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2022, 【要旨】

2019, 【要旨】

In the pursuit of efficient energy use, decoupling the sensible and latent loads of a Mechanical Vapour Compression Chiller system with the use of a Dehumidifier has been of great interest to society. Focusing purely on the sensible load allows the supply chilled water to be elevated to temperatures above the standard of 7°C. This paper focuses on using prior research on an elevated chilled water chiller system to carry out an exergy analysis, in order to identify the contribution of each and individual component to the total exergy destruction as well as the exergetic efficiency. Varying the temperature of the chilled water outlet conditions between 7-17°C provides valuable insight into how the total exergy destruction increases at a rate of 1.2% per degree Celsius of chilled water supply whilst the exergetic efficiency decreases at a rate of 1.4% per degree Celsius. The largest contributor to the exergy destruction is identified to be the compressor, whilst the evaporator and condenser show similar exergy destructions and the expansion valve has the lowest exergy destruction. These findings highlight the irreversibilities occurring within the system when the operation conditions of the chilled water are varied above the standard.

A 66-year-old man presented with progressive proptosis of the left eye associated with ocular pain. A computed tomographic scan showed a high density mass in the posterolateral portion of the left orbit. The patient underwent surgical removal of the tumor and histopathological examination revealed adenocarcinoma of unknown origin. To find out the primary focus of the tumor the patient was referred to our department, where biopsy of the prostate revealed adenocarcinoma. Further, immunohistochemical examination of the orbital tumor was performed and prostatic acid phosphatase was identified. Finally, we made a diagnosis of orbital metastasis from prostatic carcinoma. This paper presents a rare case of prostatic carcinoma with orbital metastasis and reviews the literature of the subject.

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We report a case of transitional cell carcinoma of a renal pelvis in a woman discovered after childbirth. A 38-year-old woman, who delivered an immature male infant in cesarean section 29 days prior to hospitalization, was admitted complaining of asymptomatic gross hematuria. Excretory urography and retrograde pyelography showed a filling defect of the right renal pelvis, Spontaneous urine cytology indicated class 5. Renal computed tomographic scan demonstrated a mass lesion in the right kidney. Right total nephroureterectomy and partial cystectomy was performed for diagnosis and treatment. Pathological diagnosis was papillary transitional cell carcinoma (grade 2). This is the first case of transitional cell carcinoma of the renal pelvis occurring in a childbearing woman in Japan.

この論文は国立情報学研究所の電子図書館事業により電子化されました。

1993, 【要旨】