Sensors and Actuators A-physical最新文献

{"title":"Elastomeric encapsulation assisted stability enhancement of polymeric temperature sensor","authors":"Kamalesh Tripathy,&nbsp;Mitradip Bhattacharjee","doi":"10.1016/j.sna.2026.117462","DOIUrl":"10.1016/j.sna.2026.117462","url":null,"abstract":"<div><div>A highly sensitive, stable, and flexible temperature sensor is in high demand for numerous applications such as robotics, e-skin, healthcare, etc. Flexible sensors are prone to high mechanical stress during the fabrication process as well as during operation. Sensor packaging with proper encapsulation prevents unwanted damage to the sensor, increasing its longevity. Keeping this in mind, we fabricated a flexible polydimethylsiloxane (PDMS) encapsulated temperature sensor on a PET (polyethylene terephthalate) for human body temperature measurement. The active layer for the sensor is a composite of Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), graphene oxide (GO), 3-Glycidyloxypropyltrimethoxysilane (GPTMS), and Triton X-100. The developed sensor demonstrates high mechanical strength and flexibility. The PDMS encapsulation improves the sensitivity, response time, and makes the sensor more resilient against both cyclic and static bending deformation. The encapsulated sensor has a sensitivity of 0.83 %/°C with a fast response time of 19 sec. and a recovery time of 38 s against the hotplate surface (ceramic) and it shows improved response time of ∼5.8 s when tested on human skin. Further, PDMS encapsulation enables the sensor to withstand a bending radius as small as 0.15 cm for tensile bending and up to 0.2 cm for compressive bending.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"400 ","pages":"Article 117462"},"PeriodicalIF":4.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145969156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Voiceprint features and CNN for label-free identification of Na-alginate microdroplet size and concentration during high-frequency generation","authors":"Peng-Nian Chen,&nbsp;Chia-Hung Dylan Tsai","doi":"10.1016/j.sna.2026.117467","DOIUrl":"10.1016/j.sna.2026.117467","url":null,"abstract":"<div><div>A voiceprint-based method was developed for label-free and non-contact identification of Na-alginate microdroplet properties during high-frequency (<span><math><mo>∼</mo></math></span>1 kHz) generation using a simple microphone setup. The generation of alginate microdroplets enables mass production in applications such as drug delivery and cell encapsulation, while the monitoring of droplets’ properties remains challenging. Conventional labeling-based or electrical methods can be costly and intrusive. In this study, sounds emitted from a coaxial microfluidic device were analyzed via short-time Fourier transform (STFT), and spectral features were input into a convolutional neural network (CNN) for droplet concentration estimation. Experimental results show that the sound’s spectral energy increased by 1.5 fold as the droplet diameter increased from 60 to 120 <span><math><mi>μ</mi></math></span>m, attributed by varying the inner capillary diameter from 10 to 30 <span><math><mi>μ</mi></math></span>m. Changes in Na-alginate concentration from 0.0 to 2.0 wt.% produced systematic shifts in spectral centroid and bandwidth, reflecting variations in droplet viscosity. The CNN model achieved a concentration estimation accuracy with a root mean square error of 0.1 wt.%. These results demonstrate that the proposed voiceprint-based approach provides a simple, accurate, and cost-effective alternative for monitoring microdroplet properties, while its millisecond-level detection speed makes the method practical for rapid microencapsulation and other fast-throughput processes.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"400 ","pages":"Article 117467"},"PeriodicalIF":4.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Highly sensitive and selective ethanol detection at low temperature via pulse laser deposited V₂O₅ thin film","authors":"Rohit Kumar ,&nbsp;Puja Ghosh ,&nbsp;Anurag Gupta ,&nbsp;C.S. Prajapati","doi":"10.1016/j.sna.2026.117513","DOIUrl":"10.1016/j.sna.2026.117513","url":null,"abstract":"<div><div>This study presents a highly sensitive, selective, and stable ethanol sensor based on an amorphous V₂O₅ thin film deposited via pulsed laser deposition technique. The sensor operates effectively at a low temperature of 100 °C under low bias voltage of 5 V, achieving a detection limit of 40 ppm. Detailed characterization of thin film sensor was investigated using XRD, TG-DTA, Raman spectroscopy, FESEM, AFM, and XPS. UV-PL spectroscopy reveals an optical band gap of 2.7 eV, further indicating the presence of oxygen vacancies. I–V measurements demonstrate Ohmic-type conduction behavior. The sensor shows a consistent and robust ethanol response of ∼106 % to 120 ppm ethanol, with rapid response and recovery times of ∼13 s and ∼19 s, respectively. It also displays exceptional selectivity over interfering gases such as CH₄, C₂H₆CO, NH₃, NO₂, and CO, with a sensitivity of approximately 100 % at lowest 40 ppm concentration. Additionally, the device maintains high repeatability and long term operational stability across multiple testing cycles and sustained monitoring over 60 days. These findings underscore the potential of amorphous V₂O₅ thin films for ethanol sensing applications in industrial safety, environmental surveillance, and medical diagnostics in breath-based disease detection.