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1

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Taiji program in space for gravitational universe with the first run key technologies test in Taiji-1

The Taiji Scientific Collaboration ; Wu, Yue-Liang ; Luo, Zi-Ren ; [et al.]

World Scientific Pub Co Pte Ltd ; 2021

In: International Journal of Modern Physics A Vol. 36, No. 11n12 ( 2021-04-30), p. 2102002-

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In: International Journal of Modern Physics A, World Scientific Pub Co Pte Ltd, Vol. 36, No. 11n12 ( 2021-04-30), p. 2102002-

Type of Medium: Online Resource

ISSN: 0217-751X , 1793-656X

URL: Article

DOI: 10.1142/S0217751X21020024

RVK:

UA 4381

Language: English

Publisher: World Scientific Pub Co Pte Ltd

Publication Date: 2021

SSG: 16,12

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2

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China’s first step towards probing the expanding universe and the nature of gravity using a space borne gravitational wave antenna

The Taiji Scientific Collaboration ; Wu, Yue-Liang ; Luo, Zi-Ren ; [et al.]

Springer Science and Business Media LLC ; 2021

In: Communications Physics Vol. 4, No. 1 ( 2021-02-24)

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In: Communications Physics, Springer Science and Business Media LLC, Vol. 4, No. 1 ( 2021-02-24)

Abstract: In this perspective, we outline that a space borne gravitational wave detector network combining LISA and Taiji can be used to measure the Hubble constant with an uncertainty less than 0.5% in ten years, compared with the network of the ground based gravitational wave detectors which can measure the Hubble constant within a 2% uncertainty in the next five years by the standard siren method. Taiji is a Chinese space borne gravitational wave detection mission planned for launch in the early 2030 s. The pilot satellite mission Taiji-1 has been launched in August 2019 to verify the feasibility of Taiji. The results of a few technologies tested on Taiji-1 are presented in this paper.

Type of Medium: Online Resource

ISSN: 2399-3650

URL: Article

DOI: 10.1038/s42005-021-00529-z

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2021

detail.hit.zdb_id: 2921913-9

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3

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High resolution continuous wave terahertz spectroscopy on solid-state samples with coherent detection

Kong, De-Yin ; Wu, Xiao-Jun ; Wang, Bo ; [et al.]

Optica Publishing Group ; 2018

In: Optics Express Vol. 26, No. 14 ( 2018-07-09), p. 17964-

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In: Optics Express, Optica Publishing Group, Vol. 26, No. 14 ( 2018-07-09), p. 17964-

Type of Medium: Online Resource

ISSN: 1094-4087

URL: Article

DOI: 10.1364/OE.26.017964

Language: English

Publisher: Optica Publishing Group

Publication Date: 2018

detail.hit.zdb_id: 1491859-6

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4

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Curing, Thermal and Mechanical Properties of Liquid Crystalline p-SBPEPB/BPAER/DDE System

Huo, Li ; Gao, Jun Gang ; Du, Yong Gang

Trans Tech Publications, Ltd. ; 2011

In: Advanced Materials Research Vol. 239-242 ( 2011-5), p. 3253-3256

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In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 239-242 ( 2011-5), p. 3253-3256

Abstract: The curing, thermal and mechanical properties of bi-component system for bisphenol A epoxy resin (BPAER) modified by liquid crystalline Sulfonyl bis(4,1-phenylene)bis[4-(2,3-epoxypro pyloxy)benzoate] (p-SBPEPB), with 4,4'-diaminodiphenyl ether (DDE) as a curing agent, were investigated. The effect of the different liquid crystalline contents and the heating rate on curing reaction was discussed. The results show that the curing peak temperature decreases, curing rate increases, the glass transition temperature ( T g ) and impact strength all increase with adding of liquid crystalline p-SBPEPB when the content is not over 8wt%.

Type of Medium: Online Resource

ISSN: 1662-8985

URL: Issue

URL: Article

DOI: 10.4028/www.scientific.net/AMR.239-242

DOI: 10.4028/www.scientific.net/AMR.239-242.3253

Language: Unknown

Publisher: Trans Tech Publications, Ltd.

