bluuebunny/crossref_metadata_2025_split huggingface dataset:
Flow and heat transfer past a permeable stretching/shrinking sheet in Cu−Al2O3/water hybrid nanofluid
Authors: Yahaya Rusya Iryanti , Arifin Norihan M. , Nazar Roslinda , Pop Ioan 
Published: September 2019

Purpose
The purpose of this paper is to study the flow and heat transfer of a hybrid nanofluid, Cu–Al2O3/water, past a permeable stretching/shrinking sheet. The effects of Brownian motion and thermophoresis are considered here.

Design/methodology/approach
Similarity transformations are used to reduce the governing partial differential equations to a system of ordinary (similarity) differential equations. A MATLAB solver called the bvp4c is then used to compute the numerical solutions of equations (12) to (14) subject to the boundary conditions of equation (15). Then, the effects of various physical parameters on the flow and thermal fields of the hybrid nanofluid are analyzed.

Findings
Multiple (dual) solutions are found for the basic boundary layer equations. A stability analysis is performed to see which solutions are stable and, therefore, applicable in practice and which are not stable. Besides that, a comparison is made between the hybrid nanofluid and a traditional nanofluid, Cu/water. The skin friction coefficient and Nusselt number of the hybrid nanofluid are found to be greater than that of the other nanofluid. Thus, the hybrid nanofluid has a higher heat transfer rate than the other nanofluid. However, the increase in the shrinking parameter reduces the velocity of the hybrid nanofluid.

Originality/value
The present results are original and new for the study of the flow and heat transfer past a permeable stretching/shrinking sheet in Cu–Al2O3/water hybrid nanofluid.
Numerical simulation of the fractional Lienard’s equation
Authors: Alchikh Razan , Khuri Suheil 
Published: September 2019

Purpose
The purpose of this paper is to apply an efficient semi-analytical method for the approximate solution of Lienard’s equation of fractional order.

Design/methodology/approach
A Laplace decomposition method (LDM) is implemented for the nonlinear fractional Lienard’s equation that is complemented with initial conditions. The nonlinear term is decomposed and then a recursive algorithm is constructed for the determination of the proposed infinite series solution.

Findings
A number of examples are tested to explicate the efficiency of the proposed technique. The results confirm that this approach is convergent and highly accurate by using only few iterations of the proposed scheme.

Originality/value
The approach is original and is of value because it is the first time that this approach is used successfully to tackle fractional differential equations, which are of great interest for authors in the recent years.
Lagrange crisis and generalized variational principle for 3D unsteady flow
Authors: He Ji-Huan 
Published: September 2019

Purpose
A three-dimensional (3D) unsteady potential flow might admit a variational principle. The purpose of this paper is to adopt a semi-inverse method to search for the variational formulation from the governing equations.

Design/methodology/approach
A suitable trial functional with a possible unknown function is constructed, and the identification of the unknown function is given in detail. The Lagrange multiplier method is used to establish a generalized variational principle, but in vain.

Findings
Some new variational principles are obtained, and the semi-inverse method can easily overcome the Lagrange crisis.

Practical implications
The semi-inverse method sheds a promising light on variational theory, and it can replace the Lagrange multiplier method for the establishment of a generalized variational principle. It can be used for the establishment of a variational principle for fractal and fractional calculus.

Originality/value
This paper establishes some new variational principles for the 3D unsteady flow and suggests an effective method to eliminate the Lagrange crisis.
High-temperature tribological behavior of Mo and BaF2 added Cr3C2-NiCr matrix composite
Authors: Zhao Hailong , Luo Lirong , Guo Fangwei , Zhao Xiaofeng , Xiao Ping 
Published: September 2019

Purpose
The purpose of this paper is to investigate the tribological performance of Cr3C2–NiCr–Mo–BaF2 composite sliding against a Si3N4 ball at high temperatures.

Design/methodology/approach
A Cr3C2–NiCr composite and a Cr3C2–NiCr–Mo–BaF2 composite were prepared using spark plasma sintering. Tribological properties of the composites were investigated using a ball-on-disk type tribotester. The relationships among the microstructure, wear mechanism and tribological performance were determined by analyzing the wear track morphologies and the glaze layer’s phase composition.

