Tao Qin

Beijing Forestry University · School of Economics and Management

This study aimed to show the α-L-Hexaguluroic acid hexasodium salt (G6) protective effect against UVA-induced photoaging of human keratinocyte cells. We found that G6 localized to the mitochondria and improved mitochondrial functions. G6 increased respiratory chain complex activities, which led to increased cellular ATP content and NAD+/NADH ratio....

A through-mask electrochemical micromachining process with a foamed cathode (foamed-cathode through-mask electrochemical micromachining (TMEMM)) has recently been proposed involving micro-scale surface microstructures with a high geometric consistency that are fabricated on the curved-surface workpiece. In this paper, to make the foamed-cathode TME...

Adsorption by activated carbons (AC) is an effective option for phenolic wastewater treatment. Three commercial AC, including coal-derived granular activated carbons (GAC950), coal-derived powdered activated carbons (PAC800), and coconut shell-derived powdered activated carbons (PAC1000), were utilized as adsorbent to study its viability and effici...

A universal multi-parameter sensing scheme based on a self-interference micro-ring resonator (SIMRR) is proposed. Benefit from the special intensity sensing mechanism, the SIMRR allows multimode sensing in a wide range of wavelengths but immune from frequency noise. To process the multiple mode spectra that are dependent on multiple parameters, we...

To make better use of microwave radiance observations for data assimilation, removal of radiances contaminated by hydrometeor particles is one of the most important steps. Generally, all observations below the middle troposphere are eliminated before the analysis when precipitation is present. However, the altitude of the cloud top varies; when the...

This study aimed to investigate the effect of sesamol (SEM) on the protein kinase A (PKA) pathway in obesity-related hepatic steatosis treatment by using high-fat diet (HFD)-induced obese mice and a palmitic acid (PA)-treated HepG2 cell line. SEM reduced the body weight gain of obese mice and alleviated related metabolic disorders such as insulin r...

Different structures of cobalt and potassium modified molybdenum sulfide catalyst (KCoMoS2) were synthesized by hydrothermal synthesis, coprecipitation and reverse microemulsion methods. Nitrogen adsorption, XRD, TEM, XPS and HAADF-STEM-EDS techniques were used to characterize the catalysts structures. The results indicate that the molybdenum sulfi...

In this paper, the fretting wear properties of 20CrMnTi steel, a common material for a rocker bracket, was discussed for the first time after it was suffered carburizing treatment. Subsequently, the fretting wear behaviors of virgin, quenched, and carburized states were studied. The effect of loads (corresponding to different engine power output) a...

Highly efficient heat exchange tubes are special tube shapes that are widely used in heat exchangers to enhance heat transfer. In this study, experimental measurements and numerical simulations were carried out on two types of highly efficient heat exchange tubes, namely, spirally grooved tubes and converging–diverging tubes, to investigate changes...

The collaborative filtering algorithm based on the singular value decomposition plus plus (SVD++) model employs the linear interactions between the latent features of users and items to predict the rating in the recommendation systems. Aiming to further enrich the user model with explicit feedback, this paper proposes a user embedding model for rat...

The Coriolis Vibratory Gyroscopes are a type of sensors that measure angular velocities through the Coriolis effect. The resonator is the critical component of the CVGs, the vibrational characteristics of which, including the resonant frequency, frequency mismatch, Q factor, and Q factor asymmetry, have a great influence on the performance of CVG....

A portable capacitive sensor was designed to assess frying oil degradation by measuring the changes in electrical capacitance. An interdigital electrode (IDE) was designed to be implemented as the testing probe (as IDEs are resistive to parasitic capacitance), together with an adjacent capacitive chip Pcap01 and a further microprocessor STM32, whic...

Urbanization is widely assumed to degrade soil ecosystem services, but the changes in the urban soil phosphorus (P) status due to urbanization and the associated environmental implications have rarely been studied. The objective of this study was to investigate the P forms and associated soil properties in urban soils. Thirty sites were selected al...

High aspect ratio (HAR) ultrafine tapered holes (diameter ≤5 μm; AR ≥5) are the most important elements for some high-tech perforated metallic products, but they are very difficult to manufacture. Therefore, this paper proposes a nontraditional over-growth electroforming process. The formation mechanism of the HAR ultrafine tapered holes is investi...

