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Recycling and remanufacturing logistics network affects the scale and efficiency of sustainable development of the manufacturing industry. This paper designs a multi-level closed-loop supply chain network with supplier, manufacturer, recycling centers, preprocessing centers and processing centers. An improved nonlinear grey Bernoulli-Markov model is developed to predict the recycled quantity. The capacity of recycling center and preprocessing center, the demand of manufacturer and the inventory of preprocessing center are formulated as constraints. A dynamic multi-objective model, which is based on scalable logistics facilities, takes into account the minimization of system operating costs and minimization of time costs related to the out-of-stock and inventory in each operating cycle. This model realizes the dynamic selection of the scale of facilities. Objective weighted genetic algorithm is adopted to transform multi-objective optimization problem into a single-objective. A scrap automobile products calculations are analyzed to verify the effectiveness and practicability of this model. [ABSTRACT FROM AUTHOR]

Considering the quality of recycled products, we develop a game model of a multi-level competitive recycling and remanufacturing supply chain with two manufacturers and multiple recyclers. Being focus on two mainstream game models, namely the manufacturer-recycler cooperation game model and the manufacturer-led Stackelberg game model, we explore the connection between optimal pricing decisions and performance levels of the supply chain members. Although researches indicate that the quality of recycled products will not affect the pricing decisions in the forward supply chain, it is positively related to the recycling price, the repurchase price, and the overall profit in the reverse supply chain, and the intensity of competition among manufacturers or recycled products will affect the pricing decisions and the performance levels of the two models. In the manufacturer-led Stackelberg game model, the supply chain does not reach the Pareto optimum, which uses the recycling cost sharing contract to achieve the coordination. Afterwards, the profits of the two manufacturers and multiple recyclers in the supply chain are increased, and the overall profit of the supply chain system is higher than that of the manufacturer-led Stackelberg game model. Finally, numerical analysis is conducted to verify the proposed coordination mechanism and its effectiveness. [ABSTRACT FROM AUTHOR]

Remanufacturing has become an important way to realize sustainable development strategy. For remanufacturing closed-loop supply chain under different circumstances, many factors are considered, such as consumers' different preferences for the purchase and payment of remanufactured products and the quality of recycled products. In this study, three models are presented for supply chain system, including a manufacturer lead and a retailer recycle. While nongovernment participation and non-supply-chain coordination are considered in model I, model II has government participation but non-supply-chain coordination, and model III has both government participation and supply chain coordination. The equilibrium decisions are derived for each model using the game-theoretic approach. The study found that consumers' preferences affect the pricing decisions of remanufactured products. When consumers' willingness to buy and pay for remanufactured products is close to that of new products, the total profit of the supply chain will significantly increase; the quality of recycled products will also influence the pricing decisions of new/remanufactured products, which in turn will affect the market demand for products. Government participation is conducive to encouraging manufacturer, retailer, and consumers to actively participate in the recycling and remanufacturing activities of used products. Supply chain coordination contracts can further enhance the role of the consumer market and promote the implementation of government policies. Under certain conditions, revenue sharing contract coordination can significantly increase the total profit of the supply chain system. The research conclusions have certain reference value for the coordination among the nodes of the remanufacturing supply chain and the formulation of policies with government participation. [ABSTRACT FROM AUTHOR]

LiNixCoyMn1−x−yO2 (x ≥ 0.6, NCM) has attracted much attention due to its high specific capacity and energy density. However, capacity attenuation caused by Li+/Ni2+ mixing and structural instability inhibit its development and application. In order to solve these problems, we report a simple method to synthesize NCM cathodes via a one-step Ce4+-doping and CeO2-coating technique, which can reduce the degree of Li+/Ni2+ mixing and improve the structural stability. The Ce4+-doping not only effectively reduces the degree of Li+/Ni2+ mixing, but also enhances the (001) interplanar distance of NCM and improves Li+ diffusion. Furthermore, the CeO2-coating can reduce the direct contact between the NCM particles and electrolyte, which can reduce the harmful interface reaction, thus making the impedance increase more slowly. The Ce4+-doping and CeO2-coating of NCM particles led to a capacity retention of 96.3% at 1C (1C = 280 mA g−1) after 100 cycles. Therefore, the synthesis of NCM cathodes via a one-step Ce4+-doping and CeO2-coating technique is a superb way to improve the electrochemical properties of the NCM cathode in lithium-ion batteries. [ABSTRACT FROM AUTHOR]

