Abstract Deep learning techniques for automatically detecting teeth in dental X-rays have gained popularity, providing valuable assistance to healthcare professionals. However, detection X-ray images is often hindered by alterations tooth appearance caused prostheses. To address this challenge, our paper proposes a novel method and numbering panoramic X-rays, leveraging two separate CNN-based object detectors, namely YOLOv7, prostheses, alongside an optimization algorithm refine the...

Bronchopulmonary dysplasia (BPD) in preterm infants is a major concern neonatal intensive care, necessitating early and accurate detection for improved outcomes. Despite the use of clinical information previous studies to assess BPD severity, there gap prediction through imaging techniques. This paper proposed novel method using convolutional neural networks (CNNs) from chest X-rays. We employed two strategies: first, analyzing X-ray images taken on specific days post-birth evaluate day-wise...

Abstract Two freshwater armoured dinoflagellates, Peridiniopsis cf. kevei from Japan and penardii Italy, were examined by means of light, scanning transmission electron microscopy. Morphological studies indicated that the two dinoflagellates had similar type cellular structure possessed an endosymbiotic diatom. The diatom endosymbiont, which contained a eukaryotic nucleus, chloroplasts mitochondria, was separated dinoflagellate cytoplasm single unit membrane. triple-membrane-bound eyespot,...

This paper proposes a cuff-less systolic blood pressure (SBP) estimation method using partial least-squares (PLS) regression. Level-crossing features (LCFs) were used in this method, which extracted from the contour lines arbitrarily drawn on second-derivative photoplethysmography waveform. Unlike conventional height ratio (HRFs), are basis of peaks waveform, LCFs can be reliably even if there missing However, adjacent show similar trends; thus, is strong correlation between features, leads...

To date, the applications of photoplethysmograms in estimation cuff-less blood pressure, arteriosclerosis, and so on have been studied. Photoplethysmogram waveform features often used to estimate target volumes. For these estimations, it is necessary acquire photoplethysmogram waveforms changes their derivative details, for which measured at comparatively high sampling rates used. The performance smartphone cameras wearable sensors has improved; with regard mobile health technology, lower...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffect of sulfur dioxide removal by limestone on nitrogen oxide (NOx) and nitrous emissions from a circulating fluidized bed combustorTadaaki Shimizu, Yutaka Tachiyama, Daisuke Fujita, Kenichi Kumazawa, Osamu Wakayama, Kazuya Ishizu, Sadamu Kobayashi, Shinobu Shikada, Makoto InagakiCite this: Energy Fuels 1992, 6, 753–757Publication Date (Print):November 1, 1992Publication History Published online1 May 2002Published inissue 1 November...

Abstract Purpose Osteochondritis dissecans (OCD) of the humeral capitellum is a common cause elbow disorders, particularly among young throwing athletes. Conservative treatment preferred for managing OCD, and early intervention significantly influences possibility complete disease resolution. The purpose this study to develop deep learning-based classification model in ultrasound images computer-aided diagnosis. Methods This paper proposes OCD method images. proposed first detects detection...

The surface precipitation process of epitaxially grown graphite (0001) layers on the C-doped Ni(111) has been investigated by in situ x-ray photoemission spectroscopy measurements. Peak intensity measurements at various temperatures clarified change carbon chemical state from segregated through monolayer to multilayer graphite. simple thickness estimation transition region indicates that once estimated is calibrated, controlling thin film range a precise adjustment temperature may be...

Physical fitness of 900 volunteers over 60 years age were analyzed using a 6-item battery test to obtain fundamental data on the status aged Japanese. The consisted stepping, vertical jump, grip strength, breath holding, body flexion and one-leg balancing, could be performed safely with relatively mild physical stress in elderly after simple screening by measurement resting blood pressure oral check mobility problems knee hip. Males showed significantly higher values strength while females...