Publication Date: 2011

detail.hit.zdb_id: 2265002-7

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5

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Dynamic rheological behavior and mechanical properties and of PVC/ASA blends

Du, Yong-gang ; Gao, Jun-gang ; Yang, Jian-bo ; [et al.]

Springer Science and Business Media LLC ; 2012

In: Journal of Polymer Research Vol. 19, No. 11 ( 2012-11)

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In: Journal of Polymer Research, Springer Science and Business Media LLC, Vol. 19, No. 11 ( 2012-11)

Type of Medium: Online Resource

ISSN: 1022-9760 , 1572-8935

URL: Article

DOI: 10.1007/s10965-012-9993-3

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2012

detail.hit.zdb_id: 2065616-6

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6

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Rheological Behavior and Mechanical Properties of PVC/V-POSS Nanocomposites

Gao, Jun Gang ; Du, Yong Gang ; Li, Xing

Trans Tech Publications, Ltd. ; 2011

In: Advanced Materials Research Vol. 217-218 ( 2011-3), p. 555-558

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In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 217-218 ( 2011-3), p. 555-558

Abstract: The poly(vinylchloride) (PVC) nanocomposite was prepared by melt mixed of PVC with polyhedral oligomeric silsesquioxanes containing vinyl group (V-POSS). The rheological behavior of V-POSS/PVC nanocomposites was investigated by torque rheometer and capillary rheometer. The influences of composition of blends, shear rate, shear stress on melt apparent viscosity and non-Newtonian index (n) were discussed. The dynamic mechanical properties, mechanical properties and morphology were determined. The result shows that the plastic time of nanocomposites decreases while melt viscosity increases with increasing V-POSS content. V-POSS has a good compatibility with PVC. The nanocomposites have better impact strength with increasing V-POSS content. V-POSS can use as process aid and impact aid at appropriate contents.

Type of Medium: Online Resource

ISSN: 1662-8985

URL: Issue

URL: Article

DOI: 10.4028/www.scientific.net/AMR.217-218

DOI: 10.4028/www.scientific.net/AMR.217-218.555

Language: Unknown

Publisher: Trans Tech Publications, Ltd.

Publication Date: 2011

detail.hit.zdb_id: 2265002-7

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7

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Influence of solvents on pore structure and methane adsorption capacity of lacustrine shales: An example from a Chang 7 shale sample in the Ordos Basin, China

Cao, Yan ; Han, Hui ; Liu, Hou-wu ; [et al.]

Elsevier BV ; 2019

In: Journal of Petroleum Science and Engineering Vol. 178 ( 2019-07), p. 419-428

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In: Journal of Petroleum Science and Engineering, Elsevier BV, Vol. 178 ( 2019-07), p. 419-428

Type of Medium: Online Resource

ISSN: 0920-4105

URL: Article

DOI: 10.1016/j.petrol.2019.03.052

Language: English

Publisher: Elsevier BV

Publication Date: 2019

detail.hit.zdb_id: 1494872-2

SSG: 13

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8

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Development and validation of a nomogram for predicting the disease progression of nonsevere coronavirus disease 2019

Li, Xue-lian ; Wu, Cen ; Xie, Jun-gang ; [et al.]

Walter de Gruyter GmbH ; 2021

In: Journal of Translational Internal Medicine Vol. 9, No. 2 ( 2021-06-01), p. 131-142

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In: Journal of Translational Internal Medicine, Walter de Gruyter GmbH, Vol. 9, No. 2 ( 2021-06-01), p. 131-142

