Results 101 to 110 of about 3,313,131 (376)
Advanced Materials, EarlyView.A linker‐desymmetrization‐modulator‐compensation (LDMC) strategy for constructing structurally diverse Zr‐MOFs is reported. This approach reduces linker symmetry to create defects in Zr‐clusters, which can be compensated for by modulator coordination. Using this approach, we synthesized PCN‐1005 and PCN‐1006, featuring unprecedented Zr‐clusters. In PCN‐
Rong‐Ran Liang +8 more
wiley +1 more source
Direct Monte Carlo simulation of nanoscale mixed gas bearings
Advances in Mechanical Engineering, 2015 The conception of sealed hard drives with helium gas mixture has been recently suggested over the current hard drives for achieving higher reliability and less position error.
Kyaw Sett Myo +4 more
doaj +1 more source
An application of gap regenerator/expander precooled by two stage G-M refrigerator [PDF]
, 1983 The degradation of regenerator effectiveness below 10K is due to the imbalance of the heat capacity of the regenerator material and helium gas as a working fluid.
Matsubara, Y., Yasukochi, K.
core +1 more source
The Effect of Helium Sedimentation on Galaxy Cluster Masses and Scaling Relations
, 2011 Recent theoretical studies predict that the inner regions of galaxy clusters may have an enhanced helium abundance due to sedimentation over the cluster lifetime.
A. Miller +35 more
core +1 more source
Advanced Materials, EarlyView.A systematic study of a series of porous organic cages with perfluorinated alkyl side‐chains of different lengths is presented. The structure‐property relationship of the various cages on gas sorption of highly potent greenhouse gases, such as perfluorocarbons (PFCs), sulfur hexafluoride (SF6), and nitrogen trifluoride (NF3) is investigated.
Ke Tian +8 more
wiley +1 more source
Large controlled amounts of helium in uniform concentration in thick samples can be obtained through the radioactive decay of dissolved tritium gas to He3.
Eash, D. T., Green, W. V., Zukas, E. G.
core +1 more source
Advanced Materials Interfaces, EarlyView.Quantum‐confined lepidocrocite titanate nanofilaments are doped, bottom‐up, with Mn+2, Fe+2, Co+2, Ni+2, and Cu+2 to tune electronic structure and catalysis. Doping narrows the bandgap—by up to ∼0.8 eV—and extends visible absorption. Ni‐doped filaments accelerate oxygen evolution (319 mV at 10 mA cm−2) and TM‐doped samples rapidly degrade rhodamine 6G (
Mohamed A. Ibrahim +6 more
wiley +1 more source
Characterization of a turbomolecular-pumped magnetic sector mass spectrometer [PDF]
A Perkin Elmer MGA-1200, turbomolecular-pumped, magnetic sector, multiple gas analyzer mass spectrometer with modified inlet for fast response was characterized for the analysis of hydrogen, helium, oxygen and argon in nitrogen and helium background ...
Mehta, Narinder K.
core +1 more source
White Light Generation From YAG:Ce‐Doped Phosphate Glass‐Based Composite Fibers
Advanced Optical Materials, EarlyView.The first white‐light‐emitting composite fiber based on YAG:Ce3+ phosphors in phosphate glass is developed. The glass composition is custom‐engineered to enhance thermal stability and to match YAG:Ce3+ refractive index, ensuring composite transparency.
Khaldoon Nasser +9 more
wiley +1 more source