Refinements of the Pin-Based Pointwise Energy Slowing-Down Method for Resonance Self-Shielding Calculation—I: Theory

The pin-based pointwise energy slowing-down method (PSM), which is a resonance self-shielding method, has been refined to treat the nonuniformity of material compositions and temperature profile in the fuel pellet by calculating the exact collision probability in the radially subdivided fuel pellet under the isolated system. The PSM has generated the collision probability table before solving the pointwise energy slowing-down equation. It is not exact if the fuel pellet has nonuniform material compositions or temperature profile in all the subdivided regions. In the refined PSM-CPM, the pre-generated table is not required for directly calculating the collision probability in all the subdivided regions of the fuel pellet while solving the slowing-down equation. There are an advantage and a disadvantage to the method. The advantage is to exactly consider the nonuniformity of the material compositions and temperature profile in the fuel pellet. The disadvantage is the longer computing time than that of the PSM when the fuel pellet has more than five subdivided regions. However, in the practical use for UO2 pin-cells, it is still comparable for the computation time with the PSM and the conventional equivalence theory methods. In this article, using simple light water reactor 17 × 17 F A problems with a uniform material composition and temperature profile, it is demonstrated that PSMs (PSM and PSM-CPM) exhibit consistent accuracy in calculating the multiplication factor and the pin power distribution with no compromise in the computation time. More detailed accuracy assessments with various test cases, including problems representing the nonuniformity, are presented in the accompanying article.

PRE-SERVICE SCIENCE TEACHERS’ EXPERIENCES OF HOME-BASED PRACTICAL WORK UNDER EMERGENCY REMOTE TEACHING

Practical work is ubiquitous in science education, but its enactment is challenging in remote teaching contexts. The situation was exacerbated due to a moratorium on contact classes induced by the COVID-19 pandemic that necessitated strict health protocols. Home-based practical work (HBPW) became a significant option as academic institutions shifted to emergency remote teaching. The question is whether HBPW provides equivalent learning experiences in comparison to laboratory-based practical work (LBPW). This research therefore explored pre-service science teachers’ experiences of HBPW implemented at a particular South African university. Eighty-four preservice science teachers, who engaged in HBPW in a chemistry module, were purposively selected as the participants. The data were generated through individual reflections at the end of the semester. An adaption of the equivalence theory was ideal in analysing and interpreting the results. Results show that HBPW was flexible, empowering, contextualised, and enhanced active learning. New forms of interaction emerged in the absence of physical student-teacher and student-student interactions. Concerns over its ability to develop practical skills are expressed. Recommendations are made with a view to optimising HBPW. Keywords: emergency remote teaching, home-based practical work, laboratory-based practical work, pre-service science teachers, student-teacher interactions

On Translation of Puns in Sitcoms Based on Functional Equivalence Theory—Taking Yes, Minister as an Example

In situation comedies, pun is one of the most effective means of creating comic effect and takes up a considerable part. However, if incorrectly or improperly translated, it can be almost impossible for puns to get across its audience, even when the audience is somewhat capable of English. The reason is that pun, in essence, is a figure of speech, which requires certain knowledge of English literature and culture. The translation of English movies and TV series has become fairly sophisticated, but studies on the translation of pun are relatively rare. This article will introduce and study pun both in Chinese and English literature by the approach of contrast, and discuss the translation methods of puns from the perspective of functional equivalence theory; and then it will take the Chinese subtitle of the famous situation comedy series Yes, Minister as examples to analyze and study the translation methods and strategies of puns used in situation comedies.

On Subtitle Translation of Chinese Costume Drama, The Longest Day in Chang’an

China’s enhanced international influence creates a good environment for spreading its traditional culture overseas. In recent years, Chinese subtitle translation is no longer restricted to translating foreign works into Chinese, with costume drama subtitle translation gaining more and more attention. However, relevant research in China is inadequate, and differences between Chinese and English aggravate this difficulty, which may be solved by studying and analyzing the subtitle translation of The Longest Day in Chang'an under the guidance of Nida's functional equivalence theory from the perspectives of lexical equivalence, syntactic equivalence, and stylistic equivalence, so as to provide the guidance to translators to render a proper translation both in the conveying of information as well as ensuring readers' response.

Methodology for Discontinuity Factors Generation for Simplified P3 Solver Based on Nodal Expansion Formulation

The Simplified Spherical Harmonic (SPN) approximation was first introduced as a three-dimensional (3D) extension of the plane-geometry Spherical Harmonic (PN) equations. A third order SPN (SP3) solver, recently implemented in the Nodal Expansion Method (NEM), has shown promising performance in the reactor core neutronics simulations. This work is focused on the development and implementation of the transport-corrected interface and boundary conditions in an NEM SP3 solver, following recent published work on the rigorous SPN theory for piecewise homogeneous regions. A streamlined procedure has been developed to generate the flux zero and second order/moment discontinuity factors (DFs) of the generalized equivalence theory to minimize the error introduced by pin-wise homogenization. Moreover, several colorset models with varying sizes and configurations are later explored for their capability of generating DFs that can produce results equivalent to that using the whole-core homogenization model for more practical implementations. The new developments are tested and demonstrated on the C5G7 benchmark. The results show that the transport-corrected SP3 solver shows general improvements to power distribution prediction compared to the basic SP3 solver with no DFs or with only the zeroth moment DF. The complete equivalent calculations using the DFs can almost reproduce transport solutions with high accuracy. The use of equivalent parameters from larger size colorset models show a slightly reduced prediction error than that using smaller colorset models in the whole-core calculations.

English Sociological Terminology Based On Functional Equivalence Theory

Objectives: In the practice of translating English, there are often situations that may lead to missing words. In this case, a computer technology is needed to improve the translation studies of sociological terms in English. This time, based on the characteristics of Internet network data, intelligent robot information is extracted. Methods: According to the knowledge ontology constructed this time, based on the functional equivalence theory, a method based on the automatic construction of the ontology library in the party building domain is proposed. Results: In order to verify the proposed method algorithm, the example study of some sociological terms conceptual terms above the interactive encyclopedia is studied by the ontology created by encyclopedia resources, such as father/sub-relationship, class and instance relationship and attribute relationship, and a total of 72474 relationships are obtained through the final statistical study. Conclusion: From the overall analysis, it can be seen that the sociological terminology research of English computer network based on functional equivalence theory can achieve a good classification effect.

Metabolism drives demography in an experimental field test

Metabolism should drive demography by determining the rates of both biological work and resource demand. Long-standing “rules” for how metabolism should covary with demography permeate biology, from predicting the impacts of climate change to managing fisheries. Evidence for these rules is almost exclusively indirect and in the form of among-species comparisons, while direct evidence is exceptionally rare. In a manipulative field experiment on a sessile marine invertebrate, we created experimental populations that varied in population size (density) and metabolic rate, but not body size. We then tested key theoretical predictions regarding relationships between metabolism and demography by parameterizing population models with lifetime performance data from our field experiment. We found that populations with higher metabolisms had greater intrinsic rates of increase and lower carrying capacities, in qualitative accordance with classic theory. We also found important departures from theory—in particular, carrying capacity declined less steeply than predicted, such that energy use at equilibrium increased with metabolic rate, violating the long-standing axiom of energy equivalence. Theory holds that energy equivalence emerges because resource supply is assumed to be independent of metabolic rate. We find this assumption to be violated under real-world conditions, with potentially far-reaching consequences for the management of biological systems.