ジッソク ニ モトヅク シガイチ ノ カゼカンキョウ ノ ヒョウカ

The ground level wind speeds around two projected tall buiIdings in built-up areas were observed over a period of 3 years from the beginning of construction to end. Mean wind speed ratio and gust factor at ground level are obtained. The probability distributions of mean gradient wind in this area are approximated on the basis of the Weibull distribution. The probabilities of exceeding daily maxmum gust speed are calculated from these observed wind data. Then, the evaluation of the acceptability of ground level wind environment are discussed using a proposed pedestrian comfort criteria

ネツタイリュウ ニ ヨル クウキジュンカン ヲ リヨウシタ パッシブソーラーハウス ノ ジッケンテキケンキュウ

In a house facing to the south, it is usual that the solar radiation during the daytime in winter causes the large temperature difference between southern rooms and northern rooms. Northern rooms are often out of use because of their low temperature while southern rooms are at moderate temperature or are overheated. lf the passive technique is utilized for conveying the solar heat gain taken through the south-facing windows to the northern room, it may be expected that the temperature difference between the south and the north is decreased and that the thermal environment in the northern rooms is remarkably improved. In this investigation the air circulation due to natural convection is utilized as the technique for conveying the solar heat gain. It is studied here by comparative experiments using a tandem-type test house under the same climatic conditions, how the air circulation contribute to the increase of the air temperature in the northern rooms and what is the most suitable area of the channel for the air circulation. One test house, which is called "Air Circulation Type" is equipped with the air channel for circulation and another one, which is called "Ordinary Type" is not equipped with the channel. It has been confirmed beforehand that two test houses have the same air-tightness and that the indoor air temperature of them show the same value It each time in a day, when the air channel is completely blocked by flow dampers. When the air channel is opened, the effectiveness of the air circulation can be evaluated precisely by comoarative experiments using both types. The most suitable thickness of the air channel set in the north wall is examined by using various thickness of the air channely namely 1, 2, 5 (cm). In the case of thickness of 5 (cm), in which case the air volume of circulation is the largest among them, the air speed in the channel is about 40 (cm/s) in the daytime with solar radiation. In the nighttime the air speed is about 20 (cm/s) and the direction of the air flow is opposite to that in the daytime, because the heat loss from the south windows is larger than that flom the north windows in the night. The northern room air temperature in "Air Circulation TyPe" can be maintained 4 (degC) higher than that in "Ordinary TyPe" all day and is 8 (degC) higher than outdoor air temperature early in the morning. It may be concluded that this temperature difference between "Air Circulation Type" and "Ordinary TyPe" is due to the heat transport by air circulation and that this technique is useful to keep the northern room air temperature at higher level

トシ ニ オケル チヒョウメンオンドサ ノ ブッシツカクサン ニ オヨボス エイキョウ ニ カンスル ジッケンテキケンキュウ

This paper describes the effects of the ground surface temperature difference on gaseous diffusion in built-up area by ndd experiments and by the wind tunnel investigations. In the field experiments, the black panels with high absorbance of solar radiation were used as the model of the ground surface to produce the fully developed thermal boundary layer. It has been confirmed from the field experiments as follows ; (1) the thermal boundary layer is sufficiently developed in small-scale experiments by using the panels ; (2) the turbulent intensity of the air flow on the panels becomes larger in propotion to the total solar radiation on a horizontal plane. In the wind tunnel investigations, the thermal boundary layer observed in the field experiments was simulated by using the hot panel with electrical heaters. The other thermal boundary layers generated by the difference of the surface temperature were studied by changing the arrangement of the Panels. For example, the cool surface zone in "parks and green belts" was also simulated by the cold panel with cold water. The tracer gas was emitted from the stack upwind of the hot panel in order to clarify the effects of the surface temperature difference on gaseous diffusion. It has been confirmed from the wind tunnel investigations as follows ; (3) in the case of setting only the hot panel in the wind tunnel, when the temperature difference between the oncoming air and the surface of the hot panel becomes larger, the maximum concentration on the floor decreases gradually ; (4) when the cold panel is set on the leeward of the hot panel, a large cooled air region is generated on the cold panel. As the result, the maximum concentration appears at higher position from the ground surface than in the case of setting only the hot panel

被膜間摘出術を施行した副咽頭間隙神経鞘腫の検討

副咽頭間隙は，視野やワーキングスペースの面から手術操作に制限があるばかりではなく，重要血管，神経が走行しており，腫瘍の種類，大きさ，局在などから術前の診断，治療方法の決定に苦慮することも少なくない．その中で神経鞘腫は比較的発生頻度が高い腫瘍であるが，手術に関してアプローチ方法，摘出方法など明確な基準はないのが現状である．対象は，2014年4月から2018年8月までの間に副咽頭間隙に発生した神経鞘腫に対し，被膜間摘出術を施行した5例とした．検討項目は，年齢，性別，診断契機，病悩期間，腫瘍の最大径，腫瘍の局在（茎突前区，後区），術前診断（術前予測由来神経，穿刺吸引細胞診）と術後診断，術前症状，術後症状とした．結果として術後の神経脱落症状の発生率は，副咽頭間隙以外に発生した神経鞘腫より有意に高い結果であったが，永続性麻痺だけで検討すると有意差は認めず被膜間摘出術の有効性が示された

四倍体鱼的种质改良研究

β—actin基因启动子驱动的草鱼生长激素基因cDNA—“全鱼”基因 pCAgcGHc用显微注射方法导入四倍体鱼卵 ,获得了生长快 ,个体硕壮的转基因四倍体鱼。 2 4 0日龄时 ,转基因鱼平均体重为 30 2 7g ,是对照鱼的 3 1倍 ,平均体长是对照的 1 34倍 ,并可从部分转基因雄鱼挤出精液 ,而对照鱼尚无此现象。对 19尾转基因四倍体雄鱼的精液和尾鳍DNA做PCR检测 ,外源基因的阳性率分别为 94 7%和 52 6%。最后 ,展望了转基因四倍体鱼在转基因鱼产业化方面的应用前

Nearshore FADs in Solomon Islands: monitoring their effectiveness and cost-benefit. Report to Solomon Islands Ministry of Fisheries and Marine Resources as part of the New Zealand funded MSSIF programme

The Solomon Islands government through the Ministry of Fisheries and Marine Resources (MFMR) has identified the deployment of nearshore FADs as one of their priority activities for inshore marine resource management. From 2010-2013 the New Zealand funded MSSIF (Mekem Strong Solomon Island Fisheries) programme funded WorldFish to implement a nearshore FAD project “Developing a Solomon Islands National Inshore FAD Programme” in partnership with MFMR with the aim of collecting the information needed to develop a Solomon Islands inshore FAD implementation plan for the Ministry. This report summarises the findings from that study