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Fulltext An experimental validation and optimisation tool path strategy for thin walled structure

Alsultaney, Hazem K., Mohd Khairol Anuar Mohd Ariffin, B.T. Hang Tuah Baharudin, Aidy Ali, Faizal Mustapha

Pertanika Journal of Science & Technology, 2011;19(2):365-371.
MyJurnal

This work was carried out with the aim to optimise the tool path by simulating the removal of material in a finite element environment which is controlled by a genetic algorithm (GA). To simulate the physical removal of material during machining, a finite element model was designed to represent a thin walled workpiece. The target was to develop models which mimic the actual cutting process using the finite element method (FEM), to validate the developed tool path strategy algorithm with the actual machining process and to programme the developed algorithm into the software. The workpiece was to be modelled using the CAD (ABAQUS CAE) software to create a basic geometry co-ordinate system which could then be used to create the finite element method and necessary requirement by ABAQUS, such as the boundary condition, the material type, and the element type.

Matched MeSH terms: Physical Examination
Fulltext Septage treatment using pilot vertical-flow engineered wetlands system

Jong, V. S. W., Tang, F. E.

Pertanika Journal of Science & Technology, 2014;22(2):613-625.
MyJurnal

This paper presents a two-staged, pilot-scale vertical flow engineered wetland-based septage treatment system (VFEWs), which was designed and constructed in Curtin University Sarawak Campus to determine the system efficiency in treatment of septage. The treatment system consists of storage tanks, vertical flow wetlands, and a network of influent and effluent distribution pipes. The first stage of the VFEWs treatment system consists of three vertical flow wetlands placed in parallel to provide pre-treatment to raw septage to reduce solids and organic matters mainly by physical filtration and sedimentation processes. The percolate from the first stage is then further treated in the second stage, with four vertical flow wetlands, each with variation in operational regime and substrate (filter) type. The influences of various system and application-related parameters such as substrate material, presence of plants and plant types, and septage feeding practices (solid loading rate (SLR), batch and intermittent loading, and frequency of daily feeding) on pollutant removal efficiency were studied. Results from the first stage wetlands indicate that the removal of total solids and organic matter (BOD and COD) from the raw septage is promising (> 80%) at both SLR of 100 kg TS/m2 .yr and 250 kg TS/m2 .yr, respectively. However, a higher SLR decreased the average NH3-N removal efficiency. The findings on bed clogging assessment during the study period are also presented in this paper. Validation and expansion of these results are carried out with ongoing assessments on the system performance.

Matched MeSH terms: Physical Examination
Fulltext Transmission lines modelling based on RLC passive and active filter design

Ahmed Qasim Turki, Nashiren Farzilah Mailah, Ahmed H. Sabry

Pertanika Journal of Science & Technology, 2017;25(102):235-242.
MyJurnal

This paper presents a transmission line (TL) modelling which is based upon vector fitting algorithm
and RLC passive filter design. Frequency Response Analysis (FRA) is utilised for behaviour prediction and fault diagnosis. The utilities of the measured FRA data points need to be enhanced with suitable modelling category to facilitate the modelling and analysis process. This research proposes a new method for modelling the transmission line based on a rational approximation function which can be extracted through the Vector Fitting (VF) method, based on the frequency response measured data points. A set of steps needs to be implemented to achieve this by setting up an extracted partial fraction approximation, which results from a least square RMS error via VF. Active and passive filter design circuits are used to construct the model of the Transmission line. The RLC design representation was implemented for modelling the system physically while MATLAB Simulink was used to verify the results.

Matched MeSH terms: Physical Examination
The unusual traumatic locked young knee

Mohd Miswan MF, Latiff Alsagoff S, Muhamad Effendi F, Ibrahim MI

Malays Fam Physician, 2019;14(2):26-28.
PMID: 31827732

Locked knee is an orthopaedic condition requiring urgent treatment. Although the condition can be diagnosed via history, physical examination and imaging studies, the cause of the mechanical obstruction may only be apparent during arthroscopic examination of the knee joint. It is known that imaging plays a role in evaluating the integrity of intra-articular structures, however in some atypical cases, imaging cannot identify the definitive cause of locked knee. Here we report on two cases of locked knee, due to uncommon conditions which were unobservable via normal imaging studies.

