Noise is a key asset in air management applications. The use of slotless motors is an effective solution to mitigate the noise due to magnetic forces on teeth. In this paper, we propose a topology of slotless motors with toroidal winding that enables noise reduction and that simplifies the manufacturing process. With prototypes of this technology, we have been able to reduce the acoustic noise by 5dB in comparison with existing classical slotted motors.

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A test method based on the use of a simple circuit made by pump-line-load valve has been applied in order to characterize a variable displacement axial piston pump as to its hydraulic noise. The best anechoic conditions achieved, pump fluidborne noise and internal flow losses are provided by source impedance and ideal fl ow ripple evaluation. The influence of constructive parameters as pump port plate geometry and swash plate fastener has been taken into account and various working conditions on acoustic and functional performance examined. The limits of the test method identified, an alternative procedure has been proposed making use of simpler experimental data acquisition and computer programs on purpose worked out.

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エディスンが発明したキネトグラフとキネトスコープは、開発当初の1888年から、ロール・フィルムの使用を想定に入れていた。当初シリンダーに感光乳剤を塗布する、あるいはシリンダーを撮影用フィルム（セルロイドのシート状フィルム）で覆うという発想で進めていた実験は、ある時期からセルロイドのロール・フィルムを用いるようになる。先行研究においては、この変化は1889年8月にエディスンがパリを訪れた際に、フランスの生理学者マレーと出会い、当時マレーがクロノフォトグラフィの撮影に使用していた、紙ベースのロール・フィルムを知ったことがきっかけとなり、そこで初めてロール・フィルムの使用を思いついた、とされる場合がほとんどである。しかし、エディスンや従業員達は、エディスン渡仏以前からセルロイド・ロール・フィルムを実験に使用していたと裁判で証言しており、イーストマンは、1889年7月から10月の間のキネトグラフ開発担当者ディクスンとイーストマン社との間で交わされた手紙を裁判資料として提出し、8月24日に販売用のフィルム一巻き分をエディスンの研究所に送付したと裁判で証言している。これらの証言が正しいならば、エディスン渡仏後にロール・フィルムの使用を思いついた、という説は成り立たないことになる。本論文では、エディスン等が主張するように、エディスン渡仏以前にセルロイド・ロール・フィルムの使用が可能であったかを検討する。

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Measurement using a

camera and a 6-axis sensor under the camera is proposed to determine the distance from the camera to the surface of a object and the object’s position movement in two continuous frame images. This makes it possible to measure the 3D position of a object at half of the computational cost while keeping the same accuracy as using a stereo camera. 3D measurement experiments with several original images show that the computational time using the proposal is about twice as fast as that of a stereo camera. The proposed method is planning to be used to vehicles or mobile robots avoid obstacles, and its use as a depth meter is also investigated.

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This paper presents systemizations of deictic systems for the linguistic expression of person, space, and time in various languages, primarily based on hierarchies of tests for the presence, absence or underspecification of features. Deixis of person is often defined according to specifications for the deictic center ([±Speaker]) and for the relationship to the communicative event ([±Participant]). Deixis of space, often expressed in demonstratives, can be defined within the dimension of person (as above) or by specifications for spatial distance (e.g., [±Near], [±Far]). Some languages employ combinations of these two dimensions to distinguish meanings of demonstratives. Deixis of time takes the “speaking present” ([±SP]) as its primary distinction. It is further proposed that specifications for the feature of “reality” account for the future ([–R]) and present ([+R]), where the past is neutral for “reality”: [±R]. Time is typically expressed according to either the orientation whereby time moves through space (e.g., the Japanese rai-rai syuu ‘come-come week’), or that whereby ego moves through time (e.g., the English week after next), systematizable as a specification of direction from the future to the past (

-time type) or from the past to the future (-ego type).

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In this study, we propose a method for localizing an unknown

emitter by measuring a sequence of the frequency-of-arrival using a single observation platform. Furthermore, we introduce the position and velocity errors of the observation platform into the theoretical localization error equation to analyze the effect of these errors on the localization accuracy without Monte-Carlo simulations. The proposed theoretical error equation can propagate toward the time direction; therefore, the theoretical localization error can be evaluated at an arbitral time. We demonstrate that the localization error value obtained by the proposed equation and the RMSE evaluated by the Monte-Carlo simulation sufficiently coincide with one another.

