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THE SOLAR CONSTANT

Frank W. Very
1901 Monthly Weather Review  
The alti- tude of the peak of Mount Whitney (4,460 meters) is some- what less than that of Mount Blanc (4,810 meters), and Lone Pine Camp (1,184 meters) is a little higher than Chamonix (1,040 meters);  ...  No improvement is affected by this method, which gives alto- gether too little absorption in the ultra-violet, yet there can be no doubt that these valuable measures are capable of yielding improved results  ... 
doi:10.1175/1520-0493(1901)29[357:tsc]2.0.co;2 fatcat:66gndxgs6zaqpgm7e5qg3vgsci

Reaction Constants forLi7(p,n)Be7

Richard Taschek, Arthur Hemmendinger
1948 Physical Review  
If this accuracy can be slighly improved, this would provide a straightforward method of measuring the total flux of neutrons from the source during such an exposure.  ...  Jes PHYSICAL REVIEW VOLUME 74, NUMBER 4 AUGUST 15, 1948 Reaction Constants for Li’(p,n)Be’ RICHARD TASCHEK AND ARTHUR HEMMENDINGER Los Alamos Scientific Laboratory, Los Alamos, New Mexico (Received May  ... 
doi:10.1103/physrev.74.373 fatcat:7mkktjweljbofiacsxhit7h2le

Varying Constants, Gravitation and Cosmology

Jean-Philippe Uzan
2011 Living Reviews in Relativity  
We then review the main experimental and observational constraints that have been obtained from atomic clocks, the Oklo phenomenon, Solar system observations, meteorites dating, quasar absorption spectra  ...  We thus detail the relations between the constants, the tests of the local position invariance and of the universality of free fall.  ...  can improve the reconstruction of the equation Living Reviews in Relativity http://www.livingreviews.org/lrr-2011-2 state of the dark energy [20, 162, 389, 404] .  ... 
doi:10.12942/lrr-2011-2 pmid:28179829 pmcid:PMC5256069 fatcat:vk76vahkpngurogwlnc5amlfke

Search for Varying Constants of Nature from Astronomical Observation of Molecules

Wim Ubachs
2017 Space Science Reviews  
The status of searches for possible variation in the constants of nature from astronomical observation of molecules is reviewed, focusing on the dimensionless constant representing the proton-electron  ...  Existing bottlenecks and prospects for future improvement with novel instrumentation are discussed.  ...  Acknowledgements The author acknowledges financial support from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (Grant Agreement No. 670168  ... 
doi:10.1007/s11214-017-0432-y fatcat:3qegv3du3fc2za65ulnddh7fna

Food in synchrony with melatonin and corticosterone relieves constant light disturbed metabolism

Adrián Báez-Ruiz, Natalí N Guerrero-Vargas, Fernando Cázarez-Márquez, Elizabeth Sabath, María del Carmen Basualdo, Roberto Salgado-Delgado, Carolina Escobar, Ruud M Buijs
2017 Journal of Endocrinology  
We hypothesized that HS, resulting from constant light (LL) exposure is due to an inconsistency between signals related to food intake and endocrine-driven suprachiasmatic nucleus (SCN) outputs.  ...  Discrete metabolic improvements under these separate treatments stimulated us to investigate whether the combination of hormone treatment together with mealtime restriction (12-h food during four weeks  ...  Mara Guzmán (Faculty of Medicine, UNAM) for her assistance in the GTT assay.  ... 
doi:10.1530/joe-17-0370 pmid:28851750 fatcat:nturypsfzjaxthgewzp6tag2fu

SWINE RESPONSES TO CONSTANT AND MoDiFffiD DIURNAL CYCLIC TEMPERATURES

H. Xin, J. A. DeShazer
1991 Transactions of the ASAE  
Ad libitum fed and individually penned crossbred gilts (39 ± 2 kg) were exposed to a constant air temperature of 30.8*" C (CON) and equal-mean diurnal cyclic temperatures cycling from 26° to 33*^ C (RPK  ...  Hourly feed intakes of the pigs were unevenly distributed throughout the 24-h period.  ...  The relative humidity was allowed to vary as a function of air VOL, 34(6): NOVEMBER-DECEMBER 1991 = feed conversion Exposure Duration = duration of the treatment exposure from which the measures were obtained  ... 
doi:10.13031/2013.31903 fatcat:igxwdzfjh5bvxidf5hmnzliu5m

A comparative study of two methods for attaining constant alcohol levels

R.W.M. Zoethout, J.M.A. van Gerven, G.J.H. Dumont, S. Paltansing, N.D. van Burgel, M. van der Linden, A. Dahan, A.F. Cohen, R.C. Schoemaker
2008 British Journal of Clinical Pharmacology  
The novel alcohol clamping paradigm can be of value in future studies of alcohol interactions or the pharmacodynamics of acute alcohol administration.  ...  WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT CONCLUSIONS Although the two methods differ considerably in their approach, clamping of BrAC resulted in more accurate alcohol levels than infusion based on PK  ...  Again, the hand-held Alco-Sensor IV meter was used for BrAC sampling.  ... 
doi:10.1111/j.1365-2125.2008.03268.x pmid:19032175 pmcid:PMC2661983 fatcat:d67xcwqx6rfmzn3bm4pe6sgvgi

