Xem 1-20 trên 1013 kết quả Eyes
  • Báo cáo trình bầy một ứng dụng mạng nơ ron trong điều khiển hệ thống bao gồm tay máy có gắn camera (hand-eye robot) để quan sát và bám theo mục tiêu. Phương thức điều khiển dựa trên nguyên lý tuyến tính hoá tín hiệu ảnh phản hồi. Mạng nơ ron được đưa vào nhằm giảm nhẹ tác động của những thành phần ngẫu nhiên, cho phép sử dụng các tham số có độ chính xác hạn chế vào trong mô hình động học của hệ thống. Mạng nơ ron được xem như là một yếu tố...

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  • Tham khảo tài liệu 'unit 4: in the mind’s eye', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Tài liệu tham khảo bằng tiếng Anh về hội họa - Eye of a Dog

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  • The study aims to: investigate what is the reality of using eye contact in English teaching at Dong Thap University; raise the awareness of the importance of using nonverbal communication, especially eye contact in teaching English; give suggestions for improvement.

    pdf73p nickluvik123 03-07-2014 58 12   Download

  • Harrison's Internal Medicine Chapter 29. Disorders of the Eye The Human Visual System The visual system provides a supremely efficient means for the rapid assimilation of information from the environment to aid in the guidance of behavior. The act of seeing begins with the capture of images focused by the cornea and lens upon a light-sensitive membrane in the back of the eye, called the retina. The retina is actually part of the brain, banished to the periphery to serve as a transducer for the conversion of patterns of light energy into neuronal signals.

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  • How to Draw Eyes? That is the question. Whether you just want to draw cartoon eyes or realistic eyes learning how to draw eyes will help you give your faces a lot more character. Drawing eyes is my favorite part about drawing the face. If you just sit down and study the eye for a minute you'll find that there is a lot more there than you probably realize. .To capture this on paper it doesn't hurt to have some basic knowledge of how the eye works and what makes it up. Now lets get to Drawing the Eye! When drawing...

    pdf8p moi_tim 02-10-2012 31 9   Download

  • 1. Eyes 2. Nose and Mouth 3. Shape of the Head 4. Facial Expression 5. Hair In this tutorial, I will attempt to go over how to draw general anime faces, so you can both get a better idea of how anime faces are drawn and proportioned, as well as an idea of how use what you know to create interesting original characters. I've divided this tutorial up into several sections. If you have any questions, please email me. All material is copyright by their respective owners. If you have any questions, comments, et cetera, please send them here. Arigatou gozaimasu!...

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  • Tài liệu tham khảo chuyên nghành hội họa, mỹ thuật - Detailed Dog Eye

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  • Xưa nay, chúng ta chỉ biết đến Windows Vista với màu đen huyền bí. Xin giới thiệu bản Vista có giao diện rất lạ mắt - Blue Eye color - Với màu xanh cực kỳ ấn tượng. Bản win hỗ trợ đa ngôn ngữ. Cài định ngôn ngữ mặc định là tiếng Anh. Không cần serial key, không cần kích hoạt bằng kết nối mạng

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  • Horizontal Gaze Descending cortical inputs mediating horizontal gaze ultimately converge at the level of the pons. Neurons in the paramedian pontine reticular formation are responsible for controlling conjugate gaze toward the same side. They project directly to the ipsilateral abducens nucleus. A lesion of either the paramedian pontine reticular formation or the abducens nucleus causes an ipsilateral conjugate gaze palsy.

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  • Visual Acuity The Snellen chart is used to test acuity at a distance of 6 m (20 ft). For convenience, a scale version of the Snellen chart, called the Rosenbaum card, is held at 36 cm (14 in) from the patient (Fig. 29-1). All subjects should be able to read the 6/6 m (20/20 ft) line with each eye using their refractive correction, if any. Patients who need reading glasses because of presbyopia must wear them for accurate testing with the Rosenbaum card. If 6/6 (20/20) acuity is not present in each eye, the deficiency in vision must be...

