Resource Type

Journal Article 223

Conference Videos 1

Year

2023 21

2022 46

2021 23

2020 15

2019 11

2018 11

2017 10

2016 14

2015 9

2014 4

2013 3

2012 6

2011 5

2010 4

2009 6

2008 11

2007 10

2005 1

2004 1

2003 1

open ︾

Keywords

nitrogen 12

Nitrogen removal 6

Carbon source 3

Constructed wetland 3

eutrophication 3

Adsorption 2

Anammox 2

COVID-19 2

Complete ammonia oxidizing (comammox) bacteria 2

Diamond anvil cell 2

Dissolved organic nitrogen 2

Feammox 2

High pressure 2

Nitrogen 2

Wastewater treatment 2

biofilm 2

harvest index 2

nitrogen deposition 2

nitrogen management 2

open ︾

Search scope:

排序： Display mode:

The Speedy Development of Artificial Diamond Industry in China

Liu Guangzhi

Strategic Study of CAE 2000, Volume 2, Issue 5,   Pages 31-33

Abstract:

This paper reviews the developing course of artificial diamond after the discovery of natural diamondThe yearly production of artificial diamond of China has been broke 5 × 108cts at 1999

Keywords： artificial diamond     artificial diamond film     Carbon (Carbonado)     poly-crystalline diamond    

HTML PDF Collect

Recognition of diamond grains on surface of fine diamond grinding wheel

HUO Fengwei, JIN Zhuji, KANG Renke, GUO Dongming, YANG Chun

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3,   Pages 325-331 doi: 10.1007/s11465-008-0071-9

Abstract: spatial sampling interval and sampling area for instruments to measure the surface topography of a diamondTo recognize diamond grains, digital filtering is used to eliminate the high frequency disturbance fromthe measured 3D digital surface of the grinding wheel, the geometric features of diamond grains aregrain curvature, and distance between two adjacent diamond grains is proposed.grinding wheel, and the diamond grains are then recognized from the 3D digital surface.

Keywords： topography     frequency disturbance     filtering     analysis     wavelength    

HTML PDF Collect

Ultra-precision ductile grinding of BK7 using super abrasive diamond wheel

ZHAO Qingliang, Brinksmeier Ekkard, Riemer Oltmann, Rickens Kai

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 350-355 doi: 10.1007/s11465-007-0061-3

Abstract: In this paper, a novel conditioning technique using copper bonded diamond grinding wheels of 91 yD grainfirst developed to precisely and effectively condition a nickel-electroplated monolayer coarse-grained diamondUnder optimised conditioning parameters, the super abrasive diamond wheel was well conditioned in termsof a minimized run-out error and flattened diamond grain surfaces of constant peripheral envelope.grinding optical glass featuring nano scale surface roughness, indicating the potential of super abrasive diamond

Keywords： ELID     peripheral     electrolytic in-process     nickel-electroplated monolayer     measurement    

HTML PDF Collect

Dual-reaction-center catalytic process continues Fenton’s story

Chao Lu, Kanglan Deng, Chun Hu, Lai Lyu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1261-x

Abstract: Abstract • Dual-reaction-center (DRC) system breaks through bottleneck of Fenton reaction. • Utilizationfocusing on studying a novel heterogeneous Fenton catalytic process, and we developed the dual-reaction-center

Keywords： Dual reaction centers     Fenton     Pollutant utilization     Electron transfer    

HTML PDF Collect

Air bearing center cross gap of neutron stress spectrometer sample table support system

Yang LI,Yunxin WU,Hai GONG,Xiaolei FENG

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 403-411 doi: 10.1007/s11465-016-0405-y

Abstract: To study the performance of air bearing center cross gap, finite element models (FEMs) were establishedair supply pressure, and gap parameters on the overturning moment and bearing capacity of air bearing center

Keywords： neutron stress spectrometer     sample table     support system     air bearing     center cross gap     simulation     experiment    

HTML PDF Collect

Design and modeling of continuum robot based on virtual-center of motion mechanism

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0739-6

Abstract: The flexural virtual-center of motion (VCM) mechanism can be machined integrally, and this way eliminates

Keywords： VCM mechanism     continuum robot     flexural joint     pseudo-rigid body model     cable-driven    

HTML PDF Collect

Ophiolite-Hosted Diamond: A New Window for Probing Carbon Cycling in the Deep Mantle Review

Dongyang Lian, Jingsui Yang

Engineering 2019, Volume 5, Issue 3,   Pages 406-420 doi: 10.1016/j.eng.2019.02.006

Abstract:

