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| 1 | Mechanism of the December 2015 Catastrophic Landslide at the Shenzhen Landfill and Controlling Geotechnical Risks of Urbanization显示文摘 | Yueping Yin Bin Li Wenpei Wang Liangtong Zhan Qiang Xue Yang Gao Nan Zhang Hongqi Chen Tiankui Liu Aiguo Li | 2016 | Engineering2016,2,2: | 64 |
| 2 | Agricultural non-point nitrogen pollution control function of dierent vegetation types in riparian wetlands: A case study in the Yellow River wetland in China显示文摘Riparian wetland is the major transition zone of matter, energy and information transfer between aquatic and terrestrial ecosystems and has important functions of water purification and non-point pollution control. Using the field experiment method and an isotope tracing technique, the agricultural non-point nitrogen pollution control function of dierent vegetation types in riparian wetland was studied in the Kouma Section of the Yellow River. The results showed that the retention of agricultural non-point nitrogen pollution by riparian wetland soil occurs mainly in top 0-10 cm layer. The amount of nitrogen retained by surface soils associated with three types of vegetation are 0.045 mg/g for Phragmites communis Trin Linn, 0.036 mg/g for Scirpus triqueter Linn, and 0.032 mg/g for Typha angustifolia Linn, which account for 59.21%, 56.25%, and 56.14% of the total nitrogen interception, respectively. Exogenous nitrogen in 0-10 cm soil layer changes more quickly than in other layers. One month after adding K15NO3 to the tested vegetation, nitrogen content was 77.78% for P. communis Trin, 68.75% for T. angustifolia, and 8.33% for S. triqueter in the surface soil. After three months, nitrogen content was 93.33% for P. communis Trin, 72.22% for S. triqueter, and 37.50% for T. Angustifolia. There are large dierences among vegetation communities respecting to purification of agricultural non-point nitrogen pollution. The nitrogen uptake amount decreases in the sequence: new shoots of P. communis Trin (9.731 mg/g) > old P. communis Trin (4.939 mg/g) > S. triqueter (0.620 mg/g) > T. angustifolia (0.186 mg/g). Observations indicated that the presence of riparian wetlands as buers on and adjacent to stream banks could be recommended to control agricultural non-point pollution. | ZHAO Tongqian XU Huashan HE Yuxiao TAI Chao MENG Hongqi ZENG Fanfu XING Menglin | 2009 | Journal of Environmental Sciences2009,21,7: | 29 |
| 3 | Effect of seawater on incident plane P and SV waves at ocean bottom and engineering characteristics of offshore ground motion records off the coast of southern California, USA显示文摘The effect of seawater on vertical ground motions is studied via a theoretical method and then actual offshore ground motion records are analyzed using a statistical method. A theoretical analysis of the effect of seawater on incident plane P and SV waves at ocean bottom indicate that on one hand, the affected frequency range of vertical ground motions is prominent due to P wave resonance in the water layer if the impedance ratio between the seawater and the underlying medium is large, but it is greatly suppressed if the impedance ratio is small; on the other hand, for the ocean bottom interface model selected herein, vertical ground motions consisting of mostly P waves are more easily affected by seawater than those dominated by SV waves. The statistical analysis of engineering parameters of offshore ground motion records indicate that:(1) Under the infl uence of softer surface soil at the seafl oor, both horizontal and vertical spectral accelerations of offshore motions are exaggerated at long period components, which leads to the peak spectral values moving to a longer period.(2) The spectral ratios(V/H) of offshore ground motions are much smaller than onshore ground motions near the P wave resonant frequencies in the water layer; and as the period becomes larger, the effect of seawater becomes smaller, which leads to a similar V/H at intermediate periods(near 2 s). These results are consistent with the conclusions of Boore and Smith(1999), but the V/H of offshore motion may be smaller than the onshore ground motions at longer periods(more than 5 s). | Diao Hongqi Hu Jinjun Xie Lili | 2014 | Earthquake Engineering and Engineering Vibration2014,13,2: | 24 |
| 4 | Major Technologies for Safe Construction of High Earth-Rockfill Dams显示文摘 | Hongqi Ma Fudong Chi | 2016 | Engineering2016,2,4: | 22 |
