1996年9月16—19日,我参加了在法国里昂INSA(Institut National de Sciences Ap-pliqtlees de Lyon)举行的第14届欧洲热物性会议。1 会议概况欧洲热物性会议始于1968年。1990年前每两年举行一次;1990年后,为配合全球范围三大洲热物性会...1996年9月16—19日,我参加了在法国里昂INSA(Institut National de Sciences Ap-pliqtlees de Lyon)举行的第14届欧洲热物性会议。1 会议概况欧洲热物性会议始于1968年。1990年前每两年举行一次;1990年后,为配合全球范围三大洲热物性会议的均衡召开,改为每3年召开一次,即在美洲、欧洲与亚洲轮流举行,成为全球三大热物性会议之一。1993年8月在葡萄牙举行了第13届欧洲热物性会议。今年(1996年)9月在里昂召开了第14届欧洲热物性会议。展开更多
The post-growth treatment of a [100]-oriented diamond film was performed to improve the film quality. The characteristic of post-growth film was investigated by using the RAMAN spectrum and the capacitance-frequency c...The post-growth treatment of a [100]-oriented diamond film was performed to improve the film quality. The characteristic of post-growth film was investigated by using the RAMAN spectrum and the capacitance-frequency curve. The results show that the resistivities and frequency response enhance after the post-treatments in solution of H2SO4 and H2O2 and an annealing under N2 atmosphere at 500 ℃ for 60 min. Under a bias voltage of 100 V, the net photocurrent is obtained under 55Fe(5.9 keV) X-rays and 241Am (5.5 MeV) α particles radiation, respectively. The photocurrent increases rapidly at first and becomes stable for the “pumping” effect with the radiation time.展开更多
Hawking radiation of black ring solutions to 5-dimensional Einstein-Maxwell-dilaton theory is analyzed by use of the Parikh-Wilczek tunneling method. To get the correct tunneling amplitude and emission rate, we adopt ...Hawking radiation of black ring solutions to 5-dimensional Einstein-Maxwell-dilaton theory is analyzed by use of the Parikh-Wilczek tunneling method. To get the correct tunneling amplitude and emission rate, we adopt and develop the Angheben-Nadalini-Vanzo Zerbini covariant approach to cover the effects of rotation and electronic discharge all at once, and the effect of back reaction is also taken into account. This constitutes a unified approach to the tunneling problem. Provided the first law of thermodynamics for black rings holds, the emission rate is proportional to the exponential of the change of Bekenstein-Hawking entropy. Explicit calculation for black ring temperatures agrees exactly with the results obtained via the classical surface gravity method and the quasi-local formalism.展开更多
In the experimental study, AGE-782 thermal instrument was used to detect the infrared radiation variation of coal and sandstone (wave-length range 3.6～5.5 μm was used). It's discovered that coal and sandstone fa...In the experimental study, AGE-782 thermal instrument was used to detect the infrared radiation variation of coal and sandstone (wave-length range 3.6～5.5 μm was used). It's discovered that coal and sandstone failure under load have three kinds of infrared thermal features as well as infrared forewarning messages. That are: (1) temperature rises gradually but drops before failure ; (2) temperature rises gradually but quickly rises before failure; (3) first rises,then drops and lower temperature emerges before failure. The further researches and the prospect of micro-wave remote sensing detection .on ground pressure is also discussed.展开更多
Samples of thickened waste activated sludge （TWAS） at two different concentrations were exposed to microwave radiation. Some of the samples were not allowed to heat up, to study the athermal effect of microwaves. Th...Samples of thickened waste activated sludge （TWAS） at two different concentrations were exposed to microwave radiation. Some of the samples were not allowed to heat up, to study the athermal effect of microwaves. The samples exposed to microwaves where their temperature was allowed to increase showed a higher degree of chemical oxygen demand （COD）, protein and carbohydrate solubilization compared to a control. The size distribution of particles was changed after exposure of TWAS to microwaves. These results were also observed in the samples exposed to microwaves but kept at a constant temperature, suggesting the occurrence of a microwave athermal effect. Thermally （samples experiencing a temperature increase） and athermally （samples that were maintained at ambient temperature） microwaved subsequent anaerobic biodegradation. samples produced more methane than the non-microwaved controls in展开更多
