ENGINE PERFORMANCE VALIDATION OF THE OPTIMAL DESIGN OF EXPERIMENT VALVETRAIN PARAMETERS

Early stage of engine valvetrain noise improvement involves the implementation of Design of Experiment (DOE) specifically the Taguchi methodology to identify the optimum valvetrain parameters which resulted in significant noise improvement. The parameters are consist of seven controlled factors such as cylinder head tappet bore diameter, mechanical tappet diameter, valve spring load, camshaft exhaust and intake waviness together with tappet exhaust and intake clearance. The confirmation run which was previously completed yields the valvetrain noise level at 67.07db SPL by 1 meter distance in completed vehicle during idling condition. In order to satisfy the final quality of the optimal valvetrain, a test is carried out to validate the performance curve on a dynamometer according to benchmark specification. The objective of the test is to validate the optimal valvetrain based on the experimental result which minimum manufacturing target shall be achieved to indicate that the engine is operated within its intended design. The performance test was conducted at the manufacturing plant on an eddy current dynamometer which runs for 11 hours. As results, the performance are within the standard with approximate increased by 6.9% as compared with baseline valvetrain and confirmed by several follow-up tests made on the improved valvetrain. In order to verify and address the main engine output of the optimal valvetrain, brake specific fuel consumption (BSFC) and emissions test results are then presented at the end of this paper.

Download Full-text

Cochlear Implantation in the Elderly: Results and Quality-of-Life Assessment

Annals of Otology Rhinology & Laryngology ◽

10.1177/000348940211101005 ◽

2002 ◽

Vol 111 (10) ◽

pp. 890-895 ◽

Cited By ~ 42

Author(s):

Hamid R. Djalilian ◽

Sharon L. Smith ◽

Timothy A. King ◽

Samuel C. Levine

Keyword(s):

Quality Of Life ◽

Complication Rate ◽

Cochlear Implantation ◽

Chart Review ◽

Retrospective Chart Review ◽

The Elderly ◽

Life Assessment ◽

Test Results

To assess the efficacy, quality of life, and complication rate of cochlear implantation in patients over 60 years of age, we performed a retrospective chart review of 31 cochlear implant patients more than 60 years old at the time of surgery (mean, 70 years; range, 62 to 86 years). All patients had improvement in their audiological test results after operation. Twenty-eight patients (93%) are regular implant users at a median follow-up of 12 months. Major complications occurred in 2 patients (6%). We conclude that cochlear implantation in the elderly population has excellent results, with a complication rate similar to that in patients less than 60 years old, and yields an improved quality of life.

Download Full-text

Multiple Predictors of Health-Related Quality of Life in Early Stage Breast Cancer. Data from a Year Follow-up Study Compared with the General Population

Quality of Life Research ◽

10.1007/s11136-005-4344-z ◽

2005 ◽

Vol 14 (8) ◽

pp. 1813-1823 ◽

Cited By ~ 110

Author(s):

Inger Schou ◽

Øivind Ekeberg ◽

Leif Sandvik ◽

Marianne J. Hjermstad ◽

Cornelia M. Ruland

Keyword(s):

Breast Cancer ◽

Early Stage ◽

Health Related Quality ◽

Breast Cancer Data ◽

Cancer Data ◽

Follow Up Study ◽

Related Quality ◽

Health Related

Download Full-text

Pilot of a novel theoretically derived intervention for cancer-related anxiety with patients with advanced or recurred disease

Behavioural and Cognitive Psychotherapy ◽

10.1017/s1352465820000697 ◽

2020 ◽

pp. 1-7

Author(s):

Leah Curran ◽

Louise Sharpe ◽

Phyllis Butow

Keyword(s):

Quality Of Life ◽

Early Stage ◽

Retention Rates ◽

Face Validity ◽

Post Intervention ◽

Early Stage Disease ◽

Fear Of Progression ◽

Traumatic Symptoms

Abstract Background: Treatments for cancer-related anxiety show modest benefits, but most have been trialled in patients with early stage disease or patients who are currently disease free. However, many patients with cancer have incurable disease, or their disease is slowly progressing or likely to recur. Treating anxiety in the context of realistic threat and ongoing uncertainty is particularly challenging. Based on a theoretical model of cancer-related anxiety, we developed a transdiagnostic intervention for patients with advanced or recurred disease who are experiencing clinically significant anxieties. The intervention was a novel integration of traditional and contemporary CBT. Aims: To evaluate the feasibility, acceptability and preliminary efficacy of the intervention in a pilot with patients with advanced or recurred cancer. Method: Twelve patients with advanced or recurred cancer, who were experiencing anxiety, participated. Feasibility and acceptability were assessed with participant’s ratings and adherence and retention rates. Psychological outcomes (anxiety, traumatic symptoms, fear of progression, depression, death anxiety and quality of life) were assessed pre-intervention, post-intervention and at 2-month follow-up. Results: Eleven of the 12 participants completed at least five therapy sessions of whom eight completed all nine sessions. Participants rated the intervention as having excellent face validity. Post-intervention, statistically significant improvements were demonstrated for anxiety, traumatic symptoms, fear of progression, depression and quality of life. These improvements were maintained at follow-up for anxiety, traumatic symptoms and depression. Conclusions: This pilot provides preliminary evidence for the feasibility, acceptability and effectiveness of the novel intervention for cancer-related anxiety in the context of advanced disease.

