Subjects: Nuclear Science and Technology >> Particle Accelerator submitted time 2023-11-29
Abstract： The accelerator vacuum monitoring system is an important subsystem in the accelerator control system, which plays an important role in maintaining the normal operation of the accelerator. The design, development and development process of traditional large-scale control systems are highly dependent on physical entities, and the functional testing and performance verification of the whole system are all concentrated in the late stage of the project, resulting in a long development cycle of the control system, higher risks, and a tight time for late field debugging. To this end, industrial virtual debugging and virtual machine technologies were introduced to build a full-level virtual simulation debugging platform for the accelerator vacuum monitoring system. In the early stage of development, parallel collaborative development, full-level virtual debugging and logic rehearsal of the accelerator air monitoring system began to be carried out. Finally, the debugging results were applied to the site through on-site configuration, significantly shortening the time of on-site debugging. Reduce equipment loss and commissioning risk, improve project implementation efficiency and engineering design reliability.
Subjects: Psychology >> Social Psychology submitted time 2023-03-27 Cooperative journals: 《心理学报》
Abstract： Two-part allegorical sayings are a typical language form in Chinese. Understanding two-part allegorical saying involves the ability to understand figurative meanings. Chinese two-part allegorical sayings convey figurative meanings by activating either homophonic or conceptual associations. Homophonic associations are realized based on a conceptual connection between the two homophonic expressions: the second part of the sayings and the expression of the idiomatic meaning. Within the example of Lao tai tai shang ji wo (老太太上鸡窝)—ben dan (笨蛋), a situation is described as an old lady (lao tai tai or老太太) is about to walk towards a henhouse (shang ji wo or上鸡窝), which is reflected in the second part that the purpose of doing this is “heading for eggs” (ben dan or奔蛋). The intended interpretation of the saying “an idiot” (ben dan or笨蛋) could not be worked out without the help of a very crucial apparatus—sound association; that is, “heading for eggs” is pronounced the same with “an idiot” in Chinese with respect to the same segmental combinations and tone patterns. Within the paradigm of sound association, the meaning identified in the source domain (the first part; in our example, the old lady’s behavior) is also observed in the target domain (the second part; in our example, the figurative meaning of the old lady’s behavior) in a metaphoric way through mapping between the two domains, resulting in a shifting from a concrete concept to an abstract one. Mapping, which was described by Lakoff and Johnson in their Conceptual Metaphor Theory, has been considered a powerful theory in interpreting metaphors. Fauconnier proposed Conceptual Blending Theory, emphasizing that mapping happens across spaces via connecting counterparts in the input mental spaces. In our example, it connects one mental space contained the image of an old lady walking towards a henhouse and another mental space describing the purpose of carrying out this behavior. Then the mapping happens when the mental apparatus identifies the sound similarity and generates the intended meaning. Meanwhile, the knowledge of recognizing implicature (Xu, 2005) in pragmatic inference also plays a crucial role in processing two-part allegorical sayings. From this perspective, Chinese two-part allegorical sayings are one of the ideal languages. The successful understanding of them couldn’t be accomplished without considering how people interpret in their real usage. There are three theories relevant to interpreting of Chines two-part allegorical sayings, but what we wonder is which theory is more powerful in explaining the processing of homophonic two-part allegorical sayings in terms of various degrees? Does sound association play a crucial role in the processing? In order to answer these questions, two experiments were designed by using eye-movement instrument: experiment 1 investigated the effect of various degrees of familiarity on the processing of two different types of back parts (homophonic association/ phonography), for example, 老太太上鸡窝—奔蛋 is phonography because there is no metaphoric inference between front and back parts, but老太太上鸡窝—笨蛋 is with homophonic association because the implied meaning (笨蛋) is inferred from the words (奔蛋) through sound similarity. We asked the participants to judge the semantic relatedness between front and back parts and we found that the judgment was determined by the type of back parts, that is, the homophone facilitated the participants’ judgment because of the sound association; while phonography forced participants to infer the implied meaning of the sayings. Meanwhile, participants took longer time to process the sayings with high familiarity and made more errors in the judgment task, the reason of which might be caused by the negative effect of long-term memory. The result supported the Conceptual Metaphor theory and Conceptual Blending theory. However, participants adopted a quite different processing strategy called the on-line processing strategy when the sayings were with low familiarity. The result supported the Pragmatic Inference theory. Experiment 2 investigated how various intonations affected the judgment of semantic relatedness between front and back parts. The results showed that the characters with the same sound pattern but not with the same intonation (e.g. 笨、本、奔) exerted different influences on the judgment. Specifically, the character “本”, which does not fit into the meaning of any of the two parts, did not play a role in the processing. The result does not support the Conceptual Blending theory.
Subjects: Geosciences >> Other Disciplines of Geosciences submitted time 2019-09-09 Cooperative journals: 《干旱区研究》
Abstract： 根据流域内气象、水文站点的长期观测数据，利用线性趋势、相关系数、累积距平、Mann-kendall（M-K）突变检验等方法分析不同区域的干、湿季气候变化特征，并假定不同的气候情景组合，分析径流对气候变化的响应程度。结果表明：① 1957—2015年4个单元气温和降水量呈增加趋势；除上游外，相对湿度、平均风速和大风日数呈减小趋势，流域径流量呈增加趋势。② 气温在1996年发生突变；降水量未出现明显突变点；相对湿度在2005年左右发生突变；除下游外，平均风速在1983年发生突变；径流量于1993年发生突变，突变后径流量增加了9.08×108 m3。③ 相关性分析显示，流域径流量与湿季平均气温、平均最低（最高）气温呈极显著正相关，与湿季平均风速、大风日数和相对湿度呈负相关，除上游径流与干季降水量呈正相关外，其他区域与降水量呈负相关。④ 敏感性分析表明，当降水量不变，气温升高1 ℃，径流量增加9.06%；当气温不变，降水量增加10%，径流量减小1.67%，这主要与径流组成有关。流域77.4%的径流量来自雪冰融水补给，当降水量增加时，气温降低，减少了冰川积雪的融化，因而流域径流与气温呈正相关，与降水量呈负相关，且对气温变化更敏感。
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2019-01-28 Cooperative journals: 《计算机应用研究》
Abstract： To optimize communication efficiency and reduce the data transmission of shuffle in large-scale clusters running for MapReduce jobs, a distributed collaborative data mapping model was built based on the strategy, which is designed by replacing the communication locality by storing locality. Then the local features of jobs are extracted by random sampling and machine learning method in order to realize the effective deployment of Map tasks. Finally, the good communication links are selected based on the software define network technology due to with the global flexible control capabilities. And the Map Tasks are scheduled to such nodes. Experimental results show that it has better optimization effect on shuffle-intensive jobs. The communication delay is reduced by 4.3% to 5.8%. This solution can reduce Shuffle traffic and data migration delay. It is suitable for various scheduling strategies and network topologies.
Hits
YES
Hits
Downloads
Comment