However, a different approach which uses only coordinates can be used to calculate the actual deflection angle of two lines in 3D space. This approach will not only give the deflection angle but also provide accurate length of those lines.

Let us suppose three coordinates in space and let X be the angle between these two lines
A(x1,y1,z1)
B(x2,y2,z2)
C(x3,y3,z3)

The vector AB is given by

AB=(x2-x1)i+(y2-y1)j+(z2-z1)k
=(a1)i+(a2)j+(a3)k

Similarly BC is given by

BC=(x3-x2)i+(y3-y2)j+(z3-z2)k

=(b1)i+(b2)j+(b3)k

The dot product of vector is given by AB.BC =AB*BC*CosX

Here AB and BC=length of segment AB and BC respectively and is given by
L1=AB=sqrt(a1^2+a2^2+a3^2)

L2=BC=sqrt(b1^2+b2^2+b3^2)

Thus CosX=AB.BC/(L1*L2)

Total Lent of segment L=L1+L2

A worksheet using this approach can be downloaded here . The sheet also contains VBA codes to visualize the alignment.

We all have ridden a bicycle in some part of our life. If you have done it after a long gap, you may have experienced some pain in the pelvic muscle. After last cycling tour to Nagarkot, I did some analysis to find the stress on the seats of bicycle while cycling. The analysis was done in staad.pro. The analysis file is given below. The analysis is crude and even do not consider pretension force on the spokes.

The result shows that the pain is critical just below the seat where the load is transferred to the frame of bicycle. With mass of 70kg (applied by dividing it to the nodes of seat and the handles) the maximum stress was about 4Mpa. This stress was enough to give pain in the ass!

