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Photos posted to link to this car's project thread on the Cadillac message boards.
Wow, I think this marks my greatest length of thread-neglect! Almost 5 months! This isn't the new normal though, I will have some time again to work on the car and clear out my parts shelf which once again is getting a little cluttered with the crap I buy on ebay.
I have not done much to the car since my last update besides drive it until the first snow in December. The alternator remains un-rebuilt. Fortunately (?) I made a discovery that the noise I was hearing under certain conditions was not the alternator at all, so it won't need anything besides diode replacement (coming soon).
Now, I did find where the noise was coming from-one of the A.I.R. check valves had failed and sounded something like an accordion for a few minutes when the car was restarted hot. The A.I.R. system switches between two modes of operation-one in which the pump pushes air into the exhaust manifolds, and another in which air gets shot into the catalytic converter-both of which help to keep emissions down. The mode selected depends on what conditions the ECM sees. The check valves keep the boiling hot dirty exhaust from flowing into the hoses and pump which would ruin them in short order-ironically kind of like a diode! In my case, the check valve for the exhaust manifold had failed or was beginning to and on a hot restart the air from the pump would disturb it to create that annoying noise. So it needed to be replaced. Here is the part in question in case you have never heard of/seen it (I didn't)
It is in the vicinity of the power module
The little bastard screws onto a "T" fitting that looked more like plumbing equipment than an auto part to me. On each side of the T, there is a metal line that runs to each exhaust manifold. Clean air flows through the check valve when the switching valve directs air to it.
While the two lines came off easily, the check valve itself was stuck like you would not believe. The tee fits into a 7/8ths wrench, and the captured nut on the valve is 1 inch, and using my two largest wrenches on each with every ounce of strength I had I was only able to break them loose after soaking in transmission fluid for a few days. And even then just barely.
The exact part number of the failed valve was not available so I substituted another one that was otherwise identical. I suspect the differences in part numbers (there are a ton of them) have to do with unique backpressures for every engine configuration GM made across all their cars. I bought one spec'd for a 307 Olds V8, which I figure is as close to the 4100 in terms of back pressure as I could get. Could be totally wrong on that too. Anyway, it no longer makes the noise!
Now the other part of the A.I.R. system is for the catalytic converter. The check valve on this one was good, and I suspect it lives a much easier life than the one for the manifolds as it is not subjected to the high pressures or heat. But it needed love too, when I had the catalytic converter changed, the shop cut off the end of the pipe which entered the old bead converter at a 90 degree angle and used high temperature hose to make the connection.
I can't say I was happy with the way it looked but it seemed to do the job. Except that when braking or accelerating hard, the hose would allow the metal tubing (now loose) to move back and forth which made for an annoying knock. I wasn't sure what to do but I was certainly surprised when I learned Rockauto still stocks this pre-bent metal tubing unique for the 84-85 Eldorado. Go figure. I ordered it and when it arrived, I was disappointed to discover that it lacked the mounting bracket that goes up near the engine. So I ended up taking my old and new tube to a welder who transferred the bracket to the new one for me.
I also put a new check valve on it. Note that this valve lacks the captured nut. That is a catalytic converter check valve and it is physically smaller than the one for the manifold. They thread size is the same, but the nipple is the part that won't allow you to put the other diameter hose on it.
Here it is mounted to the "new" cat. I have to spin that clamp at the Y fitting, it should face the passenger side. Bah shops! So, that concludes today's edition of what invisible repair I managed to waste my time and money on!
Springfield, Oregon
Artist: Bayne Gardner 2025
So nice to see Bayne added Slithers to the alley wall in Springfield yesterday, Halloween. Rather appropriate, don't you think?
OM System OM-5
Olympus 9-18mm
Sometimes septic systems are not installed at the site of a home. It this case, sewer lines from a number of homes share the same trenches as the wastewater is moved to an adjacent area where the drainfields are installed.
17" touch screen. It was showing limited functionality - GPS and phone integration. Also had energy management screens, as well as temperature adjustments.
These provide a basis of a Digital Zone System.
