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教育数字化转型进程中城乡教师协作教学的影响因素研究

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四川师范大学学报（自然科学版） 2025年第1期48卷 50-60页

作者：罗江华李曦马哲生西南大学宜宾研究院四川宜宾644005 成都工业学院人文与设计学院四川成都611730 成都市草堂小学西区分校四川成都610073

明确哪些因素在教育数字化转型中支持了城乡教师之间的协作教学,研究活动采用田野工作观察、访谈与问卷调查相结合的方法,基于“四平衡”监控和学习型组织理论构建“三层级七要素模型”,并运用结构方程模型分析了问卷数据.研究发现:教... 详细信息

明确哪些因素在教育数字化转型中支持了城乡教师之间的协作教学,研究活动采用田野工作观察、访谈与问卷调查相结合的方法,基于“四平衡”监控和学习型组织理论构建“三层级七要素模型”,并运用结构方程模型分析了问卷数据.研究发现:教师数字胜任力是核心影响要素,学校组织支持通过教师数字胜任力的中介作用间接影响协作教学;数字教学资源对协作教学有显著影响.针对这些发现,建议进一步落实组织支持,强化数字化领导场景,有效推进数字能力建设,确保数字化技术的优势能够转化为实际教学胜势;应促进数字教学资源创新应用,增强教育数字化转型的实效性和适应性.

关键词：教育数字化转型城乡教师协作教学影响因素

Crystal structure refinement of suolunite and its significance to the cement techniques

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Chinese Science Bulletin 1999年第23期44卷 2125-2130页

作者： zhesheng ma Nicheng Shi Guodong Mou Libing Liao China Univ Geosci Xray Lab Beijing 100083 Peoples R China

Based on the crystal structure refinement, the arrangement and characteristics of the double tetrahedra of Si-O backbone of suolunite have been precisely clarified. The double tetrahedra are isolated, and the orientations of the closely adjacent double tetrahedra are perpendicular to each other, which results in the poor cleavage and high hardness of suolunite. Com-

关键词： suolunite crystal structure C-S-H gel cement manufacturing techniques.

STM study on micromorphology of pyrite and dynamic significance of ore-formation

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Chinese Science Bulletin 1999年第15期44卷 1401-1403,1442页

作者： Rong Ye Lunshan Zhao zhesheng ma Yongli Shen Xiaoping Zhao Chinese Acad Sci Inst Geochem Guiyang 550002 Peoples R China China Univ Geosci Beijing 100083 Peoples R China Jiangsu Univ Technol Zhanjiang 212000 Peoples R China

A careful scanning tunneling microscope (STM) observation has been made on the micromorphology structure of the crystal faces for a group of pyrites which include two types of pyrite specimens: natural pyrites, from the different stage of hydrothermal ore deposits and artificial crystal of pyrite. It has been discovered that there is a set of micromorphological structures on the surfaces of pyrite crystals, including pisolitic hillocks, lotus root-like hillocks and spiral steps. This study reveals that the micromorphology of pyrite crystals, which are closely related to thermodynamic conditions and dynamic environment of the ore-forming systems, carries a lot of genetic information.

关键词： STM micromorphology of pyrite dynamics of ore-forming processes.

Naquite, FeSi, a New Mineral Species from Luobusha, Tibet, Western China

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Acta Geologica Sinica(English Edition) 2012年第3期86卷 533-538页

作者： SHI Nlcheng BAI Wenji LI Guowu XIONG Ming YANG Jingsu ma zhesheng RONG He Crystal Structure Laboratory China University ofGeosciencesBeijing 100083China Institute of Geology CAGSBeijing 100037China

A new mineral species, named naquite（FeSi）, is found in the podiform chromitites of the Luobusha ophiolite in Qusong County, Tibet, China. The detailed composition is Fe 65.65, Si 32.57 and Al 1.78 wt%. The mineral is cubic, space group P213. The irregular crystals range from 15 to 50 μm in diameter and form an intergrowth with luobusaite. Naquite is steel grey in color, opaque, with a metallic lustre and gives a grayish-black streak. The mineral is brittle, has a conchoidal fracture and no apparent cleavage. The estimated Mohs hardness is 6.5, and the calculated density is 6.128 g/cm3. Unit-cell parameters are a 4.486 （4） A, V 90.28 （6）A^3, Z=4. The five strongest powder diffraction lines [d inA（hkl）（I/I0）] are： 3.1742 （110）（40）, 2.5917（111）（43）, 2.0076 （210）（100）, 1.8307 （211）（65）, and 1.1990 （321）（36）. Originally called ＇fersilicite＇, the species and new name have now been approved by the CNMNC （Ima 2010-010）.

