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| 1 | Supersonic swirling characteristics of natural gas in convergent-divergent nozzles显示文摘超声的嘴是能被用来压缩并且把水和重烃与天然气分开的一台新仪器。在会聚分叉的嘴的天然气的打漩的分离数字地基于合并中央身体的一个新图案被模仿。煤气的流动的主要参数的轴的分发被调查,当煤气的流动的基本参数在嘴出口作为半径的函数被获得时。打漩的分离上的嘴几何学的效果被分析。数字结果证明水和重烃能被压缩并且在低温度的联合效果下面与天然气分开了(80 愠汬? 祥獥吗? | Wen Chuang Cao Xuewen Yang Yan Zhang Jing | 2011 | Petroleum Science2011,8,1: | 8 |
| 2 | Solution-processed lead-free bulk 0D Cs3Cu2I5 single crystal for indirect gamma-ray spectroscopy application显示文摘Bulk scintillators that are with high density,low cost,and fine pulse-height energy spectral resolution,and are nonhygroscopic and user friendly,are desired for high-energy gamma-ray spectroscopy application.Recently,low-cost solution-processed perovskite nanoscintillators have been demonstrated with outstanding performances for indirect low-energy X-ray detection;however,the stability and thickness are not suitable for high-energy gamma-ray detection.Here,we report scintillation performances of a low-cost solution-processed bulk 0D Cs3Cu2I5 single crystal.The self-trapped exciton emission results in a large Stokes shift (109 nm) that is reabsorption free.A broad X-ray excited emission matches well with the sensitivity of a silicon photodiode.The unique Cs+ surrounded isolated [Cu2I5]3-cluster scintillator provides ultra-stability in air and strong radiation hardness under high-dose gammaray exposure from a 60Co source.This solution-processed Cs3Cu2I5 scintillator is expected with low-cost and has detection performances comparable to commercial alkali-halide scintillator products. | Qiang Xu Juan Wang Qindong Zhang Xiao Ouyang Maheng Ye Weiting Xie Xuewen Yan Deyuan Li Xiaoping Ouyang Xiaobing Tang Xiaodong Zhang | 2021 | Photonics Research2021,9,3: | 3 |
| 3 | Effects of reduction temperature and content of Pd loading on the performance Pd/CeO2 catalyst for CO oxidation显示文摘The content of noble metal loading and the reduction process of the catalysts are important factors influence the economic indicator and catalytic performance for industrial catalysis. In the present work, Pd/CeO2NT (Pd supported on the CeO2 nanotubes) catalysts are prepared with the hydrothermal synthesized CeO2NT and glutathione (GSH) reduced Pd nanoparticles via impregnation. The content of Pd loading as well as the catalysts reduction temperature are optimized to the CO oxidation reduction. Our results show that the best Pd loading is 1.5%Pd/CeO2NT. The catalysts reduced at 350 ℃ for 2 h prior to catalytic reaction perform the best toward CO oxidation, which reaches completely CO conversion at 70 ℃. The XRD, Raman, H2-TPR, TEM, BET and XPS characterization reveal that the excellent catalytic performance of 350 °C 1.5%Pd/CeO2NT sample can be attributed the high Pd^0 species and oxygen vacancy in the sample, which are important factors influence the activity of the catalysts. | Yue Yan Huaxi Li Zhanghui Lu Xuewen Wang Rongbin Zhang Gang Feng | 2019 | Chinese Chemical Letters2019,30,6: | 2 |
| 4 | Synthesis of graphene oxide nanoribbons/chitosan composite membranes for the removal of uranium from aqueous solutions显示文摘In this study,a graphene oxide nanoribbons/chitosan(GONRs/CTS)composite membrane was successfully prepared by encapsulating CTS into GONRs,which were unzipped from multi-walled carbon nanotubes.The GONRs/CTS composite membrane so prepared was characterized using scanning electron microscopy,X-Ray diffraction and Fourier transform infrared spectroscopy.The effects of the experimental conditions such as the pH(2-7),adsorbent dosage(10-50mg),experimental time(5min-32h),uranium concentration(25-300mg·L^-1),experimental temperature(298K-328K)on the adsorption properties of the composite membrane for the removaal of U(VI)were investigated.The results showed that the U(VI)adsorption process of the GONRs/CTS composite membrane was pH-dependent,rapid,spontaneous and endothermic.The adsorption process followed the pseudosecondary kinetics and Langmuir models.The maximum U(VI)adsorption capacity of the GONRs/CTS composite membrane was calculated to be 320mg·g^-1.Hence,the GONRs/CTS composite membrane prepared in this study was found to be suitable for separating and recovering uranium from wastewater. | Xuewen Hu Yun Wang Jinbo Ou Yang Yang Li Peng Wu Hengju Zhang Dingzhong Yuan Yan Liu Zhenyu Wu Zhirong Liu | 2020 | Frontiers of Chemical Science and Engineering2020,14,6: | 1 |
