In 2024,China’s natural gas industry continues to show a positive trend.In the field of exploration and development,a large ultra-deep water and ultra-shallow gas field has been discovered,further enhancing the uniqu...In 2024,China’s natural gas industry continues to show a positive trend.In the field of exploration and development,a large ultra-deep water and ultra-shallow gas field has been discovered,further enhancing the unique deep-water complex oil and gas exploration and development technology system independently developed by China.Remarkable achievements have been made in offshore development,including the commissioning of Deep Sea No.1 PhaseⅡ,the first deep-water high-pressure gas field.Additionally,the establishment of the Daji gas field,the first onshore coal rock gas field with an oil and gas equivalent of one million tons,provides strong support for domestic natural gas production.In terms of infrastructure construction,the entire China-Russia east-route natural gas pipeline has been completed,the Xinjiang section of the West Fourth Line is now operational,the Southern Xinjiang Gas Pipeline project has been fully launched,and five new or expanded LNG receiving terminals have been added,increasing the annual receiving capacity by 21.10 million tons.In the field of related equipment manufacturing,China successfully delivered the first vessel of its largest LNG transportation ship construction project,the Greenergy Ocean,and successfully launched its first large-scale floating natural gas liquefaction facility,the NGUYA FLNG.In terms of market supply and demand,natural gas consumption exceeded 400 billion m^(3) for the first time,with apparent consumption reaching 412.43 billion m^(3),an increase of 24.9 billion m^(3) year-on-year,reflecting a growth rate of 6.4%.The total supply reached 424.3 billion m^(3),an increase of 27.5 billion m^(3) year-on-year,with a growth rate of 7.5%.In terms of regulatory policy,China has once again issued a natural gas utilization policy aimed at further guiding the orderly and efficient development of the natural gas market.展开更多
As a novel experimental animal model, tree shrews have received increasing attention in recent years. Despite this, little is known in regards to the time phases of their embryonic development. In this study, surveill...As a novel experimental animal model, tree shrews have received increasing attention in recent years. Despite this, little is known in regards to the time phases of their embryonic development. In this study, surveillance systems were used to record the behavior and timing of copulations; embryos at different post-copulation stages were collected and cultured in vitro; and the developmental characteristics of both early-stage and in vitro cultured embryos were determined. A total of 163 females were collected following effective copulation, and 150 were used in either unilateral or bilateral oviduct embryo collections, with 307 embryos from 111 females obtained （conception rate=74%）. Among them, 237 embryos were collected from 78 females, bilaterally, i.e., the average embryo number per female was 3.04; 172 fertilized eggs collected from 55 females, bilaterally, were cultured for 24-108 h in vitro for developmental observations; finally, 65 embryos from 23 bilateral cases and 70 embryos from 33 unilateral cases were used in embryo transplantation.展开更多
文摘In 2024,China’s natural gas industry continues to show a positive trend.In the field of exploration and development,a large ultra-deep water and ultra-shallow gas field has been discovered,further enhancing the unique deep-water complex oil and gas exploration and development technology system independently developed by China.Remarkable achievements have been made in offshore development,including the commissioning of Deep Sea No.1 PhaseⅡ,the first deep-water high-pressure gas field.Additionally,the establishment of the Daji gas field,the first onshore coal rock gas field with an oil and gas equivalent of one million tons,provides strong support for domestic natural gas production.In terms of infrastructure construction,the entire China-Russia east-route natural gas pipeline has been completed,the Xinjiang section of the West Fourth Line is now operational,the Southern Xinjiang Gas Pipeline project has been fully launched,and five new or expanded LNG receiving terminals have been added,increasing the annual receiving capacity by 21.10 million tons.In the field of related equipment manufacturing,China successfully delivered the first vessel of its largest LNG transportation ship construction project,the Greenergy Ocean,and successfully launched its first large-scale floating natural gas liquefaction facility,the NGUYA FLNG.In terms of market supply and demand,natural gas consumption exceeded 400 billion m^(3) for the first time,with apparent consumption reaching 412.43 billion m^(3),an increase of 24.9 billion m^(3) year-on-year,reflecting a growth rate of 6.4%.The total supply reached 424.3 billion m^(3),an increase of 27.5 billion m^(3) year-on-year,with a growth rate of 7.5%.In terms of regulatory policy,China has once again issued a natural gas utilization policy aimed at further guiding the orderly and efficient development of the natural gas market.
基金supported by the Breakthrough Project of Strategic Priority Program of the Chinese Academy of Sciences(XDB13000000)
文摘As a novel experimental animal model, tree shrews have received increasing attention in recent years. Despite this, little is known in regards to the time phases of their embryonic development. In this study, surveillance systems were used to record the behavior and timing of copulations; embryos at different post-copulation stages were collected and cultured in vitro; and the developmental characteristics of both early-stage and in vitro cultured embryos were determined. A total of 163 females were collected following effective copulation, and 150 were used in either unilateral or bilateral oviduct embryo collections, with 307 embryos from 111 females obtained （conception rate=74%）. Among them, 237 embryos were collected from 78 females, bilaterally, i.e., the average embryo number per female was 3.04; 172 fertilized eggs collected from 55 females, bilaterally, were cultured for 24-108 h in vitro for developmental observations; finally, 65 embryos from 23 bilateral cases and 70 embryos from 33 unilateral cases were used in embryo transplantation.
