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信息公开行政诉讼中“对合法权益不产生实际影响”的认定--基于诉的利益要素的视角 被引量:1
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作者 董妍 张又文 《齐鲁学刊》 CSSCI 2022年第3期99-111,共13页
法院在适用“对合法权益不产生实际影响”条款否定信息公开行政诉讼诉的利益时,存在着与“不具有利害关系”和“不属于受案范围”混用的现象。从文本分析可知,这3个条款分别对应着诉的利益的3个要素,在立法目的上应为平行规范。现行规... 法院在适用“对合法权益不产生实际影响”条款否定信息公开行政诉讼诉的利益时,存在着与“不具有利害关系”和“不属于受案范围”混用的现象。从文本分析可知,这3个条款分别对应着诉的利益的3个要素,在立法目的上应为平行规范。现行规范表述上的交叠导致法院适用时的困难,亦导致了对相同性质的信息适用不同的规则。此外,在裁判中还存在裁判方式选择不当与论证不充分等现象。因此,亟需在司法实践层面采用狭义的诉的利益,明确信息公开行政诉讼中诉的利益为权利保护必要性,并以指导案例的方式加以确定,以解决实践中的上述问题。 展开更多
关键词 信息公开行政诉讼 诉的利益 不产生实际影响 指导案例
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内观认知疗法对医学生焦虑水平、自我效能感和应对方式的干预及机制 被引量:1
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作者 王宇暄 毛富强 +4 位作者 彭悦悦 郭子熊 江珊 王书哲 王新琦 《中国健康心理学杂志》 2024年第5期781-787,共7页
目的:探究内观认知疗法对医学生焦虑水平、自我效能感和应对方式的影响,并考察医学生内观认知疗法干预、自我效能感、应对方式和焦虑水平间的关系,以期为医学生心理健康教育工作和NCT疗法的作用机制研究提供理论支持。方法:采用随机数... 目的:探究内观认知疗法对医学生焦虑水平、自我效能感和应对方式的影响,并考察医学生内观认知疗法干预、自我效能感、应对方式和焦虑水平间的关系,以期为医学生心理健康教育工作和NCT疗法的作用机制研究提供理论支持。方法:采用随机数字表法将70名符合筛选标准的研究对象随机分配到内观认知疗法组和心理健康教育组,每组35人。内观认知疗法组接受为期7天的内观认知疗法干预,心理健康教育组接受相同时间的常规心理健康教育,最终共68人完成试验(内观认知疗法组34人,心理健康教育组34人)。干预前后使用SAS、GSES、SCSQ量表对两组研究对象进行测评。结果:①干预前,内观认知疗法组与心理健康教育组在焦虑,自我效能感,积极和消极应对方式得分上均不存在显著差异。②干预后,内观认知疗法组焦虑得分显著降低(t=5.835;P<0.01),自我效能感和积极应对方式得分均显著升高(t=2.289,4.668;P<0.05),消极应对方式得分不存在显著差异,干预前后心理健康教育组在上述所有量表得分中均不存在显著差异。③干预后,内观认知疗法组自我效能感和积极应对方式得分显著高于心理健康教育组(t=2.653,3.122;P<0.01),焦虑得分显著低于心理健康组(t=2.562;P<0.05)。④中介效应检验方面,内观认知疗法既可以直接影响医学生焦虑水平(β=-0.293,95%CI=-3.755~0.008),也可以通过自我效能感的中介作用(β=-0.307,95%CI=-0.612~-0.028)、积极应对方式的中介作用(β=0.140,95%CI=-0.293~-0.004)及自我效能感和积极应对方式的链式中介作用(β=0.222,95%CI=-0.553~-0.022)间接影响医学生焦虑水平。结论:内观认知疗法是一种能够有效降低医学生焦虑水平的干预手段,既能直接缓解焦虑,也能通过提高医学生自我效能感水平,改善积极应对方式间接降低医学生焦虑水平。 展开更多
关键词 内观认知疗法 医学生 焦虑水平 应对方式 自我效能感
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一种新型硬件设备错误检测方法 被引量:3
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作者 马超 阎栋 《小型微型计算机系统》 CSCD 北大核心 2011年第11期2285-2288,共4页
设备驱动的可靠性对于操作系统的可靠性具有重要意义.在编写驱动时总是假设硬件设备一直正常工作,但实际上硬件设备经常会出错.因此这个假设有可能会导致驱动甚至整个操作系统失效.硬件设备会产生中断相关的错误,典型的中断相关错误有... 设备驱动的可靠性对于操作系统的可靠性具有重要意义.在编写驱动时总是假设硬件设备一直正常工作,但实际上硬件设备经常会出错.因此这个假设有可能会导致驱动甚至整个操作系统失效.硬件设备会产生中断相关的错误,典型的中断相关错误有持续中断和不产生中断.这类错误会导致操作系统内核不能正常工作.因此,在驱动中检测中断相关的错误对于提高操作系统稳定性具有重要意义.本文介绍了基于定时器的检测持续中断和不产生中断的方法.该方法相比以前的方法具有开销小、精确度高的优点. 展开更多
关键词 操作系统 可靠性 设备失效 持续中断 不产生中断
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《民法典》与知识产权法的适用关系 被引量:31
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作者 孔祥俊 《知识产权》 CSSCI 北大核心 2021年第1期3-19,共17页
《民法典》与知识产权法之关系既有普通法与特别法的共性,更有知识产权特质带来的个性。知识产权法的适用需要民法视野,更需要保持其个性,且其个性更多源于公共政策性,并以此与其他民事权利保护相界分。合法、公平、诚实信用原则适用于... 《民法典》与知识产权法之关系既有普通法与特别法的共性,更有知识产权特质带来的个性。知识产权法的适用需要民法视野,更需要保持其个性,且其个性更多源于公共政策性,并以此与其他民事权利保护相界分。合法、公平、诚实信用原则适用于知识产权法,但又被赋予知识产权特色和内涵。知识产权法开放性地保护法益,是法益保护的重镇,但法益保护以合法为前提,并应对保护的正当性进行实质性衡量,非法行为不产生法益。诚实信用原则有广泛适用性,但又需要保持适用上的边界与谦抑。知识产权与物权在权利外观上有相似之处,但二者的原理和规则迥然不同,在理念与制度上不能简单类比。 展开更多
关键词 《民法典》 知识产权 非法行为不产生法益 诚实信用原则
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以麦草为原料清洁制浆新工艺 被引量:2
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作者 武长安 张克贤 +3 位作者 邱全国 魏秀珍 冯献忠 朱渊 《天津造纸》 2011年第4期7-14,共8页
本工艺(专利申请号200910245061.3)采用了自主研发的助剂,应用分步氧化法,使得纤维中木质素断裂变成无色物质,生产中不产生黑液,短时间反应即得到白度达70%ISO以上的白浆。在试生产中,确定了最佳反应条件:草水比为1:6;NaOH用量9%(对绝干... 本工艺(专利申请号200910245061.3)采用了自主研发的助剂,应用分步氧化法,使得纤维中木质素断裂变成无色物质,生产中不产生黑液,短时间反应即得到白度达70%ISO以上的白浆。在试生产中,确定了最佳反应条件:草水比为1:6;NaOH用量9%(对绝干草);ZH-1助剂用量0.18%(对绝干草);反应液pH10~11.5;过氧化氢用量13%(对绝干草);反应温度75~100℃、反应时间:1.5~2小时。采用本公司发明的洗草机(专利号2010201852400)洗草,保证了浆的质量。 展开更多
关键词 麦草 清洁制浆 不产生 黑液 新工艺
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Effects of Different Management Modes on Yield and Nutrient Efficiency of Ginger
