نتایج جستجو برای: freestanding nano
تعداد نتایج: 52348 فیلتر نتایج به سال:
OBJECTIVE To compare maternal and neonatal birth outcomes and morbidities associated with the intention to give birth in two freestanding midwifery units and two tertiary-level maternity units in New South Wales, Australia. DESIGN Prospective cohort study. PARTICIPANTS 494 women who intended to give birth at freestanding midwifery units and 3157 women who intended to give birth at tertiary-...
The slow hydrogenation/dehydrogenation kinetics and high thermodynamic stability of the Mg–H bond are two major limitations for large-scale utilization MgH2. In this review, we introduce catalytic mechanism 3d 4d transition metal (TM) on hydrogen sorption properties Mg/MgH2. relative contribution interatomic interactions to TM-substituted MgH2 system is discussed. A synergy effect between elect...
In this paper we discuss the potential role capital markets will play in health care restructuring. According to theory, agency costs, asymmetric information and strategic interactions cause the cost of capital for nonprofit entities to slope upward. Freestanding nonprofits are particularly disadvantaged in this regard. We conclude that some organizational forms will be less viable due to probl...
Microsupercapacitors are touted as one of the promising "next frontiers" in energy-storage research and applications. Despite their potential, significant challenges still exist in terms of physical properties and electrochemical performance, particularly attaining high energy density, stability, ease of synthesis, and feasibility of large-scale production. We present new freestanding microporo...
در این رساله، روشهای احیایی نوین، بسیار موثر و سبز با استفاده از سدیم سیانو بوروهیدرید برای احیای گروههای عاملی کربونیلی، نیترو و اکسیم به صورت زیر ارائه می شود: - احیای ترکیبات کربونیلی با استفاده از nabh3cn در حضور nano fe3o4/h2so4 در دمای اتاق و شرایط بدون حلال - احیای ترکیبات کربونیلی با استفاده از nabh3cn در حضور nano fe3o4@sio2/h2so4 در دمای اتاق و شرایط بدون حلال - احیای ترکیبات کربون...
N.O. Schiller and A. Caramazza (2003) and A. Costa, D. Kovacic, E. Fedorenko, and A. Caramazza (2003) have argued that the processing of freestanding gender-marked morphemes (e.g., determiners) and bound gender-marked morphemes (e.g., adjective suffixes) during syntactic encoding in speech production follows distinct principles, with only freestanding morphemes being subject to a competitive se...
Knowledge of and control over the curvature of ripples in freestanding graphene are desirable for fabricating and designing flexible electronic devices, and recent progress in these pursuits has been achieved using several advanced techniques such as scanning tunnelling microscopy. The electrostatic forces induced through a bias voltage (or gate voltage) were used to manipulate the interaction ...
In this work, high quality GaN crystal was successfully grown on C-face 6H-SiC by HVPE using a two steps growth process. Due to the small interaction stress between the GaN and the SiC substrate, the GaN was self-separated from the SiC substrate even with a small thickness of about 100 μm. Moreover, the SiC substrate was excellent without damage after the whole process so that it can be repeate...
در سالهای اخیر تلاش زیادی برای سنتز کمپلکس های سوپرامولکول و پلیمرهای کوئوردیناسیونی بر مبنای لیگاندهای آلی چند دندانه شده است. این مواد به دلیل داشتن خواص منحصر به فرد، کاربردهای زیادی در صنعت دارند. سنتز پلیمرهای کوئوردیناسیونی جدید از سرب(ii) در ابعاد بالک(توده) و نانو با استفاده از روش گرادیان دمایی و به روش شاخه جانبی صورت گرفته و با روش طیف سنجی ir و پایداری گرمایی آن ها توسط آنالیزهای وز...
Diffusion and conformational dynamics of single semiflexible and flexible macromolecules and colloids adhereing to freestanding lipid membranes is a challenging problem both from the experimental and theoretical standpoint. Using cationic supergiant unilamellar vesicles [1] as an experimental platform for mimicking freestanding lipid membrane in combination with single-molecule fluorescence vid...
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