Tuesday, July 25, 2017

Breaking the Rules with Cutting-Edge Lighting for the Home

Buster + Punch take their lighting to unexpected yet stylish levels with their HEAVY METAL Pendant and LED BUSTER Bulb. A London-born home fashion label that works with unusual, solid materials to make extraordinary items for everyday use, Buster + Punch's custom lighting fuses unique design and attitude to light up any room in the home from the kitchen to the bathroom and even the home bar area. Buster + Punch's striking British-infused lighting makes a design statement for all.

Buster + Punch

Buster + Punch's HEAVY METAL Pendant adds a bold and refined look to any room. The eclectic lighting piece features a single light pendant that is made from solid Steel, Brass, Smoked Bronze or Matt Black with signature knurled satin metal and Matt rubber detailing. Buster + Punch also offer a range of light bulbs with original styling, including the LED BUSTER Bulb.

Buster + Punch

The LED BUSTER Bulb is the industry's most innovative eco-friendly LED alternative to traditional filament bulbs and the first to implement novel changes in design. With an E26 base, it can also be used as a direct replacement for standard screw-thread incandescent bulbs. The resin light pipe at the center of the bulb is where all of the magic happens. It allows the bulb to perform two incredible functions: a focused spotlight to illuminate surfaces below and a warm ambient glow to light faces and spaces around it. Defining the next evolution in an industry that is undergoing a change in ideals, the LED BUSTER Bulb raises the bar in lighting technologies.

·         Available in dimmable and non-dimmable options 
·         At 2700K, provides a soft, flattering ambient light 
·         At 5W (dimmable) and 2W (non-dimmable), the bulbs consume just 1/20th of the energy of a conventional incandescent bulb 
·         Lasts over seven times longer than a standard bulb or incandescent 
·         Bulbs exceed all applicable U.S. safety standards 
·         Bulb life is an excellent 30,000 hours 
·         Available in Warm Gold, Smoked Grey and Bright Crystal bulb finishes 
·         Bulbs are finished with a satin metallic sheen
Keywords:LED bulbs,lighting design,home lighting.custom lighting.Buster+Punch,

Source:  LEDinside

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Monday, July 10, 2017

KxFe2−ySe2 single crystals: floating-zone growth, transport and structural properties


Single crystals of superconducting KxFe2−ySe2 have been grown with the optical floating-zone technique under application of 8 bar of argon pressure. We found that large and high quality single crystals with dimensions of  ~ 6 mm ×10 mm could be obtained at the termination of the grown ingot through quenching, while the remaining part of the ingot decomposed. As-grown single crystals commonly represent an intergrowth of two sets of c-axes characterized by slightly different lattice constants. Single-crystal K0.80Fe1.81Se2 shows a superconducting transition at Tc = 31.6 K, leading to a near 100% expulsion of the external magnetic field in magnetization measurements. On the other hand, neutron diffraction data indicate that superconductivity in the sample coexists with a $\sqrt{5}\times \sqrt{5}$ iron-vacancy superstructure and static antiferromagnetic order. The anisotropic ratio of the upper critical field Hc2 for both H ∥ c and H ∥ ab configurations is  ~ 3.46.
Keywords:Single crystal,
Source:  LEDinside

Tuesday, July 4, 2017

New data reduction protocol for Bragg reflections observed by TOF single-crystal neutron diffractometry for protein crystals with large unit cells


In protein crystallography, high backgrounds are caused by incoherent scattering from the hydrogen atoms of protein molecules and hydration water. In addition, the scattering intensity from large unit-cell crystals is very small, which makes it difficult to improve the signal-to-noise ratio. In the case of time-of-flight (TOF) single-crystal neutron diffractometry, the measured spectra cover four-dimensional space including X, Y, and TOF in addition to intensity. When estimating the integrated intensity, 3D background domains in the vicinity of peaks should be clearly classified. In conventional 1D or 2D background evaluation, the evaluation is applied for individual peaks assigned using peak searches; however, it is quite difficult to classify the 3D background domain in TOF protein single-crystal neutron diffraction experiments. We undertook the development of a data reduction protocol for measurements involving large biomacromolecules. At the initial stage of the reduction protocol, appropriate 3D background estimation and eliminations were applied over the entire range of X, Y, and TOF bins. The histograms were then searched for peaks and indexed, and the individually assigned peaks were finally integrated with an effective profile function in the TOF direction. Three-dimensional deconvolution procedures for overlapping peaks associated with large unit cells were implemented as necessary. This data reduction protocol may lead to the improvement of signal-to-noise ratios to enable TOF spectral analysis of large unit-cell protein crystals.
Source:  iopscience