Results 21 to 30 of about 52,198 (240)

The Separation of Isotopes [PDF]

open access: yesNature, 1920
IN a recent discussion (Phil. Mag., vol. xxxvii., p. 523, 1919) of a number of methods of separating isotopes Prof. Lindemann and Dr. Aston have shown that there is little prospect of effecting by the methods, considered a separation which will yield pure samples of the isotopes in a reasonable time. Dr.
THOMAS R. MERTON, HAROLD HARTLEY
openaire   +2 more sources

Mathematical Description of Q-Model Cascade with Multiple Feeds and Withdrawals

open access: yesJournal of Isotopes, 2022
There are possibilities of using cascades with multiple feeds and withdrawals to meet the needs of complicated separation tasks for a better separation results.
ZENG Shi
doaj   +1 more source

Photoluminescence Induced in Mineral Oil by Ionizing Radiation

open access: yesLubricants, 2023
We have studied photoluminescence (PL) properties of vacuum pump mineral oil as a function of the type and intensity of ionizing radiation exposure. The mineral oil has a simple aliphatic structure, which possesses no chromophore in the traditional sense.
Valery N. Bliznyuk   +7 more
doaj   +1 more source

Centrifugal Separation of Boron Isotopes Using Boron Trichloride as Processing Gas

open access: yesJournal of Isotopes, 2018
Stable isotopes had been widely used in the industrial production, health care, fundamental physics research, and so on. Natural boron has two stable isotopes: 10B (19.9%) and 11B(80.1%).
PAN Jianxiong;ZHOU Mingsheng;PEI Gen;JIANG Dongjun;HONG Feng
doaj   +1 more source

Investigation the effect of M* and α0 on the separation of 4th and 8th isotopes of tellurium in a Q model cascade [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2022
One of the crucial parameters in designing the Q model cascade for the multi-component systems is the M* parameter. In this research, a code called MOTACAS has been developed to design a Q cascade, using the optimal value of the M* parameter.
F. Mansourzadeh   +2 more
doaj   +1 more source

Study on Key Process Parameter for Separation and Preparation of High Abundance Ytterbium 176 Isotopes by Electromagnetic Method

open access: yesYuanzineng kexue jishu, 2023
Due to the excellent physical properties and advantages in the field of tumor therapy, lutetium 177 has attracted extensive attention in the field of internal radiation therapy in nuclear medicine.
XU Kun;REN Xiuyan;WU Dan;LI Ziying;LUO Feng;LIANG Shuang;YUAN Bo;FENG Zhe;ZENG Ziqiang;WANG Guobao;ZHAO Chunrui
doaj  

Study on Specific Carbon Isotope Fractionation of n-Alkanes during Column Chromatography Separation-Molecular Sieve Complexation Adsorption

open access: yesYankuang ceshi, 2021
BACKGROUND Before analyzing the carbon isotopes of n-alkanes by gas chromatography-gas isotope mass spectrometry (GC-IRMS), it is necessary to pre-separate and enrich n-alkanes and isoparaffins in saturated hydrocarbon samples. Whether the carbon isotope
DONG Hao-wei   +6 more
doaj   +1 more source

Mathematical Modeling of Nonstationary Separation Processes in Gas Centrifuge Cascade for Separation of Multicomponent Isotope Mixtures

open access: yesMATEC Web of Conferences, 2016
This article presents results of development of the mathematical model of nonstationary separation processes occurring in gas centrifuge cascades for separation of multicomponent isotope mixtures. This model was used for the calculation parameters of gas
Orlov Alexey   +2 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Laser isotope enrichment of 168Er

open access: yesScientific Reports
This present study investigates a three-step laser isotope separation method for the enrichment of 168Er isotope using 631.052 nm – 586.912 nm – 566.003 nm three-step photoionization scheme.
M. V. Suryanarayana
doaj   +1 more source

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