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Articles by Wang Yong
Total Records ( 2 ) for Wang Yong
  Wang Yong , Yang Xiao-Jie and Xu Dong-Chuan
  To enhance the operational efficiency of post transportation network, a hybrid post transportation model with center location and vehicle routing problem is proposed. Some important factors, such as pick-up and delivery of packages and multi-type vehicles, are also considered in the presented model. The solution of the model is divided into two stages. In the first stage, the third-level post centers and their regions are determined. Moreover, the deliver tasks between the second-level and the third-level post centers are distributed. In the second stage, the vehicle scheduling problem of each post center is solved. The center distribution method and taboo-genetic hybrid algorithm are employed in second stages, respectively. Finally, the empirical analysis is performed with actual data of Guizhou Post. The results show that the proposed model and algorithm are valid and practical.
  Ahmad Taha Khalaf , Liu Junhua , Wang Yong , Samiah Yasmin Abdul Kadir , Jamaludin Zainol , Saeid Reza Doustjalali , Negar Shafiei Sabet , Vinothini Appalanaidu , Karim Al-Jashamy , Munira Bhuiyan and A.E. Muftah
  The mental health of students and its many possible determinants are of obvious importance. The purpose of this study was to investigate psychological health status of middle and primary schools students in China. Out of 18 middle and primary schools in Maojian area of Shiyan city, 5 school’s students, teachers and parents (543 participants) carried out a questionnaire survey in a randomized way. Achenbach child Behavior Checklist (CBCL), the Pupil Rating Scale (Revised) (PRS), conner’s Parent Symptom Questionnaire (PSQ), conner’s Teacher Rating Scale (TRS) were used and a survey designed questionnaire for this purpose. The survey investigation demonstrated that 89.29% of students are doing well they were in a healthy psychological status, sublime pursuits and cherish promising prospective with a correct outlook on life and values while the rest 10.71% of students have comparatively severe psychological problems. The major problems appeared to be indefinite purpose of study; self-reproach tendency; impulsiveness; emotion instability: feeling lonely and communicative anxiety. The survey exhibited that those students in higher grades were more prone to serious psychological problems than those in lower grades.
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