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"400 ","pages":"Article 117513"},"PeriodicalIF":4.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A flexible miniatured wearable device for monitoring lactic acid and pH in sweat","authors":"Shengzhao Zhang ,&nbsp;Jiaxin Li ,&nbsp;Xinrui Qiu ,&nbsp;Lei Xuan ,&nbsp;Yuyang Xu ,&nbsp;Jian Li ,&nbsp;Haibo Xing ,&nbsp;Guangli Liu ,&nbsp;Runhuai Yang","doi":"10.1016/j.sna.2026.117478","DOIUrl":"10.1016/j.sna.2026.117478","url":null,"abstract":"<div><div>Wearable sensor devices are crucial for monitoring physiological states and biochemical markers. A device that combines circuit miniaturization with accurate biochemical monitoring is essential for achieving long-term, continuous physiological tracking without burdening the user. In this paper, we introduce a flexible miniatured wearable device for simultaneous monitoring of sweat pH and lactate. The device is composed of a miniatured wireless flexible printed circuit board (FPCB, 25 mm×11 mm) and a flexible polyaniline (PANI) sensing patch which has good linearity, stability, and ion selectivity. Every component on the FPCB was meticulously selected to achieve a compact form factor, and a guard ring structure was used in the PCB layout to reduce the voltage decrease of the pH sensing patch. The resulting flexible, miniatured, and wearable (FMW) device features a low minimum detection volume threshold (20 μL) making it well-suited for low-volume biofluids such as sweat, which is typically secreted gradually rather than abundantly. Practical applicability was demonstrated through tests on artificial sweat, volunteer sweat, and other samples, confirming the accuracy for non-invasive monitoring. The low-power design enables prolonged operation, supporting continuous use for over 10 days. This FMW system enables for dual sweat biomarker monitoring and holds significant promise for providing user-friendly health assessments.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"400 ","pages":"Article 117478"},"PeriodicalIF":4.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Branch-scalable universal miniature pneumatic system with programmable positive and negative pressure for soft robots","authors":"Xiaofeng Yu ,&nbsp;Dong Mei ,&nbsp;Gangqiang Tang ,&nbsp;Lijie Li ,&nbsp;Yanjie Wang","doi":"10.1016/j.sna.2026.117521","DOIUrl":"10.1016/j.sna.2026.117521","url":null,"abstract":"<div><div>In soft robotics, pneumatic actuation is highly valued for its quick response, eco-friendliness, and affordability. Pneumatic systems are essential in pneumatic soft robots, as their movements depend on pressure states. However, existing pneumatic systems often face challenges such as large size, single type of pressure output, the ability to provide only a single type of air pressure, and the inability to expand air branches. These problems hinder the development of integrated and intelligent pneumatic soft robots. In this work, we designed a miniature pneumatic system to provide hardware support for the integration and intelligence of pneumatic soft robot. The miniature pneumatic system using minimal components can expand the air branches according to the robotic requirements, and each air branch can independently program the output positive and negative pressure. Based on the design concept and system configuration, special inflation and deflation strategies, along with closed-loop pressure control strategies, have been proposed to achieve precise pressure control. Subsequently, we designed and manufactured a prototype pneumatic system with three independent air supply branches. Experimental results indicate that the pneumatic system can achieve a wide pressure range from −63–102 kPa, and the speed of inflation and deflation is controllable. Finally, we demonstrated three robotic applications and designed relevant algorithms to verify the feasibility and practicality of the pneumatic system. The proposed pneumatic design can meet the pressure control requirements of various soft robots driven by both positive and negative pressure. It can serve as a universal miniature pneumatic system, which is significant for the development of untethered pneumatic soft robots.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"400 ","pages":"Article 117521"},"PeriodicalIF":4.