| | | | | | | | | | | | | | | | | | | | | |
<?xml version="1.0" encoding="windows-1252"?> |
<!-- Produced by Southridge Services using EDGARsuite software, Advanced Computer Innovations, Inc., Copyright (C) 2008-2011. www.edgarsuite.com --> |
<link:linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:fil="http://zytcxbrl.com/20110930" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance"> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_DocumentDocumentAndEntityInformation" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_DocumentDocumentAndEntityInformation"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_DocumentDocumentAndEntityInformation"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_CONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_CONSOLIDATEDBALANCESHEETS"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_CONSOLIDATEDBALANCESHEETS"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_BALANCESHEETSPARENTHETICAL" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_BALANCESHEETSPARENTHETICAL"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_BALANCESHEETSPARENTHETICAL"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_CONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_CONSOLIDATEDSTATEMENTSOFOPERATIONS"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_CONSOLIDATEDSTATEMENTSOFOPERATIONS"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_CONSOLIDATEDSTATEMENTSOFCASHFLOWS"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_CONSOLIDATEDSTATEMENTSOFCASHFLOWS"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_DisclosureOrganizationAndBusinessActivity" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_DisclosureOrganizationAndBusinessActivity"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_DisclosureOrganizationAndBusinessActivity"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_DisclosureSummaryOfSignificantAccountingPolicies" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_DisclosureSummaryOfSignificantAccountingPolicies"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_DisclosureSummaryOfSignificantAccountingPolicies"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_DisclosureInventory" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_DisclosureInventory"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_DisclosureInventory"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_DisclosurePropertyAndEquipment" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_DisclosurePropertyAndEquipment"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_DisclosurePropertyAndEquipment"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_DisclosureTechnology" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_DisclosureTechnology"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_DisclosureTechnology"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_DisclosureLineOfCredit" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_DisclosureLineOfCredit"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_DisclosureLineOfCredit"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_DisclosureRelatedPartyNotesPayable" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_DisclosureRelatedPartyNotesPayable"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_DisclosureRelatedPartyNotesPayable"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_DisclosureCommitmentsAndContingencies" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_DisclosureCommitmentsAndContingencies"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_DisclosureCommitmentsAndContingencies"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_DisclosureEquity" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_DisclosureEquity"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_DisclosureEquity"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_DisclosureSubsequentEvents" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_DisclosureSubsequentEvents"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_DisclosureSubsequentEvents"> </link:calculationLink> |
| <link:roleRef roleURI="http://zytcxbrl.com/20110930/role/idr_DisclosurePayablesAndAccruals" xlink:type="simple" xlink:href="zytc-20110930.xsd#idr_DisclosurePayablesAndAccruals"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://zytcxbrl.com/20110930/role/idr_DisclosurePayablesAndAccruals"> </link:calculationLink> |
| </link:linkbase> |