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The theory on small intrusions forming large deposits and its exploration significance—Taking for magmaticNi-Cu sulfide deposits example in the northwestern of China

Li Wenyuan,Zhang Zhaowei and Chen Bo

Strategic Study of CAE 2015, Volume 17, Issue 2, Pages 29-34

Abstract:

The theory on small intrusions forming large deposits put forward by academician Zhongli Tang wasOur study is about the mineralization of Ni-Cu sulfide deposits which related to mafic-ultramafic intrusionsIn this paper，we have discussed the theory of small intrusions forming large deposits，considering thatintrusions forming large deposits.，we expand the scientific connotation of the theory on small intrusions forming large deposits，and make

Keywords： mafic-ultramafic intrusions； magmatic Ni-Cu sulfide deposits； small intrusions forming large deposits

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Theoretical system for (large) deposit formed by smaller intrusion

Tang Zhongli,Jiao Jiangang and Yan Haiqing

Strategic Study of CAE 2015, Volume 17, Issue 2, Pages 4-18

Abstract:

The idea that most of the lager deposits were formed by smaller intrusion was firstly proposed onThrough a long term of theoretical researches and guiding prospections， many large and super large depositsBy summarizing the conception， connotation and category of the theory for large deposits formed by smallerintrusion， this paper pointed out that the five key features of this theory are “small， wide，large， high and shallow (potential)”.

Keywords： small intrusions forming large deposits；connotation；category；characteristics；metallogenic model

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The roles of volatiles in mineralizations of magmatic Ni-Cu-PGE sulfide deposits—Implications for potentialmetallogenic mechanism of super-large scale magmatic deposits in small magma

Zhang Mingjie,Tang Qingyan and Li Wenyuan,Yu Ming、Hu Peiqing、Li Jianping

Strategic Study of CAE 2015, Volume 17, Issue 2, Pages 40-49

Abstract: Ni-PGE sulfide deposits in the world.magma， and the sulfide segregation will form super-large scale Ni-PGE sulfide deposits in a large scalesulfide deposits.It is possible to be the metallogenic mechanism of magmatic Ni-PGE sulfide deposits by small mantle derivedmagma (i.e.， small intrusion).

Keywords： volatile； small intrusion； mantle-derived magma； mineralizations

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Magmatic Ore Deposits in Small Rockbody in China

Tang Zhongli

Strategic Study of CAE 2002, Volume 4, Issue 6, Pages 9-12

Abstract:

There is not any large deposit associated with giant layered igneous complex in China.But superlarge and large magmatic deposits have been discovered in many small intrusions.Therefore, research and exploration direction having great potentialities for the magmatic deposits ofsmall intrusions is defined.The Jinchuan and Panzhihua deposits represent two important types of the magmatic deposits in China.

Keywords： small rockbody magmatic deposits exploration

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Compositional and structural study of ash deposits spatially distributed in superheaters of a large biomass-fired

Yishu XU, Xiaowei LIU, Jiuxin QI, Tianpeng ZHANG, Minghou XU, Fangfang FEI, Dingqing LI

Frontiers in Energy 2021, Volume 15, Issue 2, Pages 449-459 doi: 10.1007/s11708-021-0734-3

Abstract: Recognizing the nature and formation progress of the ash deposits is essential to resolve the depositionproblem hindering the wide application of large-scale biomass-fired boilers.The results showed that the deposits in the PSs and HTSs were thin (several millimeters) and compact,The deposits in the upper LTS appeared to be toughly sintered ceramic, while those in the lower LTS wereThe contents of Ca and Si increased from approximately 10% to approximately 60% in the deposits from

Keywords： ash deposition biomass combustion circulating fluidized bed initial layer structure analysis

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Piezoelectric inertial robot for operating in small pipelines based on stick-slip mechanism: modeling

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0697-z

Abstract: Small pipes exist in industrial and biomedical fields, and require microrobots with high operationalprecision and large load capacity to inspect or perform functional tasks.

Keywords： pipeline robot piezoelectric inertial drive stick-slip large load capacity dynamics model small

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Numerical simulation of compaction parameters for sand-filled embankment using large thickness sand filling

Wentao WANG, Chongzhi TU, Rong LUO

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4, Pages 568-576 doi: 10.1007/s11709-017-0444-4

Abstract: The study uses the finite element method to simulate a new technique of highway sand embankment filling in Jianghan Plain district, which can raise the thickness of sand-filled layer from 30 cm to 70 cm and can significantly shorten the construction period based on the guarantee of sand embankment construction quality. After simulating the three compacting proposals carried out on the field test, the study uses COMSOL software to research on the compacting effects of sand-filled layers in larger thicknesses by 22 ton vibratory roller alone, and then to investigate the steady compacting effect of 12 ton vibratory roller. The simulation results indicate that the sand-filled layer thickness of 70 cm is suitable for the new sand filling technique, and the sand-filled embankment project with tight construction period is suggested to choose the 12 ton vibration roller for steady compaction.

