Development of Simulated Remote Monitoring and Operation System under Unstable Electric Power Supply

In this study, a simulated remote monitoring and operation system was developed for an assumed remote area energy plant in a developing country with few skilled operators and unstable electric power supply. It is useful for skilled operators to be able to monitor and operate the energy system from a remote site. Moreover, low-power equipment is required for the Web server in order to reduce the electric power consumption of the remote monitoring system. The system has the function of remote monitoring of data obtained from sensors through a programmable logic controller (PLC), while the monitoring function is realized by a Web application. The PLC can be operated from a remote monitoring site. The simulated remote monitoring and operation system was constructed using an Internet connection and a virtual private network (VPN) connection. The Internet connection was used for open monitoring of acquired data by the public. The VPN was used for secure remote operation of the device on the plant side from a monitoring PC. The effectiveness of the developed system was conï¬rmed though experiments with a simple simulated plant

Statistical study on propagation characteristics of Omega signals (VLF) in magnetosphere detected by the Akebono satellite

This paper shows a statistical analysis of 10.2 kHz Omega broadcasts of an artificial signal broadcast from ground stations, propagated in the plasmasphere, and detected using an automatic detection method we developed. We study the propagation patterns of the Omega signals to understand the propagation characteristics that are strongly affected by plasmaspheric electron density and the ambient magnetic field. We show the unique propagation patterns of the Omega 10.2 kHz signal when it was broadcast from two high-middle-latitude stations. We use about eight years of data captured by the Poynting flux analyzer subsystem on board the Akebono satellite from October 1989 to September 1997. We demonstrate that the signals broadcast from almost the same latitude (in geomagnetic coordinates) propagated differently depending on the geographic latitude. We also study propagation characteristics as a function of local time, season, and solar activity. The Omega signal tended to propagate farther on the nightside than on the dayside and was more widely distributed during winter than during summer. When solar activity was at maximum, the Omega signal propagated at a lower intensity level. In contrast, when solar activity was at minimum, the Omega signal propagated at a higher intensity and farther from the transmitter station.Comment: 14 pages, 12 figure

マルチGNSS受信機の連携による低緯度電離層プラズマ計測の実現

金沢大学理工研究域電子情報通信学系GPSに代表される衛星測位システムの位置決定の精度は、地表高度約80kmから数100kmにある電離層（電離した気体が高密度で存在する領域）の影響を受ける。本研究では、様々な衛星測位システムからの信号と安価な受信機を利用して電離層のプラズマ（荷電粒子）を高い空間分解能で観測する手法の確立を目指す。低緯度地域において電離層プラズマのリアルタイム監視が実現できれば、衛星測位システムの位置決定精度の向上につながると期待される。研究課題/領域番号:19K04407, 研究期間(年度):2019-04-01 -出典：研究課題「マルチGNSS受信機の連携による低緯度電離層プラズマ計測の実現」課題番号19K04407（KAKEN：科学研究費助成事業データベース（国立情報学研究所）） （https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19K04407/）を加工して作

The E89K Mutation in the Matrix Protein of the Measles Virus Affects In Vitro Cell Death and Virus Replication Efficiency in Human PBMC

Matrix protein is known to have an important role in the process of virus assembly and virion release during measles virus replication. In the present in vitro study, a single mutation of E89K in the matrix protein was shown to affect cell death and virus replication efficiency in human PBMC. One strain with this mutation caused less cell death than the parental virus, and possessed high virus replication efficiency. Moreover, by Annexin V-FITC staining, polycaspase FLICA staining, and double labeling with poly-caspase FLICA and the Hoechst stain, the cell death seen was shown to be apoptosis

Induction of immune response in macaque monkeys infected with simian–human immunodeficiency virus having the TNF-α gene at an early stage of infection

AbstractTNF-α has been implicated in the pathogenesis of, and the immune response against, HIV-1 infection. To clarify the roles of TNF-α against HIV-1-related virus infection in an SHIV-macaque model, we genetically engineered an SHIV to express the TNF-α gene (SHIV-TNF) and characterized the virus's properties in vivo. After the acute viremic stage, the plasma viral loads declined earlier in the SHIV-TNF-inoculated monkeys than in the parental SHIV (SHIV-NI)-inoculated monkeys. SHIV-TNF induced cell death in the lymph nodes without depletion of circulating CD4+ T cells. SHIV-TNF provided some immunity in monkeys by increasing the production of the chemokine RANTES and by inducing an antigen-specific proliferation of lymphocytes. The monkeys immunized with SHIV-TNF were partly protected against a pathogenic SHIV (SHIV-C2/1) challenge. These findings suggest that TNF-α contributes to the induction of an effective immune response against HIV-1 rather than to the progression of disease at the early stage of infection

Effects of Preservation with Pre-Fermented Green Juice (FGJ) on Fermentation Quality and Energy and Nitrogen Utilization of Round-Baled Alfalfa Silage by Dairy Cattle

This study was conducted to examine the effects of pre-fermented green juice (FGJ) of epiphytic lactic acid bacteria (LAB) on the fermentation quality and animal performance of round-baled alfalfa silage (Medicago stativa L.,cv. Dupuits). Ensiling treatments of wilting and FGJ additives (WFGJ) and direct-cut and FGJ additives (DFGJ) improved the fermentation quality of alfalfa silage more than that of wilting (W). Enhanced fermentation in the WFGJ and DFGJ silage was also associated with the increases of energy and nitrogen utilization of the silage by dry Holstein dairy cattle, as fed on diets formulated with alfalfa silage, oat hay, and oat grains

Solitary pulmonary metastasis from prostate sarcomatoid cancer

<p>Abstract</p> <p>Background</p> <p>Pulmonary metastasis from prostate cancer is considered to be a late event, and patients can be treated with chemotherapy or hormonal manipulation. However, there has been only a few reports on surgical resection for pulmonary metastasis from prostate cancer.</p> <p>Case Presentation</p> <p>We present a surgical case of solitary pulmonary metastasis from prostate cancer. A 73-year-old man underwent pelvic evisceration for prostate cancer. Histopathological examination revealed a poorly differentiated adenocarcinoma with a sarcomatoid carcinoma component. During postoperative follow-up, chest computed tomography showed a nodular shadow in the lung, and thoracoscopic wedge resection of the lung was performed. Histopathological examination revealed a histological appearance similar to that of the prostate sarcomatoid carcinoma. This is the first reported case of solitary pulmonary metastasis from prostate sarcomatoid cancer.</p> <p>Conclusion</p> <p>Isolated pulmonary metastasis from prostate sarcomatoid cancer is extremely rare, but surgery could be the treatment of choice.</p