يعرض 201 - 220 نتائج من 1,306 نتيجة بحث عن '(( 10 i decrease ) OR ( 5 ((((step decrease) OR (teer decrease))) OR (mean decrease)) ))', وقت الاستعلام: 0.17s تنقيح النتائج
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    Collision/reaction cell ICP-MS with shielded torch and sector field ICP-MS for the simultaneous determination of selenium isotopes in biological matrices حسب Al-Saad, Khalid A.

    منشور في 2011
    "…The determinations of selenium isotopes in biological samples were performed using both inductively coupled plasma collision/reaction cell quadruple mass spectrometer (CRC-ICP-QMS) and inductively coupled plasma sector field mass spectrometers (SF-ICP-MS). To significantly decrease the argon-based interferences at m/z 74 (36Ar38Ar), 76 ( 38Ar38Ar, 40Ar36Ar), 78 ( 38Ar40Ar), and 80 (40Ar40Ar), the gas-flow rates of a helium and hydrogen mixture used in the collision cell were optimized to 1.0 mL/min H2 and 3.5 mL/min He. …"
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    Urology Residents' Perspectives on the In-House On-Call Systems: A Study in an Accredited Academic Center حسب Khalil, Ibrahim A. and Ibrahim, Tarek and Aldeeb, Maya and Mohamed, Ahmed and Ben Salah, Rym and Aboumarzouk, Omar M. and Al-Naimi, Abdulla

    منشور في 2022
    "…Working hours: compliance and violations There was no significant difference in the mean weekly working hours (p = 0.1). However, the total number of duty hours violations decreased in the 12-hour on-call system. …"
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  6. 206

    Hydrogen Production via Ethanol Decomposition over Bimetallic Catalyst حسب Ashok, Anchu

    منشور في 2016
    "…The reaction between NH3 and HNO3 released during decomposition of glycine and metal nitrate respectively produces the energy required for single step combustion synthesis. At higher value of φ, the reactive medium generates H2 rich reducing environment to convert metal oxide to metallic form Bimetallic CuCo were synthesized from the aqueous solution of cobalt nitrate (Co(NO3)2·6H2O), copper nitrate (Cu(NO3)2·6H2O) and glycine (C2H5NO2) in solution combustion synthesis (SCS) method using a fuel to oxidizer ratio of φ 0.5, 1, 1.75 and 2.5. …"
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    Simulation and Optimization of an LNG Plant Cold Section حسب Katebah, Mary Anna

    منشور في 2018
    "…Among all the available cycles, the propane pre-cooled mixed refrigerant (C3MR) system is the leading one in the LNG industry. Therefore, this research focuses on decreasing the energy consumption of C3MR and NGL recovery system with helium extraction (producing approximately 60 mol% crude helium) and nitrogen rejection units. …"
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    Swimming exercise improves short- and long-term memories: Time-course changes حسب Alomari, Mahmoud A.

    منشور في 2021
    "…Young adult Wistar rats were tested for both short-term and long-term memories using the radial arm water maize (RAWM) paradigm following 0, 1, 7, 14, and 28 days of swimming exercise training (60 min per day, 5 days/week)s. The mean total errors on RAWM during the learning phase and memory testing remained the same (p > 0.5) after 1 day of swimming exercise. …"
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