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Dative B–N bonds weaven toward two-dimensional purely organic materials for single crystals

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Science China Chemistry 2025年第1期68卷 12-14页

作者： Wei-Lei zhou Siwei Wang yong Chen College of Chemistry and Materials Science Inner Mongolia Key Laboratory of Chemistry for Nature Products and Synthesis for Functional Molecules Innovation Team of Optical Functional Molecular Devices Inner Mongolia Minzu University College of Chemistry Nankai University

Molecular topology is one of the important topics to study and understand the relationship between molecular structure and properties [1]. Particularly, two-dimensional (2D) materials with extremely high surface area and ultra-thin morphology have attracted considerable attention due to their unexpected properties in materials and chemistry [2,3].

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长安医学及其学术特点

中华中医药杂志 2022年第9期37卷 5060-5065页

作者：周永学陕西中医药大学咸阳712046

长安医学是古长安地区历代著名医家及其传承者们经过长期经验积累和理论升华所形成的传统医学体系,其内容主要包括《黄帝内经》奠基的基础理论部分、《千金方》《外台秘要》等著作形成的临床医学部分、《针灸甲乙经》等著作构架的针灸... 详细信息

长安医学是古长安地区历代著名医家及其传承者们经过长期经验积累和理论升华所形成的传统医学体系,其内容主要包括《黄帝内经》奠基的基础理论部分、《千金方》《外台秘要》等著作形成的临床医学部分、《针灸甲乙经》等著作构架的针灸学部分、《神农本草经》《新修本草》等构建的药学部分。长安医学的形成和发展与时代和地域的政治、文化特征紧密结合,具有显著的地域性、系统性、兼容性、传承性和创新性等学术特点。文章通过对长安医学体系及其学术特点的挖掘、梳理和总结,对长安医学做以介绍。

关键词：长安医学基础理论临床医学针灸学药物学学术特点

Design and Application of Turbine Cascade Partitioned Endwall Profiling

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Journal of Thermal Science 2025年第1期34卷 110-128页

作者： ZENG Fei JIANG Ruiqi xue Xingxu DU Wei LUO Lei zhou Xun AECC Hunan Aviation Powerplant Research Institute School of Energy Science and Technology Harbin Institute of Technology Science and Technology on Diesel Engine Turbocharging Laboratory China North Engine Research Institute

The influence of partitioned profiling design based on a large-pitch highly loaded cascade is studied by numerical *** partitioned profile is mainly composed of a pressure-side convex structure near the leading edge and a suction-side convex structure at the midstream and downstream sides of the *** influence of the change in the vertex axial position and peak value of the B-line on the secondary flow control is *** this paper,air(ideal gas) is selected as the flow *** average static pressure at the outlet and the average total temperature at the inlet are kept *** γ-θ is used as the turbulence *** results show that the pressure-side convex structure suppresses the spanwise and pitchwise migration of the inlet flow by adjusting the static pressure distribution of the flow field,so the development of the pressure-side leg of the horseshoe vortex is effectively *** suction-side convex structure adjusts the static pressure distribution of the flow field and increases the included angle between the cross-flow and suction surface,so the accumulation of low-momentum fluid,the development of a corner vortex and the flow separation at the trailing edge of the suction-side surface are all suppressed near the endwall-suction ***,the energy loss coefficient of the large-pitch highly loaded cascade is decreased from 0.0564 to 0.0485,representing a 25% reduction in secondary flow losses.

关键词： Vortex flow

Viscosity and structure relationship with equimolar substitution of CaO with MgO in the CaO–MgO–Al_(2)O_(3)–SiO_(2)slag melts

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 70-79页

作者： yong Hou Shuo Zhang Jie Dang Jia Guo Hanghang zhou xuewei Lü College of Materials Science and Engineering Chongqing UniversityChongqing 400044China Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials Chongqing UniversityChongqing 400044China

