Economic Analyses and Performance Study of an Absorption Cycle with a Heat Recovery Absorber

1992 ◽  
Author(s):  
Saghiruddin ◽  
M. Altamush Siddiqui
Keyword(s):  
Heat Recovery ◽  
Performance Study ◽  
And Performance ◽  
Economic Analyses ◽  
Absorption Cycle

Economic analyses and performance study of three ammonia-absorption cycles using heat recovery absorber

1996 ◽  
Vol 37 (4) ◽  
pp. 421-432 ◽  
Author(s):  
Saghiruddin ◽  
M. Altamush Siddiqui
Keyword(s):  
Heat Recovery ◽  
Performance Study ◽  
Ammonia Absorption ◽  
And Performance ◽  
Economic Analyses

Economic Feasibility and Performance Study of a Solar-Powered Absorption Cycle Using Some Aqueous Salt Solutions

1997 ◽  
Vol 119 (1) ◽  
pp. 31-34 ◽  
Author(s):  
I. H. Malik ◽  
M. Altamush Siddiqui
Keyword(s):  
Economic Feasibility ◽  
Operating Conditions ◽  
The Other ◽  
Solar Collectors ◽  
Performance Study ◽  
Wide Range ◽  
And Performance ◽  
Solar Powered ◽  
Economic Analyses ◽  
Absorption Cycle

Economic analyses of solar collectors, for optimizing generator temperatures in the absorption cycle using aqueous solutions of LiBr, LiBr–ZnBr2, LiBr–ZnBr2LiCl, and LiBr–ZnCl2–CaBr2 salts, have been carried out for a wide range of the operating conditions. Ordinary collectors with two glass covers and evacuated-tubular collectors have been selected as the sources of energy for providing hot liquid in the generator of the absorption cycle. Of the four solutions, as the working fluids in the absorption cycles, those having better coefficients of performance are the LiBr/H2O at the low evaporator temperatures, and the (LiBr–ZnBr2–LiCl)/H2O as well as the (LiBr–ZnCl2–CaBr2)/H2O at the high evaporator temperatures. Similarly, costs of the solar collectors are low, at low evaporation temperatures for the LiBr/H2O and at high temperatures for the other two solutions; the (LiBr–ZnBr2)/H2O, on the other hand, have relatively low COP and high operating costs.

Replication of the Superstition and Performance Study by

2014 ◽  
Vol 45 (3) ◽  
pp. 239-245 ◽  
Author(s):  
Robert J. Calin-Jageman ◽  
Tracy L. Caldwell
Keyword(s):  
Task Difficulty ◽  
Statistical Power ◽  
Meta Analysis ◽  
A Priori ◽  
Significant Heterogeneity ◽  
Performance Study ◽  
Improve Performance ◽  
Research Designs ◽  
Series Of Experiments ◽  
And Performance

A recent series of experiments suggests that fostering superstitions can substantially improve performance on a variety of motor and cognitive tasks ( Damisch, Stoberock, & Mussweiler, 2010 ). We conducted two high-powered and precise replications of one of these experiments, examining if telling participants they had a lucky golf ball could improve their performance on a 10-shot golf task relative to controls. We found that the effect of superstition on performance is elusive: Participants told they had a lucky ball performed almost identically to controls. Our failure to replicate the target study was not due to lack of impact, lack of statistical power, differences in task difficulty, nor differences in participant belief in luck. A meta-analysis indicates significant heterogeneity in the effect of superstition on performance. This could be due to an unknown moderator, but no effect was observed among the studies with the strongest research designs (e.g., high power, a priori sampling plan).

Design, construction and performance study of a cascade impactor for reducing diesel particulate emission

2009 ◽  
Vol 39 (0) ◽  
Author(s):  
Md Shamim Akhter ◽  
SM Najmul Hoque ◽  
Md Nurun Nabi
Keyword(s):  
Cascade Impactor ◽  
Performance Study ◽  
Particulate Emission ◽  
Diesel Particulate ◽  
And Performance ◽  
Design Construction

ELIXIR TO EXAMINATION STRESS AMONG STUDENT - STUDY SKILLS TRAINING AND SYSTEMATIC DESENSITIZATION

2018 ◽  
Vol 6 (26) ◽  
Author(s):  
Jyoti Baijal
Keyword(s):  
Study Skills ◽  
Knowledge Society ◽  
Skills Training ◽  
Well Being ◽  
Systematic Desensitization ◽  
Performance Study ◽  
High Stakes ◽  
Deficit Model ◽  
Examination Stress ◽  
And Performance

Examination stress is a ubiquitous phenomenon that has, in the present times, adversely affected the learning outcomes and performance of the students at all levels- primary, secondary or higher education. It’s increasing intensity specifically among students appearing for high stakes board examination evokes a response from the teaching fraternity at the earliest. The reason being that a prolonged experience of stress with respect to evaluative situations is bound to prove detrimental to the mental, physical and emotional well-being of the students. For the nation to develop and progress towards a knowledge society, it is imperative that the students are taught to cope with stressful stimuli and improve performance. Study-Skills Training is an intervention intended to improve their study and test- taking habits and skills. It is based on a cognitive-deficit model which is directed towards improving a variety of cognitive activities that affect the organization, processing and retrieval of information and thereby help in reducing the experience of examination stress. Systematic desensitization as a process can be used to unlearn anxiety reactions by replacing the anxiety response with a calm, relaxed state. Thus, a combination of study-skills training and systematic desensitization has been shown to be effective and superior in alleviating test anxiety

scholarly journals Development and performance study of a natural silk fiber facial mask paper

2020 ◽  
Vol 15 ◽  
pp. 155892502097575
Author(s):  
Huiling Wang ◽  
Bin Zhou
Keyword(s):  
Silk Fiber ◽  
Entrainment Rate ◽  
Performance Study ◽  
Wet Strength ◽  
Facial Mask ◽  
Antibacterial Performance ◽  
Lower Elongation ◽  
The Common ◽  
And Performance ◽  
Acid Structure

Facial masks are beauty products which composed of a facial mask paper and beauty solution. Silk contains the amino acid structure closest to the human skin, and has the skin-friendly, cosmetic and antibacterial functions, but the common method for making nonwoven facial mask paper is not suitable for silk. In this paper, the silkworm’s spinning path is intervened manually to obtain a smart silk facial mask paper (SMC) of controllable thickness, so that the sericin on the silk fiber is well preserved. In the experiment where the SMC is compared with the nonwoven 384-cuprammonium rayon facial mask paper (CRMC) which is the most widely used in the market, it is found that the ways of forming the two facial mask paper are completely different, and therefore the morphologies under SEM are obviously different. The thickness of the SMC is 0.183 mm and the areal weight of it is 38.0 g/m2. It is very close to the CRMC (0.187 mm, 38.4 g/m2). The porosity of the SMC is 84.0%, which is slightly lower than that of the CRMC (86.3%), but its pores are well distributed. Compared with the CRMC, the smart SMC has higher dry and wet strength, lower elongation, slightly lower air permeability and liquid entrainment rate, and better antibacterial performance.

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