DataSheet1_Flour derived porous carbon as anode for highly robust potassium-ion batteries.doc

Potassium-ion batteries (PIBs) have attracted increasing research interest because of the natural abundance and low cost of potassium. Nevertheless, lacking of suitable anode materials that can deliver high reversible capacity and long cycle life highly hinder the further development of PIBs. Here, we report a flour chemistry strategy to establish a porous phosphorus-doped carbon (PPDC) as anode for high-performance PIBs. The as-prepared PPDC with high hierarchically porous structure and rich P-doping not only offers fast transport of K+ and electrons during continuous cycling, but also affords sufficient inner space to relieve volume expansion of active electrode. Therefore, the PPDC displayed high reversible capacity, excellent cyclic stability, outstanding rate performance. These results imply a great potential for applications in the field of high-energy storage devices.</p

A MIL-101 Composite Doped with Porous Carbon from Tobacco Stem for Enhanced Acetone Uptake at Normal Temperature

A high-efficiency adsorbent for acetone under normal temperature was prepared with metal–organic framework MIL-101 doped with porous carbon from tobacco stem (MIL-101/TC) by a solvothermal synthesis method. These synthesized composites were characterized and then investigated for acetone adsorption at 288 and 298 K up to 20 kPa. The isosteric heat of adsorption was estimated from adsorption isotherms of acetone vapor. Temperature programmed desorption (TPD) was employed to calculate the activation energies of acetone desorption on MIL-101/TC and MIL-101. Results of characterization showed that MIL-101/TC possessed crystal structure and morphology similar to those of MIL-101. Despite the smaller BET surface area, MIL-101/TC-40 and MIL-101/TC-30 composites had much higher acetone uptakes of 1137 and 1123 mg/g at 18.9 and 18.1 kPa in 288 K, respectively, which increased by 19.8% and 18.3% compared with those of MIL-101 composites. The increase in acetone uptakes was attributed to the associative effect of the enhancement of the surface dispersive forces and the activation of the unsaturated metal sites by TC loading. The isosteric heat of acetone adsorption on MIL-101/TC was much higher than that on MIL-101, and the maximum isosteric adsorption heat on MIL-101/TC-40 was 52 kJ/mol. The activation energy of desorption obtained through TPD ranged from 24.5 to 48.5 kJ/mol. The acetone adsorption isotherms of the composites could be fitted favorably by the L-F and DSLF equations

Empirical analysis of pig welfare levels and their impact on pig breeding efficiency—Based on 773 pig farmers’ survey data

<div><p>Few studies of the pig production efficiency are from the perspective of animal welfare. Therefore, this study conducted a comprehensive evaluation of pig welfare levels based on survey data from 773 pig farmers from 23 counties in the Chinese provinces of Hunan, Zhejiang, Guangdong, Guizhou, and Shanxi. This study used the Delphi method, Analytic Hierarchy Process (AHP), and Data Envelopment Analysis (DEA)-Tobit regression model to analyze farmers’ pig production efficiency and its influencing factors. This paper found that most farmers’ pig production efficiency is low, and the DEA is invalid. Only 2.9% of pig farmers’ who breed pigs are at the optimal level in terms of welfare, and their production efficiency is relatively high. In contrast, 49.34% of the farmers are at the medium welfare level, and compared with the farmers at the optimal welfare level, these farmers’ pig production efficiency is low. Additionally, the farmers’ age, gender, and number of years of experience with pig breeding have a significant effect. Furthermore, the scale of pig breeding and feeding type, the agriculture facilities for the central treatment of waste in local areas, and the availability of local agricultural science and technology personnel have a considerable influence on pig production efficiency.</p></div

Pig welfare evaluation index system framework.

<p>Pig welfare evaluation index system framework.</p

Weight analysis results.

<p>Weight analysis results.</p

Average input and output of the 773 pig farmers every year for each pig.

<p>Average input and output of the 773 pig farmers every year for each pig.</p

Statistical analysis.

<p>Statistical analysis.</p

Survey results regarding 773 farmers’ pig welfare levels.

<p>Survey results regarding 773 farmers’ pig welfare levels.</p

Explained variables and statistical description.

<p>Explained variables and statistical description.</p

NOX4 knockout inhibits cell migration and invasion.

<p>(<b>A, B</b>) NOX4 knockout inhibits the cell migration of HeLa cells. Equal numbers of cells were plated onto a 6 well plate, and cells were scraped. After 24 h and 48 h, the wound gaps were photographed using an inverted microscope and quantified using imageJ software. Bars: 100 μm. The graph shows the mean and the standard deviation (SD). Control vs NOX4 knockout cells. *: P <0.0001, **: P <0.00001, n = 6. (<b>C, D</b>) NOX4 knockout inhibits the cell invasion. Invasion of control and NOX4 knockout cells through matrigel in response to EGF (20 ng/ml for 24 h) was assessed by the invasion assay. Bars: 100 μm. The graph shows the average and the standard deviation (SD). Control vs NOX4 knockout cells. ***: P <0.005, ****: P <0.0005, n = 20. Experiments were repeated three times with similar observations, and representative images of the invasive cells are shown.</p