd – H –113 Cd and Cd – H –111 Cd ; (2) a pseudo triplet from 113 Cd – H –113 Cd , 111 Cd – H –111 Cd and 113 Cd – H –111 Cd and (3) a singlet from those H's surrounded by all non-magnetic Cd atoms. They superimpose and appear as a quintet with intensity ratio of 1:12:38:12:1, explainable by the above constituents and their associated Cd – H splitting analyses. We deduced that the three bis(2-pyridyl)formamidine groups have a three-fold symmetry with respect to the Cd – Cd axis, i.e., the three bis(2-pyridyl)formamidine units are co-planar and spaced 120 degrees from each other based on above observations. This implies the key C a atom exists as a hybrid of two canonical forms (– N = C a H – N – ↔ – N – C a H = N –). As a consequence, 1 does not exhibit chirality. We exemplified that Cd NMR study is well suited for investigating those metalloproteins if the calcium and/or zinc ions contained can be replaced by 113 Cd /111 Cd ions of similar size.

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3

Pan, Guyue, Yongsheng Zhang, Yonggang Li, Chuanguo Zhang, Zhe Zhao e Zhi Zeng. "Orientation-dependent behaviors of H dissolution and diffusion near W surfaces: A first-principles study". International Journal of Modern Physics C 28, n. 07 (luglio 2017): 1750090. http://dx.doi.org/10.1142/s0129183117500905.

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The dissolution and diffusion behaviors of H in the four low-Miller-index W surfaces ((110), (112), (100) and (111)) are systematically studied by the density functional theory approach to understand the orientation dependence of the H bubble distribution on surface. The results show that H accumulation on surface is influenced by H diffusion barrier as well as vacancy and H formation. The barriers of diffusion towards surfaces are larger than that in bulk. It indicates that H is prone to diffuse into the deep in bulk once H dissolves in surface. H is preferred to accumulate on the W(111) surface due to the lower formation energies of vacancy and H comparing to that in bulk. However, W(110) is the resistant surface for forming H bubble due to the higher formation energies of vacancy and H. The results are helpful for understanding the orientation dependence of surface damages on W surface and designing new plasma-facing materials.

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4

Chorniy, R. "Guilt in compositions of crimes against bases of national safety of Ukraine: problem questions of theory and fixing in a law on criminal responsibility". Herald of criminal justice, n. 3 (2019): 136–50. http://dx.doi.org/10.17721/2413-5372.2019.3/136-150.

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The article is devoted to the investigation of forms and types of guilt in the composition of crimes against the basics of national security of Ukraine. The presence of a number of unresolved issues at the theoretical and legal level on this issue actualizes the need for its scientific elaboration and formulation of proposals to improve the provisions of the law on criminal liability. The purpose of the article is to investigate the problematic issues of forms and types of guilt in crimes against the bases of national security of Ukraine, ways of fixing them in the articles of Section I of the Special part of the Criminal Code of Ukraine and to develop sound proposals for their solution based on the provisions of the doctrine of criminal law. The article presents the existing approaches of doctrinal interpretation by scientists of the provisions on wine, its forms and types, through which the research of this feature in the crimes under Art. Art. 109 - 114-1 of the Criminal Code of Ukraine. It is proved that the most reasonable is the psychological concept of guilt, which promotes the insertion of forms and types of guilt in crimes against the basics of national security with a formal composition, the elucidation of forms of guilt in the warehouses of crimes provided by articles of section I of the Special part of the Criminal Code of Ukraine, in which the legislator directly does not say that it is one of the preconditions for the proper qualification of the act committed by the person. It is proved that the basis for the conclusion about the intentional form of guilt is based on: 1) a direct indication of it in the norm of the law (Part 1 of Article 110 and Part 1 of Article 111 of the Criminal Code of Ukraine); 2) indication of the specific purpose or motives of the criminal behavior (Part 1 of Article 109, Note 1, Part 1 and Part 2 of Article 110-2, Article 113, Part 1 of Article 114 and Article 112 of the Criminal Code of Ukraine) ; 3) combination of the above mentioned features in one norm (Part 1 of Article 110 of the Criminal Code of Ukraine); 4) interpretation of terms used in the dispositions of certain articles and / or through the description in the law of the features of the crime (Part 1 of Article 110, Part 2 of Article 109, Part 1 of Article 110, Part 1 of Article 111, Article 112, Article 113, Part 1 of Article 114 and Part 1 of Article 114-1 of the Criminal Code of Ukraine); 5) interpretation of terms used in other articles of the Special (espionage as a part of state treason) or articles of the General part of the Criminal Code of Ukraine (conspiracy to commit the actions provided for in part 1 of Article 109 of the Criminal Code of Ukraine (Article 26 of the Criminal Code of Ukraine), attempted murder state or public figure (Article 112 of the Criminal Code of Ukraine) (part 1 of Article 15 of the Criminal Code of Ukraine); 6) the orientation of socially dangerous acts. The specifics of constructing all these norms testify to the direct intent of the person who committed the respective crime. On this basis it is substantiated that the lack of specification of intent in part 1 of Art. 111 and Part 1 of Art. 110 of the Criminal Code of Ukraine does not contribute to the clarity of the provisions of the Criminal Code in the specified part, and the direct intent in the composition of these crimes is evidenced by: 1) special purpose (Part 1 of Article 110 of the Criminal Code); 2) the terms used in the dispositions of the said articles (“violation of the order… established by the Constitution of Ukraine” (part 1 of Article 110), “transfer of information…, transition to the enemy's side, rendering… assistance in carrying out subversive activities against Ukraine”) ( Part 1 of Article 111); 3) the focus of socially dangerous action. In order to eliminate the ambiguous interpretation of the provisions of Part 1 of Art. 110 and Part 1 of Art. 111 of the Criminal Code it is proposed to amend them accordingly. The forms and type of guilt in the warehouses of crimes with material composition (Part 3 of Article 110, Part 3 and 4 of Article 110-2, Part 2 of Article 114-1 of the Criminal Code of Ukraine) were not clearly reflected in the relevant rules of the law. It is substantiated that the subject's attitude to socially dangerous consequences (deaths of people (h. 3 Art. 110, h. 2 Art. 114-1), other grave consequences (h. 3 Art. 110, h. 4 Art. 110- 2, Part 2 of Article 114-1) Causing considerable property damage (Part 3 of Article 110-2) can be intentional or negligent.

