The Effect of Post-Fire Disturbances on a Seasonally Thawed Layer in the Permafrost Larch Forests of Central Siberia by Evgenii Ponomarev, Oxana Masyagina, Kirill Litvintsev, Tatiana Ponomareva, Evgeny Shvetsov, Konstantin Finnikov

“…Using Terra and Aqua/MODIS imagery, we analyzed surface temperature (in bands of λ = 10.780–11.280 and 11.770–12.270 μm) coupled with the normalized difference vegetation index (NDVI) for non-disturbed and fire-damaged sites under the same natural conditions of larch forests in Central Siberia. …”
Get full text

On a Data-Driven Approach for Detecting Disturbance in the Brazilian Savannas Using Time Series of Vegetation Indices by Alana Almeida de Souza, Lênio Soares Galvão, Thales Sehn Korting, Cláudio Aparecido Almeida

“…We evaluated the effects of disturbance on these VIs and assessed the accuracy of CCDC-detection in 2019, considering individual VIs, ensemble VIs, and the type of disturbance (savanna clearing and fire). …”
Get full text

Detecting Forest Disturbance in Northeast China from GLASS LAI Time Series Data Using a Dynamic Model by Jian Wang, Jindi Wang, Hongmin Zhou, Zhiqiang Xiao

“…Then, the near-infrared and shortwave-infrared bands of Moderate Resolution Imaging Spectroradiometer (MODIS) surface reflectance are used as auxiliary information to distinguish the types of forest disturbances. …”
Get full text

Proof-of-Concept on Misalignment Compensation for 5.8-GHz-Band Reflectarray Antennas by Varactor Diodes by Keisuke Omoto, Takashi Tomura, Hiraku Sakamoto

“…The stepped misalignment degrades the antenna gain because the phase distribution is disturbed. Adjusting the reflection phase of the deformed elements compensates the disturbed phase distribution and improves the antenna gain. …”
Get full text

The complete mitochondrial genome of the Madagascar banded commodore butterfly Precis andremiaja (Insecta: Lepidoptera: Nymphalidae) by Melanie M. L. Lalonde, Jeffrey M. Marcus

“…The endemic Madagascar banded commodore butterfly Precis andremiaja Boisduval, 1833 (Nymphalidae) inhabits forest margins and disturbed habitats. …”
Get full text

Importance of Tropospheric Correction to C-band InSAR Measurements: Application in the 2018 Palu Earthquake by Panuntun, Hidayat, Heliani, Leni Sophia, Suryanto, Wiwit, Pratama, Cecep

“…The active-phase signals emitted and recorded back by sensors during imaging are easily disturbed by the electron content in the ionospheric layer and the water vapor content in the tropospheric layer. …”
Get full text

Design of Active Vibration Isolation Controller with Disturbance Observer-Based Linear Quadratic Regulator for Optical Reference Cavities by Yuchen Qian, Yong Xie, Jianjun Jia, Liang Zhang

“…Based on the decentralized control strategy, we designed a state-differential feedback controller with a linear quadratic regulator (LQR) and added a disturbance observer (DOB) to estimate the source noise. …”
Get full text

Design of a real-time adaptable decoupled disturbance observer (Addob) on dual-stage controlled HDD systems by Lau, Chan Fan

“…In hard-disk drive (HDD) system, disturbance observer (DOB) is widely used to eliminate external disturbance which is introduced by audio vibration. …”
Get full text

Classification of complex power quality disturbances based on modified empirical wavelet transform and light gradient boosting machine by Jianzhang Wu, Fei Mei, Chenyu Zhang, Huiyu Miao, Kai Li, Jianyong Zheng

“…Abstract Accurate detection and classification of power quality (PQ) disturbances is an essential prerequisite for PQ mitigation. …”
Get full text

Acoustic Roughness Measurement of Railway Tracks: Laboratory Investigation of External Disturbances on the Chord-Method with an Optical Measurement Approach by Florian Mauz, Remo Wigger, Tobias Wahl, Michal Kuffa, Konrad Wegener

“…Displacements and tilting of the sensor array, as well as vibrations, can be compensated to a certain level by the chord method, while a single sensor is significantly disturbed. The combination of four different chord lengths and selection of the theoretically optimal method for each one-third octave band shows an improvement of the measurement result. …”
Get full text

