検索結果 8481 件
| JaLCDOI | 10.18926/15403 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_27_2_19.pdf |
| 著者 | 奈良 重俊| 東辻 浩夫| |
| 抄録 | Numerical simulations of a single layer recurrent neural network model in which the synaptic connection matrix is formed by summing cyclic products of succesive patterns show that complex dynamics can occur with the reduction of a connectivity parameter which is the number of connection between neurons. The structure in these dynamics is discussed from the viewpoint of realizing complex function using complex dynamics. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1993-03-25 |
| 巻 | 27巻 |
| 号 | 2号 |
| 開始ページ | 19 |
| 終了ページ | 40 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307451 |
| JaLCDOI | 10.18926/15401 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_30_2_21.pdf |
| 著者 | Tachibana Hiroyuki| 東辻 浩夫| |
| 抄録 | In order to apply quantum waveguides to electronic devices, we calculate the electrostatic potential in the split-gate quantum wire and establish the relation between the electrostatic potential and the square well potential which is usually assumed in simulations of these waveguides. The height and width of the square well potential are expressed as simple functions of the gate voltage and their dependencies are clarified. The results may be useful in calculating the characteristics of electronic devices based on quantum waveguides as functions of controllable parameters such as gate voltage. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1996-03-29 |
| 巻 | 30巻 |
| 号 | 2号 |
| 開始ページ | 21 |
| 終了ページ | 25 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307620 |
| JaLCDOI | 10.18926/15400 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_27_2_11.pdf |
| 著者 | 岡 久雄| 山本 辰馬| Saratani Keiji| Tanaka Masahiro| Kawazoe Takayoshi| |
| 抄録 | The use of dental implants has increased together with increases in the human life span and it has become an imperative subject for dentists to familiarize themselves with this treatment modality. Unfortunately, there has been no practical and quantitative method for in vivo evaluation of the stability of dental implants. In the tooth mobility examination, the tactile sense of natural teeth is different from that of dental implants. The authors have developed an automatic diagnosis system of tooth mobility for clinical use. The biomechanical mobility of peri-implantium is measured with a pseudo-random vibration, from which the viscoelasticity c1, c2, k of peri-implantium is obtained. The diagnosis system has been applied to the quantitative evaluation of the stability of implants : endodontics endosseous implants (titanium pin), endosseous implants (Bioceram). It has also been applied to the evaluation of the long-term prognoses of dental implantation (Bioceram) and the examination of Intramobile implant (IMZ), and the satisfactory results have been obtained. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1993-03-25 |
| 巻 | 27巻 |
| 号 | 2号 |
| 開始ページ | 11 |
| 終了ページ | 17 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308018 |
| JaLCDOI | 10.18926/15399 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_27_2_1.pdf |
| 著者 | 梶原 康博| 大崎 紘一| |
| 抄録 | Precedence relation in assembly has been determined by experience only. Now, an expert system is developed for determining such precedence relation. The conjugate states of the units of a product are shown in face frames and unit frames following the frame model. Seven rules are formulated. They consider geometrical interference of units, and make the precedence relation enable operation time to be shorter, and the number of JIG and substandards to be smaller. These rules are programized by computer language(PROLOG). |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1993-03-25 |
| 巻 | 27巻 |
| 号 | 2号 |
| 開始ページ | 1 |
| 終了ページ | 9 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307210 |
| JaLCDOI | 10.18926/15398 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_27_1_93.pdf |
| 著者 | 西垣 誠| Sudinda Teddy| Hishiya Tomoyuki| 河野 伊一郎| |
| 抄録 | In this paper the author will be describe phenomena of advection dispersion in subsurface flow by using Eulerian Lagrangian Finite Element Method. Where Finite Element Method with Galerkin formulation and weigthed residual method is used to solve seepage and advection dispersion equation. The problem of one dimensional and two dimensional rectangular wave are analyzed in this paper. And the result of numerical analyses will be compared with analytical solutions. The numerical results showed the very good agreement with the analytical solutions. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1992-11-25 |
| 巻 | 27巻 |
| 号 | 1号 |
| 開始ページ | 93 |
| 終了ページ | 105 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307768 |
| JaLCDOI | 10.18926/15396 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_27_1_81.pdf |
