5,107,455 Hits in 4.9 sec


1911 Journal of the American Medical Association  
By connecting X and Y the line XY gives a horizontal view of the needle.  ...  By con¬ necting X and Y the line XY gives a vertical view of the needle.  ... 
doi:10.1001/jama.1911.02560220026012 fatcat:puwd5zdpnncktg3wedrolnbwoa

Constructing x^2 for primes p=ax^2+by^2 [article]

Zhi-Hong Sun
2010 arXiv   pre-print
Let $a$ and $b$ be positive integers and let $p$ be an odd prime such that $p=ax^2+by^2$ for some integers $x$ and $y$.  ...  In the paper, using Jacobi's identity $\prod_{n=1}^\infty (1-q^n)^3 = \sum_{k=0}^\infty (-1)^k(2k+1)q^{\frac{k(k+1)}2}$ we construct $x^2$ in terms of $\lambda(a,b;n)$.  ...  Constructing x 2 for primes p = ax 2 + by 2 . Theorem 3.1. Let a, b ∈ N with 2 ∤ ab. Let p be an odd prime such that p = a, b, p ∤ ab + 1 and p = ax 2 + by 2 with x, y ∈ Z.  ... 
arXiv:1012.3919v1 fatcat:lcqxnf4oorakxojshyom5kaxbm


F. B. Link, L. A. O. Rocha, E. D. Dos Santos, L. A. Isoldi
2014 Revista de Engenharia Térmica  
This paper applies Constructal design to study the geometry of a X-shaped cavity that penetrates into a solid conductive wall.  ...  The cavity surfaces are cooled by convection heat transfer while the solid body is subjected to adiabatic conditions on its outer surfaces.  ...  Luiz Rocha's work was sponsored by CNPq, Brasília, DF, Brazil. Prof. Elizaldo D. dos Santos was sponsored by FAPERGS (Process: 12/1418-4). Mrs.  ... 
doi:10.5380/reterm.v13i1.62070 fatcat:vywvscelpbczjaed545hqxrpii

Constructive diagonalization of an element X of the Jordan algebra J(3,O^3) by the exceptional group F_4 [article]

Takashi Miyasaka, Ichiro Yokota
2010 arXiv   pre-print
We know that any element X of the exceptional Jordan algebra is transformed to a diagonal form by the compact exceptional Lie group F_4.  ...  In this paper, we give a direct and constructive proof.  ...  (v) X (4) can be transformed to diagonal form by some A ∈ Sp (3) , that is, AX (4) A * is of the form   ξ 1 ′′ 0 0 0 ξ 2 (3) 0 0 0 ξ 3 (3)   . Note that all process of (i) -(v) are constructive.  ... 
arXiv:1011.0603v1 fatcat:tytloonlbng5tabohcld5wvzji

Construction Morphology

2014 English Linguistics  
, which also subsumes (i.e. is inherited by) -er-constructions in which X is filled by N (e.g.  ...  The relation between the two sides is specified by co-indexation of the constituents. (2) Booij further argues that [V-er] N is in turn an instantiation (or "subschema") of the general [X-er] N construction  ... 
doi:10.9793/elsj.31.1_275 fatcat:hyjfybscxvastl4c7cvdfx2q6q

Tunable dual-wavelength laser constructed by silicon micromachining

H. Cai, A. Q. Liu, X. M. Zhang, J. Tamil, D. Y. Tang, J. Wu, Q. X. Zhang
2008 Applied Physics Letters  
The wavelength tuning is demonstrated by rotating the micromirror.  ...  This paper presents a tunable dual-wavelength laser by integration of a semiconductor gain chip with silicon-micromachined grating and mirrors onto a silicon substrate.  ...  [10] [11] [12] Inspired by such development, this letter aims at constructing a dual-wavelength laser using the MEMS technology, which may overcome the drawbacks of conventional methods.  ... 
doi:10.1063/1.2840152 fatcat:7sk44nfzezdiljfvu5lol6unay

Constructing oxide interfaces and heterostructures by atomic layer-by-layer laser molecular beam epitaxy [article]

Qingyu Lei, Maryam Golalikhani, Bruce A. Davidson, Guozhen Liu, D. G. Schlom, Qiao Qiao, Yimei Zhu, Ravini U. Chandrasena, Weibing Yang, Alexander X. Gray, Elke Arenholz, Andrew K. Farrar (+4 others)
2016 arXiv   pre-print
laser molecular-beam epitaxy (ALL-Laser MBE) significantly advances the state of the art in constructing oxide materials with atomic layer precision and control over stoichiometry.  ...  With ALL-Laser MBE we have produced conducting LaAlO3/SrTiO3 interfaces at high oxygen pressures that show no evidence of oxygen vacancies, a capability not accessible by existing techniques.  ...  The SrTiO 3 film is constructed in an atomic layer-by-layer manner. (B) RHEED diffracted spot intensity oscillations during the atomic layer-by-layer growth of SrTiO 3 films.  ... 
arXiv:1610.06885v1 fatcat:edxe6wzfejfknaenrgcdwuutxm

A miniature tunable coupled-cavity laser constructed by micromachining technology

H. Cai, A. Q. Liu, X. M. Zhang, J. Tamil, D. Y. Tang, Q. X. Zhang, C. Lu
2008 Applied Physics Letters  
Color online͒ Design of the tunable coupled-cavity laser constructed by the MEMS technology.  ...  In summary, a miniature tunable coupled-cavity laser has been constructed by the MEMS technology.  ... 
doi:10.1063/1.2831912 fatcat:mxl5qnpa4vbr7crhgpbeykzdgm

