17 research outputs found
Implikasi ISO terhadap pengurusan masa kendiri pensyarah di UTHM
l s u p e n s y a r a h d i b e r i k a n beban k e r j a y a n g b e r l e b i h a n , p e n d e k a t a n - p e n d e k a t a n
y a n g b a r u untuk d i g u n a k a n , kualiti k e r j a b e r p a n d u k a n s t a n d a r d , p e n g u r u s a n m a s a y a n g
lebih c e k a p d a n e f i s i e n d a n p e n g u r u s a n dari segi p e n g a j a r a n dan p e m b e l a j a r a n s e r i n g
d i b a n g k i t k a n Matlaniat k a j i a n ini adaiali untuk m e n g e n a i pasti implikasi a m a l a n ISO
t e r h a d a p p e n g u r u s a n masa kendiri p e n s y a r a h d a l am memenuhi k e p e r l u a n sebagai
p e n d i d i k dan a n g g o t a d a l am o r g a n i s a s i y a n g p e r l u m e m a t u h i p i a w a i a n I SO Kajian ini
m e n g k a j i d e n g a n m e n d a l am mengenai c a b a r a n - c a b a r a n y a n g d i h a d a p i oleh p e n s y a r a h
b e r l a n d a s k a n dua a s p e k iaitu p e n g u r u s a n y a n g m e n g a m a l k a n p e n d e k a t a n s i s t em dan
p e n g l i b a t a n a n g g o t a o r g a n i s a s i Seramai 85 o r a n g p e n s y a r a h dari Fakulti P e n d i d i k a n
T e k n i k a l ( F P T e k ) , Fakulti P e n g u r u s a n T e k n o l o g i ( F P T ) dan Fakulti Teknologi
M a k l u m a t dan M u l t i m e d i a ( F T M M ) di U n i v e r s i t i Tun H u s s e i n O n n M a l a y s i a ( U T H M )
t e r l i b a t d a l am k a l i a n mi Data y a n g d i p e r o l e h dari r e s p o n d e n telah d i a n a l i s i s
m e n g g u n a k a n statistik d e s k r i p t i f untuk m e m p e r o l e h nilai s k o r min bagi s e t i a p item
Hasil k a j i a n m e n u n j u k k a n a m a l a n I SO di U T H M telah m e m b e n implikasi p o s i t i f k e p a d a
p e n g u r u s a n masa kendiri p e n s y a r a h Selain dari itu, r e s p o n d e n turut b e r s e t u j u ( s k o r nun
k e s e l u r u h a n ^ 4 . 1 2 ) b a h a w a d u a a m a l a n I SO y a n g d i k a j i s e c a r a s i g n i f i k a n
m e m p e n g a r u h i p r o s e s p e n g u r u s a n masa merek
Flexinol as Actuator for a Humanoid Finger - Possibilities and Challenges
Robots become more and more common in our every day lives as technology develops. Robots are normally actuated by pneumatics, hydraulics or servo motors. These technologies are mature and widely used, but other less commonly used actuators are also available. Among these we find the artificial muscle fiber Flexinol which belongs to a class of materials known as Shape Memory Alloys.
This thesis aims to implement the artificial muscle fiber Flexinol as actuator for a humanoid finger. The first part of the thesis focuses on testing of single Flexinol wires to determine in what degree these are suitable for long term use as actuators. A test frame is built to investigate contraction speed, force and displacement for wires in different setups. Among these are tests with a small dead weight, a large dead weight, an antagonistic setup and a setup with a spring working as a passive antagonistic force.
The second part of the thesis makes use of Flexinol as actuator when designing and prototyping a humanoid finger. The human finger is used as inspiration in this part, applying tendons and muscles in a human-like way. The finger is designed with CAD-software and then printed in plastic. It is then assembled with tendons and actuated with three Flexinol wires. Finally, an attempt to control the humanoid finger is done.
