This document discusses container classes in object-oriented programming. It examines tensions between strong typing and reuse in statically typed languages. Three approaches are presented to address this issue: using substitution and downcasting, substitution and overriding, and generics. Iterators and visitors are also discussed as solutions for traversing container elements without exposing internal structures.
Real-Time Non-Intrusive Speech Quality Estimation for VoIPadil raja
This document discusses research on developing a real-time, non-intrusive model for estimating speech quality over VoIP networks. The research aims to assess speech quality at mid-network points by evaluating both transport layer metrics like packet loss and jitter, as well as speech layer metrics using perceptual models. The current status describes capturing transport metrics from RTP/RTCP and implementing a perceptual model on an IXP2400 processor. Future work involves integrating the transport and speech models, testing under various network conditions, and evaluating the model for multiple calls and low bitrate codecs.
The document summarizes research on wireless access and packet processing. It describes an application that uses two ports to bridge and process received packets. Packets are received, moved to memory for processing by microengines, and transmitted. Testing showed the application achieved 100% throughput for packet sizes from 64 to 1518 bytes. Latency increased with packet size and load, while no packet loss occurred.
This document summarizes the course requirements and exams for an A2 Media Studies course. The course consists of two components, each worth 50% of the final grade: 1) an advanced portfolio project involving the promotion of an album, and 2) a critical perspectives exam. The exam has two sections - the first asks students to evaluate their skills development and analyze a past production work, and the second addresses contemporary issues in media regulation.
Modelling the Effect of Packet Loss on Speech Qualityadil raja
The document proposes a new method for modeling the effect of packet loss on speech quality. It summarizes existing packet-based and speech-based approaches before describing a neural network model that takes packet loss parameters like mean loss rate, burst length, and gap length as inputs. The proposed method achieves a correlation of 0.9807 compared to 0.952 and 0.93 for previous methods. Scatter plots and an error plot are provided to analyze the model's performance.
The document outlines a course on software engineering that covers key topics including an introduction, the product and process, managing software projects, conventional engineering methods, object-oriented engineering, and references. The course is organized into 6 sections and each section is broken down into sub-topics to be covered.
Wideband E-Model and the loss, pause and jump impairmentsadil raja
This document discusses simulating VoIP call quality impairment due to packet loss, pauses, and jumps. It presents a model for generating these impairment patterns based on statistical distributions like Weibull and state transition probabilities. The goal is to realistically simulate impairment patterns to analyze call quality using metrics like E-model and conduct listening tests. Future work involves using the wideband E-model and conducting additional analysis and tests by mid-August.
AN ANALYSIS OF THE IMPORTANCE OF CORPORATE REPUTATION IN HIGHER EDUCATION INS...Maz Nyatsambo
This document analyzes the importance of corporate reputation in higher education institutions. It discusses reputation, why institutions build reputation, and key drivers like credibility. It also examines reputation measures used and presents research on Birmingham City University's reputation according to current and former students. The research found that students value institutional reputation and see a good reputation as involving learning/development facilities, industry links, and good graduate prospects.
This document defines common units of measurement for digital memory and storage. It explains that a byte is 8 bits, and larger units like kilobytes and megabytes are multiples of bytes. It describes how memory is addressed in computers and how this has increased from 20 to 32 to 64 bits. It also outlines different types of memory like RAM, ROM, cache and how data is organized and stored on hard disks in sectors and tracks.
The document introduces genetic algorithms, which are inspired by biological evolution. It describes how genetic algorithms use operations like selection, crossover and mutation to evolve solutions to problems in a way that is analogous to natural selection. It also outlines the basic components of a genetic algorithm, including representing solutions, initializing a population, evaluating fitness, and selecting solutions to breed new generations. Finally, it discusses some common applications of genetic algorithms to optimization problems.
10 most profitable automotive accessories for your dealership to sell!Marketing Torq
Would you like to know what automotive accessories are the most profitable to sell? There are plenty of accessories that sell major amount of volume, but the profit margins are smaller.
