Muroran-IT Academic Resource Archive
Not a member yet
5694 research outputs found
Sort by
On a Descriptive Study of a Word-stress System : From a Fieldworker\u27s Point of View
Get PDFThere have been much scholarly work on word-stress systems around the world, and many theoretical issues seem to have been solved. However, several questions will still soon arise once you conduct field researches on a stress accent language: How do we verify it\u27s accent system as word-stress system? What prosodic features does a stress accent language has to have? Is it always straightforward to elicit wordstress patterns in research interviews? Is a stress accent language which has another prosodically distinctive feature still diagnosed as a stress accent language? In the present paper, the author, who has been involved with descriptive investigation into the word-stress systems of the North Germanic languages, attempts to resolve these questions based on his experience and knowledge acquired through descriptive field researches.ๅญฆ่ก่ซ
The Effect of Covid-19 pandemic in the aspects of Disaster Stress : Compare with the effect of 2018 Iburi East Area Earthquake
Get PDFAfter Covid-19 pandemic , a questionnaire was conducted on the psychophysiological situation and the implementation level of preventive method and stress level toward the student who affected by Iburi East Earthquake. It is indicated that the effect of psychophysiological situation is almost same level with immediately after earthquake and prevention method,especially mask and behavior restriction, are serious stressor. Covid-19 pandemic strikes people multiple stress as disaster stress.ๅญฆ่ก่ซ
ฮฑ-Sm2S3ใซใใใ็ฐๅธธ็ฃๆฐไผๅฐ
Get PDFๅธๅ้ก็กซๅ็ฉฮฑ-R2S3๏ผR = La-DyใPmใจEuใ้คใ๏ผใฏใ็ฉบ้็พคPnmaใฎ็ดๆนๆถ็ตๆถๆง้ ใๆใใ2ใคใฎ็ฌ็ซใใๅธๅ้กใตใคใR1, R2ใๆใฃใฆใใใใใฎไธ้ฃใฎฮฑ-R2S3ใงใฏใใปใผๅ
จใฆใฎๅๅ็ฉใ1ใคใพใใฏ2ใคใฎ้ฃ็ถใใๅๅผท็ฃๆง่ปข็งปใ็คบใใใใใใฮฑ-Sm2S3ใฎใฟใฏ10 Kไปฅไธใฎไฝๆธฉใง้ฃ็ถใใๅผฑๅผท็ฃๆง(WFM)่ปข็งปใ็คบใใใใฎ็ฃๅใฎ็นๅพด็ใชๆฏใ่ใใฏๅๅใซ่งฃๆใใใฆใใชใใฮฑ-Sm2S3ใฎๆตๆ็ใฏ้ซๆธฉๅด่ปข็งปๆธฉๅบฆใฎ็ดไธใงๅทจๅคงใชๅขๅคงใจๅๅพฉใ็คบใใใใฎ100ๅใ่ถ
ใใ็ฐๅธธใชๅขๅคงใฏ้ๅธธใซ้ญ
ๅ็ใงใใใใพใac้ขๅ
ใซใใใ็ฃๅๅฎนๆ่ปธใซ้ขใใๅฅๅฆใชไบค้ฏใ่ฆณๅฏใใใฆใใใฮฑ-Sm2S3ใฎ็นๅพด็ใช็ฃๆฐ่ปข็งปใจๆฐๅฅใช่ผธ้็นๆงใฎๆฉๆงใๆใใใซใใใใใซใๅ็ตๆถใจ็ผ็ตไฝ่ฉฆๆใ็จใใฆไฝๆธฉ็ฉๆงใๆธฌๅฎใใใๆฐ็ธๅๅญฆ่ผธ้ๆณใซใใใb่ปธๆนๅใซ้ทใใฆ6ใคใฎๅด้ขใๆใค้็ถๅ็ตๆถใ่ฒๆใใใใๆธฌๅฎใซ็จใใๅ
จ่ฉฆๆใฏใใใจใ11ๅใฎๅด้ขใๆใคใใฎใงใใฃใฆใใX็ทๅๆใฎๆๆณใซใใๅๆถใงใฏใชใๅ็ตๆถใงใใใใจใ็ขบ่ชใใใใ11ๅด้ขใๆใค่ฉฆๆใฎ็ฃๅใฏ้ๅธธใฎ 6 ๅด้ขใฎ่ฉฆๆใจๆฌ่ณช็ใซๅใใงใใฃใใใพใใ็ฃๅๅฎนๆ่ปธใa่ปธใจc่ปธใฎไธกๆนใฎ่ฉฆๆใๅญๅจใใใใจใๆฌ็ ็ฉถใซใใใฆใ็ขบ่ชใใใใ้ๆฌก็ใชWFM่ปข็งปใ็ขบ่ชใใCurieๆธฉๅบฆใTC1๏ผ3.6 KใจTC2๏ผ1.8 Kใจๆฑบๅฎใใใๅผฑๅผท็ฃๆง่ปข็งปๅพใฎ็ฃๅ ดไธญๅทๅด(FC)้็จใซใใใ็ฃๅใฏใ็ฃๅๅฎนๆๆนๅใงใใฃใฆใSm3+ใฎ้ฃฝๅ็่ซๅคใฎ1/18ใจๅฐใใใๅฐ้ฃๆนๅใงใฏใใใซๅฐใใใใใฎ็นๅพด็ใชWFM ็นๆงใฏใb่ปธๆนๅใซๅๅผท็ฃๆง็ใซ็งฉๅบๅใใSm3+ใฎ็ฃๆฐใขใผใกใณใใๅพใใใจใซใใฃใฆ็ใใๆญฃๅณใฎๅผท็ฃๆง็ๅฏไธใซใใใใฎใงใใใจ่ใใใใใๅ็ตๆถใฎ้ถ็ฃๅ ดๅทๅด(ZFC)็ฃๅใฎTC1็ดไธใฎใใผใฏใฏ็ฃๅบใฎๅฝขๆใซใใฃใฆ่ตทใใใ็ผ็ต่ฉฆๆใฎFC/ZFC็ฃๅใฎๅๆงใฎใใผใฏใฏๆญฃๅณใฎๅผท็ฃๆงๆๅใฎๅผทใ็ฐๆนๆงใซ่ตทๅ ใใใจ็ต่ซใใใ็ฃๆฐๆฏ็ฑใจ็ฃๆฐใจใณใใญใใผใฎ่งฃๆใใใๅ่ปข็งปๆธฉๅบฆใซใใใฆไธใคใฎSmใตใคใใฎใฟใฎ็ฃๆฐใขใผใกใณใใ็งฉๅบๅใใใใฎๅบๅบ็ถๆ
ใฏSm3+ใฏใฉใใผในไบ้้
ใงใใใจ็ต่ซใใใใ็ฃๆฐใจใณใใญใใผใฏ็ฃๅ ดๆนๅใซๅฏพใใฆๆฅตใใฆ็ฐๆน็ใงใใใใใฎๅคใฏๅฐใใใใ็ฃๅ ดๆนๅใฎ้ใใซใใฃใฆ็ฐใชใ็ฃๆฐ็ฑๅนๆใๆๅพ
ใงใใใๆฌ็ ็ฉถใซใใใฆใฏใTC1็ดไธใฎ็ญใๆธฉๅบฆ็ฏๅฒใซใใใ้ปๆฐๆตๆ็ฯใฎ็ฐๅธธใชๅขๅคงใฏใ็ฃๅๅฎนๆ่ปธใฎ็ฐใชใไธกๅ็ตๆถใจใใซ5ๆกไปฅไธใซ้ใใใไธกๅ็ตๆถใซใใใฆใ็ฃๅ ดๅฐๅ ใซใใใใฎๅทจๅคงใชๅขๅคงใฏๆฅ้ใซๆๅถใใใใใ็ก็ฃๅ ดไธใฎฯ(T)ๆฒ็ทใจ็ฃๅ ดใซใใๆๅถใฎใใๆนใฏ็ฃๅๅฎนๆ่ปธใซใใฃใฆ็ฐใชใ็นๆงใ็คบใใใใฎTC1็ดไธใฎ็พ่ฑกใฏใSm3+ใขใผใกใณใใฎ็ญ่ท้ข็งฉๅบใฎๅฝขๆใจๆญฃๅณๅผท็ฃๆงๆๅใฎ็ฃๅบๅฝขๆใซ่ตทๅ ใใใพใ่คๆฐใฎ็ฃๅๅฎนๆ่ปธใฎๅญๅจใจใๅฏๆฅใซ้ข้ฃใใฆใใใจ่ใใใใใ็ฃๅๅฎนๆ่ปธใฎ่ฉฆๆไพๅญๆงใฏใSm3+ใฎๅบๅบ็ถๆ
ใฎ้ป่ทๅๅธใซ่คๆฐใฎๆบๅฎๅฎ็ถๆ
ใๅญๅจใใใใจใซ่ตทๅ ใใใจ่ใใใใใRare earth sesquisulfides ฮฑ-R2S3 (R = La-Dy, except Pm and Eu) possess an orthorhombic crystal structure with the space group Pnma, which has two inequivalent rare earth sites R1 and R2. In this series of ฮฑ-R2S3, almost all compounds exhibit one or two successive antiferromagnetic transitions. However, only ฮฑ-Sm2S3 shows successive weak-ferromagnetic (WFM) transitions at low temperatures below 10 K, and the characteristic behavior of the magnetization has not been fully elucidated. In addition, the resistivity of ฮฑ-Sm2S3 shows an enormous enhancement and restoration just above higher transition temperature and this anomalous enhancement by a factor of more than 100 is very attractive. Additionally, a strange crossing with respect to the easy-magnetization axis in the ac-plane had been observed. To clarify the mechanism of the characteristic magnetic transitions and the novel transport properties in ฮฑ-Sm2S3, low-temperature physical properties were investigated using single crystal and sintered samples.Needle-like single crystals having the longer direction along the b-axis and 6 side planes were grown by a chemical vapor transport method. All samples used for measurements, even it has 11 side planes, were confirmed by an XRD method to be single crystals but not twins. The magnetization of 11-planes sample was the same essentially as that of the normal 6-planes samples. In