Findings
The wear rate of the Cr3C2–NiCr–Mo–BaF2 composite was approximately one order of magnitude lower than that of the Cr3C2–NiCr composite from 700°C to 900°C when sliding against a Si3N4 ball. The favorable tribological performance of the Cr3C2–NiCr–Mo–BaF2 composite at high temperatures results from the synergistic lubrication of MoOx, BaF2 and BaMoO4.

Originality/value
This paper reports a new Cr3C2–NiCr matrix self-lubricating composite with better tribological properties than Cr3C2–NiCr composite at temperatures up to 900°C through Mo and BaF2 addition.
Stiffness model of fixed joint considering self-affinity and elastoplasticity of asperities
Authors: Chen Hongxu , Yin Qin , Dong Guanhua , Xie Luofeng , Yin Guofu 
Published: September 2019

Purpose
The purpose of this paper is to establish a stiffness model of fixed joint considering self-affinity and elastoplasticity of asperities.

Design/methodology/approach
The proposed model considers that asperities of different scales are interrelated rather than independent. For elastoplastic contact, a spring-damper model and an elastic deformation ratio function were proposed to calculate the contact stiffness of asperities.

Findings
A revised fractal asperity model was proposed to calculate the contact stiffness of fixed joint, the impacts of the fractal dimension, the fractal roughness parameter and the Meyer index on the contact stiffness were discussed, and the present experimental results and the Jiang’s experimental results showed that the stiffness can be well predicted by proposed model.

Originality/value
The contradiction between the Majumdar and Bhushan model and the Morag and Etsion model can be well explained by considering the interaction among asperities of different scales. For elastoplastic contact, elastic deformation ratio should be considered, and the stiffness of asperities increases first and then decreases with the increasing of interference.
The effect of lubricant viscosity model with improver on friction and lubrication of piston skirt-cylinder liner conjunction
Authors: Xin Gu , Liu Xiao-Ri , Cheng Dong-Kang , Zheng Qing-Ping , Li Meng-Han , Sun Nan-Nan , Min Chun-Hua 
Published: September 2019

Purpose
This paper aims to investigate the effect of lubricant viscosity model with improver on friction and lubrication of piston skirt-cylinder liner conjunction.

Design/methodology/approach
A dynamic calculation model is established for the piston skirt-cylinder liner conjunction of a heavy-duty commercial diesel engine, to explore the effects of two kinds of lube oil viscosity models named after polyalkyle-metacrylate-1 (PAMA1) and styrene-isoprene-copolymer (SICP) improvers on the maximum oil film viscosity, the minimum oil film thickness, the peak oil film pressure, the maximum shear rate, the friction force and the total friction power loss.

Findings
The variation trends with the crank angle of the above parameters are not changed with the difference of improvers, while obvious numerical differences are found except the maximum oil film pressure. The minimum oil film thickness and maximum shear rate of PAMA1 are larger than that of SICP, the maximum oil film viscosity of SICP is larger than that of PAMA1, which indicates that the shear-thinning effect of PAMA1 is greater, the maximum friction force on the piston of SICP is larger than that of PAMA1, and the total friction power consumption is also larger, the average friction power consumptions of SICP and PAMA1 are 385.4 and 262.8 W, respectively, with the relative difference of 31.8 per cent.

Originality/value
The influence of different lubricating oil additive models on the lubrication and friction of piston skirt-cylinder liner conjunction is simulated and analyzed.
Influence of structural parameters of friction pair on oil temperature rise in hydro-viscous clutch
Authors: Li Zhibao , Xie Fangwei , Sun Junyu , Zhu Jie , Zheng Xudong , Guo Xinjian , Wang Yun , Hua Yinqun 
Published: September 2019

Purpose
The purpose of this paper is to study the temperature characteristics of hydro-viscous clutch with different structure of friction disks and obtain the distribution of film temperature.

Design/methodology/approach
The mathematical model of oil film between friction disks with radial grooves is established. Based on the flow rate equation, the temperature rise equation of oil film is deduced. Considering two-phase flow, the temperature distribution in the oil shear stage and the effects of the ratio of inner radius to outer radius on film temperature rise is studied by using computational fluid dynamics (CFD) technology.

