Abstract : Tri Auto ZX2 can be used for patency and glide path according to the manufacturer's instruction manual. However, no reports have verified these details. This study examined whether Tri Auto ZX2 can achieve patency and a glide path.

 The orifice of extracted human premolars was enlarged using #35. 08 EndoWave. Patency and glide path were prepared using OGP mode 180°, 300rpm in Tri Auto ZX2.

Group 1 : Patency was possible with D-

#10, but not with D- #15. EndoWave MGP #15 was used for the glide path.

Group 2 : Patency was possible with D-

#10, but not with D- #15. Superfile #15 was used for the glide path.

Group 3 : Patency was not possible with D-

#10 or #15. EndoWave MGP #10 was used for patency.

Group 4 : Patency was not possible with D-

#10 or #15. Superfile #10 was used for patency.

 A glide path could be prepared in all root canals in groups 1 and 2. Patency was possible in 49.1% of root canals in group 3 using Endowave MGP#10 with Tri Auto ZX2 OGP mode. Patency was possible in 68.7% of root canals in group 4 using superfile #10 with Tri Auto ZX2 OGP mode. 31.3% of stainless-steel files in group 4 broke when using OGP mode.

 It is suggested that Tri Auto ZX2 is a good motor for achieving patency and glide path after negotiation using D-

#10.

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A gas in a tube spontaneously oscillates when the temperature ratio between the tube ends exceeds a critical value. This spontaneous gas oscillation is applied to a liquid helium level . In the present study, to design a liquid nitrogen level using spontaneous gas oscillation, the critical value of the temperature ratio causing spontaneous gas oscillation for the case of nitrogen gas was numerically investigated. It was found that a tube in which an array of narrow circular tubes is located can work as a liquid nitrogen level . Hence, a tube with an array of narrow tubes was constructed and the liquid level of nitrogen put into a vessel was measured with the constructed tube. The measurements also demonstrated that the tube can work as a liquid nitrogen level .

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If the survey is made by the 200kc echo-sounder with sharp beam, the almost true shape of sea bottom is obtained within the error of 4% for the slope of bottom of 50° and 1% for 20°. We made survey by the 200kc fish- at the fishing-ground off Sanno, Odawara City on occasion of late. The difference, between the survey map by the 200kc fish- and that by the 14.5kc fish- the beam of which is not so sharp, is clear at the station where the shape of sea-bottom is complicated. The former is much more detailed and shows more closely the depth obtained by fisherman's experience than the latter. And the survey is easier by 200kc than by 14.5kc.

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We realize we've misplaced our keys and are frustrated by a massive search of the house. This paper develops a simple IoT-based key discovery method that uses a NodeMCU, a buzzer, and a battery. The method involved creating a key management method designed for key installation and developing a website to assist with key location. With her Google Chrome browser on the user's mobile phone, she can pinpoint the location of the lost key. When the website presses the key search button, it will play an IoT key-related beep and save time by streamlining the process. If you misplace your keys, you may search all over the house, but in the end, you may not be able to find them. This paper is extremely important in that it has developed a method for quickly finding keys using the method described above.

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In this study a color 3-D range operating at the video rate has been developed for the purposes of industrial and welfare application. The range with simplified circuits discriminated eight colors through classifying the R, G, B signals from binocular cameras into high and low brightness levels. The corresponding color boundaries were determined by comparing binarized brightness levels, thereby enabling the derivation of an accurate parallax signal. This was applied to three-dimensional measurements of distances and dimensions. The influence of color combinations on the distance acquisition rate was examined. The results showed that the is useful as a practical device.

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The writers have already published (1967) a study on the efficiency of the vertical fish used in the Northern Pacific salmon fishing grounds in regard to the sigle fish image constituted by a single fish image of Alaska pollack, but not by that of salmon and trout. So we carried out experiments for the purpose of developing a salmon fish . The performance of fish for salmon, having a frequency of 28 KHZ, is as follows:
1. The results of various experiments by the present writers as well as by others, prove that the swimming layer of salmon at daytime, and also at nighttime, is not more than 50m in depth. So the detection layer need not necessarily cover deeper than 50m in depth.
2. The reason why on salmon image appear with the use of the vertical fish may perhaps be due to the fact that the salmon run away as the fishing boats approach, thus slipping out of the sound beam of the fish . The direction of the sound beams of our new salmon fish , manufactured for trial purposes, can be transmitted towards the ship side downward at 30° oblique.
3. In order to separate the image of salmon from that of Alaska pollack, we attached a special circuit (fish discriminating circuit) to let the smaller reflection level of Alaska pollack cut off because of its smaller size compared with that of salmon, and also a logarithm amplifier to supplement a propagation attenuation of ultrasonic waves by distance.
The results of such experiments proved a close correlation between the number of a single fish image as recorded by the net setting and the number of salmons caught by the gill net next morning. The recorded single image of fish is reasonably identified to be that of salmon.