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作者 郑福丽 张柏松 +4 位作者 高燕 田叶 马征 谭德水 江丽华 《Agricultural Science & Technology》 CAS 2015年第6期1222-1226,共5页
In order to establish high-yield and high-efficient cultivation technology for ginger in the central region of Shandong Province, the effects of different manage-ment modes on yield of ginger, nutrient efficiency and ... In order to establish high-yield and high-efficient cultivation technology for ginger in the central region of Shandong Province, the effects of different manage-ment modes on yield of ginger, nutrient efficiency and soil nitrate were carried out by field experiment. Four management modes were farmer convention mode, high yield and high efficiency mode, super high yield mode and super high yield and high efficiency mode, in which farmer convention mode was local farmers ’ conven-tional cropping methods, the other three management modes were optimized combi-nations of al management measures under a certain goal of increasing yield and efficiency. The results were as fol ows: ginger yield and nitrogen fertilizer efficiency under such three optimized management measures combinations as high yield and high efficiency mode, super high yield mode and super high yield and high efficien-cy mode were al higher than these of farmer convention mode, moreover, com-pared with farmer convention mode, the yield increased by 11.85%, 25.75% and 23.34%, respectively, and nitrogen fertilizer efficiency increased by 47.94%, 11.24%and 33.14%, respectively. Thereinto, the yield under super high yield mode were the greatest,and nitrogen fertilizer efficiency under high yield and high efficiency mode was the highest. 展开更多
关键词 Different management modes GINGER YIELD Nutrient efficiency
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消除静电危害的方法综述
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作者 潘广问 《襄樊大学学报》 1996年第2期38-40,共3页
本文综述了消除静电危害的三各方法,评述了各种方法的现状并对发展前景作了展望。
关键词 静电危害 泄漏法 中和法 不产生 消除法
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A decision model of optimal production reliability and warranty length in an imperfect production system
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作者 吴军建 王海燕 《Journal of Southeast University(English Edition)》 EI CAS 2014年第4期537-543,共7页
A decision model to maximize the total profit of manufacturers in an imperfect production system is constructed.In this model the production reliability and the warranty length are jointly used as decision variables f... A decision model to maximize the total profit of manufacturers in an imperfect production system is constructed.In this model the production reliability and the warranty length are jointly used as decision variables for the case that products are sold with a warranty i.e. the demand is dependent on the warranty length and sale price.Also all the non-conforming quality defective items in the production process are refurbished to conform to quality ones at a cost. The existence and uniqueness of the optimal values of production reliability and the warranty length are proved by using the Euler-Lagrange method in analyzing the model.A numerical example is also provided to illustrate the effectiveness of the decision model.The sensitivity analysis of the key parameters of the optimal solution and objective value is presented in addition. 展开更多
关键词 imperfect production system warranty length production reliability Euler-Lagrange method
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Production of Chiral Aromatic Alcohol by Asymmetric Reduction with Vegetable Catalyst 被引量:3
