نتایج جستجو برای: suspensions

تعداد نتایج: 14894  

2002
J. P. Huang K. W. Yu

When a strong electric field is applied to a colloidal suspension, it may cause an aggregation of the suspended particles in response to the field. In the case of a rotating field, the electrorotation (ER) spectrum can be modified further due to the local field effects arising from the many-particle system. To capture the local field effect, we invoke the Maxwell-Garnett approximation for the d...

Journal: :Journal of colloid and interface science 2000
Zhang Tan Neoh Tien

Electrofiltration of hydrosols in fixed-bed filters was studied experimentally. The experimental variables examined included media type, electric field strength, and suspension pH values. The extent of particle removal was found to improve with the application of the electric field, and lower pH values favor particle collection. The filtrate quality displayed the transient behavior of increasin...

Journal: :journal of lasers in medical sciences 0
reza fekrazad department of dentistry, aja university of medical sciences — laser research center, faculty of dentistry, tehran university of medical sciences, tehran, iran hadi zare periodontic department, faculty of dentistry, tehran university of medical sciences, tehran, iran sara mohammadi sepahvand operative dentistry department, faculty of dentistry, tehran university of medical sciences, tehran, iran parisa morsali aja university of medical sciences, tehran, iran

introduction: the a im of this study is the evaluation of the effect of antimicrobial photodynamic therapy with radachlorin on staphylococcus aureus and escherichia coli. new windows are open in the antimicrobial field so-call photodynamic therapy that incorporates a nonpoisonous photosensitizer (ps) with innocuous special wavelength photons to excite the ps. methods: two strains of bacteria us...

Journal: :iranian journal of pharmaceutical sciences 0
n suresh assistant professor, department of pharmaceutics, sri k.v. college of pharmacy, chickballapur, karnataka, india bs ashok kumar department of pharmacognosy as kiran department of pharmaceutical chemistry n narayana swamy department of pharmaceutical chemistry d sheshadri shaker department of pharmacology, sri k.v. college of pharmacy, chickballapur, karnataka, india kv satish department of pharmaceutics

an oral suspension could a suitable dosage form for the geriatric patients. the calcium alginate coated ion exchange resinate of propranolol hydrochloride were prepared using amberlite ir-120 by solvent evaporation. microcapsules of propranolol hydrochloride resinate were prepared by solvent evaporation technique,the suspensions were prepared by using deionised water as the vehicle. methyl cell...

2013
David Saintillan Michael J. Shelley

Mots-clés : Suspension active Théorie cinétique Micro-organismes nageants Interactions hydrodynamiques Instabilité Active suspensions, such as suspensions of self-propelled microorganisms and related synthetic microswimmers, are known to undergo complex dynamics and pattern formation as a result of hydrodynamic interactions. In this review, we summarize recent efforts to model these systems usi...

Journal: :Environmental pollution 2011
Nanna B Hartmann Inmaculada M Buendia Jimmy Bak Anders Baun

In this study, aged aqueous suspensions of C(60) (nC(60)) were investigated in the respirometric OECD test for ready biodegradability. Two suspensions of nC(60) were prepared by stirring and aged under indirect exposure to sunlight for 36 months. ATR-FTIR analyses confirmed the presence of C(60)-structures in the suspensions. Samples of the nC(60) suspensions (20mg/l) were inoculated with activ...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2005
A N Rissanou D Vlassopoulos I A Bitsanis

Dense suspensions of multiarm star polymers are known to develop liquidlike microstructure, which has been attributed to the similarities between high functionality stars and colloidal particles interacting via soft, long ranged potentials. Recent experimental studies reported a counterintuitive solidification of suspensions with f=128 , upon increase of the temperature in marginal solvents. We...

2016
Mihaela Friciu Sarra Zaraa V Gaëlle Roullin Grégoire Leclair

The objective of this study was to evaluate the stability of diazoxide in extemporaneously compounded oral suspensions. Oral suspensions of diazoxide 10 mg/mL were prepared from either bulk drug or capsules dispersed in either Oral Mix or Oral Mix Sugar Free. These suspensions were stored at 5°C and 25°C/60%RH in bottles and oral syringes for a total of 90 days. At predetermined time intervals,...

2005
Habauka M Kwaambwa

The stability of barium carbonate (BaCO3) suspensions in the presence of the dispersants, xanthan gum, sodium carboxymethylcellulose and carrageenan, has been studied using a phase separation technique. These materials have been found to stabilise the BaCO3 suspensions by increasing the viscosity of the medium. Of the three polymer dispersants, xanthan gum is the most effective in stabilising a...

Journal: :ACS nano 2010
So-Ryong Chae Appala R Badireddy Jeffrey Farner Budarz Shihong Lin Yao Xiao Mathieu Therezien Mark R Wiesner

Properties of nanomaterial suspensions are typically summarized by average values for the purposes of characterizing these materials and interpreting experimental results. We show in this work that the heterogeneity in aqueous suspensions of fullerene C(60) aggregates (nC(60)) must be taken into account for the purposes of predicting nanomaterial transport, exposure, and biological activity. Th...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید