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23篇 您的检索式:作者名="Baowei Ma"
    题名 作者 年代 出处 被引量
1High CO methanation activity on zirconia-supported molybdenum sulfide catalyst显示文摘In this study, different methods were used to prepare MoO3/ZrO2 catalysts for sulfur resistant methanation reaction. It was found that MoO3/ZrO2 catalyst prepared by one-step co-precipitation method achieved high methanation performance. CO conversion could reach up to90% on 25 wt% MoO3/ZrO2 catalyst, much higher than that on the conventional 25 wt% MoO3/Al2O3 catalyst. The Mo-based catalysts were characterized by XRF, XRD, Raman, BET, TEM and H2-TPR etc. It was found that MoO3 particles were highly dispersed on ZrO2 support for 25 wt% MoO3/ZrO2 catalyst prepared at 65-85℃ because of its relatively larger pore size, which contributed to a high CO conversion.Meanwhile, when MoO3 loading exceeded the monolayer coverage, the formed crystalline MoO3 and ZrMo2O8might block the micropores of the catalyst and make the methanation activity declined. These results are useful for preparing highly efficient catalyst for CO methanation process.Zhenhua Li Ye Tian Jia He Baowei Wang Xinbin Ma 2014Journal of Energy Chemistry2014,23,5:15
2The chromosome-level reference genome assembly for Panax notoginseng and insights into ginsenoside biosynthesis显示文摘Panax notoginseng,a perennial herb of the genus Panax in the family Araliaceae,has played an important role in clinical treatment in China for thousands of years because of its extensive pharmacological effects.Here,we report a high-quality reference genome of P.notoginseng,with a genome size up to 2.66 Gb and a contig N50 of 1.12 Mb,produced with third-generation PacBio sequencing technology.This is the first chromosome-level genome assembly for the genus Panax.Through genome evolution analysis,we explored phylogenetic and whole-genome duplication events and examined their impact on saponin biosynthesis.We performed a detailed transcriptional analysis of P.notoginseng and explored genelevel mechanisms that regulate the formation of characteristic tubercles.Next,we studied the biosynthesis and regulation of saponins at temporal and spatial levels.We combined multi-omics data to identify genes that encode key enzymes in the P.notoginseng terpenoid biosynthetic pathway.Finally,we identified five glycosyltransferase genes whose products catalyzed the formation of different ginsenosides in P.notoginseng.The genetic information obtained in this study provides a resource for further exploration of the growth characteristics,cultivation,breeding,and saponin biosynthesis of P.notoginseng.Zhouqian Jiang Lichan Tu Weifei Yang Yifeng Zhang Tianyuan Hu Baowei Ma Yun Lu Xiuming Cui Jie Gao Xiaoyi Wu Yuru Tong Jiawei Zhou Yadi Song Yuan Liu Nan Liu Luqi Huang Wei Gao 2021Plant Communications2021,2,1:11
3Effect of a promoter on the methanation activity of a Mo-based sulfur-resistant catalyst显示文摘Can LIN Haiyang WANG Zhenhua LI Baowei WANG Xinbin MA Shaodong QIN Qi SUN 2013Frontiers of Chemical Science and Engineering2013,7,1:8
4Effects of pantothenic acid on growth performance,slaughter performance, lipid metabolism, and antioxidant function of Wulong geese aged one to four weeks显示文摘This experiment was conducted to study the effects of pantothenic acid on the growth performance,slaughter performance, lipid metabolism, and antioxidant function of one-to four-week-old Wulong geese and determine the appropriate supplemental level of pantothenic acid. A total of 360 one-day-old Wulong geese were randomly divided into 6 groups with 6 replicates per group and 10 geese(5 males and 5 females) per replicate. The geese in group Ⅰ(control group) were fed a basal diet, and the geese in groups