Matched MeSH terms: Physical Examination
Fulltext Pengurusan elemen psikologikal sebagai persediaan menghadapi bencana: satu kajian kualitatif terhadap mangsa banjir di Kelantan

Norizan Y

Jurnal Psikologi Malaysia, 2016;30:74-81.

Disaster is that which stimulates a pronounced effect on the one who experiences it. Not only does it result in a physical effect but also a significant psychological repercussion on the victim. The bulk of disaster management researches give too great an emphasis on the physical outlook such as property and health, relative to the psychological aftermath and its management aspect. This research has taken the qualitative approach through an extensive interview with five victims of the flash flood catastrophe in Kelantan to identify the sustained psychological effect as well as how the management of psychological support aspect can be of assistance for the victims. The acquisition of the research findings encompassed several themes namely sustained emotion theme, sustained psychological issue theme along with management of psychological victim aspect. The outcome of the resulting theme corroborated with the disaster management model via three stages namely, induction, identification and assessment, and finally, development and preservation.

Matched MeSH terms: Physical Examination
Fulltext Hospital disaster preparedness-the real situation on 2014 flood disaster

Norsyazana Ahmad Zamree, Suzyrman Sibly, Noor Azzah Said

Education in Medicine Journal, 2018;10(4):1-11.
MyJurnal

Floods are known to be commonly occurring natural disasters in most part of the world. In 2014, the
east coast of Peninsular Malaysia was affected by the worst flood ever recorded in history. The worst
flood affected area were Kelantan, Terengganu and Pahang. The 2014 flood caused physical and
monetary losses amounting nearly millions of dollars. Among the worst hit infrastructures in 2014 flood
disaster were hospitals. This has led to the realization of hospital disaster preparedness and management
is important which needs to be closely monitored and addressed. This paper investigates the disaster
preparedness level of selected hospitals affected by flood disasters in Kelantan. Guided interviews with
the flood-affected hospital disaster committees were carried out and summarized in a summary table to
give a clear picture of the level of hospital disaster preparedness during the 2014 flood disaster. The
results show that despite the existence of disaster action plan and protocols there is no standard disaster
preparedness model being used by hospitals.

Matched MeSH terms: Physical Examination
The synthesis and decomposition of signals and its application in subei basin exploration

Xiangsheng Bao, Quanwen Liu, Haiyan Zhou

Sains Malaysiana, 2017;46:2169-2177.

Subei basin is the most promising onshore oil and gas bearing basin in South China. With the deepening of exploration, subtle hydrocarbon reservoirs have gradually become the major target of exploration. Seismic record often shows low signal to noise ratio (SNR), resulting that conventional seismic records have three shortcomings in the identification of subtle reservoirs: difficult to identify small faults; difficult to show the distribution law of sand body; and difficult to find traps. In order to solve this problem, we conducted the research on signal synthesis and decomposition. The research results showed that seismic record of different frequency bands can be restored from original seismic record and both of them contain real stratigraphic information. Based on this, when a certain band or several bands in the original seismic record is affected by noise and result in the reduction of SNR of seismic record, seismic information seriously affected by noise can be abandoned, leaving only less affected seismic information to obtain seismic record with higher SNR. In the collection of actual seismic record, the low and high band seismic information is seriously affected by noise, while medium-band seismic information is less affected. Therefore, based on this, the medium-band seismic information can be restored from the original seismic record to be new record, which is called predominant frequency band seismic record. In this paper, based on the research result, the predominant frequency band seismic record was applied to the two areas of Subei basin and the result showed the research result can be used as a good instruction on well placement and the improvement of drilling success rate.

Matched MeSH terms: Physical Examination
Non-seismic geophysical prospecting model of beiya gold mine in western yunnan province

Jian Yang, Qiao Wang, Shengxian Liang, Jing Guo, Muhammad Aqeel Ashraf

Sains Malaysiana, 2017;46:2149-2162.

According to the basic rules and characteristics of the gold-polymetallic deposits of Beiya gold mine area in terms of mineralization and ore controlling, it is concluded that skarn deposit is the main ore deposit type in this area and the geological conditions are analyzed by the statistics of the physical parameters. Then, the tectonic, rocks, stratum, ore geophysical models have been treated by the forward modeling numerical simulation and the results are analyzed comprehensively. Based on the forward modeling results, combined with the relevant physical differences, the principle and exploration method test and research for the comprehensive geophysical exploration technology has been carried out, covering the induced polarization and magnetic prospecting for the ore body as well as the indirect geophysical exploration method by means of plane gravity data, audio-magnetotelluric sounding for rock mass and tectonics, the mineralization mode-physical forward modeling - geophysical exploration mode has been established and good results have been achieved. Therefore, a location forecast method has been put forward for the concealed skarn type Fe-Au deposit which is adaptive to the mineralized geological background of Beiya and other similar areas.

