نتایج جستجو برای: stirred 60 min ultrasonically

تعداد نتایج: 450948  

Journal: :Metals 2022

In this study, the zinc containing dust and sludge of iron steel smelting was taken as research object, new ionic liquid choline-urea prepared synthesized leaching agent. The conventional ultrasonic were compared, influence liquid-solid ratio, temperature, time, power other conditions on rate analyzed. residue characterized by Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (...

Journal: :Anticancer research 2010
Nami Sugita Yumiko Iwase Nagahiko Yumita Toshihiko Ikeda Shin-Ichiro Umemura

AIM The ultrasonically induced effect of a tumor accumulative derivative of rose bengal (RB) on isolated tumor cells was investigated to clarify whether the RB derivative (RBD) maintains the sonosensitizing ability of RB. MATERIALS AND METHODS Sarcoma 180 cells were suspended in air-saturated phosphate-buffered saline and were exposed to ultrasound in standing wave mode for up to 60 s in the ...

Journal: :The Journal of the Acoustical Society of America 1971
W T Coakley D Hampton F Dunn

An •mo•b•, Hartmanindia •astdlanii, which possesses many features typical of higher-order animal cells, was irradiated with 1-MHz ultrasound while suspended inordinary growth medium and in one with increased viscosity. The ultrasonically produced cavitation was monitored and a strong correlation is found between the number of discrete cavitation events occurring and the decrease in cell number%...

Journal: :Interactive cardiovascular and thoracic surgery 2007
Masaru Yoshikai Tsuyoshi Itoh Keiji Kamohara Junji Yunoki Hideyuki Fumoto

The skeletonized internal thoracic artery (ITA) has several advantages over a pedicled one in coronary artery bypass grafting. A skeletonized ITA, which lacks surrounding tissue, thus seems more susceptible to the mechanical force exerted by a vessel clamp than the pedicled ITA. The purpose of this study was to assess the detrimental effect of vessel clamps on the intimal integrity of the ultra...

Journal: :Aqua 2022

Abstract Tannery wastewater is a complex mixture of organic and inorganic components from various processes with high concentrations Cr, BOD, COD, TDS, strong colour pH. The goal the present work was to determine optimal solar photo-assisted electrochemical peroxidation process (SPECP) experimental conditions for treatment tannery wastewater. Experiments were conducted in bench-scale stirred ta...

2010
Vanessa Zulema S. CCAHUANA Mutlu ÖZCAN Alfredo Mikail Melo MESQUITA Renato Sussumo NISHIOKA Estevão Tomomitsu KIMPARA Marco Antonio BOTTINO

OBJECTIVE This study evaluated the surface degradation effect of acidulated phosphate fluoride (APF) gel exposure on the glassy matrix ceramics as a function of time. MATERIAL AND METHODS Disc-shaped ceramic specimens (N = 120, 10/per ceramic material) were prepared in stainless steel molds (inner diameter: 5 mm, height: 2 mm) using 6 dental ceramics: 3 indicated for ceramic-fused-to-metal (V...

2004
Geoffrey A. Tompsett Curtis Conner

Microwave zeolite synthesis has been shown to greatly reduce crystallization time. Although, fast efficient syntheses and quality crystalline products are widely reported(1), the mechanism leading to the formation of zeolites under microwave heating is not fully understood. Cundy(1) has reviewed the literature and concludes that the likely processes specific to microwave synthesis of zeolites a...

Journal: :Ultrasound in medicine & biology 1986
L A Frizzell D L Miller W L Nyborg

Ultrasonically induced microstreaming around bubbles of gas have been shown to cause damage to biological materials in vitro at clinical exposure levels. The potential for ultrasonically induced cavitation and microstreaming in mammalian systems is of interest with respect to the safe application of clinical ultrasound. Ultrasonically induced intravascular microstreaming and formation of thromb...

Journal: :The European respiratory journal 1995
L Allegra A Cogo D Legnani P L Diano V Fasano G G Negretto

It is well-known that many patients with asthma undergo clinical improvement during a stay at high altitude. At high altitude, the atmospheric and climatic conditions (such as hypoxia, cold and dry air inhalation) could modify the bronchial responsiveness in asthmatics. Our study was designed to assess the difference in bronchial responsiveness to hypotonic aerosol between sea level and high al...

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