addition, the existence of both samples with a and c easy axes of magnetization was confirmed in this study as well. The successive WFM transitions were confirmed and the Curie temperatures are determined as TC1 = 3.6 K and TC2 = 1.8 K. The magnetization value in field cooling (FC) process after the weak ferromagnetic transitions is as small as 1/18 of the theoretical saturation value of Sm3+ even in the easy direction, and much smaller in the hard direction. The characteristic WFM properties are considered to be due to the net ferromagnetic contribution resulting from the canting of the antiferromagnetically ordered Sm3+ magnetic moment along the b-axis. It was concluded that the peak just above TC1 in the zero-field cooling (ZFC) magnetization of single crystals arises from the formation of magnetic domains, while a similar peak in the FC/ZFC magnetization of the sintered sample is due to the strong anisotropy of the net ferromagnetic component.From the analysis of the magnetic specific heat and entropy, it was concluded that the magnetic moments on only one Sm site is ordered at each transition temperature, and its ground state is a Sm3+ Kramers doublet. The magnetic entropy is extremely anisotropic with respect to the magnetic field direction, and although the values are small, different magneto-thermal effects can be expected for different magnetic field directions. The anomalous enhancement of electrical resistivity in the narrow temperature range just above TC1 in this study reached more than five orders of magnitude for both single crystals with different easy magnetization axis. In both single crystals, the huge enhancement is rapidly suppressed by the application of a magnetic field, but the ฯ(T) curves under no magnetic field and the way of suppression by magnetic fields show different characteristics depending on the easy magnetization axis. This phenomenon just above TC1 is considered to be caused by the formation of short-range order of Sm3+ moments and the formation of magnetic domains of the net ferromagnetic component, and also be closely related to the existence of multiple easy-magnetization axis. The sample dependence of the easy magnetization axis is considered to be due to the existence of multiple metastable states in the ground-state charge distribution of Sm3+.ๅฎค่ญๅทฅๆฅญๅคงๅญฆ (Muroran Institute of Technology)ๅๅฃซ๏ผๅทฅๅญฆ
ใจใณใใใซๅ ๅทฅใซใใใ็ฑๅคๅฝขใฎ็ตฑ่จ็ๆจๅฎใซ้ขใใ็ ็ฉถ
Get PDFใจใณใใใซๅ ๅทฅใซใใใๅๅ็ฑใซใใๅทฅไฝ็ฉใฎๅคๅฝขใฏใๅ ๅทฅ็ฒพๅบฆใซๅคงใใชๅฝฑ้ฟใไธใใพใใๅทฅไฝ็ฉใฎๅคๅฝขใๅ ๅทฅไธญใซ็ดๆฅๆธฌๅฎใใใใจใฏใๅ ๅทฅใใญใปในใฎๅคไนฑใฎใใใซๅฐ้ฃใงใใไธๆนใๅทฅไฝ็ฉใฎๅฑๆ็ใชๆธฉๅบฆใฏใไธ่ฌ็ใชๆธฌๅฎๆนๆณใง็ฐกๅใใคๆญฃ็ขบใซๆธฌๅฎใงใใพใใใใฎ็ ็ฉถใฎ็ฎ็ใฏใๅทฅไฝ็ฉใฎๅคๅฝขใ็ฃ่ฆใใๆนๆณใ้็บใใใใจใงใใๅฐ้็็ฃใซใใใๅทฅไฝ็ฉใฎ็ฑ็ถๆ
ใๆจๅฎใใใใใซใๅฑๆๆธฉๅบฆๆธฌๅฎใจ็ฑใทใใฅใฌใผใทใงใณใ็ตใฟๅใใใใปใณใตใผ้
็ฝฎๅ็ฑใทใใฅใฌใผใทใงใณใๆๆกใใใฆใใพใใๆฌ็ ็ฉถใงใฏใ่จ็ฎๆ้ใ็ญ็ธฎใใใใใซใๆธฌๅฎใใใๆธฉๅบฆใใๅทฅไฝ็ฉใฎๅคๅฝขใๆจๅฎใใ็ต้จ็ใขใใชใณใฐๆๆณใๅฐๅ
ฅใใพใใไฟก้ ผๆงใฎ้ซใๆจๅฎใฎใใใซใฏใ้ฉๅใชๆธฌๅฎใใคใณใใ้ธๆใใใใจใไธๅฏๆฌ ใงใใใใพใใพใชๆฉๆขฐๅ ๅทฅ็ถๆณใซใใใ็ฑๅคๅฝขใจๆธฌๅฎ็นใฎๆธฉๅบฆใจใฎ้ขไฟใ็ขบ็ซใใใใใซใ็ตฑ่จๆ
ๅ ฑใซๅบใฅใ่จๆธฌ็น้ธๆๆนๆณใๅค้็ทๅฝขๅๅธฐ (MLR) ๆณใไฝฟ็จใใฆๆๆกใใพใใใจใณใใใซๅ ๅทฅใใญใปในใฎ FEM ใใผในใฎ็ฑๅคๅฝขใทใใฅใฌใผใทใงใณใไฝฟ็จใใใใจใซใใใๅ ๅทฅ็นใงไบๆธฌใใใๅคๅฝขใฎๆ็ณปๅๆ
ๅ ฑใๅบๅๅคๆฐใจใใๆธฌๅฎ็นใฎๆธฉๅบฆใฎๆ็ณปๅๆ
ๅ ฑใๅ
ฅๅๅคๆฐใจใใใใจใๅฏ่ฝใซใชใใพใใ่ตคๆฑ ๆ
ๅ ฑ้ๅบๆบ๏ผAIC๏ผใ่ฉไพกใใใใจใง็ฌ็ซใชๆธฌๅฎ็นๆฐใๆฑบๅฎใใpๅคๆๆฐใ็จใใฆๆๅนใชๆธฌๅฎ็นใ้ธๆใใพใใๆๆกใใใไฝ็ณป็ใชๆง็ฏๆนๆณใฏใใทใใฅใฌใผใทใงใณใใผในใฎใฑใผในในใฟใใฃใซใใฃใฆ่ฉไพกใใใพใใFEM ใทใใฅใฌใผใทใงใณใซใใฃใฆ่จ็ฎใใใๅคๅฝขใจๅทฅไฝ็ฉใฎๅคๅฝข็จใซๆง็ฏใใใ็ตฑ่จใใผในใฎใขใใซใฏใใไธ่ดใใพใใๆง็ฏใใใขใใซใฏใๆๅฐ้ใฎๆธฌๅฎ็นๆฐใงๅทฅไฝ็ฉใฎๅคๅฝขใ่กจ็พใงใใพใใใจใณใใใซๅ ๅทฅใใญใปในไธญใฎใใพใใพใชๅข็ๆกไปถใงใฎๆๆกใใใ็ตฑ่จใขใใซใฎ็ฒพๅบฆใซใคใใฆ่ญฐ่ซใใๅพใไฟฎๆญฃไฟๆฐ็ตฑ่จใขใใซ (MCSM) ใจ่ชฟๆด็ตฑ่จใขใใซ (ASM) ใจใใ 2ใคใฎไฟฎๆญฃ็ตฑ่จใขใใซใใ้ขไฟใใใ้ฉๅใซ่กจ็พใใใใใซๆๆกใใใพใใใ2ใคใฎไฟฎๆญฃ็ตฑ่จใขใใซใฎ่ชคๅทฎๅๆใใใใใ่ญฐ่ซใพใใใใใฎ็ตๆใMCSM ใจ ASM ใฏใฉใกใใใๆธฌๅฎ็นใฎๆธฉๅบฆใจใใพใใพใชๅข็ๆกไปถใงใฎๅ ๅทฅ็นใงใฎ็ฑๅคๅฝขใจใฎ้ขไฟใใใๆญฃ็ขบใซ่จ่ฟฐใงใใใใจใๆใใใซใชใใพใใใThe thermal workpieceโs deformation in end-milling process has significant effect on accuracy of machining. In-process direct measurement of workpiece deformation is difficult because of machining process disturbance. On the other hand, local temperatures of workpiece can be easily and accurately measured by common measuring methods. The objective of this research is to develop a method to monitor the workpieceโs deformations. In order to estimate workpieceโs thermal states in small-lot production, a sensor-configured thermal simulation has been proposed by combining local temperature measurements and thermal simulation. To accelerate the process time, an empirical modeling method to estimate workpieceโs deformation from measured temperatures is introduced. It is indispensable to select appropriate measuring points for reliable estimation. In order to establish a relationship between thermal deformation and temperatures of measuring points in various machining situation, a statistic-based selection method is proposed by using the Multiple Linear Regression (MLR) method. By using FEM-based