二维Cd(Ⅱ)配合物的晶体结构及其对对硝基苯酚、四环素、2,6-二氯-4-硝基苯胺的荧光识别

通过水热反应合成了一种Cd(Ⅱ)配合物,分子式为{(H_(2)dbim)_(0.5)[Cd(Hbptc)]·H_(2)O}n(1),其中dbim=1-(4-(2,6-二甲基-2H-苯并[d]咪唑-3(3H)-酰基)甲基)苄基)-2,7-二氢-2,5-二甲基-1H-苯并[d]咪唑,H4bptc=3,3',4,4'-二苯甲酮四羧酸。配合物1为2D层状结构,点符号为{44·66}。配合物1可用于一些常见环境污染物的荧光识别。研究结果表明,配合物1能有效检测对硝基苯酚、四环素、2,6-二氯-4-硝基苯胺。计算得到对硝基苯酚、四环素和2,6-二氯-4-硝基苯胺对1的猝灭常数分别为2×10^(2)、5.4×10^(4)和2×10^(4)L·mol^(-1)。

Efficient fast mode decision using mode complexity for multi-view video coding

The variable block-size motion estimation(ME) and disparity estimation(DE) are adopted in multi-view video coding(MVC) to achieve high coding efficiency. However, much higher computational complexity is also introduced in coding system, which hinders practical application of MVC. An efficient fast mode decision method using mode complexity is proposed to reduce the computational complexity. In the proposed method, mode complexity is firstly computed by using the spatial, temporal and inter-view correlation between the current macroblock(MB) and its neighboring MBs. Based on the observation that direct mode is highly possible to be the optimal mode, mode complexity is always checked in advance whether it is below a predefined threshold for providing an efficient early termination opportunity. If this early termination condition is not met, three mode types for the MBs are classified according to the value of mode complexity, i.e., simple mode, medium mode and complex mode, to speed up the encoding process by reducing the number of the variable block modes required to be checked. Furthermore, for simple and medium mode region, the rate distortion(RD) cost of mode 16×16 in the temporal prediction direction is compared with that of the disparity prediction direction, to determine in advance whether the optimal prediction direction is in the temporal prediction direction or not, for skipping unnecessary disparity estimation. Experimental results show that the proposed method is able to significantly reduce the computational load by 78.79% and the total bit rate by 0.07% on average, while only incurring a negligible loss of PSNR(about 0.04 d B on average), compared with the full mode decision(FMD) in the reference software of MVC.

Research and Application of Maintenance Decision Method of Complex Equipment in Nuclear Power Plant

The determination of maintenance mode of complex equipment in nuclear power plant is an essential work for reliability analysis and maintenance decision. Currently, the main decision method of maintenance mode is reliability centered maintenance( RCM) logic decision-making process, but the process is a qualitative analysis process. Based on a comprehensive analysis of factors affecting equipment reliability and maintenance work, it adopts a fuzzy synthesis decision method to establish a maintenance decision model,which uses the maximum subordination principle and expert assessment method to determine the maintenance mode of complex equipment. Combined with a concrete example of generators in nuclear power plant,a description of maintenance decision method was proposed in the application of complex equipment. The research shows that the method is feasible and reliable.

Discrete decision model and multi-agent simulation of the Liang Zong two-chain hierarchical organization in a complex project

Different from the organization structure of complex projects in Western countries, the Liang Zong hierarchical organization structure of complex projects in China has two different chains, the chief-engineer chain and the general-director chain,to handle the trade-off between technical and management decisions. However, previous works on organization search have mainly focused on the single-chain hierarchical organization in which all decisions are regarded as homogeneous. The heterogeneity and the interdependency between technical decisions and management decisions have been neglected. A two-chain hierarchical organization structure mapped from a real complex project is constructed. Then, a discrete decision model for a Liang Zong two-chain hierarchical organization in an NK model framework is proposed. This model proves that this kind of organization structure can reduce the search space by a large amount and that the search process should reach a final stable state more quickly. For a more complicated decision mechanism, a multi-agent simulation based on the above NK model is used to explore the effect of the two-chain organization structure on the speed, stability, and performance of the search process. The results provide three insights into how, compared with the single-chain hierarchical organization, the two-chain organization can improve the search process: it can reduce the number of iterations efficiently; the search is more stable because the search space is a smoother hill-like fitness landscape; in general, the search performance can be improved.However, when the organization structure is very complicated, the performance of a two-chain organization is inferior to that of a single-chain organization. These findings about the efficiency of the unique Chinese-style organization structure can be used to guide organization design for complex projects.

