As leading figures in English literature during the Neoclassical period,Alexander Pope and Jonathan Swift both showed great concern with the nature of man and his place in the Great Chain of Being.They both emphasized...As leading figures in English literature during the Neoclassical period,Alexander Pope and Jonathan Swift both showed great concern with the nature of man and his place in the Great Chain of Being.They both emphasized the irreplaceable role of reason in guiding man in his self-positioning in the universe,and pointed out the tragic,pathetic,or detestable fall man was vulnerable to in case of violating the law of nature.Pope attached more importance to setting right man' s position as against God and beast,while Swift showed more interest in the chain of being within the human society;Pope kept warning man against his pride and possible ruin as a result of his ambition,while Swift worried more about man' s degradation due to loss of reason.展开更多
A real-time channel flood forecast model was developed to simulate channel flow in plain rivers based on the dynamic wave theory. Taking into consideration channel shape differences along the channel, a roughness upda...A real-time channel flood forecast model was developed to simulate channel flow in plain rivers based on the dynamic wave theory. Taking into consideration channel shape differences along the channel, a roughness updating technique was developed using the Kalman filter method to update Manning's roughness coefficient at each time step of the calculation processes. Channel shapes were simplified as rectangles, triangles, and parabolas, and the relationships between hydraulic radius and water depth were developed for plain rivers. Based on the relationship between the Froude number and the inertia terms of the momentum equation in the Saint-Venant equations, the relationship between Manning's roughness coefficient and water depth was obtained. Using the channel of the Huaihe River from Wangjiaba to Lutaizi stations as a case, to test the performance and rationality of the present flood routing model, the original hydraulic model was compared with the developed model. Results show that the stage hydrographs calculated by the developed flood routing model with the updated Manning's roughness coefficient have a good agreement with the observed stage hydrographs. This model performs better than the original hydraulic model.展开更多
The ultimate need to account for the partial amount of energy deposited in target tissue/organ resulting from internal inhalation,ingestion,and injection intakes of radionuclides,defined by the Medical Internal Radiat...The ultimate need to account for the partial amount of energy deposited in target tissue/organ resulting from internal inhalation,ingestion,and injection intakes of radionuclides,defined by the Medical Internal Radiation Dosimetry committee as the specific absorbed fraction(SAF),has become obvious.In this study,we assessed the SAF values for self-and cross-absorption,which were calculated for a uniform distribution of monoenergetic photon and electron emitters with energies ranging from 15 keV to 3 MeV.The voxelized human phantom‘‘High-Definition Reference Korean-man’’(HDRK-man),which was implemented using the Monte Carlo simulation code GEANT4(version 10.1),was used for several combinations of target–source organs.The results were compared to those of the International Commission on Radiological Protection Reference(ICRP133)and Zubal phantoms.It was found that the SAF values of the three models have a similar trend.However,the SAF values for the HDRK-man phantom were higher than those of the other two models,with a relatively good agreement with those for the ICRP133 phantom(differences of 13.9±2.8 and 12.1±3.2 for photon and electron emitters,respectively).To analyze the differences in SAF values,we calculated the chord length distributions(CLDs)for selected target–source combinations.The parameters of organ mass(or volume)and CLDs,in addition to the adopted computational procedures,mainly cause such discrepancies.For realistic radionuclide emission spectra,an overall overestimation was observed when computing the S values for three radiopharmaceuticals studied(I-131,In-111,and Lu-177)and for liver–spleen intra-and inter-organ absorption when compared with published data.The new arrangement of S and SAF values is expected to add value for multidisciplinary research and clinical communities.展开更多
In this paper, we used ESR dating method to measure the accumulative dose of the fossil teeth samples, which are contemporaneous with the Peking-Man. The internal annual dose rate of samples are got by neutron activat...In this paper, we used ESR dating method to measure the accumulative dose of the fossil teeth samples, which are contemporaneous with the Peking-Man. The internal annual dose rate of samples are got by neutron activation analysis and the environmental annual dose rate by highly sensitive TL dosimeters to be embedded in cave deposits in the site. The results of ESR dating are corresponded with the dating results obtained by U-series, FT, TL and paleomagnetic stratigraphical methods on the 3rd, 4th, 7th and 10th layers. Calculation of using different models, the close-equilibrium model, the linear uranium accumulation model and radon loss-linear uranium accumulation model, for travertine, deer teeth and rhinoceros tooth, we obtained the age of the First Peking- Man in the nth layer is 578 ka and gave ages of other layers, from the 1st to the 13th layer in Peking- Man site.展开更多
