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Mine Fire Safety Monitoring in Underground Metal Mines: Is Zigbee Wireless Sensor Networks Technology the Best Choice? 地下金属矿山火灾安全监测:Zigbee无线传感器网络技术是最佳选择吗?
Sensor Letters Pub Date : 2020-12-01 DOI: 10.1166/sl.2020.4301
Haoxuan Yu
{"title":"Mine Fire Safety Monitoring in Underground Metal Mines: Is Zigbee Wireless Sensor Networks Technology the Best Choice?","authors":"Haoxuan Yu","doi":"10.1166/sl.2020.4301","DOIUrl":"https://doi.org/10.1166/sl.2020.4301","url":null,"abstract":"Mine fire is a very common and serious problem in mining engineering, and often causes casualties, equipment losses, mine shutdown, resource destruction, and even sulphide dust explosion. So it is of vital importance to monitor mine fire in the engineering projects in order to prevent\u0000 economic losses and casualties. Actually, we have done a lot of engineering projects on mine fire monitoring and have seen a variety of monitoring systems in underground metal mines. Unmodestly speaking, we are experts in this field, therefore, in this viewpoint paper, we mainly introduce\u0000 a few mine fire monitoring methods and technologies according to our practical engineering experience, especially the ZigBee WSN technology and sensors. And in the end of the paper, we have explained “Why is ZigBee WSN technology the best choice in the fire monitoring in the underground\u0000 metal mines at the present stage?”.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84253959","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
Precise Design of Micro-Cantilever Sensor for Biomedical Application 生物医学微悬臂传感器的精确设计
Sensor Letters Pub Date : 2020-12-01 DOI: 10.1166/sl.2020.4305
V. Pachkawade
{"title":"Precise Design of Micro-Cantilever Sensor for Biomedical Application","authors":"V. Pachkawade","doi":"10.1166/sl.2020.4305","DOIUrl":"https://doi.org/10.1166/sl.2020.4305","url":null,"abstract":"This research evaluates the impact of mass loading/perturbations on the characteristics of a micro-size cantilever bio-mass sensor. Design techniques are proposed through the application of the commercial, finite element modelling, and simulation package, i.e., COMSOL multiphysics.\u0000 A finite element model and resulting simulations are provided for both the static and dynamic operation of a bio-mass sensor. In static mode, the obtained result provides the structural stress, strain, and displacement of a sensor against several mass loading conditions (point, edge, and boundary).\u0000 In dynamic mode, shifts in the resonant frequencies of the sensor as a function of mass loading are obtained, which is another viable output of the biosensor. The proposed design and modelling techniques offer a guide in the rapid design and development of precise and efficient biomedical\u0000 instrumentations and/or products.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"110 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84253849","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
Metal Tungstate Based Nanocomposites for Environmental Applications: Photocatalysis Mini-Review 金属钨酸盐基纳米复合材料的环境应用:光催化迷你综述
Sensor Letters Pub Date : 2020-12-01 DOI: 10.1166/sl.2020.4306
M. Mohamed
{"title":"Metal Tungstate Based Nanocomposites for Environmental Applications: Photocatalysis Mini-Review","authors":"M. Mohamed","doi":"10.1166/sl.2020.4306","DOIUrl":"https://doi.org/10.1166/sl.2020.4306","url":null,"abstract":"Photocatalysis is viewed as perhaps the best-progressed treatment measures in eliminating numerous dangerous natural toxins from wastewater. It enjoys numerous benefits, however some downsides are: (i) Fast photogenerated electron–hole recombination productivity, (ii) they restricted\u0000 noticeable light reaction capacity, (iii) low specific surface region, and (iv) the expense of reagents utilization. To improve the economy of the process, it is likewise needed to expand the catalyst’s effectiveness. Consequently, there is an extraordinary requirement for the improvement\u0000 of elite catalysts. This mini-review survey addresses the basics and uses of photocatalytic materials on metal tungstate-based nanocomposites. The mini-review shows how metal tungstate-based nanocom-posites can help take care of ecological issues. This mini-review also expected survey gives\u0000 outlines, synthesis, characterizations, and exploration discoveries in the field of metal tungstate-based nanocomposites for photocatalytic applications in the future examination.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87252332","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
