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Target rotation parameter estimation for ISAR imaging via frame processing

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红外与激光工程 2016年第3期45卷 7-17页

作者： Xuezhi Wang Yajing Huang Weiping Yang bill moran School of Electrical and Computer Engineering RMIT University School of Electronic Science and Engineering National University of Defense Technology

Frame processing method offers a model-based approach to Inverse Synthetic Aperture Radar(ISAR) imaging. It also provides a way to estimate the rotation rate of a non-cooperative target from radar returns via the frame operator properties. In this paper, the relationship between the best achievable ISAR image and the reconstructed image from radar returns was derived in the framework of Finite Frame Processing theory. We show that image defocusing caused by the use of an incorrect target rotation rate is interpreted under the FP method as a frame operator mismatch problem which causes energy dispersion. The unknown target rotation rate may be computed by optimizing the frame operator via a prominent point. Consequently, a prominent intensity maximization method in FP framework was proposed to estimate the underlying target rotation rate from radar returns. In addition, an image filtering technique was implemented to assist searching for a prominent point in practice. The proposed method is justified via a simulation analysis on the performance of FP imaging versus target rotation rate *** of the proposed method is also confirmed from real ISAR data experiments.

关键词： ISAR imaging frame theory frame processing target rotation rate radar waveforms

Taking the pulse of a plant:dynamic laser speckle analysis of plants

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红外与激光工程 2016年第9期45卷 7-18页

作者： Zhong Xu Wang Xuezhi Cooley Nicola Farrell Peter moran bill Department of Infrastructure Engineering University of Melbourne School of Electrical and Computer Engineering Royal Melbourne Institute Technology Higher Education-Primary Industy NMIT and Melbourne PolytechnicNMIT Epping Campus Department of Electrical and Electronic Engineering University of Melbourne

Ideally, to achieve optimal production in agriculture, crop stress needs to be measured in real-time, and plant inputs managed in response. However, many important physiological responses like photosynthesis are difficult to measure, and current trade-offs between cost, robustness, and spatial measurement capacity of available plant sensors may prevent practical in-field application of most current sensing techniques. This paper investigates a novel application of laser speckle imaging of a plant leaf as a sensor with an aim, ultimately, to detect indicators of crop stress: changes to the dynamic properties of leaf topography on the scale of the wavelength of laser light. In our previous published work, an initial prototype of the laser speckle acquisition system specific for plant status measurements together with data processing algorithms were developed. In this paper, we report a new area based statistical method that improves robustness of the data processing against disturbances from various sources. Water and light responses of the laser speckle measurements from cabbage leaves taken by the developed apparatus are exhibited via growth chamber experiments. Experimental evidence indicates that the properties of the laser speckle patterns from a leaf are closely related to the physiological status of the leaf. This technology has the potential to be robust, cost effective, and relatively inexpensive to scale.

关键词：磁光阵列光存储融合存储

Modeling and Classifying Surface Roughness via Laser Speckle Statistics

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Modeling and Classifying Surface Roughness via Laser Speckle...

逃离导向基团:非活化烯烃的不对称碳-碳键构筑

2011 World Congress on Engineering and Technology(CET 2011)

作者： Peter Farrell bill moran Department of Electrical ＆ Electronic Engineering University of MelbourneAustralia

Laser speckle interferometry can be used to classify roughness level of a randomly textured surface,where the performance of classification is dominated by the statistical method *** this paper,a simulation model of laser speckle patterns based on coherent electromagnetic wave scattering from a purely randomly textured surface under various roughness levels is described and *** model enables efficient simulation methods to be used for the study of statistical properties of laser speckle patterns and understanding the relationship between speckle statistics and surface *** addition,an autocorrelation based analysis method is proposed to summarise the statistical signatures of various roughness levels parameterised by the amplitude of a Gaussian random *** presented statistical results,which are computed using simulated laser speckle patterns under two different measurement scenarios,show a consistent agreement with *** proposed analysis method is also demonstrated to be capable to accurately discriminate roughness class of a surface.

