Boreas: A Sample Preparation-Coupled Laser Spectrometer System for Simultaneous High-Precision In Situ Analysis of δC and δH from Ambient Air Methane.

We present a new instrument, "Boreas", a cryogen-free methane (CH) preconcentration system coupled to a dual-laser spectrometer for making simultaneous measurements of δC(CH) and δH(CH) in ambient air. Excluding isotope ratio scale uncertainty, we estimate a typical standard measurement uncertainty for an ambient air sample of 0.07‰ for δC(CH) and 0.

Dataset on the absorption of PCDTBT:PCBM layers and the electro-optical characteristics of air-stable, large-area PCDTBT:PCBM-based polymer solar cell modules, deposited with a custom built slot-die coater.

The data presented in this article is related to the research article entitled "Fabrication of air-stable, large-area, PCDTBT:PCBM polymer solar cell modules using a custom built slot-die coater" (D.I. Kutsarov, E.

Visible light communications: real time 10 Mb/s link with a low bandwidth polymer light-emitting diode.

This paper presents new experimental results on a polymer light-emitting diode based visible light communications system. For the first time we demonstrate a 10 Mb/s link based on the on-off keying data format with real time equalization on a field programmable gate array. The 10 Mb/s transmission speed is available at a bit error rate less than 4.

Dynamic crossover in hydration water of curing cement paste: the effect of superplasticizer.

The influence of a new comb-shaped polycarboxylate-based superplasticizer (CSSP) on the hydration kinetics and transport properties of aged cement pastes has been investigated by high-resolution quasi-elastic neutron scattering (QENS) and low temperature differential scanning calorimetry (LT-DSC). A new method of analysis of QENS spectra is proposed. By applying the refined method we were able to access to four independent physical parameters including the self-diffusion coefficient of the hydration water confined in the cement paste.