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5

Svensson, Ann-Marie, Marko Modiano, Angela Karstadt, Mats Mobärg, Åke Persson, Monica Armini, Peter Boxall et al. "Reviews and notices". Moderna Språk 94, n. 1 (1 giugno 2000): 101–19. http://dx.doi.org/10.58221/mosp.v94i1.9661.

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Includes the following reviews: p. 101. Ann-Marie Svensson. Lightfoot, D., The Development of Language, Acquisition, Change, and Evolution. p. 101-103. Marko Modiano. Ronowicz, E. & Yallop, C. (eds), English: One Language, Different Cultures. p. 103-105. Angela Karstadt. Klintborg, S., The Transience of American English. p. 105-106. Mats Mobärg. Pinker, S., Words and Rules. The Ingredients of Language. p. 106-107. Åke Persson. Cartmell, D. & Whelehan, I. (eds), Adaptations: From Text to Screen, Screen to Text. p. 108. Monica Armini. Rivkin, J. & Ryan, M. (eds), Literary Theory: An Anthology. p. 108-109. Peter Boxall. Paul, R., Dissonant Voices: Literature and Society in Britain from Chaucer to the Present Day. p. 109-110. Maria Proitsaki. Dove, R., On the Bus with Rosa Parks. p. 110-111. Ronald Paul. Arundhati, R., The Cost of Living. p. 111. Sabina Kielow. Chouliaraki, L. & Fairclough, N., Discourse in late Modernity: Rethinking Critical Discourse Analysis. + Mills, S., Discourse. The New Critical Idiom. p. 112-114. Lars-Olof Nyhlén. Ammon, U. Ist deutsch noch internationale Wissenschaftssprache? p. 114-115. Sigurd Rothstein. Treichel, H. -U., Der Verlone. p. 116-117. M. Martin Guiney. Horlitz, M. Germanistische Schlaglichter. p. 118-119. M. Martin Guiney. Conner, T., Chateaubriand's Mémoires d'outre-tombe. A portrait of the Artist as Exile.

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6

Melkozerova, J. A., e I. K. Gainullin. "Theoretical study of resonant charge exchange between H−ion and adsorbate-covered metal surface Cu(111)/Cu(110) with adsorbates Li+/Na+". Seriya 3: Fizika, Astronomiya, n. 4_2023 (20 settembre 2023): 2340504–1. http://dx.doi.org/10.55959/msu0579-9392.78.2340504.

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The influence of the surface type on resonant charge exchange between H−ion with a metal surfaces Cu(111) and Cu(110) covered by adsorbate Li+/Na+has been studied. A model static problem was considered. For modeling, athree-dimensional realization of the wave-packet propagation method was used. The Cu(110) andCu(111) surfaces were described by a pseudopotential, derived from a density functional theory (DFT).An occupation of H− ion, an electron density dynamics and an ion level width were analyzed. As aresult, we obtained that an electron oscillates more in case of the surface Cu(111). Furthermore, the resonant charge exchange is more efficient for Cu(111) surface.

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7

Wang, Runnan, Qingyan Xu, Xiufang Gong, Xianglin Su e Baicheng Liu. "Experimental and Numerical Studies on Recrystallization Behavior of Single-Crystal Ni-Base Superalloy". Materials 11, n. 7 (19 luglio 2018): 1242. http://dx.doi.org/10.3390/ma11071242.

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The recrystallization (RX) behavior of superalloy during standard solution heat treatment (SSHT) varies significantly with deformation temperature. Single-crystal (SX) samples of Ni-base superalloy were compressed to 5% plastic deformation at room temperature (RT) and 980 °C, and the deformed samples were then subjected to SSHT process which consists of 1290 °C/1 h, 1300 °C/2 h, and 1315 °C/4 h, air cooling. RT-deformed samples showed almost no RX grains until the annealing temperature was elevated to 1315 °C, while 980 °C-deformed samples showed a large number of RX grains in the initial stage of SSHT. It is inferred that the strengthening effect of γ’ phases and the stacking faults in them increase the driving force of RX for 980 °C-deformed samples. The RX grains nucleate and grow in dendritic arms preferentially when the microstructural inhomogeneity is not completely eliminated by SSHT. A model coupling crystal plasticity finite element method (CPFEM) and cellular automaton (CA) method was proposed to simulate the RX evolution during SSHT. One ({111} <110>) and three ({111} <110>, {100} <110>, {111} <112>) slip modes were assumed to be activated at RT and 980 °C in CPFEM calculations, respectively. The simulation takes the inhomogeneous as-cast dendritic microstructure into consideration. The simulated RX morphology and density conform well to experimental results.

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Kjellmer, Göran, Ann-Marie Svensson, Monica Malm, Paul Goulding, Ronald Paul, Nathaniel Chase, Alan McGee et al. "Reviews and notices". Moderna Språk 92, n. 1 (1 giugno 1998): 100–120. http://dx.doi.org/10.58221/mosp.v92i1.9847.

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Includes the following reviews:pp. 100-102. Göran Kjellmer. Hill, J. & Lewis, M. (eds), Dictionary of Selected Collocations. pp. 102-103. Ann-Marie Svensson. Lass, R., Historical linguistics and language change. p. 103. Monica Malm. Cixous, H. & Calle-Gruber, M., Rootprints: Memory and Life Writing. p. 104. Paul Goulding. Storry, M. & Childs, P. (ed.), British Cultural Identities. p. 105. Ronald Paul. Young, G., From Sea to Shining Sea: a present-day journey into America's past. pp. 105-106. Monica Malm. Coupe, L., Myth. pp. 106-107. Nathaniel Chase. Modiano, M., A Mid-Atlantic Handbook. American and British English. p. 107. Alan McGee. Bowen, T., Build Your Business Grammar. pp. 107-108. Alan McGee. Comfort, J., Effective Socializing. pp. 108. Alan McGee. Mackenzie, I., Management and Marketing. pp. 109-110. Edelgard Biedermann. Besch, W., Duzen, Siezen, Titulieren: Zur Anrede im Deutschen heute und gestern. pp. 110-111. Stefan Neuhaus. Cumart, N., Zwei Welten. Gedichte. pp. 112-113. Stefan Neuhaus. Fontane, T., Englischer Sommer. pp. 113-115. Hans-Roland Johnsson. Brown, F., Zola, A Life. pp. 115-118. Karl-Anders Arvidsson. Le Nouveau Petit Robert électronique. pp. 118-120. Gabriella Villagrán Backman. Foster, D.W., Mexican Literature: A History.

