Laptop - Science topic

I'm trying to run transistor IV measurement, especially Vg sweep. I've been successful in programming other equipments such as Agilent 4156c, Keithley 2400 sourcemeter, etc, so now I'm trying to program Agilent B1500A.

I connected my laptop with B1500A using GPIB-USB-HS, and I installed all drivers needed. I confirmed that B1500 responsed IDN command using NI-VISA Test Panel.

Moreover, I found this website that could help me program B1500A with python in my laptop.

According to this website, I used the code as below and finally I tried to run this, and the error 'VisaIOError: VI_ERROR_TMO (-1073807339): Timeout expired before operation completed.' occured in ''# set data output format (required!)

b1500.data_format(21, mode=1) #call after SMUs are initialized to get names for the channels''.

However, even without the line above,

''# choose measurement mode

b1500.meas_mode('STAIRCASE_SWEEP', *b1500.smu_references) #order in smu_references determines order of measurement'' also results the same error.

This error might caused by the former line, and does anybody know the solutions for this?

I'd really appreciate it if anybody could help me.

Thank you.

-----------------------------------------------------------------------------------------------

import pyvisa

import matplotlib.pyplot as plt

from pymeasure.instruments.agilent import AgilentB1500

# Define your instrument's VISA resource string

instrument_visa_address = "GPIB0::17::INSTR"

# Initialize PyVISA resource manager

rm = pyvisa.ResourceManager()

# Open a connection to the instrument

try:

instrument = rm.open_resource(instrument_visa_address, timeout=100000)

print(f"Connected to instrument: {instrument.query('*IDN?')}")

except pyvisa.VisaIOError as e:

print(f"Failed to connect to instrument: {e}")

exit()

# Initialize Agilent B1500A instrument

b1500 = AgilentB1500(instrument)

# explicitly define r/w terminations; set sufficiently large timeout in milliseconds or None.

b1500=AgilentB1500(instrument_visa_address)

# query SMU config from instrument and initialize all SMU instances

b1500.initialize_all_smus()

# set data output format (required!)

b1500.data_format(21, mode=1) #call after SMUs are initialized to get names for the channels

# choose measurement mode

b1500.meas_mode('STAIRCASE_SWEEP', *b1500.smu_references) #order in smu_references determines order of measurement

# settings for individual SMUs

for smu in b1500.smu_references:

smu.enable() #enable SMU

smu.adc_type = 'HRADC' #set ADC to high-resoultion ADC

smu.meas_range_current = '10uA'

smu.meas_op_mode = 'COMPLIANCE_SIDE' # other choices: Current, Voltage, FORCE_SIDE, COMPLIANCE_AND_FORCE_SIDE

# General Instrument Settings

# b1500.adc_averaging = 1

# b1500.adc_auto_zero = True

b1500.adc_setup('HRADC','AUTO',6)

#b1500.adc_setup('HRADC','PLC',1)

#Sweep Settings

b1500.sweep_timing(0,5,step_delay=0.1) #hold,delay

b1500.sweep_auto_abort(False,post='STOP') #disable auto abort, set post measurement output condition to stop value of sweep

# Sweep Source

nop = 11

Vg_start = -0.5

Vg_stop = 2.0

Vg_steps = 20

Vds_values = [0.0, 0.2, 0.4, 0.6, 0.8, 1.0, 1.2, 1.4, 1.6, 1.8, 2.0]

Vg_values = []

Ids_values = []

for Vg in np.linspace(Vg_start, Vg_stop, Vg_steps):

b1500.smu3.ramp_source('VOLTAGE','Auto Ranging',Vg, stepsize=0.1, pause=20e-3)

#type, mode, range, start, stop, steps, compliance

for Vds in Vds_values:

b1500.smu4.ramp_source('VOLTAGE','Auto Ranging',Vds, stepsize=0.1, pause=20e-3) #type, mode, range, start, stop, steps, compliance

#Start Measurement

b1500.check_errors()

b1500.clear_buffer()

b1500.clear_timer()

b1500.send_trigger()

