A5101706549- Groundwater and Isotope Geochemistry
- CO2 Sequestration and Geologic Interactions
- Gastric Cancer Management and Outcomes
- Groundwater flow and contamination studies
- Methane Hydrates and Related Phenomena
- Geothermal Energy Systems and Applications
- Isotope Analysis in Ecology
- Geological and Geochemical Analysis
- Hydrocarbon exploration and reservoir analysis
- Colorectal Cancer Treatments and Studies
- Gas Sensing Nanomaterials and Sensors
- Geology and Paleoclimatology Research
- Calcium Carbonate Crystallization and Inhibition
- Analytical Chemistry and Sensors
- Metastasis and carcinoma case studies
- Silicon Nanostructures and Photoluminescence
- Mine drainage and remediation techniques
- Paleontology and Stratigraphy of Fossils
- Luminescence Properties of Advanced Materials
- earthquake and tectonic studies
- Quantum Dots Synthesis And Properties
- nanoparticles nucleation surface interactions
- Cholangiocarcinoma and Gallbladder Cancer Studies
- Neuroendocrine Tumor Research Advances
- Glass properties and applications
University of Toyama
2015-2024
Toyama University Hospital
2024
Mitsubishi Materials (Japan)
2000-2021
Red Cross Hospital
2020-2021
Fisk University
2002-2018
Kyoto University
1977-2014
Kouseiren Takaoka Hospital
2012
Kyoto Katsura Hospital
2009-2011
National Cancer Center Hospital East
2011
Sensors (United States)
2007
Differential scanning calorimetry, Raman scattering, optical absorption, and upconversion of infrared to green luminescence have been studied for Er3+-doped lead-germanate glass 55GeO2⋅20PbO⋅10BaO⋅10ZnO⋅5K2O (GPBZK) lead-tellurium-germanate 30GeO2⋅30PbO⋅30TeO2⋅10CaO (GPTC). Judd–Ofelt intensity parameters Er3+ in the two host glasses were determined used calculate radiative transition rates lifetimes. Values quantum yield 4S3/2→4I15/2 (797 nm) (547 efficiency obtained. It has found that rate...
Increased cost associated with the used of high quality materials have led to need for local soils be in civil engineering works. In this paper, geo-chemical approaches coupled conventional geotechnical techniques has been investigate vertical and lateral peculiar index properties (EIP) micaschist derived from Mfou, Central-Cameroon their uses road construction. The X-ray diffraction (XRD) analysis conducted on indicated absence swelling clays. main mineral phases were quartz, kaolinite,...
Sulphide and sulphate minerals mixed with V2O5 SiO2, were heated in a vacuum at 950°C for 15 minutes. The evolved SO3 was converted to SO2 by reaction metallic Cu sulphur isotope determinations. This technique yields of consistent oxygen composition regardless whether sulphide or is converted. reproducibilities conversion δ34S values 98 ±5% ±0.2‰, respectively. particularly suitable small samples. Successful determinations have been obtained natural samples containing less than 1 mg S. In...
Experiments on CO2-water-rock interaction at hydrothermal temperatures have been performed to investigate dissolution and precipitation phenomena, including Ca extraction from rocks that might occur during CO2 sequestration into geothermal fields. Distilled water samples were exposed a atmosphere temperature of 25°C pressures up 6 MPa. The resulting solutions then reacted with granodiorite the Ogachi hot/dry rock field labradorite, 200°C 120°C respectively. calcium concentrations in had...
Computer simulations by a Monte Carlo method are carried out for the two-species soft-core model to demonstrate an example of melting curve maximum phenomena observed in many substances. In this model, atoms assumed have one excited internal level which they effective radius smaller than that ground level. The interact with each other through potential inverse power 12. soft core depends on radii relevant atoms. density dependences pressure and free energy obtained fluid single occupancy...
Background: It has been reported that morphologic response to preoperative chemotherapy is an independent prognostic factor in patients who undergo hepatic resection of colorectal liver metastases (CLM). The aim this study was evaluate the predictive value first-line with CLM. Methods: We assessed 41 CLM received fluorouracil-based or without bevacizumab as between April 2006 and June 2012. Three blinded radiologists evaluated computed tomography images classified them optimal, incomplete no...
We present a novel fiber optic sensor for real-time sensing of silica scale formation in geothermal water. The is fabricated by removing the cladding multimode to expose core detect scale-formation-induced refractive index change. A simple experimental setup was constructed measure transmittance response using white light as source and spectroscopy detector. field test performed on water containing 980 mg/L dissolved at 93 °C Sumikawa Geothermal Power Plant, Japan. decreased due from An...
The aim of this study was to assess the microbial diversity associated with Lake Nyos, a lake an unusual chemistry in Cameroon. Water samples were collected during dry season on March 2013. Bacterial and archaeal communities profiled using Polymerase Chain Reaction-Denaturing Gradient Gel Electrophoresis (PCR-DGGE) approach 16S rRNA gene. results indicate stratification both along water column. Altogether, physico-chemical data sequences suggest close correspondence potential functions...
Endoscopic submucosal dissection (ESD) is an accepted standard treatment for early gastric cancer but not widely used in the esophagus because of technical difficulties. To increase safety esophageal ESD, we a scissors-type device called stag beetle (SB) knife. The aim this study was to determine efficacy and ESD using SB We performed single-center retrospective, uncontrolled trial. A total 38 lesions were excised by from 35 consecutive patients who retrospectively divided into following two...
Erbium (Er)-doped ZnO thin films were grown on fused silica (SiO2) substrates by pulsed electron-beam deposition (PED) and analysed Rutherford backscattering spectrometry (RBS), ultraviolet–visible absorption, photoluminescence (PL). Subsequent annealing at 700 °C produces remarkable effects the optical properties of Er-doped films. Under 325 nm excitation, a dramatic increase deep-level emission from 450 to 680 was observed annealed 488 PL spectrum revealed sharp well-resolved...
This study proposes an optical fiber sensor for calcium carbonate (CaCO3) scale formation in water. The is easily fabricated by removing the cladding of a multimode to expose core towards surrounding medium order detect refractive index change. A variation transmittance response from high CaCO3 which precipitated on surface was observed. proposed setup can be used analyze over wide range wavelength using white light as source and also spectroscopy detector. curve percentage time showed that...