Ⅱ to Ⅵ(experimental groups) were given the basal diet supplemented with 8, 15, 30, 60, and120 mg/kg pantothenic acid, respectively. The experiment lasted for 4 weeks. Based on the results of unrelated comparative analysis, the body weight was the highest when the dietary pantothenic acid level was 27.57 mg/kg. When the dietary pantothenic acid level was 26.17 mg/kg, the average daily gain peaked. When the dietary pantothenic acid level was 15.50 mg/kg, the feed:gain ratio was the lowest.The percentage of abdominal fat in groups Ⅲ and Ⅳ was significantly lower than that in group Ⅰ(P < 0.05). The content of total cholesterol in serum in groups III to Ⅴ was significantly lower than that in group Ⅰ(P < 0.05). The triglyceride content in groups Ⅲ and Ⅳ was significantly lower than that in group Ⅰ(P < 0.01). The high-density lipoprotein—cholesterol content in group Ⅳ was significantly higher than that in group Ⅰ(P < 0.05). The total antioxidant capacity of serum and liver in group Ⅳ was significantly higher than that in group Ⅰ(P < 0.05). The malondialdehyde content in the liver in groups Ⅲ and Ⅳ was significantly lower than that in group Ⅰ(P < 0.05), Glutathione peroxidase activity in the serum in group Ⅳ was significantly higher than that in group Ⅰ(P < 0.05). Glutathione peroxidase activity in the liver in groups Ⅳ and Ⅴ was significantly higher than that in group Ⅰ(P < 0.01). The addition of pantothenic acid in the diet of one-to four-week-old Wulong geese significantly affected the growth performance,slaughter performance, lipid metabolism, and antioxidant function of the geese. In terms of economic benefits, the optimal supplemental level of pantothenic acid in one-to four-week-old geese was15.50 mg/kg.Baowei Wang Xiao Zhang Bin Yue Wenhua Ge Mingai Zhang Chuanxing Ma Min Kong 2016Animal Nutrition2016,,4:5
5Effect of cobalt and its adding sequence on the catalytic performance of MoO_3/Al_2O_3 toward sulfur-resistant methanation显示文摘The effect of promoter cobalt and the sequences of adding cobalt and molybdenum precursors on the performance of sulfur-resistant methanation were investigated. All these samples were prepared by impregnation method and characterized by N2-adsorption, X-ray diffraction(XRD), temperature-programmed reduction(TPR) and laser Raman spectroscopy(LRS). The conversions of CO for Mo-Co/Al, Co-Mo/Al and CoMo/Al catalysts were 59.7%, 54.3% and 53.9%, respectively. Among these catalysts, the Mo-Co/Al catalyst prepared stepwisely by impregnating Mo precursor firstly showed the best catalytic performance. Meanwhile, the conversions of CO were 48.9% for Mo/Al catalyst and 10.5% for Co/Al catalyst. The addition of cobalt species could improve the catalytic activity of Mo/Al catalyst. The N2-adsorption results showed that Co-Mo/Al catalyst had the smallest specific surface area among these catalysts. CoMoO4species in CoMo/Al catalyst were detected with XRD, TPR and LRS. Moreover, crystal MoS2which was reported to be less active than amorphous MoS2was found in both Co-Mo/Al and CoMo/Al catalysts. Mo-Co/Al catalyst showed the best catalytic performance as it had an appropriate surface structure, i.e., no crystal MoS2and very little CoMoO4species.Baowei Wang Yuqin Yao Minhong Jiang Zhenhua Li Xinbin Ma Shaodong Qin Qi Sun 2014Journal of Energy Chemistry2014,23,1:5
6Pd-Fe/a-AI203/cordierite monolithic catalysts for the synthesis of dimethyl oxalate: effects of calcination and structure显示文摘Shengping WANG Xin ZHANG Yujun ZHAO Yadong GE Jing LV Baowei WANG Xinbin MA 2012Frontiers of Chemical Science and Engineering2012,6,3:3