关键词： new mineral fersilicite chromite Luobusha ophiolite Tibet

Titanium, Ti, A New Mineral Species from Luobusha, Tibet, China

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Acta Geologica Sinica(English Edition) 2013年第5期87卷 1275-1280页

作者： FANG Qingsong BAI Wenji YANG Jingsu RONG He SHI Nicheng LI Guowu XIONG Ming ma zhesheng Institute of Geology CAGS X-ray Diffraction Laboratory China University of Geosciences

We describe the new mineral species titanium, ideally Ti, found in the podiform chromitites of the Luobusha ophiolite in Tibet, People＇s Republic of China. The irregular crystals range from 0.1 to 0.6 mm in diameter and form an intergrowth with coesite and kyanite. Titanium is silver grey in colour, the luster is metallic, it is opaque, the streak is grayish black, and it is non-fluorescent. The mineral is malleable, has a rough to hackly fracture and has no apparent cleavage. The estimated Mohs hardness is 4, and the calculated density is 4.503 g/cm3. The composition is Ti 99.23-100.00 wt%. The mineral is hexagonal, space group P6flmmc. Unit-cell parameters are a 2.950 （2） ~, c 4.686 （1） A,V 35.32 （5） A3, Z = 2. The five strongest powder diffraction lines [d in A （hkl）（I/I0）] are： 2.569 （010）（32）, 2.254（011）（100）, 1.730 （012）（16）, 1.478 （110）（21）, and 0.9464 （121）（8）. The species and name were approved by the CNMNC （Ima 2010-044）.

关键词： Titanium new mineral species Ti chromitite Luobusha ophiolite Tibet

Yarlongite:A New Metallic Carbide Mineral

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Acta Geologica Sinica(English Edition) 2009年第1期83卷 52-56页

作者： SHI Nicheng BAI Wenji LI Guowu XIONG Ming FANG Qingsong YANG Jingsui ma zhesheng RONG He X-ray Laboratory China University ofGeosciences Beijing 100083 China Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China

Yarlongite occurs in ophiolitic chromitite at the Luobusha mine （29°5′N 92°5′E, about 200 km ESE of Lhasa）, Qusum County, Shannan Prefecture, Tibet Autonomous Region, People＇s Republic of China. Associated minerals are： diamond, moissanite, wiistite, iridium （＂osmiridium＂）, osmium （＂iridosmine＂）, periclase, chromite, native iron, native nickel, native chromium, forsterite, Cr-rich diopside, intermetallic compounds Ni-Fe-Cr, Ni-Cr, Cr-C, etc. Yarlongite and its associated minerals were handpicked from a large heavy mineral sample of chromitite. The metallic carbides associated with yarlongite are cohenite, tongbaite, khamrabaevite and qusongite （Ima2007-034）. Yarlongite occurs as irregular grains, with a size between 0.02 and 0.06 mm, steel-grey colour, H Mohs： 5^1/2-6. Tenacity： brittle. Cleavage：（0 0 1） perfect. Fracture： conchoidal. Chemical formula：（Cr4Fe4Ni）29C4, or （Cr,Fe,Ni）29C4, Crystal system： Hexagonal, Space Group： P63/mc, a = 18.839（2） A, c = 4.4960 （9） A, V = 745.7（2） A^3, Z = 6, Density （calc.） = 7.19 g/cm3 （with simplified formula）. Yariongite has been approved as a new mineral by the CNMNC （Ima2007-035）. Holotype material is deposited at the Geological Museum of China （No. Ml1650）.

