نتایج جستجو برای: chemical operation

تعداد نتایج: 584268  

Journal: :iranian journal of nursing and midwifery research 0
zahra zare mehri doosti irani akram arabi ahmad mashhadizadeh farzaneh gholami motlaq hasan farahmand

background: the objectives of an educational system in a society are based on society's requirements. since personnel knowledge and skill are not qualified with the advantages of science and invention of new tools, new needs are arisen. comparing the curriculum of undergraduate course of operating room of our country with international societies, it seems that this curriculum is not a good one ...

2015
Changyan Xu Sailing Zhu Cheng Xing Dagang Li Nanfeng Zhu Handong Zhou

In this study, cellulose nanofibrils (CNFs) were successfully isolated from coconut palm petiole residues falling off naturally with chemical pretreatments and mechanical treatments by a grinder and a homogenizor. FTIR spectra analysis showed that most of hemicellulose and lignin were removed from the fiber after chemical pretreatments. The compositions of CNFS indicated that high purity of nan...

Journal: :Chemical science 2017
S Lilienthal M Klein R Orbach I Willner F Remacle R D Levine

The concentration of molecules can be changed by chemical reactions and thereby offer a continuous readout. Yet computer architecture is cast in textbooks in terms of binary valued, Boolean variables. To enable reactive chemical systems to compute we show how, using the Cox interpretation of probability theory, one can transcribe the equations of chemical kinetics as a sequence of coupled logic...

Journal: :Journal of Engineering Science 2023

Mathematical modeling of the operation processes automotive engine oils allows to optimize time their use during operation. A certain significance for changing qualitative properties motor is introduced by such an operational indicator as „waste” oil consumption. The article describes causes and parameters consumption, well mathematical model changes in physico-chemical one that will allow us p...

2001
ANDREAS HIERLEMANN

Microfabrication processes for chemical and biochemical sensors are reviewed. Standard processing steps originating from semiconductor technology are detailed, and specific micromachining steps to fabricate three-dimensional mechanical structures are described. Fundamental chemical sensor principles are briefly abstracted and corresponding state-of-the-art examples of microfabricated chemical s...

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