نتایج جستجو برای: h3bo3

تعداد نتایج: 184  

Journal: : 2023

In the present study, drought tolerance potential of chickpea (Cicer arietinum L.) and lentil (Lens culinaris Medik.) seeds under different boron (B) levels were assessed. One (Azkan) one cultivar (Sahan) selected for genetic material. To provide condition, level polyethylene glycol solution (PEG 6000) was applied to seeds. Germination experiments performed PEG-induced stress create water poten...

Journal: : 2022

The article presents the results of studying effect modifying additives CaAl2O4 (CA) and CaAl4O7 (CA2), as well boric acid on processes phase formation clinker minerals. calculation content raw materials in charge is carried out taking into account production high-alumina with participation Al2O3 71–72 wt.% CaO 27–28 wt.%. In accordance state diagram CaO–Al2O3 system, mass amount accumulates tw...

Journal: : 2022

Amaç: Bu prospektif randomize klinik çalışmanın amacı, gömülü mandibular 3. molar dişlerin cerrahi çekimleri sonrası oluşan ağrı, ödem, trismus miktarları ve operasyon sahası iyileşmesi üzerine farklı içeriğe sahip gargara kullanımının etkilerini araştırmaktı. Gereç Yöntemler: Yaşları 18 ile 47 arasında değişen, Pederson zorluk indeksine göre orta zorlukta dişlere sahip, 60 katılımcı çalışmaya ...

In this article,the dissolution of Boric acid in different temperature conditions, with density functional theory (DFT) is studied.  the Boric acid with chemical formula H3BO3 (sometimes written B(OH)3), and exists in the form of colorless crystals or a white powder that dis...

ژورنال: نانو مواد 2011
امیرعلی یوزباشی بهزاد امینی‌کیا سید علی طیبی‌فرد

نانوکامپوزیت­های TiB2-TiC، امروزه به عنوان یکی از عمده­ترین مواد در ساخت ابزار­های برش و پوشش­های مقاوم به سایش مورد توجه قرار گرفته­اند. روش SHS به عنوان یکی از متداول­ترین و با صرفه­ترین روش­ها جهت ساخت کامپوزیت فوق مطرح است که می­تواند با یک مرحله عملیات پیش آسیاکاری نیز همراه گردد. در تحقیق حاضر از دو فرمولاسیون شیمیایی متفاوت شامل (Ti+B4C) و (TiO2+H3BO3+Mg+C) جهت دستیابی به ترکیب یاد شده ا...

In this research, solid state carbothermal synthesis of HfB2 Nano powders was investigated. For this purpose, HfO2,H3BO3, carbon active or phenolic resin were used as raw materials for carbothermal reaction. After 2-4 hours of milling the raw materials by a planetary ball in an ethanol media, the mixture was heat dried and pressed in to disks under pressure of 20-30 bar. The disks were then pla...

Journal: :Trends in Sciences 2022

Sodium superoxide loaded phosphovanadate based glass systems were prepared from a mixture of vanadium pentoxide (V2O5), phosphorus (P2O5) boric acid (H3BO3) and sodium (NaO2) using melt-quenching method. Amorphous phase as-prepared system confirmed XRD technique. Surface morphology studied scanning electron microscope. Ultraviolet-visible spectroscopy was employed to extract complex optical par...

Journal: :Applied sciences 2022

Recycled recovered wood, for example, from historic buildings, containing biocides, fire retardants or anti-weather paints is an attractive material manufacturing composite wood panels which can be used decoration as well load-bearing walls with a typical patina. This paper investigates the effect of four inorganic preservatives—CuSO4·5H2O, ZnCl2, H3BO3 and (NH4)2SO4—commonly in past, focus on ...

Journal: :Materials 2023

This paper studies the influence of B2O3 on structure, properties and antibacterial abilities sol-gel-derived TiO2/TeO2/B2O3 powders. Titanium(IV) butoxide, telluric(VI) acid boric were used as precursors. Differences observed in degree decomposition Ti butoxide presence H3BO3 H6TeO6 acids. The phase transformations obtained gels temperature range 200–700 °C investigated by XRD. Composite mater...

Journal: :Black sea journal of engineering and science 2021

Bu çalışmanın amacı, ayçiçeği hatlarının demir beslenme kabiliyetleri yönünden gruplandırılması ve bu hatların en iyi özelliklerinin belirlenmesidir. amaçla, 445 g kuvars kumu ortamına % 5,6 CaCO3 olacak şekilde her saksıya 25 uygulanmıştır. Denemede pH’sı 6,0’a ayarlı demirsiz besin çözeltisi aşağıdaki konsantrasyonlarda hazırlanmıştır. 0,75 mM K2SO4; 2,0 Ca(NO3)2.4H2O; 1,0 MgSO4.7H2O; 0,25 KH...

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