international journal of nano dimension最新文献_第9页

Representation of the temperature nano-sensors via cylindrical gate-all-around Si-NW-FET 用圆柱形栅极全硅- nw场效应管表示温度纳米传感器

IF 1.5

international journal of nano dimension Pub Date : 2015-10-01 DOI: 10.7508/IJND.2015.04.006

Seyed Ali Sedigh Ziabari

{"title":"Representation of the temperature nano-sensors via cylindrical gate-all-around Si-NW-FET","authors":"Seyed Ali Sedigh Ziabari","doi":"10.7508/IJND.2015.04.006","DOIUrl":"https://doi.org/10.7508/IJND.2015.04.006","url":null,"abstract":"In this paper, the temperature dependence of some characteristics of cylindrical gate-all-around Si nanowire field effect transistor (GAA-Si-NWFET) is investigated to representing the temperature nano-sensor structures and improving their performance. Firstly, we calculate the temperature sensitivity of drain-source current versus the gate-source voltage of GAA-Si-NWFET to propose the temperature nano-sensor circuit. Then the solutions of increasing current temperature sensitivity are discussed by investigating the effects of the oxide thickness and the channel diameter on this parameter. Secondly, in this study, we demonstrate the temperature dependence of the transconductance (gm) and output resistance (ro) of the GAA-Si-NWFET. We have proposed the amplifier circuit as a temperature sensor based on the temperature dependence of these parameters. In addition, we have changed the channel diameter and the oxide thickness to increase the temperature sensitivity of gm and subsequently, temperature sensitivity of proposed sensor. Ultimately, the effects of channel diameter and oxide thickness on the temperature sensitivity of gm will be analytically investigated.","PeriodicalId":14081,"journal":{"name":"international journal of nano dimension","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81215481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Preparation of Deferasirox in nano-scale by ultrasonic irradiation and optimization the amount and reaction time parameters 超声辐照法制备去铁精，并对其用量和反应时间进行了优化

IF 1.5

international journal of nano dimension Pub Date : 2015-10-01 DOI: 10.7508/IJND.2015.04.004

Marzieh Khatamifar, Z. R. Ranjbar, S. Fatemi

引用次数: 5

Template synthesis and characteristics of nanoparticle MgO 纳米氧化镁模板合成及表征

IF 1.5

international journal of nano dimension Pub Date : 2015-10-01 DOI: 10.7508/IJND.2015.04.013

A. Bagheri, Z. Mirjani, Kahaki

引用次数: 1

Scanning hall probe microscopy technique for investigation of magnetic properties 用于研究磁性质的扫描霍尔探针显微技术

IF 1.5

international journal of nano dimension Pub Date : 2015-10-01 DOI: 10.7508/IJND.2015.04.001

Z. Sobat, S. S. Hassani, M. Ahangari, S. Kiani, A. Mehdizadeh

引用次数: 0

Study of the flexural sensitivity and resonant frequency of an inclined AFM cantilever with sidewall probe 带侧壁探头的倾斜AFM悬臂梁的弯曲灵敏度和谐振频率研究

IF 1.5

international journal of nano dimension Pub Date : 2015-10-01 DOI: 10.7508/IJND.2015.04.003

M. Abbasi

{"title":"Study of the flexural sensitivity and resonant frequency of an inclined AFM cantilever with sidewall probe","authors":"M. Abbasi","doi":"10.7508/IJND.2015.04.003","DOIUrl":"https://doi.org/10.7508/IJND.2015.04.003","url":null,"abstract":"The resonant frequency and sensitivity of an atomic force microscope (AFM) cantilever with assembled cantilever probe (ACP) have been analyzed and a closed-form expression for the sensitivity of vibration modes has been obtained. The proposed ACP comprises an inclined cantilever and extension, and a tip located at the free end of the extension, which makes the AFM capable of topography at sidewalls of microstructures. Because the extension is not exactly located at one end of the cantilever, the cantilever is modeled as two beams. In this study, the effects of the interaction stiffness and damping, and also some geometrical parameters of the cantilever on the resonant frequencies and sensitivities are investigated. Afterwards, the influence of the interaction stiffness and damping, and the geometrical parameters such as the angles of the cantilever and extension, the connection position of the extension and the ratio of the extension length to the cantilever length on the sensitivity and resonant frequency are investigated. The results show that the greatest flexural modal sensitivity occurs at a small contact stiffness of the system, when the connection position and damping are also small. The results also indicate that at low values of contact stiffness, an increase in the cantilever slope or a decrease in the angle between the cantilever and extension can rise the resonant frequency while reduces the sensitivity.","PeriodicalId":14081,"journal":{"name":"international journal of nano dimension","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86656627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of the heat transfer rate increases in retention pools nuclear waste 核废料蓄热池中传热速率增加的评价

