نتایج جستجو برای: کاهش cod

تعداد نتایج: 168713  

2013
J. Rasmus Nielsen Bo Lundgren Kasper Kristensen Francois Bastardie

Knowledge of the spatial distribution of juvenile cod is essential for obtaining precise recruitment data to conduct sustainable management of the eastern and western Baltic cod stocks. In this study, the horizontal and vertical distribution and density patterns of settled juvenile 0- and 1-group Baltic cod are determined, and their nursery areas are localised according to the environmental fac...

Journal: :Salud publica de Mexico 2011
Mary H Freire de Carvalho Gerardo Álvarez-Hernández Catalina Denman Siobán D Harlow

OBJECTIVE This paper assesses the quality of the underlying cause of death (COD) statistics in Hermosillo, Mexico in a random sample of 300 in-hospital adult deaths. MATERIAL AND METHODS A "gold standard" COD, determined by a systematic review of hospital medical charts, was compared to the COD reported by the vital registry system. RESULTS Overall agreement between the reviewer and origina...

1996
J. M. Casas J. Paz

The food and feeding of Flemish Cap cod are described for 5 years based on 3921 stomachs collected in the fishing grounds off the Flemish Cap, Newfoundland in summer 1989–1993. Feeding intensity was high but the prey spectrum was narrow in all years with hyperiids and redfish (Sebastes sp.) predominating. Squid and polychaetes had a high inter-annual variability. Juvenile cod diet was dominated...

2016
Qiang Zhang Yihan Xiong Haiyan An Konstantin Boucke Georg Treusch

Taking advantage of robust facet passivation, we unveil a laser "fossil" buried within a broad area laser diode (LD) cavity when the LD was damaged by applying a high current. For the first time, novel physical phenomena have been observed at these dramatically elevated energy densities within the nanoscale LD waveguide. The observation of the laser "fossil" is interpreted with different mechan...

2014
Deepak Sharma

The removal of COD and oil from dairy wastewater was experimentally investigated using direct current (DC) electrocoagulation (EC). In the EC of dairy wastewater, the effects of initial pH, electrolysis time, initial concentration of COD, and current intensity were examined. The COD in the aqueous phase were effectively removed when aluminum plates were used as sacrificial electrodes. The optim...

Journal: :Journal of child psychology and psychiatry, and allied disciplines 2006
Jennifer S Silk Daniel S Shaw Emily M Skuban Alyssa A Oland Maria Kovacs

BACKGROUND This study examines emotion regulation strategies used by children of mothers with childhood-onset depression (COD) and children of never-depressed mothers (NCOD). METHODS Participants were 49 COD offspring (ages 4-7) and 37 NCOD offspring (ages 4-7) and their mothers. Emotion regulation strategies were assessed observationally during a laboratory mood induction paradigm. RESULTS...

در حال حاضر استفاده از روش های ترکیبی برای رسیدن به بازده بالا در تصفیه فاضلاب ها و حذف موثر آلاینده ها بخصوص آلاینده های مقاوم مورد توجه قرار گرفته است. در این تحقیق به صورت آزمایشگاهی، فرآیند ترکیبی ازناسیون توسط ازن و اکسیداسیون بیولوژیکی توسط راکتور بیولوژیک چسبیده هوازی در حالتهای مختلف برای تصفیه فاضلاب مورد بررسی قرار گرفت. در ابتدا عملکرد راکتور بیولوژیک رشد چسبیده هوازی به تنهایی مورد ...

1987
J. Yen J. YEN

The predatory behavior of a carnivorous marine copepod, Euchaeta norvegica Boeck, feeding on eggs and larvae of the North Atlantic cod Gadus morhua L. was examined. In the laboratory, adult females of Euchaeta norvegica did not feed on eggs. Predation rates on yolk-sac larvae and starved post-yolk-sac larvae did not vary significantly with age up to 14 days old because of little change in size ...

2006
F. CINER

Some amounts of inert products are given into environment due to biological degradation of substrate in activated sludge system. The effluent of biological wastewater treatment consists of inert substrate in influent flow, soluble microbial products and non degradable or slowly degradable organic products. Soluble inert COD (SI) must be determined for discharge standards since it did not give a...

2012
Ahmad Mashal Mohammad Ahmad Farid Aiouache David Rooney

Many types of advanced oxidation processes (AOPs), namely Fenton (Fe 2+ /H2O2) with different doses, Fenton-like (UV/Fe 2+ /H2O2), photo-Fenton (Fe 2+ /H2O2/TiO2), and plasma technology have been investigated for the removal of organic matters (COD content) from landfill leachate. Fenton's oxidation was the most effective as the most effective ratio 1/10 (Fe 2+ /H2O2) which allow the COD remova...

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