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53 results found

HVAC SIMulation PLUS other systems (HVACSIM+)

Data provided by  National Institute of Standards and Technology

The first version of HVACSIM+, which stands for "HVAC SIMulation PLUS other systems", was introduced by National Institute of Standards and Technology (NIST) in 1985 as a computer simulation tool to simulate entire building systems. Since then, the HVACSIM+ computer program package and manuals have been distributed to researchers, students, and consultants in more than 40 countries around the world.

Tags: Building control systems,Heating,ventilation and air conditioning equipment,Energy,Energy efficiency,cyber-physical systems,Modeling and simulation research and Numerical methods and software,

Modified: 2024-02-22

Views: 0

SRM 3262 St. John's Wort (Hypericum perforatum L.) Aerial Parts

Data provided by  National Institute of Standards and Technology

SRM 3262 St. John's Wort (Hypericum perforatum L.) Aerial Parts - This Standard Reference Material (SRM) is intended primarily for use in validating analytical methods for the determination of chlorogenic acid, flavonoids, naphthodianthrones, and toxic elements in Hypericum perforatum L. and similar materials. This data is public in the Certificate of Analysis for this material.

Tags: Standard Reference materials,SRM,SRM 3262,St. John's wort,nutrition,dietary supplements,certified value,reference value,Food and Nutrition,

Modified: 2024-02-22

Views: 0

SRM 3264 St. John's Wort (Hypericum perforatum L.) Methanol Extract

Data provided by  National Institute of Standards and Technology

SRM 3264 St. John's Wort (Hypericum perforatum L.) Methanol Extract - This Standard Reference Material (SRM) is intended primarily for use in validating analytical methods for the determination of chlorogenic acid, flavonoids, naphthodianthrones, and toxic elements in methanol extracts of Hypericum perforatum L. and similar materials. This data is public in the Certificate of Analysis for this material.

Tags: Standard Reference materials,SRM,SRM 3264,St. John's wort,nutrition,dietary supplements,certified value,reference value,Food and Nutrition,

Modified: 2024-02-22

Views: 0

SRM 3281 Cranberry (Fruit)

Data provided by  National Institute of Standards and Technology

SRM 3281 Cranberry (Fruit) - This Standard Reference Material (SRM) is intended primarily for use in validating analytical methods for the determination of organic acids in the fruit of cranberries and similar matrices. This SRM can also be used for quality assurance when assigning values to in-house control materials. This data is public in the Certificate of Analysis for this material.

Tags: Standard Reference materials,SRM,SRM 3281,Cranberry,food,nutrition,dietary supplement,anthocyanin,certified value,reference value,Food and Nutrition,

Modified: 2024-02-22

Views: 0

SRM 3282 Low-Calorie Cranberry Juice Cocktail

Data provided by  National Institute of Standards and Technology

SRM 3282 Low-Calorie Cranberry Juice Cocktail. This Standard Reference Material (SRM) is intended primarily for use in validating analytical methods for the determination of organic acids and nutrient elements in cranberry juice cocktails and similar matrices. This SRM can also be used for quality assurance when assigning values to in-house control materials. A unit of SRM 3282 consists of five ampoules, each containing approximately 1.2 mL of material. This data is public in the Certificate of Analysis for this material.

Tags: Standard Reference materials,SRM,SRM 3282,cranberry juice,juice,food,nutrition,anthocyanin,certified value,reference value,Food and Nutrition,

Modified: 2024-02-22

Views: 0

SRM 3287 Blueberry (Fruit)

Data provided by  National Institute of Standards and Technology

SRM 3287 Blueberry (Fruit). This Standard Reference Material (SRM) is intended primarily for use in validating analytical methods for the determination of organic acids and nutrients in blueberries and similar materials. This SRM can also be used for quality assurance when assigning values to in-house control materials. A unit of SRM 3287 consists of five packets, each containing approximately 5 g of freeze-dried, powdered fruit. This data is public in the Certificate of Analysis for this material.

Tags: Standard Reference materials,SRM,SRM 3287,blueberry,food,nutrition,dietary supplement,anthocyanin,certified value,reference value,Food and Nutrition,

Modified: 2024-02-22

Views: 0

SRM 3532 Calcium-Containing Solid Oral Dosage Form

Data provided by  National Institute of Standards and Technology

SRM 3532 Calcium-Containing Solid Oral Dosage Form - This Standard Reference Material (SRM) is intended primarily for validation of methods for determining cholecalciferol (vitamin D3) and elements in a calcium dietary supplement and similar materials. This SRM can also be used for quality assurance when assigning values to in-house reference materials. A unit of SRM 3532 consists of five packets, each containing approximately 10 g of material. This data is public in the Certificate of Analysis for this material.

Tags: Standard Reference materials,SRM,SRM 3532,calcium supplement,food,nutrition,dietary supplements,certified value,reference value,Food and Nutrition,

Modified: 2024-02-22

Views: 0

SRM 1721 Southern Oceanic Air (Ambient Nominal Amount-of-Substance Fraction: Carbon Dioxide, Methane, Nitrous Oxide)

Data provided by  National Institute of Standards and Technology

Standard Reference Material-1721: Southern Oceanic Air. Ambient Nominal Amount of Substance Fraction for Carbon Dioxide, Methane & Nitrous Oxide. This Standard Reference Material (SRM) is a primary gas mixture for which the amount-of-substance fraction, expressed as concentration, may be related to secondary working standards. This SRM is intended for the calibration of instruments used for ambient carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) determinations and for other applications. This data is public in the Certificate of Analysis for this material.

Tags: SRM,Standard Reference Material,Southern Oceanic Air,carbon dioxide,methane,Nitrous Oxide,CO2,CH4,N2O,amount of substance,Energy,Environment and Climate,

Modified: 2024-02-22

Views: 0

Certified values of iodine in CRMs of food matrices in mg/kg units. The uncertainties are expanded uncertainties at approximately 95% confidence.

Data provided by  National Institute of Standards and Technology

A comparison of the expanded uncertainty for certified values of iodine in food matrix CRMs. The CRMS were found by searching The European Virtual Institute for Speciation Analysis (EVISA) database using the terms "Iodine" and "Certified" in the Material category. The uncertainties are expanded uncertainties at approximately 95% confidence.

Tags: food,nutrition,dietary supplements,Standard Reference materials,reference materials,SRM,RM,Food and Nutrition,

Modified: 2024-02-22

Views: 0

DFT Benchmarking

Data provided by  National Institute of Standards and Technology

All the data in this project are generated running Density Functional (DFT) simulation either on NIST computer clusters of through our collaborators at University of Florida. The final data consist in relaxed atomic structures and corresponding energetic, mechanical, electronic and phonon properties. The metadata consist in the initial and relaxed structures, the description of the code, of the k points and of all the parameters used in running the simulations (energy or real space cutoff, type of minimization, occupation, etc.).

Tags: Density functional theory,DFT,Uncertainty,UQ,exchange-correlation comparison,k points,energy precision,Energy,elastic constants,energy gap,bulk modulus,

Modified: 2024-02-22

Views: 0