| 著者 | 阿部 宏史| |
| 抄録 | This paper aims to examine the impact of JR (Japan Railways) Seto Ohashi Line on residential land value. First, the study examines the trends in land value in the area along JR Seto Ohashi Line by applying the area comparison method. The method estimates the effect of JR Seto Ohashi Line on residential land value by comparing land values between the study area and the Okayama Metropolitan Area. Second, the property value method is applied to measure the effect of railroad construction. The effect is estimated with a residential land-value regression, which is calibrated using land value data along the Seto Ohashi Line. Finally, the results are compared with the empirical studies in the Greater Tokyo Region, and various features of the impact of railroad construction on land value are identified. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1992-11-25 |
| 巻 | 27巻 |
| 号 | 1号 |
| 開始ページ | 81 |
| 終了ページ | 92 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307856 |
| JaLCDOI | 10.18926/15395 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_27_1_65.pdf |
| 著者 | 奈良 重俊| Hara Yuji| 東辻 浩夫| |
| 抄録 | Quantum mechnical electron wave transfer between two quantum wires which are weakly coupled via a thin potential barrier is considered. The total electronic states are calculated with both analytical ( no field case ) and numerical methods ( under applied electric fields ). The transfer efficiency is evaluated for several specified cases of geometrical structures, potential barrier heights and the externally applied electric field. Estimated trasfer time is of the order of one picosecond in typical mesoscopic structures. The model in this paper can be used to determine important structure parameters for experiments on electron directional coupler controled by external elctric field. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1992-11-25 |
| 巻 | 27巻 |
| 号 | 1号 |
| 開始ページ | 65 |
| 終了ページ | 79 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307405 |
| JaLCDOI | 10.18926/15394 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_27_1_55.pdf |
| 著者 | 東辻 浩夫| Tachibana Hiroyuki| Hashimoto Seiji| 奈良 重俊| |
| 抄録 | The ground state of a system of electrons accumulated in a pair of coupled symmetric quantum wires is analyzed on the basis of density functional theory. It is shown that, in a domain of physical parameters, electrons are localized in either of wires. The main contribution to the total energy of this system comes from the Hartree energy, or the electrostatic energy, and the exchange-correlation energy between electrons. The ground state is determined by a competition between these contributions: We have symmetric electron distributions when the Hartree energy dominates and asymmetric (localized) states are realized in the opposite case. This kind of simple system with bistable electronic states may be applied to semiconductor memory devices. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1992-11-25 |
| 巻 | 27巻 |
| 号 | 1号 |
| 開始ページ | 55 |
| 終了ページ | 64 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307892 |
| JaLCDOI | 10.18926/15392 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_27_1_45.pdf |
| 著者 | 香川 直己| 和田 修己| Hai, Xu| 古賀 隆治| Sano, Hiroya| Inubushi, Kazuyuki| |
| 抄録 | A prototype device based on the tunable diode laser absorption spectrometry was constructed and the atmospheric methane concentration near the terrain in a rice paddy field was measured. An open optical path of 50 m length was employed along with a PbSnTe diode laser. Diurnal change of methane density with 30 seconds temporal resolution was recorded associated with meteorological parameters. A feasibility was proven for a practical application for in situ study of atmospheric methane. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1992-11-25 |
| 巻 | 27巻 |
| 号 | 1号 |
| 開始ページ | 45 |
| 終了ページ | 53 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307877 |
| JaLCDOI | 10.18926/15391 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_27_1_33.pdf |
| 著者 | 島田 行恭| 鈴木 和彦| 佐山 隼敏| |
| 抄録 | Neural nets have recently become the focus of much attention, largely because of their wide range of complex and nonlinear problems. This paper presents a new integrated approach using neural networks for diagnosing process failures. The fault propagation in process is modeled by causal relationships from the fault tree and its minimal cut sets. The measurement patterns required for training and testing the neural network were obtained from fault propagation model. The network is able to diagnose even in the presence of malfunction of certain sensors. We demonstrate via a nitric acid cooler process how the neural network can learn and successfully diagnose the faults. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1992-11-25 |