Findings
The results show that when input speed is constant, the increase in the ratio of inner to outer radius leads to an increase in the peak temperature and the decrease in the ratio results in a larger increasing rate of temperature.

Originality/value
These results are of interest for the study of hydro-viscous drive and its applications. This study can also provide a theoretical basis for the mechanism of temperature rise by considering the effect of two-phase flow.
Experimental and numerical investigation of the effect of pre-existing utility tunnel on the bearing capacity of shallow footing in sandy soils
Authors: Malhotra Monica , Sahu Vaishali , Srivastava Amit , Misra Anil Kumar 
Published: September 2019

Purpose
The purpose of this study is to investigate the effect of presence of buried flexible pipe on the bearing capacity of shallow footing. First, a model study is performed where shallow footing model is tested for its load settlement behavior, with and without the existence of buried PVC pipe lying vertically below the base of the footing.

Design/methodology/approach
The experimental set-up consisted of a steel box filled with sand at two different relative density values [RD = 50 per cent (medium dense) and RD = 80 per cent (dense sand)] and vertical load was applied on the model footing through hydraulic jack and reaction frame arrangement connected with a proving ring. Test results are verified numerically using commercially available finite element code PLAXIS 2D. With due verification, a parametric study has been conducted, numerically, by varying the range of input parameters, such as unit weight, angle of internal friction, diameter of buried conduit and the Elastic modulus of the soil to assess the pre cent reduction in the capacity of the foundation soil because of the presence of underlying buried flexible pipe.

Findings
Results show that for each footing, there exists a critical depth below which the presence of the buried conduit has negligible influence on the footing performance. When the conduit is located above the critical depth, the bearing capacity of the footing varies with various factors, such as geotechnical parameters of soil and location and diameter of the buried conduit.

Originality/value
It is an original paper performed to assess the presence of buried flexible pipe on the bearing capacity of the shallow footing.
Fuzzy-analytical-hierarchy process in failure mode and effect analysis (FMEA) to identify process failure in the warehouse of a cement industry
Authors: Hassan Azmi , Purnomo Muhammad Ridwan Andi , Anugerah Adhe Rizky 
Published: September 2019

Purpose
This paper aims to identify and reduce possible process failures occurred in warehouse.

Design/methodology/approach
This research used risk analysis method FMEA combined with fuzzy-analytical hierarchy process (AHP). Design FMEA will direct the failure mode or failure of components into levels and will use it to analyze the product before it used in manufacturing processes. Design FMEA has a major point on the failure mode that caused inefficiency in the design while fuzzy-AHP used to reduce subjectivity in the weighting process.

Findings
The results show that high inventory is the dominant factor that must be controlled by the company to prevent the risk of failure processes in the warehouse, followed by the number of stocks that do not match with existing records, and misplacement of machines and/or materials.

Originality/value
This research used risk analysis method FMEA combined with fuzzy-AHP to identify and reduce the possible process failures in warehousing.
Comparing STATIC-99R and STABLE-2007 between persons with and without intellectual disabilities
Authors: Delforterie Monique , van den Berg Jan Willem , Bolt Betto , van den Hazel Teunis , Craig Leam , Didden Robert 
Published: September 2019

PurposeWhile there is a significant proportion of people with a mild intellectual disability (MID) or borderline intellectual functioning (BIF) who commit sexual offenses, little research has focused on the risk factors for sexual recidivism in people with MID-BIF. The purpose of this paper is to compare the scores on the STATIC-99R and STABLE-2007 between persons with sexual offense histories with and without MID-BIF.Design/methodology/approachData using the STATIC-99R and STABLE-2007 were collected in 85 male patients divided into an MID-BIF group (IQ 50–85,n=50) and comparison group (IQ>95,n=35).FindingsThe MID-BIF group and comparison group did not differ significantly on the static risk factors and total score of the STATIC-99R. However, of the 13 dynamic risk factors of the STABLE-2007, the MID-BIF group scored significantly higher on the items Impulsive acts, Poor problem solving skills and Lack of concern for others, while the comparison group scored significantly higher on the item Deviant sexual preference.Originality/valueThe higher score on a number of dynamic risk factors for patients with MID-BIF could partly be explained by the characteristics associated with MID-BIF. Although dynamic criminogenic risk factors which are usually identified as targets for treatment appear the same for people with and without MID-BIF who commit sexual offenses, adaptations to the modality of treatment will still need to be made for people with MID-BIF.
An optimal charging strategy for crowdsourcing platforms
Authors: Chen Jiumei , Liu Zhiying , Zhang Wen , Gong Bengang 
Published: September 2019

Purpose
The purpose of this paper is to develop an optimal charging strategy for a third-party crowdsourcing platform.

