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经济增长与电子支付行业的财务风险——基于上市公司长期资产适合率的视角
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作者 农丽娜 周丽函 《区域金融研究》 2014年第3期50-52,共3页
基于1993~2012年电子支付行业22家上市公司财务数据的实证分析表明,宏观经济波动对长期资产适合率的冲击存在时滞效应.考虑到时滞效应经过多重叠加后的最终结果难以判定,从监管效率的角度来看,逆周期监管也许并不是最好的宏观调控政策... 基于1993~2012年电子支付行业22家上市公司财务数据的实证分析表明,宏观经济波动对长期资产适合率的冲击存在时滞效应.考虑到时滞效应经过多重叠加后的最终结果难以判定,从监管效率的角度来看,逆周期监管也许并不是最好的宏观调控政策选择.因此,除了企业加强自身的内部管理之外,政府部门还需要制定相对稳定的政策规则,科学引导电子支付行业的科学发展,并使得相关企业能够形成较为合理的市场预期边界,减少市场情绪对企业投资决策的干扰. 展开更多
关键词 经济增长 电子支付行业 上市公司 长期资产适合率
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用长期资产适合率分析煤炭企业偿债能力 被引量:4
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作者 马宗超 《中国煤炭》 北大核心 2005年第7期28-28,30,共2页
长期资产适合率能够说明煤炭企业的长期资本结构是否稳健、财务风险大小是否适中。利用长期资产适合率来分析煤炭企业的偿债能力,可以降低财务风险、增强财务结构长期安全性。
关键词 煤炭企业 长期资产适合率 偿债能力 资本结构 财务风险 财务结构 中国
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从黑白图像中检测圆 被引量:3
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作者 韩海 《武汉理工大学学报》 CAS CSCD 2003年第5期75-78,共4页
提出了一种基于线条化边界线的圆检测算法。先从灰度图像中确定宽度为 1的边界线 ,再把边界线分成N个片段 ,找到所有合适的圆心及半径 ,逐步求精地确定圆的最终位置。算法的复杂度为O(N3 )。
关键词 边界线片段 候选圆 逼近 适合率 复杂度
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如何根据会计报表进行风险分析
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作者 李秉成 《冶金财会》 1998年第5期18-20,共2页
一般来说,投资者的收益由当前收益和未来收益组成。风险是影响未来收益的因素之一,因此在投资前,投资者了解未来将承担的风险是提高投资收益的关键。企业对外提供信息的主要载体是会计报表。本文就如何利用资产负债表、损益表等主要会... 一般来说,投资者的收益由当前收益和未来收益组成。风险是影响未来收益的因素之一,因此在投资前,投资者了解未来将承担的风险是提高投资收益的关键。企业对外提供信息的主要载体是会计报表。本文就如何利用资产负债表、损益表等主要会计报表来分析、了解投资者的风险,与大家商榷。 展开更多
关键词 风险分析 会计报表 财务杠杆系数 经营风险 固定长 损益表 资产负债表 适合率 流动资产 未来收益
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Elimination Mechanism and Equilibrium Model about Complete Linkage of Panmixis Based on Fitness 被引量:2
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作者 覃俊达 陈奇 李大林 《Agricultural Science & Technology》 CAS 2011年第6期801-804,共4页
[Objective]The aim was to discuss elimination mechanism and equilibrium model about complete linkage gene of panmixis based on fitness.[Method]A mathematical model that gsgenerational evalution of frequency of panmixi... [Objective]The aim was to discuss elimination mechanism and equilibrium model about complete linkage gene of panmixis based on fitness.[Method]A mathematical model that gsgenerational evalution of frequency of panmixis two pairs of complete linkage gene under difference fitness was built by using difference equations to study elimination mechanism and genetic equilibrium state of panncticcoinplete linkage gene.[Result]The panmixis is different from Hardy-Weinberg Equilibrium which reached the equilibrium just by one generation.A method that by using linear equation to calculate the frequency of four gametes and the fitnessed of panmixis was established after detormining is the fitness of 10 genotypes the necessary and sufficient condition of the panmixis to reach balance.[Conclusion]The method is valuable for reference on linkage disequilibrium and hitchhiking effect study. 展开更多
关键词 Random match Complete linkage Gene frequency FITNESS EQUILIBRIUM
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A Novel 4/5 Prescaler with Automatic Power Down
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作者 曾隆月 朱思奇 阎跃鹏 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2008年第8期1449-1452,共4页
An "automatic power down" method is introduced to design a 4/5 prescaler,with the characteristic of making one of its D-flip-flops power down when it operates in divide-by-4 mode. Implemented with the TSMC 0.25vm mi... An "automatic power down" method is introduced to design a 4/5 prescaler,with the characteristic of making one of its D-flip-flops power down when it operates in divide-by-4 mode. Implemented with the TSMC 0.25vm mixed-sig- nal CMOS process,the 4/5 MOS current mode logic prescaler is designed with this automatic power down technique. The simulation results show that the new 4/5 prescaler is immune to the "wake-up" issue and thereby retains the same maxi- mum operating frequency as the conventional prescaler. An integer-N divider with this proposed prescaler and with the di- vision ratio 66/67 is manufactured,and it is estimated to save more than 20% of the power compared with the conventional 4/5 prescaler. 展开更多
关键词 MCML prescaler automatic power down frequency synthesizer
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治疗学
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《国外科技资料目录(医药卫生)》 CAS 2001年第5期47-48,共2页
0116488 造血干细胞移植的里程碑/Thomas E D//World J Surg.-2000,24(7).-815~818 湘雅图0116489 CDId 介导的树突状细胞治疗的可能性[日]/贽田美江//临免.-2000,33(2).-218~222
关键词 造血干细胞移植 树突状细胞 治疗学 异型输血 里程碑 可能性 白细胞去除 医科 适合率 药物疗法
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A Σ-Δ Fractional-N PLL Frequency Synthesizer with AFC for SRD Applications 被引量:1
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作者 章华江 胡康敏 洪志良 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2008年第7期1298-1304,共7页
A fractional-N frequency synthesizer for 433/868MHz SRD applications is implemented in a 0.3μm CMOS process. A wide-band VCO and an AFC are used to cover the desired bands. A 3bit third order sigma-delta modulator is... A fractional-N frequency synthesizer for 433/868MHz SRD applications is implemented in a 0.3μm CMOS process. A wide-band VCO and an AFC are used to cover the desired bands. A 3bit third order sigma-delta modulator is adopted to reduce the out-band phase noise. The measurements show a VCO tuning range from 1.31 to 1.88GHz with AFC working correctly,an out-band phase noise of -139dBc/Hz at 3MHz offset frequency, and a fractional spur of less than - 60dBc. The chip area is 1.5mm × 1.2mm and the total current dissipation including LO buffers is 19mA from a single 3.0V supply voltage. 展开更多
关键词 short range device phase locked loop adaptive frequency calibration frequency synthesizer SIGMA-DELTA
