Frontal Waves in the East of the Tsugaru Strait Revealed by the High-Frequency Radar Observation

Surface velocity observations of the eastern part of the Tsugaru Strait made by the high-frequency radar revealed frequent occurrence of frontal waves along the axis of the Tsugaru Warm Current in 2017–2019. The current axis (maximum of the zonal velocity in the meridional direction) disturbed in the north–south direction with period of ~ 13.7 days that is dominant timescale of tide modulation in the strait, in addition to that of ~ 27.3 days. The amplitude of the axis fluctuation increased in the downstream direction, from the eastern neck of the channel (~ 141.0°E) to the outlet of the strait adjacent to the Pacific Ocean (~ 141.5°E). The propagation speed of the disturbance was slower than that due to surface advection especially in the seasons when the stratification was developed, and agreed well with that estimated from the theory based on the two-layer baroclinic instability model except for winter. The north–south modulation of the axis at the outlet of the strait (~ 141.5°E) could cause short-term (from 20 days to 1 month) variations of an anticyclonic gyre of the Tsugaru Warm Current that is developed in the east of the outlet from summer to autumn reported by the previous studies.

Emotion Regulation Difficulties And Psychopathology In Bariatric Surgery Candidates

Evidence suggests high rates of psychiatric disorders in bariatric surgery candidates (e.g., Kalarchian et al., 2007; Mitchell et al., in press), although no rigorous studies have examined the prevalence in a Canadian sample. As such, the first purpose of this study was to assess the prevalence of Axis I disorders, and associations with quality of life, in a sample of consecutively referred bariatric surgery candidates at the Toronto Western Hospital Bariatric Surgery Program. In light of emerging evidence linking emotion regulation difficulties with diverse psychiatric symptoms, the second purpose of this study was to examine whether emotion regulation difficulties were common or specific determinants of mood, anxiety, and eating psychodiagnostic categories, as such information would help inform interventions. Three hundred and twenty-one bariatric surgery candidates (80.1% female; M age = 44.37 years) were assessed using a structured psychodiagnostic interview and completed questionnaires of health-related quality of life and emotion regulation difficulties. Results indicated that 54.5% of patients met DSM-IV-TR criteria for a lifetime psychiatric diagnosis and 18.4% met criteria for a current psychiatric disorder. Major depressive disorder was the most common lifetime psychiatric disorder and binge eating disorder was the most prevalent current psychiatric disorder. Compared to patients without a current Axis I disorder, participants diagnosed with a current Axis I disorder reported significantly worse functioning on most mental and physical health domains (p’s < .01). Overall, a series of regression analyses revealed that difficulties regulating emotions accounted for unique variance in current mood and anxiety disorder status (p’s < .001). Difficulties in emotion regulation were not significantly associated with current eating disorder status after Bonferroni correction. Taken together, these results confirm the high rates of psychiatric disorders in a Canadian sample of bariatric surgery candidates and provide evidence for associated functional health impairment. The data also add to the growing body of literature demonstrating emotion regulation difficulties across psychodiagnostic categories and are consistent with suggestions that psychosocial interventions for bariatric patients might benefit from directly targeting difficulties in emotion regulation. Further study of these associations is needed to replicate these findings and elucidate how difficulties in emotion regulation interact with psychopathology to affect patients’ post-operative outcomes.

Emotion Regulation Difficulties And Psychopathology In Bariatric Surgery Candidates

