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The purpose of this paper is to establish an orbital launch window for manned Moon‐to‐Earth trajectories to support China's manned lunar landing mission requirements of high‐latitude landing and anytime return, i.e. the capability of safely returning the crew exploration vehicle at any time from any lunar parking orbit. The launch window is a certain time interval during which the transearth injection may occur and result in a safe lunar return to the specified landing site on the surface of the Earth.

Using the patched conic technique, an analytical design method for determining the transearth trajectories is developed with a finite sphere of influence model. An orbital launch window has been established to study the mission sensitivities to transearth trip time and energy requirements. The results presented here are limited to a single impulsive maneuver.

The difference between the results of the analytical model and high‐fidelity model is compared. This difference is relatively small and can be easily eliminated by a simple differential correction procedure. The launch window duration varies with launch date, from less than one hour to greater than 20 h, and the launch window occurs every day in the sidereal month.

The solution can be used to serve as an initial estimate for future optimization procedures.

The orbital launch window can be used to provide the basis for the preparation of an orbital launch timetable compatible with lunar missions and re‐entry conditions requirements.

Previous studies were mainly concentrated on the launch windows for the departure from the Earth. This paper investigates and establishes the orbital launch window for Moon‐to‐Earth trajectories.

To make the single‐antenna attitude method more useful as a back‐up or fault diagnostic system than was targeted originally.

The enhancement incorporates information from the GPS satellite constellation and aircraft dynamic model. The visibility of GPS satellites affects the accuracy of the aircraft's volocity that is the main source of single‐antenna attitude. In addition, to use the aircraft dynamic model is natural because single‐antenna attitude is for exclusive use of aircraft. These are considered and implemented as a covariance matrix or process model of Kalman filters. The enhanced performances are verified by an aircraft nonlinear simulation.

The proposed method estimates more accurate volocity and unpiased single‐antenna attitude by using satellite constellation information and the aircraft dynamics. Moreover, the implemented system has a structure that combines other navigation sensors easily.

It would be more desirable to perform further researches; sensor integration, stability against wind disturbance, and aircraft model uncertainty, etc.

A useful attitude sensor for a back‐up attitude system at low cost on manned aircraft or a main attitude system on unmanned aircraft that are sensitive to the mass or size of payload.

This paper has been the first to promote the potential of single‐antenna attitude and with only information that can be easily obtained.

Gives an in depth view of the strategies pursued by the world’s leading chief executive officers in an attempt to provide guidance to new chief executives of today. Considers the marketing strategies employed, together with the organizational structures used and looks at the universal concepts that can be applied to any product. Uses anecdotal evidence to formulate a number of theories which can be used to compare your company with the best in the world. Presents initial survival strategies and then looks at ways companies can broaden their boundaries through manipulation and choice. Covers a huge variety of case studies and examples together with a substantial question and answer section.

Discusses the transfer of undertakings in the UK, referring to the Transfer of Undertakings (Protection of Employment) Regulations of 1981, the Employment Rights Act 1996, and the Acquired Rights Directive 1977. Provides the raison d’etre of the Acquired Rights Directive and outlines how it was implemented in the UK. Talks about the confusing jurisprudence of the European and British courts, mentioning the European Court of Justice’s challenges to the directive, the 1994 proposals, amended 1997 proposals, the Commission’s memorandum of 1997 and the UK government’s consultation papers. Describes how the European Directive is applied and interpreted in relation to the Acquired Rights Directive and transfer of undertakings. Outlines the regulations controlling compulsory competitive tendering. Points out the obligation to inform and consult on the transfer of an undertaking and how the directive is enforced if this fails to occur. Notes the effect a relevant transfer has on existing collective agreements and the legal implications of dismissing employees by reason of the relevant transfer. Looks at the European Commission’s proposal for a directive on safeguarding employees’ rights in the event of transfer and the implications that would have on UK business. Concludes that a new directive is needed, building on the 1977 Directive but ironing out its inconsistencies.

The purpose of this paper is to determine the thermoelectric properties of the germanium-based thin films and selecting the most suitable ones for fabrication of micrognerators.

The germanium layers were deposited by low pressure magnetron sputtering method, in the pressure of 10−3/104 mbar range. The amount of dopants (germanium or vanadium) was changed in a limited extent. The influence of such changes on the layers output properties was studied. Post-processing heat treatment at temperature below 823 K was applied to activate the layers. It leads to improve the electrical and thermoelectrical performance.

The special attention was paid to the power factor (PF = S2/ρ) of the layers. To estimate power factor (PF) electrical resistivity (ρ) and Seebeck coefficient (S) were determined. The achieved Seebeck coefficient value was 185 Volt/Kelvin (μV/K) for germanium doped with vanadium (Ge:V_1.15) and 225 μV/K for germanium doped with gold(Ge:Au_3.13) layers at room temperature. After activation process, the PF reached a value of 2.5 × 10−4 W/m · K2 for the Ge:Au_3.13 and 1.1 × 10−4 W/m · K2 for the Ge:V_1.15 layers.

