Gas source of the Middle Jurassic Shaximiao Formation in the Zhongjiang large gas field of Western Sichuan Depression:Constraints from geochemical characteristics of light hydrocarbons

The Zhongjiang gas field is a typical large gas field in terrigenous strata of the Western Sichuan Depression.It remains debatable which member of the Upper Triassic Xujiahe Formation served as the source rocks and how significant the member contributed to the gas accumulations in the Zhongjiang gas field.In this study,we analyzed the essential characteristics of the Lower Jurassic source rocks and the geochemical features of light hydrocarbons in natural gas from the 2nd(T3χ^(2))and 4th members(T3χ^(4))of the Upper Triassic Xujiahe Formation(T3χ),as well as the Middle Jurassic Shaximiao(J2s)and Qianfoya(J2q)formations.Based on this,we explored the sources of the natural gas in the Zhongjiang gas field and determined the natural gas migration patterns and their effects on the properties of light hydrocarbons in the natural gas.The results indicate that the Lower Jurassic lacustrine source rocks of the Zhongjiang gas field contain humic organic matter,with vitrinite reflectance(R_(0))values ranging from 0.86%to 0.98%.Samples meeting the criterion for effective source rocks[total organic carbon(TOC)content≥0.75%]exhibited an average TOC content of merely 1.02%,suggesting significantly lower hydrocarbon generation potential than source rocks in the underlying T3x,which show higher thermal maturity and TOC contents.For natural gas samples from T3χ^(2),T3χ^(4),J2s,and J2q reservoirs,their C_(5-7)iso-alkane content was significantly higher than their n-alkane content,and their methylcyclohexane(MCH)index ranged from 59.0%to 77.3%,indicating the predominance of methylcyclohexane in C_(7)light hydrocarbons.As indicated by the origin identification and gas-source correlation based on the geochemical features of light hydrocarbons,the natural gas in the Zhongjiang gas field is typical coal-derived gas.The gas from the primary pay zone of the Shaximiao Formation,with significantly high K_(1),(P_(2)+N_(2))/C_(7),and P_(3)/C_(7)values,predominantly originated from the 5th member of the T3x and migrated in the free phase,with a small amount possibly sourced from the Lower Jurassic source rocks.The dissolution and adsorption during gas migration led to a decrease in the aromatic content in C_(6-7)light hydrocarbons and an increase in the isoheptane values.Therefore,their effects must be considered when determining the gas origin and thermal maturity based on the aromatic content in C_(6-7) light hydrocarbons and iso-heptane values.

The Original Organism Assemblages and Kerogen Carbon Isotopic Compositions of the Early Paleozoic Source Rocks in the Tarim Basin, China

Original organisms are the biological precursors of organic matter in source rocks. Original organisms in source rocks are informative for oil-source rock correlation and hydrocarbon potential evaluation, especially for source rocks which have high-over level of thermal maturity. Systematic identification of original organism assemblages of the Lower Paleozoic potential source rocks and detailed carbon isotopic composition of kerogen analyses were conducted for four outcrop sections in the Tarim basin. Results indicated that the original organism assemblages of the lower part of the Lower Cambrian were composed mainly of benthic algae, whereas those of the Upper Cambrian and the Ordovician were characterized by planktonic algae. Kerogen carbon isotopic data demonstrated that the δ13 Ckerogen values of source rocks dominated by benthic algae are lower than-34‰, whereas the δ13 Ckerogen values of source rocks dominated by planktonic algae are higher than-30‰ in general. We tentatively suggested that the carbon species those are utilized by algae and the carbon isotopic fractionation during photosynthesis are the major controls for the δ13 Ckerogen values in the Lower Paleozoic source rocks in the Tarim basin. Correlating the δ13 C values of oils exploited in the Tarim basin, the original organism assemblages, and δ13 Ckerogen values of source rocks, it implied that the Lower Paleozoic oils exploited in the Tarim basin should be sourced from the source rocks with original organism assemblages dominated by planktonic algae, and the hydrocarbon sourced from the Cambrian benthic algae should be of great exploration potential in future. Original organism assemblages in source rocks can provide important clues for oil-source rocks correlation, especially for the source rocks with high thermal maturity.