Abstract: The majority of coronavirus disease 2019 (COVID-19) cases are nonsevere, but severe cases have high mortality and need early detection and treatment. We aimed to develop a nomogram to predict the disease progression of nonsevere COVID-19 based on simple data that can be easily obtained even in primary medical institutions. Methods In this retrospective, multicenter cohort study, we extracted data from initial simple medical evaluations of 495 COVID-19 patients randomized (2:1) into a development cohort and a validation cohort. The progression of nonsevere COVID-19 was recorded as the primary outcome. We built a nomogram with the development cohort and tested its performance in the validation cohort. Results The nomogram was developed with the nine factors included in the final model. The area under the curve (AUC) of the nomogram scoring system for predicting the progression of nonsevere COVID-19 into severe COVID-19 was 0.875 and 0.821 in the development cohort and validation cohort, respectively. The nomogram achieved a good concordance index for predicting the progression of nonsevere COVID-19 cases in the development and validation cohorts (concordance index of 0.875 in the development cohort and 0.821 in the validation cohort) and had well-fitted calibration curves showing good agreement between the estimates and the actual endpoint events. Conclusions The proposed nomogram built with a simplified index might help to predict the progression of nonsevere COVID-19; thus, COVID-19 with a high risk of disease progression could be identified in time, allowing an appropriate therapeutic choice according to the potential disease severity.

Type of Medium: Online Resource

ISSN: 2224-4018

URL: Article

DOI: 10.2478/jtim-2021-0030

Language: English

Publisher: Walter de Gruyter GmbH

Publication Date: 2021

detail.hit.zdb_id: 2861892-0

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9

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Synthesis of Three Novel Aromatic Biazomethine Liquid- Crystalline Epoxy Resins and Curing Reaction with Aromatic Diamine

Gao, Jun Gang ; Zhang, Xiao Na ; Du, Yong Gang

Trans Tech Publications, Ltd. ; 2011

In: Advanced Materials Research Vol. 216 ( 2011-3), p. 34-38

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In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 216 ( 2011-3), p. 34-38

Abstract: Three class of novel liquid crystalline epoxy resins containing azomething groups: N,N’-Bis[4-(2,3-epoxypropoxy)benzylidene]-4,4-diamino-diphenyl ether (p-BEPBDDE), N,N’-Bis[4-(2,3-epoxypropoxy)benzylidene] -4,4-diamino-diphenyl methane (p-BEPBDDM) and N,N’-Bis[(4-(2,3-epoxypropoxy)-benzyliden)-1,4- phenylene diamine] (p-BEPBPD) were synthesized and characterized. The results show that p-BEBDDE and p-BEBDDM belong to smectic texture and melting point is 239.5 and 178 oC, respectively. The p-BEPBD is nematic texture between its melting temperature (Tm) of 192 oC and clearing temperature (Ti) of 238 oC. The curing reaction can be described by Ozawa equation, and the alcohol-hydroxyl group can accelerate the curing reaction and decrease Ea in DSC experiment.

Type of Medium: Online Resource

ISSN: 1662-8985

URL: Issue

URL: Article

DOI: 10.4028/www.scientific.net/AMR.216

DOI: 10.4028/www.scientific.net/AMR.216.34

Language: Unknown

Publisher: Trans Tech Publications, Ltd.

Publication Date: 2011

detail.hit.zdb_id: 2265002-7

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10

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Curing Kinetics of Tetrabromo-bisphenol-a Epoxy Resin with Diaminodiphenyl Methane

Yan-Fang, Liu ; 河北大学化学系，保定 071002,Department of Chemistry,Hebei University,Baoding 071002 ; Min, Zhao ; [et al.]

Acta Physico-Chimica Sinica & University Chemistry Editorial Office, Peking University ; 1998

In: Acta Physico-Chimica Sinica Vol. 14, No. 10 ( 1998), p. 927-931

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In: Acta Physico-Chimica Sinica, Acta Physico-Chimica Sinica & University Chemistry Editorial Office, Peking University, Vol. 14, No. 10 ( 1998), p. 927-931

Type of Medium: Online Resource

ISSN: 1000-6818

URL: Article

DOI: 10.3866/PKU.WHXB19981012

Language: English

Publisher: Acta Physico-Chimica Sinica & University Chemistry Editorial Office, Peking University

Publication Date: 1998

detail.hit.zdb_id: 2474339-2

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Kooperativer Bibliotheksverbund

Berlin Brandenburg