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International Journal of Minerals,Metallurgy and Materials 2011年第2期18卷 144-149页

作者： Fu-ping Tang Zhen Li Xiao-feng Wang ben-wen Chen peng Fei Anshan Iron ＆ steel Group Company Anshan 114014 China

A novel fine inclusion removal technology was put forward with dispersed in-situ heterophases induced by the composite sphere explosive reaction. A composite sphere with this function was designed and prepared using a laboratory scale batch-type balling disc （at 12 r/min）, and the composite sphere was fed at the end of the RH refining process. The results indicate that inclusions in the IF molten steel can be removed effectively by feeding composite spheres in RH ladle. Compared with conventional inclusion removal technology, using this novel technology, the amount of oxide inclusions can be decreased to a lower level and the inclusion size becomes finer, the total oxygen content in the as-cast slab can approach 5×10？6, and the cost per ton of steel produced can be reduced by 5-12 Yuan RMB.

关键词： IF steel refining bubbles slags filtration inclusions

Complete stabilization of severely As-contaminated soil by a simple H2O2 pre-oxidation method combined with non-toxic TMT-15 and FeCl3·6H2O

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International Journal of Minerals,Metallurgy and Materials 2019年第9期26卷 1105-1112页

作者： Chang-sheng Yue ben peng Wei Tian Guang-hua Lu Gui-bo Qiu Mei Zhang Central Research Institute of Building and Construction Co. Ltd.Metallurgical Corporation of China Group (MCC Group)Beijing 100088China National Engineering Research Center for Industrial Environmental Protection Beijing 100088China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China

The stabilization of severely As-polluted soil has been a challenge, especially for the extremely toxic As(Ⅲ) contaminants. In this study, soil with a high As concentration(26084 mg/kg) was availably stabilized by a H2O2 pre-oxidation assisted TMT-15(Na3S3C3N3 solution with a mass fraction of 15%) and FeCl3·6 H2O stabilization method. The results showed that the combination of the two stabilizers(i.e., TMT-15 and FeCl3·6 H2O) presented a better stabilization behavior than either stabilizer used individually. The use of the H2O2 pre-oxidation assisted TMT-15 and FeCl3·6 H2O stabilization approach not only converted the As(Ⅲ) to As(Ⅴ) but also reduced the toxic leaching concentration of As to 1.61 mg/L, which is a safe level, when the additions of TMT-15 and FeCl3·6 H2O were 2 mL and 0.20 g, respectively. Thus, using only a simple H2O2 pre-oxidation to combine clean stabilization with non-toxic stabilizers TMT-15 and FeCl3·6 H2O could render the severely As-contaminated soil safe for disposal in a landfill.

关键词： severely As-contaminated soil non-toxic stabilizers combining stabilization pre-oxidation

Extraction and separation of nickel and cobalt from saprolite laterite ore by microwave-assisted hydrothermal leaching and chemical deposition

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International Journal of Minerals,Metallurgy and Materials 2013年第7期20卷 612-619页

作者： Yan Zhao Jian-ming Gao Yi Yue ben peng Zai-qing Que Min Guo Mei Zhang State Key Laboratory of Advanced Metallurgy School of Metallurgical and Ecological Engineering University of Science and Technology Beijing China Metallurgical Group Corporation

Extraction and separation of nickel and cobalt from saprolite laterite ore were studied by using a method of microwave-assisted hydrothermal leaching and chemical deposition. The effects of leaching temperature and time on the extraction efficiencies of Ni2＋ and Co2＋ were investigated in detail under microwave conditions. It is shown that the extraction efficiencies of Ni2＋ and Co2＋ from the ore pre-roasted at 300℃ for 5 h were 89.19% and 61.89% when the leaching temperature and time were about 70℃ and 60 min, respectively. For the separation process of Ni and Co, the separation of main chemical components was performed by adjusting the pH values of sulfuric leaching solutions using a NaOH solution based on the different pH values of precipitation for metal hydroxides. The final separation efficiencies of Ni and Co were 77.29% and 65.87%, respectively. Furthermore, the separation efficiencies of Fe of 95.36% and Mg of 92.2% were also achieved at the same time.

