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The purpose of this paper is to present evaluation results of Operation Galley, an intelligence-led policing (ILP) intervention that sought to proactively address the problem of drug dealing from hotel rooms by engaging hoteliers as crime control partners with the Queensland Police Service.

Operation Galley, a randomized control field trial, rank ordered and matched 120 hotels on size, star rating, location and estimated degree of suspicious behaviour. Hotels were randomly assigned to one of three conditions: Operation Galley hotels who received a procedurally just letter, followed by a personal visit with detectives; the letter-only hotels who received the procedurally just letter; and the business as usual hotels.

Using repeated measures ANOVA and general linear models, results of the 12-month trial indicate that the Operation Galley condition led to an increase in police engagement with hoteliers, increasing the recognition, reporting and police enforcement of drug offenders.

The Operation Galley trial demonstrates that the ILP approach helped foster positive engagement between hoteliers and detectives. The approach cultivated hoteliers as crime control partners and thereby increased the flow of human source intelligence, helping police to better target and respond to drug dealing problems in hotel rooms.

Results of the Operation Galley trial demonstrate that hoteliers can be leveraged as crime control partners, providing important human source intelligence about drug dealing and facilitating the capacity of police to better respond to drug problems in hotels.

The study aims to analyze both thermal and wind comfort conditions of a historical mosque's interior and outdoor spaces for the planning of further conservation decisions.

The method is composed of two steps. First, thermal comfort analyses are conducted via Design-Builder Software. The predicted mean vote (PMV) and predicted percentage of dissatisfied indices were calculated and evaluated using the ASHRAE 55–2010 standard. Thermal comfort conditions are analyzed with the proposed three operations. Second, wind comfort analyses are conducted via computational fluid dynamics (CFD) software. Outdoor thermal comfort conditions are predicted by air temperature, mean radiant temperature, wind speed and relative humidity.

The (PMV) in the harim was calculated as −1.83 (cool) which corresponds to a predicted percentage of dissatisfaction (PPD) equal to 68.54%. Thermal comfort was provided by daytime and continuous operations; however, intermittent operations did not provide thermal comfort. The wind velocities around the mosque are well below the 5 m/s limit value for standing defined by NEN 8100 wind nuisance standard. Moreover, the limit value of 2.5 m/s for sitting was also satisfied with more than 80% of the semi-enclosed area around the entrance of the mosque. Last comer's hall remains in a slight cold stress range, the rest of the areas have no thermal stress.

This two-stage study creates a base for further improvements to provide comfort conditions in a historical building without interfering with its original features.

The purpose of this paper is to investigate the nature of commitments of local employees to a parent company and a local operation in comparison to the nature of commitment of Western expatriates to the two foci.

Data were collected by questionnaire from 532 local employees and 471 Western expatriates currently working for the subsidiaries of multinational companies (MNCs) in Vietnam. Hypotheses were tested using exploratory factor analyses, confirmatory factor analyses, correlation analyses, t-test, generalized linear models and hierarchical regression.

The results confirmed two distinct commitment foci and revealed that the commitment to the local operation was stronger than the commitment to the parent company for local employees. Remarkably, retention and absenteeism are more driven by local operation commitment than by parent company commitment for the local employees. In contrast, these outcomes are more driven by parent company commitment for the Western expatriates. Working conditions (job autonomy, job variety, transformational leadership and remuneration) positively predicted affective commitment to the local operation for both groups; particularly job variety and leadership were better predictors for local employees than for Western expatriates.

The comparison shows effective and specific ways to sustain and reinforce the commitments of each employee group with regard to two foci. This information may help to reduce the rate of turnover intention and absenteeism in MNCs.

By using a multifaceted approach, this study provided a comparison of dual organizational commitment for different categories of employees working in MNCs. Second, this study shows that the stronger commitment focus has a stronger influence on related outcomes (i.e. retention and absenteeism). If so, MNCs can focus on reinforcing the selected commitment focus in order to reduce the costs of management. Third, the study has initially pointed out that some work factors exert a specific influence on different commitment foci in the two groups. Controlling these work conditions is recommended to sustain and develop commitment levels of the two groups.

The purpose of this paper is to better understand consumer's familiarity with fruit processing as well as how fruit production conditions (organic and conventional farming), processing conditions (homemade, artisanal and industrial) and the type of processing (e.g. applesauce, apple cider and apple sorbet) influence consumer perceptions of processed fruits.

An online survey questionnaire was applied to 1,000 people living in France. The people represented different genders, ages (18–60+) and sociodemographic categories. Participants were categorized based on their produce purchasing habits (conventional, local, organic, local-organic). The questionnaire contained multiple choice and five point Likert scale questions. Data were analyzed using non-parametric tests.

The authors found that participants saw year-round availability, fruit preservation and food waste reduction as processing advantages. Locally sourced products were preferred to organic products. The perceived disadvantages to processing were additive usage, nutrient loss and packaging. For consumers, these disadvantages drove highly differentiated perceptions of industrial versus artisanal/homemade apple products. Processing conditions appeared to matter far more than production conditions (organic vs. conventional). In general, consumers weren't familiar with processing operations, awareness was greater for consumers of local and/or organic produce than conventional consumers.

There must be a societal transition toward healthier diets, and food technologies. Informed consumers, might be better equipped to make healthy, informed choices if the consumers are given quality information about food production and processing at different levels.

Research has shown that consumers view fresh organic fruit positively, but only few studies have looked at perceptions of processed fruit products and their familiarity with processing operations. Results of this study demonstrate that consumers could make better choices if the consumers are given quality information about fruit production and processing.

Currently, lubrication analysis of piston ring is generally done under engine rated operating condition. However, the engine (such as the vehicle engine) does not always operate in rated operating condition, and its operating condition changes frequently in actual use. In addition, the lubrication status of piston ring is generally assumed as the flooded lubrication or a certain form of poor lubrication in most of the lubrication analysis.

In this paper, based on the equations about the flow rate of lubricating oil and the variation of control volume, the flow model of lubricating oil in the piston ring-cylinder liner conjunction is established. The lubrication analysis of piston ring for a four-stroke engine under different engine operating conditions is done, in which the lubricating oil at the inlet of piston ring is considered as the lubricating oil attached on the relevant location of cylinder wall after the piston ring moves over at the previous stroke.

There is remarkable difference for the lubrication characteristics of the piston ring under different engine operating conditions. The worst lubrication status of piston ring may not take place under engine rated operating condition.

In this paper, based on the measured engine cylinder pressure, the lubrication analysis of piston ring for a four-stroke engine under different engine operating conditions is done in which the lubricating oil supply condition at the inlet of piston ring is considered. The results of this paper are helpful for the design and research of engine piston ring-cylinder liner conjunction.

The purpose of this paper is to show that necessary condition hypotheses are important in operations management (OM), and to present a consistent methodology for building and testing them. Necessary condition hypotheses (“X is necessary for Y”) express conditions that must be present in order to have a desired outcome (e.g. “success”), and to prevent guaranteed failure. These hypotheses differ fundamentally from the common co‐variational hypotheses (“more X results in more Y”) and require another methodology for building and testing them.

The paper reviews OM literature for versions of necessary condition hypotheses and combines previous theoretical and methodological work into a comprehensive and consistent methodology for building and testing such hypotheses.

Necessary condition statements are common in OM, but current formulations are not precise, and methods used for building and testing them are not always adequate. The paper outlines the methodology of necessary condition analysis consisting of two stepwise methodological approaches, one for building and one for testing necessary conditions.

Because necessary condition statements are common in OM, using methodologies that can build and test such hypotheses contributes to the advancement of OM research and theory.

This paper is a continuing exploration into facilities management (FM) strategy through the arrangement of its decision choices. The purpose of this paper is to identify the existence of FM operation strategy and to add empirical evidence to this subject to the field of FM and property management. Its main objectives are to gain insights into the arrangement of the FM strategic choices in operation and its relationship with business strategy.

The study investigated the configurations of operational approaches and activities that should reflect strategic decisions. The investigation was undertaken through a study of four reputed shopping malls located in Bangkok. The relevant data were collected through semi-structured interviews with the key FM persons of each case study, plus archival document searches, and observations of operational processes. Subsequently, the data were examined in a cross-case analysis to identify the key patterns of relationships between the FM operational arrangements and the business strategy of the mall.

