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Artykuły w czasopismach na temat „U.S. WAF Band”

Autor: Grafiati

Data publikacji: 27 lipca 2024

Data aktualizacji: 31 lipca 2025

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1

Bişgin, Mustafa Cemil. "Almost convergent sequence spaces derived by the domain of quadruple band matrix." Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica 19, no. 1 (2020): 155–70. http://dx.doi.org/10.2478/aupcsm-2020-0012.

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AbstractIn this work, we construct the sequence spaces f(Q(r, s, t, u)), f0(Q(r, s, t, u)) and fs(Q(r, s, t, u)), where Q(r, s, t, u) is quadruple band matrix which generalizes the matrices Δ3, B(r, s, t), Δ2, B(r, s) and Δ, where Δ3, B(r, s, t), Δ2, B(r, s) and Δ are called third order difference, triple band, second order difference, double band and difference matrix, respectively. Also, we prove that these spaces are BK-spaces and are linearly isomorphic to the sequence spaces f, f0 and fs, respectively. Moreover, we give the Schauder basis and β, γ-duals of those spaces. Lastly, we charact

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Huang, Ching-Yuang, Cher-Wei Chou, Shu-Hua Chen, and Jia-Hong Xie. "Topographic Rainfall of Tropical Cyclones past a Mountain Range as Categorized by Idealized Simulations." Weather and Forecasting 35, no. 1 (2019): 25–49. http://dx.doi.org/10.1175/waf-d-19-0120.1.

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Abstract Topographic rainfall induced by westbound tropical cyclones past an island mountain is investigated using an idealized Weather Research and Forecasting (WRF) Model. Idealized simulations with varying vortex core size R (100–250 km), vortex intensity Vmax (20–35 m s−1), and steering wind speed U (4–10 m s−1) are conducted. The results show that the geometric distributions of major rainfall over the island are not greatly sensitive to cloud microphysics schemes using either single momentum or double momentum. Major rainfall is produced over northeastern and southwestern slopes of the mo

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He, Guangxin, Gang Li, Xiaolei Zou, and Peter Sawin Ray. "Applications of a Velocity Dealiasing Scheme to Data from the China New Generation Weather Radar System (CINRAD)." Weather and Forecasting 27, no. 1 (2012): 218–30. http://dx.doi.org/10.1175/waf-d-11-00054.1.

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Abstract An improved velocity dealiasing algorithm is developed as an extension of the Next Generation Weather Radar (NEXRAD) dealiasing algorithm. The algorithm described in this paper is evaluated on selected China Next Generation Weather Radar (CINRAD) S-band radar radial velocity observations. This algorithm includes four modules for removing weak signals and determining the starting radial as a prelude to identifying and correcting aliased velocities. The proposed dealiasing algorithm was tested on 14 different weather systems, composed of typhoons, squall lines, and heavy rains. The resu

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4

Oun, Ameer Ghani Abd, and Mohammed Hamza Abass. "New Report of Stemphylium vesicarium (Wallr.) Simmons and Ulocladium alternariae (Cooke) Simmons as seed-borne fungi of wheat (Triticum aestivum L.) in Iraq." IOP Conference Series: Earth and Environmental Science 1262, no. 3 (2023): 032030. http://dx.doi.org/10.1088/1755-1315/1262/3/032030.

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Abstract The objective of the present study is to determine fungal species Stemphylium vesicarium and Ulocladium alternariae associated with seeds of five wheat cultivars called Wefia (WAF), Eba 99 (EBA), Adena (ADN), Bohooth (BTH) and Mahmoudia (MHD). Those fungi were identified by using morphological and microscopic features as well as molecular sequencing. Molecular identification was carried out relying on internal transcribed spacer primers (ITS1 and ITS4). This is a new report recording S. vesicarium and U. alternariae as seed-borne fungi of wheat seeds in Iraq.

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5

Mahale, Vivek N., Jerald A. Brotzge, and Howard B. Bluestein. "The Advantages of a Mixed-Band Radar Network for Severe Weather Operations: A Case Study of 13 May 2009." Weather and Forecasting 29, no. 1 (2014): 78–98. http://dx.doi.org/10.1175/waf-d-13-00024.1.

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Abstract Adding a mix of X- or C-band radars to the current Weather Surveillance Radar-1988 Doppler (WSR-88D) network could address several limitations of the network, including improvements to spatial gaps in low-level coverage and temporal sampling of volume scans. These limitations can result in missing critical information in highly dynamic events, such as tornadoes and severe straight-line wind episodes. To evaluate the potential value of a mixed-band radar network for severe weather operations, a case study is examined using data from X- and S-band radars. On 13 May 2009, a thunderstorm

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6

Moosa, Arwa A., and Raad Sami Fyath. "Toward Seven-Band Coherent WDM System Covering T to U Bands: Predictions of Transmission and BER Performance." Al-Nahrain Journal for Engineering Sciences 27, no. 1 (2024): 61–77. http://dx.doi.org/10.29194/njes.27010061.