thermal simulation during end-milling process, predicted time-series of deformation at the machining point are regarded as output variable while time-series of temperature of measuring points are regarded as input variables. The similarity of measuring points is evaluated by using Akaike\u27s Information Criterion (AIC), and effective measuring points are selected by using p-value index. Proposed systematic construction method is evaluated by simulation-based case studies. A constructed temperature-based model for workpieceโs deformation shows good agreement to the deformation calculated by the FEM simulation. The constructed model can represent workpieceโs deformation with the minimum number of measuring points. After discussing the accuracy of proposed statistic model in various boundary conditions which correspond to various end-milling situation, two modified statistic model, such as modified coefficient statistic model (MCSM) and the adjusted statistic-model (ASM), were proposed to achieve more suitable expression of the relationship between monitoring points temperature and thermal deformation at machining point of workpiece surface. The error analysis of two modified statistic model were respectively discussed. Consequently, MCSM and ASM are both more accuracy to describe the relationship between temperature of monitoring points and thermal deformation at machining point in various boundary condition.ๅฎค่ญๅทฅๆฅญๅคงๅญฆ (Muroran Institute of Technology)ๅๅฃซ๏ผๅทฅๅญฆ๏ผๅฝใขใคใใ ใฏ่ฆๆจใฎใฟใฎๅ
ฌ้ใซใชใฃใฆใใพใ(2024-03-23
ใใฉใคใขใใทใฅใใใณ้ซ็ในใฉใฐๅพฎ็ฒๆซใ็จใใใณใณใฏใชใผใใฎๅๅฎณใจใฎ่คๅๅฃๅใซ้ขใใ็ ็ฉถ
Get PDFไธ่ฌ็ใซใๆง้ ็ฉใซ็ใใฆใใๅฃๅๅๅ ใไธใคใซ็นๅฎใงใใชใใใใชใใก่คๅๅฃๅใจๅผใฐใใๅฃๅ็พ่ฑกใๅคใใฟใใใใใใซใชใฃใฆใใใใใฎๅ ดๅใงใฏๅๅฃๅ็พ่ฑกใฎ็ธไบไฝ็จใซใใฃใฆใ็บ็ใใๅฃๅๅฝขๆ
ใ่ค้ใงใๅไธใฎๅฃๅใขใใซใ่ถณใๅใใใฆใใฎ่ค้ๅฃๅ่ฉไพกใ่กใใใจใใงใใชใใไธๆนใ็ฐๅข่ฒ ่ทไฝๆธใฎ่ฆณ็นใใใปใกใณใ็็ฃๆใซ็บ็ใใCO2ใฎๅๆธใ็ฃๆฅญๅฏ็ฃ็ฉใฎๆๅนๅฉ็จใๆฑใใใใใปใกใณใ็ฑๆฅใฎCO2ใๅๆธใใใใจใใงใใ้ซ็๏ผBFS๏ผใปใกใณใใใใณใใฉใคใขใใทใฅ๏ผFA๏ผใปใกใณใใฎ็ ็ฉถใ้ฒใใใใฆใใใใใฎ่ๆฏใจใใฆใๅฏๅทๅฐใซใใใฆใๅๅฎณใ็น่ฒใงใBFSใFAใ็จใใใณใณใฏใชใผใใฎๅๅฎณใฎ่คๅๅฃๅใซๅฏพใใ้ขๅฟใ้ซใพใใคใคใใใๆค่จใใๅฟ
่ฆใใใใๅๅฎณใจๅกฉๅฎณใฎ่คๅๅฃๅใซใคใใฆใฏๅคใใฎๆขๅพ็ ็ฉถใใใใใไธญๆงๅใจๅๅฎณใใขใซใซใช้ชจๆๅๅฟ๏ผASR๏ผใจๅๅฎณใฎ่คๅๅฃๅใซ้ขใใๅ ฑๅใฏๅฐใชใใใใใงใๆฌ็ ็ฉถใงใฏใBFSใFAใ็จใใใณใณใฏใชใผใใฎๆงๅใจๅๅฎณใๅๅฎณใจASRใฎ่คๅๅฃๅใฎๅฃๅๆฉๆงใๆๆกใใฆใใใ1.ใNonAEใงใฏใไธญๆงๅใซใใใOPCใจไฝ็ฝฎๆ็ใฎBFSใณใณใฏใชใผใใฎ่ๅๅฎณๆงใไฝไธใใฆใใใใ้ซ็ฝฎๆ็ใฎBFS็ฐฟ่ๅๅฎณๆงใๅไธใใฆใใใBFSใฎๆทปๅ ใซใใใNon-AEใณใณใฏใชใผใใงใไธญๆงๅๅพใฎ่ๅๅฎณๆงใฏไฝไธใใฆใใใใAEใณใณใฏใชใผใใงใไธญๆงๅๅพใฎ่ๅๅฎณๆงใฏไฝไธใใฆใใชใใ2๏ผ FAใณใณใฏใชใผใใซใคใใฆใไธญๆงๅใซใใ่ๅๅฎณๆงใๅคๅใใฆใใชใใๅธๆฐด็ใซๆฏในใใณใณใฏใชใผใใฎ่ๅๅฎณๆงใในใฑใผใชใณใฐใ็ดฐๅญๆง้ ใจใฎใฎ้ขไฟใฏ่ชใใใใใFAใฎๆทปๅ ใซใใใNon-AEใณใณใฏใชใผใใงใไธญๆงๅๅพใฎ่ๅๅฎณๆงใฏไฝไธใใฆใใใใAEใณใณใฏใชใผใใงใไธญๆงๅๅพใฎ่ๅๅฎณๆงใฏไฝไธใใฆใใชใใ3๏ผOPCใณใณใฏใชใผใใงใฏใๅ
่กใฎASRใซใใใๅๅฎณใไฟ้ฒใใใใๅ
่กใฎๅๅฎณใซใใใASRใซใใ่จๅผตใไฟ้ฒๆๅถใใใใBFSใFAใณใณใฏใชใผใใงใๅๅฎณใซ้ขใใใใASRใฎ่จๅผตใๅคงๅน
ใซๆธใใใใใBFSใFAใฎๆททๅ
ฅใซใใใASRใๆๅถใใใใจใงใใฒใณๅฒใใฎ็บ็ใๅฐใชใใASRๅพใฎ่ๅๅฎณๆงใๅไธใใใใจใ็ขบ่ชใงใใใๅฎ็ฐๅขไธใงใJIS่ฆๆ ผใซใใใAEใณใณใฏใชใผใใฎไฝฟ็จใฏๆฎ้ใจใใฆใใใCO2ใฎๅๆธใใใใใซใ็ฐๅข่ฒ ่ทไฝๆธใชใตใคใฏใซๆใจใใBFSใFAใฎๆจ้ฒใใใจใจใใซใใณใณใฏใชใผใใฎ้ทๆๅผทๅบฆใชใฉๆนๅใใใใใใไธๆนใBFSใFAใฎไฝฟ็จใฏๅกฉๅฎณใไธญๆงๅใใใณใณใฏใชใผใใฎ่ๅๅฎณๆงใๅคๅใใฆใใชใใฆใใใใซASRใๅใใใณใณใฏใชใผใใฎ่ๅๅฎณๆงใๅไธใงใใใ่คๅๅฃๅใฎ่ฆณ็นใใใๅปบ็ฏๅ้ใงใBFSใFAใฎไฝฟ็จใๅบใๆฎๅใใใใจใๆๆกใใใFor concrete structures in cold regions, the frost damage often occurs in the winter construction of concrete, which seriously threatens the performance and structural safety of concrete. The other concrete deteriorations such as salt damage, carbonation, and alkali-silica reaction (ASR) are also related closely to the durability of concrete. So far, the single deterioration mechanism is mainly studied in almost previous studies and the results have been accumulated substantially. However, for the actual concrete structures, it is not possible to suffer a single deterioration only. On the hand, in recent years, in the trend of CO2 emission reduction, blast furnace slag (BFS) and fly ash (FA) are used more widely to reduce the cement consumption in the field of building materials.Therefore, this study will investigate the combined deterioration between carbonation and frost damage, and ASR and frost damage of concrete containing BFS and FA, the effect on the combined deterioration would be also made clear.1. For Non-AE BFS concrete, carbonation can reduce the frost resistance of OPC concrete and BFS concrete with a low replacement ratio but can improve the frost resistance of BFS concrete with a high replacement ratio. For AE BFS concrete, the frost and scaling resistance of all concrete is kept at a high level. The additive of BFS can reduce the frost resistance of Non-AE concrete subjected to carbonation, and has no effect on frost resistance of AE concrete.2. For FA concrete, carbonation has little effect on the frost resistance of concrete. Besides, the frost and scaling resistance are far more reliant on the changes in pore structure than they are on the water absorption. Due to additive of FA, the frost and scaling resistance of AE concrete subjected to carbonation