A Creativity Model for the Analysis of Continuous Improvement Programmes: A Suggestion to Make Continuous Improvement Continuous

Continuous improvement programmes constitute an area in which creativity seems to play a vital role. This paper shows how continuous improvement may be studied more effectively in a framework which reveals relationships between the four facets of creativity: products, processes, people, and the press or environment. It is suggested that such a systematic analysis can enhance continuous improvement efforts by indicating how momentum is maintained as the company develops self-reflective (‘learning’) skills.     

Analysis of HBM ESD testers and specifications using a fourth-order lumped element model

This paper presents the general and analytical solution of a fourth-order lumped element model (LEM) to describe human body model (HBM) electrostatic discharge (ESD) testers including the main tester parasitic elements. The analytical fitting to the LEM of experimentally obtained HBM pulse data is a new scientifically justified tool to determine HBM tester parasitic elements. The impact of the test board capacitance on HBM testing is demonstrated and explained. Furthermore, the MIL 883C/3015.7¹ and EOS/ESD S5.1-1991² Standards on HBM testers are evaluated upon their selectivity to the test board capacitance. Finally, recommendations to improve HBM tester specifications regarding their selectivity to the parasitic test board capacitance are formulated     

Die Prüfung kalt gewalzter Feinbleche mit dem Aufschmelztiefungsversuch DIN 50 152

Aufschmelztiefungsversuche nach Vornorm DIN 50 152 an kalt gewalzten Feinblechen unterschiedlicher Blechdicke aus verschiedenen unberuhigten und beruhigten Stahlsorten nach DIN 1623 zur Überprüfung der Aussagefähigkeit des Verfahrens zur Kennzeichnung der durch ein Gasschmelzschweißen hervorgerufenen Änderung der Verformungsfähigkeit. Wiederholbarkeit der Meßergebnisse; Einfluß von Blechdicke, Probenlage (Seigerungen) und Vergießungsart.     

Drawing bridges by computer

The graphical technique presented in this paper allows the user to draw almost any type of bridge. Bridges are created as graphical variables and can be easily manipulated. Different kinds of bridges are classified and specified according to the characteristics of the road, the piers, the superstructure and the parapets. Several examples are presented. The terminology used stems from the use of Pascal.     

Improved synthesis of oxymethylene-linked poly(oxyethylene)

Polyethylene glycol 400 was reacted with CH₂Cl₂ in the presence of KOH to form oxymethylene-linked chains. The method gave a high yield of colourless high-molecular-weight elastomer. The ionic conductivity of a mixture of the polymer with LiCF₃SO₃ ([O]/[Li] = 25) was about 5 × 10^?5S cm^?1 at 25°C.     

Contribution a l'etude des proprietes magnetiques du dichlorure de vanadium VCl2

The magnetic properties of VCl₂ have been interpreted on the basis of a G.S. Rushbrooke et P.J. Wood model for Heisenberg bidimensional interactions. The calculation of the exchange integral leads to a value of $\text{J}\text{k}{}_{\mathrm{b}}$ close to ? 22,5 K. The strong antiferromagnetic intraplanar V – V interactions seem to result from direct t_2g - t_2g coupling.     

Techniques de mesure des coefficients d'heterodiffusion dans le plutonium. Application a la diffusion du cobalt dans le plutonium ϵ(cc)

The diffusion of ⁶⁰Co in bec ? plutonium has been studied by the sectioning method, and the following results have been obtained: D = 1.4 × 10^?3 exp (?9900/RT) cm²/sec over the temperature range 484–621°C. Cobalt diffuses rapidly in ? Pu. Since the diffusion coefficient does not change across the phase transition ? Pu (fcc) → ? (bcc), the diffusion mechanism must be dissociative in the two phases.     

Die elektrische Leitfähigkeit metallkeramischer Werkstoffe der Systeme ZrO2-Mo und Al2O3-Fe zwischen 20 und 1700°C

Berechnung der elektrischen Leitfähigkeit metallkeramischer Werkstoffe. Erklärung der sprunghaften Leitfähigkeitsänderung mit einem Polyedermodell. Messung der elektrischen Leitfähigkeit an gesinterten Metallkeramiken aus elektronenleitendem Zirkonoxid und Molybdän, stabilisiertem, ionenleitendem Zirkonoxid und Molybdän sowie aus Aluminiumoxid und Eisen. Einfluß der Ausgangskorngröße der oxidischen Komponente auf die elektrische Leitfähigkeit.