Automatic Sleep Spindle Detection with EEG Based on Complex Demodulation Method and Decision Tree Model

Sleep spindle is the characteristic waveform of electroencephalogram (EEG) which is important for clinical diagnosis. In this study, an automatic sleep spindle detection method was developed. The EEG signals were recorded based on the standard polysomnogram (PSG) measurement. A preprocessing procedure is introduced to exclude the unnecessary data segments and normalized the necessary data segments. Complex demodulation method is adopted to detect the candidate sleep spindle waveforms and calculate the features. The sleep spindles are recognized based on a decision tree model. Finally, the detected sleep spindles were utilized to amend the sleep stage recognition results. The sleep EEG data from 3 patients with sleep disorders were analyzed. The obtained results showed that the detected sleep spindles in EEG signal improved the accuracy of sleep stage recognition.

Negotiated Complexity: Framing Multi-Criteria Decision Support in Environmental Health Practice

The complexity we take into account when dealing with complex issues and the way we deal with that complexity is not given or self-evident, it is framed and negotiated. Based on two environmental health decision support case studies we address a set of key methodological choices, crucial in shaping the multi-criteria decision support and illuminate how they followed from transdisciplinary collaboration and negotiation: diversity tolerance, dealing with uncertainty and difference of opinion, weight of information and the epistemological divide between traditional closed and alternative open paradigms. The case studies exemplify the growing conviction amongst methodologists that, especially regarding complex issues, best methods do not exist as such: methods are chosen and tailored in practice and the quality to a large extent is dependent on the process in which methodological development is embedded. We hope to contribute to making explicit the importance of methodological decision making regarding environmental health complexity.

Complexity Decision Making and General Systems Theory： An Educational Perspective

The aim of this paper is to look at some important educational aspects of complexity decision making m a mummsc^pnnary manner from the perspective of General Systems Theory （GST）. First, the major issues involved in complexity management and decision making are summarized as they are viewed in literature, and a review of GST and Systems Thinking is given. The discussion in the paper is developed within the context of GST in general, but concentrated on decision making in the three trends of GST： Operations Research, Cybernetics, and Managerial Cybernetics. Here, the role of Cybernetics in complexity decision making is particularly emphasized. The discussion is then extended to the latest developments in complexity decision making in Science of Complexity and Soft Systems Thinking. The study also includes a framework which is expected to guide instructors who are planning to offer contemporary courses on decision making. The framework provides some clues for assessing the level of complexity for a given situation and selecting the appropriate methodology for solution development.

Growth Response and Metal Accumulation of Sedum alfredii to Cd/Zn Complex-Polluted Ion Levels

Sedum alfredii Hance has been identified as a new Zn-hyperaccumulator native to China. In this study, responses and metal accumulation of S alfredii were examined under Zn/Cd complex polluted conditions. The results showed that optimal growth of S alfredii in terms of the maximum dry matter yield was observed at Zn/Cd complex level of 500/100 mumol/L. Plant cadmium (Cd) or zinc (Zn) concentrations increased with increasing Cd or Zn supply. During the 20 d treatment, the highest Cd concentration in the leaves reached 12.1 g/kg at Zn/Cd level of 50/400 mumol/L and that of Zn in the stems was 23.2 g/kg at Zn/Cd level of 1000/50 mumol/L. The distribution of Cd in different plant parts decreased in the order: leaf > stem greater than or equal to root, whereas that of Zn was: stem > leaf greater than or equal to root. The accumulation of Cd and Zn in the shoots and roots of S. alfredii increased with the increasing of Zn/Cd supply levels, peaked at Zn/Cd levels of 250/400 and 500/100 mumol/L, respectively. The highest Cd and Zn uptake by the shoots was approximately 5 and 11 mg/plant, and was over 20 and 10 times higher than those in the roots, respectively. Zn supply at levels less than or equal to 500 mumol/L increased plant Cd concentrations, whereas high Zn supply decreased root Cd but did not affect leaf Cd concentrations in S alfredii Low Cd supply increased Zn concentration in the leaves, but Cd supply higher than 50 mumol/L considerably reduced root Zn concentrations, especially at low Zn level. These results indicate that S. alfredii can tolerate high Zn/Cd complex levels and has an extraordinary ability to hyperaccumulate not only Zn but also Cd. It could provide a new valuable plant material for understanding the mechanisms responsible for co-hyperaccumulation of Zn and Cd as well as for phytoremediation of the Cd/Zn complex polluted soils.