is kept at a high level; while, for Non-AE concrete subjected to carbonation, the frost and scaling resistance tends to decrease.3. for OPC concrete, expansion due to ASR could be restrained when subjected to freeze-thaw, and frost resistance is reduced when subjected to ASR. For BFS and FA concrete, expansion due to ASR could be restrained regardless of being subjected to frost damage. The additive of BFS and FA can improve the frost resistance of concrete subjected to ASR. In real environment, AE concrete is used wildly for concrete construction. Therefore, in the study, it can be obtained that the use of BFS and FA donโt reduce of frost resistance of concrete subjected to salt damage and carbonation and increase the frost resistance of concrete subjected to ASR. Overall evaluation, the use of BFS and FA are beneficial to the safety of concrete.ๅฎค่ญๅทฅๆฅญๅคงๅญฆ (Muroran Institute of Technology)ๅๅฃซ๏ผๅทฅๅญฆ
ใณใณใฏใชใผใใฎๅๆๅๅฎณใฎ่จบๆญๅใณ้ฒๆญขๆ่กใซ้ขใใ็ ็ฉถ
Get PDFๅฏไธญใณใณใฏใชใผใๅทฅไบใงๆใ็ๆใในใใใจใจใใฆใๅๆๅๅฎณใฎ้ฒๆญขใจๅผทๅบฆๅข้ฒใฎ้
ใใซๅฏพใใๅฏพๅฟใๆใใใใใๅๆๅๅฎณใฏใใใฌใใทใฅๆใใ็กฌๅๅๆใซใใใฆใณใณใฏใชใผใไธญใฎๆฐดๅใๅ็ตใใใใจใซใใใๅผทๅบฆ็บ็พใฎๅๆปใชใฉใๅผใ่ตทใใ่ขซๅฎณใฎใใจใงใใใๆฅๆฌๅปบ็ฏๅญฆไผใฎๅฏไธญใณใณใฏใชใผใๆฝๅทฅๆ้ใปๅ่งฃ่ชฌใงใฏใๅๆๅๅฎณใซ่ใใๅง็ธฎๅผทๅบฆ5.0 MPaใ้ฉๅใช็ฉบๆฐ้ใชใฉใ่ฆๅฎใใใฆใใใใใใใๆฅๆฌๅๆจๅญฆไผใฏใณใณใฏใชใผใใฎๅๆๅๅฎณใ้ฒใใใใซใ15.0 MPaใฎๅง็ธฎๅผทๅบฆใๅฟ
่ฆใฎๅ ดๅใใใใๆฅๆฌๅปบ็ฏๅญฆไผใจๅๆจๅญฆไผใฏ่ฆๅฎใซใคใใฆใฎ็ธ้็นใๅญๅจใใ็พ่ฑกใซใใใ็พๅจใฎๅฏไธญๆ้ใซ้ขใใๅฝ้่ฆๆ ผใฎ็ตฑๅใ่กใใไธ็็็ฏๅฒๅ
ใซใใใๅฏไธญใณใณใฏใชใผใๆฝๅทฅ็พ็ถใ่ชฟๆปใใๅฟ
่ฆใใใใไธๆนใงใ็พๅ ดใงๆๅนใชๅๆๅๅฎณใฎ้ใปๅพฎ็ ดๅฃใฎ่จบๆญๆๆณใๆใพใใใฎใงใๆฐใใ่จบๆญๆๆณใ้็บใใใใจใๆฑใใใใใๆฌ็ ็ฉถใงใฏๆฐใใๅๆๅๅฎณใฎ้ฒๆญขๆๆณใ็ฎๆใใใใฎใใใไปฅไธใฎ่ๆฏใ่ธใพใใๅฏไธญใณใณใฏใชใผใใฎๅ่ณช็ขบไฟใฎใใใซใใณใณใฏใชใผใๅๆๅๅฎณใฎ่จบๆญใใใณ้ฒๆญขใฎๆ่กใฎ็ ็ฉถใ็ฎ็ใจใใใๅฝ้ๅฏไธญๆ้ใฎ่ชฟๆปใซใใใ่ซธๅฝใฎๅฏไธญใณใณใฏใชใผใๆฝๅทฅใฎ็พ็ถใๆๆกใงใใๅคง้จๅใฎๆฝๅทฅไบ้
ใฎๅ
ๅฎนใๅใใงใใใใใใฎไธญใงใฏๅๆๅๅฎณใซ่ใใๅผทๅบฆใฎ้ใใๆๅนใช่ขซๅฎณ่จบๆญใป้ฒๆญขๆๆณใฎไธ่ถณใฎๅ้ก็นใ็บ่ฆใใใใใใฎใใใใพใใๅๆๅๅฎณใซ่ใใๅผทๅบฆใฎ้ใใซใใใๅ็ต่่งฃ้ๅงๅๅง็ธฎๅผทๅบฆใใณใณใฏใชใผใใฎ่ๅๅฎณๆงใซๅใผใๅฝฑ้ฟใๆใใใซใใใใณใณใฏใชใผใใฎๅง็ธฎๅผทๅบฆใๅคงใใ็จใ่ๅๅฎณๆงใ่ฏใใชใใๆดใซใๅฝ้ๅฏๅทๅฐใฎๆฐ่ฑกๆกไปถใซใใใๅนด้ใฎๅ็ต่่งฃๅๆฐใงใใASTM็ธๅฝใตใคใฏใซๆฐใ็จใใๅๆๅๅฎณใซ่ใใๅผทๅบฆ5.0 MPaใ่ฉไพกใใใ5.0 MPaใฏไธ็็ใชๅ
ฑ้ใฎๅผทๅบฆใจใใฆๅๆๅๅฎณใ้ฒๆญขใใใใจใๅฎๅ
จใงใใใไธๆนใงใๅพฎ็ ดๅฃใฎ่ฒซๅ
ฅ่ฉฆ้จใฏๅๆๅๅฎณใ่จบๆญใงใใใใๆค่จใใใ้ใฎ่ฒซๅ
ฅ่ฉฆ้จใฏๅนๆใ่ฏใใชใใใ็ฉบๆฐๅงใใณ่ฒซๅ
ฅ่ฉฆ้จๆฉใฎๅ ดๅใงใฏ่ฒซๅ
ฅ้ใจ่ขซๅฎณๆทฑใใฎ้ขไฟใซใใใ่ขซๅฎณ็จๅบฆใฎๆจๅฎใใงใใใใณใณใฏใชใผใใฎๅ็ตๆ้่ชฟๆดๆ๏ผACF๏ผใ็จใใๅๆๅๅฎณ้ฒๆญขใฎๅนๆใๆค่จใใใACFๆใฎๆทปๅ ้ใฏ0๏ผ2๏ผ4๏ผ6kg /m3ใฎ4ๆฐดๆบใ่จญ็ฝฎใใใACFๆใฎๆทปๅ ้ใๅคใ็จใๅ็ตๆ้ใๆฉใใชใใไฝๆธฉใงใ้ก่ใชๅนๆใใใใๆทปๅ ้ใฎ2kg /m3ใฎๅ ดๅใงใฏใๅๆๅๅฎณใๅใใ็ถๆณใฏ0kg /m3ใฎๅ ดๅใจๅใใๆทปๅ ้ใ4๏ผ6kg /m3ใฎๅ ดๅใงใฏใๅๆๆ้ฝกใซๅ็ตใๅใใใณใณใฏใชใผใใๅๆๅๅฎณใๅใใชใใๅง็ธฎๅผทๅบฆใฏๅ็ตใชใใฎใณใณใฏใชใผใใจๅ็ญใซใชใใACFๆๆทปๅ ้ใฎ4๏ผ6kg /m3ใๅๆๅๅฎณใฎ้ฒๆญขๆๆณใจใใฆๆๆกใใใThe most critical things in cold weather concreting are preventing early age frost damage and guaranteeing a normal strength development. Early age frost damage is a serious problem for concrete structures in cold regions, which is caused by freezing and cyclic freeze-thaw cycles during the initial hardening stage. The objective of this study was to (1) grasp the present situation of cold weather concreting in various countries and summarize the content from various guidelines by investigating Guides to Cold Weather Concreting of various countries, (2) propose effective diagnosis methods for early age frost damage, (3) investigate the effect of compressive strength development at early ages on frost resistance of concrete and (4) propose a prevention method of early age frost damage by using additive for setting time adjustment.Based on the literature review of Guides to Cold Weather Concreting of various countries, it is known that most of the regulations are relatively similar. However, the minimum required compressive strength is the main difference in various countries. Meanwhile, technological development is needed to improve the diagnosis and prevention of early age frost damage.The nail and pneumatic penetration test machine methods are discussed to develop accurate diagnostic methods for detecting the depth of early age frost damage. The penetration test by pneumatic penetration test machine effectively diagnoses the depth of early age frost damage in 7 days. It can roughly detect the damage depth with a micro-destructive degree.To investigate the effect of compressive strength development at early ages on the frost resistance of concrete, laboratory and outdoor exposure tests were conducted. Air-entrained concrete with a compressive strength of 5.0 MPa can withstand several freeze-thaw cycles and effectively prevent early age frost damage. Concrete that has finished its final setting can effectively resist early age frost damage in Air-entrained and Non-air-entrained conditions. To develop an effective prevention method for early age frost damage using additive for setting time adjustment, setting time test and compressive strength test are performed. Adding 4 and 6 kg/m3 of ACF additive effectively prevents early age frost damage, which can apply for cold weather concreting due to the outstanding prevention effectiveness of early age frost damage.ๅฎค่ญๅทฅๆฅญๅคงๅญฆ (Muroran Institute of Technology)ๅๅฃซ๏ผๅทฅๅญฆ
