This guidebook on e-science presents real-world examples of practices and applications, demonstrating how a range of computational technologies and tools can be employed to build essential infrastructures supporting next-generation scientific research. Each chapter provides introductory material on core concepts and principles, as well as descriptions and discussions of relevant e-science methodologies, architectures, tools, systems, services and frameworks. Features: includes contributions from an international selection of preeminent e-science experts and practitioners; discusses use of mainstream grid computing and peer-to-peer grid technology for “open” research and resource sharing in scientific research; presents varied methods for data management in data-intensive research; investigates issues of e-infrastructure interoperability, security, trust and privacy for collaborative research; examines workflow technology for the automation of scientific processes; describes applications of e-science.
Presents the successful synthesis of the representative and complex natural glycosides, as well as their respective origins, structural features, and biological activities.
Innovations in cloud and service-oriented architectures continue to attract attention by offering interesting opportunities for research in scientific communities. Although advancements such as computational power, storage, networking, and infrastructure have aided in making major progress in the implementation and realization of cloud-based systems, there are still significant concerns that need to be taken into account. Principles, Methodologies, and Service-Oriented Approaches for Cloud Computing aims to present insight into Cloud principles, examine associated methods and technologies, and investigate the use of service-oriented computing technologies. In addressing supporting infrastructure of the Cloud, including associated challenges and pressing issues, this reference source aims to present researchers, engineers, and IT professionals with various approaches in Cloud computing.
Liu Ruoxi looked up at the starry sky in the downtown area, and gave a deafening and hoarse roar, which attracted everyone's onlookers. Only to see her soul drifting out of the sky, her eyes glazed over and she sat down at the bus stop, which was the 101st interview failure after she lost her job. Try hard to get rid of the double-quality, drought-resistant and Philippine-resistant ideas, and try hard to get rid of them. I am afraid that I will consult Tao Wen's e-member, and I will blow and stir the donkey, and I will knock on it.
This book opens with the emergence and development of the discipline of aesthetics in western countries, specifically the history of Western Music Aesthetics, to study and delve into the development of Chinese Music Aesthetics. The book provides a clear timeline throughout the writing — from the history of Chinese Music Aesthetics, to the construction of a theoretical framework, and the intersections and conversations between Western and Chinese Music Aesthetics. This academic piece is fundamentally consistent with the developing field of Chinese philosophical and literary research.This book also discusses important music aesthetic categories of Confucianism, Taoism, Mohism, and metaphysics, and uses critical thinking to analyse the relationship between these categories and relevant schools of thought, reflecting the author's academic vision and thought process.
This volume examines the diversified and challenging experiences of Chinese international STEM doctoral students at Australian institutes of higher education, exploring how intersections between research, personal life, and social experiences can be negotiated to achieve academic success and personal transformation. By drawing on a range of qualitative and longitudinal research methods, the book foregrounds student narratives and utilizes a novel three-dimensional multi-world framework as an effective approach for understanding student experiences in a holistic way. It integrates Chinese philosophical perspectives and theories in the fields of educational psychology, international education, and doctoral education to interpret the nuances, complexity, and particularities of the cross-cultural STEM PhD experience, highlighting the importance of the supervisor–mentee relationship and the role of students’ cultural, social, and philosophical values in supporting their successful completion of the PhD degree. The analysis thus provides new insights into the ways in which these experiences vary across students, and might apply in other national contexts, and to non-STEM student cohorts. This book will be a valuable resource for researchers and academics engaged in cross-cultural education, the sociology of education, and international and comparative education. It will be of particular interest to those with a focus on international doctoral education and cultural Asian studies.
New information technologies have, to an unprecedented degree, come to reshape human relations, identities and communities both online and offline. As Internet narratives including online fiction, poetry and films reflect and represent ambivalent politics in China, the Chinese state wishes to enable the formidable soft power of this new medium whilst at the same time handling the ideological uncertainties it inevitably entails. This book investigates the ways in which class, gender, ethnicity and ethics are reconfigured, complicated and enriched by the closely intertwined online and offline realities in China. It combs through a wide range of theories on Internet culture, intellectual history, and literary, film, and cultural studies, and explores a variety of online cultural materials, including digitized spoofing, microblog fictions, micro-films, online fictions, web dramas, photographs, flash mobs, popular literature and films. These materials have played an important role in shaping the contemporary cultural scene, but have so far received little critical attention. Here, the authors demonstrate how Chinese Internet culture has provided a means to intervene in the otherwise monolithic narratives of identity and community. Offering an important contribution to the rapidly growing field of Internet studies, this book will also be of interest to students and scholars of Chinese culture, literary and film studies, media and communication studies, and Chinese society.