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Science Bulletin 2024年第3期69卷 290-292页

作者： Hongyu Zhong bill morandi Laboratorium für Organische Chemie ETH ZürichZürich 8093Switzerland

Unfunctionalized olefins are produced on an enormous scale in the petroleum *** example,propene and butenes are produced annually on over 100-and 40-million-ton *** metal catalysis is an attractive approach for the valorization of such chemical feedstocks,which provides value-added building blocks that can be further transformed into pharmaceuticals and functional ***,unfunctionalized olefins are relatively inert molecules due to their weak interaction with the metal ***,the functionalization of unactivated olefins has been a long-standing challenge in transition metal *** use of directing groups has become a universal strategy to overcome the reactivity and selectivity issues[1].Directing groups are strongly binding functionalities that serve to coordinate to the metal center and bring the unactivated moiety closer to the metal.

关键词： moiety overcome closer

Speed and surface steepness affect internal tibial loading during running

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Journal of Sport and Health Science 2024年第1期13卷 118-124页

作者： Hannah Rice Markus Kurz Patrick Mai Leon Robertz Kevin bill Timothy R.Derrick Steffen Willwacher Department of Physical Performance Norwegian School of Sport SciencesOslo 0806Norway Sports Tech Research Centre Mid Sweden UniversityÖstersund SE-83125Sweden Department of Mechanical and Process Engineering Offenburg University of Applied SciencesOffenburg 77652Germany Institute of Biomechanics and Orthopaedics German Sport University CologneCologne 50933Germany Department of Kinesiology Iowa State UniversityAmesIA 50011USA

Background:Internal tibial loading is influenced by modifiable factors with implications for the risk of stress *** encounter varied surface steepness(gradients)when running outdoors and may adapt their speed according to the *** study aimed to quantify tibial bending moments and stress at the anterior and posterior peripheries when running at different speeds on surfaces of different ***:Twenty recreational runners ran on a treadmill at 3 different speeds(2.5 m/s,3.0 m/s,and 3.5 m/s)and gradients(level:0%;uphill:+5%,+10%,and+15%;downhill:-5%,-10%,and-15%).Force and marker data were collected synchronously *** moments were estimated at the distal third centroid of the tibia about the medial-lateral axis by ensuring static equilibrium at each 1%of *** was derived from bending moments at the anterior and posterior peripheries by modeling the tibia as a hollow ***-way repeated-measures analysis of variance were conducted using both functional and discrete statistical ***:There were significant main effects for running speed and gradient on peak bending moments and peak anterior and posterior *** running speeds resulted in greater tibial *** uphill at+10%and+15%resulted in greater tibial loading than level *** downhill at-10%and-15%resulted in reduced tibial loading compared to level *** was no difference between+5%or-5%and level ***:Running at faster speeds and uphill on gradients≥+10%increased internal tibial loading,whereas slower running and downhill running on gradients≥-10%reduced internal *** running speed according to the gradient could be a protective mechanism,providing runners with a strategy to minimize the risk of tibial stress injuries.

关键词： Bending moments Gradient Musculoskeletal modeling Overuse injury Tibial stress Training factors

Gold Standard for Skin Cancer Treatment: Surgery (Mohs) or Microscopic Molecular-Cellular Therapy (Curaderm)?

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Journal of Cancer Therapy 2024年第2期15卷 33-47页

作者： bill Elliot Cham Australasian Medical Research Port Vila Republic of Vanuatu

Non-melanoma skin cancers or keratinocyte cancers such as basal cell carcinoma and squamous cell carcinoma make up approximately 80% and 20% respectively, of skin cancers with the 6 million people that are treated annually in the United States. 1 in 5 Americans and 2 in 3 Australians develop skin cancer by the age of 70 years and in Australia it is the most expensive, amassing $1.5 billion, to treat cancers. Non-melanoma skin cancers are often self-detected and are usually removed by various means in doctors’ surgeries. Mohs micrographic surgery is acclaimed to be the gold standard for the treatment of skin cancer. However, a novel microscopic molecular-cellular non-invasive topical therapy described in this article, challenges the status of Mohs procedure for being the acclaimed gold standard.

