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A southern hemisphere survey of methanol emission sources in two millimeter wave transitions has been carried out using the ATNF Mopra millimetre telescope. Sixteen emission sources have been detected in the 3(1)-4(0)A+ transition of…

Astrophysics · Physics 2009-10-31 I. E. Valtts , S. P. Ellingsen , V. I. Slysh , S. V. Kalenskii , R. Otrupcek , M. A. Voronkov

We demonstrate the excellent temperature sensing property of a chemically synthesized reduced graphene oxide (rGO). It is found that with increase in temperature from 80 to 375K, the resistivity of reduced graphene oxide monotonically…

Mesoscale and Nanoscale Physics · Physics 2012-09-07 Satyaprakash Sahoo , Sujit K. Barik , G. L. Sharma , Geetika Khurana , J. F. Scott , Ram S. Katiyar

We demonstrate an online (in-situ) sensor for continuous detection of oil contamination in compressed air systems complying with the ISO-8573 standard. The sensor is based on the photo-acoustic (PA) effect. The online and real-time PA…

Instrumentation and Detectors · Physics 2017-04-05 Mikael Lassen , David Baslev Harder , Anders Brusch , Ole Stender Nielsen , Dita Heikens , Stefan Persijn , Jan C. Petersen

We review the current status of liquid noble gas radiation detectors with energy threshold in the keV range, wich are of interest for direct dark matter searches, measurement of coherent neutrino scattering and other low energy particle…

Instrumentation and Detectors · Physics 2013-04-30 Vitaly Chepel , Henrique Araújo

The micro-electromechanical-system (MEMS) force and acceleration sensor utilizing the graphene-induced non-radiative transition was investigated. The graphene-induced non-radiative transition is very sensitive to the distance, and the…

Mesoscale and Nanoscale Physics · Physics 2023-02-17 Guanghui Lia , Fengman Liu , Shengyi Yanga , Jiang-Tao Liu , Weimin Li , Zhenhua Wu

First-principles based calculations were executed to investigate the sensing properties of ammonia gas molecules on two-dimensional pristine black phosphorene towards its application as a gas sensor and related applications. We discuss in…

Materials Science · Physics 2024-05-17 Naresh Kumar , Yogendra K. Gautam , Soni Mishra , Anuj Kumar , Abhishek Kumar Mishra

A new methanol maser line 6(-1)-5(0)E at 133 GHz was detected with the 12-m Kitt Peak radio telescope using remote observation mode from Moscow. Moderately strong, narrow maser lines were found in DR21(OH), DR21-W, OMC-2, M8E, NGC2264,…

Astrophysics · Physics 2009-10-30 V. I. Slysh , S. V. Kalenskii , I. E. Val'tts , V. V. Golubev

The plasma panel sensor (PPS) is an inherently digital, high gain, novel variant of micropattern gas detectors inspired by many operational and fabrication principles common to plasma display panels (PDPs). The PPS is comprised of a dense…

This paper tackles the challenging problem of detecting methane plumes, a potent greenhouse gas, using Sentinel-2 imagery. This contributes to the mitigation of rapid climate change. We propose a novel deep learning solution based on U-Net…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Khai Duc Minh Tran , Hoa Van Nguyen , Aimuni Binti Muhammad Rawi , Hareeshrao Athinarayanarao , Ba-Ngu Vo

The physicochemical processes at the surfaces of semiconductor nanostructures involved in electrochemical and sensing devices are strongly influenced by the presence of intrinsic or extrinsic defects. To reveal the surface controlled…

Materials Science · Physics 2016-05-12 A. Patsha , P. Sahoo , S. Amirthapandian , A. K. Prasad , A. Das , A. K. Tyagi , M. A. Cotta , S. Dhara

With the advancement of sensing technologies over the years, it has become critical to ensure the seamless connectivity of the Internet of Things (IoT) gadgets. With the advancement of communication technology, cellular networks are…

Signal Processing · Electrical Eng. & Systems 2022-07-19 Mobasshir Mahbub , Raed M. Shubair

A highly sensitive refractive index sensor based on grating-assisted strip waveguide directional coupler is proposed. The sensor is designed using two coupled asymmetric strip waveguides with a top-loaded grating structure in one of the…

Applied Physics · Physics 2017-09-27 Parvinder Kaur , M. R. Shenoy

Formaldehyde, a known human carcinogen, is a common indoor air pollutant. However, its real-time and selective recognition from interfering gases remains challenging, especially for low-power sensors suffering from noise and baseline drift.…

Building performance has been shown to degrade significantly after commissioning, resulting in increased energy consumption and associated greenhouse gas emissions. Continuous Commissioning using existing sensor networks and IoT devices has…

Signal Processing · Electrical Eng. & Systems 2022-08-31 Rony Shohet , Mohamed Kandil , Y. Wang , J. J. McArthur

The Multigap Resistive Plate Chamber (MRPC) is a gaseous detector; the performance depends very much on the gas mixture as well as the design. MRPCs are used as a timing device in several collider experiments and cosmic ray experiments…

Instrumentation and Detectors · Physics 2019-03-27 Yongwook Baek , Dowon Kim , M. C. S. Williams

We have developed a new detector of photons and charged particles- a hole-type structure with electrodes made of a double layered resistive material: a thin low resistive layer coated with a layer having a much higher resistivity. One of…

Instrumentation and Detectors · Physics 2008-11-26 G. Charpak , P. Benaben , P. Breuil , A. Di Mauro , P. Martinengo , V. Peskov

SF$_{6}$ is an inert and electronegative gas that has a long history of use in high voltage insulation and numerous other industrial applications. Although SF$_{6}$ is used as a trace component to introduce stability in tracking chambers,…

Instrumentation and Detectors · Physics 2024-07-19 N. S. Phan , R. Lafler , R. J. Lauer , E. R. Lee , D. Loomba , J. A. J. Matthews , E. H. Miller

Today,insulated overhead conductors are increasingly used in many places of the world due to the higher operational reliability, elimination of phase-to-phase contact, closer distances between phases and stronger protection for animals.…

Signal Processing · Electrical Eng. & Systems 2019-07-09 Ming Dong , Jessie Sun , Carl Wang

A new gas detector prototype for the upgrade of the focal plane detector of the MAGNEX large-acceptance magnetic spectrometer has been developed and tested in view of the NUMEN project. It has been designed to operate at low gas pressure…

A novel wireless microstrip-based RF sensor designed for detecting changes in ionic content of water and the addition of solid contaminant objects is proposed and demonstrated. The sensor can be installed on the exterior wall of dielectric…

Signal Processing · Electrical Eng. & Systems 2024-01-26 Sobhan Gholami , EMre Unal , Hilmi Volkan Demir
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