Download Full-text

False Covid-19 Test Results – Could We Do Things Better? A Personal Opinion

Asian Journal of Pharmacy Nursing and Medical Sciences ◽

10.24203/ajpnms.v8i5.6349 ◽

2020 ◽

Vol 8 (5) ◽

Author(s):

Suzanne Lisbeth Ekelund

Keyword(s):

False Positive ◽

False Negative ◽

Test Results ◽

Negative Results ◽

False Negative Results ◽

Personal Opinion ◽

Potential Problems

This paper describes the problems with false covid-19 test results, both false positive and false negative results. The problems are related to the quality of tests, test sampling and the currently limited follow-up procedures. A test and follow-up strategy that could decrease the potential problems is suggested.

Download Full-text

Fanuc CNC machine damage analysis using the PDCA cycle and Kaizen implementation effort in increasing skill up operator performance in PT YPMI

Independent Journal of Management & Production ◽

10.14807/ijmp.v10i1.590 ◽

2019 ◽

Vol 10 (1) ◽

pp. 259

Author(s):

Muhammad Ihsan ◽

Rofiatul Hasanah ◽

Humiras Hardi Purba

Keyword(s):

Engine Performance ◽

Causal Analysis ◽

Damage Analysis ◽

Cnc Machine ◽

Implementation Effort ◽

Pdca Cycle ◽

Engine Failure ◽

Diagram Analysis

This study aimed to analyze the damage to the machine, look for the biggest trouble factor happen and the most important is the effect of the application of the concept of kaizen to skill up the performance of operators in CW machining maintenance division. In the analysis and handling of an engine failure, the authors use PDCA cycle (Plan, Do, Check, Action) and the application of kaizen to analyze it. From finding the highest cause of trouble that will be made the theme of improvement by collecting data on the check sheet engine trouble and Pareto diagram, analysis of existing conditions using 5W2H, causal analysis the occurrence of engine trouble using the fishbone chart, using the concept of kaizen, evaluation of the results, up to standardization and follow-up. From the analysis of damage to the machine and application FANUC machine kaizen concept, showed a decrease in engine trouble and the increase in skill up performance operator significantly, which is certainly very good impact in terms of engine performance. Of course the result is also impact both on the quality of the product that will be used by the customer

Download Full-text

Inner Prepuce Preserving ‘Bird-Winged Coronal-Collar Skin ReArrangement’ Modification of Tip Urethroplasty

10.47363/jdcrs/2020(1)105 ◽

2020 ◽

pp. 1-4

Author(s):

Prabudh Goel ◽

◽

Jile Dar Rawat ◽

Piyush Kumar ◽

◽

...

Keyword(s):

Ventral Surface ◽

Control Group ◽

Test Results ◽

Penile Shaft ◽

Modified Technique ◽

Exact Test ◽

Tubularized Incised Plate ◽

Fischer Exact Test

Objective: To describe the ‘Bird-Winged Coronal-Collar Skin re-arrangement modification’ of the Tubularized Incised Plate (TIP) urethroplasty to preserve the inner preputial skin on the ventral surface of the penile shaft. Material and Method: Study Group: Prospective review of the results of a single surgeon with Bird-Winged Coronal-Collar skin re-arrangement modification of TIP urethroplasty (n=111; mean age 4.9 years) of distal (n=76) and mid-penile (n-35) hypospadias (mean follow-up 37 months). Control Group: Retrospective review of a single surgeon’s results of distal and mid-penile hypospadias repair with standard TIP urethroplasty (2007-11). Outcome parameters (to compare non-inferiority of the modified technique): Urethro-cutaneous fistula (UCF) at voiding trial and follow-up at 3 months, wound infection, complete dehiscence, local edema, meatal stenosis and quality of urinary stream. Statistical analysis was done with the Fischer Exact Test. Results: With this technique, the authors could provide an inner preputial cover on the ventral/ ventro-lateral aspects of distal penile shaft in all but one patient (complete dehiscence). The results of ‘bird-winged coronal-collar skin re-arrangement’ modification were not-inferior/ comparable to those of standard TIP urethroplasty. Conclusions: The modification is technically feasible and reproducible and the overall results of urethroplasty were not inferior to the standard TIPS procedure.