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9

Myerscough, Megan, Wes Chapple, William T. Meteer e Daniel W. Shike. "22 Effects of Housing Cow-calf Pairs on Drylots vs Pasture on Calf Performance and Behavior Through Weaning". Journal of Animal Science 99, Supplement_1 (1 maggio 2021): 24. http://dx.doi.org/10.1093/jas/skab054.042.

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Abstract The objectives were to analyze the effects of housing cow-calf pairs in drylots or pasture on calf performance and behavior through weaning. Simmental × Angus (2 yr; 108/yr; 81 ± 15.3 d postpartum) spring-calving cows were stratified by age, BW, BCS, and calf sex and allotted to six groups/yr. Groups were randomly allotted to 1 of 2 treatments: drylot (DL) or pasture (PAST). Calves in the drylot had ad libitum access to a diet consisting of corn silage, dried distillers grain, corn stalks, dry rolled corn, and soybean hulls. Calves on PAST received creep feed three weeks prior to weaning. Calf BW was measured on d 0, 55, and 110. Calves were fence-line weaned on d 110. Behavior was observed for two days after weaning. Data were analyzed using the MIXED procedure of SAS. Drylot calves had greater (P < 0.01) BW at d 55 and 110. There was treatment by time interactions (P < 0.01) for lying and eating on d 111. More PAST calves were lying at h 2 and 3 and eating at h 11 and 12. More DL calves were lying at h 9, 10, 11, and 12. More DL calves were eating at h 2 and tended to at h 3. There was also a treatment by time interaction (P < 0.01) for vocalizations on d 111. More PAST calves vocalized at h 1, however, DL calves vocalized more at h 4 and tended to at h 5. There was treatment by time interactions (P < 0.01) for eating and walking on d 112. More DL calves were eating at h 2, 3, 4, 7, and 9. More PAST calves were walking at h 1 and 2. There was also a treatment by time interaction (P < 0.01) for vocalizations on d 112. More PAST calves vocalized at h 1 and 10. In conclusion, housing cow-calf pairs in drylots improved preweaning performance and altered postweaning behavior.

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Bauschlicher, Charles W., e Marzio Rosi. "Differentiating between H and F or H and CN on C(111) or Si(111) Surfaces". Journal of Physical Chemistry B 102, n. 13 (marzo 1998): 2403–5. http://dx.doi.org/10.1021/jp9734742.

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11

OSHIMA, C., N. TANAKA, A. ITOH, E. ROKUTA, K. YAMASHITA e T. SAKURAI. "A HETEROEPITAXIAL MULTI-ATOMIC-LAYER SYSTEM OF GRAPHENE AND h-BN". Surface Review and Letters 07, n. 05n06 (ottobre 2000): 521–25. http://dx.doi.org/10.1142/s0218625x00000683.

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Multi-atomic-layer systems stacked with monolayer graphene/monolayer h-BN/Ni(111) have been grown in an epitaxial manner. The graphene overlayer formation changes drastically the interfacial interaction between the h-BN layer and Ni(111). As a result, a peculiar property of the monolayer h-BN on Ni(111) changes to a bulklike one. The π–d orbital hybridization at the interface disappears. Accordingly, a metallic character of monolayer h-BN disappears, the soft TO⊥ phonon returns to the bulk one, and the reduced lattice constant of h-BN on Ni(111) also returns to the bulk one. In contrast, the h-BN overlayer formation does not change the interface between the monolayer graphene and Ni(111). From those data, the strength order of interfacial bonds changes as follows: graphene/Ni(111) > graphene/h-BN > h-BN/Ni(111).

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12

Greuter, F., I. Strathy, E. W. Plummer e W. Eberhardt. "Photoemission from H adsorbed on Ni(111) and Pd(111) surfaces". Physical Review B 33, n. 2 (15 gennaio 1986): 736–46. http://dx.doi.org/10.1103/physrevb.33.736.

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13

Editor, The. "Abstracts from current literature Vol 38(2)". Dhaka Shishu (Children) Hospital Journal 38, n. 2 (26 dicembre 2023): 111–12. http://dx.doi.org/10.3329/dshj.v38i2.70597.

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14

Hammer, L., H. Landskron, W. Nichtl-Pecher, A. Fricke, K. Heinz e K. Müller. "Hydrogen-induced restructuring of close-packed metal surfaces: H/Ni(111) and H/Fe(110)". Physical Review B 47, n. 23 (15 giugno 1993): 15969–72. http://dx.doi.org/10.1103/physrevb.47.15969.

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15

Corregidor, Victoria, Nuno Franco, Eduardo Alves e Nuno P. Barradas. "Phase Separation on GaInAsSb Films for Thermophotovoltaic Devices". Materials Science Forum 514-516 (maggio 2006): 447–51. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.447.

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Ga0.81In0.19As0.14Sb0.86 layers were grown on (100)-Te doped GaSb substrates 2º missoriented towards (110), (111)A and (111)B directions by metalorganic vapour deposition (MOVPE) at 540 °C. X-ray reciprocal space maps done in symmetric (224) and asymmetric (115) directions show a super-lattice structure due to the phase separation with a 5 nm period and independent of substrate orientation. The x-ray maps show different stage of relaxation of the films and in same cases an interdiffusion region near the substrate. Despite of the phase separation, channelling experiments with H ions as projectiles showed a good quality of the films. Channelling experiments show that the crystalline quality gets worse with increasing the In and As concentration.

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Seth, Michael, e Peter Schwerdtfeger. "A comparison of relativistic and electron correlation effects for (111)F, (111)H and (111)Li". Chemical Physics Letters 318, n. 4-5 (febbraio 2000): 314–18. http://dx.doi.org/10.1016/s0009-2614(00)00034-8.

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NOBUHARA, Kunihiro, Hideaki KASAI, Hiroshi NAKANISHI e Wilson Agerico DIÑO. "H/Pd(111) Absorption and Desorption Dynamics". SHINKU 46, n. 3 (2003): 177–80. http://dx.doi.org/10.3131/jvsj.46.177.

