World Journal of Applied Physics最新文献_第2页

A Study of the Germination of Green Beans in Different Gravity Conditions 不同重力条件下四季豆发芽的研究

World Journal of Applied Physics Pub Date : 2019-06-04 DOI: 10.11648/J.WJAP.20190401.12

Joompon Bamrungwong, B. Arthibenyakul

{"title":"A Study of the Germination of Green Beans in Different Gravity Conditions","authors":"Joompon Bamrungwong, B. Arthibenyakul","doi":"10.11648/J.WJAP.20190401.12","DOIUrl":"https://doi.org/10.11648/J.WJAP.20190401.12","url":null,"abstract":"The literature suggests that plants are able to grow in the absence of gravity, and NASA has a plan to cultivate plants on Mars. Thus, the aim of this research was to study the germination and growth of green beans at differing levels of gravity from 0.5G to 3G. Pseudo gravity has been used to study the growth and germination of the green beans under different gravity levels. The results showed that under high gravity the green beans were able to germinate but were unable to grow. Under low gravity the green beans were able to both germinate and grow. However, due to the limitations of the authors’ apparatus, the behavior of green beans under lower gravity levels than 0.5G could not be investigated. Finite element modeling was used to study the stems of the green beans at different gravity levels. The result from the FEM is correlated with the experiment but it did not take the angle from the horizontal line as the actual germination of the green beans. However, it shows that under high gravity the stems of the bean sprouts were not able to resist the force of gravity. Thus, the plants might be unable to germinate and grow on new planets of larger size.","PeriodicalId":131530,"journal":{"name":"World Journal of Applied Physics","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133932361","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

Interpretation of High Resolution Aeromagnetic Data for Hydrocarbon Potentials over Parts of Nasarawa and Environs North-Central Nigeria 奈及利亚中北部Nasarawa及周边地区高分辨率航磁资料的油气潜力解释

World Journal of Applied Physics Pub Date : 2019-05-29 DOI: 10.11648/J.WJAP.20190401.11

R. Ayuba, A. Nur

{"title":"Interpretation of High Resolution Aeromagnetic Data for Hydrocarbon Potentials over Parts of Nasarawa and Environs North-Central Nigeria","authors":"R. Ayuba, A. Nur","doi":"10.11648/J.WJAP.20190401.11","DOIUrl":"https://doi.org/10.11648/J.WJAP.20190401.11","url":null,"abstract":"Spectral depth analysis over parts of Nasarawa area was carried out using high resolution aeromagnetic data to determine the depth to bottom of magnetic sources, to enable build up a subsurface picture of basement configuration and possible sediments distribution that promote hydrocarbon exploration in the area. The study revealed one and in most cases two source model, these are the deep magnetic anomaly sources and the shallow magnetic anomaly sources. The deep sources anomalies vary between 2.23km and 5.11km with an average depth of 3.05km and this represents the magnetic basement depth. The shallow anomaly sources vary from 0.07km to 0.42km with an average of 0.21km and this may be regarded as the magnetic intrusions into the sediment, probably through the magmatic activities. The revelation from this study of 3.05km magnetic basement depth at the southern part of the area is synonymous to depth of Cretaceous sediment, which is very significant to hydrocarbon generation potential in the area. The result shows the graben nature and indicated the existence of a deeper sub basin in the area. The central and south-western parts with higher sedimentary thicknesses are the most probable sites for hydrocarbon accumulation.","PeriodicalId":131530,"journal":{"name":"World Journal of Applied Physics","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129355542","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

Field Reconstruction of Holograms for Interactive Free Space True Three Dimensional Display 交互式自由空间真三维显示全息图的场重建

World Journal of Applied Physics Pub Date : 2017-06-10 DOI: 10.11648/J.WJAP.20190403.12

Guangjun Wang

引用次数: 2

Trolleybus Catenary-Pantograph Self-generation Contact Force Under Preload 无轨电车接触网-受电弓在预载下自生接触力

World Journal of Applied Physics Pub Date : 1900-01-01 DOI: 10.11648/j.wjap.20210604.12

Min Chen, T. Allen

引用次数: 0

Characterization of Thin Films Deposited from Benzene Using Microwave Plasma Polymerization 微波等离子体聚合法制备苯薄膜的研究

World Journal of Applied Physics Pub Date : 1900-01-01 DOI: 10.11648/j.wjap.20210604.13

Nuri Ayad Zreiba, Lubna Emhemed Elzawi

引用次数: 0

Studying the Effect of Delay Time on Intensity of Laser Induced Breakdown Spectroscopy Technique Using Mas Cement Sample 利用Mas水泥样品研究延迟时间对激光诱导击穿光谱技术强度的影响

World Journal of Applied Physics Pub Date : 1900-01-01 DOI: 10.11648/j.wjap.20220701.12