This was made by:
- 18% gray patch
- Loading the patch into RawTherapee
- Increasing/Decreasing by 1EV
- Noting the gray value at each 1EV step
One of these synthetic Step Wedges shows how 1EV steps descend well beyond 0EV (which is the pure black value as described by the original film-era Adams/White Zone System).
The second Step Wedge shows what happens when the 1EV Step Wedge is used, keeping 0EV as Zone 5, pulling the bottom/black end of the "Curve" into Zone 0/-5EV, then noting the values from Zone 0/-5EV through Zone 4/-1EV.
It is this Step Wedge what I use to evaluate in-camera Sony Creative Style B&W ASIC generation. I write about this on my blog..
Field-telephone used by British and Commonwealth forces during WWII. The original 'D' was developed during WWI. Signalling was achieved with a buzzer / chopper system, rather like a 'Fullerphone' telegraph set, offering virtually secure signalling over long distances.
A magneto bell is provided on the instrument, but there is no magneto ringing from the telephone. The standard two-bobbin polarised bell-motor can be seen, but the gong is missing. It should sit on the top.
The Garvanza Park Stormwater BMP Project captures and cleans more than one million gallons of rain and runoff. Water is diverted into two large cisterns under the park. Water is cleaned and filtered and soaks into the soil to replenish the groundwater. The other chamber stores water to irrigate the park. The project will help save water and keep the Arroyo Seco, L.A. River and the ocean healthy and clean. Water hungry turf grass has been replaced by a drought tolerant buffalograss, and additional trees have been planted throughout the park.
The project renovates a popular neighborhood park in a disproportionately park poor, income poor Latino community. The park is at the historic site of the Garvanza Pumping Station and Highland Reservoir, Los Angeles Historic Cultural Monument 412, in the Highland Park Garvanza Historic District.
This multibenefit park and clean water project was undertaken as part of the Clean Water Justice settlement Clean Water Justice settlement to eliminate sewer spills in the Baldwin Hills, South Central Los Angeles, Highland Park and Glassell Park, and improve the sewer system city wide.
Click here to see a slide show of the Grand Opening of the Garvanza Park BMP Stormwater Project.
Sometimes septic systems are not installed at the site of a home. It this case, sewer lines from a number of homes share the same trenches as the wastewater is moved to an adjacent area where the drainfields are installed.
A context free grammar with associated transforms in the plane and RGB space made these...
rules like
a -> bc
b -> bd
but never like:
d -> dd
each symbol is associated with a rotation, shift and scale in the plane, and a step in a direction in the RGB color space.
There are no real terminal symbols, termination occurs when the sub-tree would be less than a pixel in size, and the pixel at the resulting position is coloured.
Much like an L-System, I would say.
Actually because the tree overwrites itself in the image, does that make it context-sensitive, in that the result depends on other symbols? Certainly you need the image buffer as well as the stack to represent the process.
Poster for my exhibition A System of Possible Movements
Galleri Monitor, Chalmersgatan 4
14 – 16 Sept. 2012
In 2008 NYCDOT unveiled the first project of its temporary art program through the collaborative efforts of the DUMBO Business Improvement District, artist Tattfoo Tan and more than 50 local schoolchildren. The Malaysian-born artist enlisted in the help of the children to paint hundreds of colorful panels using specialized paints matched to the colors of fruits and vegetables. The tapestry of color – 8 feet high and 70 feet long – beautified a corrugated metal fence alongside a storage yard beneath the Manhattan Bridge.
NYCDOT Urban Art Program, pARTners
Nature Matching Systems by Tattfoo Tan
Presented with DUMBO Business Improvement District
Front and Adams Streets, Brooklyn
Attachment theory describes several behavioural systems, the function of which is to regulate human attachment, fear, exploration, care-giving, peer-affiliation and sex. Attachment is defined as any form of behaviour that results in a person attaining and retaining proximity to a differentiated other. The primary caregiver is the source of the infants stress regulation and, therefore, sense of safety and security. Attachment theory emphasises the role of the parent as mediator, reflector and moderator of the childs mind and the childs reliance on the parent to respond to their affective states in ways that are contingent to their internal experience, a process often referred to as secure base/safe haven functioning. Within the close parent-child relationship neural networks dedicated to feelings of safety and danger, attachment and the core sense of self are sculpted and shaped. These networks are conceptualised as internal working models of attachment.