Currently,the Al_(2)O_(3)content in the high-alumina slag systems within blast furnaces is generally limited to 16wt%–18.5wt%,making it challenging to overcome this *** most studies that concentrated on managing the MgO/Al_(2)O_(3)ratio or basicity,this paper explored the effect of equimolar substitution of MgO for CaO on the viscosity and structure of a high-alumina CaO-MgO-Al_(2)O_(3)-SiO_(2)slag system,providing theoretical guidance and data to facilitate the application of high-alumina *** results revealed that the viscosity first decreased and then increased with higher MgO substitution,reaching a minimum at 15mol%MgO *** transform infrared spectroscopy(FTIR)results found that the depths of the troughs representing[SiO_(4)]tetrahedra,[AlO_(4)]tetrahedra,and Si-O-Al bending became progressively deeper with increased MgO *** of the Raman spectra showed that the average number of bridging oxygens per Si atom and the X_(Q^(3))/X_(Q^(2))(X_(Q^(i))is the molar fraction of Q^(i) unit,and i is the number of bridging oxygens in a[SiO_(4)]tetrahedral unit)ratio increased from 2.30 and 1.02 to 2.52 and 2.14,respectively,indicating a progressive polymerization of the silicate structure.X-ray photoelectron spectroscopy(XPS)results highlighted that non-bridging oxygen content decreased from 77.97mol% to 63.41mol% with increasing MgO concentration,whereas bridging oxygen and free oxygen contents *** analysis demonstrated a gradual increase in the polymerization degree of the tetrahedral structure with the increase in MgO ***,bond strength is another important factor affecting the slag *** occurrence of a viscosity minimum can be attributed to the complex evolution of bond strengths of non-bridging oxygens generated during depolymerization of the[SiO_(4)]and[AlO_(4)]tetrahedral structures by CaO and MgO.

关键词： aluminosilicate viscosity structure spectroscopy

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基于量效关系探讨扶阳派运用附子特点

时珍国医国药 2017年第5期28卷 1159-1161页

作者：张永周永学成都中医药大学四川成都610072 陕西中医药大学陕西咸阳712046

该文从量效关系角度探讨扶阳派运用附子的特点,通过梳理扶阳派学术理论特色,总结附子功效及适应症,发现扶阳派运用附子的特点在于附子的量效关系——小剂量补火助阳,常与熟地黄、磁石、生枣仁等配伍;大剂量回阳救逆,常与干姜、肉桂、山... 详细信息

该文从量效关系角度探讨扶阳派运用附子的特点,通过梳理扶阳派学术理论特色,总结附子功效及适应症,发现扶阳派运用附子的特点在于附子的量效关系——小剂量补火助阳,常与熟地黄、磁石、生枣仁等配伍;大剂量回阳救逆,常与干姜、肉桂、山茱萸等配伍,且善用小剂量附子治疗危重病证。

关键词：扶阳派学术思想附子临证体会

西罗莫司对慢性轻度不可预知应激大鼠线粒体自噬的影响

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中国临床药理学杂志 2022年第20期38卷 2459-2463页

作者：王萌周永学华北理工大学中医学院河北唐山063210 陕西中医药大学基础医学院陕西阳712046

目的探究西罗莫司对慢性轻度不可预知应激(chronic unpredictable mild stress,CUMS)大鼠行为学和海马区线粒体自噬的影响。方法SD大鼠经过蔗糖偏好率基线测试后,随机分为空白组8只和造模组30只。造模组给予3周的CUMS造模处置,造模成功... 详细信息

目的探究西罗莫司对慢性轻度不可预知应激(chronic unpredictable mild stress,CUMS)大鼠行为学和海马区线粒体自噬的影响。方法SD大鼠经过蔗糖偏好率基线测试后,随机分为空白组8只和造模组30只。造模组给予3周的CUMS造模处置,造模成功的大鼠随机分为模型组8只、对照组9只和实验组9只。空白组和模型组均灌胃给予10 mL·kg^(-1)·d^(-1)0.9%NaCl;对照组灌胃给予10 mL·kg^(-1)·d^(-1)氟西汀;实验组给予腹腔注射10 mL·kg^(-1)·d^(-1)西罗莫司。4组大鼠均干预3周,给药同时继续造模。用蔗糖偏好实验检测蔗糖偏好率变化,用蛋白质印迹法检测磷酸酶及张力蛋白同源物诱导激酶1(PTEN Induced putative kinase 1,PINK-1)和Parkin的表达情况。结果实验组、对照组、模型组和空白组大鼠的蔗糖偏好率分别为0.65±0.06,0.71±0.08,0.41±0.09和0.77±0.08,PINK-1蛋白相对表达水平分别为0.55±0.01,0.62±0.01,0.45±0.01和0.68±0.03,Parkin蛋白相对表达水平分别为0.83±0.01,0.88±0.02,0.57±0.02和0.69±0.02。实验组的上述指标与模型组比较,差异均有统计学意义(均P<0.01)。结论西罗莫司可改善CUMS大鼠蔗糖偏好率,其机制可能与调控PINK-1/Parkin通路介导的线粒体自噬有关。