Origin and depositional environments of source rocks and crude oils from Niger Delta Basin: Carbon isotopic evidence

Thirty-nine crude oils and twenty-one rock samples from Niger Delta Basin,Nigeria have been characterized based on their isotope compositions by elemental analysis-isotope ratio mass spectrometry and gas chromatography-isotope ratio mass spectrometry.The bulk carbon isotopic values of the whole rock extracts,saturate and aromatic fractions range from–28.7‰to–26.8‰,–29.2‰to–27.2‰and–28.5‰to–26.7‰,respectively while the bulk carbon isotopic values of the whole oils,saturate and aromatic fractions range from–25.4‰to–27.8‰,–25.9‰to–28.4‰and–23.5‰to–26.9‰,respectively.The average carbon isotopic compositions of individual alkanes(nC12-nC33)in the rock samples range from–34.9‰to–28.2‰whereas the average isotopic values of individual n-alkanes in the oils range from–31.1‰to–23.8‰.Theδ13C isotope ratios of pristane and phytane in the rock samples range from–29.2‰to–28.2‰and–30.2‰to–27.4‰respectively while the pristane and phytane isotopic values range from–32.1‰to–21.9‰and–30.5‰to–26.9‰,respectively.The isotopic values recorded for the samples indicated that the crude oils were formed from the mixed input of terrigenous and marine organic matter and deposited under oxic to sub-oxic condition in lacustrine-fluvial/deltaic environments.The stable carbon isotopic compositions were found to be effective in assessing the origin and depositional environments of crude oils in the Niger Delta Basin.

Characteristics and Natural Gas Origin of Middle-Late Triassic Marine Source Rocks of the Western Sichuan Depression, SW China

A scientific exploration well(CK1) was drilled to expand the oil/gas production in the western Sichuan depression, SW, China. Seventy-three core samples and four natural gas samples from the Middle–Late Triassic strata were analyzed to determine the paleo-depositional setting and the abundance of organic matter(OM) and to evaluate the hydrocarbon-generation process and potential. This information was then used to identify the origin of the natural gas. The OM is characterized by medium n-alkanes(n C15–n C19), low pristane/phytane and terrigenous aquatic ratios(TAR), a carbon preference index(CPI) of ~1, regular steranes with C29 > C27 > C28, gammacerane/C30 hopane ratios of 0.15–0.32, and δDorg of-132‰ to-58‰, suggesting a marine algal/phytoplankton source with terrestrial input deposited in a reducing–transitional saline/marine sedimentary environment. Based on the TOC, HI index, and chloroform bitumen "A" the algalrich dolomites of the Leikoupo Formation are fair–good source rocks;the grey limestones of the Maantang Formation are fair source rocks;and the shales of the Xiaotangzi Formation are moderately good source rocks. In addition, maceral and carbon isotopes indicate that the kerogen of the Leikoupo and Maantang formations is type Ⅱ and that of the Xiaotangzi Formation is type Ⅱ–Ⅲ. The maturity parameters and the hopane and sterane isomerization suggest that the OM was advanced mature and produced wet–dry gases. One-dimensional modeling of the thermal-burial history suggests that hydrocarbon-generation occurred at 220–60 Ma. The gas components and C–H–He–Ar–Ne isotopes indicate that the oilassociated gases were generated in the Leikoupo and Maantang formations, and then, they mixed with gases from the Xiaotangzi Formation, which were probably contributed by the underlying Permian marine source rocks. Therefore, the deeply-buried Middle–Late Triassic marine source rocks in the western Sichuan depression and in similar basins have a great significant hydrocarbon potential.

