Utility of a fretting device working under free displacement

Isolation of gravitational waves from displacement noise and utility of a time-delay device

Interferometers with kilometer-scale arms have been built for gravitational-wave detections on the ground; ones with much longer arms are being planned for space-based detection. One fundamental motivation for long baseline interferometry is from displacement noise. In general, the longer the arm length L, the larger the motion the gravitationalwave induces on the test masses, until L becomes c...

Isolation of gravitational waves from displacement noise and utility of a time-delay device

Crack Behavior of the Aluminum Alloy 2024 Under Fretting Conditions

The initial stage of fretting fatigue crack growth is significantly influenced by tangential force induced by fretting action along the contact surface where a mixed-mode crack growth is involved. Fretting crack behavior of aluminum alloy 2024 was studied, taking into account the problem of contact asperities. Finite element was used for the determination of the stress field near the contact su...

The Role of Three Dimensional Transvaginal Ultrasound in Detection of Intrauterine Device Displacement in Post Caesarean Section: A Case Report

Intrauterine Devices (IUDs) are used as an efficient and inexpensive method of contracep¬tion. Contraceptive efficacy depends on the intrauterine location of IUD and intrauterine displacement of the IUD leads to decreased contraceptive efficacy. Expulsion of IUD and its penetration into myometrium is one of the complications of IUD. In cases where IUDs are not detected by ultrasound method, in ...

the significance of conjunction as a cohesive device in teaching writing

the research questions were as follows: 1. is there any relationship between the students concious awareness of the form and implications of the conjuncations and their improvement in using appropriate conjunctions? 2. does students knowledge of the from and the implications of the conjunctions help them to produce more coherent writings. 3. does a comparison between english conjunctions and th...