Publications

A Research on Chemistry Teaching and Cultivation of Students' Scientific Accomplishment

Of all sciences, chemistry is a branch that emphasizes practice. On the basis of fully realizing its characteristics, multi channel cultivation of students' scientific learning, methodology and creation will set a role model for quality oriented chemistry education in teachers school.

Pt loading onto CeO2 and Cu-doped CeO2 catalysts for improving hydrogen production by solar photo-thermochemical water splitting

Emissions of PM10 from the co-combustion of high-Ca pyrolyzed biochar and high-Si coal under air and oxyfuel atmosphere

Two-step annealing synthesis of MOF-derived Cr-Co-Ru metallic oxides for improving the oxygen evolution reaction in acidic water splitting

Effects of torrefaction and water-washing on the mineral transformation behavior during co-combustion of straw and coal: A CCSEM analysis

Experimental investigation of mechanical response and steel strain distribution of uncorroded and corroded R/ECC ties under tension with distributed optical fiber sensors

Palladium-catalyzed cross-coupling reaction of alkenyl aluminums with 2-bromobenzo[<i>b</i>]furans

Highly efficient and simple cross-coupling reactions of 2-bromobenzo[b]furans with alkenylaluminum reagents for the synthesis of 2-alkenylbenzo[b]furan derivatives using PdCl2 (3 mol%)/XantPhos (6 mol%) as catalyst are reported. Excellent yields (up to 97%) were obtained for a wide range of substrates at 80 °C for 4 h in DCE.

Formation and Control of Fine Potassium-Enriched Particulates during Coal Combustion

Fine potassium-enriched particulates generated from coal combustion are harmful to the environment and human health. To study the formation and control mechanisms of fine potassium-enriched particulates during coal combustion, raw lignite, potassium-rich coal obtained from raw lignite, and potassium-rich coal mixed with kaolin were combusted in an electrically heated drop-tube furnace. The effects of the combustion temperature and atmosphere were considered. The particulate matter generated is subject to size distribution, concentration, elemental composition and morphology analysis. Thermodynamic calculations were also performed to simulate the vaporization behavior of potassium compounds in coal under various conditions. As a result, when the combustion temperature was increased from 900 to 1300 °C under O2/N2 conditions, the transformation of potassium from potassium-rich coal to PM1 decreased, because the formation mechanism of PM1 from volatile potassium had changed. When the combustion temperature was 900 or 1100 °C, K2SO4 was the main potassium compound vaporized and condensed to form PM1, with an average size of 0.5 μm. When the combustion temperature increased to 1300 °C, in addition to a small amount of K2SO4, gaseous KOH becomes the main potassium compound vaporized, most of which may react with aluminosilicates to form coarse particulates. The remaining vaporized K2SO4 and other sulfates/oxides condensed to form PM1, with an average size of 0.2−0.3 μm. As the combustion temperature was increased, volatile potassium transferred to coarse particulates in increasing amounts. Kaolin could effectively capture the vapor of potassium compounds during the potassium-rich coal combustion. When the potassium-rich coal mixed with kaolin was combusted at 900, 1100, and 1300 °C, the maximum capture efficiency was obtained at 1100 °C, as the result of combined effects of chemical adsorption increasing and physical activity decreasing with an increasing combustion temperature.

Combustion behaviour of biochars thermally pretreated via torrefaction, slow pyrolysis, or hydrothermal carbonisation and co-fired with pulverised coal

Experimental study on RC T-section beams with an FRP-strengthened web opening

CMDPAD: A Chinese multimodal dynamic personality and affect dataset for affect prediction in conversations

Evaluation of the structural integrity of the CPR1000 PWR containment under steam explosion accidents

Fast FRP strengthening technique for steel structures

The strong column–weak beam design philosophy in reinforced concrete frame structures: A literature review

This article presents a literature review of existing research on the strong column–weak beam design philosophy, which has been widely adopted in the seismic design of frame structures. A comprehensive review of this design philosophy, including its concept and research history, especially factors affecting the accurate calculation of the flexural capacity of beams [Formula: see text] and the determination of the column-to-beam flexural strength ratio [Formula: see text], is presented first. The development of design provisions of four representative countries for this design philosophy is also reviewed. The implementation of strong column–weak beam hierarchy in real structural design is then discussed, and existing problems are pointed out. Finally, different techniques for the seismic retrofit of existing reinforced concrete frames are reviewed.

PREDICTION OF PEELING BEHAVIOUR OF REINFORCED CONCRETE BEAMS WITH EXTERNALLY BONDED PLATES. DISCUSSION.

Keywords ADELAIDE UNIVERSITY CONCRETE, BEAMS, REINFORCED, PEELING, FAILURES, PREDICTION, PLATES, BONDED, EXTERNALLY, MODELS, DEBONDING, MATHEMATICAL, SHEAR, FLOW, METHODS, TESTS, STEEL... Show All

Push-out behavior of headed stud shear connectors in FRP-UHPC-steel double-skin tubular members (DSTMs)

The FRP-concrete-steel double-skin tubular members (DSTMs) have attracted worldwide research due to their excellent mechanical performance. However, the limitation of these DSTMs lies in the low strength and crack resistance of normal concrete. To further improve their mechanical performance and durability, a solution by replacing the normal concrete in DSTMs with ultra-high performance concrete (UHPC) is proposed. This research focused on the shear behavior of headed stud shear connectors in DSTMs, a crucial component in their overall performance. Through rigorous testing of sixteen push-out specimens, the effects of parameters including the compressive strength of concrete/UHPC, the steel fiber volume ratio in UHPC, and the diameter and layout of headed studs on the interfacial shear behavior of DSTMs were investigated. The test results not only proved that the application of UHPC in DSTMs resulted in a different failure mode and a higher interfacial shear performance, but also revealed that the investigated parameters obviously effected the interfacial shear load-slip responses of DSTM push-out specimens. Subsequently, the shear capacities of push-out specimens predicted by four of the existing theoretical models were compared with the test results. The comparison results indicated that a more accurate model for predicting the interfacial shear capacities of headed stud shear connectors in FRP-UHPC-steel DSTM is needed in future research.

Integrated self-sensing and self-healing cementitious composite with microencapsulation of nano-carbon black and slaked lime

Entrained-bed coal gasification modelling

A mathematical model was developed to simulate the Texaco Inc. Downflow Entrained Bed Pilot Plant Gasifier (5 ft dia, 20 ft. long steel vessel) with coal liquefaction residues as feedstocks. The gasifier was conceptually divided into three zones; the pyrolysis and volatile combustion zone, the gasification and combustion zone, and the gasification zone. The gas phase was assumed to be completely mixed at the entrance region followed by a region approximating plug flow. The solid phase was assumed to be a plug flow throughout the reactor. Temperature and concentration profiles along the reactor were obtained by solving the material and energy balances and taking into consideration the gasification kinetics, the transport rates, and the hydrodynamics of the gasifier. Good agreement was obtained between computations from the proposed model and the experimental pilot-plant data. Sensitivity of the parameters used in the model was tested and optimum operating conditions were determined by simulating reactor performance under various operating conditions. 21 references.