The man-induced sediment disaster includes material erosion, transportation and accumulation by human activities. It possesses special attribute in sociology and disaster science. In accordance with human activities, ...The man-induced sediment disaster includes material erosion, transportation and accumulation by human activities. It possesses special attribute in sociology and disaster science. In accordance with human activities, geomorphologic location, behavior and particular, the man-induced sediment disaster can be divided into 4 types: the drainage network, slope and gully, channel and plain-estuary-coastline. Each type includes erosion, transportation, accumulation, complexity and cascading. Based on human activity, geomorphology, sediment mechanics and catastrophology, the man-induced sediment disaster is characterized as follows: (1) accelerating tendency with geographical zoning back-ground; (2) non-order characters by blind action without special technical training; (3) gradually and sharply changing with human environment vibration; and (4) complexity and non-linear figure, etc. One of the reasons leading to man-induced sediment disaster is human environment vibration.展开更多
Man's frustration is a dominant theme in Anderson's short stories.It is the condensation of his impressions of American life.His motives for exploring the problem include:to reveal the painful experience,feeli...Man's frustration is a dominant theme in Anderson's short stories.It is the condensation of his impressions of American life.His motives for exploring the problem include:to reveal the painful experience,feeling and situation of ordinary people during the economic,social and cultural transformations of America;to remind the reader of the choking effects of outworn conventional morality and the destructive effects of modern industrial materialism;to draw the reader's attention to the emotional life of the ordinary people;and to express his own views on and attitudes toward humanity and society.展开更多
Bacterial attachment is influenced by the cell surface, attachment media and other environmental factors. Bacterial community composition involved in biofilm formation in extremely high rainfall areas like Cherrapunje...Bacterial attachment is influenced by the cell surface, attachment media and other environmental factors. Bacterial community composition involved in biofilm formation in extremely high rainfall areas like Cherrapunjee has not been reported. The present study was undertaken to characterize bacteria involved in biofilm formation on different substrata in water bodies of Cherrapunjee, the highest rainfall receiving place on planet earth and to assess if the continuous rainfall has an effect on nature and colonization of biofilm bacteria. We developed the biofilm bacteria on stainless steel and glass surfaces immersed in water bodies of the study sites. Isolation of biofilm bacteria were performed on different culture media followed by estimation of protein and carbohydrate content of bacterial exopolysaccharides. 16S rRNA gene sequences were amplified for molecular characterization. The results showed that the biofilm bacterial diversity in water bodies of Cherrapunjee was influenced by substratum and was observed more in stainless steel than glass surface. Scanning electron microscopy images revealed that biofilm microstructure may represent a key determinant of biofilm growth and physiology of associated bacteria. The overall protein content of the extracted EPS of all the isolates were relatively higher than the carbohydrate content. Diverse bacteria proliferated on the substrata regardless of each other's presence, with more diverse bacteria colonizing the substrata on 7th day compared to 15th day of incubation. The biofilm bacteria compositions in the highest rainfall receiving habitat were not distinctly different from reports available, hence not unique from other water bodies.展开更多
By using solid-state nuclear detectors, the air radon concentrations at 87 underground working places were measured during spring, summer and winter, respectively. The survey covered 23 cities whose annual radon conce...By using solid-state nuclear detectors, the air radon concentrations at 87 underground working places were measured during spring, summer and winter, respectively. The survey covered 23 cities whose annual radon concentrations range from {14.9} to {246.4} Bq·m{-3} with an overall arithmetic mean value of {106.7} Bq·m{-3}. The average annual effective dose received by people working in these underground working places was {1.6} mSv, hence the lifetime fatality risk was {1.2}×10{-4}. Fujian Province had the highest radon level during the survey. It is better to reduce the radon concentration heavily in summer because of higher radon concentration than in winter.展开更多
