Results 81 to 90 of about 11,441 (205)

Slope-Assisted Brillouin-Based Distributed Fiber-Optic Sensing Techniques

Advanced Devices & Instrumentation, 2021
Brillouin-based fiber-optic sensing has been regarded as a powerful distributed measurement tool for monitoring the conditions of modern large civil and geotechnical structures, since it provides continuous environmental information (e.g., temperature ...
Xinyu Fan, Bin Wang, Guangyao Yang, Zuyuan He   +3 more
doaj   +1 more source

Development and Testing of a Low‐Cost Soil Moisture Sensor for Real‐Time Irrigation Scheduling

Irrigation and Drainage, Volume 75, Issue 1, Page 173-187, February 2026.
ABSTRACT Effective irrigation scheduling is essential for improved water management in irrigated areas, with soil moisture monitoring recognized as one of the most effective methods. However, challenges such as the high cost of sensors and the difficulties in monitoring large areas hinder their practical application, particularly for smallholder ...
Edmealem Temesgen Ebstu, Samuel Dagalo Hatiye, Demelash Wendimagegnehu Goshime, Johannes Dirk Dingemanse, Demiso Daba Dugassa, Tafesse Fitensa, Getachew Enssa, Chanako Dane Chare, Destaw Akil Areru, Yared Godine Demeke   +9 more
wiley   +1 more source

A Long Distance Phase-Sensitive Optical Time Domain Reflectometer with Simple Structure and High Locating Accuracy

Sensors, 2015
A phase-sensitive optical time domain reflectometer (Φ-OTDR) can be used for pipeline security. However, the sensing distance (less than 20 km) of traditional Φ-OTDR is too short for the needs of typical oil and gas pipeline monitoring applications (30 ...
Yi Shi, Hao Feng, Zhoumo Zeng
doaj   +1 more source

Surface Symphony: Orchestrating DPPC/DOPC Monolayer Behavior

Microscopy Research and Technique, Volume 89, Issue 2, Page 207-217, February 2026.
Langmuir trough and atomic force microscopy reveals the physical nature of DPPC and DOPC mixed monolayers. ABSTRACT This study investigates the impact of environmental factors and lipid composition on the structural and morphological properties of DPPC/DOPC (1,2‐Dipalmitoyl‐sn‐glycero‐3‐phosphocholine/1,2‐dioleoyl‐sn‐glycero‐3‐phosphocholine ...
Wisnu Arfian A. Sudjarwo, Jose L. Toca‐Herrera   +1 more
wiley   +1 more source

Development of a Multiperimeter Sensing System Based on POTDR

IEEE Photonics Journal, 2018
Polarization optical time-domain reflectometry (POTDR) is sensitive to perturbations on any point of the fiber under test (FUT). However, restricted by the sensing principle, the signal of the front perturbation would mask the signals of the rear ones ...
Feng Wang, Yuancheng Zhang, Wei Wang, Rongrong Dou, Jianlun Lu, Weihong Xu, Xuping Zhang   +6 more
doaj   +1 more source

Time-resolved collapse and revival of the Kondo state near a quantum phase transition

, 2018
One of the most successful paradigms of many-body physics is the concept of quasiparticles: excitations in strongly interacting matter behaving like weakly interacting particles in free space. Quasiparticles in metals are very robust objects. Yet, when a
Fiebig, M., Kliemt, K., Krellner, C., Kroha, J., Pal, S., Stockert, O., von Loehneysen, H., Wetli, Ch.   +7 more
core   +1 more source

Numerical and Theoretical Studies of Radiation from Plasma Dipole and its Applications [PDF]

, 2020
Department of PhysicsThe localized plasma dipole oscillation technique was first proposed by Kwon K. et al in 2016 as an efficient terahertz radiation source [1].
Kylychbekov, Salizhan
core  

Bearing Capacity of Tension Steel Piles in Thinly Inter‐Layered Soils: Numerical Class‐A Prediction vs. Field Measurements

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 3, Page 1430-1450, 25 February 2026.
ABSTRACT This study investigates the bearing capacity of tension piles and pile‐soil interaction during loading. Discrepancies between predicted and measured bearing capacities in previous tests motivated the study, where analytical methods showed considerable scatter and uncertainties in design.
Diaa Alkateeb, Jürgen Grabe
wiley   +1 more source

Combined Attenuation and High-Resolution Fault Measurements Using Chaos-OTDR

IEEE Photonics Journal, 2015
We propose a combined attenuation and high-resolution fault measurement method using chaos optical time-domain reflectometry (OTDR). Utilizing the pulse-modulated chaotic light and correlation operation, this technique realizes fiber attenuation ...
Xiangyu Dong, Anbang Wang, Jianguo Zhang, Hong Han, Tong Zhao, Xianglian Liu, Yuncai Wang   +6 more
doaj   +1 more source

Investigation on the Coherent Component of SHARAD Surface Echo and Surface Roughness: Scaling Behavior and Influence of Hurst Exponent

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract The radar surface echo can be separated into coherent and incoherent components by statistical approaches, and the coherent component can be described by a backscattering model related to the RMS height. According to backscattering models for fractal surfaces, the coherent power in decibels decreases with RMS height on a scale independent of ...
Tiansheng Hong, Yan Su, Elena Pettinelli, Roberto Orosei, Sebastian Emanuel Lauro, Zhibin Li, Chunyu Ding, Elisabetta Mattei, Barbara Cosciotti, Chunlai Li   +9 more
wiley   +1 more source