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作者 CHANG Xu YANG Zhonghua +2 位作者 ZENG Rong YANG Gai YAN Jiabao 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2010年第6期1029-1033,共5页
Chiral aromatic alcohols are the key chiral building block for many important enantiopure pharmaceu-ticals. In this work,we studied asymmetric reduction of prochiral aromatic ketone to produce the corresponding chiral... Chiral aromatic alcohols are the key chiral building block for many important enantiopure pharmaceu-ticals. In this work,we studied asymmetric reduction of prochiral aromatic ketone to produce the corresponding chiral alcohol using vegetables as the biocatalyst. Acetophenone was chosen as the model substrate. The results in-dicate that acetophenone can be reduced to the corresponding chiral alcohols with high enantioselectivity by the chosen vegetables,i.e. apple(Malus pumila),carrot(Daucus carota),cucumber(Cucumis sativus),onion(Allium cepa),potato(Soanum tuberosum),radish(Raphanus sativus),and sweet potato(Ipomoea batatas) . In the reaction,R-1-phenylethanol is produced with apple,sweet potato and potato as the catalyst,while S-1-phenylethanol is the product with the other vegetables as the catalyst. In term of the enantioselectivity and reaction yield,carrot(D. ca-rota) is the best catalyst for this reaction. Furthermore,the reaction characteristics were studied in detail using car-rot(D. carota) as the biocatalyst. The effects of various factors on the reaction were investigated and the optimal reaction conditions were determined. Under the optimal reaction conditions(reaction time 50 h,substrate concen-tration 20 mmol·L-1,reaction temperature 35 °C and pH 7),95% of e.e.(to S-1-phenylethanol) and 85% chemical yield can be obtained. This work extends the biocatalyst for the asymmetric reduction reaction of prochiral aromatic ketones,and provides a novel potential route to produce enantiopure aromatic alcohols. 展开更多
关键词 BIOREDUCTION asymmetric reduction ACETOPHENONE plant catalysis chiral alcohol
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Comparison of PPIs and H_2-receptor antagonists plus prokinetics for dysmotility-like dyspepsia 被引量:9
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作者 Masahiro Sakaguchi Miyuki Takao +14 位作者 Yasuo Ohyama Hiroshi Oka Hiroshi Yamashita Takumi Fukuchi Kiyoshi Ashida Masahiro Murotani Masuyo Murotani Kazuo Majima Hiroshi Morikawa Takashi Hashimoto Keisuke Kiyota Hirohiko Esaki Kanji Amemoto Gouhei Isowa Fumiyuki Takao 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第13期1517-1524,共8页
AIM: To compare efficacy of proton pump inhibitors (PPIs) with H2-receptor antagonists (H2RA$) plus pro- kinetics (Proks) for dysmotility-like symptoms in func- tional dyspepsia (FD). METHODS: Subjects were ... AIM: To compare efficacy of proton pump inhibitors (PPIs) with H2-receptor antagonists (H2RA$) plus pro- kinetics (Proks) for dysmotility-like symptoms in func- tional dyspepsia (FD). METHODS: Subjects were randomized to receive openlabel treatment with either rabeprazole 10 mg od (n = 57) or famotidine 10 mg bid plus mosapride 5 mg tid (n = 57) for 4 wk. The primary efficacy endpoint was change (%) from baseline in total dysmotility-like dyspepsia symptom score. The secondary efficacy endpoint was patient satisfaction with treatment. RESULTS: The improvement in dysmotility-like dyspep- sia symptom score on day 28 was significantly greater in the rabeprazole group (22.5% ± 29.2% of baseline) than the famotidine + mosapride group (53.2%±58.6% of baseline, P 〈 0.0001). The superior benefit of rabeprazole treatment after 28 d was consistent regardless of Helicobacter pylori status. Significantly more subjects in the rabeprazole group were satisfied or very satisfied with treatment on day 28 than in the famotidine + mosapride group (87.7% vs 59.6%, P = 0.0012). Rabeprazole therapy was the only significant predictor of treatment response (P 〈 0.0001), defined as a total symptom score improvement ≥ 50%. CONCLUSION: PPI monotherapy improves dysmotil- ity-like symptoms significantly better than H2RAs plus Proks, and should be the treatment of first choice for Japanese FD. 展开更多
