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Current Approaches in Science and Technology Research Vol. 12最新文献

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A Comparison of the Performance of Artificial Neural Network Algorithms in Facial Expression Recognition 人工神经网络算法在面部表情识别中的性能比较
Pub Date : 2021-07-21 DOI: 10.9734/BPI/CASTR/V12/3270F
Amira Elsir Tayfour, Al-Soswa Mohammed, M. E. Eldow
The methods for identifying facial expressions are presented in this research. The goal of this paper is to present a texture-oriented method combined with dimensional reduction that can be used to train the Single-Layer Neural Network (SLN), Back Propagation Algorithm (BPA), and Cerebellar Model Articulation Controller (CMAC) for identifying facial expressions. The proposed methods are known as intelligent methods because they can account for variations in facial expressions and thus perform better for untrained facial expressions. Conventional methods have limitations in that face expressions must adhere to certain guidelines. Gabor wavelet is used in different angles to extract possible textures of the facial expression to achieve expression detection accuracy. The higher dimensions of the extracted texture features are further reduced by using Fisher's linear discriminant function to improve the proposed method's accuracy. For training the proposed algorithms, Fisher's linear discriminant function is employed to turn a higher-dimensional feature vector into a two-dimensional vector. Angry, disgust, happiness, sadness, surprise, and fear are some of the facial emotions that are used. The proposed algorithms are compared in terms of performance.
本研究提出了人脸表情识别的方法。本文的目标是提出一种结合降维的面向纹理的方法,可用于训练单层神经网络(SLN)、反向传播算法(BPA)和小脑模型发音控制器(CMAC)来识别面部表情。所提出的方法被称为智能方法,因为它们可以解释面部表情的变化,因此对未经训练的面部表情表现得更好。传统的方法有局限性,因为面部表情必须遵循一定的准则。利用Gabor小波在不同角度提取面部表情可能存在的纹理,达到表情检测的精度。利用Fisher线性判别函数进一步降低提取的纹理特征的高维数,提高方法的精度。为了训练所提出的算法,使用Fisher的线性判别函数将高维特征向量转换为二维向量。愤怒、厌恶、快乐、悲伤、惊讶和恐惧是一些被使用的面部表情。在性能方面对提出的算法进行了比较。
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引用次数: 0
Study on Codon Modulo Cryptosystem for Privacy Preservation of Vertically Partitioned Outsourced Data 垂直分割外包数据隐私保护的密码子模密码系统研究
Pub Date : 2021-07-21 DOI: 10.9734/BPI/CASTR/V12/3295F
M. Yogasini, B. Prathibha
Data passes crossways the cloud by the methods of assorted way. It is fundamental to safeguard the data from unapproved users to access the information in any structure. The information refuge is guaranteed by changing a plain text into an incomprehensible configuration by encoding text utilizing cryptographic calculations and these techniques are espoused for scrambling the text to made sure about their data from aggressors to guarantee data protection. Deoxyribo Nucleic Acid (DNA) is an encryption method utilized to provide security to the distributed computing data. In this paper Codon Modulo Cryptography-based Algorithm for vertically partitioned cloud data is applied to provide security for the transactional data. Affiliation Rule Mining and Frequent Itemset strategies are applied to aggregate the Association Rules among the Frequent Items in a scrambled exchange of vertically partitioned information base. The exhibition of Rule Mining calculations such as Apriori, FP-Growth and Eclat with the proposed Codon Modulo algorithm is contrasted with the conventional Homomorphic Encryption. The result exhibits that the proposed algorithm outperforms the Homomorphic Encryption in performance with a high-security level.
