نتایج جستجو برای: 900 and 1300 ppm
تعداد نتایج: 16833158 فیلتر نتایج به سال:
An environment is a set of name-value bindings, maintained for a particular user, tha t are provided to a process at runtime. This can provide a great deal of flexibility in tai loring the behavior of programs to a particular user's preferences. It can also serve as a simple me ans of interprocess communication. To be useful, however, the environment must take into ac count the natural structur...
Mechanical Properties and Microstructure of Al–Sc with Rare-Earth Element or Al2O3 Additions Richard Albert Karnesky, Jr. Aluminum alloys strengthened with coherent (L12), nanosize Al3Sc precipitates are structural materials that have outstanding strength at ambient and elevated temperatures. They are creep resistant at 300 ◦C and exhibit a threshold stress, below which creep is not measurable....
SnO2 nanowires were prepared on bare oxidized silicon, Au and SnO2 coated substrates by thermal evaporation of tin grains in argon atmosphere at 900°C. X-ray diffraction (XRD) and field-emission scanning electron microscopy (FE-SEM) were used to characterize the SnO2 nanowires. FE-SEM images indicated that the size of SnO2 nanowires depend on the type of substrate. Gas sensor was fabricated by ...
A rhyolite glass containing about 300 ppm by weight of H'O was heated in a microscope heating stage to 1300 oC, and true infrared absorbance spectra were obtained in situ at various temperatures using an FTIR spectrometer, together with the focusing optics of an IR microscope. Virtually all HrO dissolved as OH at all temperatures. However, large changes both in band shape and integral extinctio...
Hidroponik cara bercocok tanam tidak menggunakan tanah sebagai media tanam, tetapi air mengandung nutrisi yang diperlukan tanaman. Salah satu jenis tanaman hidroponik adalah bayam dapat tumbuh berkembang pada suhu >25⁰C dan memerlukan antara 410 – 900 ppm. Adakalanya pemilik berada di area penanaman sehingga sempat melakukan pemberian tersebut. Sistem ini dibuat untuk monitoring kondisi air,...
The study was conducted to understand the influence of herbicide on changes in physiology and biochemical properties purple nutsedge weed (Cyperus rotundus L.). Laboratory pot culture were at Department Agronomy, Tamil Nadu Agricultural University, Coimbatore during 2020-21. Glyphosate tested with different concentrations (500, 600, 700, 800, 900 1000 ppm) various soaking duration (6, 12, 24 48...
1Department of Nutrition and Dietetics, Buffalo State College, A263 Buckham Hall 1300 Elmwood Avenue, Buffalo, NY 14222-1095, USA 2106 Steuben Drive, Guilderland, NY 12084, USA 3Associate Professor, Department of Nutrition and Dietetics, Buffalo State College, A255 Buckham Hall, 1300 Elmwood Avenue, Buffalo, NY 14222-1095, USA 4Bridget Zimmerman, Manager of Research and Evaluation, SUNY Buffalo...
Whole-rock geochemical data on basaltic to rhyolitic samples from 12 volcanic centers are used to constrain the role of continental crust in the genesis of magmas formed beneath the anomalously wide subduction-related volcanic arc in Ecuador. Relatively homogeneous, mantle-like, isotopic compositions across the arc imply that the parental magmas in Ecuador were produced largely within the mantl...
بررسی تنوع گونه ای درختان، یکی از مطالعات مهم اکولوژی به شمار می رود. رودخانه شیرین رود به عنوان یکی از شاخه های اصلی رود تجن در جنگل های کوهستانی هیرکانی در استان مازندران جریان دارد. امتداد اصلی این رودخانه، شمالی-جنوبی است و دره های عمیق آن باعث ایجاد پوششی غنی در دو سمت شرقی و غربی شده است. با این فرض که خُرد اقلیم ایجاد شده توسط رود بر تنوع درختی موجود تأثیرگذار است در سال 1390، در قطعه ای ...
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