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    <element id="qsep_CollaborationAgreementMember" name="CollaborationAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_OperatingSegmentMember" name="OperatingSegmentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="qsep_CommonStockIssuedOnConversionOfNotesPayableShares" name="CommonStockIssuedOnConversionOfNotesPayableShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_RelativeFairValueOfWarrantsIssuedWithConvertibleNotesValue" name="RelativeFairValueOfWarrantsIssuedWithConvertibleNotesValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_StockIssuedDuringPeriodValueCommonStockIssuedOnExerciseOfStockOptionsAndWarrants" name="StockIssuedDuringPeriodValueCommonStockIssuedOnExerciseOfStockOptionsAndWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_StockIssuedDuringPeriodSharesCommonStockIssuedOnExerciseOfStockOptionsAndWarrants" name="StockIssuedDuringPeriodSharesCommonStockIssuedOnExerciseOfStockOptionsAndWarrants" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_CommonStockIssuedUponCashlessExerciseOfWarrantsToSettleVendorPayables" name="CommonStockIssuedUponCashlessExerciseOfWarrantsToSettleVendorPayables" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_CommonStockIssuedUponCashlessExerciseOfWarrantsToSettleVendorPayablesShares" name="CommonStockIssuedUponCashlessExerciseOfWarrantsToSettleVendorPayablesShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_FairValueOfVestedWarrantsIssuedForServices" name="FairValueOfVestedWarrantsIssuedForServices" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_FairValueOfVestedStockOptionsIssuedToOfficersAndDirectors" name="FairValueOfVestedStockOptionsIssuedToOfficersAndDirectors" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_FairValueOfVestedOptionsAndWarrants" name="FairValueOfVestedOptionsAndWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_ProceedsFromExerciseOfOptionsAndWarrants" name="ProceedsFromExerciseOfOptionsAndWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="qsep_ConversionOfConvertibleNotesAndAccruedInterestIntoCommonStock" name="ConversionOfConvertibleNotesAndAccruedInterestIntoCommonStock" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_CashlessExerciseOfWarrantsAppliedToSettlementOfAccountsPayable" name="CashlessExerciseOfWarrantsAppliedToSettlementOfAccountsPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_RelativeFairValueOfWarrantsIssuedWithConvertibleNotes" name="RelativeFairValueOfWarrantsIssuedWithConvertibleNotes" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_WarrantsPolicyTextBlock" name="WarrantsPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockWarrantPlansByExercisePriceRangeTextBlock" name="ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockWarrantPlansByExercisePriceRangeTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
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    <element id="qsep_TotalOutstandingFees" name="TotalOutstandingFees" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_SharebasedCompensationArrangementBySharebasedPaymentAwardWarrantsOutstandingWeightedAverageRemainingContractualTerm2" name="SharebasedCompensationArrangementBySharebasedPaymentAwardWarrantsOutstandingWeightedAverageRemainingContractualTerm2" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
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    <element id="qsep_FairValueOfWarrantsGranted" name="FairValueOfWarrantsGranted" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="qsep_WarrantsExercisedValue" name="WarrantsExercisedValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="qsep_RetentionBonusToBePaid" name="RetentionBonusToBePaid" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="qsep_EmployeeBenefitPayrollAndRelated" name="EmployeeBenefitPayrollAndRelated" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="qsep_ConsultingRelatedToIntellectualProperty" name="ConsultingRelatedToIntellectualProperty" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="qsep_DiscountConvertedMember" name="DiscountConvertedMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
</schema>