# read measurement data all at once

b1500.check_idle() #wait until measurement is finished

data = b1500.read_data(2*nop) #Factor 2 because of double sweep

# Append gate voltage and drain current values to lists

Vg_values.append(Vg)

Ids_values.append(data[0][3])

# Plot Vg-Ids graph

plt.figure(figsize=(8, 6))

plt.plot(Vg_values, Ids_values, marker='o', linestyle='-')

plt.xlabel('Gate Voltage (V)')

plt.ylabel('Drain Current (A)')

plt.title('Vg-Ids Characteristics')

plt.grid(True)

plt.show()

'''

#alternatively: read measurement data live

meas = []

for i in range(nop*2):

read_data = b1500.read_channels(4+1) # 4 measurement channels, 1 sweep source (returned due to mode=1 of data_format)

# process live data for plotting etc.

# data format for every channel (status code, channel name e.g. 'SMU1', data name e.g 'Current Measurement (A)', value)

meas.append(read_data)

'''

#sweep constant sources back to 0V

b1500.smu3.ramp_source('VOLTAGE','Auto Ranging',0,stepsize=0.1,pause=20e-3)

b1500.smu4.ramp_source('VOLTAGE','Auto Ranging',0,stepsize=0.1,pause=20e-3)

-----------------------------------------------------------------------------------------------

When I load .pcr file into Fullprof. It is always showing Re-load PCR file.

I have loaded all the values correctly, but it showing the error Re-load PCR file.

The software is also slow in windows 10 latest version 2021.

I am using latest version of Fullprof.

It is working in windows 7, but not in my new Laptop.

Pease help me....

Molecular Organic Framework, Laptop , Prototyping

Hey everyone!

I can't run any calculations on Gaussian 03 and 09. It stopped when running the l302.exe module on my new computer.

Processor: 13th Gen Intel(R) Core(TM) i9-13900HX 2.20 GHz

RAM 32.0 GB

On other computers, it runs fine with the same software.

Thank you very much!!

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MIPS USB Cameras provide a quick and easy means of displaying and capturing high-quality video and images on any USB 2.0-equipped desktop or laptop computer running a supported Microsoft® OS.

please send me.

thanks

Karthick

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Hello everyone,

Below is the error i obtained on the log file as Gaussian output.

"

Symmetrizing basis deriv contribution to polar:

IMax=3 JMax=2 DiffMx= 0.00D+00

G2DrvN: will do 41 centers at a time, making 2 passes doing MaxLOS=1.

Calling FoFCou, ICntrl= 3107 FMM=T I1Cent= 0 AccDes= 0.00D+00.

Calling FoFCou, ICntrl= 3107 FMM=T I1Cent= 0 AccDes= 0.00D+00.

FoFDir/FoFCou used for L=0 through L=1.

End of G2Drv Frequency-dependent properties file 721 does not exist.

End of G2Drv Frequency-dependent properties file 722 does not exist.

Internal input file was deleted!

Error termination via Lnk1e at Tue Dec 18 10:01:22 2018.

Error: segmentation violation

rax 0000000000000000, rbx 00000000011b1aa8, rcx ffffffffffffffff

rdx 00000000000066cd, rsp 00007ffca4542598, rbp 00007ffca45425f0

rsi 000000000000000b, rdi 00000000000066cd, r8 00002ae9f0a59180

r9 0000000000000000, r10 00007ffca4542320, r11 0000000000000202

r12 00007ffca4548a40, r13 00007ffca4548a40, r14 0000000000000000

r15 00002ae9f0a5a010

--- traceback not available "

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These legacy private networks were suitable for connecting laptops to the Internet and for other limited industrial IoT (IIoT) use cases. However, the coverage and security limitations of these networks, their incompatibility with public cellular networks, as well as their high costs of ongoing management have made it difficult for organizations to use these networks for many IIoT applications. How to reconcile the two? Any related papers? Thank you in advance! To see more: https://www.sierrawireless.com/iot-blog/what-are-private-lte-networks/

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I need it to program an FPGA board.

