检索结果-南通市图书馆

Scienti?c papers: Which type would you prefer?

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Medicine 2019年第2期17卷 77-79页

作者： Chun-song hu Jiangxi Academy of Medical Science Hospital of Nanchang University Nanchang University

It's very important to enhance the quality of scientific papers produced by postgraduates and scholars from academic institutions. To encourage their academic and professional development, these young scientists should be encouraged to compose nonresearch articles, in addition to original research articles,including short essays, perspectives and reviews.

关键词： Article type Postgraduates Scholars Scientific papers

Estimation of vehicle states and tire-road friction using parallel extended Kalman filtering

在线全文

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第6期12卷 446-452页

作者： Chang-fu ZONG Pan song Dan hu State Key Laboratory of Automotive Simulation and Control Jilin University Changchun 130025 China

A model-based estimator design and implementation is described in this paper to undertake combined estimation of vehicle states and tire-road friction *** estimator is designed based on a vehicle model with three degrees of freedom(3-DOF) and the dual extended Kalman filter(DEKF) technique is *** of the estimation is examined and validated by comparing the outputs of the estimator with the responses of the vehicle model in CarSim in three typical road adhesion conditions(high-friction,low-friction,and joint-friction roads).Simulation results demonstrate that the DEKF estimator algorithm designed is able to obtain vehicle states(e.g.,yaw rate and roll angle) as well as road friction coefficients with reasonable accuracy.

关键词： Vehicle dynamics State estimation and system identification Active safety and passive safety

Design and optimization of an integrated process for the purification of propylene oxide and the separation of propylene glycol by-product

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2022年第5期35卷 111-120页

作者： song hu Jinlong Li Qihua Wang Weisheng Yang State Key Laboratory of Green Chemical Engineering and Industrial Catalysis SINOPEC Shanghai Research Institute of petrochemical TechnologyShanghai 201208China School of Petrochemical Engineering Changzhou UniversityChangzhou 213164China

It is difficult to separate the methanol and hydrocarbons in the propylene oxide(PO)purification process due to their forming *** for this,a novel PO separation process,in that the deionized water is employed as extractant and 1,2-propylene glycol(MPG)that is formed from the PO hydrolysis reaction is recovered,is presented in this *** salient feature of this process is that both the non-catalyzed reactions of PO hydrolysis to form MPG and dipropylene glycol(DPG)are simultaneously considered and MPG by-product with high purity is obtained in virtue of the deionized water as reflux liquid and side take-off in MPG *** addition,the ionic liquid(IL)extractant is screened through the conductorlike screening model for segment activity coefficient(COSMO-SAC)and the comparisons of separation efficiency between the IL and normal octane(nC_(8))extractant for the separation of PO and 2-methylpentane are *** the non-random two-liquid(NRTL)thermodynamic model,the simulation and optimization design for the full flow sheet are performed and the effects of the key operation parameters such as solvent ratio,theoretical stages,feeding stage *** separation efficiency are detailedly *** results show that the mass purity and the mass yield of PO can be up to 99.99%and 99.0%,and the condenser duty,reboiler duty and PO loss in the process with IL extractant can be decreased by 69.66%,30.21%and 78.86%compared to ones with nC_(8).The total annual cost(TAC)calculation also suggests that the TAC would be significantly reduced if using IL in replace of nC_(8) for the investigated *** presented results would provide a useful guide for improving the quality of PO product and the economic efficiency of industrial plant.

关键词： Propylene oxide purification Ionic liquids Separation Extractive distillation Hydrolysis 1 2-propylene glycol

Payne Effect and Weak Overshoot in Rubber Nanocomposites

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2022年第1期40卷 85-92页

作者： Zhi-Yun Li Yi-hu song Qiang Zheng MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China

Payne effect and its associated weak overshoot are of importance for understanding and regulating the softening of rubber nanocomposites under large amplitude ***,Payne effect in diverse filled vulcanizates is investigated for generalizing the common *** curves of strain amplitude dependent storage modulus are created with respect to microscopic strain amplitude of the matrix,revealing a matrix-dominated elastic nonlinearity being independent of type and dispersity of filler,crosslinking density and sol fraction of matrix and filler-rubber interfacial ***,carbonaceous fillers with higher affinity to the rubber matrices yield lower strain amplification and higher overshoot behavior in comparison with siliceous *** investigation would be illuminating for preparing rubber nanocomposites with optimized reinforcement and softening performances.

关键词： Vulcanizate nanocomposites Payne effect Weak overshoot

Influence of Liquid Isoprene Rubber on Strain Softening of Carbon Black Filled Isoprene Rubber Nanocomposites

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2021年第7期39卷 887-895页

作者： Feng-Yi Hou Yi-hu song Qiang Zheng MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China

The reinforcement of rubbers by nanoparticles is always accompanied with enhanced dissipation of mechanical energy upon large *** for solving the contradiction between improving reinforcement and reducing energy dissipation for rubber nanocomposites have not been well *** carbon black(CB)filled isoprene rubber(IR)/liquid isoprene rubber(LR)blend nanocomposites with similar crosslink density(ve)are prepared and influence of LR on the strain softening behaviors including Payne effect under large amplitude shear deformation and Mullins effect under cyclic uniaxial deformation is *** introduction of LR could improve the frequency sensitivity of loss modulus and reduce critical strain amplitude for Payne effect and loss modulus at the low ***,tuning ve and LR content allows reducing mechanical hysteresis in Mullins effect without significant impact on the mechanical *** investigation is illuminating for manufacturing nanocomposite vulcanizates with balanced mechanical hysteresis and reinforcement effect.

