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9篇 您的检索式:作者名="Yongde Ma"
    题名 作者 年代 出处 被引量
1Effect of the chlortetracycline addition method on methane production from the anaerobic digestion of swine wastewater显示文摘Effects of antibiotic residues on methane production in anaerobic digestion are commonly studied using the following two antibiotic addition methods:(1) adding manure from animals that consume a diet containing antibiotics, and(2) adding antibiotic-free animal manure spiked with antibiotics. This study used chlortetracycline(CTC) as a model antibiotic to examine the effects of the antibiotic addition method on methane production in anaerobic digestion under two different swine wastewater concentrations(0.55 and 0.22 mg CTC/g dry manure). The results showed that CTC degradation rate in which manure was directly added at 0.55 mg CTC/g(HSPIKE treatment) was lower than the control values and the rest of the treatment groups. Methane production from the HSPIKEtreatment was reduced(p < 0.05) by 12% during the whole experimental period and 15% during the first 7 days. The treatments had no significant effect on the pH and chemical oxygen demand value of the digesters, and the total nitrogen of the0.55 mg CTC/kg manure collected from mediated swine was significantly higher than the other values. Therefore, different methane production under different antibiotic addition methods might be explained by the microbial activity and the concentrations of antibiotic intermediate products and metabolites. Because the primary entry route of veterinary antibiotics into an anaerobic digester is by contaminated animal manure, the most appropriate method for studying antibiotic residue effects on methane production may be using manure from animals that are given a particular antibiotic, rather than adding the antibiotic directly to the anaerobic digester.Lu Huang Xin Wen Yan Wang Yongde Zou Baohua Ma Xindi Liao Juanboo Liang Yinbao Wu 2014Journal of Environmental Sciences2014,26,10:3
2The anorexic effect of Ex4/Fc through GLP-1 receptor activation in high-fat diet fed mice显示文摘Exendin-4 (Ex4 ) ,肽开始在 Gila 怪物的口水发现了,能通过 GLP-1 受体(GLP-1R ) 激活 incretinhormone 象 glucagon 一样 peptide-1 (GLP-1 ) 的发信号的小径。我们以前报导 Ex4 和鼠标 IgG 重链常数区域(Ex4/Fc ) 的怪物 proteinconsisting 能施加 GLP-1 的生物效果,例如在糖尿病的鼠标的 improvingglycemic 控制和改善表明。这研究的目的是决定是否在在老鼠的 modulating 精力动态平衡的 Ex4/Fc iseffective。我们的结果证明在 vivo,由编码 Ex4/Fc 的 plasmid 的肌内的注射的 Ex4/Fc 的表示在喂的高脂肪的节食(HFD ) 在老鼠由本地 electroporation effectivelydecreased 食物吸入列在后面。另外,减少的精力吸入是从 Ex4/Fc-treated HFD 鼠标然而并非 Fc 的减少的排泄物控制的联系 withthe 鼠标。显著地,显示的 Ex4/Fc-treated HFDmice 显著地降低 triglyceride (TG ) 层次什么时候与控制老鼠相比。有趣地,当 theleptin 层次没被改变时,传播 ghrelin 层次比在建议的 Fc 控制 mice.These 结果的那些在 Ex4/Fc 鼠标是更高的那 Ex4/Fc 能在 excessivenutrition 条件下面在鼠标通过 GLP-1R 改进精力新陈代谢和类脂化合物新陈代谢。Rui Liu Duan Ma Yiming Li Renming Hu Yongde Peng Qinghua Wang 2014Acta Biochimica et Biophysica Sinica2014,46,8:0
3Image Blind Deblurring Using an Adaptive Patch Prior显示文摘Image blind deblurring uses an estimated blur kernel to obtain an optimal restored original image with sharp features from a degraded image with blur and noise artifacts. This method, however, functions on the premise that the kernel is estimated accurately. In this work, we propose an adaptive patch prior for improving the accuracy of kernel estimation. Our proposed prior is based on local patch statistics and can rebuild low-level features,such as edges, corners, and junctions, to guide edge and texture sharpening for blur estimation. Our prior is a nonparametric model, and its adaptive computation relies on internal patch information. Moreover, heuristic filters and external image knowledge are not used in our prior. Our method for the reconstruction of salient step edges in a blurry patch can reduce noise and over-sharpening artifacts. Experiments on two popular datasets and natural images demonstrate that the kernel estimation performance of our method is superior to that of other state-of-the-art methods.Yongde Guo Hongbing Ma 2019Tsinghua Science and Technology2019,24,2:0
4Efficacy of High-efficiency Formula Pesticides for Controlling Sesamia inferens Walker and Ceratovacuna lanigera Zehntner显示文摘[Objectives]This study was conducted to screen high-efficiency formula pesticides and precise and efficient application techniques for the prevention and control of Sesamia inferens Walker and Ceratovacuna lanigera Zehntner.[Methods]Field efficacy trials were conducted using different combinations of 70%directed enhanced thiamethoxam seed treatment dispersible powder and 46%monosultap·Bacillus thuringiensis wettable powder.