I did all the steps as declared in the attached picture

1- Add file

2- Add a device,

but the start button in the programmer window is not active.

I think that was because I didn't have a license for this software.??

Please, could anyone who used this software help me?

Or give any other solution.

Thank you for your help.

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Good day everyone,

How long does it takes to run the analysis using SPH?

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Thank you.

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so should i change my psuedo path for that and if yes then how can i change my path for programme?

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Thank you

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I am working on real-time video captioning using deep neural network, and I want to buy a laptop (not desktop) to execute my work and I need to know the minimum hardware specifications required because the pc with GPU is very expensive as the GPU is the key point.

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core i7 / 8th gen.

RAM 16 GB

SSD hard 256 GB

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thanks

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Dear researchers,

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Hi Friends,

I'm using AutoDockTools in MGLtools1.57 on an Ubuntu20.04 workstation

But every time I try "File--Read Molecule"

to read any .pdb file from RSCB PDB or saved from Pymol, or the coverted .pdbqt file

it reports errors like:

Python 2.7.3 (default, Mar 28 2014, 14:28:59)

[GCC 4.6.3] on linux2

Type "copyright", "credits" or "license()" for more information.

== No Subprocess ==

>>> {'gui': None, 'cmd': <Pmv.selectionCommands.MVSelectCommand instance at 0x47deb90>, 'name': 'select'}

{'gui': None, 'cmd': <Pmv.selectionCommands.MVDeSelectCommand instance at 0x47e9098>, 'name': 'deselect'}

{'gui': <ViewerFramework.VFCommand.CommandGUI instance at 0x47de5f0>, 'cmd': <Pmv.selectionCommands.MVClearSelection instance at 0x47e9290>, 'name': 'clearSelection'}

{'gui': None, 'cmd': <Pmv.selectionCommands.MVExpandSelection instance at 0x47e94d0>, 'name': 'expandSelection'}

{'gui': None, 'cmd': <Pmv.selectionCommands.MVSelectAround instance at 0x47e9680>, 'name': 'selectAround'}

{'gui': <ViewerFramework.VFCommand.CommandGUI instance at 0x47de680>, 'cmd': <Pmv.selectionCommands.MVSaveSetCommand instance at 0x47e9830>, 'name': 'saveSet'}

{'gui': None, 'cmd': <Pmv.selectionCommands.MVCreateSetIfNeeded instance at 0x47e9998>, 'name': 'createSetIfNeeded'}

{'gui': <ViewerFramework.VFCommand.CommandGUI instance at 0x47dea28>, 'cmd': <Pmv.selectionCommands.MVInvertSelection instance at 0x47e9b48>, 'name': 'invertSelection'}

{'gui': <ViewerFramework.VFCommand.CommandGUI instance at 0x47de7a0>, 'cmd': <Pmv.selectionCommands.MVSelectSetCommand instance at 0x47e9cf8>, 'name': 'selectSet'}

{'gui': <ViewerFramework.VFCommand.CommandGUI instance at 0x47de7e8>, 'cmd': <Pmv.selectionCommands.MVSelectFromStringCommand instance at 0x47e9ea8>, 'name': 'selectFromString'}

{'gui': <ViewerFramework.VFCommand.CommandGUI instance at 0x47de878>, 'cmd': <Pmv.selectionCommands.MVDirectSelectCommand instance at 0x47ea170>, 'name': 'directSelect'}

{'gui': <ViewerFramework.VFCommand.CommandGUI instance at 0x47de908>, 'cmd': <Pmv.selectionCommands.MVSelectSphericalRegion instance at 0x47ea368>, 'name': 'selectInSphere'}

{'gui': <ViewerFramework.VFCommand.CommandGUI instance at 0x47deb00>, 'cmd': <Pmv.selectionCommands.SelectNoWaterHeteroAtomsCommand instance at 0x47ea518>, 'name': 'selectHeteroAtoms'}