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Bodlaki, D., e E. Borguet. "Photoreactivity of Si(111)−H in Ambient". Journal of Physical Chemistry C 111, n. 1 (gennaio 2007): 234–39. http://dx.doi.org/10.1021/jp0639546.

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Liu, Na, Xue-Ye Wang e Ya-Li Wan. "First principle calculations of hydrogen sulfide adsorption and dissociation on pure Pd (111) and Au (111), and alloy Pd/Au (111) and Au/Pd (111) surfaces". Journal of Theoretical and Computational Chemistry 13, n. 08 (dicembre 2014): 1450065. http://dx.doi.org/10.1142/s0219633614500655.

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The hydrogen sulfide adsorption and dissociation on pure Pd (111) and Au (111), alloy Pd / Au (111) and Au / Pd (111) surfaces have been investigated using the pseudo-potential plane wave method within the generalized-gradient approximation density functional theory (GGA+DFT). The results show that H 2 S tends to be adsorbed on top site, HS prefers to locate on bridge site, and the S and H locate on fcc site on various surfaces. Compared the adsorption of sulfur-containing species and hydrogen on pure and alloy metal surfaces, a similar trend of adsorption energies on the metal surfaces ( Pd / Au (111) > Pd (111) > Au (111) > Au / Pd (111)) is found. In addition, the dissociation process on the Pd (111) and Pd / Au (111) surfaces is predicted to be exothermic. However, on Au (111) and Au / Pd (111), the dissociation process is endothermic. The work reveals that H 2 S dissociation is more likely to happen on Pd / Au (111) surface. Finally, the adsorption energies of adsorbate on metal surfaces have strong correlation with the d-band center. The d-band center moves away from the Fermi level, and the adsorption energy decreases. According to the LDOS analysis, the inner Au atoms of Pd / Au (111) can enhance the top-layer d-band intensity, whereas the inner Pd atoms of Au / Pd (111) cause the opposite effect. The further electronic state analysis reveals the interaction between H 2 S and metal surfaces.

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Giordano, L., L. Di Piazza, M. I. Trioni e F. Montalenti. "Theoretical evidence for fast H-divacancy rotation on H/Pd(111)". Chemical Physics Letters 400, n. 1-3 (dicembre 2004): 163–68. http://dx.doi.org/10.1016/j.cplett.2004.10.085.

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Nobuhara, K., H. Nakanishi, H. Kasai e A. Okiji. "Quantum mechanical behavior of an H atom on Cu(111) and Pt(111)". Journal of Applied Physics 91, n. 4 (15 febbraio 2002): 1855–59. http://dx.doi.org/10.1063/1.1432480.

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Prod’homme, P., F. Maroun, R. Cortès e P. Allongue. "Electrochemical growth of ultraflat Au(111) epitaxial buffer layers on H–Si(111)". Applied Physics Letters 93, n. 17 (27 ottobre 2008): 171901. http://dx.doi.org/10.1063/1.3006064.

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Vasquez, Natividad, e R. J. Madix. "Reactivity of Unsaturated Linear C6Hydrocarbons on Pd(111) and H(D)/Pd(111)". Journal of Catalysis 178, n. 1 (agosto 1998): 234–52. http://dx.doi.org/10.1006/jcat.1998.2133.

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KAWASAKI, TOYOSEI, TAKASHI ICHIMURA, HIROSHI KISHIMOTO, ADE ASNEIL AKBAR, TAKASHI OGAWA e CHUHEI OSHIMA. "DOUBLE ATOMIC LAYERS OF GRAPHENE/MONOLAYER h-BN ON Ni(111) STUDIED BY SCANNING TUNNELING MICROSCOPY AND SCANNING TUNNELING SPECTROSCOPY". Surface Review and Letters 09, n. 03n04 (giugno 2002): 1459–64. http://dx.doi.org/10.1142/s0218625x02003883.

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Using STM, we have directly confirmed the incommensurate stacking of double atomic layers of graphene and monolayer h-BN on Ni(111). The formation of a graphene layer weakens the interfacial interaction between monolayer h-BN and Ni(111), resulting in insulating h-BN layers, while a pristine monolayer h-BN on Ni(111) is metallic. The STS spectra of the double atomic layers showed a tunneling character with a band gap of 0.5 eV.

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Keck, Zhen-Yong, Vicky M. H. Sung, Susan Perkins, Judy Rowe, Sudhir Paul, T. Jake Liang, Michael M. C. Lai e Steven K. H. Foung. "Human Monoclonal Antibody to Hepatitis C Virus E1 Glycoprotein That Blocks Virus Attachment and Viral Infectivity". Journal of Virology 78, n. 13 (1 luglio 2004): 7257–63. http://dx.doi.org/10.1128/jvi.78.13.7257-7263.2004.

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ABSTRACT Human antibodies elicited in response to hepatitis C virus (HCV) infection are anticipated to react with the native conformation of the viral envelope structure. Isolation of these antibodies as human monoclonal antibodies that block virus binding and entry will be useful in providing potential therapeutic reagents and for vaccine development. H-111, an antibody to HCV envelope 1 protein (E1) that maps to the YEVRNVSGVYH sequence and is located near the N terminus of E1 and is able to immunoprecipitate E1E2 heterodimers, is described. Binding of H-111 to HCV E1 genotypes 1a, 1b, 2b, and 3a indicates that the H-111 epitope is highly conserved. Sequence analysis of antibody V regions showed evidence of somatic and affinity maturation of H-111. Finally, H-111 blocks HCV-like particle binding to and HCV virion infection of target cells, suggesting the involvement of this epitope in virus binding and entry.

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SHUTTLEWORTH, I. G. "THE SATURATED (3 × 3)-H/Cu(111) SYSTEM: A STRUCTURAL STUDY USING MEDIUM-ENERGY ION SCATTERING AND HELIUM ATOM SCATTERING". Surface Review and Letters 14, n. 06 (dicembre 2007): 1191–98. http://dx.doi.org/10.1142/s0218625x07010792.