用络合转化法在甲壳胺膜上制备CdS、ZnS纳米微粒

结构单元上带有配位基团的天然高分子甲壳胺与Ｃｄ２＋和Ｚｎ２＋络合后，通过络合转化方法可以在高分子膜上制备ＣｄＳ、ＺｎＳ等纳米微粒．用这种方法所得微粒尺寸可控、粒径均一、表面缺陷少．

基于ODM规则引擎的CDS医疗监控平台建设探讨

介绍了南京医科大学第一附属医院通过引入决策引擎工具(CDS),实现智能辅助临床,建设医疗质量监控平台的思路和实践。具体做法是:首先,通过基于规则引擎(ODM),设定监测医疗质量指标相关的规则,实现临床决策支持;其次,结合医院临床数据中心的丰富信息,对实时消息触发规则进行实时监测,对监测结果进行预警、干预、反馈;最后,形成监控闭环管理,完成CDS监控平台建设。CDS医疗监控平台服务于临床和卫生健康管理,辅助医生更好地分析临床数据,为有效控制医疗质量提供了新的解决思路和质量保证。

紫外光交联CdS-聚氨酯膜的制备及荧光特性研究

合成了 Cd S-聚氨酯 (带不饱和端基 )紫外光交联复合物膜 ,采用红外、DSC、DTA、X- ray衍射对交联膜进行了表征。探讨了 Cd2 +与高分子链之间的配位作用 ,Cd S粒子对聚氨酯 Tg 和结晶度的影响 ,着重研究了 Cd S含量、光固化时间、通 H2 S量和 Zn2 +对 Cd

DNA与CdS-COOH-EcoRI复合物相互作用的研究

采用荧光光谱、原子力显微镜、琼脂糖凝胶电泳等技术探究CdS-COOH-EcoRI复合物与DNA的相互作用.研究发现,小粒径的CdS-COOH-EcoRI复合物与DNA除了有特异性结合,还发生非特异性结合.DNA相对浓度比较大以及恒温孵育时间较短时,以特异性结合为主;而随着DNA相对浓度的减小以及恒温孵育时间的延长,会伴有非特异性结合.Ca2+存在时,可以通过延长孵育时间"激活"酶切反应,使得DNA被剪切.因此可以通过改变DNA相对浓度和孵育时间来调控EcoRI对DNA的剪切.

应用在基于Agent作战仿真中的协作Recognition-Primed Decision模型(英文)

现阶段,团队认知、自然决策方法和协作理论方面的研究是人工智能方面的热点问题,然而在将自然决策方法应用到多智能体的协作决策方面还需要进行大量的工作。该研究的目的是建立作战仿真中的协作决策模型,在对Klein的RPD模型进行了修改的基础上,提出了协作的SRPD模型,它能够支持多智能体系统态势感知的统一,并能将感知简化和提炼为多智能体的协作决策服务,并将该模型引入到作战仿真多智能体系统中建立了基于协作SRPD模型的多智能体体系。实验表明内核为协作SRPD模型的兵力主体能够对战场环境自主反应,并能够进行协作决策来协调统一团队的行为。

Synthesis,Structure and Luminescent Property of a New Cd(Ⅱ) Complex Containing 2-Propyl-imidazole-4,5-dicarboxylate

A new Cd（Ⅱ） complex（[Cd（H2PIDC）2]n） with singly deprotonated 2-propyl-imidazole-4,5-dicarboxylate as bridging ligand was synthesized and characterized by X-ray diffraction method.Crystal data：monoclinic,space group P21/c,with a=8.2547（11）,b=10.7071（15）,c=13.9131（14）A,β=126.164（5）o,V=992.8（2）A^3,C16H18N4O8Cd,Mr=506.74,Z=2,Dc=1.695g/cm^3,F（000）=508,μ=1.151 mm^-1,R=0.0296 and wR=0.0812 for 1581 observed reflections.Singly deprotonated ligands（H2PIDC-） act as μ3-bridge and join the Cd（Ⅱ） atoms into a 2-D layer structure.The 2-D layers are further linked by intermolecular hydrogen bonds into a 3D network.The luminescent property of the complex was also investigated.

Syntheses and Crystal Structures of Two New Hg(Ⅱ) and Cd(Ⅱ) Complexes with 2,3,5,6-Tetrakis-(2-pyridyl)Pyrazine

Under thermal gradient in solution phase, the reaction of Hg（Ⅱ） and Cd（Ⅱ） salts with 2,3,5,6-tetrakis-（2-pyddyl）pyrazine （tppz） in 1：1 molar ratio afforded dinuclear [{HgI2}2}- tppz）] （1） and mononuclear [CdI2（tppz）] （2） complexes. Single-crystal X-ray diffraction structural analysis reveals that the tppz acts as bis-tridentate and tridentate chelating ligands in 1 and 2, respectively. Metal（Ⅱ） ions adopt a distorted square pyramidal geometry and have the same coor- dination environment in both complexes. Based on the 1H NMR spectroscopy measurements, both complexes decompose in solution and release free tppz.