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少自由度環状非線形結合振動子には振幅が空間的に局在する周期解が存在する．本発表では，移動型の局在解について安定性や分岐を調べた結果を述べる．

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The performance of commercially used trolling depressor was investigated in a flume tank. The ratio of distance between the snout of trolling depressor and the connecting point of leader was changed 3 to 43%. Flow speeds were varied from 0.75 to 1.05m/s. Three components of tension of leader were measured by three components load cell. Positions of connecting point were expressed in a space co-ordinate system located on attaching equipment of load cell. trace of connecting point was estimated basing on the equilibrium of three components of tension. performance of trolling depressor were recorded and analyzed at various conditions. Mean resultant tension increased in square of flow speed at any connecting points. Trolling depressor glided from side to side and turned at short period in any flow speed and the calculated trace of connecting point showed an eight figured shape. Theoretically estimated trace agreed with measured one within connected points less than 35% of ratio. Trolling depressor swung uniquely at 43% of the ratio. These results suggested that the distance between the snout and the connecting point affected performance of trolling depressor.

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Semi-captive Asian elephants (Elephas maximus) engaged in forestry activities in Myanmar account for 20% of all captive and semi-captive Asian elephants in the world, and are important for both forestry and the conservation of Asian elephant populations. Understanding

behavior of the semi-captive elephants is required to sustain them. Our specific goals are 1) to determine the range during free time, and 2) to determine the hourly distance during skidding and when off duty. Three elephants were fitted with handheld global navigation satellite systems with the signals of global positioning system to collect data on their movements. The elephants were generally located between 0.534 and 0.875 km from the camp with temporary housing of the elephant handler when not skidding (i.e., free time) and between 1.365 and 1.372 km when skidding (i.e., work time). The hourly distance during free time (0.622–0.655 km) and work time (1.522 and 1.629 km) did not differ greatly from the hourly distance of wild Asian elephants (0.010–1.500 km). The elephants remained within 0.875 km of the camp of the elephant handler, and some variation in movements among individuals was observed during free time. Thus, the conservation of forest in areas near the camp is important for the well-being of these elephants.

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The fieldsize in electron beam therapy is determined by the cone size. In cases of skin metastasis of a malignant tumor and so on, which need a large field size and whose area is much larger than the size of the cone, a large field size is usually produced by dividing the portals. However, the dose distribution at the border of the field becomes unequal, and hot and cold dose areas are produced according to the distance between portals. We tried the strip field technique in a large field along the long axis of the body in order to flatten the dose of the border employing the strip used for whole abdominal irradiation in ovarian cancer.
We set the film in Mix-DP and used the strip field technique with 2.5cm steps. We discussed the relationship between the interval (distance between portals) and the flattening of the dose within the field. Skin movement due to breathing and influences on the flattening of the dose were considered.
The proper flatness was obtained at depths of 0, 1, 2, and 3cm by setting the interval at 0.5cm. When skin movement was produced by breathing in ±1.5mm, the proper flaness was obtained also at a 0.5-cm interval. It seems that smoothing is increased by breathing.
An “electron beam strip” with a 2.5-cm step and 0.5-cm interval was clinically effective in the treatment of patients with skin metastasis of colon cancer.

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keyboard for eye-based Human-Computer Interaction: HCI is proposed for disabled and elderly persons, in particular. The current problems on eye-based HCI, (1) poor key-in success rate, and (2) slow key-in speed are to be overcome with the proposed keyboard. The keyboard is moved by the gaze of user looking at one of the enlarged semi-transparent keys located at the center and surrounding up/down/right/left hand sides. Selected key is always shown at the display center. Thus the selected key is easy to find and can be determined by blinking or by fixing one's eye on the key for a second. Experimental results of relations between key-in success rate and (1) variability of gaze location, (2) key size, (3) the number of keys, (4) camera resolution are introduced which show the validity of the proposed method. The detailed proposed system is described followed by performance evaluations to overcome the aforementioned problems.

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The thin liquid film entrained by a continuous immersed solid pulled through a tank is of the main interest in many industrial processes. In order to appraise the state of art, it has been reviewed the experimental and theoretical studies of a solid being withdrawn horizontally from a tank. This review has revealed that the open literature is scarce. The main objective of this paper is to study the above stated problem. To this end, it has been performed a series of experiences of horizontal withdrawal of wires from a tank of water, and an approximate theoretical model has been developed.

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