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On the application of the principle of the galvanic multiplier to electro-magnetic apparatus: and also to the development of great magnetic power in soft iron with a small galvanic element / by Prof. Joseph Henry ..

Archives, Room Use Only - QC611.H46 1831




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Newly invented portable field telegraph: with an illustration of the principle of its construction and directions for use: also containing the vocabulary of the several characters formed / invented and arranged by A.W. Sleigh

Archives, Room Use Only - UG590.S54 1838




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Recent wonders in electricity, electric lighting, magnetism, telegraphy, telephony, etc., etc. / including articles by Dr. Siemens, F.R.S. Count du Moncel and Prof. Thomson [sic] ; edited by Henry Greer

Archives, Room Use Only - TK148.G74 1883




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General railroad and telegraph laws of the State of Pennsylvania: including the acts relating to incline plane railways and street passenger railways, and such acts relative to corporations as affect railroad and telegraph companies, 1816-1883 / comp. and

Archives, Room Use Only - KFP301.A3 1884




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Tamil Nadu Muslim League to move HC against increase in retirement age for government staff

‘About 68 lakh youth have applied for government jobs’




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US unemployment rate surges to 14.7 pc, the worst since Great Depression




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BLA claims responsibility for killing 6 Pakistan Army personnel, including army major




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[LINK] Fluid Inconsistencies

Front-end developer Steffan Williams of Gridinator fame digs into some of the rendering inconsistencies across various browsers when dealing with percentage-based widths. Now, I don’t think this is a real problem for flexible, grid-based layouts or properly responsive designs. Some of these rounding issues won’t necessarily manifest themselves in your work, or at least not quite as noticeably.

I was, however, emphatically raising my fist in the air when I read this:

While I’m well aware that things don’t have to look the same in every browser, it just seems to strike me as odd that CSS3 features keep getting touted on the front of browser homepages, and yet something as fundamental as a percentage would be rendered incorrectly (or, rather, not as well as would be expected).

Emphasis mine. Much of the behavior Steffan notes was outlined by John Resig in 2008, nearly three years ago. There are some incredible inconsistencies at play here, and designers really shouldn’t have to shoulder the burden of working around them.

In short, some broad consensus between the different rendering engines needs to be reached—and if it comes at the expense of pushing the Next Hot Bleeding-Edge Experimental Sexy CSS3 Feature™ to market, I’m all for it.




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Tiger kills tendu collector in Gadchiroli, first such incident in tendu season




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NFL calls scheduling of only two simultaneous Bucs, Patriots game “coincidental”

If Patriots fans want to separately watch the Patriots and Bill Belichick and the Buccaneers and Tom Brady (and Rob Gronkowski) this year, they can do so at least 14 times. As noted by Mike Reiss of ESPN.com, the two teams don't play at the same time until late in the 2020 season. It happens [more]




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Doctors fight coronavirus with raincoats in Bengal

They told us to wash raincoat and reuse,a doctor said.




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Mortality increases if COVID-19 positive person delays in visiting hospital...

Mortality increases if COVID-19 positive person delays in visiting hospital...




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Prince Harry-Meghan Markle's biography 'Finding Freedom' to...

Prince Harry-Meghan Markle's biography 'Finding Freedom' to...




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Taiwan Dragons vs Hsinchu Titans, Dream11 Prediction: Best picks for TDG vs...

Taiwan Dragons vs Hsinchu Titans, Dream11 Prediction: Best picks for TDG vs...




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Hsinchu Titans vs Taiwan Daredevils, Dream11 Prediction: Best picks for HST...

Hsinchu Titans vs Taiwan Daredevils, Dream11 Prediction: Best picks for HST...




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Excise duty on liquor increased by 25pc : Assam Industries and Commerce Minister




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Naidu writes to PM, requests scientific probe into Vizag gas leak incident




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India Inc launches 600 hotel rooms as quarantine facilities




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OMCs' margins to take a hit post increase in taxes: Ind-Ra




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Women in urban India increasingly opting for life insurance: Max Life




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Haryana CM announces incentives for MSMEs




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‘Saudi Prince Faisal is under detention’

Human Rights Watch (HRW) said on Saturday that Saudi Arabian authorities recently detained and are holding incommunicado Prince Faisal bin Abdullah, w




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36 stranded Manipuri including 16 Cancer patients departs Mumbai for Imphal

36 stranded Manipuri including 16 Cancer patients departs Mumbai for Imphal




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Punjab CM orders magisterial probe into school van fire incident at Longowal




