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36篇 您的检索式:作者名="MA Hongguang"
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1Effect of subsoil tillage depth on nutrient accumulation, root distribution, and grain yield in spring maize显示文摘A four-year field experiment was conducted to investigate the effect of subsoiling depth on root morphology, nitrogen(N), phosphorus(P), and potassium(K) uptake, and grain yield of spring maize. The results indicated that subsoil tillage promoted root development,increased nutrient accumulation, and increased yield. Compared with conventional soil management(CK), root length, root surface area, and root dry weight at 0–80 cm soil depth under subsoil tillage to 30 cm(T1) and subsoil tillage to 50 cm(T2) were significantly increased, especially the proportions of roots in deeper soil. Root length, surface area, and dry weight differed significantly among three treatments in the order of T2 > T1 > CK at the12-leaf and early filling stages. The range of variation of root diameter in different soil layers in T2 treatment was the smallest, suggesting that roots were more likely to grow downwards with deeper subsoil tillage in soil. The accumulation of N, P, and K in subsoil tillage treatment was significantly increased, but the proportions of kernel and straw were different. In a comparison of T1 with T2, the grain accumulated more N and P, while K accumulation in kernel and straw varied in different years. Grain yield and biomass were increased by 12.8% and 14.6% on average in subsoil tillage treatments compared to conventional soil treatment. Although no significant differences between different subsoil tillage depths were observed for nutrient accumulation and grain yield, lodging resistance of plants was significantly improved in subsoil tillage to 50 cm, a characteristic that favors a high and stable yield under extreme environments.Hongguang Cai Wei Ma Xiuzhi Zhang Jieqing Ping Xiaogong Yan Jianzhao Liu Jingchao Yuan Lichun Wang Jun Ren 2014The Crop Journal2014,2,5:42
2Dark matter direct search sensitivity of the PandaX-4T experiment显示文摘The Panda X-4T experiment, a 4-ton scale dark matter direct detection experiment, is being planned at the China Jinping Underground Laboratory. In this paper we present a simulation study of the expected background in this experiment. In a 2.8-ton fiducial mass and the signal region between 1-10 keV electron equivalent energy, the total electron recoil background is found to be 4.9 × 10^(-5) kg^(-1) d^(-1) keV^(-1). The nuclear recoil background in the same region is 2.8 × 10^(-7) kg^(-1) d^(-1) keV^(-1). With an exposure of 5.6 ton-years, the sensitivity of Panda X-4 T could reach a minimum spin-independent dark matter-nucleon cross section of 6 × 10^(-48) cm^2 at a dark matter mass of 40 Ge V/c^2.HongGuang Zhang Abdusalam Abdukerim Wei Chen Xun Chen YunHua Chen XiangYi Cui BinBin Dong DeQing Fang ChangBo Fu Karl Giboni Franco Giuliani LinHui Gu XuYuan Guo ZhiFan Guo Ke Han ChangDa He ShengMing He Di Huang XingTao Huang Zhou Huang Peng Ji XiangDong Ji YongLin Ju ShaoLi Li Yao Li Heng Lin HuaXuan Liu JiangLai Liu YuGang Ma YaJun Mao KaiXiang Ni JinHua Ning XiangXiang Ren Fang Shi AnDi Tan AnQing Wang Cheng Wang HongWei Wang Meng Wang QiuHong Wang SiGuang Wang XiuLi Wang XuMing Wang Zhou Wang MengMeng Wu ShiYong Wu JingKai Xia MengJiao Xiao PengWei Xie BinBin Yan JiJun Yang Yong Yang ChunXu Yu JuMin Yuan JianFeng Yue Dan Zhang Tao Zhang Li Zhao QiBin Zheng JiFang Zhou Ning Zhou XiaoPeng Zhou 2019Science China(Physics,Mechanics & Astronomy)2019,62,3:6
3Non-harmonious deformation controlling of gob-side entry in thin coal seam under dynamic pressure显示文摘The behavior of gob-side entry under dynamic pressure is totally different from the one driven after the movement of overlying strata above the adjacent coalface goaf.The gob-side entry will experience severe roof lateral structural adjustments caused by adjacent coalface mining.Thus the deformation and failure characteristics of narrow coal pillar along the gob should be carefully considered.On the basis of the data of the gob-side entry obtained in a thin coal seam under dynamic pressure,the measures to reinforce the narrow coal pillar are put forward.In addition,the non-harmonious controlling of the rock structures and non-equilibrium gob-side entry deformation is proposed to avoid potential failure.Field practices show that the supporting problems of the gob-side entry under dynamic pressure can be well addressed,which could be used in other similar mining cases.Kegong Fan Hongguang Liang Chishuai Ma Chuanwei Zang 2014Journal of Rock Mechanics and Geotechnical Engineering2014,6,3:5
