TOPS ≈ TOPS
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Microcomb-based integrated photonic processing unit Open
The emergence of parallel convolution-operation technology has substantially powered the complexity and functionality of optical neural networks (ONN) by harnessing the dimension of optical wavelength. However, this advanced architecture f…
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Monitoring activity at the Daguangbao mega-landslide (China) using Sentinel-1 TOPS time series interferometry Open
The Daguangbao mega-landslide (China), induced by the 2008 Wenchuan earthquake (Mw = 7.9), with an area of approximately 8 km2, is one of the largest landslides in the world. Experts predicted that the potential risk and instability of the…
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Three‐dimensional displacement field of the 2015 <i>M</i><sub><i>w</i></sub>8.3 Illapel earthquake (Chile) from across‐ and along‐track Sentinel‐1 TOPS interferometry Open
Wide‐swath imaging has become a standard acquisition mode for radar missions aiming at applying synthetic aperture radar interferometry (InSAR) at global scale with enhanced revisit frequency. Increased swath width, compared to classical S…
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The 2014–2015 eruption of Fogo volcano: Geodetic modeling of Sentinel‐1 TOPS interferometry Open
After 20 years of quiescence, Fogo volcano erupted in November 2014. The eruption produced fast‐moving lava flows that traveled for several kilometers and destroyed two villages. This event represents the first episode of significant surfa…
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Thermo-optic phase shifters based on silicon-on-insulator platform: state-of-the-art and a review Open
Silicon photonic platforms offer relevance to large markets in many applications, such as optical phased arrays, photonic neural networks, programmable photonic integrated circuits, and quantum computation devices. As one of the basic tuni…
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Toward full exploitation of coherent and incoherent information in Sentinel‐1 TOPS data for retrieving surface displacement: Application to the 2016 Kumamoto (Japan) earthquake Open
Sentinel‐1's continuous observation program over all major plate boundary regions makes it well suited for earthquake studies. However, decorrelation due to large displacement gradients and limited azimuth resolution of the Terrain Observa…
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A Polarimetric Analysis of Ice Microphysical Processes in Snow, Using Quasi-Vertical Profiles Open
This study implements a new quasi-vertical profile (QVP) methodology to investigate the microphysical evolution and significance of intriguing winter polarimetric signatures and their statistical correlations. QVPs of transitional stratifo…
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Profuse activity of blue electrical discharges at the tops of thunderstorms Open
Thunderstorm clouds may reach the lower stratosphere, affecting the exchange of greenhouse gases between the troposphere and stratosphere. This region of the atmosphere is difficult to access experimentally, and our knowledge of the proces…
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Community of natural lactic acid bacteria and silage fermentation of corn stover and sugarcane tops in Africa Open
Objective: To effectively utilize crop by-product resources to address the shortage of animal feed during the dry season in Africa, the community of natural lactic acid bacteria (LAB) of corn stover and sugarcane tops and fermentation char…
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Terrain Slope Effect on Forest Height and Wood Volume Estimation from GEDI Data Open
The Global Ecosystem Dynamics Investigation LiDAR (GEDI) is a new full waveform (FW) based LiDAR system that presents a new opportunity for the observation of forest structures globally. The backscattered GEDI signals, as all FW systems, a…
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Direct bounds on heavy toplike quarks with standard and exotic decays Open
Heavy vector-like quarks with electric charge $Q=2/3$ (also called \textit{heavy tops}) appear naturally in many extensions of the Standard Model. Although these typically predict the existence of further particles below the TeV scale, dir…
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Interferometric Processing of SLC Sentinel-1 TOPS Data Open
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Impact of the variability in vertical separation between biomass burning aerosols and marine stratocumulus on cloud microphysical properties over the Southeast Atlantic Open
Marine stratocumulus cloud properties over the Southeast Atlantic Ocean are impacted by contact between above-cloud biomass burning aerosols and cloud tops. Different vertical separations (0 to 2000 m) between the aerosol layer and cloud t…
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Measurement of atmospheric CO <sub>2</sub> column concentrations to cloud tops with a pulsed multi-wavelength airborne lidar Open
We have measured the column-averaged atmospheric CO2 mixing ratio to a variety of cloud tops by using an airborne pulsed multi-wavelength integrated-path differential absorption (IPDA) lidar. Airborne measurements were made at altitudes up…
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Improved Ice Velocity Measurements with Sentinel-1 TOPS Interferometry Open
In recent years, the Sentinel-1 satellites have provided a data archive of unprecedented volume, delivering C-band Synthetic Aperture Radar (SAR) acquisitions over most of the polar ice sheets with a repeat-pass period of 6–12 days using I…