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Amritsar court convicts six including former Punjab DGP in 2004 mass suicide case




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Punjab CM meets Behbal Kalan incident victims' kin, promises time-bound probe




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Punjab govt increases purchase centres to streamline procurement of wheat




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24 more test positive for COVID-19 in Punjab; tally increases to 130




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Punjab CM writes to PM Modi, seeks incentive for farmers




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Hike paddy MSP, incentive bonus to check stubble burning: Punjab CM to PM




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SAD President asks Punjab CM to give incentives to farmers for switching from paddy to other crops




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Amarinder writes to PM for increasing MSP of paddy, giving bonus to farmers




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Don’t increase fees this year, State tells schools

Managements asked to allow parents to pay in instalments




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Karnataka: Nine trade unions to oppose any amendment to labour laws, increase in working hours

Nine trade unions under the umbrella of Joint Committee of Trade Unions (JCTU) have said it would oppose any proposal to increase the working hours an




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Should rental income earners shift to the new tax regime?

Be wise when it comes to opting for the tax regime from this year




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Hsinchu Titans vs Taiwan Daredevils, Dream11 Prediction: Best picks for HST vs TDR today in Taipei T10 League

HST vs TDR Dream11 Team - Check My Dream11 Team, Best players list of today's match, Hsinchu Titans vs Taiwan Daredevils Dream11 Team Player List, TDG Dream11 Team Player List, HST Dream11 Team Player List, Dream11 Guru Tips, Online Cricket Tips, Hsinchu Titans vs Taiwan Daredevils Head to Head.




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Haryana: 25 people, including man with defected leg, on long march to UP’s Mirzapur




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Fast identification of mineral inclusions in diamond at GSECARS using synchrotron X-ray microtomography, radiography and diffraction

Mineral inclusions in natural diamond are widely studied for the insight that they provide into the geochemistry and dynamics of the Earth's interior. A major challenge in achieving thorough yet high rates of analysis of mineral inclusions in diamond derives from the micrometre-scale of most inclusions, often requiring synchrotron radiation sources for diffraction. Centering microinclusions for diffraction with a highly focused synchrotron beam cannot be achieved optically because of the very high index of refraction of diamond. A fast, high-throughput method for identification of micromineral inclusions in diamond has been developed at the GeoSoilEnviro Center for Advanced Radiation Sources (GSECARS), Advanced Photon Source, Argonne National Laboratory, USA. Diamonds and their inclusions are imaged using synchrotron 3D computed X-ray microtomography on beamline 13-BM-D of GSECARS. The location of every inclusion is then pinpointed onto the coordinate system of the six-circle goniometer of the single-crystal diffractometer on beamline 13-BM-C. Because the bending magnet branch 13-BM is divided and delivered into 13-BM-C and 13-BM-D stations simultaneously, numerous diamonds can be examined during coordinated runs. The fast, high-throughput capability of the methodology is demonstrated by collecting 3D diffraction data on 53 diamond inclusions from Juína, Brazil, within a total of about 72 h of beam time.




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A semi-analytical approach for the characterization of ordered 3D nanostructures using grazing-incidence X-ray fluorescence

Following the recent demonstration of grazing-incidence X-ray fluorescence (GIXRF)-based characterization of the 3D atomic distribution of different elements and dimensional parameters of periodic nanoscale structures, this work presents a new computational scheme for the simulation of the angular-dependent fluorescence intensities from such periodic 2D and 3D nanoscale structures. The computational scheme is based on the dynamical diffraction theory in many-beam approximation, which allows a semi-analytical solution to the Sherman equation to be derived in a linear-algebraic form. The computational scheme has been used to analyze recently published GIXRF data measured on 2D Si3N4 lamellar gratings, as well as on periodically structured 3D Cr nanopillars. Both the dimensional and structural parameters of these nanostructures have been reconstructed by fitting numerical simulations to the experimental GIXRF data. Obtained results show good agreement with nominal parameters used in the manufacturing of the structures, as well as with reconstructed parameters based on the previously published finite-element-method simulations, in the case of the Si3N4 grating.




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Investigating increasingly complex macromolecular systems with small-angle X-ray scattering

A review of recent and ongoing development and results within the field of biological solution small-angle X-ray scattering (BioSAXS), with a focus on the increasing complexity of biological samples, data collection and data evaluation strategies.




