Analysis of corrections to the eikonal approximation

Various corrections to the eikonal approximations are studied for two- and three-body nuclear collisions with the goal to extend the range of validity of this approximation to beam energies of 10 MeV/nucleon. Wallace's correction does not improve much the elastic-scattering cross sections obtained at the usual eikonal approximation. On the contrary, a semiclassical approximation that substitutes the impact parameter by a complex distance of closest approach computed with the projectile-target optical potential efficiently corrects the eikonal approximation. This opens the possibility to analyze data measured down to 10 MeV/nucleon within eikonal-like reaction models.Comment: 10 pages, 8 figure

westerlies_past1000_supplementary – Supplemental material for Variation of the summer Asian westerly jet over the last millennium based on the PMIP3 simulations

Supplemental material, westerlies_past1000_supplementary for Variation of the summer Asian westerly jet over the last millennium based on the PMIP3 simulations by Nanxuan Jiang, Qing Yan and Huijun Wang in The Holocene</p

Novel Self-Adaptive Shale Gas Production Proxy Model and Its Practical Application

Recently, production optimization has gained increasing interest in the petroleum industry. The most computationally intensive and critical part of the production optimization process is the evaluation of the production function performed by the numerical reservoir simulator. Employing proxy models as a substitute for the reservoir simulator is proposed for alleviating this high computational cost. In this study, a new approach to construct adaptive proxy models for production optimization problems is proposed. An adaptive difference evolution algorithm (SaDE) optimized least-squares support vector machine (LSSVM) is used as an approximation function, while training is performed using a self-adaptive response surface experimental design (SaRSE). SaDE selects the optimal hyperparameters of LSSVM during the training process to improve the prediction accuracy of the proxy model. Cross-validation methods are used in the recursive training and network evaluation phases. The developed method is used to optimize the production of block gas reservoir models. Computational results confirm that the developed adaptive proxy model outperforms traditional regression methods. It is further verified that when the experimental data are updated, the alternative model still has high prediction accuracy when performing the objective function evaluation. The results show that the proposed proxy modeling approach enhances the entire optimization process by providing a fast approximation of the actual reservoir simulation model with better accuracy

Supplementary document for Controlling ultrafast laser writing in silica glass by pulse temporal contrast - 6944638.pdf

Supplemental documen

Additional file 1 of Novel PAK3 gene missense variant associated with two Chinese siblings with intellectual disability: a case report

Additional file 1 Table S1. Stability results of PAK3 and variant, produced by Molecular Operating Environment (MOE). Table S2. The summary of variants consistent with the inheritance model other than the PAK3 gene in this family from the trio-WES data

DataSheet1_Weather Extremes Led to Large Variability in O3 Pollution and Associated Premature Deaths in East of China.docx

As global warming intensifies, hot extremes and heavy precipitation frequently happen in East of China. Meanwhile, severe surface ozone (O3) pollution resulting from the interactions of anthropogenic emissions and meteorological conditions also occur more frequently. In this study, we quantified the impact of weather extremes on ground-level O3 concentration during the summers of 2015–2021 and associated premature deaths in East of China. The O3 pollution influenced by hot extremes [maximum 8-h average O3 concentration (MDA8 O3) = 152.7 μg m−3] was 64.2% more severe than that associated with heavy rain (MDA8 O3 = 93 μg m−3) on the daily time scale. The compound hot and dry air extremes had a larger impact, and the associated MDA8 O3 could be up to 165.5 μg m−3. Thus, weather extremes could drastically perturb the O3 level in the air to exhibit large variability. Based on GEOS-Chem simulations with fixed anthropogenic emissions, forcing of weather extremes could successfully reproduce the large daily variability of O3 concentration because the weather extremes significantly influenced the physicochemical processes in the atmosphere. Furthermore, hot extremes magnified the single-day O3-related premature death to 153% of that under other-condition events, while heavy rain events decreased it to 70% in East of China. The findings of the present study have the potential to promote daily to weekly O3 forecasts and further improve our comprehensive understanding of the health effects of weather extremes and air pollution.</p

Five-year cumulative incidence and 95% CI of hypertension in Chinese adults (new cases per 100 persons at risk) by levels of (A) BMI, (B) WC, (C) WHR, (D) WSR in 2006.

<p>* Different from women, <i>P</i> < 0.05 chi-square test; <i>P</i>-trend < 0.001 for all.</p

Additional file 1: Figure S1. of Trends in domain-specific physical activity and sedentary behaviors among Chinese school children, 2004–2011

a-d. Adjusted means for physical activity (MET-hours/week) in 2011 among Chinese school children by residence, gender, and age group, China Health and Nutrition Survey (CHNS)a. a Means are adjusted for income tertile, maternal education, and child age. (DOCX 752 kb

Prospective Study of Optimal Obesity Index Cut-Off Values for Predicting Incidence of Hypertension in 18–65-Year-Old Chinese Adults

<p>The manuscript entitled "Prospective Study of Optimal Obesity Index Cut-Off Values for Predicting Incidence of Hypertension in 18–65-Year-Old Chinese Adults" was accepted by journal "PLoS ONE", with a doi of "10.1371/journal.pone.0148140". The file "k2" was the primary dataset of the manuscript.</p

Controlling ultrafast laser writing in silica glass by pulse temporal contrast

Control of laser writing in transparent dielectrics using temporal contrast of light pulses is demonstrated. Anisotropic nanopores in silica glass are produced by high-contrast of 10^7 femtosecond Yb: KGW laser pulses rather than low-contrast of 10^3 Yb fiber laser pulses. Low-contrast pulses are useful for creating lamellar birefringent structures, possibly driven by quadrupole nonlinear current. The difference originates in the fiber laser storing third of its energy in a post-pulse of 200 ps duration. The absorption of this low-intensity fraction of the pulse by laser-induced transient defects with relatively long lifetime and low excitation energy, such as self-trapped holes, drastically changes the kinetics of energy deposition and type of material modification