数据通过各种方式在云上传递。保护数据不受未经批准的用户访问任何结构中的信息是至关重要的。通过使用加密计算对文本进行编码,将纯文本更改为难以理解的配置,从而保证信息避难所的安全,并且支持这些技术用于对文本进行置乱,以确保其数据不受攻击者的攻击,从而保证数据保护。脱氧核糖核酸(DNA)是一种用于为分布式计算数据提供安全性的加密方法。本文提出了一种基于密码模密码的云数据垂直分区算法,为交易数据提供安全保障。采用关联规则挖掘和频繁项集策略对垂直划分的信息库中频繁项间的关联规则进行聚合。将该密码子模算法与传统的同态加密算法进行了对比,展示了Apriori、FP-Growth和Eclat等规则挖掘计算。结果表明,该算法在性能上优于同态加密,具有较高的安全性。
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引用次数: 0
Study on Isolation and Characterization of Lipid-Degrading Bacteria in Wastewater of Food Processing Plants and Restaurants in Can Tho City, Vietnam 越南芹苴市食品加工厂和餐馆废水中脂质降解菌的分离与特性研究
Pub Date : 2021-07-21 DOI: 10.9734/BPI/CASTR/V12/3355F
Ngô Thanh Phong, C. N. Diệp
High lipid (fats and oils) concentration contained in wastewater causes clogged drain pipes and inhibits the activity of microbes in biological wastewater treatment systems. The lipids degradation capability of lipid-degrading bacteria was investigated for possible application in treatment of lipids-contaminated wastewater. A total of 102 bacterial isolates were isolated from 43 vegetable oil- contaminated wastewater samples of many food processing plants and restaurants in 5 districts of CanTho city, Vietnam on LB medium. Among of them, 61 isolates formed clear zones on Tw20 medium. Out of the 61 bacterial isolates, 11 formed large halos which had the potential ability to degrade vegetable oil in the contaminated wastewater. These 11 baterial isolates were identified by PCR technique and DNA sequencing. The results of DNA sequencing were compared with GenBank database of NCBI by BLAT N software. The DNA sequences of selected isolates showed high degrees of similarity to those of the GenBank references (between 97% and 99%). Two isolates belonged to Bacilli (18.18 %) and nine isolates belonged to Gammaproteobacteria (81.82%). Based on Pi value (nucleotide diversity), Gammaproteobacteria group had the highest Theta values. Theta value (per sequence) from S of SNP for DNA polymorphism were calculated for each group and the 11 lipid-degrading strains had high genetic diversity. The results proposed Acinetobacteria soli strain AL3 as a potential bioproduct for wastewater treatment because of its high ability of lipid degradation and biosafety.
废水中含有的高脂质(脂肪和油)浓度会导致排水管堵塞,并抑制废水生物处理系统中微生物的活性。研究了脂质降解菌的脂质降解能力,探讨了其在处理含脂废水中的应用前景。用LB培养基从越南河内市5个区多家食品加工厂和餐馆的43份植物油污染废水样品中分离出102株细菌。其中61株分离物在Tw20培养基上形成清带。在61株分离细菌中,有11株形成了大光晕,具有降解污染废水中植物油的潜在能力。通过PCR技术和DNA测序对这11株分离菌株进行了鉴定。DNA测序结果用BLAT N软件与NCBI GenBank数据库进行比对。所选菌株的DNA序列与GenBank参考文献的DNA序列高度相似(在97% ~ 99%之间)。芽胞杆菌属2株(18.18%),γ变形菌属9株(81.82%)。根据Pi值(核苷酸多样性),Gammaproteobacteria组的Theta值最高。计算各组DNA多态性SNP S的Theta值(每个序列),11株脂质降解菌株具有较高的遗传多样性。结果表明,不动杆菌soli菌株AL3具有较高的脂质降解能力和生物安全性,是一种潜在的废水处理生物产品。
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引用次数: 0
Periodic Solution of Two-Body Problem of Classical Electrodynamics with Radiation Terms 带辐射项的经典电动力学二体问题的周期解
Pub Date : 2021-07-21 DOI: 10.9734/BPI/CASTR/V12/3280F
V. Angelov
The present paper is an improved version of a previous one, where we have proved an existence-uniqueness of periodic motion of two-body problem of classical electrodynamics. The system of equation of motion obtained is of a neutral type with respect to the unknown velocities with both retarded and advanced arguments depending on the unknown trajectories. We use an operator introduced in a previous our paper. Its fixed point is a periodic solution of the problem in question. An existence-uniqueness of a periodic solution means an existence of closed orbits. But this means that Bohr-Sommerfeld stationary states are a consequence of classical electrodynamics. Radiation terms are chosen such so as not to disturb the stability of the hydrogen atom.
本文是对前一篇经典电动力学二体问题周期运动的存在唯一性的改进。所得到的运动方程系统对于未知的速度是中性型的,根据未知的轨迹有延迟参数和超前参数。我们使用了一个在之前的论文中介绍过的算子。它的不动点是问题的周期解。周期解的存在唯一性意味着闭轨道的存在性。但这意味着玻尔-索默菲尔德定态是经典电动力学的结果。辐射术语的选择是为了不干扰氢原子的稳定性。
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引用次数: 1
Correlation between the Plasma Magnesium Levels and Glycated Haemoglobin in Sudanese Patients with Type 2 Diabetes Mellitus in Khartoum State: A Cross Sectional Study 喀土穆苏丹2型糖尿病患者血浆镁水平与糖化血红蛋白的相关性:一项横断面研究
Pub Date : 2021-07-21 DOI: 10.9734/BPI/CASTR/V12/11148D
Tilal Abd El-Hameed Seedahmed, S. M. Ahmed
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引用次数: 0
On the Tensile Strength of ABS Produced by Fused Deposition Modelling Process 熔融沉积成型ABS的抗拉强度研究
Pub Date : 2021-07-21 DOI: 10.9734/BPI/CASTR/V12/10280D
K. Prasad, J. Deepak, H. Adarsha
3D printing is a useful technique in the manufacturing of composites. Parts can be manufactured with high accuracy, low cost, and customizable geometry. Among the various methods, the fused deposition modeling (FDM) is found to be the most versatile method used to produce composites of thermoplastics. This method is highly suitable for producing parts which are complex and have intricate details. The FDM process is gaining popularity owing to the simplicity of the process and minimum tooling required for manufacturing the parts. In the present work we discuss the effect of varying raster angle and layer thickness on the tensile properties of acrylonitrile butadiene styrene (ABS). It is found that as layer thickness increases it reduces the tensile strength also maximum tensile strength is observed in case of specimens having 60o as raster angle.