The surface of an austenitic stainless steel doped with N, B, and Ce (SUS304-NBCe), which was covered thin BN precipitated layers, has been characterized using Auger electron spectroscopy (AES), Fourier transform infrared, transmission microscopy, diffraction (TED), reflection high-energy (RHEED) techniques. Thermal desorption method also applied for evaluating its outgassing nature. AES spectra obtained from the layers coincided well those a hexagonal even in fine structures B(KLL) N(KLL)...

Conductive and transparent indium tin oxide (ITO) films with a thickness of 100 nm were deposited onto glasses Si(100) wafers by direct current (DC) radio frequency (RF) magnetron sputtering. The formation the annealing effect studied measurements resistivity, optical-transmission, X-ray diffraction scanning tunneling microscopy (STM). Experimental studies indicated those DC sputtering in 1% O 2 an /Ar gas mixture, without annealing, have lowest resistivity highest transmission. In addition,...

The procedure to measure liposome in aqueous solution has been examined using atomic force microscope (AFM). We concluded a chemical modified silicon wafer (substrate for AFM observation of liposome) with 3-aminopropyltrieth-oxysilane (APTES) which enabled us scan anionic softly water because they were keeping structures as vesicles and stably adsorbed on the substrate by electrostatic force. From captured topographic images, we counted amount analyzed distribution mean diameters, corrected...

Chronic lung disease (CLD) is the most common and serious in premature infants. In this study, we predict severity (mild or severe) of neonatal chest X-ray images using a convolutional neural network (CNN) to enable early intervention provide personalized treatment improve prognosis. Thirty subjects were tested leave-one-out cross validation experiment 30 11 patients with mild 19 severe at 7 days age. To prediction accuracy, proposed limit input image CNN field region use pre-training model...

Neonatal chronic lung disease (CLD) is the most common and serious in premature infants. No previous studies have used chest X-ray images. In this study, we propose to predict classify patients with without CLD from neonatal images using a convolutional neural network (CNN). We conducted 5-segment cross-validation experiment of 115 subjects at 7 days age. Accuracy AUC values 0.6 0.642 were obtained, respectively. Future work includes development an algorithm suitable for data estimation...

In this study, we describe a new variable selection method for the Mahalanobis Taguchi (MT) method. Typically, an orthogonal array is used in MT However, developed more intuitive and simpler using screening approach identification of appropriate variables diagnosis prior to creating space, contrast conventional method, which was carried out by repeated updating space. Thus, calculation proposed than that approach. We confirmed effectiveness two-class (normal abnormal). The results suggested...

In situ nanocharacterization of decomposition process SiO2 films on Si(111) using high temperature scanning probe microscopy and Auger in ultrahigh vacuum is reported. Due to insulating behavior SiO2, noncontact atomic force (NC-AFM) was employed at ∼950 K ∼10−8 Pa. Using conductive needle-sensors, simultaneous imaging conductivity topography performed. NC-AFM enabled clarifying initial stage void formation, where Si(111)-7×7 surfaces were confirmed by atomic-resolution tunneling microscopy....

近年歯科口腔外科において利用されるパノラマX線画像は比較的低被ばく量で撮影でき,患者の口腔内の歯牙の状態を記録できる.一方,歯科診療ではこれらの画像を読影し患者の診療録を作成しなければならないが,手間であり誤記載のおそれもある.また,大規模災害時における遺体の迅速な身元確認にも,データベース化された歯牙情報による照合は有効である.そこで,パノラマX線画像から自動で歯牙や治療痕といった情報を認識する手法が開発されている.これらの手法では未治療歯が主に認識の対象となっており,補綴物や根管治療痕を対象にしたものは少ない.本研究では,既存の歯牙自動認識の枠組みの上に,根管治療痕に着目した方法を追加することで,認識精度向上,より詳細な歯式の作成が目指された.2582症例のパノラマX線画像,1740本の根管治療痕を含むデータセットから,交差検証により歯牙認識として93.6%の正確度,根管治療痕単体では適合率94.6%が得られ,自動歯牙認識において根管治療痕検出による精度向上を確認した.