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Advanced Aspects of Engineering Research Vol. 16最新文献

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Evanescent Wave Fiber Optic Sensor for Detection of Fe+2 Using LED Source 用LED光源检测Fe+2的倏逝波光纤传感器
Pub Date : 2021-06-28 DOI: 10.9734/bpi/aaer/v16/9683d
V. K. Kulkarni, H. H. Bendigeri
A cost effective and sensitive chemical sensor is developed for detection ofFe+2 based on evanescent wave fiber optic absorption technique. A high quality LED source is used in sensing mechanism. Multimode sensor grade plastic clad silica (PCS) fiber is adopted as sensing arm, whose centre cladding region  is taken out to interact with the surrounding region(Fe+2 ions).This unclad region of the PCS fiber is used as a sensing element in this experiment. The sensor developed is highly sensitive over the dynamic range of concentration from 0.1ppm to 100ppm for the detection of Fe+2 in water.
基于倏逝波光纤吸收技术,研制了一种高性价比、高灵敏度的ofe +2化学传感器。传感机构采用高品质LED光源。传感臂采用多模传感器级塑料包层二氧化硅(PCS)光纤,取出其中心包层区域与周围区域(Fe+2离子)相互作用。PCS光纤的无包层区域在本实验中用作传感元件。该传感器在0.1ppm ~ 100ppm的动态浓度范围内对水中铁离子的检测具有很高的灵敏度。
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引用次数: 0
Advances in the Security Features of SATA Solid State Drives SATA固态硬盘安全特性研究进展
Pub Date : 2021-06-28 DOI: 10.9734/bpi/aaer/v16/8922d
B. Jagdale
This chapter focuses on advanced experiments and improvements in the security features of the SATA solid-state drives. In modern computer applications, the quantity of data is growing day by day, and accordingly, the size of storage media is also increasing rapidly. Flash memories are used in most storage devices, one of which is a Solid State drive. Solid-state drives, or SSDs, are non-volatile data storage devices that store data in NAND or NOR flash memories, providing features similar to traditional hard disk drives (HDD). This chapter provides a comparative study of Solid-state drives over Hard-disk drives. Further, a technique is designed and implemented to enhance SATA Solid-state drives security features in terms of user authentication, access control, and media recovery from the ATA security feature set.
本章重点介绍SATA固态硬盘安全特性的高级实验和改进。在现代计算机应用中,数据量日益增长,相应的,存储介质的大小也在迅速增大。大多数存储设备都使用闪存,其中一种是固态硬盘。固态硬盘(ssd)是一种非易失性数据存储设备,它将数据存储在NAND或NOR闪存中,提供与传统硬盘驱动器(HDD)类似的功能。本章提供了固态驱动器与硬盘驱动器的比较研究。此外,还设计并实现了一种技术,以增强SATA固态驱动器的用户身份验证、访问控制和来自ATA安全特性集的媒体恢复方面的安全特性。
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引用次数: 0
Polyphase Sequences with Good Correlation Properties and Merit Factor Based on Cyclic Algorithm Approach 基于循环算法的具有良好相关特性和优点因子的多相序列
Pub Date : 2021-06-28 DOI: 10.9734/bpi/aaer/v16/6194d
Rajasekhar Manda, P. R. Kumar
Polyphase Sequences with good autocorrelation properties, such as Pn {n=1,2,3,4,x}, Frank, Golomb, and the Chu, find many applications in RADAR, SONAR, and communication. Merit Factor (MF), ISL (Integrated Sidelobe Level) are performance measures used to evaluate the goodness of any sequence. This work uses a cyclic algorithm approach to generate Polyphase sequences with lengths ranging from 10^2 to 10^3 . The merit factor and correlation features of these cyclic algorithm techniques outperform the standard scenario. The average merit factor for lengths of 100 and 1000 was found to be 40.39 and 92.02, respectively. The correlation graphs of polyphase sequences using the cyclic technique are compared to the normal case.P2 sequences with a higher merit factor for odd integer square length were made achievable using this method. The merit factor values and correlation plots of four successive even and odd integer squared length sequences were compared.For these Polyphase sequences, a cyclic algorithmic approach for collecting design metrics has been implemented in MATLAB.
具有良好自相关特性的多相序列,如Pn {n=1,2,3,4,x}, Frank, Golomb和Chu,在雷达,声纳和通信中有许多应用。优点因子(MF), ISL(综合旁瓣电平)是用来评估任何序列的优良性的性能指标。这项工作使用循环算法方法来生成长度范围为10^2到10^3的多相序列。这些循环算法技术的优点因子和相关特性优于标准场景。长度为100和1000的平均价值因子分别为40.39和92.02。用循环技术得到了多相序列的相关图,并与正常情况进行了比较。利用该方法可以实现对奇数平方长度具有较高优点因子的P2序列。比较了4个连续的偶数和奇数平方长度序列的优点因子值和相关图。对于这些多相序列,在MATLAB中实现了收集设计度量的循环算法方法。
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引用次数: 0
A Study to Adapt Raw Clay Housing to Climate Change: The Locust Bean Tree (Parkia biglobosa) was Used as Protective Material 以刺槐豆树为保护材料的生土房屋适应气候变化的研究
Pub Date : 2021-06-28 DOI: 10.9734/bpi/aaer/v16/9477d
Samah Ouro-Djobo Essoavana, Amey Kossi Bollanigni, Sanya A. Emile, Vianou Antoine, Atcholi Esso Kokou
Raw clay has been used in housing construction from ancient times and is still used now. Traditional habitat, which consists of diverse buildings scattered around our earth, provides proof. Rain water wash, among any other pathologies impacting naked earthen walls, is a serious concern that requires careful consideration. This explains why this study on the protection mechanisms for these types of walls is so interesting. This article describes an experiment with low walls built of raw clay mixed with composite protective materials (both traditional and modern), which were subjected to intense flooding. The locust bean tree (local tree) fruit husk extract applied to raw clay mortar and correctly blended appears to provide superior ability to protect walls from water assault, according to the results of the tests examined through the efficiency of the protecting materials. In addition, consistency and plasticity tests showed improved performance in clay material qualities. Research carried out shows that the decoction of pods of Parkia biglobosa (nere) is rich in tannins compounds including gallic acid, epicatechin gallate and epigallocatechin.