关键词 DYSMOTILITY Functional dyspepsia H2-recep-tor antagonist PROKINETICS Proton pump inhibitor
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A Hybrid Programming Model for Optimal Production Planning under Demand Uncertainty in Refinery 被引量:6
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作者 李初福 何小荣 +2 位作者 陈丙珍 徐强 刘朝玮 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2008年第2期241-246,共6页
Abstract Production planning under uncertainty is considered as one of the most important problems in plant-wide optimization. In this article, first, a stochastic programming model with uniform distribution assumptio... Abstract Production planning under uncertainty is considered as one of the most important problems in plant-wide optimization. In this article, first, a stochastic programming model with uniform distribution assumption is developed for refinery production planning under demand uncertainty, and then a hybrid programming model incorporating the linear programming model with the stochastic programming one by a weight factor is proposed. Subsequently, piecewise linear approximation functions are derived and applied to solve the hybrid programming model-under uniform distribution assumption. Case studies show that the linear approximation algorithm is effective to solve.the hybrid programming model, along with an error≤0.5% when the deviatiorgmean≤20%. The simulation results indicate that the hybrid programming model with an appropriate weight factor (0.1-0.2) can effectively improve the optimal operational strategies under demand uncertainty, achieving higher profit than the linear programming model and the stochastic programming one with about 1.3% and 0.4% enhancement, respectavely. 展开更多
关键词 production planning demand uncertainty stochastic programming linear programming hybrid programming
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Infeasibility Diagnosis on the Linear Programming Model of Production Planning in Refinery 被引量:1
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作者 李初福 何小荣 +3 位作者 陈丙珍 龚真直 陈勃 张秋怡 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2006年第5期569-573,共5页
In order to effectively diagnose the infeasible linear programming (LP) model of production planning in refinery, the article proposed three stages strategy based on constraints’ classification and infeasibility anal... In order to effectively diagnose the infeasible linear programming (LP) model of production planning in refinery, the article proposed three stages strategy based on constraints’ classification and infeasibility analysis. Generally, infeasibility sources involve structural inconsistencies and data errors, and the data errors are further classified intoⅠ, Ⅱ and Ⅲ. The three stages strategy are: (1) Check data when they are inputted to detect data error Ⅰ and repair them; (2) Inspect data whether they are accorded with material balance before solving the LP model to identify data error Ⅱ and repair them; (3) Find irreducible inconsistent system of infeasible LP model and give diagnosis information priority-ranked to recognize data error Ⅲ and structural inconsistencies. These stages could be automatically executed by computer, and the approach has been applied to diagnose the infeasible model well in our graphic I/O petro-chemical industry modeling system. 展开更多