4New Insights into the Depositional Environments of Ordovician Carbonate Formations in the Yubei Area of Tarim Basin Based on Standard Microfacies Types显示文摘Objective The Yubei area is located in the mid-east Maigaiti slope of southwestern Tarim Basin,China,with an exploration history of several years.Recent exploration has preliminarily indicated that the Ordovician carbonate formations in this area have some oil and gas potential.Carbonate microfacies provides material basis for reservoir development,seal formation andHUANG Chenjun LIU Geyun MA Yongsheng LIU Bo LIU Hongguang SHI Kaibo 2017Acta Geologica Sinica(English Edition)2017,91,2:5
5Lichtenstein inguinal hernia repairs with porcine small intestine submucosa: a 5- year follow-up. a prospective randomized controlled study显示文摘Porcine small intestine submucosa(SIS)biologic patch has been used in inguinal hernia repair.However,there are lttle data available to assess the long-term effect after repair.This study aimed to explore the long-term effect of SIS patch in open inguinal hernia repair.Sevent-six patients with unilateral inguinal hernia were treated with Lichtenstein tension-free hernia repair using SIS patch(Beijing Datsing Bio-Tech Co,Ltd.)and Surgisis patch(COOK,USA)in Tianjn Union Medical Center and China-Japan Friendship Hospital.In the trial,the long-term efficacy of the treatment group and the control group were compared.A total of 66 patients in both groups received long-term follow-up(>5years)after surgery,with a followup rate of 86.8%.During the follow-up period,there was one case of recurrence,one case of chronic pain in the control group.There was no statistically significant difference(P>0.05)in terms of recurrence,chronic pain,foreign body sensation and infection between the two groups of patients.After long-term observations,it has been found that the porcine small intestinal submucosa(SIS)biological patch is safe and effective for inguinal hernia Lichtenstein repair,and has a low recurrence rate and complication rate.Baoshan Li Xin Zhang Yi Man Jiadong Xie Wei Hu Huang Huang Yinlong Wang Hongguang Ma 2021Regenerative Biomaterials2021,8,1:5
6Measurement and analysis of biogas fertilizer use efficiency, nutrient distribution and influencing factors of biogas residues and slurry on pig farms显示文摘Although the effects of biogas residues and slurry returning to farmland are good,they still cannot be used widely in China.In this study,the biogas fertilizer use efficiency,nutrient distribution and influencing factors of fertilizer use efficiency of biogas residues and slurry in 20 biogas projects in Chongming County,Shanghai,China were measured and analyzed.The correlation and a linear regression fit of parts of test indicators were also analyzed.The results show that pig farm biogas residues and slurry mixture are nutrient-rich and can be used as a high-quality organic fertilizer,while its fertilizer use efficiency is unstable because of the differences among area,raw materials,fermentation technology and operation management.Nutrients are not evenly distributed in biogas residues and slurry.Higher levels of organic matters,P and trace elements were detected in biogas residues and higher levels of water-soluble N and K were detected in biogas slurry.The correlations between some test indicators of biogas residues and slurry mixture are significant,especially between total K and conductivity.Linear regression model fitting results of parts of test indicators are satisfactory.Hence,the values of the other test indicators can be estimated by one known indicator which can effectively reduce the determination workload under some limited situations.Fan Min Zhu Hongguang Ma Jieqiong 2014International Journal of Agricultural and Biological Engineering2014,7,1:5
