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Issue Info: 
  • Year: 

    2023
  • Volume: 

    11
  • Issue: 

    23
  • Pages: 

    175-197
Measures: 
  • Citations: 

    0
  • Views: 

    68
  • Downloads: 

    11
Abstract: 

Process capability measures the uniformity and repeatability of a process with regard to customer requirements and product specifications. Developing control charts for the capability of a process offers a more comprehensive way to monitor the process performance. In this research, a control chart is developed for the process capability of processes that follow LOGISTIC distribution. In this control chart, process yield is monitored based on the process distribution parameters. A PROCEDURE is proposed to enhance the detection power of the control chart. The advantage of the proposed control chart is its ability to simultaneous monitoring of process distribution parameters. The performance of the control chart is evaluated through simulation experiments based on the average run length (ARL) and standard deviation of run length (SDRL) indices. According to simulation results, the proposed control chart can effectively detect out-of-control conditions.

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Issue Info: 
  • Year: 

    2007
  • Volume: 

    17
  • Issue: 

    1 (SUPPLEMENT)
  • Pages: 

    54-60
Measures: 
  • Citations: 

    0
  • Views: 

    2953
  • Downloads: 

    0
Abstract: 

Background: Foot ulceration and lower limb amputation are still common complications of Diabetes mellitus (DM). Diabetic foot problems account for more hospitalization days than any other diabetic problem. The main etiologic factors are diabetic neuropathy and peripheral vascular disease. An easy, simple to use and low cost method for screening of diabetic peripheral neuropathy will be very useful.Methods: From May 2003 to May 2004, all diabetic patients (type 1) referred to endocrine clinic of Namazi Hospital were evaluated for diabetic peripheral neuropathy (DPN), using the bedside scoring PROCEDURE. A score of 3-5 indicated mild, 6-8 moderate, and 9- 10 severe DPN. The perception of vibration, temperature, pinprick and ankle reflex was examined. Tuning fork (128 Hz), neuropen, cold and warm water and reflex hammer were used for evaluation.Findings: In this study we evaluated 80 patients (34 male and 46 female) with type 1 DM, with the age range of 6-31 years (Mean±SD 18.16±5.22 yr). The overall prevalence of DPN was 13.75%: mild in 7.5%, moderate in 5% and severe in 1.25% of the patients. The most common physical finding was the absence of ankle reflex. Patients were divided into 2 groups based on the presence of DPN. The prevalence of DPN was significantly associated with age, duration of DM and BMI (P< 0.05). There was no significant correlation with sex, HbAlc, puberty, parental consanguinity and family history of DM.Conclusions: Bedside scoring PROCEDURE is a simple, low cost and easy method for screening of DPN in patients with type 1 DM in outpatient clinic. Examination of ankle reflex is very important.It is concluded that the diabetic patients need better follow-up and more education.

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Issue Info: 
  • Year: 

    2009
  • Volume: 

    66
  • Issue: 

    10
  • Pages: 

    774-778
Measures: 
  • Citations: 

    0
  • Views: 

    1937
  • Downloads: 

    0
Abstract: 

Background: Chronic pancreatitis is a progressive fibrosis of the pancreas that leads to loss of endocrine and exocrine function of pancreas. The most common symptom is intractable pain. Which adversely effects quality of life, remains the most common indication for surgery in patients with chronic pancreatitis.Case report: Three patients underwent operations for chronic pancreatitis at the Ghaem hospital, Mashhad University of Medical Sciences Mashhad, Iran. Indication for operation in all cases was intractable abdominal pain. In all of the three patients complete relief of symptoms was obtained. There was no morbidity and mortality. In one patient exocrine function of pancreas and malabsorpation resolved after surgery. Conclusions: Although chronic pancreatitis is uncommon, but in persistent abdominal pain surgery should be considered. Surgery for patients with chronic pancreatitis can be performed safely with minimal morbidity and effective in control of pain and malabsorption.

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Journal: 

MODIRIAT-E-FARDA

Issue Info: 
  • Year: 

    2007
  • Volume: 

    5
  • Issue: 

    17
  • Pages: 

    71-81
Measures: 
  • Citations: 

    0
  • Views: 

    1264
  • Downloads: 

    0
Abstract: 

One of the fundamental points in every research is considering history, fields& evolution of the subject which is known as literature review. Thus in order to study LOGISTICs it is essential to review conceptual& historical evolution surveys, LOGISTIC theories& concepts. Furthermore, a suitable perspective& approach should be acquired.Studying books, articles & researches demonstrates different paradigms have been developed in LOGISTIC field. There for, this paper attempts to review serous LOGISTIC paradigms. At the end, integneted LOGISTIC paradigm is presented for future researches.

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Author(s): 

HASHEMI S.M. |

Issue Info: 
  • Year: 

    2002
  • Volume: 

    19
  • Issue: 

    63-64
  • Pages: 

    31-35
Measures: 
  • Citations: 

    0
  • Views: 

    2641
  • Downloads: 

    0
Keywords: 
Abstract: 

Benign paroxysmal positional vertigo (BPPV) is a common, self-limiting condition. The purpose of this study was to comare the efficacy of canalith repositioning PROCEDURE (CRP) and dimenhydrinate in the treatment of BPPV.In this prospective randomised unblinded controlled clinical trial 173 patients (45 men and 128 women) with a clinical diagnosis of BPPV (based on a positive history and Dix- Hallpike maneuver ) were entered into this clinical trial The mean duration of the symptoms was 6 month (range 1-120 months) and the mean age of the patients was 44. 27 years. The patients were randomly allocated to undrgo treatment with either dimenhydrinate, 50mg/tds (n=60), or CRP via Epley's maneuver (n=53), or placebo (n=60). Weekly follow up was done for 3 months to evaluate symptomatic improvement. Accrding to the resulte of this study 92-5% of the patients in the CPR group were symptom free while all of the patients receving dimenhydrinate or placebo had symptoms on followup (P<0.0001). At 3 months 98% of the patients in the CRP group and 17% of the patients in the dimenhydrinate group were satisfied with their respective treatments (P<0.0001). We conclude from our study CRP is significantly superior to dimenhydrinate in the treatment of BPPV.