Matched MeSH terms: Physical Examination
Fulltext A compact silicon grating coupler based on hollow tapered spot-size converter

Asaduzzaman M, Bakaul M, Skafidas E, Khandokar MRH

Sci Rep, 2018 02 07;8(1):2540.
PMID: 29416080 DOI: 10.1038/s41598-018-20875-3

A new compact silicon grating coupler enabling fibre-to-chip light coupling at a minimized taper length is proposed. The proposed coupler, which incorporates a hollow tapered waveguide, converts the spot-size of optical modes from micro- to nano-scales by reducing the lateral dimension from 15 µm to 300 nm at a length equals to 60 µm. The incorporation of such a coupler in photonic integrated circuit causes a physical footprint as small as 81 µm × 15 µm with coupling efficiency and 3-dB coupling bandwidth as high as 72% and 69 nm respectively.

Matched MeSH terms: Physical Examination
Fulltext Reversible structure manipulation by tuning carrier concentration in metastable Cu2S

Tao J, Chen J, Li J, Mathurin L, Zheng JC, Li Y, et al.

Proc Natl Acad Sci U S A, 2017 09 12;114(37):9832-9837.
PMID: 28855335 DOI: 10.1073/pnas.1709163114

The optimal functionalities of materials often appear at phase transitions involving simultaneous changes in the electronic structure and the symmetry of the underlying lattice. It is experimentally challenging to disentangle which of the two effects--electronic or structural--is the driving force for the phase transition and to use the mechanism to control material properties. Here we report the concurrent pumping and probing of Cu2S nanoplates using an electron beam to directly manipulate the transition between two phases with distinctly different crystal symmetries and charge-carrier concentrations, and show that the transition is the result of charge generation for one phase and charge depletion for the other. We demonstrate that this manipulation is fully reversible and nonthermal in nature. Our observations reveal a phase-transition pathway in materials, where electron-induced changes in the electronic structure can lead to a macroscopic reconstruction of the crystal structure.

Matched MeSH terms: Physical Examination
Examining the Range of Motion of the Cervical Spine: Utilising Different Bedside Instruments

Sukari AAA, Singh S, Bohari MH, Idris Z, Ghani ARI, Abdullah JM

Malays J Med Sci, 2021 Apr;28(2):100-105.
PMID: 33958964 DOI: 10.21315/mjms2021.28.2.9

Background: This paper outlines a summary of examination technique to identify the range of movement of the cervical spine. Due to common difficulties in obtaining tools for cervical examination within the district, a standardised compilation of easy-to-replicate examination techniques are provided using different tools.
Methods: Bedside instruments that can be used includes a measuring tape, compass, goniometer, inclinometer and cervical range of motion (CROM) instrument.
Discussion: Cervical flexion-extension, lateral flexion and rotation will be assessed with bedside instruments. This would aid in increasing accuracy and precision of objective measurement while conducting clinical examination to determine the cervical range of motion.

Matched MeSH terms: Physical Examination
Importance of a thorough examination

Pau WS, Tan KK

Pediatr Infect Dis J, 2008 Jun;27(6):569-70.
PMID: 18449061 DOI: 10.1097/INF.0b013e318168db08

Scrub typhus is a common cause of febrile illness among children from rural regions in tropical countries. We described 2 cases of scrub typhus with an eschar localized in the genitalia that was missed during the routine medical examination of a febrile child.

Matched MeSH terms: Physical Examination*
Standardized translated instruction versus spontaneously translated instruction: Test-retest and interrater reliability of a hand function test

Lim YX, Chai SC

J Hand Ther, 2020 03 04;33(4):553-561.
PMID: 32143983 DOI: 10.1016/j.jht.2019.09.001

