BACKGROUND Crystal methamphetamine smoking is associated with many negative health consequences, including the potential for transmission of hepatitis. We examined whether or not a kit for crystal methamphetamine smoking might have some potential to reduce the negative health effects of crystal methamphetamine smoking. METHODS Five focus groups were conducted with crystal methamphetamine smok...

Tests were conducted to determine whether the lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae), selects rough rice (Oryza sativa L. (Poales: Poaceae)) kernels with cracked hulls for reproduction when these kernels are mixed with intact kernels. Differing amounts of kernels with cracked hulls (0, 5, 10, and 20%) of the varieties Francis and Wells were mixed with intact ke...

cracked and un-cracked brazilian disc specimens subjected to diametral compression were used for conducting fracture toughness and tensile strength experiments on a polymer concrete (pc) material. the value of mode i fracture toughness (kic) was determined from the center- cracked brazilian disc and the indirect tensile strength (σt) was obtained from the un-cracked brazilian disc specimen. the...

BACKGROUND The purpose of this study was to analyze the characteristics of cracked teeth and to evaluate pulp status according to periodontal probing depth (PPD). METHODS A total of 182 cracked teeth were included. The location and type of the cracked teeth, age and gender of the patients, restoration type, pulp status, PPD, and radiographic findings were analyzed. RESULTS Mandibular second...

This paper proposes a new method using Wide Line Detector based statistical shape Feature (WLDF) to identify whether or not a tongue is cracked; a cracked tongue is one of the most frequently used visible features for diagnosis in traditional Chinese Medicine (TCM). We first detected a wide line in the tongue image, and then extracted WLDF, such as the maximum length of each detected region, an...

A simplified methodology is proposed for calculating the plastic collapse (limit) bending moment load of a pipe with circumferential flaw an emphasis on its application use in assessment cracked offshore wind turbine monopile using failure diagrams. The based theory net section (NSC) but differs from existing approaches that it does not need idealisation and categorisation crack before assessme...

Abstract Ductile fracture is characterized by a large amount of deformation. Two mechanisms may lead to ductile failure: local tearing appear in front stress concentration region like crack or geometry changes weak part the structure can induce global collapse structure. For cracks such as those considered Leak Before Break studies, analyses and net-section criteria have been used. The present ...

Flaws in material, appearing because of imperfections, manufacturing faults or severe service conditions, can easily threaten the structural integrity of engineering components. This is particularly dangerous when concerning equipment whose purpose is to protect larger systems, e.g. pressure safety valves (PSV) that protect pressure vessels and equipment of overpressure. Catastrophic consequenc...

Abstract In typical leak-before-break (LBB) analyses in the nuclear industry, uncracked piping normal operating forces and moments are applied a cracked-pipe analytical procedure to determine leakage, combined under condition safe shutdown earthquake seismic loading used fracture analysis predict margins on "failure". The International Piping Integrity Research Program (IPIRG) performed 1990 19...