Analysis of Liquid Structure without Construction of Any Structure Models by the X-Ray Scattering Method

2007 Analytical Sciences  
These parameters are optimized by a non-linear least-squares calculation applied to X-ray scattering data.  ...  A simple approach for determining a liquid structure using X-ray scattering data, in which a liquid structure is uniquely evaluated without construction of any plausible structure models, has been applied  ...  Acknowledgements This work was supported in part by "Academic Frontier" Project for Private Universities: matching fund subsidy from the Ministry of Education, Culture, Sports, Science and Technology of  ... 
doi:10.2116/analsci.23.929 pmid:17690423 fatcat:56efpatguzcxpizujn7v3dp6nu

Comparative Analysis of Recycled Plaster Composition Determined by X-ray Powder Diffraction and Thermogravimetric Analyses

Heloísa Cristina Fernandes Cordon, Mariana Silva Ferreira, Fabio Furlan Ferreira
2021 Construction Materials  
Plaster is primarily used as a building material obtained by the calcination of gypsum.  ...  , and laboratory-recycled plasters, and the results compared with those obtained by thermogravimetric analysis (TGA).  ...  The construction plaster density result was compatible with the value found by Hunger and Brouwers [30] , which was 2720 kg·m −3 .  ... 
doi:10.3390/constrmater1020008 fatcat:ix5qk4ww35cn3nm4qt4n5ec5fq

Characterisation of Constructed Wetland Substrates by Chemical Sequential Extraction and X-Ray Diffraction Analyses

Aisling D. O'Sullivan, Ronald Conlon, Bredagh Moran, Marinus Otte
2005 Biology and Environment (Dublin)  
Substrates from four-and-a-half year old constructed wetlands built to treat wastewater from an active metal mine were analysed for elevated metal and sulphur concentrations by chemical sequential extractions  ...  Classification of the sediments using X-ray techniques was further confounded by the highly organic nature of the wetland substrates.  ...  Constructed (or treatment) wetlands are a type of passive treatment technology that can assist society in the management of its wastewater by relatively 'natural' means.  ... 
doi:10.3318/bioe.2005.105.2.87 fatcat:uxjuwjpfxjg43iksxaddvlh4f4

Construction of pETNF-P16 plasmid and its expression properties in EC9706 cell line induced by X-ray irradiation

Cong-Mei Wu
2004 World Journal of Gastroenterology  
Construction of pETNF-P16 plasmid and its expression properties in EC9706 cell line induced by X-ray irradiation. World J Gastroenterol  ...  AIM: Recombined plasmid pETNF-P16 was constructed to investigate its expression properties in esophageal squamous carcinoma cell line EC9706 induced by X-ray irradiation and the feasibility of gene-radiotherapy  ...  We constructed pEgr-TNFα plasmid and injected it into mouse melanoma locally to induce its expression by X-ray irradiation.  ... 
doi:10.3748/wjg.v10.i20.2927 pmid:15378766 pmcid:PMC4576245 fatcat:sodnknj4k5h2fble7n7kdtyrt4

An efficient strategy for the construction of X-azatricyclo[m.n.0.0a,b]alkanes by intramolecular [3+2]cyclo­addition of nonstabilised cyclic azomethine ylides

2001 ARKIVOC  
Various new structural entities related to X-azatricyclo[m.n.0.0. a,b ]alkanes 15a-d are constructed employing the intramolecular [3+2]-dipolar cycloaddition of nonstabilized cyclic azomethine ylides.  ...  The ylides are generated by the sequential double desilylation of N-alkyl-α,α'bis(trimethylsilyl)cyclic amines 14a-d using Ag(I)F as a one-electron oxidant.  ...  Scheme 2 In this article we delineate the full details 29 of our effort and the success on the construction of various X-azatricyclo[m.n.0.0 a,b ]alkanes skeleton 7 through the strategy as shown in Scheme  ... 
doi:10.3998/ark.5550190.0002.809 fatcat:uaizfwuxsvfghamfrxymu2nolq

Molecular motor constructed from a double-walled carbon nanotube driven by axially varying voltage

Z. C. Tu, X. Hu
2005 Physical Review B  
A new molecular motor is conceptually constructed from a double-walled carbon nanotube (DWNT) consisting of a long inner single-walled carbon nanotube (SWNT) and a short outer SWNT with different chirality  ...  Tuzun predicted a doped nanotube motor driven by laser, 26 and one of the present authors and Ou-Yang proposed a molecular motor constructed from a double-walled carbon nanotube ͑DWNT͒ driven by temperature  ...  X. Li and B. Y. Zhu for their technical help. *Electronic address: FIG. 1 . 1 ͑Color online͒ Schematic diagram of the DWNT motor driven by varying electrical field.  ... 
doi:10.1103/physrevb.72.033404 fatcat:y32eli7sl5ejtpnho366d67mvy

Construction of a Medical Radiation-Shielding Environment by Analyzing the Weaving Characteristics and Shielding Performance of Shielding Fibers Using X-ray-Impermeable Materials

Seon-Chil Kim
2021 Applied Sciences  
Yarns were fabricated by the melt spinning process, and fabrics were woven. With 5 wt% of shielding material, the yarns' shield against radiation and was sufficiently strong for fabric weaving.  ...  The content of barium sulfate and bismuth oxide in each yarn was analyzed by energy-dispersive X-ray spectroscopy (EDS) (Hitachi, HD-2300, High-Tech Corp, Japan).  ...  Al is mainly used for filtering high energy X-rays in X-ray generators.  ... 
doi:10.3390/app11041705 fatcat:adqqyb5ii5cnnflqeufec4izqi
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