Evidence suggests high rates of psychiatric disorders in bariatric surgery candidates (e.g., Kalarchian et al., 2007; Mitchell et al., in press), although no rigorous studies have examined the prevalence in a Canadian sample. As such, the first purpose of this study was to assess the prevalence of Axis I disorders, and associations with quality of life, in a sample of consecutively referred bariatric surgery candidates at the Toronto Western Hospital Bariatric Surgery Program. In light of emerging evidence linking emotion regulation difficulties with diverse psychiatric symptoms, the second purpose of this study was to examine whether emotion regulation difficulties were common or specific determinants of mood, anxiety, and eating psychodiagnostic categories, as such information would help inform interventions. Three hundred and twenty-one bariatric surgery candidates (80.1% female; M age = 44.37 years) were assessed using a structured psychodiagnostic interview and completed questionnaires of health-related quality of life and emotion regulation difficulties. Results indicated that 54.5% of patients met DSM-IV-TR criteria for a lifetime psychiatric diagnosis and 18.4% met criteria for a current psychiatric disorder. Major depressive disorder was the most common lifetime psychiatric disorder and binge eating disorder was the most prevalent current psychiatric disorder. Compared to patients without a current Axis I disorder, participants diagnosed with a current Axis I disorder reported significantly worse functioning on most mental and physical health domains (p’s < .01). Overall, a series of regression analyses revealed that difficulties regulating emotions accounted for unique variance in current mood and anxiety disorder status (p’s < .001). Difficulties in emotion regulation were not significantly associated with current eating disorder status after Bonferroni correction. Taken together, these results confirm the high rates of psychiatric disorders in a Canadian sample of bariatric surgery candidates and provide evidence for associated functional health impairment. The data also add to the growing body of literature demonstrating emotion regulation difficulties across psychodiagnostic categories and are consistent with suggestions that psychosocial interventions for bariatric patients might benefit from directly targeting difficulties in emotion regulation. Further study of these associations is needed to replicate these findings and elucidate how difficulties in emotion regulation interact with psychopathology to affect patients’ post-operative outcomes.

Intelligente Überwachung von Werkzeugverschleiß/Intelligent monitoring of tool wear based on machine internal data

Numerische Steuerungen für Werkzeugmaschinen erfassen eine erhebliche Menge an Sensordaten für die Achsregelung. Diese liefern nicht nur Informationen über die aktuellen Achspositionen oder die Ströme, sondern können mithilfe von Modellen auch für das Monitoring von anderen Prozessgrößen verwendet werden. In diesem Beitrag wird ein Machine-Learning-Verfahren zur Überwachung von Werkzeugverschleiß untersucht, welches allein auf maschinen-internen Daten basiert. &nbsp; Numerical controls for machine tools acquire a considerable amount of sensor data for axis control. This information, such as the current axis position or the motor currents, can be used for monitoring other process variables with the aid of models. This article investigates a machine learning method for monitoring tool wear in machine tools, based on machine-internal data only.

Study on Transformer JED Cap Actuation Systems in the Field of Very Strong Electromagnetic Disturbances

This work presents the results of research on the influence of strong external electromagnetic fields on the operation of JED spark caps activated by transformer systems. The tests were carried out in order to determine the conditions of safe use of JED caps installed in control systems of generators producing electric current pulses using the principle of an explosive magnetic field cumulation [1]. For this purpose, the measurements of the voltages induced in the transformer JED spark cap actuation system were performed using sinusoidal external current with an amplitude of 10 kA for a period of 15 microseconds. This current flowed at a distance from d = 10 mm to d = 40 mm from the axis of the ferrite cores of the applied transformers: a closed core with an outer diameter of 20 mm, an inner diameter of 10 mm and a height of 10 mm and an open core with a diameter of 6 mm and a length of 25 mm. The transformers used in Air Force Institute of Technology (AFIT) were placed alternately parallel and perpendicular to the axis of the current conductor. In the case of a transformer with a cylindrical open core perpendicular to the current axis, the induced voltages significantly exceeded the values at which the caps were activated (about 2 kV) and became lower than these values at d of about 40 mm. Toroidal closed cores provided induced voltages of up to 200 V (10 times lower) for all configurations tested. The measurements were performed using a system and methods developed at AFIT.

Analisis Pengaruh Arus Medan (id current axis) Terhadap Kecepatan Motor Induksi 3 Fasa Pada Pengaturan Menggunakan Metode Field Oriented Control (FOC)

