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Search Results: 1 - 10 of 248779 matches for " 李想 "
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社会危机的特征、发展阶段和管理机制

科技进步与对策 , 2003,
Abstract: 当今世界,各种社会危机频频发生。分析了社会危机的基本特征,划分了社会危机的4个发展阶段,并在此基础上提出了社会危机的管理机制。社会危机特征发展阶段管理机制
论楚山绍琦对待弥陀净土信仰的态度
Chushan Shaoqi's Attitude toward the Faith of Amitabha's Land


- , 2015,
Abstract: 作为明初四川地区颇具影响力的禅师,楚山绍琦在与弥陀净土信仰者的交流中,显示出了极强的禅宗本色。一方面,他以消除差别性的论调破除了往生他方净土的宗教追求;另一方面,他对念佛法门的内涵与外延进行了重新诠释,使其符合禅宗的修行旨趣与目标。此外,楚山绍琦关于净土信仰态度的表述,既是对宋元之际禅净双修潮流的省思,又是对早期禅宗思想特色的复归。
As a famous Chan master in Sichuan district during early Ming Dynasty, Chushan Shaoqi showed the nature of the Chan sect when he communicated with the Amitabha believers. On one hand, he refuted the practice target of rebirthing in the Western Pure-land. On the other hand, he reinterpreted the content of Buddha-chanting method and made it conform to the purport and practice aim of the Chan sect. Otherwise, his attitude toward the faith of Amitabha's Land showed a reaction to the trend of the “joint practice”(Chan practice and Pure Land practice),which was popular in Song and Yuan Dynasties and the same philosophical characteristics with the early Chan masters.
内陆多期聚煤盆地找煤方向新认识
董清水,
煤田地质与勘探 , 1996,
Abstract: 传统的找煤方法不论何期的含煤岩系多以现今保留的盆地边缘为目标,作者通过近年对松辽盆地东缘和长春双阳地区的研究认为新的找煤战略应广泛开展盆地外围第四系覆盖的,根据零星露头误圈入老地层中的残留煤盆地的寻找,同时注意现今盆地边部向盆地内已尖灭的煤系地层,在盆地的更深部可能存在另一个独立的含煤小盆地。
新型动态针捕集阱技术分析大气中低浓度的VOCs
,陈建民
环境科学 , 2011,
Abstract: 本研究针对大气中挥发性有机物(VOCs)浓度低,难于分析等特点,以Carboxen1000作为吸附剂,制作一种新型动态针捕集阱(needletrap)装置,可用于主动富集大气中低浓度VOCs.该装置与气相色谱-质谱(GC-MS)联用,操作简单、无需溶剂、容易定性定量.选择空气中苯系物(BTEX)为目标化合物,对needletrap装置从设计原理到实际应用进行了详细分析,将萃取条件与穿透体积等实验条件进行优化,建立了needletrap吸附提取空气中BTEX的最佳条件.结果表明,方法检出限低至0.05ng·mL-1,加标回收率为86.5%~110.5%,符合外场采样要求.
管理者为什么纳言?——基于说服理论的研究
张龙,
- , 2016, DOI: 10.16538/j.cnki.fem.2016.09.006
Abstract: 管理者是否纳言将对员工后续建言和组织变革产生影响。首先基于说服理论阐述左右管理者纳言的一个重要原因是建言是否具有说服力;其次,构建了一个管理者纳言的说服过程模型,认为建言的说服力主要体现在建言者、信息、情境和管理者四个方面;再者,阐述了与这四个方面密切相关的一些具体因素(建言者的内群体成员身份、专业性和可信赖性,建言性质、是否提供证据和解决方法,建言时机、组织规范、权力距离以及管理者的情绪和认知)对于管理者纳言的影响。本研究有助于深化理解员工建言的结果,而且对研究管理者纳言的发生机制有较大的参考意义。
高中生情绪智力与危险行为的相关研究
A Correlation Study on Emotional Intelligence and Risk Behaviors in Senior School Students
 [PDF]

