Sensor Letters最新文献_第8页

Power-Delay Trade-Offs in Complementary Metal-Oxide Semiconductor Circuits Using Self and Optimum Bulk Control 互补金属氧化物半导体电路中使用自我和最佳体控制的功率延迟权衡

Sensor Letters Pub Date : 2020-03-01 DOI: 10.1166/sl.2020.4211

Shubham Tayal, Sunil Jadav

引用次数: 1

Design and Development of a Low-Cost Milk Analyzer 低成本牛奶分析仪的设计与开发

Sensor Letters Pub Date : 2020-03-01 DOI: 10.1166/sl.2020.4208

H. Naskar, Siuli Das

引用次数: 1

Electrical Conductivity and Dielectric Properties of Un-Irradiated and γ-Irradiated PVA/NaAlg/LiClO4 Polymer Films 未辐照和γ辐照PVA/NaAlg/LiClO4聚合物薄膜的电导率和介电性能

Sensor Letters Pub Date : 2020-03-01 DOI: 10.1166/sl.2020.4205

S. Suresha, B. Harish, B. Avinash, V. S. Chaturmukha, H. S. Jayanna, A. R. Lamani

{"title":"Electrical Conductivity and Dielectric Properties of Un-Irradiated and γ-Irradiated PVA/NaAlg/LiClO4 Polymer Films","authors":"S. Suresha, B. Harish, B. Avinash, V. S. Chaturmukha, H. S. Jayanna, A. R. Lamani","doi":"10.1166/sl.2020.4205","DOIUrl":"https://doi.org/10.1166/sl.2020.4205","url":null,"abstract":"In the recent work effects of ϒ-irradiation (100 kGy) subject area on the conductivity and dielectric properties of PVA/NaAlg/LiClO4 (45; 45; 10 weight%) films have been investigated. Polymer complex films were made individually by using solution casting and the changes\u0000 in the individuals can be distinguished of films induced by ϒ-irradiation (100 kGy) was examined. These films were submitted to different characterizations such as XRD, FTIR and SEM. XRD studies reveal that the nature of the crystalline is increasing for irradiated polymer films. FTIR\u0000 peak assignments show ϒ-irradiated on films the peak gets shifted, modify its intensity, strengthening of hydrogen bonds. The irradiation forms a cross linking between polymer films. SEM micrograph shows that soft and uniform layer is removed during ϒ-irradiation. Dielectric studies\u0000 for ϒ-irradiated films were analyzed at high and low frequency region shows in that respect is no variation in the dielectric constant and has the same answer from 2.7–14.6 MHz and then increase up to 10 MHz after this it decreases with increase in frequency. The AC conductivity\u0000 of the ϒ-irradiated polymer films were found to be increased with the increment of frequency.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"58 6","pages":"188-193"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72570634","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

Highly Sensitive Voltammetric Catechol Biosensor Based on Electroaddressing of Laccase Encapsulated in Modified Chitosan 改性壳聚糖包封漆酶电寻址的高灵敏度伏安式儿茶酚生物传感器

Sensor Letters Pub Date : 2020-03-01 DOI: 10.1166/sl.2020.4210

H. Galai, N. Rahmouni, P. Namour, A. Bonhomme, F. Bessueille, S. Hentati, N. Jaffrezic‐Renault

引用次数: 3

Design and Simulation of Micro Tactile Sensor for Stiffness Detection of Soft Tissue with Irregular Surface 不规则表面软组织刚度检测微触觉传感器的设计与仿真

Sensor Letters Pub Date : 2020-03-01 DOI: 10.1166/sl.2020.4207

A. Fouly, Ahmed M. R. Fathelbab, A. Abouelsoud, T. Tsuchiya, O. Tabata

{"title":"Design and Simulation of Micro Tactile Sensor for Stiffness Detection of Soft Tissue with Irregular Surface","authors":"A. Fouly, Ahmed M. R. Fathelbab, A. Abouelsoud, T. Tsuchiya, O. Tabata","doi":"10.1166/sl.2020.4207","DOIUrl":"https://doi.org/10.1166/sl.2020.4207","url":null,"abstract":"Tactile sensors become an essential part of many applications in our life. Integrating tactile sensors with surgical tools used in MIS is significant to compensate for the shortage of touch feeling of soft tissues and organs comparing with traditional surgeries. This paper presents\u0000 a detailed design of a micro tactile sensor for measuring the stiffness of soft tissue with an irregular surface. The sensor consists of five cantilever springs with different stiffness. A spring in the middle has a relatively low stiffness surrounded by 4 springs have relatively equal high\u0000 stiffness to compensate for the soft tissue contact error in the longitudinal and lateral directions. Sensor parameters are selected to ensure high sensitivity and linearity with taking into consideration the cross-talk effect among the sensor springs tips. A detailed design of the sensor\u0000 structure in the microscale is conducted based on some constraints related to MEMS fabrication. A finite element analysis (FEA) of the sensor structure is conducted to evaluate sensor structure performance using CoventorWare software. Then, an FEA for the piezo-resistors, as a signal transduction\u0000 method, is conducted which maps the sensor output to an electrical signal. The results prove that the sensor can differentiate among different soft-tissue stiffness within the selected range independent of the applied distance between the sensor and the tissue with an error below 3% even with\u0000 inclination angle between the sensor and the tissue ±3°. Furthermore, a linear performance has been achieved between the soft-tissue stiffness and the sensor output.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"31 1","pages":"200-209"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85615197","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 Nanostructure CdSe/CdS Dot-in-Rods Coated on Flexible Cellulosic Substrate to Improve Photoluminescence Potential of Conducting Fiber 柔性纤维素基上包覆纳米结构CdSe/CdS点棒对提高导电纤维光致发光电位的影响