IF 1.5

international journal of nano dimension Pub Date : 2015-10-01 DOI: 10.7508/IJND.2015.04.007

D. Ganji, M. Peiravi, M. Abbasi

{"title":"Evaluation of the heat transfer rate increases in retention pools nuclear waste","authors":"D. Ganji, M. Peiravi, M. Abbasi","doi":"10.7508/IJND.2015.04.007","DOIUrl":"https://doi.org/10.7508/IJND.2015.04.007","url":null,"abstract":"In this paper, we have tried to find a solution for quick transfer of nuclear wastes from pools of cool water to dry stores to reduce the environmental concerns and financial cost of burying atomic waste. Therefore, the rate of heat transfer from atomic waste materials to the outer surface of the container should be increased. This can be achieved by covering the bottom of the pool space with conical fins (vertically) embedded in porous medium and allowing natural convection flow of Newtonian nanofluid upon it. In this research, we studied the rate of heat transfer by using such special space. In this study, Heat transfer boundary layer flow in Nano-fluidics shifting from a vertical cone in porous medium, two-dimensional, steady, incompressible and low speed flow have been considered and attempts have been made to obtain analytical solutions for it. The obtained nonlinear ordinary differential equation has been solved through homotopy analysis method (HAM), considering boundary conditions and Nusselt number. Also, Nusselt number, which is an important parameter in heat transfer, is calculated using the obtained analytical solution by HAM. A comparison of the obtained analytical solution with the numerical results represented a remarkable accuracy. The results also indicate that HAM can provide us with a convenient way to control and adjust the convergence region.","PeriodicalId":14081,"journal":{"name":"international journal of nano dimension","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83132826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 24

Sulfur modified ZnO nanorod as a high performance photocatalyst for degradation of Congoredazo dye 硫修饰ZnO纳米棒作为降解刚果偶氮染料的高性能光催化剂

IF 1.5

international journal of nano dimension Pub Date : 2015-10-01 DOI: 10.7508/IJND.2015.04.011

Janitabar Darzi Simin, A. Mahjoub, A. Bayat

{"title":"Sulfur modified ZnO nanorod as a high performance photocatalyst for degradation of Congoredazo dye","authors":"Janitabar Darzi Simin, A. Mahjoub, A. Bayat","doi":"10.7508/IJND.2015.04.011","DOIUrl":"https://doi.org/10.7508/IJND.2015.04.011","url":null,"abstract":"Sol-gel derived sulfur modified and pure ZnO nanorod were prepared using zinc chloride and thiocarbamide as raw materials. Prepared nanorods were characterized by means of X-ray diffraction (XRD), thermogravimetry- differential scanning calorimetry (TG–DSC), UV- Vis absorption spectroscopy, Brunauer Emmett Teller (BET) specific surface area and Barrett Joyner Halenda (BJH) pore size distribution analyses, scanning electron microscopy (SEM) and Energydispersive X-ray spectroscopy (EDX) analyses. The band gaps of sulfur modified and pure ZnO were estimated from UV-Vis spectroscopy data to be 2.75 and 3.18 ev, respectively. The specific surface area of sulfur modified ZnO nanorod calculated to be 2.63 m 2 /g using BET method. Pore size distribution curve of the mater obtained via BJH method revealed that the diameter of the pores is from several to more than 20nm. Photocatalytic activity of synthesized sulfur modified and pure ZnO nanorod were tested for degradation of Congoredazo dye under ultraviolet and visible light. The results revealed that the sulfur modified ZnO nanorod has excellent photocatalytic activity towards Congored under visible light illumination.","PeriodicalId":14081,"journal":{"name":"international journal of nano dimension","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90299034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