Recent Insights into the Potential of Magnetic Metal Nanostructures as Magnetic Hyperthermia Agents 磁性金属纳米结构作为磁热疗剂潜力的最新见解
Sensor Letters Pub Date : 2020-12-01 DOI: 10.1166/sl.2020.4297
A. R. Aarathy, M. Gopika, S. Pillai
{"title":"Recent Insights into the Potential of Magnetic Metal Nanostructures as Magnetic Hyperthermia Agents","authors":"A. R. Aarathy, M. Gopika, S. Pillai","doi":"10.1166/sl.2020.4297","DOIUrl":"https://doi.org/10.1166/sl.2020.4297","url":null,"abstract":"The advancements in magnetic nanoparticle mediated hyperthermia give so many optimistic and fruitful results that make it a promising and complementary approach for the existing treatment modalities of cancer. This thermotherapy is gaining wide acceptance among the medical community\u0000 compared to the conventional treatment methods. The former provides a local heat generation in the malignant tumor cells and remains non-invasive to the adjacent healthy cells. The increased heating efficiency of magnetic nanoparticles and the control of local therapeutic temperature are the\u0000 main challenges of hyperthermia. Superparamagnetic Iron Oxide nanoparticles have been intensively studied and dominating in magnetic hyperthermia. Recently many researchers successfully demonstrated high heating efficiency and biocompatibility of a wide variety of magnetic metal nanoparticles\u0000 and proposed as the most promising alternative for traditional iron oxides, which opens up a new avenue for magnetic metal nanoparticles in magnetic hyperthermia. The review presents the recent advancements that occurred in the field of metal nanoparticle mediated magnetic hyperthermia. The\u0000 theory underlying heat generation, synthesis methods, biofunctionalization, Specific Absorption Rate studies, challenges and future perspectives of magnetic metal nanoparticles are presented. This will inspire more in-depth research and advance practical applications of metal nanoparticles\u0000 in magnetic hyperthermia.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90911546","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
Solvent Assisted Coaxial-Electrospun Poly Methyl Methacrylate Polymer and Study of Resultant Fibers 溶剂辅助同轴静电纺丝聚甲基丙烯酸甲酯聚合物及其纤维研究
Sensor Letters Pub Date : 2020-12-01 DOI: 10.1166/sl.2020.4296
Arjun Satheesh, A. A. Alagiriswamy, S. Devanand, S. Nithiyanantham
{"title":"Solvent Assisted Coaxial-Electrospun Poly Methyl Methacrylate Polymer and Study of Resultant Fibers","authors":"Arjun Satheesh, A. A. Alagiriswamy, S. Devanand, S. Nithiyanantham","doi":"10.1166/sl.2020.4296","DOIUrl":"https://doi.org/10.1166/sl.2020.4296","url":null,"abstract":"Electrospinning of dispersions with higher viscosity and limited flow may be carried out, based on the solvent assisted coaxial technique, where the flow of the core dispersion is supported by a free flowing sheath solvent. In the present work, the sheath solvents used are chloroform,\u0000 toluene and dimethyl formamide and we discuss the fiber formation of Poly Methyl Methacrylate (PMMA) (dispersion-25 wt%). PMMA dispersed in chloroform is taken as the core solution and the sheath is pure solvent. The In-Situ effect of different sheath solvents in fiber formation at\u0000 two different tip to collector distances are studied. The fibers formed are subjected to SEM analysis and the characteristics are analysed. The fiber formation of high viscos polymer dispersions makes the same materials subjectable to electrospinning and further applications.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81398958","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
Electrical, Optical, Structural Properties with Some Physico-Mechanical of Pure and La3+ Doped L-Alanine Acetate Single Crystals 纯和掺杂La3+的l -醋酸丙氨酸单晶的电学、光学、结构及一些物理力学性质