Optofluidics is the integration of optics and microfluidics(so-called lab on the chip). Wherein the actuation of liquid is a key technic. In a variety of methods for controlling microscale liquid, the light actuation ...Optofluidics is the integration of optics and microfluidics(so-called lab on the chip). Wherein the actuation of liquid is a key technic. In a variety of methods for controlling microscale liquid, the light actuation is particularly interesting. The light actuation offers a novel way to control the flow of fluids for biomedical and biotechnological applications, etc.. The complexity and cost of devices sometimes may be greatly reduced by using complete optical control and may be more flexible in operation than other methods. However the light actuation of liquid is a burgeoning field as well as optofluidics. There is lots of work to do. Here we systematically describe four mechanisms for the light actuation of liquid based on the following points: optoelectrowetting, photothermal effect, radiation pressure, photosensitive substance.展开更多
Based on particles in a dynamical geometry, extending the Parikh ＇s method of quantum tunneling, radiation, we deeply investigate the quantum tunneling radiation of Kerr-NUT bhck hole. When self-gravitating action, e...Based on particles in a dynamical geometry, extending the Parikh ＇s method of quantum tunneling, radiation, we deeply investigate the quantum tunneling radiation of Kerr-NUT bhck hole. When self-gravitating action, energy conservation, and angular momentum conservation are taken into account, the emission rate of the particle on the event horizon is related to the change of Bekenstein-Hawking entropy and the emission spectrum is not precisely thermal, but is consistent with an underlying unitary theory.展开更多
Objective： To study the effects of acetaminophen （ACE） combined with radiation on the progeny of the human glioma cell line SHG-44, and to investigate if ACE may be an useful therapeutic radiosensitivity agent in t...Objective： To study the effects of acetaminophen （ACE） combined with radiation on the progeny of the human glioma cell line SHG-44, and to investigate if ACE may be an useful therapeutic radiosensitivity agent in the treatment of recurrent human glioma. Methods： A randomized, controlled experiment, was performed at the Department of Radiology Laboratory, the First Hospital Affiliated to Soochow University, between September 2004 and January 2006. Brain glioma SHG-44 cells were divided into three groups： SHG-44, SHG-44-10, and SHG-44-10 ＋ ACE cells groups. The SHG-44-10 cells group was irradiated with dose of 10 Gy by a linear accelerator （6 MVX）. It was passaged for 15 generations and cultured in RPMI-1640 culture media. Then SHG-44-10 ＋ ACE cells group was treated with ACE. Measures： Community re-double time, mean lethal dose （DO）, extrapolation number （N）, fraction surviving fraction irradiated by 2 Gy dose （SF2）, quasi-threshold dose （Dq）, and cell cycle. Results： The SF2 of the SHG-44, SHG-44-10, and SHG-44-10 ＋ ACE cells groups were 70.8%, 80.6% and 45.2%, respectively, with significance （P = 0.040）. The SHG-44-10 and SHG-44-10 ＋ ACE cells groups were irradiated with 8 Gy. After 12 hours, the G2/M ratio of the SHG-44-10 and SHG-44-10 ＋ ACE cells groups were indicating significantly higher ratio compared to pre-irradiated groups （P 〈 0.01）. After 24 hours, the G2/M ratio of the SHG-44-10 cells group decreased rapidly, while the ratio of the SHG-44-10 ＋ ACE cells group still maintained in high level. Conclusion： In the present study, Subtoxic dose of ACE increased the radiosensitivity of the progeny of irradiated human glioma cell. ACE may be an useful radiosensitivity agent in the treatment of recrudescent human malignant glioma.展开更多
