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| 1 | GS6, A Member of the GRAS Gene Family,Negatively Regulates Grain Size in Rice显示文摘Grain size is an important yield related trait in rice.Intensive arti cial selection for grain size during domestication is evidenced by the larger grains of most of today’s cultivars compared with their wild relatives.However,the molecular genetic control of rice grain size is still not well characterized.Here,we report the identi cation and cloning of Grain Size 6(GS6),which plays an important role in reducing grain size in rice.A premature stop at the t348 position in the coding sequence(CDS)of GS6 increased grain width and weight signi cantly.Alignment of the CDS regions of GS6 in 90 rice materials revealed three GS6alleles.Most japonica varieties(95%)harbor the Type I haplotype,and 62.9%of indica varieties harbor the Type II haplotype.Association analysis revealed that the Type I haplotype tends to increase the width and weight of grains more than either of the Type II or Type III haplotypes.Further investigation of genetic diversity and the evolutionary mechanisms of GS6showed that the GS6gene was strongly selected in japonica cultivars.In addition,a'ggc'repeat region identi ed in the region that encodes the GRAS domain of GS6 played an important historic role in the domestication of grain size in rice.Knowledge of the function of GS6might aid efforts to elucidate the molecular mechanisms that control grain development and evolution in rice plants,and could facilitate the genetic improvement of rice yield. | Lianjun Sun Xiaojiao Li Yongcai Fu Zuofeng Zhu Lubin Tan Fengxia Liu Xianyou Sun Xuewen Sun Chuanqing Sun | 2013 | Journal of Integrative Plant Biology2013，55，10： | 44 |
| 2 | Variations of sulfur and carbon isotopes in seawater during the Doushantuo stage in late Neoproterozoic显示文摘Successive analyses of sulfur and carbon isotopic compositions of carbonates strata in the Doushantuo Formation in the Yangtze area were accomplished through a method of extracting trace sulfate from carbonates. Sulfur and carbon isotopic compositions of coeval seawater were estimated from the samples that show the least diagenetic alteration. A high-resolution age curve of sulfur isotopes in seawater sulfates was obtained in the Doushantuo stage, which reflects the trend of variation in seawater sulfur isotopes after the Neoproterozoic snowball Earth event. Similar characteristics of variation in carbon isotopes were observed in the coeval carbonates. A large positive d 34S excursion over +20?occurs in ancient seawater sulfates in the early Doushantuo stage. Simultaneously, the d 13C values in ancient seawater carbonates exhibit a positive excursion up to 10. The maximum d 34S and d 13C values are +46.4 and +6.9? respectively. In the middle Doushantuo stage, the range of variation in d 34S values of seawater is relatively narrow, but d 13C values are quite high. Then, d 34S values of seawater become oscillating, and the same occurs in d 13C values. Negative excursions in d 34S and d 13C values occur simultaneously at the end of the Doushantuo stage, and the minimum d 34S and d 13C values dropped down to -10.1 and -5.7? respectively. The characteristics of variations in the sulfur and carbon isotopes of ancient seawater imply strong changes in oceanic environment that became beneficial to inhabitation and propagation of organism. The organic productivity and burial rate of organic carbon once reached a quite high level during the Doushantuo stage. However, the state of environment became unstable after the global glaciation. The global climate and environment possibly were fluctuating and reiterating. The negative excursions in d 34S and d 13C values occurring at the end of the Doushantuo stage may represent a global event, which might be related to oxidation of deep seawater. | ZHANG Tonggang, CHU Xuelei, ZHANG Qirui, FENG Lianjun & HUO Weiguo Key Lab of Mineral Resources Exploration and Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China | 2003 | Chinese Science Bulletin2003，48，13： | 21 |
