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| 1 | Mechanism and control of lake eutrophication显示文摘A review about lake naturally eutrophi- cating, the internal loading of nutrients from lake sediment as well as the mechanism of algal blooms and the control practices was made, especially the eutrophication problem of shallow lakes since sev- enty percent of fresh water lakes in China are shallow lakes. It was found that shallow lakes are apt toward eutrophication than deep lakes. Without any influ- ences of human activity, shallow lakes in the middle and lower reaches of Yangtze River are still easily eutrophicated, which may be owing to the effects of flood in this area. In shallow lakes, sediments are frequently disturbed by wind-wave and resuspended, which result in huge nutrients release to overlying water. This may be the major reason for higher in- ternal loading of nutrients in shallow lakes than in deep lakes. Algal bloom is an extreme response of lake ecosystem to the eutrophication. Appearance of algal blooms is related to physical condition of lakes, such as underwater radiation (or transparency), temperature, and hydrodynamic conditions, or related to geochemical conditions of lakes, like concentra- tions of nutrients and ratio of nitrogen to phosphorus, as well as the physiological advantage of cyanobac- teria such as vacuole for moving towards the radiant energy-rich zone and the mycosporine-like amino acids (MAAs) for resisting the harm of ultraviolet ra- diation. In shallow lakes, these advantages of cyanobacteria are favorable in the competition than in deep lakes. Also being the shallowness, it is more difficult to reduce nutrient loading and to control algae blooms in shallow lakes. For the control of eutrophi- cation, people should follow the sequence from pollution sources control, ecological restoration tocatchment management. To control the internal nu- trient release, physical, chemical, biological tech- niques, and even bionic techniques could be selected. The idea of ecological restoration for a eutrophic lake is to shift the ecosystem from phytoplankton-domi- nant state to macrophyte-dominant state. To realize the shift of ecosystem state, environmental condition improvement is the fundamental work. Nowadays, we should do more work on environmental condition improvement than on planting of macrophytes since we are lack of the knowledge about the relationship between macrophyte and lake ecosystem. Empha- sizing the macrophyte planting, therefore, has blind- ness at present. Because all lakes have different characteristics of environment and ecosystem, ap- plicable lake harness techniques should be selected based on the distinct ecosystem types and environ- mental problems. | QIN Boqiang YANG Liuyan CHEN Feizhou ZHU Guangwei ZHANG Lu CHEN Yiyu | 2006 | Chinese Science Bulletin2006，51，19： | 38 |
| 2 | Decomposition and phosphorus release from four different size fractions of Microcystis spp.taken from Lake Taihu,China显示文摘Decomposition of Microcystis is accompanied by the release of phosphorus,during bacteria play an important role.A series of experiments were undertaken to evaluate the effect of bacteria on the decomposition of Microcystis taken from Lake Taihu,China,a lake that is suffering from dense Microcystis blooms.The 16 experiments involved four size fractions of colonial Microcystis with or without the addition of lake sediment and Gram-negative bacterial inhibitor NAN_3.The highest decomposition rates were reco... | Yuanyuan, Wang Feizhou, Chen | 2008 | Journal of Environmental Sciences2008，20，7： | 12 |
| 3 | Progress and Applications of Visual SLAM显示文摘Visual simultaneous localization and mapping (SLAM) provides mapping and self-localization results for a robot in an unknown environment based on visual sensors, that have the advantages of small volume, low power consumption, and richness of information acquisition. Visual SLAM is essential and plays a significant role in supporting automated and intelligent applications of robots. This paper presents the key techniques of visual SLAM, summarizes the current research status, and analyses the new trends of visual SLAM research and development. Finally, specific applications of visual SLAM in restricted environments, including deep space and indoor scenarios, are discussed. | Kaichang DI Wenhui WAN Hongying ZHAO Zhaoqin LIU Runzhi WANG Feizhou ZHANG | 2019 | Journal of Geodesy and Geoinformation Science2019，2，2： | 11 |
