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| 1 | Phosphorus recovery from wastewater by struvite crystallization:Property of aggregates显示文摘Struvite crystallization is a promising method to remove and recover phosphorus from wastewater to ease both the scarcity of phosphorus rock resources and water eutrophication worldwide. To date, although various kinds of reactor systems have been developed, supporting methods are required to control the struvite fines flushing out of the reactors. As an intrinsic property, aggregation is normally disregarded in the struvite crystallization process, although it is the key factor in final particle size and therefore guarantees phosphorus recovery efficiency. The present study developed a method to analyze the characteristics of struvite aggregates using fractal geometry, and the influence of operational parameters on struvite aggregation was evaluated. Due to its typical orthorhombic molecular structure, struvite particles are prone to crystallize into needle or rod shapes, and aggregate at the corners or edges of crystals. The determined fractal dimension(Dpf) of struvite aggregates was 1.52–1.31, with the corresponding range of equivalent diameter(d0.5) at 295.9–85.4 μm. Aggregates formed in relatively low phosphorus concentrations(3.0–5.0 mmol/L) and mildly alkaline conditions(pH 9.0–9.5) displayed relatively compact structures, large aggregate sizes and high aggregation strength. Increasing pH values led to continuous decrease of aggregate sizes, while the variation of Dpfwas insignificant. As to the aggregate evolution, fast growth in a short time followed by a long steady stage was observed. | Zhilong Ye Yin Shen Xin Ye Zhaoji Zhang Shaohua Chen Jianwen Shi | 2014 | Journal of Environmental Sciences2014,26,5: | 16 |
| 2 | ^(15)N isotope fractionation in an aquatic food chain:Bellamya aeruginosa(Reeve) as an algal control agent显示文摘15N isotope tracer techniques and ecological modeling were adopted to investigate the fractionation of nitrogen,its uptake and transformation in algae and snail(Bellamya aeruginosa Reeve).Different algal species were found to differ in their uptake of nitrogen isotopes.Microcystis aeruginisa Ktz.demonstrated the greatest 15N accumulation capacity,with the natural variation in isotopic ratio(δ 15N) and the isotope fractionation factor(ε,‰) being the highest among the species investigated.The transformation and utilization of 15N by snails differed depending on the specific algae consumed(highest for Chlorella pyrenoidosa Chick.,lowest for M.aeruginisa).When snails was seeded in the experimental pond,the algae population structure changed significantly,and total algal biomass as well as the concentration of all nitrogen species decreased,causing an increase in water transparency.A model,incorporating several chemical and biological parameters,was developed to predict algal biomass in an aquatic system when snails was present.The data collected during this investigation indicated that the gastropods such as snails could significantly impact biological community and water quality of small water bodies,suggesting a role for biological control of noxious algal blooms associated with eutrophication. | Shiqun Han Shaohua Yan Kaining Chen Zhenhua Zhang Rengel Zed Jianqiu Zhang Wei Song Haiqin Liu | 2010 | Journal of Environmental Sciences2010,22,2: | 14 |
| 3 | Modeling and optimal energy management of a power split hybrid electric vehicle显示文摘With the combination modes of engine and two electric machines,the power split device allows higher efficiency of the engine.The operation and of a power split HEV are analyzed,and the system dynamic model HEV is established event-driven for HEV forward system simulation dynamics controller design.Considering the mode,the fact the mode that the operation modes of is the are and the the is continuous theory.time-driven this for each structure selection of the controller built and the described finite with hybrid automaton control In control structure,process is depicted by the state mode machine(FSM).The multi-mode switch controller is designed to realize power distribution.Furthermore,vehicle operations programming are optimized,and finite the prediction nonlinear model horizon.predictive control(NMPC)strategy is applied by that implementing the dynamic(DP)and in the Comparative simulation The results optimal demonstrate strategy hybrid in control structure is effective feasible for HEV energy management design.NMPC is superior improving fuel economy. | SHI DeHua WANG ShaoHua Pierluigi Pisu CHEN Long WANG RuoChen WANG RenGuang | 2017 | Science China(Technological Sciences)2017,60,5: | 14 |