Impacts of Low Disturbance Liquid Dairy Manure Incorporation on Alfalfa Yield and Fluxes of Ammonia, Nitrous Oxide, and Methane by Jessica Sherman, Eric Young, William Jokela, Jason Cavadini

“…Shallow disk injection and aerator/band reduced NH₃ loss by 95 and 52% of broadcast, respectively, however both substantially increased N₂O fluxes (6 and 4.5 kg ha⁻¹ year⁻¹ versus 3.6 kg ha⁻¹ year⁻¹ for broadcast, respectively). …”
Get full text

Abnormal ERPs and Brain Dynamics Mediate Basic Self Disturbance in Schizophrenia: A Review of EEG and MEG Studies by Arthur Hamilton, Georg Northoff

“…This disturbance has been documented phenomenologically and at the level of cognitive tasks. …”
Get full text

Connection of total electron content disturbances with AE index of geomagnetic activity during geomagnetic storm in March 2015 by Belyuchenko K. V., Klimenko M. V., Klimenko V. V., Ratovsky K. G.

“…At all longitudes, we can observe the existence of a band of TEC positive disturbances, located over the geomagnetic equator, and the formation of an after-storm ionospheric effect that appeared as positive TEC disturbances at midlatitude 3–5 days after the geomagnetic storm main phase. …”
Get full text

The Spatially Adaptable Filter for Error Reduction (SAFER) Process: Remote Sensing-Based LANDFIRE Disturbance Mapping Updates by Sanath Sathyachandran Kumar, Brian Tolk, Ray Dittmeier, Joshua J. Picotte, Inga La Puma, Birgit Peterson, Timothy D. Hatten

“…SAFER is a random forest-based supervised classifier and uses predictor variables that are derived from multiple years of pre- and post-disturbance Landsat band observations. Predictor variables include reflectance, indices, and spatial contextual information. …”
Get full text

Gain-clamped two-stage L-band EDFA with a FBG laser in second stage by Harun, Sulaiman Wadi, Ahmad, Harith

“…A gain-clamped two-stage L-band EDFA is demonstrated by simply incorporating two different FBGs on both side of EDF in the second stage. …”

S-band Q-switched fiber laser using molybdenum disulfide (MoS2) saturable absorber by Ahmad, Harith, Ismail, Mohd Afiq, Suthaskumar, M., Tiu, Zian Cheak, Harun, Sulaiman Wadi, Zulkifli, M.Z., Samikannu, S., Sivaraj, S.

“…The resultant Q-switched fiber laser starts with some physical disturbance when the pump power was set at 40 mW and continues to operate until the pump power reaches 120 mW. …”

Novel balanced single/dual‐band bandpass filters based on a circular patch resonator by Qiao Zhang, Chang Chen, Weidong Chen, Jun Ding, Hualiang Zhang

“…Specifically, perturbation vias are presented to disturb the electric field distribution to enhance the CM suppression in the DM passbands, and slots are applied on the circular patch resonators to perturb the current distribution to amend the second DM passband of the dual‐band balanced BPF. …”
Get full text

Study on the Effect of the Guide Vane Opening on the Band Clearance Sediment Erosion in a Francis Turbine by Xijie Song, Xuhui Zhou, Huating Song, Jianhua Deng, Zhengwei Wang

“…Under the small opening, the smaller the opening, the easier the leakage of the band clearance occurs. The unsteady flow in the band chamber will disturb the motion trajectory of particles, change the impact angle of particles, and affect the wear in the band chamber. …”
Get full text

Design and analysis of a dual-band THz metamaterial sensor with high refractive index sensitivity by Xuejing Lu, Xuejing Lu, Hongyi Ge, Hongyi Ge, Yuying Jiang, Yuying Jiang, Yuan Zhang

“…Meanwhile, such ability to operate at two frequency bands enabled the designed sensor could characterize the identical samples at different frequencies, thereby increasing the sensing sensitivity and decreasing the impact of environmental disturbance. …”
Get full text

Disruption of rolandic gamma-band functional connectivity by seizures is associated with motor impairments in children with epilepsy. by George M Ibrahim, Tomoyuki Akiyama, Ayako Ochi, Hiroshi Otsubo, Mary Lou Smith, Margot J Taylor, Elizabeth Donner, James T Rutka, O Carter Snead, Sam M Doesburg

“…Gamma-band ictal desychronization was a stronger predictor of deficits than the presence of the seizure-onset zone or lesion within the motor cortex. …”
Get full text