7Enhanced methanation stability of nano-sized MoS2 catalysts by adding Al2O3显示文摘一系列未支持的瞬间 < 潜水艇 class= “ a-plus-plus ” > 2 催化剂与或没有艾尔 < 潜水艇 class= “ a-plus-plus ” > 2 O < 潜水艇 class= “ a-plus-plus ” > 3 修正用一条修改热分解途径被准备。催化剂为一个人有的碳一氧化物和最佳的 methanation 被测试 25.6 wt-% 艾尔 < 潜水艇 class= “ a-plus-plus ” > 2 O < 潜水艇 class= “ a-plus-plus ” > 3 内容。催化剂被氮吸附测量, X 光检查衍射和传播电子显微镜学描绘。结果显示出那增加艾尔的适当数量<潜水艇class=“ a-plus-plus ”> 2 O <潜水艇class=“ a-plus-plus ”> 3 增加瞬间的分散<潜水艇class=“ a-plus-plus ”>在瞬间之间的 2 ,和增加的相互作用力量<潜水艇class=“ a-plus-plus ”> 2 和艾尔<潜水艇class=“ a-plus-plus ”> 2 O <潜水艇class=“ a-plus-plus ”> 3 能禁止活跃瞬间的 sintering <潜水艇class=“ a-plus-plus ”> 2 到某程度。Zhenhua LI Jia HE Haiyang WANG Baowei WANG Xinbin MA 2015Frontiers of Chemical Science and Engineering2015,9,1:2
8Effect of boron addition on the MoO_3/CeO_2–Al_2O_3 catalyst in the sulfur-resistant methanation显示文摘The effect of boron on the performance of MoO_3/CeO_2–Al_2O_3 catalysts, which were prepared with impregnation method, was investigated. The catalysts were characterized with N_2 adsorption–desorption, XRD, H_2-TPR, and NH_3-TPD, and were tested in sulfur-resistant methanation. The results indicated that the MoO_3/CeO_2–Al_2O_3 catalysts modified by boron showed higher catalytic performance in sulfur-resistant methanation. The CO conversion increased from 47% to 62% with 0.5 wt% boron content. When the content of boron was under 0.5 wt%, the results suggested there was an increase in the amorphous form of MoO_3 caused by the generation of weak and intermediate acid sites, which had weakened the interaction between the active components and supports. While, the catalyst added 2.0 wt% boron showed the strong acid sites and the largest crystalline size resulting in the uneven distribution of ceria.Baowei Wang Wenxia Yu Weihan Wang Zhenhua Li Yan Xu Xinbin Ma 2018Chinese Journal of Chemical Engineering2018,26,3:2
9Oxycarbonylation of methanol over modified CuY: Enhanced activity by improving accessibility of active sites显示文摘CuY zeolite is a promising catalyst in the field of manufacturing dimethyl carbonate(DMC) through oxidative carbonylation of methanol. Cu^+ exchanged with Br?nsted acid sites are supposed to be active for this reaction. However, the location of Cu^+ in small cages can not interact with reactants because of steric hindrance, which lead to a waste of Cu species. In this work, NH_4F solution was used to modify the pore structure of zeolite Y by etching the framework T atoms. Physical and chemical adsorption of probe molecules with different size are used to determine the changes of porosity as well as the accessibility of Cu^+ sites. At an optimized etching time, the small cages were opened with maintained zeolitic framework. As a result, more Cu^+ species located in small cages become accessible to reactants, which contributes to the enhanced activity in this reaction.Hexin Zhou Shengping Wang Baowei Wang Xinbin Ma Shouying Huang 2019Chinese Chemical Letters2019,30,3:2
10The role of the distribution of Ce species on MoO 3 /CeO 2 –Al 2 O 3 catalysts in sulfur-resistant methanation显示文摘Minhong Jiang Baowei Wang Yuqin Yao Haiyang Wang Zhenhua Li Xinbin Ma Shaodong Qin Qi Sun 2013Catalysis Communications2013,,:1
11Effect of sulfidation temperature on the catalytic behavior of unsupported MoS 2 catalysts for synthetic natural gas production from syngas显示文摘Zhenhua Li Jia Liu Haiyang Wang Erdong Wang Baowei Wang Xinbin Ma Shaodong Qin Qi Sun 2013Journal of Molecular Catalysis A Chemical2013,,:1