| 4 | Genome of Wild Mandarin and Domestication History of Mandarin显示文摘官员(柠檬 reticulata ) 是世界范围的最重要的柠檬庄稼之一。它的驯服被相信发生在华南,它是四几千年的官员耕作的中心之一。我们在 Nanling 区域附近收集了官员的自然野人口并且在附近栽培了 landraces。我们发现柠檬性的酸水平戏剧性地在栽培官员被减少。理解 ? 官员驯服的基因基础,我们 de novo 装配了野官员的一个草稿染色体并且分析了一套 104 个柠檬染色体。我们发现 Mangshan 官员是一种原始类型并且二个独立驯服事件发生了,分别地导致在北方和南方 Nanling 山的二组栽培官员(MD1 和 MD2 ) 。二个瓶颈和有效人口尺寸的二扩大为栽培官员的 MD1 组被识别。然而,在 MD2 组织 ? 在人口尺寸有长、连续的减少。MD1 和 MD2 官员从栽培 pummelo 种类显示出种间的基因渗入的不同模式。我们在官员的驯服期间在选择下面可能在基因在柠檬酸盐内容的规定包含了的 aconitate hydratase (ACO ) 识别了高分叉的一个区域,它是。这研究为现存野官员人口的地理起源提供具体基因证据并且使驯服和官员的进化历史清楚些。 | Lun Wang Fa He Yue Huang Jiaxian He Shuizhi Yang Jiwu Zeng Chongling Deng Xiaolin Jiang Yiwen Fang Shaohua Wen Rangwei Xu Huiwen Yu Xiaoming Yang Guangyan Zhong Chuanwu Chen Xiang Yan Changfu Zhou Hongyan Zhang Zongzhou Xie Robert M. Larkin Xiuxin Deng Qiang Xu | 2018 | Molecular Plant2018,11,8: | 14 |
| 5 | Effects of culm carbohydrate partitioning on basal stem strength in a high-yielding rice population显示文摘Rice culm carbohydrate transport can simultaneously affect grain filling and stem lodging resistance by regulating non-structural carbohydrate(NSC) and structural carbohydrate(SC) contents. However, the relationship between carbohydrate transposition and culm strength is not well documented. Accordingly, a high-yielding hybrid rice cultivar(Y Liangyou 2) was tested under different N fertilization regimes at two locations, Taoyuan(a special high-yield eco-site), Yunnan province and Danyang(a representative eco-site of the middle and lower Yangtze), Jiangsu province, China. Significantly higher grain yield and basal stem strength were found at Taoyuan than Danyang under all N rates throughout the two-year experiment. At heading stage, soluble sugars, starch, cellulose and lignin contents of the basal culm at Taoyuan were significantly 132.0%, 73.7%, 1.2%, and 62.7% higher than those at Danyang, respectively. At 20 days after heading, soluble sugars and starch content at Taoyuan decreased significantly compared to Danyang, but lignin content remained higher. Culm carbohydrate transport to kernels at Taoyuan was significantly greater than that at Danyang, and the proportion of soluble sugars and starch was correspondingly 62.9%lower. However, the proportion of lignin and cellulose was 22.7% higher at Taoyuan than that at Danyang. Soluble sugars and starch partitioning were significantly reduced under an increased nitrogen application rate, but SC partitioning was little affected. There were significant positive correlations between basal culm bending stress and dry weight and cellulose and lignin proportions at both locations under all N rates, suggesting that the higher SC proportion at 20 days after heading was primarily responsible for culm strength.These results suggest that high-yielding rice populations with greater culm strength require both moderate NSC transport and greater SC accumulation. | Jun Zhang Ganghua Li Qingyu Huang Zhenghui Liu Chengqiang Ding She Tang Lin Chen Shaohua Wang Yanfeng Ding Weijian Zhang | 2017 | The Crop Journal2017,5,6: | 13 |