| 巻 | 27巻 |
| 号 | 1号 |
| 開始ページ | 33 |
| 終了ページ | 44 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307902 |
| JaLCDOI | 10.18926/15390 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_27_1_27.pdf |
| 著者 | Hirashima Masao| 稲葉 英男| |
| 抄録 | Heating and refrigerating technique such as snow melting of road and cold storage by utilizing temperature difference between underground soil and atmosphere is widely used[1-4] in a cold area. In the 1st Report, heat transfer characteristics of two phase closed thermosiphon for extracting geothermal energy is studied fundamentally. In the empirical study, heat extract rate is measured in connection with the change of atmospheric temperature utilizing real two thermosiphons on the site. Temperature distribution on the surface of the thermosiphon and underground soil around it is also measured. Based on the data of the empirical experiment, it is confirmed that prevention of freezing for fire hydrant can be achieved by geothermal heat utilizing two phase closed thermosiphon. Present paper describes the heat transfer behavior of the thermosiphon as the 2nd report. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1992-11-25 |
| 巻 | 27巻 |
| 号 | 1号 |
| 開始ページ | 27 |
| 終了ページ | 32 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307336 |
| JaLCDOI | 10.18926/15388 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_27_1_11.pdf |
| 著者 | Hirashima Masao| 稲葉 英男| |
| 抄録 | To prevent freezing of road and aquaduct by extracting geothermal heat with two phase closed thermosiphon has been widely used in a cold area. Both heat transfer characteristics in the underground soil and function of the thermosiphon to extract geothermal heat have to be made clear for the purpose of the above system. This study is directed for the purpose to prevent freezing of fire hydrant and composed of the fundamental experiment and the empirical experiment. In the fundamental study, heat transfer behavior is studied experimentally in the small size filling bath representing the underground soil layer. After recording temperature distribution, heat transfer coefficient is measured, they are proceeded into the correlation between the dimensionless number of Nusselt, Rayleigh and Fourier. The fundamental study is described as the first report. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1992-11-25 |
| 巻 | 27巻 |
| 号 | 1号 |
| 開始ページ | 11 |
| 終了ページ | 26 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307419 |
| JaLCDOI | 10.18926/15385 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_27_1_1.pdf |
| 著者 | Uno, Yoshiyuki| Kubota, Shin-ichiro| Nakajima, Toshikatsu| Ogata, Kojiro| Tada, Nobuhiko| |
| 抄録 | Direct patterning of copper coated ceramic circuit board is experimentally investigated with Q-switched Nd:YAG laser in order to shorten the time of the trial manufacture of electronic circuit board and to adapt the flexible design change. It is pointed out that the fast direct patterning the speed of which reaches about 100 mm/s is possible if the repetition frequency and the average power are selected properly. Furthermore cutting off and/or drilling of ceramic board are also possible under the condition that the repetition frequency is less than 3kHz. This technique makes it possible the mask1ess patterning of ceramic circuit board which has been widely used recently in place of conventional glass-epoxy or phenolic resin circuit board, and it leads to the shorter time limit of delivery as compared with the conventional end-milling method. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1992-11-25 |
| 巻 | 27巻 |
| 号 | 1号 |
| 開始ページ | 1 |
| 終了ページ | 10 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307702 |
| JaLCDOI | 10.18926/15384 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_30_1_99.pdf |
| 著者 | Wang, Ming| 和田 修己| 古賀 隆治| |
| 抄録 | A cylindric mirror was used, in place of a parabolic mirror, to collimate the crescent blue laser beam radiated from the Cerenkov SHG in channel waveguide configuration. The cylindric mirror radius is requested to be twice the focal length of the parabolic mirror. The focusing effect of the cylindric mirror in collimation can be compensated by slightly lifting the mirror in its normal direction. Under the condition that the mirror was declined by 5.56° and lifted by 25 μm, we got the collimated beam with divergence angle less than 1.3 mrad. In the focusing experiment, the collimated beam was focused with spotsize of 1.8 μm. The details on the analysis and experiment are reported. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1995-12-28 |
| 巻 | 30巻 |
| 号 | 1号 |
| 開始ページ | 99 |
| 終了ページ | 110 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307418 |
| JaLCDOI | 10.18926/15372 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_30_1_25.pdf |
| 著者 | Sun Yonghao| 加川 幸雄| |