| 3 | Terminal Ediacaran anoxia in deep-ocean: Trace element evidence from cherts of the Liuchapo Formation, South China显示文摘Here we report a detailed trace element study of the cherts from Liuchapo Formation, which is a terminal Ediacaran (551-542 Ma) succession in South China deposited in deep-water basinal setting. The REE of Liuchapo cherts shows similar features as observed for anoxic modern seawater (but not for hydrothermal fluids), characterized by positive La anomaly (LaN/CeN = 0.83-1.91, average 1.37), moderately negative Ce anomaly (0.53-1.1, average 0.73), positive Gd anomaly (average 1.08), positive Y anomaly (average 1.21), and depleted LREE and MREE. In addition, the Liuchapo cherts have low ΣREE (3.36-56.13 ppm, average 20.6 ppm), low Al2O3, Ti, Th and Zr concentrations, and high Y/Ho ratios (up to 43.9). The redox-sensitive trace elements concentrations in the cherts do not correlate with detrital input proxies. All of these features suggest that the redox-sensitive trace elements in the cherts were authigenically concentrated in water column and their concentrations thus are excellent indicators of ancient redox conditions. Very low Th/U ratios, high V/(V+Ni) and FeT/Al ratios, enrichments of redox-sensitive trace elements (U, V, Mo), and low concentration of Mn in the cherts imply anoxia in the deep seawater. Our data reveal that the terminal Ediacaran ocean was not completely oxidized and the deep ocean was still anoxic, at least in South China. We propose that although the oxidative events existed in the terminal Ediacaran oceans, decomposition of organic matter prolonged anoxia in the deep ocean. | CHANG HuaJin CHU XueLei FENG LianJun HUANG Jing | 2009 | Science China Earth Sciences2009，52，6： | 16 |
| 4 | First China ocean reflection experiment using coastal GNSS-R显示文摘It is a new way for oceanographic remote sensing using the GNSS-Reflection technique. Sea waves, tides and sea surface wind can be obtained by analyzing the direct and reflected GPS signals from sea surface. It has become an advanced field concerned by many researchers. In this paper the first China Ocean Reflection Experiment (CORE) with the coastal GNSS-R in the southeast is reported and the method to retrieve oceanographic parameters with the direct and reflected GPS signals is studied. The primary retrievals of Significant Wave Height (SWH) are presented and also compared with the meas-urements from Ultrasonic Wave Gauge (UWG) in situ. | WANG Xin SUN Qiang ZHANG XunXie LU DaRen SHAO LianJun HU Xiong RUFFINI Giulio DUNNE Stephen FRANCOIS Soulat | 2008 | Chinese Science Bulletin2008，53，7： | 15 |
| 5 | Spatial modeling of the carbon stock of forest trees in Heilongjiang Province, China显示文摘Heilongjiang province is the largest forest zone in China and the forest coverage rate is 46%. Forests of Heilongjiang province play an important role in the forest ecosystem of China. In this study we investigated the spatial distribution of forest carbon storage in Heilongjiang province using 3083 plots sampled in 2010. We attempted to fit two global models, ordinary least squares model(OLS), linear mixed model(LMM), and a local model, geographically weighted regression model(GWR), to the relationship between forest carbon content and stand, environment, and climate factors. Five predictors significantly affected forest carbon storage and spatial distribution, viz. average diameter of stand(DBH), number of trees per hectare(TPH), elevation(Elev), slope(Slope) and the product of precipitation and temperature(Rain_Temp). The GWR model outperformed the two global models in both model fitting and prediction because it successfully reduced both spatial autocorrelation and heterogeneity in model residuals. More importantly, the GWR model provided localized model coefficients for each location in the study area, which allowed us to evaluate the influences of local stand conditions and topographic features on tree and stand growth, and forest carbon stock. It also helped us to better understand the impacts of silvicultural and management activities on the amount and changes of forest carbon storage across the province. The detailed information can be readily incorporated with the mapping ability of GIS software to provide excellent tools for assessing the distribution and dynamics of the forest-carbon stock in the next few years. | Chang Liu Lianjun Zhang Fengri Li Xingji Jin | 2014 | Journal of Forestry Research2014，25，2： | 14 |
