Results 11 to 20 of about 530,939 (289)

Evaluation of the distribution of spray deposits within a vine canopy from measurements on artificial targets and real leaves

OENO One, 2022
Understanding the distribution of intercepted spray deposits is important for the study of the dose-response relationship of spraying a targeted pathogen and for the optimisation of the spraying process.
Anice Cheraiet, Olivier Naud, Mathilde Carra, Sébastien Codis, James Taylor   +4 more
doaj   +1 more source

Oxygen-15 labeled CO2, O2, and CO PET in small animals: evaluation using a 3D-mode microPET scanner and impact of reconstruction algorithms

EJNMMI Research, 2017
Background Positron emission tomography (PET) studies using 15O-labeled CO2, O2, and CO have been used in humans to evaluate cerebral blood flow (CBF), the cerebral oxygen extraction fraction (OEF), and the cerebral metabolic rate of oxygen (CMRO2) and ...
Genki Horitsugi, Tadashi Watabe, Yasukazu Kanai, Hayato Ikeda, Hiroki Kato, Sadahiro Naka, Mana Ishibashi, Keiko Matsunaga, Kayako Isohashi, Eku Shimosegawa, Jun Hatazawa   +10 more
doaj   +1 more source

Lubricating Oil Consumption Measurement on Large Gas Engines

Lubricants, 2022
Increasing the reliability of combustion engines while further reducing emissions and life cycle costs are the main drivers for optimizing lubricating oil consumption (LOC). However, in order to reduce the lube oil consumption of an engine, it is crucial
Bernhard Rossegger, Albrecht Leis, Martin Vareka, Michael Engelmayer, Andreas Wimmer   +4 more
doaj   +1 more source

Evaluating the connectivity of shale gas wells by new rare element tracers

Shiyou shiyan dizhi, 2021
Three types of rare earth elements, Pr, Yb and Sm, in shale gas well and fracturing fluid, which showed a low content and are environmentally friendly and chemically stable, formed complexes with ethylenediamine tetra-acetic acid and di-picolinic acid ...
Baojian SHEN, Anyang PAN, Jun ZHANG, Longfei LU, Menhui QIAN, Shuanglong LU, Mingliang DU   +6 more
doaj   +1 more source

Quantitative measurement of 219Rn radioactivity in exhaled breath from patients with bone metastasis of castration-resistant prostate cancer treated with 223RaCl2

EJNMMI Physics, 2019
Background The α-emitting radionuclide radium-223 (223Ra) is widely used for the treatment of bone metastasis in patients with castration-resistant prostate cancer.
Kazuhiro Ooe, Tadashi Watabe, Takashi Kamiya, Takashi Yoshimura, Makoto Hosono, Atsushi Shinohara, Jun Hatazawa   +6 more
doaj   +1 more source

A method for estimating the extent of denitrification of Arctic polar vortex air from tracer-tracer scatter plots [PDF]

, 2002
A method for estimating the extent of denitrification of Arctic polar vortex air is proposed. Previous estimates of denitrification using tracer-tracer scatter plots have not allowed for mixing-induced changes in tracer-tracer relationships in a ...
Esler, JG, Waugh, DW
core   +1 more source

Measurement of isotopically-exchangeable Zn in Zn-deficient paddy soil [PDF]

, 2015
The changes in soil chemistry following submergence of a soil for rice production result in zinc (Zn) being immobilized in very insoluble forms. Consequently, Zn deficiency is widespread in rice crops and in human populations that subsist on rice.
Atkinson, Ayoub, Bostick, Breemen, Degryse, Dobermann, Forno, Gabler, Hamon, Impa, IRRI, Izquierdo, Izquierdo, Kirk, Laeter, Lindsay, Midwood, Nazif, Oliver, Ponnamperuma, Ponnamperuma, Quevauviller, Römkens, Sajwan, Scharpenseel, Sinaj, Sterckeman, Stroud, Tiller, Tiller, USDA, Young, Young   +32 more
core   +2 more sources

Preserved Cerebral Oxygen Metabolism in Astrocytic Dysfunction: A Combination Study of ¹⁵O-Gas PET with ¹⁴C-Acetate Autoradiography

Brain Sciences, 2019
Fluorocitrate (FC) is a specific metabolic inhibitor of the tricarboxylic acid (TCA) cycle in astrocytes. The purpose of this study was to evaluate whether inhibition of the astrocyte TCA cycle by FC would affect the oxygen metabolism in the rat brain ...
Carla Mari Macaisa, Tadashi Watabe, Yuwei Liu, Victor Romanov, Yasukazu Kanai, Genki Horitsugi, Hiroki Kato, Eku Shimosegawa, Jun Hatazawa   +8 more
doaj   +1 more source

Numerical Simulation of Tracer Transport Process in Alternate Stirring Ladle

Taiyuan Ligong Daxue xuebao, 2023
In the process of steelmaking, improving the flow field in ladle plays an important role in improving the purity of molten steel, homogenization of chemical composition and temperature, and shortening mixing time.
Hongyu QI, Chao CHEN, Liqiang XUE, Rongwang YANG, Peiyuan NI, Lifu YIN, Yujie XIN   +6 more
doaj   +1 more source

USE OF NUCLEAR POWER PLANT RELEASED TRITIUM AS A GROUNDWATER TRACER

Rudarsko-geološko-naftni Zbornik, 2020
Tritium presents a natural radioactive isotope which can be used as a tracer in hydrology. This paper presents the usage of tritium in hydrogeological research of the Zagreb aquifer, which presents the country`s strategic water reserves and is protected ...
Jadranka Barešić, Jelena Parlov, Zoran Kovač, Andreja Sironić   +3 more
doaj   +1 more source