| 5 | A Strigolactone Biosynthesis Gene Contributed to the Green Revolution in Rice显示文摘Plant architecture is a complex agronomic trait and a major factor of crop yield,which is affected by several important hormones.Strigolactones(SLs)are identified as a new class hormoneinhibiting branching in many plant species and have been shown to be involved in various developmental processes.Genetical and chemical modulation of the SL pathway is recognized as a promising approach to modify plant architecture.However,whether and how the genes involved in the SL pathway could be utilized in breeding still remain elusive.Here,we demonstrate that a partial loss-of-function allele of the SL biosynthesis gene,HIGH TILLERING AND DWARF 1/DWARF17(HTD1/D17),which encodes CAROTENOID CLEAVAGE DIOXYGENASE 7(CCD7),increases tiller number and improves grain yield in rice.We found that the HTD1 gene had been widely utilized and co-selected with Semidwarf 1(SD1),both contributing to the improvement of plant architecture in modern rice varieties since the Green Revolution in the 1960s.Understanding how phytohormone pathway genes regulate plant architecture and how they have been utilized and selected in breeding will lay the foundation for developing the rational approaches toward improving crop yield. | Yuexing Wang Lianguang Shang Hong Yu Longjun Zeng Jiang Hu Shen Ni Yuchun Rao Sanfeng Li Jinfang Chu Xiangbing Meng Lei Wang Ping Hu Jijun Yan Shujing Kang Minghao Qu Hai Lin Tao Wang Quan Wang Xingming Hu Hongqi Chen Bing Wang Zhenyu Gao Longbiao Guo Dali Zeng Xudong Zhu Guosheng Xiong Jiayang Li Qian Qian | 2020 | Molecular Plant2020,13,6: | 23 |
| 6 | Quantitative evaluation methods for waterflooded layers of conglomerate reservoir based on well logging data显示文摘The rapid changing near source, multi-stream depositional environment of conglomerate reservoirs leads to severe heterogeneity, complex lithology and physical properties, and large changes of oil layer resistivity. Quantitative evaluation of water-flooded layers has become an important but difficult focus for secondary development of oilfields. In this paper, based on the analysis of current problems in quantitative evaluation of water-flooded layers, the Kexia Group conglomerate reservoir of the Sixth District in the Karamay Oilfield was studied. Eight types of conglomerate reservoir lithology were identified effectively by a data mining method combined with the data from sealed coring wells, and then a multi-parameter model for quantitative evaluation of the water-flooded layers of the main oil-bearing lithology was developed. Water production rate, oil saturation and oil productivity index were selected as the characteristic parameters for quantitative evaluation of water-flooded layers of conglomerate reservoirs. Finally, quantitative evaluation criteria and identification rules for water-flooded layers of main oil-bearing lithology formed by integration of the three characteristic parameters of water-flooded layer and undisturbed formation resistivity. This method has been used in evaluation of the water-flooded layers of a conglomerate reservoir in the Karamay Oilfield and achieved good results, improving the interpretation accuracy and compliance rate. It will provide technical support for avoiding perforation of high water-bearing layers and for adjustment of developmental programs. | Tan Fengqi Li Hongqi Xu Changfu Li Qingyuan Peng Shouchang | 2010 | Petroleum Science2010,7,4: | 21 |
| 7 | Technical Progress on Researches for the Safety of High Concrete-Faced Rockfill Dams显示文摘The concrete-faced rockfill dam(CFRD) is an important dam type in the selection of high dams to be constructed in Western China,owing to its direct utilization of local materials,good adaptability,and distinct economic advantages.Over the past decades,China has gained successful experience in the construction of 200 m CFRDs,providing the necessary technical accumulation for the development of 250–300 m ultra-high CFRDs.This paper summarizes these successful experiences and analyzes the problems of a number of major 200 m CFRDs around the world.In addition,it discusses the key technologies and latest research progress regarding safety in the construction of 250–300 m ultra-high CFRDs,and suggests focuses and general ideas for future research. | Hongqi Ma Fudong Chi | 2016 | Engineering2016,2,3: | 19 |
| 8 | Ubiquitination of Rheb governs growth factor-induced mTORC1 activation显示文摘Mechanistic target of rapamycin mTOR complex 1 (mTORC1)plays a key role in the integration of various environmental signals to regulate cell growth and metabolism,mTORC1 is recruited to the lysosome where it is activated by its interaction with GTP-bound Rheb GTPase.However,the regulatory mechanism of Rheb activity remains largely unknown.Here,we show that ubiquitination governs the nucleotide-bound status of Rheb.Lysosome-anchored E3 ligase RNF152 catalyzes Rheb ubiquitination and promotes its binding to the TSC complex.EGF enhances the deubiquitination of Rheb through AKT-dependent USP4 phosphorylation,leading to the release of Rheb from the TSC complex.Functionally,ubiquitination of Rheb is linked to mTORC1-mediated signaling and consequently regulates tumor growth.Thus,we propose a mechanistic model whereby Rheb-mediated mTORC1 activation is dictated by a dynamic opposing act between Rheb ubiquitination and deubiquitination that are catalyzed by RNF152 and USP4 respectively. | Lu Deng Lei Chen Linlin Zhao Yan Xu Xiaoping Peng Xinbo Wang Lin Ding Jiali Jin Hongqi Teng Yanming Wang Weijuan Pan Fei Yu Lujian Liao Li Li Xin Ge Ping Wang | 2019 | Cell Research2019,29,2: | 16 |