从古代起,生土就被用于房屋建筑,现在仍在使用。由分布在地球上的各种建筑组成的传统栖息地提供了证据。雨水冲刷,在影响裸露的土墙的任何其他病症中,是一个需要仔细考虑的严重问题。这就解释了为什么对这些类型的墙的保护机制的研究如此有趣。这篇文章描述了一个实验,用混合了复合保护材料(传统的和现代的)的生粘土建造的低墙,这些墙经受了强烈的洪水。根据对保护材料效率的测试结果,将刺槐豆树(当地树)果壳提取物应用于原料粘土砂浆并正确混合,似乎提供了更好的保护墙壁免受水侵蚀的能力。此外,一致性和塑性试验表明,粘土材料质量的性能有所改善。研究表明,枇杷豆荚煎液中含有丰富的单宁化合物,包括没食子酸、表儿茶素没食子酸酯和表没食子儿茶素。
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引用次数: 0
Recent Study of Optical Activity and Faraday Rotation around the Edge Absorption of the Crystals Bi12SiO20 and Bi12SiO20:M (M = Co, Fe) Bi12SiO20和Bi12SiO20:M (M = Co, Fe)晶体的旋光性和法拉第边吸收研究进展
Pub Date : 2021-06-28 DOI: 10.9734/bpi/aaer/v16/8222d
T. Dimov, I. Iliev, A. Hristova
In the spectral region of the excitons, reverse sign spectra of the Verdet constant V((hbaromega)) are observed in the optical active crystals Bi12 SiO20 and in the doped optical active crystals Bi12 SiO20:M (M=Co,Fe).. The spectral area, in which the sign of the doped crystals are changed, is moved in comparison to that of undoped crystals, and the energy of the photons (hbaromega), at which an inversion of the siX of the V((hbaromega)) of doped crystals is observed, is less than the one of the undoped crystals. The reverse siX spectra ofthe doped crystals Bi12 SiO20 in the spectral region of the excitons is clarified By an exchange interaction between the localized paramagnetic ions Co^(2+) (or Fe) and the charge carriers forming the excitons. The main internal defect (Bi_Si^(3+) +h^+) in Bi12 SiO20 in Bi12 SiO20 describes this effect in undoped crystals. The changing of the six of V((hbaromega)) in this defect by one exchange interaction ofthe ligand ion O^- with a connected exciton (e^-+h^+) in this defect according to a simplified model.
在激子的光谱区,在光学活性晶体Bi12 SiO20和掺杂光学活性晶体Bi12 SiO20:M (M=Co,Fe)中观察到Verdet常数V((hbaromega))的逆符号光谱。与未掺杂晶体相比,掺杂晶体的符号发生变化的光谱区域发生了移动,并且在观察到掺杂晶体的V((hbaromega))的6反转时,光子的能量(hbaromega)小于未掺杂晶体的能量。通过局域顺磁离子Co^(2+)(或Fe)与形成激子的载流子之间的交换作用,澄清了掺杂晶体Bi12 SiO20在激子光谱区域的逆六谱。Bi12 SiO20的主要内部缺陷(Bi_Si^(3+) +h^+)在Bi12 SiO20中描述了未掺杂晶体中的这种效应。根据简化模型,配体离子O^-与该缺陷中连接激子(e^-+h^+)的一次交换作用对缺陷中V((hbaromega))的6的变化。
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引用次数: 0
Impact of Workplace Influencers on Performance 职场影响者对绩效的影响
Pub Date : 2021-06-28 DOI: 10.9734/bpi/aaer/v16/9384d
S. Krishnan, B. Balaji
General management programmes have become outdated as management education has progressed. Specialised management programmes are the flavour of the day.  This demands professors having specialised knowledge in one or more of the primary fields. This entails a detailed understanding and assimilation of skills that must be transferred to students pursuing management education. The function of the faculty is critical in generating not only graduates but also citizens who are valued internationally. Only when the workplace is packed with positive vibes and ambience can faculty be focused. The impact of several workplace factors on faculty performance is examined in this research. The influence was decoded using primary data collected from 629 faculty members and regression analysis. Faculty can enjoy development only when they are pushed to achieve greater heights. This necessitates good leadership and continuous mentoring along the way.
随着管理教育的发展,一般管理课程已经过时了。专业管理课程是当今的潮流。这就要求教授在一个或多个主要领域具有专业知识。这需要详细了解和吸收必须转移到追求管理教育的学生的技能。学院的功能不仅对培养毕业生,而且对培养受国际重视的公民至关重要。只有当工作场所充满了积极的氛围和氛围,员工才能集中精力。本研究考察了几个工作场所因素对教师绩效的影响。利用从629名教师中收集的原始数据和回归分析来解码影响。教师只有被推向更高的高度,才能得到发展。这需要良好的领导和持续的指导。
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引用次数: 0
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Advanced Aspects of Engineering Research Vol. 16
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