PO4(3-) and SiO3(2-) are often used as modifier to improve stability and aggregating ability of the iron-base coagulants, however, there are few reports about their detailed comparison between the coagulation performance and mechanisms. In this study, three coagulants--polyferric phosphoric sulfate (PFPS), polysilicon ferric sulfate (PFSS), and polyferric sulfate (PFS) were synthesized; their s...

The rise of this regime has been supported (perhaps unwittingly) by governments and central banks.

In this study of coagulation operation, a comparison was made between the optimum jar test values for pH, coagulant and coagulant aid obtained from traditional methods (an adjusted one-factor-at-a-time (OFAT) method) and with central composite design (the standard design of response surface methodology (RSM)). Alum (coagulant) and polymer (coagulant aid) were used to treat a water source with v...

Flokulan yang digunakan dalam proses pemurnian nira perlu diketahui dosis efektifnya agar sesuai dengan persyaratan mutunya. Penelitian ini bertujuan menentukan penggunaan flokulan efektif untuk mengendapkan kotoran dan mengetahui dapat mempengaruhi kualitas clear juice atau encer Pengujian dilakukan meliputi pengujian jar test, penetapan kadar CaO, pengukuran turbiditas, pH, purity (pengukuran...

In this paper, we discuss an approach to detect code copying in open source software. This approach generates a small fingerprint that includes the main features of the class files contained in a Java Archive (Jar) file. By comparing the intrinsic and extrinsic features of the class files, the approach can find the cloned code in anonymous Jar files. This approach provides a tool to detect clon...

We developed three types of covers that are easily fabricated from plastic screen locally manufactured in Thailand. The covers were designed to permit normal use of water jars for drinking, utility water uses, and water storage. Tests of the covers in the laboratory and field demonstrated that they could completely prevent successful development of Aedes aegypti (L.) in water jars. Initial expe...

If depicted objects visually remain where they are, but are linguistically described as moving to new locations (‘onto the table’), subsequent reference to them directs attention to their new locations. But, do these attentional shifts depend on updated spatial screen coordinates, or new object associations? We investigated situations wherein depicted containers moved between spatial locations ...

This study was undertaken to determine the roles of individual alpha/beta 1 integrin heterodimers in promoting cellular interactions with the different attachment-promoting domains of laminin (LN). To do this, antibodies to the integrin beta 1 subunit or to specific integrin alpha subunits were tested for effects on cell attachment to LN, to elastase fragments E1-4 and E1, derived from the shor...