Hypersingular integral equation for triple inclined cracks problems in half plane elasticity

Hypersingular integral equation associated with the modified complex potential is formulated to solve the three inclined cracks problems in an elastic half-plane with free traction boundary condition. The modified complex potential possesses two parts; the principal and the complementary parts. The principal part is derived from the original complex potential of the crack problem in an infinite plate. The complementary part eliminates the traction along boundary of half-plane caused by the principal part. The crack opening displacements (COD) is the unknown function and the traction is the right hand terms. The appropriate quadrature formula is adapted to solve the integral equation numerically and the stress intensity factor (SIF)is computed. The behaviour of SIF at crack tips is analysed. Numerical examples show that the SIF increases as the angle of inclined cracks and the distance of cracks from the boundary of half-plane increase. Our results are agreeable with the previous works

Dried chili seeds separator machine

Chili is a fruit of Capsicum plants [1]. The fruit is known as vegetable which is cultivated as food. Also, it is known as ‘Lada’ (in East Coast) or chili. It produces small flowers that turn into fruits in every branch of leaves. Chili is rich in vitamin C, vitamin A and minerals such as iron, calcium, phosphorus, sodium and potassium. Moreover, this vegetable is said to be worth in terms of relieving pain associated with obesity. Besides, it is good for blood circulation and to sore throat infections. Additionally, Cayenne pepper contains substance that prevents blood clotting, from a disease called thrombosis [2]

Hypersingular integral equation for triple circular arc cracks in an elastic half-plane

Triple circular arc cracks problems subjected to shear stress in half-plane elasticity is investigated. Modified complex potentials (MCP) with the free traction boundary condition are applied to formulate the hypersingular integral equation (HSIE) for the problems. The unknown crack opening displacements (COD) of the HSIE are solved numerically by using the appropriate quadrature formulas. Mode I and Mode II of nondimensional stress intensity factor (SIF) at all cracks tips are presented for the problems of three adjacent circular arc cracks, three circular arc cracks with dissimilar radius and three circular arc cracks in series in a half-plane. The results exhibit that as the crack opening angle increases and the distance of cracks closer to the boundary of half-plane, the nondimensional SIF increases. This indicates that the strength of material becomes weaker and the tendency of material to fail is higher

Kerja Sambilan Mempengaruhi Ketidakhadiran Pelajar Tingkatan 3

Gejala ponteng sekolah semakin hari semakin menular dalam kalangan pelajar di sekolah. Walaupun kita sudah mencapai era globalisasi, namun gejala ponteng ini amat sukar untuk diatasi. Oleh sebab yang demikian, satu kajian telah dijalankan terhadap masalah ponteng yang berlaku di sebuah Sekolah Menengah sekitar Kepong, Kuala Lumpur. Kajian ini bertujuan untuk mengenal pasti faktor kerja sambilan dan faktor lain punca pelajar ponteng sekolah. Selain itu, kajian ini juga dijalankan bertujuan untuk menghuraikan kesan-kesan gejala ponteng kepada pelajar dan sekolah serta menjelaskan langkah-langkah yang boleh diambil untuk mengurangkan gejala ponteng dan mengenalpasti tindakan yang diambil oleh pihak sekolah terhadap pelajar yang terlibat dalam gejala ponteng sekolah. Penyelidik menggunakan kaedah kajian temubual semi struktur bersama seorang responden yang merupakan guru disiplin di sekolah tersebut. Hasil kajian menunjukkan bahawa peringkat umur pelajar yang kerap ponteng adalah pelajar dari tingkatan 3. Dapatan kajian menunjukkan faktor utama pelajar ponteng ialah faktor kerja sambilan dan faktor sikap pelajar, faktor latar belakang, serta faktor rakan. Dapatan kajian juga menunjukkan bahawa peranan ibubapa, peranan sekolah serta peranan media massa merupakan langkah yang boleh diambil bagi mengatasi masalah tingkah laku ponteng sekolah. Part -Time Work Affects Absenteeism the Student Form 3 Abstract: Symptoms of skipping school are becoming more and more contagious among students at school. Although we have reached the era of globalization, but this symptom of skipping is very difficult to overcome. For this reason, a study was conducted on the problem of skipping that occurred in a Secondary School around Kepong, Kuala Lumpur. This study aims to identify the factors of part -time work and other factors that cause students to skip school. In addition, this study was also conducted to describe the effects of truancy symptoms to students and schools and explain the steps that can be taken to reduce truancy symptoms and identify actions taken by the school against students involved in truancy symptoms. The researcher used a semi -structured interview research method with a respondent who is a discipline teacher in the school. The results showed that the age group of students who often skipped were students from Form 3. The findings showed that the main factors of students skipping were part -time work factors and student attitude factors, background factors, as well as peer factors. The findings also show that the role of parents, the role of the school and the role of the mass media are steps that can be taken to overcome the problem of skipping school behavior. Keywords: Part-Time Work, Student Form 3, Absenteeism