The sun is setting, and the sunset glow is all over the sky. An oval beam of sunlight slanted on the lower edge of the plaque of the "pet clinic". The beam moved down, and nearly one-third of the light entered the clinic. The semicircle beam shines on the left face of Platinum, reflecting a healthy ruddy color
Refining corpses to tame demons, sacrificing one's life for the fire, the flower girl Grass Demon, the remnants of the Mountains and Seas, the people of the Li Clan Nine Strange .... Behind the ordinary human world, there was an even more mysterious lost world! The hatred between the witchers and the demons that could not be eradicated for generations still lasts in this world today. In order to pursue his ancestry, the youth Chu Chi was involved in the search, roaming the cities and countryside, facing the countless demons and devils, with no place to escape.
Carbohydrate Chemistry in the Total Synthesis of Naturally Occurring Glycosides Revolutionize your manufacturing processes and more with this groundbreaking introduction Carbohydrates and complex glycosides are important classes of molecules. The ubiquitous glycosides are extremely diverse in structure and functions, and many of them are of pharmacological significance. Purification of a homogeneous glycoside from the nature sources, especially in an appreciable amount, is always difficult. Chemical synthesis provides a feasible access to the homogenous glycosides and their congeners. Carbohydrate Chemistry in the Total Synthesis of Naturally Occurring Glycosides presents about 10 families of naturally occurring glycoside natural products, including about 150 molecules that organic chemists have devoted a lot of effort toward their synthesis. In each example, the background of each natural glycoside, including its natural resources, its isolation process and its bioactivities have been described; the total synthesis of the natural glycoside is presented with special emphasis on the glycosylation reaction, the strategy on saccharides assembly, the protecting group manipulation, and the method for the synthesis of the rare saccharide units. Readers can clearly see the progress of total synthesis of naturally occurring glycosides, from early to current arts, from simple to complex molecules, and from tedious strategy to highly efficient and economical methodologies in this book. It will highly benefit the further developments in the total synthesis of naturally occurring glycosides and synthetic carbohydrate chemistry. Carbohydrate Chemistry in the Total Synthesis of Naturally Occurring Glycosides is ideal for Organic Chemists, Biochemists, Pharmaceutical and Medicinal Chemists, Natural Products Chemists, and Pharmaceutical Industry
There is a mountain named Dayan Mountain in Yicheng, and there is a Zhuangzi named Tengjiazhuang at the foot of Dayan Mountain. Every household in Zhuangzi is very close, just like a whole. On the periphery of Tengjiazhuang, there is a large wooden fence as high as nine feet
This literary study examines women-authored poetry and poetic criticism in late imperial China. It provides close readings of original texts to explore the poetic forms and devices women poets employed, to place their work into the context of the wider literary history of the period, and to analyze how they asserted their own agency to negotiate their literary, social, and political concerns. The author also investigates the interactions between women’s poetic creations and existing male scholars' discourses and probes how these interactions generated innovative self-identities and renovations in poetic forms and aesthetics.
Yang Jisheng’s The World Turned Upside Down is the definitive history of the Cultural Revolution, in withering and heartbreaking detail. As a major political event and a crucial turning point in the history of the People’s Republic of China, the Great Proletarian Cultural Revolution (1966–1976) marked the zenith as well as the nadir of Mao Zedong’s ultra-leftist politics. Reacting in part to the Soviet Union’s "revisionism" that he regarded as a threat to the future of socialism, Mao mobilized the masses in a battle against what he called "bourgeois" forces within the Chinese Communist Party (CCP). This ten-year-long class struggle on a massive scale devastated traditional Chinese culture as well as the nation’s economy. Following his groundbreaking and award-winning history of the Great Famine, Tombstone, Yang Jisheng here presents the only history of the Cultural Revolution by an independent scholar based in mainland China, and makes a crucial contribution to understanding those years' lasting influence today. The World Turned Upside Down puts every political incident, major and minor, of those ten years under extraordinary and withering scrutiny, and arrives in English at a moment when contemporary Chinese governance is leaning once more toward a highly centralized power structure and Mao-style cult of personality.