3D打印在复合材料制造中是一种有用的技术。零件可以制造精度高,成本低,可定制的几何形状。在各种方法中,熔融沉积建模(FDM)被认为是生产热塑性塑料复合材料最通用的方法。这种方法非常适用于生产复杂、细节复杂的零件。FDM工艺越来越受欢迎,因为工艺简单,制造零件所需的工具最少。本文讨论了不同光栅角度和层厚对丙烯腈-丁二烯-苯乙烯(ABS)拉伸性能的影响。随着层厚的增加,抗拉强度降低,当栅格角为60°时,试件的抗拉强度达到最大值。
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引用次数: 0
Study on SIR Epidemic Model with Constant Vaccination: A Differential Transformation Approach 具有恒定疫苗接种的SIR流行病模型研究:一种微分变换方法
Pub Date : 2021-07-21 DOI: 10.9734/BPI/CASTR/V12/10850D
S. Ibrahim, S. Ismail
Over the years, diligent vaccination campaigns have resulted in high levels of permanent immunity against the childhood disease among the population. Childhood diseases are the most common form of infectious diseases. In this article SIR model that monitors the temporal dynamics of a childhood disease in the presence of preventive vaccine is developed. The qualitative analysis reveals the vaccination reproductive number . for disease control and eradication. The aim of this paper is to apply the differential transformation method (DTM) which is used to compute an approximation to the solution of the non-linear system of differential equations governing the problem. Graphical results are presented and discussed quantitatively to illustrate the solutions.
多年来,勤奋的疫苗接种运动使人口对儿童疾病具有高水平的永久免疫力。儿童疾病是最常见的传染病。在这篇文章中,SIR模型,监测儿童疾病的时间动态在预防疫苗的存在是发展。定性分析揭示了接种繁殖数。用于疾病控制和根除。本文的目的是应用微分变换法(DTM)来计算控制该问题的非线性微分方程组的近似解。给出了图形结果,并进行了定量讨论,以说明解决方案。
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引用次数: 0
Thermal and Flow Analysis of the Helical Coil Heat Exchanger Used in an Aqueous Solution of Ammonium Nitrate Solubility (ANSOL) with 20% H2O and 80% AN 在含20% H2O和80% an的硝酸铵溶解度水溶液(ANSOL)中使用的螺旋盘管换热器的热流分析
Pub Date : 2021-07-21 DOI: 10.9734/BPI/CASTR/V12/11288D
É. Nogueira
The case study is about obtaining the flow rate and saturation temperature of steam that makes it possible to heat a solution of water and ammonia nitrate (ANSOL) in a shell and helical coil tube heat exchanger, within a time interval, without that the crystallization of the ANSOL solution occurs. The desired production per batch of the solution is 5750 kg in 80 minutes. The analysis uses the concepts of efficiency and effectiveness to determine the heat transfer rate and temperature profiles that satisfy the imposed condition within a certain degree of safety and with the lowest possible cost in steam generation. Intermediate quantities necessary to reach the objective are the Reynolds number, Nusselt number, and global heat transfer coefficient for the shell and helical coil tube heat exchanger. Initially, the water is heated for a specified period and, subsequently, the ammonium nitrate is added to a given flow in a fixed mass flow rate.