Sensor Letters Pub Date : 2020-12-01 DOI: 10.1166/sl.2020.4307
A. Senthamizhan, K. Sambathkumar, S. Nithiyanantham, A. A. Alagiriswamy
{"title":"Electrical, Optical, Structural Properties with Some Physico-Mechanical of Pure and La3+ Doped L-Alanine Acetate Single Crystals","authors":"A. Senthamizhan, K. Sambathkumar, S. Nithiyanantham, A. A. Alagiriswamy","doi":"10.1166/sl.2020.4307","DOIUrl":"https://doi.org/10.1166/sl.2020.4307","url":null,"abstract":"Slow evaporation was used to successfully generate single crystals of pure and La3+ doped L-alanine acetate from aqueous solution. The structural, vibrational, chemical analysis carried out through XRD, UV, FTIR with FTRaman Analysis. The Nd: YAG laser was used to confirm\u0000 and estimate the sample’s Second Harmonic Generation (SHG). The growing crystal’s laser damage threshold was also discovered. Thermogravimetic (TG) and Differential theromogravimetric (DTA) studies were used to measure the thermal stability of the formed crystal. The generated\u0000 LAlA crystals were also subjected to dielectric and photoconductivity tests. The dopant has boosted the efficiency of the L-alanine acetate crystal, according to nonlinear optical studies.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77351939","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
Design of a Sensor System Using Fiber Bragg Grating for Liquid Level and Liquid Density Measurement 光纤光栅液位和液体密度传感器系统的设计
Sensor Letters Pub Date : 2020-12-01 DOI: 10.1166/sl.2020.4304
Kalyan Biswas
{"title":"Design of a Sensor System Using Fiber Bragg Grating for Liquid Level and Liquid Density Measurement","authors":"Kalyan Biswas","doi":"10.1166/sl.2020.4304","DOIUrl":"https://doi.org/10.1166/sl.2020.4304","url":null,"abstract":"In this work, a simple but versatile sensing system for very accurate sensing of liquid level and liquid density is presented. The sensor works based on basic strain sensitivity of Fiber Bragg Grating (FBG) and principle of liquid obeying Archimedes’ law of buoyancy. In this system,\u0000 a cylindrical shaped mass suspended from a Fiber Bragg Grating and partially immersed in the liquid to be sensed. If the liquid level in the container or liquid density varies, that change the up thrust on the suspended mass and load on the Fiber will be changed accordingly. The change in\u0000 the load on Fiber changes strain on the FBG and the reflected Bragg wavelength also changes. The proposed device with proper calibration should be able to carry out real time and nonstop liquid level and liquid density measurements. A mathematical analysis of the system considering liquid\u0000 properties and geometrical structure of the suspended mass is presented here. Sensitivity of the system for liquid level monitoring is also reported. Achieved results shows the path for the utilization of the proposed sensor system for precise liquid density measurement and liquid level sensing\u0000 in very large storage tanks used for commercial/residential applications.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73721663","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
Potentiometric Taste Sensing Using Reduced Graphene Oxide Screen Printed Electrodes 使用还原氧化石墨烯丝网印刷电极的电位味觉传感
Sensor Letters Pub Date : 2020-12-01 DOI: 10.1166/sl.2020.4302
A. Patil, U. Tupe, V. Deshmane, A. V. Patil
{"title":"Potentiometric Taste Sensing Using Reduced Graphene Oxide Screen Printed Electrodes","authors":"A. Patil, U. Tupe, V. Deshmane, A. V. Patil","doi":"10.1166/sl.2020.4302","DOIUrl":"https://doi.org/10.1166/sl.2020.4302","url":null,"abstract":"This paper reports the development of simple and economical reduced graphene oxide (rGO) based screen-printed electrodes (SPE) for five basic taste sensing applications. Twenty different test solutions for the five tastes of salty, sour, sweet, umami, and bitter at 1 ppm, 10 ppm, 100\u0000 ppm, 1000 ppm concentration levels were tested with the fabricated SPEs. From experimental results, electrical signals generated between the electrode and test solution interface were measured using the potentiometric method. Satisfactory potentiometric responses of SPEs to different ppm concentrations\u0000 for each sample were used to analyze the sample data. Histogram using the statistical tool was used to analyze the changes in the conductivity response. A multivariate Principal Component Analysis (PCA) statistical tool correlated using loading plots between variables and factors of all the\u0000 five basic tastes. The plot showed the interrelation between variables and test samples. The obtained experimental results from these rGO based SPEs make them suitable for their use in taste sensing applications such as for any taste disorder disability, food-producing industry, pharmaceutical\u0000 industries, etc.