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| 1 | Magnéli phases TinO2n-1 as novel ozonation catalysts for effective mineralization of phenol显示文摘Magnéli phases Ti_nO_(2n-1)have been demonstrated as promising environmentally friendly materials in advanced oxidation processes.In this study,Magnéli phases Ti_nO_(2n-1)have been used as catalysts for the ozonation of phenol in aqueous solution for the first time.The materials exhibited excellent catalytic ozonation activities both in phenol degradation and mineralization.When Ti_4O_7was added,the reaction rate was six-fold higher than that of with ozone alone,while the total organic carbon removal rate was substantially elevated from around 19.2%to 92%.By virtue of the good chemical stability of the materials,a low metal leaching of less than 0.15 mg·L^(-1)could effectively avoid the secondary pollution by metal ions.Radical quenching tests revealed·O_2^-and^1O_2to be active oxygen species for phenol degradation at p H 5.As semiconductor catalysts,Ti_nO_(2n-1)materials show electronic transfer capability.Ozone adsorbed at B-acid sites of the catalyst surface can capture an electron from the conversion of Ti(III)to Ti(IV),and is thereby broken into the active oxygen species.It was interesting to observe that Ti_nO_(2n-1)exhibit better catalytic activity for phenol degradation and mineralization with lower n value.The difference in electrical conductivity can be considered as a major factor for the catalytic performances.More highly conductive catalysts show a faster electron-transfer rate and better catalytic activity.Thus,significant evidences have been obtained for a single-electron-transfer mechanism of catalytic ozonation with Magnéli phases Ti_nO_(2n-1). | Xian Mao Fanglu Yuan Anqi Zhou Wenheng Jing | 2018 | Chinese Journal of Chemical Engineering2018，26，9： | 2 |
| 2 | Performance and theoretical study on corrosion inhibition of 2-(4-pyridyl)-benzimidazole for mild steel in hydrochloric acid显示文摘 | Fan Zhang Yongming Tang Ziyi Cao Wenheng Jing Zhenglei Wu Yizhong Chen | 2012 | Corrosion Science2012，，： | 2 |
| 3 | Interlayer-confined two-dimensional manganese oxide-carbon nanotube catalytic ozonation membrane for efficient water purification显示文摘Catalytic ozonation technology has attracted copious attention in water purification owing to its favorable oxidative degradation of pollutants and mitigation of membrane fouling capacity.However,its extensive industrial application has been restricted by the low ozone utilization and limited mass transfer of the short-lived radical species.Interlayer space-confined catalysis has been theoretically proven to be a viable strategy for achieving high catalytic efficiency.Here,a two-dimensional MnO_(2)-incorporated ceramic membrane with tunable interspacing,which was obtained via the intercalation of a carbon nanotube,was designed as a catalytic ozonation membrane reactor for degrading methylene blue.Benefiting from the abundant catalytic active sites on the surface of two-dimensional MnO_(2) as well as the ultralow mass transfer resistance of fluids due to the nanolayer confinement,an excellent mineralization effect,i.e.,1.2 mg O_(3)(aq)mg^(-1) TOC removal(a total organic carbon removal rate of 71.5%),was achieved within a hydraulic retention time of 0.045 s of pollutant degradation.Further,the effects of hydraulic retention time and interlayer spacing on methylene blue removal were investigated.Moreover,the mechanism of the catalytic ozonation employing catalytic ozonation membrane was proposed based on the contribution of the Mn(III/IV)redox pair to electron transfer to generate the reactive oxygen species.This innovative twodimensional confinement catalytic ozonation membrane could act as a nanoreactor and separator to efficiently oxidize organic pollutants and enhance the control of membrane fouling during water purification. | Dean Xu Tong Ding Yuqing Sun Shilong Li Wenheng Jing | 2022 | Frontiers of Chemical Science and Engineering2022，16，5： | 1 |
| 4 | Emulsions prepared by two-stage ceramic membrane jet-glow emulsification 显示文摘 | Jing Wenheng Wu Jun Xing Weihong | 2005 | AIChE Journal2005，51，5： | 1 |
| 5 | Evolutional analysis of coupling be- tween population and resource-environment in China 显示文摘 | Wenheng Wu Shuwen Niu | 2012 | Proce- dia Environmental Sciences2012，，12： | 1 |