关键词：西罗莫司抑郁症磷酸酶及张力蛋白同源物诱导激酶1/Parkin通路线粒体自噬

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中医郁病理论的源流与发展

中华中医药杂志 2022年第4期37卷 1878-1881页

作者：王萌周永学华北理工大学中医学院唐山063210 陕西中医药大学基础医学院咸阳712046

郁证的含义有二:一为病机,指疾病过程中人体气血郁滞不畅的状态,为广义郁证;二为郁病,由情志不舒、气机郁滞所致的一类病证,为狭义郁证。金元之前,二者无明确之分,郁多指病机。明代以后,张景岳首次提出“因郁致病”,明确了狭义郁证。二... 详细信息

郁证的含义有二:一为病机,指疾病过程中人体气血郁滞不畅的状态,为广义郁证;二为郁病,由情志不舒、气机郁滞所致的一类病证,为狭义郁证。金元之前,二者无明确之分,郁多指病机。明代以后,张景岳首次提出“因郁致病”,明确了狭义郁证。二者从相互渗透到层次分明,狭义郁证最终被定义为“郁病”。郁病的范畴广泛,包括多种情感性精神障碍,如焦虑症、抑郁症、神经衰弱、癔病、强迫症等。从秦汉时期至近现代,郁病逐渐形成了系统的理论体系。

关键词：郁病理论体系源流发展

Grounded-source short offset transient electromagnetic method:Theory and applications in deep mineral exploration

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Science China Earth Sciences 2025年

作者： Guoqiang xue Xin WU Weiying CHEN Nannan zhou Key Laboratory of Mineral Resources Institute of Geology and Geophysics Chinese Academy of Sciences College of Earth and Planetary Sciences University of Chinese Academy of Sciences

Abstract The Transient Electromagnetic (TEM) method is a critical geophysical technique for subsurface exploration of metal ore bodies, primarily utilizing either loop or grounded transmitters. The Long Offset Transient Electromagnetic(LOTEM) method employs a grounded-source transmitter, relying on a far-source observation mode and plane wave approximation for detection. However, LOTEM’s far-source configuration weakens signal strength, and the plane wave approximation reduces precision, limiting effective detection depth to approximately 1000 m with a comprehensive error of about 15%. Recently, we have developed the grounded-source Short Offset Transient Electromagnetic (SOTEM) method,achieving greater detection depth and accuracy within the 500–2000 m depth range, a crucial interval for mineral resource exploration. This study explores the theoretical framework, instrumentation, data processing, and field applications of SOTEM. Based on a point charge element model, SOTEM accurately computes surface wave effects in EM field calculations,optimized for near-source observation. High-power, high-resolution, wide-bandwidth exploration equipment and an advanced three-dimensional hybrid inversion technique were also developed to enhance the method’s effectiveness. Application of SOTEM to the deep exploration of the zhou’an Ni-Cu-PGE deposit in Henan Province yielded high-resolution imaging of conductivity structures to about 2.5 km depth. These results, consistent with existing drill data, delineated mineralized ore bodies from surrounding formations, identified zones of mineralization potential, and suggested extensive resource prospects in the region.

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从中焦论治郁证学术思想探讨

中华中医药杂志 2019年第9期34卷 4142-4144页

作者：王萌周永学成都中医药大学成都610072 陕西中医药大学咸阳712046

脾藏意主思,为谏议之官,人的情志功能活动与脾密切相关。脾的功能正常是神志活动的基础。郁证的发病与脾密切相关,治疗郁证可从中焦论治,如半夏厚朴汤理枢机行气化痰解郁;茯苓桂枝甘草大枣汤培脾土通阳利水解郁;甘麦大枣汤补中气健脾安... 详细信息

脾藏意主思,为谏议之官,人的情志功能活动与脾密切相关。脾的功能正常是神志活动的基础。郁证的发病与脾密切相关,治疗郁证可从中焦论治,如半夏厚朴汤理枢机行气化痰解郁;茯苓桂枝甘草大枣汤培脾土通阳利水解郁;甘麦大枣汤补中气健脾安神解郁;小建中汤调阴阳和中缓急解郁。

关键词：中焦郁证学术思想