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"47 10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89756018","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
Initial Study of Thin-Film Derived Gold Nanoparticles (Au NPs) Surface Plasmon Resonance (SPR) Based Prostate-Specific Antigen (PSA) Detection 基于薄膜衍生金纳米粒子(Au NPs)表面等离子体共振(SPR)检测前列腺特异性抗原(PSA)的初步研究
Sensor Letters Pub Date : 2020-11-01 DOI: 10.1166/sl.2020.4286
M. Dhanunjaya, T. Sonklin, Pimchanok Leuasoongnoen, S. Suksaweang, P. Janphuang, S. Pojprapai
{"title":"Initial Study of Thin-Film Derived Gold Nanoparticles (Au NPs) Surface Plasmon Resonance (SPR) Based Prostate-Specific Antigen (PSA) Detection","authors":"M. Dhanunjaya, T. Sonklin, Pimchanok Leuasoongnoen, S. Suksaweang, P. Janphuang, S. Pojprapai","doi":"10.1166/sl.2020.4286","DOIUrl":"https://doi.org/10.1166/sl.2020.4286","url":null,"abstract":"The gold nanoparticles (Au NPs) localized surface plasmon resonance (LSPR) based detection of prostate-specific antigen (PSA) biomarker was carried out in this work. Au NPs on Si and quartz substrates were synthesized by DC magnetron sputtering method followed by conventional annealing\u0000 protocol. The functionalization of antibody and PSA with Au NPs was evaluated using a simple drop-cost method. The SPR peak intensity was found to be proportional to the PSA concentration. The redshift in SPR peak position might be owing to the change in refractive index around the Au NPs\u0000 with the conjugation of antibody and further additional binding of specific PSA at different concentrations.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74970603","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
Nanostructured Composite Catalyst for Electrochemical Water Splitting: Significantly Improved for Hydrogen Evolution Reaction 电化学水分解纳米复合催化剂:显着改善析氢反应
Sensor Letters Pub Date : 2020-11-01 DOI: 10.1166/sl.2020.4293
Abdul Qayoom Mugheri, Muhammad Soomar Samtio, S. Memon
{"title":"Nanostructured Composite Catalyst for Electrochemical Water Splitting: Significantly Improved for Hydrogen Evolution Reaction","authors":"Abdul Qayoom Mugheri, Muhammad Soomar Samtio, S. Memon","doi":"10.1166/sl.2020.4293","DOIUrl":"https://doi.org/10.1166/sl.2020.4293","url":null,"abstract":"The evolutionary and rational design we incorporated for an efficient nonprecious metal nanocom-posite electrocatalysts for the hydrogen production which is a scientific challenge in the field of renewable energy. Herein, we report a simple and very active, the functional electrocatalyst\u0000 for water oxidation which is highly demanded. It is of great prime importance for hydrogen evolution reaction (HER) which significantly contributes to renewable technologies. The values for electrocatalysts are NiCo2O4 and NiCo2O3/P Tafel slope 66\u0000 and 42 mV/decade and overpotential of 382 and 320 mV and current density achieved at 10 mA/cm2 anin 1.0 M KOH. The composites are characterized by SEM, HR-TEM, X-ray diffraction, XPS, and SAED. The NiCo2O3/P having high durability measured for 50 hours and\u0000 its EIS results holding a small charge transfer resistance 28.81 Ohms (Ω) and capacitance containing 0.81 mF. Finally, we give an outlook for the development of these nanoma-terials in the short- and mid-term, highlighting the critical challenges to confront for a lab-to-real life transition\u0000 of these highly promising nanocomposites.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"64 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76426788","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
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