Using smashing ridging tillage machine and smashing ridging technology invented by the authors, transformation test of saline-alkali land by smashing ridging was conducted respectively in Xinjiang and Shaanxi during 2...Using smashing ridging tillage machine and smashing ridging technology invented by the authors, transformation test of saline-alkali land by smashing ridging was conducted respectively in Xinjiang and Shaanxi during 2015 -2016. The results showed, in severe saline-alkali soil of Xin-jiang ,after growing cotton by smashing ridging, total salt in soil decreased by 31.31 %, cotton production increased by 48.80%, and salinity level declined from severe to moderate; in mild saline-alkali soil of Shaanxi, after growing summer corn by smashing ridging, total salt in soil decreased by 42.37%, corn yield increased by 34.83%, salinity degree changed from mild desalination to normal farmland ; in Ningxia, Inner Mongolia 7 Gansu ,Jilin, Henan, Hebei, and so on, smashing ridging tillage practice in different types of saline-alkali land was conducted ; according to the salt reduction and yield increase effects of saline-alkali land after smashing ridging, the development prospect of smashing ridging technique in improvement and application of saline-alkali land was proposed.展开更多
Based on the background of modern development, if each enterprise wants to achieve the sustainable development goal as soon as possible, it must emphasize the importance of management innovation. Through a series of m...Based on the background of modern development, if each enterprise wants to achieve the sustainable development goal as soon as possible, it must emphasize the importance of management innovation. Through a series of modern management methods, it can ensure that the enterprise can obtain the maximum economic benefits with the least investment in economic costs and steadily occupy an important share of the market. In this regard, the article focuses on several specific measures for management innovation to promote cost reduction and efficiency improvement of enterprises, hoping to provide some reference for relevant people.展开更多
In the context of the prevalent winter air quality issues in China marked by declining PM_(2.5)and rising O_(3),this study employed amodified WRF-Chem model to examine the aerosol radiation interaction(ARI),heterogene...In the context of the prevalent winter air quality issues in China marked by declining PM_(2.5)and rising O_(3),this study employed amodified WRF-Chem model to examine the aerosol radiation interaction(ARI),heterogeneous chemistry(AHC),and their combined impact(ALL)on the variations in O_(3)and PM_(2.5)during the 2014–2020 in eastern China.Our analysis confirmed that ARI curtailed O_(3)while elevating PM_(2.5).AHC reduced O_(3)through heterogeneous absorption of NOx and hydroxideswhile notably fostering fine-grained sulfate,resulting in a PM_(2.5)increase.Emission reductions mitigated the inhibitory impact of ARI on meteorological fields and photolysis rates.Emission reduction individually without aerosol feedback led to a 5.43 ppb O_(3)increase and a 22.89μg/m^(3)PM_(2.5)decrease.ARI and AHC amplified the emission-reduction-induced(ERI)O_(3)rise by 1.83 and 0.31 ppb,respectively.The response of ARI to emission diminution brought about a modest PM_(2.5)increase of 0.31μg/m^(3).Conversely,AHC,acting as the primary contributor,caused a noteworthy PM_(2.5)decrease of 4.60μg/m^(3).As efforts concentrate on reducing PM_(2.5),the promotion of ARI on PM_(2.5)counterbalanced the efficacy of emission reduction and the AHC-induced strengthening of PM_(2.5)decrease.The ALL magnified the ERI O_(3)increase by 38.9%and PM_(2.5)decrease by 18.7%.Sensitivity experiments with different degrees of emission reduction demonstrated a consistent linear relationship between the ALL-induced enhancement of O_(3)increase and PM_(2.5)decrease to the ERI PM_(2.5)decline.Our investigation revealed the complex connection between emissions and aerosol feedback in influencing air quality.展开更多
In junior high school English homework, how to do a good job in the practice of "reducing burden and increasing efficiency" has become the primary problem teachers have to face. Based on junior high school E...In junior high school English homework, how to do a good job in the practice of "reducing burden and increasing efficiency" has become the primary problem teachers have to face. Based on junior high school English subject, this paper first expounds the necessity of "reducing burden and increasing efficiency" in junior high school English homework, and then discusses the practical strategies of "reducing burden and increasing efficiency" in junior high school English homework.展开更多
With the continuous deepening of the new curriculum reform, China's education and teaching has undergone tremendous changes, especially in the introduction of the double reduction policy, making the voice of "...With the continuous deepening of the new curriculum reform, China's education and teaching has undergone tremendous changes, especially in the introduction of the double reduction policy, making the voice of "reducing the burden and increasing the efficiency" higher and higher. As an important part of the junior high school teaching system, this point is no exception. Based on this, how to realize the "burden reduction and increase efficiency" of junior high school Chinese teaching has become an urgent problem for the majority of teaching workers at the present stage. The following closely follow the above topics, first analyze the significance of "reducing burden and increasing efficiency" of junior high school Chinese teaching under the new curriculum reform, and then explore the strategy of "reducing burden and increasing efficiency" of junior high school Chinese teaching, hoping to provide favorable reference.展开更多
基金Supported by National Science and Technology Support Program(2014BAD06B05)
文摘Using smashing ridging tillage machine and smashing ridging technology invented by the authors, transformation test of saline-alkali land by smashing ridging was conducted respectively in Xinjiang and Shaanxi during 2015 -2016. The results showed, in severe saline-alkali soil of Xin-jiang ,after growing cotton by smashing ridging, total salt in soil decreased by 31.31 %, cotton production increased by 48.80%, and salinity level declined from severe to moderate; in mild saline-alkali soil of Shaanxi, after growing summer corn by smashing ridging, total salt in soil decreased by 42.37%, corn yield increased by 34.83%, salinity degree changed from mild desalination to normal farmland ; in Ningxia, Inner Mongolia 7 Gansu ,Jilin, Henan, Hebei, and so on, smashing ridging tillage practice in different types of saline-alkali land was conducted ; according to the salt reduction and yield increase effects of saline-alkali land after smashing ridging, the development prospect of smashing ridging technique in improvement and application of saline-alkali land was proposed.