| 9 | A survey of executive compensation contracts in China's listed companies显示文摘We analyze 228 executive compensation contracts voluntarily disclosed by Chinese listed firms and find that central-government-controlled companies disclose more information in executive compensation contracts than localgovernment-controlled and non-government-controlled companies. Cashbased payments are the main form of executive compensation, whereas equity-based payments are seldom used by Chinese listed companies. On average, there are no significant differences in the value of basic salaries and performance-based compensation in executive compensation contracts.But, compared with their counterparts in non-government-controlled companies, executives in government-controlled companies are given more incentive compensation. Accounting earnings are typically used in executive compensation contracts, with few firms using stock returns to evaluate their executives. However, the use of non-financial measures has increased significantly since 2007. | Yubo Lia Fang Lou Jiwei Wang Hongqi Yuan | 2013 | China Journal of Accounting Research2013,,3: | 15 |
| 10 | Time-frequency analysis and detecting method research on milling force token signal in spindle current signal显示文摘The vast majority of tool condition monitoring systems use the motor current instead of the cutting force as the predictor signal. The measured motor current signal is time-dependant and instable. It is difficult to detect the cutting force token signal from such motor current signal. This paper presents a method that uses the wavelet transforms to reconstruct the cutting force token signal from the current signal based on the time frequency analysis of the cutting force signal. The result of the cutting force measurement experiment shows that the proposed reconstruct method could be used to analyze the spindle current and monitor the time-varying cutting force. | MAO XinYong LIU HongQi LI Bin | 2009 | Science China(Technological Sciences)2009,52,10: | 11 |
| 11 | High precision topographic data on Lop Nor basin's Lake 'Great Ear' ? and the timing of its becoming a dry salt lake显示文摘High precision elevation measurements using DGPS were carried out along three representative tran- sects for the 'Great Ear' area, a dry salt lake within the Lop Nor basin. Results indicate that the Lop Nor basin is only 5.2 m deep and its lowest point occurs at the center of the 'Great Ear'. In addition, the basin is asymmetric - steeper in the southwest (0.19‰) and gentler in the northeast (0.09‰). Points along the same 'Great Ear' ring were found to have an identical elevation value, but different when from different ones (lower towards the center). The spacing of the 'Great Ear' rings was found to be closely related with the surface steepness. The closer the 'Great Ear' rings are spaced, the steeper the ground surface, and vice versa. These findings support the argument that the 'Great Ear' rings are the former shoreline trails left behind by Lop Nor water during the last few episodes of recession towards its total dry up. A comprehensive analysis of the high precision elevation data, historical accounts, aerial and satellite photographs and imagery, and official topographic maps of the study area suggests that the 'Great Ear' area in the Lop Nor basin was incorrectly mapped as being covered by a great body of water on the 1963 topographic maps. A re-interpretation of the 1958 aerial photographs and newer remote sensing imagery indicated that the 'Great Ear' ring structure was already in place in 1958 and it continued to appear on the subsequent remote sensing data without any major changes. It is estimated that lake water in the 'Great Ear' area of the Lop Nor basin disappeared between the late 1930s and early 1940s. | LI BaoGuo MA LiChun JIANG PingAn DUAN ZengQiang SUN DanFeng QIU HongLie ZHONG JunPing WU HongQi | 2008 | Chinese Science Bulletin2008,53,6: | 11 |