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Abstract (sommario):

The adsorption of atomic hydrogen on Cu (111) has been studied using the techniques of helium atom scattering (HAS) and medium-energy ion scattering (MEIS). Ion scattering investigations of the saturated (3 × 3)- H / Cu (111) system indicate that no reconstruction of the Cu substrate exists along the high symmetry directions of the surface. The HAS hydrogen cross-section for H / Cu (111) has been determined to be (12.5 ± 2.5 Å2). The symmetry of the HAS diffraction pattern shows that the (3 × 3)- H / Cu (111) system is formed of a single domain structure.

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27

Buchan, Alastair M., Stan Z. Gertler, Hui Li, Dong Xue, Zhi-Gao Huang, Karen E. Chaundy, Kimberley Barnes e Howard J. Lesiuk. "A Selective N-Type Ca2+-Channel Blocker Prevents CA1 Injury 24 h following Severe Forebrain Ischemia and Reduces Infarction following Focal Ischemia". Journal of Cerebral Blood Flow & Metabolism 14, n. 6 (novembre 1994): 903–10. http://dx.doi.org/10.1038/jcbfm.1994.121.

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Abstract (sommario):

SNX-111 (NEUREX Corporation, Menlo Park, CA, U.S.A.) an ω-conopeptide, was tested for cytoprotection following normothermic ischemia using both a four-vessel occlusion model of severe forebrain ischemia and a model of transient middle cerebral artery occlusion focal ischemia. Adult male Wistar rats were subjected to 10 min of forebrain ischemia followed by 7 days of reperfusion. A single dose of SNX-111 (5 mg/kg) was injected intravenously following delays of either 6 or 24 h after reperfusion. For 11 rats treated with saline, there was 78 ± 13% CA1 neuronal injury (mean ± SD); for 11 given SNX-111 delayed by 6 h, injury was reduced to 35 ± 30% ( p < 0.01); and remarkably, treatment delayed by 24 h ( n = 10), still resulted in protection, with only 50 ± 29% injury ( p < 0.05). Adult male spontaneously hypertensive rats had transient occlusion of the right middle cerebral artery of 1.5- or 2-h duration followed by 22.5 or 22 h of reperfusion, respectively. Rats were randomly assigned to receive either saline or SNX-111 (5 mg/kg i.v.), with treatment starting immediately after reperfusion (1.5-h ischemic group) or at 1 h following the onset of ischemia (2-h ischemic group). In the 1.5-h ischemic group, saline-treated animals sustained 138 ± 32 mm3 of neocortical infarction ( n = 9), and SNX-111 treatment resulted in an infarct reduction to 76 ± 25 mm3 ( n = 9; p < 0.001). In the 2-h ischemic group, saline-treated controls sustained 211 ± 51 mm3 ( n = 6) of infarction, and SNX-111 infusion attenuated the infarct size to 126 ± 50 mm3 ( n = 5; p < 0.05). Because of the hypotensive effects of SNX-111, an additional SNX-111-treated group with intravenous norepinephrine blood pressure support was studied, using 2 h of focal ischemia and 22 h of reperfusion. In this group, combined treatment resulted in 141 ± 22 mm3 of infarction ( n = 5; p < 0.05). These data suggest that Ca2+ fluxes through ω-conopeptide-sensitive N-type Ca2+ channels are critically involved in the pathogenesis of selective neuronal death up to 24 h after ischemia in the hippocampus and that this conopeptide protection extends, even when given late, to neocortical infarct reduction.

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28

SHUTTLEWORTH, I. G., e W. ALLISON. "THE ADSORPTION AND DESORPTION PROCESSES ACCOMPANYING THE CHEMICAL VAPOUR DEPOSITION OF SILANE ON Cu(111) AND Ni(111)". Surface Review and Letters 08, n. 06 (dicembre 2001): 613–20. http://dx.doi.org/10.1142/s0218625x01001567.

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Abstract (sommario):

The adsorption and desorption processes accompanying the deposition of silane on Cu(111) and Ni(111) have been investigated using work function change (Δϕ), Auger electron spectroscopy (AES) and thermal desorption spectroscopy (TDS). In the early stages of deposition (0–2 L), at 130 K, on the Cu(111) surface, a predominantly hydrogenic phase forms. Heating the saturated surface to Ts>400 K produces a two-phase system: Cu 2 Si alloy and clean Cu(111). The regenerated Cu(111) phase extends across (16 ± 1)% of the total surface area and this process of clean surface generation can be repeated by redosing onto the mixed phase surface. The temperature coefficient of the work function of the Cu 2 Si alloy surface is -(7 ± 2) × 10-5 eV/K. Dosing silane onto the 110 K Ni(111) surface to saturation deposits a relatively small amount (0.05 ML) of Si. However, the Δϕ and TDS spectra are significantly distorted from their pure H/Ni(111) counterparts.

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29

Wu, Ling-Nan, Zhen-Yu Tian e Wu Qin. "A Density Functional Theory and Microkinetic Study of Acetylene Partial Oxidation on the Perfect and Defective Cu2O (111) Surface Models". Molecules 27, n. 19 (10 ottobre 2022): 6748. http://dx.doi.org/10.3390/molecules27196748.

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Abstract (sommario):

The catalytic removal of C2H2 by Cu2O was studied by investigating the adsorption and partial oxidation mechanism of C2H2 on both perfect (stoichiometric) and CuCUS-defective Cu2O (111) surface models using density functional theory calculations. The chemisorption of C2H2 on perfect and defective surface models needs to overcome the energy barrier of 0.70 and 0.81 eV at 0 K. The direct decomposition of C2H2 on both surface models is energy demanding with the energy barrier of 1.92 and 1.62 eV for the perfect and defective surface models, respectively. The H-abstractions of the chemisorbed C2H2 by a series of radicals including H, OH, HO2, CH3, O, and O2 following the Langmuir–Hinshelwood mechanism have been compared. On the perfect Cu2O (111) surface model, the activity order of the adsorbed radicals toward H-abstraction of C2H2 is: OH > O2 > HO2 > O > CH3 > H, while on the defective Cu2O (111) surface model, the activity follows the sequence: O > OH > O2 > HO2 > H > CH3. The CuCUS defect could remarkably facilitate the H-abstraction of C2H2 by O2. The partial oxidation of C2H2 on the Cu2O (111) surface model tends to proceed with the chemisorption process and the following H-abstraction process rather than the direct decomposition process. The reaction of C2H2 H-abstraction by O2 dictates the C2H2 overall reaction rate on the perfect Cu2O (111) surface model and the chemisorption of C2H2 is the rate-determining step on the defective Cu2O (111) surface model. The results of this work could benefit the understanding of the C2H2 reaction on the Cu2O (111) surface and future heterogeneous modeling.