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This paper discusses the development of a seven-band coherent wavelength-division multiplexing (WDM) system covering the T to U systems, aiming to enhance the capacity and system efficiency. Seven multiband systems (C+L, S+C+L, S+C+L+U, E+S+C+L, E+S+C+L+U, O+E+S+C+L+U, and T+O+E+S+C+L+U) are designed with 40 GBaud symbol rate, 50 GHz channel spacing, and dual-polarization (DP)-16QAM signaling. The analysis adopted the enhanced Gaussian noise model, considering the amplified spontaneous emission of inline optical amplifiers and nonlinear interference (NLI) from fiber nonlinear optics, including

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7

SCHMIDT, A. A., and J. J. RODRÍGUEZ-NÚÑEZ. "EFFECT OF LOCAL CORRELATIONS ON s-WAVE SYMMETRY SUPERCONDUCTIVITY." International Journal of Modern Physics C 11, no. 06 (2000): 1149–56. http://dx.doi.org/10.1142/s0129183100000924.

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We derive superconducting mean-field equations for an attractive interaction V in the s-wave channel when local Coulomb interactions are taken into account for any value of U. Results show that Coulomb repulsion diminishes the critical temperature Tc to the order parameter Δ(T) for values of U ≥ |V|. Furthermore, the results are also quite sensible to band filling. In the presence of local correlations, 2Δ(0)/Tc differs from the BCS ratio since Coulomb interactions affect much more superconducting critical temperature Tc than superconducting order parameter Δ(T). Some consequences of our findi

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8

Zeng, W., and R. Shen. "Andreev reflection of massive pseudospin-1 fermions." New Journal of Physics 24, no. 4 (2022): 043021. http://dx.doi.org/10.1088/1367-2630/ac614e.

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Abstract We theoretically investigate the Andreev reflection of the massive pseudospin-1 Dirac fermions including the +U-type, the −U-type, and the S z -type mass terms, corresponding to the flat band locating at the top, the bottom, and the center of the band gap, respectively. For the ±U-type fermions, it is found that the Andreev reflection probability at the oblique incidence can be even larger than that at the normal incidence. For the retro-reflection, such an oblique enhancement occurs in the n-doped +U-type (p-doped −U-type) massive fermion systems. While for the specular reflection, t

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9

Tai, Sai-Choi, Edwin Wing-Lui Ginn, and Chiu-Ying Lam. "Dual-Doppler Observations of Severe Tropical Storm Maggie 1999." Weather and Forecasting 20, no. 1 (2005): 112–23. http://dx.doi.org/10.1175/waf-828.1.

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Abstract Severe Tropical Storm Maggie crossed Hong Kong, China, in June 1999. The dual-Doppler winds of Maggie captured by the Hong Kong Observatory's (HKO) S-band Doppler weather radar array were studied. The tracks of Maggie's vorticity centers at 1–3-km levels were analyzed and compared with that at the surface as determined from the wind observations of automatic weather stations. The results indicated that the storm had a vertical tilt toward the west to northwest during the transit over Hong Kong. The tracks also deviated significantly from the deep-layer environmental steering flow. The

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10

Li, Mengmeng, Jiangling Dou, and Tao Shen. "Miniaturization of S-band circularly polarized microstrip antenna." E3S Web of Conferences 360 (2022): 01065. http://dx.doi.org/10.1051/e3sconf/202236001065.

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A S-band miniaturized circularly polarized microstrip antenna is designed and fabricated. The curved current technique is utilized, and the effective path length of current is increased by loading the U-shaped slot on the radiating patch. Thus the antenna resonant frequency can be tuned and the antenna can be significantly miniaturized. The experimental samples of the antenna are fabricated and tested. The measured results show that the two resonant frequencies of the miniaturized S-band circularly polarized microstrip antenna are 2.17GHz and 2.25GHz, with an impedance bandwidth (S11 <−10 d

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Grünenwald, Elisabeth, and Gertrud Fiege. "Rezension von: Fiege, Gertrud (Hrsg.), Bildnisse." Württembergisch Franken 69 (January 19, 2024): 314. http://dx.doi.org/10.53458/wfr.v69i.9708.

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Bildnisse. Verzeichnis der Plastiken, Gemälde, Handzeichnungen, Scherenschnitte im Schiller-Nationalmuseum und Deutschen Literaturarchiv Marbach. In Zusammenarb. mit Albrecht Bergold von Gertrud Fiege. Band 1: A-L. Band 2: M-Z. (= Deutsches Literaturarchiv. Verzeichnisse, Berichte, Informationen, 3 u. 4). Marbach: Deutsche Schillergesellschaft 1978. 103, 116 S.

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12

Bukuya, Melinda, Teresa Martinelli, Joanne Tzouroutis, et al. "A Comparative Multi-laboratory Assessment of Three Factor VIII/von Willebrand Factor Concentrates." Thrombosis and Haemostasis 87, no. 03 (2002): 466–76. http://dx.doi.org/10.1055/s-0037-1613027.

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SummaryFive expert laboratories have participated in a cross-laboratory study to co-evaluate and compare three commercial Factor VIII/von Willebrand factor (VWF) concentrates. A total of nine factor concentrate lots were evaluated, comprising AHF (High Purity) (AHF HP; X3), Biostate® (X3) and Humate/Haemate (X3). All laboratories blind tested for FVIII:C, VWF:Ag and VWF:CB, four tested for VWF:RCo, and one performed VWF:Multimers. The study yielded inter-laboratory CVs for VWF:Ag and FVIII:C around 10–15%, and for VWF:CB and VWF:RCo around 20%, significantly lower than those of previous multi-

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13

Tuğ, Orhan, Vladimir Rakočević, and Eberhard Malkowsky. "On the Domain of the Four-Dimensional Sequential Band Matrix in Some Double Sequence Spaces." Mathematics 8, no. 5 (2020): 789. http://dx.doi.org/10.3390/math8050789.