Inflammation plays an important role in stroke. Many inflammatory markers in peripheral blood are proved to be associated with stroke severity or prognosis. But few comprehensive models or scales to evaluate the severity of stroke have been reported. Systemic immune-inflammation index (SII) and platelet-albumin-bilirubin (PALBI) grade as new markers of inflammation have shown their positive association with liver cancer. The relation between SII, or PALBI and stroke remains uncertain. To investigate the relationship between SII, PALBI grade and stroke severity. Patients with ischemic stroke with hospital admission <24 h after symptom onset were prospectively included in a stroke registry. Demographic, clinical, and laboratory data were collected immediately after admission in all patients. The National Institutes of Health Stroke Scale (NIHSS) was used to assess stroke severity upon admission. Minor stroke was defined as NIHSS score < =5, moderate-to-severe stroke as NIHSS score >5. SII, calculated as platelet × neutrophil/lymphocyte was divided into four groups according to interquartile range: lowest SII (SII < 353.9 × 109/L), low SII (353.9–532.8 × 109/L), high SII (532.8–783.9 × 109/L), and highest SII (>783.9 × 109/L) group. A total of 362 patients with ischemic stroke were included, and between minor and moderate-to-severe stroke significant difference was found in SII (p < 0.0001), NLR (p < 0.0001), and PLR (p = 0.001), respectively. After multivariate regression analyses, SII groups (Odd ratio = 1.351, 95% confidence interval 1.084–1.684, p = 0.007) not PALBI was an independent risk factor for stroke severity. We found that SII but not PALBI, which both are markers of inflammation, was independently associated with stroke severity. [ABSTRACT FROM AUTHOR]

Currently, most high-performance tributyltin (TBT)-free antifouling paints contain cuprous oxide (Cu2O) in their formulations, leading to a serious challenge to the marine environment and ecosystem. In this study, non-metal acrylate boron polymers (ABPs) were synthesized using acrylate acid polymers (AAPs) as the backbone and a pyridine-phenyl borane compound as the side chain with hydrolyzable functional groups. The antifouling mechanism of ABPs researched by XPS and EDS indicated that the antifouling performance of ABPs was realized by the hydrolysis of hydrophobic diphenyl borane pyridine side groups. The results of diatom anti-setting test showed that fewer or no algae cells were attached on the surfaces of ABPs with higher contents of hydrophobic diphenyl borane pyridine side groups. The growth rates of algae suspension solutions containing ABPs were close to that of the blank solution without ABPs. Antifouling paints made of ABPs showed excellent antifouling performances in the Yellow Sea of China. This study provides new insights into the development of ABPs with desirable antifouling properties and environmental friendliness. [ABSTRACT FROM AUTHOR]

Emphasis is placed on the performance of a two-stage pump equipped with an eroded impeller. Non-contact reverse engineering technique is utilized to acquire the point data constituting the three-dimensional geometrical model of the eroded impeller. With computational fluid dynamics, both the operation performance of the pump and flow patterns adjacent to the eroded blade surface are obtained. For comparison, the corresponding undamaged impeller is investigated as well. Preferable fidelity of the approach of constructing geometrical model of the damaged impeller is substantiated. The mechanism underlying performance degradation of the pump with the eroded impeller is evidenced. Local flow patterns near the eroded area are featured by explicit irregularity. Furthermore, between the defective and the undamaged pumps, disparity in positions where cavitation occurs is negligible. [ABSTRACT FROM AUTHOR]

This paper firstly analyzes the main problems existing in operation process of the desulfurization and decarbonization device with capacity of 4×106 m³/d in the first purification plant in Changqing Oilfield Company. Then it describes the newly installed high efficiency fine filter and improvement measures of overall purification of amine solution in detail. Finally it evaluates the transformation effect. [ABSTRACT FROM AUTHOR]