关键词： yarlongite new mineral metallic carbides ophiolite luobusha Tibet

Redetermination of the Crystal Structure of Vesignieite

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Acta Geologica Sinica(English Edition) 1991年第2期65卷 145-151页

作者： ma zhesheng He Ruilin Zhu Xiaoling China University of Geosciences Institute of Geology and Mineral Resources, Shaanxi Institute of Mineral Depostis, Chinese Academy of Geological Sciences China University of Geosciences China

Vesignieite, Cu_3Ba(VO_4)_2(OH)_2, crystallizes in space group C_2 / m with a°=1.0270(2), b°=0.5911(1),c°=0.7711(2)nm and β=116.42(3)°. The intensity data were collected with the RIGAKU RASA-IISsingle-crystal four-circle diffractometer. The structure was determined by Patterson and Fourier methods andrefined by the least-square technique to a final R index of 0.051 for 614 independent diffraction points with|F? |>3σ|F?|. The crystal structure analysis shows that vesignieite has a layer structure parallel to (001). The powder diffraction lines were reindexed.

关键词： Redetermination of the Crystal Structure of Vesignieite

A New Three-Dimensional Superstructure in Bafertisite

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Acta Geologica Sinica(English Edition) 2011年第5期85卷 1028-1035页

作者： LI Guowu~*,XIONG Ming,SHI Nicheng and ma zhesheng Crystal structure laboratory,National Laboratory of Mineral materials,China University of Geosciences (Beijing),Beijing 100083,China Crystal structure laboratory National Laboratory of Mineral Materials China University of Geosciences (Beijing) Beijing 100083 China

A new superstructure was found in bafertisite[(Ba;Na;);(Fe;Mn;Mg;);TiO [(Si;Ti;Al;Cr;);O;](OH;F;Cl;);]from Donghai County,Jiangsu Province,*** occurrence of the superstructure reflections were observed by single crystal diffraction using a SmaR APEX *** a;,b;and c;axis directions revealed extra weak reflection spots of the *** apparent 2a,2b and 2c superstructure is monoclinic with unit cell a=10.6502（15） A,b= 13.7233（19）A,c=21.6897（3）A,α=90°,β=94.698（3）°,γ=90°,space group Cm,Z=*** c;extra weak reflections are ignored,the secondary supercell gave a cell a=10.6548（15）A,b=13.7284（19）A,c = 11.6900（17）A,α=90°,β=112.322（28）°,γ=90°,space group Cm,Z=*** basic subcell was obtained by ignoring all extra weak reflection spots and gave:a=5.3249（17）A,b=6.8669（22）A,c=10.8709（36） A,α=90°,β=94.740（62）°,γ=90°,space P2;/m,Z=*** superstructure has been refined to R = 0.063 for 7805[R;= 0.0266]unique reflections I>2δ（I）.The structure consists of an octahedra（O） sheet sandwiched between two heteropolyhedral（H） *** sheets consist of Ti-octahedra and twin tetrahedral disilicate groups[Si;O;].The O sheet comprises（Fe,Mg）O;*** large Ba cation is located in the interlayer *** refined structure shows Fe,Mg are partly *** shifting of the TiO;octahedron and SiO;tetrahedron sites in the sheet may be a consequence of the superstructure.

关键词： bafertisite superstructure crystal structure layered titanium silicate

Mineralogy and crystal structure determination of Mg-fillowite

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Science China Earth Sciences 2005年第5期48卷 635-646页

作者： ma zhesheng 1 , SHI Nicheng 1 & YE Danian 2 1. China University of Geosciences, Beijing 100083, China 2. Institute of Geology, Chinese Academy of Sciences, Beijing 100029, China China University of Geosciences Beijing China Institute of Geology Chinese Academy of Sciences Beijing China

Accurate crystal structure determination of complex phosphate Mg-fillowite ? Na2Ca(Mn4Mg2Fe)7[PO4]6 has been finished. Mg-fillowite occurs in muscovite-pegmatite in the Altay area, Xinjiang, China. It is of the trigonal lattice, with space group R-3, unit cell a=1.5143(3) nm, c=4.3191(2) nm, V=8.5736 nm3, Z = 18. The R-factor of the determination accuracy is R (I > 2σ ( I )) = 0.0776. The cationic polyhedra consist of two kinds of structural units: compound col- umn and screw column. In three-dimensional space, they are linked with each other through corner sharing or edge sharing to build the entire structure. There are 45 atoms in an asymmetric unit and 720 atoms in a unit cell. In terms of types and connection manners of the coordination polyhedra, the degree of complicity is rarely seen in all mineral crystal structures. Study of such a structure is significant for the classification of phosphate and the building rule of coordination polyhedra in a complex crystal structure.

关键词： Mg-fillowite, complex phosphate, crystal structure, coordination polyhedron.