Design/methodology/approach
Based on the auction theory, the Stackelberg game theory and the systems theory, this paper presents a new model from the perspective of risk sharing between solution seekers and the crowdsourcing platform, given the utility maximization of the seekers, the crowdsourcing platform and the solvers.

Findings
Based on the results, this study shows that the menu of fees, which includes different combinations of a fixed fee and a floating fee schedule, should be designed to attract both solution seekers and solvers. In addition, the related prize setting and the expected payoff for each party are presented.

Practical implications
This study is beneficial for crowdsourcing platform operators, as it provides a new way to design charging strategies and can help in understanding key influential factors.

Originality/value
To the best of the authors’ knowledge, this study is one of the first to simulate the interactions among the three stakeholders, thereby providing a novel model that includes a fixed fee and a floating commission.
Pathogenic role of palatine tonsils in palmoplantar pustulosis: A review
Authors: Harabuchi Yasuaki , Takahara Miki 
Published: September 2019

AbstractPalmoplantar pustulosis (PPP) is characterized by symmetrical, erythematous, scaly plaques, with numerous, sterile, non‐bacterial, pinpoint pustules, which are restricted to the palms and soles. Because several reports have described the efficacy of tonsillectomy for improvement in PPP skin lesions, we consider that PPP is tonsil‐induced autoimmune/inflammatory syndrome (TIAS) while other factors are also involved in the pathogenesis of PPP. Here, the association between PPP pathogenesis and TIAS was examined, with a focus on results of previous studies. PPP patients show a hyperimmune response to indigenous bacteria such as α‐streptococci, due to impaired immunological tolerance towards such organisms. Such a novel immune response leads to T‐cell activation through the abnormal expression of secondary stimulation molecules, including cytotoxic T‐lymphocyte‐associated antigen 4, inducible T‐cell co‐stimulator and Smad7, in the tonsils of PPP patients. Activated tonsillar T cells express cutaneous lymphocyte antigen (CLA), CCR6 and β1‐integrin, enter the blood circulation and are recruited to PPP skin lesions. Within lesions, T cells roll onto endothelial cells through the interaction between CLA and E‐selectin, migrate into the extravascular area through β1‐integrin–vascular cell adhesion molecule 1 binding, and assemble in the skin through CCL20–CCR6 binding. Hyperimmune responses to autoantigens such as keratin and heat shock proteins could also be involved in PPP pathogenesis, through the stimulation of the T‐helper 17 reaction.
Legal Systems, National Governance and Renewable Energy Investment: Evidence from Around the World
Authors: Liu Jia , Zhang Dayong , Cai Jing , Davenport John 
Published: September 2019

AbstractThis paper examines renewable energy (RE) investment and the role of a country's legal system in shaping investment decisions. Analysing data from 236 renewable energy companies between 2000 and 2017 across the world, our study establishes that those in a common law system are more responsive to growth opportunities in RE investment, while facing greater financial constraints than their counterparts in civil law systems. Our study demonstrates that the global imbalance in RE development is caused by the influence of a country's legal system, which determines the regulatory and business ethos that impacts on the trajectory of investment, and by the varying degrees of accountability implicit in a country's governance environment. Our research raises the implication that the opportunity costs of forgone economic gains are in direct conflict with long‐term environmental goals, retarding the transition from carbon‐based to sustainable sources of energy, and provides insights into how development can be stimulated by fiscal incentives, favourable regulations, societal engagement, improved access to finance and the alignment of national strategies. Our findings contribute to the economic literature of legal origin theory and establish fundamental principles for refining global RE development strategy and confronting the challenge of climate change.
Corporations as Moral Agents: Trade‐Offs in Criminal Liability and Human Rights for Corporations
Authors: Friedman Nick 
Published: September 2019