关键词： Rubber nanocomposites Stress softening Mechanical hysteresis Liquid rubber

SEEDi^(1.0-3.0) strategies for major noncommunicable diseases in China

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Medicine 2017年第4期15卷 265-269页

作者： Chun-song hu Tengiz Tkebuchava Department of Cardiovascular Medicine Nanchang University Boston TransTec LLC

The purpose of this article is to briefly introduce the status and challenges of major noncommunicable diseases （mNCDs）, which include cardiovascular disease, diabetes and cancer, as well as related risk factors, such as environmental pollution, smoking, obesity and sleep disorders. ＂S-E-E-D＂ rules or the strategies of ＂S-E-E-D＂ intervention （SEEDi） consist of four core healthy elements： sleep, emotion, exercise and diet. The history of SEEDi1.0-3.0 is also introduced, which includes versions 1.0, 1.5, 2.0 and 3.0 of the program. These guidelines are suitable for prevention and control of mNCDs. Not only the ＂Healthy China＂ initiated in China＇s ＂13th Five-year Plan,＂ but also the ＂Healthy World＂ philosophy needs SEEDi1.0-3.0 strategies for control of mNCDs.

关键词： noncommunicable diseases cardiovascular disease diabetes mellitus cancer lifestyle

E-noise: An increasingly relevant health risk

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Medicine 2019年第5期17卷 311-314页

作者： Chun-song hu Tengiz Tkebuchava Jiangxi Academy of Medical Science Hospital of Nanchang UniversityNanchang UniversityNanchang 330006Jiangxi ProvinceChina oston TransTec LLCBostonMA 02459USA

This article briefly reviews and discusses the current status of major non-communicable diseases(m NCDs), definition of e-noise, its possible link as a risk factor for cardiovascular diseases and other m NCDs, and proposes possible mechanisms and hypotheses on that link, and how to control e-noise in the future. E-noise is defined as signal from electronic products and instruments that emit radiation and electromagnetic fields. It includes not only the acoustic but also non-acoustic noise. Just like road traffic and aircraft noises, e-noise may not only lead to hearing loss and health problems such as fatigue,stress, irritability, headache, and insomnia, but may also endanger cardiovascular health and result in hypertension, ischemic heart disease(myocardial infarction), arrhythmia(atrial fibrillation) and stroke;brain and metabolic problems such as obesity and diabetes;mental and cognitive impairment;as well as changing of humans’ long-evolved cortisol and circadian rhythms after long-term exposure. Even shortterm exposure to excessive e-noise may lead to heightened stress responses and low quality of life. In conclusion, e-noise is a potential danger in our world, and further studies are needed of its effects on mechanisms of aging, disease, and human health.

关键词： Environment E-noise Healthrisk Lifestyle Long-term exposure

Molecular Dynamics and Phase Behavior of Polystyrene/Poly(vinyl methyl ether) Blend in the Presence of Nanosilica

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2017年第12期35卷 1524-1539页

作者： Qi Chen 左敏 Yi-hu song Qiang Zheng Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University

The variation of phase morphology, critical temperature of demixing, and molecular dynamics for polystyrene/poly（vinyl methyl ether）（PS/PVME） blends induced by hydrophilic nanosilica（A200） or hydrophobic nanosilica（R974） was investigated. With the phase separation of blend matrix, A200 migrated into PVME-rich phase due to strong interaction between A200 and PVME, while R974 moved into PS-rich phase. The thermodynamic miscibility and concentration fluctuation during phase separation of blend matrix were remarkably retarded by A200 nanoparticles due to the surface adsorption of PVME on A200, verified by the correlation length ξ near the critical region from rheological measurement and the weakened increment of reversing heat capacity（ΔCp） during glass transition via modulated differential scanning calorimetry（MDSC）. The restricted chain diffusion induced by nanosilica still occurred despite no influence of A200 and R974 on the segmental dynamics of homogenous blend matrix. The interactions between nanosilica and polymer components could restrict the terminal relaxation of blend matrix and further manipulate their phase behavior.

关键词： Phase separation Nanoparticles Rheology Molecular dynamics

Rheological and Interfacial Properties of Colloidal Electrolytes

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2019年第10期37卷 1039-1044,I0006页

作者： Hong-Peng Han Yi-hu song Qiang Zheng Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University

Electric conductivity and rheological responses of colloidal electrolytes consisting of lithium bis(trifluoromethanesulfon)imide, polyethylene glycol(PEG) oligomer, and fumed silica have been investigated. Incorporating silica could improve ionic conductivity of the electrolytes at the same lithium/oxygen ratios. The colloidal electrolytes demonstrate a sol to gel transition with increasing silica content while they exhibit shear thickening behaviors during steady flow at intermediate range of strain rate. The presence of lithium salt, on the one hand, could lower the crystallinity of PEG or forbid the crystallization and on the other hand, interferes the chain adsorption on the surface of silica. Furthermore, lithium salt strongly retards the segmental relaxation of PEG in the colloidal electrolytes.

关键词： Colloidal electrolytes Rheology Silica Lithium salt