For a century, researchers have used the standard lift coefficient C(L) to evaluate the lift, L, generated by fixed wings over an area S against dynamic pressure, ½ρv(2), where v is the effective velocity of the wing. Because the lift coefficient was developed initially for fixed wings in steady flow, its application to other lifting systems requires either simplifying assumptions or complex ad...

Biogas adalah gas yang dihasilkan dari proses fermentasi bahan organik dalam kondisi tertutup (anaerob) oleh mikroorganisme. Dalam penelitian ini, produksi biogas menggunakan baku kotoran sapi. Kotoran sapi merupakan sumber baik karena mengandung bakteri penghasil metana. Tujuan ini untuk mengetahui pengaruh penambahan EM4 terhadap kualitas dihasilkan. Penelitian dilakukan di Laboratorium PLC, ...

Ph.D. dissertation, Department of Plant Sciences, Syracuse University. KUNZ, E. C., WESTON, W. H., JENNISON, MN. W., SWEET, H. R., AND KITCHENS, G. C. 1954 Process for forming a lignin concentrate. U. S. Patent 2,671,751. LUNDGREN, D. G. ANI) RUSSELL, R. T. 1956 An air-lift laboratory fermentor. Appl. Microbiol., 4, 31-33. NEWCOMB, H. R. AND JENNISON, M. W. 1954 Oxidative respiration of the woo...

McDANIEL, L. E. (Rutgers, The State University, New Brunswick, N.J.), E. G. BAILEY, AND A. ZIMMERL. Effect of oxygen-supply rates on growth of Escherichia coli. II. Comparison of results in shake flasks and 50-liter fermentor. Appl. Microbiol. 13: 115-119. 1965.-Growth of Escherichia coli and chemical changes in the medium were very similar in highly baffled flasks and in a 50-liter fermentor r...

McDANIEL, L. E. (Rutgers, The State University, New Brunswick, N.J.), E. G. BAILEY, AND A. ZIMMERL. Effect of oxygen-supply rates on growth of Escherichia coli. II. Comparison of results in shake flasks and 50-liter fermentor. Appl. Microbiol. 13: 115-119. 1965.-Growth of Escherichia coli and chemical changes in the medium were very similar in highly baffled flasks and in a 50-liter fermentor r...

Inspired by superior flight performance of natural flight masters like birds and insects and based on the ventilating flaps that can be opened and closed by the changing air pressure around the wing, a new flapping wing type has been proposed. It is known that the net lift force generated by a solid wing in a flapping cycle is nearly zero. However, for the case of the ventilated wing, results f...

Analyses were carried out for adsorption of a reactive dye RB5 onto chitin and chitosan under static and dynamic conditions in an air-lift reactor. Assays were conducted for the effect of the type of sorbent and its content in the reactor on adsorption capacity of sorbents examined. The sorbent’s concentration under static conditions and in the reactor reached 5 mg d.m./dm3. In all experimental...

The East Indian sandalwood tree, Santalum album, yields one of the costliest heartwoods and precious essential oil. Unsurprisingly, this endangered forest species is severely affected due to unmet global demands, illegal trade and harvesting, overharvesting and an epidemic mycoplasmal spike disease. In vitro micropropagation endeavours have resulted in defined in vitro stages such as somatic em...

~bstkzcthe open-ended coaxial probe with lift-off is studied the effects of air gap on dielectric measurements. Also, in using a full-wave inalysis, and an uncertainty analysis is presented. The field equations for the following terminations are worked out: (1) the sample extends to x in the positive axial direction, (2) the sample is backed by a well-characterized material, and (3) the sample ...

The blades of a vertical axis wind turbine (VAWT) rotor see an inconsistent angle of attack through its rotation. Consequently, VAWT blades generally use symmetrical aerofoils with a lower lift-to-drag ratio than cambered aerofoils tailored to maximise horizontal axis wind turbine rotor performance. This paper considers the feasibility of circulation controlled (CC) VAWT blades, using a tangent...