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Let E represent any of the spaces M u , C ϑ ( ϑ = { b , b p , r } ) , and L q ( 0 < q < ∞ ) of bounded, ϑ -convergent, and q-absolutely summable double sequences, respectively, and E ˜ be the domain of the four-dimensional (4D) infinite sequential band matrix B ( r ˜ , s ˜ , t ˜ , u ˜ ) in the double sequence space E, where r ˜ = ( r m ) m = 0 ∞ , s ˜ = ( s m ) m = 0 ∞ , t ˜ = ( t n ) n = 0 ∞ , and u ˜ = ( u n ) n = 0 ∞ are given sequences of real numbers in the set c ∖ c 0 . In this paper, we investigate the double sequence spaces E ˜ . First, we determine some topological properties an

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14

Amiot, Corey G., Lawrence D. Carey, William P. Roeder, Todd M. McNamara, and Richard J. Blakeslee. "C-band Dual-Polarization Radar Signatures of Wet Downbursts around Cape Canaveral, Florida." Weather and Forecasting 34, no. 1 (2019): 103–31. http://dx.doi.org/10.1175/waf-d-18-0081.1.

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Abstract Wind warnings are the second-most-frequent advisory issued by the U.S. Air Force’s 45th Weather Squadron (45WS) at Cape Canaveral, Florida. Given the challenges associated with nowcasting convection in Florida during the warm season, improvements in 45WS warnings for convective wind events are desired. This study aims to explore the physical bases of dual-polarization radar signatures within wet downbursts around Cape Canaveral and identify signatures that may assist the 45WS during real-time convective wind nowcasting. Data from the 45WS’s C-band dual-polarization radar were subjecti

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15

Belhachi, S. "Electronic Structure for Europium Chalcogenides with Modified Becke–Johnson Potential Plus an On-Site Coulomb U (mBJ+U)." SPIN 08, no. 04 (2018): 1850015. http://dx.doi.org/10.1142/s2010324718500157.

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The full potential linearized-augmented-plane-wave (FP-LAPW) method is generalized to a case of an all-electron fully-relativistic spin-polarized self-consistent band calculation based on the relativistic spin-density functional theory and the modified Becke–Johnson potential (TB-mBJ) plus an on-site coulomb U employed for greater generation of the band gap. The results show that these materials are semiconducting materials. The indirect energy gap obtained in this calculation is 1.63[Formula: see text]eV, 1.79[Formula: see text]eV and 1.96[Formula: see text]eV for EuS, EuSe and EuTe, respecti

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16

Nigam, Padmini, Arjuna Muduli, Sandeep Sharma, and Amrindra Pal. "Self-quadplexing slot antenna for S and C-band applications." Computer Science and Information Technologies 3, no. 2 (2022): 74–81. http://dx.doi.org/10.11591/csit.v3i2.p74-81.

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This paper demonstrates a novel kind of cavity-backed self-quadplexing slot antenna for the S and C-band applications. The proposed antenna consists of 4 distinct “U”-shaped slots of different lengths and produces the quad frequency band for wireless communication systems. These slots are excited through the separate and orthogonal placed microstrip feed lines of 50 Ω; generates four distinct operating bands at 3.2 GHz, 4.1 GHz, 5.8 GHz, and 7.2 GHz. Due to the perturbation of different U-shaped slots over the substrate integrated waveguide (SIW) cavity with defined positions, the high intrins

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Padmini Nigam, Arjuna Muduli, Sandeep Sharma, and Amrindra Pal. "Self-quadplexing slot antenna for S and C-band applications." Computer Science and Information Technologies 3, no. 2 (2022): 74–81. http://dx.doi.org/10.11591/csit.v3i2.pp74-81.

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This paper demonstrates a novel kind of cavity-backed self-quadplexing slot antenna for the S and C-band applications. The proposed antenna consists of 4 distinct “U”-shaped slots of different lengths and produces the quad frequency band for wireless communication systems. These slots are excited through the separate and orthogonal placed microstrip feed lines of 50 Ω; generates four distinct operating bands at 3.2 GHz, 4.1 GHz, 5.8 GHz, and 7.2 GHz. Due to the perturbation of different U-shaped slots over the substrate integrated waveguide (SIW) cavity with defined positions, the high intrins

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Padmini, Nigam, Muduli Arjuna, Sharma Sandeep, and Pal Amrindra. "Self-quadplexing slot antenna for S and C-band applications." Computer Science and Information Technologies 3, no. 2 (2023): 74–81. https://doi.org/10.11591/csit.v3i2.pp74-81.

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This paper demonstrates a novel kind of cavity-backed self-quadplexing slot antenna for the S and C-band applications. The proposed antenna consists of 4 distinct “U”-shaped slots of different lengths and produces the quad frequency band for wireless communication systems. These slots are excited through the separate and orthogonal placed microstrip feed lines of 50 Ω; generates four distinct operating bands at 3.2 GHz, 4.1 GHz, 5.8 GHz, and 7.2 GHz. Due to the perturbation of different U-shaped slots over the substrate integrated waveguide (SIW) cavity with defined positions

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SK Nathan, B Singh, and TC Thakur. "Laboratory studies on performance of positive feed metering devices for band placement of fertilizers." Journal of Agricultural Engineering (India) 37, no. 02 (2000): 1–14. http://dx.doi.org/10.52151/jae2000372.0922.