| 6 | Carbon isotopic variations of Proterozoic carbonates in Jixian, Tianjin, China显示文摘Along the Proterozoic stratigraphic sections of Jixian, Tianjin, the ??13C values of carbonates are mostly negative in the Changchengian (Changcheng System), varying approximately within a range of (0±1)‰ in the Jixianian (Jixian System), and have commonly positive values of (2±2)‰ in the Qingbaikouan (Qingbaikou System). From Chuanlinggou Formation to Dahongyu Formation, i.e. from ca. 1700 Ma to 1600 Ma, the δ13C values of carbonates increase from about -3‰ to 0‰, but oscillate with large excursion in Dahongyu Formation. Two large excursions occur in the Jixianian, one in Yangzhuang Formation and the other in the third submember of Wumishan Formation overlaying. These integrated and continuous records of carbon isotope reflect secular variations of δ13C value in ancient seawater from ca. 1700 Ma to ca. 800 Ma. The increase and subsequent oscillation of seawater δ13C value occurring from the ages of ca. 1700 to ca. 1600 Ma and <1300 Ma may signify two correlative global tectonic events. | CHU Xuelei, ZHANG Tonggang, ZHANG Qirui, FENG Lianjun & ZHANG Fusong1. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China 2. Key Laboratory for Mineral Resources Research, Chinese Academy of Sciences, Beijing 100029, China Correspondence should be addressed to Chu Xuelei (email: xlchu@mail.c-geos.ac.cn) | 2004 | Science China Earth Sciences2004，47，2： | 13 |
| 7 | Protection of Cactus Polysaccharide against H_2O_2-induced damage in the rat cerebral cortex and hippocampus Differences in time of administration显示文摘BACKGROUND: Pharmacological research has shown that cactus polysaccharide (CP) has anti-oxidant, anti-inflammatory, anti-tumor, anti-aging, and immune-stimulating activities. It may also provide protective effects against oxidative stress injuries in the rat brain. OBJECTIVE: To validate the effects of CP on H2O2-induced oxidative stress injuries in the rat cerebral cortex and hippocampal slices 30 minutes prior to injury, as well as 30 minutes and 2.5 hours after injury. DESIGN: A randomized controlled experiment. SETTINGS: Department of Pharmacology, Tongji Medical College, Huazhong University of Science and Technology; Department of Pharmacology, College of Medical Science, Yangtze University. MATERIALS: A total of 50 male Sprague Dawley (SD) rats, normal grade and weighing 200-300 g, were provided by the Laboratory Animal Center of Tongji Medical College, Huazhong University of Science and Technology. The protocol was performed in accordance with ethical guidelines for the use and care of ani- mals. Cactus polysaccharide, a dried needle crystal, was extracted from Opuntia milpa alta at the Chemistry and Environment Engineering School of Yangtze University. The following chemicals and instruments were used: 2,3,5-triphenyl tetrazolium chloride (Sigma, St Louis, Missouri, USA); lactate dehydrogenase (LDH), superoxide dismutase (SOD), glutathione (GSH), and total antioxidant competence (T-AOC) assays (Ji- ancheng-Bioeng Institute, Nanjing); McIllwain tissue chopper (Mickle Laboratory Engineering, USA); and ELISA reader and Magellan software (TECAN, Austria). METHODS: This experiment was performed at the Department of Pharmacology, Medical College of Yangtze University, between March and June 2006. All rats were sacrificed after anesthesia. The cerebral cortex and hippocampus were dissected. Several cerebral cortex and hippocampus slices were selected as controls, while other sections were co-incubated with H2O2 for 30 minutes to induce an oxidative stress in- jury. The experimental slices were randomly divided into 3 groups: model group, low-dose group, and high-dose group. Slices from the low- and high-dose group were incubated with CP 30 minutes prior to in- jury, as well as 30 minutes and 2.5 hours after injury. The number of cerebral cortex and hippocampus slices at each time point was greater than 10 and 