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trapezoidal sandwiched dual-layer hot-film sensors for highly sensitive and spatial-resolved wall shear stress measurement: A static investigation","authors":"Daoyuan Wang ,&nbsp;Jinjun Deng ,&nbsp;Yuchao Yan ,&nbsp;Binghe Ma ,&nbsp;Jian Luo ,&nbsp;Weizheng Yuan","doi":"10.1016/j.sna.2026.117524","DOIUrl":"10.1016/j.sna.2026.117524","url":null,"abstract":"<div><div>The measurement of wall shear stress using MEMS hot-film sensors has received considerable attentions. However, the substrate heat losses and axial diffusion effects fundamentally constrain the sensitivity and spatial resolution of MEMS hot-film sensors. In this work, a novel trapezoidal sandwiched dual-layer hot-film sensor with both reduced substrate and axial diffusion effects is proposed and micro-fabricated. This paper aims to verify and clarify the improvements in steady-state response and the space-resolved capacity of hot-film sensors using the proposed dual-layer active thermal insulation strategy. Both static calibration experiments and numerical simulations were conducted to achieve this. The trapezoidal sandwiched dual-layer sensor shows over 100 % improvement in output voltage sensitivity compared to its single-layer counterpart within a wall shear stress range from 0 to 5 Pa. We emphasize and clarify that the widely used sensitivity metric based on total heating power is inadequate for dual-layer hot-films. Instead, a more preferable metric relating to the relative net heating power, reveals that the newly proposed sensor exhibits 11 times the sensitivity of its single-layer counterpart and 6 times that of the previously reported dual-layer sensors. Besides, the effective sensing length of the trapezoidal sandwiched dual-layer sensors is no more than twice its physical size. Meanwhile, axial diffusion is greatly reduced, based on which the well-known conflicting constraint between spatial resolution and edge effects of conventional hot-films could be loosened. The confirmed reductions in substrate and axial diffusion open new opportunities for high-quality wall shear stress measurement using thermal sensors in the future.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"400 ","pages":"Article 117524"},"PeriodicalIF":4.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Single-sided capacitive pressure sensor with tunable performance over a wide pressure range","authors":"Vanessa Barton ,&nbsp;Hridyesh Tewani ,&nbsp;Xiangyu Sun ,&nbsp;Christian Franck ,&nbsp;Pavana Prabhakar ,&nbsp;Joseph Andrews","doi":"10.1016/j.sna.2026.117501","DOIUrl":"10.1016/j.sna.2026.117501","url":null,"abstract":"<div><div>Flexible pressure sensors have a wide range of applications, including human body monitoring and robotic control. Recent work has focused on developing pressure sensors that excel at measuring pressure in the ultrasensitive range, often with parallel plate piezocapacitive sensors and a dielectric that relies on pores or microstructures. However, these approaches have a few drawbacks, including a limited pressure range and high complexity, leading to expensive and time-consuming manufacturing. To mitigate these problems, here we demonstrate the fabrication of a low-cost, flexible, interdigitated electrode (IDE) pressure sensor with an overlaid layered elastomer composed of polydimethylsiloxane (PDMS) and barium titanate (BaTiO₃). The elastomers are manipulated by modifying the mixing ratio, curing temperature, and incorporation of BaTiO₃. Characterization of these elastomers under compression at two strain rates allows for insight into their behavior and the tunability of the layered macrostructure. Additionally, the IDE geometry is explored with emphasis on the effect of the number of fingers, finger length, finger width, and gap width. As a result, the leading IDE geometry can be tuned to work in a lower pressure range with a higher sensitivity of 1.654 % kPa⁻¹ from 0 to 10 kPa and 0.053 % kPa⁻¹ from 10 to 100 kPa, or in a larger range with a sensitivity of 0.53 % kPa⁻¹ from 0 to 10 kPa, 0.112 % kPa⁻¹ from 10 to 100 kPa, and 0.009 % kPa⁻¹ from 100 to 500 kPa. The results from all IDE designs are analyzed to fundamentally understand the importance of each geometric parameter for optimizing sensitivity and pressure range.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"400 ","pages":"Article 117501"},"PeriodicalIF":4.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Upconversion nanoparticle-based optical glucose sensing using phosphoresce lifetime spectroscopy excited with 980 nm laser sources","authors":"Esmaeil Heydari ,&nbsp;Amirhossein Moradi ,&nbsp;Javad AmirAhmadi ,&nbsp;Mohammad Moeini ,&nbsp;Hossein Zare-behtash ,&nbsp;Gongxun Bai","doi":"10.1016/j.sna.2026.117533","DOIUrl":"10.1016/j.sna.2026.117533","url":null,"abstract":"<div><div>Upconversion nanoparticles (UCNPs) hold strong promise for the development of durable, contactless, and implantable photonic sensors owing to the deep tissue penetration of their near-infrared (NIR) excitation source and minimal photodamage by NIR light. Here, we report a Ba₂ErF₇@Ba₂La₄F₇@Ba₂Yb_0.98F₇Tm_0.02@Ba₂La₄F₇ UCNP-based glucose sensor that functions under 980 nm NIR laser