Advanced search    

Search: authors:"Dandan Chen"

22 papers found.
Use AND, OR, NOT, +word, -word, "long phrase", (parentheses) to fine-tune your search.

Hierarchical Control of Drosophila Sleep, Courtship, and Feeding Behaviors by Male-Specific P1 Neurons

Animals choose among sleep, courtship, and feeding behaviors based on the integration of both external sensory cues and internal states; such choices are essential for survival and reproduction. These competing behaviors are closely related and controlled by distinct neural circuits, but whether they are also regulated by shared neural nodes is unclear. Here, we investigated how...

An isolable catenane consisting of two Möbius conjugated nanohoops

Besides its mathematical importance, the Möbius topology (twisted, single-sided strip) is intriguing at the molecular level, as it features structural elegance and distinct properties; however, it carries synthetic challenges. Although some Möbius-type molecules have been isolated by synthetic chemists accompanied by extensive computational studies, the design, preparation, and...

The impact of rainfall on the temporal and spatial distribution of taxi passengers

Zhang. Software: Nana Geng, Xuefeng Li. Visualization: Liangpeng Gao. Writing ± original draft: Dandan Chen. Writing ± review & editing: Dandan Chen. 14 / 16 15 / 16 1. Singhal A , Kamga C , Yazici

Fashionable styles and information sources: an exploratory study of Hangzhou, China

The exploratory study aims to examine Hangzhou fashion in the context of globalization and localization through in-depth interviews. Sixteen young females from Hangzhou were interviewed. In the 1990s young females from Hangzhou had a weak concept of fashionable style and they just had a preference for the feminine style, which is derived from a regional culture. In the 2010s...

Chinese-English subtitle translation from the Skopostheorie: A case study of the series of CCTV documentary “The Japanese Repatriation from the Huludao”

According to the theory of human action, Skopostheorie assigns the translation into the category of human communication activity with specific purposes. Therefore, subtitle translation, as one type of translation, also has its own purposes. The subtitle translation is characterized by instantaneity and popularity. Furthermore, the language of the subtitle translation must fulfill...

Overexpression of trefoil factor 3 (TFF3) contributes to the malignant progression in cervical cancer cells

Background There remains a great need for effective therapies for cervical cancers, the majority of which are aggressive leaving patients with poor prognosis. Methods and results Here, we identify a novel candidate therapeutic target, trefoil factor 3 (TFF3) which overexpressed in cervical cancer cells and was associated with reduced postoperative survival. Functional studies...

Visual Three-Dimensional Reconstruction of Aortic Dissection Based on Medical CT Images

With the rapid development of CT technology, especially the higher resolution of CT machine and a sharp increase in the amount of slices, to extract and three-dimensionally display aortic dissection from the huge medical image data became a challenging task. In this paper, active shape model combined with spatial continuity was adopted to realize automatic reconstruction of...

Visual Three-Dimensional Reconstruction of Aortic Dissection Based on Medical CT Images

With the rapid development of CT technology, especially the higher resolution of CT machine and a sharp increase in the amount of slices, to extract and three-dimensionally display aortic dissection from the huge medical image data became a challenging task. In this paper, active shape model combined with spatial continuity was adopted to realize automatic reconstruction of...

Robust Optimization on Regional WCO-for-Biodiesel Supply Chain under Supply and Demand Uncertainties

This paper aims to design a robust waste cooking oil- (WCO-) for-biodiesel supply chain under WCO supply and price as well as biodiesel demand and price uncertainties, so as to improve biorefineries’ ability to cope with the poor environment. A regional supply chain is firstly introduced based on the biggest WCO-for-biodiesel company in Changzhou, Jiangsu province, and it...

An Investigation on Tribological Properties and Lubrication Mechanism of Graphite Nanoparticles as Vegetable Based Oil Additive

This paper used graphite nanoparticles with the diameter of 35 and 80 nm and LB2000 vegetable based oil to prepare graphite oil-based nanofluids with different volume fractions by two-step method. The tribological properties of graphite nanoparticles as LB2000 vegetable based oil additive were investigated with a pin-on-disk friction and wear tester. Field emission scanning...