7, respectively. The control group slices were incubated with arti- ficial cerebrospinal fluid (aCSF) for 3 hours. The model group slices were incubated with aCSF for 30 min- utes, followed by 30 minutes of aCSF with H2O2 incubation to establish the oxidative stress injury model. Thereafter, the slices were re-incubated with aCSF for 2 hours. The slices in the low- and high-dose group were co-incubated with 0.33 mg/L CP or 1.67 mg/L CP, respectively. CP was applied either for 30 minutes prior to the H2O2 treatment, co-incubated with H2O2 for 30 minutes, or applied 2 hours after H2O2 treatment. MAIN OUTCOME MEASURES: Brain slice activity was determined by TTC staining. Biochemical markers, such as LDH, SOD, GSH, and T-AOC, were analyzed in clear supernatant liquid to study the phar- macological mechanisms. RESULTS: ① Effects of CP on H2O2-injured brain slices: TTC absorption level at 490 nm decreased with a 30-minute CP administration before and after injury. The TTC absorption values in the low- and high-dose group were significantly lower than the control group (P < 0.05-0.01). CP administration prior to insult had greater neuroprotective effects on brain slices than administration during the insult. CP Administration after insult had no obvious protective effects on the brain slices. There was no significant difference in TTC ab sorption levels between administration after 2.5 hours and the model group (P > 0.05). ② Effects of CP on substances released from H2O2-induced injury slices were as follows: following incubation with 2 mmol/L H2O2 for 30 minutes, LDH release was significantly increased from the rat cortical and hippocampal brain slices. T-AOC and GSH were decreased, which is in accordance with the TTC assay for evaluating the de- gree of slice injury. Prior administration of 0.33 mg/L CP and 1.67 mg/L CP decreased LDH release andenhanced T-AOC and GSH release in a dose-dependent manner. After H2O2-induced damage for 30 minutes, the release of SOD increased to some extent. SOD levels were further raised by preincubation with 0.33 mg/L CP or 1.67 mg/L CP, compared to the model group (P < 0.05). CONCLUSION: CP can protect rat cerebral cortex and hippocampal slices from H2O2-induced injury. This protective effect is dosedependent. CP administration before injury is more effective than during or after injury. | Xianju Huang Qin Li Lianjun Guo Zankai Yan | 2008 | Neural Regeneration Research2008，3，1： | 13 |
| 8 | Evaluation of zeolites synthesized from fly ash as potential adsorbents for wastewater containing heavy metals显示文摘The pure-form zeolites(A and X) were synthesized by applying a two-stage method during hydrothermal treatment of fly ash prepared initial Cu and Zn gel. The difference of adsorption capacity of both synthesized zeolits was assessed using Cu and Zn as target heavy metal ions. It was found that adsorption capacity of zeolite A showed much higher value than that of zeolite X. Thus,attention was focused on investigating the removal performance of heavy metal ions in aqueous solution on zeolite A,comparing with zeolite HS(hydroxyl-solidate) prepared from the residual fly ash(after synthesis of pure-form zeolite A from fly ash) and a commercial grade zeolite A. Batch method was used to study the influential parameters of the adsorption process. The equilibrium data were well fitted by the Langmuir model. The removal mechanism of metal ions followed adsorption and ion exchange processes. Attempts were also made to recover heavy metal ions and regenerate adsorbents. | WANG Chunfeng,LI Jiansheng,SUN Xia,WANG Lianjun,SUN XiuyunSchool of Chemical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China. | 2009 | Journal of Environmental Sciences2009，21，1： | 12 |
