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| 1 | Thermodynamic Analysis and Experimental Investigation into Nonflame Combustion Technology(NFCT) with Thermal Cyclic Carrier显示文摘The utilization of fossil fuels causes serious negative impacts on the environment and human life. To mitigate greenhouse gases and other pollutants, a novel combustion process-the nonflame combustion technology with a thermal cyclic carrier of molten salt is introduced. In this technology, a whole combustion is divided into two steps, i.e., the section of producing oxide and the section of combustion. In the first step, oxygen is separated from air, and pure N2 is simultaneously formed which is easily recovered. In the other step, the fuels react with lattice oxygen in the oxides formed in the first step, and at the same time, thermal energy, CO2 and H2O vapor are produced. It is noted that the CO2 is easily separated from water vapor and ultimately captured. Theoretically, there are no environmental-unfriendly gases such as CO2, NOx and SO2 discharged in the whole combustion process. Some metal oxides scattered into molten salts play the roles of oxygen carriers in the combustion system, and they can constantly charge and discharge oxygen element from air to fuels during the combustion process. A nonflame combustion system with Li2CO3+K2CO3+Na2SO4 as the molten salt system, CH4 as the fuel and CuO as the catalyst was experimentally investigated. The experimental results show that the combustion process proceeded as it was theoretically analyzed, and CO2 with a high volume fraction of 77.0%95.0% and N2 with a high volume fraction of 91.9%99.3% were obtained. The high concentration of CO2 is favorable for capturing and storing subsequently. Therefore, the potential of reducing CO2 emissions of this nonflame combustion technology is huge. | HEFang WANGHua DAIYong-nian | 2004 | Chemical Research in Chinese Universities2004，20，5： | 3 |
| 2 | Devitrification of TeO_2-doped Fluoroaluminate Glass显示文摘玻璃 systemAlF_3-MgF_2-CaF_2-SrF_2-BaF_2-YF_3-TeO_2 (AMCSBY-TeO_2 ) 的结晶化行为被非等温的方法用微分热分析学习。活化能 E 和 Avrami 代表 n 被非等温的方法决定。E 的价值与增加 TeO_2 变化并且当 n 与当眼镜被再热时, Ba_2Te_3O_8, MgTe_2O_5 和 SrTeO_3 分阶段执行,这形成的衍射显示出的 TeO_2.X 光线的增加从 3.65 ~ 1.78 减少时,在 10 摩尔部分 TeO_2 到达最小,这被发现。TeO_2 的增加改变结晶化机制并且改进 fluoroaluminate 玻璃的稳定性。 | Bin TANG Xinqiang YUAN Tianfeng XUE Jiacheng LI Youyu FAN Hefang HU | 2006 | Journal of Materials Science & Technology2006，22，4： | 2 |
| 3 | U-Pb geochronology,geochemistry and tectonic implications ofdiorite from Nangnimsan of Mehe in northern Da Hinggan Mountains显示文摘LA-ICP-MS zircon U-Pb dating indicates that the weighted average age of diorite from Nangnimsan,Mohe in the northern Da Hinggan Mountains in Heilongjiang Province is 516.2±1.7 Ma,as a result of magmatic intrusion of Early Cambrian. Geochemistry analysis indicates that the rocks belong to high-K calc-alkaline series,with low content of SiO_2( 52.24%-53.64%) and high Mg( MgO = 5.67%-6.56%,Mg~#= 61. 05-65. 46).The rocks are characterized by the enrichment of LREE and LILE( e.g. Rb,Ba,Pb),and relative depletion in HREE and HFSE( e.g. Ta,Nb,P,Ti),and with a high content of Sr( 442. 3-622. 3) × 10^(-6),Yb( 2.49-3.42) ×10^(-6) and Y( 25.64-35.49) ×10^(-6),and slightly negative Eu anormaly( δEu= 0.60-0.81). Based on Rb/Sr( 0.15-0.25) and Rb/Nb( 8.27-15.12),it is concluded that the primary magma of diorite was derived from the mixture of the crust and mantle. Combined with background of regional tectonic evolution,it is suggested that diorite was formed in the extensional environment after the collage of the EGM with the Siberian. | YIN Yue WANG Li SUN Xia JIANG Hefang LI Liang | 2017 | Global Geology2017，20，4： | 2 |
| 4 | 查看详情显示文摘 | Hefang W Ligong C Guoyi B Dezhi L Yang L Xilong Y Yuecheng Z Junde X | | 0，，： | 1 |
