Iraqi Journal of Physics (IJP)最新文献_第3页

Photocatalytic Degradation of Methyl blue by TiO2 Nanoparticles Incorporated in Cement 水泥纳米TiO2光催化降解甲基蓝的研究

Iraqi Journal of Physics (IJP) Pub Date : 2023-03-01 DOI: 10.30723/ijp.v20i1.1042

Ban Alshabander, Mays Bassim Abd-Alkader

{"title":"Photocatalytic Degradation of Methyl blue by TiO2 Nanoparticles Incorporated in Cement","authors":"Ban Alshabander, Mays Bassim Abd-Alkader","doi":"10.30723/ijp.v20i1.1042","DOIUrl":"https://doi.org/10.30723/ijp.v20i1.1042","url":null,"abstract":"In this study, titanium dioxide (TiO2) nanoparticles incorporated with cement were synthesis by a simple casting method as a function concentration of TiO2 (0.2, 0.4, 0.8, 1, and 2 wt%). The prepared samples were characterized using the technique of Field Emission Scanning Electron Microscope (FESEM) and UV-Visible spectrophotometer, which was used to measure the adsorption spectra. The observed photocatalytic efficiency of TiO2 nanoparticles (NP) incorporated with cement was investigated by decomposing the dye methyl blue (MB) solution under sunlight irradiation. According to the slope, the value of the k constant at the best sample is 0.8wt%, k=0.8265 min-1. FESEM image of the TiO2/cement with 0.8 wt% content show the TiO2 NPs were well-attached to cement particles, and they covered the cement surface. The increase in photocatalytic (PC) activity was due to an increase of TiO2 concentration in the cement, which best occur of 0.8 wt% of TiO2 in cement. The degradation at the MB (5ppm) was 98.864 % after 120 min under sunlight irradiation. The method involves easily and simply preparing TiO2/cement that is used in self-cleaning and studying the effect of different festive factors, including the concentration of the dye. The preparation of TiO2/cement was successful as a photocatalyst for a self-cleaning surface.","PeriodicalId":14653,"journal":{"name":"Iraqi Journal of Physics (IJP)","volume":"66 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89365365","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: 1

Evaluation of Resonance Strengths and Reaction Rates of 22Ne (p, gamma) 23Na Nuclear Reaction at Thermonuclear Energies 热核能下22Ne (p， γ) 23Na核反应共振强度和反应速率的评价

Iraqi Journal of Physics (IJP) Pub Date : 2023-03-01 DOI: 10.30723/ijp.v21i1.1086

Ahmed A.Selman

引用次数: 0

Calculation Mars – Earth distance and Mars orbital elements with Julian date 用儒略历计算火星-地球距离和火星轨道元素

Iraqi Journal of Physics (IJP) Pub Date : 2023-03-01 DOI: 10.30723/ijp.v21i1.1081

Atared Y. Qahtan

引用次数: 0

FTIR and electrical behavior of blend electrolytes based on (PVA/PVP) 基于(PVA/PVP)的共混电解质的FTIR和电学行为

Iraqi Journal of Physics (IJP) Pub Date : 2023-03-01 DOI: 10.30723/ijp.v20i1.1093

Fatima ALjubouri, Mohammed Kadhim Jawad

引用次数: 0

Investigate Indian Costus Plasma Parameters using Q-Switched Laser Nd: YAG 用调q激光Nd: YAG研究印度Costus等离子体参数

Iraqi Journal of Physics (IJP) Pub Date : 2023-03-01 DOI: 10.30723/ijp.v21i1.1083

