| JaLCDOI | 10.18926/fest/11421 |
|---|---|
| FullText URL | 012_001_006.pdf |
| Author | Watanabe, Masaji| Kawai, Fusako| |
| Abstract | A mathematical model for exogenous depolymerization with time dependent degradation rate is analyzed in order to study the biodegradation of polyethylene glycol. The weight distribution with respect to the molecular weight before and after cultivation of microorganisms were analyzed an inverse problem to determine the time dependent degradation rate. Numerical techniques to solve the inverse problem and to simulate the transition of the weight distribution are described. |
| Keywords | biodegradation polyethylene glycol mathematical model numerical simulation |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2007-03-15 |
| Volume | volume12 |
| Issue | issue1 |
| Start Page | 1 |
| End Page | 6 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313599 |
| JaLCDOI | 10.18926/fest/11422 |
|---|---|
| FullText URL | 011_001_007.pdf |
| Author | Fujita Kazutoshi| Tian Tian Chen| Nishina Tomohiko| Ishikawa, Hirofumi| |
| Abstract | Plasmodium vivax re-emerged in 1993 near the demilitarized zone (DMZ) in South Korea, although P. vivax malaria disappeared in South Korea in 1979. The re-emergence of malaria in South Korea is believed to have originated from infection by mosquitoes from North Korea across the DMZ. The principal vector of P. vivax in the Korean Peninsula is Anopheles sinensis. The density of An. sinensis has a peak during the second week of July. The North Korean strain of P. vivax has 2 characteristics: a wide distribution of the terms of relapse and a high rate of relapse. Therefore, we may well wonder why the incidence of malaria is concentrated in summer, especially in August. Mathematical models in North Korea and South Korea were constructed in which the South Korean model was affected unidirectionally by the North Korean model. We carried out simulations of the model for the Paju-shi and Yonchon-gun situations near the DMZ region. The simulation results followed the time-course of the re-emergence of P. vivax there, and revealed the mechanism of the elevation of the incidence of P. vivax in summer. |
| Keywords | DMZ Korea model Plasmodium vivax re-emergence |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 1 |
| End Page | 7 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 40007297549 |
| JaLCDOI | 10.18926/fest/11423 |
|---|---|
| FullText URL | 012_007_018.pdf |
| Author | Imura Keigo| XiaoDong Wang| Ishikawa, Hirofumi| |
| Abstract | The elliptic curve cryptosystem is a popular cryptosystem. Its safety depends on the difficulty of the elliptic curve discrete logarithm problem (ECDLP). From the viewpoint of ECDLP, it is very interesting to determine the order of elliptic curves. We tabulate the order of elliptic curves on the finite field of characteristic two using the Schoof algorithm, which is an efficient algorithm to decide orders. The Schoof algorithm is carried out by O(log(8)q). Because the calculation of y(q2) occupies most of the time used to execute the Schoof algorithm, it is necessary to reduce the amount of y(q2) calculations. |
| Keywords | elliptic curve order division polynomial Schoof algorithm finite field of characteristic two |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2007-03-15 |
| Volume | volume12 |
| Issue | issue1 |
| Start Page | 7 |
| End Page | 18 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313838 |
| JaLCDOI | 10.18926/fest/11424 |
|---|---|
| FullText URL | 011_009_014.pdf |
| Author | Nishina Tomohiko| Tian Tian Chen| Fujita Kazutoshi| Ishikawa, Hirofumi| |
| Abstract | The red fox (Vulpes vulepes) and the vole ( Clethrionomys refocanus) are principal hosts of Echinococcus multilocularis in Hokkaido, Japan. How protoscoleces increases in voles and the level of immunity in foxes remain unknown because of the lack of survey data, so that it is important to clarify these mecahnisms in order to develop control strategies against E. multilocularis. In this study, the growth of protoscoleces in the infected voles was approximated as the logistic curve, the level of immunity in the fox was assumed to depend on the experience of the infection with E. multilocularis, and the worm burden in the fox was assumed to be governed by the amount of protoscoleces in the vole. Our model showed that the population densities of the hosts and the level of immunity influenced the prevalence of the E. multilocularis. |
| Keywords | Echinococcus multilocularis protoscoleces immunity worm burden stochastic model |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 9 |
| End Page | 14 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002314034 |
| JaLCDOI | 10.18926/fest/11425 |
|---|---|
| Title Alternative | A mathematical model of Plasmodium falciparum transmission incorporating drug resistance: Simulations of the Solomon Islands situation |
| FullText URL | 012_019_027.pdf |
| Author | Chen, Tiantian| Nishina, Tomohiko| Hisakane, Naoto| Ishikawa, Hirofumi| |