PREPARATION AND CHARACTERIZATION OF GRAPHENE/NICKEL OXIDE NANORODS COMPOSITE 石墨烯/氧化镍纳米棒复合材料的制备与表征

IF 1.5

international journal of nano dimension Pub Date : 2015-10-01 DOI: 10.7508/IJND.2015.04.005

Fatemeh Zahraei, K. Rahimi, A. Yazdani

{"title":"PREPARATION AND CHARACTERIZATION OF GRAPHENE/NICKEL OXIDE NANORODS COMPOSITE","authors":"Fatemeh Zahraei, K. Rahimi, A. Yazdani","doi":"10.7508/IJND.2015.04.005","DOIUrl":"https://doi.org/10.7508/IJND.2015.04.005","url":null,"abstract":"Graphene-based nanocomposites are newly emerged materials with a wide range of applications such as in supercapacitors electrode. The high conductivity and ability for passing electric current, makes Graphene an appropriate new item to be used in cells. Electroactive transition metal oxides, owing fast reversible redox pairs, are used to store electrical charge. Furthermore, the Graphene/NiO nanocomposites can be used to improve the electrochemical properties of NiO. Here we report a new and facile route for synthesizing Graphene/NiO nanorods composite (GNC). High-quality few-layer Graphene/NiO nanorod composite (GNC) is synthesized via solvothermal method. Solution phase exfoliation of graphite is investigated in N-Methyl-Pyrrolidone (NMP). The existence of few-layer graphene is confirmed by Raman spectroscopy while presence of NiO is demonstrated by UV-Vis spectroscopy (UV) and X-ray diffraction (XRD) pattern. The Field Emission Scanning Electron Microscopy (FESEM) and X-ray diffraction (XRD) pattern also provide proof of GNC on graphene. Images indicate NiO nanorods with average diameter of 35 nm and 100 nm lengths, deposited on graphene.","PeriodicalId":14081,"journal":{"name":"international journal of nano dimension","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84386273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

SYNTHESIS AND CHARACTERIZATION OF NICKEL (II) CHLORIDE NANOPARTICLES WITH THE STUDY OF THEIR THERMAL BEHAVIOR 氯化镍纳米颗粒的合成、表征及其热行为研究

IF 1.5

international journal of nano dimension Pub Date : 2015-10-01 DOI: 10.7508/IJND.2015.04.008

Z. Rahmani, S. Ghamamy

引用次数: 1

Biosynthesis of Silver nanoparticles using root extract of the medicinal plant Justicia adhatoda: Characterization, electrochemical behavior and applications 药用植物刺麻根提取物生物合成纳米银:表征、电化学行为及应用

IF 1.5

international journal of nano dimension Pub Date : 2015-10-01 DOI: 10.7508/IJND.2015.04.002

K. Ponvel, T. Narayanaraja, J. Prabakaran

{"title":"Biosynthesis of Silver nanoparticles using root extract of the medicinal plant Justicia adhatoda: Characterization, electrochemical behavior and applications","authors":"K. Ponvel, T. Narayanaraja, J. Prabakaran","doi":"10.7508/IJND.2015.04.002","DOIUrl":"https://doi.org/10.7508/IJND.2015.04.002","url":null,"abstract":"A facile and green approach has been developed to synthesize silver nanoparticle (Ag-NPs). This was carried out by a biosynthetic route using Justicia Adhatoda root extract as reducing and stabilizing agent. The structure, composition, average particle size (~25 nm) and surface morphology of Ag-NPs were characterized by the X-ray diffraction, transmission electron microscope and atomic force microscope analyses. The possible functional groups in the plant extracts were identified by FT-IR analysis. Electrochemical property of the AgNPs was analysed by cyclic voltammetry that displayed an oxidation peak potential at Epa = 0.438 V. Mechanism of the formation of Ag-NPs was proposed which showed that the phenolic compounds of the root extract respond for the reduction of silver ions to silver nanoparticles. Ag-NPs exhibit good antioxidant and antibacterial activities. This biosynthetic approach could open a path for environmentally friendly, simple, cost effective, alternate for conventional synthesis. This prevented hazardous chemicals and was useful for applications in medicine and large scale production of metallic nanoparticles.","PeriodicalId":14081,"journal":{"name":"international journal of nano dimension","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76807894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16