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Journal: 

محیط شناسی

Issue Info: 
  • Year: 

    0
  • Volume: 

    38
  • Issue: 

    64
  • Pages: 

    79-92
Measures: 
  • Citations: 

    1
  • Views: 

    989
  • Downloads: 

    0
Abstract: 

آسیب پذیری طبیعی آبخوان را می توان امکان رسیدن آلاینده به آب زیرزمینی و انتشار در آن پس از آلوده شدن سطح زمین تعریف کرد. این ویژگی، خصوصیتی نسبی، بدون بعد و غیر قابل اندازه گیری بوده و نه ففط به ویژگی های آبخوان بلکه به خصوصیات زمین شناسی و هیدرولوژی منطقه نیز بستگی دارد. در زمینه بررسی آسیب پذیری آب زیرزمینی روشهای مختلفی ابداع شده اند که در این میان، روش شاخص و بویژه DRASTIC به دلیل سهولت اجرا جزء پراستفاده ترین روشها هستند. در روش DRASTIC هر مشخصه ای را که به طور بالقوه بر احتمال آلودگی تاثیرگذار باشد در یک مقیاس طبقه بندی کرده و پس از اعمال ضرایب مشخصه ها، نمره ای جهت ارزیابی آسیب پذیری ارائه می کند. نکته قابل توجه در این روش سلیقه ای بودن رتبه بندی و وزن دهی مشخصه هاست و می تواند سبب کاهش کیفیت نتایج شود. برای بهبود و اصلاح مدل DRASTIC پیشنهادهای زیادی را محققان ارائه داده اند. اکثر این محققان حذف مشخصه های کم اهمیت و یا اضافه کردن مشخصه های موثر، اصلاح ضرایب مدل و رتبه بندی مشخصه ها را پیشنهاد کرده اند.این تحقیق به منظور برطرف کردن ایرادهای ذکر شده و انتخاب مدل مناسب برای ارزیابی آسیب پذیری آبخوان به بررسی و مقایسه سه روش ترکیبی رگرسیون لجستیک، DRASTIC اصلاح شده و AHP-DRASTIC پرداخته و پس از جمع آوری مشخصه های ورودی، آسیب پذیری بر اساس مدل های مذکور محاسبه شد. در پایان به منظور انتخاب مدل مناسب از محاسبه ضریب همبستگی اسپیرمن بین غلظت نیترات و کلاس های آسیب پذیری استفاده شد. نتایج مبین دقت بالای روش AHP-DRASTIC نسبت به روشهای ترکیبی مطالعه شده در این تحقیق بود.

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Issue Info: 
  • Year: 

    2021
  • Volume: 

    2
  • Issue: 

    1
  • Pages: 

    101-120
Measures: 
  • Citations: 

    0
  • Views: 

    66
  • Downloads: 

    10
Abstract: 

We develop a generalized distribution, namely, exponentiated half LOGISTIC log-LOGISTIC Weibull distribution. Several structural properties of the distribution including expansion of density, distribution of order statistics, Ré, nyi entropy, moments, probability weighted moments, quantile function, generating function, and maximum likelihood estimates were derived. A simulation study to examine the consistency of the maximum likelihood estimates was conducted. Finally, real data examples are presented to illustrate the applicability and usefulness of the proposed model.

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Author(s): 

MALEKI M. |

Journal: 

DIDGAH

Issue Info: 
  • Year: 

    2013
  • Volume: 

    -
  • Issue: 

    -
  • Pages: 

    40-72
Measures: 
  • Citations: 

    0
  • Views: 

    1210
  • Downloads: 

    0
Keywords: 
Abstract: 

While it is very easy to evaluate different factors of the port development in view of construction and management, supporting elements of the port are adherent to variables which are out of the control out of port authorities; therefore, this paper tries to recognize these elements, compare different port development models, select the best LOGISTIC and development model, and investigate the priority of creating some zones as developed areas in the regions separated from the ports which are capable of presenting advanced LOGISTIC services with the aim of easing movements and increase satisfaction of customers in long-term and short-term. Port development to a the large extent depends on the port location and infrastructures like authorized land, local and regional facilities, industrial centers, geographical situation, and environment play greater role than other indexes. The first reason for selecting Bandar-Anzali is its priority for the development of LOGISTIC activity zone (LAZ) and then the development of dry port (DR) and finally the LOGISTIC park (LP).

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Issue Info: 
  • Year: 

    2015
  • Volume: 

    1
  • Issue: 

    1
  • Pages: 

    46-55
Measures: 
  • Citations: 

    0
  • Views: 

    1232
  • Downloads: 

    0
Abstract: 

Given that different factors in terms of port development and port management too easily review, but factors that support the is subject to variables outside the scope of the port authority. Term and long term objectives of this article are offer. The development of any port in a situation in which the related infrastructure such as land and infrastructure, local and regional facilities, industrial facilities, geographical location, environment a higher priority than other factors involved in the development of port priority and preferred choice for port The development of LOGISTICs activities in the Port LOGISTICs Park is dry.

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