In Philosophical Horizons Yang draws freely from Confucian, Daoist, and Buddhist texts, alongside great Western philosophers to provide penetrating discussions of some of the most important issues in modern philosophy—especially those topics related to comparative and Chinese philosophy.
In a twinkling, the blood fog stopped spreading, the bone spears were all resisted by a thin film, and the blood and bones all retracted, turning into two blood energy balls with a size of two meters, and explosions kept ringing inside.
He had once obtained a high levelled medical knowledge, martial arts and a Special Ability which allowed him to see through the other party's thoughts. With this, the Young Master Han was able to roam the society, shopping malls, medicine courts, and government officials.
He had once obtained a high levelled medical knowledge, martial arts and a Special Ability which allowed him to see through the other party's thoughts. With this, the Young Master Han was able to roam the society, shopping malls, medicine courts, and government officials.
A poor laborer who couldn't even afford the rent was in a car accident. However, the heavens were blessed by the heavens. In this car accident, he unexpectedly obtained the Heaven and Earth Mysterious Yellow Limitless Body and became a prodigy. The city, the immortal world, the divine world, the void world, I will do whatever I want. After the protagonist obtained his superpower, he entered the cultivation world and became arrogant. So what if I laugh at my own knife pride? The law of all living things in the world can only be looked down upon by me! And to see how the powerful young man would rule the world...
China has been enjoying stellar economic growth for more than a quarter of a century. Yet the rapid growth amid market-oriented reforms has not been an unalloyed blessing. The OC China MiracleOCO has been accompanied by soaring income inequality and rising social tensions, over-taxing ChinaOCOs resource base and contributing to an environmental crisis. Despite substantial improvement in the standard of living and other social indicators, ChinaOCOs leaders have, in the aftermath of the Tiananmen crackdown, steadfastly held back the opening up of the political system. In this volume, contributors from the disciplines of economics, political science, and sociology examine how existing institutions, broadly defined, might have exacerbated tensions in China''s evolving economy, society and polity as well as how institutional developments have been introduced to deal with existing or emerging conflicts and tensions.
The two Taiwan Strait crises took place during a particularly tense period of the Cold War. Although each incident was relatively brief, their consequences loom large. Based on analyses of newly available documents from Beijing, Taipei, and Washington, Pang Yang Huei challenges conventional wisdom that claims Sino-US misperceptions of each other’s strategic concerns were critical in the 1950s. He underscores the fact that Washington, Taipei, and Beijing were actually aware of one another’s strategic intentions during the crises. He also demonstrates conclusively that both “crises” can be understood as a transformation from tacit communication to tacit accommodation. An important contribution of this study is a better understanding of the role of ritual, symbols, and gestures in international relations. While it is true that these two crises resulted in a stalemate, the fact that all parties were able to cultivate talks and negotiations brought relations, especially between the US and China, to a new and more stable level. Simply averting the threat of war was a major achievement. Strait Rituals is an important micro-history of a significant moment during the Cold War and a rich interpretation of the theoretical use of multiple points of view in writing history. It sets a new standard for understanding China’s place in the world. “Strait Rituals is a solidly detailed and thoroughly footnoted excursion into a critical stage of Cold War history. Dr. Pang’s exhaustive archival work sets a real standard in the amalgamation of different sources to reevaluate the Taiwan Strait crises in the 1950s, the repercussions of which can still be felt today.” —Hsiao-ting Lin, Hoover Institution, Stanford University “An excellent book for those interested in the Taiwan Strait crises in the context of the overall history of international affairs in the Asia-Pacific region. The book will prove to be of great value to those interested in the history of the region that is bound to increase in importance in the years to come.” —Akira Iriye, Harvard University “Dispassionate, balanced, rigorous in the presentation of facts, much drawn from Chinese archival sources, Pang Yang Huei’s work will be indispensable for anyone seeking to understand the issues surrounding this Cold War hangover that continues to trouble contemporary politics across the Taiwan Strait.” —Geoffrey C. Gunn, Journal of Contemporary Asia
The first book dedicated to the propagation of the Mass in late Imperial China unfolds dynamic interactions between this essential Catholic ritual and various cultural expressions in Chinese society, including traditional religion, architecture, art, literature, government, and theology.