The fabricated thermoelectric layers can be thermally annealed in temperature up to 823 K in the air and in 1,023 K under a nitrogen atmosphere. This enables integration of thin layers with thick-film technology. Corning glass or low temperature cofired ceramic was used as a substrate.

To better understand the relationship between the headquarters and subsidiaries of multinational corporations, we introduce and test a theoretical framework that builds on and extends the positive agency theoretic corporate governance literature. Results indicate that there are three types of subsidiary bundles of corporate governance mechanisms that are used by multinational corporations. In addition, the following factors can help predict what type of subsidiary bundle a multinational corporation will use to align the interests of its headquarters with a particular subsidiary: the multinational corporation’s international strategy, its subsidiary’s importance, environmental uncertainty faced by its subsidiary, and its subsidiary’s age.

The purpose of this paper is to investigate the dependence of dark current on threading dislocations (TDs) in relaxed Ge layer for Ge/Si heterojunction photodetectors.

The analysis of the effects of TDs is based on SRH generation and recombination mechanism used in two‐dimensional drift‐diffusion numerical simulation.

It is found that the TDs in Ge layer acting as the recombination centers lead to large dark current densities of devices, and the recombination rate is affected by the impurity out‐diffusion from Si substrate. Besides, the TDs, being the acceptor‐like defects simultaneously, form band barrier at Si/Ge interface with lightly doped Si substrates, thus limiting the minority carrier transport and resulting in low dark current densities.

The simulation results are excellently consistent with the experimental data and indicate that the reduction of threading dislocation densities (TDDs), especially in Ge buffer layer, dramatically decreases dark currents densities of Ge/Si photodetectors. The investigation can be applied to imbue devices with desired characteristics.

This study aims to assess future teachers’ beliefs in their capabilities for sustainable gender equality (GE) practice after graduation and to analyze differences across degree and sex using a self-efficacy scale specifically designed and validated for this study.

A survey was administered to three cohorts of undergraduate and graduate student teachers at the University of Alicante, Spain. Using a convenience sample that represented the three teacher majors in early childhood, elementary and secondary education, 610 students were asked to rate their confidence in gender knowledge, skills and awareness using a six-point Likert scale.

Upon graduation, teachers reported unrealistic perceptions of their ability to practice a sustainable GE. The level of self-efficacy was found moderate in the three teacher cohorts with no statistically significant differences across degrees in any of the three efficacy components but gender attitudes were rated significantly higher by female students.

This study provides a reliable and valid instrument specifically helpful for guiding the education for the sustainable development (SD) of GE in instructional settings. Because there is no systemic approach to teaching sustainability nor valid and reliable instruments to assess gender competence for practicing a gender pedagogy, this tool will hopefully provide teacher education institutions a conceptual and practical framework on how GE can successfully be mainstreamed into the curriculum. Infusing SD of GE in curricula and assessing interventions as a habitual practice could be useful to monitor sustainability performance over time and assess contributions to SDG5.

Those most socially disadvantaged are at a greater risk of common mental disorder (CMD). The need to evaluate the health impact of social policy interventions that aim to reduce social inequalities between the disadvantaged and the better off is well recognised. This paper reports findings from a review to explore evidence on the health impact of UK policy interventions that aim to tackle the key social determinants of CMD. These were previously identified from the literature as cumulative socioeconomic deprivation, unemployment, psychosocial work characteristics, and poor social relationships. We identified some evidence of a positive impact on CMD of urban regeneration schemes, but evidence was sparse on interventions relating to the other determinants. The ability of research to inform policy designed to improve the lives of the disadvantaged could be assisted by a broader definition of what counts as evidence. This may include wider use of qualitative methodologies and a more deliberate focus on social processes known to be implicated in mental health.

This paper provides household lifetime inequality indexes derived from representative U.S. labor market data. We obtain this result by using estimates of the household search model proposed by Flabbi and Mabli (2012). Inequality indexes computed on the benchmark model shows that inequality in utility values is substantially different from inequality in earnings and wages and that inequality at the cross-sectional level is significantly different from inequality at the lifetime level. Both results deliver original policy implications that would have not been captured without using our approach. In particular, we find that a counterfactual policy experiment consisting in a mean-preserving spread of the wage offers distributions increases lifetime inequality in wages and earnings but not in utility. When comparing inequality at the individual level between men and women, we find inequality in wages and earnings to be higher for husbands than wives but inequality in utility to be higher for wives. A counterfactual decomposition shows that the job offers parameters are the main source of the gender differential.