7Distribution of heavy metals in pig farm biogas residues and the safety and feasibility assessment of biogas fertilizer显示文摘The presence of high levels of heavy metals in anaerobic fermentation residues is a major obstacle to the resource utilization and urgent research for removal of heavy metals in the biogas slurry is needed.The handling of large-scale residue slurry and safely returning to field urgently needed constructive suggestion.The contents of heavy metal elements in the residue of anaerobic digestion processes of the wastewater and waste of the piggery were mainly investigated.The contents of heavy metals in the original fluid and the centrifugal solution were determined in this study.They included elements,such as Cu,Zn,Cr,Cd,Pb,As,Ni,Mn,and Se,which were compared with the existing standard including the irrigation water quality standards(GB5084-2005),comprehensive discharge standard of sewage(GB8978-1996)and water-solubility humic acid fertilizer quality standards(NY1106-2010).The preliminary data suggested that both the heavy metals before and after centrifugation were in excess of the standards to some degree and the exceeding standard rate declined significantly after centrifugation.The absolute contents of heavy metals after centrifugation declined significantly compared with that before centrifugation.Those ratios are 91.8%,73.2%,47.6%,94.5%,93.5%,59.4%,95.8%,100%for Zn,As,Cd,Cr,Cu,Ni,Mn,Pb,respectively.A descriptive statistics as well as a correlational analysis showed that there existed strong correlation among Cu,Pb,and the total suspended solids(TS).Meanwhile,significant correlation was found among TS,Cd,Zn,As,Cr,Ni,and Mn at 0.01 level.The data and the analysis above provided the theoretical and experimental support for the removal of heavy mental mainly characterized by the removal of TS.According to the comparison between contents of heavy mental conversed from large amount nutrients and corresponding standard(NY1110-2006),only as was found beyond standard.It was feasible to apply biogas residues after centrifugation as water-solubility fertilizer due to the fact that As had low accumulation efficiency in soil and plants.Ma Jieqiong Zhu Hongguang Fan Min 2013International Journal of Agricultural and Biological Engineering2013,6,4:4
8Monte-Carlo simulation of pinhole collimator of a small field of view gamma camera for small animal imaging显示文摘Needs in scintimammography applications,especially for small animal cardiac imaging,lead to develop a small field of view,high spatial resolution gamma camera with a pinhole collimator.However the ideal pinhole collimator must keep a compromise between spatial resolution and sensitivity.In order to design a pinhole collimator with an optimized sensitivity and spatial resolution,the spatial resolution and the geometric sensitivity response as a function of the source to collimator distance has been obtained by means of Monte-Carlo simulation for a small field of view gamma camera with a pinhole collimator of various-hole diameters.The results show that the camera with pinhole of 1 mm,1.5 mm and 2 mm diameter has respectively spatial resolution of 1.5 mm,2.25 mm and 3 mm and geometric sensitivity of 0.016%,0.022%and 0.036%,while the source to collimator distance is 3 cm.We chose the pinhole collimator with hole diameter size of 1.2 mm for our the gamma camera designed based on the trade-off between sensitivity and resolution.ZHU Jie MA Wenyan ZHU Yufeng MA Hongguang WU Yuelei HU Huasi ZHANG Boping HUO Yonggang LIU Silu JIAN Bin WANG Zhaomin 2009Nuclear Science and Techniques2009,20,1:4
9Burden of Mental and Substance Use Disorders-China, 1990−2019显示文摘Summary What is already known about this topic?Mental and substance use disorders have notable contributions to the disease burden in China.What is added by this report?In China,mental disorders and substance use disorders accounted for 20.29 million and 5.76 million disability-adjusted life years(DALYs)in 2019,respectively;depressive disorders were the leading cause of DALYs.For mental disorders,the numbers of DALYs increased 12.06%from 2000 to 2019 while the standardized rates declined 5.24%;for substance use disorders,both the numbers and standardized rates of DALYs decreased 8.52%and 18.52%,respectively.Chao Ma Shicheng Yu Yueqin Huang Zhaorui Liu Qiqi Wang Hongguang Chen Tingting Zhang Maigeng Zhou 2020China CDC weekly2020,2,41:3