This study found that the functional scheme of FM adopted in operations was deliberately related to the needs of business strategy and the operations of the given shopping mall. A range of strategic choices for FM operations was also found. Certain choices are shared among the case studies, while their arrangements varied according to the particular business strategy and context.

The number of case studies was rather limited, while the results were predominantly involved with a single type of facility.

The study identified the pattern of strategic choices entailed in the FM operations in shopping malls. The findings add to the understanding on FM strategy by widening the perspectives about the strategic choices of FM operations and how they are connected with the business strategy and operation model of retail estate. It adds empirical evidence and case studies regarding FM operations and its strategic features.

In the high-altitude, high-voltage electromagnetic interference operation environment, due to the parameters perturbation for robot control model caused by uncertainties and disturbances, and with the poor effective of the conventional proportional–integral–derivative (PID) control to parameters perturbation system, the mathematical model of power cable live operation robot joint PID closed-loop control system is established.

The corresponding joint motion robust PID control method is also proposed based on Kharitonov theory, the system robust stability conditions including the sufficient and necessary conditions are deduced and obtained and the solving process of robust PID control parameters stability region is provided.

Finally, the simulation research on robot joint motion PID control system is also launched in MATLAB environment based on Kharitonov theory. The results show that the conventional PID control obtains better control effect only to nominal model but is ineffective to parameter perturbation system, while robust PID obtains sound control effect to parameter perturbation system. Compared with H8 robust PID, the Kharitonov robust PID has better control effect which meet the system design requirements of joint motor quickly response, high tracking accuracy and sound stability. Finally, the validity and engineering practicability are verified by 220-kV living replacing damper operation experiment.

This paper has described the development of a damper replacement power cable live maintenance robot experimental prototype, which greatly improves operation efficiency and deals with the safety problem of operation in a high-voltage environment. A general manipulator motion control model of the power cable robot is established; the Kharitonov theory-based parameter perturbation robust motion control method of damper replacement robot is also obtained. Through the simulation comparison, it is verified that the Kharitonov control has more superiority for dealing with the parameter perturbation systems under the premise of ensuring the stability motion. The field experiment has further confirmed the engineering practicability.

The impact of the loop current (LC) on the motor magnetic field in the analysis of the inter-turn short circuit (ITSC) fault is always ignored. This paper made a comparative study on the electromagnetic field of permanent magnet synchronous motors (PMSM). The purpose of this study is to explore the necessary of the LC existing in the fault analysis and the electromagnetic characteristics of the PMSM with the ITSC fault when taking into account the LC.

Based on the finite element method (FEM), the fault model was established, and the magnetic density of the fault condition was analyzed. The induced electromotive force (EMF) and the LC of the short circuit ring were studied. The three-phase induced EMF and the unbalance of the three-phase current under the fault condition were studied. Finally, a prototype test platform was built to obtain the data of the fault.

The influence of the fault on the magnetic density was obtained. The current phase lag when the ITSC fault occurs causes the magnetic enhancement of the armature reaction. The mechanism that LC hinders the flux change was revealed. The influence of the fault on the three-phase-induced EMF symmetry, the three-phase current balance and the loss was obtained.

The value of the LC in the short circuit ring and the influence of it on the motor electromagnetic field were obtained. On the basis of the electromagnetic field calculation model, the sensitivity of the LC to the magnetic density, induced EMF, current and loss were analyzed.

The effects of space environment on friction and wear and on the selection of lubricants and self‐lubricating materials for spacecraft mechanisms are discussed, with special emphasis on the ultrahigh vacuum of space. Experimental studies have demonstrated the feasibility of using selected oils and greases to lubricate lightly loaded ball bearings without replenishment for periods of over one year under the following conditions of operation : speeds of 8,000 rpm, temperatures of 160 to 200°F., and vacuum of 10–8 torr. Over one‐half year of successful operation has been achieved under similar operating conditions with self‐lubricating retainers of reinforced Teflon, provided that the loads were light. Bonded films of molybdenum disulfide have given shorter lifetimes and poor repro‐ducibility. Metal‐to‐metal slip‐ring contacts introduce excessive electrical noise into circuits when operated in vacuum of 10–7 torr. The noise (as well as the friction and wear) can be markedly reduced by providing a small amount of oil vapor, sufficient to maintain a pressure on the order of 10–6 torr, or by incorporating molybdenum disulfide into the brush material.