THE purpose of this work, which the authors regard as a pioneer attempt, is the accomplishment in the field of masculinity and femininity of something similar to Binet's early achievement in the field of intelligence, inasmuch as they have endeavoured to apply psychometric methods in the form of a test to the study of sex temperaments. The test was originally devised by the senior author, Lewis M. Terman, in 1922 in the investigation of intellectually superior children, and has since been applied in the examination of a great variety of groups, including college students, office workers, athletes, delinquents, homosexuals and prostitutes, the ages ranging from early adolescence to extreme old age.Sex and Personality': Studies in Masculinity and Femininity. By Lewis M. Terman and Catherine Cox Miles., assisted by Jack W. Dunlap, Harold K. Edgerton, E. Lowell Kelly, Albert D. Kurtz, E. Alice McAnulty, Quinn McNemar, Maud A. Merrill, Floyd L. Ruch, Horace G. Wyatt. (McGraw-Hill Publications in Psychology.) Pp. xii + 600. (New York and London: McGraw-Hill Book Co., Inc., 1936.) 25s.

Sex and personality

Entropy Generation Minimization

A Review on efficient thermal management of air- and liquid-cooled data centers: From chip to the cooling system

Cognitive therapy of substance abuse

Cooling of server electronics: A design review of existing technology

A review of heat transfer and pressure drop characteristics of single and two-phase microchannels

Economic optimization design of shell-and-tube heat exchangers by a cuckoo-search-algorithm

Pin-fins are considered as one of the best elements for heat transfer enhancement in heat exchangers. In this study, the topology of pin-fins (length, diameter, and shape) is optimized based on the entropy generation minimization (EGM) theory coupled with the constructal law (CL). Such pin-fins are employed in a heat exchanger in a sensible thermal energy storage (TES) system so as to enhance the rate of heat transfer. First, the EGM method is used to obtain the optimal length of pin-fins, and then the CL is applied to get the optimal diameter and shape of pin-fins. Reliable computational fluid dynamics (CFD) simulations of various constructal pin-fin models are performed, and detailed flow and heat transfer characteristics are presented. The results show that by using the proposed system with optimized pin-fin heat exchanger the stored thermal energy can be increased by 10.2%.

Optimization of Pin-Fins for a Heat Exchanger by Entropy Generation Minimization and Constructal Law

Constructal wavy-fin channels of a compact heat exchanger with heat transfer rate maximization and pressure losses minimization

To obtain better fluid mixing and higher heat transfer in the low Reynolds number regime, various wavy fins are employed in heat sinks (heat exchangers) for electronic cooling applications. However, it was reported in previous works that in the low Reynolds number regime there are no remarkable differences in the thermal performance of a straight-plate and a wavy-wall channel. In this study, the constructal theory is applied to optimize the geometry of wavy-wall channels of an electronic heat sink, where the objective is to minimize the global thermal resistance. The domain has three degrees of freedom: The interplate-spacing (S), the wavelength ratio (lambda(1)/lambda(2)), and the amplitude ratio (a(1)/a(2)). The two times minimized global thermal resistance indicates that the thermal-hydraulic performance of the wavy channels is unaffected by the amplitude ratio, while the wavelength ratio and interplate separation have strong impacts on the overall performance. In addition, the thermal performances at four Reynolds numbers are evaluated, and it is found that the constructal-wavy channels can exhibit much better thermal performance in the low Reynolds number regime. (Less)

Masoud Asadi

Papers

A review of heat transfer and pressure drop characteristics of single and two-phase microchannels

Economic optimization design of shell-and-tube heat exchangers by a cuckoo-search-algorithm

Optimization of Pin-Fins for a Heat Exchanger by Entropy Generation Minimization and Constructal Law

Constructal wavy-fin channels of a compact heat exchanger with heat transfer rate maximization and pressure losses minimization

Constructal Theory Based Geometric Optimization of Wavy Channels in the Low Reynolds Number Regime