STAAD SPACE DXF Import of cycle.dxf START JOB INFORMATION ENGINEER DATE 18-Dec-11 JOB NAME analysis of bicycle ENGINEER NAME nirmal END JOB INFORMATION INPUT WIDTH 79 UNIT METER KN JOINT COORDINATES 1 32.6598 28.8503 0; 2 32.4896 29.2262 0; 3 32.3713 29.1453 0; 4 32.2879 29.0288 0; 5 32.2492 28.8909 0; 6 32.2602 28.748 0; 7 32.3193 28.6175 0; 8 32.4194 28.515 0; 9 32.5486 28.4531 0; 10 32.6912 28.439 0; 11 32.83 28.4745 0; 12 32.9483 28.5554 0; 13 33.0318 28.6719 0; 14 33.0704 28.8098 0; 15 33.0595 28.9527 0; 16 33.0004 29.0832 0; 17 32.9002 29.1856 0; 18 32.771 29.2476 0; 19 32.6284 29.2617 0; 20 34.4598 28.8503 0; 21 34.2896 29.2262 0; 22 34.1713 29.1453 0; 23 34.0879 29.0288 0; 24 34.0492 28.8909 0; 25 34.0602 28.748 0; 26 34.1193 28.6175 0; 27 34.2194 28.515 0; 28 34.3486 28.4531 0; 29 34.4912 28.439 0; 30 34.63 28.4745 0; 31 34.7483 28.5554 0; 32 34.8318 28.6719 0; 33 34.8704 28.8098 0; 34 34.8595 28.9527 0; 35 34.8004 29.0832 0; 36 34.7002 29.1856 0; 37 34.571 29.2476 0; 38 34.4284 29.2617 0; 39 32.8993 29.8509 0; 40 33.5598 28.8503 0; 41 33.8437 29.5157 0; 42 32.8181 29.5116 0; 43 33.8437 29.8 0; 44 32.8993 29.8509 0.3; 45 32.8993 29.8509 -0.3; 46 33.9437 29.8 0; 47 33.7437 29.8 0; 48 33.7437 29.8 0.0201266; 49 33.9437 29.8 0.05; 50 33.7437 29.8 -0.02; 51 33.9437 29.8 -0.05; 52 33.913 29.8 -0.0220038; 53 33.9037 29.8 -0.0439999; 54 33.9037 29.8 0; 55 33.7837 29.8 -0.0259996; 56 33.7837 29.8 0; 57 33.8237 29.8 0; 58 33.9213 29.8 -0.0174479; 59 33.9437 29.8 -0.02; 60 33.9437 29.8 -0.03; 61 33.936 29.8 -0.0375694; 62 33.9216 29.8 -0.0354397; 63 33.9437 29.8 -0.04; 64 33.9265 29.8 -0.00939203; 65 33.8637 29.8 -0.0379998; 66 33.8637 29.8 0; 67 33.8237 29.8 -0.0319997; 68 33.7635 29.8 -0.00723009; 69 33.7761 29.8 -0.0130071; 70 33.7463 29.8 -0.0070937; 71 33.753 29.8 -0.0137868; 72 33.7437 29.8 -0.012; 73 33.7649 29.8 -0.0155657; 74 33.7437 29.8 -0.004; 75 33.9437 29.8 -0.01; 76 33.7437 29.8 -0.016; 77 33.7437 29.8 -0.008; 78 33.9174 29.8 0.0226593; 79 33.9037 29.8 0.0440258; 80 33.7837 29.8 0.0261014; 81 33.8237 29.8 0.0320762; 82 33.9316 29.8 0.0271502; 83 33.9437 29.8 0.02; 84 33.9256 29.8 0.0114676; 85 33.9369 29.8 0.0367192; 86 33.924 29.8 0.0358658; 87 33.8637 29.8 0.038051; 88 33.7466 29.8 0.0132581; 89 33.7437 29.8 0.0161013; 90 33.757 29.8 0.0110781; 91 33.7743 29.8 0.0111249; 92 33.7483 29.8 0.00788722; 93 33.7437 29.8 0.00805063; 94 33.7437 29.8 0.0120759; 95 33.9437 29.8 0.01; 96 33.9437 29.8 0.03; 97 33.7437 29.8 0.00402531; 98 33.9437 29.8 0.04; MEMBER INCIDENCES 1 1 2; 2 1 3; 3 1 4; 4 1 5; 5 1 6; 6 1 7; 7 1 8; 8 1 9; 9 1 10; 10 1 11; 11 1 12; 12 1 13; 13 1 14; 14 1 15; 15 1 16; 16 1 17; 17 1 18; 18 1 19; 19 20 21; 20 20 22; 21 20 23; 22 20 24; 23 20 25; 24 20 26; 25 20 27; 26 20 28; 27 20 29; 28 20 30; 29 20 31; 30 20 32; 31 20 33; 32 20 34; 33 20 35; 34 20 36; 35 20 37; 36 20 38; 37 1 42; 38 40 20; 39 20 41; 40 41 42; 41 40 42; 42 40 41; 43 41 43; 44 39 44; 45 39 45; 46 43 66; 47 43 57; 48 48 80; 49 50 55; 50 51 63; 51 50 76; 52 2 