A highly sensitive photoacoustic (PA) microcavity gas sensor for leak detection is proposed.The miniature and low-cost gas sensor mainly consisted of a micro-electro-mechanical system (MEMS) microphone and a stainless-steel capillary with two small holes opened on the side wall.Different from traditional PA sensors, the designed low-power sensor ha
Abstrak Efek dari krisis ekonomi global adalah menurunnya aktivitas ekspor dan impor yang mempengaruhi terhadap menurunnya permintaan pembangunan kapal baru.Hal ini mengakibatkan galangan kapal melakukan efisiensi di seluruh aspek untuk tetap bertahan salah satunya dengan mengurangi biaya produksi sebuah kapal.Banyak studi terkait pengurangan berat
This paper is devoted to the minimization of the stress concentration factor in infinite plates with circular hole made of functionally graded materials and subjected to a far-field uniform uniaxial tension.Despite the vast literature on the versatility of these materials, the novelty of the results is that the material distribution is not limited
Quantum optics based on highly excited atoms, also known as Rydberg atoms, has cemented itself as a powerful platform for the manipulation of light at the few-photon level.The Rydberg blockade, Machines resulting from the strong interaction between individual Rydberg atoms, can turn a large ensemble of atoms into a system which collectively resembl