Hydrothermal Syntheses, Crystal Structures and Luminescence Properties of Cu(Ⅱ) and Cd(Ⅱ) Complexes Assembled by 6-Hydroxypicolinic Acid and 1,10-Phenanthroline

Two new complexes based on 6-hydroxypicolinic acid(H_2picO) and 1,10-phenanthroline(phen), such as [Cu_4(picO)_4(phen)_4]·12 H_2O(1) and {[Cd_4(picO)_4(phen)_4(H_2O)_2]·5H_2O}_n(2), have been synthesized and characterized by IR, elemental analyses, thermogravimetric analyses and X-ray diffraction technique. Single-crystal X-ray diffraction analyses revealed that the two complexes both crystallize in the triclinic system, space group P(16)-. For complex 1, the picO ligands adopt a tridentate coordination mode to link copper(Ⅱ) ions into dimmers. PicO ligands also adopt a tridentate mode in complex 2, which connects the cadmium(Ⅱ) to form a one-dimensional chain. Moreover, luminescent properties of 1 and 2 were also investigated.

Multi-factors decision-making entropy method and its application in engineering management

In order to meet the strict requirements for information in engineering management, the positive interval （0, 1 ] in Shannon information entropy is extended to the real number interval [ - 1, 1 ]. The information theory and the decision theory are combined effectively, and the deficiencies that the traditional Bayes decision-making methods only consider a single factor are made up for. The multi-factors engineering decision-making methods are proposed, and some critical problems are solved in the practical engineering management decision-making process.

The Moderating Effect of Team Orientation Over the Relationship Between TMT Strategic Decision Speed and Firm Performance

Due to the fast changing competitive environment faced by organizations, companies are forced to find ways to quickly adapt to technological innovations, changing demands of customers, and strategic actions taken by competitors. The purpose of the paper is to further the relationship between top management team （TMT） strategic decision speed and firm performance, considering the team processes when making strategic decisions in the face of complex environments. Measures of TMT strategic decision speed, firm performance, team orientation, and environmental complexity were collected from 29 top management teams of Mexican companies, which represented a total of 118 questionnaires. Pearson correlations among the variables and moderated regression analyses were performed, to test the hypotheses included in the study. Results show a positive relation between environmental complexity and TMT strategic decision speed and between team orientation and speed. Furthermore, results show that there is a positive relation between TMT strategic decision speed and firm performance in the presence of team orientation. In other words, team orientation moderates the relationship between TMT strategic speed and firm performance. Among the implications for managers is that they must ensure effective team processes （e.g., building consensus, active participation, and trust among team members） when making strategic decisions in order for the firm to perform better.

Syntheses,Structures and Photoluminescent Properties of Cd(Ⅱ)Polymeric Complexes Based on 5-Aminoisophthalic Acid and Bipyridine Co-ligands

Two novel complexes, namely {[Cd（AIP）（4,4＇-bpy）]·1.3DMF}n（1） and [Cd（AIP）（2,2＇- bpy）]n（2）, have been synthesized through solvothermal reaction（H2AIP = 5-aminoisophthalic acid, 2,2＇-bpy = 2,2＇-bipyridine, 4,4＇-bpy = 4,4＇-bipyridine, and DMF = N,N＇-dimethylformamide） and structurally determined by single-crystal X-ray diffraction. Complex 1 shows a three-dimensional（3D） layer-pillar framework with rectangular channels, while complex 2 displays a two-dimensional（2D） wave net architecture. Furthermore, 1 and 2 were characterized by elemental analysis, infrared spectra（IR）, thermal gravimetric analyses（TGA） and fluorescence measurements. The luminescent properties of 1 dispersed in various organic solvents have been investigated systematically, demonstrating high selectivity for acetone via the fluorescence quenching effect.

Indirect Spectrophotometric Determination of Sulphide with the Complex of Cd(Ⅱ)-5-Br-PADAP-CPB

By the use of CPB, Cd(Ⅲ) forms a highly sensitive complex with 5-Br-PADAP in aqueous solution, molar absorptivity εis 1. 21 ×105 1. mol-1. cm-1.Trace amount of sulphide can be determined from its effect on the complex of Cd (Ⅲ)-5-Br-PADAP-CPB, sulphide in the range 0~3. 2 ×10-6mol dm-3 causes a decrease in absorption, that is a linear function of the concentration, For 13ng cm-3 sulphide, common metal ions such as Na+, K+, Ca2+, Mg2+, Al3+ and anions such as CO (24μg cm-3). S2O (22μg cm-3). PO (20μg cm-3) etc. do not interfere. A method for the indirect determination of sulphide in beer and in dustrial waste water with good selectivity and accuracy is described.