ERROR *****************

Traceback (most recent call last):

File "/home/gxf/mgltools_x86_64Linux2_1.5.7/MGLToolsPckgs/ViewerFramework/📷VF.py", line 941, in tryto result = command( *args, **kw )

File "/home/gxf/mgltools_x86_64Linux2_1.5.7/MGLToolsPckgs/Pmv/📷fileCommands.py", line 810, in doit newparser = PdbParser(filename,modelsAs=modelsAs)

File "/home/gxf/mgltools_x86_64Linux2_1.5.7/MGLToolsPckgs/MolKit/📷pdbParser.py", line 105, in init MoleculeParser.init(self, filename, allLines)

File "/home/gxf/mgltools_x86_64Linux2_1.5.7/MGLToolsPckgs/MolKit/📷moleculeParser.py", line 36, in init self.filename = str(filename)

UnicodeEncodeError: 'ascii' codec can't encode characters in position 10-11: ordinal not in range(128)

Exception in Tkinter callback

Traceback (most recent call last):

File "/home/gxf/mgltools_x86_64Linux2_1.5.7/lib/python2.7/lib-tk/📷Tkinter.py", line 1410, in call return self.func(*args)

File "/home/gxf/mgltools_x86_64Linux2_1.5.7/MGLToolsPckgs/Pmv/📷fileCommands.py", line 614, in guiCallback mols.data.extend(mol.data)

AttributeError: 'str' object has no attribute 'data'

I guess this is probably the encoding issue, but I'm not sure how to solve it.

I think the files are right because they can be read properly on my laptop. Also no problem if you open them in VScode as utf-8 encoding.

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Has anybody met this situation before?

Help me if you can

Thanks a lot!!!

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I would appreciate it if anyone can help me to solve the problem.

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Kindly share your suggestions please.

Hello to all.

I am in process of completing a “pilot study” to evaluate the utility of a novel “instrument cluster” for use in motor vehicles and other dynamic environments. The study design has two independent variables, including the novel instrument cluster and a “traditional” instrument cluster. The single dependent variable is participant response time.

A laptop with a 14” diagonal measure display is used to present stimuli to participants (see below). Participants provide responses to stimuli using the keyboard on the laptop. Software running on the laptop presents stimuli to participants and captures the speed and accuracy of their responses.

Instructions to participants include the request that they respond to stimuli (see below) as quickly as they can. They are also asked to respond accurately. This request is repeated twice during the instructions given to participants. (The rules for responding are also provided, and the participants are shown examples of the two different instrument clusters used in the task.)

The study simulates driving a vehicle. Participants see a road sign, followed two seconds later by an image of one of the instrument clusters. Participants are asked to respond “yes” if the combination of the road sign and the instrument cluster, or the instrument cluster alone, indicates they must “do something” as the driver of the vehicle. They are asked to respond “no” if the road sign and instrument cluster do not require action on their part.

A blank image appears on the laptop’s display for two seconds after the participant enters a response. Then the next road sign/instrument cluster pair is presented. This second pair uses the same instrument cluster as before, but with different “readings.” The second pair also includes a different road sign. This procedure for presenting stimuli and capturing responses continues until the participant has seen and responded to 16 different road sign/instrument cluster pairs. The participant is then allowed to take a short silent break. The process is then repeated, using the other instrument cluster in each pair.

Participants are assigned a “participant number” before they begin the study process. Participants who have an odd participant number see the novel instrument cluster in their first set of sixteen response pairs. Participants with an even participant number see the traditional instrument cluster in their first set of response pairs.

Each road sign is paired with instrument clusters that display the same readings. For example, when a “70 MPH” speed limit sign appears in either set, the novel instrument cluster and the traditional instrument cluster will show the same readings.

The correct response to eight of the item pairs is “yes.” Eight of the item pairs require a “no” response.

Item pairs appear in different orders for the two instrument clusters. These orders were developed using random number generation software.

