Acoustic Emission (AE) evaluation is one of the fast growing non-destructive techniques, owing to its ability to reveal in advance of any impending failure of a building structure. This capability makes the so called passive ultrasonic technique a very good tool in structural health monitoring; especially for composite structures. In metallic structures, AE technique is currently well established and able to provide accurate and consistent result. However, in composites, the challenge for a reliable AE results is huge due to the orthotropic behaviour of the materials. The present study investigates the energy attenuation of AE signals in thin composite plate and utilized the attenuation pattern into non-velocity based source location detection. Standard Hsu-Nielsen source location testing was applied on a glass fibre epoxy resin laminate and a single channel AE system was used to acquire AE signals with the support from AEWin software for signal analysis. A linear source location algorithm utilizing AE signals energy attenuation patterns was developed and tested for the composite specimen. The results revealed that the source location algorithm provides reasonably accurate results of source location for glass fibre epoxy resin laminate.

Translate to bahasa oghe kito:

Penilaye pancare akustik ni, so daripado jenih jenih kekdoh dok musnoh (NDT) hok berkembe derah lo nih. Mugo bare ni buleh royak awa-awa, bilo struktur bina e tu ado pat hok rosok (walau sebesar kume pong) dale dio. Sebak tu lah bare nih jadi bendo hok sangak molek, kalu nok cek setagho mano keadae so so struktor bina e. Dale bare besi, kekdoh ni meme kemah molek doh. Dio buleh wi rizak hok kemah keming ketepate dio. Tapi gak, dale behe komposit, bendo ni jaddi beghak, payoh, mugo behe ni jenih dok sekato atao pung oghe putih ghoyak, behe jenih peranga orthotropic. Kajie hok ambo buak ni, nok tra siasak, pah nok kelih setagho mano tahap pengurange tenago dari signa pancare akustik nih, bilo signa nih lalu atah pape komposit nipih. Peten atao cagho parah tenago tu koho kughe bilo lalu atah behe komposit ni, bulih kito guno nok caghi punco signa akustik tu tubik. Ambo guno kekdoh ujiye Hsu-Nielsen untuk stat punco signa atah pape komposit, pahtu gak mesin pancare akustik (AE) denga sebutir sensor, ambo guno nok ditek signar AE tuh. Mudoh jah. Pahtu, ambo guno kekdoh ‘cari punco signa’ hok ambo buak sendiri guno programming komputor. Rizak dio molek, boleh kato tepak jugok la kalu nok cari punco signa: atau denga kato laing, kekdoh ni buleh buak caghi punco crack dale behe komposit.

Kita yg menentukan bukannya ‘Parti KITA’

Semakin lara kita didera bara -
kita laungkan juga pesan merdeka:
Demokrasi sebenderang mentari
sehasrat hajat semurni harga diri.

Lama resah kita – demokrasi luka;
lama duka kita – demokrasi lara.
Demokrasi yang angkuh, kita cemuhi;
suara bebas yang utuh, kita idami!

Dua abad lalu Sam Adams berseru:
(di Boston dijirus teh ke laut biru):
Tak diperlu gempita sorak yang gebu,
diperlu hanya unggun api yang syahdu.

Kini menyalalah unggun sakti itu;
kini merebaklah nyala unggun itu.

24—25, 6.11.

A. SAMAD SAID

Jumaat ni maka genaplah Mateen setahun nenas umurnya. Ini bermakna bertambahlah umurnya si mami dan abi mateen, serta hampir setahun lebih abu ya mateen bersabung kudrat dan keringat di bumi Lembah Klang….

Abi mateen selalu mengatakan mateen ini ceritra dan kisahnya amat istimewa…mami mateen pun tak tahu kenapa abi mateen berkata begitu…ketahuilah, hanya abi mateen dan Allah sahaja yang tahu….

Genapnya mateen setahun nenas umurnya bermakna makin perlulah persiapan ke arah mana hala tuju anak ini….. Akal, akhlak, pemikiran, cara berfikir dan pengetahuan alam sini serta sana perlu disediakan sekemas pertumbuhan gigi mateen. InsyaAllah, semuanya dipermudahkan Ilahi.

Salam ulang tahun pertama kali buat anakanda Wan Abdulmateen dari abuya, abi mateen:)…..

additional info….

Prophet: The perfect role model

The Holy Prophet Muhammad (peace be upon him) was born on Rabiul Awwal 12 of the Hijrah calendar.

His birth, on a Monday, came 570 years after that of the Prophet Jesus (peace be upon him). The Prophet was born in the city of Makkah to Abdullah, the son of Abdul Muttalib, the venerable sheikh of the Quraish, the ruling clan of Makkah.