林余, 淼云, , 张进辅
Advances in Psychology (AP) , 2014, DOI: 10.12677/AP.2014.41014
Abstract:   目的:探讨情绪智力与危险行为的关系,为高中生情绪智力的开发及危险行为的预防提供依据。方法:采用巴昂情商量表青少年版(EQ-i: YV)和青少年危险行为评定量表对559名高中生进行测试。结果:1) 男女的情绪智力无显著差异,男生的危险行为显著高于女生;学业成绩越好的学生情绪智力越高,危险行为越低。2) 情绪智力与危险行为呈负相关。3) 压力管理能力和一般心境联合解释了危险行为24.2%的变异量。结论:高中生情绪智力与危险行为之间存在显著的相关,可以通过提高学生的情绪智力来减少危险行为。 Purpose: To ascertain the relationship between their emotional intelligence (EQ) and risk behaviors (RB), and to provide the basis for developing their emotional intelligence and preventing their risk behaviors. Methods: 559 senior school students were evaluated with Emotional Quotient Inventory: Young Version (EQ-i: YV) and Teenagers’ Risk Behaviors Scale. Results: 1) Scores of RB among boys were higher than girls’, but no gender differences in EQ. Scores among good academic performance were higher than those among bad academic performance in EQ, but inversely in RB. 2) EQ had negatively correlated to RB. 3) Stress management and general mood in EQ accounted for 24.2% of the variance in RB. Conclusions:
高比表面积Al2O3-TiO2二元气凝胶小球的制备
Preparation of High Specific Surface Area Alumina-Titania Binary Aerogel Beads
 [PDF]

, 秦国彤, 王亚涛, 魏微
Hans Journal of Chemical Engineering and Technology (HJCET) , 2013, DOI: 10.12677/HJCET.2013.33016
Abstract: 以拟薄水铝石和水合硫酸氧钛为前驱体,水为溶剂,采用溶胶–凝胶、烃氨成球法、老化和控制干燥制备出大比表面积的AlO2-TiO2复合气凝胶小球。研究其理化性质并考察了不同铝钛组成及温度对孔结构和酸量的影响。采用了SEM、XRD、FT-IR、NMR、N2吸附–脱附法、NH3-TPD等手段对所制得的复合氧化物进行了表征。结果显示,复合氧化物中TiO2为锐钛矿型,Al2O3为无定形。通过混合溶胶共水解缩聚及老化和控制干燥,使不同铝/钛比的二元气凝胶小球的比表面积均达到200 m2/g以上,总酸量达到0.8 mmol NH3/g以上。不同铝/钛比的二元气凝胶小球比表面积和酸量相近,孔径可通过铝/钛比调整。
Crack-free and high surface area mesoporous alumina-titania binary aerogel beads have been synthesized by sol-gel technology, the ball dropping method (BDM), extended aging and gradient drying method with pseudo boehmite and dehydrate titanyl sulfate as precursors and water as solvent. The effects of composition and calcination temperature on pore structure and acid amounts have been investigated and discussed. The binary aerogel beads have been charac-terized by scanning electron microscopy (SEM), X-ray powder diffraction (XRD), Fourier-transform infrared spectros-copy (FT-IR), solid state nuclear magnetic resonance (NMR), nitrogen adsorption/desorption analysis and ammonia- temperature programmed desorption (TPD). The obtained aerogel beads show surface area of 200 m2/g and acid amounts of 0.8 mmol NH3/g respectively. The binary aerogel beads with different constitutes show similar specific sur-face area and acid amounts. The pore size of aerogel beads can be modified by changing composition and calcination temperature.
Np-237在AP1000首循环堆芯中的嬗变研究
Transmutation of Np-237 in the First Cycle of AP1000 Core
 [PDF]