excitation. The sensor is comprised of two layers, including an oxygen-sensitive bottom layer of PtTFPP-UCNPs doped in a xerogel film, and a top layer of glucose oxidase (GOx) immobilized within a hydrogel matrix. Excitation of oxygen-sensitive platinum (II) tetrakis(pentafluorophenyl)porphyrin (PtTFPP) complex is mediated by luminescence resonance energy transfer (LRET) from UCNPs. Glucose detection is based on oxygen consumption during the GOx-glucose reaction, which modulates the phosphorescence lifetime of PtTFPP. The glucose level is obtained from the slope of the time-dependent phosphorescence lifetime response instead of conventional end-point phosphorescence lifetime measurements, providing faster glucose quantification. The slope varies linearly with glucose concenrtation, which covers the physiologically relevant levels for detecting abnormalities in diabetic patients. Optical characterization of the sensors revealed a sensitivity of 13.4E-12 µs·dL·mg⁻¹ ·min⁻¹ , a limit of detection (LOD) of 11<span><math><mrow><mspace></mspace><mo>±</mo></mrow></math></span> 1.45 mg/dL, short-term and long-term instabilities of 0.25<span><math><mo>±</mo></math></span>0.02 % and 1.6<span><math><mo>±</mo></math></span>0.9 %, respectively, and a reproducibility of 1.4 %. An in vitro cytotoxicity assay using human dermal fibroblasts (HDFs) demonstrated <span><math><mrow><mn>94</mn><mo>±</mo><mn>7</mn></mrow></math></span> % cell viability after 24 h incubation, confirming excellent biocompatibility of the sensor.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"400 ","pages":"Article 117533"},"PeriodicalIF":4.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a low-frequency ultrasound system for non-invasive temperature measurement of liquids and biological tissue phantoms","authors":"Lichen Su ,&nbsp;Tao Wang ,&nbsp;Chengcheng Ma ,&nbsp;Fei Wang ,&nbsp;Cai Gao ,&nbsp;Liangwei Wu ,&nbsp;Xiaofeng Xuan","doi":"10.1016/j.sna.2026.117531","DOIUrl":"10.1016/j.sna.2026.117531","url":null,"abstract":"<div><div>This work presents and validates a low-frequency, non-invasive method for real-time temperature monitoring using ultrasonic time-of-flight measurements. Low-frequency ultrasound operating at 40 kHz offers better penetration and measurement accuracy than high-frequency ultrasound above 1 MHz, but noise interference remains the primary challenge. By using a local peak flight-time measurement algorithm, an unscented Kalman filtering noise-reduction algorithm, and high-performance circuits and devices, this work accurately establishes the relationship between ultrasound speed and temperature in homogeneous media, including both liquids and biological tissue phantoms. The ultrasound speed-temperature functions of water, silicone oil, and silicone rubber in a specific range were experimentally measured in an acrylic container, and the results corresponded with reference data, verifying the reliability of the system. Furthermore, the method was utilized to characterize the ultrasound speed-temperature effect in an acrylamide hydrogel biological tissue phantom, with results aligning with theoretical expectations for the acoustic properties of water-based materials. Overall, this work demonstrates the feasibility of using an ultrasonic temperature measurement system with superior penetration in simulated biological tissue environments, providing valuable data for non-invasive, real-time monitoring of temperature variations in applications such as thermal therapy or chemical reactions.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"400 ","pages":"Article 117531"},"PeriodicalIF":4.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ionic wind characteristics of electromagnetic plasma micro-actuator","authors":"Jisu Sinn ,&nbsp;Youngmin Kim ,&nbsp;Suhyeon Park","doi":"10.1016/j.sna.2026.117534","DOIUrl":"10.1016/j.sna.2026.117534","url":null,"abstract":"<div><div>We propose a novel electromagnetic device that suppresses electrical coupling by minimizing the coupling area between the AC and DC voltage sources, while enabling stable ionic wind generation at a significantly reduced voltage. Lorentz-force-driven carrier injection allows plasma formation across an 8 mm gap at 900 V—an order of magnitude lower than the breakdown voltage for conventional two-electrode devices. The induced airflow is characterized using particle image velocimetry (PIV), revealing flow propagation profile along the substrate and a maximum velocity of 0.4 m/s at 1 W plasma power. Momentum flux analysis of ions and neutral molecules indicates that ionic wind generation arises from both volumetric electrohydrodynamic body force and enhanced jet dynamics. The effectiveness of the ionic wind is further validated using a micro thermal anemometer, and an optimized plasma generation scheme for efficient thermal management is presented.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"400 ","pages":"Article 117534"},"PeriodicalIF":4.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}