The effect of number of baffles on flow and pressure drop on a shell side of shell-andtube heat exchangers was studied. In the present study, a set of CFD simulations using FLUENT version 17.0 from ANSYS were used to analyze the flow in the single shell and single tube pass heat exchangers consists of 20 mm diameter of tubes in staggered configuration with a variable number of baffles. The simulations were undertaken to inform on how the fluid flowed within the shell side of shell-and-tube heat exchangers. The results show that the variable number of baffles and baffle spacing in a heat exchanger strongly affect the flow pattern and pressure drop. This is consistent with other published data

Al-Mahdi, H. Y.

Ayop, S. S.

Hwey, Y. P.

Khian, N. Y.

Md Salleh, S.

Sadikin, A.

Sadikin, A. N.

Taib, I.

English

van Dijk, Dick

Franses, Philip Hans

Lucas, A (André)

EUR Research Repository

Testing for smooth transition nonlinearity in the presence of outliers

van Dijk, D.

Franses, P.H.

Lucas, A.

NARCIS 

VU Research Portal

Regime-switching models, like the smooth transition autoregressive (STAR) model are typically applied to time series of moderate length. Hence, the nonlinear features which these models intend to describe may be reflected in only a few observations.

Conversely, neglected outliers in a linear time series of moderate length may incorrectly suggest STAR type nonlinearity. In this paper we propose outlier robust tests for STAR type nonlinearity. These tests are designed such that they have a better level and power behavior than standard nonrobust tests in situations with outliers. We formally derive local and global robustness properties of the new tests. Extensive Monte Carlo simulations show the practical usefulness of the robust tests. An application to several quarterly industrial production indices illustrates that apparent nonlinearity in time series sometimes seems due to only a small number of outliers

Dijk, D.J.C. (Dick) van

Franses, Ph.H.B.F. (Philip Hans)

Lucas, A. (André)

Erasmus University Digital Repository

Testing for Smooth Transition Nonlinearity in the Presence of Outliers

UTHM Institutional Repository

PESUMA 2013 Persidangan Kebangsaan Pentadbiran Surnber Manusia IPTA Kali Pertarna Tahun 201 3,4 - 6 Jun 201 3 PENGAMBILAN DAN PEMlLlHAN STAF: PELAKSANAAN DASAR PELANTIKAN SECARA SEMENTARA BAG1 JAWATAN PENTADBIRAN Dl UNlVERSlTl TUN HUSSEIN ONN MALAYSIA MISMAN BIN HJ RAMLY, MOHD FAISALLUDDIN BIN ABDUL AZIZ, ARlAH BINTI ALIAS Bahagian Pengurusan Sumber Manusia, Universiti Tun Hussein Onn Malaysia ABSTRAK Kertas kerja ini rnernbincangkan arnalan pengarnbilan dan pernilihan staf bagi jawatan pentadbiran (Bukan Akadernik) rnerangkurni Kurnpulan Pengumsan dan Profesional serta Kurnpulan Pelaksana di Universiti Tun Hussein Onn Malaysia (UTHM). Fokus utarna adalah kepada pelaksanaan dasar pelantikan secara sernentara bagi sernua staf yang baru dilantik bagi ternpoh sekurang-kurangnya 6 bulan sebelurn dipertirnbangkan bagi tujuan lantikan secara tetap. Dasar ini telah rnula dilaksanakan oleh pihak UTHM rnulai tahun 2006, dan sehingga tahun 2012 seramai 506 orang staf yang dilantik telah rnelalui proses tersebut. Analisis deskriptif dilakukan bagi rnendapatkan gambaran ringkas arnalan pengarnbilan dan pernilihan pekerja. Dapatan kajian rnendapati pelaksanaan dasar pelantikan secara sernentara ini telah rnernberi faedah kepada kedua-dua pihak staf dan UTHM. RUJUKAN Armstrong, M. (2010). Pengurusan Modal lnsan. Itbm. Cole, A. (2012). How to manage human capital. Project Report, 2012, 15 Pages Business economics - Business Management, Corporate Governance Dessler. G. (2012). Fundamentals of human resource management: Prentice Hall. Farnham, D., & Stevens. A., (2000). Developing and implementing competence- based recruitment and selection in a social services department - A case study of West Sussex County Council.- lnternational Journal of Public Sector Management, 13(4), 369-382 Fish, A,, & Macklin, R.. (2004). Perception of executive search and advertised recruitment attributes and service quality. Personnel Review. 33(1), 30-54. Flynn. G., (1994). Attracting the right employees and keeping them. Personnel Journal, 73, 44-49. Gatewood. D., & Feild H. S., (1994). Human Resource Selection. USA: The Dryden Press. Huselid, M. A., (1994). Documenting HR's effect on company performance. HR Magazine. 39. 79-85. Min. J. C., & Kleiner, 6. H.. (2001). How to hire employees effectively. Management Research News, 24(12). 31 -38. Mohamed Makhbul, Zafir and Mohamad Hasun, Fazilah (2007). Amalan pengambilan dan pemilihan pekerja: Tinjauan ke atas firma terpilih di sektor perkilangan. lnternational Journal of Management Studies (IJMS), 14 (2). pp. 143-162. ISSN 0127-8983 Saar, E., Unt, M., Helemae, J., Oras, K., & Taht, K. (2013). What is the role of education in the recruitment process? Employers' practices and experiences of graduates from tertiary educational institutions in Estonia. Journal of Education and Wok, (ahead-of-print), 1-21. Stewart, J., (2012). Learning and Talent Development. Human Resource Management lnternational Digest, 2012 (20). Torrington, D., B Hall, L., (1991). Personnel management: A new approach. Hemel Hernpstead: Prentice Hall. 