Sensor Letters Pub Date : 2020-03-01 DOI: 10.1166/sl.2020.4209

S. Patra, B. Mallick

引用次数: 2

Humidity Sensing Behavior of Nano-Particle Size Magnesium Chromites Derived from the Tannery Wastewater 制革废水中纳米颗粒铬铁矿的湿度传感行为

Sensor Letters Pub Date : 2020-02-01 DOI: 10.1166/sl.2020.4203

A. Abdelmoaty, A. Hanna, S. Mousa, M. Sherief, W. A. El-Ghany

{"title":"Humidity Sensing Behavior of Nano-Particle Size Magnesium Chromites Derived from the Tannery Wastewater","authors":"A. Abdelmoaty, A. Hanna, S. Mousa, M. Sherief, W. A. El-Ghany","doi":"10.1166/sl.2020.4203","DOIUrl":"https://doi.org/10.1166/sl.2020.4203","url":null,"abstract":"The aim of this work is recovery the chromium content from the tannery wastewater to decrease the environmental pollution. Also, benefit the extracted chromium compound by study their electrical behavior to be used as humidity sensor device. The chromium content was extracted as a solid\u0000 power by using MgO for precipitation. The prepared dry powder was characterized by different process. The results of the characterizations indicate that the chromium content precipitated as MgCr2O4. The efficiency of separation reaches to 99.98%. The crystalline size\u0000 was calculated by applying Scherer equation, the calculation indicate that the MgCr2O4 formed in nano-sized particles and affected markedly with calcinations. As the calcination temperatures increase from 300 to 900 °C the crystalline size increases from 44.1 to 70.6\u0000 nm, this may due to growth the crystals by calcinations. To study the evaluation of MgCr2O4 as relative humidity (RH) sensors, the dried samples were exposed to different humidities between 22 to 92%. The electrical behaviors of humidity samples were measured to investigate\u0000 the humidity sensing. AC conductivity of both the dry and the humidity samples indicate that the conductivity increases as the humidity increase from 27 to 80 RH%. The variation of conductivity for both dried and humidity samples shows that as the humidity increases from 22 to 80, the conductivity\u0000 increases while above 80% the conductivity greatly increase. From the dependence of the electrical properties of MgCr2O4 on water content, it may conclude that, MgCr2O4 can be used as humidity sensors between 27 to 90%.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"15 1","pages":"101-107"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75198432","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

Enhancement of SO2 Gas Sensing Performance of Co3O4 Spinel by Cu Substitution Cu取代提高Co3O4尖晶石SO2气敏性能

Sensor Letters Pub Date : 2020-02-01 DOI: 10.1166/sl.2020.4199

P. N. Anantharamaiah, S. Giri

引用次数: 4

Optimization of an All-Optical Photonic Crystal NOT Logic Gate Using Switch Based on Nonlinear Kerr Effect and Ring Resonator 基于非线性克尔效应和环形谐振腔的全光光子晶体非逻辑门开关优化

Sensor Letters Pub Date : 2020-02-01 DOI: 10.1166/sl.2020.4200

Elhachemi Kouddad, R. Naoum

引用次数: 7

Analysis of Influencing Factors for Leaching of Acrylamide Monomer from Polyacrylamide-Based Flocculants Used in the Treatment of Sludge Dewatering 污泥脱水处理中聚丙烯酰胺基絮凝剂浸出丙烯酰胺单体的影响因素分析

Sensor Letters Pub Date : 2020-02-01 DOI: 10.1166/sl.2020.4194

Sarfaraz Khan, Huaili Zheng, Qiang Sun, Yongzhi Liu, H. Li, W. Ding, Andrea Navarro

{"title":"Analysis of Influencing Factors for Leaching of Acrylamide Monomer from Polyacrylamide-Based Flocculants Used in the Treatment of Sludge Dewatering","authors":"Sarfaraz Khan, Huaili Zheng, Qiang Sun, Yongzhi Liu, H. Li, W. Ding, Andrea Navarro","doi":"10.1166/sl.2020.4194","DOIUrl":"https://doi.org/10.1166/sl.2020.4194","url":null,"abstract":"Acrylamide (AM) monomer is one of the harmful type substance, are commonly using to produce polyacrylamide (PAMs) flocculants for water treatment. Because of incomplete polymerization, the molecules of AM monomers also in exit marketable polymers. Therefore, discharge of AM from the\u0000 usage of PAM based polymers flocculants in to environment. Currently study focus on, the AM leaching behaviour (emulsion and powder) polymer produced by two different production processes was studied with WTP sludge dewatering as the research object. The flocculants type's effects, Concentration\u0000 of sludge and dosage on the discharge of AM residual monomer in sludge dewatering effluent were studied. The powder form flocculants results show, the regardless of the flocculants concentration and sludge concentration, the leaching concentration is not significant, but in the emulsion flocculants,\u0000 the leaching concentration changes significantly. The Monomers of residual acrylamide be absorbed on the surface of sludge. Sludge concentration plays an active role in improving dehydration efficiency. Considering the trade-off between emulsion and powder polymer, the results of this study\u0000 are related to the water treatment process.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"12 4 1","pages":"128-132"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83472734","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