关键词： laterites hydrometallurgy nickel metallurgy cobalt metallurgy microwave heating leaching chemicaldeposition

Assessment of T Cell Activation in a Mouse Model of Traumatic Facial Nerve Injury

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Journal of Otology 2010年第2期5卷 68-75页

作者： QUAN Shi-ming peng ben-gang GAO Zhi-qiang Department of Otorhinolaryngology Beijing Ji Shui Tan HospitalBeijing 100035China Department of Otorhinolaryngology Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China

Objective To investigate T cell activation following facial nerve axotomization and latent neuroimmunologic mechanisms in traumatic facial *** A murine model of facial nerve transaction was *** from cervical and mesenteric lymph nodes in BABL/c mice at specific times were collected and expression rates of CD69 on T cells were assessed by flow *** Infiltrating T cells were detected around the facial neurons in the facial nerve nucleus in mice whose facial nerve was *** staining showed recruitment of activated T *** days post-facial nerve transection,the expression rate of CD69 on T cells from cervical draining lymphoid nodes(CDLNs) was significantly different from that on T cells from mesenteric lymph nodes(MLNs)(P =0.0457),whereas the latter was similar to that in animals undergoing sham surgeries and that in blank control animals(p= 0.2817 and 0.2724,respectively).Two weeks post-nerve transection,the T cell CD69 expression rate from CDLNs remained at a higher level and than that in the sham-operation animals(p= 0.0007).At two weeks,CD69 expression rate on T cells from MLNs was also up-regulated and different compared with the sham-operation animals and with itself at three days post-operation(p= 0.0082 and 0.0133,respectively).Conclusion T cells appear to be activated and up-regulated in CDLNs following facial nerve *** is even evidence of T cell activation in MLNs at 2 weeks post-nerve *** suggestes an alteration of immune response from local to general immunity in the acute stage of facial nerve trauma,which may help coordinating and controlling the scales and orientation of the neuroimmune response during the pathogenesis and progression of facial nerve trauma.

关键词： facial nerve T cell CD69 injury Neuroimmunomodulation

A cluster-plus-glue-atom composition design approach designated for multi-principal element alloys

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Rare Metals 2022年第11期41卷 3839-3849页

作者： Xuan Liu Hui-Bin Ke Liang Wang Yao-Jian Liang Lin-Jing Wang ben-peng Wang Lu Wang Qun-Bo Fan Yun-Fei Xue School of Materials Science and Engineering Beijing Institute of TechnologyBeijing100081China Institute of Advanced Structure Technology Beijing Institute of TechnologyBeijing100081China

Multi-principal element alloys(MPEAs)have shown extraordinary properties in different ***,the composition design of MPEAs is still challenging due to the complicated interactions among principal elements(PEs),and even more challenging with precipitates *** can be either beneficial or detrimental in alloys,thus it is important to control precipitates formation on purpose during alloy *** this work,cluster-plus-glue-atom model(CGM)composition design method which is usually used to describe short-range order in traditional alloys has been successfully extended to MPEAs for precipitation *** key challenge of extending CGM to MPEAs is the determination of center atom since there are no solvent or solute in *** has found that the element type of center atom was related not only with chemical affinity,but also with atomic volume difference in MPEAs,which has inevitable effect on atomic *** on experimental data of MPEAs with precipitates,it was found that elements with either stronger chemical affinity or larger volume difference with other PEs would occupy the center site of ***,a cluster index(P_(C)),which considers both chemical affinity and atomic volume factors,was proposed to assist the determination of center atom in *** on the approach,a solid-solution Zr-Ti-V-Nb-Al BCC alloy was obtained by inhibiting the precipitation,while precipitation-strengthened Al-Cr-FeNi-V FCC alloy and Al-Co-Cr-Fe-Ni BCC alloy were designed by promoting the *** experimental results demonstrated that the approach could provide a relatively simple and accurate predication of precipitation and the compositions of precipitations were in line with PEs in cluster in *** research may open an effective way for composition design of MPEAs with desired phase structure.