关键词： Skin Cancer Basal Cell Carcinoma Squamous Cell Carcinoma Mohs Surgery Microscopic Molecular-Cellular Curaderm Actinic Keratosis Cosmesis

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利用红外成像技术的自动树冠温度估计

红外与激光工程 2011年第1期40卷 169-175页

作者：杨卫平王学知比尔.莫兰张焱张志龙阿什利.惠顿尼古拉.库尔利国防科技大学电子科学与工程学院湖南长沙410073 墨尔本大学电气与电子工程系墨尔本大学土地与环境学院

使用红外热像仪获取待测树冠图像,将树冠的光学图像与之配准,可采用彩色识别技术得到树叶的温度分布。这种处理的成功依赖于红外与光学图像配准,以及树叶区域精确提取的假设。实际上,简单的颜色识别算法无法正常工作。为此,提出了一种... 详细信息

使用红外热像仪获取待测树冠图像,将树冠的光学图像与之配准,可采用彩色识别技术得到树叶的温度分布。这种处理的成功依赖于红外与光学图像配准,以及树叶区域精确提取的假设。实际上,简单的颜色识别算法无法正常工作。为此,提出了一种新方法来解决温度的估计问题。潜在的树叶温度分布可以认为是两个可分离的温度密度的融合,结合颜色识别与高斯混合分布提取技术来对颜色进行识别。随后采用N-均值方法从估计的树叶温度分布中估计出参考树叶的温度,实验结果证明了算法的有效性。

关键词：树冠温度估计作物水应力指数(CWSI) 高斯混合分类数据融合颜色识别

Unique Clinical Features of Curaderm when Treating Skin Cancers

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Journal of Cancer Therapy 2024年第1期15卷 13-27页

作者： Tania Robyn Chase Kai Elliot Cham bill Elliot Cham Australasian Medical Research Port Vila Republic of Vanuatu

Basal cell carcinoma is the most common form of skin cancer and the most frequently occurring form of all cancers. Conventional treatments to remove or destroy basal cell carcinoma are indiscriminate and also remove or destroy normal skin cells resulting in compromised cosmetic outcomes. Consequences of these treatments include body-image issues, anxiety, post-traumatic stress disorder, depression, and poorer quality of social and family life. A progressive topical cream formulation, Curaderm, containing the natural BEC glycoalkaloids, have shown to have advantages over conventional treatments. However, comprehensive clinical features of the skin cancer lesions during treatment with Curaderm have to date not been reported. This report shows that using unpublished data from a large number of patients with varying sizes, types and locations of basal cell carcinomas when treated with Curaderm in a phase 3 trial, an initial increase in size of the lesions occur, followed by a reverse course, leading to complete removal of the skin cancer. The specificity and mode of action of Curaderm explains the superior cosmetic outcomes when compared with conventional therapies.

关键词： Curaderm Skin Cancer Basal Cell Carcinoma BEC Glycoalkaloids Conventional Treatments

The Value of Excipients and the Required Understanding of the Biological System in Product Development: An Impactful Example of Curaderm, a Topical Skin Cancer Treatment

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International Journal of Clinical Medicine 2024年第2期15卷 68-87页

作者： Tania Robyn Chase Kai Elliot Cham bill Elliot Cham Australasian Medical Research Port Vila Republic of Vanuatu

The incidences of nonmelanoma skin cancer are increasing worldwide, and the ongoing war on its treatment necessitates the development of effective and non-invasive methods. Through basic and clinical research, non-invasive treatments like Curaderm have been developed, leading to improved quality of life for patients. Excipients, previously considered inactive ingredients, play a crucial role in enhancing the performance of topical formulations. The development of Curaderm emphasizes the importance of understanding the interactions between active ingredients, excipients, and the biological system to create effective and affordable pharmaceutical formulations. The systematic approach taken in the development of Curaderm, starting from the observation of the anticancer activity of natural solasodine glycosides and progressing through toxicological and efficacy studies in cell culture, animals, and humans, has provided insights into the pharmacokinetics and pharmacodynamics of solasodine glycosides. It is crucial to determine these pharmacological parameters within the skin’s biological system for maximal effectiveness and cost-effectiveness of a skin cancer treatment. Curaderm, as a topical treatment for nonmelanoma skin cancer, offers benefits beyond those obtained from other topical treatments, providing hope for improved quality of life for patients.

关键词： Curaderm BEC Solasodine Glycosides Solamargine Apoptosis Skin Cancer Actinic Keratosis Keratoacanthoma Basal Cell Carcinoma Squamous Cell Carcinoma