Here at Marketing Torq, we've compiled a list of the ten most profitable auto accessories to sell so that you can maximize your profits and liven up your S&P department. Learn more at: http://www.marketingtorq.com
This document is an internship project report submitted by Jayesh Darji to BK School of Business Management in partial fulfillment of an MBA program. The report details Darji's summer internship at Parle Products Private Ltd, where they studied accounting and auditing practices. It includes an acknowledgements section, objectives, data collection methods, an executive summary of key findings, an industry overview of the biscuit sector, an overview of Parle Products, descriptions of accounting and auditing processes, and conclusions.
This document discusses container classes in object-oriented programming. It examines tensions between strong typing and reuse in statically typed languages. Three approaches are presented to address this issue: using substitution and downcasting, substitution and overriding, and generics. Iterators and visitors are also discussed as solutions for traversing container elements without exposing internal structures.
Real-Time Non-Intrusive Speech Quality Estimation for VoIPadil raja
This document discusses research on developing a real-time, non-intrusive model for estimating speech quality over VoIP networks. The research aims to assess speech quality at mid-network points by evaluating both transport layer metrics like packet loss and jitter, as well as speech layer metrics using perceptual models. The current status describes capturing transport metrics from RTP/RTCP and implementing a perceptual model on an IXP2400 processor. Future work involves integrating the transport and speech models, testing under various network conditions, and evaluating the model for multiple calls and low bitrate codecs.
The document summarizes research on wireless access and packet processing. It describes an application that uses two ports to bridge and process received packets. Packets are received, moved to memory for processing by microengines, and transmitted. Testing showed the application achieved 100% throughput for packet sizes from 64 to 1518 bytes. Latency increased with packet size and load, while no packet loss occurred.
This document summarizes the course requirements and exams for an A2 Media Studies course. The course consists of two components, each worth 50% of the final grade: 1) an advanced portfolio project involving the promotion of an album, and 2) a critical perspectives exam. The exam has two sections - the first asks students to evaluate their skills development and analyze a past production work, and the second addresses contemporary issues in media regulation.
Modelling the Effect of Packet Loss on Speech Qualityadil raja
The document proposes a new method for modeling the effect of packet loss on speech quality. It summarizes existing packet-based and speech-based approaches before describing a neural network model that takes packet loss parameters like mean loss rate, burst length, and gap length as inputs. The proposed method achieves a correlation of 0.9807 compared to 0.952 and 0.93 for previous methods. Scatter plots and an error plot are provided to analyze the model's performance.
The document outlines a course on software engineering that covers key topics including an introduction, the product and process, managing software projects, conventional engineering methods, object-oriented engineering, and references. The course is organized into 6 sections and each section is broken down into sub-topics to be covered.
Wideband E-Model and the loss, pause and jump impairmentsadil raja
This document discusses simulating VoIP call quality impairment due to packet loss, pauses, and jumps. It presents a model for generating these impairment patterns based on statistical distributions like Weibull and state transition probabilities. The goal is to realistically simulate impairment patterns to analyze call quality using metrics like E-model and conduct listening tests. Future work involves using the wideband E-model and conducting additional analysis and tests by mid-August.
AN ANALYSIS OF THE IMPORTANCE OF CORPORATE REPUTATION IN HIGHER EDUCATION INS...Maz Nyatsambo
This document analyzes the importance of corporate reputation in higher education institutions. It discusses reputation, why institutions build reputation, and key drivers like credibility. It also examines reputation measures used and presents research on Birmingham City University's reputation according to current and former students. The research found that students value institutional reputation and see a good reputation as involving learning/development facilities, industry links, and good graduate prospects.
This document defines common units of measurement for digital memory and storage. It explains that a byte is 8 bits, and larger units like kilobytes and megabytes are multiples of bytes. It describes how memory is addressed in computers and how this has increased from 20 to 32 to 64 bits. It also outlines different types of memory like RAM, ROM, cache and how data is organized and stored on hard disks in sectors and tracks.
The document introduces genetic algorithms, which are inspired by biological evolution. It describes how genetic algorithms use operations like selection, crossover and mutation to evolve solutions to problems in a way that is analogous to natural selection. It also outlines the basic components of a genetic algorithm, including representing solutions, initializing a population, evaluating fitness, and selecting solutions to breed new generations. Finally, it discusses some common applications of genetic algorithms to optimization problems.
10 most profitable automotive accessories for your dealership to sell!Marketing Torq
Would you like to know what automotive accessories are the most profitable to sell? There are plenty of accessories that sell major amount of volume, but the profit margins are smaller.