Since the discovery of oceanic manganese nodules during the expedition of the British ocean-going ship Challenger from 1872 to 1876, research and development for seabed manganese nodules have never ceased owing to the...Since the discovery of oceanic manganese nodules during the expedition of the British ocean-going ship Challenger from 1872 to 1876, research and development for seabed manganese nodules have never ceased owing to the huge economic inducements. Manganese nodules are the black or dark brown, spherical or massive Mn-bearing ores, deposits of which are found on the sea bottom. The nodules are a mixture of silicate and insoluble potassium permanganates (also with sub-Ti, Fe and Na permanganates) that contain more than 30 kinds of metallic elements, among which those of greatest economic interest are Mn (27-30%), Ni(1.25-1.5%), Cu(1- 1.4%), Co(0.2- 0.25 %), Fe, Si, and AI, with minor amounts of Ca, Na, K, Ti, B, H and O.展开更多
Australian women writers have taken active roles in the literary field under the influence of the Feminist Movement around the world since the latter half of the 20 th century. Kate Grenville rose to fame for her earl...Australian women writers have taken active roles in the literary field under the influence of the Feminist Movement around the world since the latter half of the 20 th century. Kate Grenville rose to fame for her early novel Lillian's Story representative of radical feminism. Ten years later in 1994,on reflection,she wrote Dark Places as a complementary work in the point viewof the very man,father and rapist,Albion,who appeared in the earlier novel. By reading the dark places,the inner heart of a patriarchal man and the undercurrent of misogyny in Albion's social world,the author sympathizes with and seeks to understand the inner nature of men,indicating her change in vision from initial radicalism to post- feminism which advocates understanding and harmony between men and women.展开更多
When Lou Zongquan became a millionaire and thought his money was more than enough to sustain a kungfu school over 10 years ago, the engineer-turned-businessman decided it was time to feed his martial ambition. In less...When Lou Zongquan became a millionaire and thought his money was more than enough to sustain a kungfu school over 10 years ago, the engineer-turned-businessman decided it was time to feed his martial ambition. In less than a year, however, the kungfu fan found that his dream would lead him to running an orphanage.展开更多
Zhao Guoxin has the future all mapped out.First,he intends to turn the center into a full-time industry as a Sino-foreign joint venture com-plete with two pharmaceutical plants and a 200-bed hospital for coronary hear...Zhao Guoxin has the future all mapped out.First,he intends to turn the center into a full-time industry as a Sino-foreign joint venture com-plete with two pharmaceutical plants and a 200-bed hospital for coronary heart patients.This,he thinks,should take about three years.展开更多
There is no-one in the field of weather broadcasting in Tibet who does notknow about Gyila: Top 10 Youth of China, China’s Outstanding Scientist, winner of the 5th China Youth Scientific Progress, and winner of first...There is no-one in the field of weather broadcasting in Tibet who does notknow about Gyila: Top 10 Youth of China, China’s Outstanding Scientist, winner of the 5th China Youth Scientific Progress, and winner of first May 4th Medal for Tibetan Youths.What people tell of him are legendary stories. Actually, he is an ordinary man who has cut a brilliant figure in work.展开更多
文摘As leading figures in English literature during the Neoclassical period,Alexander Pope and Jonathan Swift both showed great concern with the nature of man and his place in the Great Chain of Being.They both emphasized the irreplaceable role of reason in guiding man in his self-positioning in the universe,and pointed out the tragic,pathetic,or detestable fall man was vulnerable to in case of violating the law of nature.Pope attached more importance to setting right man' s position as against God and beast,while Swift showed more interest in the chain of being within the human society;Pope kept warning man against his pride and possible ruin as a result of his ambition,while Swift worried more about man' s degradation due to loss of reason.
基金supported by the Special Fund for Public Welfare (Meteorology) of China (Grants No. GYHY201006037 and GYHY200906007)
文摘A real-time channel flood forecast model was developed to simulate channel flow in plain rivers based on the dynamic wave theory. Taking into consideration channel shape differences along the channel, a roughness updating technique was developed using the Kalman filter method to update Manning's roughness coefficient at each time step of the calculation processes. Channel shapes were simplified as rectangles, triangles, and parabolas, and the relationships between hydraulic radius and water depth were developed for plain rivers. Based on the relationship between the Froude number and the inertia terms of the momentum equation in the Saint-Venant equations, the relationship between Manning's roughness coefficient and water depth was obtained. Using the channel of the Huaihe River from Wangjiaba to Lutaizi stations as a case, to test the performance and rationality of the present flood routing model, the original hydraulic model was compared with the developed model. Results show that the stage hydrographs calculated by the developed flood routing model with the updated Manning's roughness coefficient have a good agreement with the observed stage hydrographs. This model performs better than the original hydraulic model.
