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Electricity in Britain: history, generation, transmission, applications / by Brian Bowers

Archives, Room Use Only - HD9685.G7 B69 1986




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Telegraph instruments and appliances, telephone apparatus and fittings, fire alarm equipment, bells, batteries and general electrical supplies: catalogue no. 27.

Archives, Room Use Only - TK455.J43 1915




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Catalogue & price list of Post & Company, Cincinnati, Ohio: manufacturers of railway car trimmings, head-lights, lamps, etc., telegraph & telephone instruments & supplies, dealers in all kinds of railway supplies, metals, machinery, brass

Archives, Room Use Only - TK455.P67 1880




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Electricity in its application to telegraphy: a practical handbook covering the syllabus of the new technical examination (adopted by the Post Office Telegraph Department) / by T.E. Herbert

Archives, Room Use Only - TK5266.H47 1897




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On railway telegraphs, and the application of electricity to the signalling and working of trains / by William Henry Preece, Assoc. Inst. C.E., with an abstract of the discussion upon the paper ; edited by Charles Manby, F.R.S., M. Inst. C.E., honorary s

Archives, Room Use Only - TF627.P74 1863




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Illustrated catalogue and price list no. 13 of telegraph instruments, district telegraph supplies, hotel annunciators, house calls, burglar alarms, patented specialties, &c., &c. / manufactured exclusively by the National Electrical Manufacturing

Archives, Room Use Only - TK5295.N38 1895




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Illustrated descriptive catalogue of telegraph instruments & supplies and electrical apparatus: consisting of Morse telegraph instruments, battery and office supplies, line supplies, printing telegraph apparatus, burglar alarms, hotel and house calls,

Archives, Room Use Only - TK5295.W47 1875




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Decision of Hon. Philip F. Thomas, commissioner of patents, on the application of Samuel F.B. Morse, for an extension of his patent for a new and useful improvement in electro-magnetic telegraphs: patented April 11, 1846: patent extended for seven years f

Archives, Room Use Only - KF228.M674 U55 1860




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On the application of magnetism as a measure of electricity / by the Rev. J. Cumming, M.A. F.R.S. M.G.S., professor of chemistry in the University of Cambridge ; read May 21, 1821

Archives, Room Use Only - QC517.C85 1821




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Before the Commissioner of patents: in the matter of the application of Samuel F.B. Morse, for an extension for seven years of letters patent granted to him June 20th, 1840, reissued January 15th, 1846, and again reissued June 13th, 1848, for the electro-

Archives, Room Use Only - TK5118.M7 H37 1854




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Manuel de physique amusante, ou, Nouvelles récréations physiques: contenant une suite d'expériences curieuses, instructives et d'une exécution facile, ainsi que diverses applications aux arts et à l'industrie: suivi d&

Archives, Room Use Only - Q164.J85 1829




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Laird & Lee's vest-pocket practical compend of electricity: thorough instruction in theory and application / by Prof. James A. Beaton

Archives, Room Use Only - TK151.B43 1901




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Chapman's principia, or, Nature's first principles: theory of universal electro-magnetism, simplified: explaining the elements of the important discovery of the laws of nature, which regulate the changes of the elements: exposing the numerous disc

Archives, Room Use Only - QC670.C43 1855




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Extrait des règlements généraux applicable sur les réseaux Est, Êtat, P.L.M., P.O.: extract from general regulations in effect on the Est, Etat, P.L.M., P.O. railways: for the use of members of the Transportation Department engag

Archives, Room Use Only - TF559.E98 1918




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Rudimentary electricity: being a concise exposition of the general principles of electrical science, and the purposes to which it has been applied / by Sir W. Snow Harris

Archives, Room Use Only - QC527.H37 1853




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Telegraphy and telephony with railroad applications / by Charles Stanley Rhoads ; a description of the fundamentals of telegraphy and telephony and of the organization, outside and inside plant, apparatus, circuits and methods of operation, engineering a

Archives, Room Use Only - TK5262.R46 1924




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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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Télégraphie et téléphonie sans fil expliquées a tout le monde / par Henry de Graffigny, ancien chroniqueur scientifique du Petit Troyen ; avec 24 figures explicatives

Archives, Room Use Only - TK5745.G734 1921




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Catalogue and price list of household and experimental electrical supplies of superior quality and at moderate cost / J. Elliott Shaw & Co

Archives, Room Use Only - TK455.J34 1897




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'Grey's Anatomy' star Caterina Scorsone, hubby Rob Giles split after decade of marriage




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K-SET application date for assistant professorship extended till May 25




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Scramble for supplies marks Day 1 of lockdown

Long queues outside grocery stores, inflated prices, difficulty in getting important items -- these were some of the problems encountered by people in the National Capital Region (NCR).