| 6 | Field investigations of high stress soft surrounding rocks and deformation control显示文摘Field investigations of high stress soft rock deformations show that the high stress soft rock roadway can slide with large deformation. Severe extrusion and floor heave can also be subsequently observed. The supported roadway can be locally damaged or completely fail, where the floor has a large deformation and/or is seriously damaged. The factors inducing large deformation of surrounding rocks in deep roadway are rock strengths, structure face cutting types, stress states, stress release, support patterns,and construction methods. Based on the deformation characteristics of high stress soft rock roadway, a comprehensive support scheme is proposed. The overall support technology of 'step-by-step and joint,hierarchical reinforcement' for roadway is presented, and the anchor cable and bolt parameters to check the design methods are also given. Finally, the proposed comprehensive support method 'bolt t metal mesh t U-steel arch t shortcrete t grouting and cable' is used in the extension section of east main haulage roadway at 850 m level of Qujiang coal mine. The 173-day monitoring results show that the average convergence of sidewalls reaches 208 mm, and the average relative convergence of roof and floor reaches 448 mm, suggesting that this kind of support technology for controlling large deformation of high stress soft surrounding rock roadway is effective. | Weijian Yu Weijun Wang Xinyuan Chen Shaohua Du | 2015 | Journal of Rock Mechanics and Geotechnical Engineering2015,7,4: | 12 |
| 7 | Methane emissions from rice fields under continuous straw return in the middle-lower reaches of the Yangtze River显示文摘A three-year experiment was conducted in the middle-lower reaches of the Yangtze River in China to study the influence of continuous wheat straw return during the rice season and continuous rice straw return in wheat on methane (CH 4 ) emissions from rice fields in which, the rice-wheat rotation system is the most dominant planting pattern. The field experiment was initiated in October 2009 and has continued since the wheat-growing season of that year. The analyses for the present study were conducted in the second (2011) and third (2012) rice growing seasons. Four treatments, namely, the continuous return of wheat straw and rice straw in every season (WR), of rice straw but no wheat straw return (R), of wheat straw but no rice straw return (W) and a control with no straw return (CK), were laid out in a randomized split-plot design. The total seasonal CH 4 emissions ranged from 107.4 to 491.7 kg/ha (2011) and 160.3 to 909.6 kg/ha (2012). The increase in CH 4 emissions for treatments WR and W were 289% and 230% in the second year and 185% and 225% in the third year, respectively, in relation to CK. We observed less methane emissions in the treatment R than in CK by 14%-43%, but not statistically significant. Treatment R could increase rice productivity while no more CH 4 emission occurs. The difference in the total CH 4 emissions mainly related to a difference in the methane flux rate during the first 30-35 days after transplant in the rice growing season, which was caused by the amount of dissolved oxygen in paddy water and the amount of reducible soil materials. | Pengfu Hou Ganghua Li Shaohua Wang Xin Jin Yiming Yang Xiaoting Chen Chengqiang Ding Zhenghui Liu Yanfeng Ding | 2013 | Journal of Environmental Sciences2013,25,9: | 10 |
| 8 | Higher PD-1 expression concurrent with exhausted CD8+ T cells in patients with de novo acute myeloid leukemia显示文摘Objective: To investigate the association between the T cell inhibitory receptor programmed death 1(PD-1)and T cell exhaustion status in T cells from patients with de novo acute myeloid leukemia(AML) and AML in complete remission(CR).Methods:Surface expression of PD-1 and the exhaustion and immunosenescence markers CD244 and CD57 on CD3+,CD4+ and CD8+ T cells from peripheral blood samples from 20 newly diagnosed,untreated AML patients and 10 cases with AML in CR was analyzed by flow cytometry.Twenty-three healthy individuals served as control.Results:A significantly higher percentage of PD-1+ cells were found for CD3+ T cells in the de novo AML group compared with healthy controls.In addition,an increased level of PD-1+ CD8+ T cells,but not PD-1+ CD4+,was found for CD3+ T cells in the de novo AML and AML-CR samples.A higher percentage of CD244+ CD4+,CD244+ CD8+,CD57+ CD4+ and CD57+ CD8+ T cells was found in CD3+ T cells in samples from those with de novo AML compared with those from healthy controls.Strong increased PD-1+ CD244+ and PD-1+ CD57+ coexpression was found for CD4+ and CD8+ T cells in the de novo AML group compared with healthy controls.Conclusions:We characterized the major T cell defects,including co-expression of PD-1 and CD244,CD57-exhausted T cells in patients with de novo AML,and found a particular influence on CD8+ T cells,suggesting a poor anti-leukemia immune response in these patients. | Jiaxiong Tan Shaohua Chen Yuhong Lu Danlin Yao Ling Xu Yikai Zhang Lijian Yang Jie Chen Jing Lai Zhi Yu Kanger Zhu Yangqiu Li | 2017 | Chinese Journal of Cancer Research2017,29,5: | 10 |
| 9 | Vehicle height control of electronic air suspension system based on mixed logical dynamical modelling显示文摘Due to the coexistence and coupling of continuous variables and discrete events, the vehicle height adjustment process of electronic air suspension system can be regarded as a typical hybrid system. Therefore, the hybrid system theory was applied to design a novel vehicle height control strategy in this paper. A nonlinear mechanism model of the vehicle height adjustment system was established based on vehicle system dynamics and thermodynamic theory for variable-mass gas charge/discharge system. In order to model both the continuous/discrete dynamics of vehicle height adjustment process and the on-off statuses switching of solenoid valves, the framework of mixed logical dynamical(MLD) modelling was used. On the basis of the vehicle height adjustment control strategy, the MLD model of the adjustment process was built by introducing auxiliary logical variables and auxiliary continuous variables. Then, the co-simulation of the nonlinear mechanism model and the MLD model was conducted based on the compiling of HYSDEL. The simulation and experimental results show that the proposed control strategy can not only adjust the vehicle height effectively, but also achieve the on-off statuses direct control of solenoid valves. | SUN XiaoQiang CHEN Long WANG ShaoHua XU Xing | 2015 | Science China(Technological Sciences)2015,58,11: | 10 |
| 10 | Ferrites boosting photocatalytic hydrogen evolution over graphitic carbon nitride: a case study of(Co, Ni)Fe_2O_4 modification显示文摘The charge carrier separation and surface catalytic redox reactions are of primary importance as elementary steps in photocatalytic hydrogen evolution. In this study, both of these two processes in photocatalytic hydrogen evolution over graphitic carbon nitride(g-C_3N_4) were greatly promoted with the earth-abundant ferrites(Co,Ni)Fe_2O_4modification. Co Fe_2O_4 was further demonstrated to be a better modifier for g-C_3N_4 as compared to Ni Fe_2O_4,due to the more efficient charge carrier transfer as well as superior surface oxidative catalytic activity. When together loading Co Fe_2O_4 and reductive hydrogen production electrocatalyst Pt onto g-C_3N_4, the obtained Pt/g-C_3N_4/Co Fe_2O_4 photocatalyst achieved visible-light(λ>420 nm) hydrogen production rate 3.5 times as high as Pt/g-C_3N_4, with the apparent quantum yield reaching 3.35 % at 420 nm. | Jie Chen Daming Zhao Zhidan Diao Miao Wang Shaohua Shen | 2016 | Science Bulletin2016,61,4: | 10 |
| 11 | Periodontitis may induce gut microbiota dysbiosis via salivary microbiota显示文摘The aim of this study was to identify whether periodontitis induces gut microbiota dysbiosis via invasion by salivary microbes.First,faecal and salivary samples were collected from periodontally healthy participants(PH group,n=16)and patients with severe periodontitis(SP group,n=21)and analysed by 16S ribosomal RNA sequencing.Significant differences were observed in both the faecal and salivary microbiota between the PH and SP groups.Notably,more saliva-sourced microbes were observed in the faecal samples of the SP group.Then,the remaining salivary microbes were transplanted into C57BL6/J mice(the C-PH group and the C-SP group),and it was found that the composition of