The Chinese garden has been explored from a variety of angles. Much has been written about its structural features as well as its cosmological, religious, philosophical, moral, aesthetic, and economic underpinnings. This book deals with the poetic configurations of the private garden in cities from the ninth to the eleventh century in relation to the development of the private sphere in Chinese literati culture. It focuses on the ways in which the new values and rhetoric associated with gardens and the objects found in them helped shape the processes of self-cultivation and self-imaging among the literati, as they searched for alternatives to conventional values at a time when traditional political, moral, and aesthetic norms were increasingly judged inapplicable or inadequate. The garden was also an artifact and a locus for material culture and social competition. Focusing on a series of anecdotes about private transactions involving objects in gardens, the author dissects the intricate nexus between the exchange of poetry and the poetry of exchange. In tracing the development of the private urban garden through the writings of Bai Juyi, Su Shi, Sima Guang, and their contemporaries, the author argues that this private space figured increasingly as a place of disengagement for those out of political power and hence was increasingly invaded by political forces.
Traditional Chinese Medicine has played an important role in the treatment of COVID-19 in China. As the first batch of national Chinese medicine team in China, the authors shared their experience of treating severe COVID-19 cases with TCM at Jinyintan Hospital in Wuhan, the epicenter of the outbreak in China. Twenty severe cases have been selected and reported in this book. The medical history, inspection results and treatment rationales have been described in detail, adequately illustrated with color pictures of the tongues.The book is organized as follows: The etiology and pathogenesis from TCM perspectives are comprehensively discussed in the introduction. Part I includes various theories of different experts. Part II presents reports of the clinical cases one by one.
The tobacco area of the west Henan Province is located at the border of Henan, Shanxi, and Shaanxi provinces, which is a transition zone of subtropical and warm temperate zone with mild climate and sufficient light. This area is suitable for the growth of high-quality tobacco leaves. However, in recent years, drought in the fast- growing period occurs often in tobacco leaf production, leading to late growth, late maturity, and declining quality of tobacco leaves. This study has found that the rainfall was low before July and had a high inter-annual variability by the analysis of the rainfall from April to September 1986-2022 in Sanmenxia [Sanmenxia, a city in Henan, China] tobacco-growing area and from May to October 1986-2022 in Luoyang [Luoyang, a city in Henan, China] tobacco-growing area. It subsequently carries out a randomized block design in three key stages of tobacco growth, including the root extending stage, the fast-growing stage, and the mature stage, in Liangjiazhuang, Zhuyang Town, Sanmenxia. The randomized block design studies the effects of four drought-resistance technologies on Yunyan87’s agronomic character, root activity, the content of reactive oxygen species (ROS), key enzyme activity in carbon-nitrogen metabolism, relative expression of key genes in carbon-nitrogen metabolism, field growth phase, conventional chemical component of top-three leaves and. The four drought-resistance technologies include water-holding agents and antitranspirant (no water-holding agents, using water-holding agents alone, using antitranspirant alone, and using water-holding agents and antitranspirant at the same time), different amount of water for irrigation (no irrigation when it is raining, and respectively irrigating to 40%, 60%, 80% of soil water content in the fast growing stage), different nitrogen application rates and basal-topdressing nitrogen ratios (total local conventional nitrogen fertilization of 3.5kg per acre, total nitrogen fertilization of 3kg and 6:4 of basal-topdressing nitrogen ratio per acre, total nitrogen fertilization of 3kg and 7:3 of basal-topdressing nitrogen ratio per acre, total nitrogen fertilization of 4kg and 6:4 of basal-topdressing nitrogen ratio per acre, and total nitrogen fertilization of 4kg and 7:3 of basal-topdressing nitrogen ratio per acre), and different substances of chemical manipulation (no chemical manipulation, spraying jasmonic acid, spraying abscisic acid, and spraying ethephon). This study is conducive to exploring the appropriate dry-land cultivation techniques for different places. It also subsequently carries out a randomized block design in Wangcun, Xiaojie Town, Luoyang. The randomized block design studies the effects of four drought-resistance technologies