Engineered Science最新文献_第8页

Rice Husk as a Source for Lightweight Flameless Heat-Energy Carbon Briquettes 稻壳作为轻质无焰热能型炭块的来源

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es935

Zhumakhan K, Tileuberdi Ye, Biysenbayev M, Ongarbayev Ye, Zhanbekov K, Godbert N, Tastambek K, Oliviero Rossi C

{"title":"Rice Husk as a Source for Lightweight Flameless Heat-Energy Carbon Briquettes","authors":"Zhumakhan K, Tileuberdi Ye, Biysenbayev M, Ongarbayev Ye, Zhanbekov K, Godbert N, Tastambek K, Oliviero Rossi C","doi":"10.30919/es935","DOIUrl":"https://doi.org/10.30919/es935","url":null,"abstract":"Herein we present a new method for producing fuel briquettes from rice husk, which can be used both individually or in combination. The designed briquettes are light-weighted and characterized by a flameless combustion that do not emit toxic substances during burning. These new briquettes were shaped from amorphous carbon obtained by carbonization of rice husks that was carried out in an inert atmosphere (N 2 /Ar) at the temperature 450 °C, followed by desilication using caustic soda for 2 hours and demineralization using nitric acid for 2 hours. To the thus obtained raw material, carboxymethyl cellulose (CMC) used as biobinder was added to form the briquettes and bind the carbon-based materials. In order to obtain briquettes of suitable hardness for all purposes ( ca. 30 MPa of briquette strength), 20% of biobinder was necessary. Oxygenating reagents (NaNO 3 and NH 4 NO 3 ) were also added to ensure high performant briquette flameless combustion. Based on the fact that these briquettes are mainly carbon-based materials with the containing 70-90% and therefore are characterized with a rather light overall weight during 30-38 g.","PeriodicalId":36059,"journal":{"name":"Engineered Science","volume":"129 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86378919","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

Data-Driven Modeling for Stability Evaluation of Cylindrical Boreholes with Slurry in Anisotropic and Non-Homogeneous Clays 各向异性非均质粘土中泥浆圆柱形钻孔稳定性评估的数据驱动模型

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es921

Khamnoy Kounlavong, J. Shiau, Van Qui Lai, V. B. Chauhan, P. Jamsawang, S. Keawsawasvong

引用次数: 1

The Fuel Production for Diesel Engine from Catalytic Pyrolysis of Plastic Waste 塑料废弃物催化热解生产柴油机燃料的研究

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es964

Nattadon Pannucharoenwong, Keyoon Duanguppama, Kumpanat Chaiphet, Chinnapat Turakarn, Snunkhaem Echaroj, Phadungsak Rattanadecho

引用次数: 0

Boosting microwave absorption performance of bio-gel derived Co/C nanocomposites 提高生物凝胶衍生Co/C纳米复合材料的微波吸收性能

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es988

Yiming Zhong, Dechun Liu, Qiuyun Yang, Yunpeng Qu, Changyou Yu, Kelan Yan, Peitao Xie, Xiaosi Qi, Zhanhu Guo, Zhexenbek Toktarbay

引用次数: 2

The Effect of Fly Ash and Tween 20 Combination In Water-In-Crude Oil Emulsions Treatment 粉煤灰与吐温20复合处理原油含水乳状液的效果

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es955

Adilbekova A.O., Faizullayev S., Bayekenov A., Kujawski W.

引用次数: 0

Soft Computing Techniques for Predicting Penetration and Uplift Resistances of Dual Pipelines in Cohesive Soils 粘性土中双管道侵彻阻力和上拔阻力预测的软计算技术

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es897

Divesh Kumar, P. Samui, Warit Wipulanusat, S. Keawsawasvong, Kongtawan Sangjinda, Wittaya Jitchaijaroen

引用次数: 6

An Intelligent Machine Learning Approach for Ovarian Detection and Classification System using Ultrasonogram Images 基于超声图像的卵巢检测与分类系统的智能机器学习方法

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es8d879

K. V, S. S, R. M M, S. K

引用次数: 0

Metal ion (Cr3+, Eu3+, UO22+) adsorption on gibbsite nanoplates 金属离子(Cr3+， Eu3+， UO22+)在三水铝石纳米板上的吸附

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es896

Hailin Zhang, Zhemin Wang, Yatong Zhao, Wenwen Cui, Xin Zhang, Su-Feng Wang, E. Walter, M. Sassi, C. Pearce, Sue B. Clark, K. Rosso

引用次数: 3

A Novel Speech Steganography Mechanism to Securing Data Through Shift Invariant Continuous Wavelet Transform with Speech Activity and Message Detection 一种基于移动不变连续小波变换的语音隐写保护机制

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es950

Surendra Kumar, Arun Singh Yadav, Sanjay Yadav, Niroj Kumar Pani, J. Cotrina-Aliaga, Manuel Antonio Cardoza Sernaqué, Christian Paolo Martel Carranza, Dhiraj Kapila

{"title":"A Novel Speech Steganography Mechanism to Securing Data Through Shift Invariant Continuous Wavelet Transform with Speech Activity and Message Detection","authors":"Surendra Kumar, Arun Singh Yadav, Sanjay Yadav, Niroj Kumar Pani, J. Cotrina-Aliaga, Manuel Antonio Cardoza Sernaqué, Christian Paolo Martel Carranza, Dhiraj Kapila","doi":"10.30919/es950","DOIUrl":"https://doi.org/10.30919/es950","url":null,"abstract":"Steganography is a technique of concealing secret information within an innocuous-looking carrier signal. Speech steganography has become increasingly important in a variety of applications, including military, satellite, and mobile communications. However, conventional methods have failed to meet the maximum-security requirements, resulting in reduced robustness and imperceptibility performance. In this paper, a novel speech steganography mechanism is proposed to address these issues by using shift invariant continuous wavelet transform (SI-CWT) for data hiding. The message data is hidden in the low-level speech bands using pseudo noise sequences, resulting in a steganography output speech signal. To recover the original speech and message signal, a zero-crossing rate (ZCR)-based speech activity and message detection (SAMD) mechanism is applied on the receiver side. The proposed steganography system is evaluated using various performance metrics, including robustness, imperceptibility, and security. Simulation results demonstrate that the proposed system outperforms conventional methods in terms of these metrics, indicating that it is a promising solution for secure speech communication. Additionally, potential limitations and weaknesses of the proposed system are discussed, highlighting the need for further research in this area. Overall, this novel speech steganography mechanism has significant potential for enhancing the security and reliability of speech communication in various applications.","PeriodicalId":36059,"journal":{"name":"Engineered Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89349983","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

Effect of Divalent / Trivalent Doping on Structural, Electrical and Magnetic Properties of Spinel Ferrite Nanoparticles 二价/三价掺杂对尖晶石铁氧体纳米颗粒结构、电学和磁性能的影响

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es8d850

Mahesh B. Khanvilkar, A. K. Nikumbh, R. Pawar, N. J. Karale, P. Nagwade, Deepak V. Nighot, G. Gugale, M. D. Sangale, S. B. Misal, Sharad P. Panchgalle

引用次数: 4