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  • Red or Painful Eye Corneal Abrasions These are seen best by placing a drop of fluorescein in the eye and looking with the slit lamp using a cobalt-blue light. A penlight with a blue filter will suffice if no slit lamp is available. Damage to the corneal epithelium is revealed by yellow fluorescence of the exposed basement membrane underlying the epithelium. It is important to check for foreign bodies. To search the conjunctival fornices, the lower lid should be pulled down and the upper lid everted.

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  • Endophthalmitis This occurs from bacterial, viral, fungal, or parasitic infection of the internal structures of the eye. It is usually acquired by hematogenous seeding from a remote site. Chronically ill, diabetic, or immunosuppressed patients, especially those with a history of indwelling IV catheters or positive blood cultures, are at greatest risk for endogenous endophthalmitis. Although most patients have ocular pain and injection, visual loss is sometimes the only symptom.

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  • Ventral view of the brain, correlating patterns of visual field loss with the sites of lesions in the visual pathway. The visual fields overlap partially, creating 120° of central binocular field flanked by a 40° monocular crescent on either side. The visual field maps in this figure were done with a computer-driven perimeter (Humphrey Instruments, Carl Zeiss, Inc.). It plots the retinal sensitivity to light in the central 30° using a gray scale format. Areas of visual field loss are shown in black.

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  • Step 1 - The Initial Line Drawing There are two things that you should carefully observe when starting your drawing of an eye: 1 - The difference in shape between the upper and lower eyelids. 2 - How the upper eyelid covers the top of the iris. (mouse over the image to view this effect.) Step 2 - The Eyeball There are two main elements to consider when drawing the glassy surface of the eye:

    pdf3p moi_tim 02-10-2012 25 5   Download

  • Parinaud's Syndrome Also known as dorsal midbrain syndrome, this is a distinct supranuclear vertical gaze disorder from damage to the posterior commissure. It is a classic sign of hydrocephalus from aqueductal stenosis. Pineal region tumors, cysticercosis, and stroke also cause Parinaud's syndrome. Features include loss of upgaze (and sometimes downgaze), convergence-retraction nystagmus on attempted upgaze, downwards ocular deviation ("setting sun" sign), lid retraction (Collier's sign), skew deviation, pseudoabducens palsy, and light-near dissociation of the pupils.

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  • Stereopsis Stereoacuity is determined by presenting targets with retinal disparity separately to each eye using polarized images. The most popular office tests measure a range of thresholds from 800–40 seconds of arc. Normal stereoacuity is 40 seconds of arc. If a patient achieves this level of stereoacuity, one is assured that the eyes are aligned orthotropically and that vision is intact in each eye. Random dot stereograms have no monocular depth cues and provide an excellent screening test for strabismus and amblyopia in children.

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  • Many thanks to Lianne Issa for this amazing tutorial. Check out her portraits gallery. Ok so here is my first tutorial, i'm not that good at explaining things but if i can post my Wips (works in progress) of an eye with a brief description this may help you see the way i do things. I hope you will find this usefull..... I am going to attempt to draw the very beautiful eye of Angelina Jolie

    pdf6p moi_tim 02-10-2012 30 4   Download

  • Bài giảng Bệnh mắt Basedow (Hyperthyroid Eye Disease- Basedow’s ophthalmopathy) trình bày về danh pháp và đặc điểm dịch tễ học, cơ chế bệnh sinh; lâm sàng, cận lâm sàng bệnh mắt; phân loại mức độ hoạt động và một số kiến thức khác.

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  • Demonstration of a relative afferent pupil defect (Marcus Gunn pupil) in the left eye, done with the patient fixating upon a distant target. A. With dim background lighting, the pupils are equal and relatively large. B. Shining a flashlight into the right eye evokes equal, strong constriction of both pupils. C. Swinging the flashlight over to the damaged left eye causes dilation of both pupils, although they remain smaller than in A. Swinging the flashlight back over to the healthy right eye would result in symmetric constriction back to the appearance shown in B.

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