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As hospitals close, cancer patients take to helplines

As hospitals close, cancer patients take to helplines




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Singh hails ‘disciplined’ NE model of COVID-19 management

Singh hails ‘disciplined’ NE model of COVID-19 management




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IYC starts helpline across country to facilitate inter-state train travel of migrant workers




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Migrant workers queue up outside Bihar Bhawan to seek help, say helpline number doesn't work




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Need a cost-effective sampling strategy to estimate Covid-19 cases

A simple random sampling provides each individual comprising the population the same probability of inclusion in the sample. Such a sampling technique has been adopted in some European countries




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Publicise helpline number for differently-abled persons: HC

Asks govt. to examine possibility of earmarking exclusive funds for them




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All-party delegation from Punjab to meet PM for simplification of process to visit Kartarpur Sahib




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Punjab Govt extends application date for various recruitment drives




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Chandigarh University uses 3D printing technology to design splitters that can bridge ventilators shortfall in India




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Punjab launches special COVID-19 helpline for citizens




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Two aides of Naikoo's accomplice nabbed in Amritsar




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Punjab Police nab 2 accomplices of slain Hizbul Mujahideen terrorist Riaz Naikoo's aide




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Tamil Nadu to introduce online application for RTI

Trial run of software will be conducted




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Random sampling finds two positive cases in two days in Panchkula




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A portable on-axis laser-heating system for near-90° X-ray spectroscopy: application to ferropericlase and iron silicide

A portable IR fiber laser-heating system, optimized for X-ray emission spectroscopy (XES) and nuclear inelastic scattering (NIS) spectroscopy with signal collection through the radial opening of diamond anvil cells near 90°with respect to the incident X-ray beam, is presented. The system offers double-sided on-axis heating by a single laser source and zero attenuation of incoming X-rays other than by the high-pressure environment. A description of the system, which has been tested for pressures above 100 GPa and temperatures up to 3000 K, is given. The XES spectra of laser-heated Mg0.67Fe0.33O demonstrate the potential to map the iron spin state in the pressure–temperature range of the Earth's lower mantle, and the NIS spectra of laser-heated FeSi give access to the sound velocity of this candidate of a phase inside the Earth's core. This portable system represents one of the few bridges across the gap between laser heating and high-resolution X-ray spectroscopies with signal collection near 90°.





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(1R,2S,4r)-1,2,4-Tri­phenyl­cyclo­pentane-1,2-diol and (1R,2S,4r)-4-(2-meth­oxy­phen­yl)-1,2-di­phenyl­cyclo­pentane-1,2-diol: application as initiators for ring-opening polymerization of ∊-caprolactone

Reductive cyclization of 1,3,5-triphenyl- and 3-(2-meth­oxy­phen­yl)-1,5-di­phenyl­pentane-1,5-diones by zinc in acetic acid medium leads to the formation of 1,2,4-tri­phenyl­cyclo­pentane-1,2-diol [1,2,4-Ph3C5H5-1,2-(OH)2, C23H22O2, (I)] and 4-(2-meth­oxy­phen­yl)-1,2-di­phenyl­cyclo­pentane-1,2-diol [4-(2-MeOC6H4)-1,2-Ph2C5H5-1,2-(OH)2, C24H24O3, (II)]. Their single crystals have been obtained by crystallization from a THF/hexane solvent mixture. Diols (I) and (II) crystallize in ortho­rhom­bic (Pbca) and triclinic (Poverline{1}) space groups, respectively, at 150 K. Their asymmetric units comprise one [in the case of (I)] and three [in the case of (II)] crystallographically independent mol­ecules of the achiral (1R,2S,4r)-diol isomer. Each hydroxyl group is involved in one intra­molecular and one inter­molecular O—H⋯O hydrogen bond, forming one-dimensional chains. Compounds (I) and (II) have been used successfully as precatalyst activators for the ring-opening polymerization of ∊-caprolactone.





