نتایج جستجو برای: machine deterioration

تعداد نتایج: 295769  

Journal: :علوم گیاهان زراعی ایران 0
فاطمه السادات حسینی خواه دانشجوی کارشناسی ارشد، دانشکدة کشاورزی، دانشگاه بیرجند سهیل پارسا استادیار، دانشکدة کشاورزی، دانشگاه بیرجند رضا توکل افشاری استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج مجید جامی الاحمدی استادیار، دانشکدة کشاورزی، دانشگاه بیرجند علیرضا اسماعیلی دانشجوی دکتری، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

abstract seed deterioration of seed is one of the most important limiting or even hindering factors in germination. the main purpose of this study was to determine the effects of salicylic acid and gibberellic acid hormonal on improvement and prevailing seed deterioration in two sesame cultivars. this studywere carried out at the department of agronomy and plant breeding seed laboratories of co...

Physiological and biochemical changes during sunflower seed deterioration were studied during incubation for 2, 4, 6 and 8 days at 43 °C and a relative humidity of 100%. Parameters such as germination percentage, germination rate, seedling length, seedling vigor and protein decreased whereas electrical conductivity, fatty acids and lipid hydroperoxides increased during seed deterioration. Incre...

Journal: :International Journal of Health Sciences (IJHS) 2022

Pollution, an unhealthy lifestyle, UV radiation, and other factors can contribute to skin cancer. A variety of machine learning techniques have been developed in the past detect such malignancies before they worsen. The goal this article is utilize a convolutional neural network segment lesion images. purpose study see how deep may be utilized photos. People discover what diseases have, protect...

1970
Gopinadhan Paliyath Krishnaraj Tiwari Haiying Yuan Bruce D. Whitaker

Ripening and senescence are the ultimate phases in the developmental events of fruits that result in the expression of the quality characteristics inherent to the fruit. Although it is difficult to demarcate a dividing point between ripening and senescence, the former can be designated as the quality-developing phase, whereas the latter predominantly involves the loss of quality. Degradation of...

Journal: :journal of industrial strategic management 0
kimia ahmadzadeh bachelor of engineering, university of science, and technology fatemeh karami graduate student in industrial engineering, university of science and technology kamran shhanqy assistant professor, faculty member, university of science and technology

selecting an appropriate manufacturing machine is a very important and complex problem for firms, which usually have to deal with both qualitative and quantitative criteria. taking into account the differences among machines in terms of cost, speed, quality and after sale services, type and number of machines are important parameters to consider. therefore, the goal of this paper is to propose ...

2015
Gang Luo Bryan L. Stone Bernhard Fassl Christopher G. Maloney Per H. Gesteland Sashidhar Yerram Flory Nkoy

BACKGROUND Pediatric asthma affects 7.1 million American children incurring an annual total direct healthcare cost around 9.3 billion dollars. Asthma control in children is suboptimal, leading to frequent asthma exacerbations, excess costs, and decreased quality of life. Successful prediction of risk for asthma control deterioration at the individual patient level would enhance self-management ...

2004
Jerzy Słowikowski

The paper discusses the problem of a machine being “sensed” by its operator. It is shown that reducing the operator’s loading with work necessary for controlling – caused by a wide use of servomechanisms – can result in deterioration of the quality of work of the human-machine system. To study this quality, the quality of regulation criterion used in automatic control engineering was chosen. It...

Journal: :Journal Comp. Netw. and Communic. 2013
Fabrizio Iacopetti Sergio Saponara Luca Fanucci Bruno Neri

is paper presents wireless sensing systems to increase safety and robustness in industrial process control, particularly in industrial machines for marble slab working. e process is performed by abrasive or cutting heads activated independently by the machine controller when the slab, transported on a conveyer belt, is under them. Current slab detection systems are based on electromechanical ...

2012
Mohammad Asghari

One of the basic and significant problems that a shop or a factory manager encounters is a suitable scheduling and sequencing of jobs on machines. One type of scheduling problem is just-in-time scheduling. Motivated by just-intime manufacturing, we consider the multi-objective problem. These objectives minimize total weighted tardiness, earliness and minimize total flow time with fuzzy paramete...

2013
Guochen Sun Yuewu Li

This paper addresses some single-machine scheduling problems with past-sequence-dependent (p-s-d) delivery times and deteriorating jobs. By the past-sequence-dependent (p-s-d) delivery times, we mean that the delivery time of any job is proportional to the job’s waiting time. It is assumed that the deterioration process reflects a increase in the process time as a function of the job’s starting...

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