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Showing 1 to 12 of 246 entries
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Aberration correction of double-sided telecentric zoom lenses using lens modules.

Applied optics

Zhang J, Chen X, Xi J, Wu Z.
PMID: 25322087
Appl Opt. 2014 Sep 20;53(27):6123-32. doi: 10.1364/AO.53.006123.

A systematic approach for the aberration design of a four-component double-sided telecentric zoom lens system is presented. The Gaussian structure of the zoom system is specified previously which means the powers and movements of components are known. Each component...

Association between .

Oncotarget

Liu K, Liu X, Gu S, Sun Q, Wang Y, Meng J, Xu Z.
PMID: 28977960
Oncotarget. 2017 Jul 24;8(37):62463-62469. doi: 10.18632/oncotarget.19516. eCollection 2017 Sep 22.

BACKGROUND: Epidemiological studies have investigated the role of transforming growth factor-β1 (TGF-β1) in chronic allograft dysfunction (CAD) following kidney transplantation. MATERIALS AND METHODS: MEDLINE, EMBASE, the Cochrane Central Register of Controlled Trials (CENTRAL), Embase, the Chinese CNKI and WANFANG...

Diagnostic value of OMOM capsule endoscopy for small bowel diseases in adults.

Experimental and therapeutic medicine

Zhang L, Shen J, Guo L, Cheng F, Fan Q, Ni K, Xia S, Zhou D.
PMID: 29545870
Exp Ther Med. 2018 Apr;15(4):3467-3470. doi: 10.3892/etm.2018.5864. Epub 2018 Feb 13.

The present study aimed to determine the diagnostic yield of OMOM capsule endoscopy for small bowel diseases in adults. A total of 89 patients, including 45 cases of obscure abdominal pain, 22 of chronic diarrhea, 18 of obscure gastrointestinal...

Topical video object discovery from key frames by modeling word co-occurrence prior.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society

Zhao G, Yuan J, Hua G, Yang J.
PMID: 26452282
IEEE Trans Image Process. 2015 Dec;24(12):5739-52. doi: 10.1109/TIP.2015.2487834. Epub 2015 Oct 07.

A topical video object refers to an object, that is, frequently highlighted in a video. It could be, e.g., the product logo and the leading actor/actress in a TV commercial. We propose a topic model that incorporates a word...

Subcutaneous nephrovesical bypass: Treatment for ureteral obstruction in advanced metastatic disease.

Oncology letters

Wang Y, Wang G, Hou P, Zhuang H, Yang X, Gu S, Wang H, Ji L, Xu Z, Meng J.
PMID: 25435997
Oncol Lett. 2015 Jan;9(1):387-390. doi: 10.3892/ol.2014.2679. Epub 2014 Nov 06.

The aim of the present study was to explore the value of subcutaneous nephrovesical bypass (SNVB) for the treatment of ureteral obstruction due to pelvic metastatic disease. SNVB stents (n=30) were implanted in 24 patients with advanced metastatic disease...

Risk Factors of Hepatitis C Virus Infection in Drug Users From Eleven Methadone Maintenance Treatment Clinics in Xi'an, China.

Hepatitis monthly

Xiaoli W, Lirong W, Xueliang W, Jinsong L, Hengxin L, Wei J.
PMID: 25598787
Hepat Mon. 2014 Nov 23;14(11):e19601. doi: 10.5812/hepatmon.19601. eCollection 2014 Nov.

BACKGROUND: Hepatitis C virus (HCV) infection rates in drug users vary among different regions of China. Drug users who are unaware of their HCV serostatus tend to engage in more risky behaviors.OBJECTIVES: This prospective study aimed to assess risk...

Randomized spatial context for object search.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society

Jiang Y, Meng J, Yuan J, Luo J.
PMID: 25781874
IEEE Trans Image Process. 2015 Jun;24(6):1748-62. doi: 10.1109/TIP.2015.2405337. Epub 2015 Feb 24.

Searching visual objects in large image or video data sets is a challenging problem, because it requires efficient matching and accurate localization of query objects that often occupy a small part of an image. Although spatial context has been...

Correlative association of interleukin-6 with intima media thickness: a meta-analysis.

International journal of clinical and experimental medicine

Zhang B, Wang J, Xu Y, Zhou X, Liu J, Xu J, Li B, Zhi G.
PMID: 26064414
Int J Clin Exp Med. 2015 Mar 15;8(3):4731-43. eCollection 2015.

BACKGROUND: Involvement of inflammatory processes in the atherogenesis is now well-recognized. The present study examines the relationship between a proinflammatory cytokine, interleukin-6 (IL-6), and atherosclerosis by meta-analyzing the correlation coefficients between IL-6 and intima media thickness reported in the...

Synthesis of framework-substituted Fe-HMS and its catalytic performance for phenol hydroxylation.

Nanotechnology

Liu H, Lu G, Guo Y, Guo Y, Wang J.
PMID: 21727372
Nanotechnology. 2006 Feb 28;17(4):997-1003. doi: 10.1088/0957-4484/17/4/026. Epub 2006 Jan 30.

The iron-incorporated mesoporous silica material Fe-HMS was successfully synthesized at ambient temperature by using dodecylamine as the template agent, and it was characterized by XRD, SEM, FT-IR, UV-vis, ESR and N(2) adsorption measurements. Its catalytic performance was studied for...

Using microfluidic chip to form brain-derived neurotrophic factor concentration gradient for studying neuron axon guidance.

Biomicrofluidics

Huang H, Jiang L, Li S, Deng J, Li Y, Yao J, Li B, Zheng J.
PMID: 24660043
Biomicrofluidics. 2014 Feb 19;8(1):014108. doi: 10.1063/1.4864235. eCollection 2014 Jan.

Molecular gradients play a significant role in regulating biological and pathological processes. Although conventional gradient-generators have been used for studying chemotaxis and axon guidance, there are still many limitations, including the inability to maintain stable tempo-spatial gradients and the...

Dual Phase Synergy Enabled Large Elastic Strains of Nanoinclusions in a Dislocation Slip Matrix Composite.

Nano letters

Zhang J, Hao S, Jiang D, Huan Y, Cui L, Liu Y, Ren Y, Yang H.
PMID: 29714487
Nano Lett. 2018 May 09;18(5):2976-2983. doi: 10.1021/acs.nanolett.8b00427. Epub 2018 May 01.

Freestanding nanomaterials (such as nanowires, nanoribbons, and nanotubes) are known to exhibit ultralarge elastic strains and ultrahigh strengths. However, harnessing their superior intrinsic mechanical properties in bulk composites has proven to be difficult. A recent breakthrough has overcome this...

On the Q-switching bunch dynamics in the build-up of stretched-pulse mode-locking.

Optics express

Wang X, Ren X, Peng J, Shen X, Huang K, Yan M, Zeng H.
PMID: 30732307
Opt Express. 2019 Feb 04;27(3):2747-2753. doi: 10.1364/OE.27.002747.

In this paper, we experimentally investigate a rich set of Q-switching bunches in the build-up of stretched-pulse mode-locking of an erbium-doped fiber laser. Interestingly, regular clustering of periodic Q-switched mode-locking states is observed in the self-starting process. Moreover, with...

Showing 1 to 12 of 246 entries