The Prophet Muhammad, called Al-Ameen (The Trustworthy) even by his enemies, was the last of the prophets sent by Allah. There is no other prophet on whose life so much light has been shed. Born after the age of myth, living in the full glare of history, his sayings and actions were documented as no other prophet’s were. Recorded in minute detail, their authenticity has been questioned by no fair scholar.
The Prophet’s life is a shining example for all to follow. He was the kindest of persons — a sense of compassion that was directed at Muslims and non-Muslims alike. His care for those around him and even for those who caused him harm provides shining examples of true nobility. His love for orphans was deep, and the kindness that he exhibited to the needy, the humble and the poor knew no bounds.
It is extremely difficult for the Muslims of today to imagine and much less to endure the hardships that the Prophet and his companions underwent. In the ninth year of his mission, the Prophet — having been persecuted and terrorized by his people in Makkah — headed for Taif, home to the Banu Thaqif tribe. There he went to preach his message but was treated rudely by the tribal elders, who told him to clear off and even sent street urchins after him to beat him and pelt him with stones. He bled profusely causing his entire body to be covered with blood and his sandals to become clogged to his feet.

He headed away from the town and took respite near a rock and made a heart-rending invocation to God Almighty beseeching mercy for the people who had persecuted him a few moments earlier.

It is said that the heavens were moved by the Prophet’s prayer and the Archangel Gabriel came and said that God Almighty is aware of what has passed and that he has deputed an angel in charge of the mountains. The angel in charge of the mountains then came forward and offered to bring the mountains overlooking Taif to collide with each other to destroy the inhabitants. However, being a mountain of mercy himself and the mercy of the worlds, the Prophet refused. Note the conduct of our noble Prophet. Irritated by a little trouble or abuse from someone, we spend years scheming and devising ways to take revenge. How far removed are the Muslims of today from the Prophet who they consider their exemplar.

In spite of suffering so much at the hands of the Taif mob, the Prophet did not curse or seek revenge, even when the opportunity arose. Instead, he pleaded for mercy.

When there was a stop in a Makkan woman who would repeatedly throw garbage on him as he walked in the streets, the Prophet — being an icon of compassion — asked people about her and even humbly visited her after hearing she had fallen ill.
Over 14 centuries have gone by since he, the Last of the Messengers, left us, but his message — one that was earmarked by mercy for the entire creation — lives on. His examples live on to lead us from darkness to light. His life was one of mercy, compassion, care, consideration, kindness and tolerance for all. His sayings, known as Hadiths, bear testimony to this. One particular theme found in his sayings relate to the rights of women. It is without a doubt that Islam afforded women an honorable and respected position. However, it is sad to see people, many Muslims included, ignorant of this.

On one occasion, he said, “Fear Allah in respect of women.” He also said, “The best of you are they who behave best to their wives.” In another he said, “A Muslim must not hate his wife, and if he be displeased with one bad quality in her, let him be pleased with one that is good.” In one more Hadith, he said, “The more civil and kind a Muslim is to his wife, the more perfect in faith he is.”
It is no wonder then that the Prophet Muhammad’s employer was none other than a woman, Sayyidatuna Khadijah (may Allah be pleased with her). So impressed was she by his kindness, compassion, manners and trustworthiness that they married, a model marriage that is often cited by scholars as a perfect example for Muslims to follow. Unlike those jihadists who preach hatred and dislike for non-Muslims and even to those Muslims who don’t subscribe to their views, the Prophet’s own behavior stands contrary to the way they call to. Let them take heed to the fact that it was the Prophet who accepted Safiyyah and Mariya in his home as his wives — one being of Jewish and the second being of Christian heritage.

In an attitude that was revolutionary at that time, the Prophet taught his companions to remain in their mothers’ service, saying that Paradise lies beneath their feet.

Today, as we stumble through a confused and turbulent world, as we grope in darkness and as we suffer from uncertainty and depression, we must look for — and grasp at — the teachings of the Holy Prophet so that they will act as a cure for many of the social ills that have befallen our world.

The world faces a host of seemingly insoluble problems. In the West, people speak of depression and decay in society. In the East, industrial and technological progress has created a vacuum in society. Many people are floundering in darkness. They cling to values that have nothing to do with life. They join cults. For role models they look to unworthy individuals who are moral vacuums.
For us the perfect role model is the Last Messenger of God. His life, his dealings with young and old and both friend and foe are an inspiration to all of us.

Let us teach ourselves and our children about the life of the Holy Prophet and use it in our daily lives so that we may improve our conduct and become better human beings. Let us be more tolerant, more forgiving and show compassion to all our brothers and sisters in humanity, irrespective of their race or religion.

Let us pray for a better world. Ameen