| Abstract | The Solomon Islands are known as a high endemic region of malaria. The resistance of Plasmodium falciparum to chloroquine has been confirmed since 1980 in the Solomon Islands, and the spread of chloroquine resistance is a big hurdle to malaria control. We have constructured the model for P. falciparum making allowance of chloroquine resistance. We distinguish the infection of resistance strains from that of sensitive strains in both the human and the vector populations. Since the overall parasite rate and the parasite rate of gametocytes for P. falciparum are strongly dependent on age, the human population is divided into 7 age groups in the model. The epidemiological parameters are determined by malariological survey in northeastern Guadalcanal (Ishii et al.) and the sporozoite rate in vector population is assumed as 0.1% based on the entomological study (Harada et al.) Our study aims at estimating the effect of mass drug administration under the presence of drug-resistance and also analyzing the escalation of drug-resistance through the transmission model for P. falciparum which can deal with chloroquine resistance. |
| Keywords | Solomon Islands Plasmodium falciparum drug resistance model |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2007-03-15 |
| Volume | volume12 |
| Issue | issue1 |
| Start Page | 19 |
| End Page | 27 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313858 |
| JaLCDOI | 10.18926/fest/11426 |
|---|---|
| Title Alternative | Hydrodynamic and structural simulation by a particle approach |
| FullText URL | 011_019_026.pdf |
| Author | Morita, Toshimasa| Kajiwara, Tsuyoshi| |
| Abstract | This paper is a research report concerning the hydrodynamic simulation and the structural simulation by a particle approach. The proposal particle method model is introduced in this report, and the calculation example by the calculation code which uses the proposal model is shown. The high possibility of the particle method is shown by calculation examples which is difficult to solve by FDM and FEM. It is shown by caliculation examples of both the hydrodynamic and the structure analysis problems that the proposal model enables us to treat the fluid and the structure in a unified way. |
| Keywords | Particle Simulation Hydrodynamic analysis Structural analysis |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 19 |
| End Page | 26 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313653 |
| JaLCDOI | 10.18926/fest/11427 |
|---|---|
| Title Alternative | Kernel density estimation on the interval |
| FullText URL | 011_027_030.pdf |
| Author | Ueki, Masao| Fueda, Kaoru| |
| Abstract | In the field of data analysis, including environmental data, it is important to know the shape of underlying density function. In this case, we often use histogram which provides an information about the board line of density's curve. However histogram can not be the best method when the true density function is continuous, as is often the cases. On the other hand, kernel density estimator is another popular one which gives a continuous function. In some practical cases, however, there is a case that some knowledges about the range of the data are previously given. For instance, data of percentage, such as mortality rate, only takes the values on [0,1]. This paper considers two different modifications in kernel density estimator for the data on known interval and compares them. |
| Keywords | kernel density estimator adaptive bandwidth data on finite interval |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 27 |
| End Page | 30 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313832 |
| JaLCDOI | 10.18926/fest/11428 |
|---|---|
| Title Alternative | Socially Responsible Investment to Japanese Companies |
| FullText URL | 011_031_041.pdf |
| Author | Ikeda, Yousuke| Fueda, Kaoru| |
| Abstract | Recently, Socially Responsible Investment, which is a policy of investment regarding with companies' social, environmental and moral value, attracts attention of investors. However, there are little data to explain the effectiveness of the SIR in Japan. In this paper we report the relation between environmental management and stock price of Japanese companies. |
| Keywords | Socially Responsible Investment Environmental rating Eco fund |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 31 |
| End Page | 41 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313974 |
| JaLCDOI | 10.18926/fest/11429 |
|---|---|
| Title Alternative | Variable selection besed on global score estimation and its numerical investigation |
| FullText URL | 012_029_040.pdf |
| Author | Mori, Yuichi| Fueda, Kaoru| Iizuka, Masaya| |
| Abstract | A variable selection method using global score estimation is proposed, which is applicable as a selection criterion in any multivariate method without external variables such as principal component analysis. This method selects a reasonable subset of variables so that the global scores, e.g. principal component scores, which are computed based on the selected variables, approximate the original global scores as well as possible in the context of the least squares. Three computational steps are proposed to estimate the scores according to how to satisfy the restriction that the estimated global scores are mutually uncorrelated. Three different examples are analyzed to demonstrate the performance and usefulness of the proposed method numerically, in which three steps are evaluated and the results obtained using four cost-saving selection procedures are compared. |
