Measurement Of Total Absorption Area Of Electronic Subassemblies

1992 ◽  
Author(s):  
J.P. Quine ◽  
K.E. Larsen ◽  
G. Wellenc ◽  
W. Quinn ◽  
J.P. Streeter ◽  
...  
Keyword(s):  
Total Absorption ◽  
Absorption Area

Relationship between biomarkers and iron speciation and their environmental significance in plateau subsidence lacus: an example of Luguhu Lake, southeastern Tibetan Plateau

2020 ◽  
Vol 111 (4) ◽  
pp. 259-266
Author(s):  
Zixiang WANG ◽  
Lina SUN
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Tibetan Plateau ◽  
Gas Chromatography Mass Spectrometry ◽  
Total Absorption ◽  
Environmental Significance ◽  
Strong Negative Correlation ◽  
Sediment Samples ◽  
Absorption Area ◽  
Fe Speciation

ABSTRACTHerein, we present a synthetic study combining iron (Fe) speciation and biomarkers in sediment samples from Luguhu Lake to investigate their relationship and the environmental significance thereof. Mössbauer spectroscopy and gas chromatography–mass spectrometry were used for these measurements. The results suggest that (a) there is a strong negative correlation between Fe2+/Fe3+ and the ratio of pristane to phytane (Pr/Ph), indicating that both Fe2+/Fe3+ and Pr/Ph effectively present the inorganic and organic aspects, respectively, of the oxidation–deoxidation environment in Luguhu Lake; (b) palaeotemperature may be a factor, in addition to the redox conditions, that affects the Fe2+/Fe3+ ratio, and it might play a favourable role in studies of palaeotemperature; and (c) the relative abundance of Fe in Luguhu Lake is affected by the palaeoclimate and the environment in which the palaeosediment was deposited. The mechanism of change in the total area (the total absorption area of Mössbauer spectrum) with the palaeoenvironment seems to be explained by the loss of Fe, which occurs as the water drains out of the lake, and the increase in Fe loss from the sediment as rainfall levels increase.

scholarly journals Total absorption γ -ray spectroscopy of niobium isomers

2019 ◽  
Vol 100 (2) ◽  
Author(s):  
V. Guadilla ◽  
A. Algora ◽  
J. L. Tain ◽  
J. Agramunt ◽  
J. Äystö ◽  
...  
Keyword(s):  
Total Absorption ◽  
Γ Ray

Ionization yields, total absorption, and dissociative photoionization cross sections of CH4 from 110 to 950 Å

1989 ◽  
Vol 90 (12) ◽  
pp. 6925-6932 ◽  
Author(s):  
James A. R. Samson ◽  
G. N. Haddad ◽  
T. Masuoka ◽  
P. N. Pareek ◽  
D. A. L. Kilcoyne
Keyword(s):  
Cross Sections ◽  
Total Absorption ◽  
Dissociative Photoionization

scholarly journals Total absorption spectroscopy of the β decay of Zr101,102 and Tc109

2021 ◽  
Vol 103 (2) ◽  
Author(s):  
A. C. Dombos ◽  
A. Spyrou ◽  
F. Naqvi ◽  
S. J. Quinn ◽  
S. N. Liddick ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Total Absorption ◽  
Β Decay

scholarly journals Total absorption gamma-ray spectroscopy study of the β-decay of 186Hg

2021 ◽  
pp. 136438
Author(s):  
A. Algora ◽  
E. Ganioğlu ◽  
P. Sarriguren ◽  
V. Guadilla ◽  
L.M. Fraile ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Total Absorption ◽  
Spectroscopy Study ◽  
Β Decay ◽  
Gamma Ray Spectroscopy

Trends in Trabecular and Cortical Bone in the Radius Compared with Whole Body Calcium Balance in Osteoporosis

1984 ◽  
Vol 66 (1) ◽  
pp. 109-112 ◽  
Author(s):  
R. Hesp ◽  
A. C. Deacon ◽  
Patricia Hulme ◽  
J. Reeve
Keyword(s):  
Trabecular Bone ◽  
Cortical Bone ◽  
Distal Radius ◽  
Rate Of Change ◽  
Whole Body ◽  
Calcium Balance ◽  
Total Absorption ◽  
Balance Study ◽  
Attenuation Coefficients ◽  
Change Trend

1. Mean linear attenuation coefficients for trabecular bone (T) in the distal radius and total absorption coefficients (TA) in the radial mid-shafts of 22 patients with crush fracture osteoporosis were measured serially for a year by using computed tomography. After approximately 6 months, each patient was admitted to a metabolic ward for an 18-day calcium balance study. 2. The rate of change (trend) in trabecular bone (T) in the distal radius was a better predictor of calcium balance than the trend in mid-shaft cortical bone (TA). 3. The scatter in the regressions of the trends of T and TA on calcium balance could be accounted for by known methodological uncertainties.

Effects of aflatoxin B1 and monensin interaction on liver and intestine of poultry – influence of a biological additive (Pichia kudriavzevii RC001)

2021 ◽  
pp. 1-12
Author(s):  
A.P. Magnoli ◽  
V. Poloni ◽  
L.A. Cristofolini ◽  
C.I. Merkis ◽  
F.M. Escobar ◽  
...  
Keyword(s):  
Basal Diet ◽  
Vero Cells ◽  
Toxic Effects ◽  
Feed Additive ◽  
Poultry Production ◽  
Pichia Kudriavzevii ◽  
Absorption Area ◽  
Group 5 ◽  
Group 2 ◽  
Aflatoxin B

The aim of this study was to evaluate the effects of aflatoxin B1 (AFB1) and monensin (MONS) interaction on the liver and intestinal histological changes in poultry, and the influence of Pichia kudriavzevii RC001. One-day-old commercial line (Ross 308) broilers (n=120) were individually weighed and randomly assigned to 8 treatments (15 broilers/treatment, 5 broilers per cage and 3 replicates/treatment). The experimental diets were: Group 1: basal diet (BD); Group 2: BD + MONS (50 mg/kg); Group 3: BD + P. kudriavzevii RC001 (1 g/kg); Group 4: BD + AFB1 (100 μg/kg); Group 5: BD + MONS + P. kudriavzevii RC001; Group 6: BD + AFB1 + P. kudriavzevii RC001; Group 7: BD + AFB1 + MONS + P. kudriavzevii RC001; Group 8: BD + AFB1 + MONS. When MONS was added, the typical AFB1 macroscopic and microscopic alterations were intensified. The P. kudriavzevii RC001 cytotoxicity and genotoxicity assays with Vero cells and with broiler chicken’s erythrocytes, demonstrated that P. kudriavzevii RC001 neither were non-cytotoxic nor genotoxic. When MONS was added in the presence of P. kudriavzevii RC001, the toxic effect of AFB1 on liver was not prevented. When P. kudriavzevii was present alone, the same prevention of the pathological damage was observed in the intestine of poultry fed with AFB1. The smallest apparent absorption area was obtained when AFB1 and MONS were added in the feed (P<0.05). AFB1 and MONS interaction demonstrated important toxic effects. Although P. kudriavzevii was effective in ameliorating the adverse effects of AFB1 alone on liver pathology and gut morphology, it was not able to diminish the toxic effects of AFB1 in presence of MONS. It suggests that P. kudriavzevii could be used as feed additive or counteracting the toxic effects of AFB1 in poultry production in the absence of MONS.

Sign in / Sign up

Export Citation Format

Share Document