| 9 | Reuse of Fenton sludge as an iron source for NiFe_2O_4 synthesis and its application in the Fenton-based process显示文摘The potentially hazardous iron-containing sludge from the Fenton process requires proper treatment and disposal, which often results in high treatment cost. In this study, a novel method for the reuse of Fenton sludge as an iron source for the synthesis of nickel ferrite particles(NiFe_2O_4) is proposed. Through a co-precipitation method followed by sintering at 800°C, magnetic NiFe_2O_4 particles were successfully synthesized, which was confirmed by powder X-ray diffraction(XRD), scanning electronic microscopy(SEM), energy dispersive spectroscopy(EDS), Fourier transform infrared spectroscopy(FT-IR) and Raman spectroscopy. The synthesized NiFe_2O_4 could be used as an efficient catalyst in the heterogeneous Fenton process. In phenol degradation with H_2O_2 or NiFe_2O_4 alone, the phenol removal efficiencies within the reaction time of 330 min were as low as 5.9% ± 0.1% and 13.5% ±0.4%, respectively. However, in the presence of both NiFe_2O_4 and H_2O_2, phenol removal efficiency as high as 95% ± 3.4% could be achieved, indicating the excellent catalytic performance of NiFe_2O_4 in the heterogeneous Fenton process. Notably, a rapid electron exchange between_Ni II and_Fe III ions in the NiFe_2O_4 structure could be beneficial for the Fenton reaction. In addition, the magnetic catalyst was relatively stable, highly active and recoverable, and has potential applications in the Fenton process for organic pollutant removal. | Hui Zhang Jianguo Liu Changjin Ou Faheem Jinyou Shen Hongxia Yu Zhenhuan Jiao Weiqing Han Xiuyun Sun Jiansheng Li Lianjun Wang | 2017 | Journal of Environmental Sciences2017，29，3： | 10 |
| 10 | Reduction of VOC emissions by a membrane-based gas absorption process显示文摘A membrane-based gas absorption (MGA) process was evaluated for the removal of volatile organic compounds (VOCs) based on C6H6/N2 mixture. The absorption of C6H6 from a C6H6/N2 mixture was investigated using a hydrophobic polypropylene hollow fiber membrane contactor and the aqueous solution of N-formyl morpholine (NFM) as absorbent. The effects of various factors on the overall mass transfer coefficient was investigated. The experimental results showed that the removal efficiency of C6H6 could reach 99.5% in present studied system. A mathematical model based on resistance-in-series concept was presented to predict the value of overall mass transfer coefficient. The average error between the predicted and experimental values is 7.9%. In addition, conventional packed columns for VOCs removal was also evaluated for comparison. | LI Rui, XU Jun, WANG Lianjun, LI Jiansheng, SUN Xiuyun School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China. | 2009 | Journal of Environmental Sciences2009，21，8： | 10 |
| 11 | Discussion on the Neoproterozoic glaciations in the South China Block and their related paleolatitudes显示文摘The Kaigas, Sturtian, Marinoan, and Gaskiers glaciations are widely recognized in Neoproterozoic. However, in the South China Block only the Jiangkou (Sturtian) and Nantuo (Marinoan) are symbolized by sedimentary records. The Kaigas, recorded by isotopic and chemical proxies, exhibited likely the nature of cold paleoclimate with local mountain glaciation. The correlation of the Doushantuo Formation with the Gaskiers is indicated by the carbon isotope excursion and the dated age from the interval, however the South China Block was then under non-glacial weather. With no paleomagnetic data, the position of the South China Block during the Sturtian glaciation cannot be determined. The paleolatitudes of the South China Block during the Kaigas and Nantuo glaciations are intermediate, even though the Nantuo was once rendered erratically deduced equatorial. In fact, the paleolatitudes of the South China Block during the Neoproterozoic glaciations are all likely at about 30°―40°. | ZHANG QiRui CHU XueLei FENG LianJun | 2009 | Chinese Science Bulletin2009，54，10： | 9 |