้ฃ็ถๅผทใญใใใฒใใฟๅ ๅทฅๆณใซใใ็ต็นๅถๅพกใซ้ขใใ็ ็ฉถ
Get PDF1. ็ท่จใ้ๅฑๆๆใฎ็นๆงๆนๅใฎๆนๆณใจใใฆๅผทใฒใใฟ(SPD)ๅ ๅทฅใๆใใใใใSPDๅ ๅทฅใฏใๅทจๅคงใชๅกๆงๅคๅฝขใซใใฃใฆๅค้ใฎใฒใใฟใไปไธใใๆนๆณใงใๆงใ
ใชๆนๆณใ่ๆกใใใฆใใใๅ้ๅใ่คๅๅใจ็ตใฟๅใใใฆใใใชใ็นๆงๅไธใๆๅพ
ใงใใใ้ฃ็ถๅผทใญใใใฒใใฟๅ ๅทฅๆณ(RMA-CREOๅฆ็)1, 2)ใฏใ้ทๅฐบใชไธธๆฃๆใซๅฏพใๅไธใใค้ฃ็ถ็ใซSPDๅ ๅทฅใๅฏ่ฝใงใใใๆฌ็ ็ฉถใงใฏใRMA-CREOๅฆ็ใๅกๆงๅ ๅทฅๆงใฎไฝใHCP้ๅฑใงใใ็ดใใฟใณใใชใใณใซFCCๆๅบๅผทๅๅๅ้ใงใใCu-Cr-Zr็ณปๅ้ใธ้ฉ็จใใๆๆ็นๆงใธไธใใๅฝฑ้ฟใ่ชฟๆปใใใใพใ็ต็นๅญฆ็่ชฟๆปใใใ็ตๆถ็ต็นใฎๅฝขๆๆฉๆงใๅพฎ็ดฐ็ต็นใฎๅๆๆ็นๆงใซๅฏพใใไฝ็จๆฉๅบใฎ่งฃๆใ็ฎๆใใใ2. ็ดใใฟใณใฎๅกๆงๅคๅฝข่ฝใซๅใผใRMA-CREOๅฆ็ใฎๅฝฑ้ฟใHCP้ๅฑใงใใใใฟใณๅ้ใใใฐใใทใฆใ ๅ้ใฏ้ซๆฏๅผทๅบฆใๆใใฆใใใใจใใใๆง้ ๆๆใซๅบใๅฉ็จใใใฆใใใไธๆนใงHCPๆง้ ็ฑๆฅใฎๅกๆงๅคๅฝขๆงใฎไฝใใ่ชฒ้กใจใชใฃใฆใใใใใฐใใทใฆใ ๅ้ใธRMA-CREOๅฆ็ใ้ฉ็จใใใใจใงใๅกๆงๅคๅฝข่ฝใฎๅไธใๅ ฑๅใใใฆใใ3)ใใใใงใใฐใใทใฆใ ๅๆงใซHCPๆง้ ใๆใใๅผทๅบฆ้ขใงๅชใใ็ดใใฟใณใธRMA-CREOๅฆ็ใ้ฉ็จใใๅกๆงๅคๅฝข่ฝใซไธใใๅฝฑ้ฟใ่ชฟๆปใใใ็ฑ้้้ ่ฉฆ้จใใใRMA-CREOๅฆ็ใ่กใฃใ่ฉฆๆใฎๆๅคงๅคๅฝขๆตๆใไฝไธใใใ็ตๆถๆนไฝ่งฃๆใ็จใใ็ตๆถ็ต็น่ชฟๆปใใใ่ฉฆๆๅคๅจ้จใซRMA-CREOๅฆ็ใซใใฃใฆ็ฒๅคง็ตๆถ็ฒใๅใๅฒใใใใซๅพฎ็ดฐใช็ตๆถ็ฒใๅๅธใใใใคใขใผใใซ็ต็นใๅฝขๆใใใฆใใใใจใๆใใใจใชใฃใใใใฎใใคใขใผใใซ็ต็นใซใใ็ฒๅคง็ฒใฎๅ ๅทฅ็กฌๅๆๅถใใๅพฎ็ดฐ็ฒใฎ็ฒ็ใในใใๅคๅฝขๆตๆๆธๅฐใซๅฏไธใใฆใใใใจใ็คบๅใใใใ3. Cu-Cr-Zr็ณปๅ้ใฎๆๅน็นๆงใซไธใใRMA-CREOๅฆ็ใฎๅฝฑ้ฟใ้ซๅผทๅบฆใ้ซๅฐ้ปๆงใๆใใๆๅบๅผทๅๅๅ้ใงใใCu-Cr-Zr็ณปๅ้ใซRMA-CREOๅฆ็ใ้ฉ็จใใๆๅน็นๆงใซไธใใๅฝฑ้ฟใ่ชฟๆปใใใๅๅ
ฅๆใซๅฏพใRMA-CREOๅฆ็ๅพใ623 Kใฎๆๅนๅฆ็ใ่กใใใจใงใๅคงๆฐ็ใ็จใๆบถไฝๅๅฆ็ใๆฝใใๆฏ่ผ่ฉฆๆใจๅ็ญใฎๆๅคงใใใซใผใน็กฌใ122 HVใ็ถญๆใใชใใใๆๅนๆ้ใฏๅๆธใใๅฐ้ป็ใฎๅไธใ็ขบ่ชใใใใ็ตๆถ็ต็น่ชฟๆปใฎ็ตๆใRMA-CREOๅฆ็ใซใใๅค้ใฎๆ ผๅญใฒใใฟใฎๅฐๅ
ฅใ็ขบ่ชใใใใๆ ผๅญใฒใใฟใๆๅบ็ฉใฎๅชๅ
็ใชๆ ธ็ๆใตใคใใจใชใใใจใงใๆๅนๆ้ใฎ็ญ็ธฎใซๅฏไธใใใจ่ใใใ4. ็ทๆฌใRMA-CREOๅฆ็ใๅกๆงๅ ๅทฅๆงใฎไฝใHCP้ๅฑใงใใ็ดใใฟใณใใชใใณใซFCCๆๅบๅผทๅๅๅ้ใงใใCu-Cr-Zr็ณปๅ้ใธ้ฉ็จใใๆๆ็นๆงใธไธใใๅฝฑ้ฟใ่ชฟๆปใใใใใปRMA-CREOๅฆ็ใ้ฉ็จใใ็ดใใฟใณใ็ฑ้้้ ่ฉฆ้จใซไพใใ็ตๆใๅคๅฝขๆตๆใๆธๅฐใใๅกๆงๅคๅฝข่ฝใฎๆนๅใ็ขบ่ชใใใใใใปRMA-CREOๅฆ็ใ้ฉ็จใใCu-Cr-Zr็ณปๅ้ใฏใๆบถไฝๅๅฆ็ใๆฝใใใๆฏ่ผ่ฉฆๆใจๅ็ญใฎๆๅคงใใใซใผใน็กฌใ122 HVใ็ถญๆใใชใใใๅฐ้ป็ใๅไธใๆๅนๆ้ใๅๆธใใใๅ่ๆ็ฎ1) ไธญๆๅ
ๆญ, ๅ ็ฐๅๆฒป, ไธญๅฃ้ๅฝฆ, ้ๅญ่ณขๆฒป, ๆ น็ณๆตฉๅธ: ็น่จฑๅ
ฌๅ ฑ4777775ๅท, (2004).2) K. Nakamura, K. Neishi, K. Kaneko, M. Nakagaki, Z. Horita: Material Transactions, 45 (2004) 3338-3342.3) ไธญๆๅ
ๆญ, ้ดๆจ่ฃ, ๅๆ่ก, 25 (2010), 91-92.1. IntroductionSevere plastic deformation (SPD) processing apply a large amount of distortion through huge plastic deformation for improving the metal material properties. RMA-CREO processing 1, 2) enables uniform and continuous SPD processing for long round bars. In this study, RMA-CREO processing was applied to commercially purity titanium, which is HCP metal with low plastic workability, and Cu-Cr-Zr alloy, which is FCC precipitation-strengthened alloy, and its effect on their characteristics was investigated. In addition, from the microstructure investigation, we aimed to clear the formation mechanism of the micro structure and the effect of the micro structure on each material property.2. The effect of RMA-CREO processing on plastic deformability of pure titaniumDilute titanium alloys and magnesium alloys, which are HCP metals, are widely used as structural materials because of their high specific strength. On the other hand, the low plastic deformability derived from the HCP structure has shown. Application of RMA-CREO processing to magnesium alloys has been reported to improve the plastic deformability3). Therefore, RMA-CREO processing was applied to pure titanium, which has an HCP structure such the same as and has higher strength than magnesium alloy, and the effect on plastic deformability was investigated.The maximum deformation stress of RMA-CREO processed specimens decreased for the hot forging test. From the microstructure investigation using the crystal orientation analysis, it was clarified that the RMA-CREO processing formed a bimodal structure in which fine grains were distributed so as to surround the coarse grains at the edge of the specimen. It was suggested that this bimodal structure contributes to the suppression of work hardening of coarse grains and grain boundary sliding of fine grains to reduce deformation stress.3. The effect of RMA-CREO processing on aging property of Cu-Cr-Zr alloyRMA-CREO processing was applied to Cu-Cr-Zr alloys, which are precipitation-strengthened alloys with high strength and high electrical conductivity, and the effects on aging properties were investigated. RMA-CREO processed specimen aged at 623 K reduced the aging time to peak Vickers hardness by half while maintaining the maximum hardness of 122 HV which is equivalent to the comparative solution treated specimen. Furthermore, an improvement in electrical conductivity was confirmed. As a result of the microstructure investigation, it was confirmed that a large amount of distortion was introduced by the RMA-CREO processing. It was thought that the distortion serves as preferential nucleation sites for precipitates, which contributes to the shortening of the aging time to peak hardness.1) K. Nakamura et al.: Published unexamined patent application No. 4777775, (2004).2) K. Nakamura et al.: Materials Transactions, 45 (2004) 3338-3342.3) K. Nakamura et al.: Die and Mould Technology, 25 (2010), 91-92.ๅฎค่ญๅทฅๆฅญๅคงๅญฆ (Muroran Institute of Technology)ๅๅฃซ๏ผๅทฅๅญฆ