[Results]70%directed enhanced thiamethoxam ZF 450 g/hm^(2)+46%monosultap·B.thuringiensis WP 2250 g/hm^(2)had good control effects on both S.inferens and C.lanigera,so it was an ideal high-efficiency formula pesticide for controlling sugarcane S.inferens and C.lanigera.From January to May,combining with new plant or perennial root cultivation management,70%directed enhanced thiamethoxam ZF 450 g/hm^(2)can be evenly spread on sugarcane ditches and sugarcane stumps after being well mixed with fertilizers applied per hectare,and covered with soil in a timely manner,and during the peak incubation period of the first and second generation of S.inferens eggs from March to May,46%monosultap·B.thuringiensis WP 2250 g/hm^(2)was sprayed to the leaf surface in the mixture with water 675 kg with an electric backpack or a motorized sprayer.In such a way,the control efficacy on dead heart seedlings could reach over 89.8%,and that on C.lanigera could reach 100%.Meanwhile,it could effectively and concurrently control thrips,and the increases in yield and sugar content could reach 29310 kg/hm^(2)and 5.9 percentage points,respectively.[Conclusions]The promotion and application of the formula pesticide could achieve precise application and control of sugarcane pests,and improvement of sugarcane quality and planting efficiency,and help promote green prevention and control of sugarcane diseases and pests and the sustained high-quality development of the sugar industry.Yongde MA Xiaoyan WANG Yinhu LI Hongli SHAN Rongyue ZHANG Yingkun HUANG 2023Agricultural Biotechnology2023,12,2:0
5Investigation on Outbreak of Sesamia inferens and Smut in Cane-growing Regions of Yunnan Province显示文摘[Objectives]This study was conducted to clarify the outbreak and disaster characteristics of Sesamia inferens Walker and smut in cane-growing regions in the low-latitude plateau of Yunnan Province,where there is continuous high temperature and drought in spring and summer.[Methods]A systematic investigation and analysis was conducted on different varieties in different types of fields in 16 cane-growing regions with outbreak of S.inferens and smut in Yunnan from 2019 to 2021.[Results]The outbreak of S.inferens and smut in cane-growing regions in the low-latitude plateau of Yunnan Province resulted in an average percent of dry hearts in the range of 17.3%-56.3%,and as high as 84.0%in severe cases.70%thiamethoxam seed treatment dispersible powder and clothianidin or thiamethoxam fertilizer granules were ineffective against S.inferens,while 10%monosultap·thiamethoxam or 10%clothianidin·monosultap granules had a significant control efficacy on S.inferens.The average diseased plant rate ranged from 14.8%to 89.7%in susceptible varieties with smut,and was as high as 100%in severe cases.ROC 1,Yuetang 93-159,Yuetang 00-236,and Liucheng 05-136 had strong resistance,with an average diseased plant rate of 0-5.5%and the highest rate of 7.6%.S.inferens and smut both broke out in cane-growing regions with an altitude below 1200 m.It is recommended to pay attention to disease and pest monitoring in cane-growing regions with an altitude below 1200 m,and combine it with the management of new plants and ratoon plants to effectively prevent and control the first and second generation of S.inferens-infested seedlings from March to May.It is also recommended to strengthen the promotion and application of excellent disease-resistant varieties,so as to achieve a reasonable distribution of varieties and fundamentally control the outbreak and epidemic of sugarcane smut.[Conclusions]This study provides a basis for the effective prevention and control of catastrophic S.inferens and smut caused by extreme climate.Yongde MA Xiaoyan WANG Yinhu LI Hongli SHAN Rongyue ZHANG Yingkun HUANG 2023Agricultural Biotechnology2023,12,2:0
6Do alternative stable states exist in large shallow Taihu Lake,China?显示文摘Regime shifts from submersed macrophyte dominance to phytoplankton dominance have been widely reported in small-to medium-sized shallow lakes.However,alternative stable states in large shallow lakes(surface area>500 km^(2))remain unconfirmed.To understand the alternative stable states and the main influencing factors of submersed macrophytes in large lakes,the ecosystem states from monitoring data from 1959 to 2019 in large shallow Taihu Lake(2338 km^(2)in average depth of 2.12 m)in China were examined.Changes in submersed macrophyte coverage(C_(Mac))and phytoplankton chlorophyll a(Chl a)in the time series and their relationships with environmental factors were analyzed.During the field investigation from August 2018 to May 2019,nutrients and Chl a showed obvious heterogeneity across the lake,being generally higher in the western and northern areas and lower in the southeast area,while C_(Mac)was only observed in the eastern areas,e.g.,East Taihu Lake,Xukou Bay,and Gonghu Bay.During the long-term monitoring from 1959 to 2019 in the Central Region,Meiliang Bay,and East Taihu Lake,Chl a increased significantly in the time series.C_(Mac)varied slightly among different subareas,always at low levels(<10%)in the Central Region and Meiliang Bay but at relatively high levels in East Taihu Lake(10%–90%).Frequency distributions of response variables had no multimodality except for C_(Mac)in East Taihu Lake,with two peaks between 15%and 20%and between 55%and 60%.A