on LY1306’s agronomic traits, root activity, the content of reactive oxygen species (ROS), key enzyme activity in carbon-nitrogen metabolism, relative expression of key genes in carbon-nitrogen metabolism, the field growing period, conventional chemical components of top-three leaves. The four drought-resistance technologies include ridge tillage to preserve soil moisture (ridging in spring, ridging in winter, autumn ploughing and winter ridging), appropriate transplanting methods (conventional strong seedling transplanting, small seedling transplanting under film, and well-cellar seedling transplanting), different nitrogen fertilization and basal-topdressing nitrogen ratios (total local conventional nitrogen fertilization of 3.5kg per acre, total nitrogen fertilization of 3kg and 6:4 of basal-topdressing nitrogen ratio per acre, total nitrogen fertilization of 3kg and 7:3 of basal-topdressing nitrogen ratio per acre, total nitrogen fertilization of 4kg and 6:4 of basal-topdressing nitrogen ratio per acre, and total nitrogen fertilization of 4kg and 7:3 of basal-topdressing nitrogen ratio per acre), and different chemical regulators (no chemical regulators, spraying jasmonic acid, spraying abscisic acid, and spraying ethephon). This study is conducive to exploring the appropriate dry-land cultivation techniques for different places. Major research results are as follows: (1) The variation of rainfall in the Sanmenxia tobacco-growing area from April to September from 1986 to 2022 shows a slow upward trend, and the rainfall of half of the years concerned of rainfall is lower than the average one. The variation coefficient of rainfall in September is the largest, followed by that in May, and the smallest is in July. According to the analysis of rainfall in each growing period of a flue-cured tobacco field, the variation of rainfall in the root stretching period, the fast growing period and the maturity period shows a slow downward trend respectively in general, and the relation is the root stretching period(262.23 mm)>the fast growing period(85.80mm)>the maturity period(81.84mm), which are inconsistent with the appropriate rainfall of tobacco-growing area field. The years of rainfall less than their own average rainfall accounts for 57%, 51% and 54% of all years, respectively. (2) In the study on the application of water-holding agent and antitranspirant, the application of water-holding agent and antitranspirant at the same time has the best effect on the growth and development of flue-cured tobacco, achieving the fastest fading of flue-cured tobacco and the most coordinated chemical components of flue-cured tobacco leaves. There is little difference between the application of a water-holding agent and the application of an antitranspirant, whose effect is just followed by the application of a water-holding agent and the antitranspirant at the same time. The agronomic traits of the group under treatment are better than those of the control group, and the agronomic traits of the application of a water-holding agent and antitranspirant at the same time are the best. 60 and 90 days after transplanting, the soil moisture content and root activity of groups under treatments are significantly higher than those of the control group and the highest soil moisture content and root activity are obtained when water-holding agent and antitranspirant are applied at the same time, followed by the application of water-holding agent alone. 120 days after transplanting, the root activity decreases significantly in groups under treatments, and the root activity of the application of a water-holding agent and antitranspirant at the same time is the lowest and its root aging is the deepest. The contents of O2- and H2O2 in groups under treatments are significantly higher than those in the control group, and the hydroxyl radical clearance in groups under treatments is significantly lower than those in the control group. Meanwhile, the accumulated active oxygen species in the application of a water-holding agent and antitranspirant at the same time is the highest. The nitrate reductase (NR) enzyme activity and glutamine synthetase (GS) enzyme activity in groups under treatments are significantly lower than those in the control group, and the expressions of NtNR and NtGS in groups under treatments are significantly lower than those in the control group. Meanwhile, the expressions of NtNR and NtGS genes in the application of water-holding agent and antitranspirant at the same time are 0.23 and 0.22 times of those in the control group. The sucrose phosphate synthetase (SS) enzyme activity of groups under treatments is significantly lower than that in the control group, and the gene expression of NtSPS and NtSS in groups under treatments are significantly lower than that in the control group. The gene expression of NtSPS and NtSS treated with water-holding