| 4 | The Late Carboniferous–Early Permian Ocean-Continent Transition in the West Junggar,Central Asian Orogenic Belt: Constraints from Columnar Jointed Rhyolite显示文摘The West Junggar of the western Central Asian Orogenic Belt is one of the typical regions in the term of ocean subduction, contraction and continental growth in the Late Paleozoic. However, it is still controversial on the exact time of ocean-continent transition so far. This study investigates rhyolites with columnar joint in the West Junggar for the first time.Based on zircon U-Pb dating, we determined that the ages of the newly-discovered rhyolites are between 303.6 and 294.5 Ma, belonging to Late Carboniferous–Early Permian, which is the oldest rhyolite with columnar joint preserved in the world at present. Geochemical results show that the characteristics of the major element compositions include a high content of SiO_2(75.78–79.20 wt%) and a moderate content of Al_2O_3(12.21–13.19 wt%). The total alkali content(K_2O +Na_2O) is 6.14–8.05 wt%, among which K_2O is 2.09–4.72 wt% and the rate of K_2O/Na_2O is 0.38–3.05. Over-based minerals such as Ne, Lc, and Ac do not appear. The contents of TiO_2(0.09–0.24 wt%), CaO(0.15–0.99 wt%) and MgO(0.06–0.18 wt%) are low. A/CNK=0.91–1.68, A/NK=1.06–1.76, and as such, these are associated with the quasi-aluminum-weak peraluminous high potassium calc-alkaline and some calc-alkaline magma series. These rhyolites show a significant negative Eu anomaly with relative enrichment of LREE and LILE(Rb, Ba, Th, U, K) and depletion of Sr, HREE and HFSE(Nb, Ta, Ti, P). These rhyolites also have the characteristics of an A2-type granite, similar to the Miaoergou batholith,which indicates they both were affected by post-orogenic extension. Combining petrological, zircon U-Pb dating and geochemical characteristics of the rhyolites, we conclude that the specific time of ocean-continent transition of the West Junggar is the Late Carboniferous–Early Permian. | XU Shenglin CHEN Xuanhua LI Tingdong SHI Jianjie DING Weicui LI Bing HUANG Penghui ZHANG Yiping ZHANG Yaoyao MA Feizhou | 2019 | Acta Geologica Sinica(English Edition)2019，93，2： | 9 |
| 5 | Enhancing the resolution of seismic data based on the generalized S-transform显示文摘In this paper, we analyze the seismic signal in the time-frequency domain using the generalized S-transform combined with spectrum modeling. Without assuming that the reflection coeffi cients are random white noise as in the conventional resolution-enhanced techniques, the wavelet which changes with time and frequency was simulated and eliminated. After using the inverse S-transform for the processed instantaneous spectrum, the signal in the time domain was obtained again with a more balanced spectrum and broader frequency band. The quality of seismic data was improved without additional noise. | Tian Jianhua Song Wei Yang Feizhou | 2009 | Petroleum Science2009，6，2： | 3 |
| 6 | Functional analysis of three genetic disorder related PITX2 mutants显示文摘The autosome dominant disorders, ring dermoid of the cornea (RDC), iris hypolasia (IH) and Axenfeld-Rieger syndrome (ARS), are allelic disor- ders, as all three can result from mutations of the transcriptional factor PITX2. Among three disorder phenotypes, ARS is the most severe, IH is milder than ARS, and RDC is the mildest. Missense muta- tions of the PITX2 homeodomain identified in RDC (R62H), IH (R84W) and ARS patients (T68P) were introduced into PITX2 cDNA by site-directed mutagenesis. PITX2 mutant proteins expressed in eucaryotic cells were stable and localized to the nu- cleus. Analysis of these mutant PITX2 proteins by DNA-binding shift and transactivation studies dem- onstrated that the R62H had the most activity in both studies, and the R84W still retained somewhat func- tions, whereas the T68P proved to be non-functional. These results are consistent with previous hypothesis that varying amount of residual PITX2 mutant activity could underline the severity of these phenotypes. | WANG Guo LIU Xiaoping PAN Qian LIANG Desheng WU Qianling DAI Heping ZHU Feizhou XIA Kun XIA Jiahui | 2006 | Chinese Science Bulletin2006，51，2： | 3 |
| 7 | miR?31 promotes oncogenesis in intrahepatic cholangiocarcinoma cellsvia the direct suppression of RASA1显示文摘 | Chenghuan Hu Feizhou Huang Gang Deng Wanpin Nie Wei Huang Xi Zeng | 2013 | Experimental and Therapeutic Medicine2013，，5： | 3 |
| 8 | Land-use changes in the small watershed of the Loess Plateau,hilly-gully region, China显示文摘As more and more farmland is converted to forestry, the need for effective decision support regarding the use of land in the fragile ecological environment of the Loess Plateau hilly-gully area. The Luoyugou watershed was chosen as the study area to calculate the single dynamic degree, integrated dynamic degree, and change indexes of land use, as well as the land-use type transition matrix. This was done by interpreting the TM and SPOT images of the Luoyugou watershed in 1986, 1995, and2004 and making statistical analysis. The results of ou statistical analysis show that the conversion of slope farm land to terrace and forest land plays a dominant role in land-use changes in the Luoyugou watershed from 1986 to2004. The land-use changes are mainly driven by popula tion growth, socio-economic development, consume spending, and investment in forest ecology. | Yini Han Jianzhi Niu Feizhou Wu | 2015 | Journal of Forestry Research2015，26，1： | 2 |
