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| 1 | Pyridinic nitrogen enriched porous carbon derived from bimetal organic frameworks for high capacity zinc ion hybrid capacitors with remarkable rate capability显示文摘Aqueous zinc ion hybrid capacitors(ZIHCs)hold great potential for large-scale energy storage applications owing to their high safety and low cost,but suffer from low capacity and energy density.Herein,pyridinic nitrogen enriched porous carbon(nPC)was successfully synthesized via the growth,subsequent annealing and acid etching of bimetal organic frameworks for high capacity and safe ZIHCs with exceptional rate capability.Benefiting from the mesopores for easy ion diffusion,high electrical conductivity enabled by in-situ grown carbon nanotubes matrix and residual metal Co nanoparticles for fast electron transfer,sufficient micropores and high N content(8.9 at%)with dominated pyridinic N(54%)for enhanced zinc ion storage,the resulting nPC cathodes for ZIHCs achieved high capacities of 302 and137 m Ah g^(-1) at 1 and 18 A g^(-1),outperforming most reported carbon based cathodes.Theoretical results further disclosed that pyridinic N possessed larger binding energy of-4.99 eV to chemically coordinate with Zn2+than other N species.Moreover,quasi-solid-state ZIHCs with gelatin based gel electrolytes exhibited high energy density of 157.6 Wh kg^(-1) at 0.69 kW kg^(-1),high safety and mechanical flexibility to withstand mechanical deformation and drilling.This strategy of developing pyridinic nitrogen enriched porous carbon will pave a new avenue to construct safe ZIHCs with high energy densities. | Yao Li Pengfei Lu Ping Shang Lisha Wu Xiao Wang Yanfeng Dong Ronghuan He Zhong-Shuai Wu | 2021 | Journal of Energy Chemistry2021，30，5： | 3 |
| 2 | Optimization of a Heat Exchanger Using an ARM Core Intelligent Algorithm显示文摘In order to optimize heat transfer in a heat exchanger using an ARM(advanced RISC machine)core intelligent computer algorithm,a new type of controller has been designed.The whole control structure of the heat exchange unit has been conceived on the basis of seven functional modules,including data processing and output,human-computer interaction,alarm,and data communication.The main controller and communication controller have been used in a combined fashion and a new MCU(micro control unit)system scheme has been proposed accordingly.A fuzzy controller has been designed by using a fuzzy control algorithm,and a new mode of heat transfer for the heat exchanger has been implemented by combining the fuzzy controller and the PID(proportioning integral derivative)controller.Finally,the model has been applied to an actual heat exchange station to test and verify the performances of the new approach. | Yajuan Jia Juanjuan Wang Lisha Shang | 2020 | Fluid Dynamics & Materials Processing2020，16，5： | 2 |
| 3 | Highly efficient artificial blood coagulation shortcut confined on Ca-zeolite surface显示文摘It is challenging to develop an in w'fro catalytic system to conduct natural surface-confined enzymatic reactions in a stable,efficient,and spatially defined manner.Here,we report that an artificial catalyst,which composes of trypsin and a calcium ion exchanged zeolite Y(trypsin/CaY),is capable of conducting surface-confined thrombin generation,and then constructs an artificial shortcut for classic,natural and complex blood coagulation cascade.The Ca2+within the microporous cages play a key role in trypsin/CaY hybrid through tuning the bio-inorganic interaction and spatial orientation of the protease,which allows trypsin/CaY to display greatly enhanced catalytic performance in coagulation process.The in vivo efficiency of the artificial coagulation shortcut is further confirmed in massive bleeding and hemophilia animal models.Rapid hemostasis is achieved by trypsin/CaY hybrid in a hemophilia A mice tail bleeding model,where natural clotting system fails in response to bleeding event due to factor VIII deficiency.In a rabbit lethal femoral artery injury model,the blood loss of the artificial catalyst is decreased by 4-7 fold when compared to state-of-art clay-or zeolite-based topical agents. | Lisha Yu Bin Yu Hao Chen Xiaoqiang Shang Min He Mengchi Lin Dan Li Wenzhao Zhang Zhengzhong Kang Jiachen Li Fangjun Wang Liping Xiao Qi Wang Jie Fan | 2021 | Nano Research2021，14，9： | 0 |
| 4 | CFD Analysis of Fluid-Dynamic and Heat Transfer Effects Generated by a Fixed Electricity Transmission Line Interacting with an External Wind显示文摘The flow past a fixed single transmission conductor and the related heat transfer characteristics are investigated using computational fluid dynamics and a relevant turbulence model.After validating the method through comparison with relevant results in the literature,this thermofluid-dynamic problem is addressed considering different working conditions.It is shown that the resistance coefficient depends on the Reynolds number.As expected,the Nusselt number is also affected by Reynolds number.In particular,the Nusselt number under constant heat flux is always greater than that under a constant wall temperature. | Yajuan Jia Lisha Shang Jiangping Nan Guangping Hu Zhigang Fang | 2022 | Fluid Dynamics & Materials Processing2022，18，2： | 0 |
| 5 | A Genetic Algorithm for Optimizing Yaw Operation Control in Wind Power Plants显示文摘A genetic algorithm is proposed to optimize the yaw control system used for the stable and efficient operation of turbines in wind power plants.In particular,the factors that produce yaw static deviation are analyzed.Then,the sought optimization method for the yaw static deviation of the wind turbine is implemented by using a lidar wind meter in the engine room in order to solve the low accuracy problem caused by yaw static deviation.It is shown that fuzzy control can overcome problematic factors such as the randomness of wind direction and track the change of wind direction accurately.Power control implementation is simple,as only the voltage and current of the generator need to be measured. | Lisha Shang Yajuan Jia Liming Zheng Erna Shi Min Sun | 2022 | Fluid Dynamics & Materials Processing2022，18，3： | 0 |
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