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The authors have developed a new type laser range , which enables a mobile robot to measure the distance to a natural object located one to five meters ahead with an error less than two percents. The system uses laser as weak as 1[mW], a safe level for human eyes, and is workable under bright daytime sunlight of about 100, 000[lx]. This laser range can quickly process data while compensating the motional error induced by the robot on which it is mounted and makes real time measurements of objects located ahead.
This laser range is featured by plural redundant range measuring systems and a newly introduced real time signal processing technique of the redundant signals. The laser range shows strong noise reduction characteristic by acting together with two conventional methods, namely, conventional optical filtering which preliminarily eliminates noise and the DDD signal processing proposed by the authors for separating reflected pulseform signals from ambient light on video signals.
The effectiveness of the proposed laser range system was demonstrated under direct sunlight by an experimental model mounted with two CCD cameras and a semiconductor laser projector of 1[mW] output power with 830[nm] wave length.

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Staphylococcus epidermidis (S. epidermidis) often cause sepsis and related diseases by transfusion of contaminated platelet concentrates (PCs). The proliferation process of this bacterium in PCs has been unclear, thus, bio-imaging system was applied for analyzing the dynamics of S. epidermidis in PCs. S. epidermidis were spiked into PCs or Luria Bertani (LB) broth. These samples were collected at each sampling time during incubation (up to 7 days), and colony-forming-units were counted. Bacterial number and their size distribution in each sample were also determined with a new bio-imaging system. The morphological characters of S. epidermidis growing in the samples were observed precisely by scanning electron microscopy (SEM). The numbers of S. epidermidis were stable for 48 hr after the spiking as lag-phase, while the bio-imaging analysis also showed that aggregates proliferated during “lag-phase.” The aggregates were also observed in LB media, however, their sizes were much smaller than those in PCs. SEM suggested that the aggregates were micro-colonies (MCs) of staphylococcal cells and cores of the MCs are composed with platelets (PLTs). Out results suggested that S. epidermidis formed floating MCs in PCs during “lag-phase.” Therefore, the term of lag phase of S. epidermidis in PCs should be called as “pseudo-lag phase.” The initial processes of forming MCs in PCs are thought to be an interaction between bacterial cells and PLTs. Floating MCs would be the source of biofilms on the inside of PC storage bags. New information obtained in this study would be useful for understanding the dynamics of growing bacteria in PCs.

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These days, it has been pointed that ultrasonic range is very useful for some purpose in robot navigation. The usages of ultrasonic range finders are, for example, recognition of the type of a crossing, detection the obstacle and avoidance of it and so on.
This paper represents some features of an array type and a rotary type ultrasonic range for autonomous mobile robot. And by using these ultrasonic sensor systems, we describe a means of recognizing workspace, and avoiding obstacles among others in detail. We have made some experiments with 2 types ultrasonic range . Experimental results verify its effectiveness in a mobile robot navigation.

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Cyclone dedusters are used in diverse contexts due to their many advantages over other primary collectors. The post cyclone (PoC) is a new secondary collector situated at the top of a conventional reverse flow cyclone, which utilizes the residual swirl available at the gas outlet (vortex ) of the cyclone to capture a certain fraction of the escaped dust. In this paper, one design of PoC is tested where the particles are collected in a bleed flow drawn from the PoC. Subsequent to the particle separation, the lean bleed flow is recycled back to the inlet of the cyclone. The experiments conducted at different bleed flow rates and inlet velocity indicate an increase in overall efficiency of cyclone by 6% in average, and reduction in emission from the vortex by 5-9%.