关键词 DIAGNOSIS INFEASIBILITY inconsistent constraints production planning
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Production of γ-linolenic acid and stearidonic acid by Synechococcus sp.PCC7002 containing cyanobacterial fatty acid desaturase genes 被引量:3
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作者 董学卫 何庆芳 +4 位作者 彭振英 于金慧 边斐 李有志 毕玉平 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2016年第4期772-780,共9页
Genetic modifi cation is useful for improving the nutritional qualities of cyanobacteria. To increase the total unsaturated fatty acid content, along with the ratio of ω-3/ω-6 fatty acids, genetic engineering can be... Genetic modifi cation is useful for improving the nutritional qualities of cyanobacteria. To increase the total unsaturated fatty acid content, along with the ratio of ω-3/ω-6 fatty acids, genetic engineering can be used to modify fatty acid metabolism. S ynechococcus sp. PCC7002, a fast-growing cyanobacterium, does not contain a Δ6 desaturase gene and is therefore unable to synthesize γ-linolenic acid(GLA) and stearidonic acid(SDA), which are important in human health. In this work, we constructed recombinant vectors Syd6 D, Syd15 D and Syd6Dd15 D to express the Δ15 desaturase and Δ6 desaturase genes from Synechocystis PCC6803 in Synechococcus sp. PCC7002, with the aim of expressing polyunsaturated fatty acids. Overexpression of the Δ15 desaturase gene in S ynechococcus resulted in 5.4 times greater accumulation of α-linolenic acid compared with the wild-type while Δ6 desaturase gene expression produced both GLA and SDA. Co-expression of the two genes resulted in low-level accumulation of GLA but much larger amounts of SDA, accounting for as much to 11.64% of the total fatty acid content. 展开更多
关键词 Synechococcus sp.PCC7002 Synechocystis sp.PCC6803 Δ15 fatty acid desaturase Δ6 fatty acid desaturase polyunsaturated fatty acids
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The Characterization of Damage of the Pipes Made from Stainless Steel
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作者 Vjera Novosel-Radovic Nikol Radovl +2 位作者 Tanja Soucie Ana Iharos Ana Belinic 《Journal of Chemistry and Chemical Engineering》 2012年第4期346-350,共5页
The damage was noted during the usage of the pipe system which was made out of austenite steel 316L on the assembly line for the production of urea. In order to find out the cause of such damage, the samples of pipes ... The damage was noted during the usage of the pipe system which was made out of austenite steel 316L on the assembly line for the production of urea. In order to find out the cause of such damage, the samples of pipes were taken at the places where the most damage took place. Samples were taken in the form of film, sediment and/or sludge from inner and the outer surface of the pipes. As well as each pieces of pipes were further cut into 10 mm x 10 mm plates. The prepared samples were studied using X-ray diffraction, X-ray emission spectrometry, scanning electron microscope and microanalysis as well as a light microscope. The results implicate microstructural changes within the inner wall of the pipe which was caused by intercrystalline corrosion. Such corrosion in the investigated samples of sediment and/or sludge appeared due to the damage of the protective film during the aggressive phases, 展开更多
关键词 DAMAGE pipe system austetnite steel intercrystalline corrosion.
