There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

https://www.uta.edu/rfmems/GI_Sensor/papers/ac040049d.pdf

Fiber-Optic Chemical Sensors and Biosensors

Today cross-cutting approaches, where molecular engineering and clever processing are synergistically coupled, allow the chemist to tailor complex hybrid systems of various shapes with perfect mastery at different size scales, composition, functionality, and morphology. Hybrid materials with organic–inorganic or bio–inorganic character represent not only a new field of basic research but also, via their remarkable new properties and multifunctional nature, hybrids offer prospects for many new applications in extremely diverse fields. The description and discussion of the major applications of hybrid inorganic–organic (or biologic) materials are the major topic of this critical review. Indeed, today the very large set of accessible hybrid materials span a wide spectrum of properties which yield the emergence of innovative industrial applications in various domains such as optics, micro-electronics, transportation, health, energy, housing, and the environment among others (526 references).

Applications of advanced hybrid organic–inorganic nanomaterials: from laboratory to market

An increase in world population along with a significant aging portion is forcing rapid rises in healthcare costs. The healthcare system is going through a transformation in which continuous monitoring of inhabitants is possible even without hospitalization. The advancement of sensing technologies, embedded systems, wireless communication technologies, nano technologies, and miniaturization makes it possible to develop smart systems to monitor activities of human beings continuously. Wearable sensors detect abnormal and/or unforeseen situations by monitoring physiological parameters along with other symptoms. Therefore, necessary help can be provided in times of dire need. This paper reviews the latest reported systems on activity monitoring of humans based on wearable sensors and issues to be addressed to tackle the challenges.

Wearable Sensors for Human Activity Monitoring: A Review

Amplitude Interference Immune pH Sensing Devices Based on White Light Interferometry

The need for stablishing International Programs at the universities is particularly relevant in the case of the Engineering Degrees. In a context of progressive industrial globalization, the new engineering students have to be not only competent in technical aspects but also exhibit good skills in terms of foreign languages and intercultural knowledge. In order to attract new students, and particularly the best of them, the Schools of Engineering propose every year an increasing number of International Curriculum Programs. However, the design of these Programs is not an easy task. The need for organizing both a specific enrolment and separate classes makes the design of these Programs very expensive and therefore difficult to implement in small and medium-size universities. In order to avoid these problems, specific cost-efficient International Curriculum Programs have been designed and set up in the School for Industrial and Telecommunications Engineering of the Public University of Navarre (UPNA). These programs do not imply an extra cost for the University and are highly flexible to changes in the number of students interested every year. The results since the Programs were implemented are very satisfactory and show their high effectiveness in terms of reduced costs, positive academic results and high interest of the students.

Design of flexible cost-efficient international engineering curricula at Public University of Navarre

Abs tract In this work, a new optical device based on silver loaded electrospun nanofibers (ENFs) for measuring Relative Humidity is proposed. Fiber mats composed of poly(acrylic acid) and β-cyclodextrin were deposited onto an optical fiber core by electrospinning. Afterwards the ENFs were submitted to thermal curing. Then, the ENFs were loaded with Ag nanoparticles (Ag NPs) synthesized using a Ag + loa ding step and a further reduction step. Several load/reduction cycles were performed. Ag NPs enhance significantly the optical response of the polymer-only fiber mats. The Ag NPs loaded fiber was tested at variations of Relative Humidity (RH). The results showed a very fast response of the absorbance spectra enabling high performance applications such as human breathing monitoring.

P2.4.16 Silver Nanoparticles Loaded Electrospun Nanofibers for Humidity Optical Fiber Sensing

Lossy mode resonance (LMR)-based sensors have attracted much interest during the last decade in the domain of optical fiber (OF). Here, it is shown that the progress made in the transfer of this technology to planar waveguides (PWs) with different sensing applications such as environmental sensors and biosensors. In addition, the inherent advantages in terms of robustness, simplicity, and easiness to generate novel complex structures are discussed.

Lossy Mode Resonance-Based Sensors in Planar Configuration: A Review

In this work a simultaneous refractive index and temperature sensor is presented. The optical structure consists of a soda-lime planar waveguide coated with CuO thin film for the generation of two separated Lossy Mode Resonances (LMRs). One section of the CuO thin film is in contact with the external medium while the other part is coated with a thick layer of PDMS. As result of this, two different resonances are obtained, centered at 600 nm and 1000 nm respectively. The first resonance wavelength is modified by the external medium refractive index, while the second one is only affected by the PDMS refractive index, that due to the thermo-optic effect can be used to measure the ambient temperature. Using this simple structure, a dual sensor has been obtained, showing an RI sensitivity of 1600 nm/RIU and a temperature sensitivity of 1.12 nm/0C.

Ignacio R. Matias

Papers

Amplitude Interference Immune pH Sensing Devices Based on White Light Interferometry

Design of flexible cost-efficient international engineering curricula at Public University of Navarre

P2.4.16 Silver Nanoparticles Loaded Electrospun Nanofibers for Humidity Optical Fiber Sensing

Lossy Mode Resonance-Based Sensors in Planar Configuration: A Review

Simultaneous Measurement of Refractive Index and Temperature using LMR on planar waveguide