A binuclear terbium(III) complex of N- (2-pyridinyl)ketoacetamide (HL) was synthesized and its crystal structure determined. Each terbium(III) binds to one N , O -bidentate HL, one O , O -bidentate L and two N ,μ- O , O -tridentate bridging L ligands; the coordination polyhedron is a distorted square antiprism. The pyridine N and keto O atoms of the binucleating ligand are coordinated to each Tb with the amide O acting as a bridging atom. The adjacent [Tb 2 (HL) 2 L 4 ] 2+ units are bridged by double C(R)NH…ONO 2 …HN(R)C hydrogen bonds to form an infinite 1-D chain, and a 2-D layer structure results from a rare near face-to-face π,π-stacking interaction between the pyridine rings of the adjacent chains. The crystal structure analysis reveals that the ligands completely shield the Ln(III) ions. Excited by the absorption band at 370 nm, the Tb(III) complex displays characteristic metal-centered fluorescence while the ligand fluorescence is completely quenched, showing that efficient ligand-to-metal energy transfer (antenna effect) occurs. [ABSTRACT FROM AUTHOR]

We report on the growth and structural, electrical and magnetotransport characteristics of epitaxial manganese perovskite (Pr1−xSrx)yMnO3−δ (PSMO) thin films by oxygen plasma assisted molecular beam epitaxy (MBE). Special attention was given to the non-stoichiometric phase, which exhibits interesting properties such as different phase transition temperatures and marked low field magnetoresistance. Under appropriate growth conditions, 2D step-flow growth mode has been realized with super smooth film surfaces. The structure characterization and magnetoresistance properties were studied and analyzed. [Copyright &y& Elsevier]

Spinal medical procedures following Surgical Site Infection (SSI) dull and the gloomy difficult afraid tremendous amount of money. SSI is lower than the spine medical procedures can be shallow, injured or wasteful description profoundly located reborn wound. Staphylococcus aureus is still an essential causal expert. Most SSIs have diabetes, smoking, steroids, and bind around available, certainly in advance to increase the risk by risk factors. The internal risk factors are not negligible unexpected ways, but various types, embedded applications, and traditional, steady invasion. A high level of suspicion analysis can advance and clear. Appropriate management is essential to carefully debridement the incidence of in-depth, detailed parts of the next phase of the disease since the late distinguished. Although inactivation and necrotic tissue, biofilm clings well to eliminate external expansion insert resection. The necessary conclusion is made all the hurt patients, maintaining close channels to attract up to no water system one day—spinal contamination after treatment. After a detailed examination of essential articles under excess, the photos are also included. [ABSTRACT FROM AUTHOR]

Hospital embedded system has put the hospital into a giant computer has Problem is, the burden of infectious diseases is relatively large, resistant infections and patients is particularly acute in developing countries, or have access to, generally than the first stage has a complex regimen, expensive it is low at line drugs likely to be able to afford to buy a second line treatments such as bone joint drug infection find and classification process such unsanitary, supply of unreliable water, embedded system and analysis presence of ongoing deterioration factors such as increased immune compromised number of patients due to the prevalence of drug infection further diffusion of resistant pathogens easily can increase the burden of antimicrobial resistance by making it discussed the causes and burden of drug-resistant, to evaluate the resistance problem intervention at the address developing countries. A strategy based on the rationale that local antibiotics released from bone cement or other carriers establish a second antibacterial frontline in and around the prosthesis is considered complementary to the administration of systemic antibiotics. Occur through a wireless network. To generate historical reports in MS Excel format that can be referenced by a physician. [ABSTRACT FROM AUTHOR]

IOT test this large donor control engineering data can relieve postoperative pain is discussed. One human operation, closed-loop, postoperative analgesic things large data system is designed to alleviate chronic pain. In this system the need of pain relief, when the patient presses the button. Computer interface buttons, the patient's IOT large data after pump. Patients with pain models have been developed to describe the kinetics of chronic pain in people's physiological and psychological reactions. Further including analgesic pharmacokinetic model. Pain model parameters have been adjusted, so that large data things validated self-management of pain behavior mimics a real button, presses the record. Unfortunately, if the adhesion is removed, the inflammation process begins; it is the foundation of a new adhesion causes, creating a vicious cycle difficult to break. Is achieved by electrical stimulation therapy of the small intestine contraction is applied. The results have not been entirely successful, it does not complete the verification of transcutaneous electrical nerve stimulation. However, this idea, a new method is reliable become the treatment of adhesive intestinal obstruction. Effective use of long things big data, as of this site, are, first aid and coherent knowledge of post-operative care, and people to help taking the right medicine for the patient, such research index regret believe that to reduce the occurrence of cans distinguish the analgesic efficacy of the use of different large amounts and compositions of the networking data six hundred and seventy and 9 vertical abdomen, spine and limbs procedures. [ABSTRACT FROM AUTHOR]