12Effects of CeO2 preparation methods on the catalytic performance of MoO3/CeO2 toward sulfur-resistant methanation显示文摘CeO_2 supports were prepared by calcination or precipitation method and 5% MoO_3/CeO_2 catalysts were prepared by incipient-wetness impregnation method. The catalytic performance of the 5% MoO_3/CeO_2 catalysts toward sulfur-resistant methanation was investigated. The results showed that the Mo/Ce-1 catalysts with CeO_2 support prepared by calcination method exhibited the best sulfur-resistant methanation activity and stability with CO conversion as high as 75% while the Mo/Ce-3 catalysts the poorest. The supports and catalysts were characterized by N_2-adsorption–desorption, temperature-programmed reduction(TPR), X-ray diffraction(XRD), Raman spectroscopy(RS) and scanning electron microscope(SEM). The results indicated that the saturated monolayer loading MoO_3 on Ce-3 support was lower than 5% and there were some crystalline MoO_3 particles on the surface of the Mo/Ce-3. The preparation method of CeO_2 had a big influence on the specific surface area, the crystalline of CeO_2, and the catalytic performance of the corresponding Mo-based catalyst for sulfur-resistant methanation.Dajun Meng Baowei Wang Zhen Liu Weihan Wang Zhenhua Li Xinbin Ma 2017Journal of Energy Chemistry2017,26,3:1
13Im- proved hydrogen storage behaviours of nanocrystalline and amorphous Mg2 Ni - type alloy by Mn substitution for Ni显示文摘Zhang Yanghuan Li Baowei Ma Zhihong 2010Int J Hydrogen Energy2010,35,11:1
14Sulfur-resistant methanation over MoO_3/CeO_2–ZrO_2 catalyst: Influence of Ce-addition methods显示文摘In this paper, Ce_(0.2)Zr_(0.8)O_2 composite supports were prepared by different Ce-addition methods including impregnation of cerium(CeZr-imp), impregnation of citric acid and cerium(CeZr-CA) simultaneously and deposition precipitation method(CeZr-DP), respectively. The as-prepared supports were applied to prepare 10 wt% MoO_3/Ce_(0.2)Zr_(0.8)O_2 catalysts for sulfur-resistant methanation. The N_2 adsorption/desorption,X-ray diffraction(XRD), Raman spectroscopy(RS), X-ray photoelectron(XPS), temperature-programmed reduction by hydrogen(H_2-TPR) were undertaken to get textural properties, morphological information and structures of the catalysts. The results showed that Mo O_3 was highly dispersed on the surface of these three supports and Ce was mostly of coexisted in Ce^(4+)/Ce^(3+) redox pairs. Compared with Mo/CeZrimp, the CO conversion increased by 10% and 15% for Mo/CeZr-CA and Mo/CeZr-DP, respectively. This was mainly attributed to the larger specific surface area, Ce^(3+) concentration and content of active MoS_2 on the surface of catalysts.Zhaopeng Liu Yan Xu Zhenhua Li Baowei Wang Weihan Wang Xinbin Ma Renjie Liu 2019Journal of Energy Chemistry2019,28,1:1
15Effect of Hydrogen on Catalytic Coupling Reaction of Carbon Monoxide to Diethyl Oxalate显示文摘Zhenhua Li Ying Song Pa Du Xinbin Ma Baowei Wang Genhui Xu 2001Reaction Kinetics and Catalysis Letters2001,,1:1
16Optimization of cyclical process for CO coupling regeneration reactions 显示文摘Wang Baowei Ma Xinbin Xu Genhui Mao Lanfang 2000Computers & Chemical Engineering2000,24,27:1
17Chemical synthesis and magnetic properties of nanocrystalline (La0.67?X Gd X )Sr0.33MnO3 using amorphous molecular alloy as precursors显示文摘Prof. Gui Wang Ph D Bing Lu Shiliang Zhang Lun Zhao Guangtao Fei Lide Zhang Yonglin Ma Baowei Li 2007Journal of Wuhan University of Technology - Mater Sci Ed2007,,2:1
18Consistency in responses to conspecific advertisement calls with various signal-to-noise ratios in both sexes of the Anhui tree frog显示文摘Environmental noise has a significant negative impact on acoustic communication in most situations,as it influences the production,transmis-sion,and reception of acoustic signals.However,how animals respond to conspecific sounds when there is interference from environmental noise,and whether males and females display convergent behavioral responses in the face of noise masking remain poorly understood.In this study,we investigated the effects of conspecific male advertisement calls with different signal-to-noise