As reported in our prior work, we have recovered microdiamonds and other unusual minerals, including pseudomorph stishovite, moissanite, qingsongite, native elements, metallic alloys, and some crustal minerals (i.e., zircon, quartz, amphibole, and rutile) from ophiolitic peridotites and chromitites. These ophiolite-hosted microdiamonds display different features than kimberlitic, metamorphic, and meteoritic diamonds in terms of isotopic values and mineral inclusions. The characteristic of their light carbon isotopic composition implies that the material source of ophiolite-hosted diamonds is surface-derived organic matter. Coesite inclusions coexisting with kyanite rimming an FeTi alloy from the Luobusa ophiolite show a polycrystalline nature and a prismatic habit, indicating their origin as a replacement of stishovite. The occurrence in kyanite and coesite with inclusions of qingsongite, a cubic boron nitride mineral, and a high-pressure polymorph of rutile (TiO2 II) point to formation pressures of 10–15 GPa at temperatures ~1300 °C, consistent with depths greater than 380 km, near the mantle transition zone (MTZ). Minerals such as moissanite, native elements, and metallic alloys in chromite grains indicate a highly reduced environment for ophiolitic peridotites and chromitites. Widespread occurrence of diamonds in ophiolitic peridotites and chromitites suggests that the oceanic mantle may be a more significant carbon reservoir than previously thought. These ophiolite-hosted diamonds have proved that surface carbon can be subducted into the deep mantle, and have provided us with a new window for probing deep carbon cycling.

Keywords： Ophiolite-hosted diamond     Coesite     Stishovite     Podiform chromitites     Mantle transition zone    

HTML PDF Collect

A Discussion and Study on the Center Shift Phenomena of a Building Fire-whirl

Chen Changkun,Yao Bin,Fan Weicheng

Strategic Study of CAE 2003, Volume 5, Issue 10,   Pages 63-68

Abstract: the behavior of building fire-whirl is studied, and an analytical method to describe and express the centersuch method, the large eddy simulation (LES) technology is employed for numerical simulation of the centerparameters such as average angular velocity, peak of temperature, location of the high-temperature center

Keywords： fire-whirl     center shift     large eddy simulation     building    

HTML PDF Collect

Multi-objective optimization of process parameters in Electro-Discharge Diamond Face Grinding based on

Ravindra Nath YADAV, Vinod YADAVA, G.K. SINGH

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 3,   Pages 319-332 doi: 10.1007/s11465-013-0269-3

Abstract: In this paper, a hybrid machining process of Electrical Discharge Face Grinding (EDFG) and Diamond FaceGrinding (DFG) named as Electrical Discharge Diamond face Grinding (EDDFG) have been studied using a

Keywords： hybrid machining processes (HMPs)     electrical discharge diamond grinding (EDDG)     artificial neural network    

HTML PDF Collect

determine tumor prognosis and molecular characteristics of clear-cell renal cell carcinoma: a multi-center

Frontiers of Medicine doi: 10.1007/s11684-023-1029-3

Abstract: determine tumor prognosis and molecular characteristics of clear-cell renal cell carcinoma: a multi-center

Keywords： tumor prognosis molecular     Microbiome subsets determine     center analysis microbiome     transcriptome data    

HTML PDF Collect

Atypical manifestations of acute coronary syndrome — throat discomfort: a multi-center observational

Frontiers of Medicine 2022, Volume 16, Issue 4,   Pages 651-658 doi: 10.1007/s11684-021-0859-0

Abstract: To present the clinical characteristics and the misdiagnosis rate of acute coronary syndrome manifested primarily as throat discomfort, we conducted a multicentric and retrospective study in the cardiology and otorhinolaryngology departments. Records of patients with primary complaint of throat discomfort, absence of chest pain at onset, and an ultimate diagnosis of acute coronary syndrome, as well as patients with pharyngitis (as controls) were collected from May 2015 to April 2016. The patients’ main manifestations were compared. Logistic regression results showed that chest tightness, dyspnea, perspiring, and exertional throat symptoms were significantly associated with acute coronary syndrome, with odds ratios of 8.3 (95% CI 2.2−31.5), 10.9 (95% CI 1.8−66.9), 25.4 (95% CI 3.6−179.9), and 81.2 (95% CI 13.0−506.7). A total of 25 (56.82%) out of 44 acute coronary syndrome patients, who were first admitted to the otorhinolaryngology department, were misdiagnosed, with a 12% (3/25) mortality rate. Throat discomfort can be the principal manifestation of acute coronary syndrome. Such patients exhibit high misdiagnosis and mortality rates. Exertional throat symptoms, chest tightness, perspiring, and dyspnea were important indicators of acute coronary syndrome in patients whose main complaint was throat discomfort. The awareness of this condition will result in prompt diagnosis and reduce morbidity and mortality.