An Investigation on Tribological Properties and Lubrication Mechanism of Graphite Nanoparticles as Vegetable Based Oil Additive

This paper used graphite nanoparticles with the diameter of 35 and 80 nm and LB2000 vegetable based oil to prepare graphite oil-based nanofluids with different volume fractions by two-step method. The tribological properties of graphite nanoparticles as LB2000 vegetable based oil additive were investigated with a pin-on-disk friction and wear tester. Field emission scanning...

A New Method for the Analysis of Bacterial Endotoxins in Ultrapure Paraffin Oil

February 2014; Published 9 March 2014 Academic Editor: Yu-Ming Fan Copyright © 2014 Dandan Chen. This is an open access article distributed under the Creative Commons Attribution License, which permits

A New Method for the Analysis of Bacterial Endotoxins in Ultrapure Paraffin Oil

February 2014; Published 9 March 2014 Academic Editor: Yu-Ming Fan Copyright © 2014 Dandan Chen. This is an open access article distributed under the Creative Commons Attribution License, which permits

High throughput deep degradome sequencing reveals microRNAs and their targets in response to drought stress in mulberry (Morus alba)

MicroRNAs (miRNAs) play important regulatory roles by targeting mRNAs for cleavage or translational repression. Identification of miRNA targets is essential to better understanding the roles of miRNAs. miRNA targets have not been well characterized in mulberry (Morus alba). To anatomize miRNA guided gene regulation under drought stress, transcriptome-wide high throughput...

Interior Point Method for Solving Fuzzy Number Linear Programming Problems Using Linear Ranking Function

Recently, various methods have been developed for solving linear programming problems with fuzzy number, such as simplex method and dual simplex method. But their computational complexities are exponential, which is not satisfactory for solving large-scale fuzzy linear programming problems, especially in the engineering field. A new method which can solve large-scale fuzzy number...

Identification and Characterization of a New Erythromycin Biosynthetic Gene Cluster in Actinopolyspora erythraea YIM90600, a Novel Erythronolide-Producing Halophilic Actinomycete Isolated from Salt Field

Erythromycins (Ers) are clinically potent macrolide antibiotics in treating pathogenic bacterial infections. Microorganisms capable of producing Ers, represented by Saccharopolyspora erythraea, are mainly soil-dwelling actinomycetes. So far, Actinopolyspora erythraea YIM90600, a halophilic actinomycete isolated from Baicheng salt field, is the only known Er-producing extremophile...

Comparison of Algebraic Multigrid Preconditioners for Solving Helmholtz Equations

Technology of China, Chengdu, Sichuan 611731, China Received 6 December 2011; Revised 6 February 2012; Accepted 6 February 2012 Academic Editor: Edmond Chow Copyright © 2012 Dandan Chen et al. This is an

Comparison of Algebraic Multigrid Preconditioners for Solving Helmholtz Equations

Technology of China, Chengdu, Sichuan 611731, China Received 6 December 2011; Revised 6 February 2012; Accepted 6 February 2012 Academic Editor: Edmond Chow Copyright © 2012 Dandan Chen et al. This is

Comparison of Algebraic Multigrid Preconditioners for Solving Helmholtz Equations

Technology of China, Chengdu, Sichuan 611731, China Received 6 December 2011; Revised 6 February 2012; Accepted 6 February 2012 Academic Editor: Edmond Chow Copyright © 2012 Dandan Chen et al. This is

Salt Stress Encourages Proline Accumulation by Regulating Proline Biosynthesis and Degradation in Jerusalem Artichoke Plantlets

Proline accumulation is an important mechanism for osmotic regulation under salt stress. In this study, we evaluated proline accumulation profiles in roots, stems and leaves of Jerusalem artichoke (Helianthus tuberosus L.) plantlets under NaCl stress. We also examined HtP5CS, HtOAT and HtPDH enzyme activities and gene expression patterns of putative HtP5CS1, HtP5CS2, HtOAT...