| 12 | Exosome-encapsulated miR-505 from ox-LDL-treated vascular endothelial cells aggravates atherosclerosis by inducing NET formation显示文摘Neutrophil extracellular traps(NETs)play an important role in the pathological process of atherosclerosis(AS).This study aims to evaluate whether exosomes from oxidized low-density lipoprotein(ox-LDL)-treated vascular endothelial cells(VECs)aggravate AS by inducing NET formation.Exosomes from the peripheral blood of healthy donors and AS patients(namely NC-EXO and AS-EXO,respectively)and exosomes from human umbilical vein endothelial cells(HUVECs)treated without or with ox-LDL(namely normal EXO and ox-LDL-EXO,respectively)were isolated,identified,and co-cultured with neutrophils from peripheral blood of healthy donors.NET formation was evaluated by immunofluorescence staining and determining the content of cell-free DNA and myeloperoxidase-DNA complex.Dual-luciferase reporter assay,chromatin immunoprecipitation assay,quantitative reverse transcription polymerase chain reaction,and western blot analysis were performed to explore the underlying mechanisms.We found that AS-EXO and ox-LDLEXO in duced NET release from n eutrophils.Meeh a nistically,ox-LDL treatment in HUVECs might activate the NF-κB pathway,which transcriptionally activates miR-505,and then the exosome-encapsulated high miR-505 expression targeted and inhibited SIRT3 in neutrophils,thereby inducing reactive oxygen species(ROS)level increase and NET release by neutrophils.Further in vivo experiments showed that ox-LDLEXO accelerated AS progression in AS mice.In summary,exosome-encapsulated miR-505 from ox-LDLtreated VECs aggravates AS by inducing NET formation. | Li Chen Liqun Hu Qing Li Jian Ma Hongqi Li | 2019 | Acta Biochimica et Biophysica Sinica2019,51,12: | 11 |
| 13 | Synthesis and characterization of PMMA/Al_2O_3 composite particles by in situ emulsion polymerization显示文摘In order to improve its dispersibility,superfine alumina(Al2O3) was encapsulated with poly(methyl methacrylate)(PMMA) by in situ emulsion polymerization.It was found that only when the concentration of sodium dodecyl sulfate(SDS) was much higher than its critical micelle concen-tration,could PMMA/Al2O3 composite particles with high percentage of grafting(PG) be prepared.The same results were obtained between the experimental and stoichiometric amounts of tris(dodecylbenzenesulfonate) isopropoxide(NDZ),indicating that single-molecule-layer adsorption had taken place between NDZ and Al2O3.Analysis using FTIR,TEM and XPS showed that PMMA/Al2O3 composite particles with core-shell structure had been successfully synthesized by in situ emulsion polymerization.Compared to Al2O3,thermal stability and dispersibility of the composite particles showed marked improvement. | Hui Liu Hongqi Ye Tianquan Lin Tao Zhou | 2008 | Particuology2008,6,3: | 9 |
| 14 | Mesenchymal stem cell-derived exosomal miR-21a-5p promotes M2 macrophage polarization and reduces macrophage infiltration to attenuate atherosclerosis显示文摘Atherosclerosis(AS)is the main pathological basis for ischemic cardiovascular and cerebrovascular diseases.Mesenchymal stem cell(MSC)-derived exosomes have the potential to alleviate AS,while the underlying mechanism remains unclear.Here,we aimed to investigate the mechanism of MSC-derived exosomes in AS.The AS mouse model was prepared by feeding ApoE–/–mice with high-fat diet.AS mice were administered with MSC-derived exosomes,and the atherosclerotic plaque area was analyzed by Oil Red O staining.Mouse RAW264.7 macrophages were incubated with MSC-derived exosomes.The macrophage infiltration,macrophage proportion,and cell migration were estimated by immunohistochemistry,flow cytometry,or Transwell assay.The relationship between miR-21a-5p and kruppel-like factor 6(KLF6)or extracellular signal-regulated protein kinases 2(ERK2)was verified by luciferase reporter assay.We found that MSC-derived exosomes promoted M2 polarization of macrophages and reduced plaque area and macrophage infiltration in AS mice.miR-21a-5p overexpression caused an increase of M2 macrophages in RAW264.7 cells and led to a decrease in migration of RAW264.7 cells.Moreover,both KLF6 and ERK2 are the targets of miR-21a-5p.MSC-derived exosomes containing miR-21a-5p promoted M2 polarization of RAW264.7 cells by suppressing KLF6 expression.MSC-derived exosomes containing miR-21a-5p inhibited migration of RAW264.7 cells through inhibiting the ERK1/2 signaling pathway.In conclusion,MSC-derived exosomes containing miR-21a-5p promote macrophage polarization and reduce macrophage infiltration by targeting KLF6 and ERK1/2 signaling pathways,thereby attenuating the development of AS.Thus,MSC-derived exosomes may be a promising treatment for AS. | Jian Ma Li Chen Xiang Zhu Qing Li Liqun Hu Hongqi Li | 2021 | Acta Biochimica et Biophysica Sinica2021,53,9: | 7 |