It has been a number of years since I last needed to calculate statistics to evaluate the results of a study like this one. I believe this might be characterized as a “balanced” repeated measures design with, as above, two independent variables and a single dependent variable. This causes me to want to analyze the data using an appropriate ANOVA method, but I am not confident that that is the better method. I would appreciate input from the members of this learned community.

And then there is the other dependent variable I have not discussed – response accuracy. Obviously, there is an element of “shared” variance attached to this measure. That causes me to wonder if MANOVA is the better analysis to run.

Thank you for taking the time to read this. I will appreciate feedback that is offered.

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How much time can the simulation take on a 4 core laptop?

I tried reducing the meshing to reduce the simulation time, what effect will it have on the results?

Hi, Quite a heavier user of the Hayes macro for some years. I have recently installed SPSS 27 on my laptop and the thing is, the Hayes macro seems not to work with this new version. When I go under the tab 'Extensions' and 'Install custom dialogs', I receive a message saying 'PROCESS_version_3.0_by_Andrew_F._Hayes cannot be installed because it does not have a valid syntax template." Has anyone faced this issue? Any way to deal with it? Thanks for your help ;-) Renaud

I am running Molecular Dynamic simulations in my laptop, for 50000000 steps using GROMACS software but it has terminated (after 36000000 steps) before completion. I have used various command lines to continue the run from the terminated point. But ends up in an error stating

Fatal error:

Type mismatch for state entry energy_sum, code precision is double, file

precision is int: incompatible checkpoint formats or corrupted checkpoint

file.

What can I do to continue the simulations.

Folks, can anyone please suggest if there is a technical possibility to connect a FireWire CCD camera (Zeiss HRM) to a laptop using a USB port? Normally, we use a desktop PC with a FireWire slot, however for some applications we would prefer connecting this camera to a laptop which does not have a FireWire slot. Are there any adaptors which can connect FireWire to USB? Many thanks in advance.

Are there any research study/data related to our daily usage (significantly increased during work from home) of Digital Devices in our day-to-day lives, beyond which it maybe harmful to our mental and physical health?

What is the ideal duration one should use digital device for a day?

Kindly share your opinion.

I am looking to establish theoretical frameworks for such research on one to one computing projects.

We need to download or extract health data such as heart rate, b.p, calories burned etc. from smart health-band. However, most of the bands are associated with their makers' app and do not provide the access of my own data. For example, we bought "GoQii Run GPS Fitness Tracker with Heart Rate Monitor" - but it does not give the permission to download the data to laptop, only provides a value of the health parameters in the app's screen.

I need a device which tracks steps, distance, pace, calories burned, heart rate and duration and most importantly the data can be downloaded to my laptop in .csv/ excel worksheet.

Can you pls help me to get this issue resolved?

I am working on Education in Sub Sahara Africa. I recently found some literature and primary data collection on the use of mobile phones in teacher education and enhanced student learning. On one hand mobile phones are cheaper and access to the net is more widely and consistently available than when using older computer technology (including the tablets disseminated via OLPC). Does anyone know of any research which provides evidence that mobile phone based learning is valuable or a distraction from learning in Africa? I have seen Savoirs communs n°17, Digital Services for Education in AfricaDoes anyone have any experience of teaching in Africa that might consider helping me understand things better?

Dear All,

I'm getting this error from time to time and don't know what causing this: When trying to run/debug an Android app on a real device (Galaxy Samsung S in my case) I'm getting the following error in the Console:

Failed to install *.apk on device *: timeout Launch canceled!

This is all the Console is telling me. LogCat doesn't provide any information. Eclipse Problems view is not showing any issues.

I tried the following steps with no success: 1. Cleaning the project (Project->Clean) 2. Restarting device, Eclipse, laptop, all of the above... 3. Moving the project to a location without spaces, according to Failed to install apk on device 'emulator-5554': timeout

The app has been debugged in the past on that device many times (app is live on Market), but this problem happens every so often, and is VERY FRUSTRATING...