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The effect of shape, number of grooves and speed of fluted roller metering device was studied on metering characteristics of urea for intermittent and continuous band placements. For intermittent band placement, 6 groove rollers of U-shape, J-shape and eccentric-circular shape were used whereas 12 groove rollers of U-shape and eccentric circular shape were selected for continuous band placement. The principle of two stage metering of fertilizer was employed using a star type agitator running ~t a constant speed of 0.26 m/s and a fixed circular opening of 13.5 mm diameter in the hopper at the f

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Ulshöfer, Kuno, and Rolf Wilhelm Brednich. "Rezension von: Brednich, Rolf Wilhelm (Hrsg.), Die Ebermannstädter Liederhandschrif." Württembergisch Franken 59 (April 24, 2024): 96. http://dx.doi.org/10.53458/wfr.v59i.11429.

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Die Ebermannstädter Liederhandschrift, geschrieben um 1750 von Frantz Melchior Freytag, Schulrektor zu Ebermannstadt. Hrsg. u. komm, von Rolf Wilh. Brednich und Wolfgang Suppan (= Die Plassenburg Band 31). Kulmbach 1972, 264 S.

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Ansal, K.A*1 Dana Mariam Jacob*2 Mithu Mariam Cherian2 Reshma V.R2 &. Roshni K. Rajan2. "CPW FED U SHAPED LOOP MONOPOLE ANTENNA FOR DUAL BAND APPLICATION." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY NACETEC' 19 (April 6, 2019): 43–48. https://doi.org/10.5281/zenodo.2631573.

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A novel coplanar waveguide fed dualband antenna for wireless application is discussed in the paper. Primary focus is on the 2.45GHz and 5.2GHz WLAN band. The presented configuration has 25 x 35.5mm dimensions with U shaped loop radiation structure and a capacitivelycoupled ground plane. The proposed design mainly focusses on FR-4 Epoxy as the substrate. Other materials like RT Duroid and zelt was used for performance comparison. For FR-4 Epoxy, the first band was obtained at 2.45GHz and a second band was obtained at 3.8 to 5.9 GHz. The return loss obtained for the first band is -18 and the sec

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22

Shen, Quan, Li Fan Shen, Hai Lin, and Chang Min Li. "Tm³⁺-doped Bismuth Tellurite Glasses for S- and U-band Optical Amplifiers." Advanced Materials Research 239-242 (May 2011): 3078–81. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.3078.

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Effective ~1.47mm and powerful ~1.8mm infrared emissions have been observed in Tm3+-doped bismuth tellurite glasses with low phonon energy under the excitation of 793nm diode laser. Judd-Ofelt parameters W2 (4.65´10-20cm2), W4 (1.15´10-20cm2), and W6 (1.16´10-20cm2) indicate a higher asymmetric and stronger covalent environment in the optical glasses. In 0.5wt% Tm3+-doped sample, the peak emission cross-sections of 3H4®3F4 and 3F4®3H6 transitions are derived to be 2.83´10-21 and 6.13´10-21cm2, respectively, and the maximum gain coefficients of 0.38 and 2.21dB/cm at 1.675 (U-band edge) and 1.85

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Shirvani, Fatemeh, Mohammad Reza Jafari, and Aliasghar Shokri. "Investigating the layered structure of HfNBr and HfNCl_0.5Br_0.5: A DFT+U approach to optoelectronic and thermoelectric application." Physica Scripta 100, no. 3 (2025): 035984. https://doi.org/10.1088/1402-4896/adb6da.

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Abstract Layered materials have attracted considerable attention due to their distinctive properties. In this study, the optoelectronic and thermoelectric characteristics of HfNBr and its alloy with Cl, where Br atoms are partially replaced, were investigated using density functional theory (DFT), while incorporating the Hubbard correction (U) in the calculations. The structural and dynamic stability of these compounds was confirmed through cohesive energy and phonon results analysis. The electronic density of states (DOS) revealed semiconducting band gaps of 2.275 eV (using the GGA method) an

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Huang, CH, K. Johe, JJ Moulds, PD Siebert, M. Fukuda, and OO Blumenfeld. "Delta glycophorin (glycophorin B) gene deletion in two individuals homozygous for the S--s--U-- blood group phenotype." Blood 70, no. 6 (1987): 1830–35. http://dx.doi.org/10.1182/blood.v70.6.1830.1830.

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Abstract Blood cells from two unrelated individuals whose erythrocytes exhibit respectively N S-s-U- and MN S-s-U- blood group phenotypes were examined by immunoblotting, periodic acid-Schiff (PAS) staining, and Southern blotting. Protein bands characteristic of delta glycophorin (glycophorin B) were absent from the immunoblots of whole erythrocyte lysates when probed with polyclonal glycophorin antisera and from isolated erythrocyte membranes stained with PAS reagents. Genomic DNA from the two individuals' leukocytes was digested with a panel of restriction enzymes and probed with alpha M gly

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Huang, CH, K. Johe, JJ Moulds, PD Siebert, M. Fukuda, and OO Blumenfeld. "Delta glycophorin (glycophorin B) gene deletion in two individuals homozygous for the S--s--U-- blood group phenotype." Blood 70, no. 6 (1987): 1830–35. http://dx.doi.org/10.1182/blood.v70.6.1830.bloodjournal7061830.