Penggunaan motor induksi 3 fasa sebagai pengerak listrik sangat popular dikarenakan harga yang lebih murah, kontruksi kokoh dan bebas perawatan, akan tetapi memiliki karakteristik tidak linear sehingga susah dalam pengaturanya. Beberapa metode yang dikembangkan diharapkan mampu mendapatkan pengaturan yang efisien. Field Oriented Control (FOC) salah satu metode yang dikembangkan dalam pengaturan motor induksi, dengan menerapkan pengaturan koordinat dq arus medan(id) dan torsi(iq) dapat diatur secara terpisah. Penelitian ini bertujuan untuk mengetahui pengaruh arus medan (ids*) terhadap kinerja motor dengan pengaturan berbasis FOC. Hasil simulasi dapat diketahui bahwa semakin besar (ids*) berpengaruh pada putaran rotor yang akan turun, selain itu juga berpengaruh pada kinerja motor untuk mencapai kondisi steady dan overshoot dari respon motor tersebut. Untuk ids*=0.8A memerlukan waktu 1.06s untuk mencapai kondisi steady dengan overshoot mencapai 977.5 Rpm pada kecepatan konstan 350Rpm, ids*=1.6A memerlukan waktu 2.24s dengan overshoot mencapai 708 Rpm pada kecepatan konstan 350Rpm, ids*=4.1A memerlukan waktu 2.282s dengan overshoot mencapai 512.5 Rpm pada kecepatan konstan 330Rpm. Kata kunci :Motor Induksi 3 Fasa, FOC, Arus Medan (Id), Kecepatan Motor, Performa Motor.

Functioning mediates help-seeking for mental problems in the general population

Aims:Absent or delayed help-seeking is considered to aggravate the immense personal and societal burden caused by mental disorders. Therefore, we cross-sectionally examined rates and clinical and sociodemographic moderators of early help-seeking for current clinician-assessed non-psychotic mental problems/disorders in the community.Methods:Altogether, 2683 individuals of the Swiss Canton Bern (16–40 years old, response rate 63.4%) were interviewed by telephone for current axis-I problems/disorders using the Mini-International Neuropsychiatric Interview, for psychosocial functioning using the Social and Occupational Functioning Assessment Scale, and for help-seeking for mental problems.Results:In total, 1122 (41.8%) reported mental problems. Of these, 769 (68.5%) affirmed any one screening question and 353 (31.5%) fulfilled criteria for any current axis-I disorder, and 396 (35.3%) reported any lifetime help-seeking (28.3% sought help in the past and 7.0% were in current treatment). In path analyses, current help-seeking was associated mainly by type and number of mental problems/disorders mediated by functional impairment, in addition to older age, no current partner, and past treatment.Conclusion:Our cross-sectional data indicate a gap in help-seeking for mental problems/disorders. The relationship between number of mental problems/disorders and help-seeking mediated by functional impairment confirm that individuals commonly do not seek help until problems are severe enough to cause problems in occupational and psychosocial functioning, driving the already immense costs of mental disorders. Thus, campaigns promoting early help-seeking, including early diagnostic clarification of and support for subthreshold mental problems in terms of an indicated prevention, should focus on psychosocial functioning, aside from signs of mental illness.

The Impact of Age on the Prevalence and Clinical Relevance of Attenuated Psychotic Symptoms in Patients of an Early Detection Service

IntroductionCompared to 16–40-year-olds, 8–15-year-olds of the community reported higher frequencies of perceptual and lesser clinical significance of non-perceptual attenuated psychotic symptoms (APS).Objectives/aimsWe examined if a similar age effect is present in a clinical never-psychotic sample (n = 133) referred to a specialized service for clinical suspicion of developing psychosis.MethodsAPS and brief intermittent psychotic symptoms (BIPS) were assessed using items P1-3 and P5 (non-perceptual) and P4 (perceptual) of the structured interview for psychosis-risk syndromes, current axis-I disorders with the mini-international neuropsychiatric interview and psychosocial functioning with the Social and Occupational Functioning Assessment Scale (score < 71 indicative of at least some difficulty in social, occupational, or school functioning).ResultsOverall, 64% reported APS (61%) or BIPS (7%); any perceptual APS/BIPS was reported by 43% and any non-perceptual APS/BIPS by 44%. In correspondence to the results of the community study, perceptual but not non-perceptual APS/BIPS were significantly more frequent in younger age groups below the age of 16 (8–12 yrs: OR = 4.7 (1.1–19.5); 13–15 yrs: OR = 2.7 (0.9–7.7); 20–24-year-olds as reference group). An age effect of APS/BIPS on presence of any current axis-I disorder (59%) or functional difficulties (67%) could not be detected. Yet, when APS onset requirements were met, the likelihood of a psychiatric diagnosis increased significantly with advancing age.ConclusionOverall, the replicated age effect on perceptual APS in this clinical sample highlights the need to examine ways to distinguish clinically relevant perceptual APS from perceptual aberrations likely remitting over the course of adolescence.Disclosure of interestThe authors have not supplied their declaration of competing interest.