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| 1 | A readily monitored and controllable hydrothermal system for the facile,cost-effective transformation of FGD gypsum to calcium sulfate hemihydrate whiskers显示文摘The controllable transformation of flue gas desulfurization(FGD)gypsum to calcium sulfate hemihydrate(HH)whiskers under facile,readily monitored,and cost-effective hydrothermal conditions could play a vital role in the preparation of high quality HH whiskers and improve our understanding of the transformation process.This work assessed the conversion of FGD gypsum to HH whiskers in 5×10^(-4)mol/L H_(2)SO_(4)and 1.5 wt%CuCl_(2)at 120℃while determining the effects of temperature as well as H_(2)SO_(4)and CuCl_(2)concentrations on transformation kinetics.The preparation of HH whiskers was found to involve a solution-mediated transformation from the dihydrate(DH)to theα-HH.This transition was determined to proceed via a dissolution crystallization mechanism,the rate of which was controlled by nucleation and growth of the HH whiskers.An autocatalytic kinetic model was established based on variations in the HH whiskers mole fraction over time,and this model accurately fit the experimental data with R2=0.990.Increasing the temperature or H_(2)SO_(4)concentration accelerated the transformation by modifying the super-saturation and water activity in the reaction solution,while increasing the CuCl_(2)concentration had the opposite effect.The hydrothermal conditions had an important effect on the transformation from FGD gypsum to HH whiskers. | Bolun Cao Xiao Wang Xiaoting Zhang Biao Jin Zhuoyue Xu Xueping Liu Wei Zhang Liushuan Yang | 2021 | Particuology2021，19，1： | 8 |
| 2 | Efficient generation of mice carrying homozygous double-floxp alleles using the Cas9-Avidin/Biotin-donor DNA system显示文摘 | Ming Ma Fengfeng Zhuang Xiongbing Hu Bolun Wang Xian-Zi Wen Jia-Fu Ji Jianzhong Jeff Xi | 2017 | Cell Research2017，27，4： | 7 |
| 3 | Computational fluid dynamics simulation of hydrodynamics in the riser of an external loop airlift reactor显示文摘 | Xuedong Jiang Ning Yang Bolun Yang | 2016 | Particuology2016，14，4： | 6 |
| 4 | Effects of soaking process on arsenic and other mineral elements in brown rice显示文摘One of the main food crops in the world,rice can accumulate high levels of arsenic from flooded paddy soils,which seriously threatens human health.Soaking,a common processing method for brown rice products,especially for brown rice noodles,was investigated in this study.Japonica rice(Dao Hua Xiang No.2)and Indica rice(Ye Xiang You No.3)were selected for studying the effects of soaking on arsenic concentrations,species,and distributions.Results revealed that soaking can efficiently remove arsenic in these two rice varieties,and the main part of removal is endosperm with the maximal rate of about 40%.Inorganic arsenic(I-As)(about 85%)is the main species of arsenic reduction.Meanwhile,the variations of four other elements(i.e.,Mg,Ca,Zn,and Fe)were analyzed.Collectively,the findings of this study indicate that soaking can efficiently remove arsenic in brown rice under controlled soaking conditions,which thereby reduces the arsenic intake for brown rice customers. | Fan Zhang Fengying Gu Huili Yan Zhenyan He Bolun Wang Hao Liu Tingting Yang Feng Wang | 2020 | Food Science and Human Wellness2020，9，2： | 5 |
| 5 | An aviation oxygen supply system based on a mechanical ventilation model显示文摘At high altitudes, an Aviation Oxygen Supply System(AOSS) protects pilots from low pressure and hypoxia by continuously providing oxygen corresponding to the pilots' dynamic respiratory properties.An AOSS mainly consists of oxygen supercharging machines which are used in a high-altitude flight cabin to supply pressurized oxygen to pilots.Therefore, it is of great significance to study the airflow dynamic characteristics of an AOSS for safe, continuous, and efficient oxygen supply.In this paper, an AOSS is firstly simplified and considered as a mechanical ventilation system.Then, its corresponding mathematical model is constructed.Next, to verify the mathematical model, a prototype AOSS with a lung simulator is proposed for an experimental study.Afterwards, to build a foundation for the optimization of the AOSS, the airflow dynamic characteristics of an aircraft are analyzed, and the effects of key parameters on the respiration system are researched.Through experimental and simulation studies, it can be concluded that the mathematical model is effective.Subsequently, for stability during the respiration process, we consider setting the equivalent throttling areas of the inspiration and expiration pipelines smaller within certain limits; additionally, an excessively high oxygen supply pressure will disturb smooth airflow, and in a low-pressure environment, the pressure can be 84 cm H_2O lower than the standard atmospheric pressure.This research can be referred to in the design of an oxygen supply system and the study on optimization of airflow dynamic characteristics. | Yan SHI Yixuan WANG Maolin CAI Bolun ZHANG Jian ZHU | 2018 | Chinese Journal of Aeronautics2018，31，1： | 4 |