| Keywords | principal components least square orthogonalization cost-saving selection |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2007-03-15 |
| Volume | volume12 |
| Issue | issue1 |
| Start Page | 29 |
| End Page | 40 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313992 |
| JaLCDOI | 10.18926/fest/11430 |
|---|---|
| FullText URL | 011_043_049.pdf |
| Author | Saif Eldeen S. A.| Taniguchi, Takeo| |
| Abstract | The simulation of mechanical bahavior of steel fiber reinforced concrete SFRC is introduced utilizing the homogenization method. The random distribution of fibers has been converted to a periodic distribution. Using the periodicity assumption, the boundary conditions for the unit cell are derived. The homogenized stiffness matrix is determined in elastic and plastic range. A numerical example to study the effect of the volume fraction of fibers is introduced. |
| Keywords | fiber reinforced concrete composite materials homogenization periodicity finite element |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 43 |
| End Page | 49 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313548 |
| JaLCDOI | 10.18926/fest/11431 |
|---|---|
| FullText URL | 011_051_055.pdf |
| Author | Nishigaki, Makoto| Komatsu, Mitsuru| Akudago John Apambilla| Shinshi Yoshihide| Kawakami Kenji| Kumamaru Koji| |
| Abstract | A laboratory validation of a proposed new method of determining the in-situ effective porosity of unsaturated soils was carried out on unsaturated river sand. The proposed method consists of boring a small diameter hole into the soil and inserting an Amplitude Domain Reflectometry (ADR) probe at the bottom part of the hole. Water is supplied into the hole till saturation and later de-saturated. The water content with time is determined from the ADR probe voltage potential readings. The effective porosity is determined from the difference between the saturated and de-saturated water contents. However, in the laboratory, the water is supplied through the top and bottom parts of the sample. From the experiments the obtained effective porosity ranged from 0.28 to 0.29 for wetting from the top with an average of 0.287 and 0.29 to 0.30 for wetting from the bottom with an average of 0.293. The determined effective porosity ranged from 71.7-73.3% of the real initial porosity of 0.40 of the river sand. The maximum attained degree of saturation during the experiment was 91%. The results indicated that the method will be suitable and useful in determining the effective porosity of medium grained unsaturated soils. |
| Keywords | Underground dam Effective porosity Storage capacity Freshwater development |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 51 |
| End Page | 55 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313335 |
| JaLCDOI | 10.18926/fest/11432 |
|---|---|
| FullText URL | 012_041_049.pdf |
| Author | Chaerul Mochammad| Tanaka, Masaru| V. Shekdar Ashok| |
| Abstract | In Indonesia, municipal solid waste (MSW) is becoming increasing complex due to variety of reasons like the increasing quantity of MSW, rising public awareness and municipal administration policies in different cities and surrounding regencies. After the landslide accident at Bandung city disposal site, most of related agencies are trying their level best to improve the situation. Against this backdrop, this paper attempts to analyze the present system of MSW addressing variety of aspects such as quantity and composition of MSW being generated, operational management, legal system as well as financial aspect. The systematic assessment has revealed the problem like lack of legal framework, low coverage, improper waste storage, less encouragement for composting, and lack of proper disposal practices. Finally, an action plan is presenting suggestion for immediate and future addressing the issues like the operational management, institutional, financial aspect, public participation & environmental education. |
| Keywords | municipal solid waste strategic actions Indonesia |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2007-03-15 |
| Volume | volume12 |
| Issue | issue1 |
| Start Page | 41 |
| End Page | 49 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313633 |
| JaLCDOI | 10.18926/fest/11433 |
|---|---|
| Title Alternative | Measuring Method of Water Content for High compacted Bentonite Block by using Frequency Domain Reflectometry |
| FullText URL | 011_057_064.pdf |
| Author | Nishigaki, Makoto| Komatsu, Mitsuru| Chijimatsu, Masakazu| |
| Abstract | In the high-level radioactive waste disposal project, in order to know the infiltration behavior, it have to be examined that the bentonite buffer material is used as a barrier, and the measuring device of moisture with the high accuracy is required. In this study it is discussed the usefulness for Frequency Domain Refrectometry (FDR) method through the measuring dielectric constant and making the calibration curve for the several kinds of bentonite material block (pure and silica sand mixing). |