Source identification of nitrate in the upper aquifer system of the Wadi Shueib catchment area in Jordan based on stable isotope composition

Groundwater forms the main freshwater supply in arid and semi-arid areas,and contamination of this precious resource is complicated by the slow rate of recharge in these areas.Nitrate contamination of groundwater is a global water quality problem,as it entails threat to human health as well as aquatic ecosystems.Source identification of contamination is the cornerstone and a prerequisite for any effective management program of water quality.Stable isotope composition of the dissolved nitrate(δ^(15)N-NO_(3)-andδ^(18)O-NO_(3)-)has been applied to identify NO_(3)-sources and the main transformation processes in the upper aquifer system(A1/2,A4,and B2/A7 aquifers)in the Wadi Shueib catchment area,Jordan.Moreover,the stable isotope compositions of the groundwater(δ^(2)H-H_(2)O andδ^(18)O-H_(2)O)in conjunction with the groundwater hydrochemistry were integrated to investigate the origin and evolution of the groundwater.Results revealed that groundwater in the study area is fresh and hard-very hard water,and mainly a Ca-Mg-Cl type.NO_(3)-concentration was in the range of 7.0-74.0 mg/L with an average of 37.0 mg/L.Most of the samples showed concentration higher than the natural background concentration of NO_(3)-(5.0-10.0 mg/L).Theδ^(2)H-H_(2)O andδ^(18)O-H_(2)O values indicated that the groundwater is meteoric,and of Mediterranean origin,with a strong evaporation effect.Theδ^(15)N-NO_(3)-values ranged between 6.0‰and 11.3‰with an average of 8.7‰,and theδ^(18)O-NO_(3)-values ranged between 1.6‰and 5.9‰with an average of 3.4‰.These values are in conformity with the stable isotope composition of nitrate derived the nitrification of wastewater/manure,and soil NH4.Nitrification and denitrification are the main transformation processes affecting nitrogen species.Statistical analysis revealed no significant differences in theδ^(2)H-H_(2)O andδ^(18)OH_(2)O values,andδ^(15)N-NO_(3)-andδ^(18)O-NO_(3)-values for the three aquifers(A1/2,A4,and B2/A7),indicating that the groundwater of these aquifers has the same origin,and a common source of pollution.

Origin of dolomites in the Permian dolomitic reservoirs of Fengcheng Formation in Mahu Sag,Junggar Basin, NW China

Origin of authigenic dolomites in the dolomitic reservoir of the Permian Fengcheng Formation in the Mahu Sag of Junggar Basin is unclear.Occurrence and genetic evolution of the authigenic dolomites in dolomitic rock reservoir of the Fengcheng Formation in the Mahu Sag were analyzed by polarized and fluorescence thin sections,scanning electron microscope(SEM),electron microprobe(EMP),C,O and Sr isotopes analysis,and other techniques.(1)Dolomites were mainly precipitated in three stages:penecontemporaneous-shallow burial stage(early stage of the Middle Permian),middle burial stage(middle stage of the Middle Permian),and middle-deep burial stage,with the former two stages in dominance.(2)Dolomitization fluid was high-salinity brine originating from alkaline lake.In the penecontemporaneous-shallow burial stage,Mg^(2+)was mainly supplied by alkaline-lake fluid and devitrification of volcanic glass.In the middle burial stage,Mg^(2+)mainly came from the transformation of clay minerals,devitrification of volcanic glass and dissolution of aluminosilicates such as feldspar.(3)Regular changes of Mg,Mn,Fe,Sr,Si and other elements during the growth of dolomite were mainly related to the alkaline-lake fluid,and to different influences of devitrification and diagenetic alteration of volcanic materials during the burial.(4)In the penecontemporaneous stage,induced by alkaline-lake microorganisms,the micritic-microcrystalline dolomites were formed by primary precipitation,replacement of aragonite and high-Mg calcite,and other processes;in the shallow burial stage,the silt-sized dolomites were formed by continuous growth of micritic-microcrystalline dolomite and replacement of calcites,tuffs and other substances;in the middle burial stage,the dolomites,mainly silt-and fine-sized,were formed by replacement of volcanic materials.The research results are referential for investigating the formation mechanism and distribution patterns of tight dolomitic reservoirs in the Mahu Sag and other similar oil and gas bearing areas.

