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Pressure control method and device innovative design for deep oil in-situ exploration and coring
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作者 Nian-Han Wu Ming-Zhong Gao +5 位作者 Liang-Yu Zhu Jia-Nan Li Dong Fan bin you Wei Luo Guo-Dong Zhu 《Petroleum Science》 SCIE EI CAS CSCD 2023年第2期1169-1182,共14页
Deep oil exploration coring technology cannot accurately maintain the in-situ pressure and temperature of samples, which leads to a distortion of deep oil and gas resource reserve evaluations based on conventional cor... Deep oil exploration coring technology cannot accurately maintain the in-situ pressure and temperature of samples, which leads to a distortion of deep oil and gas resource reserve evaluations based on conventional cores and cannot guide the development of deep oil and gas resources on Earth. The fundamental reason is the lack of temperature and pressure control in in-situ coring environments. In this paper, a pressure control method of a coring device is studied. The theory and method of deep intelligent temperature-pressure coupling control are innovatively proposed, and a multifield coupling dynamic sealing model is established. The optimal cardinality three term PID (Proportional-Integral-Differential) intelligent control algorithm of pressure system is developed. The temperature-pressure characteristic of the gas-liquid two-phase cavity is analyzed, and the pressure intelligent control is carried out based on three term PID control algorithms. An in-situ condition-preserved coring (ICP-Coring) device is developed, and an intelligent control system for the temperature and pressure of the coring device is designed and verified by experiments. The results show that the temperature-pressure coupling control system can effectively realize stable sealing under temperature-pressure fields of 140 MPa and 150 °C. The temperature-pressure coupling control method can accurately realize a constant pressure inside the coring device. The maximum working pressure is 140 MPa, and the effective pressure compensation range is 20 MPa. The numerical simulation experiment of pressure system control algorithm is carried out, and the optimal cardinality and three term coefficients are obtained. The pressure steady-state error is less than 0.01%. The method of temperature-pressure coupling control has guiding significance for coring device research, and is also the basis for temperature-pressure decoupling control in ICP-Coring. 展开更多
关键词 Deep oil exploration Fidelity coring device Temperature-pressure coupling control theory Pressure control algorithm Temperature-pressure field alternating model
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尤昭玲“带粘速孕”新理念及临床经验 被引量:6
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作者 宾悠 谈珍瑜 《实用中医药杂志》 2021年第3期491-493,共3页
尤昭玲教授是第4批国家名老中医学术继承指导老师,从事中医妇科临床40年,积累了颇为丰富的临床经验,擅治各种妇科疑难杂症,特别是对不孕不育、月经不调等疾病的中医特色化治疗。宫腔粘连(Intrauterine adhesion,IUA)导致子宫内膜容受性... 尤昭玲教授是第4批国家名老中医学术继承指导老师,从事中医妇科临床40年,积累了颇为丰富的临床经验,擅治各种妇科疑难杂症,特别是对不孕不育、月经不调等疾病的中医特色化治疗。宫腔粘连(Intrauterine adhesion,IUA)导致子宫内膜容受性下降,而子宫内膜容受性是胚胎植入的关键因素[1]。其诱因与各种宫腔操作密切相关,如人流、清宫等。主要临床表现为月经量减少甚至闭经、不孕及周期性腹痛等。妊娠后易发生反复流产、胎盘植入、早产及产后出血等不良妊娠结局[2]。目前以宫腔镜下粘连分解术并辅以雌激素治疗作为标准治疗手段[3]。术后常配合置入球囊或节育器或使用透明质酸钠凝胶防止再次粘连或减轻粘连复发的程度;羊膜移植可促进内膜组织增生修复、小剂量阿司匹林改善宫腔微循环以促进内膜修复。但手术易造成宫腔二次粘连损伤[4]。研究表明,宫腔粘连分离术后宫腔再粘连率为3.1%~23.5%,重度IUA复发率最高达62.5%[5]。干细胞工程为防止宫腔粘连复发的治疗开辟了一条新的道路,而单纯移植干细胞的效果并不理想[6]。 展开更多
关键词 子宫内膜容受性 宫腔粘连 雌激素治疗 周期性腹痛 胎盘植入 中医特色 不孕不育 尤昭玲
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Plasmonic properties of graphene on uniaxially anisotropic substrates