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Formation of a highly dense tetra-rhenium cluster in a protein crystal and its implications in medical imaging

The fact that a protein crystal can serve as a chemical reaction vessel is intrinsically fascinating. That it can produce an electron-dense tetranuclear rhenium cluster compound from a rhenium tri­carbonyl tri­bromo starting compound adds to the fascination. Such a cluster has been synthesized previously in vitro, where it formed under basic conditions. Therefore, its synthesis in a protein crystal grown at pH 4.5 is even more unexpected. The X-ray crystal structures presented here are for the protein hen egg-white lysozyme incubated with a rhenium tri­carbonyl tri­bromo compound for periods of one and two years. These reveal a completed, very well resolved, tetra-rhenium cluster after two years and an intermediate state, where the carbonyl ligands to the rhenium cluster are not yet clearly resolved, after one year. A dense tetranuclear rhenium cluster, and its technetium form, offer enhanced contrast in medical imaging. Stimulated by these crystallography results, the unusual formation of such a species directly in an in vivo situation has been considered. It offers a new option for medical imaging compounds, particularly when considering the application of the pre-formed tetranuclear cluster, suggesting that it may be suitable for medical diagnosis because of its stability, preference of formation and biological compatibility.




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Automated electron diffraction tomography – development and applications

Electron diffraction tomography (EDT) has gained increasing interest, starting with the development of automated electron diffraction tomography (ADT) which enables the collection of three-dimensional electron diffraction data from nano-sized crystals suitable for ab initio structure analysis. A basic description of the ADT method, nowadays recognized as a reliable and established method, as well as its special features and general applicability to different transmission electron microscopes is provided. In addition, the usability of ADT for crystal structure analysis of single nano-sized crystals with and without special crystallographic features, such as twinning, modulations and disorder is demonstrated.




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A temperature-controlled cold-gas humidifier and its application to protein crystals with the humid-air and glue-coating method

The room-temperature experiment has been revisited for macromolecular crystallography. Despite being limited by radiation damage, such experiments reveal structural differences depending on temperature, and it is expected that they will be able to probe structures that are physiologically alive. For such experiments, the humid-air and glue-coating (HAG) method for humidity-controlled experiments is proposed. The HAG method improves the stability of most crystals in capillary-free experiments and is applicable at both cryogenic and ambient temperatures. To expand the thermal versatility of the HAG method, a new humidifier and a protein-crystal-handling workbench have been developed. The devices provide temperatures down to 4°C and successfully maintain growth at that temperature of bovine cytochrome c oxidase crystals, which are highly sensitive to temperature variation. Hence, the humidifier and protein-crystal-handling workbench have proved useful for temperature-sensitive samples and will help reveal temperature-dependent variations in protein structures.




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Application of a high-throughput microcrystal delivery system to serial femtosecond crystallography

Microcrystal delivery methods are pivotal in the use of serial femtosecond crystallography (SFX) to resolve the macromolecular structures of proteins. Here, the development of a novel technique and instruments for efficiently delivering microcrystals for SFX are presented. The new method, which relies on a one-dimensional fixed-target system that includes a microcrystal container, consumes an extremely low amount of sample compared with conventional two-dimensional fixed-target techniques at ambient temperature. This novel system can deliver soluble microcrystals without highly viscous carrier media and, moreover, can be used as a microcrystal growth device for SFX. Diffraction data collection utilizing this advanced technique along with a real-time visual servo scan system has been successfully demonstrated for the structure determination of proteinase K microcrystals at 1.85 Å resolution.




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A temperature-controlled cold-gas humidifier and its application to protein crystals with the humid-air and glue-coating method

A new temperature-controllable humidifier for X-ray diffraction has been developed. It is shown that the humidifier can successfully maintain protein crystal growth at a temperature lower than room temperature.




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Pattern matching indexing of Laue and monochromatic serial crystallography data for applications in Materials Science

An algorithm, based on the matching of q-vectors pairs, is combined with three-dimensional pattern matching using a nearest-neighbors approach to index Laue and monochromatic serial crystallography data recorded on small unit cell samples.




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Forthcoming article in Journal of Applied Crystallography




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Research on tungara frogs may be applicable to hearing loss/attention deficits in humans

A new study has revealed information about the way tungara frogs in the tropical rain forest hear, sort, and process sounds which is very similar to the way humans do. The knowledge could be applicable to communication disorders associated with hearing loss and attention deficits or difficulties.

The post Research on tungara frogs may be applicable to hearing loss/attention deficits in humans appeared first on Smithsonian Insider.




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Split-personality elliptical galaxy holds a hidden spiral

Astronomers have discovered that one well-known elliptical galaxy has a split personality. Centaurus A is hiding a gassy spiral in its center.

The post Split-personality elliptical galaxy holds a hidden spiral appeared first on Smithsonian Insider.




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Toxicity of mercury hot spots can be reduced with application of activated carbon, researchers discover

Hot spots of mercury pollution in aquatic sediments and soils can contaminate local food webs and threaten ecosystems, but cleaning them up can be expensive […]

The post Toxicity of mercury hot spots can be reduced with application of activated carbon, researchers discover appeared first on Smithsonian Insider.