Altaf Alsaid Mohamed Abdalgader, A. Awadelgied

引用次数: 1

Determine the Gamma Radiation Technique to Sterilization of Insects from Risk Factor 从危险因素探讨伽玛辐射技术对昆虫灭菌的影响

World Journal of Applied Physics Pub Date : 1900-01-01 DOI: 10.11648/j.wjap.20210602.12

Baye Zinabe Kebede

{"title":"Determine the Gamma Radiation Technique to Sterilization of Insects from Risk Factor","authors":"Baye Zinabe Kebede","doi":"10.11648/j.wjap.20210602.12","DOIUrl":"https://doi.org/10.11648/j.wjap.20210602.12","url":null,"abstract":"The sterile insect technique (SIT) is an environment-friendly blighter management technique with application within the area-wide integrated management of key pests, together with the suppression or elimination of introduced populations and therefore the exclusion of recent introductions. Procreative sterility is often evoked by radiation, a convenient and consistent technique that maintains an inexpensive degree of aggressiveness within the discharged insects. The price and effectiveness of an effective program integration of the SIT rely on the balance between sterility and aggressiveness, but it seems that current operational programs with an associate SIT element aren't achieving an associated, applicable balance. In this paper, we will discuss how to improve the sterilization method as well as a simple model and procedure for determining the optimum dose. The work in the gift was focused on an association analysis of the electromagnetic wave technique for insect sterilization as a risk issue. Discharge of enormous numbers of gamma-radiated male flies over the complete island caused concern regarding sterilization as an attainable technique for the dominant insects' public health. Several studies on the sterilization of varied insect vectors of sickness have been conducted since then. The study's goal was to check if electromagnetic waves were an efficient insect management mechanism. Insect sterilization is commonly used to create safe environments for fruit homes, manage blighters, and avoid livestock health issues. The sterilization insect technique entails mass-rearing of the target species, sterilization of the male, and unharnessing in sufficient numbers to equal wild male flies in the natural environment. It's species-specific, with no results for any of the 'non-target' species.","PeriodicalId":131530,"journal":{"name":"World Journal of Applied Physics","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124511463","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: 2

The Verification of Propotionality Between Time Period and Length of a Simple Pendulum Experiment Using Deep Neural Network 用深度神经网络验证单摆实验时间与长度的正比性

World Journal of Applied Physics Pub Date : 1900-01-01 DOI: 10.11648/j.wjap.20210604.11

Adesiyan Ayomide, Obioma Osuagwu

引用次数: 0

Variation of Atmospheric Temperature with Height in the Phenomena of Lightning Waveforms 闪电波形现象中大气温度随高度的变化

World Journal of Applied Physics Pub Date : 1900-01-01 DOI: 10.11648/j.wjap.20190404.11

Pitri Bhakta Adhikari

引用次数: 1

The Study of Diluted Magnetic Semiconductor: The Case of Manganese Doped Gallium Nitride 稀释磁性半导体的研究:以锰掺杂氮化镓为例

World Journal of Applied Physics Pub Date : 1900-01-01 DOI: 10.11648/j.wjap.20220701.11

Merawi Tilahun Tegegne

{"title":"The Study of Diluted Magnetic Semiconductor: The Case of Manganese Doped Gallium Nitride","authors":"Merawi Tilahun Tegegne","doi":"10.11648/j.wjap.20220701.11","DOIUrl":"https://doi.org/10.11648/j.wjap.20220701.11","url":null,"abstract":": The diluted magnetic semiconductor, (Ga, Mn) N has recently attracted intense research interest for the purpose of spintronics application. The material is believed to circumvent the difficulty of combining data processing and mass storage facilities in a single crystal besides solving non-volatility problems. The concentration x, of Mn that substitutes for a fraction of Ga in the compound is thought to contribute a large concentration of magnetic moments and holes. The material studied is focused on dilute magnetic semiconductors (DMS) like Ga 1-X Mn X N that play a key role in semiconductor spintronics. Due to their ferromagnetic properties they can be used in magnetic sensors and as spin injectors. The basic problems for applications are, however, the relatively low Curie temperatures of these systems. Therefore, we focus on the understanding of the magnetic properties and on a reliable calculation of Curie temperatures from first principles. We have developed a theoretical framework for calculating critical temperatures by combining first principles calculations and in terms of the Ruderman–Kittel–Kasuya– Yosida quantum spin model in Green’s function approach. Magnetic properties of the group-III nitride semiconductors are introduced here with basic material parameters (temperature, concentration, heat capacity, etc. Temperature dependencies of the spin wave specific heat, inverse magnetic susceptibility and reduced magnetization are determined. Therefore, the dependence of the Neel temperature on the manganese ion concentration is linear thus for our calculation the highest Neel temperature obtained T=146.3k within the concentration of 0.2.","PeriodicalId":131530,"journal":{"name":"World Journal of Applied Physics","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125477136","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