Two-Dimensional Ion-Imprinted Silica for Selective Uranium Extraction from Low-Level Radioactive Effluents

2021 ◽  
Author(s):  
Quan Gan ◽  
Meiyun Xu ◽  
Qian Li ◽  
Sen Yang ◽  
Jia Yin ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Uranium Extraction ◽  
Low Level ◽  
Ion Imprinted

Urban network of China from the perspective of population mobility: Three-dimensional co-occurrence of nodes and links

2021 ◽  
pp. 0308518X2199781
Author(s):  
Xinyue Luo ◽  
Mingxing Chen
Keyword(s):  
Three Dimensional ◽  
Geographical Distance ◽  
Two Dimensional ◽  
Population Mobility ◽  
Urban Network ◽  
Urban Networks ◽  
Low Level ◽  
Medium Level ◽  
High Level ◽  
External Connections

The nodes and links in urban networks are usually presented in a two-dimensional(2D) view. The co-occurrence of nodes and links can also be realized from a three-dimensional(3D) perspective to make the characteristics of urban network more intuitively revealed. Our result shows that the external connections of high-level cities are mainly affected by the level of cities(nodes) and less affected by geographical distance, while medium-level cities are affected by the interaction of the level of cities(nodes) and geographical distance. The external connections of low-level cities are greatly restricted by geographical distance.

scholarly journals A Numerical Study on the Diurnal Variation of Low-Level Wind in the Lee of a Two-Dimensional Mountain

1999 ◽  
Vol 77 (4) ◽  
pp. 827-843 ◽  
Author(s):  
Fumiaki Fujibe ◽  
Kazuo Saito ◽  
David S. Wratt ◽  
Stuart G. Bradley
Keyword(s):  
Diurnal Variation ◽  
Numerical Study ◽  
Two Dimensional ◽  
Low Level

A comparison of the synthesis of DNA, RNA and proteins in the embryos of after-ripened and thermo- or FR-dormant Agrostemma githago L. seeds

1995 ◽  
Vol 5 (2) ◽  
pp. 87-97 ◽  
Author(s):  
U. Gerth ◽  
D. Bernhardt
Keyword(s):  
Protein Synthesis ◽  
Dna Synthesis ◽  
Rna Synthesis ◽  
Gradual Decrease ◽  
Two Dimensional ◽  
Dark Incubation ◽  
Low Level ◽  
Developmental Arrest ◽  
Stimulation Of

AbstractImbibed embryos of after-ripened and secondarily thermo- and FR-dormant Agrostemma githago seeds were investigated as to their ability to synthesize DNA, RNA and proteins with the aim of finding characteristic differences connected with the induction and maintenance of developmental arrest. A gradual decrease in DNA synthesis was observed during the induction of thermodormancy. However, DNA synthesis was stimulated up to that of embryos of 30–h-imbibed after-ripened seeds within 24 h approximately after transferring the thermodormant seeds into temperatures which normally allow germination. DNA synthesis of embryos of FR-dormant seeds remained constant at a relatively low level during 7 d FR and another 7 d dark incubation. RNA synthesis decreased to different extents during induction of thermo- and FR-dormancy when it was arrested at a relatively low level in seeds transferred to temperatures which normally allow germination. Processes leading to an increase in RNA synthesis such as in embryos of after-ripened seeds appeared to be quantitatively and/or qualitatively repressed. Interestingly, protein synthesis was extremely depressed during induction of thermodormancy whereas it was slightly stimulated during induction of FR-dormancy. Nevertheless two-dimensional protein PAGE revealed several polypeptides which were new, increased, decreased or not synthesized predominantly in axes of thermo- and FR-dormant seeds in comparison to germinating after-ripened seeds. It is suggested that a connection exists between these polypeptides and the repression of germination. After transferring seconarily dormant seeds to temperatures which normally allow germination, a temporary stimulation of protein synthesis could be observed in both cases.

Two-dimensional sensor array for low-level light detection

2004 ◽  
Author(s):  
Jeff Hsin Chang ◽  
Yuri Vygranenko ◽  
Arokia Nathan
Keyword(s):  
Sensor Array ◽  
Two Dimensional ◽  
Light Detection ◽  
Low Level

THE APPLICATION OF TWO-DIMENSIONAL PAPER CHROMATOGRAPHY AND LOW-LEVEL COUNTING TO THE STUDY OF TRIIODOTHYRONINE IN PLASMA

1965 ◽  
Vol 32 (1) ◽  
pp. 59-NP ◽  
Author(s):  
K. SHIMAOKA ◽  
B. M. JASANI
Keyword(s):  
Thyroid Cancer ◽  
Thyroid Hormones ◽  
Cancer Patients ◽  
Paper Chromatography ◽  
Radioactive Iodine ◽  
Metabolic Effect ◽  
Two Dimensional ◽  
Binding Properties ◽  
Low Level ◽  
Significant Difference

SUMMARY The triiodothyronine (T3):thyroxine (T4) radioactive iodine ratio in the blood of six thyrotoxic and twelve thyroid cancer patients was measured radiochemically by means of two-dimensional paper chromatography and a low-level counter. The ratio was found to be 0·046 (with a standard error of 0·004). No significant difference was found between the two groups of patients. When the binding properties of these thyroid hormones to the serum protein are considered, the contribution of T3 to the metabolic effect is estimated to be one half of that of T4 in the patients studied.

scholarly journals The Circulation Response of a Two-Dimensional Frontogenetic Model to Optimized Moisture Perturbations

2020 ◽  
Author(s):  
Reuben Demirdjian ◽  
Richard Rotunno ◽  
Bruce Cornuelle ◽  
Carolyn A. Reynolds ◽  
James D. Doyle
Keyword(s):  
Three Dimensional ◽  
Static Stability ◽  
Two Dimensional ◽  
Mixing Ratio ◽  
Physical Processes ◽  
Low Level ◽  
Nonlinear Growth ◽  
Idealized Model ◽  
The Impact ◽  
Transverse Circulation

AbstractAn analysis of the influence and sensitivity of moisture in an idealized two-dimensional moist semigeostrophic frontogenesis model is presented. A comparison between a dry (relative humidity, RH=0%) and moist (RH=80%) version of the model demonstrates that the impact of moisture is to increase frontogenesis, strengthen the transverse circulation (??????,??), generate a low-level potential-vorticity anomaly and develop a low-level jet. The idealized model is compared to a real case simulated with the full-physics three-dimensional Coupled Ocean-Atmospheric Mesoscale Prediction System (COAMPS) model establishing good agreement and thereby confirming that the idealized model retains the essential physical processes relevant for improving understanding of midlatitude frontogenesis. Optimal perturbations of mixing ratio are calculated to quantify the circulation response of the model through the computation of singular vectors, which determines the fastest-growing modes of a linearized version of the idealized model. The vertical velocity is found to respond strongly to initial-condition mixing-ratio perturbations such that small changes in moisture lead to large changes in the ascent. The progression of physical processes responsible for this nonlinear growth is (in order): jet/front transverse circulation → moisture convergence ahead of the front → latent heating at mid-to-low elevations → reduction in static stability ahead of the front → strengthening of the transverse circulation, and the feedback cycle repeats. Together, these physical processes represent a pathway by which small perturbations of moisture can strongly impact a forecast involving midlatitude frontogenesis.

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