AbstractThis article argues that a common way of defending corporate criminal liability creates a dilemma: it provides a strong justification for giving human rights to corporations. This result follows from approaches to punishment and human rights which predicate each on the status of moral agency. In short, if corporations are moral agents in a sufficient sense to attract criminal liability, they are eligible holders of human rights. The article also discusses the doctrinal application of this philosophical claim. Drawing on US jurisprudence, it illustrates how the European Court of Human Rights might deploy corporate moral agency as a theoretical foundation for its otherwise weakly‐reasoned attribution of human rights to corporations. If proponents of corporate criminal liability are dissatisfied with these conclusions, they face difficult policy trade‐offs: they must abandon the doctrine, or adopt alternative approaches to punishment or human rights.
Intranasal nanoemulsion vaccine confers long‐lasting immunomodulation and sustained unresponsiveness in a murine model of milk allergy
Authors: O'Konek Jessica J. , Landers Jeffrey J. , Janczak Katarzyna W. , Lindsey Hayley K. , Mondrusov Anna M. , Totten Tiffanie D. , Baker James R. 
Published: September 2019

AbstractBackgroundImmunotherapy for food allergy requires prolonged treatment protocols and, in most cases, does not lead to durable modulation of the allergic immune response. We have demonstrated an intranasal (IN) nanoemulsion adjuvant that redirects allergen‐specific Th2 responses toward Th1 and Th17 immunity, and protects from allergen challenge after only 2‐4 monthly administrations. Here, we investigate the ability of this technology to provide long‐term modulation of allergy in a murine model of cow's milk allergy.MethodsSix weeks after sensitization to bovine casein, mice received four, monthly IN immunizations with nanoemulsion formulated with casein. Protection from casein challenge was assessed at 4 and 16 weeks after the final vaccine administration.ResultsThe NE vaccine significantly blunted the physiological responses to allergen challenge, and this effect persisted for at least 16 weeks. The protection from challenge was associated with the suppression of casein‐specific Th2 immunity and induced Th1 and Th17 cytokines as well as induction of IL‐10. Of interest, while immunized animals showed significantly decreased Th2 cytokine responses, cow's milk‐specific IgE remained elevated in the serum at levels associated with reactivity in control sensitized animals. Protection was associated with suppressed mast cell activation and markedly reduced mast cell infiltration into the small intestine.ConclusionThe sustained unresponsiveness of at least 16 weeks after vaccination suggests that the nanoemulsion vaccine alters the allergic phenotype in a persistent manner different from traditional desensitization, and this leads to long‐term suppressive effects on allergic disease without eliminating serum IgE.
Changing QRS duration and morphology with A‐paced and A‐sensed rhythm in postcardiac resynchronization therapy (CRT) patients
Authors: Deshpande Saurabh Ajit , Udyavar Ameya 
Published: September 2019

AbstractMeticulous interpretation of the ECGs of patients with cardiac resynchronization defibrillator therapy (CRT‐D) device is important to ensure optimal synchronization of both the chambers. We present the ECGs of such a patient who was noted to have different morphologies of the biventricular‐paced QRS depending in atrial‐sensed (A‐sensed) or atrial‐paced (A‐paced) rhythm.
FISCAL DECENTRALIZATION AND ECONOMIC GROWTH OF VIETNAMESE PROVINCES: THE ROLE OF LOCAL PUBLIC GOVERNANCE
Authors: THANH Su Dinh , CANH Nguyen Phuc 
Published: September 2019

ABSTRACTThis study offers an insight into the public governance role in the relationship between fiscal decentralization and provincial economic growth in Vietnam. Fiscal decentralization measures are assorted. Applying a sequential (two‐stage) estimation for the panel data of 62 provinces of Vietnam over the 2006–2015 period, we find that first, fiscal decentralization is positively related to the economic growth of Vietnamese provinces. Second, the effects of public governance on economic growth vary across provinces depending on various levels of local public governance. Interestingly, the effect of fiscal decentralization is strengthened when this variable is added along with better quality of public governance. In a region of high public governance quality, fiscal decentralization exerts a positive effect on its economic growth. Our findings imply that the design of fiscal decentralization needs to be associated with local governments’ ability of public governance to improve the local economic growth.