关键词： Multi-principal element alloy(MPEA) Composition design Phase structure Cluster-plus-glue-atom model(CGM)

Expression of the Grifola frondosa Trehalose Synthase Gene and Improvement of Drought-Tolerance in Sugarcane （Saccharum officinarum L.）

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Journal of Integrative Plant Biology 2006年第4期48卷 453-459页

作者： Shu-Zhen Zhang ben-peng Yang Cui-Lian Feng Ru-Kai Chen Jing-Ping Luo Wen-Wei cai Fei-Hu Liu State Key Laboratory of Tropical Crop Biotechnology Chinese Academy of Tropical Agricultural Sciences Haikou 571101 China Institute of Tropical Biotechnology Chinese Academy of Tropical Agricultural Sciences Haikou 571101 China Key Laboratory of Ecophysiology and Genetic Improvement for Sugarcane Ministry of Agriculture Fuzhou 350002 China College of Life Sciences Yunnan University Kunming 650091 China

Trehalose Is a nonreduclng dlsaccharlde of glucose that functions as a protectant In the stabilization of blologlcal structures and enhances stress tolerance to abiotic stresses in organisms. We report here the expression of a Grlfola frondosa trehalose synthase （TSase） gene for Improving drought tolerance In sugarcane （Saccharum offlclnarum L.）. The expression of the transgene was under the control of two tandem copies of the CaMV35S promoter and transferred Into sugarcane by Agrobacterium tumefaciens EHA105. The transgenlc plants accumulated high levels of trehalose, up to 8.805-12.863 mg/g fresh weight, whereas It was present at undetectable level in nontransgenlc plants. It has been reported that transgenlc plants transformed with Escherlchla coil TPS （trehalose-6-phosphatesynthase） and/or TPP （trehalose-6-phosphate phosphatase） are severely stunted and have root morphologlc alterations. Interestingly, our transgenlc sugarcane plants had no obvious morphological changes and no growth Inhibition in the field. Trehalose accumulation in 35S-35S：TSase plants resulted In In- creased drought tolerance, as shown by the drought and the drought physiological Indexes, such as the rate of bound water/free water, plasma membrane permeability, malondlaldehyde content, chlorophyll a and b contents, and activity of SOD and POD of the excised leaves. These results suggest that transgenlc plants transformed with the TSase gene can accumulate high levels of trehalose and have enhanced tolerance to drought.

关键词： drought tolerance Grifola frondosa Saccharum officinarum trehalose synthase gene.

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物流外包中的冲突分析及解决机制

商业经济与管理 2008年第8期 17-21页

作者：彭本红南昌航空大学经济管理学院江西南昌330063

物流外包中的冲突不涉及到根本利益的对抗,这种冲突在物流运营过程中普遍存在。文章分析了物流外包冲突的机理,建立了一个以物流集成商为中心的物流外包冲突分析模型,并进行了稳定性分析,找出了解决方案,最后提出了物流外包冲突的解决机... 详细信息

物流外包中的冲突不涉及到根本利益的对抗,这种冲突在物流运营过程中普遍存在。文章分析了物流外包冲突的机理,建立了一个以物流集成商为中心的物流外包冲突分析模型,并进行了稳定性分析,找出了解决方案,最后提出了物流外包冲突的解决机制:协商机制和激励机制。

关键词：冲突分析物流外包物流集成

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环境健康问题的法律规制

东北大学学报（社会科学版） 2012年第3期14卷 239-244页

作者：彭本利中山大学法学院广东广州510275 玉林师范学院法商学院广西玉林537000

我国环境污染损害健康的事件频发,环境健康问题日趋严重,成为影响经济发展和社会稳定的重大问题。我国政府向来重视环境健康问题,但是环境健康问题的法律规制仍存在诸多不足,如环境与健康孤立立法、环境健康影响评价的范围有限、缺乏环... 详细信息