Keywords： acute coronary syndrome (ACS)     throat discomfort (TD)     throat pain     cardiology departments     non-cardiologic physicians    

HTML PDF Collect

SUSTAINABLE NITROGEN MANAGEMENT IN AUSTRALIAN AGROECOSYSTEMS: CHALLENGES AND OPPORTUNITIES

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 366-372 doi: 10.15302/J-FASE-2022447

Abstract:

● There is huge potential for improvement of nitrogen management in

Keywords： Australian agroecosystems     reactive nitrogen     sustainable development    

HTML PDF Collect

SUSTAINABLE NITROGEN MANAGEMENT FOR VEGETABLE PRODUCTION IN CHINA

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 373-385 doi: 10.15302/J-FASE-2022455

Abstract:

● Sustainable nitrogen management strategies for Chinese vegetable production

Keywords： enhanced-efficiency nitrogen fertilizer     integrated knowledge and products strategy     nitrogen rate     reactivenitrogen loss     vegetable     yield    

HTML PDF Collect

EFFECTS OF SUBSTITUTION OF MINERAL NITROGEN WITH ORGANIC AMENDMENTS ON NITROGEN LOSS FROM SLOPING CROPLAND

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 396-406 doi: 10.15302/J-FASE-2022456

Abstract:

● Interflow acts as the dominant pathway for N loss loadings.

Keywords： improved fertilization regime     interflow     nitrogen forms     nitrogen leaching     purple soil     sloping cropland    

HTML PDF Collect

Nitrogen distribution in the products from the hydrothermal liquefaction of sp. and sp.

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 985-995 doi: 10.1007/s11705-021-2126-y

Abstract: The high contents of nitrogen-containing organic compounds in biocrude obtained from hydrothermal liquefactionThree main forms of nitrogen-containing organic compounds including nitrogen-heterocyclic compounds,The contents of nitrogen-heterocyclic compounds decreased with temperature while amide kept increasingThe effect of residence time on the components of nitrogen-containing organic compounds was similar withcomparing with the nitrogen in neutral amino acids of Chlorella sp.

Keywords： microalgae     hydrothermal liquefaction     biocrude     nitrogen distribution    

HTML PDF Collect

Title Author Date Type Operation

The Speedy Development of Artificial Diamond Industry in China

Liu Guangzhi

Journal Article

Recognition of diamond grains on surface of fine diamond grinding wheel

HUO Fengwei, JIN Zhuji, KANG Renke, GUO Dongming, YANG Chun

Journal Article

Ultra-precision ductile grinding of BK7 using super abrasive diamond wheel

ZHAO Qingliang, Brinksmeier Ekkard, Riemer Oltmann, Rickens Kai

Journal Article

Dual-reaction-center catalytic process continues Fenton’s story

Chao Lu, Kanglan Deng, Chun Hu, Lai Lyu

Journal Article

Air bearing center cross gap of neutron stress spectrometer sample table support system

Yang LI,Yunxin WU,Hai GONG,Xiaolei FENG

Journal Article

Design and modeling of continuum robot based on virtual-center of motion mechanism

Journal Article

Ophiolite-Hosted Diamond: A New Window for Probing Carbon Cycling in the Deep Mantle

Dongyang Lian, Jingsui Yang

Journal Article

A Discussion and Study on the Center Shift Phenomena of a Building Fire-whirl

Chen Changkun,Yao Bin,Fan Weicheng

Journal Article

Multi-objective optimization of process parameters in Electro-Discharge Diamond Face Grinding based on

Ravindra Nath YADAV, Vinod YADAVA, G.K. SINGH

Journal Article

determine tumor prognosis and molecular characteristics of clear-cell renal cell carcinoma: a multi-center

Journal Article

Atypical manifestations of acute coronary syndrome — throat discomfort: a multi-center observational

Journal Article

SUSTAINABLE NITROGEN MANAGEMENT IN AUSTRALIAN AGROECOSYSTEMS: CHALLENGES AND OPPORTUNITIES

Journal Article

SUSTAINABLE NITROGEN MANAGEMENT FOR VEGETABLE PRODUCTION IN CHINA

Journal Article

EFFECTS OF SUBSTITUTION OF MINERAL NITROGEN WITH ORGANIC AMENDMENTS ON NITROGEN LOSS FROM SLOPING CROPLAND

Journal Article

Nitrogen distribution in the products from the hydrothermal liquefaction of sp. and sp.

Journal Article