| 12 | Vulnerability and Sustainable Development Mode of Coal Cities in Northeast China显示文摘In this study, by carrying on the spot investigation to the seven coal cities in Northeast China and interview-ing with the local authority and the residents, the authors definite the vulnerability that is closed to exposure, sensitiv-ity and resilience, and set up vulnerability model of coal cities in Northeast China. At the same time, the authors broadly illustrate how the components of natural-social-economic system act in the coal area, so as to probe the ways to reduce vulnerability more effectively, such as preferential national policy and so on. Furthermore, the article studies the relationship between vulnerability and sustainable development. Vulnerability is a spatio-temporal function of sus-tainable development. The regional sustainable development refrains the spiral ascending of vulnerability. And the re-gional vulnerability and sustainable development appear in turn. Then the article analyzes the natural vulnerability, so-cial vulnerability and economic vulnerability of coal cities in Northeast China. At last, combing vulnerability model and situation of coal cities in Northeast China, the authors put forward regional technology innovation mode, multi-dimension structure transformation mode, attracting investment mode and recycling economy mode to reduce vulnerability. | LI Bo TONG Lianjun | 2008 | Chinese Geographical Science2008，18，2： | 9 |
| 13 | Automatic detection of oceanic eddies in reanalyzed SST images and its application in the East China Sea显示文摘Oceanic eddies may cause local sea surface temperature(SST), height, and salinity anomalies in remote sensing(RS) images. Remote sensed SST imagery has proven to be an effective technique in oceanic eddy detection, because of its high temporal and spatial resolution. Various techniques have been used to identify eddies from SST images. However, mainly owing to the strong morphological variation of oceanic eddies, there is arguably no uniquely correct eddy detection method. A scheme of algorithm based on quasi-contour tracing and clustering of eddy detection from SST dataset is presented. The method does not impose fixed restrictions or limitations during the course of 'suspected' eddy detection, and any eddy-like structures can be detected as 'suspected' eddies. Then, 'true' eddies can be identified based on the combination of intensity and spatial/temporal scale criteria. This approach has been applied to detect eddies in the East China Sea by using Operational SST & Sea Ice Analysis(OSTIA) dataset. Experiments proved that oceanic eddies ranging in diameter from tens to hundreds of kilometers can be detected. Through investigation of the 2007–2011 OSTIA daily SST dataset from the Kuroshio region in the East China Sea, we found that the most active regions for oceanic eddies are those along the Kuroshio path, northeast of Taiwan Island, the Yangtze Estuary and the Ryukyu Islands. About 86% of the cyclonic eddies and 87% of the anticyclonic eddies have the size of 50–100 km in diameter. Only 25% of the anticyclonic eddy and 26% of the cyclonic eddy have the strength more than 0.4°C in the sea surface layer. | ZHANG ChunHua LI HongLin LIU SongTao SHAO LianJun ZHAO Zhao LIU HongWei | 2015 | Science China Earth Sciences2015，58，12： | 8 |
| 14 | Removal of phosphate from wastewater using alkaline residue显示文摘Alkaline residue(AR) was found to be an efficient adsorbent for phosphate removal from wastewater. The kinetic and equilibrium of phosphate removal were investigated to evaluate the performance of modified alkaline residue. After treatment by NaOH(AR-NaOH), removal performance was significantly improved, while removal performance was almost completely lost after treatment by HCl(AR-HCl). The kinetics of the removal process by all adsorbents was well characterized by the pseudo second-order model. The Langmuir model exhibited the best correlation for AR-HCl, while AR was effectively described by Freundlich model. Both models were well fitted to AR-NaOH. The maximum adsorption capacities calculated from Langmuir equation were in following manner: AR-NaOH > AR > AR-HCl. Phosphate removal by alkaline residue was pH dependent process. Mechanisms for phosphate removal mainly involved adsorption and precipitation, varied with equilibrium pH of solution. For AR-HCl, the acid equilibrium pH(< 6.0) was unfavorable for the formation of Ca-P precipitate, with adsorption as the key mechanism for phosphate removal. In contrast, for AR and ARNaOH, precipitation was the dominant mechanism for phosphate removal, due to the incrase on pH(> 8.0) after phosphate removal. The results of both XRD and SEM analysis confirmed CaHPO4·2H2O formation after phosphate removal by AR and AR-NaOH. | Yubo Yan Xiuyun Sun Fangbian Ma Jiansheng Li Jinyou Shen Weiqing Han Xiaodong Liu Lianjun Wang | 2014 | Journal of Environmental Sciences2014，26，5： | 8 |
