scholarly journals ECONOMIC ANALYSIS AND WATERS QUALITY SEAWEED FARMING (Eucheuma cottonii) IN THE DISTRICT OF BANGKEP

2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Saharia Kassa ◽  
Bakri Hasanuddin ◽  
Madinawati Madinawati
Keyword(s):  
The Other ◽  
Economic Aspects ◽  
Suitability Analysis ◽  
Average Income ◽  
Seaweed Farming ◽  
Physical Chemical ◽  
Measurement And Testing ◽  
Water Measurement ◽  
Eucheuma Cottonii

Seaweed farming development received support from local government with “Gema Biru Sulawesi Tengah” which makes seaweed commodities became the competitive commodity across sectors in the region. Nowadays, the demand of the dried seaweeds as well as semi-finished products (semi-finished carrageenan) tends to be increased rapidly because they are classified as healthy food. On the other hand, the farmer in the district of Bangkep relatively still being traditional by planting in the territorial which estimated suitable for seaweed. The Study aims to identify the water potential of seaweed farming and to analyze the economic variables that affecting the production of seaweed based on its deployment area. This research is conducted in Bangkep in 4sub-districts area i.e. Bulagisub-district (Peling Peasa, Bulagi and Kambal village), South Bulagi District (Bulagi, Palabatu, and Lolantang village), South Tingkung district (Tinangkung, Bobu and Gangsal village) and Liang district (Apal, binatuli and Liang village). The determination of locations is done purposively with 56 respondents. The data Analysis used are suitability analysis with water measurement and testing of water sample as well as regression analysis. The research shows that the locations of the farms have water quality which suitable with the seaweed, which shown by the result of the physical-chemical measurement parameters that meet with the growing requirements in the range of achievement 74.00-82.67%. Economic aspects show the average income of the   seaweed farmers are Rp. 1.614.434. Further variables simultaneously independent (age, education, number of dependents, experience, the amount of expanses, and prices) that affect the production of seaweed, while partially only age, experience, amount of expanses, and prices significantly affect the production on the t value of each are 2.57; 3.69; 2.49; and 2.33.

scholarly journals ANALISIS KELAYAKAN DAN STRUKTUR PASAR RUMPUT LAUT DI DESA SANDI KECAMATAN KALEDUPA SELATAN KABUPATEN WAKATOBI

2017 ◽  
Vol 1 (1) ◽  
pp. 1-13
Author(s):  
Waode Alzarliani
Keyword(s):  
Market Structure ◽  
Seaweed Cultivation ◽  
Average Income ◽  
Seaweed Farming ◽  
Per Capita ◽  
The Village ◽  
Marketing Agency

Abstract The problems in this study are (1) how much income earned by farmers from seaweed cultivation activities in Sandi Village, South Kaledupa District (2) How much is the feasibility value of seaweed cultivation by farmers (3) How is the structure of the seaweed market in the Village South Kaledupa District. This research was carried out with the aim to determine (1) the income received by seaweed farmers (2) to determine the feasibility value of seaweed farming (3) to determine the seaweed market structure in Sandi Village, South Kaledupa District. The population in this study were all farmers who cultivated seaweed which amounted to 50 people. Determination of respondents is done by census method by taking all farmers totaling 50 respondents. The results showed that the average income obtained by farmers within 6 months amounted to IDR. 5,576,000 with an average rope length of 1277 meters used by farmers, with an income of IDR 929,333 per capita per month. That seaweed business is feasible to be cultivated and developed. The market structure faced by each marketing agency for seaweed in Sandi village is the same. Farmers and village collectors face an oligopsony market structure. Dry seaweed produced by respondents after being sold to exporters, the seaweed sold back to the Industry in Surabaya to be managed and processed further so that the market structure faced by large traders (exporters) lead to the oligopoly market. Keywords: income, feasibility, market structure, seaweed

Determination of Coating Thickness Using Impulse Excitation and Laser Measurements

2015 ◽  
Vol 801 ◽  
pp. 323-327
Author(s):  
Liviu Bereteu ◽  
Eva Nyaguly ◽  
Gheorghe Drăgănescu ◽  
Dorin Simoiu
Keyword(s):  
Coating Thickness ◽  
Surface Coating ◽  
The Other ◽  
Laser Measurements ◽  
Physical Chemical ◽  
Impulse Excitation ◽  
Development And Validation ◽  
Non Destructive ◽  
Destructive Methods

