Results 191 to 200 of about 594,915 (259)

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

Advanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li, Jun Xu, Dezhong Xu, Zhaohui Zhang, Jiyi Li, Daxian Cao, Kefu Chen, Mizi Fan   +7 more
wiley   +1 more source

Effect of Humidity on Ionisation and Ion Chemistry in Active-Capillary Dielectric Barrier Discharge Ionisation. [PDF]

Rapid Commun Mass Spectrom
Polášek M, Španěl P, Dryahina K.
europepmc   +1 more source

Toward Metabolomics Analyses With Combined Capillary Vibrating Sharp-Edge Spray Ionization and Atmospheric Pressure Chemical Ionization. [PDF]

Rapid Commun Mass Spectrom
Pursell M, Ojanuga A, Banerjee C, Ezeigbo E, Rahman M, Dewasurendra VK, Hughart TB, Johnson MB, Sultana MN, Guo X, Alexander G, Patel P, Li P, Legleiter J, Valentine SJ.   +14 more
europepmc   +1 more source

From Innovation to Translation: Emerging Direct-Analysis Mass Spectrometry Platforms. [PDF]

J Mass Spectrom
Lino T, da Silva ARJ, da Silva DR, de Oliveira WV, Rocha DG, Augusti R.   +5 more
europepmc   +1 more source

Lu⁺ optical frequency references with accuracy verified at the 19th digit. [PDF]

Nature
Arnold KJ, Lee MDK, Zhao Q, Qin Q, Zhang Z, Jayjong N, Barrett MD.   +6 more
europepmc   +1 more source

Probing non-covalent membrane protein-lipid interactions using sheath liquid capillary electrophoresis-native top-down mass spectrometry.

Analyst
Pathak K, Brinkman D, Walters S, Perrotti G, Fuglestad B, Gomes FP.   +5 more
europepmc   +1 more source

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A Magnetic Ion Source

Review of Scientific Instruments, 1949
An ion source for particle accelerators is described. The ion source utilizes an axial magnetic field for collimation of ion and electron beams and provides an electric field-free region for ion formation. The ion source has afforded yields of 500 microamperes of resolved protons when used in conjunction with a 200-kv high voltage set. A feature of the
C, BAILEY, D L, DRUKEY, F, OPPENHEIMER
openaire   +2 more sources

A POSITIVE ION SOURCE

Canadian Journal of Research, 1948
Positive ions are formed in a low pressure electrodeless discharge which is excited by the radio-frequency field of a coil coupled to a 15 Mc. per sec. oscillator. The ions are extracted from the discharge through a pumping canal (2 mm. in diameter × 12 mm. in length) by a simple arrangement of electrodes. After further focusing and acceleration to 50 
A J, BAYLY, A G, WARD
openaire   +2 more sources