查询词典 null hypothesis

The former hypothesis is mainly based on mathematical linear extrapolation from effects observed by high doses. This notion advocates the linear assumption of radiation risk and that there is no lower limit to the amount of radiation that causes short- or long-term damage. The latter is the countervailing hypothesis-radiation hormesis.

前者主要依据高辐射剂量效应的观察，用数学线性补插法来求低剂量之效应，主张：辐射剂量会造成短或长期的伤害，且无低限值的；后者的证明来自於广泛的流行病学观察和实验研究的科学资料，这些证明指出辐射对人的伤害有确定的阀值剂量。

I think the Matrix Hypothesis should be regarded as a metaphysical hypothesis with all three of these elements.

我想Matrix假说要被看成是一个涉及这三个要素的形而上学的假说。

In the end, it is further developed of the inverse U hypothesis from monocycle condition to multi-cycle condition with a new hypothesis, which is called cyclical fluctuation of regional disparity.

在新古典经济学得出的增长轨迹基础上，利用简化的两地区逻辑曲线初步证明"倒U假说"的成立；并进一步讨论这一假说在多周期情形下的一个拓展，即地区差距的周期波动。

On the basis of economic retional person hypothesis, tradecast non - zero hypothesis and information non - symmetry hypothsis, the author obsrves the problems in aquatic products quality and the cause from the angle of economy and puts forword corresponding policy suggestion.

本文在经济理性人假设、交易成本非零假设和信息非对称性假设的基础之上，从经济学的角度，审视了水产品质量问题及其原因，并提出了相应的政策建议。

Then author adopts attitude change theory and organismic integration theory to develop hypothesis associating power usage with compliance and emotional commitment, uses cognitive evaluation theory to develop hypothesis associating power usage with relationship value.

然后，论文利用态度改变理论与有机整合理论分别探讨了制造商权力运用与经销商依从、情感承诺之间的关系；使用认知评价理论探讨了权力运用与关系价值之间的关系。

The " economic person" hypothesis has the both sides to the person's development, on the other hand, the " economic person" hypothesis opposes the divine nature with the human nature, the proper of the affirmative personal material benefits, from but liberation with character that enriched the person, make the person's development have the reasonableness mindset, make the person's social relation get plentifulness, ability to get the exaltation.

经济人假说的提出使对人的发展的研究与人性现实是什么结合了起来，进而使对人的发展的研究由抽象的、片面的、静止的思维方式转向现实的、历史的思维方式。

Many theories and hypotheses in the history are involved in this problem, like belief in divine creation, the "ding-dong" hypothesis, the "pooh-pooh" hypothesis and so on, while all of them seem equally far-fetched.

语言起源迄今为止仍然是世界上最为神秘而迷人的话题之一。

Specially, the author hopes to find whether the financial system development promotes the provincial per capita, the accumulation of provincial savings, the formation of provincial capital, the advancing of productivity, the bettering of industrial structure and the shaping of firms. Finally, according to the result of the empirical study, the author brings forward the Contradiction of Chinese Financial System Development during transition period. To explain the Contradiction, the author puts forward a hypothesis: time consistency and institution coupling of the optimal system arrangements. Within the hypothesis framework, the author analyses and explains the contradiction's essential, and seeks the reason of Chinese financial system development's path formation during transition period. After judging the efficiency of Chinese financial system development prudentially, the author gives his advices on how to drive Chinese financial system to the"Growth-Enhancing Financial System Development"path. The dissertation is divided into five chapters. It consists of as follows: Part I includes foreword and Chapter One"the review of financial development theory and literature". In foreword, the author expounds the fundamental definition and basic theory. In Chapter One, the author first analyses the"finance-growth"nexus in theory, and which constitutes the foundation of the concrete mechanism of finance affecting growth.

首先对金融发展与经济增长的关系在理论上进行了梳理，指出金融发展能够促进经济增长，金融是现代经济增长的"第一推动力"；其次将这种理论关系分解，借助当前本领域的最新研究方法和工具从宏观和微观层面验证转轨时期中国各地区金融发展与经济增长传导机制的效果，即金融体系的发展是否有效地促进了各地区人均产值的增加、储蓄的积累、资本的形成、生产力的提高、产业结构的调整以及企业的成长；最后在实证检验的基础上提出"中国金融发展悖论"，并在"最优制度安排的动态一致性与制度耦合"假说的框架内来分析中国金融发展悖论的真实内涵以及中国金融发展路径形成的原因，审慎评价转轨时期中国金融体系的发展效率，初步探讨了中国金融体系走向"推动经济增长"金融发展道路，指出实现金融对现代经济的"第一推动力"作用所应努力的方向。

The Ptolemaic hypothesis could be discarded in favor of a completely new hypothesis bases on different assumptions.

放弃托勒密体系以利于根据不同假定而形成完全新的假设。

In real flight, multiple sensors of aircraft engine control system may fault at a time. In order to solve this problem, a revised multiple-failure-hypothesis based testing is investigated. This approach uses multiple Kalman filters, and each of Kalman filter is designed based on a specific hypothesis for detecting specific sensors fault, and then uses WSSR (Weighted Sum of Squared Residual) to deal with Kalman filter residuals, and residual signals are compared with threshold in order to make fault detection decisions. The simulation results show that the proposed method can be used to detect multiple sensors soft failures fast and accurately.

一般认为两个以上传感器同时发生故障的概率较小，但实际上不能排除其发生的可能性；提出了一种改进的多重故障假设方法来解决航空发动机控制系统多传感器同时发生软故障的问题，这一方法采用一组卡尔曼滤波器，每个滤波器对应一个被检测传感器的故障模态；采用残差加权二乘方处理滤波残差并与门限值作比较来判断是否发生故障；仿真结果表明，所提出的方法能有效解决多传感器软故障的检测与隔离问题。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。