نتایج جستجو برای: cd
تعداد نتایج: 47384 فیلتر نتایج به سال:
Descriptions of nutritional deficiencies in literature are mostly based on agricultural crops. As every plant variety reacts very individually on deficiency or excess of nutrients, there is still a large lack of information on horticultural products. For this reason many vegetable and pot plant varieties have been tested on symptoms of nutritional deficiencies by selective fertilisation at the ...
Description of the Gari-Coter project for the development of the necessary linguistic resources in Galician for a multilingual query re-elaborator.
This paper presents an empirical validation of the Abstract Tasks (ATs), which are operational guidelines driving the inspection activities during a usability evaluation. Two groups of inspectors evaluated a multimedia CD-ROM, one group using the ATs, the other group using a list of heuristics. Results demonstrated a better performance of the AT group but raised some issues concerning the accep...
Three MEDLINE-on-CD-ROM interfaces are compared: SPIRS (version 3.11) and WinSPIRS (version 1.0) from SilverPlatter and OVID (version 3.0, DOS and Windows interfaces) from CD Plus Technologies. Though the database is the same, there are substantial differences among the interfaces in the way these data are presented and can be searched. These different approaches are discussed, and a detailed c...
A method for determining the photo excitation reaction cross section of at gamma energy is investigated. HPCe detector used to measure absolute activity induced, producing a practical value calculating average section. Which found be (0.6683) ub matching expected theoretical value.
 This work may considered pioneer measurements such – section.
 Key words: Activity induced,Cross sectio...
بسیاری از آفت کش های کایرال به صورت مخلوط راسمیک به محیط وارد می شوند، علی رغم این حقیقت که فعالیت آفت کشی یک آفت کش کایرال، نتیجه واکنش پذیری بیشتر فقط یک انانتیومر است و این در حالی است که انانتیومر دیگر آن، دارای تاثیرات سمی علیه موجودات زنده غیر هدف می باشند. با توجه به این که تخریب میکروبی و مسیر های متابولیکی آفت کش های کایرال فضاگزین می باشد, کاربرد آفت کش های راسمیک معمولا به تجمع نامطل...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید