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| 1 | A Rare Allele of GS2 Enhances Grain Size anc Grain Yield in Rice显示文摘谷物尺寸决定谷物重量并且影响谷物质量。调整谷物尺寸的几主要量的特点 loci (QTL ) 被克隆;然而,我们调整米饭谷物的尺寸的内在的机制的理解仍然保持碎片。这里,我们报导克隆和主导的 QTL 的描述,染色体 2 上的谷物尺寸(GS2 ) 编码调整生长的因素 4,一个 transcriptional 管理者。GS2 本地化到原子核并且可以充当抄写使活跃之物。影响 microRNA 的有约束力的地点的 GS2 的一个稀罕变化, OsmiR396c,原因提高了 GS2/OsGRF4 的表示。GS2 表示的增加导致更大的房间和房间的增加的数字,它因此提高谷物重量和产量。进米饭栽培变种的 GS2/OsGRF4 的这稀罕等位基因的介绍能显著地提高谷物重量和增加谷物产量,用在引起产量很高的米饭变化的可能的应用。 | Jiang Hu Yuexing Wang Yunxia Fang Longjun Zeng Jie Xu Haiping Yu Zhenyuan Shi Jiangjie Pan Dong Zhang Shujing Kang Li Zhu Guojun Dong Longbiao Guo Dali Zeng Guangheng Zhang Lihong Xie Guosheng Xiong Jiayang Li Qian Qian | 2015 | Molecular Plant2015，8，10： | 57 |
| 2 | Control of Rice Embryo Development, Shoot Apical Meristem Maintenance, and Grain Yield by a Novel Cytochrome P450显示文摘被子植物种子通常由二主要部分组成:胚胎和内乳。然而,分子的机制 underlyingembryo 和内乳发展仍然保持大部分未知,特别地在米饭,模型谷物。这里,我们报导 identificationand 米饭巨人胚胎(GE ) 基因的功能的描述。GE 的变化在种子导致了一个大胚胎,它被胚鳞房间的过多的扩大引起。embryonic 以后 growthof ge 幼苗严重地由于有缺点的射击被禁止顶端的分裂组织(SAM ) 维护。基于地图的克隆表明 thatGE 编码对 endoplasmic 蜂窝胃局部性的 CYP78A 亚科 P450 monooxygenase。GE 在 scutellar 上皮主要被表示,在胚胎和内乳之间的接口区域。Overexpressionof GE 支持了细胞增长并且提高了米饭植物生长和谷物产量,但是减少了胚胎尺寸,建议 GE 为协调米饭胚胎和内乳开发是批评的。而且,转基因的 Arabidopsis 植物 overexpressing AtCYP78A10,一个 GE 相当或相同的事物,也生产的更大的种子,在一起调整种子 development.Taken 为 P450s 的 CYP78A 亚科暗示一个保存角色,我们的结果显示 GE 在调整胚胎发展和 SAM maintenance.Key 词起关键作用: | Weibing Yang Mingjun Gao Xin Yin Jiyun Liu Yonghan Xu Longjun Zeng Qun Li Shubiao Zhang Junmin Wang Xiaoming Zhang Zuhua He | 2013 | Molecular Plant2013，6，6： | 16 |
| 3 | Calcified roasting-acid leaching process of vanadium from low-grade vanadium-containing stone coal显示文摘The low-grade vanadium-containing stone coal used in this experiment was collected from Wuxi Country, Chongqing City, China. The experiment focused on the vanadium recovery from roasted residue through optimizing the process conditions of an effective and environmentally-friendly technology, named calcified roasting-sulfuric acid leaching technology. By single-factor experiments and orthogonal experiments, the effects of roasting temperature, roasting time, sulfuric acid concentration and leaching time on the leaching ratio of vanadium were analyzed. The results showed that the leaching ratio of vanadium reached 85.5% under the proper technological conditions of roasting temperature=950℃, roasting time=4 h, 40% concentration of sulfuric acid and leaching time=6 h. | WANG Taiying XU Longjun LIU Chenlun ZHANG Zhaodi | 2014 | Chinese Journal Of Geochemistry2014，33，2： | 14 |
| 4 | Response spectra for nuclear structures on rock sites considering the near-fault directivity effect显示文摘Near-fault ground motions, potentially with large amplitude and typical velocity pulses, may signifi cantly impact the performance of a wide range of structures.The current study is aimed at evaluating the safety implications of the near-fault effect on nuclear power plant facilities designed according to the Chinese code.To this end, a set of near-fault ground motions at rock sites with typical forward-directivity effect is examined with special emphasis on several key parameters and response spectra.Spectral comparison of the selected records with the Chinese and other code design spectra was conducted.The bi-normalized response spectra in terms of different corner periods are utilized to derive nuclear design spectra.It is concluded that nuclear design spectra on rock sites derived from typical rupture directivity records are significantly influenced both by the earthquake magnitude and the rupture distance.The nuclear design spectra specified in the code needs to be adjusted to reflect the near-fault directivity effect of large earthquakes. | Xu Longjun Yang Shengchao Xie Lili | 2010 | Earthquake Engineering and Engineering Vibration2010，9，3： | 9 |
| 5 | Effect of manganese tailings on capsicum growth显示文摘The impact of Mn in manganese waste rocks and electrolytic manganese residues on the growth of capsicum was studied via pot experiments. The product yield and manganese nutrition were mainly evaluated in this study. The results showed that the ingredients of manganese tailings were beneficial to the increase of chlorophyll contents in the capsicum. The chlorophyll contents were raised by 12.6%–28.7%, 7.18%–12.1% and 9.70%–13.7%, respectively, corresponding to the idiophase of flower bud, the initial florescence and the fruit expansion stage. Moreover, the additive significantly improved capsicum’s economic features, such as its height, stem width, fruit length and weight and the yield of fresh fruit. These parameters were raised by 11.9%–25%, 18.6%–25.6%, 20.7%–35.4%, 10.4%–27.6% and 11.4%–65.7%, respectively. At the meantime, the manganese taken up by stems and leaves of the capsicum also increased by 11.7%–23.4% and 33.9%–62.8%, respectively. The manganese which remained in the soil was less than that in the original soil due to plant absorption and rainfall loss in pot experiments. It is concluded that both manganese residues and the mixture of manganese waste rock and manganese residue could indeed be made full use of as a fertilizer which can provide Mn nutrition. | ZHOU Zhengguo XU Longjun XIE Jinlian LIU Chenglun | 2009 | Chinese Journal Of Geochemistry2009，28，4： | 9 |
| 6 | Fractal-like adsorption kinetics of Pb^(2+) in rocks显示文摘The adsorption kinetics of Pb2+ in rocks has been studied using ion selective electrodes and atomic absorption spectrophotometer. The results showed that the adsorption process is a fractal-like reaction. The adsorption rate was relatively high before 30 minutes, and then dropped. The saturated adsorption capacity (a) of Pb2+ and kinetic parameters (b, α , D and k) increased with increasing initial concentrations of Pb2+. These parameters (except a) decreased while Na+ was present in the solution. Furthermore, the smaller the rocks were in grain size, the bigger these kinetic parameters would be, though the parameter a was almost constant. | XU Longjun ZHOU Zhengguo LIU Chenglun XIAN Xuefu | 2008 | Chinese Journal Of Geochemistry2008，27，2： | 7 |
| 7 | Fractal desulfurization kinetics of high-sulfur coal显示文摘The pore structure characteristics of high-sulfur coal from Wansheng in Chongqing have been studied by a nitrogen adsorption method (BET). The effects of grinding and pre-treating with nitric acid on the inorganic sulfur content of coal have been investigated. Organic sulfur in coal pretreated with nitric acid was desulfurized by using propylene-glycol-KOH (PG-KOH). Fractal kinetic properties of these two desulfurization procedures were investigated by using fractal geometric theory. The results show that both the specific surface area and pore volume increased with the decrease in particle diameter. The microspore surface of coal had fractal characteristics; the fractal dimension was 2.48. The sulfur content decreased with the decrease in particle diameter by grinding. After pretreatment with nitric acid, the desulfurization ratio (DFR) of inorganic sulfur increased to over 99% and the DFR of total sulfur to over 70%. The desulfurization procedure of inorganic sulfur had fractal kinetic characteristics; its reactive fractal dimension was 2.94. The organic sulfur desulfurization procedure by PG-KOH was also tallied with fractal kinetic properties; the reactive fractal dimension was 2.57. The effect of temperature on the desulfurization ratio of organic sulfur can be described with an Arrhenius empirical equation. The rate constant, pre-exponential factor and the activation energy of the reaction increased with the decrease in particle diameter. | Xu Longjun Peng Tiefeng Zhang Dingyue Zhang Fukaia | 2012 | International Journal of Mining Science and Technology2012，22，1： | 7 |
| 8 | Leaching process and kinetics of manganese in low-grade manganese ore显示文摘Manganese was extracted from leaching low-grade manganese ore in sulfuric acid medium. The effects of granule diameter, leaching time, liquid/solid ratio (V/W) and the concentration of sulfuric acid were investigated through orthogonal and single factor experiments. The experimental results showed that the optimal leaching conditions are, size of 0.054mm, 120 minutes of reaction time, 3(V/W) of liquid/solid ratio and 30% of the concentration of sulfuric acid (g/g). Under those conditions, the leaching efficiency is 96.73%. The kinetics of the leaching process is in accordance with the characteristics of fractal reaction. | XIE Chao XU Longjun PENG Tiefeng CHEN Kun ZHAO Jing | 2013 | Chinese Journal Of Geochemistry2013，32，2： | 5 |
| 9 | Fractal kinetic characteristics for dissolving and leaching processes of strontium residue显示文摘The pore structural characteristics of strontium residue were studied with the N2 adsorption method(ASAP2010).The kinetic properties concerning dissolving and leaching strontium waste were described by determining the concentrations of Sr2+,Ba2+ and soluble sulphides in solutions.The results showed that the specific surface area and pore volume increased with decreasing granule diameter,and the micropore surface of the residue was fractal.In the dissolving and leaching processes of strontium residue,soluble ion concentrations increased with decreasing granule diameter of the residue,and the reaction dimension was lower than the fractal dimension of pore surface.Sr2+ and soluble sulphide concentrations significantly exceeded the defined standard values,while Ba2+ concentrations did not,either in the dissolving or leaching solutions.In addition,dissolving and leaching reactions selectively occurred on the micropore surface of strontium residue. | XU Longjun WANG Xingmin QU Ge ZHOU Zhengguo YUE Fenhua | 2010 | Chinese Journal Of Geochemistry2010，29，4： | 4 |
| 10 | Leaching of manganese residue for the preparation of trimanganese tetroxide with a high surface area显示文摘The accumulation of electrolytic manganese residue (EMR) has become a serious problem and its recycling will be of great benefit to protect the environment and assist sustainable development. The reusing method was conducted by leaching EMR with sulfuric acid and the optimal leaching condition was 1:3 (g/g) as the ratio of solid to liquid with 20% (g/g) H2SO4 , heating at 90 ℃ for 3 hours, which aims at extracting Mn in a sulfuric acid medium. The produced MnSO4 solution was precipitated by adding alkali and oxidized in aqueous phase. The oxidized products were characterized by various techniques, including X-ray powder diffraction (XRD), Fourier transform infrared (IR) spectrometry, vibrating sample magnetometry (VSM), with Brunauer-Emmett-Teller (BET) specific surface area instrument and laser particle size analyzer. The final products were confirmed to be a single-phase Mn3O4 . | PENG Tiefeng XU Longjun WANG Xingmin | 2013 | Chinese Journal Of Geochemistry2013，32，3： | 3 |
| 11 | Prevalence, risk factors and impact of gastroesophageal reflux disease symptoms: A population-based study in South China显示文摘 | Minhu Chen Lishou Xiong Huixin Chen Angao Xu Longjun He Pinjin Hu | 2005 | Scandinavian Journal of Gastroenterology2005，，7： | 2 |
| 12 | Effects of temperature and pressure differences on water seepage in breccia显示文摘Effects of temperature and pressure differences on water seepage in breccia were investigated by using the physicochemical seepage instrument.The results show that the relationship of flow and pressure differences can be expressed by a linear equation,and the seepage coefficient is linearly correlated with temperature.The relation-ship between seepage flow and temperature could be described with the linear equation.The constant and tempera-ture seepage coefficient showed a linear relation with pressure.Binary quantitative equation for the seepage flow,temperature and pressure was obtained,and explained with experimental data and theoretical analysis. | XU Longjun WANG Xingmin XIAN Xuefu | 2012 | Chinese Journal Of Geochemistry2012，31，3： | 2 |
| 13 | Sr speciation in producing SrCO_3 with celestite显示文摘Strontium speciation transferring in strontium residue and mixing strontium ore are investigated with extracting experiment, X-ray powder diffraction(XRD), X-ray fluorescence spectrometer(XRF) and Atomic Absorption Spectroscopy(AAS). The results show that there are strontium carbonate, strontium sulfate, strontium sulfide, and a little amount of strontium silicate and strontium ferrite in strontium residue. Impurities in strontium residue mainly contain carbonate and oxide of calcium, iron, magnesium and aluminum etc. The amount of strontium sulfide in strontium residue is larger than that in strontium ore. And a little strontium silicate and strontium ferrite are found in strontium ore. It is concluded that acid soluble method is used firstly in the process of producing strontium carbonate from mixing strontium ore. In addition, mechanical smash method and surface active treatment to strontium samples are beneficial to the ratio-leaching increase of strontium. The research achievement helps to save energy and decrease pollutants emission in strontium processing industry. | LIU Chenglun ZHANG Li XU Longjun SU Zhimin XIE Taiping WANG Yuan | 2014 | Chinese Journal Of Geochemistry2014，33，3： | 2 |
| 14 | PKinetics analysis of the enzymatic hydrolysis of cellulose from straw stalk显示文摘The effects of several parameters on the simultaneous saccharification and fermentation of straw stalk for ethanol fuel production were investigated on the basis of orthogonal experiments. The parameters include temperature and time of fermentation, quantity and proportion of yeast inoculation, as well as cellulase dosage. An ethanol yield of 0.183 g/g was obtained from the straw stalk pretreated with diluted acid under determined optimum conditions. These conditions were: fermentation temperature: 38℃; fermentation time: 72 h; yeast inoculation quantity: 15%; yeast inoculation proportion: 2:1; and cellulose enzyme dosage: 20 U/g. The relationship between ethanol concentration c and fermentation time t is presented as follows, c=abt/(1+bt). The rate constant k of straw stalk hydrolysis by the cellulose enzyme depends on hydrolysis time, as described by k=k1t-h. Therefore, straw stalk hydrolysis reaction by the cellulose enzyme is fractal-like. | CHEN Kun XU Longjun BI Zhiming FU Zhilei | 2013 | Chinese Journal Of Geochemistry2013，32，1： | 1 |
| 15 | Depuration of chrom ium wastwater with coal显示文摘 | XU LONGJUN LIU CHENGLUN XIAN XUEFU | 1998 | Journal of Chongqing University1998，21，2： | 1 |
| 16 | A model of steel frame for simulating connection fractures 显示文摘 | Liu Hongbo Xu Longjun Li Shuang Shao Yongsong | 2011 | Key Engineer- ing Materials2011，425，： | 1 |
| 17 | Preparation of strontium ferrite from strontium residue显示文摘Strontium ferrite was prepared from Strontium Waste Residue (SWR) as a material. Strontium chloride was obtained by leaching SWR with ammonia chloride, and then SrCl2 was converted to SrCO3. Strontium ferrite (SrFe12O19) was formed by roasting the mixture of SrCO3 and FeCl3 in a proper proportion. The structure and magnetic susceptibility of strontium ferrite were investi-gated. The results showed that strontium conversion ratio increased with decreasing SWR grain diameter. The largest ratio was pre-sented when n(NH4Cl/Sr) was 3.6. What is more, the conversion process coincided with the kinetic characteristics of fractal reaction. The magnetic susceptibility of strontium ferrite decreased with increasing Fe3+/Sr2+ mole ratio and pH. SrFe12O19 exhibited face-centered and cubic closely-packed hexagonal structures. There were the strong diffraction peaks of Fe2O3 in the X-ray diffracto-gram of strontium ferrite. Strontium recovery ratio was 87.0%. | LIU Chenglun XU Longjun YANG Xueyan PENG Tiefeng REN Jianjun | 2012 | Chinese Journal Of Geochemistry2012，31，1： | 1 |
| 18 | Prepa- ration of magnetic activated carbon and adsorption prop- erties for KMnO4 显示文摘 | Xie Taiping Xu Longjun Liu Chenglun | 2012 | Scientia Sinica Chimica2012，42，8： | 1 |
| 19 | Follow-Up of High-Intensity Focused Ultrasound Treatment for Patients with Hepatocellular Carcinoma显示文摘 | Guoliang Xu Guangyu Luo Longjun He Jianjun Li Hongbo Shan Rong Zhang Yin Li Xiaoyan Gao Shiyong Lin Guobao Wang | 2011 | Ultrasound in Medicine & Biology2011，，12： | 1 |
| 20 | Safety culture assessment of petroleum enterprises based on SMART显示文摘This paper introduces an improved fuzzy comprehensive evaluation model specially designed for the safety culture assessment of petroleum enterprises. The model is established based on the authors' years of experience in this field. The index system of the safety assessment mentioned herein is based on SMART safety culture principles, covering safety material, safety behavior, safety system, safety belief, persistence of safety, and openness of safety. The proposed system also includes the safety material culture, in which on-the-spot analysis of the key factors of safety culture is conducted together with duty consultants. All the fuzzy membership indexes and their degrees were weighed and calculated with the final evaluation results, presented in accordance with the analytic hierarchy process. All the safety culture statuses of petroleum enterprises Z, S, and C were then incorporated into detailed analysis. The results of the application confirm that the levels of safety culture follow the order of Z petroleum enterprise | CHEN Kun XU Longjun YANG Rui BI Zhiming | 2013 | Chinese Journal Of Geochemistry2013，32，3： | 1 |
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