the gut microbiota of the C-SP group was significantly different from that of the C-PH group,with Porphyromonadaceae and Fusobacterium being significantly enriched in the C-SP group.In the colon,the C-SP group showed significantly reduced crypt depth and zonula occludens-1 expression.The m RNA expression levels of pro-inflammatory cytokines,chemokines and tight junction proteins were significantly higher in the C-SP group.To further investigate whether salivary bacteria could persist in the intestine,the salivary microbiota was stained with carboxyfluorescein diacetate succinimidyl ester and transplanted into mice.We found that salivary microbes from both the PH group and the SP group could persist in the gut for at least 24 h.Thus,our data demonstrate that periodontitis may induce gut microbiota dysbiosis through the influx of salivary microbes. | Jun Bao Lili Li Yangheng Zhang Min Wang Faming Chen Shaohua Ge Bin Chen Fuhua Yan | 2022 | International Journal of Oral Science2022,14,3: | 9 |
| 12 | treatment of swine wastewater in aerobic granular reactors: comparison of different seed granules as factors显示文摘使成粒状过程,药品化学药品性质,污染移动能力和有不同喂废水的氧气的小粒的细菌的社区(合成废水, R1;猪废水, R2 ) ,并且在对待猪废水的长期的操作反应堆的小粒的二种类型的一些参数的变化趋势在这个实验被调查。结果显示有合成废水的氧气的使成粒状在 R1 与猪废水和那完整的使成粒状相比有更快的率, R2 分别地在第 30 天和第 39 白天被到达。然而,尽管 feed 废水也在使成粒状过程期间在生物资源部分和氧气的小粒的细胞外的聚合物质上有明显的效果,这些性质在长期的操作以后在类似的水平留下了。而且,一个类似的增加趋势能也在反应堆,和 organics 的平均特定的移动率以氧气的小粒的氮移动效率被观察,在不变的阶段的氨氮为 R1 是 35.33 mgg 1 VSS 和 51.46 mgg 1 VSS ,并且为 R2 的 35.47 mgg 1 VSS 和 51.72 mgg 1 VSS 分别地。另外,在细菌的差异的移动发生在使成粒状过程,而在氧气的小粒的反应堆的细菌的社区没被种子小粒在长期的操作以后影响。 | Lin LIU Qiyu YOU Valerie GIBSON Xu HUANG Shaohua CHEN Zhilong YE Chaoxiang LIU | 2015 | Frontiers of Environmental Science & Engineering2015,9,6: | 9 |
| 13 | Overview of China's Antarctic research progress 1984–2016显示文摘It is more than 30 years since the first Chinese National Antarctic Research Expedition(CHINARE) landed in Antarctica in 1984, representing China's initiation in polar research. This review briefly summarizes the Chinese Antarctic scientific research and output accomplished over the past 30 years. The developments and progress in Antarctic research and the enhancement of international scientific cooperation achieved through the implementation of the CHINARE program have been remarkable. Since the 1980 s, four permanent Chinese Antarctic research stations have been established successively and 33 CHINAREs have been completed. The research results have been derived from a series of spatiotemporal observations in association with various projects and multidisciplinary studies in the fields of oceanography, glaciology, geology, geophysics, geochemistry, atmospheric science, upper atmospheric physics, Antarctic astronomy, biology and ecology, human medicine, polar environment observation, and polar engineering. | CHEN Liqi LIU Xiaohan BIAN Lingen CHEN Bo HUANG Hongliang HU Hongqiao LUO Wei SHI Guitao SHI Jiuxin XU Chengli YANG Guang ZHAO Yue ZHANG Shaohua | 2017 | Advances in Polar Science2017,28,3: | 9 |
| 14 | Nonlinear Hyperbolic-Parabolic System Modeling Some Biological Phenomena显示文摘 | WU Shaohua CHEN Hua | 2011 | Journal of Partial Differential Equations2011,24,1: | 8 |
| 15 | Occurrence and removal of organic micropollutants in the treatment of landfill leachate by combined anaerobic-membrane bioreactor technology显示文摘Organic micropollutants,with high toxicity and environmental concern,are present in the landfill leachate at much lower levels than total organic constituents (chemical oxygen demand (COD),biochemical oxygen demand (BOD),or total organic carbon (TOC)),and few has been known for their behaviors in different treatment processes.In this study,occurrence and removal of 17 organochlorine pesticides (OCPs),16 polycyclic aromatic hydrocarbons (PAHs),and technical 4-nonylphenol (4-NP) in landfill leachate in a combined anaerobic-membrane bioreactor (MBR) were investigated.Chemical analyses were performed in leachates sampled from different treatment processes,using solid-phase extraction and gas chromatography with electron