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Polymeric poly[[decaaquabis(μ6-1,8-disulfonato-9H-carbazole-3,6-dicarboxylato)di-μ3-hydroxy-pentazinc] decahydrate]

The asymmetric unit of the title MOF, [Zn5(C14H5NO10S2)2(OH)2(H2O)10]n comprises three ZnII atoms, one of which is located on a centre of inversion, a tetra-negative carboxyl­ate ligand, one μ3-hydroxide and five water mol­ecules, each of which is coordinated. The ZnII atom, lying on a centre of inversion, is coordinated by trans sulfoxide-O atoms and four water mol­ecules in an octa­hedral geometry. Another ZnII atom is coordinated by two carboxyl­ate-O atoms, one hy­droxy-O, one sulfoxide-O and a water-O atom to define a distorted trigonal–bipyramidal geometry; a close Zn⋯O(carboxyl­ate) inter­action derived from an asymmetrically coordinating ligand (Zn—O = 1.95 and 3.07 Å) suggests a 5 + 1 coordination geometry. The third ZnII atom is coordinated in an octa­hedral fashion by two hy­droxy-O atoms, one carboxyl­ate-O, one sulfoxide-O and two water-O atoms, the latter being mutually cis. In all, the carboxyl­ate ligand binds six ZnII ions leading to a three-dimensional architecture. In the crystal, all acidic donors form hydrogen bonds to oxygen acceptors to contribute to the stability of the three-dimensional architecture.




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Redetermination of the crystal structure of BaTeO3(H2O), including the localization of the hydrogen atoms

The redetermination of the crystal structure of barium oxidotellurate(IV) monohydrate allowed the localization of the hydrogen atoms that were not determined in the previous study [Nielsen, Hazell & Rasmussen (1971). Acta Chem. Scand. 25, 3037–3042], thus making an unambiguous assignment of the hydrogen-bonding scheme possible. The crystal structure shows a layered arrangement parallel to (001), consisting of edge-sharing [BaO6(H2O)] polyhedra and flanked by isolated [TeO3] trigonal pyramids on the top and bottom. O—H⋯O hydrogen bonds of medium strength link adjacent layers along [001].




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Bis(15-crown-5-κ5O)barium tetra­kis­(iso­thio­cynato-κN)zinc(II)

In the title compound, [Ba(C10H20O5)2][Zn(NCS)4], the 15-crown-5 mol­ecules are disordered over two positions with site occupancies of 0.706 (4) and 0.294 (4). The Ba2+ ions are sandwiched between the 15-crown-5 rings and Zn2+ ions are surrounded by four N atoms from the thio­cyanate ligands in a distorted tetra­hedral geometry. The crystal studied was refined as an inversion twin.




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trans-Bis(dimethyl sulfoxide-κO)bis­(3-nitro­benzo­hydroxamato-κ2O,O')zinc(II)

Single crystals of the title complex, [Zn(C7H5N2O4)2(C2H6OS)2] or [Zn(NBZH)2(DMSO)2], were isolated from a dimethyl sulfoxide (DMSO) solution containing [Zn(NBZH)2]·2H2O (NBZH = 3-nitro­benzo­hydroxamate anion). The asymmetric unit comprises of one O,O'-chelating NBZH anion, one O-bound DMSO ligand and one zinc(II) cation localized on an inversion centre. The three-dimensional crystal packing includes N—H⋯O and C—H⋯O hydrogen bonding, as well as O⋯H and H⋯H contacts identified by Hirshfeld isosurface analysis.




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Poly[[μ4-4-(carb­oxylato­meth­yl)benzoato]zinc(II)]

In the title compound, [Zn(C9H6O4)]n, the ZnII cations are coordinated in a tetra­hedral fashion by carboxyl­ate O-atom donors belonging to four 4-(carb­oxy­meth­yl) benzoate (4-cmb) ligands. Each 4-cmb ligand binds to four ZnII cations in an exo­tetra­dentate fashion to create a non-inter­penetrated [Zn(4-cmb)]n three-dimensional coordination polymer network with a new non-diamondoid 66 topology. The crystal studied was refined as an inversion twin.