In the long-term operation of hydropower reservoirs, operating rules have been used widely to decide reservoir operation because they can help operators make an approximately optimal decision with limited runoff information. However, the problems faced by reservoir managers is how to make and select an efficient operating rule properly. This study...

Cotton plays an important role in the economy of many countries. Many studies have revealed that numerous genes and various metabolic pathways are involved in anther development. In this research, we studied the differently expressed mRNA and lncRNA during the anther development of cotton between the cytoplasmic male sterility (CMS) line, C2P5A, an...

As the flagship species of biodiversity conservation in China, the giant panda has significant ecological protection value and plays an important demonstrative role for conservation. Sichuan Province has the largest area of giant panda habitat, making its protected areas the most important for the conservation of this species. However, the habitats...

Reservoir optimal operation (ROO) has always been a hot issue in the field of water resources management. Analysis of the relationship of optimal control water level and inflow is conducive to understanding and solving ROO under deterministic inflow conditions. The current research uses a fuzzy cognitive map (FCM) as a tool to effectively model com...

Micro/nano-manipulation is the fabrication of particular constructs on devices at the micro/nano-scale. Precise manipulation of microparticles is one of the key technological difficulties in manufacturing micro/nano-scale components. Based on scanning electron microscopy and nanomanipulator, this paper adopts a direct push method to operate randoml...

Low-temperature storage is a common strategy for preserving and transporting vegetables and fruits. However, many fruits are hypersensitive to chilling injury, including bananas. In the present study, storage conditions of 11 °C delayed the ripening of Fenjiao (Musa ABB Pisang Awak) banana, and the pulp could be softened after ethephon treatment. S...

We have previously reported that Trichoderma atroviride, an endophytic fungus isolated from S. miltiorrhiza, promotes S. miltiorrhiza hairy root growth and significantly stimulates the biosynthesis of tanshinones specifically the polysaccharide fraction (PSF). However, this study only focused exclusively on six metabolites whilst ignoring changes t...

Rational allocation of water resources is very essential to cope with water scarcity. The optimal allocation of limited water resources is required for various purposes to achieve sustainable development. The Awash River Basin is currently faced with a scarcity of water due to increasing demands, urbanization, irrigation expansion, and variability...

The floatability of scheelite and calcite in the presence of single depressant (SHMP or H3Cit) and mixed depressant (SHMP/H3Cit) was studied by microflotation experiments and artificial mixed mineral experiments. Solution chemical calculation, zeta potential tests, thermodynamic analysis and XPS analysis were used to explain the relevant depressive...

This paper investigates the streaming potentials’ behaviors when fluid flows through the micropores in bone. An experimental setup was developed for measuring the streaming potentials between two surfaces of a bone plate specimen. It was found that the streaming potentials measured increased almost linearly with time under a constant fluid pressure...

In order to solve the optimization problem of emergency logistics system, this paper provides an environmental protection point of view and combines with the overall optimization idea of emergency logistics system, where a fuzzy low-carbon open location-routing problem (FLCOLRP) model in emergency logistics is constructed with the multi-objective f...

The mlr-dependent biodegradation plays an essential role in the natural attenuation of microcystins (MCs) in eutrophic freshwater ecosystems. However, their evolutionary origin is still unclear due to the lack of mlr gene cluster sequences. In this study, a Sphingopyxis sp. strain X20 with high MC-degrading ability was isolated, and the mlrA gene a...

Lead refining dross containing plenty of tin and other heavy metals, such as lead and antimony, is considered a hazardous waste generated in large quantities in lead smelter plants. In this study, calcium stannate was synthesized from lead refining dross using sodium carbonate roasting and alkaline leaching followed by precipitation with CaO. The e...

The lack of effective farmer demand is a major factor that restricts the development of China's forest insurance. To solve this problem, this study uses a Logit model to conduct an empirical analysis of relevant factors in the farmers’ demand for forest insurance, based on field survey data of Lin’an County, Zhejiang Province. The results show that...

In forest insurance policy, coverage level and premium subsidy are two important factors that affect farmers’ decision to be insured. This paper uses data from a survey of farmers in Hunan Province of China. First, a single-bounded dichotomous-choice valuation method is used to estimate the average amount that the farmers are willing to pay (WTP) f...