่ฟ่ท้ข้ณๅ ดใซใใใ็ฉไฝใฎ่ทณ่บ็พ่ฑกใจๆตไฝใฎๅดๅบ็พ่ฑกใซ้ขใใ็ ็ฉถ
Get PDF็พๅจใ่ถ
้ณๆณขใ็จใใๆงใ
ใช็พ่ฑกใ็จใใฆ็ฉไฝใฎๆตฎๆใไฝ็ฝฎๅถๅพกใๅฎ็พใใใฆใใใ่ฟ่ท้ขๅ ด้ณๆณขๆตฎๆใฏๆฟ็ถ็ฉไฝใๆฏๅ้ขใใ้ณ้ฟๆพๅฐๅใๅใๆฐ็พยตm็จๅบฆใๆตฎๆใไฟๆๅใซใใฃใฆๆฏๅ้ขไธใไฟๆใใ็พ่ฑกใงใใใใใฎไฟๆๅใ็จใใใใจใซใใฃใฆใๆฟ็ถ็ฉไฝใฎ้ๆฅ่งฆ2ๆฌกๅ
ในใใใใณใฐๆฌ้ใๅฎ็พใใใฆใใใใใใใๆฏๅ้ขไธใซ็ชชใฟใๆใใฆใใ้ๅนณ้ขใงใใๅ ดๅใฏๆฏๅน
ใๅขๅ ใใใใใจใงๆฟ็ถ็ฉไฝใ้ๅนณ้ขใฎๆฏๅ้ขใใ่ทณ่บใใใใจใ็ขบ่ชใใใใใพใใๅนณ้ขใฎๆฏๅ้ขไธใซ่ฒซ้็ฉดใๆใใ็ฉไฝใ่ฒซ้็ฉดใๆฏๅ้ขใซ้ใชใใใใซ้
็ฝฎใใใจ็ฉดใใ็ฉบๆฐใๅดๅบใใใใจใ็ขบ่ชใใใใใใฎใใใชๆฏๅ้ขไธใใใฎ่ทณ่บ็พ่ฑกใใใณ็ฉดใใใฎๆตไฝๅดๅบ็พ่ฑกใฏใใใพใงๅ ฑๅใใใฆใใใใ่ฉณ็ดฐใชๆค่จใซใใ่ถ
้ณๆณขใฎๆฐใใชๅ้ใ้ๆใใใใใจใๆๅพ
ใงใใใใใใซใใใใใฎ็พ่ฑกใๅฉ็จใใใใจใงๆฐใใ่ถ
้ณๆณขใใใคในใฎ้็บใซๅฟ็จใงใใใจ่ใใใใใไปฅไธใฎ็็ฑใใๆฌ็ ็ฉถใงใฏๅฎ้จใจ่งฃๆใใ่ทณ่บ็พ่ฑกใใใณๆตไฝๅดๅบ็พ่ฑกใซใคใใฆ่ฉณ็ดฐใซๆค่จใใๆใใใซใใใใพใใใใฎ็พ่ฑกใๅฉ็จใใๅฟ็จๆนๆณใๆๆกใใใ่ทณ่บ็พ่ฑกใฏๆฏๅ้ขใใใฎ่ท้ขใซๅฏพใใ้ณ้ฟๆพๅฐๅใฎๆฅตๅฐๅคใๆตฎๆ็ฉไฝ้้ใไธๅใใใจใง็บ็ใใใใจใๆใใใซใใใใพใใๆฏๅ้ขไธใฎไธญๅฟใใใใใไฝ็ฝฎใซๆบใ่จญใใใใจใซใใฃใฆๆฟ็ถ็ฉไฝใฎ้ๆฅ่งฆๅ่ปขๅไฝใๅฎ็พใงใใใใใฎ้ๆฅ่งฆๅ่ปขๅไฝใจ่ฟ่ท้ขๅ ด้ณๆณขๆตฎๆใๅฉ็จใใ้ๆฅ่งฆในใใใใณใฐๆฌ้ใ็ตใฟๅใใใใใจใซใใฃใฆใๆฟ็ถ็ฉไฝใฎ้ๆฅ่งฆใฎๆฌ้ใจๅ่ปขๅไฝๅฏ่ฝใซใชใใใจใๆๅพ
ใงใใใๆฏๅ้ข่ฟๅใซ้
็ฝฎใใใ็ฉดใๆใค็ฉไฝใฎๆตไฝๅดๅบ็พ่ฑกใซใใๆต้ๅๅธใฏPIV่จๆธฌใซใใ่จๆธฌใใใใPIV่จๆธฌ็ตๆใใๆฏๅ้ขใจ็ฉดไปใ็ฉไฝ้ใซใฏ็ฉบๆฐใๆตๅ
ฅใใใ็ฉดใใใฎๅดๅบๆตใฏ็ฉด่ฟๅใฎ็ฉบๆฐใๅธๅผใใ็ฉด่ปธไธใซๆๅบใใ็พ่ฑกใงใใใใจใๆใใใจใชใฃใใใใใใฃใฆใ็ฉดใใใฎๅดๅบๆตใฏๆตๅ
ฅ้จใจๆตๅบ้จใ่ฟใใชใใใ็ฉดใซๅฏพๅใใไฝ็ฝฎใซๅ้ข็จใฎ็ฉดใ่จญใใใใจใซใใฃใฆๆตๅ
ฅ้จใจๆตๅบ้จใๅ้ขใใใใจใใงใใใใพใใๅนณ้ขไธใซ็ฉดไปใใฎๅ็ญใ้
็ฝฎใใไธๅดใใๆฏๅ้ขใ่ฟใฅใใใจ็ฉดไปใๅ็ญใๆตฎๆใใใใใซๆตฎๆๅ็ญใซใฏ10mNใฎไฟๆๅใไฝ็จใใใ10mNใฎไฟๆๅใฏ่ฟ่ท้ขๅ ด้ณๆณขๆตฎๆใซใใใไฟๆๅใใใ็ด10ๅๅคงใใไฟๆๅใจใชใใใใฎๆตฎๆๆนๆณใ็จใใ็ก้ๅ็ฉบ้ใซใใใๆฐใใๆตฎๆไฟๆใธใฎๅฟ็จๆนๆณใๆๆกใใใCurrently, the levitation and position control of an object has been developed by some ultrasonic phenomena. A planar object is levitated several hundred ยตm from a vibrating surface by near-field acoustic levitation (NFAL) phenomenon. The object was held by the holding force above the vibrating surface. This holding force was applied to the non-contact stepping transportation. However, when the vibrating surface has a recess, the planar object above the surface is jumped from the surface. In addition, the jet generated from the hole when the object has a through hole. These phenomena have not been reported before. A detailed examination of these phenomena was expected to extend new ultrasonic fields. Novel ultrasonic devices will be able to be applied by these phenomena. Therefore, this thesis described these phenomena to clear and suggestions about ultrasonic devices using these phenomena.The jumping phenomenon of the levitated object happened when the minimum force of the acoustic radiation force was larger than the objectโs weight. The flip motion was realized by the asymmetric vibrating surface by a groove of a deviation position from a vibrating surface center. This thesis suggested combining non-contact stepping transportation by NFAL and flip motion.The jet phenomenon by an object with a small hole near the vibrating surface was measured by particle image velocimetry (PIV). The air did not flow in the air gap between the vibrating surface and the small hole of the object. The air around the small hole was absorbed, and then it was emitted from the hole. The inflow part and the outflow part of the jet were generated near each. The jet flow was separated by the separation hole at the opposite small hole. In addition, a cylinder with a small hole is levitated above the vibrating surface. The holding force acted on the levitated cylinder. The holding force reached 10mN. This force value is more than about 10 times larger than the holding force by NFAL. This levitation method was suggested to apply in zero gravity space in this thesis.ๅฎค่ญๅทฅๆฅญๅคงๅญฆ (Muroran Institute of Technology)ๅๅฃซ๏ผๅทฅๅญฆ
ใขใถใคใฏๅNRDๅฐๆณข่ทฏใใใคในใฎๆ้ฉ่จญ่จ
Get PDF่ฟๅนดใฎ้ไฟกใทในใใ ใฎๅคงๅฎน้ๅใซไผดใใใใชๆณขใใใณใใฉใใซใๆณขๅธฏๅใฎไฝฟ็จใ็ฉๆฅต็ใซๆค่จใใใฆใใใ้ๆพๅฐๆง่ช้ปไฝๅฐๆณข่ทฏ(NRDใฌใคใ)ใฏใ้ๆพๅฐๆงใซใใไฝๆๅคฑใชใใๅคใใฎๆณจ็ฎใ้ใใฆใใใใใใพใงๆๆกใใใฆใใNRDใฌใคใใใใคในใฏใๅบๆฌ็ใชๆง้ ใซใใใใฎใไธปใงใใใใใใซใNRDใฌใคใใฏใใฎๆง้ ใใ3ๆฌกๅ
่งฃๆๆๆณใใใฐใใฐไฝฟ็จใใๅธ่ฒฉใฎใฝใใใฆใงใขใงใฏ่จ็ฎใณในใใ้ซใใชใใใใฎ่ซๆใงใฏใใขใถใคใฏๅฝข็ถใ็จใใNRDใฌใคใใฎๆ้ฉ่จญ่จใซใคใใฆใใใคใใฎๆ้ฉ่จญ่จใขใใญใผใใๆๆกใใใ่จ็ฎใณในใใๅๆธใใใใใซใๅน็ใฎ้ซใใทใใฅใฌใผใทใงใณๆๆณใ้็บใใใใใฏใใใซใ็ดๆฅไบๅคๆข็ดขๆณ(DBS)ใ้็บใใใ่จญ่จๅน็ใๅไธใใใใใใๆฐๅคใทใใฅใฌใผใทใงใณๆๆณใจใใฆ็ฌ่ชใซ้็บใใ2ๆฌกๅ
ใใซใใฏใใซๆ้่ฆ็ด ๆณ(2D-FVFEM)ใๆก็จใใฆใใใๆ็จๆงใ็คบใใใใซใNRDๅธ่ฒฉใฎไบคๅทฎๅฐๆณข่ทฏใจ90ยฐๆฒใๅฐๆณข่ทฏใฎ่จญ่จใ่กใใใใใใ99%ใ่ถ
ใใ้ซใไผ้ๅน็ใๅพใใใใๆฌกใซใใใคใใชใใผในใฎ้บไผ็ใขใซใดใชใบใ ใๅทฎๅ้ฒๅใขใซใดใชใบใ ใใใผใขใใผใตใผใใขใซใดใชใบใ ใ่ใขใซใดใชใบใ ใ็ฒๅญ็พคๆ้ฉๅใขใซใดใชใบใ ใๆๆกใใใๆ็จๆงใ็คบใใใใซใไบคๅทฎๅฐๆณข่ทฏใTๅๅฒๅฐๆณข่ทฏใๆฒใๅฐๆณข่ทฏใใใใณๅจๆณขๆฐๅ้ข็ด ๅญใฎ่จญ่จใ่กใฃใใใใใใใฎ้้็ใฏใไบคๅทฎๅฐๆณข่ทฏใ99.9%ใTๅๅฒๅฐๆณข่ทฏใ49.9%:49.9%ใๆฒใๅฐๆณข่ทฏใงใฏ96.4 %ใๅจๆณขๆฐๅ้ข็ด ๅญใงใฏ59 GHzใง96.4 %ใ61 GHzใง98.5 %ใๅพใใใฆใใใใๆฌกใซใใใใพใงใซ้็บใใ2D-FVFEMใใ้็ธๅๆงๆๆใๅซใใ NRDใฌใคใใใใคในใฎ่จญ่จใซ้ฉๅฟใงใใใใใซๆกๅผตใใใตใผใญใฅใฌใผใฟใจใขใคใฝใฌใผใฟใฎ่จญ่จใใใใใจใซใใๅฆฅๅฝๆงใ็ขบ่ชใใใๆๆใฎ็นๆงใ้ๆใใใใใซใใใผใขใใผใตใผใใจๅทฎๅ้ฒๅๆณใ้ฉ็จใใๅไธๅจๆณขๆฐใงใฎๅไฝใจๅบๅธฏๅๅใๅฎ็พใใใใๆฌกใซใNRDใฌใคใใใใคในใฎ่งฃๆใฎใใใฎๅณๅฏใช2ๆฌกๅ
