نتایج جستجو برای: just as silicon

تعداد نتایج: 5737340  

Journal: :Bulletin of Materials Science 1996

Journal: :journal of nanostructures 2013
m. zahedifar m. farangi m. h. pakzamir

germanium nanowires (genws) were synthesized using chemical vapor deposition (cvd) based on vapor–liquid–solid (vls) mechanism with au nanoparticles as catalyst and germanium tetrachloride (gecl4) as a precursor of germanium. au catalysts were deposited on silicon wafer as a thin film, firstly by sputtering technique and secondly by submerging the silicon substrates in au colloidal solution, wh...

1993
John Lazzaro John Wawrzynek M. Mahowald Massimo Sivilotti

Several research groups are implementing analog integrated circuit models of biological auditory processing. The outputs of these circuit models have taken several forms, including video format for monitor display 1,2], simple scanned output for oscilloscope display 3], and parallel analog outputs suitable for data-acquisition systems 4]. In this paper, we describe an alternative output method ...

حکیمه نورانی, , رضا ثابت داریانی, , عبدالله مرتضی علی, ,

  Porous silicon (PS) layers come into existance as a result of electrochemical anodization on silicon. Although a great deal of research has been done on the formation and optical properties of this material, the exact mechanism involved is not well-understood yet.   In this article, first, the optical properties of silicon and porous silicon are described. Then, previous research and the prop...

2014
Richard C. Jaeger Mohammad Motalab Safina Hussain Jeffrey C. Suhling

Under the proper orientations and excitations, the transverse output of rotationally symmetric four-contact van der Pauw (VDP) stress sensors depends upon only the in-plane shear stress or the difference of the in-plane normal stresses on (100) silicon. In bridgemode, each sensor requires only one four-wire measurement and produces an output voltage with a sensitivity that is 3.16 times that of...

2014
TAMÁS BÁNYAI Tamás Bányai

The customer oriented market leaded to the growth of complexity of production and service processes. This growing complexity has increased the required logistics operations and leaded to the appearance of global supply chain strategies. There are several supply strategies, which are based on just-in-time philosophy and they are core tools of leaning. One of these JIT-based supply strategies is ...

2013
Shagufta Rather Tejit Singh

The aim of the study was to compare the outcome of external DCR with and without stenting with silicon tube and analyse the results of silicon intubation whether it improves the overall success rate of DCR. Success rate for external DCR without STI was 80% in our study .Success rate for DCR with STI rose to 92%.Therefore DCR with STI is a highly successful procedure with a success rate of over ...

Drought is a major factor that limiting plant growth. Mycorrhizal fungi can modified and improved water relation and drought stress with phosphorus and water absorption. In the other hand,Silicon is known as a positive factor that improved water and soil relation and reducing biotic and abiotic stress in some plants and resistant them against stress. Since the cucumber plants in earl...

Journal: :Nanotechnology 2008
Cristiano Albonetti Javier Martinez Nuria S Losilla Pierpaolo Greco Massimiliano Cavallini Francesco Borgatti Monica Montecchi Luca Pasquali Ricardo Garcia Fabio Biscarini

We investigate the fabrication of nanometric patterns on silicon surfaces by using the parallel-local anodic oxidation technique with soft stamps. This method yields silicon oxide nanostructures 15 nm high, namely at least five times higher than the nanostructures made with local anodic oxidation using atomic force microscopy, and thanks to the size of the stamp enables one to pattern the surfa...

2015
Quan Li Zhen Tian Xueqian Zhang Ranjan Singh Liangliang Du Jianqiang Gu Jiaguang Han Weili Zhang

Controlling the propagation properties of the terahertz waves in graphene holds great promise in enabling novel technologies for the convergence of electronics and photonics. A diode is a fundamental electronic device that allows the passage of current in just one direction based on the polarity of the applied voltage. With simultaneous optical and electrical excitations, we experimentally demo...

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