Great importance has been attached to the “Agriculture-Rural-Farmer” issue by the Communist Party of China (CPC) Central Committee and the State Council of China. In recent years, a series of agricultural supporting subsidy policies, such as direct subsidies to grain, seed, material, and machinery purchases have been enforced, and these policies ha...

An untreated sewage source heat pump system directly makes use of the urban raw sewage instead of that treated by a sewage plant. At present In China, most systems adopt the indirect mode for avoiding the harmful effect of the sewage on the heat pump unit. In this article a direct-mode untreated sewage source heat pump system, which shows less theo...

To enhance soil management of Malus hupehensis orchards, we investigated the effects of maize residue (MR) and cellulose-decomposing bacteria on soil microbial properties, soil organic fractions, and growth of 1-year-old potted M. hupehensis Rehd. seedlings. Potted soil was treated with MR, microbial inocula (MI) of Bacillus cereus (MI), MR + MI, a...

The influence of biomass gasification gas and its components on homogeneous N2O decomposition was investigated in a lab-scale vertical fluidized bed at 900°C in this article. The results indicated that thermal decomposition contributed a large portion of N2O reduction. In the absence of oxygen, the N2O decomposition was increased with the rising of...

As the collective forestry property system in China has developed in recent years, the difficulty faced by forestry households (the main managers of Chinese forests) in securing loans has received extensive attention. To address this problem, we should follow the bottom-up principle and undertake effective measures based on a clear understanding of...

Convective cell detection is a critical step for tracking and forecasting of Mesoscale Convective Systems from geostationary satellite infrared (IR) data. Conventional threshold methods for identifying convective cell depend on the choice of threshold. Adjacent convective cells cannot be well distinguished because of the influence of anvil cloud. T...

BACKGROUND: Since the introduction of newer, more potent adenosine diphosphate (ADP) receptor inhibitors (ticagrelor, prasugrel), ischemic outcomes and bleeding risks of Canadian patients with myocardial infarction (MI) undergoing percutaneous coronary intervention (PCI) in routine practice have not been fully characterized. METHODS: COAPT is a pr...

The Eu, Ce, Agcodoped zeolite phosphor was prepared via ionsexchanged method combined with subsequently calcining. The effects of multiions introducing on the structure and optical properties of zeolite based phosphors were investigated. The results showed that Ag, Eucodoped zeolite based powder presented enhanced red emission intensity. Eu, Cecodo...

The JAK2 V617F mutation has been observed in patients with Philadelphia chromosomenegative myeloproliferative neoplasms (PhMPNs), including polycythemia vera, essential thrombocythemia and idiopathic myelofibrosis. This mutation has also been observed in a small number of other myeloid malignancies, such as acute myeloid leukemia, chronic myeloid l...

The northwestern Pacific Ocean is a complex region with significant biological spatial variations on a seasonal timescale. To investigate the joint variation patterns on both seasonal and interannual timescales, a season-reliant empirical orthogonal function (S-EOF) analysis was applied to seasonal mean chlorophyll-a concentration (chl-a) anomalies...

In order to prevent the spontaneous combustion of coal efficaciously, a new kind of compound material of multiphase foamed gel is obtained, which is composed of fly ash, foaming agent, thickener, crosslinker, and nitrogen and formed by physical and mechanical stirring. It makes use of the all-around capability of gel, foam, grouting, and inhibitor...

The geological record of the Neoproterozoic to early Palaeozoic Proto-Tethyan Ocean in Southeast Asia is not clear. To better constrain the evolution of the Proto-Tethys, we present new geochronology, geochemistry, and petrology of the late Cambrian to Ordovician Pinghe pluton monzogranite from the Baoshan block, western Yunnan, southwest China. La...

This article empirically tests the ‘too non-traditional to fail’ argument by exploring the determinants of systemic risk for the BRICs banks. The argument is found not applicable for the BRICs banks, since the systemic risk is merely determined by balance-sheet characteristics, rather than non-traditional activities such as interbank exposures and...

The goal of this paper is to undertake a detailed first principle calculation of the structural, electronic and optical properties of Sn1−xSbxO2. The results show that the stability of Sn1−xSbxO2 in the full range of Sb content points to the probability of a continuous solid solution, where the increasing Sb content leads to volume expansion with d...

