منابع مشابه
Blister formation during graphite surface oxidation by Hummers’ method
Graphite oxide has a complex structure that can be modified in many ways to obtain materials for a wide range of applications. It is known that the graphite precursor has an important role in the synthesis of graphite oxide. In the present study, the basal-plane surface of highly annealed pyrolythic graphite (HAPG) was oxidized by Hummers' method and investigated by Raman spectroscopy and atomi...
متن کاملGraphene Oxide Synthesized by using Modified Hummers Approach
The graphite oxide was prepared by oxidizing purified natural flake graphite via modified Hummers method. The graphene oxide was prepared by graphite oxide exfoliating in distilled water with ultrasonic waves. Structural and physiochemical properties of the products were investigated with the help of ultraviolet-visible spectroscopy (UV-vis), Fourier transform infrared spectroscopy (FTIR), X-ra...
متن کاملBell palsy.
Volume 84, Number 8 www.aafp.org/afp American Family Physician 947 Bell palsy is an idiopathic, unilateral, acute paresis or paralysis of facial movement caused by dysfunction of the lower motor neuron. Up to 30 percent of persons with acute peripheral facial palsy have an alternative cause diagnosed at presentation or during the course of their facial palsy. Alternative causes are higher in ch...
متن کاملCall bell requests, call bell response time, and patient satisfaction.
Based in the center of nursing activity, the nurse call system has potential to gather basic data such as the number of calls and the response time. Analyzing this information may shed light on performance and patient satisfaction. This study used a correlational design to examine results from a patient satisfaction survey administered at discharge in relation to the number of call bell request...
متن کاملLaguerre-type Bell polynomials
We develop an extension of the classical Bell polynomials introducing the Laguerre-type version of this well-known mathematical tool. The Laguerre-type Bell polynomials are useful in order to compute the nth Laguerre-type derivatives of a composite function. Incidentally, we generalize a result considered by L. Carlitz in order to obtain explicit relationships between Bessel functions and gener...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Annals of Iowa
سال: 1883
ISSN: 0003-4827,2473-9006
DOI: 10.17077/0003-4827.11952