10Coupled Cross-correlation Neural Network Algorithm for Principal Singular Triplet Extraction of a Cross-covariance Matrix显示文摘This paper proposes a novel coupled neural network learning algorithm to extract the principal singular triplet(PST)of a cross-correlation matrix between two high-dimensional data streams. We firstly introduce a novel information criterion(NIC),in which the stationary points are singular triplet of the crosscorrelation matrix. Then, based on Newton's method, we obtain a coupled system of ordinary differential equations(ODEs) from the NIC. The ODEs have the same equilibria as the gradient of NIC, however, only the first PST of the system is stable(which is also the desired solution), and all others are(unstable)saddle points. Based on the system, we finally obtain a fast and stable algorithm for PST extraction. The proposed algorithm can solve the speed-stability problem that plagues most noncoupled learning rules. Moreover, the proposed algorithm can also be used to extract multiple PSTs effectively by using sequential method.Xiaowei Feng Xiangyu Kong Hongguang Ma 2016IEEE/CAA Journal of Automatica Sinica2016,3,2:2
11Development of a compact high resolution gamma-ray detector for E-CT applications显示文摘A compact gamma-ray detector with good spatial resolution for emission computed tomography (E-CT) applications has been developed. The detector is composed of NaI(Tl) scintillation pixels array and Hamamastu R2486-05 PSPMT. Having a pixel size of 2 mm × 2 mm and an overall dimension of 48.2 mm × 48.2mm × 5 mm, it has 484 pixels in a 22×22 matrix. An average spatial resolution of 2.5mm (FWHM) was achieved. The slope of position linearity is constant within 10% in a range of 40mm. After corrections, the average value of differential non-linearity and absolute non-linearity were 0.16mm and 0.535mm respectively, and a 17% at FWHM of total energy resolution for 241Am was obtained.ZHU Jie MA Hongguang MA Wenyan ZENG Hui WANG Zhaomin XU Zizhong 2007Nuclear Science and Techniques2007,18,5:2
12Ketamine Inhibits Lung Fluid Clearance through Reducing Alveolar Sodium Transport显示文摘Yong Cui Hongguang Nie Hong Ma Lei Chen Lin Zhang Junke Wang Honglong Ji Daniel T. Monaghan 2011Journal of Biomedicine and Biotechnology2011,,:1
13A novel blind source separation method for single channel signal显示文摘MA HONGGUANG J1ANG QINBO LIU ZHIQIANG 0,,90:1
14Numerical study of the effect of confining stress on rock fragmentation by TBM cutters显示文摘Hongsu Ma Lijun Yin Hongguang Ji 2011International Journal of Rock Mechanics and Mining Sciences2011,,6:1
15Improving accuracy of the vehicle attitude estimation for low-cost INS/GPS integration aided by the GPS-measured course angle显示文摘WU Zongwei YAO Minli MA Hongguang 2013IEEE Transactions on Intelligent Transportation Systems2013,14,2:1
16Syn- thesis of 4- thioquinazoline compounds in aqueous media catalyzed by indium 显示文摘Liu Gang Ma Wenquan Chen Hongguang 2013Asian Journal of Chemistry2013,25,17:1
17A novel blind sourceseparationmethod for single-channel signal 显示文摘Ma Hongguang Jiang Qinbo Liu Zhiqiang 2010Signal Processing2010,90,12:1
18A compact gamma camera with scintillation array and parallel-hole collimator显示文摘A new compact gamma camera for small object imaging has been developed.It consists of a pixelized Nal(T1) scintillator array coupled to a position sensitive photomultiplier tube (Hamamatsu R2486) with a parallel-hole lead collimator.The compact camera has better spatial resolution than Anger camera.The average value of intrinsic spatial resolutions is 2.3 mm (FWHM).The overall spatial resolution (FWHM) is 3,5 and 6 mm at 0,2.5 and 3 mm SCD (source-to-collimator distance),respectively.The phantom studies with the compact camera have demonstrated that parallel-hole collimator gamma camera is a practical technique for nuclear medicine application.ZHU Jie MA Hongguang MA Wenyan ZENG Hui WANG Zhaomin XU Zizhong 2008Nuclear Science and Techniques2008,19,5:1
19An improved fuzz y approach to planning and scheduling problems in hybrid dis tributed MES显示文摘Liu Xiaobing Bo Hongguang Ma Yue 2006Lecture Notes in Computer Science2006,4223,:1
20An improved fuzzy approach to planning and scheduling problems in hybrid distributed MES显示文摘LIU Xiaohing BO Hongguang MA Yue 0,,:1
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