| 15 | The construction of the generalized continuously variable two-mode entangled state and its application显示文摘The generalized continuous variable two-mode entangled state |〉 is proposed by using the tech-nique of integration within an ordered product (IWOP) of operators. The characteristics of this new entangled representation and its application in quantum teleportation are analyzed in detail. These results indicate that such real parameters |〉 indeed make up a new entangled representation owing to its completeness and orthogonal relation. By employing the |〉 as quantum transmission channel,the teleportation of any single-mode quantum state |ψ〉 3 can be realized by a unitary transformation. | LI HongQi XU ShiMin XU XingLei WANG JiSuo | 2009 | Science China(Physics,Mechanics & Astronomy)2009,52,12: | 7 |
| 16 | Inversion of Array Induction Logs and Its Application显示文摘With the help of the modified geometrical factor theory, the Marquardt method was used to calculate the true electrical parameters of the formation from array induction logs. The inversion results derived from the assumed model and some practical cases show that the rebuilt formation profile determined by 2-ft resolution array induction logs is reasonable when the formation thickness is greater than 1 m, which thus indicates that the inversion method is reliable and can provide quantitative information for the discrimination of oil/gas or water zone. | Gao Jie Zhao Aibin Peng Fei Li Hongqi | 2007 | Petroleum Science2007,4,3: | 7 |
| 17 | 民用建筑电气设计中的节能措施显示文摘 | 吴宏岐 Wu Hongqi | 2001 | 中国能源2001,23,4: | 6 |
| 18 | Axonal remodeling of the corticospinal tract during neurological recovery after stroke显示文摘Stroke remains the leading cause of long-term disability.Hemiparesis is one of the most common post-stroke motor deficits and is largely attributed to loss or disruption of the motor signals from the affected motor cortex.As the only direct descending motor pathway,the corticospinal tract(CST)is the primary pathway to innervate spinal motor neurons,and thus,forms the neuroanatomical basis to control the peripheral muscles for voluntary movements.Here,we review evidence from both experimental animals and stroke patients,regarding CST axonal damage,functional contribution of CST axonal integrity and remodeling to neurological recovery,and therapeutic approaches aimed to enhance CST axonal remodeling after stroke.The new insights gleaned from preclinical and clinical studies may encourage the development of more rational therapeutics with a strategy targeted to promote axonal rewiring for corticospinal innervation,which will significantly impact the current clinical needs of subacute and chronic stroke treatment. | Zhongwu Liu Hongqi Xin Michael Chopp | 2021 | Neural Regeneration Research2021,16,5: | 6 |
| 19 | Progress in Space Solar Telescope显示文摘In this paper we will summarize the progress in the development of the Chinese Space Solar Telescope (SST) during the past few years. The main scientific objective of SST is to observe the fundamental structure of solar magnetic field with its 1-m optical telescope. The success of 1-m Swedish Solar Telescope and Hinode underscores the importance of this 1-m space telescope. In addition, some key technical problems have been solved. | DENG YuanYong ZHANG HongQi | 2009 | Science China(Physics,Mechanics & Astronomy)2009,52,11: | 5 |
| 20 | Micro-geological causes and macro-geological controlling factors of low-resistivity oil layers in the Puao Oilfield显示文摘Low-resistivity oil layers are often missed in logging interpretation because of their resistivity close to or below the resistivity of nearby water layers.Typical low-resistivity oil layers have been found in the past few years in the Putaohua reservoir of the Puao Oilfield in the south of the Daqing placanticline by detailed exploration.Based on a study of micro-geological causes of low-resistivity oil layers,the macro-geological controlling factors were analyzed through comprehensive research of regional depositional background,geological structure,and oil-water relations combined with core,water testing,well logging,and scanning electron microscopy data.The results showed that the formation and distribution of Putaohua low-resistivity oil layers in the Puao Oilfield were controlled by depositional environment,sedimentary facies,diagenesis,motive power of hydrocarbon accumulation,and acidity and alkalinity of reservoir liquid.The low-resistivity oil layers caused by high bound-water saturation were controlled by deposition and diagenesis,those caused by high free-water saturation were controlled by structural amplitude and motive power of hydrocarbon accumulation.Those caused by formation water with high salinity were controlled by the ancient saline water depositional environment and faulted structure and those caused by additional conductivity of shale were controlled by paleoclimate and acidity and alkalinity of reservoir liquid.Consideration of both micro-geological causes and macro-geological controlling factors is important in identifying low-resistivity oil layers. | Tan Fengqi Li Hongqi Liu Hongtao Jiang Fucong Yu Hongyan | 2009 | Petroleum Science2009,6,3: | 5 |