STUDY DESIGN: Cross-sectional study.
INTRODUCTION: Adhering to test administration and standardized instructions is important for attainment of accurate and reliable results in performance-based tests.
PURPOSE OF THE STUDY: To determine test-retest and interrater reliability of standardized translated instruction (St-TI) and spontaneously translated instruction (Sp-TI) of a hand function test.
METHODS: Four raters and seventy-two subjects were divided into 2 groups: St-TI group, direct administration of the Hong Kong Chinese version of the Jebsen Hand Function Test to subjects by raters; and Sp-TI group, spontaneously translating the Jebsen-Taylor Hand Function Test from English into Chinese by raters. Test-retest and interrater reliability were calculated based on instruction time by the rater and performance time by the subject.
RESULTS: Test-retest and interrater reliability of instruction time by rater for St-TI has intraclass correlation coefficient of 0.35 to 0.70 and 0.24 to 0.55, respectively, whereas that for Sp-TI was -0.50 to 0.18 and -0.09 to 0.51, respectively. Test-retest and interrater reliability of performance time by subject for St-TI was 0.56 to 0.84 and 0.33 to 0.78, respectively, whereas that for Sp-TI was 0.54 to 0.87 and 0.35 to 0.77, respectively. Sp-TI had two test-retest minimal detectable change percent values that fell within the acceptable range (subtest 3 = 21.9% and subtest 6 = 25.7%).
CONCLUSION: Instruction time by rater for Jebsen-Taylor Hand Function Test subtests had generally poor to moderate test-retest and interrater reliability for both St-TI and Sp-TI. Performance time by subject generally had moderate to good reliability, except for St-TI with poor to good interrater reliability.

Matched MeSH terms: Physical Examination*
Fulltext Common laboratory tests for rheumatological disorders: how do they help the diagnosis?

Das Gupta E

Malays Fam Physician, 2009;4(2-3):48-50.
PMID: 25606162 MyJurnal

No screening test is ideal for detecting rheumatic diseases; diagnosis depends on appropriate history and thorough physical examination. Sometimes, laboratory investigations may be useful in confirming or ruling out rheumatic disease after a clinical diagnosis is considered. Once a rheumatic disease has been diagnosed, certain laboratory tests can help in assessing prognosis or determining the extent of the disease. Laboratory tests may also help the physician monitor certain rheumatic diseases, guide treatment or assess potential drug toxicity.

Matched MeSH terms: Physical Examination
Fulltext Unsteady stagnation-point flow and heat transfer of a special third grade fluid past a permeable stretching/shrinking sheet

Naganthran K, Nazar R, Pop I

Sci Rep, 2016;6:24632.
PMID: 27091085 DOI: 10.1038/srep24632

In this paper, the unsteady stagnation-point boundary layer flow and heat transfer of a special third grade fluid past a permeable stretching/shrinking sheet has been studied. Similarity transformation is used to transform the system of boundary layer equations which is in the form of partial differential equations into a system of ordinary differential equations. The system of similarity equations is then reduced to a system of first order differential equations and has been solved numerically by using the bvp4c function in Matlab. The numerical solutions for the skin friction coefficient and heat transfer coefficient as well as the velocity and temperature profiles are presented in the forms of tables and graphs. Dual solutions exist for both cases of stretching and shrinking sheet. Stability analysis is performed to determine which solution is stable and valid physically. Results from the stability analysis depict that the first solution (upper branch) is stable and physically realizable, while the second solution (lower branch) is unstable.

Matched MeSH terms: Physical Examination
Fulltext Wind-driven development and transport of Gymnodinium catenatum blooms along the coast of Fujian, China

Zhang C, Lim PT, Li X, Gu H, Li X, Anderson DM

Reg Stud Mar Sci, 2020 Sep;39.
PMID: 33241099 DOI: 10.1016/j.rsma.2020.101397

Gymnodinium catenatum is a cosmopolitan, bloom-forming dinoflagellate known to produce a suite of potent paralytic shellfish poisoning (PSP) toxins. Here, we revisit two major blooms of G. catenatum along the Fujianese Coast, China, in 2017 and 2018. The impact area of the 2017 bloom was larger than that of the 2018 event. Field sampling and remote satellite sensing revealed that alongshore transport driven by the southwest wind, as well as physical accumulation driven by the northeast wind, played important roles in the development and distribution of the two bloom events. The relationship between wind-induced hydrodynamic conditions and the unprecedented HAB events established in this study adds greatly to our understanding of algal bloom dynamics along the Fujianese coast. These results improve our ability to detect, track, and forecast G. catenatum blooms, thereby potentially minimizing the negative impacts of future HAB events.