| 5 | Numerical simulation of natural gas flows in diffusers for supersonic separators显示文摘 | Wen Chuang Cao Xuewen Yang Yan | 2012 | Energy2012,37,1: | 1 |
| 6 | Nonsmooth equations approach to constrained Minmax problem显示文摘 | Yan Gao Li Xuewen | 2005 | Applications of mathematics2005,50,2: | 1 |
| 7 | Swirling flow of natural gas in supersonic separators 显示文摘 | Wen Chuang Cao Xuewen Yang Yan | 2011 | Chemical En- gineering and Processing: Process Intensification2011,50,7: | 1 |
| 8 | Evaluation of natural gas dehydration in supersonic swirling sepa- rators applying the Discrete Particle Method 显示文摘 | Wen Chuang Cao Xuewen Yang Yan | 2012 | Ad- vanced Powder Technology2012,23,2: | 1 |
| 9 | Comparative proteomic analysis of cucumber powdery mildew resistance between a singlesegment substitution line and its recurrent parent显示文摘Powdery mildew(PM)is considered a major cause of yield losses and reduced quality in cucumber worldwide,but the molecular basis of PM resistance remains poorly understood.A segment substitution line,namely,SSL508-28,was developed with dominant PM resistance in the genetic background of PM-susceptible cucumber inbred line D8.The substituted segment contains 860 genes.An iTRAQ-based comparative proteomic technology was used to map the proteomes of PM-inoculated and untreated(control)D8 and SSL508-28.The number of differentially regulated proteins(DRPs)in SSL508-28 was almost three times higher than that in D8.Fourteen DRPs were located in the substituted segment interval.Comparative gene expression analysis revealed that nodulin-related protein 1(NRP1)may be a good candidate for PM resistance.Gene Ontology enrichment analysis showed that DRPs functioning in tetrapyrrole biosynthetic process,sulfur metabolic process and cell redox homeostasis were specifically enriched in the resistant line SSL508-28.DRPs categorized in the KEGG term photosynthesis increased in both lines upon PM infection,suggesting that the strategies used by cucumber may be different from those used by other crops to react to PM attacks at the initial stage.The measurement of hydrogen peroxide and superoxide anion production and net photosynthetic rate were consistent with the changes in protein abundance,suggesting that the proteomic results were reliable.There was a poor correlation between DRPs measured by iTRAQ and the corresponding gene expression changes measured by RNA-seq with the same experimental design.Taken together,these findings improve the understanding of the molecular mechanisms underlying the response of cucumber to PM infection. | Xuewen Xu Xueli Liu Yali Yan Wei Wang Kiros Gebretsadik Xiaohua Qi Qiang Xu Xuehao Chen | 2019 | Horticulture Research2019,6,1: | 1 |
| 10 | Enhancement of red upconversion emission intensity of Ho^(3+) ions in NaLuF4:Yb^(3+)/Ho^(3+)/Ce^(3+)@NaLuF_(4) core-shell nanoparticles显示文摘The red upconversion emission of Ho^(3+)ions,in the optical window of biological tissue,exhibits excellent prospects in biological applications.This study aims to enhance the red upconversion emission intensity of Ho^(3+)ions in NaLuF_(4):20%Yb^(3+)/2%Ho^(3+)/12%Ce^(3+) nanoparticles through building different core–shell structures with different excitation wavelengths.A significantly enhanced red upconversion emission with a higher red-to-green ratio was successfully obtained in NaLuF_(4):20%Yb^(3+)/2%Ho^(3+)/12%Ce^(3+)@NaLuF_(4) core–shell nanoparticles by introducing the Yb^(3+)and Yb^(3+)/Nd^(3+)ions into the NaLuF_(4) shell,with enhancement of the red emission occurring when Yb^(3+)and Nd^(3+)ions in the shell transfer more excitation energy to the Ho^(3+)ions.Investigation of the red emission enhancement mechanism is based on spectral characteristics and lifetimes.We examined the synergistic effect of dual-wavelength co-excitation NaLuF_(4):20%Yb^(3+)/2%Ho^(3+)/12%Ce^(3+)@NaLuF_(4):10%Yb^(3+)/15%Nd^(3+)core–shell nanoparticles to establish optimal excitation conditions.It is hoped that this method,using red upconversion emission core–shell nanoparticles with multi-mode excitation,can provide new ways to expand the applications of rare-earth luminescent materials in biomedicine and anti-counterfeiting. | Wei Gao Xiaotong Cheng Yu Xing Shanshan Han Binhui Chen Qingyan Han Xuewen Yan Jihong Liu Lin Liu Jun Dong | 2022 | Journal of Rare Earths2022,40,4: | 1 |