| 9 | Preparation and properties of low cost porous titanium by using rice husk as hold space显示文摘The present study demonstrates an effective low cost effective process for the production of porous titanium with 50-60 vol% porosity using 20 wt% rice husk(RH) with the hold spaces in the size ranges of 100-180,180-250,250-380,and 380-550 μm.The analysis of the samples revealed an interconnected pore microstructure consisting of a mixture of coarse channel pores,created during burnout of RH.The compressive strength of the developed samples was in the range of 17-70 MPa and depended strongly on their porosity and pore size.Large amounts of cleavage steps appeared on the brittle fracture surface after compression of the samples.The 3D morphology of porous titanium surface with rice husk sizes of 100-180μm and 380-550μm can be characterized by the micro-hole surface of pore size,and the size of the hole diameter and husk.The developed porous titanium is considered potentially useful in future medical or industrial application of biomass. | Xinsheng Wang Zhenlin Lu Lei Jia Feizhou Li | 2017 | Progress in Natural Science:Materials International2017，27，3： | 2 |
| 10 | Late Paleozoic Element Migration and Accumulation under Intracontinental Sinistral Strike-slip Faulting in the West Junggar Orogenic Belt, NW China显示文摘The migration,accumulation and dispersion of elements caused by tectonic dynamics have always been a focus of attention,and become the basis of tectono-geochemistry.However,the effects of faulting,especially strike-slip faulting,on the adjustment of geochemical element distribution,are still not clear.In this paper,we select the West Junggar Orogenic Belt(WJOB),NW China,as a case study to test the migration behavior of elements under tectonic dynamics.The WJOB is dominated by NE-trending large-scale sinistral strike-slip faults such as the Darabut Fault,the Mayile Fault,and the Baerluke Fault,which formed during the intracontinental adjustment under N-S compression during ocean-continental conversion in the Late Paleozoic.Geochemical maps of 13 elements,Al,W,Sn,Mo,Cu,Pb,Zn,As,Sb,Hg,Fe,Ni,and Au,are analyzed for the effects of faulting and folding on element distribution at the regional scale.The results show that the element distribution in the WJOB is controlled mainly by two mechanisms during tectonic deformation:first is the material transporting mechanism,where the movement of geological units is consistent with the direction of tectonic movement;second is the diffusion mechanism,especially by tectonic pressure dissolution driven by tectonic dynamics,where the migration of elements is approximately perpendicular or opposite to the direction of tectonic movement.We conclude that the adjustment of element distributions has been determined by the combined actions of transporting and diffusion mechanisms,and that the diffusion mechanism plays an important role in the formation of geochemical Au blocks in the WJOB. | WANG Ye CHEN Xuanhua NIE Lanshi DING Weicui WANG Xueqiu XU Shenglin MA Feizhou HAN Lele | 2020 | Acta Geologica Sinica(English Edition)2020，94，6： | 1 |
| 11 | Direct determination of thickness of sea surface microlayer using a pH microelectrode at original location显示文摘 | Zhengbin Zhang Weijun Cai Liansheng Liu Chunying Liu Feizhou Chen | 2003 | Science in China Series B: Chemistry2003，，4： | 1 |
| 12 | Compositional differences among planktonic ciliate communities in four subtropical eutrophic lakes in China显示文摘 | Jing Li Feizhou Chen Zhengwen Liu Kuidong Xu Biying Zhao | 2013 | Limnology2013，，1： | 1 |
| 13 | Genetic Diversity of Eukaryotic Microorganisms in Lake Taihu, a Large Shallow Subtropical Lake in China显示文摘 | Meijun Chen Feizhou Chen Yang Yu Jian Ji Fanxiang Kong | 2008 | Microbial Ecology2008，，3： | 1 |
| 14 | Driving forces shaping phytoplankton assemblages in two subtropical plateau lakes with constrasting trophic status 显示文摘 | ZHANG Xia XIE Ping CHEN Feizhou | 2007 | Freshwater Biology2007，52，： | 1 |
| 15 | Response of the cladoceran community to eutrophication, fish introductions and degradation of the macrophyte vegetation in Lake Dianchi, a large, shallow plateau lake in southwestern China显示文摘 | L1U Guimin LIU Zhengwen CHEN Feizhou | 2013 | Limnology2013，14，2： | 1 |
| 16 | miR-21 regulates triglyceride and cholesterol metabolism in non-alcoholicfatty liver disease by targeting HMGCR显示文摘 | Chuanzheng Sun Feizhou Huang Xunyang Liu Xuefei Xiao Mingshi Yang Gui Hu Huaizheng Liu Liangkan Liao | 2015 | International Journal of Molecular Medicine2015，，3： | 1 |
| 17 | Simulation study of underwater passive navigation system based on gravity gradient显示文摘 | Feizhou Zhang Xiuwan Chen | 2004 | Geoscience and Remote Sensing Symposium2004，，： | 1 |
| 18 | Sea surface pCO2-SST relationships across a cold-corecyclonic eddy: implications for understanding regionalvariability and air-sea gas exchange显示文摘 | CHEN FEIZHOU CAI WEIJUN BENITEZ-NELSON C 2007 | 2007 | Geophysical ResearchLetters2007，34，10： | 1 |
| 19 | Simulation study of un- derwater passive navigation system based on gravity gradient显示文摘 | Feizhou Zhang Xiuwan Chen | 2004 | IEEE2004，5，： | 1 |
| 20 | Structural phase transition in epitaxial perovskite films 显示文摘 | Feizhou H Wells B O | 2004 | Phys Rev B2004，70，23： | 1 |
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