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Blood cells from two unrelated individuals whose erythrocytes exhibit respectively N S-s-U- and MN S-s-U- blood group phenotypes were examined by immunoblotting, periodic acid-Schiff (PAS) staining, and Southern blotting. Protein bands characteristic of delta glycophorin (glycophorin B) were absent from the immunoblots of whole erythrocyte lysates when probed with polyclonal glycophorin antisera and from isolated erythrocyte membranes stained with PAS reagents. Genomic DNA from the two individuals' leukocytes was digested with a panel of restriction enzymes and probed with alpha M glycophorin

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Gu, Qiangqiang, Shuqiu Wang, Joseph P. Carroll, et al. "Pair wave function symmetry in UTe ₂ from zero-energy surface state visualization." Science 388, no. 6750 (2025): 938–44. https://doi.org/10.1126/science.adk7219.

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Although nodal spin-triplet topological superconductivity appears probable in uranium ditelluride (UTe 2 ), its superconductive order parameter Δ k remains unestablished. In theory, a distinctive identifier would be the existence of a superconductive topological surface band, which could facilitate zero-energy Andreev tunneling to an s-wave superconductor and also distinguish a chiral from a nonchiral Δ k through enhanced s-wave proximity. In this study, we used s-wave superconductive scan tips and detected intense zero-energy Andreev conductance at the UTe 2 (0-11) termination surface. Imagin

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DURNA, Nuh, and Rabia KILIÇ. "On the spectrum of the upper triangular double band matrix $U(a_{0},a_{1},a_{2};b_{0},b_{1},b_{2})$ over the sequence $c$." Communications Faculty Of Science University of Ankara Series A1Mathematics and Statistics 71, no. 2 (2022): 554–65. http://dx.doi.org/10.31801/cfsuasmas.977593.

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The upper triangular double band matrix $U(a_{0},a_{1},a_{2};b_{0},b_{1},b_{2})$ is defined on a Banach sequence space by $U(a_{0},a_{1},a_{2};b_{0},b_{1},b_{2})(x_{n})=(a_{n}x_{n}+b_{n}x_{n+1})_{n=0}^{\infty}$where $a_{x}=a_{y},~b_{x}=b_{y}$ for $x\equiv y~(mod3)$. The class of the operator$U(a_{0},a_{1},a_{2};b_{0},b_{1},b_{2})$includes, in particular, the operator $U(r,s)$ when $a_{k}=r$ and $b_{k}=s$ for all $k\in\mathbb{N}$, with $r,s\in\mathbb{R}$ and $s\neq 0$. Also, it includes the upper difference operator; $a_{k}=1$ and $b_{k}=-1$ for all $k\in\mathbb{N}$. In this paper, we completel

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Grünenwald, Elisabeth, and Bernhard Schemmel. "Rezension von: Schemmel, Bernahrd, Figuren und Reliefs an Haus und Hof in Franken." Württembergisch Franken 65 (February 28, 2024): 296. http://dx.doi.org/10.53458/wfr.v65i.10627.

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Bernhard Schemmel: Figuren und Reliefs an Haus und Hof in Franken. Quellen und Forschungen zur Geschichte des Bistums und Hochstifts Würzburg. Band 31. Hg. von Th. Kramer u. K. Wittstadt. Würzburg: Schöningh 1978. 68 S., 334 Abb.

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Heinselman, Pamela L., Daphne S. LaDue, and Heather Lazrus. "Exploring Impacts of Rapid-Scan Radar Data on NWS Warning Decisions." Weather and Forecasting 27, no. 4 (2012): 1031–44. http://dx.doi.org/10.1175/waf-d-11-00145.1.

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Abstract Rapid-scan weather radars, such as the S-band phased array radar at the National Weather Radar Testbed in Norman, Oklahoma, improve precision in the depiction of severe storm processes. To explore potential impacts of such data on forecaster warning decision making, 12 National Weather Service forecasters participated in a preliminary study with two control conditions: 1) when radar scan time was similar to volume coverage pattern 12 (4.5 min) and 2) when radar scan time was faster (43 s). Under these control conditions, forecasters were paired and worked a tropical tornadic supercell

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Sato, K., K. Hirata, S. Singh, et al. "Electronic structure of silver chalcogenides investigated by hard x-ray photoemission spectroscopy and density functional theory calculations." Journal of Applied Physics 132, no. 4 (2022): 045104. http://dx.doi.org/10.1063/5.0095987.

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We have investigated the electronic structure of silver chalcogenides Ag2 X ( X = S, Se, Te) and their solid solutions using hard x-ray photoemission spectroscopy in combination with density functional theory calculations using generalized gradient approximation (GGA). By including the corrections for on-site Coulomb interactions (GGA + U), we successfully reproduced the valence band photoemission spectra, which consist mainly of the Ag 4 d band, by calculation. The estimated values for U = 4–6 eV are slightly high for Ag 4 d electrons but are consistent with those used in previously reported

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LUPSA, ILEANA, and MIHAELA VALEANU. "HYBRIDIZATION EFFECTS IN SOME UTSi (2:1:3; 1:1:1; 2:3:1) COMPOUNDS." Modern Physics Letters B 17, no. 24 (2003): 1277–82. http://dx.doi.org/10.1142/s0217984903006311.

