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Geology of the Yuanmo Basin, Yunnan

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地质学报 1940年第1期 23-31页

作者： m.n.bien Cenozoic Research Laboratory. Geological Survey of China

InTRODUCTIOn The district city Yuanmo of Yunnan is formerly known as makai. It issituated approximately at latitude 25°36′n and longitude 102°E. The elevation ofthe Yuanmo basin is about 1,160 meters above sea-level, while the mountain rangesto the east and the west of the basin are generally above 2,000 meters. Thisbasin is drained by the Lungtsuanchiang which runs northward and joins the upper

关键词： Yunnan Geology of the Yuanmo Basin

On the Turtle Remains from the Archaeological Site of Anyaug,Houan

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地质学报 1937年第1期 136-148+150页

作者： m.n.bien Cenozoic Research Laboratory Geological Survey of China

This paper embodies the results of a study of the turtle remainscollected during the systematic excavations on the archaeological site ofAnyang,the old capital of the Shang dynasty (circa 1400-1100 B.C.),started since... 详细信息

关键词： Th On the Turtle Remains from the Archaeological Site of Anyaug,Houan

Discovery of Triassic Saurischian and Primitive mammalian Remains at Lufeng, Yunnan

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地质学报 1940年第Z1期 225-234页

作者： m.n.bien Cenozoic Research Laboratory Geological Survey of China

(1) Through the discovery of determinable fossils in the so-called "RedBeds" at Lufeng, Yunnan, parts of these beds have been accurately dated. (2) The name "Shihmen Series" is proposed for the unfossiliferouscapping escarpment sandstones. (3) The name "Lufeng Series" is proposed for the fossiliferous bedswhich lie disconformably under the Shihmen Series and unconformably abovethe pre-Cambrian metamorphic Series (in the Lufeng area).

关键词： Discovery of Triassic Saurischian and Primitive mammalian Remains at Lufeng Yunnan

Cenozoic Geology of the Kaolan-Yungteng Area of Central Kansu

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地质学报 1937年第S1期 221-245+247-260+505-514页

作者： C.C.YOUnG m.n.bien Cenozoic Research Laboratory Geological Survey of China

Although Kansu province is considered to be one of the less exploredregions, yet many excellent geological works had been done in this areaand its vicinities both by foreigners and by Chinese. The most importantand fu... 详细信息

关键词： Cenozoic Geology of the Kaolan-Yungteng Area of Central Kansu

Some Geologic Problems of the Tsinling

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地质学报 1943年第Z1期 15-41页

作者： C.C.YOUnG m.n.bien Cenozoic Research Laboratory Geological Survey of China Cenozoic Research Laboratory Geological Survey of China

InTRODUCTIOn The term Tsinling is used here in its broadest sense, which is even broader than that defined by Chao and Huang. It includes the Tapashan and is a general region in which are situated the catchment areas ... 详细信息

关键词： Some Geologic Problems of the Tsinling

Cave and Rock-Shelter Deposits in Yunnan

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地质学报 1938年第Z1期 325-347+448-449页

作者： m.n.bien L.P.CHIA Cenozoic Research Laboratory Geological Survey of China

The two localities(***.40 and 41)reported in this paper haveall been examined previously by other *** visited

关键词： very

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"Red Beds" of Yunnan

地质学报 1941年第Z1期 157-201页

作者： m.n.bien (Cenozoic Research Laboratory,Geological Survey of China)

The extensive development of the so-called ’’Red Beds" in Central andWestern Yunnan was first made known through the different reports of J.

关键词： of Yunnan der Red Beds

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“Red Beds”of Hunan

地质学报 1938年第Z1期 259-300+443-445页

作者： C.C.YOUnG m.n.bien Y.Y.LEE Cenozoic Research Laboratory Geological Survey of China Geological Survey of China

InTRODUCTIOn The term"Red Beds"has never been used in a restricted sense,because it could include formations of different ages and sometimes theyare not distinctly red in ***"Red Beds"of Hunan were first

关键词： of Hunan Red Beds

magnetic,dielectric and electrical modulus of Ce^(3+) doped cobalt-magnesium ferrite nanoparticles

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Journal of Rare Earths 2024年第2期42卷 373-382,I0005页

作者： n.m.Basfer Hanaa Almaghamsi Department of Physics Umm AL-Qura UniversityMakkahSaudi Arabia Physics Department College of Science and ArtKing Abdulaziz UniversityPOB344Rabigh291Saudi Arabi

In this work,the magnetic,dielectric properties and electric modulus of Ce^(3+) substituted cobaltmagnesium(Co_(0.7)mg_(0.3)Ce_(x)Fe_(2-x)O_4)(labeled as CmCF) ferrite nanoparticles were investigated in *** magnetization decreases from 50.05 to 34.87 emu/g for further substituting Ce^(3+) ***,coercivity increases from 738.22 Gs for the CmCFO sample to 912.10 Gs for the CmCF2 sample,then decreases monotonically to 762.1 Gs for the CmCF5 *** cerium content and particle size play important roles in controlling the magnetization and coercivity of the CmCF *** CmCF nanoferrites are suitable for microwave applications since their high-frequency response ranges from 7.72 to 11.07 *** CmCF nanoferrites' dielectric parameter dispersion exhibits normal *** pristine Co-mg nanoferrite only has ε' value of 28.25,but the nanoferrite mCmF2 has ε' value of365.03,with an enhancing ratio of 1192%.The conduction mechanism of the mCmF nanoferrites was determined by fitting the σ_(ac) results via the Jonscher power *** 653 K,large polaron tunnelling is thought to be responsible for this conduction process,which is followed by electron barrier hopping at higher ***-Cole diagrams at different temperatures,assuring the contributions of the grains and their boundaries at lower temperatures(653 K) and only the grains at higher *** on our results,the CmCF nanoferrites hold magnetic and semiconducting nature,which can be used in magnetic devices and dielectrics in lower-frequencies or conductors in higher-frequencies.

关键词： nanoferrites Rare earth ions magnetic properties Dielectric parameters Impedance spectroscopy

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