| 15 | A mesoscale eddy detection method of specific intensity and scale from SSH image in the South China Sea and the Northwest Pacific显示文摘Mesoscale eddies exist almost everywhere in the ocean and play important roles in the ocean circulation of the world. These eddies may cause sound spread singular regions and bring great influences to the upwater ship and underwater aircraft. Due to the lack of hydrographic survey datasets, study of mesoscale eddies has been greatly restricted. Fortunately, satellite altimeter provided an effective way to study mesoscale eddies. An automatic detection algorithm is introduced to detect mesoscale eddies of specific intensity and spatial/temporal scale based on satellite sea surface height(SSH) data and the algorithm is applied in a strong eddy activity region: the South China Sea and the Northwest Pacific. The algorithm includes four steps. The first step is preprocessing of the SSH image, which includes elimination of error SSH data and interpolation. The second step is to detect suspected mesoscale eddies from preprocessed SSH images by dynamic threshold adjustment and morphological method, and the suspected mesoscale eddy detection includes two procedures: suspected mesoscale eddy core region detection and suspected mesoscale eddy brim extraction. The third step is to pick out mesoscale eddies satisfied with specified criteria from suspected mesoscale eddies. The criteria include three items, that is, intensity criterion, spatial scale, criterion and temporal scale criterion. The last step is algorithm performance analysis and verification. The algorithm has the capability of adaptive parameter adjustment, and can extract mesoscale eddies of interested intensity and spatial/temporal scale. The paper can provide a basis for analyzing space-time characteristics of mesoscale eddy in the South China Sea and the Northwest Pacific. | ZHANG ChunHua XI XiaoLiang LIU SongTao SHAO LianJun HU XiaoHua | 2014 | Science China Earth Sciences2014，57，8： | 8 |
| 16 | Preparation of nano-sized Bi_2Te_3 thermoelectric material powders by cryogenic grinding | Xiaozong Chen a, Leifeng Liu b, Yuan Dong a, Lianjun Wang a, Lidong Chen c, Wan Jiang a, a State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, 2999 people of North Road, Shanghai 201620, PR China b Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden c Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, PR China | 2012 | Progress in Natural Science:Materials International2012，22，3： | 8 |
| 17 | Simultaneous pyridine biodegradation and nitrogen removal in an aerobic granular system显示文摘Simultaneous pyridine biodegradation and nitrogen removal were successfully achieved in a sequencing batch reactor(SBR) based on aerobic granules. In a typical SBR cycle, nitritation occurred obviously after the majority of pyridine was removed, while denitrification occurred at early stage of the cycle when oxygen consumption was aggravated. The effect of several key operation parameters, i.e., air flow rate, influent NH_4^+-N concentration,influent p H and pyridine concentration, on nitritation, pyridine degradation and total nitrogen(TN) removal, was systematically investigated. The results indicated that high air flow rate had a positive effect on both pyridine degradation and nitritation but a negative impact of overhigh air flow rate. With the increase of NH_4^+ dosage, both nitritation and TN removal could be severely inhibited. Slightly alkaline condition, i.e., pH 7.0–8.0, was beneficial for both pyridine degradation and nitritation. High pyridine dosage often resulted in the delay of both pyridine degradation and nitritation. Besides, extracellular polymeric substances production was affected by air flow rate, NH_4^+ dosage, pyridine dosage and p H.In addition, high-throughput sequencing analysis demonstrated that Bdellovibrio and Paracoccus were the dominant species in the aerobic granulation system. Coexistence of pyridine degrader, nitrification related species, denitrification related species, polymeric substances producer and self-aggregation related species was also confirmed by highthroughput sequencing. | Xiaodong Liu Shijing Wu Dejin Zhang Jinyou Shen Weiqing Han Xiuyun Sun Jiansheng Li Lianjun Wang | 2018 | Journal of Environmental Sciences2018，30，5： | 7 |
