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The purpose of this paper is to investigate the acoustic properties of needle-punched nonwovens produced of bamboo, banana and hemp fibers blended with polyester (PET) and polypropylene (PP) as they are supportive enough to minimize sound transmission inside the automobiles.

Textile materials like bamboo, banana and hemp blended with PET and PP in the ratio of 35:35:30 were applied to make the web. The needle-punching technique was applied to each web for three times to form a full nonwoven textile composite. The concept of PET/PP blend with natural fibers was to enhance the consistency and thermoform propensity of the composites. When nonwoven textile composites were placed in between a sound source and a receiver, they absorbed annoying sound by dissolving sound wave energy. Sound absorption coefficient was measured by the impedance tube method as per ASTM C384 Standard. Bamboo/PET/PP composite showed the highest absorption coefficient in most of the frequencies.

Physical and comfort properties were tested for the composites and it was noticed that bamboo/PET/PP composites with its compressed structure showed a better stiffness value, lesser thermal conductivity, lesser air permeability, better absorption coefficient and highest sound transmission loss compared to other two composites. At 840 Hz, the absorption coefficient of bamboo/PET/PP remained in satisfactory level but it was inferior by 20 percent in banana/PET/PP. Conversely at more frequencies like 1,680 Hz, there was a decrease from the target level in all the nonwovens composites, which could be enhanced by raising the thickness of the nonwovens, and all these properties of bamboo/PET/PP were considered appropriate for controlling noise inside the vehicles.

This research will provide facilities to decrease noise inside the vehicles. It will improve the apparent value of the automobiles to the traveler and also provide a sensible goodwill to the manufacturer.

This research will open several ways for the development of different nonwoven composites, particularly for the sound absorption and will open possible ways for the scholars to further study in this field.

The aim is to apply pseudo‐random correlation method to detect very weak electrical signals because of various natural and artificial electron‐magnetic interferences in electrical prospecting.

Electrical prospecting is an important method of geophysical exploration and the electrical prospecting instruments are required to detect very weak electrical signals against strong interferences. Recently, pseudo‐random correlation coding has been widely applied in telecommunications and measurement and test systems to improve the signal noise ratio with great success, but has not been used in electric prospecting. This paper theoretically investigated the application model of pseudo‐random correlation techniques in electrical prospecting.

The model of pseudo‐random correlation techniques in electrical prospecting, including its principle, detailed protocol and parameter selection, is established.

With the continuing improvement in the capacity of electrical prospecting transmitters, the pseudo‐random correlation method will be widely used in electrical prospecting.

The pseudo‐random correlation techniques is originally investigated for its application in electrical prospecting. This paper is aimed at researchers and engineers in geophysical exploration.

The paint industry is always intrigued by speciality coatings. Literally thousands of paint formulations have been devised over the years with highly specialized and very frequently intriguing functions. In this latter category is a process described in Japanese patent 19,790 (1971) for painting polka dots upon sheet metal. How often the need for such technology might arise in the life of the average paint chemist is, of course, a moot question. But some comfort can no doubt be drawn from the fact that this unique methodology exists!

The purpose of this paper is to develop insights about the psychological factors that contribute to lean’s success as a holistic and adaptive system.

The authors use the best-selling book “Thinking, Fast and Slow” (TFAS) (2011) by Nobel-prize winner Daniel Kahneman to provide a familiar lens for readers who might not otherwise be familiar with the psychology theories that are used in this paper to study lean conceptually. With this approach, the paper sheds light on psychological factors that tie together many of the philosophies, principles and practices of lean.

The paper shows how lean’s philosophies, principles and practices provide a synergistic and self-reinforcing system that drives employee thinking and actions. TFAS characterizes thought processes as “fast System 1 thinking” that relies on intuition and “slow System 2 thinking” that is more rational and logical. Lean psychology eliminates waste and adds customer value by supporting, enhancing and taking advantage of beneficial fast thinking and motivating and imposing appropriate slow thinking.

The authors develop the concept of lean psychology to describe the relationship between psychology theories and lean. By applying lean psychology, organizations can go beyond superficially adopting a checklist of tools and techniques to more fully take advantage of lean and improve their operations performance.

How to maintain highest standards of quality assurance in manufacture of the Fokker F27 turboprop and F28 twinjet aircraft was the theme of a seminar organised by Fokker in Amsterdam.

The purpose of this paper is to assess the behavioural and psychological effects on people with intellectual disabilities of transferring to an environment influenced by patient choice and low secure standards.

Patients and staff transferring from a non-optimal environment to one driven by low secure standards compared the homeliness, ward climate and satisfaction with the two wards. Comparisons were made between the occurrences of risk behaviours on the two wards.

The new environment was rated by staff as more homely while patients’ increased satisfaction with the new ward was reflected in social climate ratings of patient cohesion and experienced safety. The latter findings were reinforced by an objective reduction in risk behaviours in the new environment.

Treatment interventions need to optimise research findings that attest to the influence of the environment on the behaviour of patients with intellectual disabilities.

Findings highlight need to increase the focus on aspects of the built environment in planning the treatment of women in secure care.

The 1983 U.K. Forging of the Year Competition has been won by H.D.A. Forgings Ltd. of Redditch with a complex forging for a Rolls‐Royce engine destined for a Boeing aircraft.