capture detector and mass spectrometry.Concentrations of OCPs,PAHs,and 4-NP in the raw leachate were detected within the range from ND (not detected) to 595.2 ng/L,which were as low as only 10-7-10-5 percentage of TOC (at the concentration of 2,962 mg/L).The removal of 4-NP was mainly established in the MBR process,in agreement with removals of COD,BOD,and TOC.However,the removals of OCPs and PAHs were different,mainly achieved in the anaerobic process.High removal effciencies of both total organic constituents and organic micropollutants could be achieved by the combined anaerobic-MBR technology.The removal effciencies of total organic constituents were in the order of BOD (99%) > COD (89%) > TOC (87%),whereas the removal effciencies of investigated organic micropollutants were as follows: OCPs (94%) > 4-NP (77%) > PAHs (59%). | Yiping XU Zijian WANG | 2008 | Journal of Environmental Sciences2008,20,11: | 7 |
| 16 | Malus-metasurface-assisted polarization multiplexing显示文摘Polarization optics plays a pivotal role in diffractive,refractive,and emerging flat optics,and has been widely employed in contemporary optical industries and daily life.Advanced polarization manipulation leads to robust control of the polarization direction of light.Nevertheless,polarization control has been studied largely independent of the phase or intensity of light.Here,we propose and experimentally validate a Malus-metasurface-assisted paradigm to enable simultaneous and independent control of the intensity and phase properties of light simply by polarization modulation.The orientation degeneracy of the classical Malus’s law implies a new degree of freedom and enables us to establish a one-to-many mapping strategy for designing anisotropic plasmonic nanostructures to engineer the Pancharatnam–Berry phase profile,while keeping the continuous intensity modulation unchanged.The proposed Malus metadevice can thus generate a near-field greyscale pattern,and project an independent far-field holographic image using an ultrathin and single-sized metasurface.This concept opens up distinct dimensions for conventional polarization optics,which allows one to merge the functionality of phase manipulation into an amplitudemanipulation-assisted optical component to form a multifunctional nano-optical device without increasing the complexity of the nanostructures.It can empower advanced applications in information multiplexing and encryption,anti-counterfeiting,dual-channel display for virtual/augmented reality,and many other related fields. | Liangui Deng Juan Deng Zhiqiang Guan Jin Tao Yang Chen Yan Yang Daxiao Zhang Jibo Tang Zhongyang Li Zile Li Shaohua Yu Guoxing Zheng Hongxing Xu Cheng-Wei Qiu Shuang Zhang | 2020 | Light(Science & Applications)2020,9,1: | 7 |
| 17 | THE FREE BOUNDARY PROBLEM IN BIOLOGICAL PHENOMENA显示文摘 | Chen Hua Wu Shaohua | 2007 | Journal of Partial Differential Equations2007,20,2: | 7 |
| 18 | Landfill leachate treatment by MBR: Performance and molecular weight distribution of organic contaminant显示文摘A membrane bioreactor (MBR) with an air-lift bioreactor and gravity flow is applied to treating landfill leachate. More than 99% of BOD5 (biochemical oxygen demand for five days) removal effi-ciency is achieved with less than 35 mg/L of BOD_5 in the effluent at less than 1.71 kg BOD5/m^3·d of BOD_5 loading rate. When DO (dissolved oxygen) is maintained at the range of 2.3―2.8 mg/L and the loading rate of NH_4^+-N (ammonium nitrogen) is kept at 0.16― 0.24 kg NH_4^+-N/m^3·d, the NH_4^+-N in the effluent is less than 15 mg/L. However, compared with high removal rates of BOD_5 and NH_4^+-N, the removal effi-ciency of soluble chemical oxygen demand (SCOD) varies between 70% and 96%. The investigation of molecular weight (MW) distribution has been carried out by the gel permeation chromatography (GPC) so as to understand the fate of organic matters in the MBR treating of landfill leachate. Results indicate that organic matters of the landfill leachate are composed of a high MW fraction (MW of the peak, MWp = 11480―13182 Da) and a low MW fraction (MWp = 158―275 Da). The high MW fraction is not biode-gradable, but can be decreased with microfiltration membrane. The most of the low MW fraction is bio-degradable, but the residue of the low MW fraction is able to permeate through the membrane, thus re-sulting in high SCOD in the effluent of the MBR. | CHEN Shaohua LIU Junxin | 2006 | Chinese Science Bulletin2006,51,23: | 7 |