| 抄録 | Identification of unknown electric charges or sources distributed in space is made from the data observed over the field boundary using dual reciprocity boundary element models. The inhomogeneous term of the Poisson field can equivalently be expressed as the linear combination of the functions associated with the particular solutions to transform into Laplace equation. For the solution procedure, the variational formulation is employed, in which the regular boundary integral approach is incorporated to avoid the singularity. Numerical examples are presented to demonstrate the availability and the capability. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1995-12-28 |
| 巻 | 30巻 |
| 号 | 1号 |
| 開始ページ | 25 |
| 終了ページ | 33 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307314 |
| JaLCDOI | 10.18926/15370 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_27_2_73.pdf |
| 著者 | Kroumov Valeri T.| 井上 昭| 増田 士朗| |
| 抄録 | This report deals with the problem of designing an adaptive observer for estimating unknown periodical disturbances. This is very practical problem because in the area of control of servomechanisms such disturbances are always encountered. When the disturbance cannot be directly measured or eliminated at the source it is necessary to perform a prediction. When a periodical disturbance is present the frequencies appear as unknown parameters and they have to be identified. In order to identify the unknown parameters, it is necessary to transform the composite system model, which contains the models of the controlled system and the disturbances, into observable canonical form. In addition, an inverse transformation is required to calculate the estimates of the present disturbances. In this report, firstly, a review of an adaptive observer for estimation of unknown periodical disturbances is presented. Later a calculation of the disturbance estimate is derived using the algebraic programming system REDUCE. The proposed method here allows to perform all the necessary transformations and to obtain the disturbance estimation without using the transformation matrix. The calculations of these transformations are complicated and, hitherto, there is no simple method to perform them. The results of disturbance estimation are illustrated by two examples. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1993-03-25 |
| 巻 | 27巻 |
| 号 | 2号 |
| 開始ページ | 73 |
| 終了ページ | 85 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307731 |
| JaLCDOI | 10.18926/15345 |
|---|---|
| タイトル（別表記） | 気管支喘息の発症における加齢の影響について |
| フルテキストURL | 063_142_147.pdf |
| 著者 | 光延 文裕| 貴谷 光| 岡崎 守宏| 御舩 尚志| 谷崎 勝朗| |
| 抄録 | Skin tests, serum total IgE levels, specific IgE antibodies against each allergen, bronchial reactions provoked by allergens and histamine release from basophils are well known as prameters of immediate allergic reactions. The incidence of positive immediate skin reaction to allergens such as house dust, ragweed, Aspergillus Alternaria, Cladosporium and Broncasma decreased with aging. On the other hand, the incidence of positive skin reaction to Candida albicans was higher in cases between the age of 41 and 50 and cases over the age of 61 compared to that in the other groups classified by age. Serum IgE levels was highest in cases aged between 0 and 30. The levels of serum IgE decreased with aging. The incidence of positive RAST scores (more than 2+) and positive bronchial reaction to house dust were highest in cases between 0 and 30, and decreased with aging. However, the positive ratio of these tests against C. albicans were highest in cases between 41 and 50. The degree of histamine release from basophils of asthmatics induced by anti-IgE was consistently high without any correlation to aging when their serum IgE levels were more than 501 IU/ml. In the cases with serum IgE levels of less than 300 IU/ml, basophil reactivity to anti-IgE decreasd with aging. Basophil reactivity to house dust was generally dependent on the levels of specific IgE antibodies against the allergen. Although basophil reactivity to C. albicans was also high in cases with positive RAST scores, some cases with a RAST score of 0+ or 1+ showed high or moderate basophil reactivity. Moderate or high reactivity of basophils was frequently observed in cases between 41 and 50 and cases over age 61. |
| キーワード | Skin test (皮内反応) IgE Provocation test (吸入誘発試験) Basophil reactivity (好塩基球の反応性) Aging (加齢) |
| 出版物タイトル | 岡大三朝分院研究報告 |
| 発行日 | 1992-06 |
| 巻 | 63巻 |
| 開始ページ | 142 |
| 終了ページ | 147 |
| ISSN | 0913-3771 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307130 |
| JaLCDOI | 10.18926/15320 |
|---|---|
| タイトル（別表記） | 気管支喘息における気道の反応性および炎症反応におよぼす加齢の影響について |
| フルテキストURL | 064_089_096.pdf |
| 著者 | 谷崎 勝朗| 貴谷 光| 御船 尚志| 光延 文裕| 梶本 和宏| 杉本 啓介| 原田 英雄| 木村 郁郎| |