| 6 | Investigation of the Influence of Inclination Angle and Diffusion Angle on the Film Cooling Performance of Chevron Shaped Hole显示文摘The film cooling performance of chevron holes with different inclination angles and exit lateral diffusion angles has been studied experimentally and numerically. The inclination angles include 35° and 55°. The exit lateral diffusion angles include 20° and 25°. The film cooling effectiveness, heat transfer coefficient and discharge coefficient were measured on a flat plate model by transient liquid crystal measurement technique under four blowing ratios. The results show that the large inclination angle reduces the film cooling effectiveness. The influence of diffusion angle has two aspects: the large diffusion angle leads to mainstream ingestion and decreases film cooling effectiveness at M=1.0 and 1.5; however, the large diffusion angle increases the film cooling effectiveness at high blowing ratio of 2.0, because the larger hole exit area decreases the normal momentum component of the film jet. The large inclination angle decreases the heat transfer coefficient in the right downstream region at M=0.5 and 1.0. The large diffusion angle enhances the heat transfer in the right downstream of the holes in M=0.5~1.5 conditions. The chevron hole with large inclination angle generally has the highest discharge coefficient. | FU Zhongyi ZHU Huiren LIU Cunliang WEI Jiansheng ZHANG Bolun | 2018 | Journal of Thermal Science2018，27，6： | 3 |
| 7 | Effect of Cultural Measures on Nutrient Contellts in Rice Plants with Erect Panicles显示文摘Since1981,newricevarietieswitherectpanicles,suchasLiaojing5,Shennong91,Liaojing326andShennong8801,havebeenbredinLiaoningProvinceofChina.Experimelltalresultsindicatedthatthegrainyieldsofvarietieswitherectpaniclesnotonlyexceededthoseofcultivarswithcurv... | WANG BOLUN LIU XINAN YU GUIRUI WANG SHUI and ZOU BANGJI(Shenyang Agricultural University, Shenyang 110161 (China))(Institute Of Applied Ecolopy, the Chinese Academy of Sciences, Shenyany 110015 (China))(Received November 8, 1998 revised December 21, 1998) | 1999 | Pedosphere1999，9，3： | 3 |
| 8 | Nutritive Equilibrium in Rice Plant Populations for High Yield显示文摘The effects of nitrogen, phosphorus and potassium application level, seed rate and transplanting density on the growth and development of rice plants were studied to find out nutrient status in high-yielding rice plants and to increase grain yield by adequate fertilization. There was an equilibrium relationship among nutrient elements for high-yielding rice plant populations. The equilibrium index of nutrient amount, content and distribution in high-yielding rice plants should be generally greater than-2 but less than 2. The optimum nutritive proportion of nitrogen: phosphorus: potassium assimilated by the plants was about 10: 2: 9 at the ripening stage. But the content and the proportion varied with the growth stages. Therefore, the nutrient in rice plant populations should be in a dynamic equilibrium, so as to achieve high yield. | WANG BOLUN LIU XINAN YU GUIRUI SU ZHENGSHU and WANG SU (Shenyang Agricultural University, Shenyang 110161, China) | 1999 | Pedosphere1999，9，1： | 3 |
| 9 | Optimal predictive sliding-mode guidance law for intercepting near-space hypersonic maneuvering target显示文摘The design of optimal guidance law for intercepting a near-space hypersonic maneuvering target with bounded inputs is considered. Firstly, a maneuvering model for near-space hypersonic aircraft is given. Then, the aircraft acceleration prediction can be obtained using this model with two neural networks. By using the target acceleration prediction, which is taken into account when calculating the Zero Effort Miss(ZEM), an optimal sliding-mode guidance law is proposed to fulfill the guidance task. An adaptive sliding-mode switch term is designed to deal with actuator saturation and prediction errors. Finally, numerical simulations show that the proposed guidance law can reduce the energy consumption and the terminal acceleration command of the interceptor effectively. | Bolun ZHANG Di ZHOU | 2022 | Chinese Journal of Aeronautics2022，35，4： | 3 |