agent and antitranspirant at the same time are 0.21 and 0.20 times that of the control group. The enzyme activity and gene expression related to carbon and nitrogen metabolism are the lowest when water-holding agent and antitranspirant are applied at the same time. The growing period of the field treated with water-holding agent and antitranspirant at the same time is 126 days, which is 6 days, 6 days, and 19 days shorter than that of the application of water-holding agent, that of the application of antitranspirant alone and the control group. Compared with the control group, the contents of total sugar, reducing sugar and potassium increased, while the contents of total nitrogen, nicotine, and chlorine decreased. At the same time, the contents of total sugar, reducing sugar, the ratio of potassium to chlorine and the nitrogen-nicotine ratio in groups under treatments are the highest, and the chemical components of tobacco leaves are the most coordinated under the above treatment. (3) On the study of different irrigation, flue-cured tobacco first enters the maturity period and has the shortest growing period under the condition of irrigation to 80% soil moisture content. Compared with the control group, 60 and 90 days after transplanting, the agronomic traits of groups under treatment are better, among which that of the irrigation to 80% of soil moisture content is the best, followed by 60%. The root soil moisture content and root activity in groups under treatments are significantly higher than those in the control group, and that of group with irrigation to 80% soil moisture content is the largest. 120 days after transplanting, the root activity of flue-cured tobacco is the lowest when irrigating to 80% of soil moisture content. The contents of O2•− and H2O2 in groups under treatments are significantly higher than those in the control group, and that of the group with irrigation to 80% of soil moisture content is the highest, followed by 60%. The hydroxyl radical scavenging rate in groups under treatments is significantly lower than that in the control group, and that of the group with irrigation to 80% of soil moisture content is the lowest, followed by 60%. The NR enzyme activity, GS enzyme activity, SPS enzyme activity and SS enzyme activity are significantly lower than those in the control group, and those of the group with irrigation to 80% of soil moisture content is the lowest, followed by 60%. The gene expression of NtNR, NtGS, NtSPS and NtSS in groups under treatments are significantly lower than those in the control group, and those of treatment with irrigation to 80% soil moisture content is the lowest, followed by 60%. The field growing period of treatment with irrigation to 80% soil moisture content is 126 days, which is shortened by 6 days, 6 days and 19 days compared with treatment with irrigation to 60% soil moisture content, irrigation to 40% soil moisture content and the control group. Compared with the control, the reducing sugar and total sugar of cured tobacco increase with the increase of irrigation amount, while the content of nicotine, chlorine and total nitrogen decrease with that. In the treatment with irrigation to 80% soil moisture content, the ratio of potassium to chlorine and nitrogen-nicotine ratio of flue-cured tobacco is the highest, and the chemical components of them are most coordinated, followed by 60%. (4) In the study of appropriate nitrogen fertilization and basal-topdressing ratio of flue-cured tobacco, 30 days and 60 days after transplanting, the agronomic traits of groups under treatments are significantly better than those of the control group, among which those of (T2) 3 kg total nitrogen and 7:3 basal-topdressing ratio is the best, followed by (T4) 4 kg total nitrogen and 7:3 basal-topdressing ratio, indicating that with the progress of field growing period, the total biomass of T2 is the largest, and the growth and development of flue-cured tobacco are the fastest. 90 days after transplanting, T2 still performs best in agronomic traits. 120 days after transplanting, the enzyme activities of carbon and nitrogen metabolism in groups under treatments are significantly lower than those in the control group, and the relative expression of NtNR, NtGS, NtSPS and NtSS genes in groups under treatments are significantly lower than those of the control group. the enzyme activities of carbon and nitrogen metabolism and the relative expression of NtNR, NtGS, NtSPS and NtSS genes in T2 are lowest, followed by T4. The contents of O2•− and H2O2 in groups under treatments are significantly higher than those in the control group, and the hydroxyl radical scavenging rate of T2 is the lowest, and the content of reactive oxygen species of T2 is the highest. This experiment shows that with the increase of basal-topdressing nitrogen ratio, the capacity of carbon sequestration, transformation and metabolism