Any help would be greatly appreciated!

Thanks.

I am looking for a reasonable GPU for a Mobile Workstation (Laptop) which can run most State-of-the-art neural networks for images (Computer Vision). Specifically, if anyone has some information on the VRAM effect for deep learning and recently, introduced Nvidia RTX 2080ti (11GB) and RTX 2080 Q-Max (8GB).

Hey guys..

How are ya all

I hope you're doing well...

Lately, I have been facing a problem on my hp laptop which is running in windows 10 os.

First of all, I have a 320 GB hard disk divided to 3 partitions.

C partition is running fine but D and E are not.

Both D and E have turned to RAW. And when I try to use them or get into them, the computer asks me to format them.

When I click format, Blue screen comes up to the screen and the laptop restarts.

Unfortunately, now I am using only half of the storage I have in my laptop...

and I have no access to the rest of it.

I hope you guys help me.

Thx

Dear colleagues,

Do you think that modern information and communication technologies affect our mental and physical health?

We need to convert tilting movement of 1 finger into scrolling function, so that the touchpad act like a joystick. Is it possible? How I can implement it?

Where can a young researcher apply for a free laptop computer?

I'm a researcher that will be using USCF Chimera, Autodock, and Autodock Vina tools. I've been using an Intel i5 8th Gen processor (i5-8250U) lenovo E480 thinkpad with 8GB of RAM, and I'm planning to install the mol. dock apps here. Clock speed of this laptop is at 1.60 - 1.80 GHz range. Thanks everyone!

In this Covid situation, we starting our class since morning from laptop, our reading materials is provided in electronic media,our books all available in e-media,our assignment provided submitted through e media,our discussions with friends, all programs and training is conducted online, published journal all studying online ,so what will be the way to deal with all this situation.

By the way what is parallel processing?

There are a lot of obstacles (challenges) that limit implementation of on-line (or blended) learning especially in the countries that do not have pre-infrastructure to implement this type of learning. Some of these challenges family culture, weakness in WIFI, platforms' problems, No money to buy laptop...etc. Dear in RG group, I hope to gather more challenges and methods to reduce them.

Dear Community,

May I ask you to participate in a survey to understand the behavioral peculiarities of smartphone usage?

The survey will take about 20 minutes. You will have the best experience with a computer/laptop.

https://www.surveymonkey.de/r/M8LV8Z9

Many thanks in advance!

I am investigating heat pipes used in laptops and am having some trouble determining some of the materials used. from initial research I have determined copper zinc and copper nickel alloys as well as some aluminum alloys are used, however I cannot determine the specific alloys that could be used. can anyone provide some incite?

I challenge my students to put away their laptops in the classroom and use pencil/pen and paper instead. The laptop is often a distraction more than a learning tool. My experience is that this strategy improves both the attention, the learning process and the collaboration between the students. What are your views on studies that claim that writing by hand seem to engage the brain in a better way?

Eva Ose Askvik, Ruud van der Weel og Audrey van der Meer: The Importance of Cursive Handwriting Over Typewriting for Learning in the Classroom: A High-Density EEG Study of 12-Year-Old Children and Young Adults. Frontiers in Psychology, 2020. Doi.org/10.3389/fpsyg.2020.01810

Audrey van der Meer og Ruud van der Weel: Only Three Fingers Write, but the Whole Brain Works†: A High-Density EEG Study Showing Advantages of Drawing Over Typing for Learning. Frontiers of Psychology, 2017. Doi.org/10.3389/fpsyg.2017.00706

https://forskning.no/barn-og-ungdom-hjernen-ntnu/derfor-blir-barn-smartere-av-a-skrive-for-hand/1742792 Students writing by hand seem to get better results and get smarter - what are your views on this?

All input files with bravais lattice that contains an angle doesnt run in my Quantum espresso. i even tried running them in my friends laptop but the crash file displays the same problem.

i hope you can help me out in rectifying this issue. i will attach the input file and the output as well.

thank you!

Sofwan Ibrahim