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Low-Power CMOS CNN Cell and its Application to an Oscillatory CNN
Hisashi Tanaka,Koichi Tanno,Hiroki Tamura,Kenji Murao 대한전자공학회 2008 ITC-CSCC :International Technical Conference on Ci Vol.2008 No.7
In this paper, we propose a low-power operational transconductance amplifier (OTA) for low-power CMOS cellular neural networks (CNN) cell. The OTA use MOSFETs operating in the weak inversion region. The transconductance gm can be changed by changing the external bias voltage. The proposed OTA is verified by HSPICE simulations with the 0.18 ㎛ standard CMOS device parameters. From the results, the power consumption is less than 3.5 ㎼ with 1.2 V power supply. As an application of the proposed OTA, an oscillatory CNN circuit using two CNN cells with the proposed OTA is presented.
Sakuma, Hisashi,Tanaka, Ichiro,Yazawa, Masaki,Oh, Anna Korean Society of Plastic and Reconstructive Surge 2021 Archives of Plastic Surgery Vol.48 No.3
Recent reports have described several cases of double muscle transfers to restore natural, symmetrical smiles in patients with long-standing facial paralysis. However, these complex procedures sometimes result in cheek bulkiness owing to the double muscle transfer. We present the case of a 67-year-old woman with long-standing facial paralysis, who underwent two-stage facial reanimation using two superficial subslips of the serratus anterior muscle innervated by the masseteric and contralateral facial nerves via a sural nerve graft. Each muscle subslip was transferred to the upper lip and oral commissures, which were oriented in different directions. Furthermore, a horizontal fascia lata graft was added at the lower lip to prevent deformities such as lower lip elongation and deviation. Voluntary contraction was noted at roughly 4 months, and a spontaneous smile without biting was noted 8 months postoperatively. At 18 months after surgery, the patient demonstrated a spontaneous symmetrical smile with adequate excursion of the lower lip, upper lip, and oral commissure, without cheek bulkiness. Dual-innervated muscle transfer using two multivector superficial subslips of the serratus anterior muscle may be a good option for long-standing facial paralysis, as it can achieve a symmetrical smile that can be performed voluntarily and spontaneously.
Hiroshi Shimoda,Shuko Terazawa,Shoketsu Hitoe,Junji Tanaka,Seikou Nakamura,Hisashi Matsuda,Masayuki Yoshikawa 한국식품영양과학회 2012 Journal of medicinal food Vol.15 No.12
Ceramides (Cer) and glucosylceramides (GlcCer) play an important role in moisturizing the epidermis. Dietary GlcCer has been reported to improve transepidermal water loss (TEWL). However, the effect of GlcCer on epidermal Cer and GlcCer has not been well established. Therefore, we prepared a GlcCer-rich fraction (GCFr) from rice and evaluated its effect on TEWL and epidermal Cer and GlcCer in mice. In addition, we examined the effect of GlcCer (d18:2) contained in GCFr on the changes in Cer and GlcCer in a human epidermal equivalent. Oral dosing of GCFr (3 and 10 mg/[kg·day]) improved TEWL treated with sodium dodecyl sulfate. In the skin, epidermal Cer 1 was increased, and GlcCer (esterified ω-hydroxy fatty acid and sphingosine [EOS]) and a complex mixture of GlcCer (NS), (NP), and (C24,26-AS), known as GlcCer A/B were decreased by the GCFr. These changes were accompanied with the enhancement of glucosylceramide synthase (GCSase) and glucocerebrosidase expression. On the other hand, GlcCer (d18:2) increased Cer 1, Cer 2, GlcCer (EOS), and GlcCer A/B in a human epidermal equivalent accompanied with expression of GCSase and epidermal maturation markers. These results suggest that oral dosing of rice-derived GlcCer can compensate for epidermal loss of Cer by enhancing epidermal GlcCer metabolism. Rice-derived GlcCer may improve epidermal water loss and barrier function.
The Effect of Mechanical Stress on Cell Characteristics in MONOS Structures
Oh, Young-Taek,Roh, Il-Pyo,Kino, Hisashi,Tanaka, Tetsu,Song, Yun-Heub Institute of Electrical and Electronics Engineers 2018 IEEE transactions on electron devices Vol.65 No.10
<P>We investigated the impact of mechanical stress on the cell characteristics of metal–oxide–nitride–oxide–semiconductor (MONOS) structures through experimental observations based on a curvature method for residual stress extraction and an analysis of the interface state. Residual stress induced on a substrate was observed to change from compressive to tensile depending on the tungsten process conditions; a high interface trap density was extracted under a high compressive stress environment based on a silicon bonding model. These interface trap densities were suggested as being attributable to a critical factor weakening the leakage characteristics of the MONOS structure. Besides, interface traps interrupted electron tunneling due to unintended charge trapping at the interface, which deteriorated memory characteristics indicated by a reduction in trap density. These results experimentally supported the effects of mechanical stress on device characteristics and reliability, which could be a straightforward way toward understanding the impact of stress for improved future flash memory applications.</P>
Oh, Young-Taek,Sim, Jae-Min,Toan, Nguyen Van,Kino, Hisashi,Ono, Takahito,Tanaka, Tetsu,Song, Yun-Heub IEEE 2019 IEEE transactions on electron devices Vol.66 No.4
<P>The effects of the external stress on memory device characteristics are numerically discussed, and experimental observations are made, based on the wafer curvature method for extraction of stress. An analysis of the interface state is then performed. The external force applied to the device was controlled by depositing a metal film on the wafer backside; then, the residual stress induced on the substrate was extracted. We observed that the dangling bond generated by the residual stress increases the trap site and deteriorates the interface properties. A resulting degradation of cell characteristics occurred, including an increase in the leakage current and degradation of the memory window, featuring a reduction in the oxide/nitride/oxide trap density, which worsens as the magnitude of stress increases. From these results, we concluded that minimizing the stress is essential for retaining the cell characteristics. Especially, our results are expected to be of great help in determining the effect of external force on the memory characteristics during the back-end-of-line processing.</P>
Effect of Colored Potato Flakes Against Acetaminophen-induced Liver Damage in Rats
Kiyoshi Ohba,Shoko Watanabe,Kyu-Ho Han,Naoto Hashimoto,Takahiro Noda,Ken-ichiro Shimada,Hisashi Tanaka,Mitsuo Sekikawa,Michihiro Fukushima 한국식품과학회 2007 Food Science and Biotechnology Vol.16 No.3
We examined the hepatoprotective effects of colored potato flakes on acetaminophen(AAP)-induced liver damage in rats. F344/DuCrj (8 week-old) rats were fed a cholesterol-free diet with 54,9486 g of α-corn starch/100 g diet and were orally treated with 25% colored flakes of Kitamurasaki (KM: light purple), Northern Ruby (NR: red), and Queen (SQ: medium purple) potatoes co-administered with AAP (0.5 g/100 g diet)for 4 weeks. The hepatic thiobarbituric acid-reactive substances (TBARS) values in the KM, NR, and SQ group were significantly lower (p<0.05) than those in the control groups with and wothout AAP. Furthermore, the hepatic catalase, Mn-superoxide dismutase (SOD), and Cu/Zn-SOD mRNA levels in the KM, NR, and SQ groups were higher than those in the control groups with and without AAP. The present findings suggest that colored potato flakes are useful as a prophylactic agent against oxidative liver damage.