The solar climate of our Moon is analyzed using the results of numerical simulations and the recently released data of the Diviner Lunar Radiometer Experiment (DLRE) to assess (a) the resulting distribution of the sur...The solar climate of our Moon is analyzed using the results of numerical simulations and the recently released data of the Diviner Lunar Radiometer Experiment (DLRE) to assess (a) the resulting distribution of the surface temperature, (b) the related global mean surface temperature T<sub>s</sub>>, and (c) the effective radiation temperature T<sub>e</sub> <sub></sub>often considered as a proxy for T<sub>s</sub>> of rocky planets and/or their natural satellites, where T<sub>e</sub> <sub></sub>is based on the global radiation budget of the well-known “thought model” of the Earth in the absence of its atmosphere. Because the Moon consists of similar rocky material like the Earth, it comes close to this thought model. However, the Moon’s astronomical features (e.g., obliquity, angular velocity of rotation, position relative to the disc of the solar system) differ from that of the Earth. Being tidally locked to the Earth, the Moon’s orbit around the Sun shows additional variation as compared to the Earth’s orbit. Since the astronomical parameters affect the solar climate, we predicted the Moon’s orbit coordinates both relative to the Sun and the Earth for a period of 20 lunations starting May 24, 2009, 00:00 UT1 with the planetary and lunar ephemeris DE430 of the Jet Propulsion Laboratory of the California Institute of Technology. The results revealed a mean heliocentric distance for the Moon and Earth of 1.00124279 AU and 1.00166376 AU, respectively. The mean geocentric distance of the Moon was 384792 km. The synodic and draconic months deviated from their respective means in a range of -5.7 h to 6.9 h and ±3.4 h, respectively. The deviations of the anomalistic months from their mean range between -2.83 d and 0.97 d with the largest negative deviations occurring around the points of inflection in the curve that represents the departure of the synodic month from its mean. Based on the two successive passages of the Sun through the ascending node of the lunar equator plane, the time interval between them co展开更多
Objective: A series of new and practical branthytherapy Egis-equipment was invented (State Patent No.:95250233.X) and has been facilitated intralaritary branchytherapy for oral cavity carcinoma,in order to improve loc...Objective: A series of new and practical branthytherapy Egis-equipment was invented (State Patent No.:95250233.X) and has been facilitated intralaritary branchytherapy for oral cavity carcinoma,in order to improve local radiation dose and protect normal tissues.Methods: In accordance with the characteristic of Ir\+\{192\}, the plumbum blocks of different sizes with thickness of 0.6cm, 0.9cm and 1.5cm, and section in ""?""?" "?" "forms were designed and made. With a combined use of 4mm metal tube applicator of Modern Afterloading Machine, it can hold up 75%～95% radiation. A total of 11 patients with squamous cell carcinoma in oral cavity were given 2～6 times local radiation dose with DT10～36Gy, 5～8 weeks after external irradiation with the dose of DT40～70Gy given. Result: ① Of all the patients, no evident radiation injury was probed in mucosaes tissue behind the blocks, within the follow-up periods of three months. ②For disappearance of local carcinoma after full external radiation,it is more effective to give intralavitary branchytherapy dose above DT30Gy. ③Average local dosage is improved for DT20Gy with the equipment.Conclusion: This equipment is convenient and safe.The proper application of the equipment results in improved local dosage and local control rate, in well-protected normal展开更多
文摘The solar climate of our Moon is analyzed using the results of numerical simulations and the recently released data of the Diviner Lunar Radiometer Experiment (DLRE) to assess (a) the resulting distribution of the surface temperature, (b) the related global mean surface temperature T<sub>s</sub>>, and (c) the effective radiation temperature T<sub>e</sub> <sub></sub>often considered as a proxy for T<sub>s</sub>> of rocky planets and/or their natural satellites, where T<sub>e</sub> <sub></sub>is based on the global radiation budget of the well-known “thought model” of the Earth in the absence of its atmosphere. Because the Moon consists of similar rocky material like the Earth, it comes close to this thought model. However, the Moon’s astronomical features (e.g., obliquity, angular velocity of rotation, position relative to the disc of the solar system) differ from that of the Earth. Being tidally locked to the Earth, the Moon’s orbit around the Sun shows additional variation as compared to the Earth’s orbit. Since the astronomical parameters affect the solar climate, we predicted the Moon’s orbit coordinates both relative to the Sun and the Earth for a period of 20 lunations starting May 24, 2009, 00:00 UT1 with the planetary and lunar ephemeris DE430 of the Jet Propulsion Laboratory of the California Institute of Technology. The results revealed a mean heliocentric distance for the Moon and Earth of 1.00124279 AU and 1.00166376 AU, respectively. The mean geocentric distance of the Moon was 384792 km. The synodic and draconic months deviated from their respective means in a range of -5.7 h to 6.9 h and ±3.4 h, respectively. The deviations of the anomalistic months from their mean range between -2.83 d and 0.97 d with the largest negative deviations occurring around the points of inflection in the curve that represents the departure of the synodic month from its mean. Based on the two successive passages of the Sun through the ascending node of the lunar equator plane, the time interval between them co
文摘Objective: A series of new and practical branthytherapy Egis-equipment was invented (State Patent No.:95250233.X) and has been facilitated intralaritary branchytherapy for oral cavity carcinoma,in order to improve local radiation dose and protect normal tissues.Methods: In accordance with the characteristic of Ir\+\{192\}, the plumbum blocks of different sizes with thickness of 0.6cm, 0.9cm and 1.5cm, and section in ""?""?" "?" "forms were designed and made. With a combined use of 4mm metal tube applicator of Modern Afterloading Machine, it can hold up 75%～95% radiation. A total of 11 patients with squamous cell carcinoma in oral cavity were given 2～6 times local radiation dose with DT10～36Gy, 5～8 weeks after external irradiation with the dose of DT40～70Gy given. Result: ① Of all the patients, no evident radiation injury was probed in mucosaes tissue behind the blocks, within the follow-up periods of three months. ②For disappearance of local carcinoma after full external radiation,it is more effective to give intralavitary branchytherapy dose above DT30Gy. ③Average local dosage is improved for DT20Gy with the equipment.Conclusion: This equipment is convenient and safe.The proper application of the equipment results in improved local dosage and local control rate, in well-protected normal