ใใซใใฏใใซๆ้ๅทฎๅๆ้้ ๅๆณ(2DFDTD)ใๆๆกใใใๅธๅๅข็ๆกไปถใจใใฆใ็ณใฟ่พผใฟๅฎๅ
จๆดๅๅฑค(CPML)ใ็จใใใใใใซใLSM01ใจLSE01ใฎๅใขใผใใฎ้้็ใๆจๅฎใใใใใซๅณๅฏใชๅฎๅผๅใ็ขบ็ซใใใNRDใฌใคใไบคๅทฎๅฐๆณข่ทฏใTๅๅฒๅฐๆณข่ทฏใฎ่งฃๆใ้ใใฆใใฎๆๆณใฎๆๅนๆงใ็คบใใใใใฎ็ ็ฉถใงใฏใใใใคใใฎๆ้ฉ่จญ่จใขใใญใผใใจใทใใฅใฌใผใทใงใณๆๆณใ้็บใใฆใใใ็ง้ใๆๆกใใ่จญ่จใขใใญใผใใฏใ่ค้ใชใใใคในๆง้ ใจๆฉ่ฝใๅใใๅคใใฎNRDใฌใคใใใใคในใฎ่จญ่จใซใ้ฉ็จใงใใใ่จญ่จใใใใใใคในใฏๅฐๅใง้ซๆง่ฝใชใใชๆณขๅ่ทฏใๅฎ็พใใใใใซๅๅใช่ฝๅใจๅฏ่ฝๆงใๆใฃใฆใใใThe use of millimeter- and terahertz-wave bands are being actively explored to increase communication system capacity and meet modern communication requirements. In recent years, non-radiative dielectric (NRD) waveguide device has received a lot of attention due to low loss nature. Several NRD guide components have been reported so far without employing any optimization approaches. On the other hands, those devices are simulated numerically using 3D simulation methods and commercially available softwares result in high computational time and simulation resources required. In this thesis, we propose several optimal design approaches based on mosaic optimization concept for the design of NRD guide. In order to reduce the computational cost, we also developed highly efficient simulation methods.First, we develop direct binary search (DBS) algorithm. In order to improve design efficiency, we employ the originally developed two-dimensional full vectorial finite element method (2D-FVFEM) as a numerical simulation method. To show the usefulness, NRD crossing and 900-bend waveguide are considered and high transmission efficiency greater than 99% is achieved at operating frequency 60 GHz. Then, we propose binary representation-based genetic algorithm, differential evolution algorithm, harmony search algorithm, firefly algorithm, and particle swarm optimization. To show the usefulness, four NRD circuit components are designed which include low crosstalk waveguide crossing, T-branch power splitter, bending waveguide, and frequency demultiplexer. The proposed optimal devices achieve high transmission efficiencies greater than 99.9%, 49.9%:49.9%, 99.9% at 60 GHz and 96.4%, 98.5% at 59 GHz and 61 GHz. In addition, the same NRD guide components except frequency demultiplexer are also designed at wideband operation and achieve broad bandwidth around 5 GHz, 4 GHz, and 3 GHz.We extend our previously developed 2D-FV-FEM to be applicable for design of non-reciprocal NRD guide devices. The accuracy is confirmed by designing NRD circulator and isolator. To achieve the desired properties, harmony search and differential evolution algorithm are employed for single frequency and broadband operation respectively.We propose rigorous two-dimensional full-vectorial finite difference time domain method for the analysis of NRD guide devices. Convolutional perfectly matched layer (CPML) is employed as an absorbing boundary condition. Furthermore, we have established a rigorous formulation for estimating the modal power of each LSM01 and LSE01 mode. We confirmed the validity of the proposed method through the analysis of NRD crossing and T-branch guide devices. Excellent accuracy is achieved by the cross comparison of 2D-FV-FDTD results with 2D-FV-FEM.In this research work, we develop several optimal design approaches and simulation methods. Our proposed design approaches are applicable to design a lot of NRD guide devices with complex device structures and functionalities as well. The designed devices have enough ability and potential to integrate in a circuit for the realization of complex, compact and high-performance millimeter- wave circuit.ๅฎค่ญๅทฅๆฅญๅคงๅญฆ (Muroran Institute of Technology)ๅๅฃซ๏ผๅทฅๅญฆ
ๅ่ชฟใใใณ็นฐ่ฟใ่ผ่ทใๅใใ่ฃๅผทๆตๅๅๅฆ็ๅใฎๅๅญฆ็ๆๅใซ้ขใใๅฎ้จ็็ ็ฉถ
Get PDFๆฌ็ ็ฉถใงใฏใ98ใฑใผในใฎๅงๅฏ้ๆๆฐดๅ่ชฟใป็นฐ่ฟใไธ่ปธ่ฉฆ้จ็ตๆใซๅบใฅใใฆใๅ่ชฟใใใณ็นฐ่ฟใ่ผ่ทใซใใๆตๅๅๅฆ็ๅใใใณ่ฃๅผทใใใๆตๅๅๅฆ็ๅ๏ผLSS๏ผใฎๅๅญฆๆๅใซใคใใฆ่ญฐ่ซใใใฆใใใๅ่ชฟ่ผ่ท่ฉฆ้จใงใฏใLSSใฎๅผทๅบฆใปๅคๅฝข็นๆงใซๅใผใๆณฅๆฐดๅฏๅบฆใ้ค็ๆฅๆฐใฎๅฝฑ้ฟใๆค่จใใใจใจใใซใ็ถฟ็ถใซ็ฒ็ ใใๆฐ่็ดใ0, 10 kg/m3ใงๆททๅใใๅฎคๅ
ใใใณๅไฝ็ฝฎ้ค็ใฎ็น็ถญๆๆททๅๆตๅๅๅฆ็ๅใๆฏ่ผใปๆค่จใใใใ่ฉฆ้จ็ตๆใซๅบใฅใใฆใLSSใฎๅผทๅบฆ็นๆงใซๅใผใๆณฅๆฐดๅฏๅบฆใฎๅฝฑ้ฟใฏใ้ค็ๆฅๆฐใฎๅฝฑ้ฟใใใๅคงใใใใจใๆใใใซใใใใใพใใใใผใฏๅใฎq๏ฝa้ขไฟใฎๆๅใฏใ้ค็ๆฅๆฐใฎๅฝฑ้ฟใจใฏๅฏพ็
ง็ใซๆณฅๆฐดๅฏๅบฆใฎๅฝฑ้ฟใงใใ้็ทๅฝข็ใซใชใใใจใLSSใฎใใๆญใซใใๆๅท็จๅบฆใฏใ้ค็ๆฅๆฐใฎๅขๅคงใจใจใใซๅฐใใใชใใใๆณฅๆฐดๅฏๅบฆใซใฏใใพใไพๅญใใชใใใจใๆใใใจใชใฃใใ็นฐ่ฟใ่ผ่ท่ฉฆ้จใงใฏใๅคๅฝข็นๆงใซๅใผใ็นฐ่ฟใ่ผ่ทใฎๅฝฑ้ฟใๆค่จใใ็ฎ็ใงใๅฎคๅ
ใง28ๆฅ้้ค็ใใๆตๅๅๅฆ็ๅใซๅฏพใใฆใ่ปธๅทฎๅฟๅๆฏๅน
ใๅๆๅฟๅใๅงๅฏๅงๅใใฒใใฟ้ๅบฆใๅถๅพกๆนๆณ๏ผๅฟๅ-ใฒใใฟใตใคใฏใซ๏ผใชใฉใๅคๅใใใใจใจใใซใๆณฅๆฐดๅฏๅบฆใ็น็ถญๆๆททๅ้ใใปใกใณใๆทปๅ ้ใชใฉใฎๆตๅๅๅฆ็ๅๆๆใๅคๅใใใ๏ผใใฎ็ตๆใๆตๅๅๅฆ็ๅใใใณ็น็ถญๆใง่ฃๅผทใใใๆตๅๅๅฆ็ๅใฏๆถฒ็ถๅใ็ใใชใใใจใๆใใใจใชใฃใใใพใใ็ ดๅฃใขใผใใฏใ็นฐ่ฟใ่ปธๅทฎๅฟๅๆฏๅน
ใจๅๆ่ปธๅทฎๅฟๅใซไพๅญใใใใจใ็ญๆนๅฟๅ็ถๆ
ใใไธๅฎใฎ่ปธๅทฎๅฟๅๆฏๅน
ใง่ผ่ทใใๅ ดๅใ้้ๆฐดๅงใจไธกๆฏๅน
่ปธใฒใใฟใฏ็นฐ่ฟใ่ผ่ทๅๆฐใฎๅขๅ ใจใจใใซๅขๅ ใใใใจใ็น็ถญๆๆททๅๆตๅๅๅฆ็ๅใฏใใใชใๅคงใใชใฒใใฟๆฏๅน
