Deposits of clastic carbonate-dominated (calciclastic) sedimentary slope systems in the rock record have been identified mostly as linearly-consistent carbonate apron deposits, even though most ancient clastic carbonate slope deposits fit the submarine fan systems better. Calciclastic submarine fans are consequently rarely described and are poorly understood. Subsequently, very little is known especially in mud-dominated calciclastic submarine fan systems. Presented in this study are a sedimentological core and petrographic characterisation of samples from eleven boreholes from the Lower Carboniferous of Bowland Basin (Northwest England) that reveals a >250 m thick calciturbidite complex deposited in a calciclastic submarine fan setting. Seven facies are recognised from core and thin section characterisation and are grouped into three carbonate turbidite sequences. They include: 1) Calciturbidites, comprising mostly of highto low-density, wavy-laminated bioclast-rich facies; 2) low-density densite mudstones which are characterised by planar laminated and unlaminated muddominated facies; and 3) Calcidebrites which are muddy or hyper-concentrated debrisflow deposits occurring as poorly-sorted, chaotic, mud-supported floatstones. These

Phd by thesis

Dictionary of Statistics and Methodology.

Radiation Oncology Physics: A Handbook for Teachers and Students

Survey on deep learning for radiotherapy.

J. DAnwl B8NrL.nd, Ph.D., isIlssU14nt professor Andhed, Physic Section, Dep.:ntm ent ofR.4dUaion Oncology, Wa e Forest Unit/miry School of Medicine in Winston-Salem, N.G. He ischairman ofthe AAPM Electronic Media Coordinating Committee, chairman ofthe new AAPM Subcommitteeon MoieCHlaTImaging in Clinical Radiation Oncology, and aformer member ofthe AAPM RildiAtion Therllpy Committee. The AAPM is headqNllTtered in College PIlTk, Md. WHO WE ARE The America n Assoc iation of Physicists in Medicine (AAPM) h J S ap proximately 4.62S mcmbers who practice or arc associn ed with medical physics.

American Association of Physicists in Medicine

Radiation therapy for breast cancer: Literature review

Hybrid volumetric modulated arc therapy for chest wall irradiation: For a good plan, get the right mixture.

http://www.rpor.eu/index.php?m=3&a=8&IDman=619

Performance characteristics and commissioning of MOSFET as an in-vivo dosimeter for high energy photon external beam radiation therapy

With the advent of computers, the development of accurate forewarning systems for incidence of crop diseases has been increasingly emphasized. Crop diseases are one of the major causes of reduction in crop yield and hence timely application of remedial measures may combat the yield loss to a great extent. Forewarning systems can help in providing prior knowledge of the time and severity of the outbreak of such diseases. Crop diseases are influenced by interaction of various factors Machine Learning for Forewarning Crop Diseases

Machine learning for forewarning crop diseases.

Background. We have analyzed the stability of CT to density curve of kilovoltage cone-beam computerized tomography (kV CBCT) imaging modality over the period of six months. We also, investigated the viability of using image value to density table (IVDT) generated at different time, for adaptive radiotherapy treatment planning. The consequences of target volume change and the efficacy of kV CBCT for adaptive planning issues is investigated. Materials and methods. Standard electron density phantom was used to establish CT to electron density calibrations curve. The CT to density curve for the CBCT images were observed for the period of six months. The kV CBCT scans used for adaptive planning was acquired with an on-board imager system mounted on a "Trilogy" linear accelerator. kV CBCT images were acquired for daily setup registration. The effect of variations in CT to density curve was studied on two clinical cases: prostate and lung. Results. The soft tissue contouring is superior in kV CBCT scans in comparison to mega voltage CT (MVCT) scans. The CT to density curve for the CBCT images was found steady over six months. Due to difficulty in attaining the reproducibility in daily setup for the prostate treatment, there is a day-to-day difference in dose to the rectum and bladder. Conclusions. There is no need for generating a new CT to density curve for the adaptive planning on the kV CBCT images. Also, it is viable to perform the adaptive planning to check the dose to target and organ at risk (OAR) without performing a new kV CT scan, which will reduce the dose to the patient.

/pdf/feasibility-study-on-effect-and-stability-of-adaptive-26evds0pcm.pdf

V. Ramasubramanian

Papers

Radiation therapy for breast cancer: Literature review

Hybrid volumetric modulated arc therapy for chest wall irradiation: For a good plan, get the right mixture.

Performance characteristics and commissioning of MOSFET as an in-vivo dosimeter for high energy photon external beam radiation therapy

Machine learning for forewarning crop diseases.

Feasibility study on effect and stability of adaptive radiotherapy on kilovoltage cone beam CT.