This study analyzes the status-quo of the proved oil/gas initially-in-place and its variation trend,the proved undeveloped oil/gas initially-in-place,and the remaining proved technically recoverable reserves(TRR)of oi...This study analyzes the status-quo of the proved oil/gas initially-in-place and its variation trend,the proved undeveloped oil/gas initially-in-place,and the remaining proved technically recoverable reserves(TRR)of oil/gas in China as of 2020 based on statistics.As shown by the results,the proved oil initially-in-place(OIIP),the proved undeveloped OIIP,and the remaining proved TRR of oil in China are mainly distributed in the Bohai Bay,Ordos and Songliao Basins,and those of free gas are mainly in the Ordos,Sichuan,and Tarim Basins.From 2011 to 2020,the largest increment in the proved OIIP,the proved undeveloped OIIP and the remaining proved TRR of oil occurred in the Ordos Basin,followed by the Bohai Bay Basin,while that in the proved gas initially-in-place(GIIP),the proved undeveloped GIIP,and the remaining proved TRR of gas occurred in the Ordos Basin,followed by the Sichuan Basin.In addition,a comprehensive analysis reveals that the petroliferous basins in China with the potential of reserve addition and production growth include the Ordos Basin,the Bohai Bay Basin,the Sichuan Basin,and the Tarim Basin.展开更多
It is reported that the work of re-structuring the frame of China nationalstandards system for processing food has been finished with the print and distribution of 2004-2005Development Plan of National Standards for F...It is reported that the work of re-structuring the frame of China nationalstandards system for processing food has been finished with the print and distribution of 2004-2005Development Plan of National Standards for Food (hereinafter Plan). According to the demand of thePlan, there will be great changes among the current national standards and the professionalstandards for processing food, in which some standards will be integrated with others, somestandards will be cancelled, and some will be brought into the new standards system after the reviewof standards. The standards after being changed and the new national standards and the professionalstandards that need to be developed compose the new standards system for processing food.展开更多
Low back pain is a common clinical disease that affects people's quality of life and causes a huge social and economic burden.Traditional Chinese medicine(TCM)has rich and valuable theory and practice in the treat...Low back pain is a common clinical disease that affects people's quality of life and causes a huge social and economic burden.Traditional Chinese medicine(TCM)has rich and valuable theory and practice in the treatment of low back pain.LI Shi-mao,a national TCM master,develops ancient meanings,combines new knowledge,treats low back pain with Pingmai differentiation(平脉辨证),performs comprehensive analysis of data gained by four diagnostic methods,centers on pulse diagnosis,and has achieved good efficacy.Here is an excerpt of 4 medical records,including XUE's No.4 Formula(薛氏4号方)in treating low back pain caused by dampness-heat invading meridians,Shentong Zhuyu Decoction(身痛逐瘀汤)in treating low back pain caused by blockade of blood stasis,Dabuyin Pills(大补阴丸)in treating low back pain caused by disturbance of ministerial fire,and Guizhi Shaoyao Zhimu Decoction(桂枝芍药知母汤)in treating low back pain due to blockade of cold and kidney deficiency,aiming at proving its principles and methods,observing its prescriptions and summing up its experience,so as to provide more reference for clinical treatment for low back pain.展开更多
OF the 517 large and small cities in the country, more than 300 have women mayors and vice mayors. These women play an important role in the construction and development of their cities. Ordinary Chinese people like t...OF the 517 large and small cities in the country, more than 300 have women mayors and vice mayors. These women play an important role in the construction and development of their cities. Ordinary Chinese people like to call their local officials "father-and- mother officials," but these展开更多
This paper presents an improvement of Herbrand's theorem.We propose a method for specifying a subuniverse of the Herbrand universe of a clause set S for each argument of predicate symbols and function symbols in S...This paper presents an improvement of Herbrand's theorem.We propose a method for specifying a subuniverse of the Herbrand universe of a clause set S for each argument of predicate symbols and function symbols in S.We prove that a clause set S is unsatisfiable if and only if there is a finite unsatisfiable set of ground instances of clauses of S that are derived by only instantiating each variable,which appears as an argument of predicate symbols or function symbols,in S over its corresponding argument's sub-universe of the Herbrand universe of S.Because such sub-universes are usually smaller(sometimes considerably)than the Herbrand universe of S,the number of ground instances may decrease considerably in many cases.We present an algorithm for automatically deriving the sub-universes for arguments in a given clause set,and show the correctness of our improvement.Moreover,we introduce an application of our approach to model generation theorem proving for non-range-restricted problems,show the range-restriction transformation algorithm based on our improvement and provide examples on benchmark problems to demonstrate the power of our approach.展开更多