Characteristic patterns of interaction operating within the familys caregiving-attachment system give rise to secure, insecure and disorganized patterns of attachment. These discrete patterns have been categorized using the Strange Situation research procedure, which observes the young childs behaviour when separated and reunited with his or her primary caregiver. Attachment patterns are represented in the childs internal working models of self-other relationships. Secure attachment is promoted by the interactive regulation of affect, which facilitates the recognition, labelling and evaluation of emotional and intentional states in the self and in others, a capacity known as reflective function or mentalization. The recognition of affects as having dynamic, transactional properties is the key to understanding behaviour in oneself and in another. The child comes to recognize his or her mental states as meaningful self-states via a process of parental affect mirroring and marking. Secure children are able to use sophisticated cognitive strategies to integrate and resolve their fear of separation and loss.
When the parent is unavailable, inconsistent or unpredictable, the infant develops one of two organized insecure patterns of attachment: avoidant or ambivalent-resistant. These defensive strategies involve either the deactivation or hyper-activation of the attachment system. Deactivation is characterized by avoidance of the caregiver and by emotional detachment. In effect, the avoidant child immobilizes the attachment system by excluding thoughts and feelings that normally activate the system. Hyper-activation is manifested by an enmeshed ambivalent preoccupation with the caregiver and with negative emotions, particularly anger. However, in common with the avoidant child, the ambivalent child appears to cognitively disconnect feelings from the situation that elicited the distress. Disorganised-disoriented attachment is discussed below.
Attachment research, then, demonstrates that discrete patterns of secure, insecure, and disorganized attachment have as their precursor a specific pattern of caregiver-infant interaction and their own behavioural sequelae. Repeated patterns of interpersonal experience are encoded in implicit-procedural memory and conceptualized as self-other working models of attachment. These mental models consist of generalized beliefs and expectations about relationships between the self and key attachment figures, not the least of which concerns ones worthiness to receive love and care from others.
In sum, the care-giving environment generally, and the infant-caregiver attachment relationship particularly, initiate the child along one of an array of potential developmental pathways. Disturbance of attachment is the outcome of a series of deviations that take the child increasingly further from adaptive functioning. Child abuse and cumulative developmental trauma violate the childs sense of trust, identity and agency and have pernicious and seminal influences on the developing personality. In essence, internal working models of early attachment relationships provide the templates for psychopathology in later life, which may include violent, destructive and self-destructive forms of behaviour. In attachment theory, the main purpose of defence is the regulation of emotions. The primary mechanisms for achieving this are distance regulation and the defensive exclusion of thoughts and feelings associated with attachment trauma.
Early trauma in the form of abuse, loss, neglect and severe parent-child misattunement compromises brain-mediated functions such as attachment, empathy and affect regulation. From an attachment theory perspective, patterns of attachment are encoded and stored as generalized relational patterns in the systems of implicit memory. These are conceptualized as cognitive-affective internal working models which are seen as mediating how we think and feel about ourselves, others and the relationships we develop. Although open to change and modification in the light of new attachment experiences, whether positive or negative, these non-conscious procedural models, scripts or schemas within which early stress and trauma are retained, tend to persevere and guide, appraise and predict attachment-related thoughts, feelings and behaviours throughout the life cycle via the implicit memory system. Psychopathology is seen as deriving from an accumulation of maladaptive interactional patterns that result in character traits and personality types and disorders.
Disorganised attachment may occur when the childs parent is both the source of fear and the only protective figure to whom to turn to resolve stress and anxiety. In such instances, neither proximity seeking nor proximity avoiding is a solution to the activation of the childs attachment and fear behavioural systems. If the trauma remains unresolved and is carried into adulthood, it leaves the individual vulnerable to affect dysregulation in interpersonal conflict situations that induce fear, hate, shame and rage. In such cases, alcohol and illicit drugs are often resorted to as a maladaptive means of suppressing dreaded psychobiological states and restoring a semblance of affective equilibrium.