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30

Gui, Qingzhong, Zhen Wang, Chunmin Cheng, Xiaoming Zha, John Robertson, Sheng Liu, Zhaofu Zhang e Yuzheng Guo. "Theoretical study of the interface engineering for H-diamond field effect transistors with h-BN gate dielectric and graphite gate". Applied Physics Letters 121, n. 21 (21 novembre 2022): 211601. http://dx.doi.org/10.1063/5.0117263.

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Abstract (sommario):

Diamond has compelling advantages in power devices as an ultrawide-bandgap semiconductor. Using first-principles calculations, we systematically investigate the structural and electronic properties of hydrogen-terminated diamond (H-diamond) (111) van der Waals (vdW) heterostructures with graphite and hexagonal boron nitride (h-BN) layers. The graphite/H-diamond heterostructure forms a p-type ohmic contact and the p-type Schottky barrier decreases as the number of graphite layers increases. In contrast, the h-BN/H-diamond heterostructure exhibits semiconducting properties and a tunable type-II band alignment. Moreover, the charge transfer is concentrated at the interface with a large amount of charge accumulating on the C–H bonds on the H-diamond (111) surface, indicating the formation of a highly conductive two-dimensional hole gas (2DHG) layer. In a similar vein, the promising structural and electronic properties of graphite, h-BN, and H-diamond (111) in the graphite/h-BN/H-diamond (111) vdW heterostructure are well preserved upon their contact, while such heterostructure exhibits flexible band offset and Schottky contacts. These studies of interface engineering for H-diamond heterostructures are expected to advance the application of 2D materials in H-diamond field effect transistors, which is an important development in the design of surface transfer doping for 2DHG H-diamond devices.

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31

Bitzer, T., M. Gruyters, H. J. Lewerenz e K. Jacobi. "Electrochemically prepared Si(111) 1×1‐H surface". Applied Physics Letters 63, n. 3 (19 luglio 1993): 397–99. http://dx.doi.org/10.1063/1.110054.

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32

Hong-Nian, Li, Wang Xiao-Xiong, He Shao-Long, Zhang Han-Jie, Li Hai-Yang e Bao Shi-Ning. "Electronic structure of Yb/H–Si (111) interface". Chinese Physics 13, n. 11 (26 ottobre 2004): 1941–46. http://dx.doi.org/10.1088/1009-1963/13/11/032.

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33

Ćavar, E., R. Westerström, A. Mikkelsen, E. Lundgren, A. S. Vinogradov, May Ling Ng, A. B. Preobrajenski, A. A. Zakharov e N. Mårtensson. "A single h-BN layer on Pt(111)". Surface Science 602, n. 9 (maggio 2008): 1722–26. http://dx.doi.org/10.1016/j.susc.2008.03.008.

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34

Bahrim, B., S. Yu, B. Makarenko e J. W. Rabalais. "Electron dynamics in H−/Na/Cu(111) collisions". Surface Science 603, n. 4 (febbraio 2009): 703–8. http://dx.doi.org/10.1016/j.susc.2009.01.009.

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35

Harten, U., J. P. Toennies, Ch Wöll, L. Miglio, P. Ruggerone, L. Colombo e G. Benedek. "Surface phonons in Si(111) + H(1×1)". Physical Review B 38, n. 5 (15 agosto 1988): 3305–10. http://dx.doi.org/10.1103/physrevb.38.3305.

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36

Ziegler, J. C., A. Reitzle, O. Bunk, J. Zegenhagen e D. M. Kolb. "Metal deposition on n-Si(111):H electrodes". Electrochimica Acta 45, n. 28 (ottobre 2000): 4599–605. http://dx.doi.org/10.1016/s0013-4686(00)00611-3.

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37

Honke, R., P. Pavone e U. Schröder. "Surface phonons of Si(111):H-(1 × 1) and Si(111):As-(1 × 1)". Surface Science 367, n. 1 (novembre 1996): 75–86. http://dx.doi.org/10.1016/s0039-6028(96)00836-9.

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38

Pistonesi, Carolina, Estela Pronsato e Alfredo Juan. "A DFT study of H adsorption on Pt(111) and Pt–Ru(111) surfaces". Applied Surface Science 254, n. 18 (luglio 2008): 5827–30. http://dx.doi.org/10.1016/j.apsusc.2008.03.167.

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39

Tanaka, T., A. Ito, A. Tajima, E. Rokuta e C. Oshima. "Heteroepitaxial Film of Monolayer Graphene/Monolayer h-BN onNi(111)". Surface Review and Letters 10, n. 05 (ottobre 2003): 721–26. http://dx.doi.org/10.1142/s0218625x03005529.

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Abstract (sommario):

Heteroepitaxial multilayers, consisting of graphene/hexagonal boron nitride (h-BN) films on Ni (111), have been investigated by means of vibrational spectroscopy, low energy electron diffraction and Auger electron spectroscopy. Vibrational spectra of the heteroepitaxial film show the appearance of transverse optical ( TO⊥) modes with out-of-plane polarization at 100 meV of the monolayer h-BN, in contrast to the softening phonon at 90 meV on the pristine system of monolayer h-BN on Ni (111). The findings strongly suggest that the interfacial bonds between h-BN and Ni (111) weaken due to the formation of monolayer graphene.

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40

Jha, Sanjeev K., Ravikant Kumar, Amitesh Kumar, Shubham Purkayastha, Ravi Keshri, Saurabh Kumar e Aditya Vardhan Singh. "Addition of Nitazoxanide to Standard Clarithromycin Based Triple Therapy for 2 Weeks Effectively Eradicates Treatment-Naive Helicobacter Pylori Infection. A Single Centre prospective, open-label study". Middle East Journal of Digestive Diseases 14, n. 1 (30 gennaio 2022): 77–84. http://dx.doi.org/10.34172/mejdd.2022.259.