贾仁东, 刘滨, 蔡进,
Nuclear Science and Technology (NST) , 2015, DOI: 10.12677/NST.2015.33012
Abstract:
核电站所产生的乏燃料中含有大量的放射性核素,主要包括长寿命裂变产物(LLFP)和少量锕系元素(MA),这些核素要通过上万年的衰变才能消除放射性危害。分离嬗变技术(P&T)是将这些放射性核素从乏燃料中分离出来,放入特定装置中,对其进行中子照射,使其转变成低放射性核素或稳定核素。镎(Np)作为一种最主要的MA核素,其含量高,半衰期长。本文利用MCNP程序搭建AP1000反应堆堆芯模型,以二氧化镎(NpO2)嬗变棒为引入方式,设计出在首循环堆芯中添加嬗变材料的10种方案。通过计算比较各种方案中有效增殖因子(keff)、二氧化镎的添加质量和使堆芯重新达到临界所需要改变堆芯的程度,结果显示在堆芯燃料富集度为4.45%区域添加二氧化镎涂层的方案具有优势,本文对该方案进行了分析并进行了优化。
The spent fuel generated by nuclear power plants contains large quantities of radionuclides, in-cluding long-lived fission products (LLFP) and minor actinides (MA). These nuclides decay to no harm through thousands of years. Partitioning and transmutation technology (P&T) is to separate these nuclides from the spent fuel into specific device for neutron irradiation, making it into a low-level radioactive nuclides or stable nuclides. As a major MA nuclide, neptunium (Np) has a high productivity and long half-time. In this paper, MCNP code is used to build the AP1000 reactor core model, and neptunium dioxide (NpO2) transmutation rod is introduced to design 10 schemes where transmutation material is putted into the first cycle core. By calculation and comparing the effective multiplication factor (keff), the added quality of neptunium dioxide and the changing extent to make the core reach the critical again, the result shows that the scheme where neptunium dioxide coating is putted in the fuel enrichment 4.45% of the core has advantages. This paper analyzes the scheme and optimized.
DRAGON用于嬗变MA的计算研究
Computational Study of DRAGON for Minor Actinide Transmutation
 [PDF]

, 刘滨, 贾仁东, 蔡进
Nuclear Science and Technology (NST) , 2015, DOI: 10.12677/NST.2015.33015
Abstract: 长寿命高放废物MA作为核电站乏燃料中的重要组成部分,由于其特殊的物理化学性质,对生态有很强的危害性,一直是各国研究的重要课题之一。目前处理MA最安全有效的方法,是中子嬗变技术,而压水堆又是我国目前投入商业运行的主要的堆型,因此开展压水堆嬗变MA的研究在我国具有重要的意义。本文利用DRAGON程序建立了简化的AP1000燃料组件模型,模拟计算了在可燃毒物内均匀混合MA、在可燃毒物外镀层引入MA两种方式对燃料组件有效增殖因子(keff)、堆芯燃耗、燃料周期以及堆芯寿期的影响。结果表明:MA以上述两种方式添加到可燃毒物中后,燃料组件的燃耗深度会减少,从而延长了堆芯的燃料周期,同时也会对燃料组件的keff值产生影响,燃料组件维持在临界以上的时间也会延长,在一定程度上也会对整个堆芯的寿期产生有利影响。
The Minor Actinides (MA), a sort of long-lived and high-level radioactive nuclides is one of the most important part in the nuclear spent fuel. The MA is harmful to the ecological system because of its peculiar physical and chemical property. How to handle the MA in the spent fuel has always been one of the most important issues in nuclear waste management all over the world. The MA can be transmuted into stable or short-lived nuclides by neutron irradiation, and this is the most effective way to manage those high-level wastes. The PWR is the main reactor type at commercial operation in China, and the MA has a larger capture and fission cross section in the thermal reactor, therefore the study on the transmutation of the MA in the PWR has an important significance in China. This paper has used the DRAGON to build a simplified model of the AP1000 PWR fuel assembly and calculated the impacts on the k-effective of the fuel assembly, the fuel burnup, the fuel cycle and core lifetime when the MA uniformly mixed with the burnable poison or cladded on the burnable poison. The results show that: when the MA is added to the burnable poison in the above two methods, burnup level of the fuel assembly decreases and the fuel cycle of the core lengthens. It also has an impact on the k-effective of the fuel assembly, extending the time of the fuel assembly maintaining above the critical and has a favorable impact on core lifetime.
植物释放挥发性有机物(BVOC)向二次有机气溶胶(SOA)转化机制研究
莹莹,,陈建民
环境科学 , 2011,
Abstract: 利用自制玻璃生态罩,研究植物挥发性有机物(BVOC)的释放机制.在紫外光诱导条件下,BVOC经历一系列的光氧化反应,最终产生了二次有机气溶胶(SOA).运用固相微萃取(SPME)和气相色谱-质谱联用(GC-MS)技术,对目标植物(驱蚊草)释放出的BVOC进行采样分析,共检测出7种主要化合物,其中主要为单萜类、倍半萜类、醇类和酮类物质.研究发现,在紫外光的照射下,这些BVOC可以发生光氧化反应转化为SOA.利用串联差分淌度分析仪(TDMA)测定SOA的粒径分布和SOA颗粒物的吸湿性.结果表明粒径范围大致是50~320nm,吸湿性研究发现这些SOA具有吸湿性,生长因子可以从1.05增长到1.11.
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