Findings show that disorganised attachment developed in infancy shifts to controlling behaviour in the older child and adult, reflecting an internalized mental model of the self as unlovable, unworthy of care and support, and fearful of rejection, betrayal and abandonment. Disorganised attachment is associated with a predisposition to relational violence, to dissociative states and conduct disorders in children and adolescents, and to personality disorders in adults. This state of mind constitutes a primary risk factor for the development of borderline, anti-social and sociopathic personality disorders. The rate of such disorders in forensic settings is particularly high. Clinically, dissociated traumatic experience is unsymbolized by thought and language, being encapsulated within the personality as a separate, non-reflective reality which is cut off from authentic human relatedness. The information contained in implicit memory may be retrieved by state-dependent moods and situations. Dissociated archaic internal working models are then activated, influencing and distorting expectations of current events and relationships outside of conscious awareness, particularly in situations involving intense interpersonal stress. In such situations, the self is felt to be endangered, thereby increasing the risk of an angry and potentially violent reaction.
The Trawex’s hotel reservation system is the core of our solutions. Its application framework combines latest technology with advanced user features to deliver the hotel industry’s most flexible and easy-to-use online reservation system and distribution solution.
Literature from Plectron showing different alerting and control units the company made in the 1980s. By this time they were owned by Woodson Electronics. They went out of business in the late 1990s.
The silver rectangle is the heat exchanger (wrapped in aluminized insulation)
The leftmost insulated pipe (red arrow pointing down) is the hot water supply from the Polaris water heater tank. The brown pump is controlled from the green logic box on the far right. This enters the bottom of the heat exchanger, flows upward (big red arrow), and returns to the heater tank via the vertical pipe with the blue up arrow.
The rightmost insulated pipe (no arrow in this photo) is the radiant heat manifold cold water return. This enters the heat exchanger via the horizontal pipe with the blue arrow pointing left. It exits the heat exchanger via the horizontal pipe with the red arrow pointing right. It then enters the thermostatic mixer (green knob), flows down into the pipe with the red arrow pointing left, and through the green air bubble remover.
After the air remover, the heated water flows up through the green pump (controlled by the logic box), then either goes up and out to the radiant heat manifold (vertical pipe with red up arrow) or gets shunted by the pressure regulator (black knob) into the pressure bypass (vertical pipe with red down arrow).
Brought my rarely used Fisheye out today for the Vancouver-area Four Thirds Photographers photowalk in New Westminster. Wow what a large group today, such a welcoming surprise (thx Eric for organizing it, as usual!)
The railways there sure look interesting, but with a gloomy day like today, my photos didn't turn out to be too useable without some rather profound post-processing. So here you go, New Westminster railways with a bit of a spice. Just wish my feet aren't there, lol, maybe I'll crop them out later.
KABK Graduation Festival
Den Haag 2016
The “Collide Sound System” are four rotating cilinders that the audience can control. The soundscape that each sound system will produce will be sound engineered with Binaural beats to emphasise the different dimensions of the soundwaves. The sound cilinder rotate the sound waves will collide in several spots in the space, this will create an extra musical layer that our brain will try to fill this gap. The audience have the abillity to explore the space and experience how the soundwaves will travel in the space. They become more aware of the space and the many possibilities how sound waves can create different acoustic atmospheres as well as experiences.
THESIS: Sonitus
Today many designers, architects, sound artists and politicians are working on how to create a better acoustic environment and soundscape atmosphere in the urban landscape. The relation between surroundings, sight specific objects and sonic artworks have the ability to engage with the aural environments in public spaces, creating areas for people to enjoy these acoustically engineered harmonic spaces. These spaces could add to a better social connection between the people and the surroundings, which in turn might increase the liveability in cities and their urban environments.
I got this unobstructed view of the Rogue's Reef. On the other side was their theater, where they performed their funny, bawdy songs. Here are two of them, which I shot and put on YouTube:
www.youtube.com/watch?v=HTIlv7PCVp4