Atomic nuclei lie at the core of everything visible; and first level approximation, their atomic weights are simply sum masses all neutrons protons (nucleons) they contain. Each nucleon has a mass m N ≈ 1 GeV 2000-times electron mass. The Higgs boson – discovered large hadron collider in 2012, decade ago produces latter, but what generates mass? This is pivotal question. answer widely supposed ...

Membrane contactor using amine based absorbents is an efficient technology for CO2 separation from gaseous mixtures. A novel porous polysulfone (PSF) flat membrane was prepared via non-solvent phase inversion method. The PSF membrane was modified by adding polyvinyl pyrrolidone (PVP) to the dope solution. The fabricated membrane was used in the serpentine flow field contactor module for CO2 abs...

Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in Guizhou, China, we detect 21cm neutral atomic hydrogen absorption young planetary nebula IC 4997. The arises from a shell also associated with Na I D lines. H has mass of $1.46\times10^{-2}$ M$_\odot$ and dynamic age 990yr. column density is estimated to be $7.1\times10^{20}$ cm$^{-2}$, which can well explained terms phot...

If Ill' ... , ~tn are non-atomic probability measures on the same measurable space (S, ff"), then there is an ff"-measurable partition {AJ7= 1 of S so that IlJAi)~(n-l+m)-l for all i=I, ... ,n, where m=l l i 01 lli l l is the total mass of the largest measure dominated by each of the Il/s; moreover, this bound is attained for all n ~ 1 and all m in [0,1]. This result is an analog of the bound (...

In the interest of a more thorough understanding of the relationship between sample deposition technique and the quality of data obtained using matrix-assisted laser desorption/ionization (MALDI) mass spectrometry, details of the electrospray (ES) process of sample deposition are investigated using a number of techniques. Sample morphology was observed with scanning electron microscopy (SEM) an...

A high ZT of 0.11 at room temperature was realized in layered cobalt oxide by substitution heavy atomic mass Ba.

The calibration of measurements of the isotope amount ratio using a log-linear regression method with multicollector-inductively coupled plasma mass spectrometry (MC-ICPMS) is the latest development in isotope amount ratio metrology. This calibration method, however, is often met with criticism. In this work, we evaluate the robustness of this calibration strategy wherein measurements of antimo...

Tailoring the thermal conductivity of polymers is central to enlarge their applications in the thermal management of flexible integrated circuits. Progress has been made over the past decade by fabricating materials with various nanostructures, but a clear relationship between various functional groups and thermal properties of polymers remains to be established. Here, we numerically study the ...

Precise control of elemental configurations within multimetallic nanoparticles (NPs) could enable access to functional nanomaterials with significant performance benefits. This can be achieved down to the atomic level by the disorder-to-order transformation of individual NPs. Here, by systematically controlling the ordering degree, we show that the atomic ordering transformation, applied to AuC...