Alyaa Hussein, Hadder M. Abdullah

{"title":"Investigate Indian Costus Plasma Parameters using Q-Switched Laser Nd: YAG","authors":"Alyaa Hussein, Hadder M. Abdullah","doi":"10.30723/ijp.v21i1.1083","DOIUrl":"https://doi.org/10.30723/ijp.v21i1.1083","url":null,"abstract":"The Indian costus plasma properties are investigated including electron temperature (Te), \"electron density (ne)\", \"plasma frequency (fp)\", \" Debye sphere length\", and amount of Debye(Nd), using the spectrum of optical emission technique. There are several energies used, with ranging from 300 to 600 mJ. The Boltzmann Plot is used to calculate the temperature; where as Stark's Line Broadening is used to calculate the electron density. The Indian costus was spectroscopically examined in the air with the laser at 10 cm away from the target and the optical fiber at 0.5 cm away. The results were obtained for an electron temperature range of (1.8-2.2) electron volts (ev) and a wavelength range of (300-600) nm. The XRF analysis reveals that the Indian costus contains a variety of minerals, each with a different percentage, which explains why the optical emission spectrum has so many peaks. When the laser energy is (between 300 and 600 mJ) the \"optical emission spectroscopy (OES) \"has been used to analyze the plasma spectrum of the Indian costus in the air. The results shows that as the laser energy grew, the amount of Debye will be greater i-e (Nd) >>>1, which is one of the plasma properties.","PeriodicalId":14653,"journal":{"name":"Iraqi Journal of Physics (IJP)","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87976428","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

FTIR and electrical behavior of blend electrolytes based on (PVA/PVP) 基于(PVA/PVP)的共混电解质的FTIR和电学行为

Iraqi Journal of Physics (IJP) Pub Date : 2023-03-01 DOI: 10.30723/ijp.v21i1.1093

Fatima ALjubouri, Mohammed Kadhim Jawad

引用次数: 0

Geographical Distribution of Landfills in the Outskirts of Baghdad Governorate using the GIS 利用GIS研究巴格达省郊区垃圾填埋场的地理分布

Iraqi Journal of Physics (IJP) Pub Date : 2023-03-01 DOI: 10.30723/ijp.v21i1.1080

Zehraanajim ZehraaNajim

{"title":"Geographical Distribution of Landfills in the Outskirts of Baghdad Governorate using the GIS","authors":"Zehraanajim ZehraaNajim","doi":"10.30723/ijp.v21i1.1080","DOIUrl":"https://doi.org/10.30723/ijp.v21i1.1080","url":null,"abstract":"The problem of solid waste from domestic, industrial, commercial and medical sources is one of the most important problems facing the local administration in all Iraqi cities. The danger of this problem increases with the rapid increase in the population, changing lifestyles, consumption patterns, limited land suitable for landfill, and high costs of collection and disposal. This research aims to solve these problems by determining the locations of current landfills located in the outskirts of Baghdad Governorate. The ArcGIS program was used, where the sites of the landfills were determined on the map and through the available data about the areas. it was concluded that the existing landfill sites do not meet environmental conditions and standards. According to the statistics of 2016/2020, which the amount of waste in some areas has increased, and decreased in others. The results show that each of 16 municipalities at the outskirts of Baghdad Governorate has only one landfill. The Al-Zuhur district is one of the most waste-producing areas, according to the statistics of the years 2016/2020, due to the high population ratio in that area. Mahmudiyah was recorded among high rate waste production areas, as the amount of waste in 2016 was 49,000 tons, but decreased slightly in 2020 to 48,000 tons. The research recommends following the health and environmental foundations in proper planning for the establishment of waste dumps, as well as the necessity of activating the role of geographic information systems in the field of proper waste management and environmental planning.","PeriodicalId":14653,"journal":{"name":"Iraqi Journal of Physics (IJP)","volume":"90 6-7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77980623","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: 1

Theoretical Computation of Electron Density in Laser-Induced Carbon Plasma using Anisimov Model 用Anisimov模型理论计算激光诱导碳等离子体中电子密度

Iraqi Journal of Physics (IJP) Pub Date : 2023-03-01 DOI: 10.30723/ijp.v21i1.1082

Mohammed Alhamadani

引用次数: 0

Bandwidth Improvement of a Cone-Inverted Cylindrical and Cross Hybrids Dielectric Resonator Antennas 锥形-倒圆柱形和交叉混合介质谐振器天线的带宽改进