| 5 | Analysis on sensitivity and landscape ecological spatial structure of site resources显示文摘This article establishes a set of indicators and standards for landscape ecological sensitivity analysis of site resources by using the theories and approaches of landscape ecology. It uses landscape diversity index(H), evenness(E), natural degree(N), contrast degree(C) to study spatial structure and landscape heterogeneity of site resources and thus provides a qualitative-quantitative evaluation method for land planning and management of small, medium scale areas. The analysis of Yantian District, Shenzhen of China showed that Wutong Mountain belonged to high landscape ecological sensitivity area, Sanzhoutian Reservoir and Shangping Reservoir were medium landscape sensitivity area and high ecological sensitivity area; Dameisha and Xiaomeisha belonged to medium sensitivity area caused by the decline of natural ecological areas. Shatoujiao, Yantian Pier belonged to low sensitivity area but urban landscape ecological development had reshaped and influenced their landscape ecological roles in a great extent. Suggestions on planning, protection goals and development intensity of each site or district were raised. | LIZhen HEFang 等 | 2003 | Journal of Environmental Sciences2003，15，2： | 1 |
| 6 | A continuous process for the synthesis of homopiperazine catalyzed by Cu-based catalysts 显示文摘 | Wang Hefang Chen Ligong Luan Dezhi | 2006 | Reaction Kinetics and Catalysis Letters2006，，2： | 1 |
| 7 | 显示文摘 | Cao Guoxi Lin Fengying Hu Hefang | 2003 | Non- Cryst Solids2003，326，327： | 1 |
| 8 | A new fluorogermanate glass显示文摘 | CAO Guoxi LIN Fengying HU Hefang | 2003 | J Non-Cryst Solids2003，，： | 1 |
| 9 | Evaluation of Spectroscopic Properties of Yb^3+ in Tetraphosphate Glass显示文摘 | Long Zhang Hefang Hu | 2001 | Journal of Non-Crystalline Solids2001，292，13： | 1 |
| 10 | Effect of tellurium dioxide on fluoroalunimante glasses显示文摘 | FAN Youyu YUAN Xinqiang HU Hefang | | J0，，： | 1 |
| 11 | X4 Modules represent a new family of carbohydrate binding modules that display novel properties 显示文摘 | DAVID N BOLAM HEFANG X | 2004 | Biol Chem2004，279，22： | 1 |
| 12 | Municipal solid waste (MSW) as a renewable source of energy: current and future practices in China 显示文摘 | CHENG Hefang HU Yuan | 2010 | Bioresource Technology2010，101，11： | 1 |
| 13 | Discrimination of saccharides with a fluorescent molecular imprinting sensor array based on phenylboronic acid functionalized mesoporous silica显示文摘 | Tan Jin Wang Hefang | 2009 | Anal Chem2009，81，13： | 1 |
| 14 | Requirements of shrimp, Penaeus chinensis O'sbeck for potassium, sodium, magnesium and iodine显示文摘 | Liu Fayi Li Hefang | 1995 | Chinese Journal of Oceanollgy and Limnollgy1995，13，2： | 1 |
| 15 | Geochronology,geochemistry and Hf isotope of monzogranite in Niubiziliang of Qinghai显示文摘Zircon U-Pb dating, whole-rock geochemical analyses and Hf isotope are undertaken for the monzogranite in Niubiziliang area with the aim of constraining its formation time,petrogenesis and the regional tectonic setting. The zircons from monzogranite are euhedral-subhedral in shape,and display rhythm growth zoning,indicating a magmatic origin. LA-ICP-MS zircon U-Pb dating indicates the monzogranite formed most probably in the Late Devonian( 359. 0 ± 2. 6 Ma). The monzogranite has Si O2= 74. 69%--76. 11%,Al2O3=12. 07%--12. 81%,Na2 O + K2 O = 8. 24%--8. 70%,Na2 O / K2 O = 0. 60--0. 68,A / CNK > 1,which shows that it belongs to high-Si and high-K weakly peraluminous calc-alkaline series. The monzogranite is enriched in K,Rb,Th( LILEs) and La,Ce,Sm,Nd( LREEs); and depleted in Ba,U( HREEs) and Ta,Nb( HFSEs).Their zircon εHf( t) values range from 1. 21 to 3. 46,in response to their two-stage Hf model ages( TDM2) ranging from 1 034 Ma to 1 159 Ma,respectively,indicating that the primary magma was derived from the young crust in Meso-Neoproterozoic. Combined with the regional geological evolution background,it is considered that the Niubiziliang monzogranite formed the closure of North Qaidam ocean,which was the stretching stage product after the collision between Qaidam block and Qilian block. | JIANG Hefang SUN Fengyue LI Liang LI Ruihua YU Lu WANG Fei SHEN Dali | 2016 | Global Geology2016，19，3： | 1 |
| 16 | Three-dimensional numerical simulation of compound meandering open channel flow by the Reynolds stress model 显示文摘 | Jing Hefang Guo Yakun Li Chunguang | 2009 | International Journal for Numerical Methods in Fluids2009，59，： | 1 |
| 17 | A la-boratory study of agricultural crop residue combustion in Chi-na: emission factors and emission inventory 显示文摘 | ZHANG Hefang YE Xingnan CHENG Tiantao | 2008 | AtmosphericEnvironment2008，42，36： | 1 |
| 18 | Large-scale screening of disease model through ENU mutagenesis in mice显示文摘Manipulation of mouse genome has merged as one of the most important approaches for studying genefunction and establishing the disease model because of the high homology between human genome and mouse genome. In this study, the chemical mutagen ethylnitrosourea (ENU) was employed for inducing germ cell mutations in maleC57BL/6J mice. The first generation (G1) of the backcrossof these mutated mice, totally 3172, was screened for abnor-mal phenotypes on gross morphology, behavior, learning and memory, auditory brainstem response (ABR), electrocardio-gram (ECG), electroretinogram (ERG), flash-visual evoked potential (F-VEP), bone mineral density, and blood sugarlevel. 595 mice have been identified with specific dominantabnormalities. Fur color changes, eye defects and hearing loss occurred at the highest frequency. Abnormalities related to metabolism alteration are least frequent. Interestingly, eye defects displayed significant left-right asymmetry and sexpreference. Sex preference is also observed in mice with ab-normal bone mineral density. Among 104 G1 generation mutant mice examined for inheritability, 14 of them have been confirmed for passing abnormal phenotypes to their progenies. However, we did not observe behavior abnormali-ties of G1 mice to be inheritable, suggesting multi-gene con-trol for these complicated functions in mice. In conclusion, the generation of these mutants paves the way for under-standing molecular and cellular mechanisms of these ab-normal phenotypes, and accelerates the cloning of disease-related genes. | HEFang WANGZixing ZHAOJing BAOJie DINGJun RUANHaibin XIEQing ZHANGZuoming GAOXiang | 2003 | Chinese Science Bulletin2003，48，24： | 1 |
| 19 | An improved mixed total least squares method for strain inversion from distance changes显示文摘Based on the deficiency of the traditional total least squares method(TLS) in the field of geodetic inversion, the mixed error characteristics of the errors in variables(EIV) model were analyzed by considering the distance azimuth measurement error in strain inversion from distance changes, which resulted in the improved mixed total least squares method(IMTLS) with generalized mixed EIV model. Finally, three comparison schemes of strain inversion from distance changes using measured data were implemented to test the proposed method. The results showed that the IMTLS method outperformed the traditional least squares(LS) and TLS methods in parameters estimation, accuracy evaluation, actual EIV model characteristics, and five strain eigenvalues. | Zhiping Liu Sida Li Hefang Bian | 2016 | Geodesy and Geodynamics2016，7，5： | 1 |
| 20 | Develop-mentandutilizationofthestatusquoanddevelopmentofwildjujuberesources[J]显示文摘 | ZHANGJianguo(张建国) HEFang(何方) | | 山西果树0，，： | 1 |
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