in flue-cured tobacco decrease, the nitrogen metabolism and nitrogen use efficiency decrease, the content of reactive oxygen species increases, and the maturity and senescence of flue-cured tobacco are deepened. With the increase of basal-topdressing nitrogen ratio, the contents of total sugar and reducing sugar in flue-cured tobacco increase, while the contents of nicotine and total nitrogen decrease. Among them, the ratio of potassium to chlorine and sugar alkali ratio of T2 are the best, where the chemical components of flue-cured tobacco are most coordinated. It is followed by T4. (5) In the study on spraying chemical regulators, spraying ethephon has the best effect of yellowing, and under this treatment, the growing period of the field is the shortest. It is followed by spraying jasmonic acid. 120 days after transplanting, the contents of chlorophyll a, chlorophyll b, carotenoid and total chlorophyll in groups under treatments are significantly lower than those in the control group. As spraying abscisic acid, the content of total chlorophyll is significantly higher than that of spraying jasmonic acid, which is significantly higher than that of spraying ethephon. Compared to the control group, the content of O2- content in groups under treatment are significantly higher, which are 1.31, 1.29 and 1.58 times of that in the control group, respectively. Compared to the control group, the content of H2O2 content in groups under treatments is significantly higher, which are 1.12, 1.19 and 1.47 times of that in the control group, respectively. The hydroxyl radical scavenging rate of groups under treatments is significantly lower than that of the control group, and that of the group with spraying ethephon is the lowest. The NR enzyme activity, GS enzyme activity, SPS enzyme activity and SS enzyme activity in groups under treatment are significantly lower than those in the control group, and the key enzyme activity of carbon and nitrogen metabolism in the group with spraying ethephon is the lowest. Compared to the control group, the expressions of NtNR, NtGS, NtSPS and NtSS genes in groups under treatments are significantly lower, which are, in treatment of spraying ethephon, 0.23, 0.21, 0.15 and 0.14 times of those in the control group. In the treatment of spraying ethephon, the growing period is the shortest (126 days), which is 6 days, 6 days and 19 days shorter than that of spraying abscisic acid, jasmonic acid and the control group. The content of total sugar in group of spraying ethephon is the highest (33.73%), an increase of 1.23% and 1.96% compared with that in the group of spraying jasmonic acid and abscisic acid respectively. The ratio of potassium to chlorine and sugar alkali ratio in the group of spraying ethephon are the best, which can better coordinate the chemical components of flue-cured tobacco. (6) The average rainfall in the Luoyang tobacco-growing area from May to October from 1986 to 2022 is 446.84 mm, showing a slow upward trend. Among all the years, the rainfall of 1997 is the lowest, and the rainfall of half of the years concerned of rainfall are lower than the average one. According to the analysis of rainfall in each growing period of a flue-cured tobacco field, the variation of rainfall in the root stretching period, the fast growing period and the maturity period shows a slow downward trend respectively in general, and the relation is the root stretching period(218.52mm)>the fast growing period(105.72mm)>the maturity period(89.49mm), which are inconsistent with the appropriate rainfall of tobacco-growing area field. The years of rainfall less than their own average rainfall accounts for 57%, 62% and 65% of all years, respectively. (7) In the study of ridge tillage to preserve soil moisture, ridging in winter, and autumn ploughing and winter ridging can significantly increase the soil moisture in the early growing period, improve the root activity of flue-cured tobacco during flue-cured tobacco’s growth and development, and reduce it in the maturity and aging period. With the maturity and aging of flue-cured tobacco, the capacity of nitrogen metabolism gradually decreases, and the capacity for carbon sequestration and transformation decreases. This study finds that in the late growing period of flue-cured tobacco, the key enzyme activity in carbon and nitrogen metabolism and the expression of related genes are significantly reduced by ridging in winter, and autumn ploughing and winter ridging. In addition, under these two treatments, the contents of nicotine, total nitrogen and chlorine are reduced, the contents of reducing sugar, total sugar and potassium are increased, the ratio of potassium to chlorine and sugar alkali ratio are more coordinated, and the quality of flue-cured tobacco is higher. The picking time of the upper leaves in the treatment of ridging in winter, and autumn ploughing and winter