نتایج جستجو برای: removal methods
تعداد نتایج: 1991906 فیلتر نتایج به سال:
chemical wastewater treatment is one of the attracting and common methods for wastewater treatment among the currently employed chemical unit processes. the use of coagulant-flocculant compound is one of the efficient methods for separating of paint and recovery of water. in this research, it was introduced and the effect of ph on removal of solid content from solution was studied experimentall...
background and aims: nowadays heavy metals are the environmental priority pollutants and are becoming as the most serious environmental problems. in recent years removing those from diverse industrial effluents and metal cleaning have been studied. the aim of the present study was to investigate the different methods for cooper removal of cooper ions from industrial wastewater. methods: this st...
an efficient method was employed for the ash and pyrite sulphur removal from bitumen using column flotation process. the bitumen samples containing 9.6% sulphur (6.81% in the pyrite sulphur form) and 26.4% ash were successfully showed up to 75.20% of pyrite sulphur (e.g.; 51.66% of total sulphur) and 70.81% of ash removal. the box-behnken design (bbd) was employed to design the experiments, to ...
in reality, most structures involved in geotechnical engineering are three dimensional in nature, and although in many, plane strain or axisymmetric approximations are reasonable, there are some, for which 3-d treatment is required. the quantity of data, and the size of the various vectors and matrices involved in such analysis, increase dramatically. this has sever implications for computer r...
OBJECTIVE To present efficacy, safety, and bleeding profile results from the clinical trials that supported the U.S. Food and Drug Administration filing for the approval of a single-rod etonogestrel (ENG) contraceptive implant (Implanon). DESIGN Integrated analysis of 11 international clinical trials. SETTING Contraceptive clinics in U.S., Chile, Asia, and Europe. PATIENT(S) A total of 94...
We intend to begin offering Entonox (a medical anaesthetic gas comprising 50% nitrous oxide and 50% oxygen) as an analgesic choice for women attending for intrauterine device (IUD) fittings or difficult removals in our community contraception clinics. Entonox is already used for short-term pain relief in the community by district nurses and midwives, and in the hospital emergency and obstetric ...
To cite: Dickson J, Hoggart L, Newton VL. J Fam Plann Reprod Health Care 2014;40:158–160. THE PROBLEM The etonogestrel contraceptive implant (Implanon, Nexplanon) is widely recognised as a reliable and cost-effective form of contraception. However, continuation rates are of concern as the method loses cost effectiveness when discontinued early. It has been calculated that 60% of implant removal...
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