| 抄録 | Ventilatory function, cellular composition in bronchoalveolar lavage (BAL) fluid and release of chemical mediators from leucocytes were examined in 25 older asthmatics (mean age 66.7 years) and 25 younger asthmatics (mean age 45.1 years) in relation to clinical asthma types. 1. Ventilatory function tests showed that the values of ventilatory parameters such as % MMF, % V(50) and % V(25) were lower in older subjects than in younger subjects, and a significant difference was found in the % V(50) value between the two age groups. Regarding clinical asthma types, the values of % MMF, % V(50), and V(25) were significantly lower in both younger and older subjects with type II. 2. In analysis of cellular composition in BAL fluid, the proportion of BAL lymphocytes was significantly lower in type II older subjects than in younger subjects with the same type. A significantly increased proportion of BAL neutrophils was observed in both younger and older subjects with type II. 3. The release of leukotriene C(4) (LTC(4)) from leucocytes was significantly lower in type II older subjects than in younger subjects with the same type, and LTC(4) release in patients with type II was also significantly lower than that in those with other asthma types in both younger and older subjects. The release of histamine and leukotriene B(4) (LTB(4)) from leucocytes was not significantly different between the two age groups. These results demonstrate that ventilatory function, cellular composition in BAL fluid, and the release of chemical mediators from leucocytes are affected by aging and clinical asthma types. |
| キーワード | Ventilatory function (換気機能) Cellular composition in BAL fluid (気道内細胞成分) chemical mediators (化学伝達物質) aging (加齢) clinical asthma type (臨床病型) |
| 出版物タイトル | 岡大三朝分院研究報告 |
| 発行日 | 1993-06 |
| 巻 | 64巻 |
| 開始ページ | 89 |
| 終了ページ | 96 |
| ISSN | 0918-7839 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307744 |
| JaLCDOI | 10.18926/15318 |
|---|---|
| タイトル（別表記） | 老令者の気管支喘息,各臨床病型における換気機能の特徴 |
| フルテキストURL | 063_044_049.pdf |
| 著者 | 谷崎 勝朗| 貴谷 光| 岡崎 守宏| 御舩 尚志| 光延 文裕| 谷水 将邦| 本家 尚子| 草浦 康浩| 高取 明正| 奥田 博之| 木村 郁郎| |
| 抄録 | Ventilatory function was examined in 20 elderly patients with bronchial asthma in relation to clinical asthma types, and the results were compared with those of younger asthmatics. 1. Ventilatory parameters such as FEV(1.0%), % PEFR, % MMF, % V(50) and % V(25), which repressent obstructive ventilatory dysfunction, were in general lower in older asthmatics than in the youger cases. 2. The values of % V(50) and % V(25), representing ventilatory dysfunction in small airways, were significantly lower in the older subjects with type Ib and II compared to the younger cases with same types. 3. Markedly decreased values in ventilatory parameters, particularly in % MMF, % V(50) and % V(25) were observed in both older and younger subjects with type II. The results suggest that ventilatory function decreases with aging and the decrease is related to the pathophysiological changes in the airways. |
| キーワード | Ventilatory function (換気機能) small airways (細気管支) clinical asthma types (臨床病型) elderly asthmatics (老年者気管支喘息) |
| 出版物タイトル | 岡大三朝分院研究報告 |
| 発行日 | 1992-06 |
| 巻 | 63巻 |
| 開始ページ | 44 |
| 終了ページ | 49 |
| ISSN | 0913-3771 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307531 |
| JaLCDOI | 10.18926/15316 |
|---|---|
| タイトル（別表記） | 老年者の気管支喘息. アレルギー反応と気道細胞反応 |
| フルテキストURL | 063_039_043.pdf |
| 著者 | 谷崎 勝朗| 貴谷 光| 岡崎 守宏| 御舩 尚志| 光延 文裕| 谷水 将邦| 本家 尚子| 草浦 康浩| 越智 浩二| 原田 英雄| 木村 郁郎| |
| 抄録 | Clinical features of bronchial asthma in the elderly were analyzed by observlng IgE-mediated allerglc reactions evaluated by immediate skin reaction and specific IgE antibodies to allergens, ventilatory function and cellular composition in bronchoalveolar lavage (BAL) fluid. 1. The frequency of positive immediate skin reaction and positive RAST score to allergens was in general low in the elderly patients over age 70. 2. Ventilatory function was widely variegated, and fifteen cases (60%) of the 25 Subjects showed considerably high values of FEV(l.0%), % PEFR, % MMF, % V(50) and % V(25), and the mean value of FEV(1.0%) in these cases was 71.3%. 3. The decreased value of % V(25) was related to BAL neutrophilia in 2 cases, but any correlation was not found between BAL neutrophilia and decreased value of % V(25) in 9 csese of the eleven subjects who had the BAL examination. The results show that in asthma of elderly patients, IgE-mediated allergic reactions are weak, and that a decreased value of % V(25) can be observed without BAL neutrophilia. |
| キーワード | elderly subjects (老年者) lgE-mediated allergic reaction (IgE系反応) ventilatory function (換気機能) BAL neutrophilia (BAL好中球) bronchial asthma (気管支喘息) |
| 出版物タイトル | 岡大三朝分院研究報告 |
| 発行日 | 1992-06 |
| 巻 | 63巻 |
| 開始ページ | 39 |
| 終了ページ | 43 |
| ISSN | 0913-3771 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307727 |