| Keywords | Measuring syatem Bentonite Volumetric mousture content Frequency domain reflectometry |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 57 |
| End Page | 64 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313913 |
| JaLCDOI | 10.18926/fest/11434 |
|---|---|
| FullText URL | 012_051_061.pdf |
| Author | Liu Xianbing| Tanaka, Masaru| Matsui, Yasuhiro| |
| Abstract | Serious adverse impacts on the environment and human health from the recycling and disposal of electronic waste have occurred in the past and continue to occur in China today, due to the lack of a national management strategy. With aiming to support the management strategy development, a study was carried out to plan and quantitatively evaluate the optional management frameworks for the selected five main types of large electronic home appliances in Beijing, the capital city and a typically big municipality in China. This paper outlined the main findings yielded from the series of assessment studies which started from the generation amount prediction and material flow analysis of the used electronic appliances, planning and optimization of the collection & transportation frameworks and ended at the economic evaluation of the optional recycling processes for the waste appliances. Although the revenue could be expected from the result of isolated evaluation of the recycling processes, the entire system will be economically unavailable if the used appliances are still collected from the owners at current prices. The traditional understanding of householders on the values of their used appliances should be changed in Beijing and China as a whole. Establishment of a formal collection system that could take back the used appliances at lower prices (less than 40% of the current level) is the key for the construction of a formal management framework with sustainability. |
| Keywords | Waste electronic home appliances Management framework Assessment Beijing China |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2007-03-15 |
| Volume | volume12 |
| Issue | issue1 |
| Start Page | 51 |
| End Page | 61 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313493 |
| JaLCDOI | 10.18926/fest/11435 |
|---|---|
| FullText URL | 011_065_074.pdf |
| Author | Dincsoy Enver Erdinc| Ichiminami, Fumikazu| |
| Abstract | Regional development and regional planning subjects are very closely linked with the development projects in Turkey as much as in the world. The main applications and studies are usually based on the elimination of disparities among regions. Within this framework, this study has firstly aimed to set out the regional development objectives in Turkey. Secondly, we tried to find out the effect of new regional approaches on Turkish regional structure. Hence, as an approach different from other studies, we focused on NUTS (Nomenclature of Territorial Units for Statistics) regions instead of geographical units (regions) studies. In the following parts of the study, thirdly, the efforts of Turkey about the regional development have been discussed and assessed by using Neoclassic Growth Model in terms of per capita income distributions for new region groups. To compare the results of analysis among regional units, the most important development projects for Turkey were also taken as a different approach unlike other sudies. Previous studies based on geographic regions showed that the basic tendency of per capita income distribution is 'Divergence' unlike expected 'Convergence' in Turkey, but in our study, we found more optimistic results for Turkey, in which per capita income distributions have a tendency to converge after 1997. |
| Keywords | Regional Development Turkey NUTS Regional Development Projects Convergence |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 65 |
| End Page | 74 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002314049 |
| JaLCDOI | 10.18926/fest/11436 |
|---|---|
| FullText URL | 012_063_070.pdf |
| Author | Saif Eideen S. A.| Taniguchi, Takeo| |
| Abstract | The homogenization method is used to model steel fiber reinforced concrete SFRC by converting the random distribution of fibers to a periodic one. The periodic distribution is chosen to hold similar properties of the composite material in both perpendicular directions to represent an average approximation for the random distribution. The material is modeled as a composite with brittle matrix and elastic fibers. Two patterns of the unit cell are examined to establish the homogenized stiffiness matrix in elastic and plastic stages. A rigid plastic bonding is considered between matrix and fibers. The smeared crack model is used to represent the nonlinearity of concrete. The validity of the homogenized model is examined by comparing the numerical results with the experimental results. The results show good agreement with the experimental work when a suitable pattern of the unit cell is used. |