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Abstract (sommario):

BACKGROUND: The increasing prevalence of antibiotic-resistant strains of Helicobacter pylori (H. pylori) led to reduced success with traditional H. pylori treatments. This warrants further evaluation of other treatment options. One such treatment regimen of interest is nitazoxanide containing regimen. In this study, we evaluated the efficacy of the addition of nitazoxanide to clarithromycin-based triple therapy in patients with H. pylori infection. METHODS: In this single-center prospective observational trial, patients with H. pylori infection were treated with a regimen comprising of nitazoxanide 1000 mg, amoxicillin 2000 mg, clarithromycin 1000 mg, and esomeprazole 80 mg per day (NACE regimen) for14 days. Eradication of H. pylori infection was assessed 4 weeks after completion of therapy by using stool antigen assay. Treatment compliance and adverse effects were also evaluated. RESULTS: Out of 111 patients who entered into the study for final analysis, H. pylori eradication was achieved in 93.7% (104 out of 111) patients in per-protocol analysis and 90.4% (104 out of 115) patients in intention to treat analysis. The treatment regimen was well tolerated. CONCLUSION: The addition of nitazoxanide to standard clarithromycin-based triple therapy effectively eradicates H. pylori infection. This regimen is safe and well tolerated.

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41

Huang, Jianmei, Qiang Wang, Pengfei Liu, Guang-hui Chen e Yanhui Yang. "Tuning adlayer-substrate interactions of graphene/h-BN heterostructures on Cu(111)–Ni and Ni(111)–Cu surface alloys". RSC Advances 11, n. 4 (2021): 1916–27. http://dx.doi.org/10.1039/d0ra08622c.

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Abstract (sommario):

The evolution of the interface and interaction of h-BN and graphene/h-BN (Gr/h-BN) on Cu(111)–Ni and Ni(111)–Cu surface alloys versus the Ni/Cu atomic percentage on the alloy surface were comparatively studied by DFT-D2, including critical long-range van der Waals forces.

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42

Luo, Wenhua, Lei Wan, Gan Li e Tao Gao. "Adsorption and dissociation behavior of H2 on PuH2 (100), (110) and (111) surfaces: a density functional theory+U study". RSC Advances 10, n. 33 (2020): 19576–86. http://dx.doi.org/10.1039/d0ra01621g.

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Abstract (sommario):

The density functional theory (DFT) and DFT plus correction for on-site Coulomb interaction (DFT+U) method were performed to investigate the adsorption and dissociation of H₂ on PuH₂ (100), (110) and (111) surfaces.

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43

Liu, Chunli, Ling Zhu, Xiaodong Wen, Yong Yang, Yong-Wang Li e Haijun Jiao. "Exploring direct and hydrogen-assisted CO activation on iridium surfaces – surface dependent activity". Catalysis Science & Technology 10, n. 13 (2020): 4424–35. http://dx.doi.org/10.1039/c9cy02559f.

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Abstract (sommario):

To understand CO activation on iridium surfaces, direct dissociation, H-assisted activation and hydrogenation to methanol were computed on the flat Ir(111) and Ir(100), corrugated Ir(110) and Ir(210), and stepped Ir(311) and Ir(221) surfaces.

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44

Вариков, Геннадий, Кирилл Дрозд e Виктор Жорник. "Оптимизация процесса газотермического напыления полимерных покрытий, модифицированных наноалмазами". Journal of Civil Protection 3, n. 1 (25 febbraio 2019): 23–31. http://dx.doi.org/10.33408/2519-237x.2019.3-1.23.

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Abstract (sommario):

С использованием метода многомерного проектного синтеза разработана экспериментально-статистическая математическая модель процесса газотермического напыления композиционного полимер-наноалмазного покрытия для различных видов наноразмерного модификатора (очищенные наноалмазы детонационного синтеза (НАДС) и алмазосодержащая шихта (ША)), в которой в качестве управляющих параметров приняты концентрация модификатора в исходной полимер-наноалмазной порошковой композиции (C), давление горючей смеси (Р), дистанция наплыления (l) и толщина покрытия (h), а критериями оптимизации являются адгезионная прочность (σсц) и коррозионная стойкость (К). На основе полученных уравнений регрессии рассчитаны оптимальные параметры процессов газотермического нанесения композиционных полимер-наноалмазных покрытий на полиамидной матрице с различными видами наноалмазного модификатора, удовлетворяющих заданным показателям качества (σсц = 10,0–15,0 МПа, К = 35–40 сут), в следующих границах: для покрытия «полимер-НАДС»: C = 0,15–0,21 масс.%, Р = 0,15–0,25 МПа, l = 83–113 мм, h = 97–111 мкм; для покрытия «полимер-ША-А»: С = 0,18–0,26 масс.%, Р = 0,20–0,30 МПа, l = 71–101 мм, h = 110–134 мкм.

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45

Bauer, Sondes, Berkin Nergis, Xiaowei Jin, Lukáš Horák, Reinhard Schneider, Václav Holý, Klaus Seemann, Tilo Baumbach e Sven Ulrich. "Relevance of Platinum Underlayer Crystal Quality for the Microstructure and Magnetic Properties of the Heterostructures YbFeO3/Pt/YSZ(111)". Nanomaterials 14, n. 12 (17 giugno 2024): 1041. http://dx.doi.org/10.3390/nano14121041.

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Abstract (sommario):

The hexagonal ferrite h-YbFeO3 grown on YSZ(111) by pulsed laser deposition is foreseen as a promising single multiferroic candidate where ferroelectricity and antiferromagnetism coexist for future applications at low temperatures. We studied in detail the microstructure as well as the temperature dependence of the magnetic properties of the devices by comparing the heterostructures grown directly on YSZ(111) (i.e., YbPt_Th0nm) with h-YbFeO3 films deposited on substrates buffered with platinum Pt/YSZ(111) and in dependence on the Pt underlayer film thickness (i.e., YbPt_Th10nm, YbPt_Th40nm, YbPt_Th55nm, and YbPt_Th70nm). The goal was to deeply understand the importance of the crystal quality and morphology of the Pt underlayer for the h-YbFeO3 layer crystal quality, surface morphology, and the resulting physical properties. We demonstrate the relevance of homogeneity, continuity, and hillock formation of the Pt layer for the h-YbFeO3 microstructure in terms of crystal structure, mosaicity, grain boundaries, and defect distribution. The findings of transmission electron microscopy and X-ray diffraction reciprocal space mapping characterization enable us to conclude that an optimum film thickness for the Pt bottom electrode is ThPt = 70 nm, which improves the crystal quality of h-YbFeO3 films grown on Pt-buffered YSZ(111) in comparison with h-YbFeO3 films grown on YSZ(111) (i.e., YbPt_Th0nm). The latter shows a disturbance in the crystal structure, in the up-and-down atomic arrangement of the ferroelectric domains, as well as in the Yb–Fe exchange interactions. Therefore, an enhancement in the remanent and in the total magnetization was obtained at low temperatures below 50 K for h-YbFeO3 films deposited on Pt-buffered substrates Pt/YSZ(111) when the Pt underlayer reached ThPt= 70 nm.