Using long-lived Qilian juniper (Sabina przewalskii Kom.) in the middle Qilian Mountains, the temperature variations in the last 1000 yr were reconstructed. We find that the annual growth ring width and d 13 C series mainly reflect variations in regional temperature. Except in May, warmer temperatures indicate greater growth over the period from De...

A 2650-year (BC665-AD1985) warm season (MJJA: May, June, July, August) temperature reconstruction is derived from a correlation between thickness variations in annual layers of a stalagmite from Shihua Cave, Beijing, China and instrumental meteorological records. Observations of soil CO2 and drip water suggest that the temperature signal is amplifi...

Single-stranded RNA and DNA oligonucleotides may be useful as radiopharmaceuticals for antisense and other in vivo applications if convenient methods for stably attaching radionuclides such as 99mTc can be developed. The c-myc oncogene works in cooperation with other oncogenes in a variety of malignant tumors. The concentration of c-myc messenger R...

University Microfilms order no. UMI00310798. Thesis (Ph. D.)--University of British Columbia, 1990. Includes bibliographical references.

The information in museum specimen labels is not well recognized and used. The reason is mainly because this information is not part of the information retrieval systems. It is very expensive to have human to hand input the data to the system. We are using machine learning tools to automatically extract Darwin Core (DwC) and other metadata from the...

Taxonomic Name Recognition (TNR) algorithm – identifying a text string as a taxonomic name or not and recognizing the boundaries of the name – is very important in BHL digitization project in determining whether the users/researchers could find the materials they want efficiently. The BHL has incorporated TaxonFinder, a taxonomic name finding algor...

Printout. Thesis (Ph. D.)--University of Illinois at Urbana-Champaign, 1992. Vita. On t.p. "36" is superscript. Includes bibliographical references. Available on microfilm from University Microfilms.

Thesis (Ph. D.)--Boston University, 1998. Vita. Includes bibliographical references (leaves 148-159).

Used vulcanized rubber tires have caused serious trouble worldwide. Current disposal and recycling methods all have undesirable side effects, and they generally do not produce maximum benefits. A thermocatalytic process using aluminum chloride as the main catalyst was demonstrated previously from 1992 to 1995 in our laboratory to convert used rubbe...

Thesis (M.Sc.)--University of Guelph, 2005. Includes bibliographical references.

Thesis (M.Eng.)--Carleton University, 2004. Includes bibliographical references.

Thesis (Ph. D.)--University of Texas at Austin, 2000. Vita. Includes bibliographical references (leaves 144-155).

University Microfilms order no. UMI00318812. Thesis (M. Sc.)--University of Alberta, 1991. Includes bibliographical references.

Résumé additionnel en français. Thèse (M. Sc.)--Université de Montréal, 1996. "Mémoire présenté à la Faculté des études supérieures en vue de l'obtention du grade de Maître ès sciences (M. Sc.) en biologie moléculaire."

Printout. Thesis (Ph. D.)--University of Illinois at Urbana-Champaign, 2004. Vita. Includes bibliographical references (leaves 124-138).

Thesis (M. Sc.)--University of Windsor, 1998. Includes bibliographical references.

Vibrational analysis of polyatomic molecules requires tools with the capability to construct the system and display the normal modes. Mini-Lab, developed in this thesis work, is a 3D visualization tool and vibration analyzer that serves both educational and research needs. The goal is to help the user visualize the atoms and bonds, compute the norm...

"Graduate Program in Cell and Developmental Biology." Includes abstract. Thesis (M.S.)--Rutgers University and University of Medicine and Dentistry of New Jersey, 1998. Includes bibliographical references (leaves 59-63).

Written for the Dept. of Educational Psychology and Counselling. Thesis (M.A.). Bibliography: leaves 62-67.

Thesis (Ph. D.)--School of Electrical and Computer Engineering, Georgia Institute of Technology, 2001. Directed by Monson H. Hayes, III. Vita. Includes bibliographical references (leaves 118-123).

Thesis (Ph. D.)--Columbia University, 2000. Includes bibliographical references (leaves 164-184). Department: Center of Neurobiology and Behavior.

Thesis (Ph. D.)--Columbia University, 1998. Includes bibliographical references (leaves 96-102). Department: Mechanical Engineering.