“Jalan Yang Pasti”-fareast

Lagu ini ingin ditujukan buat keluarga arwah Nurin Jazlin Jasmin, masyarakat yang prihatin dan umat Islam yang sedar mahupun tidak. Moga ibu dan ayah mangsa dapat menerima ketentuan Allah ini dengan redha. Alfatihah….

Damai Yang Hilang

Tercalar pelangi dihiris gerimis
Senja pun merangkak menutup mentari
Terbias warnanya ke wajah

Lagu kedamaian tiada kedengaran
Bumi yang merekah disirami darah
Kemelut melanda tiada kesudahan
Kemusnahan bermaharajalela
Yang lemah menjadi mangsa

Anak-anak kecil mengongcangkan ibunya
Yang lemah longlai tak lagi bernyawa
Jeritan suara batinnya
Tak siapa mendengarnya

Tergaadaikan maruah oleh janji-janji
Terbayarkah dengan nyawa dan darah
Soalan yang tiada jawapan

Kemanusiaan telah lama hilang
Kini yang tinggal hanya ketakutan
Musnah kasih sayang dan persaudaraan
Tandus akhlak dan keimanan
Menyemai persengketaan

Susunan kronologi kes Nurin Jazlin Jazmin;

• 20 Ogos - Nurin hilang ketika berjalan seorang diri ke pasar malam dekat rumahnya di Wangsa Maju
• 24 Ogos - Media melaporkan kehilangan Nurin
• 26 Ogos - Ganjaran RM5,000 ditawarkan kepada sesiapa yang memberi maklumat
• 28 Ogos - Polis mengumumkan memanggil 30 individu memberi keterangan berhubung kehilangan Nurin dan kes diklasifikasikan sebagai culik
• 29 Ogos - Polis mendapat petunjuk mengatakan Nurin ditarik masuk ke dalam sebuah van pada hari kehilangannya
• 1 September - Keluarga Muhammad Nazrin Shamsul Ghazali
  atau Yin, 5, yang pernah hilang di pusat beli-belah Sogo, Kuala Lumpur
  hujung Mac lalu, menasihati keluarga Nurin menubuhkan jawatankuasa bagi
  menyusun strategi mencarinya
• 3 September - Polis menubuhkan pasukan khas mengesan Nurin
• 3 September - Ganjaran kepada sesiapa yang memberi maklumat meningkat kepada RM8,000
• 4 September - Ganjaran meningkat kepada RM13,000
• 5 September - Nurin didakwa dilihat berada di Seremban
• 5 September - Penemuan sebuah van putih di kawasan
  belukar di Jalan Klang Lama di sini, menggemparkan masyarakat yang
  menyangka ia mempunyai kaitan kehilangan Nurin
• 10 September - Seorang budak perempuan berusia sembilan tahun  merayau seorang diri di Taman Tasik Puteri, Rawang, disangkakan Nurin
• 11 September - Hari ulang tahun ke-8 Nurin
• 14 September - Ganjaran meningkat kepada RM26,000
• 17 September - Mayat seorang kanak-kanak ditemui dalam
  beg pakaian di Petaling Jaya Utama tetapi ibu bapa Nurin menafikan
  kanak-kanak itu anak mereka berdasarkan pengecaman fizikal
• 17 September - DNA ibu bapa Nurin diambil untuk diperiksa dan dipadankan dengan mayat itu
• 20 September - DNA ibu bapa Nurin disahkan sepadan dengan mayat kanak-kanak berkenaan

Internal Combustion Engine
The internal combustion engine is an engine in which the combustion of fuel and an oxidizer (typically air) occurs in a confined space called a combustion chamber. This exothermic reaction creates gases at high temperature and pressure, which are permitted to expand. The defining feature of an internal combustion engine is that useful work is performed by the expanding hot gases acting directly to cause movement of solid parts of the engine, by acting on pistons, rotors, or even by pressing on and moving the entire engine itself.
Many researchers have made a research on the efficiency of the Gasoline engine and also Diesel engine. Both engines are the most popular and being used for today vehicle. However the efficiency of each engine still needs to be improved. Professor Helmut Eischlseder from Graze University of Technology had done lot of research to improve the efficiency of both engines. From his point of view, the most important limitation are the compression ratio and also the air & fuel ratio. If both of these can be controlled well, the analysis to get better engine efficiency would be easier.
For the current gasoline vehicle on the road today, averagely have only about 23.3% of efficiency. It is not even half of the source of energy that we are using. Some of the energy had losses to the mechanical losses, gas exchange losses, wall heat losses, losses due to real combustion and losses due to incomplete combustion.
The designs of engine combustion system keep changing yearly. Many inventions have been made. The latest Gasoline and Diesel Engine design have been change from ‘wall & air guided combustion system ‘to ‘spray guided combustion system’. This design has been applied to latest BMW cars which will give more efficiency compare to the previous design. From the spray guided concept, the fuel injector is being located exactly near the spark plug. From the analysis, the combustion will happen faster and have higher brake mean effective pressure (bmep). Professor Heikal from Engineering Research centre, University Brighton, United Kingdom is running his research into ICE (internal combustion engine). His experiment shows the higher pressure of injection spray also affect the combustion. He has done his research in the Sir Harry RICARDO lab towards the injection pressure. Most of the combustion occurs greater when it is about or higher than 160Mpa. This tells us the injection pressure is proportional to the combustion characteristic.
When comparing the SI (gasoline) and DI (Diesel) engine concept, the Diesel engine has slightly higher efficiency. The technology today has put Diesel into better fuel consumption and efficiency which averagely about 29.3% compare to SI engine only 23.3%. However, the concept of the Diesel engine today is combining with turbo charger; this is to make sure the engine have a higher inlet pressure to be compressed. If we realize, most of the German’s made cars today have divert their technology into Diesel technology. Mercedes-Benz, BMW and also Volks Wagen have put an effort in producing the Diesel cars with less emission rate and low fuel consumption.
The challenge right now to the researchers is to reduce the emission and increase the efficiency. Researchers keep studying in balancing these both criteria. Less emission rate is referring to SI (gasoline) engine while good efficiency is referring to DI (Diesel) engine.
Today, Daimler Chrysler is experimenting exhaust gas treatment for passenger cars. The exhaust system is containing oxidation catalyst, particulate filter SCR catalyst. The function is to reduce poisonous gas such as NOx and Soot. This new technology would be applied into latest Diesel production cars from Daimler Chrysler soon. By this new outcome, the production cars of Diesel engine might get good response worldwide.

Mohamed Faiz b Mohamed Amin
Mechanical Engineering (Automotive)
Universiti Teknologi PETRONAS