多源数据融合视角下突发公共卫生事件信息公开质量评估体系研究

[目的/意义]构建基于国家政策、研究文献、公众访谈资料在内的多源数据视角下的突发公共卫生事件信息公开质量评估体系,旨在更全面地评估信息公开质量,明确当前信息公开中存在的问题,进而有的放矢提升信息公开质量。[方法/过程]利用扎根理论的研究方法,选取国家政策、研究文献、访谈资料共计32份数据作为原始资料,利用Nvivo12质性分析软件对资料进行开放式编码、主轴式编码和选择式编码,并通过理论饱和度检验验证编码结果可信度。[结果/结论]构建多源数据融合视角下的突发公共卫生事件信息公开质量评估体系,分为基础保障、执行过程、社会效应以及核心内容4个维度,包括资源建设、流程管理、服务提供、传播载体、公众体验、政民互动和信息内容7个一级指标和40个二级指标,并给出了各指标的含义和类属,为有效开展更全面的突发公共卫生事件信息公开质量评估工作提供了理论和实践基础。

鄂尔多斯盆地大牛地气田上古生界致密气轻烃地球化学特征

大牛地气田是鄂尔多斯盆地典型致密砂岩大气田之一。为了更深入了解该区天然气的成因和来源,揭示天然气运移相态,对大牛地气田上古生界致密气开展了轻烃地球化学特征分析。研究表明,该区上古生界致密气C5-7轻烃组成具有异构烷烃优势分布,C6-7轻烃组成中芳烃含量整体偏低(<10%),甚至未检出芳烃,C7轻烃组成具有甲基环己烷优势分布特征,甲基环己烷相对含量均超过50%。上二叠统下石盒子组天然气K_(1)值、K_(2)值均与二叠系山西组和石炭系太原组天然气一致,而δ^(13)C_(1)值则与山西组天然气一致,与太原组天然气有明显不同。与山西组天然气相比,下石盒子组天然气整体具有偏低的苯/正己烷、苯/环己烷和甲苯/正庚烷比值,以及明显偏高的正庚烷/甲基环己烷比值。轻烃地球化学特征及烷烃气碳氢同位素组成综合表明,大牛地气田上古生界天然气为典型煤成气,其中山西组和太原组天然气均为原地自生自储,而下石盒子组天然气为下伏山西组烃源岩生成的天然气经历了游离相垂向运移聚集形成,太原组烃源岩不具有显著贡献。受天然气运移和水溶等作用影响,庚烷值、异庚烷值、苯/正己烷比值等轻烃指标直接用于判识大牛地气田致密气成熟度会存在偏差。

“文明起源”史观之意味:“中西马”视角的考察

“文明起源”作为国内学界使用频率极高的舶来语,主要用以说明距今五千多年至“三代”时期历史文化的发展。但是否合适的问题很少有人认真考虑过,似乎马克思、恩格斯使用了就没有问题。其实马恩晚年虽借用了“文明”等术语,但对其核心内容如剥削、阶级性、虚伪、贪欲、国家镇压机器等都是持具体批判与整体否认态度的,尽管认为如此发展有其必然性,与其他学人用“文明”“野蛮”区分历史进步、停滞与落后,即无意中把知性专断与西方普遍性的观念传播开去明显不同,因为马克思是从人的全面发展和多数人得到解放出发看问题的。从历史研究追求平实公正应该使用更中性一些术语看,用褒义明显的“文明”来说某一时段历史的特质也是不合适的,因为说甲文明意味着乙不文明或野蛮,必然分出等级差别。回到传统中国,被视为“文明起源”这一段历史,中国古人认为是“大同”向“小康”、“公天下”向“私天下”之过渡,是以物役使人性的开始,是战争杀伐愈益激烈和彼此互助走向你争我夺、淳朴自然走向尔虞我诈的时期,此与马恩的认知明显具有相通之处。古史研究使用“文明起源”作为关键词展现的是西方资产阶级重物质、轻人道的历史观,体现的是西方资本主义价值观,不仅与马克思主义、中国文化精神相背离,也与史学自身追求相矛盾,说明目前的古史考量还深陷于西方中心观念之中,反省不够。在此认知基础上文章提出用相对平实的“文化源”代替不甚中性的“文明起源”,以作为中国文化精神开启之初一段历史的研究之用。

