The container loading problem (CLP) is a well-known NP-hard problem. Due to the computation complexity, heuristics is an often-sought approach. This article proposes two heuristics to pack homogeneous rectangular boxe...The container loading problem (CLP) is a well-known NP-hard problem. Due to the computation complexity, heuristics is an often-sought approach. This article proposes two heuristics to pack homogeneous rectangular boxes into a single container. Both algorithms adopt the concept of building layers on one face of the container, but the first heuristic determines the layer face once for all, while the second treats the remaining container space as a reduced-sized container after one layer is loaded and, hence, selects the layer face dynamically. To handle the layout design problem at a layer's level, a block-based 2D packing procedure is also developed. Numerical studies demonstrate the efficiency of the heuristics.展开更多
The study is conducted to examine the differences of gender perception among educators who are teaching in local higher learning institutions in Malaysia, in viewing their roles as the ＇~teacher＂. Several higher lea...The study is conducted to examine the differences of gender perception among educators who are teaching in local higher learning institutions in Malaysia, in viewing their roles as the ＇~teacher＂. Several higher learning institutions were randomly targeted. Several researchers were involved in the data collection by means of using questionnaires in the survey over a period of several weeks. The questionnaires were used to fred out about their academic and professional backgrounds, requiring them to list their roles pertinent to their experiences in teaching, ranked them and provided the rationale behind the choices made. Twenty-five samples were collected to scrutinize the data by categorizing the information according to gender and teaching experiences and recording the frequencies of answers. From the study, it is found that regardless of gender and teaching experiences, most participants would consider themselves as ＂Provider of knowledge＂, followed by ＂N^r＂, especially those who are relatively new in teaching. There is also an indication that teacher＇s experiences and gender might affect their perception in mirroring themselves. A larger scale of study is needed in validating the findings of this study for it to be empirical, thus promoting in-depth investigations in viewing whether gender and cultural background may be vital factors that has profound effects towards their professionalism. It is hoped that future studies will shed some light to this rather controversial claims.展开更多
This article studies the situations of international students＇ ultimate attainment in Chinese structural auxiliary word ＂De＂ （的） acquisition through questionnaires. And we found whether international students ca...This article studies the situations of international students＇ ultimate attainment in Chinese structural auxiliary word ＂De＂ （的） acquisition through questionnaires. And we found whether international students can use all types attributive ＂De＂ （的） correctly is mainly affected by the following two factors： （1） Influenced by frequency of attribute type appears and （2） affected by its own clarity of grammatical rules. We also noticed that the international students who are able to discriminate the ＂De＂ （的） and ＂Di＂ （地） in the predicates position better than the ＂De＂ （的） and ＂Di＂ （地） in the objects position.展开更多
In the field of second language acquisition, an increasing amount of research has been conducted on learner＇s beliefs. Few empirical studies, however, have been focused on students＇ conceptions of learning English ...In the field of second language acquisition, an increasing amount of research has been conducted on learner＇s beliefs. Few empirical studies, however, have been focused on students＇ conceptions of learning English （COLE）. This study aims to assess conceptions of learning particularly in the domain of English. Data were collected through the COLE questionnaire among 284 college students in China. Seven factors of COLE are identified, such as ＂memorizing＂, ＂testing＂, ＂drill and practice＂, ＂increasing knowledge＂, ＂understanding＂, ＂application＂, and ＂seeing in a new way＂. These findings also provide some pedagogical implications for English language instructors and researchers.展开更多
基金the Natural Sciences and Engineering Research Council of Canada (NSERC) under the Discovery Grant Program
文摘The container loading problem (CLP) is a well-known NP-hard problem. Due to the computation complexity, heuristics is an often-sought approach. This article proposes two heuristics to pack homogeneous rectangular boxes into a single container. Both algorithms adopt the concept of building layers on one face of the container, but the first heuristic determines the layer face once for all, while the second treats the remaining container space as a reduced-sized container after one layer is loaded and, hence, selects the layer face dynamically. To handle the layout design problem at a layer's level, a block-based 2D packing procedure is also developed. Numerical studies demonstrate the efficiency of the heuristics.
文摘The study is conducted to examine the differences of gender perception among educators who are teaching in local higher learning institutions in Malaysia, in viewing their roles as the ＇~teacher＂. Several higher learning institutions were randomly targeted. Several researchers were involved in the data collection by means of using questionnaires in the survey over a period of several weeks. The questionnaires were used to fred out about their academic and professional backgrounds, requiring them to list their roles pertinent to their experiences in teaching, ranked them and provided the rationale behind the choices made. Twenty-five samples were collected to scrutinize the data by categorizing the information according to gender and teaching experiences and recording the frequencies of answers. From the study, it is found that regardless of gender and teaching experiences, most participants would consider themselves as ＂Provider of knowledge＂, followed by ＂N^r＂, especially those who are relatively new in teaching. There is also an indication that teacher＇s experiences and gender might affect their perception in mirroring themselves. A larger scale of study is needed in validating the findings of this study for it to be empirical, thus promoting in-depth investigations in viewing whether gender and cultural background may be vital factors that has profound effects towards their professionalism. It is hoped that future studies will shed some light to this rather controversial claims.
文摘This article studies the situations of international students＇ ultimate attainment in Chinese structural auxiliary word ＂De＂ （的） acquisition through questionnaires. And we found whether international students can use all types attributive ＂De＂ （的） correctly is mainly affected by the following two factors： （1） Influenced by frequency of attribute type appears and （2） affected by its own clarity of grammatical rules. We also noticed that the international students who are able to discriminate the ＂De＂ （的） and ＂Di＂ （地） in the predicates position better than the ＂De＂ （的） and ＂Di＂ （地） in the objects position.
文摘In the field of second language acquisition, an increasing amount of research has been conducted on learner＇s beliefs. Few empirical studies, however, have been focused on students＇ conceptions of learning English （COLE）. This study aims to assess conceptions of learning particularly in the domain of English. Data were collected through the COLE questionnaire among 284 college students in China. Seven factors of COLE are identified, such as ＂memorizing＂, ＂testing＂, ＂drill and practice＂, ＂increasing knowledge＂, ＂understanding＂, ＂application＂, and ＂seeing in a new way＂. These findings also provide some pedagogical implications for English language instructors and researchers.