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The presence of magnetic moments in uranium atoms in some of U 2 TSi 3, UTSi and U 2 T 3 Si ( T is a 3d, 4d or 5d transition element) compounds is discussed in terms of the hybridization of s, p, d and f atomic orbitals. The hybridization strength in these ternary series of isostructural compounds was calculated using the semiquantitative band structure approach of Straub and Harrison. The prediction criterion for the presence of magnetic ordering, comparing the band width with a critical energy, seems to hold. The dominant influence of fd hybridization effects in the change of magnetic proper

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Chen, Jiaqi, Zhaofu Zhang, Yuzheng Guo, and John Robertson. "Electronic properties of CaF₂ bulk and interfaces." Journal of Applied Physics 131, no. 21 (2022): 215302. http://dx.doi.org/10.1063/5.0087914.

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The electronic band structures of ultra-wide gap CaF2 are investigated with both the hybrid functional and the efficient generalized gradient approximation (GGA) + U scheme. The hybrid functional scheme is in excellent agreement with experiments, while introducing an on-site Coulomb interaction to F-2p orbitals also accurately reproduces the experimental bandgap and greatly improves the previous theoretical results using advanced electronic structure schemes. We also apply the GGA + U method to study CaF2/Si and metal/CaF2 interfaces. The CaF2/Si insulating interfaces with a clear bandgap are

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Iqbal, Amjad, Amor Smida, Nazih Mallat, Mohammad Islam, and Sunghwan Kim. "A Compact UWB Antenna with Independently Controllable Notch Bands." Sensors 19, no. 6 (2019): 1411. http://dx.doi.org/10.3390/s19061411.

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A minimally-sized, triple-notched band ultra-wideband (UWB) antenna, useful for many applications, is designed, analyzed, and experimentally validated in this paper. A modified maple leaf-shaped main radiating element with partial ground is used in the proposed design. An E-shaped resonator, meandered slot, and U-shaped slot are implemented in the proposed design to block the co-existing bands. The E-shaped resonator stops frequencies ranging from 1.8–2.3 GHz (Advanced Wireless System (AWS1–AWS2) band), while the meandered slot blocks frequencies from 3.2–3.8 GHz (WiMAX band). The co-existing

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Fritz, Gerhard, and Ursula Krause-Schmitt. "Rezension von: Krause-Schmitt, Ursula, Baden-Württemberg." Backnanger Jahrbuch 2 (December 22, 2023): 154–55. http://dx.doi.org/10.53458/bjb.v2i.8758.

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Heimatgeschichtliche Wegweiser zu Stätten des Widerstandes und der Verfolgung 1933 - 1945. Band 5: Baden-Württemberg 1. Regierungsbezirke Karlsruhe und Stuttgart. Hrsg. v. Studienkreis Deutscher Widerstand. Redaktion Ursula Krause-Schmitt u. a. Frankfur/M.: Verlag für akademische Schriften 1991. 330 S.

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Kuster, Charles M., Pamela L. Heinselman, and Marcus Austin. "31 May 2013 El Reno Tornadoes: Advantages of Rapid-Scan Phased-Array Radar Data from a Warning Forecaster’s Perspective*." Weather and Forecasting 30, no. 4 (2015): 933–56. http://dx.doi.org/10.1175/waf-d-14-00142.1.

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Abstract On 31 May 2013, a supercell produced a tornado rated as 3 on the enhanced Fujita scale (EF3) near El Reno, Oklahoma, which was sampled by the S-band phased-array radar (PAR) at the National Weather Radar Testbed in Norman, Oklahoma. Collaboration with the forecaster who issued tornado warnings for the El Reno supercell during real-time operations focused the analysis on critical radar signatures frequently assessed during warning operations. The wealth of real-world experience provided by the forecaster, along with the quantitative analysis, highlighted differences between rapid-scan

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Qin, Tao, Chenlu Huang, Yang Cai, and Xianqi Lin. "Dual-Band Frequency Selective Surface with Different Polarization Selectivity for Wireless Communication Application." Sensors 23, no. 9 (2023): 4264. http://dx.doi.org/10.3390/s23094264.

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This article proposes a dual-band, frequency- and polarization-selective surface. Multiple resonant modes are introduced using the U-shaped resonator with a ground via to achieve dual-band responses and polarization selectivity. Two symmetrically grounded U-shaped resonators are coupled through electrically coupled apertures in a common ground, resulting in a passband with two transmission zeros per polarization. A general design flowchart and additional examples at the S, X, and K-bands are presented as well. A prototype at X-band is analyzed, fabricated, and measured, showing the passband ce

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Carretti, E., M. Haverkorn, L. Staveley-Smith, et al. "S-band Polarization All-Sky Survey (S-PASS): survey description and maps." Monthly Notices of the Royal Astronomical Society 489, no. 2 (2019): 2330–54. http://dx.doi.org/10.1093/mnras/stz806.

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Abstract We present the S-Band Polarization All Sky Survey (S-PASS), a survey of polarized radio emission over the southern sky at Dec. &lt;−1° taken with the Parkes radio telescope at 2.3 GHz. The main aim was to observe at a frequency high enough to avoid strong depolarization at intermediate Galactic latitudes (still present at 1.4 GHz) to study Galactic magnetism, but low enough to retain ample signal-to-noise ratio (S/N) at high latitudes for extragalactic and cosmological science. We developed a new scanning strategy based on long azimuth scans and a corresponding map-making procedur

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PIACENZA, L., R. RADI, F. GOÑI, and C. CARMONA. "CuZn superoxide dismutase activities from Fasciola hepatica." Parasitology 117, no. 6 (1998): 555–62. http://dx.doi.org/10.1017/s0031182098003394.