定牌加工出口下的商标侵权请求权基础探析

定牌加工出口为我国十分重要的产业发展方向,海关系统也对知识产权提供边境执法保护。然而,假使境外委托方并未在我国境内进行商标注册,并且在我国境内却由第三人拥有该商标专用权,则我国境内受托方定牌加工的行为将可能产生侵权疑虑。在平衡境内商标权利人的权利保护及促进定牌加工制造业发展间,应找出一个平衡点,但长期以来,司法裁判观点历经数次变动与海关执法存在一定的逻辑矛盾,使得相关争议一直存在,因此,明确请求权基础才能把问题从根本上解决,也才能平衡我国加工出口产业的发展及商标权保护。

基层检察视域下诉源治理路径的探寻与完善

作为司法机关和国家法律监督机关的检察机关在诉源治理方面取得了较大成绩,也面临着诸多困境。为了取得诉源治理的更大成绩,从基层检察机关的视角来看,需要从诉源治理的时代要求出发,在司法办案过程中立足自身职能定位,以积极能动的姿态,贯彻诉源治理理念,从不同角度以创新发展的思维和务实的措施,探寻与完善检察建议、公开听证、案例指导、数字检察、公益诉讼等路径,提升诉源治理效能,最大限度减少和避免社会对抗,厚植党的执政基础,为推进国家社会治理体系和治理能力现代化贡献检察力量。

江陵凹陷古近系新沟嘴组下段原油芳烃馏分地球化学特征及油源对比

【目的】油气来源对比是油气勘探的基础,为扩大江陵凹陷油气资源勘探领域。【方法】基于前期饱和烃分析结果,利用色谱—质谱分析技术对江陵凹陷古近系新沟嘴组下段原油的芳烃馏分进行了分析研究,对原油来源进行了探讨。【结果】研究区原油可分为两大类:Ⅰ类原油取自万城断裂构造带和公安单斜带,其母源形成于一般还原环境并且水体具有一定盐度的半深湖相沉积环境,萘系列及三芳甾烷系列高碳数异构体比值体现其母质类型较好以及陆生高等植物输入较少的特点,该类原油整体处于成熟—高熟阶段,其中万城断裂构造带中的万13井和万12井和公安单斜带中的耀5井是高成熟原油,推测处于各自构造单元中最接近油藏充注点的位置;Ⅱ类原油取自荆州背斜带,成熟度低于Ⅰ类原油,母质类型以低等水生生物输入为主但相较于Ⅰ类原油接受了更多的陆生高等植物输入,形成于高盐度、强还原的深湖相沉积环境,且位于荆州背斜带中部及东南部的Ⅱ2类原油相较于荆州背斜带西北部的Ⅱ1类原油成熟度更低、陆生高等植物输入更多。【结论】万城断裂构造带的Ⅱ油组和Ⅲ油组为Ⅰ类原油的主要烃源岩,同时存在来自荆州背斜带Ⅰ油组的贡献,高的成熟度特征可能指示该类原油还存在除本文外的其他区域或层位的贡献;Ⅱ类原油主要来自荆州背斜带和万城断裂构造带的Ⅱ油组,同时存在荆州背斜带北部Ⅲ油组的贡献。

Comprehensive understanding on sources of high levels of fine particulate nitro-aromatic compounds at a coastal rural area in northern China

Nitro-aromatic compounds(NACs)are among the major components of brown carbon(BrC)in the atmosphere,causing negative impacts on regional climate,air quality,and ecological health.Due to the extensive origins,it is still a challenge to figure out the contributions and originating regions for different sources of atmospheric NACs.Here,field observations on fine particulate NACs were conducted at a coastal rural area in Qingdao,China in the winter of 2018 and 2019.The mean total concentrations of fine particulate nitro-aromatic compounds were 125.0±89.5 and 27.7±21.1 ng/m^(3)in the winter of 2018 and 2019,respectively.Among the measured eleven NACs,nitrophenols and nitrocatechols were the most abundant species.Variation characteristics and correlation analysis showed that humidity and anthropogenic primary emissions had significant influences on the NAC abundances.In this study,two tracing methods of the improved spatial concentration weighted trajectory(SCWT)model and the receptor model of positive matrix factorization(PMF)were combined to comprehensively understand the origins of NACs in fine particles at coastal Qingdao.Four major sources were identified,including coal combustion,biomass burning,vehicle exhaust,and secondary formation.Surprisingly,coal combustion was responsible for about half of the observed nitro-aromatic compounds,followed by biomass burning(~30%).The results by SCWT demonstrated that the coal combustion dominated NACs mainly originated from the Shandong peninsula and the areas to the north and southwest,while those dominated by biomass burning primarily came from local Qingdao and the areas to the west.