Keywords： sand embankment compaction in large thickness numerical simulation small size vibratory roller steady

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Finite element simulations of sheet metal forming under complex strain paths

CHEN Wei, YANG Jichang, WU Xiaofeng, LU Dun, GUO Weigang

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4, Pages 399-403 doi: 10.1007/s11465-007-0069-8

Abstract: Fracture is a common defect in sheet metal forming and it is essentially caused by tensile instabilityThis paper analyzes some experiments and theories for building forming limit diagrams of sheet metalthis, a method that integrates the finite element simulation and experiment was used to research the formingFinally, the forming method of the rear hanger is confirmed.complex strain paths and different strain paths will have great impacts on the result of the sheet metal forming

Keywords： dangerous forming method different hanger forming

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Digital high-efficiency print forming method and device for multi-material casting molds

Zhongde SHAN, Zhi GUO, Dong DU, Feng LIU, Wenjiang LI

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2, Pages 328-337 doi: 10.1007/s11465-019-0574-6

Abstract: This study proposes a novel high-efficiency print forming method and device for multi-material castingThe proposed method is specifically related to the integrated forming of two-way coating and printingThese processes can realize the high-efficiency print forming of high-performance sand molds.The integrated forming method for layered heating and roller compaction presented in this study effectively

Keywords： multi-material casting mold 3D printing efficient print forming method

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Formation mechanism and modeling of surface waviness in incremental sheet forming

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0679-1

Abstract: Improving and controlling surface quality has always been a challenge for incremental sheet forming (

Keywords： surface waviness incremental sheet forming numerical simulation formation mechanism deformation history

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Interference coordination in full-duplex HetNet with large-scale antenna arrays Article

Zhao-yang ZHANG, Wei LYU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 6, Pages 830-840 doi: 10.1631/FITEE.1700047

Abstract: Massive multiple-input multiple-output (MIMO), small cell, and full-duplex are promising techniques for) that consists of a massive-MIMO enabled macro-cell base station (MBS) and a number of full-duplex small-cell

Keywords： Massive MIMO Full-duplex Small cell Wireless backhaul Distributed algorithm

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FEM-based strain analysis study for multilayer sheet forming process

Rongjing ZHANG,Lihui LANG,Rizwan ZAFAR

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4, Pages 373-379 doi: 10.1007/s11465-015-0371-9

Abstract: Different forming modes such as wrinkling and fracture are discussed by using experimental and numericalHydroforming is used for multilayer forming.

Keywords： finite element method (FEM) strain analysis multilayer sheet forming

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Hybrid forming mechanism of patternless casting and laser cladding

Zhongde SHAN, Fuzhen SUN, Yang LIU

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4, Pages 393-401 doi: 10.1007/s11465-019-0550-1

Abstract: In accordance with the requirement of manufacturing dies quickly and economically, a hybrid forming methodAn experimental study is conducted on the hybrid forming process and its trial production and application

Keywords： patternless casting laser cladding hybrid forming rapid tooling

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Highlight yield forming and innovative technologies in tropical crops

Wenquan WANG

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 4, Pages 283-284 doi: 10.15302/J-FASE-2016128

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Properties and effect of forming sewage sludge into lightweight ceramics

Min YUE, Qinyan YUE, Yuanfeng QI, Baoyu GAO, Hui YU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 1, Pages 117-124 doi: 10.1007/s11783-010-0220-3

Abstract: In this work we investigated the chemical, thermal and toxic properties of dried sewage sludge (DSS), the preparation and properties of lightweight sludge ceramic (LSC) and the mechanisms of action of the organic and inorganic foaming agents (OFAs and IFAs). The chemical components and thermal properties of the raw materials were studied by Energy Dispersive X-ray Detection (EDX) and Thermogravimetric Analysis and Differential Scanning Calorimetry (DSC/TGA). The mineral phases of the raw materials and the formed ceramics were determined by X-ray Diffraction (XRD). The leaching characteristics of heavy metals were investigated with Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). Different ratios of DSS and clay were mixed and pressed into raw pellets. After drying and preheating treatment, the raw pellets were sintered at 1150°C for 10 min. The physical properties of LSC (50 wt% DSS added) were tested. The results showed that when the addition of DSS was above 50 wt%, LSC began to shrink, and a maximum density occurred. The environmental safety of LSC was satisfactory. XRD showed that some new mineral phases formed in the LSC. Observation of the microstructure by Scanning Electron Microscope (SEM) indicated that the body of LSC was porous.

Keywords： sludge foaming agents ceramics preheating process

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Title Author Date Type Operation

The theory on small intrusions forming large deposits and its exploration significance—Taking for magmaticNi-Cu sulfide deposits example in the northwestern of China

Li Wenyuan,Zhang Zhaowei and Chen Bo

Journal Article

Theoretical system for (large) deposit formed by smaller intrusion

Tang Zhongli,Jiao Jiangang and Yan Haiqing

Journal Article

The roles of volatiles in mineralizations of magmatic Ni-Cu-PGE sulfide deposits—Implications for potentialmetallogenic mechanism of super-large scale magmatic deposits in small magma

Zhang Mingjie,Tang Qingyan and Li Wenyuan,Yu Ming、Hu Peiqing、Li Jianping

Journal Article

Magmatic Ore Deposits in Small Rockbody in China

Tang Zhongli

Journal Article

Compositional and structural study of ash deposits spatially distributed in superheaters of a large biomass-fired

Yishu XU, Xiaowei LIU, Jiuxin QI, Tianpeng ZHANG, Minghou XU, Fangfang FEI, Dingqing LI

Journal Article

Piezoelectric inertial robot for operating in small pipelines based on stick-slip mechanism: modeling

Journal Article

Numerical simulation of compaction parameters for sand-filled embankment using large thickness sand filling

Wentao WANG, Chongzhi TU, Rong LUO