ratios on male-male competition and female choice in the Anhui tree frog Rhacophorus zhoukaiyae using playback and phonotaxis experiments,respectively.The results showed that(1)female Anhui tree frogs preferentially selected the conspecific calls with higher SNR compared to calls with lower SNR;(2)males preferen-tially responded vocally to the conspecific calls with higher SNR compared to calls with lower SNR;and(3)males'competitive strategies were flexible in the face of noise interference.These results suggest that preferences of both sexes converge in outcome,and that male competitive strategies may depend on predictable female preferences.This study will provide an important basis for further research on decision-making in animals.Zhiyue Wang Haohao Ma Cheng Chen Ruolei Sun Kai Liu Baowei Zhang Guangzhan Fang 2023Current Zoology2023,69,6:0
19Phytic acid-derived fabrication of ultra-small MoP nanoparticles for efficient CO methanation: Effects of P/Mo ratios显示文摘Molybdenum phosphide(MoP) catalyst has been widely applied in hydrogenation reactions, while the preparation of unsupported MoP catalysts with ultra-small size and large specific surface area(SBET) is still challenging. Herein, we have provided a facile method for preparing a series of MoP-x(x=P/Mo ratios ranging from 1 to 5) catalysts by pyrolyzing phytic acid(PA)-derived Mo complexes in a H2 atmosphere. The physicochemical properties and the catalytic activity of MoP catalysts were investigated. The results showed that the obtained MoP-5 catalyst had the largest SBETand exhibited ultra-small nanoparticle diameter of 3.6 nm, which ascribed to the chelation of PA and the confinement of deposited products.As the content of PA increased, the synthetic mechanism of MoP was also affected, which led to the difference in the valence of surface Mo species. The characterization results further confirmed that Moδ+ sites in MoP catalysts are active sites for methanation reaction and its content on the surface of MoP-x catalysts determines the catalytic activity.Jun Zhao Zijia Yin Baowei Wang Zhenhua Li Yan Xu Xinbin Ma 2020Journal of Energy Chemistry2020,29,8:0
20Adaptive deep learning for head and neck cancer detection using hyperspectral imaging显示文摘It can be challenging to detect tumor margins during surgery for complete resection.The purpose of this work is to develop a novel learning method that learns the difference between the tumor and benign tissue adaptively for cancer detection on hyperspectral images in an animal model.Specifically,an auto-encoder network is trained based on the wavelength bands on hyperspectral images to extract the deep information to create a pixel-wise prediction of cancerous and benign pixel.According to the output hypothesis of each pixel,the misclassified pixels would be reclassified in the right prediction direction based on their adaptive weights.The auto-encoder network is again trained based on these updated pixels.The learner can adaptively improve the ability to identify the cancer and benign tissue by focusing on the misclassified pixels,and thus can improve the detection performance.The adaptive deep learning method highlighting the tumor region proved to be accurate in detecting the tumor boundary on hyperspectral images and achieved a sensitivity of 92.32%and a specificity of 91.31%in our animal experiments.This adaptive learning method on hyperspectral imaging has the potential to provide a noninvasive tool for tumor detection,especially,for the tumor whose margin is indistinct and irregular.Ling Ma Guolan Lu Dongsheng Wang Xulei Qin Zhuo Georgia Chen Baowei Fei 2019Visual Computing for Industry,Biomedicine,and Art2019,2,1:0
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