19; 53 19 18; 54 18 17; 55 17 16; 56 16 15; 57 15 14; 58 14 13; 59 13 12; 60 12 11; 61 11 10; 62 10 9; 63 9 8; 64 8 7; 65 7 6; 66 6 5; 67 5 4; 68 4 3; 69 3 2; 70 21 38; 71 38 37; 72 37 36; 73 36 35; 74 35 34; 75 34 33; 76 33 32; 77 32 31; 78 31 30; 79 30 29; 80 29 28; 81 28 27; 82 26 25; 83 27 26; 84 25 24; 85 24 23; 86 23 22; 87 22 21; 90 42 39; 91 53 51; 92 54 46; 94 55 67; 95 56 47; 96 57 56; 98 59 75; 99 60 59; 102 63 60; 106 65 53; 108 66 54; 110 67 65; 114 72 77; 129 74 97; 132 75 95; 135 76 72; 138 77 74; 145 79 49; 147 80 81; 148 81 87; 150 83 96; 156 87 79; 161 89 48; 174 93 94; 175 94 89; 179 95 83; 182 96 98; 185 97 93; 190 98 49; ELEMENT INCIDENCES SHELL 93 52 53 54; 97 55 56 57; 100 58 59 60; 101 61 62 58; 103 61 63 51; 104 64 58 54; 105 58 52 54; 107 54 53 65; 109 66 54 65; 111 66 65 67; 112 57 66 67; 113 68 56 69; 115 70 71 72; 116 70 68 71; 117 68 69 73; 118 73 69 55; 119 69 56 55; 120 55 57 67; 121 62 53 52; 122 58 62 52; 123 68 47 56; 124 71 68 73; 125 62 51 53; 126 61 51 62; 127 71 73 50; 128 73 55 50; 130 70 74 47; 131 70 47 68; 133 64 75 59; 134 64 59 58; 136 71 76 72; 137 71 50 76; 139 70 77 74; 140 70 72 77; 141 61 60 63; 142 61 58 60; 143 64 46 75; 144 64 54 46; 146 78 54 79; 149 80 81 57; 151 82 83 84; 152 85 82 86; 153 84 54 78; 154 82 78 86; 155 86 78 79; 157 87 79 54; 158 87 54 66; 159 81 87 66; 160 81 66 57; 162 88 89 48; 163 90 80 91; 164 92 90 47; 165 90 91 47; 166 91 56 47; 167 91 80 56; 168 56 80 57; 169 84 46 54; 170 82 84 78; 171 90 48 80; 172 88 90 92; 173 88 48 90; 176 92 93 94; 177 85 86 49; 178 86 79 49; 180 84 95 46; 181 84 83 95; 183 82 96 83; 184 85 96 82; 186 92 97 93; 187 92 47 97; 188 88 94 89; 189 88 92 94; 191 85 98 96; 192 85 49 98; ELEMENT PROPERTY 93 97 100 101 103 TO 105 107 109 111 TO 113 115 TO 128 130 131 133 - 134 136 137 139 TO 144 146 149 151 TO 155 157 TO 160 162 TO 173 176 - 177 TO 178 180 181 183 184 186 TO 189 191 192 THICKNESS 0.05 DEFINE MATERIAL START ISOTROPIC STEEL E 2.05e+008 POISSON 0.3 DENSITY 76.8195 ALPHA 1.2e-005 DAMP 0.03 ISOTROPIC CONCRETE E 2.17185e+007 POISSON 0.17 DENSITY 23.5616 ALPHA 1e-005 DAMP 0.05 ISOTROPIC ALUMINUM E 6.89476e+007 POISSON 0.33 DENSITY 26.6018 ALPHA 2.3e-005 DAMP 0.03 END DEFINE MATERIAL MEMBER PROPERTY 37 TO 45 90 PRIS ROUND STA 0.04 END 0.04 THI 0.002 1 TO 36 46 TO 51 91 92 94 TO 96 98 99 102 106 108 110 114 129 132 135 - 138 145 147 148 150 156 161 174 175 179 182 185 190 PRIS YD 0.01 52 TO 87 PRIS YD 0.01 ZD 0.05 CONSTANTS MATERIAL STEEL MEMB 37 TO 45 52 TO 87 90 MATERIAL CONCRETE MEMB 1 TO 36 46 TO 51 91 92 94 TO 96 98 99 102 106 - 108 110 114 129 132 135 138 145 147 148 150 156 161 174 175 179 182 - 185 190 MATERIAL ALUMINUM MEMB 93 97 100 101 103 TO 105 107 109 111 TO 113 - 115 TO 128 130 131 133 134 136 137 139 TO 144 146 149 151 TO 155 157 - 158 TO 160 162 TO 173 176 TO 178 180 181 183 184 186 TO 189 191 192 SUPPORTS 10 29 PINNED LOAD 1 LOADTYPE None TITLE weight SELFWEIGHT Y -1 JOINT LOAD 43 TO 98 FY -0.07 PERFORM ANALYSIS PRINT ALL FINISH