dual relationship was found between Chl a and total phosphorus(TP)in the areas with and without macrophytes,while C_(Mac)showed no relationship with TP,and submersed macrophytes did not flourish in the Central Region and Meiliang Bay even when TP was at very low levels(≈10 mg/m3).Taihu Lake had similar algal turbidity(TurbAlg)as small-to mediumsized lakes but generally presented with higher values of nonalgal turbidity(TurbNonAlg),as did their contribution to total turbidity as a percentage.This study suggested that large shallow Taihu Lake may have no alternative stable states,but more evidence is needed for East Taihu Lake,which was dominated by macrophytes,as it remains unknown whether hysteresis occurs between the processes of eutrophication and oligotrophication.Unfavorable conditions caused by wind might be the main reason due to the absence of submersed macrophytes in Taihu Lake.These results demonstrate that stricter nutrient control is needed to maintain a healthy state or to recover from a decayed state for large lakes.Yan LI Yu MA Haijun WANG Hongzhu WANG Yongde CUI Shijun BIAN Miao ZHANG Mengmei LIU Yexin YU Marc SCHALLENBERG 2023Journal of Oceanology and Limnology2023,41,3:0
72-3 Lifetime Measurement of the First 7/2^+State in 143Eu Based on Gas-flled Spectroscopy显示文摘The application of Lanthanum Bromide(LaBr3)detectors provides a unique opportunity to measure lifetime of excited states in picosecond-nanosecond region.Reducing the background is of critical importance to get precise results.For some excited states feeding from isomers with lifetime longer than 1μs,it can be achieved by the Spectrometer for Heavy Atom and Nuclear Structure(SHANS)[1].143Eu nuclei were populated via the 123Sb(24Mg,4n)fusion-evaporation reaction.Most of the evaporation residues at ground state or long-lived isomers were transferred to detection terminal after a flight of about 1.4μs in SHANS.In the case of 143Eu,three transitions have been observed(Fig.1).Guo Song Wang Kailong Liu Minliang Zheng Yong Zhou Xiaohong Wang Jianguo Qiang Yunhua Zhang Yuhu Gan Zaiguo Zhang Zhiyuan Ma Long Yang Huabin Yu Lin Ding Bing Jiang Jian Fang Yongde Li Guangshun Zheng Kuankuan 2016IMP & HIRFL Annual Report2016,,1:0
8Electroextraction of neodymium from LiCl-KCl melt using binary liquid Ga-Al cathode显示文摘The electrochemical behaviour of Nd(Ⅲ)ion was investigated on inert W,active Ga and Ga-AI cathodes.It is established that the reduction of Nd(Ⅲ)ion on the inert electrode is a consecutive two-step process while that on the active electrodes is a one-step process.The apparent standard potential of the Nd(Ⅲ)/Nd redox couple at different temperatures was determined by open-circuit chronopotentiometry and semi-differential method,and the relationship between temperature and apparent standard potential was further discussed.The thermodynamic properties of Nd in Ga and Ga-Al electrodes such as activity coefficient and activity were evaluated via intermittent coulomb titration and temperature dependence test,and the effect of temperature on activity coefficient was verified.Finally,Nd was successfully extracted in form of alloy from molten salt by galvanostatic electrolysis,in which the current efficiency of91.7%for the electroextraction indicates that the binary liquid Ga-Al electrode has favorable performance.Li Ding Xuepeng Wang Yongde Yan Valeri Smolenski Wenda Xu Alena Novoselova Yun Xue Fuqiu Ma Xingmei Zhang 2023Journal of Rare Earths2023,41,8:0
9Enhancing the activity of MoS_(2)/SiO_(2)-Al_(2)O_(3) bifunctional catalysts for suspended-bed hydrocracking of heavy oils by doping with Zr atoms显示文摘Developing catalysts with not only hydrogenation activity but also cracking activity is very important for the advancement of suspended-bed hydrocracking technology.Within this respect,MoS_(2)/SiO_(2)-Al_(2)O_(3)bifunctional catalyst is a kind of typical catalysts with both hydrogenation and cracking activity.Herein,a series of Zr-doped SiO_(2)-Al_(2)O_(3)mixed oxides were synthesized by a sol-gel coupled with hydrothermal method.The synthesized mixed oxides were characterized for chemical structures and acidic properties.It is found that doping SiO_(2)-Al_(2)O_(3)with Zr atoms significantly increases the numbers of acidic sites.The Zr-doped SiO_(2)-Al_(2)O_(3)mixed oxides were then combined with dispersed MoS_(2),which was in-situ produced from oil-soluble Mo precursors,to fabricate a novel kind of bifunctional catalysts for suspended-bed hydrocracking of heavy oils.Owing to the significantly increased numbers of acidic sites in Zr-doped SiO_(2)-Al_(2)O_(3)mixed oxides,corresponding bifunctional catalysts demonstrate much enhanced activity for suspended-bed hydrocracking of heavy oils in relative to MoS_(2)/SiO_(2)-Al_(2)O_(3)bifunctional catalysts.Yongde Ma Rengan Liang Wenquan Wu Jiayin Zhang Yanning Cao Kuan Huang Lilong Jiang 2021Chinese Journal of Chemical Engineering2021,34,11:0
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