The alkali halide crystals exhibit significant TL （thermoluminescence） properties when exposed to ionizing radiation. The defects in crystals can be produced in high concentration by means of chemical impurities, ra...The alkali halide crystals exhibit significant TL （thermoluminescence） properties when exposed to ionizing radiation. The defects in crystals can be produced in high concentration by means of chemical impurities, radiation, mechanical work and others processes. This study is concerned with the TL properties of quaternary mixtures of alkali halide crystals when they are irradiated with beta and gamma-rays. The samples were made mixing KCI, KBr, RbCI, RbBr salts doped with divalent europium （Eu2＋）, by the Czochralski method sintering at 400 ~C during 6 hours in a N2 atmosphere. The samples were exposed to beta and gamma rays. We present the TL glow curves, demonstrating that the nature of the defects in the crystals can be produced by trapping states and recombination mechanisms. The highest temperature TL curves are the most interesting due to possible applications in dosimetry and optical energy storage.展开更多
文摘1996年9月16—19日,我参加了在法国里昂INSA(Institut National de Sciences Ap-pliqtlees de Lyon)举行的第14届欧洲热物性会议。1 会议概况欧洲热物性会议始于1968年。1990年前每两年举行一次;1990年后,为配合全球范围三大洲热物性会议的均衡召开,改为每3年召开一次,即在美洲、欧洲与亚洲轮流举行,成为全球三大热物性会议之一。1993年8月在葡萄牙举行了第13届欧洲热物性会议。今年(1996年)9月在里昂召开了第14届欧洲热物性会议。
基金Project(60577040) supported by the National Natural Science Foundation of China Project (0404) supported by Shanghai Foundation of Applied Materials Research and Development+1 种基金 Projects(0452nm051, 05nm05046) supported by the Nano-technology Project of Shanghai Project(T0101) supported by Shanghai Leading Academic Disciplines
文摘The post-growth treatment of a [100]-oriented diamond film was performed to improve the film quality. The characteristic of post-growth film was investigated by using the RAMAN spectrum and the capacitance-frequency curve. The results show that the resistivities and frequency response enhance after the post-treatments in solution of H2SO4 and H2O2 and an annealing under N2 atmosphere at 500 ℃ for 60 min. Under a bias voltage of 100 V, the net photocurrent is obtained under 55Fe(5.9 keV) X-rays and 241Am (5.5 MeV) α particles radiation, respectively. The photocurrent increases rapidly at first and becomes stable for the “pumping” effect with the radiation time.
基金The project supported by National Natural Science Foundation of China under Grant No. 90403014.Acknowledgments The author would like to thank X.H. Meng for discussions.
文摘Hawking radiation of black ring solutions to 5-dimensional Einstein-Maxwell-dilaton theory is analyzed by use of the Parikh-Wilczek tunneling method. To get the correct tunneling amplitude and emission rate, we adopt and develop the Angheben-Nadalini-Vanzo Zerbini covariant approach to cover the effects of rotation and electronic discharge all at once, and the effect of back reaction is also taken into account. This constitutes a unified approach to the tunneling problem. Provided the first law of thermodynamics for black rings holds, the emission rate is proportional to the exponential of the change of Bekenstein-Hawking entropy. Explicit calculation for black ring temperatures agrees exactly with the results obtained via the classical surface gravity method and the quasi-local formalism.
文摘In the experimental study, AGE-782 thermal instrument was used to detect the infrared radiation variation of coal and sandstone (wave-length range 3.6～5.5 μm was used). It's discovered that coal and sandstone failure under load have three kinds of infrared thermal features as well as infrared forewarning messages. That are: (1) temperature rises gradually but drops before failure ; (2) temperature rises gradually but quickly rises before failure; (3) first rises,then drops and lower temperature emerges before failure. The further researches and the prospect of micro-wave remote sensing detection .on ground pressure is also discussed.