该案例研究是关于获得蒸汽的流量和饱和温度,使得在一段时间间隔内加热壳和螺旋盘管热交换器中的水和硝酸铵溶液(ANSOL)成为可能,而不会发生ANSOL溶液的结晶。每批溶液在80分钟内的期望产量为5750公斤。分析使用效率和有效性的概念来确定传热率和温度分布,在一定程度的安全范围内满足所施加的条件,并以最低的蒸汽产生成本。达到目标所需的中间量是壳管式和螺旋盘管式换热器的雷诺数、努塞尔数和整体传热系数。首先,将水加热一段时间,然后以固定的质量流量将硝酸铵加入到给定的流量中。
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引用次数: 0
Determining the Evaluation of Daylight Parameters on the Basis Simulation Model for the Tropical Climate 在热带气候的基础模拟模式上确定白昼参数的评估
Pub Date : 2021-07-21 DOI: 10.9734/BPI/CASTR/V12/3409F
Trupti J. Dabe
Use of natural daylight in the building is energy saving with respect to illumination levels and health benefits. However in, the hot and dry climatic zone increase in daylight availability may result into thermal ingress. This might lead to excess energy conservation. The aim of this paper is to evolve the methodology which could be used as a pre design tool for assessing the lighting provisions and thermal performance of spaces within buildings adopted by designers during the design process. The field measurements were conducted on the liveable spaces of a dwelling unit of the Nagpur region. Simulation studies using Ecotect Analysis 2011 was conducted for both illumination and thermal energy. The field measurements were compared with the simulated results. It has been found that the percentage difference (PD) between the Ecotect measurements (EM) and field measurements (FM) for both thermal loads and an illuminance level was less than 15%, the simulated model was considered precise for further study. The result imply that the simulated model would be ample for designers to evaluate the parameters associated to wall to window ratio, shading devices with respect to orientation of the building which helps to achieve the optimum useful daylight index.
在建筑中使用自然光在照明水平和健康效益方面是节能的。然而,在炎热和干燥的气候地区,日光可用性的增加可能导致热量的进入。这可能会导致过度的能量保存。本文的目的是发展一种方法,这种方法可以作为设计前的工具,用于评估设计师在设计过程中采用的建筑物内空间的照明条件和热性能。实地测量是对那格浦尔地区一个住宅单元的可居住空间进行的。使用Ecotect Analysis 2011对照明和热能进行了模拟研究。实测结果与模拟结果进行了比较。研究发现,在热负荷和照度水平下,Ecotect测量值(EM)和现场测量值(FM)的百分比差(PD)小于15%,认为模拟模型是精确的,可以进一步研究。结果表明,模拟模型将为设计师评估与墙窗比、遮阳装置相关的参数提供充足的依据,这些参数与建筑朝向有关,有助于实现最佳的有用日光指数。
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引用次数: 0
Study on the Design and Implementation of Flexible Wearable Antenna on Thyroid Gland in the Detection of Cancer Cells 甲状腺柔性可穿戴天线在癌细胞检测中的设计与实现研究
Pub Date : 2021-07-21 DOI: 10.9734/BPI/CASTR/V12/3343F
I. Sheeba
The article brings out an innovative Z shape wearable patch antenna that was designed over textile also the other type of substrates to test its performance over ISM (industrial, scientific, medicine) band of microwave frequencies was discussed. Wearable antenna has the wearable and textile properties bending in 2D, which shows the flexibility for the wearable electronic devices. Since the performance of the antenna is working on ISM band, it is perfectly suitable for biomedical applications. In the proposed antenna silk substrate is chosen for implementation because of its low SAR and is placed on the thyroid gland to detect the cancer cells. The performances of the antenna were varied, when it is placed on the thyroid gland of the human tissue, Tissue properties were considered and analyzed within and without cancer affected areas. Since cancer cells are more water content tissues, the gain and electrical conductivity performance were found changed. While placing the antenna on thyroid gland it is also observed that there is a change in working frequency of the Z-patch silk substrate wearable antenna. Hence by using this proposed antenna on human body and by appraising its results, the presence or absence of thyroid cancer can be detected.  The simulated results have been tabulated and measured. The results of the fabricated proposed antenna S11 have been shown by using the network analyzer.
本文提出了一种创新的Z形可穿戴贴片天线,设计在纺织品和其他类型的衬底上,以测试其在ISM(工业,科学,医学)微波频率波段的性能。可穿戴天线具有二维弯曲的可穿戴性和纺织性,显示了可穿戴电子设备的灵活性。由于该天线的性能工作在ISM波段,因此非常适合生物医学应用。在所提出的天线中,由于丝基板具有较低的SAR,因此选择丝基板来实现,并将其放置在甲状腺上以检测癌细胞。当天线放置在人体组织的甲状腺上时,其性能会发生变化,并对癌变区域内和非癌变区域的组织特性进行了考虑和分析。由于癌细胞是含水量较多的组织,因此发现其增益和电导率性能发生了变化。将天线放置在甲状腺上时,还观察到z片丝衬底可穿戴天线的工作频率发生了变化。因此,通过在人体上使用该天线并对其结果进行评估,可以检测甲状腺癌的存在与否。模拟结果已制成表格并进行了测量。利用网络分析仪对所设计的S11天线的性能进行了验证。
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引用次数: 3
期刊
Current Approaches in Science and Technology Research Vol. 12
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