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Evolution of two properties for scale-free network 被引量:1
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作者 Li Shouwei Qian Xingsan 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2006年第3期535-540,共6页
Fitness of node can denote its competing power and clustering denotes the transitivity of network. Because the fitness of node is uncertain or fuzzy in some social networks, an explicit form of the degree distribution... Fitness of node can denote its competing power and clustering denotes the transitivity of network. Because the fitness of node is uncertain or fuzzy in some social networks, an explicit form of the degree distribution on fuzzy fitness is derived within a mean field approach. It is a weighted sum of different fuzzy fitness. It can be found that the fuzzy fitness of nodes may lead to multiscaling. Moreover, the clustering coefficient of node decays as power law and clustering coefficient of network behavior not-decrease-but-increase’ phenomenon after some time. Some computer simulation results of these models illustrate these analytical results. 展开更多
关键词 fuzzy fitness clustering coefficient power law distribution scale-free.
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Biological Effects in Heterotic Combination with Novel Adaxially-rolling Character in Rice(Oryza sativa L.) 被引量:1
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作者 龚晓平 况晓明 +5 位作者 罗挺 李加胜 赵许兵 赵冰峰 曾胜 张致力 《Agricultural Science & Technology》 CAS 2015年第11期2504-2508,2512,共6页
Taking the heterotic combinations which respectively had moderately-rolled leaves and flat leaves at middle and later stages as tested materials, the biological effects in the heterotic combination of the moderately-r... Taking the heterotic combinations which respectively had moderately-rolled leaves and flat leaves at middle and later stages as tested materials, the biological effects in the heterotic combination of the moderately-roiling leaf mutant RL(f) were studied. The results showed that (i) there was insignificant difference between the leaf morphological characteristics of the RL(t) and fiat leaf heterotic ombinations at early growth stage in that beth of them had fiat leaves and relatively big basic leaf angles; (it) the stomatal conductance, the intercellular CO2 concentration, transpira- tion rate and photosynthetic rate of the three top leaves of the RL(t) heterotic com- bination were significantly higher than those of the flat leaf heterotic combination at middle and later stages, which laid the foundation for increasing the yield per unit area; (iii) the light transmittance of the RL(f) heterotic combination in population at the middle part was higher than that of flat leaf heterotic combination, resulted in improved light interception condition at middle and lower parts of the population and increased the utilization efficiency of tight energy; and (iv) this research revealed that the RL(t) heterotic combination could not only maintain a larger amount of the effective panicles but also could present large-panicle characteristic, especially in high-density condition, and also the ability of adjusting yield components the RL(f) heterotic combination was significantly increased under different densities. This study would provide a theoretical basis for the principle of high-yielding breeding with the application of the moderately-rolling leaf mutant in rice. 展开更多
关键词 RICE Moderately rolling STRAIGHTNESS Photosynthetic rate Ught transmittance
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Effects of Probability of Accurately Predicting and Ascertaining Defection on Cooperation and its Application to Simulated Internet Dealing
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作者 Atsuo Murata Naoki Hata 《Computer Technology and Application》 2013年第2期93-104,共12页
Without cooperative behaviors, our society or organization falls into social dilemma situations where every member selects uncooperative (defective) behaviors, and the situation gets worse and worse. Such a situatio... Without cooperative behaviors, our society or organization falls into social dilemma situations where every member selects uncooperative (defective) behaviors, and the situation gets worse and worse. Such a situation in a society or an organization leads to violation of social or organizational rules, and at the worst case it suffers from serious accidents or scandals. Therefore, it is important for us to make efforts and take measures to elicit cooperative behaviors. It was demonstrated theoretically that altruism strategy and adaptive prediction and ascertainment strategy are in some cases better than rational strategy under the situation of social dilemma. We built up a mathematical model in order to examine how the probability of correctly predicting and ascertaining the behavior (cooperation or defection) of opponents and the mixture of (a) altruism (all cooperation) strategy, (b) individualism (all defection) strategy, and (c) adaptive prediction and ascertainment strategy affected the expected profit. Simulation results showed that the tit-for-tat strategy was better than the rational (individualism) strategy when the probability of correctly predicting and ascertaining defection of the opponent was considerably higher. As an application of the basic study above, it was explored, using a simulation method, how such a system as opening reputation or peer review in public could work satisfactorily to prevent defective behaviors in auction dealing. The result showed that the information on the handle name and the reputation effectively worked to prevent defective behaviors. 展开更多
关键词 Prisoner's dilemma COOPERATION DEFECTION ascertainment of defection internet dealing reputation.
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