print a

You look at the code above and aren’t sure what number gets printed out at the end

Alternative careers

Electrician
Plumber
Architect
Civil engineer
………..”

This is purely under estimated comment.Stupid people like him is creating some stupid softwares without puting his brain on use or knowing what the equation means in real life. And still they think they are really smart.

Lets see where he will not find a civil engineer or an architect..

the house he lives is designed by the architect and enforced by civil engineer .
the water he drinks will come from a soruce far away using system of channels, pipes, crossings..civil engnieer is supposed to get him that water even in draught!
the electriciy which he utilizes comes from the dam built by civil engineer and transmission line errected by civil engineers..
the road and bridges which he uses to go his home and office is built by civil engineers
the airport which he uses to fly his plane is built by civil engineers
the waste he generates in his lifetime is dispossed in secure way by civil engineers
the food he eats gets nutured from the water diverted by a civil engineer.

By copying and pasting the code you can easily be a computer engineer. F*** off. We know how to do our works.
Do you know how computers are used by civil engineer to put stupid people like you in comfort?

They use it to design the nuclear plant.
They use it to make dams and bridges.
They use it to design your gas pipes.
They use it to get answer of those things which you will never understand..
They use it to design the factories where your clothes are woven ..( wont you be shameful!)

I am and will be a civil engineer.

And if still you think you are clearver,

Do you know how high is your street light?
Do you know how many seconds red light glows in zebra crossing?
Do you know why your house do not break even by earthquake?

……
spread love not hate..

1. Using a HEX editor, locate the DPB=… part
2. Change the DPB=… string to DPx=…
3. Open the xls file in Excel
4. Excel discovers an invalid key (DPx) and asks whether you want to continue loading the project (basically ignoring the protection)
5. Open the VBA editor (ALT+F11)
6. Overwrite the password, so change it to something you can remember
7. Save the xls file
8. Close and reopen the document and work your VBA magic!

Solution was found at: http://stackoverflow.com/questions/1026483/is-there-a-way-to-crack-the-password-on-an-excel-vba-project

If you want to remove password from protected sheet then see https://nirmaljoshi.wordpress.com/2011/05/25/breaking-excel-passoword/.

The penstock data are:
Head =115m
Discharge =3.2 m3/s
Length =2400m
The main reason for the burst was the movement of pipe alignment due to landslide.

	The hole in ground made by the brusted pipe.
Coupling for GRP	Hard stone lining in inlet canal

Filed under: Engineering Tagged: Brust, GRP ]]> http://nirmaljoshi.wordpress.com/2011/08/07/grp-pipe-malfunctions/feed/ 5 NRJ http://nirmaljoshi.wordpress.com/2011/07/29/list-of-small-hydropower-project-in-nepal-2011/ http://nirmaljoshi.wordpress.com/2011/07/29/list-of-small-hydropower-project-in-nepal-2011/#comments Fri, 29 Jul 2011 10:19:35 +0000 nirmaljoshi https://nirmaljoshi.wordpress.com/2011/07/29/list-of-small-hydropower-project-in-nepal-2011/ ]]> Here is list of small hydropower projects in Nepal compiled during 2011. The projects includes capacity ranging from ~1 MW to 10MW.Download file here.

PART 1

First you need to register yourdomain.com.np at http://www.mos.com.np.
but before doing that you should do the following:

[Notes: If the website is personal you need to use your name in the domain, otherwise it will be rejected. A sample coverletter for you has been written below the article. You need to submit it with your details at the Mecentile Building, Durbarmarg.]

Go to http://www.freehostia.com/
registeran account for a free username and password
In the Hosted Domains add your domain that you registerd in the mos.com.np site ie mydomain.com.np

Now go to mos.com.np
Register for a domain. Fill the form. In the nameserver field of the form copy the following values
dns1.freehostia.com / IP: 66.40.52.47
dns2.freehostia.com / IP: 66.40.66.152

[note: The ip can be obtained by Run>Cmd>Ping dns1.freehostia.com]

Now you need to submit the necesary document to Mercentile office (at Durbarmarg) and wait until the domain gets activated.

PART 2

In the mean time we will set up our new site and email addreess.

Freehostia provides free incoming email but you cannot send email from here so we will use gmain instead.