文摘This study analyzes the status-quo of the proved oil/gas initially-in-place and its variation trend,the proved undeveloped oil/gas initially-in-place,and the remaining proved technically recoverable reserves(TRR)of oil/gas in China as of 2020 based on statistics.As shown by the results,the proved oil initially-in-place(OIIP),the proved undeveloped OIIP,and the remaining proved TRR of oil in China are mainly distributed in the Bohai Bay,Ordos and Songliao Basins,and those of free gas are mainly in the Ordos,Sichuan,and Tarim Basins.From 2011 to 2020,the largest increment in the proved OIIP,the proved undeveloped OIIP and the remaining proved TRR of oil occurred in the Ordos Basin,followed by the Bohai Bay Basin,while that in the proved gas initially-in-place(GIIP),the proved undeveloped GIIP,and the remaining proved TRR of gas occurred in the Ordos Basin,followed by the Sichuan Basin.In addition,a comprehensive analysis reveals that the petroliferous basins in China with the potential of reserve addition and production growth include the Ordos Basin,the Bohai Bay Basin,the Sichuan Basin,and the Tarim Basin.
文摘It is reported that the work of re-structuring the frame of China nationalstandards system for processing food has been finished with the print and distribution of 2004-2005Development Plan of National Standards for Food (hereinafter Plan). According to the demand of thePlan, there will be great changes among the current national standards and the professionalstandards for processing food, in which some standards will be integrated with others, somestandards will be cancelled, and some will be brought into the new standards system after the reviewof standards. The standards after being changed and the new national standards and the professionalstandards that need to be developed compose the new standards system for processing food.
文摘Low back pain is a common clinical disease that affects people's quality of life and causes a huge social and economic burden.Traditional Chinese medicine(TCM)has rich and valuable theory and practice in the treatment of low back pain.LI Shi-mao,a national TCM master,develops ancient meanings,combines new knowledge,treats low back pain with Pingmai differentiation(平脉辨证),performs comprehensive analysis of data gained by four diagnostic methods,centers on pulse diagnosis,and has achieved good efficacy.Here is an excerpt of 4 medical records,including XUE's No.4 Formula(薛氏4号方)in treating low back pain caused by dampness-heat invading meridians,Shentong Zhuyu Decoction(身痛逐瘀汤)in treating low back pain caused by blockade of blood stasis,Dabuyin Pills(大补阴丸)in treating low back pain caused by disturbance of ministerial fire,and Guizhi Shaoyao Zhimu Decoction(桂枝芍药知母汤)in treating low back pain due to blockade of cold and kidney deficiency,aiming at proving its principles and methods,observing its prescriptions and summing up its experience,so as to provide more reference for clinical treatment for low back pain.
文摘OF the 517 large and small cities in the country, more than 300 have women mayors and vice mayors. These women play an important role in the construction and development of their cities. Ordinary Chinese people like to call their local officials "father-and- mother officials," but these
基金This work was supported partially by TOYOAKI Scholarship Foundation,Japan.
文摘This paper presents an improvement of Herbrand's theorem.We propose a method for specifying a subuniverse of the Herbrand universe of a clause set S for each argument of predicate symbols and function symbols in S.We prove that a clause set S is unsatisfiable if and only if there is a finite unsatisfiable set of ground instances of clauses of S that are derived by only instantiating each variable,which appears as an argument of predicate symbols or function symbols,in S over its corresponding argument's sub-universe of the Herbrand universe of S.Because such sub-universes are usually smaller(sometimes considerably)than the Herbrand universe of S,the number of ground instances may decrease considerably in many cases.We present an algorithm for automatically deriving the sub-universes for arguments in a given clause set,and show the correctness of our improvement.Moreover,we introduce an application of our approach to model generation theorem proving for non-range-restricted problems,show the range-restriction transformation algorithm based on our improvement and provide examples on benchmark problems to demonstrate the power of our approach.