Download Full-text

RANCANG BANGUN MESIN POMPA AIR DENGAN SISTEM RECHARGING

Jurnal Pendidikan Teknik Mesin Undiksha ◽

10.23887/jjtm.v5i2.10872 ◽

2017 ◽

Vol 5 (2) ◽

Author(s):

Komang Lingga Yana ◽

Kadek Rihendra Dantes ◽

Nyoman Arya Wigraha

Keyword(s):

Energy Efficient ◽

Performance Test ◽

Engine Performance ◽

Environmentally Friendly ◽

Functional Approach ◽

Energy Crisis ◽

Test Results ◽

Water Pump ◽

Technical Data ◽

Observation Method

ABSTRAK Pengembangan mesin pompa air dengan sistem recharging, bertujuan untuk mebantu maslah pendistribusian air pada daerah yang mengalami krisis energi. Mesin pompa air dengan sistem recharging ini mampu beroprasi dengan sumber daya dari baterai sehingga sangat hemat energi, ramah lingkungan dan mudah dibawa kemana saja karena dimensinya tidak terlalu besar. Penelitian ini menggunakan pendekatan fungsional dan pendekatan structural, dengan metode observasi,dokumentasi dan prototype. Data teknis mesin yang dibuat adalah, panjang 50 cm, lebar 28 cm, tinggi 35 cm, mesin berpenggerak motor dc 12 volt 2500 Rpm, transmisi 1:1. Hasil pengujian kinerja mesin didapatkan hasil sebagai berikut, tegangan yang dihasilkan 14 volt, arus yang dihasilkan 8 ampere, kapasitas air yang mampu dihisap 136,2 liter dengan pengoprasian mesin selama satu jam dan tanpa terjadi kerusakan komponen pada mesin pompa air dengan sistem recharging. Keberhasilan penelitian ini dapat menekan biaya oprasional untuk pendistribusian air pada daerah yang mengalami krisis energi, serta dapat mengurangi pencemaran lingkungan karena pengoprasiannya tidak menggunakan BBM dan listrik PLN. Kata Kunci : Kata Kunci : Kinerja, Mesin Pompa Air Dengan Sistem Recharging, Ramah Lingkungan Development of water pump machine with recharging system, aims to help the distribution of water in areas experiencing energy crises. Water pump machine with recharging system is able to operate with the resources of the battery so it is very energy efficient, environmentally friendly and easy to carry anywhere because the dimensions are not too large. This research uses functional approach and structural approach, with observation method, documentation and prototype. Engine technical data made is, length 50 cm, width 28 cm, height 35 cm, engine motor dc 12 volt 2500 Rpm, transmission 1: 1. Engine performance test results obtained as follows, the resulting voltage 14 volts, the resulting current 8 ampere, the capacity of water that can be sucked 136.2 liters with operating machine for one hour and without damage to the component on the water pump machine with recharging system. The success of this research can reduce the oprasional cost for the distribution of water in areas experiencing energy crisis, and can reduce environmental pollution because the operation does not use fuel and electricity.keyword : Keywords: Performance, Water Pump Machine With Recharging System, Environmentally Friendly

Download Full-text

A Novel Digital Patient-Reported Outcome Platform for Head and Neck Oncology Patients–-A Pilot Study

Clinical Medicine Insights Ear Nose and Throat ◽

10.4137/cment.s40219 ◽

2016 ◽

Vol 9 ◽

pp. CMENT.S40219 ◽

Cited By ~ 9

Author(s):

Maria K. Peltola ◽

Joel S. Lehikoinen ◽

Lauri T. Sippola ◽

Kauko Saarilahti ◽

Antti A. Mäkitie

Keyword(s):

Quality Of Life ◽

Pilot Study ◽

Side Effects ◽

Head And Neck ◽

Cancer Patients ◽

Early Stage ◽

Patient Reported Outcome ◽

Patient Reported

Introduction The patient's role in toxicity reporting is increasingly acknowledged. There is also a need for developing modern communication methods between the patient and the medical personnel. Furthermore, the increasing number of head and neck cancer (HNC) patients is reflected in the volume of treatment follow-up visits, which remains a challenge for the health care. Electronic patient-reported outcome (ePRO) measures may provide a cost-efficient way to organize follow-up for cancer patients. Materials and Methods We tested a novel ePRO application called Kaiku®, which enables real-time, online collection of patient-reported outcomes, such as side effects caused by treatment and quality of life. We conducted a pilot study to assess the suitability of Kaiku® for HNC patients at the Department of Oncology, Helsinki University Hospital, Helsinki, Finland. Patients used Kaiku® during and one month after radiotherapy to report treatment-related side effects and quality of life. Two physicians and a nurse performed the practical electronic communication part of the study. Results Five of the nine patients agreed to participate in the study: three of them had local early-stage larynx cancer (T2N0, T1aN0, and T2N0) and the remaining two patients had early-stage base of tongue cancer (T2N0 and T1N2b). The degree of side effects reported by the patients via Kaiku® ranged from mild to life threatening. The number of outcome data points on patients' progress was significantly increased, which resulted in a better follow-up and improved communication between the patient and the care team. Conclusions Kaiku® seems to be a suitable tool to monitor side effects and quality of life during and after radiotherapy among HNC patients. Kaiku® and similar tools could be useful in organizing a cost-effective follow-up process for HNC patients. We recommend conducting a larger study to further assess the impact of an ePRO solution in routine clinical practice. • ePRO solutions may aid in the follow-up for cancer patients. • They seem suitable to monitor, for example, side effects and quality of life. • These systems ensure fast patient-driven reporting.

Download Full-text