Matched MeSH terms: Physical Examination
Fulltext Do Termitaria Indicate the Presence of Groundwater? A Case Study of Hydrogeophysical Investigation on a Land Parcel with Termite Activity

Ahmed JB, Salisu A, Pradhan B, Alamri AM

Insects, 2020 Oct 24;11(11).
PMID: 33114307 DOI: 10.3390/insects11110728

Termite nests have long been suggested to be good indicators of groundwater but only a few studies are available to demonstrate the relationship between the two. This study therefore aims at investigating the most favourable spots for locating groundwater structures on a small parcel of land with conspicuous termite activity. To achieve this, geophysical soundings using the renowned vertical electrical sounding (VES) technique was carried out on the gridded study area. A total of nine VESs with one at the foot of a termitarium were conducted. The VES results were interpreted and assessed via two different techniques: (1) physical evaluation as performed by drillers in the field and (2) integration of primary and secondary geoelectrical parameters in a geographic information system (GIS). The result of the physical evaluation indicated a clear case of subjectivity in the interpretation but was consistent with the choice of VES points 1 and 6 (termitarium location) as being the most prospective points to be considered for drilling. Similarly, the integration of the geoelectrical parameters led to the mapping of the most prospective groundwater portion of the study area with the termitarium chiefly in the center of the most suitable region. This shows that termitaria are valuable landscape features that can be employed as biomarkers in the search of groundwater.

Matched MeSH terms: Physical Examination
Fulltext Experimental data on the properties of pelletization of palm kernel shell using sago starch and sodium acetate

Halim SA, Razali N, Mohd N

Data Brief, 2020 Dec;33:106535.
PMID: 34026955 DOI: 10.1016/j.dib.2020.106535

Pellet mixed with 5 wt% and 10 wt% of binders was tested. The pelleting process was performed using a pellet mill operated at 100 °C and at 50 MPa. The physical and chemical characteristics including hardness, high heating value and proximate analysis of pellet produces were obtained using durometer and through thermographic analysis and the results were reported in this paper. Bulk and unit density were determined according to ASABE standard. The dataset presented here are the data of palm kernel shell pellet prepared using two types of binder; (1) sago starch and (2) sodium acetate. The pelletization of palm kernel shell aimed to increase the density and strength of the palm kernel shell pellet and consequently provide better thermal degradation characteristics.

Matched MeSH terms: Physical Examination
Fulltext Investigations on physical characteristics of three-dimensional coil structure for MEMS magnetometer

N. Sulaiman, B. Y. Majlis

ASM Science Journal, 2013;7(1):27-36.
MyJurnal

Measurement of low magnetic field has played an important role in many electronics applications such as navigation, military, non-destructive test, traffic detection as well as medical diagnosis and treatment. The presence of magnetic field, particularly its strength and direction, can be measured using magnetometer. There are many types of magnetometers being investigated through the years and one of the prominent types is fluxgate magnetometer. The main components of fluxgate magnetometer consisting of driving coils, sensing coils and magnetic core are developed by MEMS silicon processing technology. In this paper, an investigation on physical characteristics of the three-dimensional coil structure for a micro-scaled fluxgate magnetometer is presented. The physical characteristics such as width of the coil, distance between successive coils, and gap between the top and bottom coils which would influence the magnetic energy in magnetometer is discussed. In this work, finite-element method simulations to investigate the physical characteristics of the sensing coils were carried out, where the parameter of interest is the coils’ inductance as well as the magnetic flux density. Based on the simulation results, the varying of physical characteristics of the coils had its effects particularly in coil inductance, magnetic flux density, and magnetic energy. It could also be seen that the simulated results agreed with the theoretical aspects of magnetism in a coil. From the investigations, suitable coil dimensions were proposed.

Matched MeSH terms: Physical Examination
Fulltext Lenra as compatibilizer in NR/HDPE blends

Dahlan Mohd, Mahathir Mohamed

Journal of Nuclear and Related Technologies, 2006;2006(1):9-17.
MyJurnal

Polymer blends of 60/40 NR/HDPE were prepared using Brabender PL2000 Plasticorder with 60g capacity. The blends were added with radiation-sensitive natural rubber (NR)-based compatibilizer, known as LENRA. They were irradiated with electron-beam radiation at various doses. The efficacy of the compatibilizer was monitored by measuring various properties of the blends such as physical and dynamic mechanical properties including morphological studies by electron microscopic technique. Early results show that the addition of LENRA improves the properties of the TPNR blends.

Matched MeSH terms: Physical Examination

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