蒙药玉簪清咽十五味散方源与方解考证

目的 为蒙药玉簪清咽十五味散的进一步研究与利用提供参考。方法 根据蒙医药本草古籍文献记载及现代文献规范标准,结合临床实际用药特点,对玉簪清咽十五味散的方名、基源、方解、方源进行本草考证。结果与结论 该方由15味中药材组方,始载于第司·桑杰嘉措《兰塔布》,属传统蒙药经典验方。单味药基源方面,诃子或金诃子、川楝子、栀子、广酸枣、肉豆蔻、苦参、甘草基源无异议;邦占即玉簪花,檀香即白檀香,竹黄即天竺黄(石灰华、石膏),沙参即北沙参,丁香即公丁香,木香即广木香,巴沙嘎即鸭嘴花,沉香即山沉香,为最佳配伍组合。药味涩、苦、辛、甘、酸分别占26.80%,67.53%,18.56%,24.23%,5.15%;药性寒、凉、平、温分别占24.74%,43.81%,17.01%,14.43%。对感冒引起的咽喉肿痛、胸满、气喘、胸肋作痛、肺热咳嗽、巴达干热等症的疗效确切,具有进一步研究的价值。

滇西腾冲大硐厂Pb-Zn矿床成因:来自稀土元素地球化学的证据

腾冲大硐厂Pb-Zn矿床是西南“三江”成矿带腾冲地块东部具有代表性的矽卡岩型矿床之一,其成矿过程可划分为矽卡岩期(早、晚矽卡岩阶段)和石英-硫化物期(早、晚硫化物阶段)。方解石是该矿床中最主要的脉石矿物,其形成与铅锌矿密切相关。本文对主成矿期(石英-硫化物期)不同阶段方解石的REE特征与成矿早期(矽卡岩期)符山石、绿帘石以及大弯山单元花岗岩、大理岩和灰岩的REE特征进行对比研究。结果表明,主成矿期2个阶段方解石REE配分模式均为右倾型,∑REE分别为84.68×10^(-6)~125.58×10^(-6)和35.08×10^(-6)~38.24×10^(-6),LREE/HREE值为1.59~2.04和4.36~5.38,(La/Yb)_(N)值为1.12~1.81和4.01~5.72,(La/Sm)_(N)值为2.62~3.16和5.09~6.38,(Gd/Yb)_(N)值为0.64~0.97和1.22~1.30。2个阶段方解石的Yb/La-Yb/Ca投点位于岩浆成因与热液成因的交界部位,符山石、绿帘石、早硫化物阶段方解石和大理岩的Y/Ho值与大弯山单元花岗岩关系密切,晚硫化物阶段方解石的Y/Ho值介于大弯山单元花岗岩和围岩之间,暗示矿床主成矿期两阶段方解石皆为岩浆热液成因,成矿流体主要来源于岩浆热液,但成矿流体在主成矿期晚硫化物阶段的水岩反应过程中可能遭受了二叠系灰岩地层的强烈混染。从成矿早期到主成矿期δEu值分别为1.25~1.75和0.54~0.78,δCe值为0.85~0.94和0.94~1.05,氧化还原环境的转变可能是导致矿质沉淀的主要原因,后期水岩反应对矿质沉淀也存在少量影响。矿区中矿体离早白垩世花岗斑岩体较近,主要呈层状、似层状产于断裂的蚀变碳酸盐岩(矽卡岩)中,矽卡岩矿物自深向浅具有分带性。综合区域地质特征及矿床控矿因素分析,认为大硐厂Pb-Zn矿床属于矽卡岩型Pb-Zn矿床。