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The levels of superoxide dismutase (SOD) were determined in detergent-soluble, somatic and excretion–secretion (E–S) preparations from adult Fasciola hepatica using the xanthine oxidase system and visualized in substrate gels. Compared to detergent-soluble and somatic extracts, E–S products showed the highest SOD activity (88 ·5 U/mg), indicating active release to the medium in which parasites were maintained. SOD specific activity was also detected at high levels in E–S products from 3-week-old and 5-week-old immature migrating flukes (25 and 143 U/mg, respectively). In all preparations excep

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Zhou, Shi Wen, Jian Liu, Ping Peng, and Wen Qin Chen. "Effects of S/Ce-codoping on electronic structures and optical properties of anatase TiO2 from density functional theory calculations." Modern Physics Letters B 29, no. 35n36 (2015): 1550249. http://dx.doi.org/10.1142/s0217984915502498.

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The electronic and optical properties of S- and/or Ce-(co)doped anatase titanium dioxide (TiO2) are investigated using density functional theory plus U (DFT[Formula: see text]U) calculations. The optimized total energy suggests that TiO2 codoping by Ce and S favours the configuration of one substitutional Ce atom occupied on a Ti site with one substitutional S atom either on its nearest neighboring O or Ti site. The calculated results show that all doping configurations exhibit remarkable red-shift and excellent photocatalytic properties compared with pure TiO2. These reinforced features can m

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40

Voit, Thomas, Birgit Kulessa, and Christoph Bittel. "Rezension von: Kulessa, Birgit; Bittel, Christoph, Bad Mergentheim." Württembergisch Franken 105 (May 23, 2023): 257–58. http://dx.doi.org/10.53458/wfr.v105i.6407.

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Birgit Kulessa und Christoph Bittel: Bad Mergentheim – Archäologisches Stadtkataster Baden-Württemberg, Band 42, hg. vom Landesamt für Denkmalpflege im Regierungspräsidium Stuttgart in Verbindung mit der Stadt Bad Mergentheim. Filderstadt-Plattenhardt (F. u. T. Müllerbader) 2020. 368 S., zahlr. teils farbige Abb., 5 Beilagen als thematische Karten

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Ungar, Max D., and Michael C. Coniglio. "Using Radiosonde Observations to Assess the “Three Ingredients Method” to Forecast QLCS Mesovortices." Weather and Forecasting 38, no. 12 (2023): 2441–60. http://dx.doi.org/10.1175/waf-d-22-0176.1.

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Abstract A technique used widely to forecast the potential for QLCS mesovortices is known as the “Three Ingredients Method” (3IM). The 3IM states that mesovortices are favored where 1) the QLCS cold pool and ambient low-level shear are said to be nearly balanced or slightly shear dominant, 2) where the component of the 0–3-km wind shear normal to the convective line is ≥30 kt (1 kt ≈ 0.51 m s−1), and 3) where a rear-inflow jet or enhanced outflow causes a surge or bow along the convective line. Despite its widespread use in operational settings, this method has received little evaluation in fo

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Kalina, Evan A., Katja Friedrich, Brian C. Motta, Wiebke Deierling, Geoffrey T. Stano, and Nezette N. Rydell. "Colorado Plowable Hailstorms: Synoptic Weather, Radar, and Lightning Characteristics." Weather and Forecasting 31, no. 2 (2016): 663–93. http://dx.doi.org/10.1175/waf-d-15-0037.1.

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Abstract Synoptic weather, S-band dual-polarization radar, and total lightning observations are analyzed from four thunderstorms that produced “plowable” hail accumulations of 15–60 cm in localized areas of the Colorado Front Range. Results indicate that moist, relatively slow (5–15 m s−1) southwesterly-to-westerly flow at 500 hPa and postfrontal low-level upslope flow, with 2-m dewpoint temperatures of 11°–19°C at 1200 LST, were present on each plowable hail day. This pattern resulted in column-integrated precipitable water values that were 132%–184% of the monthly means and freezing-level he

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Ashall, C., J. Lu, B. J. Shappee, et al. "A Speed Bump: SN 2021aefx Shows that Doppler Shift Alone Can Explain Early Excess Blue Flux in Some Type Ia Supernovae." Astrophysical Journal Letters 932, no. 1 (2022): L2. http://dx.doi.org/10.3847/2041-8213/ac7235.

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Abstract We present early-time photometric and spectroscopic observations of the Type Ia supernova (SN Ia) 2021aefx. The early-time u-band light curve shows an excess flux when compared to normal SNe Ia. We suggest that the early excess blue flux may be due to a rapid change in spectral velocity in the first few days post explosion, produced by the emission of the Ca ii H&K feature passing from the u to the B bands on the timescale of a few days. This effect could be dominant for all SNe Ia that have broad absorption features and early-time velocities over 25,000 km s−1. It is likely to be

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Bruach, Agustí. "A[ntonio] De Cabezón: Ausgewählte Werke für Tasteninstrumente. Hrsg. von Gerhard Doderer und Miguel Bernal Ripoll. Urtext. Kassel u. a.: Bärenreiter Verlag 2010. Band 1· XXVIII 68 S., Band 11- XXVII, 78 S., Band IJL XXVII, 82 S., Band IV: XXVII, 88 S." Die Musikforschung 65, no. 1 (2024): 78–79. https://doi.org/10.52412/mf.2012.h1.3507.