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(1Z,2Z)-1,2-Bis{2-[3,5-bis­(tri­fluoro­meth­yl)phen­yl]hydrazinyl­idene}-1,2-bis­(4-meth­oxy­phen­yl)ethane including an unknown solvate

The complete mol­ecule of the title compound, C32H22F12N4O2, is generated by a crystallographic twofold axis aligned parallel to [010]. The F atoms of one of the CF3 groups are disordered over three orientations in a 0.6: 0.2: 0.2 ratio. In the crystal, mol­ecules are linked by N—H⋯O hydrogen bonds, forming zigzag chains propagating along the a-axis direction. In addition, weak C—H⋯O and C—H⋯F bonds are observed. The contribution of the disordered solvent to the scattering was removed using the SQUEEZE routine [Spek (2015). Acta Cryst. C71, 9–18] of PLATON. The solvent contribution is not included in the reported mol­ecular weight and density.




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Poly[(μ4-phenyl­phospho­nato)zinc(II)]

The title two-dimensional coordination polymer, [Zn(C6H5PO3)]n, was synthesized serendipitously by reacting a tetra­phospho­nate cavitand Tiiii[C3H7, CH3, C6H5] and Zn(CH3COO)2·2H2O in a DMF/H2O mixture. The basic conditions of the reaction cleaved the phospho­nate bridges at the upper rim of the cavitand, making them available for reaction with the zinc ions. The coordination polymer can be described as an inorganic layer in which zinc coordinates the oxygen atoms of the phospho­nate groups in a distorted tetra­hedral environment, while the phenyl groups, which are statistically disordered over two orientations, point up and down with respect to the layer. The layers inter­act through van der Waals inter­actions. The crystal studied was refined as a two-component twin.




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Tris­(4,4'-di-tert-butyl-2,2'-bi­pyridine)(trans-4-tert-butyl­cyclo­hexa­nolato)­deca-μ-oxido-hepta­oxido­hepta­vanadium aceto­nitrile monosolvate including another unknown solvent mol­ecule

The title hepta­nuclear alkoxido(oxido)vanadium(V) oxide cluster complex, [V7(C10H19O)O17(C18H24N2)3]·CH3CN, was obtained by the reaction of [V8O20(C18H24N2)4] with 4-tert-butyl­cyclo­hexa­nol (mixture of cis and trans) in a mixed CHCl3/CH3CN solvent. The complex has a V7O18N6 core with approximately Cs symmetry, which is composed of two VO4 tetra­hedra, two VO6 octa­hedra and three VO4N2 octa­hedra. In the crystal, these complexes are linked together by weak inter­molecular C—H⋯O hydrogen bonds between the 4,4'-di-tert-butyl-2,2'-bi­pyridine ligand and the V7O18N6 core, forming a one-dimensional network along the c-axis direction. Besides the complex, the asymmetric unit contains one CH3CN solvent mol­ecule. The contribution of other disordered solvent mol­ecules to the scattering was removed using the SQUEEZE option in PLATON [Spek (2015). Acta Cryst. C71, 9–18]. The unknown solvent mol­ecules are not considered in the chemical formula and other crystal data.




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Inter­molecular hydrogen bonding in isostructural pincer complexes [OH-(t-BuPOCOPt-Bu)MCl] (M = Pd and Pt)

In the crystal structure of the isostructural title compounds, namely {2,6-bis­[(di-tert-butyl­phosphan­yl)­oxy]-4-hy­droxy­phen­yl}chlorido­palladium(II), [Pd(C22H39O3P2)Cl], 1, and {2,6-bis­[(di-tert-butyl­phosphan­yl)­oxy]-4-hy­droxy­phen­yl}chlorido­platinum(II), [Pt(C22H39O3P2)Cl], 2, the metal centres are coordinated in a distorted square-planar fashion by the POCOP pincer fragment and the chloride ligand. Both complexes form strong hydrogen-bonded chain structures through an inter­action of the OH group in the 4-position of the aromatic POCOP backbone with the halide ligand.




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Crystal structure of bis­[di­hydro­bis­(pyrazol-1-yl)borato-κ2N2,N2'](1,10-phenanthroline-κ2N,N')zinc(II)

The asymmetric unit of the title compound, [Zn(C6H8N4B)2(C12H8N2)], comprises one half of a ZnII cation (site symmetry 2), one di­hydro­bis­(pyrazol-1-yl)borate ligand in a general position, and one half of a phenanthroline ligand, the other half being completed by twofold rotation symmetry. The ZnII cation is coordinated in form of a slightly distorted octa­hedron by the N atoms of a phenanthroline ligand and by two pairs of N atoms of symmetry-related di­hydro­bis­(pyrazol-1-yl)borate ligands. The discrete complexes are arranged into columns that elongate in the c-axis direction with a parallel alignment of the phenanthroline ligands, indicating weak π–π inter­actions.