黄金矿山深部开采井下热源分析

为量化黄金矿山深部开采过程中释放的热量,进而给出热害治理建议,分析了矿区原岩温度随深度的变化并对爆破、围岩、设备等热源散热量进行了计算。研究结果表明:矿区地温梯度约为1.7℃/100 m,进入-752 m中段生产时,原岩温度将达到34.3℃;深部开采过程中,夏季主要散热源为机械设备(电能)及空气压缩散热,分别占比38.18%及26.56%,冬季主要散热源为围岩散热及机械设备,分别占比38.74%及24.81%;深部开采通风量为67.9 m^(3)/s时,可保证深部开采过程中整体环境适宜性,当局部出现高温时,可以针对性采用加大通风进行降温。

设想美好未来,计谋可期天下的有意识构想实现行为

人工智能在硬件、软件、数据、算法、算力、安全、系统、生态8个方面与创新设计结合,进行ID识别、行为模式和需求关系的智能设计,智能感知、智能认知、智能控制、智能网络、智能运算将人类智能的关联、预测和想象核心能力进行模拟学习,完成设想未来、计谋天下的设计活动,提高有意识构想行为,实现三体元宇宙(原宇宙、源宇宙)元设计创造未来可能性的概率。通过高信维、高感质、高交互、高价值和高颜值的设计评测,用科技美学科技伦理实现共生的数实生态文明可持续发展。

《傅青主女科》从塞流澄源复旧论治血崩研习心得及应用

傅山治疗妇科疾病的理论集中展现在《傅青主女科》一书中,其辨证合理,说理简洁,方药精辟,临床应用广泛。本文就《傅青主女科》血崩病证现代研究进展,从塞流澄源复旧治疗血崩特点对中医经典学说的继承和阐释。现代中医妇科临床应用中参照傅山观念诊治时,需要结合西医现代化检查及妇科检查,排除宫颈疾病、子宫内膜疾病、妊娠等,对急性大出血患者,必要时可予以输血补液等抗休克治疗。如果考虑围绝经期功能失调性子宫出血,必要时行诊断性刮宫术,诊断术后病理可排除子宫内膜不良疾病后进行中医药治疗。

被分割的全球价值链:FTA中原产地规则对中国参与全球价值链的影响研究

基于多个GVC国家—行业层面的数据库,利用三重差分法实证分析中国FTA中原产地规则对GVC分工地位和参与度的影响。研究发现:FTA原产地规则显著抑制了中国在GVC中的分工地位和参与度,这种抑制作用在与发展中国家签订的FTA和低技术行业中更明显。原产地规则主要通过限制进口FTA区域外质优价廉产品而抑制中国在GVC的分工地位和参与度。进一步研究发现,包含区域价值成分的原产地规则能显著提升中国在GVC的分工地位和参与度,而完全获得、税则改变以及特定技术要求则具有显著的抑制作用。研究结论为深度理解GVC是区域性的GVC、发展中国家被锁定在GVC低端以及在FTA战略制定中科学设置各种规则等有重要的参考价值。

中国石油加强基础研究打造原创技术策源地的思考与建议

基础研究是整个科学体系的源头,其深度和广度决定着原始创新的动力和活力。加强基础研究是以习近平同志为核心的党中央作出的重大战略部署。中国石油作为国有重要骨干企业,始终坚持事业发展科技先行,把科技创新放到“国之大者”中去思考、谋划和推进,取得了阶段性进展。战略布局总体形成,基础研究条件平台体系基本完善,创新合作持续深化,已在超深层天然气、陆相页岩油、深层煤层气地质理论与勘探开发技术等方面取得一批重大标志性成果。但与原创技术策源地建设和公司高质量发展需求相比,存在基础研究内涵不够清晰、战略方向不够明确、科技体制机制尚不完善、基础研究顶尖人才和团队较少、创新生态有待进一步优化等短板,导致公司具有革命性性和影响力的原创成果缺乏,对原创技术策源地建设支撑力量不足。建议围绕国家战略需求,进一步明确公司基础研究内涵,完善以原创技术策源地建设为统领、以国家级基础研究平台为依托、以基础性前瞻性科技项目为抓手、以各类基金为补充、以体制机制创新为保障的基础研究研发体系,致力在公司愿景和未来业务方向上创造新知识、储备新技术,从源头和底层解决制约公司高质量发展的关键问题,服务原创技术策源地建设和科技高水平自立自强。