As an important part of track inspection, the detection rail fasteners is great significance to improve safety train operation. Additionally, fastener belongs small-target detection. The YOLOv4 algorithm relatively fast in and has some advantages Therefore, used for status However, still suffers from following two problems First, features extracted by original feature extraction network are rou...

Slide fasteners are one of the textile end-uses that have permeated daily life. The objective is to elucidate ways improve quality and value slide fasteners. In this report, from viewpoint tactile perception on tensile load transmitted user’s fingers through a slider in sliding fastener, sensory affective impressions (hereinafter referred as slide-feeling) quantitative evaluation indexes slide-...

In this work, we aim to evaluate different Distributed Lock Management service designs with Remote Direct Memory Access (RDMA). In specific, we implement and evaluate the centralized and the RDMAenabled lock manager designs for fast network settings. Experimental results confirms a couple of hypotheses. First, in the traditional centralized lock manager design, CPU is the bottleneck and bypassi...

Traveling by high-speed rail and railway transportation have become an important part of people’s life social production. Track is the basic equipment transportation, its performance directly affects service lifetime lines vehicles. The anomaly detection fasteners in a priority, while traditional manual method extremely inefficient dangerous to workers. Therefore, this paper introduces efficien...

Thin solid shell contrast agents bubbles are expected to undergo different volume oscillating behaviors when the acoustic power is increased: small oscillations when the shell remains spherical, and large oscillations when the shell buckles. Contrary to bubbles covered with thin lipidic monolayers that buckle as soon as compressed: the solid shell bubbles resist compression, making the buckling...

Data race conditions in multi-tasking software applications are prevented by serializing access to shared memory resources, ensuring data consistency and deterministic behavior. Traditionally tasks acquire and release locks to synchronize operations on shared memory. Unfortunately, lock management can add significant processing overhead especially for multicore deployments where tasks on differ...

Cold forging is often applied in the fastener industry. Wires in coil form are used as semi-finished products for the production of billets. This process usually requires preliminarily drawing wire coil in order to reduce the diameter of products. The wire usually has to be annealed to improve its cold formability. The quality of spheroidizing annealed wire affects the forming quality of screws...

We consider non-blocking synchronization for dynamic embedded real-time systems such as those that are subject to resource overloads and arbitrary activity arrivals. The multi-writer/multi-reader problem inherently occurs in such systems, when their activities must concurrently and mutually exclusive share data objects. We consider lock-free synchronization for this problem under the unimodal a...