| 11 | Recent Advances in Electrolytes for High-Voltage Cathodes of Lithium-Ion Batteries显示文摘With the increasing scale of energy storage,it is urgently demanding for further advancements on battery technologies in terms of energy density,cost,cycle life and safety.The development of lithium-ion batteries(LIBs)not only relies on electrodes,but also the functional electrolyte systems to achieve controllable formation of solid electrolyte interphase and high ionic conductivity.In order to satisfy the needs of higher energy density,high-voltage(>4.3 V)cathodes such as Li-rich layered compounds,olivine LiNiPO_(4),spinel LiNi_(0.5)Mn_(1.5)O_(4) have been extensively studied.However,high-voltage cathodebased LIBs fade rapidly mainly owing to the anodic decomposition of electrolytes,gradually thickening of interfacial passivation layer and vast irreversible capacity loss,hence encountering huge obstacle toward practical applications.To tackle this roadblock,substantial progress has been made toward oxidation-resistant electrolytes to block its side reaction with high-voltage cathodes.In this review,we discuss degradation mechanisms of electrolytes at electrolyte/cathode interface and ideal requirements of electrolytes for high-voltage cathode,as well as summarize recent advances of oxidation-resistant electrolyte optimization mainly from solvents and additives.With these insights,it is anticipated that development of liquid electrolyte tolerable to high-voltage cathode will boost the large-scale practical applications of high-voltage cathode-based LIBs. | Wenhui Hou Yang Lu Yu Ou Pan Zhou Shuaishuai Yan Xi He Xuewen Geng Kai Liu | 2023 | Transactions of Tianjin University2023,29,2: | 1 |
| 12 | Numerical simulation of natural gas flows in diffusers for supersonic separators显示文摘 | WEN Chuang CAO Xuewen YANG Yan | 2012 | Energy2012,37,1: | 1 |
| 13 | An unconventional supersonic liquefied technology for natural gas显示文摘 | WEN Chuang CAO Xuewen YANG Yan | 2012 | Energy Education Science and Technology Part A: Energy Science and Research2012,30,1: | 1 |
| 14 | Design, Synthesis, Structure-Activity Relationship and Insecticidal Activities of Trifluoromethyl-Containing Sulfiliminyl and Sulfoximinyl Phthalic Acid Diamide Structure显示文摘Due to a novel mode action,low toxicity to mammals and low residue characteristics,phthalic acid diamides have aroused considerable interests in agricultural chemistry.With introduction of N-cyano,N-trifluoroacetyl,N-carbamoylsulfiliminyl and sulfoximinyl substituents into phthalamides,12 novel derivatives containing trifluoromethyl moiety were designed and synthesized.All title compounds were characterized by ^(1)H NMR and high-resolution mass spectrometry.The preliminary results of biological activity assessment indicated that some title compounds exhibited moderate to good insecticidal activities against oriental armyworm(Pseudaletia separata Walker).In particular,Va gave higher activity against oriental armyworm and diamondback moth.The present work reported that the new trifluoromethylated diamides incorporating N-trifluoroacetylsulfoximinyl moieties are potential lead compounds for further structure optimization,providing some insight into the relating structure-activity relationship. | Sha Zhou Tao Yan Sha Zhou Xuewen Hua Baolei Wang Yucheng Gu Lixia Xiong Yongqiang Li Zhengming Li | 2014 | Chinese Journal of Chemistry2014,32,7: | 1 |
| 15 | Swirling Effects on the Performance of Supersonic Separators for Natural Gas Separation显示文摘 | WEN Chuang CAO Xuewen YANG Yan | 2011 | Chemical Engineering & Technology2011,34,9: | 1 |
| 16 | Swirling flow of natural gas in supersonic separators显示文摘 | Wen Chuang Cao Xuewen Yang Yan | 2011 | Chemical Engineering and Pro- cessing : Process Intensification2011,50,7: | 1 |
| 17 | Numerical simu lation of natural gas flows in diffusers for supersonic separators 显示文摘 | Wen Chuang Cao Xuewen Yang Yan | 2012 | Energy2012,37,1: | 1 |