| 10 | Chemical looping gasification of maceral from low-rank coal: Products distribution and kinetic analysis on vitrinite显示文摘The product distribution and kinetic analysis of low-rank coal vitrinite were investigated during the chemical looping gasification(CLG)process.The acid washing method was used to treat low-rank coal,and the density gradient centrifugation method was adopted to obtain the coal macerals.By combining thermogravimetric analysis and online mass spectrometry,the influence of the heating rate and oxygen carrier(Fe2O3)blending ratio on product distribution was discussed.The macroscopic kinetic parameters were solved by the Kissinger-Akahira-Sunose(KAS)method,and the main gaseous product formation kinetic parameters were solved by the iso-conversion method.The results of vitrinite during slow heating chemical looping gasification showed that the main weight loss interval was 400–600℃,and the solid yield of sample vitrinite-Fe-10 at different heating rates was 64.30%–69.67%.When b=20℃·min^(-1),the maximum decomposition rate of vitrinite-Fe-10 was 0.312%min1.The addition of Fe2O_(3)reduced the maximum decomposition rate,but by comparing the chemical looping conversion characteristic index,it could be inferred that the chemical looping gasification of vitrinite might produce volatile substances higher than the pyrolysis process of vitrinite alone.The average activation energy of the reaction was significantly reduced during chemical looping gasification of vitrinite,which was lower than the average activation energy of 448.69 kJ·mol^(-1) during the pyrolysis process of vitrinite alone.The gaseous products were mainly CO and CO_(2).When the heating rate was 10℃·min^(-1),the highest activation energy for CH4 formation was 21.353 kJ·mol^(-1),and the lowest activation energy for CO formation was 9.7333 kJ·mol^(-1).This study provides basic data for exploring coal chemical looping gasification mechanism and reactor design by studying the chemical looping gasification process of coal macerals。 | Bo Zhang Bolun Yang Wei Guo Song Wu Jie Zhang Zhiqiang Wu | 2021 | Chinese Journal of Chemical Engineering2021，34，8： | 2 |
| 11 | New FCC process minimizes gasoline olefin,increase propylene显示文摘 | Wang Longyan Yang Bolun Wang Guoliang | 2003 | Oil Gas J2003，101，6： | 1 |
| 12 | Preparation of Molecularly Imprinted Sericin/ Poly(vinyl alcohol) Electrospun Fibers for Selective Removal of Methylene Blue显示文摘 | ZHAO Rui LI Xiang SUN Bolun LI Yumei LI Yanzi WANG Ce | 2017 | Chemical Research in Chinese Universities2017，33，6： | 1 |
| 13 | Synthesis of dimethyl carbonate from urea and methanol using polyphosphoric acid as catalyst显示文摘 | Sun Jianjun Yang Bolun Wang Xiaoping | 2005 | Journal of Molecular Catalysis A:Chemical2005，239，12： | 1 |
| 14 | Reaetive rectifying for producing dimethyl carbonate显示文摘 | Wang Xiaoping Yang Bolun Wang Dongpeng | 2006 | Chemical Engineering Journal2006，122，12： | 1 |
| 15 | Controlled synthesis of CeO2 nano particles from the coupling route of homogenous precipitation with mieroemulsion显示文摘 | He Yongjun Yang Bolun Cheng Guangxu | 2003 | Materials letters2003，57，6： | 1 |
| 16 | Reactive rectifying for producing dimethyl carbonate显示文摘 | Wang Xiaoping Yang Bolun Wang Dongpeng | 2006 | Chemical Engineering Journal2006，122，12： | 1 |
| 17 | New FCC process minimizes gasoline olefin, increase propylene显示文摘 | WANG Longyan YANG Bolun WANG Guoliang | 2003 | Oil & Gas Journal2003，101，6： | 1 |
| 18 | Molecule simulation for the secondary reactions of fluid catalytic crocking gasoline by the method of structure oriented lumpirg combined with monte carlo 显示文摘 | Yang Bolun Zhou Xiaowei Chen Chun | 2008 | Industrial & Engineering Chemistry Research2008，47，14： | 1 |
| 19 | Design and control of the cryogenic distillation process for purification of synthetic natural gas from methanation of coke oven gas 显示文摘 | Li Xingxing Li Jiageng and Yang Bolun | 2014 | Ind Eng Chem Res2014，53，19： | 1 |
| 20 | Carbon Dots-in-Zeolite via In-Situ Solvent-Free Thermal Crystallization:Achieving High-Efficiency and Ultralong Afterglow Dual Emission显示文摘Organic afterglow materials are highly desirable for optoelectronic applications,but they usually suffer from complex preparation process,low quantum efficiency,and short lifetime due to the ultrafast deactivation of the highly active excited states involved.Here,we succeeded in achieving solventfree thermal syntheses of high-efficiency afterglow CDs@zeolite composite materials by simply grinding the solid raw materials of zeolite and precursor CDs at room temperature,followed by thermal crystallization.This method afforded maximum embedding of CDs into growing zeolite crystals,as well as strong host–guest interaction to surpass the nonradiative transition of CDs,thus producing composite materials with ultralong dual emission of thermally activated delayed fluorescence and room temperature phosphorescence with a record high lifetime of 1.7 and 2.1 s,respectively,and the quantum yield of 90.7%.Furthermore,in a preliminary experiment,we applied the composite materials in alternatingcurrent light-emitting diode supplementary lighting,which exhibited a promising potential in optoelectronic applications. | Hongyue Zhang Kaikai Liu Jiancong Liu Bolun Wang Chengyu Li Wei Song Jiyang Li Ling Huang Jihong Yu | 2020 | CCS Chemistry2020，2，3： | 1 |
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