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Effect of endogenous hydrogen utilization on improved methane production in an integrated microbial electrolysis cell and anaerobic digestion: Employing catalyzed stainless steel mesh cathode
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作者 Kiros Hagos Chang Liu Xiaohua Lu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2018年第3期574-582,共9页
Improving the production of methane, while maintaining a significant level of process stability, is the main challenge in the anaerobic digestion process. Recently, microbial electrolysis cell(MEC) has become a promis... Improving the production of methane, while maintaining a significant level of process stability, is the main challenge in the anaerobic digestion process. Recently, microbial electrolysis cell(MEC) has become a promising method for CO_2 reduction produced during anaerobic digestion(AD) and leads to minimize the cost of biogas upgrading technology. In this study, the MEC-AD coupled reactor was used to generate and utilize the endogenous hydrogen by employing biocompatible electrodeposited cobalt-phosphate as catalysts to improve the performance of stainless steel mesh and carbon cloth electrodes. In addition, the modified version of ADM1 model(ADM1 da) was used to simulate the process. The result indicated that the MEC-AD coupled reactor can improve the CH_4 yield and production rate significantly. The CH_4 yield was enhanced with an average of 48% higher than the control. The CH_4 production rate was also increased 1.65 times due to the utilization of endogenous hydrogen.The specific yield, flow rate, content of CH_4, and p H value were the variables that the model was best at predicting(with indexes of agreement: 0.960/0.941, 0.682/0.696, 0.881/0.865, and 0.764/0.743) of the process with SSmeshes 80/SS-meshes 200, respectively. Employing the catalyzed SS mesh cathode, in the MEC-AD coupled reactor, could be an effective approach to generate and facilitate the utilization of endogenous hydrogen in anaerobic digestion of CH_4 production technology, which is a promising and feasible method to scale up to the industrial level. 展开更多
关键词 Biochemical engineering methane Mathematical modeling Endogenous hydrogen Stainless steel cathode Microbial electrolysis
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Preparation of titanium powders by calciothermic reduction of titanium dioxide 被引量:6
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作者 万贺利 徐宝强 +3 位作者 戴永年 杨斌 刘大春 森维 《Journal of Central South University》 SCIE EI CAS 2012年第9期2434-2439,共6页
To develop an effective process for titanium powders production, a calciothermic reduction process of pigment titanium dioxide (w(TiO2)〉98%), based on the preform reduction process (PRP), was investigated by me... To develop an effective process for titanium powders production, a calciothermic reduction process of pigment titanium dioxide (w(TiO2)〉98%), based on the preform reduction process (PRP), was investigated by means of XRD, SEM and EDS. In this process, the mixture of TiO2 powder and CaC12 was pressed into pieces as feed preform and was reduced by calcium vapor. Titanium powders was recovered after leaching from the reduced preform with hydrochloric acid and deionized water. The results indicate when the mass ratio of CaC12 to TiO2 is about 1:4 and at a constant temperature of 1 273 K for 6 h in vacuum furnace, titanium powders with 99.55% purity by EDS analysis and irregular shape (8-15 μm in particle size) are obtained. 展开更多
关键词 titanium powders titanium dioxide calciothermic reduction calcium chloride
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Performance Calibration of Articulated Arm Coordinate Measuring Machine 被引量:5
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作者 Unai Mutilba Gorka Kortaberria Aitor Olarra Antonio Gutierrez 《Journal of Mechanics Engineering and Automation》 2013年第10期602-608,共7页
This paper presents the method for the performance calibration of AACMM (articulated arm coordinate measuring machines) according to ASME B89.4.22 Standard. The growing use of this class of measurement equipment has... This paper presents the method for the performance calibration of AACMM (articulated arm coordinate measuring machines) according to ASME B89.4.22 Standard. The growing use of this class of measurement equipment has been accompanied by an absence of authorized laboratories to provide calibration certificates for its performance. Due to ASME B89.4.22 and VD12617-9 are nowadays the unique standards in the field of AACMM verification, IK4 Tekniker has compared both of them in order to develop internal test procedures to yield reliable performance calibration results. As a result, IK4 Tekniker has been recognized by the Spanish Accreditation Body (ENAC) in the field of AACMM calibration. Internal test procedures and uncertainty evaluation analysis have been developed as well as ENAC certificated reference test equipments have been acquired to ensure a suitable AACMM calibration process. 展开更多
关键词 AACMM performance calibration ASME B89.4.22 ENAC UNCERTAINTY
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Characterization and recycling of nickel- and chromium-contained pickling sludge generated in production of stainless steel 被引量:11