| 6 | Characterization of dilute acid pretreatment of silvergrass for ethanol production显示文摘 | Guo Gialuen Chen Weihsi Chen Wenheng | 2008 | Bioresource Technology2008，99，14： | 1 |
| 7 | Improving the filtration performance of ZrO2 membrane in non-polar organic solvents by surface hydrophobic modification 显示文摘 | Gao Nengwen Li Mei Jing Wenheng | 2011 | J Membr Sci2011，375，12： | 1 |
| 8 | Portable and Scalable Algorithm for Irregular All - to - All Communication显示文摘 | Wenheng Liu Cho - Li Wang Prasanna Viktor K | 2002 | Journal of Parallel and Distributed Computing2002，62，10： | 1 |
| 9 | Portable and Scalable Algorithm for Irregular All-to-All Communication显示文摘 | Liu Wenheng Chao Li Wang Prasanna Viktor K | 2002 | Journal of Parallel and Distributed Computing2002，62，10： | 1 |
| 10 | Temperature-induced hydrophobicity transition of MXene membrane for directly preparing W/O emulsions显示文摘Although hydrophilic membranes are desired for reducing resistance to water permeation, hydrophilic surfaces are not used in the water-in-oil(W/O) membrane emulsification process because water spreads on the hydrophilic surface without forming droplets. Here, we report that a hydrophilic ceramic membrane can form a hydrophobic interface in diesel at a higher temperature;interestingly, the experiments show that the contact angle increases when the temperature rises. The hydrophilic membrane surface evolves into a hydrophobic interface, particularly near the boiling point of water, resulting in a water contact angle of 147.5° ± 1.2°. This work established a method for preparing W/O monodispersed emulsions by direct emulsification of hydrophilic ceramic membranes at a temperature close to the boiling point of water.Additionally, it made high flux of membrane emulsification of monodispersed W/O emulsions possible,which satisfied the industrial requirements of fluidized catalytic cracking in the petrochemical industry. | Yingxiang Ni Can Yuan Shilong Li Jian Lu Lei Yan Wei Gu Weihong Xing Wenheng Jing | 2023 | Chinese Journal of Chemical Engineering2023，55，3： | 0 |
| 11 | 6-24 Study of Heavy-ion-stimulated Gas Desorption Rate in CSRm显示文摘There is a definite requirement of high vacuum degree in synchrotron accelerator. According to a study[1], the static LEAR vacuum pressure was about 510?12 Torr, but local pressure bumps up to 10?9 Torr occurred during continuous injection of about 108 ions/s. A dynamic pressure increase was attributed to the outgassing of vacuum equipment due to the impact of lost ions. The ion-induced desorption can seriously limit the ion intensity, luminosity, and beam lifetime of the accelerator. | Chai Zhen Meng Jun Luo Cheng Li Peng Zheng Wenheng Niu Zhiwei Gao Yanmin | 2015 | IMP & HIRFL Annual Report2015，，1： | 0 |
| 12 | Geochemical Characteristics of Granitoids in the Eastern Sector of the Northern Tianshan Mountains in Xinjiang显示文摘The granitioids in question are located in the geosynclinal fold belt of the Northern Tianshan Mountains.The magmas are intruded into a Carboniferous marine volcanic-sedimentary rock series. forming a contempo-raneous. intermediate-basic to acid. composite intrusion. With a whole-rock Rb-Sr isochron age of 315.7 Ma. itis considered to be of middle Heicynian age. The granitoids have a SiO2 content of 48-78%, a calc-alkali indexof 60 and silica-alkali indices ρ=2.2-2.4 and σ=1.5-2. From basic to acid compositions, the total REE con-tent increases from 38 to 143 ppm. δEu ranges from 0.47 to 0.86 and the Eu anomalies are negative. Thenormalized curves of REE of various rock types are very similar. These coupled with the characteristics of traceelement geochemistry show that the intrusion is an island arc-continental margin, calc-alkaline one. Theδ18O values range from 5.8 to 8.9‰ and the 87Sr/86Sr initial ratio is 0.705. The materials of the intrusion arecomposed of a mixture of the magmas at the top of the upper mantle and in the lower crust, This indicates thatthe rocks might be consanguineous. differentiated and evolved products and possess the characteristics of Ⅰtype granites. | Wang Bixiang Li Zhaonai Zhao Guangzan Wang Fubao Zhang Shuizhe Fei Wenheng Institute of Geology, Chinese Academy of Geological Sciences, Beijing | 1990 | Acta Geologica Sinica(English Edition)1990，64，1： | 0 |