Here at Marketing Torq, we've compiled a list of the ten most profitable auto accessories to sell so that you can maximize your profits and liven up your S&P department. Learn more at: http://www.marketingtorq.com
This document is an internship project report submitted by Jayesh Darji to BK School of Business Management in partial fulfillment of an MBA program. The report details Darji's summer internship at Parle Products Private Ltd, where they studied accounting and auditing practices. It includes an acknowledgements section, objectives, data collection methods, an executive summary of key findings, an industry overview of the biscuit sector, an overview of Parle Products, descriptions of accounting and auditing processes, and conclusions.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help regulate emotions and stress levels.
This document provides instructions and information for an English proficiency exam. It states that the exam will take place on March 7th from 10:30-12:00. It provides the student's name, seat number, test location and room number. It explains that the exam has two parts and is out of 150 points total. It provides instructions on how to fill in personal information and answers on the answer sheet as well as guidelines for changing answers during the exam. Students are not allowed to leave the testing room early.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help enhance one's emotional well-being and mental clarity.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise stimulates the production of endorphins in the brain which elevate mood and reduce stress levels.
This document provides instructions and information for an English proficiency exam. It states that the exam will take place on March 7th from 10:30-12:00. It provides the student's name, seat number, test location and room number. It explains that the exam has two parts and is out of 150 points total. It provides instructions on how to fill in personal information and answers on the answer sheet using a #2 pencil. It reminds students not to leave the testing room before time is up.
11. รหัสวิชา 72 ความถนัดทางวิทยาศาสตร หนา
วันอาทิตยที่ 8 มีนาคม 2552 เวลา 09.00 - 12.00 น.
11
25. ตารางรหัสพันธุกรรม
U C A G
Phe Ser Tyr Cys U
Phe Ser Tyr Cys C
Leu Ser Stop Stop A
U
Leu Ser Stop Trp G
Leu Pro His Arg U
Leu Pro His Arg C
Leu Pro Gln Arg A
C
Leu Pro Gln Arg G
Ile Thr Asn Ser U
Ile Thr Asn Ser C
Ile Thr Lys Arg A
A
Met Thr Lys Arg G
Val Ala Asp Gly U
Val Ala Asp Gly C
Val Ala Glu Gly A
G
Val Ala Glu Gly G
นิวคลีโอไทดลําดับที่ 2
นิวคลีโอไทดลําดับที่3
นิวคลีโอไทดลําดับที่1
36. รหัสวิชา 72 ความถนัดทางวิทยาศาสตร หนา
วันอาทิตยที่ 8 มีนาคม 2552 เวลา 09.00 - 12.00 น.
36
69. Thyrotropin-releasing hormone มีโครงสรางเปนเพปไทดสายสั้นๆ ดังภาพ
หากฮอรโมนนี้จํานวน 1 โมล เกิดปฏิกิริยาไฮโดรลิซิสอยางสมบูรณดวยสารละลาย
กรด จะไดผลิตภัณฑที่มีโครงสรางเปนกรดอะมิโน ที่แตกตางกันทั้งสิ้นกี่ชนิด
1. 1 ชนิด 2. 2 ชนิด
3. 3 ชนิด 4. 4 ชนิด
70. ถานํากรดอะมิโนสองชนิดคือ ไกลซีน และ อะลานีน ชนิดละ 1 โมล มาตมรวมกันโดย
มีกรดเปนตัวเรงปฏิกิริยา จะไดผลิตภัณฑเฉพาะที่เปนสารประกอบไดเพปไทดทั้งสิ้น
กี่ชนิด
ไกลซีน (Gly) อะลานีน (Ala)
1. 1 ชนิด 2. 2 ชนิด
3. 3 ชนิด 4. 4 ชนิด
O
H
N
N
O
HN
N
NH
O
O
H2N
O
OH
H2N
O
OH
H2N
37. รหัสวิชา 72 ความถนัดทางวิทยาศาสตร หนา
วันอาทิตยที่ 8 มีนาคม 2552 เวลา 09.00 - 12.00 น.
