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75 papers found.
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Ecosystem service trade-offs upstream and downstream of a dam: a case study of the Danjiangkou dam, China

Studying the trade-offs and synergies between ecosystem services upstream and downstream of dams is of great importance because such studies can help guide the coordinated development of ecosystems. Taking the Danjiangkou dam as an example, we studied the trade-offs and synergies of ecosystem services in the river basin upstream and downstream of the dam. First, based on Costanza...

High Sensitive Methane Sensor With Temperature Compensation Based on Selectively Liquid-Infiltrated Photonic Crystal Fibers

A highly sensitive and temperature-compensated methane sensor based on a liquid-infiltrated photonic crystal fiber (PCF) is proposed. Two bigger holes near the core area are coated with a methane-sensitive compound film, and specific cladding air holes are infiltrated into the liquid material to form new defective channels. The proposed sensor can achieve accurate measurement of...

Multi-perspective analysis of vegetation cover changes and driving factors of long time series based on climate and terrain data in Hanjiang River Basin, China

The Hanjiang River Basin is the source area of the Middle Route Project of the South-to-North Water Diversion Project, and the vegetation coverage in this basin directly affects the quality of the ecological environment. This study is based on long time series of Moderate Resolution Imaging Spectroradiometer (MODIS) Normalized Difference Vegetation Index (NDVI) data synthesized...

Selective adipogenic differentiation of human periodontal ligament stem cells stimulated with high doses of glucose

induction group), OSH (high glucose osteogenic induction group). (TIF) Author Contributions Data curation: Yi Sun, Hai Liu. Methodology: Wei Wang, Jingmen Wang. Writing ? original draft: Chao Deng

Influence of Ca on mierostructure and corrosion resistance of Mg-14Li alloy

 DongXiao-bing LiBin-guo FuGuo-lu LiJin-hai Liu Research & Development First Online: 08 August 2018 Received: 21 April 2017 Accepted: 10 January 2018 6 Downloads Abstract In order to ... the corrosion resistance of the Mg-14Li alloy, and the influence of Ca was slighter than that of Cl-. Keywordsmagnesium lithium alloy Ca refine electrochemistry corrosion resistance  Jin-hai Liu Male

Generating a resonance-like structure in the reaction \(B_c\rightarrow B_s \pi \pi \)

We investigate the process \(B_c^+\rightarrow B_s^0\pi ^+\pi ^0\) via \(B\bar{K}^*\) rescattering. The kinematic conditions for triangle singularities are perfectly satisfied in the rescattering diagrams. A resonance-like structure around the \(B\bar{K}\) threshold, which we denote X(5777), is predicted to be present in the invariant mass distribution of \(B_s^0 \pi ^+\). Because...

Icotinib hydrochloride enhances chemo- and radiosensitivity by inhibiting EGFR signaling and attenuating RAD51 expression and function in Hela S3 cells

Icotinib hydrochloride enhances chemo- and radiosensitivity by inhibiting EGFR signaling and attenuating RAD51 expression and function in Hela S3 cells Xuanxuan Wang, Yanjun Gu, Hai Liu, Liming Shi ... Yanjun gu hai liu liming shi Xiaonan sun Department of radiation Oncology, sir run run shaw hospital, school of Medicine, Zhejiang University, hangzhou, china that occurs only in the late S and G2 phases

Correction of source-rock permeability measurements owing to slip flow and Knudsen diffusion: a method and its evaluation

Sun 1 Aramco Research Centers - Houston, Aramco Services Company , Houston, TX 77084 , USA 2 & Hui-Hai Liu Source-rock permeability is a key parameter that controls the gas production rate from

Spin-orbit coupling and electric-dipole spin resonance in a nanowire double quantum dot

We study the electric-dipole transitions for a single electron in a double quantum dot located in a semiconductor nanowire. Enabled by spin-orbit coupling (SOC), electric-dipole spin resonance (EDSR) for such an electron can be generated via two mechanisms: the SOC-induced intradot pseudospin states mixing and the interdot spin-flipped tunneling. The EDSR frequency and strength...