ใซใใใๆ็ต็ใซ็ ดๅฃใซ่ณใใใจใๆ็ตๆฎต้ใซใใใๆๅนๅฟๅๅฑฅๆญดใซใผใใฏใใใฟใใฉใคๅฝข็ถใฎๅฟๅ็ต่ทฏใจใชใใใจใชใฉใๆใใใซใใใใใพใใ่ผ่ทไธญ็ซ่ปธใฎ่ปธๅทฎๅฟๅใๆญฃใฎๅคใซใใ็นฐ่ฟใ่ผ่ทใงใฏใใใใใใฎ็นฐ่ฟใ่ผ่ทใซไผดใฃใฆ่ปธใฒใใฟใฎ่็ฉใ็ใใๅๅกใใใไธกๆฏๅน
่ปธใฒใใฟใฏใปใจใใฉไธๅฎใซไฟใใใใใใใใฃใฆใๆฐธไน
ใฒใใฟใฎ้ๅคงใช่็ฉใซใใ็ ดๅฃ่ฆๆบใฏๆบใใใใใใจใซใชใใๆ็ตๆฎต้ใฎๅฟๅใซใผใใฎๅฝข็ถใฏใใใฟใใฉใคๅใใฌใณใบๅใซใฏใชใใใ้็็ถๆ
็ท(CSL)ใ่ถใใๅพใๅใณๆปใฃใฆใใ็ต่ทฏใจใชใฃใใใใใฏใ็น็ถญๆๆททๅๆตๅๅๅฆ็ๅใฏ็ ดๅฃ่ฆๆบ็ทใซๅฐ้ใใๅใซ่จๅผตๅพๅใซใชใใใจใๆๅณใใใๅฟๅใฌใใซใ็คบใ็นฐ่ฟใๅฟๅๆฏ๏ผCSR๏ผใฎ็ฏๅฒใฏ0.275๏ฝ0.344ใงใใฃใใๅฟๅใฌใใซใใใฎ็ฏๅฒใใๅฐใใๅ ดๅใๆตๅๅๅฆ็ๅใฏ่็ฉใใใๆฐธไน
่ปธใฒใใฟใซใใ่จๅผตๅพๅใ็คบใ็ ดๅฃใซใฏ่ณใใชใใๆตๅๅๅฆ็ๅใฎ็นฐ่ฟใใใๆญๆตๆใฏใๅๆๅนณๅๆๅนๅฟๅใจๅบๅๆ้ใๆธๅฐใใใจๆธๅฐใใ็น็ถญๆๆททๅ้ใๆณฅๆฐดๅฏๅบฆใๅขๅ ใใใจๅขๅ ใใใใจใๆใใใซใชใฃใใๆ้่ฆ็ด ๆณใฏๅฐ้ๆฏๅ่งฃๆใซๅบใ็จใใใใฆใใใใใใฎ็ตๆใฏๆงๆๅผใจๆฐๅค่งฃๆใซ้ฉ็จใใใใขใใซใใฉใกใผใฟใซๅคงใใไพๅญใใใๆฌ็ ็ฉถใงใฏๆตๅๅๅฆ็ๅใฎๆๅใ่งฃๆใใใใใฎ็นๅฎใฎใขใใซใRamberg-OsgoodใขใใซใฎDelphiใณใผใใธใฎๅฎ่ฃ
ใ่กใใใใ่งฃๆๅคใจๅฎ้จๅคใฎๆฏ่ผใใใๆตๅๅๅฆ็ๅใฎ็นฐ่ฟใ่ผ่ทๆๅใฎ่ฉไพกใซRamberg-Osgoodใขใใซใ้ฉ็จๅฏ่ฝใงใใใๅ็ใใฉใกใผใฟใฏ้ฉๅใซๆ กๆญฃใใใๅฟ
่ฆใใใใใจใๆใใใจใชใฃใใไปฅไธใใใๅ่ชฟใใใณ็นฐ่ฟใ่ผ่ทใๅใใ่ฃๅผทใใใๆตๅๅๅฆ็ๅใฎๅๅญฆ็ๆๅใซ้ขใใฆใๅคใใฎๆฐใใช็ฅ่ฆใ็คบใใใใIn this study, the mechanical behavior of reinforced and unreinforced Liquefied Stabilized Soil (LSS) subjected to monotonic and cyclic loading is discussed based on a database with about Consolidated-Undrained monotonic and cyclic triaxial tests of 98 cases.In the monotonic tests, the influences of slurry density and curing time on the strength and deformation of LSS are investigated. Also, LSS mixed with the pulverized newspaper in the amount of 0 and 10 kg/m3 cured laboratory and in-situ are compared and investigated. Based on the test results, the effect of slurry density on the strength of LSS was found to be greater than the effect of curing time. The pre-peak behavior of the q~a curve became more non-linear under the effect of changing slurry density, in contrast to the effect of curing time. Moreover, the damage degree of LSS with shearing becomes small with curing time, while it seems to be rather independent of slurry density. With in-situ LSS, the influence of curing time on the initial Youngโs modulus, E0, is lower than the effect of slurry density.In the cyclic tests, in order to investigate the effect of cyclic load on the deformation property, the deviator stress amplitude, the initial stress, consolidation pressure, strain rate, and the control method (stress vs. strain cycles) were changed and LSS material which includes slurry density, fiber material, and cement base agent on LSS cured 28 days at the laboratory have been also varied. Based on the test results, it is found that the true liquefaction (q = p = 0) did not reach reinforced and unreinforced LSS. The failure mode is highly dependent on the cyclic deviator stress amplitude (ฯ_d) and initial deviator stress (ฯ_s). For symmetrical loading (ฯ_(s )= 0), the pore water pressure and double amplitude axial strain grew with an increasing number of cycles. LSS mixed with fiber material finally collapsed due to too large strain amplitudes. In the final stage, the loops of effective stress indicate a โButterflyโ stress path shape. For nonsymmetrical loading (ฯ_(s )> 0), an accumulation of compressional axial strain with each subsequent cycle occurred, while the mobilized double amplitude axial strain remained almost constant. Therefore, the failure criterion was fulfilled due to an excessive accumulation of permanent strains. The shape of the stress loop at the final stage did not pass the โbutterflyโ shape or lens shape to migrate to pass over the Critical State Line (CSL), then return to the touch again of the failure envelope. It means the LSS mixed fiber material tends to dilate before reaching the failure criterion. The range of critical cyclic stress ratio (CSR), which indicates the limitation of stress level, was between 0.275 to 0.344. If the stress level is lower than that value, the LSS sample is more dilative by accumulating permanent axial strain and does not reach failure. The cyclic shear resistance of LSS decreases when reducing the initial mean effective principal stress and cement content. In contrast, the cyclic shear resistance increases when adding fiber and increasing slurry density.The Finite Element Method (FEM) is used widely in the analysis of seismic vibration. However, the results depend critically on the constitutive models used and the model parameters adopted in the numerical analyses. The implementation of a specific model to analyze the behavior of LSS mixed fiber material under cyclic loading, the Ramberg-Osgood model, in the Delphi code is performed. Based on the result of the comparison of model simulations with experimental data, the overall is able to apply the Ramberg-Osgood model to evaluate the cyclic loading behavior of LSS, and dynamic parameters should be calibrated properly. In summary, a number of new findings were presented regarding the mechanical behavior of reinforced, liquefied stabilized soils subjected to monotonic and cyclic loading.ๅฎค่ญๅทฅๆฅญๅคงๅญฆ (Muroran Institute of Technology)ๅๅฃซ๏ผๅทฅๅญฆ