Observations and measurements of discharge phenomena at falling of water drops

Observations and measurements of discharge phenomena at falling of water drops are examined for understanding of the lightning discharge at early stage. Since there is seldom investigation about the discharge phenomena, the investigation of this field is very important.The experiments are carried out with very simple apparatus which consists of a funnel with applied voltage and two needle electrodes. It is found that water drops spread like a cone shape at applying voltage and breakdown voltage with falling water drops decreases to 20 percent of that without falling them.我々は，落雷があった後激しい降雨があることを度々経験している。しかし雷に関する成書には，落雷への進展はストリーマの先端での電離作用によるとしており，落雷と降雨の関係を述べたものは見当たらない。我々はこの関係を明らかにしたいとこの研究を始めた。この研究は，より一般的には気体と液体の2相における一様非連続媒質での絶縁破壊現象ということになり，まだ未開拓の分野である

Effects of water drops on the flashover characteristics of insulator surface

As the fundamental investigations to make compact insulators, we recorded and observed behaviors of single or water drops on two specimens; a tile surface and a silicone rubber (SR) surface which imitates them of a porcelain and hydrophobic insulator respectively, with 8mm video in high alternative electric field. At the same time, flashover voltages (FOV) were measured in both cases. It is found from the experiments that in the case of SR, water drops are separeted and roll toward both electrodes and the decreases of FOV remain in small degree. It is also found that in the case of tile, water drops on it spread over the surface toward the both electrodes and the decreases of FOV are remarkably large.年々着実に増加するわが国の電力需要に対応するため，各電力会社では順次500kv送電を導入しており，さらには次世代の基幹系統として1000kv電送を推進している。このように，送電電圧がUHV化するにあたり，従来の技術を単純に延長したのでは鉄塔や碍子などの設備が巨大なものとなり，建設コストの上昇を避けることができない。さらには，国土の狭いわが国では環境への影響も配慮しなければならず，これら設備のコンパクト化が望まれる。懸垂碍子は降雨の際，その表面状態が汚損し，閃絡破壊電圧（flashover voltege以下FOV と呼ぶことにする。）が低下する。このことが長大懸垂碍子が必要な理由である。我々はまず，碍子表面の雨滴がどのような過程を経て閃絡破壊に至るのかを詳細に調べることからはじめた。本研究は磁器碍子および複合碍子の表面の両方を模擬したタイルとシリコンラパー（silicone rubb er以下SRと呼ぶ）上に水滴を置き，交流高電圧を印加して水滴が比較的少量の場合ととのような振る舞いをするのか把握するとともに，この水滴の振舞いとFOVとの関連を調べたので報告する

EFFECT OF THE QUANTITATIVE VARIATION OF LYSOZYME CHLORIDE WITH CHEMOTHERAPEUTICS FOR FEMALE ACUTE CYSTITIS ON THE THERAPEUTIC RESULT

Lysozyme is mucopolysaccharidase present in vivo, and has bacteriolytic, antibacterial and anti-inflammatory activities. Lysozyme was used in the chemotherapy of female acute cystitis and the effect of its quantitative variation on the therapeutic result was discussed. The subjects were 79 women with acute cystitis who came to the Urological Clinic of Kinki University Hospital and aged from 17 to 80 years. The control group including 20 patients were given only chemotherapeutics, the group consisting of 20 patients were given 100 mg lysozyme chloride (Neuzym@) per day together with the chemotherapeutics, the 200 mg group included 19 patients, and the 300 mg group contained 20 patients. The chemotherapeutic agents such as CEX, NA, AB-Pc were given with almost the same ratio. The therapeutic results were not so different between the 100 mg group and the control group. Though the ratio of the excellent effect was significantly higher in the 200 mg group than in the control group, the degree of the entire clinical effect in this group was not significantly different from that in the control group. In the 300 mg group, the ratio of the excellent result and the entire clinical effect were greatly superior to those in the control group. Accordingly, for obtaining the synergism of lysozyme chloride with chemotherapeutic drugs, administration of 300 mg/day is recommended

A Statistical Observation on the the Patients with Periodontal Diseases Part 7. Observation from questionnaires given patients, in 1990～1992 during their first visit to the clinic

The purpose of this study was to evaluate the condition of patients prior to periodontal treatment. The subjects were 285 patients (162 males, 123 females) who visited the periodontic department of Matsumoto Dental University Hospital between 1990 to 1992. Questionnaires completed by patients at their first visit were analyzed. These questionnaires covered topics such as age, gender, chief complaint, oral habits, favorite foods, periodontal treatment experiences and systemic diseases. The results were classified in to groups by age and gender. The results were as follows: 1. The 40～49 year-old group of male patients was predominant. 2. 38.6% of the patients were in moderate stages of periodontal disease. 3. The chief complaint was food impaction for 85.2% of the patients. 4. Among the male patients regarding favorite foods, the responses included drinking and smoking. 5. 50.2% of the patients had experienced some form ofperiodontal treatment. 6. Patients who brushed their teeth twice per day were predominant. 7. In regard to oral habits, 46.7% of the patients snored and most of those who snored were male patients. 8. Many of the 50～5 9 year-old group patients had hypertention and gastric ulcers. 9. Many of the 30～39 and 40～49 year-old groups of female patients had menoxenia and menorrhalgia