文摘Based on the background of modern development, if each enterprise wants to achieve the sustainable development goal as soon as possible, it must emphasize the importance of management innovation. Through a series of modern management methods, it can ensure that the enterprise can obtain the maximum economic benefits with the least investment in economic costs and steadily occupy an important share of the market. In this regard, the article focuses on several specific measures for management innovation to promote cost reduction and efficiency improvement of enterprises, hoping to provide some reference for relevant people.
基金supported by the National Natural Science Foundation of China(No.42077192)the National Key Basic Research&Development Program of China(No.2020YFA0607802).
文摘In the context of the prevalent winter air quality issues in China marked by declining PM_(2.5)and rising O_(3),this study employed amodified WRF-Chem model to examine the aerosol radiation interaction(ARI),heterogeneous chemistry(AHC),and their combined impact(ALL)on the variations in O_(3)and PM_(2.5)during the 2014–2020 in eastern China.Our analysis confirmed that ARI curtailed O_(3)while elevating PM_(2.5).AHC reduced O_(3)through heterogeneous absorption of NOx and hydroxideswhile notably fostering fine-grained sulfate,resulting in a PM_(2.5)increase.Emission reductions mitigated the inhibitory impact of ARI on meteorological fields and photolysis rates.Emission reduction individually without aerosol feedback led to a 5.43 ppb O_(3)increase and a 22.89μg/m^(3)PM_(2.5)decrease.ARI and AHC amplified the emission-reduction-induced(ERI)O_(3)rise by 1.83 and 0.31 ppb,respectively.The response of ARI to emission diminution brought about a modest PM_(2.5)increase of 0.31μg/m^(3).Conversely,AHC,acting as the primary contributor,caused a noteworthy PM_(2.5)decrease of 4.60μg/m^(3).As efforts concentrate on reducing PM_(2.5),the promotion of ARI on PM_(2.5)counterbalanced the efficacy of emission reduction and the AHC-induced strengthening of PM_(2.5)decrease.The ALL magnified the ERI O_(3)increase by 38.9%and PM_(2.5)decrease by 18.7%.Sensitivity experiments with different degrees of emission reduction demonstrated a consistent linear relationship between the ALL-induced enhancement of O_(3)increase and PM_(2.5)decrease to the ERI PM_(2.5)decline.Our investigation revealed the complex connection between emissions and aerosol feedback in influencing air quality.
文摘In junior high school English homework, how to do a good job in the practice of "reducing burden and increasing efficiency" has become the primary problem teachers have to face. Based on junior high school English subject, this paper first expounds the necessity of "reducing burden and increasing efficiency" in junior high school English homework, and then discusses the practical strategies of "reducing burden and increasing efficiency" in junior high school English homework.
文摘With the continuous deepening of the new curriculum reform, China's education and teaching has undergone tremendous changes, especially in the introduction of the double reduction policy, making the voice of "reducing the burden and increasing the efficiency" higher and higher. As an important part of the junior high school teaching system, this point is no exception. Based on this, how to realize the "burden reduction and increase efficiency" of junior high school Chinese teaching has become an urgent problem for the majority of teaching workers at the present stage. The following closely follow the above topics, first analyze the significance of "reducing burden and increasing efficiency" of junior high school Chinese teaching under the new curriculum reform, and then explore the strategy of "reducing burden and increasing efficiency" of junior high school Chinese teaching, hoping to provide favorable reference.
