Design and Analysis of AC14 Ship Anchor

A Ship’s anchor makes a ship to be at a fixed location against currents and winds when ship is in rest position. Purpose of anchor is to restrict the drifting of ship, which is occurs due to the currents. Even though there are many different types of anchor, present paper intended to do design and analysis on stockless anchor AC14 type. Project aims to determine the equivalent von-mises stress and maximum deformation in anchor when subjected to proof test. Proof test load is decided based on the mass of the anchor. (Reference is taken for the relationship of proof test load and mass of the anchor. Solid modeling of Stockless ship anchor model is carried out on NX 11.0 and modal analysis of ship anchor is carried out using ANSYS 16.0

Turn Continuations and Gesture: “And Then”-Prefacing in Multi-Party Conversations

This article offers an analysis of turn-expanding practices with the connective å sen ‘and then’ in Swedish multi-party conversations in which the participants discuss and assess works of visual art. The connective is recurrently used to introduce a turn continuation, i.e. a stretch of talk that is produced after a possibly completed turn-constructional unit (TCU). We identify three types of continuations: same-speaker continuations, occurring post gap or post-other talk, and other-continuations by the next speaker. Some of the “and then” continuations are clausal, syntactically free-standing, while non-clausal continuations have more in common with TCU increments. “And then” continuations specify, restrict or redirect the unfolding contribution while at the same time orienting to a collective interactional project. In same-speaker continuations, the speaker can introduce a new aspect of the established theme or offer an account. Other-continuations can be used to achieve a shift in footing to introduce a somewhat non-aligning contribution. Both grammar and embodied resources (especially hand gestures) are activated in the management of the completion of a prior turn unit, the initiation of a turn continuation and the recompletion of the speaker’s turn. The typical multimodal trajectory is: syntactic completion of a first unit + retracted gesture; link to prior talk and upcoming talk with “and then” followed by the core of the continuation + a redeployed gesture; and finally, syntactic completion of the continuing unit + retracted gesture to a rest position.

Effect of Lingual Frenotomy on Tongue and Lip Rest Position: A Nonrandomized Clinical Trial

Introduction The tongue plays an important role in the development of craniofacial structures. At rest, the light and constant pressure of the tongue against the hard palate, counterbalanced by the pressure provided by proper lip sealing, serves as a guide for maxillary growth. Ankyloglossia makes tongue coupling against the hard palate difficult, impacting maxillary development, which may lead to breathing disorders. Objective To verify the effect of lingual frenotomy on the resting position of the tongue and lips in infants with ankyloglossia. Methods The sample consisted of 334 infants aged between 1 and 60 days old diagnosed with ankyloglossia. The groups were divided in: a) experimental group (EG), which consisted of infants whose mothers agreed with lingual frenotomy; b) control group (CG), which consisted of infants whose mothers either refused lingual frenotomy or were waiting for surgery. Both the position of the lips and of the tongue at rest were assessed while the infants were sleeping during the quiet sleep phase. For mothers who refused their infants to undergo the surgical procedure, a follow-up of the infants was proposed to verify possible interference of the frenulum with the resting position of the tongue and lips. Infants whose mothers agreed with surgery were referred for lingual frenotomy. Results Regarding the position of the tongue and lips at rest at the initial and final assessments, the statistical analysis demonstrated significant differences between both groups. Conclusion Lingual frenotomy enabled infants diagnosed with ankyloglossia to maintain both tongue coupling against the hard palate and closed lips at rest.

Analysis of Tongue Function from the Orthodontist’s Point of View: Not Only a Matter of Deglutition

Many studies report that maxillofacial growth is influenced by genetic and environmental elements and that incorrect breathing, chewing, sucking, and swallowing are promoting factors of malocclusion. This study aims to evaluate the function and the influence of the tongue positions in patients with Angle class III malocclusion, maxillary hypoplasia, and posterior crossbite. One hundred patients, aged between 6 and 12 years old, were enrolled for the study. In the first group, patients with a diagnosis of class III malocclusion, affected by maxillary hypoplasia, skeletal class III, and posterior dental crossbite were recruited. In the control group, not treated patients with no malocclusion, skeletal class I, and without posterior dental crossbite were selected. Regarding atypical deglutition, no statistical differences were reported between the two groups, and 14% of patients reported ankyloglossia. Statistical differences were found in tongue rest position and during the execution of “hold and pull” and “chuck” exercises. Results obtained in this observational study showed that the clinician (orthodontist or general dentist) should analyze the presence/absence of atypical swallowing, the anatomical and functional aspects, and the tongue behavior in the rest position.

The evolution of Jupiter polar cyclones

<p>JIRAM (the Jovian InfraRed Auroral Mapper) is an infrared camera and<br>spectrometer on board Juno. JIRAM operates in the 2-5 μm spectral<br>range and is built to observe both Jupiter's infrared aurora and its<br>atmosphere. Since 2016, JIRAM has performed several observations of<br>the polar regions of the planet, thanks to the unique orbital design<br>of the Juno mission.  In the north polar region, Juno discovered, in<br>2017, the presence of an eight-cyclone structure around a single polar<br>cyclone; to the south, a polar cyclone is surrounded by five<br>circumpolar cyclones. The stability of these structures has been<br>monitored for almost 4 years. Recent observations, made at the end of<br>2019, showed that the configuration of the South Pole has temporarily<br>changed: the structure moved in a hexagon for a few months, before<br>returning to its original pentagonal shape. To the north, there are<br>significant hints that the octagonal shape may have been lost for a<br>similar period of time.<br>We find that all cyclones show a very slow, westward drift as a rigid<br>ensemble, and, in addition, they oscillate around their rest position<br>with similar timescales. These oscillations seem to propagate from<br>cyclone to cyclone. The implications of these transient deviations<br>from the symmetrical forms, which appear to be an apparent condition<br>of equilibrium, are discussed.</p>

Symmetrical dental occlusion blocking – changes of body sway and weight distribution in healthy subjects across 4 age decades

Objectives Symmetrical dental occlusion blocking is used in dentistry as a quick diagnostic tool to test for potential influences of the craniomandibular system on body sway and weight distribution. This study presents the changes of body sway and pressure distribution in healthy subjects, free of a temporomandibular dysfunction (TMD). Immediate effects between occlusal blocking and rest position on body sway and body weight distribution in general, as well as for both genders and for four age decades will be evaluated. Materials and methods 725 (396f/329 m) subjects (neither subjective signs of TMD nor acute/chronic complaints in the musculoskeletal system) volunteered (21 to 60 years) while both genders were divided into four age groups according to decades. A pressure measuring platform was used. Body sway and weight distribution were recorded in two dental occlusion conditions (a) in rest position and (b) symmetrical blocking (bicuspid region) by cotton rolls. Results Both, the frontal sway and the sagittal sway reduced by 0.67 mm (t(724) = − 3.9 (p < 0.001)) and by 0.33 mm (t(724) = − 3.4 (p < 0.001)). The relative pressure under the left forefoot increased by 0.33% (t(724) = 2.88 (p < 0.001)) and the relative pressure overall under the forefoot increased by 0.67% (t(724) = − 3.4 (p < 0.001)). Gender-specific, age-specific and BMI-specific reactions could not be identified. Conclusions Subjects, free of any TMD and with no complaints of the musculoskeletal system, show small changes of the body sway and weight distribution when biting symmetrically on a cotton roll. These changes are independent of age, gender or body mass index (BMI). Due to the relative large sample size, the presented results can also be seen as norm values when body sway is used as an additional assessment of a TMD.