To setup email go to http://www.google.com/a/

Register for google apps (free) with your mydomain.com.np

Use Manage Domain>Service settings and activate the Email

In Setting>Email of google apps change URL of web address to http://mail.mydomain.com.np

Now goto freehostia.com
In custom DNS records change MX of mydomain.com.np value to ASPMX.L.GOOGLE.COM (MX stands for mail exchange)

Register new subdomain named mail.mydomain.com from subdomain manager

Again go to ustom DNS records andchange ip number of A record of mail.mydomain.com.np to ghs.google.com

Thats all. You have also set up the email address for youself.

It will take 2-3 days to update all the server in the planet for your email and domains

PART 3

Set up a content management system for your site

Go to freehostia.com

Install Joomla 1.5 listed in Web tools> Elephat free scripts

During the process you will be asked to set up a database. Make a database. Remember the password you provided.

————

Now wait and wait and wait

RUN>CMD>Ping mydomain.com.np each day until you get the reply.
————
visit http://mydomain.com.np to see your website
visit http://mydomain.com.np/administrator to adminster the content of your site (if you have installed joomla 1.5)
visit http://mail.mydomain.com.np to access your email mail@mydomain.com.np (with all cool gmail features)

——

Cover letter

To,
NPccTLD Registration Services
MERCANTILE COMMUNICATIONS PVT. LTD.
P. O. Box 876
Durbarmarg, Kathmandu, NEPAL

Subject: Registration of domain

Dear Sir/ Madam,
I would like to register .np domain name. I have already submitted the .np domain registration online form. I have attached the photocopy of my citizenship with this application.

I will be happy if you register my domain name as soon as possible. Thank you for considering my application.

Domain name: www.mydomain.com.np 

Sincerely,
Mr. xxxx

Files in the archive:

preeti.ttf
NBC101 material specification.pdf
NBC000 requirements for state-of-the art design an introduction.pdf
NBC102 unit weight of materials.pdf
NBC103 occupancy load (imposed load).pdf
NBC104 wind load.pdf
NBC105 seismic design of buildings in nepal.pdf
NBC106 snow load.pdf
NBC107 provisional recommendation on fire safety.pdf
NBC108 site consideration for seismic hazards.pdf
NBC109 masonry unreinforced.pdf
NBC110 plain and reinforced concrete.pdf
NBC111 steel.pdf
NBC112 timber.pdf
NBC113 aluminium.pdf
NBC114 construction safety.pdf
NBC201 mandatory rules of thumb reinforced concrete buildings with masonry infill.pdf
NBC202 mandatory rules of thumb load bearing masonry.pdf
NBC203 guidelines for earthquake resistant building construction low strength masonry.pdf
NBC204 guidelines for earthquake resistant building construction earthen building (eb).pdf
NBC205 mandatory rules of thumb reinforced concrete buildings without masonry infill.pdf
NBC206 architectural design requirements.pdf
NBC207 electrical design requirements for (public buildings).pdf
NBC208 sanitary and plumbing design requirements.pdf

Download this archive. (~12Mb)

Latest verion can be downloded from http://www.dudbc.gov.np/building.php

Intake, gravel trap and settling basin.
Intake consists of a chamber to collect water. A gravel trap is generally provided to exclude coarse sediment to enter the water way. If water has sediments that need to be addressed, then a settling basin is also provided. The inake of GMP is at the right bank of Yamatari river. The water gets frozen in winter season. Settling basin has not been provided in this project as the water qualtiy is good.

Waterways
The waterways consists of canal joining intake and forebay. Depending upon the topography, the canal is in filling or cutting as shown in the figures.

Forebay
Forebay is a water tank to hold water for specific time. The water from forebay is then tranmitted to powerhouse using penstock pipes. The forebay consists of a spillway to divert excess water. This maintains constant head (elevation of water) for the trubines in the powerhouse.

Penstock pipes
Penstock pipes transmitts the flow from forebay to powerhouse. Saddle support and anchor blocks are provided to hold the penstock in the fixed alignment.

Powerhouse and tailrace
The flow from penstock strikes the turbine and generator produces electricity. The flow is then discharged back to original river. The powehouse of GMP is near the southern end of Ghunsa village.