| 18 | Cr-doped Na_(3)V_(2)(PO_(4))_(3)@C enables high-capacity with V^(2+)/V^(5+)reaction and stable sodium storage显示文摘Due to its abundant sodium content and low cost,sodium-ion battery(SIB)has become an effective substitute and supplement for lithium-ion batteries,which has a broad development prospect in largescale energy storage systems.Na-super-ionic conductor(NASICON)structural materials have stable 3D skeleton structures and open Na+transport channels,which is a very promising SIB cathode material.But in the typical NASICON material Na_(3)V_(2)(PO_(4))_(3)(NVP),the number of electrons involved in NVP per formula unit is less than 2 at the stable voltage window,which limits the further improvement of battery performance.In this work,we report another NASICON structured Na_(3)V_(4/3)Cr_(2/3)(PO_(4))_(3)@C(NVCP@C),which is obtained by Cr-doped NVP through spray drying.By taking full advantage of the voltage platforms of V^(5+/4+),V^(4+/3+),and V^(3+/2+)in the window of 1.5-4.4 V,NVCP@C delivered a high discharge capacity(175 mAh g^(-1))and durable cyclability(86%capacity retention for 2000 cycles).In-situ X-ray diffraction results demonstrate that the reversible structural evolution accompanies by solid-solution reaction and two-phase reaction mechanisms co-exist during charge/discharge processes.When coupled with Na^(+)preembedded hard carbon(HC),the assembled NVCP@C//HC full cell delivers a high capacity(105 mAh g^(-1))and long cycling performance(70%after 1000 cycles).This Cr-doped NVP method offers new insights into the design of high-energy NASICON-structured cathode materials. | Bo Mai Boyu Xing Yunfan Yue Nianyao Cai Congcong Cai Sitian Lian Hao Fan Mengyu Yan Ting Zhu Ping Hu Xuewen Wang Liqiang Mai | 2023 | Journal of Materials Science & Technology2023,,34: | 0 |
| 19 | Vacuum wetting of Ag/TA2 to develop a novel micron porous Ti with significant biocompatibility and antibacterial activity显示文摘Porous Ti with low modulus,excellent bio-corrosion resistance,biocompatibility,and antibacterial activity is highly pursued as advanced implant materials.In this work,a new approach to prepare micron porous structures on the surface layer of a grade 2 commercially-pure Ti(TA2)was proposed,which utilized a simple vacuum wetting process of pure Ag on the surface of TA2.The microstructure,corrosion resistance,biocompatibility,mechanical properties,antibacterial ability,and formation mechanism of the asfabricated porous Ti were studied.The results show that the pores(with average pore sizes of 0.5-5μm)are distributed on the surface layer of the TA2 with a depth of~10μm.In particular,a large number of silver nanoparticles(Ag NPs)form which are dispersed on the porous structures.The formation mechanisms of the porous structures and Ag NPs were elucidated,suggesting that the volatilization/sublimation of Ag in TA2 is crucial.The porous Ti possesses excellent bio-corrosion resistance,surface wettability,biocompatibility,antibacterial activity,and a relatively low elastic modulus of 40-55 GPa,which may have a promising future in the field of orthopedic implants.This work also provides a novel idea for the development of advanced porous Ti materials for orthopedic-related basic research and biomedical applications. | Guanpeng Liu Yulong Li Ming Yan Jicai Feng Jian Cao Min Lei Quanwen Liu Xiaowu Hu Wenqin Wang Xuewen Li | 2022 | Journal of Materials Science & Technology2022,,21: | 0 |
| 20 | Promoting Cotton Green Production in Shandong through Accelerating Simplified Cultivation Technique显示文摘At present,the comparative benefits and comparative labor productivity of cotton production are relatively low,and cotton production and industrial development of cotton get seriously frustrated. The fundamental reason is that the quality of cotton production development and the development mode are not suitable for the market demands. In this situation,the cotton production and development must take the road of green development concept as the guidance,and improve the quality and benefits of cotton development. Finally,it came up with the basic idea,technical approach and industrial mode of taking simplified cultivation technique as the support,to promote green and efficient cotton production in Shandong Province. | Guifeng WANG Xuewen WEI Yan WANG Wenquan DONG | 2018 | Asian Agricultural Research2018,10,1: | 0 |