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Filalli, Sihem, and Noura Hamdad. "Electro-Magnetic Behavior of Highly Correlated Fluorides KFeF3, KCoF3 and KNiF3: A Comparative Ab-initio Study of Cation Effect." Annals of West University of Timisoara - Physics 62, no. 1 (2020): 23–51. http://dx.doi.org/10.2478/awutp-2020-0003.

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AbstractFluorides-based perovskites are currently the typical materials being used in spintronic devices, optoelectronic and magneto-resistance colossal fields. Solar cells made of Fluoro-perovskite hold much promise for the future of solar energy. The electronic structure and magnetic properties of KFeF3, KCoF3 and KNiF3 Fluorides are studied using ab initio Calculation. We have analysed the structural phases, total and partial electronic densities and band structures within the (DFT) vs the DFT+U description. We show the Electro-Magnetic Behavior using L(S)DA+U vs L(S)DA in a comparative stu

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Snyder, Jeffrey C., and Howard B. Bluestein. "Some Considerations for the Use of High-Resolution Mobile Radar Data in Tornado Intensity Determination." Weather and Forecasting 29, no. 4 (2014): 799–827. http://dx.doi.org/10.1175/waf-d-14-00026.1.

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Abstract The increasing number of mobile Doppler radars used in field campaigns across the central United States has led to an increasing number of high-resolution radar datasets of strong tornadoes. There are more than a few instances in which the radar-measured radial velocities substantially exceed the estimated wind speeds associated with the enhanced Fujita (EF) scale rating assigned to a particular tornado. It is imperative, however, to understand what the radar data represent if one wants to compare radar observations to damage-based EF-scale estimates. A violent tornado observed by the

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47

Zorah, Mohammed. "A DFT Study the Electronic, Optical and Thermal Properties of XTe (X= Pb, Cd, Nb) for optoelectronic device Applications." Technium BioChemMed 9 (August 1, 2024): 28–40. http://dx.doi.org/10.47577/biochemmed.v9i.11463.

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A First-principles based study to investigate the different properties of telluride (Te) based materials XTe (X= Pb, Cd, Nb) such as structural, electronic, optical, and thermal properties. The bandgap of XTe (X= Pb, Cd, Nb) was originate significantly decrement from 1.50 eV to 0.00 eV. Under the First-principles exploration Pb, Cd, and Nb are appropriate periodic elements for bandgap decrement in XTe materials. The bandgap nature was obtaining direct furthermore bandgap show that materials are proficient semiconductors. Niobium (Nb) is more advantageous than Pb and Cd. By substituting of X= P

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Limentani, Steven A., Kerry P. Gowell, and Steven R. Deitcher. "In Vitro Characterization of High Purity Factor IX Concentrates for the Treatment of Hemophilia B." Thrombosis and Haemostasis 73, no. 04 (1995): 584–91. http://dx.doi.org/10.1055/s-0038-1653825.

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SummaryThis study employed sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis and immunoblotting to assess the purity of seven high purity factor IX concentrates: Aimafix (Aima), AlphaNine-SD (Alpha Therapeutic), Factor IX VHP (Biotransfusion), Immunine (Immuno), Mononine (Armour Pharmaceutical), Nanotiv (Kabi Pharmacia), and 9MC (Blood Products Laboratory). The mean specific activity of these products ranged from 68 U factor IX/mg (Aimafix) to 246 U factor IX/mg (Mononine). SDS-PAGE analysis showed that the highest purity product, Mononine, had a single contaminatin

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Fan, Zhou, Gang Zhao, Wei Wang, et al. "The Stellar Abundances and Galactic Evolution Survey (SAGES). I. General Description and the First Data Release (DR1)." Astrophysical Journal Supplement Series 268, no. 1 (2023): 9. http://dx.doi.org/10.3847/1538-4365/ace04a.

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Abstract The Stellar Abundances and Galactic Evolution Survey (SAGES) of the northern sky is a specifically designed multiband photometric survey aiming to provide reliable stellar parameters with accuracy comparable to those from low-resolution optical spectra. It was carried out with the 2.3 m Bok telescope of Steward Observatory and three other telescopes. The observations in the u s and v s passband produced over 36,092 frames of images in total, covering a sky area of ∼9960 deg2. The median survey completenesses of all observing fields for the two bands are u s = 20.4 mag and v s = 20.3 m

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Taleb Hussein, Refat, and Dheif Ibrahem Abood. "Wideband improvement for hybrid plasmonic fractal patch nanoantenna." Bulletin of Electrical Engineering and Informatics 11, no. 5 (2022): 2672–78. http://dx.doi.org/10.11591/eei.v11i5.4129.

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A wideband improvement for hybrid plasmonic fractal patch nanoantenna is presented for use in intra/inter chip optical interconnects. The suggested fractal patch antenna covering a part of U-band (1625-1675), L-band (1565-1625nm), C-band (1530-¬1565nm), S-band (1460-1530nm), E-band (1360-1460nm) and most of O-band (1260-1360nm) optical communication bands. The proposed antenna has a promising future use in inter and intra chip optical communications to eliminate electrical interconnection limitations such as interconnect density, power consumption and also increasing data rate. The performance

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