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A mobile robot requires searching and understanding its immediate environment, when it runs unknown route. There are many researches which making an environmental map using the laser range and the wheel encoder. When using two or more sensors, these methods faced to problem which is higher cost, system complexity and synchronization difficulty. As these reason, this research presents a new method of making an environmental map in a closed area using the mobile robot equipped with only the laser range , which can attach in various mobile objects, without limiting a mobile mechanism to wheels. This paper reports progress of this research by present, the experiment of making an environmental map in a building, and its problem from now.

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This paper proposes a new smoothing technique for range images taken by a pulsed Time-of-Flight range . A Time-of-Flight range gives a range value from the sensor to the target by measuring the time until the emitted light is reflected on the target's surface and returned to the sensor. At the same time, the power of the reflected light is also measured as a side product of the range value for the most of range finders. The basic idea of the proposed technique is that the reflectance and range images are utilized for smoothing the range image corrupted by noise so that the detailed shape in the range image is preserved by applying the trilateral filter. Simulations and experiments using a laser range are successfully carried out for verifying the performance of the proposed technique.

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In this paper, we consider the problem of estimating motion and shape parameters of a plane undergoing three different motion models using both a CCD camera and a laser range . The camera observes features on the moving plane perspectively or orthographically. The laser range observes a cross section of the plane as a line. We use this time-varying line information for the estimation problem of motion and shape parameters, and obtain the extent to which motion and shape parameters can be estimated.

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システムは, 幾何学的な確率とベイズ統計, および正規確率密度関数を用いて, 空間と頻度の情報を統合し, 対象中心のモデル出現確率分布図を作成する.対象中心のモデルには, 例えば, 特定の型 (モデル) の鉱床があり, 又は、鉱床に伴う変質帯や, そのほか, 平面図状に正規の形として表現できるどんなものでもよい.モデルは, 制御領域における規模, 形, 平均値, 標準偏差値によって表現され, 研究対象地域にその結果が適用される.串木野鉱床は石英, 石灰石, カリ長石を伴う鉱脈群からなり, 1660年以来これまでに金を55トン, 銀を456トン産出してきた.串木野鉱床近傍の南北に6km東西に10kmの部分領域が, モデルの制御領域として使われた.この制御領域の中で, データ図化, 等高線図, クラスタ解析によって, 母集団を鉱床不毛帯と, 鉱床帯に分類した.ナトリウムは, 長軸3.1km短軸1.6kmの楕円形領域の溶脱帯を形成していた.カリは3kmと1.3kmの楕円形領域の中で, あるいは溶脱しあるいは逆に富化し, いずれにしても組成が変化していた.硫黄は5.8kmと1.6kmの楕円形領域の中で富化していた.ナトリウム, カリ, 硫黄の分析データがある地表岩石試料233個を用いて, 串木野鉱床を含む12km対30kmの対象領域からシステムにより鉱床分布高確率領域を推定した.ナトリウム, カリ, 硫黄のそれぞれにおける高確率領域は, 串木野主鉱脈の東方4km付近に相互に重なるか, ずれて分布していた.一般的に, システムが指摘する高確率領域は, 主鉱脈からずれ, 串木野鉱脈とほぼ同じ時期の安山岩と石英安山岩―安山岩にかかるだけでなく, 串木野の東と北西に当たるより新しい堆積岩や安山岩, 凝灰岩層にもかかっている.鉱床賦存高確率領域は, 串木野鉱脈近傍に同じパターンで見られるし, 1.5km東の古い金鉱化帯である羽島地域や, 串木野鉱脈より18km西にある古い金鉱化帯の八重山地域から西へ2kmの所に中心を持つ東西2.5km南北1kmに広がった地域にも同じ様な高確率のパターンが見られた.

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We recently introduced a biologically realistic and reliable significance analysis of the output of a popular class of motif finders [16]. In this paper we further improve our significance analysis by incorporating local base composition information. Relying on realistic biological data simulation, as well as on FDR analysis applied to real data, we show that our method is significantly better than the increasingly popular practice of using the normal approximation to estimate the significance of a 's output. Finally we turn to leveraging our reliable significance analysis to improve the actual motif finding task. Specifically, endowing a variant of the Gibbs Sampler [18] with our improved significance analysis we demonstrate that de novo finders can perform better than has been perceived. Significantly, our new variant outperforms all the finders reviewed in a recently published comprehensive analysis [23] of the Harbison genome-wide binding location data [9]. Interestingly, many of these finders incorporate additional information such as nucleosome positioning and the significance of binding data.

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