Iraqi Journal of Physics (IJP) Pub Date : 2023-03-01 DOI: 10.30723/ijp.v21i1.1084

N. Areebi, J. N. Jabir

{"title":"Bandwidth Improvement of a Cone-Inverted Cylindrical and Cross Hybrids Dielectric Resonator Antennas","authors":"N. Areebi, J. N. Jabir","doi":"10.30723/ijp.v21i1.1084","DOIUrl":"https://doi.org/10.30723/ijp.v21i1.1084","url":null,"abstract":"In this work, two cone-inverted cylindrical and cross-hybrid dielectric resonator antennas are stacked and excited by the coaxial probe method with an operating standard resonant frequency of 5.438 GHz. A drawback of these standard Dielectric Resonator Antennas (DRAs) is their narrow bandwidth. For good antenna performance, a stacked DR geometry and a thick dielectric substrate having a low dielectric constant are desired since this provides large bandwidth, better radiation power, reduces conductor loss and nonappearance of surface waves. Many approaches, such as changing the shape of the dielectric resonator, have been used to enhance bandwidth. Using DRA, having the lowest dielectric constant, increases the bandwidth and the electromagnetic energy. In the current work, bandwidth improvement was significantly achieved by the proposed geometry by varying the antenna size. A novel hybrid DRA configuration is used to increase the bandwidth of the antenna to 89.27% and 149.23% due to cone-inverted cylindrical and cross-hybrid dielectric resonator antennas, respectively. The DRA is designed numerically via Finite Difference Time Domain (FDTD) method. Several parameters like return loss, input impedance (verified at ) and radiation pattern are calculated. Furthermore, the stacked-hybrid technique is used to enhance the antenna's performance which is useful for broadband communication and the demand of wireless.","PeriodicalId":14653,"journal":{"name":"Iraqi Journal of Physics (IJP)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78078710","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

Design and Construction of a Dust Detection System using Infrared Laser: The Case of Dust Storms in Baghdad in the Summer 2022 红外激光粉尘探测系统的设计与建设——以2022年夏季巴格达沙尘暴为例

Iraqi Journal of Physics (IJP) Pub Date : 2023-03-01 DOI: 10.30723/ijp.v21i1.1077

Faten Abdel-Wahhab Abdel-Razzaq, A. A. Dhaigham, Sameer Khudhur Yaseen

{"title":"Design and Construction of a Dust Detection System using Infrared Laser: The Case of Dust Storms in Baghdad in the Summer 2022","authors":"Faten Abdel-Wahhab Abdel-Razzaq, A. A. Dhaigham, Sameer Khudhur Yaseen","doi":"10.30723/ijp.v21i1.1077","DOIUrl":"https://doi.org/10.30723/ijp.v21i1.1077","url":null,"abstract":"Iraq suffers from serious pollution with harmful particles that have important direct and indirect effects on human activities and human health. In this research, a system for detecting pollutants in the air was designed and manufactured using infrared laser technology. This system was used to detect the presence of pollutants in the dust storms that swept the city of Baghdad which could have a negative impact on human health and living organisms.\u0000The designed detection system based on the use of infrared laser (IR) with a wavelength of 1064 nm was used for the purposes of detecting pollutants based on the scattering of the laser beam from these pollutants. The system was aligned to obtain the best signal for the scattered rays, which were detected using a digital storage oscilloscope.\u0000These studies were conducted during the dust storms that occurred intensely in Baghdad in the months (April, May, June and July) of the year 2022. Where multiple samples were taken at different periods in these storms, measurements were also done during the storm. The types of polluting elements found in the dust of the storms are: carbon, bromine, chlorine, hydrocarbons alcohol, ether, hydroxyl group, carbon, C=C (aromatic ring), nitrogen dioxide (aromatic nitro), and carbon monoxide. The value of dust pollutant concentrations is (125.67 mg. m-3).","PeriodicalId":14653,"journal":{"name":"Iraqi Journal of Physics (IJP)","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87975290","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