نتایج جستجو برای: boric acid 3 ppm b
تعداد نتایج: 3048600 فیلتر نتایج به سال:
Wood-based carbon fiber derived from liquefied wood has the disadvantages of low mechanical strength and unstable performance. To improve its mechanical properties, wood-based carbon fiber precursors were impregnated with 5 wt.% and 8 wt.% boric acid solutions for 1 h and then carbonized at 900 °C for 1 h. The effect of boron content on fiber tensile strength and microstructure was investigated...
The paper is based on the development of a wood preservative without metal salts to be used in use classes 3 and 4 (EN 335), eco-friendly and harmless to humans and animals. Boric acid was used as a biocide, due to its effectiveness against fungi and insects. It is also known to be easily leached from wood exposed to weather action. Colloidal silica was therefore added in the formulations to gu...
Leaf area index (LAI), leaf area duration (LAD), crop growth rate (CGR), net assimilation rate (NAR) and above ground dry matter accumulation (AGDM) of a cultivar of chickpea (Cicer arietenum) were studied with the application of potassium naphthenate (KNap) and naphthalene acetic acid (NAA) as foliar spray in 2001-2002. The growth regulators had greater influence on plants which showed compara...
in order to study the effects of nitrogen (n), boron (b) and sulfur (s) on yield, yield components, oil and protein content of safflower (carthamus tinctorius l.) an experiment was conducted in research station, college of agriculture, shahid bahonar university of kerman, using a local variety’’ isfahan’’. a randomized complete block design with three replications was used. treatments were all ...
Bioactive compound from local resources such as anthocyanin has a high potential to develop biosensor for nitrite detection. As biosensor, this shows instability certain environmental conditions. To overcome this, bioactive may need encapsulate. The aim of work is encapsulate in the CMC-PVA matrix improve its stability paper strip sodium result that encapsulated by CMC/PVA well formed. Encapsul...
Boric acid dust has a long history as an insecticide in urban pest management, and it has been shown to be an effective alternative to conventional neurotoxic insecticides. However, dust formulations require specialized equipment and are difÞcult to apply, whereas gel and paste formulations contain large amounts of boric acid and tend to be less efÞcacious than other insecticide baits. The purp...
OBJECTIVE To compare boric acid as an effective treatment for VVC compared to fluconazole. We also studied the efficiency of these drugs in preventing recurrence of VVC. DESIGN A cross sectional, randomized, double-blind study. SETTINGS Gynaecology clinic of Imam Reza hospital, Tehran - Iran SUBJECTS Women with signs and symptoms related to Vulvo Vaginal Candidiasis. RESULTS Seventy fiv...
Boric acid is recently proved to be a good substitute for conventional acidic catalytic materials. However, few studies used boric as catalyst in biomass pyrolysis. This study focused on the effects of (BA) pyrolysis behaviors woody biomass. The birch wood flour (WF) was feedstock and treated by impregnation solution. Both untreated acid-treated samples (BW) were characterized FTIR SEM. Thermog...
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