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46

Busse, Harald, Michael R. Voss, Dmitri Jerdev, Bruce E. Koel e Mark T. Paffett. "Adsorption and reaction of gaseous H(D) atoms with D(H) adatoms on Pt(111) and Sn/Pt(111) surface alloys". Surface Science 490, n. 1-2 (settembre 2001): 133–43. http://dx.doi.org/10.1016/s0039-6028(01)01323-1.

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47

Li, Yu-Jin, King-Ning Tu e Chih Chen. "Tensile Properties and Thermal Stability of Unidirectionally <111>-Oriented Nanotwinned and <110>-Oriented Microtwinned Copper". Materials 13, n. 5 (8 marzo 2020): 1211. http://dx.doi.org/10.3390/ma13051211.

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Abstract (sommario):

Tensile tests on two kinds of electroplated copper foils with twins before and after annealing were performed. One electroplating parameter results in a microstructure of <110>-oriented microtwinned Cu (mt-Cu), and the other is <111>-oriented nanotwinned Cu (nt-Cu). The latter shows higher thermal stability than the former after annealing. Though the toughness for the two as-plated foils are quite close, the toughness for the <111> oriented nt-Cu increased from 34 to 74 MJ/m3 after annealing at 250 °C for 3 h. In comparison, the toughness of the <110>-oriented mt-Cu remained almost the same after annealing.

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48

Schaal, Maximilian, Takumi Aihara, Marco Gruenewald, Felix Otto, Jari Domke, Roman Forker, Hiroyuki Yoshida e Torsten Fritz. "Hybridization vs decoupling: influence of an h-BN interlayer on the physical properties of a lander-type molecule on Ni(111)". Beilstein Journal of Nanotechnology 11 (4 agosto 2020): 1168–77. http://dx.doi.org/10.3762/bjnano.11.101.

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Abstract (sommario):

2D materials such as hexagonal boron nitride (h-BN) are widely used to decouple organic molecules from metal substrates. Nevertheless, there are also indications in the literature for a significant hybridization, which results in a perturbation of the intrinsic molecular properties. In this work we study the electronic and optical properties as well as the lateral structure of tetraphenyldibenzoperiflanthene (DBP) on Ni(111) with and without an atomically thin h-BN interlayer to investigate its possible decoupling effect. To this end, we use in situ differential reflectance spectroscopy as an established method to distinguish between hybridized and decoupled molecules. By inserting an h-BN interlayer we fabricate a buried interface and show that the DBP molecules are well decoupled from the Ni(111) surface. Furthermore, a highly ordered DBP monolayer is obtained on h-BN/Ni(111) by depositing the molecules at a substrate temperature of 170 °C. The structural results are obtained by quantitative low-energy electron diffraction and low-temperature scanning tunneling microscopy. Finally, the investigation of the valence band structure by ultraviolet photoelectron spectroscopy shows that the low work function of h-BN/Ni(111) further decreases after the DBP deposition. For this reason, the h-BN-passivated Ni(111) surface may serve as potential n-type contact for future molecular electronic devices.

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49

Kobashi, Koji, Kozo Nishimura, Koichi Miyata, Kazuo Kumagai e Akimitsu Nakaue. "(110)-oriented diamond films synthesized by microwave chemical-vapor deposition". Journal of Materials Research 5, n. 11 (novembre 1990): 2469–82. http://dx.doi.org/10.1557/jmr.1990.2469.

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Abstract (sommario):

Bilayer diamond films were deposited on Si substrates by microwave-plasma chemical-vapor deposition (CVD) using a methane-hydrogen gas mixture. The first layer was deposited for 3 h using a reaction gas which was composed of 2.5 vol. % methane and 97.5 vol.% hydrogen. The deposited film consisted of very weakly (110)-oriented microcrystalline diamonds as well as amorphous carbon and graphite. In order to remove non-diamond carbons from the film surface, the specimen was treated in hydrogen plasma for 1 h. Finally, a second layer was deposited on the first layer for 14 h using a methane concentration of between 0.2 and 1.6 vol.%. It was found that the x-ray intensity of the (220) diffraction of the bilayer films was much greater than that of the (111) diffraction, indicating that the diamond grains in the second layer were strongly oriented with their crystallographic (110) planes parallel to the substrate surface. X-ray diffraction spectra of bilayer films in which the second layer was deposited for 7, 14, 21, and 35 h using two different methane concentrations, 0.3 and 1.2 vol.%, showed that within periods of up to 21 h, the (220) intensity increased with the deposition time much more quickly than the (111) intensity, indicating that the degree of (110) orientation was further enhanced as the second layer thickness increased. However, the (220) intensity decreased after 21 h, presumably due to thermal randomization. Results of scanning electron microscopy, electron diffraction, and Raman spectroscopy of the bilayer films are also presented.

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50

Korhonen, Hannu, e Paavo Niemelä. "Seasonal and circadian changes in activity rates of adult farm blue foxes". Agricultural and Food Science 7, n. 1 (1 gennaio 1998): 21–29. http://dx.doi.org/10.23986/afsci.72852.

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Abstract (sommario):

The present paper reports systematic activity rates obtained from year-round video recordings of farmbred blue foxes (Alopex lagopus) housed singly in conventional wire-mesh cages (107 cm wide x 110 long x 70 cm high). Subjects were 9 males and 13 females. Mean whole-year activity rates were slightly higher in males (394 ± 116 min/24 h; mean ± SD) than females (349 ± 111 min/24 h). Significant (P

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