نتایج جستجو برای: situ techniques

تعداد نتایج: 751975  

2016
Christopher Chibueze Azubuike Chioma Blaise Chikere Gideon Chijioke Okpokwasili

Environmental pollution has been on the rise in the past few decades owing to increased human activities on energy reservoirs, unsafe agricultural practices and rapid industrialization. Amongst the pollutants that are of environmental and public health concerns due to their toxicities are: heavy metals, nuclear wastes, pesticides, green house gases, and hydrocarbons. Remediation of polluted sit...

Journal: :IEEE transactions on ultrasonics, ferroelectrics, and frequency control 2009
Sharath Sriram Madhu Bhaskaran Tatiana S Perova Vasily A Melnikov Anthony S Holland

Thin films of ferroelectric strontium-doped lead zirconate titanate [PSZT, (Pb(0.92)Sr(0.08))(Zr(0.65)Ti(0.35))O(3)] deposited by RF magnetron sputtering have been analyzed by in situ analysis techniques. The in situ techniques employed for this study include micro-Raman spectroscopy and X-ray diffraction (XRD), and variations in thin film structure and orientations for temperatures up to 350 d...

Journal: :polyolefins journal 0
he-xin zhang department of polymer science and engineering, kyungpook national university, korea seung-ri lee department of polymer science and engineering, kyungpook national university, korea dong-ho lee department of polymer science and engineering, kyungpook national university, korea xue-quan zhang key lab. of synthetic rubber, changchun institute of applied chemistry, chinese academic of science, china keun-byoung yoon department of polymer science and engineering, kyungpook national university, korea

despite the great potential of graphene as a nanofiller, achieving homogeneous dispersion remains the key challenge for effectively reinforcing polyolefin (such as polyethylene (pe) and polypropylene (pp)) nanocomposites. therefore, in this research, we report a facile combined in situ polymerization and masterbatch method for fabricating pp/reduced graphene oxide (rgo) nanocomposites. in the p...

Journal: :Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia 2001
T Ishida H Nishida Y Tomizawa M Endo H Koyanagi

Sequential bypass in coronary artery bypass grafting with in situ arterial conduits, the bilateral internal thoracic arteries and the right gastroepiploic artery, is one of the most important procedures using a limited number of in situ arterial conduits to revascularize a wide area, although it demands rather difficult techniques. We report a case of a 50-year-old man who underwent sextuple by...

Journal: :Angewandte Chemie 2022

Understanding the electrode/electrolyte interface is crucial for optimizing electrocatalytic performances. Here, we demonstrate that nature of alkali metal cations can profoundly impact oxygen evolution activity surface-mounted metal–organic framework (SURMOF) derived electrocatalysts, which are based on NiFe(OOH). In situ Raman spectroscopy results show shifts Ni−O bending vibration inversely ...

Journal: :Journal of physics 2021

Abstract The combination of in-situ collected data and statistical modelling techniques proved to be a promising approach in actual building energy performance assessments, such as heat loss coefficient (HLC) evaluation. In this study, based on datasets co-heating pseudo-random binary sequence heating tests portable site office, the three types models (i.e. multiple linear regression (MLR), aut...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده علوم انسانی 1392

this study investigated the impact of explicit instruction of morphemic analysis and synthesis on the vocabulary development of the students. the participants were 90 junior high school students divided into two experimental groups and one control group. morphological awareness techniques (analysis/synthesis) and conventional techniques were used to teach vocabulary in the experimental groups a...

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