| 13 | Synthesis of ordered mesoporous manganese titanium composite oxide catalyst for catalytic ozonation显示文摘In this account,highly ordered mesoporous MnO_x/TiO_2composite catalysts with efficient catalytic ozonation of phenol degradation were synthesized by the sol–gel method.The surface morphology and properties of the catalysts were characterized by several analytical methods,including SEM,TEM,BET,XRD,FTIR,and XPS.Interestingly,Mn doping was found to improve the degree of order,and the ordered mesoporous structure was optimized at 3%doping.Meanwhile,MnO_xwas highly dispersed in the ordered mesoporous materials to yield good catalytic ozonation performance.Phenol could completely be degraded in 20 min and mineralized at 79%in 60 min.Thus,the catalyst greatly improved the efficiency of degradation and mineralization of phenol when compared to single O_3or O_3+TiO_2.Finally,the reaction mechanism of the catalyst was discussed and found to conform to pseudo-first-order reaction dynamics. | Chaofei Fei Dan Li Xian Mao Yu Guo Wenheng Jing | 2018 | Chinese Journal of Chemical Engineering2018，26，9： | 0 |
| 14 | Water Conservancy Projects and Utilization of Foreign Funds显示文摘In the period of the Ninth Five-Year Plan,a more important task ofconstruction and development is set before the water conservancyindustry,including building a group of major projects for floodprevention,power-generation,the storage of water,water diversion,and the improvement of dam construction on major rivers and floodprevention and draining projects,widely developing water conservancyconstruction mainly focusing on drainage and water-saving irrigationsystems.Water and soil preservation and the harnessing of riversshould be sped up,flood prevention construction in cities should befurther sped up,and measures should be adopted to ease the watershortage in many areas and cities. | He Wenheng,director of the International Cooperation Department of the Ministry of Water Conservancy | 1996 | China's Foreign Trade1996，，6： | 0 |
| 15 | 6-3 Closed Orbit Correction in Electron Cooler Section at CSRe显示文摘The injecting section and the cooler section are apart from each other at CSRm, while the electron cooler systemis installed at the injecting section of CSRe[1]. So for the CSRe we not only need to satisfy the beam injectingcondition but also need to satisfy the beam cooling condition. At present, we use the ramping bump and the kickerto inject beam, and after injection the bump disappear quickly and the beam goes to the cooling orbit and begincooling. This method has a disadvantage that the beam cooling condition cannot be satised until the bump isdown. In the past year, we try to nd a new method to correct the orbit of cooler section. Instead of using rampingbump we use the xed bump to satisfy the injecting and the cooling condition at the same time. | Tang Meitang Yang Xiaodong Mao Lijun Li Jie Ma Xiaoming Yan Tailai Zhao He Li Peng Chai Weiping Zheng Wenheng Zhang Xiaohu Yang Jiancheng Yuan Youjin Xia Jiawen | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 16 | 6-4 Longitudinal Electron Cooling Experiments at HIRFL-CSRe显示文摘The electron cooler was installed in one of the straight sections of CSRe which is used to provide high-qualitybeams for experiments. Longitudinally the dynamics of the cooling process have been studied for a series of electronbeam parameters and the friction force was measured with the aid of an RF-buncher for C6+ (122 MeV/u) and O8+(122 MeV/u) ions. The cooling time at different electron beam state have been measured, too. | Zhao He Mao Lijun Yang Xiaodong Li Jie Tang Meitang Ma Xiaoming Yan Tailai Shi Jian Yin Dayu Chai Weipin Sheng Lina Zhang Xiaohu Li Peng Zheng Wenheng Yang Jiancheng Yuan Youjin | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 17 | Progressive Population Citizenization in China:Experience and Implications显示文摘This paper examines the progressive process of population Citizenization in China according to the availability of urban basic public services and relevant policy changes, which is differentiated,by regid constraint before 1978, target control between 1978 and 2000, policy guidance between 2000 and 2010, and government leading and promoting since 2010. While the reform of the national house-hold registration system and the full implementation of the residence permit system provide guarantee for speeding up the citizenization process, local or mass practice is crucial to the effectiveness of population citizenization. The major factors affecting popultion citizenization come from city, countryside, farmers(migrant workers) and management system, which are generally influenced by cost of living, job opportunities, housing costs, living habits, and educational quality. Unifi ed city-countryside system, effective urban and rural push-pull mechanism and assimilation of urban environment are policy priorities for orderly and progressively promoting population citizenization. | Wu Wenheng | 2015 | China Population Today2015，32，6： | 0 |