37
71. โครงสรางของเมลามีน และ ฟอรมาลดีไฮดเปนดังนี้
เมลามีน ฟอรมาลดีไฮด
ในอุตสาหกรรมพลาสติกที่นําเมลามีนมาทําปฏิกิริยาควบแนนกับฟอรมาลดีไฮด
จะไดผลิตภัณฑพอลิเมอรที่มีโครงสรางแบบใด
1. เสนตรง
2. ขดเปนวง
3. ขดเปนเกลียว
4. รางแห
N
N
N
NH2
H2N NH2
O
HH
38. รหัสวิชา 72 ความถนัดทางวิทยาศาสตร หนา
วันอาทิตยที่ 8 มีนาคม 2552 เวลา 09.00 - 12.00 น.
38
72. พอลิเมอรขนาดโมเลกุลใกลเคียงกันที่มีโครงสรางในขอใดนาจะมีจุดหลอมเหลว
สูงที่สุด
1.
2.
3.
4.
O
O
O
O n
H
N
N
H
O
O n
n
n
41. รหัสวิชา 72 ความถนัดทางวิทยาศาสตร หนา
วันอาทิตยที่ 8 มีนาคม 2552 เวลา 09.00 - 12.00 น.
41
BA mm >
BA mm >
76. ชายคนหนึ่งปลอยกอนหินจากหนาผาแหงหนึ่ง เมื่อกอนหินกอนแรกตกลงไปเปน
ระยะทาง 2 เมตร เขาก็ปลอยกอนหินอีกกอนหนึ่งที่มีมวลเทากันทันที ถาไมคิดแรง
ตานของอากาศ ขอใดถูกตอง
1. กอนหินทั้งสองกอนอยูหางกัน 2 เมตรตลอดเวลาที่ตก
2. กอนหินทั้งสองกอนอยูหางกันมากขึ้นเรื่อยๆ
3. กอนหินกอนที่สองตกถึงพื้นหลังกอนแรก 0.4 วินาที
4. กอนหินกอนแรกตกถึงพื้นดวยความเร็วที่มากกวากอนที่สอง
77. ออกแรง F
r
ขนานกับพื้นราบลื่นกระทํากับกลอง A และ B ที่วางติดกัน ดังรูป
ขอใดถูกตอง
1. ถา แรงที่กลอง A กระทํากับกลอง B มีขนาดมากกวาแรงที่กลอง B
กระทํากับกลอง A
2. ถา แรงที่กลอง A กระทํากับกลอง B มีขนาดนอยกวาแรงที่กลอง B
กระทํากับกลอง A
3. แรงที่กลอง A กระทํากับกลอง B มีขนาดเทากับแรงที่กลอง B กระทํากับกลอง A
โดยไมขึ้นกับมวลของกลองทั้งสอง
4. แรงลัพธที่กระทํากับกลอง A มีขนาดเทากับแรงลัพธที่กระทํากับกลอง B
A B
F
r
42. รหัสวิชา 72 ความถนัดทางวิทยาศาสตร หนา
วันอาทิตยที่ 8 มีนาคม 2552 เวลา 09.00 - 12.00 น.
42
78. วางกลองใบหนึ่งบนรถกระบะ สัมประสิทธิ์ความเสียดทานสถิตระหวางกลองกับพื้น
กระบะเทากับ 0.45 ความเรงสูงสุดของรถกระบะที่ไมทําใหกลองไถลไปบนพื้นกระบะ
มีคาเทาใด
1. 0.046 m/s2
2. 0.45 m/s2
3. 4.4 m/s2
4. 44 m/s2
79. ชายคนหนึ่งมีมวล 80 กิโลกรัม ขับรถไปตามถนนดวยอัตราเร็วคงที่ 15 เมตรตอวินาที
ถาพื้นถนนมีหลุมที่มีรัศมีความโคงเทากับ 60 เมตร แรงที่เบาะนั่งกระทํากับชายคนนี้
ณ ตําแหนงต่ําสุดของหลุมเปนเทาใด
1. 300 N
2. 484 N
3. 784 N
4. 1084 N
80. ถางานที่ใชเรงวัตถุจากหยุดนิ่งใหมีอัตราเร็ว v เทากับ W
งานที่ตองใชในการเรงวัตถุจากอัตราเร็ว v ไปสูอัตราเร็ว 2v เทากับเทาใด
1. W
2. 2W
3. 3W
4. 4W