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作者 李小明 谢庚 +2 位作者 HOJAMBERDIEV Mirabbos 崔雅茹 赵俊学 《Journal of Central South University》 SCIE EI CAS 2014年第8期3241-3246,共6页
Pickling sludge generated during the neutralization of pickling wastewater with calcium hydroxide in stainless steel pickling process was characterized using X-ray fluorescence spectrometry, X-ray diffractometry, scan... Pickling sludge generated during the neutralization of pickling wastewater with calcium hydroxide in stainless steel pickling process was characterized using X-ray fluorescence spectrometry, X-ray diffractometry, scanning electron microscopy, thermogravimetry and differential scanning calorimetry, etc. The major compositions of pickling sludge are CaF2, CaSO4, Me(OH), (M: Fe, Cr, Ni), and the content of CaF2 is high in the sludge. The melting point of pickling sludge is about 1350℃ and the viscosity is about 0.14 Pa.s at 1450 ℃, which are comparatively lower than those of normal refining slag. After heat treatment, the contents of sulfur and fluorine in the pickling sludge were reduced, confirming the thermal decomposition of sulfate in the sludge. Fluorine in the sludge is reduced by the gaseous SiF4 and A1F3 generated through the reactions of CaF2 with SiO2 and Al2O3. The preliminary results from the reduction test indicate that the sulfur content in the steel is not affected by the presence of sulfur in the sludge. The recovery of nickel is about 40%, and the chromium content changes marginally due to the protective atmosphere under the reduction condition of chromic oxide. The pickling sludge is a potential auxiliary material for the production of stainless steel. 展开更多
关键词 stainless steel pickling sludge CHARACTERIZATION RECYCLING SULFUR FLUORINE
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Effects of Temperature, Salinity, Light Intensity, and pH on the Eicosapentaenoic Acid Production of Pinguiococcus pyrenoidosus 被引量:3
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作者 SANG Min WANG Ming +2 位作者 LIU Jianhui ZHANG Chengwu LI Aifen 《Journal of Ocean University of China》 SCIE CAS 2012年第2期181-186,共6页
The effects of temperature, light intensity, salinity, and initial pH on the growth and fatty acid composition of Pinguiococcus pyrenoidosus 2078 were studied for eicosapentaenoic acid (EPA) production potential. The ... The effects of temperature, light intensity, salinity, and initial pH on the growth and fatty acid composition of Pinguiococcus pyrenoidosus 2078 were studied for eicosapentaenoic acid (EPA) production potential. The fatty acid composition was assayed by gas chromatography-mass spectrometry, which indicated that the main fatty acids were C14:0, C16:0 and EPA. The highest EPA percentage 20.83% of total fatty acids was obtained at 20℃ with the temperature being set at 20, 24, and 28℃. Under different salinities and light intensities, the highest percentages of total polyunsaturated fatty acids (PUFAs) and EPA were 17.82% and 31.37% of total fatty acids, respectively, which were achieved at salinity 30 and 100μmol photon m-2s-1 illumination. The highest percentages of total PUFAs and EPA were 38.75% and 23.13% of total fatty acids, respectively, which were reached at an initial pH of 6 with the test range being from 5.0 to 9.0. 展开更多
关键词 Pinguiococcus pyrenoidosus TEMPERATURE light intensity SALINITY PH EPA fatty acids
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Lipid characterization of an arachidonic acid-rich oil producing fungus Mortierella alpina 被引量:2
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作者 邬文嘉 颜佳铖 +5 位作者 纪晓俊 张鑫 商静生 孙丽娜 任路静 黄和 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2015年第7期1183-1187,共5页
Mortierella alpina has been considered as the most effective producer of arachidonic acid(ARA)-rich oil. It was found that several methods could improve the percentage of ARA in total lipids successfully, as they acti... Mortierella alpina has been considered as the most effective producer of arachidonic acid(ARA)-rich oil. It was found that several methods could improve the percentage of ARA in total lipids successfully, as they activated the desaturation system on the endoplasmic reticulum. Additionally, in M. alpina the ARA exists in several forms, such as triacylglycerol(TAG), and diacylglycerol(DAG). These forms are caused by different acyltransferases and they determine the nutrient value of the microbial oil. However, few works revealed detailed fatty acid distribution among lipid classes, which to some extent impeded the accurate regulation in ARA accumulation. Herein, this paper gives information on the accumulation process of main lipid classes and the changes of fatty acid composition in these lipids during ARA accumulation period in M. alpina. The result demonstrates that TAG was the dominant component of the total lipids, and it is the main form for ARA storage. The ARA enrichment stage occurred during 168–192 h when the amount of total lipids maintained steady. Further analysis indicated that the newly formed ARA-TAG might come from the incorporation and modi fication of saturated and monounsaturated fatty acids in other lipid classes. This work could be helpful for further optimization of ARA-rich TAG production. 展开更多
关键词 Arachidonic acidLipid characterizationTriacylgiycerol Mortierella alpina
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