我国环境污染损害健康的事件频发,环境健康问题日趋严重,成为影响经济发展和社会稳定的重大问题。我国政府向来重视环境健康问题,但是环境健康问题的法律规制仍存在诸多不足,如环境与健康孤立立法、环境健康影响评价的范围有限、缺乏环境健康标准等。因此,需要加强环境健康立法,确立环境健康风险预防原则,完善环境健康影响评价制度,建立环境健康标准体系,确立环境健康信息公开及共享机制,形成有效的环境健康监督管理协作机制,以切实保障人们的环境健康。

关键词：环境污染健康问题法律规制

Effects of Rare Earth and Hot Pressing Sintering Temperature on the Transverse Rupture Strength of Fe-based Diamond Composites

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厦门大学学报（自然科学版） 2002年第S1期41卷 76-77页

作者： DAI Qiu-lian, LUO Can-ben, XU Xi-peng, WANG Yong-chu (College of Mechanical Engineering & Automation, Huaqiao University, Quanzhou 362011, China)

Effects of sintering temperature in hot pressing, t yp es, states and amounts of rare earth as well as TiH 2 on the transverse rupture strength (TRS) of Fe-based composites are studied by means of orthogonal test and variance analysis in this paper. It is found that sintering temperature has a significant effect on the TRS of Fe-based diamond composites. The optimal sin tering temperature is 780～860 ℃. On the contrary, the effects of RE additi v es on values of TRS of the diamond composites have on distinct difference no mat ter the RE is in the state of mixture or compound or oxidization. Experimental r esults demonstrate that Fe-based diamond composites with RE additives exhibit h igher TRS, which results in an increase in diamond retention capacity. The degre e of increment of TRS is different at different sintering temperatures. The opti mal amount of rare earth was found to be about 1% in weight. The effect of RE is more significant at lower sintering temperature. The experimental results also reveal that TiH 2 additive has a negative effect on the TRS of Fe-based compos ites. Microscope observations demonstrate that specimen without TiH 2 additives , shows fewer pores and denser structures in the base metal. It can also be seen from the SEM observation of the resulting fracturing surface of bending test sp ecimens that the bonding of the diamond-matrix interface is better in the speci men without TiH 2 than in the specimen with TiH 2. Also the fracture surface o f the specimen without TiH 2 reveals ductile cup and cone behavior.

关键词： rare earth sintering temperature transverse rup ture strength diamond impregnated composite

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基于可拓方法的模块化外包商的选择研究

兵工学报 2009年第S1期30卷 75-79页

作者：彭本红冯良清南昌航空大学管理与经济学院江西南昌330063 上海财经大学应用经济学博士后流动站上海200434 南昌大学管理科学与工程系江西南昌330031

模块化外包使模块供应商承担了更多的设计与研制任务,增加了核心企业对模块供应商选择的复杂性。建立了模块供应商评价的指标体系,给出了合作伙伴选择的综合评价物元模型。此方法考虑到评价环境的模糊性,采用模糊群决策方法确定指标权... 详细信息

模块化外包使模块供应商承担了更多的设计与研制任务,增加了核心企业对模块供应商选择的复杂性。建立了模块供应商评价的指标体系,给出了合作伙伴选择的综合评价物元模型。此方法考虑到评价环境的模糊性,采用模糊群决策方法确定指标权重。在此基础上,给出了基于可拓理论的评价步骤,利用修正后的关联函数,求解关联度并寻找最优解。最后用一个算例进行了分析求解,结果表明此方法解决了构建模型时对指标的模糊主观判断问题,使得合作伙伴选择模型的最优策略更接近实际。该方法能够有效保证综合评价的质量和效率。

关键词：模块化外包物元模型伙伴选择