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1169 results found

Test scattering parameter calibration data for on-wafer measurements from 10 MHz to 110 GHz - Calnet

Data provided by  National Institute of Standards and Technology

The data are measurements of test scattering parameter calibration data for on-wafer measurements from 10 MHz to 110 GHz. Data includes S-parameter data (Ref_Cs_g25_HF_0.s2p, Ref_Rs_g25_HF_0.s2p, Ref_L1_g25_HF_0.s2p, Ref_S1_g25_HF_0.s2p, Ref_Rg_g25_HF_0.s2p, Ref_Og_g25_HF_0.s2p, Ref_L2_g25_HF_0.s2p, Ref_L3_g25_HF_0.s2p, Ref_L4_g25_HF_0.s2p, Ref_L5_g25_HF_0.s2p, Ref_L6_g25_HF_0.s2p, Ref_L7_g25_HF_0.s2p, Ref_L8_g25_HF_0.s2p, Ref_L9_g25_HF_0.s2p). Data is in an *.s2p format. The format is "# GHZ S RI R 50".

Tags: On-Wafer,S-parameter,110 GHz,sapphire,multiline TRL,SOLT,series resistor,check standards,vector network analyzer,probes,impedance,propagation constant,Calnet,

Modified: 2025-04-06

Small-Signal Model Verification and Analysis of Unmatched Multi-Finger HBT Cells at 220 GHz

Data provided by  National Institute of Standards and Technology

This dataset contains the simulated and calibrated measured scattering parameters (S-parameters) of a via, a short-circuit manifold test structure, a single heterojunction bipolar transistor (HBT) in common emitter (CE) configuration, and a 4-finger CE HBT cell. Six sites of the single CE HBT device were measured and five sites of the 4-finger CE HBT cell were measured. Bias point for all transistors was at V_ce: 2 V and J_c: 9.62mA/um^2.

Tags: common-base,common-emitter,HBT,InP,model,On-Wafer,S-parameters,stability,WR5.1,

Modified: 2025-04-06

9,10-Dihydrophenanthrene: Experimental and Derived Thermodynamic Properties

Data provided by  National Institute of Standards and Technology

This document is part of a series of reports describing experimental property measurements completed at the National Institute for Petroleum and Energy Research (NIPER) in Bartlesville, Oklahoma, in the 1980s and 1990s. Members of the Bartlesville Thermodynamics Group included William D. "Bill" Good, William V. "Bill" Steele, Bruce E. Gammon, Norris K. Smith, Stephen E. Knipmeyer, An "Andy" Nguyen, Timothy D. Klots, I. A. "Alex" Hossenlopp, Aaron P. Rau, William B. Collier, John F. Messerly, Ann G. Osborn, Susan Lee Bechtold, Donald G. Archer, Ian R.

Tags: density,vapor pressure,enthalpy of formation,heat capacity,thermodynamic functions,

Modified: 2025-04-06

Radio Access Network Anomalous State Detection Dataset

Data provided by  National Institute of Standards and Technology

This project [1] produced two types of data: Working Data and Derived Data. The Working Data includes raw measurements collected from a Radio Access Network (RAN) utilizing commercial-off-the-shelf (COTS) hardware. These measurements were gathered at multiple layers of the Long-Term Evolution (LTE) protocol stack within the RAN, in both a baseline state with encrypted data and an anomalous state with encryption disabled.

Tags: Anomalous state detection,cellular communication security,measurement stability,metrology,multi-feature detection,multi-layer architecture,radio access network.,

Modified: 2025-04-06

Dual-Frequency-Bias Programmable Josephson Voltage Standard Circuit

Data provided by  National Institute of Standards and Technology

This paper presents a 2 V programmable Josephson voltage standard with dual microwave frequency inputs and multiple output taps. The design provides three main features: (1) output voltages with nanovolt resolution, (2) the ability to perform a microwave frequency self-check based on a null voltage measurement, and (3) additional voltage output taps providing simultaneous 10:1 (or 5:1) divided voltage reference for resistive divider calibration. With low heat dissipation this device is well suited for implementation with a compact cryocooler as a turnkey traveling system.

Tags: Josephson arrays,Measurement techniques,Precision measurements,standards,superconducting integrated circuits,voltage measurement,

Modified: 2025-04-06

Trojan Detection Software Challenge - mitigation-image-classification-jun2024-train

Data provided by  National Institute of Standards and Technology

mitigation-image-classification-jun2024-train datasetThis is the training data used to create and evaluate trojan detection software solutions. This data, generated at NIST, consists of image classification AIs. A known percentage of these trained AI models have been poisoned with a known trigger which induces incorrect behavior. This data will be used to develop software solutions for mitigating/removing that trigger behavior from the trained AI models. This dataset consists of 288 AI models using a small set of model architectures.

Tags: Trojan Detection; Artificial Intelligence; AI; Machine Learning; Adversarial Machine Learning;,

Modified: 2025-04-06

Data for "Quantum state tracking and control of a single molecular ion in a thermal environment''

Data provided by  National Institute of Standards and Technology

Supplementary data for the article "Quantum state tracking and control of a single molecular ion in a thermal environment" by Yu Liu, Julian Schmidt, Zhimin Liu, David R. Leibrandt, Dietrich Leibfried, Chin-wen Chou, submitted to Science in 2024. The manuscript describes a quantum state-specific investigation of the molecular state evolution of a single CaH+ ion in a thermal environment.

Tags: Molecular quantum state control,molecular physics,quantum information,chemical physics,

Modified: 2025-04-06

Voltammogram Data Associated with Manuscript titled: "Strategies for Assessing the Limit of Detection in Voltammetric Methods: Comparison and Evaluation of Approaches."

Data provided by  National Institute of Standards and Technology

This data set contains the instrument files (.pssession) as well as the extracted voltammogram data as (.xlsx) for voltammetric analysis of lead, diphenylamine, ferrocyanide, naltrexone, and acetaminophen collected during the generation of calibration curves and serial dilutions. Ferrocyanide data was collected via cyclic voltammetry between -300 mV and +700 mV with a scan rate of 100 mV/s and a potential sweep of 2 mV.

Tags: voltammetry,square-wave,cyclic voltammetry,electrochemistry,limit of detection,performance measures,validation parameters,Forensic Science,Forensic Chemistry,

Modified: 2025-04-06

Data set for: "Compact Homodyne Extrapolation System (CHEXS)"

Data provided by  National Institute of Standards and Technology

Data set for figures in the paper titled "Compact Homodyne Extrapolation System (CHEXS)".Abstract: We present on a novel gain extrapolation antenna range, the Compact Homodyne Extrapolation System (CHEXS), that can achieve absolute antenna gain measurements with uncertainties of +/-0.1 dB or better with as few at 10 data points and is significantly more compact, up to six times shorter than conventional gain extrapolation ranges.

Tags: antenna gain,gain extrapolation,

Modified: 2025-04-06

Adult brain T1 and T2 values measured at 3 T using magnetic resonance fingerprinting with phantom validation

Data provided by  National Institute of Standards and Technology

Test-retest MRI T1 and T2 relaxation maps obtained using magnetic resonance fingerprinting at 3 T. Maps of 20 participants and of a phantom imaged either immediately before or after an in vivo measurement.

Tags: MRI,T1,T2,phantom validation,magnetic resonance fingerprinting,

Modified: 2025-04-06