| 18 | High-quality de novo assembly of the Eucommia ulmoides haploid genome provides new insights into evolution and rubber biosynthesis显示文摘We report the acquisition of a high-quality haploid chromosome-scale genome assembly for the first time in a tree species,Eucommia ulmoides,which is known for its rubber biosynthesis and medicinal applications.The assembly was obtained by applying PacBio and Hi–C technologies to a haploid that we specifically generated.Compared to the initial genome release,this one has significantly improved assembly quality.The scaffold N50(53.15 MB)increased 28-fold,and the repetitive sequence content(520 Mb)increased by 158.24 Mb,whereas the number of gaps decreased from 104,772 to 128.A total of 92.87%of the 26,001 predicted protein-coding genes identified with multiple strategies were anchored to the 17 chromosomes.A new whole-genome duplication event was superimposed on the earlierγpaleohexaploidization event,and the expansion of long terminal repeats contributed greatly to the evolution of the genome.The more primitive rubber biosynthesis of this species,as opposed to that in Hevea brasiliensis,relies on the methylerythritol-phosphate pathway rather than the mevalonate pathway to synthesize isoprenyl diphosphate,as the MEP pathway operates predominantly in trans-polyisoprene-containing leaves and central peels.Chlorogenic acid biosynthesis pathway enzymes were preferentially expressed in leaves rather than in bark.This assembly with higher sequence contiguity can foster not only studies on genome structure and evolution,gene mapping,epigenetic analysis and functional genomics but also efforts to improve E.ulmoides for industrial and medical uses through genetic engineering. | Yun Li Hairong Wei Jun Yang Kang Du Jiang Li Ying Zhang Tong Qiu Zhao Liu Yongyu Ren Lianjun Song Xiangyang Kang | 2020 | Horticulture Research2020，7，1： | 7 |
| 19 | Induced drill-spray during hydraulic slotting of a coal seam and its influence on gas extraction显示文摘Hydraulic slotting can induce drill spray in a gassy,low permeability coal seam.This then influences subsequent gas extraction.This paper describes the drill spray phenomenon from a mechanical perspective and analyzes the effects of water jet damage during slotting.A simulation of the stresses around the drill hole and slot was prepared using FLAC-3D code.It helps explain the induction of drill spray during hydraulic slotting.The stress concentration around the bore increases as the diameter of the hole increases.As the hole enlarges the variation in stress also increases,which introduces an instability into the coal.This allows easy breaking and removal of the coal.Destruction of the coal structure by the water jet is the major factor causing drill spray.Energy stored as either strain or gas pressure is released by the water jet and this causes the coal to fracture and be expelled from the hole.Field tests showed the effect on gas extraction after slotting with drill spray.The concentration of gas increases after drilling.Compared to conventional techniques,the hydraulic slotted bore gives a gas concentration three times higher and has an effective range twice as far.This makes the gas extraction process more efficient and allows reduced construction effort. | Shen Chunming Lin Baiquan Zhang Qizhi Yang Wei Zhang Lianjun | 2012 | International Journal of Mining Science and Technology2012，22，6： | 7 |
| 20 | Thymic epithelial progenitor cells and thymus regeneration: an update显示文摘胸腺为 T 房间开发和成熟提供必要微型环境。Thymic 上皮的房间(侦探) 它是 thymic 填写了外皮的上皮的房间(cTECs ) 和 thymic 髓的上皮的房间(mTECs ) ,很好被记录了为这些紧调整的过程批评。侦探的普通祖先房间是否能产生 cTECs 和 mTECs,长是争论的。大进步被取得了在最近的年里描绘普通侦探祖先房间。我们此处在胸腺新生象这些祖先房间一样关于侦探区别讨论唯一的起源范例。 | Lianjun Zhang Liguang Sun Yong Zhao | 2007 | Cell Research2007，17，1： | 7 |
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