文摘The ultimate need to account for the partial amount of energy deposited in target tissue/organ resulting from internal inhalation,ingestion,and injection intakes of radionuclides,defined by the Medical Internal Radiation Dosimetry committee as the specific absorbed fraction(SAF),has become obvious.In this study,we assessed the SAF values for self-and cross-absorption,which were calculated for a uniform distribution of monoenergetic photon and electron emitters with energies ranging from 15 keV to 3 MeV.The voxelized human phantom‘‘High-Definition Reference Korean-man’’(HDRK-man),which was implemented using the Monte Carlo simulation code GEANT4(version 10.1),was used for several combinations of target–source organs.The results were compared to those of the International Commission on Radiological Protection Reference(ICRP133)and Zubal phantoms.It was found that the SAF values of the three models have a similar trend.However,the SAF values for the HDRK-man phantom were higher than those of the other two models,with a relatively good agreement with those for the ICRP133 phantom(differences of 13.9±2.8 and 12.1±3.2 for photon and electron emitters,respectively).To analyze the differences in SAF values,we calculated the chord length distributions(CLDs)for selected target–source combinations.The parameters of organ mass(or volume)and CLDs,in addition to the adopted computational procedures,mainly cause such discrepancies.For realistic radionuclide emission spectra,an overall overestimation was observed when computing the S values for three radiopharmaceuticals studied(I-131,In-111,and Lu-177)and for liver–spleen intra-and inter-organ absorption when compared with published data.The new arrangement of S and SAF values is expected to add value for multidisciplinary research and clinical communities.
文摘In this paper, we used ESR dating method to measure the accumulative dose of the fossil teeth samples, which are contemporaneous with the Peking-Man. The internal annual dose rate of samples are got by neutron activation analysis and the environmental annual dose rate by highly sensitive TL dosimeters to be embedded in cave deposits in the site. The results of ESR dating are corresponded with the dating results obtained by U-series, FT, TL and paleomagnetic stratigraphical methods on the 3rd, 4th, 7th and 10th layers. Calculation of using different models, the close-equilibrium model, the linear uranium accumulation model and radon loss-linear uranium accumulation model, for travertine, deer teeth and rhinoceros tooth, we obtained the age of the First Peking- Man in the nth layer is 578 ka and gave ages of other layers, from the 1st to the 13th layer in Peking- Man site.
基金Joint project by National Natural Science Foundation of China and the Ministry of Water Resources,No.59890200National Natural Science Foundation of China, No.48870008
文摘The man-induced sediment disaster includes material erosion, transportation and accumulation by human activities. It possesses special attribute in sociology and disaster science. In accordance with human activities, geomorphologic location, behavior and particular, the man-induced sediment disaster can be divided into 4 types: the drainage network, slope and gully, channel and plain-estuary-coastline. Each type includes erosion, transportation, accumulation, complexity and cascading. Based on human activity, geomorphology, sediment mechanics and catastrophology, the man-induced sediment disaster is characterized as follows: (1) accelerating tendency with geographical zoning back-ground; (2) non-order characters by blind action without special technical training; (3) gradually and sharply changing with human environment vibration; and (4) complexity and non-linear figure, etc. One of the reasons leading to man-induced sediment disaster is human environment vibration.
文摘Man's frustration is a dominant theme in Anderson's short stories.It is the condensation of his impressions of American life.His motives for exploring the problem include:to reveal the painful experience,feeling and situation of ordinary people during the economic,social and cultural transformations of America;to remind the reader of the choking effects of outworn conventional morality and the destructive effects of modern industrial materialism;to draw the reader's attention to the emotional life of the ordinary people;and to express his own views on and attitudes toward humanity and society.