Coating is an application of a surface finish to another material and it provides the surfaces of manufactured parts with a number of desirable physical, chemical, and appearance qualities. Nearly all manufactured or fabricated products made of metal or having metal components have some types of surface coating. The coating increases sturdiness, prevents corrosion, provides hardness, or gives an attractive finish to an object. The amount of coating applied to a material, that is, the coating thickness, is crucial to the product’s final use and cost. On the other hand, in the case of surfaces subjected to wear, the same thickness is very important in the life of the product. There are several non-destructive methods of measuring coating thickness. The aim of this paper is the development and validation of an impulse excitation technique and laser measurements to determine coating thickness of metallic or nonmetallic surface.

scholarly journals Cianobactérias psâmicas em sedimentos marginais da lagoa Rodrigo de Freitas, Estado do Rio de Janeiro, Brasil

2008 ◽  
Vol 31 (1) ◽  
pp. 43-49
Author(s):  
Fernanda C Magina ◽  
Loreine Hermida da Silva e Silva
Keyword(s):  
Dissolved Oxygen ◽  
Rio De Janeiro ◽  
Morphological Characteristics ◽  
The Other ◽  
Chemical Parameters ◽  
Water And Sediment ◽  
Physical Chemical ◽  
Janeiro State

The Rodrigo de Freitas lagoon is a brackish aquatic body, lies within the coordinates 22º57'02"- 22º52'09" S and 43º11'09" -43º13'03" W, in the Rio de Janeiro State. The psammic cyanobacteria live in the surface of the sediment and between the clastic grains, mainly quartz. The objective of the present study was identification of the psammic cyanobacteria found in the marginal portion of the lagoon and the determination of physical -chemical parameters (dissolved oxygen, salinity, temperature of the water and sediment and pH) in the places of sampling of the psammic cianobacteria. Sampling during the year of 2007 had been carried through, in the period of ebb tide of the lagoon, where five sample stations had been established. The taxonomic analisys was made with fresh and permanent slides, through optic microscope mensuration, that allowed to observe its classic morphological characteristics. The families Chroococcaceae Nägeli 1849 and Synechococcaceae Komárek & Anagnostidis 1995 is most frequent, for 41% and 18,2% respectively of the joined species. The other observed families presented the following percentages: Phormidiaceae Anagnostidis & Komárek 1988 with 13,4%; Entophysalidaceae Geitler 1925; Schizothrichaecae Anagnostidis & Komárek 1988; Oscillatoriaceae former (Harvey) Kirchener 1898 and Nostocaceae Kutzing 1943 each one with 4,5%

Transmission Electron Microscopy of Protein Macromolecules

1971 ◽  
Vol 29 ◽  
pp. 424-425
Author(s):  
Henry S. Slayter
Keyword(s):  
Biological Systems ◽  
Metal Vapor ◽  
Resolving Power ◽  
Electron Microscopic ◽  
Chemical Methods ◽  
Molecular Weights ◽  
The Past ◽  
Physical Chemical ◽  
Transmission Electron

Electron microscopic methods have been applied increasingly during the past fifteen years, to problems in structural molecular biology. Used in conjunction with physical chemical methods and/or Fourier methods of analysis, they constitute powerful tools for determining sizes, shapes and modes of aggregation of biopolymers with molecular weights greater than 50, 000. However, the application of the e.m. to the determination of very fine structure approaching the limit of instrumental resolving power in biological systems has not been productive, due to various difficulties such as the destructive effects of dehydration, damage to the specimen by the electron beam, and lack of adequate and specific contrast. One of the most satisfactory methods for contrasting individual macromolecules involves the deposition of heavy metal vapor upon the specimen. We have investigated this process, and present here what we believe to be the more important considerations for optimizing it. Results of the application of these methods to several biological systems including muscle proteins, fibrinogen, ribosomes and chromatin will be discussed.

Determination of the lattice translation across {110} APBs in GaAs

1988 ◽  
Vol 46 ◽  
pp. 600-601
Author(s):  
D.R. Rasmussen ◽  
N.-H. Cho ◽  
C.B. Carter
Keyword(s):  
Grain Boundaries ◽  
Lower Energy ◽  
Antiphase Boundary ◽  
The Other ◽  
Boundary Structure ◽  
Interface Plane ◽  
Inversion Symmetry ◽  
High Angle ◽  
Equilibrium Distance

Domains in GaAs can exist which are related to one another by the inversion symmetry, i.e., the sites of gallium and arsenic in one domain are interchanged in the other domain. The boundary between these two different domains is known as an antiphase boundary [1], In the terminology used to describe grain boundaries, the grains on either side of this boundary can be regarded as being Σ=1-related. For the {110} interface plane, in particular, there are equal numbers of GaGa and As-As anti-site bonds across the interface. The equilibrium distance between two atoms of the same kind crossing the boundary is expected to be different from the length of normal GaAs bonds in the bulk. Therefore, the relative position of each grain on either side of an APB may be translated such that the boundary can have a lower energy situation. This translation does not affect the perfect Σ=1 coincidence site relationship. Such a lattice translation is expected for all high-angle grain boundaries as a way of relaxation of the boundary structure.