Probing Variations In The Fundamental Constants With Quasar Absorption Lines

Michael T. Murphy, John K. Webb, Victor V. Flambaum
2003 Zenodo  
The data marginally prefer constant \(d\alpha/dt\) rather than constant \(\Delta\alpha/\alpha\).  ...  Until recently, the most reliable technique was the alkali doublet (AD) method where the measured doublet separation probes variations in the fine-structure constant, \(\alpha \equiv e^2/\hbar c\).  ...  However, varying meter rules and/or varying clocks are equally valid conclusions.  ... 
doi:10.5281/zenodo.57184 fatcat:kbk4nacsdbapje74odbtptrp6a

H_0: The Incredible Shrinking Constant, 1925-1975

Virginia Trimble
1996 Publications of the Astronomical Society of the Pacific  
The story of the Hubble constant logically begins just where the Curtis-Shapley debate on the distance scale of the universe ended, with Hubble's discovery of Cepheid variables in several nebulae that  ...  we now recognized as galaxies within the Local Group, which settled the issue of the existence of external galaxies.  ...  Willem de Sitter (1872 , motivated perhaps by Machian considerations of the nature of inertia, identified another solution of the Einstein equations that is also static, contains a cosmological constant  ... 
doi:10.1086/133837 fatcat:gucbi6vlfrdpxdawckliudrnwa

Per-Pixel Time Constant Measurement of Bolometer Cameras

Dennis L. Waldron, Dieter J. Lohrmann
2020 IEEE Transactions on Instrumentation and Measurement  
A novel system to measure the time constant of microbolometer cameras per-pixel to create a 2-D time constant map is presented.  ...  Detailed simulations are run for a broad range of variables and values to demonstrate the usefulness of the system in extracting even extremely fast time constants with high accuracy and repeatability.  ...  Our system, which is laid out fully in Section II-B, improves upon existing reported systems in key ways, enabling perpixel results to be calculated for nearly arbitrarily fast time constants.  ... 
doi:10.1109/tim.2020.2985138 fatcat:pgq4pb2f2vezxgze7tesh4vhti

Search for Varying Constants of Nature from Astronomical Observation of Molecules [chapter]

Wim Ubachs
2017 Space Sciences Series of ISSI  
The status of searches for possible variation in the constants of nature from astronomical observation of molecules is reviewed, focusing on the dimensionless constant representing the proton-electron  ...  Existing bottlenecks and prospects for future improvement with novel instrumentation are discussed.  ...  Acknowledgements The author acknowledges financial support from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (Grant Agreement No. 670168  ... 
doi:10.1007/978-94-024-1566-7_3 fatcat:s2amb75jpve5levmncstps2en4

ON THE QUESTION OF DAY-TO-DAY FLUCTUATIONS IN THE DERIVED VALUES OF THE SOLAR CONSTANT

C. F. MARWIN
1925 Monthly Weather Review  
began observations under improved atmospheric conditions.  ...  MONTHLY WEATHER REVIEW, March 1925, 53: 107. ‘ MONTHLY WEATHER REVIEW JULY, 1995 This equation is easily derived from any of the observa. tional uations in (8) by forming the variate difference Vand A/  ... 
doi:10.1175/1520-0493(1925)53<285:otqodf>2.0.co;2 fatcat:pyo6w2oyevdfborx6kho6zgndq

Modeling Dielectric-Constant Values of Geologic Materials

Alex Martinez, Alan P. Byrnes
2001 Current research in earth sciences  
Additional models were constructed to investigate the role of lithology and fluid saturation on dielectric constant and GPR response.  ...  Three modeled rock examples of variable mineralogy, porosity, and saturation illustrate that bulk dielectric constant, which generally ranges from 2 to 38 in the materials modeled, is primarily controlled  ...  A review of the equations governing GPR response illustrates the role of dielectric constant.  ... 
doi:10.17161/cres.v0i247.11831 fatcat:wqlla2wgbrgozotcljxuzzfh3y

Determination of the Dissociation Constants of 16 Active Ingredients in Medicinal Herbs Using a Liquid–Liquid Equilibrium Method

Wanying Wang, Baixiu Zheng, Jiahao Wu, Weisong Lv, Peiying Lin, Xingchu Gong
2021 Separations  
The dissociation constants obtained were close to those reported in other studies, which means that the results of this work are reliable.  ...  The dissociation constant is an important physicochemical property of drug molecules that affects the pharmacokinetic and pharmacodynamic properties of drugs.  ...  The reaction equation is shown in Scheme 2. With further exposure to an alkali, the phenolic hydroxyl group on the sinomenine molecule ionizes to form a salt.  ... 
doi:10.3390/separations8040049 doaj:24223a0995bd4dd385ce954a6f729c6a fatcat:xn4ggyiltnfcdh6mrfhnkoa6au

Dew-point Hygrometer with Constant Resistance Humidity Transducer

Curtis B. Campbell, Ben L. Grover, Melvin D. Campbell
1971 Journal of Applied Meteorology  
LITERATURE REVIEW Historical note The hair hygrom e t e r is th e first recorded instrum e nt for measu ring the amount of moisture in the air.  ...  The inc r ease i n size i s caused by the moisture absorbed from the air . Coloring was added to the saturated solution to improve visibility.  ...  The id e ntification h e used is retained for reference purposes. OUTPUT  ... 
doi:10.1175/1520-0450(1971)010<0146:dphwcr>2.0.co;2 fatcat:2koqu5tzy5delhhsi7uemz2utq
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