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An Assessment of the GEDI Lasers’ Capabilities in Detecting Canopy Tops and Their Penetration in a Densely Vegetated, Tropical Area Open
The Global Ecosystem Dynamics Investigation (GEDI), specifically designed to measure vertical forest structures, has acquired, since April 2019, more than 35 billion waveforms of Earth’s surface on a nearly global scale. GEDI is equipped w…
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Quantum operator growth bounds for kicked tops and semiclassical spin chains Open
We present a framework for understanding the dynamics of operator size, and\nbounding the growth of out-of-time-ordered correlators, in models of large-$S$\nspins. Focusing on the dynamics of a single spin, we show the finiteness of the\nL…
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FixyNN: Efficient Hardware for Mobile Computer Vision via Transfer Learning Open
The computational demands of computer vision tasks based on state-of-the-art Convolutional Neural Network (CNN) image classification far exceed the energy budgets of mobile devices. This paper proposes FixyNN, which consists of a fixed-wei…
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Mirror symmetry for G 2-manifolds: twisted connected sums and dual tops Open
Recently, at least 50 million of novel examples of compact $G_2$ holonomy\nmanifolds have been constructed as twisted connected sums of asymptotically\ncylindrical Calabi-Yau threefolds. The purpose of this paper is to study mirror\nsymmet…
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DOA estimation for wideband signals based on weighted Squared TOPS Open
This paper introduces a new direction-of-arrival (DOA) estimation method for wideband signal sources. The new method estimates the DOA of wideband signal sources based on squared test of orthogonality of projected subspaces (Squared TOPS) …
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Climate impact and energy efficiency of woody bioenergy systems from a landscape perspective Open
The climate impact of bioenergy is debated, especially due to potential land use change effects and biogenic carbon fluxes. This study assessed the climate impact and energy efficiency of conventional long-rotation forest residues (branche…
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Performance of a mid-sized harvester-forwarder system in integrated harvesting of sawmill, pulpwood and firewood Open
Fully mechanized timber harvesting systems are generally characterized by a high operational performance being widespread and used across many regions. Such systems are adaptable to different levels of operational integration, enabling als…
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Vertical variation of ice particle size in convective cloud tops Open
A novel technique is used to estimate derivatives of ice effective radius with respect to height near convective cloud tops (d r e /d z ) from airborne shortwave reflectance measurements and lidar. Values of d r e /d z are about −6 μm/km f…
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Calculation Method for Phenotypic Traits Based on the 3D Reconstruction of Maize Canopies Open
A reasonable plant type is an essential factor for improving canopy structure, ensuring a reasonable expansion of the leaf area index and obtaining a high-quality spatial distribution of light. It is of great significance in promoting effe…
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The New Lifecycle of Women’s Employment: Disappearing Humps, Sagging Middles, Expanding Tops Open
A new lifecycle of women's employment emerged with cohorts born in the 1950s.For prior cohorts, lifecycle employment had a hump shape; it increased from the twenties to the forties, hit a peak and then declined starting in the fifties.The …
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PCR Testing of IVC Filter Tops as a Method for Detecting Murine Pinworms and Fur Mites. Open
We evaluated PCR testing of filter tops from cages maintained on an IVC system through which exhaust air is filtered at the cage level as a method for detecting parasite-infected and -infested cages. Cages containing 4 naïve Swiss Webster …
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FELIX: A Ferroelectric FET Based Low Power Mixed-Signal In-Memory Architecture for DNN Acceleration Open
Today, a large number of applications depend on deep neural networks (DNN) to process data and perform complicated tasks at restricted power and latency specifications. Therefore, processing-in-memory (PIM) platforms are actively explored …
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Oscillations Analysis of Front-Mounted Beet Topper Machine for Biomass Harvesting Open
The beet leaves and tops, which currently are excluded from the production process of sugar, could be an interesting opportunity for the production of renewable energy. Usually, the defoliators are joined with root collar remover machines,…
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Teen online problem solving for teens with traumatic brain injury: Rationale, methods, and preliminary feasibility of a teen only intervention. Open
TOPS-TO intervention is a feasible and acceptable intervention approach. Parents may perceive greater benefit from the family based intervention. Further examination is required to understand the comparative efficacy in improving child and…
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Pre-trained feature aggregated deep learning-based monitoring of overshooting tops using multi-spectral channels of GeoKompsat-2A advanced meteorological imagery Open
Overshooting tops (OTs) play a crucial role in carrying tropospheric water vapor to the lower stratosphere. They are closely related to climate change as well as local severe weather conditions, such as lightning, hail, and air turbulence,…