Determination of the Burgers vector of a dislocation in a Fe-Mn alloy by weak-beam image in HVEM

1978 ◽  
Vol 36 (1) ◽  
pp. 330-331
Author(s):  
Y. Ishida ◽  
H. Ishida ◽  
K. Kohra ◽  
H. Ichinose
Keyword(s):  
High Order ◽  
Simulation Technique ◽  
The Other ◽  
Image Simulation ◽  
Diffraction Vector ◽  
Burgers Vector ◽  
Weak Beam ◽  
Beam Image ◽  
Edge Component

IntroductionA simple and accurate technique to determine the Burgers vector of a dislocation has become feasible with the advent of HVEM. The conventional image vanishing technique(1) using Bragg conditions with the diffraction vector perpendicular to the Burgers vector suffers from various drawbacks; The dislocation image appears even when the g.b = 0 criterion is satisfied, if the edge component of the dislocation is large. On the other hand, the image disappears for certain high order diffractions even when g.b ≠ 0. Furthermore, the determination of the magnitude of the Burgers vector is not easy with the criterion. Recent image simulation technique is free from the ambiguities but require too many parameters for the computation. The weak-beam “fringe counting” technique investigated in the present study is immune from the problems. Even the magnitude of the Burgers vector is determined from the number of the terminating thickness fringes at the exit of the dislocation in wedge shaped foil surfaces.

Procedures for the Quantitative Determination of Autoprothrombin C

1962 ◽  
Vol 08 (03) ◽  
pp. 434-441 ◽  
Author(s):  
Edmond R Cole ◽  
Ewa Marciniak ◽  
Walter H Seegers
Keyword(s):  
Quantitative Determination ◽  
Plasma Sample ◽  
Quantitative Measure ◽  
The Other ◽  
Clotting Time ◽  
Bovine Plasma ◽  
Autoprothrombin C

SummaryTwo quantitative procedures for autoprothrombin C are described. In one of these purified prothrombin is used as a substrate, and the activity of autoprothrombin C can be measured even if thrombin is in the preparation. In this procedure a reaction mixture is used wherein the thrombin titer which develops in 20 minutes is proportional to the autoprothrombin C in the reaction mixture. A unit is defined as the amount which will generate 70 units of thrombin in the standardized reaction mixture. In the other method thrombin interferes with the result, because a standard bovine plasma sample is recalcified and the clotting time is noted. Autoprothrombin C shortens the clotting time, and the extent of this is a quantitative measure of autoprothrombin C activity.

Determination of Factor XIII Activity and of Factor XIII Inhibitors Using an Ammonium-Sensitive Electrode

1983 ◽  
Vol 50 (02) ◽  
pp. 563-566 ◽  
Author(s):  
P Hellstern ◽  
K Schilz ◽  
G von Blohn ◽  
E Wenzel
Keyword(s):  
Factor Xiii ◽  
Normal Subjects ◽  
The Other ◽  
Activity Measurement ◽  
Factor Xiii Deficiency ◽  
Assay Procedure ◽  
Stabilization Factor ◽  
Release Method ◽  
Sensitive Electrode

SummaryAn assay for rapid factor XIII activity measurement has been developed based on the determination of the ammonium released during fibrin stabilization. Factor XIII was activated by thrombin and calcium. Ammonium was measured by an ammonium-sensitive electrode. It was demonstrated that the assay procedure yields accurate and precise results and that factor XIII-catalyzed fibrin stabilization can be measured kinetically. The amount of ammonium released during the first 90 min of fibrin stabilization was found to be 7.8 ± 0.5 moles per mole fibrinogen, which is in agreement with the findings of other authors. In 15 normal subjects and in 15 patients suffering from diseases with suspected factor XIII deficiency there was a satisfactory correlation between the results obtained by the “ammonium-release-method”, Bohn’s method, and the immunological assay (r1 = 0.65; r2= 0.70; p<0.01). In 3 of 5 patients with paraproteinemias the values of factor XIII activity determined by the ammonium-release method were markedly lower than those estimated by the other methods. It could be shown that inhibitor mechanisms were responsible for these discrepancies.

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