A full utilization of rice husk to evaluate phytochemical bioactivities and prepare cellulose nanocrystals

. Sun, J., Chu, Y., Xianzhong Wu, A. & Hai Liu, R. Antioxidant and Antiproliferative Activities of Common Fruits. Journal of Agricultural & Food Chemistry 50, 7449–7454 (2002). Article Google Scholar18 ... Hai Liu AuthorsSearch for Yue Gao in:Nature Research journals • PubMed • Google Scholar Search for Xinbo Guo in:Nature Research journals • PubMed • Google Scholar Search for Yu Liu in:Nature Research

Effects of austempering temperature on microstructure and surface residual stress of carbidic austempered ductile iron (CADI) grinding balls

code: A 0 0 Jin-hai Liu , Peng Xiong 1 Bin-guo Fu, Wei-ting Yang, Xue-bo Zhao, Zi-ang Han, and Guo-lu Li School of Materials Science and Engineering, Hebei University of Technology , Tianjin 300130

Microcavity electrodynamics of hybrid surface plasmon polariton modes in high-quality multilayer trench gratings

, Tongtong Wang, Zhenfeng Shen, Zhen Liu, Hai Liu, Jian Zhang, Zizheng Li, Yanchao Wang & Qiang LiUniversity of the Chinese Academy of Sciences, Beijing, 100039, ChinaXiaoyi Liu, Jinbo Gao, Jinsong Gao & Qiang ... • PubMed • Google Scholar Search for Hai Liu in:Nature Research journals • PubMed • Google Scholar Search for Jian Zhang in:Nature Research journals • PubMed • Google Scholar Search for Zizheng Li

Could the observation of X(5568) be a result of the near threshold rescattering effects?

We investigate the invariant mass distributions of \(B_s\pi \) via different rescattering processes. The triangle singularity which appears in the rescattering amplitude may simulate the resonance-like bump around 5568 MeV. However, because the scattering \(B_s^*\pi \rightarrow B_s\pi \) is supposed to be weak, if the pertinent background is much larger, it would be hard to...

Parallelizing Julia with a Non-Invasive DSL

Computational scientists often prototype software using productivity languages that offer high-level programming abstractions. When higher performance is needed, they are obliged to rewrite their code in a lower-level efficiency language. Different solutions have been proposed to address this trade-off between productivity and efficiency. One promising approach is to create...

Method of Quantitative Analysis for Multirobot Cooperative Hunting Behaviors

The kinematic behavior of mobile robots can be represented as functions of time. During the operation of a multirobot system, the orbit of a special robot is recorded. The embedding dimension and the delay time are chosen based on the correlation integral method. A chaotic attractor equivalent to the original system is reconstructed in phase space. The multirobot system can be...

Method of Quantitative Analysis for Multirobot Cooperative Hunting Behaviors

The kinematic behavior of mobile robots can be represented as functions of time. During the operation of a multirobot system, the orbit of a special robot is recorded. The embedding dimension and the delay time are chosen based on the correlation integral method. A chaotic attractor equivalent to the original system is reconstructed in phase space. The multirobot system can be...

Large area and broadband ultra-black absorber using microstructured aluminum doped silicon films

A large area and broadband ultra-black absorber based on microstructured aluminum (Al) doped silicon (Si) films prepared by a low-cost but very effective approach is presented. The average absorption of the absorber is greater than 99% within the wide range from 350 nm to 2000 nm, and its size reaches to 6 inches. We investigate the fabrication mechanism of the absorber and find...

The effect of carbamic acid, (1,2,3-thiadiazole-4-ylcarbonyl)-hexyl ester on Peronophythora litchii infection, quality and physiology of postharvest litchi fruits

Background Litchi (Litchi chinensis Sonn.) is a subtropical fruit with attractive characteristic of white to creamy semitranslucent flesh and red color in pericap, but it was easily subjected to the infection of Peronophythora litchii and lost its market values. Experiments were conducted to understand the effect of [Carbamic acid, (1,2,3-thiadiazole-4-ylcarbonyl)-hexyl ester...

Insights into the Action Mechanisms of Traditional Chinese Medicine in Osteoarthritis

Osteoarthritis (OA) is a chronic degenerative joint disease characterized by articular cartilage destruction, synovial inflammation, and osteophyte formation. No effective treatments are available. The current pharmacological medications such as nonsteroidal anti-inflammatory drugs (NSAIDs) and analgesics, accompanied by possible adverse effects, might ameliorate OA symptoms. But...