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作者 Shengchuan Wang bin you +3 位作者 Rui Zhang Kui Han Xiaopeng Shen Weihua Wang 《Chinese Physics B》 SCIE EI CAS CSCD 2021年第3期473-478,共6页
Most of the current graphene plasmonic researches are based on the substrates with isotropic dielectric constant such as silicon.In this work,we investigate optical properties of graphene nanoribbon arrays placed on a... Most of the current graphene plasmonic researches are based on the substrates with isotropic dielectric constant such as silicon.In this work,we investigate optical properties of graphene nanoribbon arrays placed on a uniaxially anisotropic substrate,where the anisotropy provides an additional freedom to tune the behaviors of graphene plasmons,and its effect can be described by a simple effective formula.In practice,the substrates of semi-infinite and finite thickness are discussed by using both the formula and full wave simulations.Particularly,the dielectric constants ε|| and ε⊥ approaching zero are intensively studied,which show different impacts on the transverse magnetic(TM) surface modes.In reality,the hexagonal boron nitride(hBN) can be chosen as the anisotropic substrate,which is also a hyperbolic material in nature. 展开更多
关键词 GRAPHENE PLASMONICS ANISOTROPY hexagonal boron nitride
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文明互鉴视域下宗教中国化之思
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作者 游斌 罗越源 《中央社会主义学院学报》 2023年第1期91-99,共9页
历史上中国宗教是文明间不断互鉴交流的产物,世界宗教在中华文化浸润中持续进行时代化、中国化,实现创造性转化和创新性发展,同时丰富中华文明、世界文明的多样性。当前,文明间的会通融合仍是坚持我国宗教中国化方向的基本路径。为此有... 历史上中国宗教是文明间不断互鉴交流的产物,世界宗教在中华文化浸润中持续进行时代化、中国化,实现创造性转化和创新性发展,同时丰富中华文明、世界文明的多样性。当前,文明间的会通融合仍是坚持我国宗教中国化方向的基本路径。为此有必要考察当代国际学界代表性的宗教对话与文明互鉴理论——经文辩读、比较神学、跨宗教神学,并结合中华传统的对话智慧如“万物并育而不相害”“修己以安人”等,形成以“互鉴通和”为标识性概念的中国特色对话理念。各大宗教文明与中华优秀传统文化进行“互鉴通和”,通过修复、重溯、回归、重构、重建、更新,形成具有中国特色的宗教思想体系,是推进宗教中国化的核心抓手。 展开更多
关键词 宗教中国化 文明互鉴 比较神学 跨宗教神学 返本开新
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坚持宗教中国化,构建中华文明共同体
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作者 游斌 徐珊珊 《Journal of the Chinese Nation Studies》 2023年第3期46-56,共11页
Historically,Chinese religions have been the product of continuous exchange with and mutual learning from other religions and civilizations.Religions from other areas of the world,especially Buddhism from India,Christ... Historically,Chinese religions have been the product of continuous exchange with and mutual learning from other religions and civilizations.Religions from other areas of the world,especially Buddhism from India,Christianity from the Mediterranean,and Islam from Arabia have been localized and inculturated by absorbing elements of Chinese culture,achieving new Chinese forms through creative transformation and innovative development while enriching the diversity and enhancing the flourishing of Chinese culture.To continue to support the inculturation of religions in China and to foster dialogue between them and Chinese culture is to build China as a cultural community with diverse religions.It is necessary therefore to consult the representative theories and practices of inter-religious dialogue in contemporary international academic circles—e.g.,scriptural reasoning,comparative theology,and interreligious theology then to develop inculturated forms of world religions through a comprehensive inculturation strategy of recovering,retrieving,restoring,reconfiguring,reconstructing,and renewing.By such means,we can contribute to building up China as a cultural community of religious diversity. 展开更多
关键词 INCULTURATION Mutual Learning between Cultures Comparative Theology Interreligious Theology Cultural Community
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