نتایج جستجو برای: commercial sample

تعداد نتایج: 539333  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...

Journal: :Public Health Nutrition 2021

Abstract Objective: To analyse the information on health claims present in labelling of creatine monohydrate (CM) products. Design: A descriptive study a selection products marketed as CM, with claims, and that met inclusion/exclusion criteria, was conducted using Amazon Google Shopping websites. The adequacy compliance were evaluated European legislative requirements (European Food Safety Auth...

2015
T Takoudes B Hamar

Numerous studies have validated the accuracy of non-invasive prenatal testing (NIPT) using fetal cell-free DNA (cfDNA) to assess the risk of fetal aneuploidies early in pregnancy1, and we have used this technology in our practice since 2012 in both lowand high-risk women2. We are aware that several factors influence the fraction of fetal cfDNA present in maternal blood. Such factors include ges...

1998
William Greene

We examine three models for sample selection that are relevant for modeling credit scoring by commercial banks. A binary choice model is used to examine the decision of whether or not to extend credit. The selectivity aspect enters because such models are based on samples of individuals to whom credit has already been given. A regression model with sample selection is suggested for predicting e...

2011
Dietmar Wahl Michael Mertens

It is a well-known problem in molecular beam epitaxy (MBE) that the real sample temperature is in most cases unknown during the growth process. We have used a commercial band-edge absorption spectroscopy system to determine the sample temperature during bake-out and growth of different types of samples. Time-resolved in-situ measurements show how the sample temperature is influenced by differen...

2014
Michael Volný Joelle Rolfs Bejan Hakimi Petr Fryčák Thomas Schneider Dingsheng Liu Gloria Yen Daniel T. Chiu František Tureček

We report a microfluidic device, using segmented flow in a two-phase system of immiscible liquids, which delivers aqueous droplets into a modified commercial mass spectrometer. The interface coupling the microfluidics to the mass spectrometer achieves up to 96% sample transfer efficiency to the vacuum chamber. Sample ionization is assisted by multipass infrared laser beam in the interface. The ...

2010
N. Blaž A. Marić G. Radosavljević L. Živanov G. Stojanović W. Smetana

This paper presents modeling of the complex permeability spectra, fabrication and a wide frequency range characterization of a toroidal LTCC ferrite sample. A commercial ferrite tape ESL 40012 is used, and standard LTCC (Low Temperature Co-fired Ceramic) processing has been applied to the sample fabrication. The characterization was performed using a short coaxial sample holder and a vector net...

Journal: :سیاست گذاری پیشرفت اقتصادی 0
حسین اصغرپور علی وفامند

the price of oil plays an important role in the global economy and is an important factor influencing the government and commercial sectors. because of increasing importance of oil in financial markets, oil price predictions have always been an important subject for the researchers in economics, and other economic agents. this paper tries to study the behavior of crude oil prices based on smoot...

Abolfazl Movafagh, Eznollah Azargashb Hassan Heydary Seyed AbdolReza Mortazavi-Tabatabaei

Phytohemagglutinin (PHA) is a lectin, obtained from the red kidney bean that binds to the membranes of T-cells and stimulates metabolic activity, cell division, etc. The object of this research was the comparison between self made PHA (Indigenous) and imported commercial one, following conventional and High Resolution Cell Synchronization technique (HRCS) .From each blood sample of healthy indi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1388

چکیده: فرض کنید که تابعی از اپسیلون یک مجموع نامتناهی از احتمالات موزون مربوط به مجموع های جزئی براساس یک دنباله از متغیرهای تصادفی مستقل و همتوزیع باشد، و همچنین فرض کنید توابعی مانند g و h وجود دارند که هرگاه امید ریاضی توان دوم x متناهی و امیدریاضی x صفر باشد، در این صورت می توان حد حاصلضرب این توابع را بصورت تابعی از امید ریاضی توان دوم x نوشت. حالت عکس نیز برقرار است. همچنین ما با استفاده...

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