| 18 | Using an Artificial Intelligence Method to Recognize Seismic Precursory Anomaly (SPA)显示文摘In this work,we seek for a new way to recognize and analyze the Seismic Precursory Anomaly(SPA)quantitatively.For further study of the mechanism of SPA,an artificial intelligence method,the Machine Discovery(MD)method,is proposed to process the Seismic Precursor Observation(SPO)data and to fit an analytic function to them.The analytic function is used as a criterion to identify the SPA.The algorithm of MD is worked out based on the theory of Recursive Function(RF).The data of Amplitude Factor of Solid Tide(7 value)are processed by the proposed method.We find that the subsequent data fit to the extrapolation of the discovered function during the quiet period,whereas they deviate from it before a strong earthquake.Finally,the feasibility of quantitative analysis of the SPA is testified. | Zheng Wenheng,Chen Junhua,Yan Zunguo,Zhang Qiuwen,and Yang LimingInstitute of Seismology,SSB,Wuhan 430071,ChinaEarthquake Research Institute of Lanzhou,SSB,Lanzhou 730000,China | 1997 | Earthquake Research in China1997，11，1： | 0 |
| 19 | Heat treatment effects on the metastable microstructure,mechanical property and corrosion behavior of Al-added CoCrFeMnNi alloys fabricated by laser powder bed fusion显示文摘With the development of aerospace and transportation,high-strength structural materials manufactured by additive manufacturing techniques get more attention,which allows the production of counterparts with complex structures.This work investigates Al-added CoCrFeMnNi high-entropy alloys(Al-HEAs)pre-pared by laser powder bed fusion(PBF-LB),adding 4.4 wt.%Al reducing approximately 7%density.The contribution of post-heat-treatment to microstructure,mechanical properties,and corrosion behaviors are explored.Hot cracking along with grain boundaries in the as-built PBF-LB Al-HEAs is determined,which comes from the residual liquid film as a larger solidification temperature range by adding Al.The PBF-LB Al-HEAs mainly consist of a face-centered cubic(FCC)matrix with Al/Ni/Mn decorated dislocation cells therein and a minor body-centered cubic(BCC)phase.Upon 850℃ annealing treatment,massive BCC phases(ordered NiAl and disordered Cr-rich precipitates)generate at the dislocation cell/grain bound-aries and the dislocation cells are still retained.However,the volume fraction of BCC phases and the dislocation cells vanish after 1150℃ solution treatment.As a result,Al-HEA850 shows an over 1000 MPa yield strength with nearly no ductility(<3%);the Al-HEA1150 exhibits considerable strength-ductility properties.Meanwhile,the Al-HEA850 demonstrates the worst pitting corrosion resistance due to the preferential dissolution of the NiAl precipitates in chloride-containing solutions.After comparatively de-liberating the evolution of strength-ductility and localized corrosion,we built a framework about the effects of the heat treatment on the mechanical property and degradation behavior in additively manu-factured Al-added high-strength HEAs. | Decheng Kong Li Wang Guoliang Zhu Yiqi Zhou Xiaoqing Ni Jia Song Liang Zhang Wenheng Wu Wei Wu Cheng Man Da Shu Baode Sun Chaofang Dong | 2023 | Journal of Materials Science & Technology2023，，7： | 0 |
| 20 | Seismic Behavior Analysis of Steel Tower of Self-anchored Suspension Bridge显示文摘Self-anchored suspension bridge is composed of tower and its foundation, stiffened beam, main cable, sling, side pier and its foundation, auxiliary pier and its foundation. The performance and importance of the components of the bridge are different. The main tower of self-anchored suspension bridge is a very important component. Once the injury and damage occur under earthquake, it is not only difficult to inspect and repair, let alone replace. This paper calculates the seismic performance of self-anchored suspen-sion bridge steel tower based on the application of Wuhan Gutian Bridge steel tower. | Ke Zhang Zehua Deng Wenheng Zhu | 2018 | Frontiers Research of Architecture and Engineering2018，1，2： | 0 |
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