Specially designed software and hardware is developed through the thesis to implement working experiments. Software for both a laboratory computer and a microcontroller is written to control the system and to collect sensory data respectively
An Investigation and Evaluation of Acoustic Myography
The study of vibrations from muscles (AMG) has recently been used to monitor force production from skeletal muscle both in vivo and in vitro. It has been found that the amplitude of the vibrations increases with an increase in force, similar to the relationship between the electrical activity (EMG) from the muscle and force. During fatiguing isometric contractions the amplitude of the vibrations have been found to follow the force of the contraction more accurately than the amplitude of the EMG signal. It has been proposed that the vibrations from muscle would be an easy and convenient method of monitoring contractions of skeletal muscle. The series of experiments described in the following pages investigated the relationships of force, EMG and AMG, using isometric contractions of biceps and triceps brachii, first dorsal interosseus, adductor pollicis and rectus femoris. It was found that in all cases increases in force produced increases in both EMG and AMG, although the results from the fatiguing contractions were less conclusive, with the AMG amplitude being very variable. The median frequencies of the EMG and AMG signals were also analysed. The EMG frequencies were much higher than the AMG frequencies, being around 60- 100 Hz compared with 12-15 Hz, and much clearer changes in EMG frequency were seen with changes in force. The EMG median frequency increased with the increase in force, and showed decreases during the fatiguing contractions. The AMG median frequency showed no distinct trends remaining around the same value throughout the contractions. In conclusion, AMG is probably not as useful as was originally thought, due to the variability of the signal. However, it may prove to be a diagnostic aid when used in conjunction with the more conventionally used EMG
Topical Workshop on Electronics for Particle Physics
The purpose of the workshop was to present results and original concepts for electronics research and development relevant to particle physics experiments as well as accelerator and beam instrumentation at future facilities; to review the status of electronics for the LHC experiments; to identify and encourage common efforts for the development of electronics; and to promote information exchange and collaboration in the relevant engineering and physics communities
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Novel mouse models of Col-1 related overlap syndrome, with late onset osteoarthritis
Collagen I is a member of the Collagen superfamily of proteins, the proteins most abundant in mammals, and an essential component of bones, teeth, skin and connective tissues including ligaments and tendons. COL1A1 and COL1A2 are the genes that code for the collagen I alpha chains, α1 and α2 respectively. Collagen I is a heterotrimer of these two alpha chains, formed of two α1 and one α2 chains. Diseases resulting from genetic mutations in COL1A1 and COL1A2, include osteogenesis imperfecta (OI) and Ehlers-Danlos syndrome (EDS), however, mutations in these genes have not been implicated in the development of osteoarthritis (OA).
At MRC Harwell Institute, large-scale mutagenesis screens, including the Harwell Ageing Screen, have been used to identify novel models of disease and establish links between genes and diseases. The mutagenised mouse lines MP-107 and TM44 were identified in such screens, exhibiting early-onset mild bone abnormalities at the pelvis and elbow. These animals subsequently developed late-onset phenotypes including abnormal bone growth at the knee and OA.
Genetic mapping and sequencing revealed that MP-107 and TM44, contained mutations in Col1a2 and Col1a1 respectively, which correspond to the genes COL1A2 and COL1A1 in humans. The MP-107 mutation was a T to A transversion at position 4521226 of Chromosome 6 resulting in alternative splicing at exon 22 of Col1a2. The TM44 mutation was a C to T transition at position 94836670 of Chromosome 11 resulting in a premature stop codon in exon 31 of Col1a1.
Extensive phenotyping analysis revealed that the bone abnormalities observed in these lines are a result of an OI phenotype. Evidence of an EDS phenotype was also identified in the line MP-107, indicating that MP-107 is likely a model of Col-1 related overlap syndrome, a proposed EDS subtype exhibiting aspects of OI and EDS. Collagen I related changes to the joint tissues is likely the cause of the OA phenotypes. The project has the potential to enhance understanding of both the development of Col-1 related overlap syndrome and OA, and possible targets for therapy