| Keywords | fiber reinforced concrete composite materials homogenization periodicity finite element |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2007-03-15 |
| Volume | volume12 |
| Issue | issue1 |
| Start Page | 63 |
| End Page | 70 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313536 |
| JaLCDOI | 10.18926/fest/11437 |
|---|---|
| FullText URL | 011_075_081.pdf |
| Author | Dincsoy Enver Erdinc| Ichiminami, Fumikazu| |
| Abstract | This study aims to examine the Southeastern Anatolia Project in Turkey, which contains irrigation, energy and drinking water development schemes. The project is the biggest regional development effort ever undertaken by Turkish Government and has influenced the sustainable economic and human development targets. With the completion of each step of the project, it has been expected that there have been many important economic and social changes in Turkish regions, especially the southeast part of Turkey (called as "Southeastern Anatolia Region") and its surrounding areas. The project also interests in both Turkey and its related regions and sustainability is a major issue of concern. Following a brief introduction of the project, the paper examines the type of recent social-economic changes in the region and Turkey in terms of sustainable development components. Under the light of our investigations from different perspectives, it is observed that GAP region with its development project is very far from expectations in the point of sustainability. |
| Keywords | Sustainability Southeastern Anatolia Region GAP Regional Development GDP per capita Turkey |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 75 |
| End Page | 81 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313496 |
| JaLCDOI | 10.18926/fest/11438 |
|---|---|
| Title Alternative | Characteristics of Dredged Sludges by Desiccation |
| FullText URL | 011_083_088.pdf |
| Author | Takisawa, Tomoaki| Nishimura, Shin-ichi| Murakami, Akira| |
| Abstract | To examine the possible reuse of dredged sludge in view of construction material, physico-chemical properties and geotechnical characteristics of desiccated sludge are investigated through laboratory experiments. The consistency test, the pH test, the XRF test and the X-ray diffraction analysis are carried out for physico-chemical proteries, and the conolidation test and the permeability test are made for geotechnical characteristics. It is concluded that the history of desiccation changes the consistency of sludge and affects its permeability and consolidation bahavior. |
| Keywords | Dredged sludges consolidation permeability solidification material XRF |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 83 |
| End Page | 88 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313636 |
| JaLCDOI | 10.18926/fest/11439 |
|---|---|
| FullText URL | 012_071_076.pdf |
| Author | Chen W.| Yoshida R.| Kawara, Osami| |
| Abstract | The Asahi River Dam reservoir is one of the important fresh water resources in Okayama, Japan, and its eutrophication has been noted since the 1980s. Therefore, aeration has been applied to control the growth of phytoplankton. In this study, we discussed the effect of aeration and water-intake depth on the water quality distribution in the reservoir, based on numerical simulation and observation. The principal conclusions were as follows:(1) The numerical simulation models applied here reproduced observations fairly well. (2) Water intake from the surfacce layer reduced the concentration of chlorophyll a in the surface layers. Water intake from the middle or bottom layer improved the deficit of dissolved oxygen in the bottom layers. (3) Aeration together with water intake from the middle or bottom layer improved the deficit of dissolved oxygen in the bottom layers. |
| Keywords | the Asahi River Dam Reservoir numerical simulation eutrophication water intake depth dissolved oxygen chlorophylla |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2007-03-15 |
| Volume | volume12 |
| Issue | issue1 |
| Start Page | 71 |
| End Page | 76 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002314056 |
| JaLCDOI | 10.18926/fest/11440 |
|---|---|
| Title Alternative | Measurement of thermal conductivity in the soils of Shirakami Mountains |
| FullText URL | 011_089_092.pdf |
| Author | Hanzawa, Wakako| Moroizumi, Toshitsugu| Sasaki, Choichi| |
| Abstract | Thermal conductivity of soils in Shirakami Mountains that was registered on UNESCO's World Natural Heritage in 1993 were measured using a twin transient-state cylindrical-probe method. The typical results were as follows:(1) Thermal conductivity of the soils in Shirakami Mountains increased according to an increase of soil water content, which was the same tendency as the other soils. (2) The thermal conductivity of the soils was about 0.2～0.3 Wm(-1)K(-1) smaller than volcanic ash soils, and it showed the same tendency as leaf mold. |
| Keywords | Shirakami Mountains Thermal conductivity Twin transient-state cylindrical-probe method Volumetric water content |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 89 |
| End Page | 92 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313628 |