文摘Bacterial attachment is influenced by the cell surface, attachment media and other environmental factors. Bacterial community composition involved in biofilm formation in extremely high rainfall areas like Cherrapunjee has not been reported. The present study was undertaken to characterize bacteria involved in biofilm formation on different substrata in water bodies of Cherrapunjee, the highest rainfall receiving place on planet earth and to assess if the continuous rainfall has an effect on nature and colonization of biofilm bacteria. We developed the biofilm bacteria on stainless steel and glass surfaces immersed in water bodies of the study sites. Isolation of biofilm bacteria were performed on different culture media followed by estimation of protein and carbohydrate content of bacterial exopolysaccharides. 16S rRNA gene sequences were amplified for molecular characterization. The results showed that the biofilm bacterial diversity in water bodies of Cherrapunjee was influenced by substratum and was observed more in stainless steel than glass surface. Scanning electron microscopy images revealed that biofilm microstructure may represent a key determinant of biofilm growth and physiology of associated bacteria. The overall protein content of the extracted EPS of all the isolates were relatively higher than the carbohydrate content. Diverse bacteria proliferated on the substrata regardless of each other's presence, with more diverse bacteria colonizing the substrata on 7th day compared to 15th day of incubation. The biofilm bacteria compositions in the highest rainfall receiving habitat were not distinctly different from reports available, hence not unique from other water bodies.
文摘By using solid-state nuclear detectors, the air radon concentrations at 87 underground working places were measured during spring, summer and winter, respectively. The survey covered 23 cities whose annual radon concentrations range from {14.9} to {246.4} Bq·m{-3} with an overall arithmetic mean value of {106.7} Bq·m{-3}. The average annual effective dose received by people working in these underground working places was {1.6} mSv, hence the lifetime fatality risk was {1.2}×10{-4}. Fujian Province had the highest radon level during the survey. It is better to reduce the radon concentration heavily in summer because of higher radon concentration than in winter.
文摘Since the discovery of oceanic manganese nodules during the expedition of the British ocean-going ship Challenger from 1872 to 1876, research and development for seabed manganese nodules have never ceased owing to the huge economic inducements. Manganese nodules are the black or dark brown, spherical or massive Mn-bearing ores, deposits of which are found on the sea bottom. The nodules are a mixture of silicate and insoluble potassium permanganates (also with sub-Ti, Fe and Na permanganates) that contain more than 30 kinds of metallic elements, among which those of greatest economic interest are Mn (27-30%), Ni(1.25-1.5%), Cu(1- 1.4%), Co(0.2- 0.25 %), Fe, Si, and AI, with minor amounts of Ca, Na, K, Ti, B, H and O.
基金Humanities and Social Sciences Research Planning Fund Key Project of Anhui Provinceunder Grant No.:SK2014A364namely“The Self in a Postmodernist Context:A Critical Study of Kate Grenville’s Fiction”
文摘Australian women writers have taken active roles in the literary field under the influence of the Feminist Movement around the world since the latter half of the 20 th century. Kate Grenville rose to fame for her early novel Lillian's Story representative of radical feminism. Ten years later in 1994,on reflection,she wrote Dark Places as a complementary work in the point viewof the very man,father and rapist,Albion,who appeared in the earlier novel. By reading the dark places,the inner heart of a patriarchal man and the undercurrent of misogyny in Albion's social world,the author sympathizes with and seeks to understand the inner nature of men,indicating her change in vision from initial radicalism to post- feminism which advocates understanding and harmony between men and women.
文摘When Lou Zongquan became a millionaire and thought his money was more than enough to sustain a kungfu school over 10 years ago, the engineer-turned-businessman decided it was time to feed his martial ambition. In less than a year, however, the kungfu fan found that his dream would lead him to running an orphanage.
文摘Zhao Guoxin has the future all mapped out.First,he intends to turn the center into a full-time industry as a Sino-foreign joint venture com-plete with two pharmaceutical plants and a 200-bed hospital for coronary heart patients.This,he thinks,should take about three years.
文摘There is no-one in the field of weather broadcasting in Tibet who does notknow about Gyila: Top 10 Youth of China, China’s Outstanding Scientist, winner of the 5th China Youth Scientific Progress, and winner of first May 4th Medal for Tibetan Youths.What people tell of him are legendary stories. Actually, he is an ordinary man who has cut a brilliant figure in work.