ridging is advanced by 11 days and 16 days respectively. (8) In the study of appropriate transplanting methods, small seedling transplanting under film and well-cellar seedling transplanting significantly reduce the root activity in the maturity period, which are 81.06% and 75.06% of CK, the name of the control group, respectively. As for well-cellar seedling transplanting, the key enzyme activity and the relative expression of carbon and nitrogen metabolism in flue-cured tobacco in the maturity period are significantly decreased, and the relationship is CK>T1>T2. The peroxidase activity in small seedling transplanting under film and well-cellar seedling transplanting are significantly lower than that in CK, 67.90% and 62.50% of that of CK respectively. The conventional chemical components of flue-cured tobacco leaves are more coordinated in well-cellar seedling transplanting, and the quality of tobacco leaves is better. At the same time, small seedling transplanting under film and well-cellar seedling transplanting can advance the picking time and shorten the growing period of flue-cured tobacco. (9) In the study of appropriate nitrogen fertilization and basal-topdressing ratio of flue-cured tobacco, (T4) 4 kg total nitrogen and 7:3 basal-topdressing ratio shows higher photosynthetic rate and excellent agronomic traits in the early periods, and can be picked earlier in the maturity period. In general, before and during the fast growing period, when the nitrogen fertilization is the same, the content of plastid pigment, the capacity for material accumulation, root activity and antioxidant activity of tobacco plants increase with the increase of basal-topdressing nitrogen ratio. However, when the basal-topdressing nitrogen ratio is the same, the content of plastids pigment increases with the increase of nitrogen fertilization. The trend is opposite to that in the fast growing period. The carbonitase activity and the relative expression of carbazitase genes in tobacco plants decrease with the increase of basal-topdressing nitrogen ratio. Compared with the control group, all treatments promote the ratio of potassium to chlorine and sugar alkali ratio in chemical components of flue-cured tobacco. T4 is the best, which is followed by T2. In T4, the growing period is the shortest, which is 140 days, 8 days, 3 days, 5 days, and 18 days shorter than that of T1, T2, T3 and the control group. (10) In the study on spraying chemical regulators, the contents of chlorophyll a, chlorophyll b, carotenoid and total chlorophyll in groups under treatments are significantly lower than those in the control group. 120 days after transplanting, the NR enzyme activity and GS enzyme activity in groups under treatments are significantly lower than those in the control group, and the effect of (T3) spraying ethephon is the most obvious. 120 days after transplanting, the SPS enzyme activity and SS enzyme activity in groups under treatments are significantly lower than those in the control group, and the effect of T3 is the best. 120 days after transplanting, the POD enzyme activity, SOD enzyme activity and CAT enzyme activity in groups under treatments are significantly lower than those in the control group. 120 days after transplanting, the relative expression of NtNCET1, NtPR1b, and NtEFE26 are promoted significantly. In general, the effect of T3 is the best. From the whole growing period of flue-cured tobacco fields, the growing period of T3 is the shortest, lasting 138 days, which is 3 days, 6 days and 21 days shorter than the growing period of spraying jasmonic acid, spraying abscisic acid and the control group. Compared with the control group, different treatments can promote the ratio of potassium to chlorine and sugar alkali ratio in chemical components of flue-cured tobacco, among which T3 is the best in all dictators. We are confident that people in the field of tobacco cultivation will derive valuable knowledge from reading this monograph.
On the balcony, there is a small round glass, and a tall and fat big teacup stands on the coffee table, full of moisture. Apart from this small chair, more places on the balcony are occupied by a Zhang Shen yellow nine-wrist rolled rattan rocking chair. This is a small but warm and leisurely private world.
Refining corpses to tame demons, sacrificing one's life for the fire, the flower girl Grass Demon, the remnants of the Mountains and Seas, the people of the Li Clan Nine Strange .... Behind the ordinary human world, there was an even more mysterious lost world! The hatred between the witchers and the demons that could not be eradicated for generations still lasts in this world today. In order to pursue his ancestry, the youth Chu Chi was involved in the search, roaming the cities and countryside, facing the countless demons and devils, with no place to escape.
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