文摘Samples of thickened waste activated sludge （TWAS） at two different concentrations were exposed to microwave radiation. Some of the samples were not allowed to heat up, to study the athermal effect of microwaves. The samples exposed to microwaves where their temperature was allowed to increase showed a higher degree of chemical oxygen demand （COD）, protein and carbohydrate solubilization compared to a control. The size distribution of particles was changed after exposure of TWAS to microwaves. These results were also observed in the samples exposed to microwaves but kept at a constant temperature, suggesting the occurrence of a microwave athermal effect. Thermally （samples experiencing a temperature increase） and athermally （samples that were maintained at ambient temperature） microwaved subsequent anaerobic biodegradation. samples produced more methane than the non-microwaved controls in
基金Fund of Nanjing University of Posts & Telecommunications(NY206076)
文摘Optofluidics is the integration of optics and microfluidics(so-called lab on the chip). Wherein the actuation of liquid is a key technic. In a variety of methods for controlling microscale liquid, the light actuation is particularly interesting. The light actuation offers a novel way to control the flow of fluids for biomedical and biotechnological applications, etc.. The complexity and cost of devices sometimes may be greatly reduced by using complete optical control and may be more flexible in operation than other methods. However the light actuation of liquid is a burgeoning field as well as optofluidics. There is lots of work to do. Here we systematically describe four mechanisms for the light actuation of liquid based on the following points: optoelectrowetting, photothermal effect, radiation pressure, photosensitive substance.
基金The project supported by National Natural Science Foundation of China under Grant No. 10347008 and Science Foundation for Fundamental Research of Sichuan Province under Grand No. 05JY029-092. We would like to thank Prof. Zhang Jing-Yi and Dr. Ren Jun for their beneficial discussions.
文摘Based on particles in a dynamical geometry, extending the Parikh ＇s method of quantum tunneling, radiation, we deeply investigate the quantum tunneling radiation of Kerr-NUT bhck hole. When self-gravitating action, energy conservation, and angular momentum conservation are taken into account, the emission rate of the particle on the event horizon is related to the change of Bekenstein-Hawking entropy and the emission spectrum is not precisely thermal, but is consistent with an underlying unitary theory.
文摘Objective： To study the effects of acetaminophen （ACE） combined with radiation on the progeny of the human glioma cell line SHG-44, and to investigate if ACE may be an useful therapeutic radiosensitivity agent in the treatment of recurrent human glioma. Methods： A randomized, controlled experiment, was performed at the Department of Radiology Laboratory, the First Hospital Affiliated to Soochow University, between September 2004 and January 2006. Brain glioma SHG-44 cells were divided into three groups： SHG-44, SHG-44-10, and SHG-44-10 ＋ ACE cells groups. The SHG-44-10 cells group was irradiated with dose of 10 Gy by a linear accelerator （6 MVX）. It was passaged for 15 generations and cultured in RPMI-1640 culture media. Then SHG-44-10 ＋ ACE cells group was treated with ACE. Measures： Community re-double time, mean lethal dose （DO）, extrapolation number （N）, fraction surviving fraction irradiated by 2 Gy dose （SF2）, quasi-threshold dose （Dq）, and cell cycle. Results： The SF2 of the SHG-44, SHG-44-10, and SHG-44-10 ＋ ACE cells groups were 70.8%, 80.6% and 45.2%, respectively, with significance （P = 0.040）. The SHG-44-10 and SHG-44-10 ＋ ACE cells groups were irradiated with 8 Gy. After 12 hours, the G2/M ratio of the SHG-44-10 and SHG-44-10 ＋ ACE cells groups were indicating significantly higher ratio compared to pre-irradiated groups （P 〈 0.01）. After 24 hours, the G2/M ratio of the SHG-44-10 cells group decreased rapidly, while the ratio of the SHG-44-10 ＋ ACE cells group still maintained in high level. Conclusion： In the present study, Subtoxic dose of ACE increased the radiosensitivity of the progeny of irradiated human glioma cell. ACE may be an useful radiosensitivity agent in the treatment of recrudescent human malignant glioma.
文摘The alkali halide crystals exhibit significant TL （thermoluminescence） properties when exposed to ionizing radiation. The defects in crystals can be produced in high concentration by means of chemical impurities, radiation, mechanical work and others processes. This study is concerned with the TL properties of quaternary mixtures of alkali halide crystals when they are irradiated with beta and gamma-rays. The samples were made mixing KCI, KBr, RbCI, RbBr salts doped with divalent europium （Eu2＋）, by the Czochralski method sintering at 400 ~C during 6 hours in a N2 atmosphere. The samples were exposed to beta and gamma rays. We present the TL glow curves, demonstrating that the nature of the defects in the crystals can be produced by trapping states and recombination mechanisms. The highest temperature TL curves are the most interesting due to possible applications in dosimetry and optical energy storage.