| 19 | Pathways related to PMA-differentiated THP1 human monocytic leukemia cells revealed by RNA-Seq显示文摘Previous analyses have reported that the human monocytic cell line THP1 can be differentiated into cells with macrophage-like characteristics by phorbol 12-myristate 13-acetate(PMA). However, little is known about the mechanism responsible for regulating this differentiation process. Here, we performed high-throughput RNA-Seq analysis to investigate the genes differently expressed in THP1 cells treated with and without PMA and examined those that may be responsible for the PMA-induced differentiation of monocytes into macrophages. We found 3,000 genes to be differentially expressed after PMA treatment. Gene ontology analysis revealed that genes related to cellular processes and regulation of biological processes were significantly enriched. KEGG analysis also demonstrated that the differentially expressed genes(DEGs) were significantly enriched in the PI3K/AKT signaling pathway and phagosome pathway. Importantly, we reveal an important role of the PI3K/AKT pathway in PMA-induced THP1 cell differentiation. The identified DEGs and pathways may facilitate further study of the detailed molecular mechanisms of THP1 differentiation. Thus, our results provide numerous potential therapeutic targets for modulation of the differentiation of this disease. | ZENG ChengWu WANG WenTao YU XiBao YANG LiJian CHEN ShaoHua LI YangQiu | 2015 | Science China(Life Sciences)2015,58,12: | 7 |
| 20 | A Hybrid Approach to Modeling and Control of Vehicle Height for Electronically Controlled Air Suspension显示文摘The control problems associated with vehicle height adjustment of electronically controlled air suspension(ECAS) still pose theoretical challenges for researchers, which manifest themselves in the publications on this subject over the last years. This paper deals with modeling and control of a vehicle height adjustment system for ECAS, which is an example of a hybrid dynamical system due to the coexistence and coupling of continuous variables and discrete events. A mixed logical dynamical(MLD) modeling approach is chosen for capturing enough details of the vehicle height adjustment process. The hybrid dynamic model is constructed on the basis of some assumptions and piecewise linear approximation for components nonlinearities. Then, the on-off statuses of solenoid valves and the piecewise approximation process are described by propositional logic, and the hybrid system is transformed into the set of linear mixed-integer equalities and inequalities, denoted as MLD model, automatically by HYSDEL. Using this model, a hybrid model predictive controller(HMPC) is tuned based on online mixed-integer quadratic optimization(MIQP). Two different scenarios are considered in the simulation, whose results verify the height adjustment effectiveness of the proposed approach. Explicit solutions of the controller are computed to control the vehicle height adjustment system in realtime using an offline multi-parametric programming technology(MPT), thus convert the controller into an equivalent explicit piecewise affine form. Finally, bench experiments for vehicle height lifting, holding and lowering procedures are conducted, which demonstrate that the HMPC can adjust the vehicle height by controlling the on-off statuses of solenoid valves directly. This research proposes a new modeling and control method for vehicle height adjustment of ECAS, which leads to a closed-loop system with favorable dynamical properties. | SUN Xiaoqiang CAI Yingfeng WANG Shaohua LIU Yanling CHEN Long | 2016 | Chinese Journal of Mechanical Engineering2016,29,1: | 7 |